Method and device for switching between common and individual channels for provisioning of broadcasting content services transmission in wireless telephone network

FIELD: information technologies.

SUBSTANCE: wireless communication network comprises different base stations and subscriber stations. Every base station provides services of broadcasting content transfer to subscriber stations via communication channels of one of the following types: 1) common channel used by multiple subscriber stations, 2) individual channels, every of which is separated for use by separate subscriber station. In response to one or several preset changes of condition, i.e. change of number of subscriber stations that request the program, change of transmission power level used by base station, or in case of other change of network condition, communication channel type used for provisioning of broadcasting content to one or several subscriber stations is switched over.

EFFECT: delivery of broadcasting content with use of errors and individual channels combination, depending on whatever is more preferable in available circumstances.

5 cl, 28 dwg

The technical FIELD TO WHICH the INVENTION RELATES.

The present invention in General relates to wireless telephone networks with the added capacity for the delivery of broadcast content. More precisely, the invention relates to the use as a group (shared)and private (dedicated) channel for delivery of broadcast content and operations switching between using a shared/individual channels if necessary.

The LEVEL of TECHNOLOGY

Many communication systems transmit information signals from the station the source is physically a specific destination station. First information signal is converted into a form suitable for efficient transmission over the communication channel. Conversion or modulation, the information signal implies changing the carrier signal in accordance with an information signal so that the spectrum of the resulting modulated carrier is within the bandwidth of the channel. At the destination station the original information signal is recovered from the modulated carrier signal received over a communications channel. Such reversal in the General case is performed by use of the process, the reverse process of modulation used in the source.

Modulation is also facilitates multiple access, that is, the simultaneous transmission and/or reception of multiple signals over a common communication channel. Communication system with multiple access often include a lot of user modules that require consistent maintenance of relatively short duration, and not continuous access to the shared communication channel. In the art there are several methods of multiple access, such as multiple access with time division multiplexing (TDMA), multiple access frequency division multiple access (FDMA), multiple access with amplitude modulation (AM) and multiple access code division multiple access (CDMA) spread spectrum. Communication systems, multiple access can be wireless or wired and can serve for the transmission of voice and/or data.

In the communication system with multiple access communication between users occurs through one or more base stations. In one example, the user of the first wireless subscriber station communicates with a user of the second wireless subscriber station, transmitting data through a return line to the base station. The base station receives the data and, if necessary, sends data to another base station. Ultimately, the data plumage is up in a straight line, the destination base station to the second subscriber station. "Direct line" means a transmission from the base station to the subscriber stations and the "reverse" line indicates transmission from the subscriber station to the base station. In many communication systems, a straight line and return line use different frequencies. Communication can also occur between the user of the subscriber station and the other user ground station. In this case, the base station receives data from the subscriber station through a return line and sends the data via the public switched telephone network (PSTN) ground station. Communication also occurs in the opposite direction. The above-mentioned services wireless data-sharing are examples of services communicate point-to-point. In contrast, a broadcast service delivers information from the Central station to the multiple subscriber stations ("multidrop mode"). A basic model of a broadcast system includes a broadcast network users that are serviced by one or more Central stations, transmitting news, movies, sports events or other content to users. In addition, each subscriber station monitors the signal of the total broadcast a straight line. Since the Central station rigidly defines the content, users typically do not transmit the data is back. Examples sharing a broadcast services communication system are television, radio, etc. Such communication systems are usually highly specialized.

In connection with the recent advances in wireless telephone systems, there is a growing interest in using the existing telephony infrastructure, mainly related to the type of point-to-point, for the delivery of broadcast services. In this respect, some important achievements obtained by QUALCOMM incorporated, San Diego, California. The following link describes the various achievements of the Corporation QUALCOMM relating to the use of a common communication channel for delivery of broadcast content in a wireless telephone network.

Application for U.S. patent No. 09/933978, filed August 20, 2001 in the name of Sinnarajah, etc., and entitled "Method and apparatus for signaling in broadcast communication system". Application for U.S. patent No. 10/192132 filed July 9, 2002 and entitled "Method and system for multicast service initiation in a communication system". Application for U.S. patent No. 09/933912, filed August 20, 2001 and entitled "Method and system for utilization of an outer decoder in a broadcast communication service system". Application for U.S. patent No. 09/933971, filed August 20, 2001 and entitled "Method and apparatus for overhead messaging in a wireless communication system". All of these sources is included in the present description wowsa its entirety by reference.

Using a different approach to the concept of the use of wireless telephone networks for the delivery of broadcast content, the link below describes the use of individual communication channels for delivery of broadcast content using calls "point-to-point: application for U.S. patent No. 10/278516 filed simultaneously with the present application in the name Ragulan Sinnarajah, and entitled "Method and apparatus for commencing shared or individual transmission of broadcast content in a wireless telephone network. The above source is included in the present description in its entirety by reference.

Although the above application are satisfactory in many respects, the authors of the present invention have discovered up to this unknown ability to deliver broadcast content using a combination of General and individual channels, depending on what is preferable in the circumstances. This approach, as was found by the authors of the present invention, leads to a number of specific tasks, as the use of both shared and private broadcast communication channels is unknown in the art.

DISCLOSURE of INVENTIONS

Wireless communication network includes various base stations and subscriber stations. Each base article is ncia provides subscriber-stations of the transmission of broadcast content over communication channels of the following types: 1) common channel for use by multiple subscriber stations, 2) individual channels, each dedicated for use by an individual subscriber station. In response to a given change in one or more conditions (States) perform switching type communication channel used to provide the broadcast program content to one or more subscriber stations.

BRIEF DESCRIPTION of DRAWINGS

Fig. 1 is a block diagram of some of the hardware components and connections between them in a wireless communication network.

In Fig. 2 shows an illustrative device for processing digital data.

In Fig. 3 shows an illustrative media signal.

Fig. 4 is a block diagram of some of the hardware components and connections between them in the subscriber station that has been implemented as a wireless remote device.

In Fig. 5A shows a state diagram of the working conditions of the subscriber station.

In Fig. 5B-5D shows a block diagram illustrating the exchange of messages between the subscriber station and the base station in the IDLE state, ACCESS and TRAFFIC, respectively.

In Fig. 6 shows a sequence chart of operations illustrating operation of a wireless communication network connected to the switch common and individual channels for providing broadcast content.

Fig 7A shows the chart, illustrating the transition of the subscriber station from the base station using the shared delivery of broadcast content to the base station using individual delivery of broadcast content.

In Fig. 7B shows a diagram illustrating the transition of the subscriber station from the base station, using individual delivery of broadcast content to the base station using the shared delivery of broadcast content.

In Fig. 8A-8D shows a sequence diagram of operations that describes the operation of the base station when the transition of the subscriber station from the first base station (transmitting broadcast program on a shared channel) to the second base station (transmitting the same program, using individual broadcast channels).

In Fig. 9A-9D shows a sequence diagram of operations that describes the operation of the base station when the transition of the subscriber station from the first base station (transmitting broadcast program on an individual channel) to a second base station (transmitting the same program on a shared broadcast channel).

In Fig. 10-11 shows a sequence diagram of operations that describes the operation of the subscriber station when the transition from the first base station (transmitting broadcast program on a shared ka the Alu) to the second base station (transmitting program according to the individual channel).

In Fig. 12-13 shows a sequence diagram of operations that describes the operation of the subscriber station when the transition from the first base station (transmitting broadcast program on individual channels) to the second base station (transmitting the program on a shared channel).

In Fig. 14 shows a diagram of a sequence of operations that describe the operation of a subscriber station receiving broadcast content on a common communication channel, and an additional call is initiated point-to-point.

In Fig. 15 shows a diagram of a sequence of operations describing the operation of the base station corresponding to Fig. 14.

In Fig. 16 shows a sequence chart of operations that describes the operation of the base station, checking the network status and make necessary changes in the type of broadcast channel.

In Fig. 17-18 shows a sequence diagram of operations that describes the operation of the subscriber station when changing the type of broadcast channel, the desired base station according to Fig. 16.

The IMPLEMENTATION of the INVENTION

The nature, objectives and advantages of the present invention will become more understandable to experts in the art after studying the following detailed description in conjunction with the attached drawings.

COMPONENTS HARDWARE CF THE of FUNDS AND INTERCONNECTS

Introduction

As mentioned above, in the present description used wireless communication network that contains, among other components, various base stations and subscriber stations. Some or all of the base stations is configured to provide services broadcasting content to the subscriber station using the communication channels of the following types:

1) common channel for use by multiple subscriber-stations, 2) individual channels allocated for use by individual subscriber stations. In response to one or more specified changes in the state of switches type of communication channel used to provide the broadcast program content to one or more subscriber stations.

Described in more detail below, the General structure and operation of such system and its various components.

Wireless communication systems

According to an illustrative model of a broadcast system, the multiple subscriber stations served by one or more base stations, which transmit broadcast content, such as news, movies, sports events, etc. In Fig. 1 shows a block diagram of communication system 100, configured to provide high-speed services W is recovery (HSBS) in different variants of implementation of the present invention.

Source of broadcast content are one or more servers 102 content (CS). The server 102 content contains one or more units of digital data, such as a personal computer, a workstation, a mainframe, a computer network, the microprocessor or other computer devices to deliver formatted in the form of packets (or formatted in a different form) of broadcast content in the nodes 106 service broadcast packet data (BPDSN) via the Internet 104 or another network (not shown)other than the Internet, or through a direct connection. Depending on how you implement the nodes 106 may use the same or different hardware, such as the switching nodes of the packet data (PDSN) of the types well known in wireless telephony. In accordance with the purpose of each of the service nodes 106 delivers the packets to the appropriate module 108 control functions package (PCF). Each module 108 controls various functions of base stations 110 that are relevant to the delivery of services for high-speed broadcast. Among other functions, the modules 108 send broadcast packets to the base station 110. Each module 108 may use the same or other hardware, and a base station controller (BSC).

The base station 110 deliver Shi is acoustically content and regular phone calls to the subscriber station 114. Base station 110 may be implemented using the same hardware that is used in conventional base stations, commercially available at present.

The illustrative device the digital data processing

Entities that process data, such as components 102, 106, 108, 110, 114 (Fig. 1), or one or more of their subcomponents may be implemented in various forms. One example is the digital processing of the data shown in Fig. 2 in the form of hardware components and interconnections of the device 200 digital data processing.

The device 200 includes a processor 202, such as a microprocessor, personal computer, workstation, controller, microcontroller, state machine or other processing device connected to the device 204 storage. In this example, the device 204 storage includes device 206 storage quick access, as well as non-volatile device 208 storage. The device 206 storage quick access may include random access memory (RAM, RAM) and can be used to store program instructions executable by the processor 202. Non-volatile device storage 208 may include, for example, RAM with battery backup, EEPROM, flash PROM, one or more storage devices, the magician is etnich disks, such as "hard disk"storage device, magnetic tape or any other suitable storage device. The device 200 also includes a device 210 I/o, such as a line, bus, cable, electromagnetic communication line or other medium that allows the processor 202 to communicate with other hardware external to the device 200.

Despite the above specific description, specialists in this field (using the present description) recognize that the above described device may be implemented as a device having a different design, without going beyond the scope of the present invention. As a concrete example, one or more of the components 206, 208 may be missing; in addition, the device 204, 206 and/or 208 may be provided as part of the processor 202, or even external to the device 200.

Logic

In contrast to the digital data processing described above, various embodiments of the present invention uses logic instead of executable computer instructions to implement various processing modules, such as described above. Depending on the specific application requirements in terms of speed, value, instrumental value, and the like, such logic may be implemented as a specialized integrated circuit (ASIC)containing thousands of integrated transistors. ASIC may be implemented by technology CMOS, TTL, VLSI or other appropriate technology. Other alternatives include chip digital signal processor (DSP, DSP), a scheme of the discrete elements (such as resistors, capacitors, diodes, inductors and transistors), in-circuit programmable gate arrays (FPGA), programmable array of logic elements (PLA), programmable logic devices (PLD), etc.

Wireless phone

In Fig. 4 shows the structure of an illustrative subscriber stations 114 in the form of a wireless phone 400. Telephone 400 includes a speaker 408, the interface 410 of the user, the microphone 414, the transceiver 404, the antenna 406, the controller 402 together with other optional circuit elements that can be included (or not included), depending on the application. Control device 402, which may contain the schema, such as discussed above in connection with Fig. 3-4, controls the operation of the components 404, 408, 410 and 414, as well as the transmission of signals between these components.

Although the illustration shows the wireless phone 400, the subscriber station may be mobile or stationar the th. In addition, the subscriber station is any device working with data, which communicates through a wireless channel or through a wired channel, for example using fiber optic or coaxial cable. In addition to (or instead of) wireless or wired phone, a subscriber station may be made in the form of other devices, including, without limitation, PC card, flash card, external or internal modems, etc.

Work

After you have described the various structural features will be described some aspects related to the present invention. As mentioned above, the system 100 includes a base station 110 that provides subscriber stations 114 services broadcast content through General and/or individual channels. In response to a given change in one or more conditions (States) perform switching type communication channel used to provide the broadcast program content to one or more subscriber stations.

Wednesday transfer signal

If any functional feature of the present invention is implemented using one or more mashinostryenia program sequences, such sequences can be implemented in R is slichnih forms migration environment signal. In the context of Fig. 2 such an environment transfer signal may contain, for example, the storage 204 or other environment of the transfer signal, such as a magnetic disk 300 for storing data (Fig. 3), which directly or indirectly may appeal the processor 202. Regardless of where you store instructions store 206, the disk 300 or elsewhere, they can be stored on the set of machine-readable data carriers. Some examples include store with direct access (e.g., a conventional "hard drive"), a redundant array of inexpensive disks ("RAID"), or other device with immediate access ("DASD")), storage, sequential access, such as magnetic or optical tape, electronic non-volatile memory (such as ROM, EPROM, flash PROM, or EEPROM), RAM battery backup, optical storage devices (e.g., CD-ROM, WROM, DVD, digital optical tape), punch cards, or other suitable environment transfer signal including Wednesday analog or digital signal, a communication line communication and wireless connections. In the illustrative embodiment of the invention a machine-readable instructions may include software object code, compiled code, written in languages such as Assembly language, etc.

Logic

Unlike cf the water transfer signal, as discussed above, some or all of the functional features of the present invention can be implemented using logic and not executable processor instructions. For this logic configure in such a way that it carries out the method of the present invention. The logic circuitry may be implemented using various types of circuit elements, as discussed above.

An introduction to the work

As mentioned above, each base station 110 of the present invention provides subscriber stations 114 transmission of broadcast content over communication channels of the following types: 1) common channel for use by multiple subscriber-stations, 2) individual channels, each dedicated for use by an individual subscriber station. In response to a given change in one or more States perform switching type communication channel used to provide the broadcast program content to one or more subscriber stations.

Subscriber station - model call

Each subscriber station operates according to the diagram 560 state Figa. Able 562 WAITING for the subscriber station monitors the shared channel paging and General utility channel, described in more detail below. These channels is the tsya General in the sense each base station broadcasts on these channels for all subscriber stations in the service area. In brief, a shared channel paging specifies the subscriber stations on incoming calls and General service channel provides various information related to the system. Able 562 WAITING subscriber station may further receive from the base station broadcast content on one or more General broadcast channels. Able 562 WAITING transmitter of the subscriber station is switched off.

In one case, the transition 563 subscriber stations from the state 562 standby state 564 ACCESS can be performed when the subscriber station sends a REGISTRATION message indicating the neighboring base stations on the presence of the subscriber station identification, distinguishing features, etc In this case, the state 564 ACCESS switches 561 back to the state 562 WAITING messages after REGISTRATION.

In another situation, the transition 563 of the state 562 standby state 564 ACCESS can be performed during establishment of the call point to point or subscriber station, or any other party. For example, if the call initiates the other side, the subscriber station receives a paging message on the common paging channel. After answering subscriber stations on the page is movoe message on a shared channel access", the subscriber station receives a channel assignment traffic, which performs the call point to point. The subscriber station initiates an outgoing call, sending a message through the channel of the call, and then taking the same way the purpose of the channel.

The transition 565 from the state 564 access to the state 566 TRAFFIC occurs when an incoming or outgoing call is made, and the subscriber station and the base station starts the communication channel traffic. Able 566 TRAFFIC subscriber station uses individual trafc channel to perform communication point-to-point with the other party. Newly installed call point-to-point can transmit speech, data or even broadcast information, as discussed below. If the call point is used for transmission of broadcast content, then it overrides any General broadcast, which the subscriber station is received before this able 562 WAITING.

The transition 567 of the state 566 TRAFFIC condition 562 WAITING is performed at the completion of the call point to point, or one of the parties, or if the connection is lost in some other way. The transition 567 includes the release of traffic channels used for call point-to-point. If the specified call point-to-point contained broadcast content, then going 567 optional the tion may resume delivery of broadcast content through a common channel in a state 562 WAITING.

Channels

On FIGU-5D shows some of the main communication channels used to transmit information between the subscriber station and the base station during a state of WAITING, ACCESS and TRAFFIC described above. Broadcast channels described in this application can be used for data, audio, video, and other desired content.

"The communication channel/line" refers to a physical or logical channels in accordance with the context. "Physical channel" means a communication path through which the signal propagates, are described in terms of modulation parameters and coding. "Logical channel" means a communication path within the levels of the Protocol, either the base station or subscriber station. "Reverse channel/line" means a communication channel/line that the subscriber station sends signals to the base station. "Direct channel/line" means a communication channel/line in which a base station sends signals to the subscriber stations.

PENDING

Fig. 5B relates to the PENDING state. The base station 504 broadcasts on official channel 505, which takes the subscriber station 502, and other subscriber stations served by this base station. Official channel 505 contains periodically repeat systemno the information such as information about neighboring base stations, access information (for example, the recommended power levels, maximum message size, and so on) and system parameters (for example, versions, products, supported features, and so on). In the system of the CDMA-2000 service channel 505 may include a broadcast control channel (F_BCCH).

As an example, the content service channel 505 may include a message broadcast system parameters (BSPM), which defines each broadcast program is available through General and/or individual channels. "Program" is a stream of broadcast content, such as news CNN, ESPN, or information about the weather, etc. Message broadcast system parameters specifies which programs are available on each of the common channels of the base station (and frequency or other identification of the channel), and what programs can be obtained on individual channels (with the definition of specific frequencies in the time of establishing services on an individual channel). In a message broadcast system parameters are also listed specific attributes of each General broadcast channel, such as Walsh code, modulation type, coding Viterbi, data rate, error correction, etc.

The base station 504 also the Veda is the transmission on a shared channel 506 paging, you take all subscriber stations served by this base station. All subscriber stations served by the base station 504, monitor the channel 506 paging, so that they are notified of the call point to point or other designated information. In the CDMA-2000 channel 506 paging presents a direct control channel (F_CCCH).

General broadcast channel 508 potentially covers many of the common broadcast subchannels (parallel channels)transmitted by the base station 504 for use of subscriber stations in the service area of a base station. More General, the communication system 100 enables high-speed services through the introduction of direct broadcast additional channels (F_BSCH), supporting high speed data transfer and which can be taken multiple subscriber stations. "Direct broadcast channel" contains one direct physical channel that carries broadcast traffic. One or more channels of high-speed broadcast service multiplexer split time in one direct General broadcast channel. Thus, the channel 508 may simultaneously carry several different broadcast programs.

General broadcast channels 508 can b shall be freely available to all subscriber stations, or available only to those subscriber stations that perform some actions by subscription. Since the channel 508 is transmitted to all subscriber stations in a service area, eventually the base station determines whether or not a user can access the broadcast, based on the fact, whether the user is subscribed. As an example, the General broadcast channel can be encrypted with the given code, which is available only to subscribing subscriber stations.

The mechanism of subscription broadcast services is discussed in the link below, included in the present description in its entirety: application for U.S. patent No. 09/934021, filed August 20, 2002 and entitled "METHOD AND APPARATUS FOR OUT OF BAND TRANSMISSION OF BROADCAST SERVICE OPTION IN A WIRELESS COMMUNICATION SYSTEM". In the above-mentioned request to the General broadcast channel 508 is referred to as direct broadcast channel (F_BSCH).

Status

Figs refers to the condition of the ACCESS. The subscriber station 502 continues to receive service channel 505, the channel 506 paging and General broadcast channel 508. Common channel 522 of access used by all subscriber stations served by the base station 504. In order to start the call point-to-point, channel 522 may be used in two ways. In case the e incoming calls to the subscriber station 502 uses the channel 522 access to respond to a page message, when another station initiates a call point to point with the subscriber station 502. In the case of outgoing calls, the subscriber station 502 uses the channel 522 access to request call origination point to point. In the Protocol, CDMA-2000, channel 522 access presents a reverse access channel (R_ACH). During the state 564 ACCESS the subscriber station 502 may continue tracking the General broadcast channel 508.

In addition to the call origination point to point, the subscriber station 502 may use the channel 522 access for non-periodical transmission of the REGISTRATION message. This is used to specify the wireless network location of the subscriber station 502 and other relevant information. If the REGISTRATION message or similar message occur in the state 564 ACCESS, the subscriber station 502 is returned to the state 562 WAITING without going into a state of 566 TRAFFIC.

State TRAFFIC

Fig. 5D refers to the state 566 TRAFFIC. In this state, the channels 552, 554 traffic jointly carry bi-directional data call point-to-point between the subscriber station 502 and the base station 504. Channels 552, 554 are dedicated channels for the personal use of the subscriber station 502. Direct channel 552 traffic, "logical" channel, includes parallel physical channels, such as channel a con is enta traffic and channel 552b signaling traffic. Channel a content traffic migrates content, such as voice information or data transmitted from the base station 504 in the subscriber station 502. Channel 552b signaling traffic transfers the alarm information, such as service information, system information, metadata, and other information that describes the channel a and/or its content. In an alternative embodiment, the channels a, 552b may be unrelated and not parallel channels, as described above. Reverse channel 554 traffic also includes parallel channels a, 554b content traffic and signaling traffic carrying data in the direction opposite to the direction of the channel 552.

In the state of the TRAFFIC of the subscriber station does not use the channel 522 access service channel 505 or channel 506 paging, because this information is transmitted via dedicated channels 552b, 554b.

During the state 566 TRAFFIC the subscriber station 502 may continue receiving the broadcast content. However, the delivery of broadcast content concurrently with the call 552/554 point-to-point should be made in a unidirectional channel 556 point-to-point, not as a General channel 508. This is mainly because procedures alarm and control necessary for the normal operation of the mobile station, a very small difference in the channels of the state ogidan the E compared with the state of the TRAFFIC, and the mobile station can only be in one of these States at any given time. Thus, during use of the channels 552, 554 traffic exchange broadcast information necessary to make the channel 556 traffic, and the content is passed on 556a and alarms for 556b.

In General, any direct channel, suitable for call point-to-point, can be used as an individual broadcast channel 556. Here are a few more special options. One option, for example, used in CDMA-2000, is a straight main channel (F_FCH) or direct dedicated control channel (F_DCCH). This channel allows 14,4 kbit/s. Another option is to direct additional channel (F_SCH), which provides up to 1 Mbit/sec. Faster option is a direct channel packet data (F_PDCH)providing service with speeds up to 2.4 Mbps.

Unlike state 562 WAITING and state 564 ACCESS, in which the subscriber station 502 communicates only with the base station, the subscriber station 502 in the state TRAFFIC can exchange traffic, broadcast content and information signaling with multiple base stations to perform soft switching service, obtain a redundancy signal and achieve other goals. the thus, the experts in the art (using the present description) recognize that in the present description reference to the "base station" (in the singular) is made for the sake of brevity and simplicity. The subscriber station can simultaneously communicate with multiple base stations.

Additionally, known methods for subscriber station 502 provide many telephone conversations simultaneously on channels 552, 554 traffic. These methods include, for example, temporal multiplexing of different data streams so that the channel can carry multiple threads. Using this method, in the present application solves the problem of simultaneous reception of the subscriber station sets the broadcast programs according to the individual channel 556.

Additional information

Physical and logical channels in high-speed broadband services are discussed in more detail in the following references, which are incorporated in the present description in its entirety: (1) Standard physical layer (CDMA 2000), known as IS_2000.2, (2) an application for U.S. patent No. 09/933978, filed August 20, 2001 and entitled "Method and apparatus for signaling in broadcast communication system". The use of common and dedicated channels for broadcasting information disclosed in the link below, Kotor is included in the present description in its entirety: application for U.S. patent No. 60/279970, filed March 28, 2001 and entitled "Method and apparatus for group calls using dedicated and common channels in wireless networks".

Overview-Switch between public/Private broadcast channels

In Fig. 6 shows aspects of the operation of the system 100, where in response to a given change in one or more States perform switching type communication channel used to provide the broadcast program content to one or more subscriber stations. However, illustration of the sequence 600 in connection with the system 100 is illustrative, because these principles can also be applied to systems with different structures. This sequence is described in the context of one illustrative base station ("this" base station).

At step 602, the base station provides a broadcast content to its subscriber stations using common and/or individual channels. The broadcast content includes one or more broadcast programs. Each subscriber station receives one broadcast program or multiple broadcast programs simultaneously. From the base station, each program is transmitted via a common channel or a set of individual channels, which number corresponds to the number of the requesting subscriber the stations. As described below, the base station can switch between the common/individual channels for delivery of each broadcast program depending on the availability of network resources and other factors, described below.

At step 604 determines whether the change in the "States" (as defined below) for the specific broadcast program, which involves switching from the General to the individual broadcast channel or Vice versa. In the absence of changes in stage 608 continue to provide the broadcast content the same way, and returned to the specified analysis at step 604 later. However, in the case of changes in the "state" at step 606 begin to use another type of broadcast channel, for example, begin to use a common channel, if you previously used an individual channel, and Vice versa.

If we consider the step 604 in more detail, this stage covers many different situations. In one example of step 604 from the base station changes the number of subscriber stations, requesting a specific broadcast program from this base station, changing the power level used by the base station, or other changes the state of the network. For example, if the base station provides specific broadcast programs is the individual channels, at step 606 can be a positive decision, if the number of subscriber stations requesting service broadcasting has exceeded the specified threshold. Therefore, switching to the use of a common communication channel (step 606) can save power. In Fig. 16 (base station) and 18 (subscriber station) this situation is shown in more detail as described below. The opposite situation can also occur, for example, if at step 604 it is established that the number of subscriber stations, requesting a specific broadcast program, fell below the threshold that requires the use of individual broadcast channels at step 606. In Fig. 16 (base station) and 17 (subscriber station) this situation is shown in more detail as described below.

In another example of step 604, driven communication with the subscriber station, the specified subscriber station is faced with changing the broadcast channel when moving from the coverage area of one base station in the service area of another base station. In one example of a subscriber station receiving a broadcast program on a shared channel, moves to another base station, which uses to deliver broadcast program individual channels. This is the case of a subscriber station is switched (step 606) with the total on an individual broadcast channel. This situation is discussed in more detail in connection with Fig. 8A-8D (base station) and Fig. 10-11 (subscriber stations). Similarly, a subscriber station receiving a broadcast program on an individual channel can be moved to a different base station, which uses to deliver this broadcast program is a General channel. In this case, the subscriber station is switched (step 606) with the individual on a broadcast channel. This situation is discussed in more detail in connection with Fig. 9A-9D (base station) and Fig. 12-13 (subscriber stations).

In one example of step 606 change the type of the channel may be a result of taking (or initiation) of a subscriber station of the call point to point while receiving subscriber station broadcast program on a shared channel. As shown below, this requires changes in the delivery of broadcast content on an individual channel (step 608) during a call, point-to-point. This situation is discussed in more detail below in connection with Fig. 14 (subscriber station), and Fig. 15 (base station).

Changing the type of broadcast channel due to a shift of the subscriber station from one base station to another

Introduction

As mentioned above, various state changes can cause switched the e subscriber stations with a total individual broadcast channel, or Vice versa (Fig. 6, step 606). One of these conditions occurs when the subscriber station moves from the base station, which uses one type of broadcast channel to the base station using another type.

Fig. 7A illustrates the situation when the subscriber station 703 moves from the service area of the base station 702 to the base station 704. With the base station, the subscriber station 702 703 receives a specific broadcast program on a shared channel 750. However, with the new station, the subscriber station 704 703 starts receiving a broadcast program on an individual broadcast channel 751. The need to use the base station 704 individual channel can be due to various reasons. For example, the base station 704 may be programmed to deliver broadcast content on a shared channel. In another example, when a small number of subscriber stations requesting this broadcast program, the base station 704 may save power by using a broadcast transmission with relatively low power, and not broadcast on a common channel.

Fig. 7B illustrates a situation in which a subscriber station 707 moves between service areas of base stations 706, 708. With the base station 706 subscriber stations is 707 receives a specific broadcast program on an individual channel 752. However, with the new station 708 subscriber-station 707 starts receiving a broadcast program on a shared broadcast channel 753. The need for the use with the base station 708 common channel instead continue using the individual channel, may be due to various reasons. For example, the base station 708 may be programmed to deliver broadcast content according to individual channels. In another example, when a large number of subscriber stations requesting this broadcast program, the base station 708 can save power by using a single shared broadcast channel, and not many individual broadcast channels.

Operations in the base station, transfer total-individual

1st example

In Fig. 8A-8B shows how the base station delivers a broadcast program of a subscriber station, changing from the first base station (where the broadcast program is transmitted over a common broadcast channel) to a second base station (where this program is available for individual channels). Without any restrictions, Fig. 8A-8B provide an illustration in the context of base stations 702, 704 in Fig. 7A-7B and different channels according to Fig. 5B-5D. As mentioned above, the base station 702 initially transmits the subscriber with whom Anzhi 703 broadcast program on a shared communication channel 750. The base station 704 has chosen to deliver this program, the use of individual broadcast channels.

Briefly, in this embodiment, the base station 702 would not assist in the switching of service of a subscriber station 703. On the contrary, the base station 702 allows the subscriber station to establish service with the base station 704 again.

In Fig. 8A shows the operation of the first base station 702. Namely, when the subscriber station 703 leaves the area 702, the communication base station 702 with the subscriber station just stopped (step 800). This is because the base station 702 presumably broadcasts 750 on a common channel to several different subscriber stations and maintenance of subscriber stations 703 of the service area changes nothing.

In Fig. 8B shows the operation 802, the second base station 704. At step 804, the base station 704 receives the request the base station to continue receiving the same broadcast content. This query take, for example, on channel 522 access (Fig. 5C). In one case, the base station 704 may choose to use individual channels to deliver this particular broadcast program, because the base station 704 so programmed due to the lack of interest of the users that do not justify the AET using a shared channel, or for any other reason. In another case, the base station 704 may never pass this broadcast content. In any of these cases, the use of a broadcast transmission on a shared channel is not suitable. Therefore, at step 806, the base station 704 responds to the request 804 subscriber station destination subscriber station 703 individual broadcast channel 751. The assignment is performed, for example, through the channel 506 paging (Fig. 5B) and determine the individual channel 751 (556 in Fig. 5C). Then, at step 808, the base station 704 starts the transmission of broadcast content to a designated individual channel 751 (556 in Fig. 5D) in the call point to point with the subscriber station 703.

Operations in the base station, transfer total-individual

2nd example

In Fig. 8C-8D shows the sequence 810, 818, alternative sequences, 800, 802 in Fig. 8A-8B. In this embodiment, the base station is involved in the switching of service of a subscriber station 703 to the base station 704. As mentioned above, the base station 702 initially transmits a subscriber station 703 broadcast program on a shared communication channel 750. The base station 704 has chosen to deliver this program, the use of individual broadcast channels, or it may not transfer the substance of this broadcast content.

In Fig. 8C shows the operation in the first base station 702. At step 712, the base station 702 receives a message about the value of the pilot signal indicating that the subscriber station 703 receives a stronger signal from the base station 704. This message about the strength of the pilot signal is transmitted to the subscriber station 503, for example, on channel 522 522 access (Fig. 5C), and may be part of a registration message or may be a specialized message about the measurement of the pilot signal. At step 814, the base station 702 determines that the base station 704 sends this broadcast program on an individual, point-to-point channels, and not on the General channel. This is done through communication (not shown) between the base stations on the cable line. In the CDMA-2000, for example, such communication may occur via network interfaces between base stations, such as A3/A7. After step 814, the base station 702 negotiates with the base station 704 individual channel 751 traffic, so that the base station 704 may continue providing broadcast content on this channel. As indicated above, communication between base stations can occur through network interfaces. The base station 702 assigns subscriber-station 703 agreed channel 751, sending a message through the arrangement the channel subscriber stations 703 channel 506 paging (Fig. 5C). After step 816 procedure 810 switching service is terminated.

In Fig. 8D shows the operation 818 second base station 704. At step 820, the base station 704 receives the notification from the base station 702 about the upcoming switch service subscriber stations 703 and the proposed assigned channel 751. This information is transmitted to the second base station 704 of the first base station 702 at step 816 (Fig. 8C). In response, the base station 704 gives permission (step 822), the first base station, and starts the transmission (step 824) this broadcast program to the subscriber station 703, using the connection point-to-point, dedicated individual channel 751, also shown as a channel 556 on Fig.5D. After step 824 procedure 818 switching service is terminated.

Operations in the base station, the individual transition.

1st example

In Fig. 9A-9B shows how the base station delivers a specific broadcast program subscriber stations, changing from the first base station (transmitting this program on individual channels) to the second base station (transmitting this program on a shared channel). Without any restrictions, Fig. 9A-9B provide an illustration in the context of base stations 702, 704 in Fig. 7A-7B and different channels according to Fig. 5B-5D. As mentioned above, the base station 706 initially re the AET subscriber station 706 this broadcast program according to the individual communication channel 752. The base station 708 already transmits a broadcast program using a common communication channel 753.

Briefly, in this embodiment, the first base station 706 determines that the second base station 708 uses a shared broadcast channel for the transfer of the program, which currently receives a subscriber station 707, therefore, the base station 706 simply disables subscriber station 707 without any switching service.

In Fig. 9A shows the operation 900 base station 706. Namely, at step 902, the base station 706 first receives a message about the value of the pilot signal from the subscriber-station 707. As is known in the art, the subscriber station occasionally convey a message about the value of the pilot signal indicating the relative magnitudes of the pilot signals received from nearby base stations, to facilitate base stations in soft switching service. At step 904, the base station 706 determines that the subscriber station is transferred to the base station 708, and also determines that the station 708 uses a shared broadcast channel 753 for delivery of this program. As indicated above, communication between base stations can occur through network interfaces or other wired connection between the base stations.

Then the station 706 per the network (step 906) instruction subscriber station 707 to release individual broadcast channel 752 (channel 556, Fig. 5D), and then the station 706 stops the data transmission (step 908) broadcast content channel 752. The statement about the release sent on a separate channel signaling (556b, Fig. 5D). This completes the sequence 900.

In Fig. 9B shows the operation 910 to the second base station 708 in connection with Fig. 9A. As mentioned above, the sequence 900, 910 are performed without any switching service, as the first station 706 simply disables subscriber station and stops transmission on channel 752. Accordingly, at step 910, the second base station 708 registers the subscriber-station 707 when receiving the registration message. The sequence 910 does not contain any special operations related to the delivery of broadcast, because the base station 708 already provides broadcast 753 on the General channel. However, with regard to operations in the subscriber station (described below), after registration 910 subscriber station can monitor the appropriate public broadcast channel 753 to begin receiving the same broadcast program that was taken from the station 706.

Operations in the base station, the individual transition.

2nd example

In Fig. 9C-9D shows the sequence 912, 918 alternative sequences 900, 910 in Fig. 9A-9B. As okazyvalsya, the base station 706 source transmits a broadcast program in the subscriber-station 707 individual broadcast channel 752. The base station 708 has chosen to use the General broadcast channel 753 for delivery of this program; that may be for administrative reasons, for reasons of efficiency, the state of the network, hardware and/or software limitations, or for any other reason. Briefly, in this embodiment, the base station 706 facilitates subscriber station 707 in switching service to the base station 708, and then the base station 706 proceeds to disconnect the subscriber station 707.

In Fig. 9C shows the operation 912 in the base station 706. Namely, at step 914, the base station first receives a message about the value of the pilot signal from the subscriber-station 707. At step 914, the base station 706 identifies the base station 708 to switch service and performs switching service traffic to the base station 708. The procedures for carrying out switching service traffic in the call point to point are well known in the art. At the specified switching service traffic, all lines 552, 554 of traffic (e.g. voice call) is completely switched to the receiving base station 708. However, only some aspects of the Shire is colesterolo connection 556 transferred from the base station 706 to 708. Namely, the alarm goes 556b, but not the broadcast content 556a; that is, because the base station 708 (as mentioned above) decided not to send a broadcast program according to individual channels. Therefore, the base station 706 stops transmission on the individual channel 556a (step 916). In particular, the base station 706 terminates the transmission by individual channel 752, previously used for transmitting a broadcast program of a subscriber station 707. This sequence ends 912.

In Fig. 9D shows the operation 918 second base station 708 in connection with Fig. 9C. At step 920, the base station 708 involved in switching service traffic of the subscriber station 707 from the base station 706. Namely, the base station 708 assumes all lines 552/554 traffic and channel 556b alarm. Then, at step 922, the base station 708 sends the instruction to complete the remaining part of the connection 752, i.e. the channel 556b. The sequence 918 does not contain any special operations related to the delivery of broadcast, because the base station provides a broadcast transmission 753 relevant content on a shared channel. However, with regard to operations in the subscriber station (described below), the subscriber station may at any time actorsleeping appropriate public broadcast channel 753 to continue receiving the same broadcast program, that was taken from the station 706.

Operations in the subscriber station, the transition of the common individual.

1st example

In Fig. 10 shows the operation 1000 performed by a subscriber station in the transition from the delivery of a broadcast program on a shared channel of one base station, to the individual delivery of a broadcast program to another base station. Without any restrictions, Fig. 10 gives an illustration in the context of base stations 702, 704 in Fig. 7A and different channels according to Fig. 5B-5D. As mentioned above, the subscriber station 703 initially receives a broadcast program on a shared communication channel 750. With regard to base station 704, she has chosen to deliver this program, the use of individual broadcast channels or she may not transfer this broadcasting program.

As mentioned above, in this embodiment, the first base station 702 would not assist in the switching of service of a subscriber station 703. On the contrary, the base station 702 allows the subscriber station to establish a service broadcast from the base station 704 again. In this embodiment, the operation in the subscriber station 703, described by the sequence 1000 of Fig. 10, correspond to the operations in the base station shown in Fig. 8A-8B.

The stage is 1002 subscriber-station 703 independently evaluates the pilot signals (not shown) from the base stations 702, 704. Having determined that the pilot signal from the base station 704 is stronger than from the station 702, a subscriber station 703 performs switching service in a passive state to the base station 704 (step 1004). This implies the termination of reception of broadcast 750 on a shared channel and check the base station 704. As mentioned above, registration is performed on the access channel (522, Fig. 5B) and is used to specify a new base station 704 to the presence of the subscriber station 703.

At step 1006 the subscriber station 703 sends a request to the base station 704 to receive a broadcast program that the subscriber station is received from the previous base station 702. Then the subscriber station 703 accepts the assignment of individual channel 751 (556, Fig. 5D) containing the desired broadcast program (step 1008). At step 1010 the subscriber station 703 starts reception of the desired broadcast program on an individual channel 751/556. This sequence 1000 is completed.

Operations in the subscriber station, the transition of the common individual.

2nd example

In Fig. 11 shows another example operations 1100 performed by the subscriber station during the transition from the delivery of a broadcast program on a shared channel of one base station, to the individual delivery of a broadcast program other basic it is. Without any restrictions, Fig. 11 provides an illustration in the context of base stations 702, 704 in Fig. 7A and different channels according to Fig. 5B-5D. As mentioned above, the subscriber station 703 initially receives a broadcast program on a shared communication channel 750. With regard to base station 704, she has chosen to deliver this program, the use of individual broadcast channels or she may not transfer this broadcasting program.

Briefly, in this embodiment, the first base station 702 assists in switching the service of a subscriber station 703 to the base station 704. In this embodiment, the operation in the subscriber station 703, described by the sequence 1100 of Fig. 11, correspond to the operations in the base station shown in Fig. 8C-8D.

At step 1102 the subscriber station 703 independently evaluates the pilot signals (not shown) from the base stations 702, 704. Having determined that the pilot signal from the base station 704 is stronger than from the station 702, a subscriber station 703 sends a message about the value of the pilot signal in the current base station 702 (step 1104). In response, the base station 702 starts switching of service of a subscriber station 703, assigning individual broadcast channel (556, Fig. 5C) of the base station 704, which the subscriber station receives at step 106. This assignment contains a statement of the subscriber station to begin reception of this broadcast program on the new individual broadcast channel 751 instead of the common channel 750. Accordingly, the subscriber station 703 resumes receiving broadcast on the new channel 751 at step 1108. This completes the sequence 1100.

Operations in the subscriber station, the individual transition.

1st example

In Fig. 12 shows the operation 1200 performed by a subscriber station at the transition from individual delivery of one base station to the delivery of a broadcast program on a shared channel of another base station. Without any restrictions Fig. 12 provides an illustration in the context of base stations 706, 708 in Fig. 7B and different channels according to Fig. 5B-5D. As mentioned above, the subscriber-station 707 initially accepts such a broadcast program according to the individual communication channel 752. As for the base station 708, it transmits a broadcast program on a shared broadcast channel 753. Briefly, in this embodiment, the first base station 706 would not assist in the switching of service of a subscriber station 707 to the base station 708. In this embodiment, the operation in the subscriber station 707, described by a sequence of 1200 F. the, 12 correspond to the operations in the base station shown in Fig. 9A-9B.

At step 1202 subscriber-station 707 independently evaluates the pilot signals (not shown) from the base station 706, 708. Having determined that the pilot signal from the base station 708 stronger than from the station 706, a subscriber station 707 sends a message about the value of the pilot signal in the current base station 706 (step 1202). In response, the base station 706 disables subscriber station 707, sending a statement of exemption, which the subscriber station receives at step 1204. Accordingly, the subscriber station goes out of state TRAFFIC and enters a WAITING state (Fig. 5A), which occurs at step 1206. This completes the call 752 point-to-point (556, Fig. 5D) contains the broadcast program.

Due to disconnect 752 and determining subscriber station (step 1202) that the pilot signal from the base station 708 becomes stronger, the subscriber station in step 1208 performs switching service in passive mode. This is done by registering the base station 708, indicating that the base station on the presence of the subscriber station 707. At step 1210 subscriber-station 707 monitors service channel 505 signaling (Fig. 5B) of a base station 708. In particular, the subscriber-station 707 keeps repeating the message alarm setting is in broadcast (BPSM), which contains a list of broadcast programs available from the base station 708 and their various channels. The subscriber station monitors this message when trying to determine the channel containing the desired broadcast program. In the present example, this information indicates that the channel containing the desired broadcast program is General and also specifies the frequency channel or other identification. Accordingly, at step 1212 subscriber-station 707 tunes its transceiver to start monitoring a common channel 753 (channel 508, Fig. 5V).

Operations in the subscriber station, the individual transition.

2nd example

In Fig. 13 shows another example operations 1300 performed by the subscriber station at the transition from individual delivery of broadcast programs one base station, to the delivery of a broadcast program on a shared channel of another base station. Without any restrictions. Fig. 13 provides an illustration in the context of base stations 706, 708 in Fig. 7B and different channels according to Fig. 5B-5D. As mentioned above, the subscriber-station 707 initially receives a broadcast program according to the individual communication channel 752. As for the base station 708, she has chosen to deliver this program using a common broadcast channel 753 unlike the previous sequence 1200 (Fig. 12), in this embodiment, the first base station 706 does not contribute to the switching of service of a subscriber-station 707 to the base station 708. In this embodiment, the operation in the subscriber station 707, described sequence 1300 in Fig. 13, correspond to the operations in the base station shown in Fig. 9C-9D.

At step 1302 subscriber-station 707 sends a message about the value of the pilot signal in the current base station 706. Having determined that the pilot signal from the base station 708 stronger than from the station 706 (in accordance with the message), the base station 706 identifies the base station 708 to switch service, initiating execution of the subscriber station 707 switching service traffic to the base station 708 (step 1306). As mentioned above, when switching the traffic servicing all lines of traffic (e.g. voice call 552/554) are transferred from the base station 706 to the base station 708. Switched service only part of the broadcast connection 556 pertaining to the alarm system (556b). At step 1306 subscriber-station 707 receives from the base station 708 instruction channel release 556b.

As a result of step 1308, the subscriber-station 707 stops data reception alarm 556b, fully completing the previous connection 752 point-to-point. Accordingly, the subscriber station 707 entrance is t to the WAITING state at step 1310. While in the PENDING state, the subscriber-station 707 viewing service alarms (for example, channel 505 in Fig. 5B), looking for the desired broadcast program (step 1312). More precisely, at step 1312 subscriber-station 707 monitors the message alarm parameters broadcast, as already explained above. Ultimately, the subscriber-station 707 receives information about the desired broadcast program, and this information indicates that the program is on a shared channel, and indicates the frequency channel or other identification. Accordingly, at step 1314 subscriber-station 707 tunes its transceiver to start monitoring a common channel 753, (508 in Fig. 5B), taking account of the desired broadcast program.

Changing the type of broadcast channel due to the call origination point to point during the broadcast on a common channel

Introduction

Unlike the above description, which details the operations involved in switching between the common/individual channels due to the transition of the subscriber station from one base station to another, the following description refers to the switching of channels General-individual and then the individual-society, which is a consequence of the acceptance or initiation abonentskaya call point-to-point, not related to the broadcast.

The work of the subscriber stations

In Fig. 14 shows the operation 1400 performed by a subscriber station when the call is initiated point-to-point (e.g., voice call), while the subscriber station receives a broadcast program on a shared channel. Without any limitation, the sequence described in connection with the channels in Fig. 5A-5D.

As described in more detail below, for various reasons, this situation requires changing the type of the channel with the common individual. Able 566 TRAFFIC delivery of broadcast content to be performed simultaneously with the call 552/554 point-to-point, with the need to be on a unidirectional point-to-point channel 556, and not as a General channel 508. This is mainly because procedures alarm and control necessary for the operation of the subscriber station, are significantly different in the States WAITING time and TRAFFIC, and due to the fact that the subscriber station at any given time can only be in one of these States. In addition, many subscriber stations can not communicate on multiple physical frequencies simultaneously due to the structure of their hardware. Thus, because the user requested call point-to-point uses individual is anal 552/554 traffic exchange of any broadcast information at this time need also occurs on an individual channel 556.

The sequence 1400 begins when the subscriber station is already receives broadcast content from a broadcast channel, such as 508, Fig. 5B (step 1402). At step 1404 is the initiation of a call point-to-point, or when the calling user of the subscriber station, or when performing a wireless network external call from another subscriber of the wireless network, the user's PSTN or Internet user subscriber stations. Thus, the call can be either incoming or outgoing with respect to the subscriber station. In the case of an outgoing call step 1404 includes receiving subscriber station user input containing instructions from the keyboard or other instructions to initiate a call; in the case of an incoming call, step 1404 does not contain any action by the subscriber station, and this step is included merely for illustration and completeness.

At step 1406 the subscriber station sends a message origination (outgoing call) or a response message (for incoming call). Message origination/response is transmitted over the channel 522 access (Fig. 5C) and can use the normal formatting, in accordance with the CDMA-2000 or any other wireless Protocol is I. However, the message origination/response also includes additional information indicating that the subscriber station is already keeping track of the broadcast program on a shared channel, and the identification of specific broadcast content; this helps the base station to maintain a broadcast connection.

Then, at step 1408, the subscriber station receives channel assignment, including (1) the appointment of an individual broadcast channel 556 (Fig. 5D) from the base station to continue broadcasting the connection, and (2) the purpose of the channel 552/554 traffic (Fig. 5D) for the new call point-to-point. After step 1408 the subscriber station tunes its transceiver to go into a state of TRAFFIC to perform two calls point-to-point (step 1410), and one is on channel 552/554 traffic, and the other is sent to a broadcast channel 556.

At step 1412 not broadcast the call point to point ends, or when you end the call by a user of the subscriber station, or at the completion of the call to another party, or when the connection is lost. At step 1414, the statement of exemption for non-broadcast call is sent to the subscriber station (if the call has completed a subscriber station) or received subscriber station (if the call is completed the network or another student of the party). Statement of release is sent/received on a selected channel signaling, such as 552b (Fig. 5D). Then, at step 1416, the subscriber station receives a statement of liberation for the individual broadcast connection 556, which is sent to the base station for completion of individual connection and resume streaming through cheaper shared connection. At step 1418 the subscriber station goes out of state TRAFFIC and enters a WAITING state in response to manual release of step 1416. At step 1420 the subscriber station resumes reception of the desired broadcast program, setting his transceiver to monitor the common channel 508, initially used at step 1402.

Work base station

In Fig. 15 shows the operation 1500 performed by the base station when the call is initiated point-to-point (e.g., voice call) while the subscriber station receives a broadcast program on a shared channel. The sequence 1500 performed by a base station that corresponds to the sequence 1400 (Fig. 14)performed by the subscriber station. Without any limitation, the sequence described in connection with the channels in Fig. 5B-5D.

The sequence 1500 begins when the subscriber station is already taking Shirokova the positive content shared channel (such as 508, Fig. 5B). At step 1502 the base station detects that the call was initiated point-to-point or user of a subscriber station that sent the message origination to initiate a call, or network, sending an outgoing call from another source. At step 1504, the base station receives the notification that the subscriber station monitors the shared broadcast channel, and what this channel. The notification at step 1404 receives the message origination or response to the subscriber station through the channel 522 (Fig. 5C) access.

At step 1506, the base station analyzes the message origination/response from the subscriber station and establishes that there is a need to continue to provide subscriber stations broadcast programs. Accordingly, at step 1508, the base station transmits the same message to the destination channel subscriber stations to identify the channel 552/554 (Fig. 5D) traffic for the new call point-to-point, and another message channel number is assigned to identify individual channel 556 (Fig. 5D) for broadcast content. At step 1510, the base station starts transmission of the desired broadcast program on an individual channel 556, and also does not broadcast connection point-to-point channel 552/554 traffic.

At the completion of the non-broadcast of the call point to point (step 1512), b the gas station at step 1514 or sends a statement of exemption for non-broadcast connection (if the call is completed, the network or the second party), either accept the statement of release (if the call is completed, the subscriber station). Also at step 1514, the base station performs all the necessary actions to end the call. Then the base station transmits the instruction of liberation for the individual broadcast channel 556 (step 1516) and then stops the transmission of broadcast content on this channel (step 1518). From this point, the subscriber station may monitor the broadcast base station of the desired program on the corresponding General channel 508. This sequence 1500 ends.

Changing the type of broadcast channel in the management of network resources

Introduction

Unlike the above description, which details the operations involved in switching between the common/individual channels due to the call origination point to point, the following description refers to the switching of channels General-individual or individual-society, resulting in changing the "network status". As an example, the network status changes may include a change in the number of subscribers broadcast served by this base station, the total power transmission for subscribers served by this base station, or other network resources or the situation of the deposits, what makes it advantageous for the base station to switch between the General and the individual of the broadcast program.

Work base station

In Fig. 16 shows the operation 1600 performed by the base station ("this" base station) when switching between common and individual broadcast channel (or Vice versa) because of a change in network status, or, in other words, changes in the consumption of network resources. Although it can be used different ways, illustrative sequence 1600 is performed for one broadcast program ("this" program), and the sequence 1600 may be repeated in series or parallel as needed to assess the consumption of network resources for other broadcast programs.

At step 1602, the base station checks the state of the network. Although the state of the network can be defined in many different ways, depending on the method of application of hardware and software, some illustrative network status includes the total output power of the transmission, the number of subscriber stations receiving individual broadcast of this program, the availability of Walsh codes to the base station, etc. with regard to Walsh codes, each call is assigned in the system, uses a single sludge is more physical channels, and send on each channel is carried out using one or more Walsh codes. Walsh codes are used to ensure that the various transfer will be accepted in the mobile station separately and will not interfere with each other. The number of Walsh codes available in each sector is thus fixed, and therefore, their availability changes dynamically as the establishment or disconnection of calls.

At step 1604, this base station determines whether there was a change in the network condition, such as exceeding a specified threshold percentage, limit, level or other measure. If the network status no change or changes were minor, the base station waits (step 1606) and then reevaluates the status of the network at step 1602. Step 1602 may use hysteresis or another way to avoid inefficient leaps between individual/General broadcast.

If the network status has changed significantly, step 1604 proceeds to steps 1608-1614 (if the current state of the network gives the advantage of using individual channels instead of shared channels for delivery of this program), or to the stages 1616-1624 (if the current state of the network gives the advantage of using shared channels instead of individual channels for delivery of this program).

On the stage 1608 base station notifies its subscriber stations about the upcoming change in the use of individual broadcast channels. For example, this message can be delivered to the subscriber stations using channel 506 paging (Fig. 5C), which is monitored subscriber stations during the broadcast on a common channel. In response, the subscriber station report (not shown)whether they wish to continue the reception of the current broadcast. The base station may accept these answers, for example, on channel 522 (Fig. 5C) access. Although on stage 1608 each subscriber station sends a single message, alternatively, these messages may be combined into one "group paging message. Some of the group pager messages disclosed in application for U.S. patent No. 10/192428 filed July 9, 2002 and entitled "Method and system for multicast service initiation in a communication system". The above source is included in the present description in its entirety by reference.

Then, the base station analyzes (1610) responses received from subscriber stations, and assigns (1612) individual broadcast channels 556 (Fig. 5D) of each subscriber station which has indicated an interest in continuing the reception of this broadcast program. Then, at step 1614, resumes broadcasting, leading it on individual channels 556, separate for each subscriber station, receiving this broadcast about the program. After step 1614, the procedure returns to step 1604.

Unlike sequence 1608-1614, step 1616 begins the sequence 1616-1624, performs switching from private to General broadcast channels. At step 1616, the base station considers the first ("current") of the subscriber station from among the host broadcast program on an individual channel from the base station. For this subscriber stations, the base station sends a notification about the upcoming release of individual channel 556 and specifies subscriber stations that broadcast continues for a certain General broadcast channel 508. The base station may send messages step 1618, for example, through the corresponding channel, 556b alarm associated with broadcast content 556a (Fig. 5D). Alternatively, step 1618 can be done using the group paging message, as mentioned above. At step 1620, the base station releases the individual broadcast channel 556 (Fig. 5D), used in a current subscriber station, sending a command to release the channel 556b.

Then, at step 1622, the base station determines if there is more subscriber stations for their information and channel release, and if so, returns to step 1618. If step 1618 was the imp is replaced with group paging message, then step 1622 returns to step 1620 instead of step 1618. If subscriber stations are no more, the base station starts transmission of this program on a specific shared channel in step 1624. The base station also updates the contents of the official alarm 505 (Fig. 5B), so that the message alarm parameters broadcast indicates that the content available at a common channel. If necessary, step 1624 can be performed earlier (e.g., before step 1618) to avoid any service interruptions. Step 1624 returns to step 1604.

The work of the subscriber stations switch from the General to the individual channels

In Fig. 17 shows the operation 1700 performed by a subscriber station ("this" subscriber station) when switching from the General to the individual broadcast channel in accordance with the execution of the base station stages 1608-1614 (Fig. 16). When the sequence 1700, the subscriber station receives a broadcast program on an individual broadcast channel.

At step 1702 this subscriber station receives notice of a base station that individual broadcast ends, and resumes the common channel. As mentioned above, this notification is made to a channel to which the channel 506 paging (Fig. 5C), which the subscriber station monitors the States of ANTICIPATION and ACCESS. At step 1704 the subscriber station may request of the user or to learn from the default settings, whether to continue receiving broadcast on a common channel. Accordingly, at step 1704, the subscriber station sends a message, for example, on channel 522 access (Fig. 5C), indicating interest (or lack thereof) of the subscriber stations in the continuation of receiving a broadcast program on a shared channel.

If at step 1704 the subscriber station selects the continue receiving a broadcast, then at step 1706. When the subscriber station receives a channel assignment from the base station that the base station sends at step 1612 (Fig. 16). Then the subscriber station tunes its transceiver to the designated channel (508) in step 1708, thereby entering the state of TRAFFIC in relation to this channel and thereby continuing the reception of broadcast content in the call point to point. This completes the sequence of 1700.

The work of the subscriber stations switch from individual to shared channels

In Fig. 18 shows the operation 1800 performed by a subscriber station ("this" subscriber station) when switching from private to General broadcast channel in accordance with the imp is using the base station stages 1616-1624 (Fig. 16).

When the sequence of 1800, the subscriber station receives a broadcast program on an individual channel, such as 556 (Fig. 5D). At step 1802 this subscriber station receives notice from the base station about the upcoming release of this individual broadcast channel. The subscriber station also takes notice of a base station that broadcast continues on some General broadcast channel 508. At step 1804 the subscriber station receives an instruction of the base station to release individual broadcast channel 556. The subscriber station may receive messages steps 1802, 1804, for example, via a dedicated channel 556b (Fig. 5D).

In response to a statement release on the stage 1804, leaving the status of the TRAFFIC and enters a WAITING state (step 1806). At this point, the receiving subscriber station specific broadcast program on an individual channel 556 stops. To continue receiving subscriber station in step 1808 monitors service channel 505 signaling (Fig. 5B), and in particular the message alarm parameters broadcast, to determine which General broadcast channel contains the desired broadcast program. In this case, the base station updates the message (step 1624,Fig. 16) to indicate that the broadcast content available at a General broadcast channel 508. Accordingly, at step 1810 the subscriber station tunes its transceiver to track certain General broadcast channel 508, and thereby starts the reception of the desired broadcast content. This completes the sequence of 1800.

Other embodiments of the

Specialists in the art will recognize that information and signals may be represented using any of a variety of technologies. For example, data, instructions, commands, information, signals, bits, symbols, and elementary signals, which can be referred to in the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

Specialists in the art will also recognize that the various illustrative logical blocks, modules, circuits, and steps of the algorithms described in connection with options for carrying out the invention disclosed in the present description may be implemented as hardware, software or a combination thereof. With the purpose of clear illustration of this interchangeability of hardware and software once the ranks illustrative components, blocks, modules, circuits, and steps have been described above in General terms, reflecting their functionality. Whether this functionality is implemented as hardware or software depends upon the particular application and design limitations imposed on the entire system. Specialists in the art can implement the described functionality in varying ways for each particular application, but such design decisions cannot be regarded as a deviation from the scope of the present invention.

The various illustrative logical blocks, modules, and circuits described in connection with options for carrying out the invention disclosed in the present description may be implemented or performed using the General-purpose processor, a digital signal processor (DSP), a custom integrated circuit (ASIC), programmable gate array (FPGA) or other programmable logic device, discrete logic elements or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions set forth in this description. General-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontrol the er or a state machine. The processor may also be implemented as a combination of computing devices, for example, the combination of a DSP and a microprocessor, a variety of microprocessors, one or more microprocessors in conjunction with a DSP core, or any similar configuration.

The steps of a method or algorithm described in connection with options for carrying out the invention disclosed in the present description may be implemented directly in hardware, in a software module executed by a processor, or combinations thereof. A software module may reside in RAM, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or on any media known in the art. Illustrative storage medium associated with the processor so that the processor can read information from the storage medium and to record information on the information carrier. Alternatively, the storage medium may be integrated into the processor. The processor and the storage medium may be located in the ASIC.

The preceding description of the embodiments of the invention are presented in order to a person skilled in the art had the opportunity to make or use the present invention. To a person skilled in the art obvious RA the personal data modification of the embodiments of the invention, and the General principles defined in the present description, can be used in other variants of implementation without going beyond the spirit or scope of the present invention. Thus, the present invention should not be limited options for implementation set forth in the present description, but should correspond to the greatest extent compatible with the principles and new distinguishing features disclosed in the present description.

The word "illustrative" is used in the present description to mean "serving as an example, the illustration". Any variant of implementation set forth in the present description as "illustrative", you should not need to be considered as preferred or predominant over the other option implementation.

1. The method of operation of a base station in a wireless communication network, executing the given base station and containing the following:

providing broadcast content includes at least part of one broadcast program, one or more wireless subscriber stations according to one or more communication channels, each of which belongs to one of the following types: a shared channel for use by multiple subscriber stations, the individual channel, the separation of the config to use a separate subscriber station;

changing, in response to changing network conditions relating to the first type, the type of communication channel used to deliver broadcast content to one or more subscriber stations by performing the following steps:

notify referred to one or more wireless subscriber stations on the provision of broadcast content from a common channel to an individual channel;

analyze the responses of said one or more wireless subscriber stations to determine whether the interest of wireless subscriber stations to continue receiving the broadcast content;

designate an individual channel for each wireless subscriber stations, which announced the partnership to continue receiving the broadcast content; and

resume the transmission of broadcast content in each wireless subscriber station for each assigned individual channel;

changing, in response to a state change in the network related to the second type, the type of communication channel used to deliver broadcast content to one or more subscriber stations by performing the following steps:

informing the first subscriber stations who mentioned one or more subscriber stations intention base station to release the individual channel, used to provide the broadcast content, and to grant referred to the broadcast content on a shared channel;

release mentioned individual channel of the first subscriber station;

determine whether another subscriber station of the above-mentioned one or more subscriber stations to progress through the stages of awareness and liberation;

in the absence of subscriber stations to progress through the stages of awareness and liberation transmit broadcast content on a shared channel referred to one or more subscriber stations.

2. A base station for use in a wireless communication network containing

transceiver and

a digital data processor, coupled to the transceiver that is programmed to perform operations delivery of broadcast content, containing

providing broadcast content includes at least part of one broadcast program, one or more wireless subscriber stations according to one or more communication channels, each of which belongs to one of the following types: a shared channel for use by multiple subscriber stations, an individual channel dedicated for use by the Department of the Noah subscriber station;

changing, in response to changing network conditions relating to the first type, the type of communication channel used to deliver broadcast content to one or more subscriber stations by performing the following steps:

notify referred to one or more wireless subscriber stations on the provision of broadcast content from a common channel to an individual channel;

analyze the responses of said one or more wireless subscriber stations to determine whether the interest of wireless subscriber stations to continue receiving the broadcast content;

designate an individual channel for each wireless subscriber stations, which announced the partnership to continue receiving the broadcast content; and

resume the transmission of broadcast content in each wireless subscriber station for each assigned individual channel;

changing, in response to a state change in the network related to the second type, the type of communication channel used to deliver broadcast content to one or more subscriber stations by performing the following steps:

informing the first subscriber station is Yu mentioned one or more subscriber stations intention base station to release the individual channel, used to provide the broadcast content, and to grant referred to the broadcast content on a shared channel;

release mentioned individual channel of the first subscriber station;

determine whether another subscriber station of the above-mentioned one or more subscriber stations to progress through the stages of awareness and liberation;

in the absence of subscriber stations to progress through the stages of awareness and liberation transmit broadcast content on a shared channel referred to one or more subscriber stations.

3. A base station for use in a wireless communication network containing

the first means of transmit-receive;

the second tool to perform operations delivery of broadcast content, containing

providing broadcast content includes at least part of one broadcast program, one or more wireless subscriber stations according to one or more communication channels, each of which belongs to one of the following types: a shared channel for use by multiple subscriber stations, an individual channel dedicated for use by an individual subscriber-station;

the setting, the CTE is on the network status changes, related to the first type, a first means to change the type of communication channel used to deliver broadcast content to one or more subscriber stations by performing the following steps:

notify referred to one or more wireless subscriber stations on the provision of broadcast content from a common channel to an individual channel;

analyze the responses of said one or more wireless subscriber stations to determine whether the interest of wireless subscriber stations to continue receiving the broadcast content;

designate an individual channel for each wireless subscriber stations, which announced the partnership to continue receiving the broadcast content; and

resume the transmission of broadcast content in each wireless subscriber station, each assigned to an individual channel;

changing, in response to a state change in the network related to the second type, the type of communication channel used to deliver broadcast content to one or more subscriber stations by performing the following steps:

informing the first subscriber station of the above-mentioned one renesola subscriber stations intention base station to release the individual channel, used to provide the broadcast content, and to grant referred to the broadcast content on a shared channel;

release mentioned individual channel of the first subscriber station;

determine whether another subscriber station of the above-mentioned one or more subscriber stations to progress through the stages of awareness and liberation;

in the absence of subscriber stations to progress through the stages of awareness and liberation transmit broadcast content on a shared channel referred to one or more subscriber stations.

4. The carrier signal, in material form embodying a program of machine-readable instructions executable by a digital data processor, to perform operations on the work base station in a wireless communication network, the above operations contain

providing broadcast content includes at least part of one broadcast program, one or more wireless subscriber stations according to one or more communication channels, each of which belongs to one of the following types: a shared channel for use by multiple subscriber stations, an individual channel dedicated for use by an individual subscriber-station;

changing, in response to the network condition relating to the first type, used for providing broadcast content to one or more subscriber stations by performing the following steps:

notify referred to one or more wireless subscriber stations on the provision of broadcast content from a common channel to an individual channel;

analyze the responses of said one or more wireless subscriber stations to determine whether the interest of wireless subscriber stations to continue receiving the broadcast content;

designate an individual channel for each wireless subscriber stations, which announced the partnership to continue receiving the broadcast content; and

resume the transmission of broadcast content in each wireless subscriber station for each assigned individual channel;

changing, in response to a state change in the network related to the second type, the type of communication channel used to deliver broadcast content to one or more subscriber stations by performing the following steps:

informing the first subscriber station of the above-mentioned one or more of the subscriber with whom anti intention base station to release the individual channel, used to provide the broadcast content, and to grant referred to the broadcast content on a shared channel;

release mentioned individual channel of the first subscriber station;

determine whether another subscriber station of the above-mentioned one or more subscriber stations to progress through the stages of awareness and liberation;

in the absence of subscriber stations to progress through the stages of awareness and liberation transmit broadcast content on a shared channel referred to one or more subscriber stations.

5. Logical device from multiple interconnected electrically conductive elements configured to perform operations on work base station in a wireless communication network, the above operations contain

providing broadcast content includes at least part of one broadcast program, one or more wireless subscriber stations according to one or more communication channels, each of which belongs to one of the following types: a shared channel for use by multiple subscriber stations, an individual channel dedicated for use by an individual subscriber-station;

changing, in response to changing network conditions, related to the first type, the type of communication channel used to deliver broadcast content to one or more subscriber stations by performing the following steps:

notify referred to one or more wireless subscriber stations on the provision of broadcast content from a common channel to an individual channel;

analyze the responses of said one or more wireless subscriber stations to determine whether the interest of wireless subscriber stations to continue receiving the broadcast content;

designate an individual channel for each wireless subscriber stations, which announced the partnership to continue receiving the broadcast content; and

resume the transmission of broadcast content in each wireless subscriber station for each assigned individual channel;

changing, in response to a state change in the network related to the second type, the type of communication channel used to deliver broadcast content to one or more subscriber stations by performing the following steps:

informing the first subscriber station of the above-mentioned one or more subscriber of Stantsiya intention base station to release the individual channel, used to provide the broadcast content, and to grant referred to the broadcast content on a shared channel;

release mentioned individual channel of the first subscriber station;

determine whether another subscriber station of the above-mentioned one or more subscriber stations to progress through the stages of awareness and liberation;

in the absence of subscriber stations to progress through the stages of awareness and liberation transmit broadcast content on a shared channel referred to one or more subscriber stations.