WO2014187407A1 - 一种解速率匹配的方法、装置和接收侧设备 - Google Patents

一种解速率匹配的方法、装置和接收侧设备 Download PDF

Info

Publication number
WO2014187407A1
WO2014187407A1 PCT/CN2014/079621 CN2014079621W WO2014187407A1 WO 2014187407 A1 WO2014187407 A1 WO 2014187407A1 CN 2014079621 W CN2014079621 W CN 2014079621W WO 2014187407 A1 WO2014187407 A1 WO 2014187407A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
bit
sub
memory
code block
Prior art date
Application number
PCT/CN2014/079621
Other languages
English (en)
French (fr)
Inventor
刘涛
杨海涛
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US15/109,200 priority Critical patent/US10110349B2/en
Priority to EP14801749.4A priority patent/EP3091683B1/en
Publication of WO2014187407A1 publication Critical patent/WO2014187407A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0067Rate matching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0071Use of interleaving
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1835Buffer management
    • H04L1/1845Combining techniques, e.g. code combining

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, an apparatus, and a receiving side device for de-rate matching. Background technique
  • LTE Long Term Evolution
  • 3G Third-generation mobile communication
  • OFDM orthogonal frequency division multiplexing
  • MIMO Multi-Input Multiple-Output
  • next-generation wireless networks that provide peak rates of 100 Mbit/s and uplink 50 Mbit/s in a 20 MHz bandwidth, improving the cell
  • the performance of the edge user improves the cell capacity and spectrum utilization, and the device is reduced.
  • the processing flow of the transmitting side (the eNodeB for the downlink traffic channel and the UE for the uplink traffic channel) is shown in Figure 1.
  • Cyclical Redundancy Check (CRC) check 101 code block partitioning 102, Turbo code 103, rate matching 104, code block concatenation 105, scrambling 106, modulation 107, layer mapping 108, precoding 109.
  • the resource map 110 generates an OFDM symbol 111.
  • the receiving process on the receiving side (the eNodeB for the downlink traffic channel and the UE for the uplink traffic channel) is as shown in FIG. 2, including the receiving antenna data 201, the OFDM symbol 202, the MIMO 203, the demodulation 204, and the descrambling 205.
  • HARQ Hybrid Automatic Repeat Request
  • Rate matching The process structure includes three interleaver sub-processes for processing three channels, one summary bit collection sub-process, and one bit selection and crop sub-process, as shown in FIG. The three channels of data are read into the data by the independent sub-block interleaver, and the dummy element NULL is filled in front of the interleaving matrix with the number of rows R and the number of columns is 32.
  • the solution rate matching is the inverse process of rate matching.
  • the traditional solution rate matching method includes three parts: bit recovery, bit separation, and de-blocking interleaving, as shown in Fig. 4.
  • the specific implementation of the above three processes is:
  • Bit separation corresponds to bit collection in rate matching. It reads the bit-recovered data from the cyclic buffer in a certain order and separates it into three sub-blocks. Wherein, the first Rx32 data is written into the sub-block interleaver S, and the second 2RX32 data is alternately written into the de-subblock interleaver P1 and the de-subblock interleaver P2; ? is the number of rows of the interleave matrix.
  • Interleave block interleaving For 3 sub-blocks, input by column, column exchange and then output by row, and delete the dummy added when sub-block interleaving when outputting data.
  • an embodiment of the present invention provides a method, an apparatus, and a receiving side device for de-rate matching.
  • An embodiment of the present invention provides a method for de-rate matching, including:
  • the output data after the de-sub-block interleaving process is hybridized with the acquired historical data to be processed, and the HARQ combining process is performed, and the HARQ combining result is output.
  • the performing bit recovery/bit separation based on the new data to be processed, and writing the bit recovery/bit separated data into the code block data memory includes:
  • the code block data memory is first cleared, and then data is read from the code block data memory, the data read from the code block data memory and the acquired data.
  • the new data is merged and bit separated and written to the code block data memory.
  • the code block data in the code block memory is divided into two sub-channels: a system bit, a check bit, and a check 2-bit three-way memory, and each channel is divided into two sub-memory according to the order of the data bits separated in the interleave matrix.
  • the first half of each data bit is separated into one sub-memory, the second half is stored in another sub-memory, and three channels have six sub-memory.
  • the de-sub-block interleaving process includes: order of outputting data, calculating an order of sub-block interleaving, obtaining an address in the code block data memory, and reading data.
  • the embodiment of the present invention further provides a device for de-rate matching, the device includes: a parameter processing and control module, configured to acquire task parameters, parse and process the task parameters, and distribute the parameters to other modules;
  • a new data input module configured to acquire and cache new data to be processed
  • Demultiplexing/de-punching module configured to perform bit recovery/bit separation based on the new data to be processed, and write bit-recovered/bit-separated data into the code block data memory;
  • a code block data memory configured to store bit recovery/bit separated data
  • Decomposing a sub-block interleaving module configured to perform deblocking sub-block interleaving processing on data stored in the code block data memory
  • Hybrid automatic repeat request HARQ data input module configured to acquire and cache historical data to be processed
  • the HARQ combining module is configured to combine the data output by the de-blocking block interleaving module with the historical data output by the HARQ data input module;
  • the HARQ data output module is configured to buffer and output HARQ merge results.
  • the performing bit recovery/bit separation based on the new data to be processed, and writing the bit recovery/bit separated data into the code block data memory includes:
  • the de-duplication/de-puncturing module starts at the beginning of each code block process, first clears the code block data memory, and simultaneously reads data from the new data input module and the code block data memory, and merges The code block data memory is written after being separated from the bits.
  • the code block memory is configured to divide system bits, verify 1 bit, and verify 2 bits of three-way storage code block data, and each channel is divided into two sub-memory according to the order of the data bits separated in the interleaving matrix. , which is:
  • the first half of each data bit is separated into one sub-memory, the second half is stored in another sub-memory, and three channels have six sub-memory.
  • the de-sub-block interleaving module is configured to calculate an order of the sub-block interleaving according to the order of the output data, obtain an address in the code block data memory, and read the data.
  • the embodiment of the invention further provides a receiving side device for data communication, and the device comprises the device for de-rate matching according to the foregoing embodiment.
  • the embodiment of the present invention further provides a computer readable storage medium, the storage medium comprising a set of computer executable instructions, the instructions being used to perform the method for de-rate matching according to the embodiment of the present invention.
  • the method, device and receiving side device for de-rate matching provided by the embodiments of the present invention simplify processing complexity, save hardware resource consumption, and improve work efficiency.
  • FIG. 1 is a schematic diagram of a data processing flow of an LTE traffic channel transmitting side in the prior art
  • FIG. 2 is a schematic diagram of a data processing flow of an LTE traffic channel receiving side in the prior art
  • FIG. 3 is a rate of a LTE traffic channel transmitting side in the prior art.
  • Schematic diagram of a matching process
  • FIG. 4 is a schematic diagram of a process of de-rate matching on the receiving side of an LTE traffic channel in the prior art
  • FIG. 5 is a schematic structural diagram of a solution rate matching apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram showing storage symbols of each sub-RAM of a code block data memory when the code block size is an odd multiple of 8 in the embodiment of the present invention
  • FIG. 7 is a schematic diagram showing storage symbols of each sub-RAM of a code block data memory when the code block size is an even multiple of 8 in the embodiment of the present invention
  • FIG. 8 is a flowchart 1 of a method for de-rate matching according to an embodiment of the present invention
  • FIG. 9 is a schematic diagram of deduplication/de-punching in an embodiment of the present invention.
  • FIG. 10 is a flowchart of a process of deduplication/de-punching according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram showing a storage structure of each sub-RAM according to a processing unit when the lower three bits of the effective symbol number of the sub-RAM are 2;
  • each sub-RAM is addressed by a processing unit when the lower three bits of the effective symbol number of the neutron RAM are 6 according to an embodiment of the present invention
  • 15 is a schematic diagram showing relationship between a correction factor, a column number, and an N D when a system bit and a parity 1-bit solution sub-block are interleaved according to an embodiment of the present invention
  • FIG. 16 is a schematic diagram showing relationship between a correction factor, a column number, and an N D when verifying a 2-bit demodulation block interleaving according to an embodiment of the present invention
  • 17 is a schematic diagram showing column numbers of columns before and after interleaving of system bits and parity 1-bit sub-blocks according to an embodiment of the present invention.
  • FIG. 18 is a schematic diagram showing the column numbers of the columns before and after the interleaving of the 2-bit sub-blocks in the embodiment of the present invention
  • FIG. 19 is a flowchart 2 of the processing method of the rate-matching method according to the embodiment of the present invention. detailed description
  • Embodiments of the present invention provide an apparatus and method for implementing a de-rate matching of an LTE traffic channel including HARQ merging.
  • the system sends the rate matching parameter and the HARQ combining parameter of the transport block (TB) to the device; the device reads the new data and historical data to be processed from the system through the data bus, and writes the HARQ merge result. ; Each data soft symbol occupies one byte.
  • a device for de-rate matching mainly includes: a parameter processing and control module 501 configured to acquire and distribute task parameters;
  • the parameter processing and control module 501 parses the task parameters, splits them by code block (CB), and distributes them to other modules;
  • CB code block
  • the new data input module 502 is configured to acquire and cache new data to be processed, and the data does not contain dummy elements; the new data input module 502 reads data from the outside through the data bus, and the internal setting is slow.
  • the cache mechanism is first-in, first-out (FIFO), which can read data by packet, and take out data processing while reading, requiring less storage resources.
  • the deduplication/de-puncturing module 503 is configured to perform bit recovery/bit separation; the deduplication/de-puncturing module 503 starts at each code block processing, first clears the code block data memory 505, and then proceeds from the new data input module 502. The data is simultaneously read in the code block data memory 505, merged and bit separated, and then written into the code block data memory 505; the module uses 8-symbol parallel processing; in the process of merging and writing the code block data memory 505, Complete the understanding of the repetition/de-punching; there is no need to restore the dummy;
  • the de-sub-block interleaving module 504 is configured to perform de-sub-block interleaving; the de-sub-block interleaving module 504 calculates the sub-block interleaving order of the output data, and reads the system bit, the check 1 bit, and the check 2 from the code block data memory 505. Three bits of data, and each data read is 2 symbols in parallel;
  • the code block data memory 505 is configured to store the data block after bit recovery/bit separation and does not include dummy data, that is, the data before the sub-block interleaving.
  • Sub-system bit, check 1 bit, check 2 bit three way, each way is divided into two sub-RAMs, which store half of the three-way data.
  • the two sub-RAMs respectively store the first half and the lower half of the bit data after bit recovery/bit separation, denoted as U p_ ram and dw_ram, the upper half of the system bits are sys_up_ram, and the lower half of the sub-RAM is sys_dw_ram.
  • the code block size must be an integer multiple of 8, and the code block is increased by 4 symbols after Turbo coding.
  • the storage capacity of each sub-RAM is an integer multiple of 8 plus 6, that is, the last address of the sub-RAM stores only 6 valid symbols, in this case, the data format stored in each sub-RAM is as shown in FIG. 6;
  • the storage capacity of each sub-RAM is an integer multiple of 8 plus 2, that is, the last address of the sub-RAM stores only 6 valid symbols.
  • the data format of the next sub-RAM storage is shown in Figure 7.
  • the HARQ merge module 506 is configured to combine the data output by the de-subblock interleave module 504 with the historical data output by the HARQ data input module 507; the HARQ merge module 506 performs parallel processing using 3x2 symbols;
  • the HARQ data input module 507 is configured to acquire and cache historical data to be processed; the module reads data from the outside through the data bus, and internally sets a cache; the cache mechanism in this embodiment is a FIFO, and the data can be read by the packet, and read. At the same time take out the data processing, only need less storage resources;
  • the HARQ data output module 508 is configured to buffer and output the HARQ merge result; the module writes data to the outside through the data bus, and internally sets a cache; the cache mechanism of the embodiment is a FIFO, and the data can be written by the package, and the data is written at the same time. HARQ combined data can be stored, requiring less storage resources.
  • the HARQ data output module 508 can be implemented by an ASIC (Application Specific Integrated Circuit) or a Field-Programmable Gate Array (FPGA).
  • the code block data memory 505 can be solved by a solution. RAM implementation of rate matching devices.
  • a processing flow of a method for de-rate matching according to an embodiment of the present invention is as shown in FIG. 8, and specifically includes the following steps:
  • Steps 801-802 the parameter processing and control module obtains the task parameters, calculates and processes the obtained task parameters, and distributes them to other modules according to the code blocks.
  • Step 803 The new data input module acquires the data to be processed from the outside and temporarily stores it; the data starts from the starting address k 0 of the code block rate matching output, where the dummy data is not included, and the total data amount of one code block For e symbols.
  • the new data input module can be used when there is free space in the FIFO buffer. To initiate a read request to the data bus, each time reading a packet of data; when the deduplication/de-punch module requires data, the data is taken out of the FIFO buffer, converted into a bit width of 8 symbols, and transmitted to the solution repetition/solution Punch module
  • Steps 804-805 after the decoding/de-punching module receives the new code block data, first clear the code block data memory used by the code block; according to FIG. 6 and FIG. 7, each sub-RAM only From the ground kll + 2
  • Address 0 ⁇ stores data, so only this part of RAM needs to be cleared, and 6 sub-RAMs are cleared at the same time.
  • the de-duplication/de-punch module reads the data to be processed from the new data input module by the bit width of 8 symbols, adjusts the data to the format stored in the RAM, and simultaneously calculates the data in the RAM.
  • the corresponding address in the memory is read from the RAM, merged with the new data, and then written back to the original address of the RAM.
  • the schematic diagram of the repetitive/de-puncturing is shown in FIG. When all the e new data of the entire code block are merged and written back, the processing of bit recovery and bit separation is completed.
  • the process of solving the repetition/de-punch can be divided into several small steps, as shown in FIG. 10, as follows:
  • Steps 1001 ⁇ 1004 are used to adjust the new data format taken from the input buffer.
  • Step 1001 Read data from the input buffer, denoted fifo_dat, and the data is high byte.
  • Step 1003 separating the system bit and the check bit, and recording it as dat_sp_sel; because there are a total of system bits, dat_sp_sel needs to fill 4 bytes of zero in the last 8 bytes of the dat_remove_kO system bit; the data is wound in the virtual cache.
  • dat_sp_sel has For the parity bit, the data of the rate matching output is an alternate format of pl_p2, but in rate matching, since the columns of p2 and p1 are inserted into the dummy, the position of the last deleted bit is different, resulting in The position of the two at a time alternates into the format of p2_pl.
  • the bold italicized characters in the figure indicate the dummy element number, and the others indicate the valid data sequence number.
  • pi is a dummy and p2 is valid data, so that after output, the data becomes p2_pl after that, until the last check bit.
  • dat_sp_sel needs to make adjustments, the data position of each two bytes is exchanged after the data from the yellow position.
  • Step 1004 Separate the data of the two sub-RAMs of each path, and record it as dat_ud_sel. It may be on the system bit or on the check bit.
  • the number of valid symbols at the last address of each sub-RAM is 2 or 6. In the case of rate matching, virtual cache wrap may occur, in each case. The number of zero bytes is different.
  • the number of valid symbols in the RAM is ram_dat_sum, the delay to the dat_sp_sel data is dat_sp_sel_dly*, and * is the number of delays. There are several situations:
  • each winding delay is increased by 1 beat.
  • Step 1005 Calculate the dat_ud_sel valid data flag dat_ud_sel_valid.
  • ram_dat_sum[2:0] 2
  • ram_dat_sum[2:0] 6
  • Bay 1 J only ends at p_up_ram or p_dw_ram and adds 4 bytes 0.
  • Each shot has 8 bytes of valid data. According to ud_add_dat_cnt/8, you can know how much data is up_sel_dat relative to sp_sel_dat. Previous steps 1002 and 1003 have calculated the number of data shots added when dat_remove_kO and dat_sp_sel are respectively calculated, and the three are cumulatively ill dat_ud_sel_valid.
  • Steps 1006 ⁇ 1009 are used to calculate the position of the data dat_ud_sel in RAM and read the RAM data at this location:
  • the data is stored in a block of MCU, and the sub-RAM bit width is 8 symbols (8 bytes), storing 2 + 2 valid symbols.
  • the data is processed in 8 bytes parallel, with a unit of 8 bytes, starting with sys_up_ram and validating the valid data in RAM.
  • sys_up_ram For system bits, upper and lower two sub-k l l + 2
  • the sub-RAM in which the data is located, the address in the sub-RAM, and the bit enable can be calculated by the number value.
  • the data that is finally adjusted to the storage structure in the sub RAM is up_sel_dat, and its unit number value should be calculated, denoted as dat_ud_sel_cnt. Proceed as follows: Step 1006, calculating an initial number value of the dat_ud_sel data. If the storage of each sub-RAM is full 8 bytes, then k0[14:3] can be regarded as the original unit number of the input data.
  • dat_remove_kO is zero-added, that is, the data written to the RAM first is the data before dat_remove_kO, which causes the number to move forward; on the other hand, the effective address of the sub-RAM is not full.
  • each end of the sub-RAM may add a part of 0, delaying part of the data to the next unit, which in turn shifts the number; the impact of the two determines the true starting unit number. Divided into the following cases:
  • Step 1007 calculating dat_ud_sel_cnt.
  • the initial value is found in step 1006, and is incremented by 1 each time dat_ud_sel is valid, ie, dat_ud_sel_valid. Return to zero after the maximum value.
  • the maximum value is 6M-3, otherwise it is 6M-1.
  • Step 1008 Calculate the RAM number, address, and bit enable by using ud_sel_dat_cnt. As before Said, comparing the unit number with M, and considering the value of ram_dat_sum[2:0],
  • Step 1009 Read data from the RAM location obtained in step 1008, and record it as dat_ram_rd.
  • step 1010 the dat_ram_rd and the new data dat_ud_sel in the adjusted format are added, and the added result i is dat_comb_wb.
  • Step 1011 Write dat_comb_wb back to the original RAM location obtained in step 1008.
  • the above steps complete the function of bit recovery and bit separation, and only need to process the e data of the code block in the same way, without repeating the region decomposition. Still un-puncturing, there is no need to restore the dummy.
  • Step 806 the HARQ data input module acquires historical data from the outside and temporarily stores it. This data is interleaved after the sub-blocks are interleaved, including system bits, parity 1 bits, parity 2 bits, and no dummy.
  • the HARQ input module can initiate a read request to the data bus when there is free space in the FIFO buffer, and read the data of one packet at a time. When the HARQ merge module needs data, the data is taken out from the FIFO buffer and converted into 3 x 2 symbols. The bit width is transmitted by the HARQ merge module.
  • Step 807 the de-sub-block interleaving module calculates the sub-block interleaving order of the output data, and reads 3 new data of 2 symbols each in parallel from the code block data memory, and sends the new data to the HARQ combining module; There is no buffer, and the de-blocking interleave is performed by using the sub-block interleaving before and after the index address-corresponding relationship ij', and the interleaved index j' is used to read the data from the code block data memory and output to the pre-interleaving index.
  • the sub-block interleaving kernel is to realize the interleaving index transformation of i ⁇ j'.
  • the factor S is related to ⁇ .
  • the dummy elements are also mixed into the columns. From the column transformation relationship, the relationship between the system bit, the correction factor S of the check 1 bit, the column number, and the N D can be obtained as shown in FIG. 15 .
  • the system bits and parity bits are independent of each other.
  • the three channels of data are deinterleaved in parallel.
  • each parity symbol is processed at the same time. If the parity symbols before interleaving exist in different sub-RAMs, the degree of parallelism can be further increased.
  • the sub-block interleaving has 32 columns per column, so if the interleaved column number is even, it is also an even number.
  • the column transformation of the LTE sub-block interleaving is as shown in FIG. According to FIG.
  • the interleaved column number is less than or equal to 15, that is, in the first half of the matrix; when it is odd, the interleaved column number is greater than Equal to 16, which is the second half of the matrix.
  • the column transformation relationship is as shown in Fig. 18.
  • the interleaved column numbers are greater than or equal to 16, that is, in the latter half of the matrix; when it is odd, the interleaved column numbers are less than or equal to 15, That is, in the first half of the matrix.
  • each piece of data is stored in the order of the upper and lower parts before the decomposed sub-blocks are interleaved, so that the parity and parallel processing can be performed, and finally 6 symbols are parallelized.
  • the correspondence between each channel data and sub-RAM is:
  • the data after interleaving the sub-blocks is first HARQ combined with the historical data of the code block, and the merged data is written to the Turbo decoder, and then externally used for the next HARQ process.
  • Historical data comes from the data bus, and the merged data is also written through the data bus. Reading and writing data to the bus is not guaranteed to be continuous. Therefore, the processing flow for interleaving sub-block interleaving may be interrupted at any time.
  • the de-interleave block interleave module operates in units of data packets, that is, each time the data of one sub-packet is continuously taken from the code block memory to perform inter-sub-block interleaving, the sub-packet is not interrupted. After the sub-packet is completed, check whether the HARQ merge module has data access and then process the next sub-packet. This requires the HARQ merge module to wait until there is at least one sub-packet data in the HARQ data input module, and the HARQ data output module has at least one vacant space for accommodating a sub-packet to initiate a data processing request to the de-sub-block interleaving module.
  • the de-blocking interleave sets a history request counter, and each time a request is received, the requested sub-packet length is added. When the counter is not zero, the interleave address can be calculated and the data is read from the code block memory. The data counter of a 3 X 2 symbol is decremented by one.
  • Step 808 The HARQ combining module reads the historical data from the HARQ data input module, and merges the output data of the decomposed sub-block interleaving. The result is output to an external decoding module and to the HARQ data output module. Whether or not the result of HARQ merging and merging is output can be configured in the task parameters to improve the flexibility of the device in the system.
  • the HARQ data output module temporarily stores the HARQ merge result and writes it to the outside.
  • This module converts the bit width data of 3 X 2 symbols input by the HARQ merge module into system bit width and writes it into the FIFO buffer; the HARQ output module initiates a write request to the data bus when there is enough data in the FIFO buffer. Write a small packet of data; when the FIFO buffer is about to be filled At this time, the HARQ merge module needs to be notified to suspend operation to prevent FIFO overflow.
  • Step 810 When all the data of one code block is written out, it indicates that the code block has been processed. If the code block is that the de-rate matching task is the last code block, then the task is completed, otherwise the next code block is processed.
  • Step 1901 Obtain new data to be processed, perform bit recovery/bit separation based on the new data to be processed, and obtain bit recovery/bit separated data into the code block data memory;
  • Step 1902 the code block The data stored in the data memory is subjected to de-blocking interleaving processing.
  • Step 1903 performing HARQ combining processing on the output data after the de-sub-block interleaving process and the acquired historical data to be processed, and outputting the HARQ combining result.
  • an embodiment of the present invention further provides a receiving side device for data communication, where the receiving side device includes the apparatus for de-rate matching according to the embodiment of the present invention.
  • the receiving side device may be an eNodeB for the downlink traffic channel, and the receiving side device may be the UE for the uplink traffic channel.
  • the embodiment of the present invention further provides a computer readable storage medium, the storage medium comprising a set of computer executable instructions, the instructions being used to perform the method for de-rate matching according to the embodiment of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)

Abstract

本发明公开了一种解速率匹配的方法、装置和接收侧设备,方法包括:获取待处理的新数据,并基于所述待处理的新数据执行比特恢复/比特分离,得到比特恢复/比特分离后的数据写入码块数据存储器;对所述码块数据存储器中存储的数据进行解子块交织处理;将所述解子块交织处理后的输出数据与获取的待处理的历史数据进行混合自动重传请求HARQ合并处理,并将HARQ合并结果输出。

Description

一种解速率匹配的方法、 装置和接收侧设备 技术领域
本发明涉及通信领域, 尤其涉及一种解速率匹配的方法、 装置和接收 侧设备。 背景技术
长期演进 (LTE, Long Term Evolution )是第三代移动通信 ( 3G, 3rd-Generation )技术的演进, 它改进并增强了 3G的空中接入技术, 以正交 频分复用 ( OFDM, Orthogonal Frequency Division Multiplexing )和多输入 多输出 ( MIMO , Multiple-Input Multiple-Output )技术为基础的新一代无线 网络, 在 20MHZ频谱带宽下能够提供下行 100Mbit/s与上行 50Mbit/s的峰 值速率, 改善了小区边缘用户的性能, 提高了小区容量和频谱利用率, 降 件, 对于 LTE上下行业务信道来说, 发送侧 (对下行业务信道为 eNodeB , 对上行业务信道为 UE ) 的处理流程如图 1所示, 经过循环冗余码(CRC, Cyclical Redundancy Check )校验 101、 码块分割 102、 Turbo编码 103、 速 率匹配 104、码块级联 105、 加扰 106、 调制 107、 层映射 108、预编码 109、 资源映射 110、产生 OFDM符号 111。在接收侧(对下行业务信道为 eNodeB , 对上行业务信道为 UE )接收处理流程如图 2所示, 包括接收天线数据 201、 解 OFDM符号 202、 解 MIMO 203、 解调 204、 解扰 205、 解码块级联 206、 解速率匹配 207、 混合自动重传请求 (HARQ , Hybrid Automatic Repeat Request )合并 208、 解码 209、 解 CRC 210等。
每个码块对应一个速率匹配过程, 每一个速率匹配的输入为 Turbo 编 码的输出, 即并行的三路: 、、 )和 42) (k = 0, ... , K-l)。 所述速率匹配 过程结构上包含 3个对三路分别进行处理的交织器子过程、 1个汇总的比特 收集子过程、 以及 1个比特选择和裁剪子过程, 如图 3所示。 三路数据经 过各自独立的子块交织器, 按行读入数据, 并在行数为 R、 列数为 32的交 织矩阵的前面填充哑元 NULL, 按列交换之后, 逐列读出数据; 然后, 将 三路经过交织后的数据 )、 )和 ) (k = 0, K-1)汇总到比特收集模块, 依次输入第一路数据, 交替放置第二路和第三路数据; 最后, 从 k0开始, 跳过比特收集模块数据中的哑元 NULL, 依次取 e个有效的数据, 作为速率 匹配的输出。
解速率匹配是速率匹配的逆过程, 传统的解速率匹配方法包括三个部 分: 比特恢复、 比特分离、 解子块交织, 如图 4。 上述三个过程的具体实现 为:
比特恢复:
( 1 )求出以下参数: 每个码块的长度、 速率匹配子块交织时添加的哑 元个数 Nd、 循环緩存器的长度 Ne6、 哑元在循环緩存器中的位置、 速率匹配 输出时的起始地址 、 码块的物理信道比特数量
( 2 )将输入序列从 地址开始, 依次输入到循环緩存器中, 若当前地 址为哑元, 往循环緩存器写 0, 否则将输入数据写入; 当地址递增到 N£6时, 重新回到 0地址;
( 3 )根据 e和 N£6进行解重复或者解打孔过程, 也就是速率匹配中比特 选择和裁剪的逆过程; 解重复就是对比特选择剪裁时重复发送的数据进行 合并, 解打孔就是将比特选择剪裁过程中打掉的数据恢复为 0。
比特分离: 比特分离与速率匹配中的比特收集对应, 它将比特恢复后 的数据从循环緩存器中执照一定顺序读出,分离成 3个子块。其中,前 Rx32 个数据写入子块交织器 S, 后 2RX32个数据交替写入解子块交织器 P1和解 子块交织器 P2; ?是交织矩阵的行数。 解子块交织: 对 3 个子块, 分别按列输入, 列交换后再按行输出, 并 在输出数据时删除子块交织时添加的哑元。
现有技术中对于 LTE的解速率匹配方法, 存在处理方法复杂、 硬件资 源消耗巨大、 处理时间较长的问题。 发明内容
为解决以上技术问题, 本发明实施例提供了一种解速率匹配的方法、 装置和接收侧设备。
本发明实施例提供一种解速率匹配的方法, 包括:
获取待处理的新数据, 并基于所述待处理的新数据执行比特恢复 /比特 分离 , 得到比特恢复 /比特分离后的数据写入码块数据存储器;
对所述码块数据存储器中存储的数据进行解子块交织处理;
将所述解子块交织处理后的输出数据与获取的待处理的历史数据进行 混合自动重传请求 HARQ合并处理, 并将 HARQ合并结果输出。
其中, 所述基于待处理的新数据执行比特恢复 /比特分离, 将比特恢复 / 比特分离后的数据写入码块数据存储器, 包括:
在每个码块处理开始, 先对所述码块数据存储器清零, 再从所述码块 数据存储器中读取数据 , 将所述从码块数据存储器中读取的数据以及获取 的所述新数据进行合并和比特分离后写入所述码块数据存储器。
其中, 所述码块存储器中的码块数据分系统位、 校验 1位、 校验 2位 三路存储, 每路又根据数据比特分离后在交织矩阵中的顺序, 分为两个子 存储器, 即:
每路数据比特分离后的前半部分存入一个子存储器, 后半部分存入另 一个子存储器, 三路共有 6个子存储器。
其中, 所述解子块交织处理包括: 居输出数据的顺序, 计算其进行 子块交织后的次序, 得到其在所述码块数据存储器中的地址并读出数据。 本发明实施例还提供一种解速率匹配的装置, 该装置包括: 参数处理与控制模块, 配置为获取任务参数, 解析、 处理所述任务参 数并分发给其它各模块;
新数据输入模块, 配置为获取和緩存待处理的新数据;
解重复 /解打孔模块, 配置为基于所述待处理的新数据执行比特恢复 / 比特分离 , 将比特恢复 /比特分离后的数据写入所述码块数据存储器;
码块数据存储器, 配置为存储比特恢复 /比特分离后的数据;
解子块交织模块, 配置为对所述码块数据存储器中存储的数据进行解 子块交织处理;
混合自动重传请求 HARQ数据输入模块, 配置为获取和緩存待处理的 历史数据;
HARQ合并模块, 配置为将所述解子块交织模块输出的数据和 HARQ 数据输入模块输出的历史数据合并;
HARQ数据输出模块, 配置为緩存和输出 HARQ合并结果。
其中, 所述基于待处理的新数据执行比特恢复 /比特分离, 将比特恢复 / 比特分离后的数据写入码块数据存储器, 包括:
所述解重复 /解打孔模块在每个码块处理开始, 先对所述码块数据存储 器清零 , 再从所述新数据输入模块中以及码块数据存储器中同时读取数据 , 进行合并和比特分离后写入所述码块数据存储器。
其中, 所述码块存储器配置为, 分系统位、 校验 1位、 校验 2位三路 存储码块数据, 每路又根据数据比特分离后在交织矩阵中的顺序, 分为两 个子存储器, 即:
每路数据比特分离后的前半部分存入一个子存储器, 后半部分存入另 一个子存储器, 三路共有 6个子存储器。
其中, 所述解子块交织模块配置为, 根据输出数据的顺序, 计算其进 行子块交织后的次序, 得到其在所述码块数据存储器中的地址并读出数据。 本发明实施例还提供一种数据通信的接收侧设备, 所述设备包括前述 实施例所述的解速率匹配的装置。
本发明实施例还提供了一种计算机可读存储介质 , 所述存储介质包括 一组计算机可执行指令, 所述指令用于执行本发明实施例所述的解速率匹 配的方法。
本发明实施例所提供的一种解速率匹配的方法、 装置和接收侧设备, 简化了处理复杂度, 节省了硬件资源消耗, 提高了工作效率。 附图说明
图 1为现有技术中 LTE业务信道发送侧的数据处理流程示意图; 图 2为现有技术中 LTE业务信道接收侧的数据处理流程示意图; 图 3为现有技术中 LTE业务信道发送侧的速率匹配的处理过程示意图; 图 4为现有技术中 LTE业务信道接收侧的解速率匹配的处理过程示意 图;
图 5为本发明实施例的一种解速率匹配装置的结构示意图;
图 6为本发明实施例中码块大小是 8的奇数倍时, 码块数据存储器各 个子 RAM的存储符号示意图;
图 7为本发明实施例中码块大小是 8的偶数倍时, 码块数据存储器各 个子 RAM的存储符号示意图;
图 8为本发明实施例的一种解速率匹配的方法的处理流程图一; 图 9为本发明实施例中解重复 /解打孔的示意图;
图 10为本发明实施例的解重复 /解打孔的处理流程图;
图 11为本发明实施例中 nd=20, R=4时, 系统位和校验 1位路数据列 变换前后哑元的位置示意图;
图 12为本发明实施例中 nd=20, R=4时, 校验 2位数据列变前换后哑 元的位置示意图; 图 13为本发明实施例中子 RAM有效符号数低三位为 2时,各子 RAM 按处理单元编址的存储结构示意图;
图 14为本发明实施例的中子 RAM有效符号数低三位为 6 时, 各子 RAM按处理单元编址的存储结构示意图;
图 15为本发明实施例中系统位和校验 1位解子块交织时的修正因子和 列号、 ND的关系示意图;
图 16为本发明实施例中校验 2位解子块交织时的修正因子和列号、 ND 的关系示意图;
图 17为本发明实施例中系统位和校验 1位子块交织前后各列的列号示 意图;
图 18为本发明实施例中校验 2位子块交织前后各列的列号示意图; 图 19为本发明实施例的一种解速率匹配的方法的处理流程图二。 具体实施方式
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 本发明实施例提供一种用于 LTE业务信道包括 HARQ合并的解速率匹 配的实现装置和方法。 在此实施例中, 系统将传输块(TB ) 的速率匹配参 数和 HARQ合并参数下发给本装置; 本装置通过数据总线从系统读取待处 理的新数据和历史数据, 写出 HARQ合并结果; 每个数据软符号占用一个 字节。
本发明实施例的一种解速率匹配的装置如图 5所示, 主要包括: 参数处理与控制模块 501 , 配置为获取和分发任务参数; 任务参数以
TB为单位, 参数处理与控制模块 501解析任务参数, 将其按码块( CB )拆 分, 并分发给其它各模块;
新数据输入模块 502, 配置为获取和緩存待处理的新数据, 此数据中不 含哑元; 新数据输入模块 502通过数据总线从外部读取数据, 内部设置緩 存, 緩存机制为先入先出 (FIFO ), 可按包读取数据, 读取的同时取出数据 处理, 只需要较少的存储资源;
解重复 /解打孔模块 503, 配置为执行比特恢复 /比特分离; 解重复 /解打 孔模块 503在每个码块处理开始, 先对码块数据存储器 505清零, 再从新 数据输入模块 502中以及码块数据存储器 505 中同时读取数据, 进行合并 和比特分离, 再写入码块数据存储器 505; 本模块采用 8符号并行处理; 合 并和写入码块数据存储器 505的过程中, 自然完成了解重复 /解打孔; 不需 要恢复哑元;
解子块交织模块 504, 配置为执行解子块交织; 解子块交织模块 504计 算输出数据的子块交织后次序,从码块数据存储器 505中读系统位、校验 1 位、 校验 2位三路数据, 并且读取的每一路数据都是 2符号并行的;
码块数据存储器 505 , 配置为存储码块经过比特恢复 /比特分离且不包 含哑元的数据, 即解子块交织前的数据。 分系统位、 校验 1位、 校验 2位 三路, 每一路又划分为两个子 RAM, 分别存储三路数据的一半。 子 RAM 的存储量应大于半个最大的码块, 即 6148/2=3074; 为配合解重复 /解打孔模 块 503的 8符号并行处理,子 RAM的位宽为 8个符号,深度为 3074/8=385; 使用单端口 RAM, 每个子 RAM同时读出一个符号数据, 即可实现 3x2符 号并行的解子块交织处理。
两个子 RAM分别存储一路数据在比特恢复 /比特分离后的上半部分和 下半部分, 记为 Up_ram和 dw_ram, 系统比特的上半部分子 RAM 就是 sys_up_ram, 下半部分子 RAM就是 sys_dw_ram, 其它两路命名类推。 根 据 TS36.212协议, 码块大小 一定是 8的整数倍, 码块经 Turbo编码后会 增加 4个符号。 当 是 8的奇数倍时, 每个子 RAM的存储量是 8的整数倍 加 6, 即子 RAM最后一个地址只存储 6个有效符号, 此情况下各子 RAM 存储的数据格式如图 6所示; 当 是 8的偶数倍时, 每个子 RAM的存储量 是 8的整数倍加 2, 即子 RAM最后一个地址只存储 6个有效符号, 此情况 下各子 RAM存储的数据格式如图 7所示。
HARQ合并模块 506, 配置为将解子块交织模块 504输出的数据和 HARQ数据输入模块 507输出的历史数据合并; HARQ合并模块 506采用 3x2符号并行处理;
HARQ数据输入模块 507, 配置为获取和緩存待处理的历史数据; 本模 块通过数据总线从外部读取数据, 内部设置緩存; 本实施例的緩存机制为 FIFO, 可按包读取数据, 读取的同时取出数据处理, 只需要较少的存储资 源;
HARQ数据输出模块 508, 配置为緩存和输出 HARQ合并结果; 本模 块通过数据总线向外部写出数据, 内部设置緩存; 本实施例的緩存机制为 FIFO, 可按包写数据, 写出的同时又可以存储 HARQ合并完的数据, 只需 要较少的存储资源。
需要说明的是, 本发明实施例所述的参数处理与控制模块 501、新数据 输入模块 502、 解重复 /解打孔模块 503、 解子块交织模块 504、 HARQ合并 模块 506、 HARQ数据输入模块 507、 HARQ数据输出模块 508可以由解速 率匹配的装置的专用集成电路( ASIC, Application Specific Integrated Circuit ) 或可编程逻辑阵列 (FPGA, Field - Programmable Gate Array ) 实现; 码块 数据存储器 505可以由解速率匹配的装置的 RAM实现。
本发明实施例的一种解速率匹配的方法的处理流程如图 8所示, 具体 包括以下步骤:
步骤 801~802,参数处理与控制模块获取任务参数,对获取的任务参数 进行计算和处理后, 按码块分发给其它模块。
步骤 803 ,新数据输入模块从外部获取待处理的数据并暂存起来; 此数 据是从码块速率匹配输出的起始地址 k0处开始, 其中不含哑元, 一个码块 的总数据量为 e个符号。 新数据输入模块在 FIFO緩存还有空余空间时就可 以向数据总线发起读请求, 每次读一个小包的数据; 在解重复 /解打孔模块 需要数据时, 把数据从 FIFO緩存取出, 转换成 8个符号的位宽, 传送给解 重复 /解打孔模块;
步骤 804~805 , 解重复 /解打孔模块收到新的码块数据后, 先将此码块 会用到的码块数据存储器清零; 根据图 6和图 7所示,每个子 RAM只从地 k l l + 2
址 0~ 存储数据, 因此,只需要对 RAM的这部分清零, 6个子 RAM 同时清零。
在码块数据存储器清零后, 解重复 /解打孔模块按 8个符号的位宽从新 数据输入模块读取待处理数据, 将数据调整为对齐在 RAM中存储的格式; 同时计算数据在 RAM中的对应地址, 从 RAM中读取数据, 与新数据合并 后, 再回写到 RAM的原地址处, 解重复 /解打孔的示意图如图 9所示。 当 整个码块的 e个新数据全部合并和回写完时, 比特恢复和比特分离的处理就 完成了。
其中, 解重复 /解打孔的过程可以划分为若干个小步骤, 如图 10所示, 具体如下:
步骤 1001~1004用于调整从输入緩存取的新数据格式。
步骤 1001 , 从输入緩存中读取数据, 记为 fifo_dat, 数据是高位字节在 步骤 1002, 将 fifo_dat从 k0-k0[2:0]处, 做整 8 字节的对齐, 即若 k0[2:0] !=0 , 就在低位字节补零, 从整 8 字节处开始产生数据; 记为 dat_remove_kO, 其有效数据比 fifo_dat的多 1拍。
步骤 1003 , 将系统比特和校验比特相分离, 记为 dat_sp_sel; 因为系统 比特总共有 个, 所以 dat_sp_sel需要在 dat_remove_kO系统比特的最后 一个 8字节补 4个字节零; 数据在虚拟緩存每绕卷一圈后, dat_sp_sel的有
Figure imgf000011_0001
对在校验比特, 速率匹配输出的数据是 pl_p2交替的格式, 但在速率 匹配中, 由于 p2和 p 1插入哑元的列不一样 , 也就是最后被删除比特的位 置不一样, 导致会有一次两者的位置交替变为 p2_pl的格式。
图 11和图 12以哑元个数 nd=20, R=4为例说明 pl/p2交换次序的情况, 图中加粗的斜体字表示哑元序号, 其他表示有效数据序号。 在图 12中阴影 的位置处, pi是一个哑元, 而 p2是有效数据, 这样输出时, 在此处之后数 据就变成了 p2_pl 的格式了, 一直到最后一个校验比特都是如此。 在 dat_sp_sel需要做调整, 从黄色位置的数据后, 就将每两个字节的数据位置 交换。
步骤 1004, 将每一路的两个子 RAM的数据相分离, 记为 dat_ud_sel。 可能是在系统比特上或是校验比特上,每个子 RAM最后一个地址的有效 符号个数有 2、 6两种情况, 在速率匹配时还可能发生了虚拟緩存绕卷, 每 种情况下添加的零字节数不相同。 记子 RAM 中的有效符号个数为 ram_dat_sum, 对 dat_sp_sel数据的延返 i己为 dat_sp_sel_dly*, *为延返的拍 数。 有以下几种情况:
情况(1 ), 位于系统比特并且 ram_dat_sum[2:0]=2, 还未发生绕卷: 在 sys_up_ram, dat_ud_sel <= sp_sel_dat_dlyl ;
在 sys_up_ram 的 最 后 , 力口 6byte 0 , dat_ud_sel <= {sp_sel_dat_dlyl[63:48] , 48'dO} ;
在 sys_dw_ram, 已力口 6byte 0, dat_ud_sel <= {sp_sel_dat_dly2[47:0] , sp_sel_dat_dlyl [63:48 } ;
在 sys_dw_ram的最后,本应增力口 6个 byte 0,但之前 sp分离已力口 4byte, 因此此处只加 2byte 0, dat_ud_sel <= {sp_sel_dat_dly2[47:0] , 16'dO} ;
在 p_up_ram , 之前已力口 8byte 0 , 即延返一 白, dat_ud_sel <= sp_sel_dat_dly2; 在 p_up_ram的最后 , p_up_ram总共存 k + 4个数据 , 最后有 4个有效数 据, 再加 4个 byte 0, dat_ud_sel <= {sp_sel_dat_dly2[63:32] , 32'd0} ;
在 p_dw_ram , 之 前 已 增 力口 12byte 0 , dat_ud_sel <= { sp_sel_dat_dly3 [31:0] , sp_sel_dat_dly2[63:32] };
在 p_dw_ram 的 最 后 , 再 增 力口 4byte 0 , dat_ud_sel <=
{sp_sel_dat_dly3[31:0] , 32'dO}
第一次绕卷后的 sys_up_ram,之前已增加 16byte 0,延返两拍, dat_ud_sel <= sp_sel_dat_dly3;
之后重复上面的过程, 每一次绕卷延迟会增加两拍。
情况(2 ), 位于系统比特并且 ram_dat_sum[2:0]=6, 还未绕卷: 在 sys_up_ram, dat_ud_sel <= sp_sel_dat_dlyl ;
在 sys_up_ram最后,力口 2byte 0, dat_ud_sel <= {sp_sel_dat_dlyl [63: 16] , 16'dO} ;
在 sys_dw_ram, 已力口 2byte 0, dat_ud_sel <= {sp_sel_dat_dly2[15:0] , sp_sel_dat_dly 1 [63 : 16 } ;
在 sys_dw_ram的最后,本应增力口 2个 byte 0,但之前 sp分离已力口 4byte 0 , 因此此处无需加零, dat_ud_sel <= {sp_sel_dat_dly2[15:0] , sp_sel_dat_dly 1 [63: 16 }; 到此处添加的 0被抵消;
在 P_up_ram, 之前无力口 0, dat_ud_sel <= sp_sel_dat_dlyl ;
在 p_up_ram的最后 , p_up_ram总存 k + 4个数据 ,最后有 4个有效数据 , 加 4个 byte 0, dat_ud_sel <= {sp_sel_dat_dlyl[63:32] , 32'dO} ;
在 p_dw_ram,之前已增力口 4byte 0, dat_ud_sel <= { sp_sel_dat_dly2[31 :0] , sp_sel_dat_dly 1[63:32] };
在 p_dw_ram 的 最 后 , 再 增 力口 4byte0 , dat_ud_sel <= {sp_sel_dat_dly2[31:0] , 32'dO} ; °f ^。 暴 i —舍 ' ??^^丁 ¥晷^
=> ps_pn_iBp Ό
Figure imgf000014_0001
'[0:/^]£K i3S- ds } => ps— pn—jBp '〇 si q^ Ό ^t r
¾^ds ^ Ό 91^q9 ^ψ:Έί^ m— Λψ— sXs
■ { [8t7:£9] lPKPs_ds '[0: ½K ps- ds } => ps—pn—iBp Ό d/i \ n[ ^^ { ^r 'xuBJ_ ~s s ^^^¾|^:— ^
=> ps—pn—iBp Ό
Figure imgf000014_0002
=> ps_pn_iBp I ^rjt '(F Q8 'ui _dn_sXs ^S/^^c—^
■{ V.Zi '[0:ΐε] ΐΡ ρ- ps- ds}
Figure imgf000014_0003
oi
[^:£9] IP— Kps- ds
' [0: ΐ
Figure imgf000014_0004
备^ r p蕈^害 ' 17 褂 ^ uiBj_dn_d ' ^害 um dxrd
ijXlp—lBp— ps— ds => ps—pn—iBp ' m— dn—d ς
Figure imgf000014_0005
I。 暴 i^F ^ —舍 ' ? 丁 晷^
。 lp—lBp—ps—ds =>
lZ96.0/M0iN3/13d 在 p_up_ram的最后, p_up_ram总存 k + 4个符号,最后有 4个有效符号 , 再加 4个 byte 0 , dat_ud_sel <= { sp_sel_dat_dly 1[63:32] , 32'dO} ;
在 p— dw— ram,之前已增力口 4byte 0, dat_ud_sel <= { sp_sel_dat_dly2[31 :0] , sp_sel_dat_dlyl [63:32] } ;
在 p_dw_ram 的 最 后 , 再 增 力口 4byte 0 , dat_ud_sel <=
{sp_sel_dat_dly2[31:0] , 32'dO} ;
第一次绕卷后的 sys— up— ram,之前已增力口 8byte 0,延迟 1拍, dat_ud_sel <= sp_sel_dat_dly2;
第一次绕卷后的 sys_up_ram 最后, 再增力。 2byte 0 , dat_ud_sel <= { sp_sel_dat_dly2[63: 16] , 16'dO} ;
第一次绕卷后的 sys— dw— ram, 之前已增力口 lObyte 0 , dat_ud_sel <= { sp_sel_dat_dly3[15:0] , sp_sel_dat_dly2[63: 16] } ;
第一次绕卷后的 sys_dw_ram最后, 此处应添加 2byte 0, 但在 sp分离 时已力口 4byte , 无需补 0 , dat_ud_sd <= { sp_sel_dat_dly3[15:0], sp_sel_dat_dly2[63: 16] } ; 到此处总共添加 8byte 0;
第一次绕卷后的 p_up_ram 最后, 之前已添力口 8byte0, dat_ud_sel <= sp_sel_dat_dly2。
之后重复上面的过程, 每一次绕卷延迟增加 1拍。
实际中, 并不一定都位于 up_ram; 但是上述在处理过程中, 即使从 dw_ram开始也补齐了从 up_ram开始情况下的 0 的字节数, 再加上产生 dat_remove_kO和 dat_sp_sel时所补的 0的字节数, 最后产生的 dat_ud_sel 一定和 RAM中存储的格式一致。
步骤 1005, 计算 dat_ud_sel有效数据标志 dat_ud_sel_valid。
用计数器 ud_add_dat_cnt来表示 ud分离处理过程中增加的 0字节数。 在起始位置, 只有处于 dw_ram才会添加 0。 当 在 sys_dw_ram时, 若 ram_dat_sum[2:0]=2, 起始增力口了 6byte 0; 若 ram_dat_sum[2:0] = 6, 起 始处增加了 2by teO。 当 在 p_dw_ram时, 起始增加了 4by te 0。
数据处理过程中: 若 ram_dat_sum[2:0]=2, 每到 sys_up_ram结尾, 增 力口 6byte 0; i'J sys_dw_ram结¾ , 增力口 2byte 0; i'J p_up_ram或 p_dw_ram 结尾,增力口 4byte 0。若 ram_dat_sum[2:0] = 6 ,贝1 J只有到 p_up_ram或 p_dw_ram 结尾, 增加 4byte 0。
每一拍有效数据有 8 个字节, 根据 ud_add_dat_cnt/8 , 即可知道 up_sel_dat相对于 sp_sel_dat增加了多少拍数据。 而之前步骤 1002和 1003 已分别计算得出 dat_remove_kO和 dat_sp_sel时增加的数据拍数, 三者累加 可 ill dat_ud_sel_valid。
步骤 1006~1009用于计算数据 dat_ud_sel在 RAM中的位置,并读出此 位置的 RAM数据:
数据在 RAM中是分子块存储的, 子 RAM位宽为 8个符号( 8byte ), 存储 2 + 2个有效符号。处理数据时是 8byte并行, 以每 8byte为一个单元, 从 sys_up_ram开始对 RAM中的有效数据编号。 对系统比特, 上下两个子 k l l + 2
RAM各存储 M = 个单元的数据; 而对校验比特,存在 pl/p2交替间
8
隔的处理, 每 8yte中分别 4byte的 pi和 p2, 即每个 RAM的一个地址中会 有来自两个单元的数据。
当 /2 + 2的低 3位为 2时, 一个校验比特 RAM内会有 2M-1个处理单 元, 各子 RAM按处理单元编址的存储结构如图 13所示。
当 /2 + 2的低 3位为 6时,一个校验比特 RAM内会有 2M个处理单元, 各子 RAM按处理单元编址的存储结构如图 14所示。
从图 13和图 14可以看出, 通过编号值就能计算数据所处的子 RAM、 在子 RAM 中的地址、 位使能。 最终调整为子 RAM 中存储结构的数据是 up_sel_dat, 应该计算它的单元编号值, 记为 dat_ud_sel_cnt。 步骤如下: 步骤 1006,计算 dat_ud_sel数据的初始编号值。若每个子 RAM的存储 都是满 8byte的, 则 k0[14:3]可视为输入数据的原始单元编号。 但在处理过 程中, 对 dat_remove_kO 做了加零处理, 即最先写入 RAM 的数据是 dat_remove_kO之前的数据, 这会使编号前移; 另一方面, 子 RAM的有效 地址内并未写满有效数据, 每到子 RAM的结尾可能会添部分 0, 把部分数 据延后到下个单元, 这又使编号后移; 两者的影响综合决定真正的起始单 元编号。 分以下几种情况:
一、 起始于 sys_up_ram, 两种作用都不存在, 起始编号就是 k0[14:3]。 二、 起始于 sys_dw_ram , dat_ud_sel 需要在 dat_remove_kO 前力口 8 - + 2} [2: 0]个 byte 0,但由于 sys_up_ram最后一个有效地址没有写满 ,数 据又要延后 8 -{ + 2}[2 : 0]个 byte, 两种影响相互抵消;起始编号是 k0[14:3]。 三、起始于 p_up_ram。 若 ram_dat_sum[2:0]=2 , 贝1 J在 sys_ram中总共延 后了 12byte; 而第一拍数据在 sp分离时加的 4个 byte 0, 抵消部分延迟, 总共延迟了 8byte。 因此, 最终起始编号是 k0[14:3]+l ;
ram_dat_sum[2:0]=6 , 则在 sys_ram中总共延后了 4byte; 而第一拍的数 据在 sp分离时加 4个 byte 0, 两者的影响相互 ·!氏消。 因此, 最终起始编号 是 k0[14:3]。
四、 起始于 p_dw_ram。 相比于起始于 p_up_ram, 在 p_up_ram结尾会 延迟 4拍, 却又添加了 4byte 0, 相互 4氐消。 因此, 起始于 p_dw_ram和起 始于 p_up_ram时的情况是一样的, 即 ram_dat_sum[2:0]=2 时起始编号是 k0[14:3]+l , ram_dat_sum[2:0]=6时起始编号是 k0[14:3]。
步骤 1007 , 计算 dat_ud_sel_cnt。 初始值在步骤 1006已求出, 以后每 当 dat_ud_sel有效, 即 dat_ud_sel_valid 时计数加 1。 到最大值后归零, ram_dat_sum尾数为 2时, 最大值为 6M-3 , 否则为 6M- 1。
步骤 1008 , 通过 ud_sel_dat_cnt计算 RAM号、 地址、 位使能。 如前文 所述, 将单元编号和 M 相比较, 并考虑 ram_dat_sum[2:0]的值,
Figure imgf000018_0001
由图 13和图 14就可得到结果。
步骤 1009 ,从步骤 1008求出的 RAM位置中读取数据,记为 dat_ram_rd。 步骤 1010, 将 dat_ram_rd和已调整格式的新数据 dat_ud_sel相加, 相 加的结果 i己为 dat_comb_wb。
步骤 1011 , 将 dat_comb_wb再写回到步骤 1008求出的 RAM原位置; 以上步骤完成了比特恢复和比特分离的功能, 它只需要用相同的方法 处理完码块的 e个数据, 不用区分解重复还是解打孔, 也无需恢复哑元。 步骤 806, HARQ数据输入模块从外部获取历史数据并暂存起来。此数 据是解子块交织后的, 包括系统位、 校验 1位、 校验 2位三路, 不含有哑 元。 HARQ输入模块在 FIFO緩存还有空余空间时就可以向数据总线发起读 请求, 每次读一个小包的数据; 在 HARQ合并模块需要数据时, 把数据从 FIFO緩存取出, 转换成 3 x 2个符号的位宽, 传送 HARQ合并模块。
步骤 807,解子块交织模块计算输出数据的子块交织后次序,从码块数 据存储器中并行读取 3路每路 2个符号的新数据, 给 HARQ合并模块; 由于解子块交织模块自身没有緩存器, 解子块交织是利用子块交织前 后索引地址之间存在的——对应关系 i j' , 使用交织后的索引 j'将数据从 码块数据存储器中读出, 输出到交织前索引 处, 以完成解子块交织, 即采 用交织读的方式。 于是, 解子块交织核心就是要实现 i→ j '的交织索引变换。
具体实现是: 记交织前 CB块中的第 个元素, 其添加哑元后在交织前 矩阵中的序号为 Γ , 在交织后矩阵的输出序号为 j'。 由 可以求出 Γ , 进而求 出 j'。 显然, '是由哑元个数决定的, 即 i' = i + ND ; 而 '→J'和 Γ所在列之 前(含此列) 的哑元总个数有关。 引入一个和 相关的修正因子 S , 可记 为 j = f(i', S)。 由子块交织的算法可知: f (i ', S) = P(i '[4 : 0]) * R + i '[12: 5] - S(P(i '[4: 0])) 修正因子 S是和 ^相关的。 对交织的矩阵, 哑元也混杂到各列中, 由 列变换关系, 可以得到系统位、 校验 1位的修正因子 S和列号、 ND的关系 如图 15所示。
对于校验 2位, 计算过程一致, 但关系式会有所不同, 如下:
I = z + ND - 1
j = P(i '[4 : 0]) * i? + '[12 : 5] - 5 \P(i '[4: 0]))
校验 2位的修改因子 S和列号、 ND的关系如图 16所示。
由上述步骤即可以得出各路数据 ί→ j '的索引变换关系。
另一方面, 系统位和校验位是相互独立的, 为加快处理速度, 对三路 数据并行进行解交织操作。 本实施例每一路奇偶符号同时处理, 若交织前 的奇偶符号存在于不同的子 RAM, 并行度又可进一步增加。 子块交织每列 有 32列, 因此若交织前列号为偶数, 则 也为偶数。 LTE子块交织的列变 换如图 17所示。 根据图 17所示, 对于系统位和校验 1位, 当 ί为偶数时, 交织后的列号均小于等于 15 , 也就是在矩阵前半部分; 当 为奇数时, 交织 后的列号均大于等于 16, 也就是在矩阵后半部分。
对校验 2位, 存在循环移位的操作, 列变换关系如图 18所示。 根据图 18所示, 对于校验 2位, 当 为偶数时, 交织后的列号均大于等于 16, 也 就是在矩阵后半部分; 当 为奇数时, 交织后的列号均小于等于 15 , 也就是 在矩阵前半部分。
根据前文所述, 每一路数据都是按分解子块交织前的顺序, 分上下两 部分存储的, 因此可奇偶并行处理, 最终达到 6符号并行。 各路数据和子 RAM的对应关系是:
系统位偶符号: 位于 sys_up_ram
系统位奇符号: 位于 sys_dw_ram 校验 1位偶符号: 位于 pl_up_ram
校验 1位奇符号: 位于 pl_dw— ram
校验 2位偶符号: 位于 p2_dw_ram
校险 2位奇符号: 位于 p2_up_ram
解子块交织后的数据要先和本码块的历史数据做 HARQ合并, 合并后 的数据除了给 Turbo译码器, 还要再写出外部用于下次 HARQ进程。 历史 数据来自于数据总线, 合并后的数据也通过数据总线写出。 向总线读写数 据不能保证一定能连续。 因此, 解子块交织的处理流水随时可能中断。
为了简化处理, 解子块交织模块采用数据包为单位操作, 即每次连续 从码块存储器取一个子包的数据做解子块交织, 子包中间不中断。 子包结 束后, 检查 HARQ合并模块是否有数据接求, 再处理下个子包。 这就要求 HARQ合并模块必须等到 HARQ数据输入模块内至少有一个子包的数据, 并且 HARQ数据输出模块中至少有容纳一个子包的空余空间才能向解子块 交织模块发起数据处理请求。 为消除两个子包间的气泡, 在一个子包还未 处理完时就可接受下个子包的请求。 配合这种机制, 解子块交织设置一个 历史请求计数器, 每收到一次请求时加上请求的子包长度, 计数器不为零 时可以计算交织地址并从码块存储器中读取数据, 每处理一次 3 X 2符号的 数据计数器减 1。
步骤 808 , HARQ合并模块从 HARQ数据输入模块中读取历史数据, 和解子块交织的输出数据合并。结果输出给外部的译码模块,同时给 HARQ 数据输出模块。 是否进行 HARQ合并以及合并的结果是否输出, 可以在任 务参数中配置, 以提高装置在系统中应用的灵活性。
步骤 809, HARQ数据输出模块将 HARQ合并结果暂存, 并写出到外 部。本模块将 HARQ合并模块输入的 3 X 2个符号的位宽的数据,转换成系 统位宽, 写入 FIFO緩存中; HARQ输出模块在 FIFO緩存里足够的数据时 向数据总线发起写请求,每次写出一个小包的数据; 当 FIFO緩存将要写满 时, 需通知 HARQ合并模块暂停工作以防 FIFO溢出。
步骤 810, 当一个码块的数据全部写出时, 表示此码块已处理完成。 若 此码块是解速率匹配任务是最后一个码块, 则此任务完成, 否则接着处理 下一个码块。
综上所述, 本发明实施例的解速率匹配的方法可以概括为如图 19所示 的处理流程:
步骤 1901 , 获取待处理的新数据, 并基于所述待处理的新数据执行比 特恢复 /比特分离 , 得到比特恢复 /比特分离后的数据写入码块数据存储器; 步骤 1902,对所述码块数据存储器中存储的数据进行解子块交织处理; 步骤 1903, 将所述解子块交织处理后的输出数据与获取的待处理的历 史数据进行 HARQ合并处理 , 并将 HARQ合并结果输出。
另外, 本发明实施例还提供了一种数据通信的接收侧设备, 该接收侧 设备包括上述本发明实施例的解速率匹配的装置。 其中, 对下行业务信道, 所述接收侧设备可以为 eNodeB; 对上行业务信道, 所述接收侧设备可以为 UE。
本发明实施例还提供了一种计算机可读存储介质 , 所述存储介质包括 一组计算机可执行指令, 所述指令用于执行本发明实施例所述的解速率匹 配的方法。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种解速率匹配的方法, 包括:
获取待处理的新数据, 并基于所述待处理的新数据执行比特恢复 /比 特分离 , 得到比特恢复 /比特分离后的数据写入码块数据存储器;
对所述码块数据存储器中存储的数据进行解子块交织处理; 将所述解子块交织处理后的输出数据与获取的待处理的历史数据进 行混合自动重传请求 HARQ合并处理 , 并将 HARQ合并结果输出。
2、 根据权利要求 1所述解速率匹配的方法, 其中, 所述基于待处理 的新数据执行比特恢复 /比特分离 , 将比特恢复 /比特分离后的数据写入码 块数据存储器, 包括:
在每个码块处理开始, 先对所述码块数据存储器清零, 再从所述码 块数据存储器中读取数据, 将所述从码块数据存储器中读取的数据以及 获取的所述新数据进行合并和比特分离后写入所述码块数据存储器。
3、 根据权利要求 1所述解速率匹配的方法, 其中, 所述码块存储器 中的码块数据分系统位、 校验 1位、 校验 2位三路存储, 每路又根据数 据比特分离后在交织矩阵中的顺序, 分为两个子存储器, 即:
每路数据比特分离后的前半部分存入一个子存储器, 后半部分存入 另一个子存储器, 三路共有 6个子存储器。
4、 根据权利要求 1所述解速率匹配的方法, 其中, 所述解子块交织 处理包括: 根据输出数据的顺序, 计算其进行子块交织后的次序, 得到 其在所述码块数据存储器中的地址并读出数据。
5、 一种解速率匹配的装置, 该装置包括:
参数处理与控制模块, 配置为获取任务参数, 解析、 处理所述任务 参数并分发给其它各模块;
新数据输入模块, 配置为获取和緩存待处理的新数据; 解重复 /解打孔模块, 配置为基于所述待处理的新数据执行比特恢复 / 比特分离 , 将比特恢复 /比特分离后的数据写入所述码块数据存储器; 码块数据存储器, 配置为存储比特恢复 /比特分离后的数据; 解子块交织模块, 配置为对所述码块数据存储器中存储的数据进行 解子块交织处理;
混合自动重传请求 HARQ数据输入模块, 配置为获取和緩存待处理 的历史数据;
HARQ合并模块,配置为将所述解子块交织模块输出的数据和 HARQ 数据输入模块输出的历史数据合并;
HARQ数据输出模块, 配置为緩存和输出 HARQ合并结果。
6、 根据权利要求 5所述解速率匹配的装置, 其中, 所述基于待处理 的新数据执行比特恢复 /比特分离 , 将比特恢复 /比特分离后的数据写入码 块数据存储器, 包括:
所述解重复 /解打孔模块在每个码块处理开始, 先对所述码块数据存 储器清零, 再从所述新数据输入模块中以及码块数据存储器中同时读取 数据 , 进行合并和比特分离后写入所述码块数据存储器。
7、 根据权利要求 5所述解速率匹配的装置, 其中, 所述码块存储器 配置为, 分系统位、 校验 1位、 校验 2位三路存储码块数据, 每路又根 据数据比特分离后在交织矩阵中的顺序, 分为两个子存储器, 即:
每路数据比特分离后的前半部分存入一个子存储器, 后半部分存入 另一个子存储器, 三路共有 6个子存储器。
8、 根据权利要求 5所述解速率匹配的装置, 其中, 所述解子块交织 模块配置为, 根据输出数据的顺序, 计算其进行子块交织后的次序, 得 到其在所述码块数据存储器中的地址并读出数据。
9、 一种数据通信的接收侧设备, 所述设备包括权利要求 5至 8任一 项所述的解速率匹配的装置。
10、 一种计算机可读存储介质, 所述存储介质包括一组计算机可执 行指令, 所述指令用于执行权利要求 1-4任一项所述的解速率匹配的方 法。
PCT/CN2014/079621 2013-12-31 2014-06-10 一种解速率匹配的方法、装置和接收侧设备 WO2014187407A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/109,200 US10110349B2 (en) 2013-12-31 2014-06-10 Rate dematching method, apparatus and receiving-side device
EP14801749.4A EP3091683B1 (en) 2013-12-31 2014-06-10 Rate dematching method, device and receiving-side apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310754083.9 2013-12-31
CN201310754083.9A CN104753653B (zh) 2013-12-31 2013-12-31 一种解速率匹配的方法、装置和接收侧设备

Publications (1)

Publication Number Publication Date
WO2014187407A1 true WO2014187407A1 (zh) 2014-11-27

Family

ID=51932953

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/079621 WO2014187407A1 (zh) 2013-12-31 2014-06-10 一种解速率匹配的方法、装置和接收侧设备

Country Status (4)

Country Link
US (1) US10110349B2 (zh)
EP (1) EP3091683B1 (zh)
CN (1) CN104753653B (zh)
WO (1) WO2014187407A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109768843A (zh) * 2018-12-18 2019-05-17 京信通信系统(中国)有限公司 速率匹配方法、解速率匹配方法、装置和基站

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104753653B (zh) * 2013-12-31 2019-07-12 中兴通讯股份有限公司 一种解速率匹配的方法、装置和接收侧设备
US10075187B2 (en) * 2015-03-15 2018-09-11 Qualcomm Incorporated MCS/PMI/RI selection and coding/interleaving mechanism for bursty interference and puncturing handling
JP2019149589A (ja) * 2016-07-08 2019-09-05 シャープ株式会社 基地局装置、端末装置、通信方法、および、集積回路
WO2019095190A1 (en) * 2017-11-16 2019-05-23 Qualcomm Incorporated Reduced overhead error detection code design for decoding a codeword
US11418294B2 (en) * 2019-09-20 2022-08-16 Qualcomm Incorporated Single step in-place operation method for 5G NR de-interleaving, de-rate matching, and HARQ combination

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080130510A1 (en) * 2006-12-01 2008-06-05 Electronics And Telecommunications Research Institute Method and apparatus for de-rate matching in communication system
CN102546082A (zh) * 2010-12-23 2012-07-04 联芯科技有限公司 解速率匹配方法及装置
CN102594490A (zh) * 2011-01-17 2012-07-18 中兴通讯股份有限公司 一种解速率匹配的方法及装置

Family Cites Families (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291406A (en) * 1979-08-06 1981-09-22 International Business Machines Corporation Error correction on burst channels by sequential decoding
US5781133A (en) * 1996-08-05 1998-07-14 Seagate Technology, Inc. Method and apparatus for implementing run length limited codes
WO2000065866A1 (en) * 1999-04-26 2000-11-02 Lucent Technologies Inc. Path switching according to transmission requirements
FI109251B (fi) * 1999-09-10 2002-06-14 Nokia Corp Tiedonsiirtomenetelmä, radiojärjestelmä, radiolähetin ja radiovastaanotin
US6952454B1 (en) * 2000-03-22 2005-10-04 Qualcomm, Incorporated Multiplexing of real time services and non-real time services for OFDM systems
US6473467B1 (en) * 2000-03-22 2002-10-29 Qualcomm Incorporated Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system
US6735180B1 (en) * 2000-06-30 2004-05-11 Nokia Mobile Phones, Ltd. Method of sending feedback information in a fast automatic repeat request forming part of an overall wireless communication system
US6961388B2 (en) * 2001-02-01 2005-11-01 Qualcomm, Incorporated Coding scheme for a wireless communication system
US6771706B2 (en) * 2001-03-23 2004-08-03 Qualcomm Incorporated Method and apparatus for utilizing channel state information in a wireless communication system
US7072413B2 (en) * 2001-05-17 2006-07-04 Qualcomm, Incorporated Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion
US20020199153A1 (en) * 2001-06-22 2002-12-26 Fall Thomas G. Sampling method for use with bursty communication channels
US20040017860A1 (en) * 2002-07-29 2004-01-29 Jung-Tao Liu Multiple antenna system for varying transmission streams
US7002900B2 (en) * 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US7313190B2 (en) * 2003-03-11 2007-12-25 Texas Instruments Incorporated Efficient bit interleaver for a multi-band OFDM ultra-wideband system
US7126928B2 (en) * 2003-08-05 2006-10-24 Qualcomm Incorporated Grant, acknowledgement, and rate control active sets
US7221680B2 (en) * 2003-09-02 2007-05-22 Qualcomm Incorporated Multiplexing and transmission of multiple data streams in a wireless multi-carrier communication system
US20050068921A1 (en) * 2003-09-29 2005-03-31 Jung-Tao Liu Multiplexing of physical channels on the uplink
US8526412B2 (en) * 2003-10-24 2013-09-03 Qualcomm Incorporated Frequency division multiplexing of multiple data streams in a wireless multi-carrier communication system
EP1534039B1 (en) * 2003-11-19 2013-01-16 Samsung Electronics Co., Ltd. Apparatus and method for transmitting and receiving common control information in a wireless communication system
KR100770902B1 (ko) * 2004-01-20 2007-10-26 삼성전자주식회사 고속 무선 데이터 시스템을 위한 가변 부호율의 오류 정정부호 생성 및 복호 장치 및 방법
JP3875693B2 (ja) * 2004-03-24 2007-01-31 株式会社東芝 Lpc符号を用いた符号化ビットのマッピング方法及び送信装置
JP4765260B2 (ja) * 2004-03-31 2011-09-07 日本電気株式会社 データ処理装置およびその処理方法ならびにプログラムおよび携帯電話装置
WO2006057238A1 (ja) * 2004-11-24 2006-06-01 Matsushita Electric Industrial Co., Ltd. レートマッチング装置、無線送信装置、無線受信装置およびレートマッチング方法
JP2008522528A (ja) * 2004-12-02 2008-06-26 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ データ・ブロック冗長バージョン復号用ステーク継承ターボ復号器
US8826093B2 (en) * 2005-01-19 2014-09-02 Qualcomm Incorporated Power saving method for coded transmission
US7929407B2 (en) * 2005-03-30 2011-04-19 Nortel Networks Limited Method and system for combining OFDM and transformed OFDM
CN101258685A (zh) * 2005-07-20 2008-09-03 诺基亚公司 用于ofdm系统的自适应多级分组编码调制
KR100651847B1 (ko) * 2005-09-05 2006-12-01 엘지전자 주식회사 다중 순환 부호화를 이용한 터보 부호의 부호화/복호 장치및 방법
KR100929068B1 (ko) * 2005-09-28 2009-11-30 삼성전자주식회사 비트 인터리빙, 심볼 인터리빙, 심볼 매핑을 이용하는무선통신 시스템을 위한 수신 장치 및 방법
CN101444057B (zh) * 2006-03-17 2013-04-24 北电网络有限公司 发射和接收mimo信号的系统和方法
JP4930512B2 (ja) * 2006-09-29 2012-05-16 富士通株式会社 無線通信システム、送信装置および受信装置
US8379738B2 (en) * 2007-03-16 2013-02-19 Samsung Electronics Co., Ltd. Methods and apparatus to improve performance and enable fast decoding of transmissions with multiple code blocks
US8750917B2 (en) * 2007-05-18 2014-06-10 Qualcomm Incorporated Multiplexing and power control of uplink control channels in a wireless communication system
WO2008151061A1 (en) * 2007-05-31 2008-12-11 Interdigital Technology Corporation Channel coding and rate matching for lte control channels
US7899125B2 (en) * 2007-06-18 2011-03-01 Intel Corporation Method, device, and apparatus for multi-stream multi-band transmission
US8009758B2 (en) * 2007-06-20 2011-08-30 Samsung Electronics Co., Ltd Apparatus and method for channel-interleaving and channel-deinterleaving data in a wireless communication system
US8189559B2 (en) * 2007-07-23 2012-05-29 Samsung Electronics Co., Ltd. Rate matching for hybrid ARQ operations
US20100027704A1 (en) * 2007-09-10 2010-02-04 Industrial Technology Research Institute Method and Apparatus for Data Transmission Based on Signal Priority and Channel Reliability
US7986741B2 (en) * 2007-09-28 2011-07-26 Samsung Electronics Co., Ltd. Method and apparatus of improved circular buffer rate matching for turbo-coded MIMO-OFDM wireless systems
US8386903B2 (en) * 2007-10-31 2013-02-26 Futurewei Technologies, Inc. Bit reverse interleaving methods for QAM modulation in a wireless communication system
JP5547081B2 (ja) * 2007-11-02 2014-07-09 華為技術有限公司 音声復号化方法及び装置
CN101431357B (zh) * 2007-11-08 2012-11-07 电信科学技术研究院 一种数据传输的方法和装置
US7924763B2 (en) * 2007-12-11 2011-04-12 Motorola Mobility, Inc. Method and appratus for rate matching within a communication system
US9130712B2 (en) * 2008-02-29 2015-09-08 Google Technology Holdings LLC Physical channel segmentation in wireless communication system
KR101565607B1 (ko) * 2008-04-18 2015-11-03 코닌클리케 필립스 엔.브이. 개선된 듀얼 반송파 변조 프리코딩
US8345794B2 (en) * 2008-04-29 2013-01-01 Qualcomm Incorporated Encoded control channel information interleaving
US8055973B2 (en) * 2009-06-05 2011-11-08 Stmicroelectronics, Inc. Channel constrained code aware interleaver
CN101621363B (zh) * 2008-07-01 2012-09-12 上海无线通信研究中心 一种多符号间比特重排序方法及使用该方法的系统
US8565326B2 (en) * 2008-07-08 2013-10-22 Industrial Technology Research Institute System and method for bit allocation and interleaving
KR101573072B1 (ko) * 2008-08-27 2015-12-01 엘지전자 주식회사 무선통신 시스템에서 제어정보 전송방법
US8355666B2 (en) * 2008-09-10 2013-01-15 Qualcomm Incorporated Apparatus and method for interference-adaptive communications
KR20100071490A (ko) * 2008-12-19 2010-06-29 한국전자통신연구원 디레이트 매칭하는 방법 및 그 장치
US8799735B2 (en) * 2008-12-31 2014-08-05 Mediatek Inc. Channel interleaver having a constellation-based unit-wise permuation module
CN101771418B (zh) * 2009-01-07 2014-11-05 华为技术有限公司 编码方法及其装置
US20100235721A1 (en) * 2009-03-13 2010-09-16 Lsi Corporation Rate Matching and De-Rate Matching for an LTE Transport Channel
JP5212539B2 (ja) * 2009-03-25 2013-06-19 富士通株式会社 無線通信システム、移動局装置、基地局装置、及び無線通信システムにおける無線通信方法
EP2424143A1 (en) * 2009-04-24 2012-02-29 Panasonic Corporation Wireless communication device and wireless communication method
US8560696B2 (en) * 2009-04-28 2013-10-15 Intel Corporation Transmission of advanced-MAP information elements in mobile networks
US9178658B2 (en) * 2009-05-06 2015-11-03 Futurewei Technologies, Inc. System and method for channel interleaver and layer mapping in a communications system
EP2432148B1 (en) * 2009-05-13 2019-07-03 Panasonic Intellectual Property Corporation of America Radio communication device and radio communication method
US8537750B2 (en) * 2009-06-02 2013-09-17 Futurewei Technologies, Inc. System and method for transport block size design for multiple-input, multiple-output (MIMO) in a wireless communications system
TWI440383B (zh) * 2009-06-21 2014-06-01 Ablaze Wireless Inc 多使用者、多模式基帶訊號方法、時間/頻率同步及接收器架構
JPWO2010150512A1 (ja) * 2009-06-22 2012-12-06 パナソニック株式会社 無線通信基地局装置、無線通信端末装置、制御チャネル送信方法および制御チャネル受信方法
CN101931969B (zh) * 2009-06-26 2013-03-20 中兴通讯股份有限公司 一种高速下行共享控制信道的信息检测方法及装置
US20110182385A1 (en) * 2009-07-30 2011-07-28 Qualcomm Incorporated Method and apparatus for reliability-aided pruning of blind decoding results
US20120151302A1 (en) * 2010-12-10 2012-06-14 Qualcomm Incorporated Broadcast multimedia storage and access using page maps when asymmetric memory is used
KR20110044938A (ko) * 2009-10-25 2011-05-03 엘지전자 주식회사 Sa-프리앰블을 전송하는 방법 및 기지국과, 상기 sa-프리앰블 수신하는 방법 및 사용자기기
US8423861B2 (en) * 2009-11-19 2013-04-16 Lsi Corporation Subwords coding using different interleaving schemes
WO2011096646A2 (en) * 2010-02-07 2011-08-11 Lg Electronics Inc. Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas
KR101802518B1 (ko) * 2010-03-03 2017-11-29 엘지전자 주식회사 무선 통신 시스템에서 상향링크 제어 정보 전송 방법 및 장치
CN102214144B (zh) * 2010-04-02 2014-03-12 中兴通讯股份有限公司 一种harq存储器的分层管理方法和系统
EP2599228B1 (en) * 2010-07-30 2015-05-06 Telefonaktiebolaget LM Ericsson (publ) Decoding techniques for tail-biting codes
US8958370B2 (en) * 2010-08-10 2015-02-17 Lg Electronics Inc. Method and apparatus for controlling transmission power in wireless communication system
CN102404072B (zh) * 2010-09-08 2013-03-20 华为技术有限公司 一种信息比特发送方法、装置和系统
CN102412850B (zh) * 2010-09-25 2014-02-05 中兴通讯股份有限公司 Turbo码并行交织器及其并行交织方法
CN102447521B (zh) * 2010-09-30 2016-10-05 重庆重邮信科通信技术有限公司 一种解速率匹配方法及装置
CN101986584A (zh) * 2010-10-22 2011-03-16 中国科学院计算技术研究所 一种3gpp lte中的解速率匹配装置和方法
JP2012099989A (ja) * 2010-11-01 2012-05-24 Fujitsu Ltd 無線通信装置および復号処理方法
JP5663096B2 (ja) * 2010-11-10 2015-02-04 ゼットティーイー コーポレイション アップリンク制御情報の伝送方法及びシステム、符号化されたシンボル数の決定方法及び装置
US9281924B2 (en) * 2011-04-13 2016-03-08 Qualcomm Incorporated Method and apparatus for generating various transmission modes for WLAN systems
CN103166747B (zh) * 2011-12-14 2017-12-29 中兴通讯股份有限公司 一种harq合并的方法及装置
CN104581897B (zh) * 2013-10-21 2019-08-23 南京中兴新软件有限责任公司 功率控制方法、装置及基站
CN104753653B (zh) * 2013-12-31 2019-07-12 中兴通讯股份有限公司 一种解速率匹配的方法、装置和接收侧设备
CN106576186B (zh) * 2014-08-21 2020-01-14 Lg 电子株式会社 发送广播信号的装置、接收广播信号的装置、发送广播信号的方法、及接收广播信号的方法
US9819445B1 (en) * 2016-05-05 2017-11-14 Mbit Wireless, Inc. Method and apparatus for joint rate matching and deinterleaving

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080130510A1 (en) * 2006-12-01 2008-06-05 Electronics And Telecommunications Research Institute Method and apparatus for de-rate matching in communication system
CN102546082A (zh) * 2010-12-23 2012-07-04 联芯科技有限公司 解速率匹配方法及装置
CN102594490A (zh) * 2011-01-17 2012-07-18 中兴通讯股份有限公司 一种解速率匹配的方法及装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109768843A (zh) * 2018-12-18 2019-05-17 京信通信系统(中国)有限公司 速率匹配方法、解速率匹配方法、装置和基站
CN109768843B (zh) * 2018-12-18 2021-09-03 京信网络系统股份有限公司 速率匹配方法、解速率匹配方法、装置和基站

Also Published As

Publication number Publication date
US10110349B2 (en) 2018-10-23
US20160329990A1 (en) 2016-11-10
EP3091683A1 (en) 2016-11-09
EP3091683B1 (en) 2020-07-01
CN104753653B (zh) 2019-07-12
EP3091683A4 (en) 2017-08-23
CN104753653A (zh) 2015-07-01

Similar Documents

Publication Publication Date Title
WO2014187407A1 (zh) 一种解速率匹配的方法、装置和接收侧设备
US8958330B2 (en) De-rate matching method and device for downlink traffic channel in long term evolution
US8433987B2 (en) Method for high-efficient implementation of de-rate matching including HARQ combining for LTE
WO2016165575A1 (zh) 一种实现码块分割的方法及装置
US20030014709A1 (en) Transmitter, receiver, and communication method
US8843799B2 (en) Serial processing method, parallel processing method of bit rate matching and device thereof
KR101983032B1 (ko) 방송 및 통신 시스템에서 패킷 송수신 장치 및 방법
US8488662B2 (en) Receiver bit rate processing
EP3306844B1 (en) Unequal error protection-based data transmission method and apparatus
US9444494B2 (en) Systems and methods for network coding using convolutional codes
CN110430010A (zh) 信息处理的方法、设备和通信系统
JP5451757B2 (ja) 無線通信装置及び無線通信方法
WO2014090045A1 (zh) Td-scdma上行传输信道处理方法
EP2056504B1 (en) A code multiplexing method and system for high speed downlink shared channel
WO2014048351A1 (zh) 时分复用的前向纠错编码方法及装置
JP2013524634A (ja) キャリアアグリゲーションを用いたシステムの拡張された周波数ダイバーシティ技法
WO2011095115A1 (zh) 一种解交织方法和装置
CN109412749B (zh) 数据传输方法及装置
US11695517B2 (en) HARQ management to enhance performance, reduce overhead and latency
WO2008028419A1 (fr) Procédé et système d&#39;entrelacement/désentrelacement dans un système de communication
TW201406094A (zh) 對harq的傳輸塊進行存儲和解碼的方法及裝置
CN115276891A (zh) 数据传输方法、装置及可读存储介质
WO2018141292A1 (zh) 数据处理方法及设备
JP2007089107A (ja) 無線通信装置及びマッピング方法
Lenzi et al. Optimized rate matching architecture for a LTE-Advanced FPGA-based PHY

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14801749

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 15109200

Country of ref document: US

REEP Request for entry into the european phase

Ref document number: 2014801749

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2014801749

Country of ref document: EP