Alarm information transmission for services with broadcasting and multicast transmission

FIELD: information technology.

SUBSTANCE: base station transmits alarm information for each service in accordance with a schedule, which includes a recurrence interval and a modification interval. The warning information is transmitted in each recurrence interval, so as to provide for fast receipt of that information using a wireless device. Changes in the critical alarm information are allowed at the beginning of each modification interval, which is an integer multiple of the recurrence interval. Every time, when the critical alarm information for a given service changes in a given modification interval, a notice indicator for the service is established in the whole preceding modification interval so as to inform the wireless device on the change. Wireless devices can detect the notice indicator, established in the preceding modification interval, and can search new critical alarm information in the next modification interval.

EFFECT: provision for transmitting alarm information for services with broadcasting and multicast transmission.

44 cl, 12 dwg

 

I. priority Claim on §119 section 35, United States code

This patent application claims the priority of provisional patent application No. 60/544,147, entitled "notice Procedures and counting services multimedia broadcast/ multicast (MBMS)" dated February 10, 2004, assigned to its assignee and hereby expressly incorporated herein by reference.

Prior art

II. The technical field

The present invention relates in General to communications and more specifically to methods of information transmission systems for broadcast services and multicast in a communication system.

III. Prior art

The communication system can provide services unidirectional, group and/or broadcast. Services unidirectional transmission provide a direct link between at least one base station and a specific wireless device. Services multicast provide a link on the principle of "from one point to many points between at least one base station and the group of wireless devices. Services broadcast provide a link on the principle of "from one point to many points between at least one base station and all wireless devices within the UCU is Anna the field of broadcasting. Some examples of the services group and broadcasts include news and information services on a subscription basis, the introduction to the conversation and so on. Services group and broadcast can send data to the wireless device from time to time, periodically or continuously.

The system may be necessary to send information systems for broadcast services and multicast supported by the system. This information signaling may also be called " additional service information, system information, and so forth, and may include control information, configuration information, and other pertinent information used to receive services. The system can transmit information to the signaling control channel. The wireless device, receiving one or more services, will then control the channel control information signaling sent for accept(s) services (services). For a wireless device, it is desirable to be able to take the right information to the signaling control channel quick and effective way to save energy, rechargeable batteries, and achieve other benefits.

Therefore, in the technique there is a need in the ways of conveying information, signalizaci is for services to broadcast and multicast thus, in order to facilitate the effective application of this information.

The invention

In this description are disclosed methods of information transmission systems for broadcast services and multicast. In the embodiment, the alarm information is classified into two categories, called "critical" information alarm and "non-critical" information signaling. Critical alarm information includes alarm information required to receive the content for services. A non-critical alarm information includes the rest of the alarm information.

In one aspect, the base station transmits the alarm information for each service in accordance with the schedule, which includes, for example, the repetition period, period modifications and period information access. The period of modification can be an integer multiple of the repetition period, and the period information access can be an integer divisor of the repetition period. The base station transmits the alarm information in each repetition period of the current period modifications, to allow wireless devices to quickly obtain this information. Any changes in the critical alarm information in the current period modifications are transmitted in the beginning of the next period is and modification. If changes to critical information signaling for this service are transmitted in the next period modification, the notification indicator for a service is set for only the current period modifications, to inform the wireless device about the upcoming changes. Wireless devices can detect the notification light is installed in the current period modifications, and can then retrieve the updated critical information alarm in the next period modification.

In another aspect, the base station can perform the counting procedure for this service is to count the number of wireless devices receiving the service, and determine the best gear to use for his services. The base station may select count for each service in the beginning of the period modification to permit calculation for services. The base station may send the box count for each service, as well as information access in every age of information access. If the wireless device detects the box-counting set for any services received by the unit, the wireless device reads the information access and attempts to access the system in accordance with the access information. Information access can be changed, IFLAC count can be reset in each period information access.

Described in more detail below, various aspects and embodiments of the invention.

Brief description of drawings

Figure 1 - wireless communication system.

Figa - format channel PICH in Universal mobile telecommunications system (UMTS).

Figv format of one frame of the channel PICH.

Figa and 3B - channel transmit MCCH schedule-based.

Figure 4 - sample transmission channels MICH and MCCH.

Figure 5 - sample transmission channels PICH, MICH, MCCH and MTCH.

6 is a sample transmission channels MICH and MCCH to count.

7 - the process of transmission channels MICH, MCCH and MTCH base station.

Fig - the process of receiving channels MICH, MCCH and MTCH wireless device.

Fig.9 - the process of counting the wireless device

Figure 10 - block diagram of a base station and a wireless device.

Detailed description

The term "sample" is used in the present description to mean "serving as a example, case or illustration". Any variant of implementation, described here as "sample", should not necessarily be construed as preferred or advantageous with respect to other embodiments.

Figure 1 depicts a wireless communication system 100 capable of supporting broadcast services and multicast. The system 10 includes a base station 110, which communicate with wireless devices 120. For simplicity, figure 1 shows only two base stations 110 and six wireless devices 120. The base station is a fixed station and may also be called a node B, a base transceiver subsystem (PPO), point of access, or may use some other terminology. The wireless device may be stationary or mobile and may also be called user equipment (ON), a mobile station, a terminal, or may use some other terminology.

The controller 130 radio (red) is connected with the base stations 110 and provides coordination and control for these base stations. Cattle 130 may also be called a base station controller (ASC) or can use some other terminology. Basic network (BS) 132 connected with 130 cattle and other systems and networks such as the public switched telephone network (PSTN), a network switching packetized data, and so forth. Basic network 132 connects the system 100 with these other systems and networks.

The system 100 may be a multiple access code division multiple access (CDMA)system, multiple access with time division multiplexing (TDMA)system, a multiple access frequency division Kahn is fishing (FDMA), system multiple access orthogonal frequency division multiplexing (OFDMA), or some other multiple access system. A CDMA system may implement one or more radio access technologies (TRA), such as wideband CDMA (W-CDMA) and cdma2000. cdma2000 covers standards IS-2000, IS-856 and is-95. A TDMA system may implement one or more TDMA radio access technologies, such as global system for mobile communications (GSM). These different radio access technologies and standards are well known in the art. UMTS is a system that uses W-CDMA and/or GSM as radio access technologies and are described in documents from a consortium named "partnership Project 3rd generation (3GPP). cdma2000 is described in documents from a consortium named "partnership Project 3rd generation 2" (3GPP2). Documents 3GPP and 3GPP2 are publicly available. For clarity, the methods of transmission of the signals described below specifically for UMTS. These methods can be used for services multimedia broadcast/ multicast (MBMS) in the UMTS system.

In UMTS is used, the channel indicator search call (PICH)to send indicators search call unoccupied wireless devices. Unallocated wireless device is a wireless device for which use channels PICH and MICH. Unallocated wireless device may be wireless is wodnym device, operating in the standby mode, the wireless device operating in mode connection-URR, but in a state CELL_PCH/URA_PCH. Indicators of search call for each unoccupied wireless device point, could be sent messages on the channel search call (PCH) of the wireless device. PCH is a transport channel, which transmits to the secondary physical control channel (S-CCPCH). Each unoccupied wireless device monitors the channel PICH regarding their indicators search call. If these indicators search call is set to '1', then the wireless device processes the channel S-CCPCH to search for any messages sent to the wireless device.

Figa depicts the format of the channel PICH in the UMTS system. Channel PICH is divided into frames, and each frame has a duration of 10 milliseconds (MS). Each frame is identified by a 12-bit frame number system (AUC), which is simultaneously transmitted on the primary common physical control channel (P-CCPCH). AUC re-set to "0" at a certain time, then increases to "1" for each frame and returns to "0" after reaching a maximum value of 4095.

Each unoccupied wireless device is assigned the cases poiskovikov, which are defined frames, in which the wireless device can receive their indicators search call. Cases search call for each wireless device separated by a time interval, called the PDP cycle (intermittent reception mode). The cycle of the PDP can be configured for each wireless device and is usually of 1.28 seconds. In General, the cycle of the PDP can be in the range of 80 milliseconds (MS) to 5,12 seconds, or 8 frames of up to 512 frames. Cases search call for each wireless device is determined on the basis of several parameters, including the international identifier of the mobile subscriber (IMSI), which is an identifier that is unique for each wireless device. Various wireless devices with different IMSI can be assigned to different instances of the search call, even if they have the same cycle of the PDP.

Figv depicts the format of a single frame for channel PICH. Each PICH frame consists of 300 bits, which are represented as bits b0-b299. The first 288 bits are used for Np indicators of the search call, and the last 12 bits are reserved. The number of indicators search call (Np) in each PICH frame can be configured by the system and can be set to 18, 36, 72 or 144. Each indicator is poiskovogo call is sent to 288/Np consecutive bits in the PICH frame, where 288/Np can be set to 16, 8, 4 or 2. All 288/Np bits set to "1"if the indicator search call is equal to "1"and set to "0"if the indicator search call is equal to "0". Np indicators search call is sent to the Np location indicator of the search call, which are numbered from 0 to Np-1 (figv not shown).

Each unoccupied wireless device corresponds to a value of PI based on its IMSI. The wireless device also assigned an indicator of search call in each case the search call. This indicator search call is sent to a location that is determined based on the hash functionfpi(PI, PF). Thus, the location of the indicator search call to the wireless device is determined using the IMSI to the wireless device and the AUC for the case of the search call.

In the UMTS system uses a channel indicator MBMS (MICH)to send the MBMS notification lights (or just notification lights), which indicate whether sent updated information alarm multipoint control channel MBMS (MCCH). MCCH is a transport channel, which is also transmitted on the S-CCPCH. The alarm information in the MCCH channel allows wireless devices to receive MBMS services on the channel traffic mode is from one point to many points. The alarm information may indicate, for example, what services are active, how to decode the channel MTCH is it possible programmable consolidation and so on. Channel MTCH is a transport channel that carries data traffic or content services.

The channel of the MICH has a format similar to the format of the channel PICH, shown in Fig. 2B. Each channel frame MICH consists of 300 bits, which are represented as bits b0-b299. The first 288 bits are used for the Nn notification lights, and the last 12 bits are reserved. The number of indicators notification (Nn) in each channel frame MICH can be configured by the system and can be set to 18, 36, 72 or 144. Each indicator notification is sent to 288/Nn sequential bits in the channel frame MICH, where 288/Nn can be set to 16, 8, 4 or 2. Nn indicators notifications are sent to Nn the location of the indicator, which are numbered from 0 to Nn-1. Notification lights can also be sent using the last 12 bits in each frame channel PICH.

Each service group/broadcast is displayed at a certain value of NI on the basis of the temporary identity of the mobile group (TMGI), which identifies this service. The service also are indicators of the notification, which is sent to the location determined is built on the basis of the hash function fni(NI, BS). The location of the notification lights for services, therefore, determined by using the TMSI and for services, and the AUC for the frame. Notification lights for services are used to specify whether sent updated information signaling channel MCCH for services. Each wireless device controls the notification lights for all services that are desirable for the wireless device (or "desired service"). Whenever the notification indicator for any desired service is set to "1", the wireless device further processes the channel S-CCPCH to search for updated information signaling sent for this service.

Channel MCCH carries information of alarm systems used to support broadcast services and multicast. Wireless devices may be required to read the MCCH channel for various reasons, such as:

• start/end of service;

•change for certain services forwarding information;

• change information channel S-CCPCH code, TFCS) for channel MTCH;

• change information unidirectional radio channels (ROC) for channel MTCH; and

• start counting/recounting, as defined for UMTS system and is described below.

In the embodiment, the alarm information is sent in accordance with the schedule in which each channel MCCH. Schedule MCCH channel may be sent on the broadcast control channel (BCCH) and is available for all wireless devices. In the embodiment, the schedule channel MCCH includes the repetition period, period modifications and period information access, which are described in table 1.

Table 1
PeriodDefinitionDuration
The repetition periodThe time interval in which the alarm information is sent to the channel MCCH.Any length of time.
Period modificationsThe time at which a critical alarm information can change, such as changes to critical information signaling can be used in the first transmission channel MCCH in the period of modification.Integer multiples of the repetition period.
The period information accessThe time interval in which the access information is sent to the channel MCCHAn integer divider of the repetition period.

Schedule channel MCCH also identifies the particular frame or time interval of transmission (TRS), which contains the transmission channel MCCH. The same schedule Cana is and MCCH can be used for all services to simplify the transfer and reception of information systems for services, as described below. Alternatively, different services or different services may use different scheduling of the MCCH channel. Different parts of the timetable channel MCCH described in more detail below.

Table 2 contains a list of the different channels used to support broadcast services and multicast.

Table 2
ChannelDefinition
BCCHBears schedule MCCH channel and the unidirectional configuration of the radio channel carrying the MCCH channel.
MICHIs notification lights that indicate whether the updated critical information signaling sent in the channel MCCH.
MCCHCarries information systems for services.
MTCHIs content for services.

The alarm information sent in the channel MCCH can be classified into two categories, called the critical information and noncritical alarm information alarm. The alarm information may be independent of the service information and/or for certain services information. Critical information the alarm system includes an alarm information, which is necessary to receive MBMS content for services. For example, a critical alarm information may include MBMS information of the neighboring cell information of the MBMS services and information unidirectional radio channel MBMS. A non-critical alarm information includes all the information signaling, which is critical information signaling. For example, a non-critical alarm information may include access information to the MBMS service. These different types of information MBMS signaling is described in the document 3GPP TS 25.346, which is publicly available.

Figa depicts an implementation option of signaling channel MCCH. Information signaling for each service periodically sent in the channel MCCH in each repetition period, to be able to accept the information of the wireless devices, which only began to control the service. These wireless devices can only be included, just joined the service and/or have just completed the change of cell. For all these scenarios (except, perhaps, in a scenario of changing cells), wireless devices can tolerate a relatively long delay in receiving information signaling. Thus, the repetition period can be made relatively long to reduce product is the LCD on the alarm. In General, the repetition period can be any length of time and may include any number of frames.

The alarm information can be sent in the MCCH channel, starting from the first frame of each recurrence period and for such number of frames that you want. Thus, the repetition period identifies the beginning of the MCCH transmission. The duration of the MCCH transmission does not need to be specific and can be determined from the indicator combining transport format (TFCI)that is sent in the channel S-CCPCH. The wireless device may continue to process the channel S-CCPCH until then, until the device determines that (1) all MCCH information is accepted, (2) the TRS, which does not include any MCCH data, accepted for channel S-CCPCH, or (3) the received alarm information in the MCCH channel indicates that the further reception of the MCCH channel is not required (for example, if there are no changes to the information signal for any desired service). The wireless device may stop processing channel S-CCPCH for MCCH data when any of these three conditions.

Period modifications may include any number of repetition periods and represents the time during which a critical alarm information can be changed. On figa different marking (for example, the imposition of di is analnyj lines, grey retouching and blending cross-lines) are used for MCCH in different periods of modification and is potentially different information signaling sent by the channel MCCH. Temporal alignment changes in the critical alarm information sent to the MCCH channel, allows wireless devices to know when it may be useful to read the MCCH channel. This temporal alignment also leads to some additional delays, as well as to certain restrictions in the transfer of updated critical information signaling. A non-critical alarm information can be changed at any time, for example in any repetition period.

Figv depicts another variant implementation of signaling channel MCCH. Information signaling for each service periodically sent in the channel MCCH in each repetition period, and a critical alarm information can be changed in each period modifications, as described above with reference to figa. At the beginning of each period modifications, the system also transmits the MBMS change information, which may include, for example, identifiers of services, a critical alarm information which is changed in this period modification. The change information may be sent, at least once in each period of the first modification. Wireless devices can read information about the change and can quickly figure out whether you want the device to read the updated information alarm for any of the desired services.

The notification mechanism is used to inform wireless devices about the upcoming change in the critical alarm information sent to the channel MCCH. In the embodiment, the notification mechanism is implemented using a channel of the MICH. The MICH channel contains notification lights that suggest wireless devices that are interested in these services that meet these indicators, to read the MCCH channel to get updated information signaling. Notification lights for all of these services can be sent in a way that is robust against the errors of the channel. The MICH channel carries only one bit of information for each service, and wireless devices are unable to verify whether the information received in the channel of the MICH, right (control cyclic redundancy code (CRC) is missing). Also, the channel MCCH is transmitted on the S-CCPCH using RLC mode without confirmation, and the wireless device may skip one or even two MCCH transmission before decodes it correctly. The wireless device may have to wait for one is about or more periods of repetition, before it can decode the critical information, and after all attempts of the wireless device may detect that it was a false alarm. Reliable notification helps to avoid unnecessary receptions channel MCCH.

Secondly, notification lights can be transmitted in the channel of the MICH thus, to allow wireless devices to detect indicators of notice in cases of their prospecting call, which may reduce the resource consumption of the battery. Notification lights should also be sent so that the wireless devices in the various MBMS States could adopt these indicators. These conditions include when wireless devices expect the emergence of a service when the wireless device is actively monitor the service, but are interested in other services, and when the wireless devices have just joined, or have just moved from other cells, or become interested in the MBMS service.

Figure 4 depicts an implementation option transmission channels MICH and MCCH. Each service is assigned a notification indicator in the MICH channel in each frame. In the embodiment, the notification indicator for each service is set to '1' during the whole period of the modification prior to the change in the critical information working intensively on the promotion for this service.

Wireless devices can read MICH in different frames (for example, in cases of their prospecting call and can learn about the need to read the MCCH asynchronous way. Wireless devices will also learn the schedule of the channel MCCH and ready to start taking MCCH at the beginning of the next period modification. You do not want bronirovanie indicators notifications sent to the channel of the MICH, contained any information about bronirovanii channel MCCH, which is the case for channels PICH and PCH, as bronirovanie channels PICH and PCH is connected.

Wireless devices that have detected the notification indicator for the desired services, established in the previous period modifications can read MCCH at the beginning of current period modification. Updated information signaling may again be passed soon (e.g., immediately) after the first MCCH transmission in the current period modifications, as shown in figure 4. This fast re-transmission of the MCCH channel can improve the reliability and to ensure that all or most of the wireless devices can receive updated information from the signaling channel MCCH as soon as possible.

Figure 5 depicts a sample transmission channels PICH, MICH, MCCH and MTCH. Indicators of search call for each unoccupied wireless device is sent in the channel PICH in the cases search call to the wireless device, as shown in the upper part of figure 5. The notification indicator for each service is sent in each frame in the channel of the MICH and set at the same value of the notification (either "1"or "0") throughout the period of the modification. The notification indicator is set to "1" during the entire period of modification, immediately preceding the change in critical information signaling for services.

The period of the modification is selected sufficiently long so that all the wireless devices (even wireless devices with the longest possible cycle PDP) could handle MICH and reliably detect at least one notification indicator for each desired service during the period of modification. This allows the majority of unemployed wireless devices to take the indicators of their prospecting call and notification lights for the desired services in cases of their prospecting call, which may reduce the resource consumption of the battery. The wireless device with the PDP cycle, which is shorter than the period of modification, can read MICH during cases its search call in each cycle of the PDP. The wireless device with the PDP cycle, which is longer than the period of modification, can be activated between instances of the search call to read the indicators is madalene, send in the channel MICH. Period modifications can be chosen to be equal to or longer than a predefined minimum duration (e.g., 2 seconds)to wireless devices with long cycles PDP did not need to be activated too often. Cycles PDP for wireless devices can also be limited to a predefined maximum length (for example 5,12 seconds). Depending on the configuration of the PDP cycle and period modification, the wireless device may read one or multiple notification lights for each desired service in each period modification.

Each wireless device controls the notification lights for the desired services. When the wireless device detects that the notification indicator for the desired service is selected, the wireless device attempts to read the channel MCCH at the beginning of the next cycle modification to search updated critical information signaling for this service. The wireless device reads the MCCH as much time as you want, at least, to decode the information changes MBMS. The wireless device also reads the MCCH as much time as required to correctly decode the MCCH, or until the continuous transmission of MCCH not budeprion. A wireless device capable of detecting the end of the MCCH transmission, using the TFCI for channel S-CCPCH, even if the device cannot correctly decode the channel S-CCPCH. The wireless device may also terminate the processing of the MCCH, if the MBMS change information indicates no change in the critical alarm information for any of the desired services.

Update information signaling sent to the channel MCCH may reflect important changes in the channel MTCH, such as, for example, changes to the configuration of channel S-CCPCH or MTCH. Updated information alarm may need to be applied synchronously in the transmitter and the receiver to ensure a smooth reception of the content sent in the channel MTCH. In this case, the updated information signaling may be associated with the moment of activation. This activation indicates when the alarm information should be applied. Activation can be determined relative to the beginning of the cycle of modification and can be specified in units of cycles of repetition, personnel and so on. This allows you to tell the moment you activate effective way. Updated information signaling and its activation can be sent for some time prior to activation to ensure that wireless devices sufficient time to receive and use the Oia information alarm.

Figure 5 also depicts the early retransmission channel MCCH directly after the first MCCH transmission in the period modification to improve the reception of updated information signaling. The first MCCH transmission and early retransmission both associated with one and the same moment of activation, which occurs after early retransmission.

Wireless devices that are beginning to control this service between the moment of sending the updated information to the signaling channel, MCCH, and the moment you activate, you will not be able to make an executable service. However, these wireless devices will know about the upcoming change to the channel MTCH thanks the moment of activation. Therefore, this length of time should not have a significant impact on performance, if it is relatively short.

As shown in figa-5, schedule for channel MCCH has the following characteristics:

• information alarm is repeated in the MCCH channel on the basis of the repetition period;

• changes in critical information signaling is not done in the middle of the period of modification, which is several times higher than the repetition period;

• notification lights in the channel of the MICH installed during the whole period of the modification prior to the change in the critical alarm information transmitted in the channel MCCH;

• wireless device control MICH as it is convenient, but ensure a good probability of detection within any period of modification; and

• after detection of the notification indicator is set in the channel of the MICH, wireless devices start processing channel MCCH in the next period modifications up until the updated information of the signaling channel MCCH will not be correctly decoded.

The UMTS system uses the procedure of calculation/recalculation to determine the number of wireless devices receiving the MBMS service. The system can use this information to determine the optimal transmission mechanism for services, such as for a decision whether to send the service using point-to-point (p-t-p) channel, or channel types "of points to the set of points (p-t-m). p-t-p channel can be more effective if the service take a small number of wireless devices. p-t-m channel can be more effective if the service is accepted by a large number of wireless devices.

The procedure of calculation/recalculation takes two parameters - the box-counting and the option return access. The box counting is a bit that specifies permitted or denied counting, and is also known as the count indicator, display count, check access, and so forth. P is Ramer return controls access to the system for the counting procedure.

To enable the counting procedures for the services, the system sets the flag count for this service, which then requires Unallocated wireless device, receiving this service has established a connection control radio resource (URR) system. The system periodically sends access information on the MCCH channel, which is used Unallocated wireless device to initiate transmission of a message signaling, establishing the connection URR if necessary. The access information includes the option return access and possibly other pertinent information. Option return access describes the ratio of the probability (KV), which specifies the probability with which a wireless device should attempt to perform the procedure for establishing connection URR. Option return access is used to control the load uplink connection requests from the connection URR. This avoids the transfer of a large number of wireless devices in connected mode YPP at the same time for the purpose of calculating.

6 depicts a sample transmission channels MICH and MCCH to count. The box counting for services is set at a resolution count for services. The box counting and access information can be sent to the analog MCCH periodically in each period information access. Period of information access can be selected so that (1) associated with the access information (for example, the box-counting and the option of return) is transmitted frequently enough to provide good control of access procedures, and (2) wireless devices (including the new wireless devices that began to control the system) can take associated with the access information if they follow the schedule of the channel MCCH sent to the channel BCCH. Period of information access can be an integer divisor of the period of repetition to achieve two objectives noted above, or can be defined as a certain length of time. Schedule information access is part of a full schedule MCCH transmission, which is indicated in the channel BCCH.

The above-described mechanisms for sending notification lights in the channel of the MICH and the alarm information in the MCCH channel can also be used for the counting procedure. The box-counting can be installed at the beginning of the period modifications, which then limits the counting procedure to be initiated in the beginning of the period modification. This can simplify the counting procedure, since all wireless devices start access at the same time, which can reduce an unpredictable accident. In each period information the promotion of access the access information may be changed and/or box-counting can be re-installed. This provides the ability to quickly control the counting procedure and connection URR.

When the wireless device detects the box-counting set for the desired services, the device reads the information access and attempts to access the system using option return access included in the access information. Then the wireless device attempts to read the MCCH channel in each period, information access, to determine the state of the check box count and get the most recent information access. A wireless device, respectively, updates option return access. The wireless device continues to read the MCCH according to the period information access to until either the box-counting will not be re-installed or wireless device will not go into a state of URR, in which the counting is not required.

7 depicts a process 700 transmission channels MICH, MCCH and MTCH base station in the system. Determined, there began a new period modification (block 712). If the answer is "Yes", then the value of the notice for each service is determined based on whether the modified critical information signaling for services in the next period mod the classification (block 714). The notification indicator for each service installed on a current period modification for the value of the notifications defined for this service (block 716). For each service sends updated information alarm (if available), and can also be sent early retransmission (block 718). If block 712, the answer is "No", the process proceeds to block 722. For each service, which is associated with activation for updated information signaling, as determined in block 722, at the time of activation for this service for MTCH applies the updated information alarm (block 724).

Is then defined, there began a new period of repetition (block 732). If the answer is "Yes", the alarm information for each service re-sent in the MCCH channel (block 734). Otherwise, the process proceeds to block 742.

In block 742 is defined, there began a new period of information access. If the answer is "Yes", then the box-counting for each service or supported established to continue the resolution of the counting procedure, or reset, to prevent the counting procedure and then sent on the MCCH channel (block 744). The box-counting can be installed at the beginning of the period modification and can be reset at any period of information access. Current information access t the train is sent to the channel MCCH (block 746). If block 742, the answer is "No", and after a block 746, the process returns to block 712.

As described above, the base station transmits the alarm information for each service in accordance with the schedule, which includes, for example, the repetition period, period modifications and period information access. The period of modification can be an integer multiple of the repetition period, and the period information access can be an integer divisor of the repetition period. The base station transmits the alarm information in each repetition period of the current period modifications, to allow wireless devices to quickly obtain this information. Any changes in the critical alarm information in the current period modifications are transmitted at the beginning of the next period modification. If changes to critical information signaling for this service are transmitted in the next period modification, the notification indicator for this service is installed throughout the current period modifications, to inform the wireless devices of the upcoming changes. Wireless devices can detect the notification light is installed in the current period modifications, and can then look updated critical information alarm in the next period of the modification.

As also described above, the base station can perform the counting procedure for this service, to count the number of wireless devices receiving the service, and to determine the best transmission mechanism with a view to its use for this service. The base station may select count for each service in the beginning of the period modification to allow counting for services. The base station may send the box count for each service, as well as information access, in every age of information access. If the wireless device detects the box-counting set for any services received by the unit, the wireless device reads the information access and attempts to access the system in accordance with the access information. The access information may change, and the box-counting may be discharged in each period information access.

Fig depicts a process 800 of receiving channels MICH, MCCH and MTCH wireless device. The wireless device processes the MICH channel and detects the notification lights for the requested service (block 812). Then determines whether the notification indicator for any desired service (block 814). If the answer is "Yes", then the wireless device processes the MCCH in the next period modification and receives the information as disclosed changes MBMS (block 816). Then, the wireless device checks the information about the change to determine changed if the critical information signaling for any desired service (block 818). If the critical alarm information for any desired service is changed, the wireless device continues to process MCCH and reads the updated information signaling for each desired service identified by the information about the change (block 820). For each service, which is associated with activation for updated information signaling, as determined in block 822, the wireless device uses the updated information signaling for this service for channel MTCH during activation (block 824). The process ends after block 824, and if you answer "No" to block 814, 818, or 822.

Fig.9 depicts a process 900 for performing calculation of the wireless device. The wireless device reads the box count for each desired service, for example, at the beginning of the period modification (block 912). It then determines whether the check box counting for any desired service (block 914). If the answer is "Yes", then the wireless device receives the access information in the MCCH channel (block 916) and tries to establish a connection URR in accordance with access information (block 918). For each service is eriod information access, as defined in block 920, the wireless device reads the box-counting reads the access information in the MCCH channel and tries to access the system, based on the current option return access (block 922). The wireless device continues to read the box counting and tries to access the system as long as the box counting is reset (block 924), or a wireless device will not go into a state of URR, in which the counting is not required (block 926).

Counting to perform services (also called conversion) can be performed in the manner described above with reference to figures 9 to calculate first services.

In General, there may be different mechanisms to send notification to the alarm information sent to the channel, MCCH, and notifications for the counting procedure. These notifications can be sent (1) in the channel of the MICH, as described above, (2) channel S-CCPCH containing MTCH, or (3) using a specialized search engine call. The notification may be sent in-band on channel S-CCPCH to notify the wireless device about making configuration changes during an ongoing session (for example, due to the introduction of other services on the same channel S-CCPCH). Channel S-CCPCH may be wireless devices, actively controlling the service. Sending notifications Polo the e channel S-CCPCH provides for the transfer of additional information along with the notification, such as the identifier (ID) of the current services and/or activation. Alarm in the band has a lower probability of false alarm price additional costs. A specialized search engine call is generally applicable to any wireless device that has established a connection URR.

Sending push notifications to the channel of the MICH and the alarm information in the MCCH channel, as shown in figa-5, can provide various advantages, such as:

• simplifying the implementation of wireless devices, because a priori known wireless devices, based on the MCCH schedule, how long will be sent notification in the MICH channel and when it will be useful to read the MCCH channel;

• providing opportunities for all or most of the wireless device to start listening MCCH at the same time, which reduces the delay of receiving the updated MCCH information, the possibility to set the time of activation is close to the border of period modifications, enabling denser re-transmission, especially at a time when the MCCH information is modified, and eliminate the need to send the old and the new configuration information at the same time; and

• can be used for all scenarios notification of MBMS for the wireless device in all the state of the (unoccupied and United).

Wireless devices can read MICH periodically, during cases of their prospecting call (if the units are unoccupied) or continuously during the MTCH reception (if the device is connected). Notification lights sent to the channel of the MICH, potentially have a higher probability of false alarm than a notification in the band, but this probability of false alarm can be reduced by more frequent reading of the notification lights during the period of modification. Additional delay in the change of critical information alarm can be improved by selecting a suitable period of modification.

Describes the notification can be used as the main notification mechanism to indicate the beginning of services, and for the counting procedure. This notification scheme can also be used to send notification during the ongoing transmission.

Figure 10 depicts a block diagram of a variant of implementation of the base station 110x and the wireless device 120x. For downlink to the base station 110x encoder 1010 receives traffic data for wireless devices and services, information system and other data types. The encoder 1010 processes (e.g., encodes, punctuates and character displays) traffic data and signaling and generates modulation symbols. Module is the PR 1012 performs the formation of channels, spectral expansion, scrambling, and so forth on the modulation symbols for different physical channels (e.g., PICH, MICH and S-CCPCH) and provides a stream of coded data elements. The transmitter module (send) 1014 leads to the desired state (e.g., converts to analog, amplifies, filters and converts with increasing frequency) code data elements and generates a signal of the downlink, which is transmitted via the antenna 1016.

The wireless device 120x antenna 1052 receives signals in the downlink from the base station h and delivers the received signal to the receiver module (PFP) 1054. The receiver module 1054 leads to the desired state (e.g., filters, amplifies and converts with decreasing frequency) signal, digitizes the converted signal and provides sample data. The demodulator 1056 processes the sample data and provides estimates of the symbols. The demodulator 1056 additionally performs the detection notification lights, indicators, search call and check boxes counting under the control of the controller 1060. The decoder 1058 processes (for example, restore, reverse interleaving and decodes) the evaluation of symbols and provides decoded data for transmitted traffic data and signaling sent by the base station 110x.

In uplink communication, the wireless device 120x, traffic data is processed by the encoder 1070, further processed by a modulator 1072 and is converted by the transmitter module 1074, to generate a signal uplink communication, which is transmitted via the antenna 1052. At base station 110x signal uplink communication is received by the antenna 1016, converted module 1030 receiver is processed by a demodulator 1032 and is further processed by a decoder 1034.

Controllers 1020 and 1060 control the operation in the base station j and wireless device 120x respectively. Controllers 1020 and 1060 can also perform various functions for transmission and reception, respectively, of notification lights and alarm information for services. For example, the controller 1020 may perform process 700 figure 7 for the transmission of alarm information. The controller 1060 may perform process 800 for Fig to receive an alarm and the process 900 figure 9 for the counting procedure. Blocks 1022 1062 remember the data and code for controllers 1020 and 1060, respectively. The timer 1024 provides the time information to the controller 1020, which uses the time information to support the schedule of channel MCCH. The timer 1064 provides information about the time for the controller 1060, which uses the time information to determine when to activate the processing of PICH and MICH,and also to support the MCCH schedule.

Described in this description of methods of signaling can be implemented by various means. For example, these methods can be implemented in hardware, software or their combination. To perform hardware processors, is used to transmit the alarm information can be implemented on one or more focused on the application of integral schemes applied orientation (ASIC), digital signal processors (DSPS), digital signal processing (DSPD), programmable logic devices (PLD), programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, other electronic units designed to perform the operations described in this description of the functions or their combinations. The processors used to receive an alarm, can also be implemented on one or more ASICS, DSPS, and so on.

For the implementation in the software methods of signaling may be implemented with modules (e.g., procedures, functions, and so on)that perform the functions described here. Software codes may be stored in the memory block (for example, block 1062 1022 or memory figure 10) and executed by a processor (for example, the controller 1020 or 1060). Block pam the tee can be implemented within the processor or external to the processor, and in this case he can be communicative connected with the processor via various means as is known in the technique.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be obvious to experts in the field of technology and the General principles defined herein, can be applied to other variants of implementation, without changing the nature and scope of this invention. Thus, the present invention should not be limited to the implementation shown in this description, but must comply with the widest scope consistent with the principles and new features disclosed in this specification.

1. The data transmission method in a communication system containing transmission information signaling for at least one service in each of the repetition periods of the current period modifications, and information signaling consists of critical information signaling and non-critical information, signaling, and transmission of changes in critical information signaling for at least one service starting in the next period modification.

2. The way is about to claim 1, optionally containing retransmission information signaling for at least one service after the first transmission of alarm information in the first repetition period and up to the second repetition period in the current period modification.

3. The method according to claim 1, additionally containing establishing notification indicator for each service on a pre-defined value in the current period modifications, if changes to critical information signaling for services are transmitted in the next period modification.

4. The method according to claim 3, additionally containing the transmission of the notification indicator for each service in each frame in the current period modification.

5. The method according to claim 1, additionally containing transfer information about changes in at least one repetition period of the current period modifications, and information about the change for the current period modification identifies each service through changes in critical alarm information in the current period modification.

6. The method according to claim 1, additionally containing a transmission time of activation for each of the selected services with changes in the critical alarm information, and applying the changes to critical information signaling for each of the selected services at the time of activation for the selected service.

7. With whom persons according to claim 1, optionally containing a transmission schedule with the repetition period and the period of the modification.

8. The method according to claim 1, additionally containing the definition of the period modification comprising an integer multiple of the repetition period.

9. The method according to claim 1, additionally containing the definition of the period of the modification is equal to or longer than a predefined minimum duration.

10. The device information transmission in a communication system containing a transmitter module designed to transmit information signaling for at least one service in each of the repetition periods of the current period modification and for transmitting changes to critical information signaling for at least one service starting in the next period modifications, and information signaling consists of critical information and noncritical alarm information alarm, and a controller that provides control information transmission alarm transmitter module.

11. The device according to claim 10, in which the controller further ensures the establishment of the notification indicator for each service on a pre-defined value in the current period modifications, if changes to critical information signaling for services are transmitted in follow the eat period modification.

12. The device according to claim 10, in which the transmitter module is additionally designed to transmit information about changes in at least one repetition period of the current period modifications, and information about the change for the current period modification identifies each service through changes in critical alarm information in the current period modification.

13. The device according to claim 10, in which the transmitter module is additionally designed for torque transmission activation time for each of the selected services with changes in the critical alarm information, the controller enforces changes in the critical alarm information for each selected services at the time of activation for the selected service.

14. The device according to claim 10, in which the transmitter module is additionally designed for transmission schedule with the repetition period and the period of the modification.

15. Device for transmitting information in a communication system containing means for providing alarm information, for at least one service in each of the repetition periods of the current period modifications, and information signaling consists of critical information and noncritical alarm information alarm, and means for transmitting changes in critical information is AI alarm, for at least one service starting in the next period modification.

16. The device of clause 15, further containing a means for establishing a notification indicator for each service on a pre-defined value in the current period modifications, if changes to critical information signaling for services are transmitted in the next period modification.

17. The device of clause 15, further containing a means for providing information about changes in at least one repetition period of the current period modifications, and information about the change for the current period modification identifies each service through changes in critical alarm information in the current period modification.

18. The device of clause 15, further containing a means for transmission of activation for each of the selected services with changes in the critical alarm information, and means for applying changes to critical information signaling for each of the selected services at the time of activation for the selected service.

19. The device of clause 15, further containing a means for transmitting the schedule repetition period and period modification.

20. The data transmission method in a communication system containing setting at least one flag count is, for at least one service in the current period modifications, and the box count for each service is set at the beginning of current period modifications, if the count for the service is allowed, and the transfer of information access in each of multiple periods of data access in the current period, modification, and access information includes at least one check box counting and access information used to access the system for counting.

21. The method according to claim 20, further containing changing information access, if applicable, in each period information access.

22. The method according to claim 20, additionally containing the reset check box count for each service, if applicable, in any period of information access.

23. The method according to claim 20, additionally containing the definition of the period of information access, as constituting an integer divisor of the period of the modification.

24. Device for transmitting information in a communication system containing means for establishing at least one box-counting for at least one service in the current period modifications, where the box count for each service is set at the beginning of current period modifications, if the count for the service is permitted, and means for providing information access in each of multiple periods of data access is in the current period modifications, moreover, the access information includes at least one check box counting and access information used to access the system for counting.

25. The device according to paragraph 24, further containing a means for changing information access, if applicable, in each period information access.

26. The device according to paragraph 24, further containing a means to reset the box count for each service, if applicable, in any period of information access.

27. The method of receiving information in a communication system containing the detected at least one notification indicator for at least one service in the first period modifications, where the notification indicator for each service is set in the first period modifications, if critical information signaling for services changes in the second period modifications, following the first period modifications, and receive in the second period modification of critical information signaling for each service, with the notification light is installed in the first period of the modification.

28. The method according to item 27, further defining whether critical information signaling for any service from the moment you activate and use critical information signaling for each service at the time of activation, if it presets the edge.

29. The method according to item 27, further containing receiving information about the change, identifying each service through changes in critical alarm information in the second period, modifications, and receive critical information signaling for each service, from among at least one service identified by the information about the change.

30. The method according to item 27, further containing activation in cases of search and call, related to the wireless device, and the detection of the indicator search call for a wireless device in each case the search call, and at least one notification indicator for at least one service found in each case a search call to the wireless device.

31. A device for receiving data in a communication system containing a demodulator that is designed to detect at least one notification indicator for at least one service in the first period modifications, and the notification indicator for each service is set in the first period modifications, if critical information signaling for services changed in the second period modifications, following the first period of the modification, and the processor is intended for receiving in the second period modification of critical information alerts the implementation for each service, with the notification light is installed in the first period of the modification.

32. The device according to p, optionally containing controller designed to determine whether critical information signaling for any service from the moment you activate and use critical information signaling for each service at the time of activation, if it is present.

33. The device according to p, in which the processor is designed to receive information about the change, identifying each service through changes in critical alarm information in the second period, modifications, and receive critical information signaling for each service, from among at least one service identified by the information about the change.

34. The device according to p, optionally containing a timer, designed to specify the cases in search of a call relating to a device, the demodulator provides detection indicator search call to the wireless device and detecting at least one notification indicator for at least one service in each case the search call to the wireless device.

35. A device for receiving data in a communication system containing a means for detecting at least one notification indicator for less than the least for one service in the first period modifications, and the notification indicator for each service is set in the first period modifications, if critical information signaling for services changed in the second period modifications, following the first period modifications, and means for receiving, in the second modification, the critical alarm information for each service, with the notification light is installed in the first period of the modification.

36. The device according to p, further containing a means for determining whether the critical information signaling for any service from the moment you activate, and means for applying critical alarm information for each service at the time of activation, if it is present.

37. The device according to p, optionally containing means for receiving information about the change, identifying each service through changes in critical alarm information in the second period, modifications, and means for receiving critical information signaling for each service from among the at least one service identified by the information about the change.

38. The device according to p, further containing a means for activation in cases of search and call, related to the device, and means for detecting indica is ora search call for the device, and at least one notification indicator for at least one service in each case the search call for the device.

39. The method of receiving information in a communication system containing the detected at least one box-counting for at least one service in the current period modifications, and the box count for each service is set at the beginning of current period modifications, if the count for the service is allowed, and if the box count is set to any one of the at least one service, the reception of information access and attempted access to the system in accordance with access information.

40. The method according to § 39, optionally containing for each period information access in the current period modification detection check box count for each service with a flag count established at the beginning of current period modifications, and if the box counting is still installed in the age of information access to any one of the at least one service, the reception of information access and attempted access to the system in accordance with access information.

41. The method according to § 39, optionally containing complete access to the system, if at least one box-counting for at least one service reset.

42. The method according to § 39, optionally containing C the cause of access to the system, if the system connection is established.

43. A device for receiving data in a communication system containing a means for detecting at least one of the box-counting for at least one service in the current period modifications, and the box count for each service is set at the beginning of current period modifications, if the count for the service is permitted, means for receiving information access, if the box count is set to any one of the at least one service, and the means of access attempts to the system in accordance with access information, if the box count is set to any one, least one service.

44. The device according to item 43, further containing a means for detecting in each period information access in the current period modification, box count for each service with a flag count established at the beginning of current period modification, the means for receiving information access, if the box counting is still installed in the age of information access to any one of the at least one service, and the means of access attempts to the system in accordance with access information, if the box counting is still installed in the age of information access to any one of the at least one service.



 

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22 cl, 3 dwg, 4 tbl

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19 cl, 5 dwg

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14 cl, 4 dwg

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2 cl, 5 dwg, 1 tbl

FIELD: mobile communications.

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5 cl, 13 dwg

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EFFECT: higher precision, broader functional capabilities, higher efficiency.

5 cl, 22 dwg, 1 tbl

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