WO2010115311A1 - Method and base station for transmitting high speed dedicated physical control channel - Google Patents

Method and base station for transmitting high speed dedicated physical control channel Download PDF

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Publication number
WO2010115311A1
WO2010115311A1 PCT/CN2009/071228 CN2009071228W WO2010115311A1 WO 2010115311 A1 WO2010115311 A1 WO 2010115311A1 CN 2009071228 W CN2009071228 W CN 2009071228W WO 2010115311 A1 WO2010115311 A1 WO 2010115311A1
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Prior art keywords
dpcch
code
ack
cqi
nack
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PCT/CN2009/071228
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French (fr)
Chinese (zh)
Inventor
刘铮
范叔炬
韩重阳
马雪利
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华为技术有限公司
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Priority to PCT/CN2009/071228 priority Critical patent/WO2010115311A1/en
Publication of WO2010115311A1 publication Critical patent/WO2010115311A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H04L1/0031—Multiple signaling transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0044—OVSF [orthogonal variable spreading factor]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements

Definitions

  • the present invention relates to the field of communications, and in particular, to a high speed dedicated physical control channel for transmission
  • HS-DPCCH High Speed Dedicated Physical Control Channel
  • the uplink multi-antenna technology of the Wideband Code Division Multiple Access (WCDMA) system is a new topic recently proposed. Data streams on different carriers can be viewed as data streams similar to multiple antennas.
  • the multi-carrier uplink requires at least two HS-DPCCH channels to carry feedback information of the uplink physical layer and transmit necessary control information.
  • the newly added HS-DPCCH channel in the multi-carrier mode of the WCDMA system is different from the single-carrier mode in the code channel number allocation and the spreading code, and the C-channel (256, 32) I channel of the spreading factor of 256 is used.
  • the Q path is the same as the spreading code channel of the two HS-DPCCHs, and is the same in the coding format and timing as the single carrier mode.
  • the correct response/incorrect response (ACK/NACK,
  • the minimum code distance of the Acknowledgement/No Acknowledgement codebook is usually 4.
  • the technical problem to be solved by the embodiments of the present invention is to provide a method and a base station for transmitting a high-speed dedicated physical control channel, which can reduce channel interference levels, expand signal coverage in multi-carrier mode, and save uplink code resources.
  • a method for transmitting a high speed dedicated physical control channel HS-DPCCH comprising:
  • the base station transmits an HS-DPCCH to the user equipment, and the HS-DPCCH carries acknowledgement/non-acknowledgement ACK/NACK and channel quality indicator (CQI, Channel Quality) of at least two uplink carriers.
  • CQI channel quality indicator
  • Indicator, the ACK/NACK and the CQI of the at least two uplink carriers are respectively jointly coded;
  • the spreading factor of the Orthogonal Variable Spreading Factor (OVSF) code of the HS-DPCCH is 128; the ACK/NACK occupies one time slot in a 2 msec frame of the HS-DPCCH, The number of symbols of one ACK/NACK slot is 20; the CQI of the 2 ms frame of the HS-DPCCH occupies two slots, and the number of symbols of the two CQI slots is 40.
  • OVSF Orthogonal Variable Spreading Factor
  • a method for transmitting a high speed dedicated physical control channel HS-DPCCH comprising:
  • the base station transmits an HS-DPCCH to the user equipment, the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK and CQI of the at least two uplink carriers. Joint coding is performed separately;
  • the spreading factor of the orthogonal variable spreading factor OVSF code of the HS-DPCCH is 256; the ACK/NACK of a 2 ms frame of the HS-DPCCH occupies one time slot, and the one ACK/NACK time slot The number of symbols is 10; the CQI of the 2 ms frame of the HS-DPCCH occupies two slots, and the number of symbols of the two CQI slots is 20; the ACK/NACK adopts a quadrature phase shift modulation mode Make modulation.
  • a base station comprising:
  • a sending unit configured to transmit an HS-DPCCH to the user equipment, where the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK and CQI of the at least two uplink carriers are respectively combined Coding;
  • the spreading factor of the OVSF code of the HS-DPCCH is 128; the ACK/NACK of one slot of the HS-DPCCH occupies one slot, and the number of symbols of the one ACK/NACK slot is 20; In a 2 millisecond frame of the HS-DPCCH, the CQI occupies two time slots, and the number of symbols of the two CQI time slots is 40.
  • a base station comprising:
  • a sending unit configured to transmit an HS-DPCCH to the user equipment, where the HS-DPCCH Carrying ACK/NACK and CQI of at least two uplink carriers, where ACK/NACK and CQI of the at least two uplink carriers are jointly coded;
  • the spreading factor of the OVSF code of the HS-DPCCH is 256; the ACK/NACK of one slot of the HS-DPCCH occupies one slot, and the number of symbols of the one ACK/NACK slot is 10; In a 2 ms frame of the HS-DPCCH, the CQI occupies two slots, and the number of symbols of the two CQI slots is 20; the ACK/NACK is modulated by a quadrature phase shift modulation.
  • the embodiment of the present invention jointly encodes a multi-antenna data stream indicating two carriers by using one HS-DPCCH, and sets a spreading factor of the OVSF code of the HS-DPCCH channel to 128 or 256, By using one channel to carry feedback control information of two or more carriers, the channel interference level can be reduced, and the signal coverage in the multi-carrier mode can be expanded.
  • FIG. 1 is a schematic structural diagram of an HS-DPCCH frame with a transmission time interval of 2 ms according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for transmitting an HS-DPCCH frame according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic diagram of a CQI codebook Reed Muller encoding process according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a Viterbi encoding process of a CQI codebook according to an embodiment of the present invention
  • Figure 5 is a schematic diagram of a convolutional code encoding process using a 1/3 code rate or a 1/2 code rate in an embodiment of the present invention.
  • the HS-DPCCH frame structure includes two parts: ACK/NACK and Channel Quality Indicator (CQI).
  • the ACK/NACK codebook is an arrangement of eight lObit coded sequences, as shown in Table 1 below:
  • the base station transmits an HS-DPCCH to the user equipment, where the HS-DPCCH carries an acknowledgement/non-acknowledgement acknowledgement ACK/NACK and a channel quality indicator CQI of at least two uplink carriers, the at least two The ACK/NACK and CQI of the uplink carriers are jointly coded respectively;
  • the spreading factor of the orthogonal variable spreading factor (OVSF) code of the HS-DPCCH is 128; ACK/NACK occupies one time slot in a 2 ms frame of the HS-DPCCH, and the ACK/NACK is used The number of symbols of the slot is 20; the CQI of the 2 ms frame of the HS-DPCCH occupies two slots, and the number of symbols of the two CQI slots is 40.
  • OVSF orthogonal variable spreading factor
  • a multi-antenna data stream indicating two carriers is jointly coded by one HS-DPCCH, for example, four data streams of two antennas on two carriers, and the HS-DPCCH channel can be used.
  • the spreading factor of the OVSF code is set to 128, and the specific format of the obtained HS-DPCCH frame with a transmission time interval (TTI) of 2 ms is as shown in FIG. 1.
  • TTI transmission time interval
  • the HSDPA uses the 2 ms TTI to greatly reduce the round trip time of the HARQ process and improve the round trip time of the HARQ process.
  • Quick scheduling response capability The system allocates resources to the user according to the size of the spreading factor. The larger the value of the spreading factor, the smaller the bandwidth provided by the system to the user.
  • the frame used in the present invention is different from the frame used in the prior art in that, in the prior art, when the spreading factor is 256, the number of symbols occupied by one ACK slot is 10 information bits, and the symbols occupied by two CQI slots are used.
  • the number is 20 information bits; in the following embodiments 2 and 3 of the present invention, the spreading factor is reduced to 128, the number of symbols occupied by one ACK slot is 20 information bits, and the number of symbols occupied by two CQI slots is 40 information bits.
  • the spreading factor is reduced from 256 to 128, the information symbols that can be carried in each time slot are increased, and the number of information symbols is increased from 10 to 20.
  • the code distance can be increased. After the code distance is increased, the coding gain can be obtained.
  • a multi-antenna data stream indicating two carriers is jointly coded by one HS-DPCCH, and the spreading factor of the OVSF code of the HS-DPCCH channel is set to 128, and one channel can be used to carry two or more channels.
  • the feedback control information of the carrier can reduce the channel interference level and expand the signal coverage in the multi-carrier mode.
  • the second embodiment and the third embodiment of the present invention are implemented on the basis that the spreading factor is set to 128, and can be applied to multiple carriers such as two carriers, three carriers, and four carriers.
  • the following embodiments only use two carriers. The example is explained.
  • FIG. 2 is a schematic flowchart of a method for transmitting an HS-DPCCH frame according to an embodiment.
  • Step 201 The ACK joint coding codebook of at least two carriers encodes an ACK/NACK codeword, and the ACK joint codebook aims to minimize the minimum retransmission cost of the uplink, and follows the minimum code interval maximum of the coding sequence and the average code of the coding sequence. The maximum constraint.
  • the ACK joint coding codebook of at least two carriers is targeted at a higher layer, that is, a radio link control (RLC) layer retransmission cost minimum, and the minimum code distance of the coding sequence is the largest and the average code distance of the coding sequence is the largest.
  • RLC radio link control
  • the ACK codebook follows the above principles, and can use pairs of signals with opposite carrier signals. Inverse, to maximize the codeword distance between signals that have opposite effects.
  • the ACK-ACK signal and the NACK-NACK are signals indicating that the two carriers are completely opposite.
  • the code distance between them is the largest, the error probability that the ACK-ACK is misinterpreted into NACK-NACK is the smallest, so the error cost of the system. It is also the smallest.
  • the minimum code interval of the code sequence with a code length of 20 is 10, and the redesigned ACK codebook can be as shown in Table 2 below.
  • Al ⁇ A6, CI ⁇ C6 of Table 2 indicate 12 lines.
  • the code with the minimum distance between the two is 10, Bl ⁇ B6 indicates the inverse of Al ⁇ A6, and D1 ⁇ D6 indicates the inverse of CI ⁇ C6. They form an indication of up to 24 combinations of states in the dual-carrier multi-antenna scene.
  • Al ⁇ A6, Bl ⁇ B6, C1 ⁇ C6, Dl ⁇ D6 are just a specific codeword embodiment of 24 kinds of 4 non-column combined states.
  • the scope of protection of the present invention includes all codewords calculated after conversion according to Table 1 and Table 1;
  • Table 1 transformation may be any column inversion of Table 1 (ie, 1 and 0 are mutually inverted); Any two columns are interchanged (for example, the first column is changed to the position of the fourth column, and the fourth column is changed to the position of the first column).
  • the two carriers on the two channels may be: two single stream (single stream), two dual stream carriers (dual stream), or one single stream carrier and one dual stream carrier.
  • the detection spaces of various combined states are as follows: Show, where DTX is discontinuous (Discontinuos Transmit):
  • Table 5 Carrier 1 dual stream, carrier 2 single stream codeword mapping combination
  • the corresponding codeword is D2 ⁇ J of Table 2, and the corresponding ⁇ / ⁇ 'J is 00111110001100000111.
  • the code of D2 is C2
  • C2 in Table 3 corresponds to the single-flow NACK-NACK
  • the corresponding codeword is as the C2 column of Table 2
  • the corresponding sequence ⁇ 'J is 11000001110011111000
  • the inverse code ensures the opposite signal The maximum codeword distance between them is small, and the probability of system error is small.
  • Al ⁇ A6, CI ⁇ C6 is only a specific embodiment selected in the vector of Table 1, the HARQ-ACK mapping method in the actual application case may be Al ⁇ A6, CI ⁇ C6 12 code words Any two or two interchanges (of course, the corresponding inverse codes are also interchanged) do not affect the implementation of the embodiments of the present invention.
  • Step 202 Jointly encode a codebook-coded CQI codeword according to a channel quality indicator CQI of at least two carriers, where the CQI joint codebook has a maximum minimum code-length of the code sequence, and an average code-length of the code sequence is a constraint condition. Or aiming at the maximum code distance of the coding sequence, the coding sequence The minimum code distance is the maximum constraint. For example, it may be a codebook having a minimum code interval of a coding sequence and an average code interval of the coding sequence.
  • the CQI codebook of at least two carriers of the spreading factor 128 may be a repetition of a MIMO (Multiple Input Multiple Output) codebook of a spreading factor of 256, that is, 20 of the second time slot of the HS-DPCCH
  • the symbols indicate multi-antenna data blocks of one carrier, and the 20 symbols of the third time slot indicate multi-antenna data blocks of another carrier.
  • the CQI of two carriers is carried by using a single HS-DPCCH channel, and either the RM coding mode of (40, 20) or the RM coding mode of (20, 10) mentioned above can be used.
  • An encoding codebook used in CQI joint coding is shown in Table 7:
  • the coding process diagram is shown in Figure 3.
  • the precoding indication (PCI, Precoding coding Indicator) is binary converted (binary mapping) to obtain pci 0 and pcii, ⁇ type (Type A) or B type (Type B) CQI is binary converted. Get cqi. , cq ⁇ to cqi 7 or To cqi. , . ⁇ 1 to 091 1 , and combine the obtained data to obtain a. , & 1 to & 9 or get & 0 , ai - .
  • the RM encoding method of (20, 10) is adopted, and the encoded codeword output is:
  • Step 203 Combine the ACK codeword and the CQI codeword to obtain a frame.
  • the combination may be to place the 20 symbols of the ACK codeword in the first time slot of the 2ms subframe, and place the 20 symbols of the CQI codeword in the second and third time slots of the 2ms subframe.
  • Step 204 Select a code channel to send the frame.
  • the selection of the new spread spectrum track should follow the principle of minimum CM value and be orthogonal to the existing uplink dedicated link OVSF code channel, which can reduce the energy loss of the RF signal in the power amplifier and improve the working efficiency of the power amplifier.
  • the code channel of the jointly coded HS-DPCCH may be selected as Cch, 128, x; where Cch refers to the spreading factor and code channel number of the physical channel allocation, 128 is the spreading factor, and the code channel number is X.
  • the spreading factor is 128, the HS-DPCCH is modulated by Binary Phase Shift Keying (BPSK), and x can be a positive integer between 1 and 64, including but not limited to 1, 2, 3, 4, 5, 7, 8, 9, 15, 16, 15, 32, 33, 63, 64.
  • BPSK Binary Phase Shift Keying
  • the joint coding mode of the single HS-DPCCH of the spreading factor 128 can also be applied to three carriers, four carriers, five carriers, and six carriers, without affecting the implementation of the embodiment of the present invention.
  • the energy of the I channel signal is large, and the joint coded HS-DPCCH channel is mapped to the Q path, and the CM value is smaller than the CM value mapped to the I path.
  • the HS-DPCCH frame of the multi-carrier mode is jointly coded, wherein the spreading factor is set to 128, so that one channel carries feedback control information of two or more carriers, thereby reducing the channel interference level. Expand signal coverage in multi-carrier mode and save upstream code resources.
  • the joint coding design of the CQI codebook in the second embodiment of the present invention may also adopt an absolute grant channel or a 1/2 code rate, which is described in detail in the following third embodiment.
  • the Xth carrier is represented by Cellx, X cellu , X celll .2 to Xcdll.10 or X ce 112.1 , X Ce 112.2 to X ce ii2.i. After multiplexing (Multiplexing), yy 2 is obtained. , will yy 2 to.
  • rate matching algorithm After channel encoding (Channel coding) obtained after Zl, z 2 - z after 84 Total 84 encoded bits, rate matching algorithm, bit ZZ 2, Z 5, Z 6 , Z 7, Z n, Z 17, Z 24 , Z 31 , Z 37 , Z44 , Z 47 , Z 50 , Z 52 , Z55 , z 56 are punctured to obtain 40-bit output sequences ri , r 2 to r 4() .
  • the rate matching algorithm can be used according to the existing The rules in the technique are carried out, and ri , r 2 to r 4() are mapped by physical channel to obtain CQI.
  • the coding method of the convolutional code can be performed at a rate of 1/3 code rate or 1/2 code rate.
  • the specific process is shown in FIG. 5, wherein FIG. 5(a) is a coding diagram using a 1/2 code rate, and FIG. 5 (b) ) is a coding scheme using 1/3 code rate.
  • the coding rate of the convolutional code is chosen to be 1/3
  • the coding rate is chosen to be 1/2.
  • Convolutional coding is a channel coding. It is mainly used to correct random errors of codewords. It sacrifices efficiency for reliability, and uses supervised bits to perform error detection and error correction.
  • the HS-DPCCH frame in the multi-carrier mode is jointly coded, and the Viterbi coding mode is adopted for the CQI, so that the feedback control information of two or more carriers can be carried by using one channel, thereby reducing the channel interference level. Expand signal coverage in multi-carrier mode and save upstream code resources.
  • the following embodiment 4 details the HS-DPCCH joint coded stream when the spreading factor is 256. Cheng.
  • the ACK/NACK part of the HS-DPCCH joint coding adopts Quadrature Phase Keying (QPSK).
  • QPSK Quadrature Phase Keying
  • the codebook can still use the ACK/NACK codebook shown in Table 2 in Embodiment 2, and the selection principle is also the highest retransmission cost of the upper layer (RLC, Radio Link Control layer), and the minimum code distance of the code sequence is the largest.
  • the constraint and the average code distance of the coding sequence are the largest constraints. In the code sequence with a code length of 20, it is ensured that the selected minimum code distance between the code words indicating the state of the data stream under the multi-carrier multi-antenna is 10, and a pair of inverted codes appear.
  • the coding of the CQI codebook may be performed by using the RM coding mode or the (40, 20) RM coding mode repeated in different time slot periods in the second embodiment (20, 10), or the Viterbi convolutional coding method in the third embodiment may be used for CQI. Joint coding of codebooks.
  • the HS-DPCCH new QPSK modulated spreading code channel should be selected to follow the principle of minimum CM value and be orthogonal to the existing uplink dedicated link OVSF code channel.
  • the code channel selection of the joint-coded HS-DPCCH is Cch, 256, ⁇ , and x is a positive integer between 1 and 64, including but not limited to 32, 33.
  • one channel carries the feedback control information of two or more carriers, thereby reducing the channel interference level. Expand signal coverage in multi-carrier mode and save upstream code resources.
  • the above embodiment provides a method of transmitting an HS-DPCCH, and an embodiment of the present invention further provides a base station.
  • a base station comprising: a sending unit, configured to transmit an HS-DPCCH to a user equipment, where the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK of the at least two uplink carriers CQI is jointly coded separately;
  • the spreading factor of the OVSF code of the HS-DPCCH is 128; one of the HS-DPCCH
  • the ACK/NACK occupies one slot in a 2 millisecond frame, the number of symbols of the one ACK/NACK slot is 20; the CQI of the 2 ms frame of the HS-DPCCH occupies two slots, the two CQIs
  • the number of symbols in the slot is 40.
  • the codebook for joint coding of ACK/NACK is a codebook that minimizes the cost of high-layer retransmission, has the smallest minimum code interval of the coding sequence, and has the largest average code distance of the coding sequence; and can perform two ACK/NACKs with opposite opposite effects on the carrier.
  • the signals use a pair of inverse codes, which makes the code distance between them the largest and the probability of being misinterpreted the smallest.
  • the codebook jointly coded for CQI is the codebook with the smallest minimum code distance of the coding sequence and the largest average code distance of the coding sequence.
  • the joint coding of the CQI codebook may be performed by using the Reed Muller coding method of (40, 20) or the Reed Muller coding mode of (20, 10), and the latter may be repeated twice in two slot cycles to reach the sum (40, 20) The same effect of RM encoding.
  • the joint encoding of the CQI may be performed by using the Viterbi coding method, and the implementation of the embodiment of the present invention is not affected by using the 1/3 code rate or the 1/2 code rate.
  • the transmitting unit selects the code channel to transmit the HS-DPCCH, and can follow the principle that the CM value is the smallest, and is orthogonal to the existing uplink dedicated link OVSF code channel.
  • the joint coding mode of the single HS-DPCCH of the spreading factor 128 can also be applied to the scenario of three carriers, four carriers, five carriers, and six carriers, which does not affect the implementation of the embodiment of the present invention.
  • Another base station includes a sending unit, configured to transmit an HS-DPCCH to the user equipment, where the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK of the at least two uplink carriers Joint coding with CQI;
  • the spreading factor of the OVSF code of the HS-DPCCH is 256; the ACK/NACK is modulated by a quadrature phase shift modulation. In this way, feedback control information of two or more carriers can also be carried by one channel to expand the signal coverage in the multi-carrier mode.
  • the method and the base station according to the embodiment of the present invention jointly encode the HS-DPCCH frame in the multi-carrier mode, so that one channel can be used to carry feedback control information of two or more carriers, thereby reducing the CM value and expanding the multi-carrier. Signal coverage in mode.
  • the modules of the device in the embodiment of the present invention may be integrated into one or may be separately deployed.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • the program may be implemented by a computer program to instruct related hardware, and the program may be stored in a computer readable storage medium, which, when executed, may include the flow of an embodiment of the methods described above.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

A method and base station for transmitting High Speed Dedicated Physical Control Channel HS-DPCCH are provided. The method comprises: in the uplink multiple carriers of the WCDMA system, the base station transmits an HS-DPCCH to the user equipment; the HS-DPCCH bears the Acknowledgement/No Acknowledgement ACK/NACK and the Channel Quality Indicator CQI of at least two uplink carriers; the ACK/NACK and the CQI of at least two uplink carriers are performed combined encoding respectively; wherein, the spreading factor of the Orthogonal Variable Spreading Factor OVSF of the HS-DPCCH is 128; in a 2 milliseconds frame of the HS-DPCCH the ACK/NACK takes one timeslot, and the symbol number of one ACK/NACK timeslot is 20; in a 2 milliseconds frame of the HS-DPCCH the CQI takes two timeslots, and the symbol number of two CQI timeslots is 40.

Description

一种传输高速专用物理控制信道的方法及基站  Method and base station for transmitting high-speed dedicated physical control channel
技术领域 Technical field
本发明涉及通信领域， 尤其是涉及一种传输高速专用物理控制信道 The present invention relates to the field of communications, and in particular, to a high speed dedicated physical control channel for transmission
( HS-DPCCH, High Speed Dedicated Physical Control Channel )的方法及基站。 (HS-DPCCH, High Speed Dedicated Physical Control Channel) method and base station.
背景技术 Background technique
宽带码分多址（ WCDMA, Wideband Code Division Multiple Access ) *** 的上行多天线技术是近期提出的新课题。不同载波上的数据流可以看成和多天 线类似的数据流。 这样， 在高速分组接入（HSPA, high speed packet access ) 技术中 , 多载波的上行链路就需要至少两个 HS-DPCCH信道承载上行链路物 理层的反馈信息， 并传输必要的控制信息。  The uplink multi-antenna technology of the Wideband Code Division Multiple Access (WCDMA) system is a new topic recently proposed. Data streams on different carriers can be viewed as data streams similar to multiple antennas. Thus, in the high speed packet access (HSPA) technology, the multi-carrier uplink requires at least two HS-DPCCH channels to carry feedback information of the uplink physical layer and transmit necessary control information.
目前， WCDMA***多载波模式下新增的 HS-DPCCH信道除了在码道数 量分配以及扩频码上与单载波模式有所不同，采用扩频因子 256的 Cch(256，32) 的 I路和 Q路作为两个 HS-DPCCH的扩频码道外， 在编码格式和时序上和单 载波模式的相同， 其中， 在码长为 20 的编码序列中， 正确应答 /不正确应答 ( ACK/NACK, Acknowledgement/No Acknowledgement )码本的最小码距通常 为 4。  At present, the newly added HS-DPCCH channel in the multi-carrier mode of the WCDMA system is different from the single-carrier mode in the code channel number allocation and the spreading code, and the C-channel (256, 32) I channel of the spreading factor of 256 is used. The Q path is the same as the spreading code channel of the two HS-DPCCHs, and is the same in the coding format and timing as the single carrier mode. Among them, in the code sequence with a code length of 20, the correct response/incorrect response (ACK/NACK, The minimum code distance of the Acknowledgement/No Acknowledgement codebook is usually 4.
在对现有技术的研究和实践过程中 , 本发明的发明人发现存在以下问题： 在多载波模式的两个 HS-DPCCH信道上同时发射信号时 , 发射功率增大 , 射频信号按照麦克劳林展开时三阶项前的系数一立方度量 （CM , Cubic Metrics )值增大。 因 CM值反映的是一种干扰水平， 功率放大器对这一部分信 号的放大不会增强信号本身， 只会增强对信号自身的干扰， 因此 CM值增大， 使得射频信号在通过功率放大器后的效率降低，从而降低了多载波模式下的信 号覆盖范围。  In the research and practice of the prior art, the inventors of the present invention found that the following problems exist: When signals are simultaneously transmitted on two HS-DPCCH channels in a multi-carrier mode, the transmission power is increased, and the radio frequency signal is according to McLaughlin. The value of the coefficient-cubic Metrics (CM, Cubic Metrics) before the third-order term increases. Since the CM value reflects an interference level, the amplification of the signal by the power amplifier does not enhance the signal itself, but only enhances the interference to the signal itself, so the CM value increases, so that the efficiency of the RF signal after passing through the power amplifier. Reduced, thereby reducing signal coverage in multi-carrier mode.
发明内容 Summary of the invention
本发明实施例要解决的技术问题是提供一种传输高速专用物理控制信道 的方法及基站， 可减小信道干扰水平， 扩大多载波模式下的信号覆盖范围， 并 可以节省上行码资源。  The technical problem to be solved by the embodiments of the present invention is to provide a method and a base station for transmitting a high-speed dedicated physical control channel, which can reduce channel interference levels, expand signal coverage in multi-carrier mode, and save uplink code resources.
为解决上述技术问题， 本发明所提供的实施例是通过以下技术方案实现 的： 一种传输高速专用物理控制信道 HS-DPCCH的方法， 包括： To solve the above technical problem, the embodiment provided by the present invention is implemented by the following technical solutions: A method for transmitting a high speed dedicated physical control channel HS-DPCCH, comprising:
在 WCDMA***的上行多载波中，基站向用户设备传输一个 HS-DPCCH, 所述 HS-DPCCH承载至少两个上行载波的确认应答 /非确认应答 ACK/NACK 和信道质量指示因子 （CQI, Channel Quality Indicator ) , 所述至少两个上行 载波的 ACK/NACK和 CQI分别进行了联合编码； 其中，  In the uplink multi-carrier of the WCDMA system, the base station transmits an HS-DPCCH to the user equipment, and the HS-DPCCH carries acknowledgement/non-acknowledgement ACK/NACK and channel quality indicator (CQI, Channel Quality) of at least two uplink carriers. Indicator, the ACK/NACK and the CQI of the at least two uplink carriers are respectively jointly coded;
所述 HS-DPCCH 的正交可变扩频因子 （OVSF , Orthogonal Variable Spreading Factor )码的扩频因子为 128; 所述 HS-DPCCH的一个 2毫秒帧中 ACK/NACK占用一个时隙， 所述一个 ACK/NACK时隙的符号个数为 20; 所 述 HS-DPCCH的一个 2毫秒帧中 CQI占用两个时隙，所述两个 CQI时隙的符 号个数为 40。  The spreading factor of the Orthogonal Variable Spreading Factor (OVSF) code of the HS-DPCCH is 128; the ACK/NACK occupies one time slot in a 2 msec frame of the HS-DPCCH, The number of symbols of one ACK/NACK slot is 20; the CQI of the 2 ms frame of the HS-DPCCH occupies two slots, and the number of symbols of the two CQI slots is 40.
一种传输高速专用物理控制信道 HS-DPCCH的方法， 包括：  A method for transmitting a high speed dedicated physical control channel HS-DPCCH, comprising:
在 WCDMA***的上行多载波中，基站向用户设备传输一个 HS-DPCCH, 所述 HS-DPCCH 载至少两个上行载波的 ACK/NACK和 CQI, 所述至少两 个上行载波的 ACK/NACK和 CQI分别进行了联合编码； 其中，  In the uplink multi-carrier of the WCDMA system, the base station transmits an HS-DPCCH to the user equipment, the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK and CQI of the at least two uplink carriers. Joint coding is performed separately;
所述 HS-DPCCH的正交可变扩频因子 OVSF码的扩频因子为 256; 所述 HS-DPCCH 的一个 2 毫秒帧中 ACK/NACK 占用一个时隙， 所述一个 ACK/NACK时隙的符号个数为 10; 所述 HS-DPCCH的一个 2毫秒帧中 CQI 占用两个时隙， 所述两个 CQI时隙的符号个数为 20; 所述 ACK/NACK采用 正交相移调制方式进行调制。  The spreading factor of the orthogonal variable spreading factor OVSF code of the HS-DPCCH is 256; the ACK/NACK of a 2 ms frame of the HS-DPCCH occupies one time slot, and the one ACK/NACK time slot The number of symbols is 10; the CQI of the 2 ms frame of the HS-DPCCH occupies two slots, and the number of symbols of the two CQI slots is 20; the ACK/NACK adopts a quadrature phase shift modulation mode Make modulation.
一种基站， 包括：  A base station comprising:
一个发送单元， 用于向用户设备传输一个 HS-DPCCH, 所述 HS-DPCCH 承载至少两个上行载波的 ACK/NACK 和 CQI, 所述至少两个上行载波的 ACK/NACK和 CQI分别进行了联合编码； 其中，  a sending unit, configured to transmit an HS-DPCCH to the user equipment, where the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK and CQI of the at least two uplink carriers are respectively combined Coding;
所述 HS-DPCCH的 OVSF码的扩频因子为 128; 所述 HS-DPCCH的一个 2毫秒帧中 ACK/NACK占用一个时隙， 所述一个 ACK/NACK时隙的符号个 数为 20; 所述 HS-DPCCH的一个 2毫秒帧中 CQI占用两个时隙， 所述两个 CQI时隙的符号个数为 40。  The spreading factor of the OVSF code of the HS-DPCCH is 128; the ACK/NACK of one slot of the HS-DPCCH occupies one slot, and the number of symbols of the one ACK/NACK slot is 20; In a 2 millisecond frame of the HS-DPCCH, the CQI occupies two time slots, and the number of symbols of the two CQI time slots is 40.
一种基站， 包括：  A base station comprising:
一个发送单元， 用于向用户设备传输一个 HS-DPCCH,， 所述 HS-DPCCH 承载至少两个上行载波的 ACK/NACK 和 CQI, 所述至少两个上行载波的 ACK/NACK和 CQI分别进行了联合编码； 其中， a sending unit, configured to transmit an HS-DPCCH to the user equipment, where the HS-DPCCH Carrying ACK/NACK and CQI of at least two uplink carriers, where ACK/NACK and CQI of the at least two uplink carriers are jointly coded;
所述 HS-DPCCH的 OVSF码的扩频因子为 256 ； 所述 HS-DPCCH的一 个 2毫秒帧中 ACK/NACK占用一个时隙 , 所述一个 ACK/NACK时隙的符号 个数为 10; 所述 HS-DPCCH的一个 2毫秒帧中 CQI占用两个时隙， 所述两个 CQI时隙的符号个数为 20;所述 ACK/NACK采用正交相移调制方式进行调制。  The spreading factor of the OVSF code of the HS-DPCCH is 256; the ACK/NACK of one slot of the HS-DPCCH occupies one slot, and the number of symbols of the one ACK/NACK slot is 10; In a 2 ms frame of the HS-DPCCH, the CQI occupies two slots, and the number of symbols of the two CQI slots is 20; the ACK/NACK is modulated by a quadrature phase shift modulation.
由上述技术方案可以看出， 本发明实施例通过一个 HS-DPCCH联合编码 指示两个载波的多天线数据流， 并将 HS-DPCCH信道的 OVSF码的扩频因子 设置为 128或者 256, 则可以使用一个信道承载两个或多个载波的反馈控制信 息， 则可减小信道干扰水平， 扩大多载波模式下的信号覆盖范围。  It can be seen from the foregoing technical solution that the embodiment of the present invention jointly encodes a multi-antenna data stream indicating two carriers by using one HS-DPCCH, and sets a spreading factor of the OVSF code of the HS-DPCCH channel to 128 or 256, By using one channel to carry feedback control information of two or more carriers, the channel interference level can be reduced, and the signal coverage in the multi-carrier mode can be expanded.
附图说明 DRAWINGS
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所 需要使用的附图作简单地介绍，显而易见地， 下面描述中的附图仅仅是本发明 的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。  In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.
图 1是本发明实施例一传输时间间隔为 2ms的 HS-DPCCH帧的结构示意 图；  1 is a schematic structural diagram of an HS-DPCCH frame with a transmission time interval of 2 ms according to an embodiment of the present invention;
图 2是本发明实施例二传输 HS-DPCCH帧的方法流程示意图；  2 is a schematic flowchart of a method for transmitting an HS-DPCCH frame according to Embodiment 2 of the present invention;
图 3是本发明实施例 CQI码本 Reed Muller编码过程示意图；  3 is a schematic diagram of a CQI codebook Reed Muller encoding process according to an embodiment of the present invention;
图 4是本发明实施例 CQI码本 Viterbi编码过程示意图；  4 is a schematic diagram of a Viterbi encoding process of a CQI codebook according to an embodiment of the present invention;
图 5是本发明实施例采用 1/3码率或者 1/2码率进行卷积码编码过程示意 图。  Figure 5 is a schematic diagram of a convolutional code encoding process using a 1/3 code rate or a 1/2 code rate in an embodiment of the present invention.
具体实施方式 detailed description
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清 楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是 全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造 性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。  BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.
HS-DPCCH帧结构包括 ACK/NACK和信道质量指示因子（ CQI ) 两个部 现有技术中 ACK/NACK编码码本是 8个 lObit编码后序列的排列组合， 如下表 1所示： The HS-DPCCH frame structure includes two parts: ACK/NACK and Channel Quality Indicator (CQI). In the prior art, the ACK/NACK codebook is an arrangement of eight lObit coded sequences, as shown in Table 1 below:
表 1  Table 1
Figure imgf000006_0001
Figure imgf000006_0001
以下对本发明实施例进行详细阐述。  The embodiments of the present invention are described in detail below.
实施例一、  Embodiment 1
在上行多载波 WCDMA***中， 基站向用户设备传输一个 HS-DPCCH, 所述 HS-DPCCH承载至少两个上行载波的确认应答 /非确认应答 ACK/NACK 和信道质量指示因子 CQI,所述至少两个上行载波的 ACK/NACK和 CQI分别 进行了联合编码； 其中，  In an uplink multi-carrier WCDMA system, the base station transmits an HS-DPCCH to the user equipment, where the HS-DPCCH carries an acknowledgement/non-acknowledgement acknowledgement ACK/NACK and a channel quality indicator CQI of at least two uplink carriers, the at least two The ACK/NACK and CQI of the uplink carriers are jointly coded respectively;
所述 HS-DPCCH的正交可变扩频因子（OVSF )码的扩频因子为 128; 所 述 HS-DPCCH 的一个 2 毫秒帧中 ACK/NACK 占用一个时隙， 所述一个 ACK/NACK时隙的符号个数为 20; 所述 HS-DPCCH的一个 2毫秒帧中 CQI 占用两个时隙， 所述两个 CQI时隙的符号个数为 40。  The spreading factor of the orthogonal variable spreading factor (OVSF) code of the HS-DPCCH is 128; ACK/NACK occupies one time slot in a 2 ms frame of the HS-DPCCH, and the ACK/NACK is used The number of symbols of the slot is 20; the CQI of the 2 ms frame of the HS-DPCCH occupies two slots, and the number of symbols of the two CQI slots is 40.
本发明实施例中， 通过一个 HS-DPCCH联合编码指示两个载波的多天线 数据流， 例如两个载波上两根天线的 4个数据流， 并且可将 HS-DPCCH信道 的 OVSF码的扩频因子设置为 128, 得到的传输时间间隔（TTI ) 为 2ms 的 HS-DPCCH帧的具体格式如图 1所示， HSDPA使用 2ms TTI可以大大减小 HARQ进程的往返时间，提高快速调度响应能力。 ***根据扩频因子的大小给 用户分配资源， 扩频因子数值越大， ***给该用户提供的带宽越小。 In the embodiment of the present invention, a multi-antenna data stream indicating two carriers is jointly coded by one HS-DPCCH, for example, four data streams of two antennas on two carriers, and the HS-DPCCH channel can be used. The spreading factor of the OVSF code is set to 128, and the specific format of the obtained HS-DPCCH frame with a transmission time interval (TTI) of 2 ms is as shown in FIG. 1. The HSDPA uses the 2 ms TTI to greatly reduce the round trip time of the HARQ process and improve the round trip time of the HARQ process. Quick scheduling response capability. The system allocates resources to the user according to the size of the spreading factor. The larger the value of the spreading factor, the smaller the bandwidth provided by the system to the user.
本发明使用的帧与现有技术中使用的帧区别在于：现有技术中扩频因子为 256时，一个 ACK时隙占用的符号个数为 10信息比特，二个 CQI时隙占用的 符号个数为 20信息比特；而在本发明以下实施例二和三中，扩频因子降为 128, 一个 ACK时隙占用的符号个数为 20信息比特， 二个 CQI时隙占用的符号个 数为 40信息比特。  The frame used in the present invention is different from the frame used in the prior art in that, in the prior art, when the spreading factor is 256, the number of symbols occupied by one ACK slot is 10 information bits, and the symbols occupied by two CQI slots are used. The number is 20 information bits; in the following embodiments 2 and 3 of the present invention, the spreading factor is reduced to 128, the number of symbols occupied by one ACK slot is 20 information bits, and the number of symbols occupied by two CQI slots is 40 information bits.
将扩频因子从 256降为 128之后，每个时隙所能承载的信息符号就增加了， 信息符号个数从 10增加到 20。 用 20个信息符号对相同数量排列组合的信号 进行编码， 就能增加码距。 码距增加后， 就能获得编码增益。  After the spreading factor is reduced from 256 to 128, the information symbols that can be carried in each time slot are increased, and the number of information symbols is increased from 10 to 20. By encoding the same number of combined signals with 20 information symbols, the code distance can be increased. After the code distance is increased, the coding gain can be obtained.
并且本发明实施例通过一个 HS-DPCCH联合编码指示两个载波的多天线 数据流， 并将 HS-DPCCH信道的 OVSF码的扩频因子设置为 128， 则可以使 用一个信道承载两个或多个载波的反馈控制信息， 则可减小信道干扰水平，扩 大多载波模式下的信号覆盖范围。  In the embodiment of the present invention, a multi-antenna data stream indicating two carriers is jointly coded by one HS-DPCCH, and the spreading factor of the OVSF code of the HS-DPCCH channel is set to 128, and one channel can be used to carry two or more channels. The feedback control information of the carrier can reduce the channel interference level and expand the signal coverage in the multi-carrier mode.
以下本发明实施例二和实施例三是在扩频因子设置为 128 的基础上实现 的， 可适用于两载波、 三载波、 四载波等多个载波的场景， 以下实施例仅以两 载波为例进行说明。  In the following, the second embodiment and the third embodiment of the present invention are implemented on the basis that the spreading factor is set to 128, and can be applied to multiple carriers such as two carriers, three carriers, and four carriers. The following embodiments only use two carriers. The example is explained.
实施例二、 参见图 2， 图 2为本实施例传输 HS-DPCCH帧的方法流程示 意图。  Embodiment 2 Referring to FIG. 2, FIG. 2 is a schematic flowchart of a method for transmitting an HS-DPCCH frame according to an embodiment.
步骤 201： ^居至少两个载波的 ACK联合编码码本编码 ACK/NACK码字 , ACK联合编码码本以高层重传代价最小为目标， 遵循编码序列的最小码距最 大和编码序列的平均码距最大的约束条件。  Step 201: The ACK joint coding codebook of at least two carriers encodes an ACK/NACK codeword, and the ACK joint codebook aims to minimize the minimum retransmission cost of the uplink, and follows the minimum code interval maximum of the coding sequence and the average code of the coding sequence. The maximum constraint.
至少两个载波的 ACK联合编码码本以高层，即无线链路控制（ RLC， Raido Link Control )层重传代价最小为目标， 遵循编码序列的最小码距最大和编码 序列的平均码距最大的约束条件。 例如， 可以是一个使高层重传代价最小， 编 码序列的最小码距最大和编码序列的平均码距最大的码本。  The ACK joint coding codebook of at least two carriers is targeted at a higher layer, that is, a radio link control (RLC) layer retransmission cost minimum, and the minimum code distance of the coding sequence is the largest and the average code distance of the coding sequence is the largest. Restrictions. For example, it may be a codebook that minimizes the cost of high layer retransmission, the minimum code distance of the coding sequence is the largest, and the average code distance of the coding sequence is the largest.
ACK码本选取遵循上述原则， 并可以对载波作用相反的信号采用成对的 反码， 以使得作用相反的信号之间的码字距离最大。 例如 ACK-ACK信号和 NACK-NACK就是表示两个载波作用完全相反的信号， 当他们之间的码距最 大时， ACK-ACK错解成 NACK-NACK的错误概率就最小， 这样***的错误 代价也就最小。 The ACK codebook follows the above principles, and can use pairs of signals with opposite carrier signals. Inverse, to maximize the codeword distance between signals that have opposite effects. For example, the ACK-ACK signal and the NACK-NACK are signals indicating that the two carriers are completely opposite. When the code distance between them is the largest, the error probability that the ACK-ACK is misinterpreted into NACK-NACK is the smallest, so the error cost of the system. It is also the smallest.
在使用反码的前提下， 则码长为 20的编码序列最小码距最大是 10， 则重 新设计 ACK编码码本可如下表 2所示， 表 2的 Al ~ A6, CI ~ C6表示 12行 两两之间最小距离为 10的码字， Bl ~ B6表示 Al ~ A6的反码， D1 ~ D6表示 CI ~ C6的反码，他们构成双载波多天线场景下最多 24种排列组合状态的指示 表 2 HARQ-ACK编码码本  On the premise of using the inverse code, the minimum code interval of the code sequence with a code length of 20 is 10, and the redesigned ACK codebook can be as shown in Table 2 below. Al ~ A6, CI ~ C6 of Table 2 indicate 12 lines. The code with the minimum distance between the two is 10, Bl ~ B6 indicates the inverse of Al ~ A6, and D1 ~ D6 indicates the inverse of CI ~ C6. They form an indication of up to 24 combinations of states in the dual-carrier multi-antenna scene. Table 2 HARQ-ACK codebook
A1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 A1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
C1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1C1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1
A2 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 1 1 1 1 1A2 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 1 1 1 1 1
C2 1 1 0 0 0 0 0 1 1 1 0 0 1 1 1 1 1 0 0 0C2 1 1 0 0 0 0 0 1 1 1 0 0 1 1 1 1 1 0 0 0
A3 1 1 0 0 0 0 1 1 1 0 1 1 1 0 0 0 0 0 1 1A3 1 1 0 0 0 0 1 1 1 0 1 1 1 0 0 0 0 0 1 1
C3 1 0 1 0 0 0 1 1 0 1 1 0 0 1 1 0 0 1 1 0C3 1 0 1 0 0 0 1 1 0 1 1 0 0 1 1 0 0 1 1 0
A4 1 0 1 0 0 1 1 0 0 1 1 1 1 0 0 1 1 0 0 0A4 1 0 1 0 0 1 1 0 0 1 1 1 1 0 0 1 1 0 0 0
C4 1 0 0 1 0 1 0 1 1 0 1 1 0 0 1 0 1 1 0 0C4 1 0 0 1 0 1 0 1 1 0 1 1 0 0 1 0 1 1 0 0
A5 1 0 0 0 1 1 0 1 0 1 0 1 1 1 0 0 0 1 0 1A5 1 0 0 0 1 1 0 1 0 1 0 1 1 1 0 0 0 1 0 1
C5 1 0 0 0 1 1 1 0 1 0 1 0 0 1 1 1 0 0 0 1C5 1 0 0 0 1 1 1 0 1 0 1 0 0 1 1 1 0 0 0 1
A6 0 1 1 0 0 1 0 0 1 1 1 0 1 0 1 0 0 1 0 1A6 0 1 1 0 0 1 0 0 1 1 1 0 1 0 1 0 0 1 0 1
C6 0 1 1 0 0 1 1 1 0 0 0 1 0 1 1 0 1 0 0 1C6 0 1 1 0 0 1 1 1 0 0 0 1 0 1 1 0 1 0 0 1
B1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0B1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
D1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0D1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0
B2 1 1 1 1 1 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0B2 1 1 1 1 1 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0
D2 0 0 1 1 1 1 1 0 0 0 1 1 0 0 0 0 0 1 1 1D2 0 0 1 1 1 1 1 0 0 0 1 1 0 0 0 0 0 1 1 1
B3 0 0 1 1 1 1 0 0 0 1 0 0 0 1 1 1 1 1 0 0B3 0 0 1 1 1 1 0 0 0 1 0 0 0 1 1 1 1 1 0 0
D3 0 1 0 1 1 1 0 0 1 0 0 1 1 0 0 1 1 0 0 1D3 0 1 0 1 1 1 0 0 1 0 0 1 1 0 0 1 1 0 0 1
B4 0 1 0 1 1 0 0 1 1 0 0 0 0 1 1 0 0 1 1 1 D4 0 1 1 0 1 0 1 0 0 1 0 0 1 1 0 1 0 0 1 1B4 0 1 0 1 1 0 0 1 1 0 0 0 0 1 1 0 0 1 1 1 D4 0 1 1 0 1 0 1 0 0 1 0 0 1 1 0 1 0 0 1 1
B5 0 1 1 1 0 0 1 0 1 0 1 0 0 0 1 1 1 0 1 0B5 0 1 1 1 0 0 1 0 1 0 1 0 0 0 1 1 1 0 1 0
D5 0 1 1 1 0 0 0 1 0 1 0 1 1 0 0 0 1 1 1 0D5 0 1 1 1 0 0 0 1 0 1 0 1 1 0 0 0 1 1 1 0
B6 1 0 0 1 1 0 1 1 0 0 0 1 0 1 0 1 1 0 1 0B6 1 0 0 1 1 0 1 1 0 0 0 1 0 1 0 1 1 0 1 0
D6 1 0 0 1 1 0 0 0 1 1 1 0 1 0 0 1 0 1 1 0 其中， （Ax, Bx )互为反码， （Cx, Dx )互为反码， x为上表所示的 1-6 的任意一个数字。 D6 1 0 0 1 1 0 0 0 1 1 1 0 1 0 0 1 0 1 1 0 where (Ax, Bx ) are mutually inverted, (Cx, Dx ) are mutually inverted, and x is the one shown in the above table. Any number from 1-6.
Al ~ A6, Bl ~ B6, C1 ~ C6, Dl ~ D6只是一个 24种 4非列组合状态的具 体码字实施例。本发明保护的范围包括根据表 1以及表 1变换后所计算出的所 ***字； 表 1变换可以是表 1的任何一列取反（即 1和 0互相取反 )； 也可以 是表 1的任何两列两两互换 (比如第 1列换到第 4列的位置， 第四列换到第 1 列的位置） 。  Al ~ A6, Bl ~ B6, C1 ~ C6, Dl ~ D6 are just a specific codeword embodiment of 24 kinds of 4 non-column combined states. The scope of protection of the present invention includes all codewords calculated after conversion according to Table 1 and Table 1; Table 1 transformation may be any column inversion of Table 1 (ie, 1 and 0 are mutually inverted); Any two columns are interchanged (for example, the first column is changed to the position of the fourth column, and the fourth column is changed to the position of the first column).
两个信道上两个载波可能是： 两个单流载波（single stream ) 、 两个双流 载波（dual stream ) , 或者是一个单流载波一个双流载波， 各种组合状态的检 测空间如下各表所示 , 其中 DTX为不连续发送 ( Discontinuos Transmit ) ：  The two carriers on the two channels may be: two single stream (single stream), two dual stream carriers (dual stream), or one single stream carrier and one dual stream carrier. The detection spaces of various combined states are as follows: Show, where DTX is discontinuous (Discontinuos Transmit):
载波 1单流， 载波 2单流的码字映射组合  Carrier 1 single stream, carrier 2 single stream codeword mapping combination
Figure imgf000009_0002
Figure imgf000009_0002
载波 1单流， 载波 2双流的码字映射组合  Carrier 1 single stream, carrier 2 dual stream codeword mapping combination
Figure imgf000009_0001
表 5 载波 1双流， 载波 2单流的码字映射组合
Figure imgf000009_0001
Table 5: Carrier 1 dual stream, carrier 2 single stream codeword mapping combination
Figure imgf000010_0001
Figure imgf000010_0001
表 6 载波 1双流， 载波 2双流的码字映射组合  Table 6 Carrier 1 dual stream, carrier 2 dual stream codeword mapping combination
Figure imgf000010_0002
以表 3为例， 如果单流的 ACK-ACK组合为 D2,对应的码字如表 2的 D2 歹 J , 对应^ /序歹 'J为 00111110001100000111。 并且 D2的 码为 C2, 表 3中 C2对应的是单流的 NACK-NACK, 对应的码字如表 2的 C2列 , 对应 的序歹 'J为 11000001110011111000,则反码确保了作用相反的信号之 间的码字距离最大， ***出错的概率就小。
Figure imgf000010_0002
Taking Table 3 as an example, if the ACK-ACK combination of a single stream is D2, the corresponding codeword is D2 歹J of Table 2, and the corresponding ^ / 歹 'J is 00111110001100000111. And the code of D2 is C2, and C2 in Table 3 corresponds to the single-flow NACK-NACK, the corresponding codeword is as the C2 column of Table 2, and the corresponding sequence 歹'J is 11000001110011111000, the inverse code ensures the opposite signal The maximum codeword distance between them is small, and the probability of system error is small.
从以上各表看可看出， 虽然部分码字在四种情况中被重复使用了，但是在 每种组合情况对应的检测空间中， 码字没有重复， 不会互相冲突。  As can be seen from the above tables, although some codewords are repeatedly used in the four cases, in the detection space corresponding to each combination case, the codewords are not repeated and do not conflict with each other.
上面所引用的 Al ~A6, CI ~C6只是在表 1的向量中选取的一个具体实 施例， 实际应用情况中的 HARQ-ACK映射方式可以是 Al ~A6, CI ~C6这 12 个码字的任意两两互换（当然， 相对应的反码也要跟着互换） ， 都不影响 本发明实施例的实现。  The above-mentioned Al ~ A6, CI ~ C6 is only a specific embodiment selected in the vector of Table 1, the HARQ-ACK mapping method in the actual application case may be Al ~ A6, CI ~ C6 12 code words Any two or two interchanges (of course, the corresponding inverse codes are also interchanged) do not affect the implementation of the embodiments of the present invention.
步骤 202: 据至少两个载波的信道质量指示因子 CQI联合编码码本编码 CQI码字， CQI联合编码码本以编码序列的最小码距最大为目标， 编码序列的 平均码距最大为约束条件，或者以编码序列的平均码距最大为目标， 编码序列 的最小码距最大为约束条件。例如，可以是一个编码序列的最小码距最大和编 码序列的平均码距最大的码本。 Step 202: Jointly encode a codebook-coded CQI codeword according to a channel quality indicator CQI of at least two carriers, where the CQI joint codebook has a maximum minimum code-length of the code sequence, and an average code-length of the code sequence is a constraint condition. Or aiming at the maximum code distance of the coding sequence, the coding sequence The minimum code distance is the maximum constraint. For example, it may be a codebook having a minimum code interval of a coding sequence and an average code interval of the coding sequence.
扩频因子 128的至少两个载波的 CQI码本可以是扩频因子 256的多输入 多输出***（ MIMO, Multiple Input Multiple Output )码本的重复，即 HS-DPCCH 的第二个时隙的 20 个符号指示一个载波的多天线数据块， 第三个时隙的 20 个符号指示另一个载波的多天线数据块。  The CQI codebook of at least two carriers of the spreading factor 128 may be a repetition of a MIMO (Multiple Input Multiple Output) codebook of a spreading factor of 256, that is, 20 of the second time slot of the HS-DPCCH The symbols indicate multi-antenna data blocks of one carrier, and the 20 symbols of the third time slot indicate multi-antenna data blocks of another carrier.
使用单个 HS-DPCCH信道承载两个载波的 CQI, 既可以采用 （40， 20 ) 的 RM编码方式， 也可以采用上述的（20， 10 )的 RM编码方式。 CQI联合编 码采用的一种编码码本如表 7所示：  The CQI of two carriers is carried by using a single HS-DPCCH channel, and either the RM coding mode of (40, 20) or the RM coding mode of (20, 10) mentioned above can be used. An encoding codebook used in CQI joint coding is shown in Table 7:
表 7 CQI编码码本  Table 7 CQI codebook
Figure imgf000011_0001
Figure imgf000011_0001
编码过程示意图如图 3 所示， 将预编码指示 （PCI , Precoding coding Indicator )经过二进制转换 ( Binary mapping )得到 pci0和 pcii , Α类型 ( Type A )或者 B类型 （ Type B ) CQI经过二进制转换得到 cqi。、 cq^至 cqi7或者得 到 cqi。、 。^1至0911， 再将得到的数据进行组合， 得到 a。、 &1至&9或者得到&0、 ai - 。 The coding process diagram is shown in Figure 3. The precoding indication (PCI, Precoding coding Indicator) is binary converted (binary mapping) to obtain pci 0 and pcii, Α type (Type A) or B type (Type B) CQI is binary converted. Get cqi. , cq^ to cqi 7 or To cqi. , . ^ 1 to 091 1 , and combine the obtained data to obtain a. , & 1 to & 9 or get & 0 , ai - .
多天线双流时：  Multi-antenna dual-flow:
( 0 α α2 α3 4 5 α6 αΊ 8 9)= {pci0 pci cqi0 cqi cqi2 cqi3 cqi cqi5 cqi6 cqi7 ) ( 0 α α 2 α 3 4 5 α 6 α Ί 8 9 )= {pci 0 pci cqi 0 cqi cqi 2 cqi 3 cqi cqi 5 cqi 6 cqi 7 )
双流时， 采用 （20, 10) 的 RM编码方式， 输出的编码后码字为：
Figure imgf000012_0001
In the case of dual stream, the RM encoding method of (20, 10) is adopted, and the encoded codeword output is:
Figure imgf000012_0001
i = 0,…， 19。  i = 0,..., 19.
多天线单流时：  Multi-antenna single-flow:
( 0 α α2 α3 4 5 6) = {pci0 pci cqi0 cqi cqi2 cqi3 cqi ) ( 0 α α 2 α 3 4 5 6 ) = {pci 0 pci cqi 0 cqi cqi 2 cqi 3 cqi )
单流时， 采用 （20， 7) 的 RM编码， 输出的编码后码字为： h = ∑(αη χ MJ +∑(αη χ Μ,,„+1) +α5 χ Μ + α6 χ M mod 2 i = 0，…， 19。 For single stream, the RM code of (20, 7) is used, and the output coded code word is: h = ∑(α η χ MJ +∑(α η χ Μ,, „ +1 ) +α 5 χ Μ + α 6 χ M mod 2 i = 0,..., 19.
步骤 203: 组合 ACK码字和 CQI码字得到帧。  Step 203: Combine the ACK codeword and the CQI codeword to obtain a frame.
组合可以是将 ACK码字的 20个符号放在 2ms子帧的第一个时隙，将 CQI 码字的 20个符号放在 2ms子帧的第二、 三个时隙。  The combination may be to place the 20 symbols of the ACK codeword in the first time slot of the 2ms subframe, and place the 20 symbols of the CQI codeword in the second and third time slots of the 2ms subframe.
步骤 204: 选择码道发送该帧。  Step 204: Select a code channel to send the frame.
新的扩频码道的选取应该遵循 CM值最小的原则，并且与现有上行专用链 路 OVSF码道保持正交，可减少射频信号在功率放大器中的能量损失，提高功 率放大器的工作效率。  The selection of the new spread spectrum track should follow the principle of minimum CM value and be orthogonal to the existing uplink dedicated link OVSF code channel, which can reduce the energy loss of the RF signal in the power amplifier and improve the working efficiency of the power amplifier.
联合编码的 HS-DPCCH的码道可选择为 Cch, 128, x ； 其中， Cch指的 是物理信道分配的扩频因子和码道号， 128是扩频因子， 码道号是 X 。 当扩频 因子为 128 时， HS-DPCCH采用二相相移键控 (BPSK, Binary Phase Shift Keying)调制， x可以是 1到 64之间的正整数， 包括但不限于 1, 2, 3, 4, 5, 7, 8, 9, 15, 16, 17, 32, 33, 63, 64。  The code channel of the jointly coded HS-DPCCH may be selected as Cch, 128, x; where Cch refers to the spreading factor and code channel number of the physical channel allocation, 128 is the spreading factor, and the code channel number is X. When the spreading factor is 128, the HS-DPCCH is modulated by Binary Phase Shift Keying (BPSK), and x can be a positive integer between 1 and 64, including but not limited to 1, 2, 3, 4, 5, 7, 8, 9, 15, 16, 15, 32, 33, 63, 64.
扩频因子 128的单个 HS-DPCCH的联合编码方式也可以用于三个载波、 四个载波、 五个载波、 六个载波， 都不影响本发明实施例的实现。  The joint coding mode of the single HS-DPCCH of the spreading factor 128 can also be applied to three carriers, four carriers, five carriers, and six carriers, without affecting the implementation of the embodiment of the present invention.
因复数信号的实部和虚部能量平衡， 能获得较小的 CM值， 所以 最大信道个数（Nmax-dpdch ) =0 的情况下， Q路信号的能量多， 联合编 码的 HS-DPCCH信道映射到 I路上 , CM值比映射到 Q路上的 CM值小。 Due to the energy balance between the real and imaginary parts of the complex signal, a smaller CM value can be obtained, so When the maximum number of channels (Nmax-dpdch) =0, the energy of the Q channel signal is large, and the jointly coded HS-DPCCH channel is mapped to the I path, and the CM value is smaller than the CM value mapped to the Q path.
Nmax-dpdch=l 的情况下， I路信号的能量多，联合编码的 HS-DPCCH信 道映射到 Q路上 , CM值比映射到 I路上的 CM值小。  In the case of Nmax-dpdch=l, the energy of the I channel signal is large, and the joint coded HS-DPCCH channel is mapped to the Q path, and the CM value is smaller than the CM value mapped to the I path.
本发明实施例通过对多载波模式的 HS-DPCCH帧进行联合编码， 其中， 扩频因子设置为 128, 使得一个信道承载两个或多个载波的反馈控制信息， 则 可减小信道干扰水平，扩大多载波模式下的信号覆盖范围，并节省上行码资源。  In the embodiment of the present invention, the HS-DPCCH frame of the multi-carrier mode is jointly coded, wherein the spreading factor is set to 128, so that one channel carries feedback control information of two or more carriers, thereby reducing the channel interference level. Expand signal coverage in multi-carrier mode and save upstream code resources.
本发明实施例二中的 CQI码本的联合编码设计还可采用绝对授权信道 或者 1/2码率， 以下实施例三进行伴细说明。  The joint coding design of the CQI codebook in the second embodiment of the present invention may also adopt an absolute grant channel or a 1/2 code rate, which is described in detail in the following third embodiment.
实施例三、  Embodiment 3
CQI采用 Viterbi编码方式时， 先对某些特定比特位进行凿孔， 过程如图 4 所示，用 Cellx表示第 X个载波，将 Xcellu、 Xcelll.2至 Xcdll.10或者是 Xce112.1、 XCe112.2 至 Xceii2.i。进行复用 （Multiplexing )后得到 y y2至 。， 将 y y2至 。经过 信道编码（Channel coding )后得到 Zl、 z2至 z84共 84个编码后比特， 进行速 率匹配算法计算， 比特位 Z Z2， Z5， Z6， Z7， Zn, Z17， Z24， Z31， Z37， Z44, Z47， Z50, Z52， Z55, z56被凿孔， 得到 40位的输出序列 ri、 r2至 r4(), 速率匹配算法可按照现有技术 中的规则进行， ri、 r2至 r4()经过物理信道映射则得到 CQI。 When CQI adopts Viterbi coding mode, some specific bits are first punctured. The process is shown in Figure 4. The Xth carrier is represented by Cellx, X cellu , X celll .2 to Xcdll.10 or X ce 112.1 , X Ce 112.2 to X ce ii2.i. After multiplexing (Multiplexing), yy 2 is obtained. , will yy 2 to. After channel encoding (Channel coding) obtained after Zl, z 2 - z after 84 Total 84 encoded bits, rate matching algorithm, bit ZZ 2, Z 5, Z 6 , Z 7, Z n, Z 17, Z 24 , Z 31 , Z 37 , Z44 , Z 47 , Z 50 , Z 52 , Z55 , z 56 are punctured to obtain 40-bit output sequences ri , r 2 to r 4() . The rate matching algorithm can be used according to the existing The rules in the technique are carried out, and ri , r 2 to r 4() are mapped by physical channel to obtain CQI.
卷积码的编码方式可采用 1/3码率或者 1/2码率进行， 具体过程如图 5所 示， 其中图 5 ( a )为采用 1/2码率的编码示意图， 图 5 ( b )为采用 1/3码率的 编码示意图。 对于低速数据， 卷积码的编码率选择 1/3 , 对于中速数据， 编码 率选择 1/2。  The coding method of the convolutional code can be performed at a rate of 1/3 code rate or 1/2 code rate. The specific process is shown in FIG. 5, wherein FIG. 5(a) is a coding diagram using a 1/2 code rate, and FIG. 5 (b) ) is a coding scheme using 1/3 code rate. For low-speed data, the coding rate of the convolutional code is chosen to be 1/3, and for medium-speed data, the coding rate is chosen to be 1/2.
卷积编码属于信道编码， 主要用来纠正码字的随机差错， 它以牺牲效率来 换取可靠性， 利用增加监督位， 进行检错和纠错。  Convolutional coding is a channel coding. It is mainly used to correct random errors of codewords. It sacrifices efficiency for reliability, and uses supervised bits to perform error detection and error correction.
本发明实施例通过对多载波模式的 HS-DPCCH帧进行联合编码， 对 CQI 采用 Viterbi编码方式， 使得可以使用一个信道承载两个或多个载波的反馈控 制信息， 则可减小信道干扰水平， 扩大多载波模式下的信号覆盖范围， 并节省 上行码资源。  In the embodiment of the present invention, the HS-DPCCH frame in the multi-carrier mode is jointly coded, and the Viterbi coding mode is adopted for the CQI, so that the feedback control information of two or more carriers can be carried by using one channel, thereby reducing the channel interference level. Expand signal coverage in multi-carrier mode and save upstream code resources.
以下实施例四详细说明在扩频因子为 256时， HS-DPCCH联合编码的流 程。 The following embodiment 4 details the HS-DPCCH joint coded stream when the spreading factor is 256. Cheng.
实施例四、  Embodiment 4
扩频因子为 256时， HS-DPCCH联合编码的 ACK/NACK部分采用正交相 移调制 （QPSK, Quadrature Phase Keying )方式。  When the spreading factor is 256, the ACK/NACK part of the HS-DPCCH joint coding adopts Quadrature Phase Keying (QPSK).
码本仍然可选用实施例二中表 2所示的 ACK/NACK编码码本， 选取原则 同样以是高层（RLC， Radio Link Control层）重传代价最小为目标， 遵循编码 序列的最小码距最大的约束条件和编码序列的平均码距最大的约束条件。在码 长为 20的编码序列中 , 确保所选取的指示多载波多天线下数据流状态的码字 之间两两最小码距为 10， 并且有成对的反码出现。  The codebook can still use the ACK/NACK codebook shown in Table 2 in Embodiment 2, and the selection principle is also the highest retransmission cost of the upper layer (RLC, Radio Link Control layer), and the minimum code distance of the code sequence is the largest. The constraint and the average code distance of the coding sequence are the largest constraints. In the code sequence with a code length of 20, it is ensured that the selected minimum code distance between the code words indicating the state of the data stream under the multi-carrier multi-antenna is 10, and a pair of inverted codes appear.
CQI码本的编码可以选用实施例二的 （20， 10 )按不同时隙周期重复的 RM编码方式或者（40， 20 ) RM编码方式， 也可以选用实施例三的 Viterbi 卷积编码方式进行 CQI码本的联合编码。  The coding of the CQI codebook may be performed by using the RM coding mode or the (40, 20) RM coding mode repeated in different time slot periods in the second embodiment (20, 10), or the Viterbi convolutional coding method in the third embodiment may be used for CQI. Joint coding of codebooks.
HS-DPCCH新的 QPSK调制的扩频码道的选取应该遵循 CM值最小的原 则， 并且与现有上行专用链路 OVSF码道保持正交。  The HS-DPCCH new QPSK modulated spreading code channel should be selected to follow the principle of minimum CM value and be orthogonal to the existing uplink dedicated link OVSF code channel.
联合编码的 HS-DPCCH的码道选择为 Cch, 256, χ , x为 1到 64之间的 正整数， 包括但不限于 32, 33。  The code channel selection of the joint-coded HS-DPCCH is Cch, 256, χ, and x is a positive integer between 1 and 64, including but not limited to 32, 33.
本发明实施例通过对多载波模式的 HS-DPCCH帧进行联合编码， 可在扩 频因子为 256时，使得一个信道承载两个或多个载波的反馈控制信息， 则可减 小信道干扰水平， 扩大多载波模式下的信号覆盖范围， 并节省上行码资源。  In the embodiment of the present invention, by jointly coding the HS-DPCCH frame in the multi-carrier mode, when the spreading factor is 256, one channel carries the feedback control information of two or more carriers, thereby reducing the channel interference level. Expand signal coverage in multi-carrier mode and save upstream code resources.
需要说明的是，本领域技术人员应该知悉，说明书中所描述的实施例均 属于优选实施例， 所涉及的动作和模块并不一定是本发明所必须的。  It should be noted that those skilled in the art should understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.
在上述实施例中， 对各个实施例的描述都各有侧重， 某个实施例中没 有详述的部分， 可以参见其他实施例的相关描述。  In the above embodiments, the descriptions of the various embodiments are different, and the details are not described in detail in an embodiment, and the related descriptions of other embodiments can be referred to.
以上实施例提供了一种传输 HS-DPCCH的方法， 本发明实施例还提供基 站。  The above embodiment provides a method of transmitting an HS-DPCCH, and an embodiment of the present invention further provides a base station.
一种基站， 包含一个发送单元， 用于向用户设备传输一个 HS-DPCCH, 所述 HS-DPCCH 载至少两个上行载波的 ACK/NACK和 CQI, 所述至少两 个上行载波的 ACK/NACK和 CQI分别进行了联合编码； 其中，  A base station, comprising: a sending unit, configured to transmit an HS-DPCCH to a user equipment, where the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK of the at least two uplink carriers CQI is jointly coded separately;
所述 HS-DPCCH的 OVSF码的扩频因子为 128; 所述 HS-DPCCH的一个 2毫秒帧中 ACK/NACK占用一个时隙， 所述一个 ACK/NACK时隙的符号个 数为 20; 所述 HS-DPCCH的一个 2毫秒帧中 CQI 占用两个时隙， 所述两个 CQI时隙的符号个数为 40。 The spreading factor of the OVSF code of the HS-DPCCH is 128; one of the HS-DPCCH The ACK/NACK occupies one slot in a 2 millisecond frame, the number of symbols of the one ACK/NACK slot is 20; the CQI of the 2 ms frame of the HS-DPCCH occupies two slots, the two CQIs The number of symbols in the slot is 40.
对 ACK/NACK进行联合编码的码本为使高层重传代价最小， 编码序列的 最小码距最大和编码序列的平均码距最大的码本；并可对载波作用完全相反的 两个 ACK/NACK信号采用成对的反码， 使得他们之间的码距最大， 被错解的 几率则最小。  The codebook for joint coding of ACK/NACK is a codebook that minimizes the cost of high-layer retransmission, has the smallest minimum code interval of the coding sequence, and has the largest average code distance of the coding sequence; and can perform two ACK/NACKs with opposite opposite effects on the carrier. The signals use a pair of inverse codes, which makes the code distance between them the largest and the probability of being misinterpreted the smallest.
对 CQI联合编码的码本为编码序列的最小码距最大和编码序列的平均码 距最大的码本。 可采用 （40, 20 )的 Reed Muller编码方式， 或者是（20, 10 ) 的 Reed Muller编码方式进行 CQI码本的联合编码， 后者可以在两个时隙周期 重复两次达到和（40， 20 ) RM编码方式相同的作用。  The codebook jointly coded for CQI is the codebook with the smallest minimum code distance of the coding sequence and the largest average code distance of the coding sequence. The joint coding of the CQI codebook may be performed by using the Reed Muller coding method of (40, 20) or the Reed Muller coding mode of (20, 10), and the latter may be repeated twice in two slot cycles to reach the sum (40, 20) The same effect of RM encoding.
或者， 可以采用 Viterbi编码方式进行 CQI的联合编码， 采用 1/3码率或 者 1/2码率， 都不影响本发明实施例的实现。  Alternatively, the joint encoding of the CQI may be performed by using the Viterbi coding method, and the implementation of the embodiment of the present invention is not affected by using the 1/3 code rate or the 1/2 code rate.
该发送单元选择码道传输所述 HS-DPCCH时可以遵循 CM值最小的原则， 并且与现有上行专用链路 OVSF码道保持正交。  The transmitting unit selects the code channel to transmit the HS-DPCCH, and can follow the principle that the CM value is the smallest, and is orthogonal to the existing uplink dedicated link OVSF code channel.
扩频因子 128的单个 HS-DPCCH的联合编码方式也可以用于三个载波、 四个载波、 五个载波、 六个载波的场景， 都不影响本发明实施例的实现。  The joint coding mode of the single HS-DPCCH of the spreading factor 128 can also be applied to the scenario of three carriers, four carriers, five carriers, and six carriers, which does not affect the implementation of the embodiment of the present invention.
另一种基站， 包含一个发送单元， 用于向用户设备传输一个 HS-DPCCH, 所述 HS-DPCCH 载至少两个上行载波的 ACK/NACK和 CQI, 所述至少两 个上行载波的 ACK/NACK和 CQI分别进行了联合编码； 其中，  Another base station includes a sending unit, configured to transmit an HS-DPCCH to the user equipment, where the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK of the at least two uplink carriers Joint coding with CQI;
所述 HS-DPCCH的 OVSF码的扩频因子为 256;所述 ACK/NACK采用正 交相移调制方式进行调制。这样，也可以使用一个信道承载两个或多个载波的 反馈控制信息， 扩大多载波模式下的信号覆盖范围。  The spreading factor of the OVSF code of the HS-DPCCH is 256; the ACK/NACK is modulated by a quadrature phase shift modulation. In this way, feedback control information of two or more carriers can also be carried by one channel to expand the signal coverage in the multi-carrier mode.
本发明实施例说明的方法和基站通过对多载波模式的 HS-DPCCH帧进行 联合编码，使得可以使用一个信道承载两个或多个载波的反馈控制信息， 则可 减小 CM值， 扩大多载波模式下的信号覆盖范围。  The method and the base station according to the embodiment of the present invention jointly encode the HS-DPCCH frame in the multi-carrier mode, so that one channel can be used to carry feedback control information of two or more carriers, thereby reducing the CM value and expanding the multi-carrier. Signal coverage in mode.
本发明实施例设备的各个模块可以集成于一体，也可以分离部署。上述模 块可以合并为一个模块， 也可以进一步拆分成多个子模块。  The modules of the device in the embodiment of the present invention may be integrated into one or may be separately deployed. The above modules can be combined into one module, or can be further split into multiple sub-modules.
本领域普通技术人员可以理解， 实现上述实施例方法中的全部或部分流 程，是可以通过计算机程序来指令相关的硬件来完成， 所述的程序可存储于一 计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的 流程。 其中， 所述的存储介质可为磁碟、 光盘、 只读存储记忆体（Read-Only Memory, ROM )或随才 储记忆体 ( Random Access Memory, RAM )等。 One of ordinary skill in the art will appreciate that all or part of the flow in the method of the above embodiments is implemented. The program may be implemented by a computer program to instruct related hardware, and the program may be stored in a computer readable storage medium, which, when executed, may include the flow of an embodiment of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
以上对本发明实施例所提供的一种 HS-DPCCH的编码方法及编码器进行 以上实施例的说明只是用于帮助理解本发明的方法及其核心思想； 同时，对于 本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均 会有改变之处， 综上所述， 本说明书内容不应理解为对本发明的限制。  The foregoing description of the HS-DPCCH encoding method and the encoder provided by the embodiment of the present invention is only for helping to understand the method of the present invention and its core idea; meanwhile, for those skilled in the art, based on The present invention is not limited by the scope of the present invention.

Claims

权 利 要 求 Rights request
1、 一种传输高速专用物理控制信道 HS-DPCCH的方法， 其特征在于， 包 括：  A method for transmitting a high-speed dedicated physical control channel HS-DPCCH, characterized in that:
在宽带码分多址 WCDMA***的上行多载波中， 基站向用户设备传输一 个 HS-DPCCH,所述 HS-DPCCH承载至少两个上行载波的确认应答 /非确认应 答 ACK/NACK 和信道质量指示因子 CQI , 所述至少两个上行载波的 ACK/NACK和 CQI分别进行了联合编码； 其中，  In the uplink multi-carrier of the wideband code division multiple access WCDMA system, the base station transmits an HS-DPCCH to the user equipment, and the HS-DPCCH carries acknowledgement/non-acknowledgement acknowledgement ACK/NACK and channel quality indicator factors of at least two uplink carriers. CQI, the ACK/NACK and the CQI of the at least two uplink carriers are jointly coded respectively;
所述 HS-DPCCH的正交可变扩频因子 OVSF码的扩频因子为 128; 所述 HS-DPCCH 的一个 2 毫秒帧中 ACK/NACK 占用一个时隙， 所述一个 ACK/NACK时隙的符号个数为 20; 所述 HS-DPCCH的一个 2毫秒帧中 CQI 占用两个时隙， 所述两个 CQI时隙的符号个数为 40。  The spreading factor of the orthogonal variable spreading factor OVSF code of the HS-DPCCH is 128; ACK/NACK occupies one time slot in a 2 ms frame of the HS-DPCCH, and the one ACK/NACK time slot The number of symbols is 20; the CQI of the 2 ms frame of the HS-DPCCH occupies two slots, and the number of symbols of the two CQI slots is 40.
2、 如权利要求 1所述的方法， 其特征在于， 所述 ACK/NACK联合编码 的码本包括使高层重传代价最小 ,编码序列的最小码距最大和编码序列的平均 码距最大的码本。  2. The method according to claim 1, wherein the codebook jointly encoded by the ACK/NACK includes a code that minimizes the retransmission cost of the upper layer, the minimum code distance of the coding sequence is the largest, and the average code interval of the coding sequence is the largest. this.
3、 如权利要求 2所述的方法， 其特征在于， 所述 ACK/NACK联合编码 的码本包括成对反码时， 则码长为 20的编码序列中的最小码距为 10。  The method according to claim 2, wherein when the codebook jointly encoded by the ACK/NACK includes paired inversion, the minimum code interval in the code sequence with a code length of 20 is 10.
4、 如权利要求 1所述的方法， 其特征在于， 所述 CQI联合编码的码本包 括编码序列的最小码距最大和编码序列的平均码距最大的码本。  The method according to claim 1, wherein the codebook jointly encoded by the CQI comprises a codebook having a minimum code distance maximum of a coding sequence and an average code distance of the coding sequence.
5、 如权利要求 1所述的方法， 其特征在于， 所述 CQI联合编码的编码方 式为： （40, 20 ) 的 Reed Muller编码方式， 或者（20， 10 ) 的 Reed Muller 编码方式， 或者 Viterbi编码方式。  The method according to claim 1, wherein the CQI joint coding is encoded by: (40, 20) Reed Muller coding mode, or (20, 10) Reed Muller coding mode, or Viterbi Encoding.
6、 如权利要求 1至 5任意一项所述的方法， 其特征在于， 还包括： 选择码道传输所述 HS-DPCCH; 其中， 所述码道为立方度量 CM值最小， 并与现有上行专用链路 OVSF码道正交的码道。  The method according to any one of claims 1 to 5, further comprising: selecting a code channel to transmit the HS-DPCCH; wherein, the code channel is a cubic metric with a minimum CM value, and Uplink dedicated link OVSF code channel orthogonal code channel.
7、 如权利要求 6所述的方法， 其特征在于， 所述选择的码道的码道号为 1， 2, 3， 4， 5, 7, 8， 9， 15, 16， 17, 32, 33， 63， 64中的任意一个。  7. The method according to claim 6, wherein the code channel number of the selected code channel is 1, 2, 3, 4, 5, 7, 8, 9, 15, 16, 17, 32, Any of 33, 63, 64.
8、 如权利要求 1至 5任意一项所述的方法， 其特征在于， 还包括： 当最大信道个数 Nmax-dpdch=0时， 所述 HS-DPCCH信道映射到 I路； 当 Nmax-dpdch=l时， 所述 HS-DPCCH信道映射到 Q路。 The method according to any one of claims 1 to 5, further comprising: when the maximum number of channels Nmax-dpdch=0, the HS-DPCCH channel is mapped to the I path; when Nmax-dpdch When =1, the HS-DPCCH channel is mapped to the Q path.
9、 一种传输高速专用物理控制信道 HS-DPCCH的方法， 其特征在于， 包 括： 9. A method of transmitting a high speed dedicated physical control channel HS-DPCCH, characterized in that it comprises:
在 WCDMA***的上行多载波中，基站向用户设备传输一个 HS-DPCCH, 所述 HS-DPCCH 载至少两个上行载波的 ACK/NACK和 CQI, 所述至少两 个上行载波的 ACK/NACK和 CQI分别进行了联合编码； 其中，  In the uplink multi-carrier of the WCDMA system, the base station transmits an HS-DPCCH to the user equipment, the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK and CQI of the at least two uplink carriers. Joint coding is performed separately;
HS-DPCCH 的一个 2 毫秒帧中 ACK/NACK 占用一个时隙， 所述一个 ACK/NACK时隙的符号个数为 10; 所述 HS-DPCCH的一个 2毫秒帧中 CQI 占用两个时隙， 所述两个 CQI时隙的符号个数为 20; 所述 ACK/NACK采用 正交相移调制方式进行调制。 In a 2 ms frame of the HS-DPCCH, ACK/NACK occupies one slot, and the number of symbols of the one ACK/NACK slot is 10; in a 2 ms frame of the HS-DPCCH, CQI occupies two slots, The number of symbols of the two CQI slots is 20; the ACK/NACK is modulated by a quadrature phase shift modulation.
10、 如权利要求 9所述的方法， 其特征在于， 所述 ACK/NACK联合编码 的码本包括使高层重传代价最小 ,编码序列的最小码距最大和编码序列的平均 码距最大的码本。  10. The method according to claim 9, wherein the codebook jointly encoded by the ACK/NACK includes a code that minimizes the retransmission cost of the upper layer, and has the smallest minimum code interval of the coding sequence and the average code interval of the coding sequence. this.
11、 如权利要求 9所述的方法， 其特征在于， 所述 CQI联合编码的码本 包括编码序列的最小码距最大和编码序列的平均码距最大的码本。  The method according to claim 9, wherein the codebook jointly coded by the CQI includes a codebook having a minimum code interval maximum of the code sequence and an average code distance of the code sequence.
12、 如权利要求 9至 11任意一项所述的方法， 其特征在于， 还包括： 选择码道传输所述 HS-DPCCH; 其中， 所述码道为立方度量 CM值最小， 并与现有上行专用链路 OVSF码道正交的码道。  The method according to any one of claims 9 to 11, further comprising: selecting a code channel to transmit the HS-DPCCH; wherein, the code channel is a cubic metric with a minimum CM value, and Uplink dedicated link OVSF code channel orthogonal code channel.
13、 如权利要求 12所述的方法， 其特征在于， 所述选择的码道的码道号 为 32或 33。  13. The method of claim 12, wherein the selected code channel has a code track number of 32 or 33.
14、 如权利要求 9至 11任意一项所述的方法， 其特征在于， 还包括： 当最大信道个数 Nmax-dpdch=0时， 所述 HS-DPCCH信道映射到 I路； 当 Nmax-dpdch=l时， 所述 HS-DPCCH信道映射到 Q路。  The method according to any one of claims 9 to 11, further comprising: when the maximum number of channels Nmax-dpdch=0, the HS-DPCCH channel is mapped to the I path; when Nmax-dpdch When =1, the HS-DPCCH channel is mapped to the Q path.
15、 一种基站， 其特征在于， 包括：  A base station, comprising:
一个发送单元， 用于向用户设备传输一个 HS-DPCCH, 所述 HS-DPCCH 承载至少两个上行载波的 ACK/NACK 和 CQI, 所述至少两个上行载波的 ACK/NACK和 CQI分别进行了联合编码； 其中，  a sending unit, configured to transmit an HS-DPCCH to the user equipment, where the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK and CQI of the at least two uplink carriers are respectively combined Coding;
所述 HS-DPCCH的 OVSF码的扩频因子为 128; 所述 HS-DPCCH的一个 2毫秒帧中 ACK/NACK占用一个时隙， 所述一个 ACK/NACK时隙的符号个 数为 20; 所述 HS-DPCCH的一个 2毫秒帧中 CQI 占用两个时隙， 所述两个 CQI时隙的符号个数为 40。 The spreading factor of the OVSF code of the HS-DPCCH is 128; the ACK/NACK of one slot of the HS-DPCCH occupies one slot, and the symbols of the one ACK/NACK slot The number is 20; the CQI of the 2 ms frame of the HS-DPCCH occupies two time slots, and the number of symbols of the two CQI time slots is 40.
16、 如权利要求 15所述的基站， 其特征在于，  16. The base station of claim 15 wherein:
所述发送单元， 还用于选择码道传输所述 HS-DPCCH; 其中， 所述码道 为立方度量 CM值最小， 并与现有上行专用链路 OVSF码道正交的码道。  The sending unit is further configured to select a code channel to transmit the HS-DPCCH, where the code channel is a code channel whose cubic metric CM value is the smallest and orthogonal to an existing uplink dedicated link OVSF code channel.
17、 一种基站， 其特征在于， 包括：  17. A base station, comprising:
一个发送单元， 用于向用户设备传输一个 HS-DPCCH, , 所述 HS-DPCCH 承载至少两个上行载波的 ACK/NACK 和 CQI, 所述至少两个上行载波的 ACK/NACK和 CQI分别进行了联合编码； 其中，  a sending unit, configured to transmit an HS-DPCCH to the user equipment, where the HS-DPCCH carries ACK/NACK and CQI of at least two uplink carriers, and ACK/NACK and CQI of the at least two uplink carriers are respectively performed Joint coding;
所述 HS-DPCCH的 OVSF码的扩频因子为 256 ； 所述 HS-DPCCH的一 个 2毫秒帧中 ACK/NACK占用一个时隙 , 所述一个 ACK/NACK时隙的符号 个数为 10; 所述 HS-DPCCH的一个 2毫秒帧中 CQI占用两个时隙， 所述两个 CQI时隙的符号个数为 20;所述 ACK/NACK采用正交相移调制方式进行调制。  The spreading factor of the OVSF code of the HS-DPCCH is 256; the ACK/NACK of one slot of the HS-DPCCH occupies one slot, and the number of symbols of the one ACK/NACK slot is 10; In a 2 ms frame of the HS-DPCCH, the CQI occupies two slots, and the number of symbols of the two CQI slots is 20; the ACK/NACK is modulated by a quadrature phase shift modulation.
PCT/CN2009/071228 2009-04-10 2009-04-10 Method and base station for transmitting high speed dedicated physical control channel WO2010115311A1 (en)

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