Method of presenting channel for blocking control of composite data transmission speed in wireless communication system

FIELD: information technology.

SUBSTANCE: method involves reception of at least two pilot signals from an access network (AN) over at least two direct traffic transmission channels, transmission of at least two channel quality information at one return carrier to the AN, which are at least one of the level and quality of each corresponding direct channel for the pilot signal. Channel quality information denotes the desired data transmission speed for receiving data over the corresponding direct traffic channel, and receiving feedback information over the direct control channel of the AN. The feedback information includes channel quality composite information, which indicates whether the AN is capable of receiving multiple channel quality information transmitted by an access terminal (AT) at one return carrier.

EFFECT: efficient operation of the wireless communication system by simplifying or reducing the volume of assistance traffic with respect to signal transmission.

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The technical FIELD TO WHICH the INVENTION RELATES.

The present invention relates to a method for transmission of information consisting of a combination of information, which equally applies to all recipients, and, more particularly, to a method of presenting channel blocking control the transmission rate of the combined data in a wireless communications system.

The LEVEL of TECHNOLOGY

In the communication system with multiple access communication between users is performed using one or more base stations, also called access network (AN). Here multiple access refers to the simultaneous transmission and/or reception. There are several multiple access technologies in the art, such as multiple access with time division multiplexing (TDMA), multiple access frequency division multiple access (FDMA), multiple access with amplitude modulation and multiple access code division multiple access (CDMA).

Typically, communication system, multiple access can be wireless or wired and can transmit voice and/or data. An example of a communication system that transmits voice and data, is a system (e.g., CDMA2000) in accordance with the standard IS-95 system, the corresponding 3rdGeneration Partnership Project 2 (3GPP2).

In the communication system with the multitude of the public access data exchange between users can be implemented through one or more base stations or AN. The first user on one mobile station, which is also known as access terminal (AT) or a subscriber station associated with a second user of the second mobile station, or AT by passing data through a return line (RL) in AN. 'AN (base station) may receive data and may send data to another AN. This data is then passed along a straight line (FL) in the same or AN other'AN AT the second (mobile station). Here FL refers to a transfer from AN at at, and RL refers to transmission from AT at AN. Thus, there may be a relationship between the first user on the same wireless or cable and AT a second user of a wireless or cable'AN.

As noted above, the communication system with multiple access can transmit voice and/or data. Given the wide popularity of services based on the data (for example, world network), is constantly increasing interest in data transmission. An example of a system designed only for data transmission is a data transmission system with high data rate (HDR) (for example, a CDMA system). The data transmission system HDR is a system designed for packet data. For efficient data transfer package for FL and RL in this system must be planned for accordingly. Planning is the th procedure performed in AN to determine and control the data rate AT. AN exercise plan based on feedback information transmitted from the AT, based on information related to power and AT the quality of the data that should be transmitted from AT. Thus, AN manages the data transfer rate AT different.

While working on AN FL transmits data in particular AT who has the best status of the channel so that it can be installed a maximum throughput of data transmission AT. In RL a lot AT simultaneously access AN. Therefore, AN controls the flow of data from AT to prevent congestion of traffic and drives the auxiliary data within its bandwidth.

Data transmission on the RL control by using a bit of activity return line (RAB) and the message limit reverse data rate (RRL), transferred from AN existing system HDR. Direct channel access control to the data transfer medium (MAC) passed AT using multiplexing time division (TDM), together with a pilot channel, a bit of activity straight line (FAB) and RAB. RAB represents the degree of distortion in RL, and the data rate available for AT, varies depending on the RAB. Thus, AN increase or decrease speed re the ACI data AT using RAB during the control of auxiliary data and bandwidth RL.

Information related to data transfer rates, typically transfer between the AT and the AN, and, thus, increases the amount of service load transmitted in the form of signaling. Reducing or simplifying the overhead of the load with respect to the transmission of signals, it is possible to achieve more efficient operation of the system.

The INVENTION

In accordance with this present invention is directed to a method of presenting channel blocking control the transmission rate of the combined data in a wireless communication system, which essentially eliminates one or more problems related to limitations and disadvantages of the prior art.

The purpose of the present invention is to provide a method for assignment feedback information in part of the channel control access to the data transfer medium (MAC) in wireless systems.

Another objective of the present invention is to provide a method for destination information feedback control channel in the communication system.

Additional advantages, objectives and features of the invention will be understood partly from the following description and will be clear to a person skilled in the art after studying the following disclosure, or may be the zuchini in the practical application of the invention. The objectives and other advantages of the present invention may be realized and attained by using patterns, in particular as disclosed in the description and the claims, as well as presented on the attached drawings.

To achieve these objectives and other advantages and in accordance with the purpose of the invention as it is embodied and broadly described herein, the method of assignment feedback information in part of the channel control access to the data transfer medium (MAC) in wireless communication system includes the steps of: taking at least two of the pilot signal from the access network (AN), at least two direct channels of traffic, pass on at least two quality information channel on one reverse carrier in AN representing at least one of the level and quality of each respective direct the pilot channel and the channel quality indicates the desired data rate for receiving data corresponding direct channel traffic, and receive information feedback through the direct channel management in AN information feedback includes the combined information of the channel quality, which indicates whether AN accept many of the information quality of a channel transmitted by the access terminal (AT) in one reverse carrier.

In another aspect of this is part II of the invention, the method of assignment feedback information in part of the channel control access to the data transfer medium (MAC) in wireless communication system includes the steps of: accept, at least two of the pilot signal from the access network (AN), at least two direct channels pass through a single reverse channel, at least two quality information channel'AN, which represent at least one of the level and quality of each respective direct the pilot channel and the channel quality indicates the desired data rate for receiving data corresponding direct channel traffic, and take at least two feedback information through at least two direct channel'AN and reverse communication includes the combined information of the channel quality, which indicates whether AN take a lot of information quality transmitted by the access terminal (AT) over a reverse channel, and at least two feedback information contain the same information and are transmitted through these, at least two direct channel.

In an additional aspect of the present invention, the method of appointment of the information feedback control channel in a data transmission system includes the steps of: taking at least two of the pilot signal from the base station (BS), at least one of a direct control channel transmit at least two quality information channel in the BS, representing, for less than the least one of the level and quality of each respective direct control channel, the information quality of the channel indicates the desired data rate for receiving data corresponding to a direct control channel, and receives feedback via a reverse control channel BS, and the information feedback includes the combined information of the channel quality, which indicates whether the BS to receive the information quality of a channel transmitted by the mobile station (MS).

In another aspect of the present invention, the method of assignment feedback information in part of the channel control access to the data transfer medium (MAC) in wireless communication system includes the steps: transmitting at least two of the pilot signal at the access terminal (AT), at least two direct channels, received through one reverse channel, at least two quality information channel from AT representing at least one of the level and quality of each respective direct pilot channel, in which information about the quality of the channel indicates the desired baud rate data for receiving data corresponding direct channel traffic, and transmit the at least two feedback information through at least two direct control channel access network (AN), and the formation feedback includes the combined information of the channel quality, which indicates whether AN take a lot of information quality channel transmitted from the AT, and at least one feedback contains the same information and is transmitted through these, at least two direct channel.

It should be understood that as the preceding General description and the following detailed description of the present invention are only examples and explanations, and are intended to provide further explanation of the invention as it is claimed.

BRIEF DESCRIPTION of DRAWINGS

In the attached drawings, which are included to enable a deeper understanding of the invention and which are part of this application, shows illustrations variant (variants) embodiment of the invention, and together with the description, they are intended to explain the principle of operation of the invention.

Figure 1 presents a conceptual diagram of a wireless communication system;

figure 2 shows the block diagram of the forward and reverse channels physical layer;

figure 3 shows the block diagram of the structure of the forward link data transmission systems HDR;

figure 4 illustrates an example communication system having more than one FL carrier and one RL carrier; and

figure 5 illustrates a communication system having at least two bearing FL and at least two RL carrier, in accordance the with another alternative embodiment of the present invention.

DETAILED description of the INVENTION

The below described preferred variants of the embodiment of the present invention, examples of which are presented in the attached drawings. Whenever possible, the same number of the reference positions are used throughout the drawings to designate the same or similar parts.

Figure 1 illustrates a conceptual diagram of a wireless communication system. AN 101 transmits data AT 100 in a straight line 110 (FL), and AN1 101 receives the data AT 100 through a return line (RL). Similarly, AN2 102 and AN3 103 transmit data at 100 FL 120 FL and 130, respectively, and receive data from the AT 100 RL 121 and RL 131, respectively.

Data transmission on the FL may occur from one AN one AT maximum data rate supported by FL and communication system, or close to it. Other channels FL (e.g., control channel) can be transmitted from multiple'AN in one AT. Data transmission on the RL may occur from one AT one or more of AN. AN1 101, AN2 102 and AN3 103 is connected to the controller 105 through the return channels 140, 150 and 160, respectively. The term "reverse channel" is used to denote lines of communication between the controller and AN. Although only one and three AT AN shown in figure 1, to a person skilled in the art will understand that this is just an example and that the communication system can contain many AT and AN.

After that, if AN is selected from the active set based on the set parameters, this will be called AN serving AN. Here serving'AN can also be called AN, which is associated with AT. The set of parameters may include current and previous measurement results SINR, frequency error bits, and other parameters known to the person skilled in the art. For example, AN choose in accordance with the highest measured SINR value.

AT 100 may then transmit the selected'AN message control data rate control (DRC) the DRC channel. Send a message DRC also can be called p is the transfer of the DRC report. The AT may transmit a message DRC or DRC report even through every 1.67 MS.

In 1xEV-DO all of the parameters associated with the DRC, are fixed, if AT selects the DRC. In other words, the choice of the DRC captures the data rate, the packet length, the number of intervals, the speed of encoding, modulation type, the length of the preamble and the number of repetitions. Nx EV-DO, but the choice AT DRC provides an comparable set of transmission formats. Thus, AN can decide, which one of the transmission formats to use, given the size of the package, the package type (for one or many AT), quality of service (QoS) and requirements of other users who are active in this sector.

The DRC message includes the conditions of the radio channel, measured AT each, and may contain the requested data rate or, alternatively, the indication of the quality of the straight line (for example, the measured SINR value or the error rate of bits). For example, AT 100 may send a message DRC in particular'AN by using a Walsh code that uniquely identifies a particular'AN. The characters of the message DRC is subjected to a logical operation exclusive OR" (XOR) with a unique Walsh code. The XOR operation is called coating Walsh for the signal. Since each AN in the active set AT 100 identified by a unique Walsh code, only selected the th'AN, which performs an XOR operation, is identical to the operation performed AT 100 with the correct code Walsh, can correctly decode the DRC message.

Data intended for transmission in AT 100, take in the controller 105. For example, the controller 105 transmits all data in AN active set AT 100 on the backward channel 140, 150 and 160. After that, the controller 105 may initially determine what'AN was selected AT 100 as a service'AN, and then can send data to service AN. The data remain in the queue in AN. The paging message may then be passed to one or more of AN in AT 100 on the respective control channels. AT 100 may then demodulate and decode the signals received via one or more control channels, for receiving paging messages.

In each time interval'AN can schedule data transmission in any of the AT, which received paging message. 'AN uses the management information data rate adopted AT each message DRC, for efficient transmission of data FL with the greatest possible speed. For example, the AN determines the data rate at which data is passed in AT 100 on the basis of the last message DRC adopted out AT 100. In addition, AN can uniquely identify data transmission AT 100 using code extension (for example, a long pseudo-noise is howling (PN) code), which is unique to that mobile station.

AT 100, is used for the data packet, receives data to be transmitted and decodes the data packet. For example, each data packet associated with the identifier (e.g., sequence number), which is used AT 100, to detect missing or duplicate transmission. In this case, AT 100 passes through the RL channel sequence numbers of missing data. The controller 105, which receives the message data from AT 100 through AN associated with the AT 100, then refers to AN which modules data were not taken AT 100. AN then plans retransmission of such data.

When the data transmission channel between AT 100 and AN1 101 mode with variable data rate deteriorates below a required level of reliability, AT 100 first attempts to determine whether communication with AN other mode variable speed transmission of data supporting an acceptable data rate. If AT 100 finds such AN (e.g., AN2 102 or AN3 103), may be redirected to AN 102, in another line of communication, and data transfer will continue from AN 102 mode with variable data rate. The above-mentioned deterioration of the communication line can be associated with (e.g., AT 100 moves from the service area 100 in AN area AN2 102) what teneniel, attenuation and other reasons known to the person skilled in the art. Alternatively, when it becomes available line of communication between the AT 100 and the other AN (e.g., AN2 102 or AN3 103), which allows to achieve a higher data transfer rate than the currently used time line may redirect AN 102 in another line of communication, and data transfer will continue from AN 102 mode with variable data rate. If AT 100 cannot detect'AN, which can operate in a mode with a variable data rate and can maintain an acceptable data rate, the AT 100 proceeds to transfer mode with a fixed data rate.

In an example embodiment AT 100 can evaluate the communication line with AN all - candidates, as for the mode with variable data transmission speed and mode with a fixed data rate, and selects AN, which provides the greatest throughput.

AT 100 can switch from a mode with a fixed data rate mode back with variable data transmission rate, if the sector is no longer a member of the active set AT 100.

To a person skilled in the art will understand that AN may contain one or more sectors. In the above pisaniferry AN generally used for clarity of explanation of the basic concepts of data transmission system of HDR. However, the specialist in the art can extend the concepts presented in'AN, containing any number of sectors.

As described above, the data transmission system HDR can be used for voice and/or data. Given the advances in modern technology, wireless communication has moved from networks with analog carrier to large digital networks that use many different standards. Some standards are designed so that they are provided the ability to transfer both data and voice, while the other is basically designed only for data transmission, such as the standard Evolution Data-Only (EV-DO) (Development - only data). Data-Only also stands for Data Optimized (optimized data).

Characteristics of FL for EV-DO include the lack of management capacity, and lack of a smooth transfer of the service to the mobile station. More specifically, AN transmits at a constant power, while requests AT a variable data rate in FL. A more detailed explanation, FL below.

As for the standard EV-DO, for transmission over the direct channel traffic'AN receives a packet physical layer with one of several standard sizes in bits, modulates it into a sequence of symbols, and then uses repetition and vikalev the tion, accordingly, to generate the modulated packet.

AN then transmits a part or a subpackage of the modulated packet. If the AT receives a subpackage with a fairly small number of error characters, he can analyze and reconstruct the original packet physical layer without error bits. AT then tries to reconstruct the original packet without error bits using both subpackage, which he accepted.

Figure 2 shows the block diagram of the forward and reverse channels of the physical layer. As shown in figure 2, direct channels physical layer can be determined on the pilot channel, control channel media access data (MAC), control channel and channel traffic. Here channel MAC can be further defined by a reverse channel activity (RA)channel blocking DRC channel RPC (reverse power control channel) and channel ARQ (automatic request for repetition). Here direct physical channels transmit AT TDM (multiplex transmission time division). The control message and the nested package user data is passed through a direct control channel (i.e. the channel DRC), which corresponds to the General channel. Direct channel MAC is used to transmit various information such as control information of the reverse data rate (i.e DRC) and information management the program capacity.

In addition, the reverse channel physical layer can be determined according to the channel access and channel traffic. The access channel is used by the AT to establish a connection with'AN, and this channel can be additionally defined a pilot channel and a data channel. Channel traffic may contain primary and auxiliary pilot channels, channel MAC channel acknowledgement (ACK) and channel data. Here channel MAC can be further defined by the channel indicator reverse speed (RRI), the DRC channel and the control channel data source.

Reverse physical channels are different from direct physical channels so that the reverse physical channels have different identification codes established on the basis for each AT. Reverse channels for each are AT the pilot channel, the reverse channel traffic, the DRC channel, the channel indicator reverse speed (RRI)channel access and so on. A packet of user data is transmitted via the reverse channel traffic. The access channel is used when the AT transmits a message or traffic in AN before is connected to channel traffic. The DRC channel is used to notify AN on the highest data rate at which the AT can receive data, but also about the quality of the channel for a channel intended for transmission on each AN. The RRI channel is used to provide notification of sorostitute data when data is passed through the reverse channel traffic.

Figure 3 shows the block diagram of the structure of a direct channel of communication systems HDR. Figure 3 shows a direct channel that can transmit the trafc channel, the preamble, the channel access control to the data transfer medium (MAC) and a pilot channel at at. After the signal channel traffic will be encoded in the encoder (not shown), modulated in the modulator (not shown), and there will be alternation in the block interleave (not shown), the signal channel traffic and put repeat in accordance with the speed data module 301 repeating sequence/puncturing symbols. The demultiplexer (DEMUX) symbol 302 further demultiplexes the output module 301 repetition/puncturing symbol. For example, DEMUX 302 converts the 16 consecutive bits in the 16 signals of the parallel channel. The expander 303 Walsh extends each of the 16 channels signal channel 16 Walsh codes. After that, the module 304 gain channel Walsh controls the gain of the enhanced signals. The adder 305 item-level Walsh sums the outputs of the module 304 gain channel Walsh at the level of the signal elements.

The preamble of the display module 306 point display signal. More specifically, the module 306 of the display point signal displays 0 and 1 on the +1 and -1, respectively. The expander 307 Walsh extends the output signal is of odule 306 display point signal, using a given Walsh code (e.g., 64-character biorthogonol floor). Then the output signal of the expander 307 Walsh repeat module 308 repetition of the sequence.

The multiplexer 390 (TDM) time division multiplexes, using the property time-sharing signal traffic received from the module adder 305 item-level signal Walsh, and the preamble signal, received from the module repetition 308 sequence in accordance with the control signal TDM.

Direct channel MAC transmits, for example, the bits of the power control of the reverse channel (RPC)bits hybrid automatic request (H-ARQ), the last ARQ (L-ARQ), ARQ (automatic request) package (P-ARQ) and/or the DRCLock symbols. In addition, direct channel MAC can transfer bits of activity in the direct channel (FAB) and the bits of activity in the reverse channel (RAB). H-ARQ indicates whether the packet sent at certain intervals (for example, m-8, m-7, m-6 or m-5), successfully adopted in AN. L-ARQ refers to the reception of the fourth subpackage using oriented negative feedback manipulation type "on-OFF". P-ARQ indicates whether the package is transferred, starting from a certain interval (for example, m-48), in particular, adopted in AN.

In accordance with this channel MAC can be further defined by the RA channel on which to transmit RAB, the RPC channel, W is the transmit bits RPC the ARQ channel on which to transmit the bits of the H-ARQ bits L-ARQ bits and P-ARQ, and the DRCLock channel, intended for the transmission of the DRCLock symbols.

With regard to channel RA'AN uses the RA channel for information transfer AT all within its service area of current activity in the return line (RL). The RA channel transmit RAB, which may be transmitted via the serial intervals RABLength with a data transfer rate of 600 bits per second.

As for the RPC channel, uses AN RPC channel for power control during transmission from RL AT. Bit RPC passed through RPC channel having a data rate, for example, 150 bits per second. As for the DRCLock channel, AT uses this channel to provide quality DRC in AN. Simply put, AN reported AT whether the quality of the DRC good or bad. For example, DRCLock may be represented by one (1) bit (for example, "0" is bad and "1" for the good).

In addition, for the DRCLock channel, if a sector or AN can't take from DRC AT specific, AN (sector) will not plan AT this particular for the transmission of FL, and therefore, AT continues to request the service through the DRC. For example, if the bit DRCLock for AT will be set to "0"AT stops sending DRC in this sector.

In a straight line there is no power control in the mobile communication system (for example, the HDR system), because it sends signals to its maximum the second transmit power. However, soft transfer of the mobile terminal and the control power required for the reverse link. Therefore, the AN transmits bit RPC as feedback power control. When this bit RPC is generated in each frame (for example, 26,67 MS), the module 310 of the display point signal generates a signal consisting of +1 or -1 in the form intended for actual transmission. Module 311 RPC channel gain controls the gain, and then the whole output signal is multiplied with the multiplier 314 TDM. After that, the output of the multiplier 314 TDM extended using Walsh code (e.g., 128-character Walsh code).

Similarly, the symbol DRCLock can be transmitted over a direct channel MAC. In this process, the symbol DRCLock is passed through module 318 of repetition bits. The output module 318 repetition is then processed using the module 319 display point signal. Module 320 enhance the DRCLock channel controls gain, and then its output is multiplied with the multiplier 321 TDM. After that, the output of the multiplier 321 TDM expanded using Walsh code (e.g., 128-character Walsh code).

As for RAB, he also handled using the module 323 display point signal and is converted into a signal consisting of +1 or -1 in a form suitable for the actual transfer, and module 324 enhance channel activity of the reverse channel prediciting (RA) controls the gain. After that, the output module 324 gain channel of RA is multiplied by the code 325 Walsh.

As for the pilot channel signals of the pilot channel 0s and 1s appear on the +1 and -1, respectively, in the module 340 point display signal. After that, the multiplier 341 multiplies the output module 340 point display signal for a given Walsh code and outputs a signal of an extended pilot channel.

The adder 330 item-level signal Walsh summarizes RPC, RAB, the DRCLock symbols and the like. Module 331 repeating sequence repeats the sum of a certain number of times (e.g. three times) and multiplies repeated the sum in the second half of the direct transmission interval before transmission to the AT. The multiplier 390 TDM multiplies the output signals received from the module adder 305 item-level Walsh, modules 305 and 331 repeat sequence from multiplier 341.

Table 1 shows the parameters of the modulation outputs of the RA channel, channel RPC and DRCLock channel.

tr>
Table 1
Channel RARPC channelThe DRCLock channel
Baud rate (bits per second)600150150/(DRCLockLength)
The factor of repetition bits11DRCLockLength
Modulation (channel)BPSK(I)BPSK
(I or Q)
BPSK (I or Q)
The transmission speed of the modulation symbols (symbols/s)1 200300300
Length of coverage Walsh128128128
The ratio of the repeating sequence of Walsh222
Items/intervals PN256256256
Elements/bits PN256256256 H DRCLockLength

In contrast to the characteristics of FL, characteristics RL EV-DO include capacity management, a smooth transfer of the mobile terminal and the absence of multiplexing time division (TDM). More specifically'AN can control the th power RL, using RPC. In addition, more than one AN can accept the transfer AT. In addition, there are two protocols used for processing two types of messages, namely the Protocol reverse trafc channel MAC associated with the message user data and Protocol access channel MAC associated with the alarm message.

In the system 1xEV-DO usually have one carrier FL on one RL carrier. In other words, there is a one-to-one correspondence between the bearing FL and RL carrier. However, in the system Nx EV-DO usually use more than one carrier FL and at least one RL carrier. In the system Nx EV-DO, and 1xEV-DO, the quality of the channel bearing FL is provided by DRC, and the quality of the channel carrier RL is provided by DRCLock.

In more detail, when AN is data for transmission to the at, AN initially determines the status or condition of the channel FL to ensure fast and reliable data transfer. As mentioned above, Nx EV-DO, AT typically associated with many bearing FL. In addition, the AN transmits a signal (e.g., pilot signal) AT, for example, for each direct channel traffic. After receiving the signal AT determines the quality of the forward link traffic, on which the signal was received, and transmits information about the quality of the channel (below called DRC) of the corresponding channel in AN one channel. That is, even if meets the many DRC, relevant direct channels of traffic, only one reverse trafc channel is used to transfer many of these DRC in AN. Here AT can include in DRC data rate, which is considered to be the best for receiving data, based on the state of the channel of each downlink channel. In addition, the DRC may include location information. Location information is important because it can move AT.

AN then receives and decodes the DRC adopted AT AT. In response, transmits AN information feedback (also called DRCLock) in AT, when there was more than one DRC, as in the case above. Any feedback or DRCLock includes the combined information of the channel quality (or combined DRCLock), which indicates whether AN accept DRC transmitted AT. Thus, AN notifies AT about the status of RL channels in General.

For example, if the DRC associated with three (3) bearing FL, passed in AN one reverse channel traffic, AN determines whether it is correct to take DRC three (3) channels FL, passed AT one backward channel. AN then transmits the result of determination by one of the three (3) channels FL.

Figure 4 presents an example of a communication system having more than one carrier FL and RL carrier. Bearing FL are used to transfer data from AN 410 in AT 400. Campisano above, DRC related to bearing FL, are provided in AN AT 410 400, and DRC represent the quality of the channel for channel FL. Here this information is passed using the RL carrier. Since there is a separate carrier RL, DRC (for example, DRC_a, DRC_b and DRC_c) can be multiplexed.

Figure 4 shows that the three (3) DRC are for each FL channel, namely DRC_a 401, DRC_b 402 and DRC_c 403 - one RL channel. Before taking DRC for each FL channel'AN 410 transmits three signals (e.g., pilot signal) AT 400 through three channels FL to assist in determining the state of the channel in the FL channel. Using a pilot signal, for example, AT 400 determines the quality of the channel for the forward link traffic and transmit information to the DRC for each channel FL taken in AN 410. As described above, carrier RL is used to represent the quality of the channel control signal from AT 400 in AN 410.

Since only one RL carrier available for transmission to AT-in-AN, uses a single RL carrier. Here in RL, DRC (for example, DRC_a, DRC_b and DRC_c) can be multiplexed. In addition, when transmitting RL, AT 400 includes the desired data rate at which AT 400 will accept data for each channel traffic FL. AT 400 also includes information on the service sector, which refers to the services section AT. Location information AT is useful, in particular, in situations of transfer of the servicing of the mobile terminal.

After AN 410 will take from DRC AT 400, AN 410 may use the DRCLock channel to provide quality RL channel on which the information was provided DRC. More specifically, the combined channel 405 DRCLock, which represents the portion of the direct channel MAC, you can use when there is more than one multiplexed DRC received by carrier RL.

In practice, combined DRCLock can be used to refer to AT 400 whether AN 410 to receive information on the DRC submitted AT 400. For example, one bit can be used to represent the combined DRCLock. Thus, if combined DRCLock is represented by "0", then it indicates that AN 410 may not take the information DRC, while if combined DRCLock is represented by "1", then it means that AN 410 can receive information DRC. Here the combined information DRCLock is generated on the basis of the quality of the channel RL.

Figure 5 illustrates a communication system having at least two bearing FL and at least two bearing RL in accordance with another alternative embodiment of the present invention. Figure 5 shows two (2) bearing FL and two bearing RL. Bearing FL are used to transfer data from AN 510 in AT 500. There are two (2) DRC for each channel FL, namely DRC_a 501 and DRC_b 502 represent one channel RL traffic. Any one, less is th least two bearing RL can be used for transmission of the DRC. As described above, the DRC can be multiplexed on a single RL carrier. In addition, the transmission AT 500 in AN 510 may optionally include the desired data rate for transmission to FL and information sector.

In response to DRC, arriving at one of the RL carrier, AN 510 may assign any of FL carriers (e.g., 505) for transmitting the combined DRCLock for display in AT 500 whether AN 510 to receive information on the DRC channel (501 or 502). In addition, unused DRCLock channel on 506 can be used as a feedback channel RL for the same or different AT. Alternatively, the DRCLock channel, which does not transmit the information of the DRC may be used to transmit the same values passed on the combined DRCLock channel (and he might be called excessive DRCLock). In other words, if the AT does not transmit the DRC information on the carrier return line connection, AN can use the DRCLock channel corresponding straight line connection for transmission of redundant information. Here is the DRCLock channel is the same as the value of the DRCLock channel on another straight line, in the respective return line which the information is transferred DRC. In addition, if the AT does not transmit the DRC information on the carrier return line connection, AN can use the DRCLock channel resource in a straight line the ligature as a reverse feedback channel for the same or different AT.

For example, suppose that AT 500 appoints two (2) bearing FL (i.e. bearing "a" and "b") and two (2) bearing RL (i.e. bearing the "x" and "y"). If the report DRC for bearing "a" and "b" will be presented on only one carrier "y", the other carrier (i.e. carrier "x") is not used. Here DRC for "a" and "b" are multiplexed. After receiving information DRC, AN 510 transmits the combined DRCLock channel on the carrier "b" with the value indicating the quality of both DRCLock_a and DRCLock_b. Alternatively, AN 510 also sends redundant values DRCLock in AT 500 FL carrier "a".

As described above, the combined DRCLock channel can be expressed using a single bit. Thus, if combined DRCLock will be represented by "0", then it indicates that AN 510 may not accept the information of the DRC, while if combined DRCLock is represented by "1", then this indicates that AN 510 capable of receiving information DRC. In addition, the unused channel FL can be used to transfer excess values DRCLock.

In the above description, AT can also be a mobile station, the mobile station of the subscriber terminal, the mobile terminal and the like. In addition, AN may also be called a node, base station, base station, subscriber, a base terminal, a base station of the terminal, and the like.

For experts the and in the art it will be obvious that various modifications and changes may be made in this invention without going beyond the essence or scope of the invention. Thus, it is assumed that the present invention covers the modifications and variations of this invention provided that they are within the scope of the attached claims and their equivalents.

1. A method of transferring data between the access terminal (AT) and an access network (AN) for the purpose of feedback information in part of the channel control access to the transmission medium (MAC) in wireless communication system, comprising stages, which are:
take at at at least two pilot signal from AN at least two direct channels of traffic;
transfer of information AT the quality of the channel in AN for each of the at least two direct traffic channels on a single reverse channel traffic, and the information quality of the channel includes the desired data rate, AT which wants to receive data for each of the above-mentioned at least two direct channels of traffic, the location information indicating a location AT, or, at least, the power of each of the said at least two direct channels of traffic or the quality of each of the said at least two direct channels of traffic;
take in AT first, reverse the th link from AN via the first forward link traffic of the above, at least two direct channels of traffic, and the first feedback includes the combined information of the quality of the channel that indicates whether a single reverse channel traffic adequate quality in order'AN could take the information as a channel for the said at least two direct channels of traffic sent through AT a single reverse channel traffic; and
take in AT the second feedback information from AN on the second direct channel traffic from mentioned at least two direct channels of traffic, and the second feedback includes the combined information of the quality of the channel.

2. The method according to claim 1, in which the information of the channel quality is a management information data rate control (DRC).

3. The method according to claim 1, in which the combined information of the quality of the channel is represented by 1 bit.

4. The method according to claim 3, in which the mentioned combined information of the channel quality equal to "0", indicates that AT which AN not able to receive the information quality of a channel transmitted by the AT, a combined information of the channel quality equal to "1", indicates that AT which AN able to take the information quality of a channel transmitted through the AT.

5. The method according to claim 1, in which the combined information of the channel quality is aneerood on the basis of the quality of many reverse control channels data transfer rate.

6. The method according to claim 1, in which the aforementioned first and second direct channels of traffic, each contain the channel block control data rate (DRCLock), included as part of the channel MAC.

7. The method according to claim 1, in which the mentioned single reverse trafc channel is a control channel data rate control (DRC).

8. A method of transferring data between the access network (AN) and an access terminal (AT) for the purpose of feedback information in part of the channel control access to the data transfer medium (MAC) in wireless communication system, comprising stages where;
transfer of AN at least two of the pilot signal at at at at least two direct channels of traffic;
take in AN information channel quality of AT for each of the said at least two direct traffic channels on a single reverse channel traffic, these information quality channel includes the desired data rate, AT which wants to receive data for each of the above-mentioned at least two direct channels of traffic, the location information indicating a location AT, or, at least, the power of each of the said at least two direct channels of traffic or the quality of each of the said at least two direct channels of traffic;
passed from AN first information about atoi connection to the AT via the first forward link traffic of the above, at least two direct channels of traffic, and the first feedback includes the combined information of the quality of the channel that indicates whether a single reverse channel traffic adequate quality in order'AN could take the information as a channel for the said at least two direct channels of traffic sent through AT a single reverse channel traffic; and
passed from AN second feedback information at second direct channel traffic from the aforementioned at least two direct channels of traffic, and the second feedback includes the combined information of the channel quality.



 

Same patents:

FIELD: information technology.

SUBSTANCE: cell search is facilitated by user equipment (UE) in a wireless communication system. In one version, a primary synchronisation code (PSC) sequence may be generated based on a Frank sequence and a constant amplitude sequence which is repeated multiple times. In another version, a set of PSC sequences may be generated based on complementary sequences having good aperiodic correlation properties and efficient implementations. In another version, PSC sequences A+B and B+A may be formed based on Golay complementary sequences A and B, there "+" denotes concatenation. In yet another version, a set of secondary synchronisation code (SSC) sequences may be generated based on a set of base sequences and different modulation symbols of a modulation scheme. Each base sequence may be modulated by each of M possible modulation symbols for the modulation scheme to obtain M different SSC sequences.

EFFECT: shorter cell search time in a wireless communication system.

38 cl, 21 dwg

FIELD: information technology.

SUBSTANCE: based on the method used in a wireless communication system (WiMAX), where in order to identify a transmitter with a receiver, the most probable successful radiated power (C) is calculated in order to provide faster identification of the transmitter by the receiver, a method is disclosed which, based on the calculated radiated power, the allowable maximum (D) and allowable minimum (E) radiated power is given. In that case, at the initial moment, radiated power (G) is controlled, which is less than the calculated radiated power (C) and higher than the given allowable minimum radiated power (E). The radiated power is then increased in form of steps (F) gradually until attaining given allowable maximum radiated power (D). Upon attaining the given allowable maximum radiated power (D), the radiated power is gradually increased in form of steps (F) from the given allowable minimum radiated power (E) to the given allowable maximum radiated power and further until the transmitter is identified or when no additional operations are performed.

EFFECT: high accuracy of identifying a transmitter.

10 cl, 1 dwg

FIELD: information technology.

SUBSTANCE: device has a transmission control unit, a reception control unit, a communication channel. The transmission control unit has a binary code generator on the transmitting point, a comparator circuit, an output register, a memory device, a transmission end decoder, an address counter, five OR elements, a binary pulse generator, a first clock pulse generator, two AND elements, two flip flops. The reception control unit has a binary code generator on the receiving point, an OR element, an address counter, a memory device for the receiving point, a reception end decoder, a former, an integrating circuit, a flip flop, an AND element and a clock pulse generator.

EFFECT: reduced load on the communication channel.

2 cl, 2 dwg

FIELD: information technology.

SUBSTANCE: in a mobile communication system, having a single control channel and several common channels and having a network which periodically sends control information over the control channel, the following takes place: periodic reception of the control channel; detection of a common channel identifier in the received control channel at a defined time; and reception of data over a separate common channel which is specified by control information which includes that detected identifier.

EFFECT: minimisation of data length generated during transmission and reception of data, and minimisation of consumption of the energy of the accumulator of the mobile terminal.

18 cl, 7 dwg

FIELD: information technology.

SUBSTANCE: in a mobile communication system, having a single control channel and several common channels and having a network which periodically sends control information over the control channel, the following takes place: periodic reception of the control channel; detection of a common channel identifier in the received control channel at a defined time; and reception of data over a separate common channel which is specified by control information which includes that detected identifier.

EFFECT: minimisation of data length generated during transmission and reception of data, and minimisation of consumption of the energy of the accumulator of the mobile terminal.

18 cl, 7 dwg

FIELD: electricity.

SUBSTANCE: variable inductance coil has inductance value that can be switched between two or more values. It includes multiple-loop primary inductance coil which is electromagnetically connected to pair of secondary inductance coils. The latter are connected to each other to form closed loop within the limits of which they have variable topology switched between series and parallel connections to change inductance value, which is provided with multiple-loop primary inductance coil.

EFFECT: enlarging control range.

21 cl, 15 dwg

FIELD: information technology.

SUBSTANCE: method involves the following steps: receiving a communication efficiency parametre; if the communication efficiency parametre is equal to a predetermined value or exceeds the predetermined value, the first transmitter-receiver pair and the second transmitter-receiver pair use a predefined communication standard during communication, where determination of the predefined communication standard is carried out on the first transmitter-receiver pair and the second transmitter-receiver pair, respectively. A predefined bit table and a gain table are provided on the first transmitter-receiver pair and the second transmitter-receiver pair, respectively. According to the described method, in case of high broad-band noise, fast switching to the predefined bit table and gain table can be provided using a simple message or "request-response" mechanism. Use of this method avoids the need to exchange bit tables and gain tables.

EFFECT: avoiding wastage of channel capacity.

17 cl, 7 dwg

FIELD: information technology.

SUBSTANCE: method involves the following steps: receiving a communication efficiency parametre; if the communication efficiency parametre is equal to a predetermined value or exceeds the predetermined value, the first transmitter-receiver pair and the second transmitter-receiver pair use a predefined communication standard during communication, where determination of the predefined communication standard is carried out on the first transmitter-receiver pair and the second transmitter-receiver pair, respectively. A predefined bit table and a gain table are provided on the first transmitter-receiver pair and the second transmitter-receiver pair, respectively. According to the described method, in case of high broad-band noise, fast switching to the predefined bit table and gain table can be provided using a simple message or "request-response" mechanism. Use of this method avoids the need to exchange bit tables and gain tables.

EFFECT: avoiding wastage of channel capacity.

17 cl, 7 dwg

FIELD: information technology.

SUBSTANCE: system provides for a combination use of open loop and closed loop PSD control algorithms. The open loop control is a function of path loss from the serving cell as well as the neighbouring cells. The closed loop control updates the end node transmit PSD by listening to the load indicators from the serving cell and at least one other neighbouring non-serving cell which generates the highest level of interference.

EFFECT: faster control using with multi-cell information and low inter-cell interference.

34 cl, 34 dwg, 5 tbl

FIELD: physics.

SUBSTANCE: power limiting value indicators can be analysed when scheduling mobile devices. Mobile devices with power limitations can be scheduled for internal subbands. Other mobile devices can use the remaining part of the allocated spectrum. Additionally, mobile devices can estimate and establish the power loss coefficient of the power amplifier based on subband scheduling.

EFFECT: noise attenuation and improved performance of mobile devices.

39 cl, 13 dwg

FIELD: radio engineering; construction of radio communication, radio navigation, and control systems using broadband signals.

SUBSTANCE: proposed device depends for its operation on comparison of read-out signal with two thresholds, probability of exceeding these thresholds being enhanced during search interval with the result that search is continued. This broadband signal search device has linear part 1, matched filter 2, clock generator 19, channel selection control unit 13, inverter 12, fourth adder 15, two detectors 8, 17, two threshold comparison units 9, 18, NOT gates 16, as well as AND gate 14. Matched filter has pre-filter 3, delay line 4, n attenuators, n phase shifters, and three adders 7, 10, 11.

EFFECT: enhanced noise immunity under structural noise impact.

1 cl, 3 dwg

FIELD: radio engineering for radio communications and radar systems.

SUBSTANCE: proposed automatically tunable band filter has series-connected limiting amplifier 1, tunable band filter 2 in the form of first series-tuned circuit with capacitor whose value varies depending on voltage applied to control input, first buffer amplifier 3, parametric correcting unit 4 in the form of second series-tuned circuit incorporating variable capacitor, second buffer amplifier 5, first differential unit 6, first amplitude detector 7, first integrating device 9, and subtraction unit 9. Inverting input of subtraction unit 9 is connected to reference-voltage generator 10 and output, to control input of variable capacitors 2 and 4. Automatically tunable band filter also has series-connected second amplitude detector 11, second integrating unit 12, and threshold unit 13. Synchronous operation of this filter during reception and processing of finite-length radio pulses is ensured by synchronizer 14 whose output is connected to units 10, 8, and 12. This automatically tunable band filter also has second differential unit whose input is connected to output of buffer amplifier 3 and output, to second control input of variable capacitor of band filter 2.

EFFECT: enhanced noise immunity due to maintaining device characteristics within wide frequency range.

1 cl, 1 dwg

FIELD: radio communications engineering; mobile ground- and satellite-based communication systems.

SUBSTANCE: proposed modulator that incorporates provision for operation in single-channel mode with selected frequency modulation index m = 0.5 or m = 1.5, or in dual-channel mode at minimal frequency shift and without open-phase fault has phase-shifting voltage analyzer 1, continuous periodic signal train and clock train shaping unit 2, control voltage shaping unit 3 for switch unit 3, switch unit 3, switch unit 4, two amplitude-phase modulators 5, 6, phase shifter 7, carrier oscillator 8, and adder 9.

EFFECT: enlarged functional capabilities.

1 cl, 15 dwg

FIELD: electronic engineering.

SUBSTANCE: device has data processing circuit, transmitter, commutation unit, endec, receiver, computation unit, and control unit.

EFFECT: high reliability in transmitting data via radio channel.

4 dwg

FIELD: electronic engineering.

SUBSTANCE: method involves building unipolar pulses on each current modulating continuous information signal reading of or on each pulse or some continuous pulse sequence of modulating continuous information code group. The number of pulses, their duration, amplitude and time relations are selected from permissible approximation error of given spectral value and formed sequence parameters are modulated.

EFFECT: reduced inetrsymbol interference; high data transmission speed.

16 cl, 8 dwg

FIELD: communication system transceivers.

SUBSTANCE: transceiver 80 has digital circuit 86 for converting modulating signals into intermediate-frequency ones. Signal source 114 transmits first periodic reference signal 112 at first frequency. Direct digital synthesizer 84 receives second periodic signal 102 at second frequency from first periodic reference signal. Converter circuit affording frequency increase in digital form functions to convert and raise frequency of modulating signals into intermediate-frequency digital signals using second periodic signal 102. Digital-to-analog converter 82 converts intermediate-frequency digital signals into intermediate-frequency analog signals using first periodic reference signal 112.

EFFECT: reduced power requirement at low noise characteristics.

45 cl, 3 dwg

FIELD: radio engineering; portable composite phase-keyed signal receivers.

SUBSTANCE: proposed receiver has multiplier 4, band filter 6, demodulator 8, weighting coefficient unit 5, adding unit 7, analyzing and control unit 10, synchronizing unit 3, n pseudorandom sequence generators 21 through 2n, decoder 1, and switch unit 9. Receiver also has narrow-band noise suppression unit made in the form of transversal filter. Novelty is that this unit is transferred to correlator reference signal channel, reference signal being stationary periodic signal acting in absence of noise and having unmodulated harmonic components that can be rejected by filters of simpler design than those used for rejecting frequency band of input signal and noise mixture. Group of synchronized pseudorandom sequence generators used instead of delay line does not need in-service tuning.

EFFECT: facilitated realization of narrow-band noise suppression unit; simplified design of rejection filters.

1 cl, 8 dwg

FIELD: mobile radio communication systems.

SUBSTANCE: proposed method and device are intended to control transmission power levels for plurality of various data streams transferred from at least one base station to mobile one in mobile radio communication system. First and second data streams are transmitted from base station and received by mobile station. Power-control instruction stream is generated in mobile station in compliance with first or second data stream received. Power control signal is shaped in mobile station from first power control instruction stream and transferred to base station. Received power control instruction stream is produced from power control signal received by base station; power transmission levels of first and second data streams coming from base station are controlled in compliance with power control instruction stream received. In this way control is effected of transmission power levels of first data stream transferred from each base station out of first active set to mobile station and of transmission power levels of second data stream which is transferred from each base station out of second active set to mobile station.

EFFECT: enlarged functional capabilities.

80 cl, 21 dwg

FIELD: radio engineering.

SUBSTANCE: proposed method and device designed for fast synchronization of signal in wade-band code-division multiple access (WCDMA) system involve use of accumulations of variable-length samples, testing of decoder estimates for reliability, and concurrent decoding of plurality of sync signals in PERCH channel. Receiver accumulates samples required for reliable estimation of time interval synchronization. As long as time interval synchronization estimates have not passed reliability tests, samples are accumulated for frame synchronization estimates. As long as frame synchronization estimates have not passed reliability tests, samples are analyzed to determine channel pilot signal shift.

EFFECT: reduced time for pulling into synchronism.

13 cl, 9 dwg

FIELD: satellite navigation systems and may be used at construction of imitators of signals of satellite navigational system GLONASS and pseudo-satellites.

SUBSTANCE: for this purpose two oscillators of a lettered frequency and of a fixed frequency are used. Mode includes successive fulfillment of the following operations - generation of a stabilized lettered frequency, its multiplication with an oscillator's fixed frequency and filtration of lateral multipliers with means of filters of L1 and L2 ranges and corresponding option of a fixed and a lettered frequencies.

EFFECT: reduces phase noise and ensures synthesizing of lettered frequencies of L1 and L2 ranges of satellite navigational system from one supporting generator at minimum number of analogous super high frequency units.

3 cl, 1 dwg

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