Rate dematching method, apparatus and receiving-side device
View Patent ↗The present disclosure discloses a rate dematching method, device and receiving-side apparatus-. The method includes: acquiring new data to be processed, executing bit recovery/bit separation based on the new data to be processed, and writing data obtained after bit recovery/bit separation into a code block data memory; conducting sub-block deinterleaving processing on data stored in the code block data memory; and conducting hybrid automatic repeat request (HARQ) combination processing on output data after sub-block deinterleaving processing and acquired history data to be processed, and outputting HARQ combination results.
1. A rate dematching method, comprising:
a receiving side acquiring new data to be processed from a transmitting side, performing bit recovery and bit separation on the new data to be processed, and writing data which have been subjected to the bit recovery and bit separation into a code block data memory;
applying sub-block deinterleaving processing to data stored in the code block data memory; and
applying hybrid automatic repeat request (HARQ) combination processing to output data which have been subjected to sub-block deinterleaving processing and acquired history data to be processed, and outputting HARQ combination results to a decoder to be decoded;
wherein performing bit recovery and bit separation on the new data to be processed, and writing data which have been subjected to the bit recovery and bit separation into a code block data memory comprise:
when processing each code block, zero clearing the code block data memory, reading data from the code block data memory, combining data read from the code block memory and the new data acquired, applying bit separation to combined data, and writing data which have been subjected to bit separation into the code block data memory.
2. The rate dematching method according to claim 1 , wherein the code block data in the code block memory are stored in three branches which comprise system bits, a first parity bit and a second parity bit,
a first half part of each branch of data which have been subjected to bit separation is stored into one sub-memory, a second half part of each branch of data which have been subjected to bit separation is stored into another sub-memory, and the three branches of data are stored in a total of six sub-memories.
3. The rate dematching method according to claim 1 , wherein the sub-block deinterleaving processing comprises: calculating a sequence of data having been subjected to sub-block interleaving according to a sequence of output data which have been subjected to the sub-block deinterleaving, obtaining an address of the output data in the code block data memory, and reading out data.
4. A rate dematching apparatus, configured on a receiving side, comprising:
a parameter processing and controlling module, configured to acquire a task parameter, parse and process the task parameter and distribute the task parameters to other modules;
a new data input module, configured to acquire new data to be processed from a transmitting side and cache the new data to be processed;
a de-repetition and de-punching module, configured to perform bit recovery and bit separation on the new data to be processed, and write data which have been subjected to the bit recovery and bit separation into a code block data memory;
the code block data memory, configured to store the data which have been subjected to the bit recovery and bit separation;
a sub-block deinterleaving module, configured to apply sub-block deinterleaving processing to data stored in the code block data memory;
a hybrid automatic repeat request (HARQ) data input module, configured to acquire and cache history data to be processed;
an HARQ combination module, configured to combine data output by the sub-block deinterleaving module and the history data output by the HARQ data input module; and
an HARQ data output module, configured to cache and output HARQ combination results to a decoder to be decoded;
wherein performing bit recovery and bit separation on the new data to be processed, and writing data which have been subjected to bit recovery and bit separation into a code block data memory comprise:
when processing each code block, by the de-repetition and de-punching module, zero clearing the code block data memory, reading data from the new data input module and the code block data memory simultaneously, and applying bit separation to combined data, and writing data which have been subjected to bit separation into the code block data memory.
5. The rate dematching apparatus according to claim 4 , wherein the code block data memory is configured to store code block data in three branches which comprise system bits, a first parity bit and a second parity bit,
a first half part of each branch of data which have been subjected to bit separation is stored into one sub-memory, a second half part of each branch of data which have been subjected to bit separation is stored into another sub-memory, and the three branches of data are stored in a total of six sub-memories.
6. The rate dematching apparatus according to claim 4 , wherein the sub-block deinterleaving module is configured to calculate a sequence of the output data which have been subjected to sub-block interleaving according to a sequence of output data, obtain an address of the output data in the code block data memory, and read out data.
7. A receiving-side device for data communication, comprising the rate dematching apparatus of claim 4 .
8. A receiving-side device for data communication, comprising the rate dematching apparatus of claim 5 .
9. A receiving-side device for data communication, comprising the rate dematching apparatus of claim 6 .
10. A non-transitory computer-readable storage medium, configured on a receiving side, comprising a set of computer executable instructions for executing a rate dematching method-which comprises:
acquiring new data to be processed from a transmitting side, performing bit recovery and bit separation on the new data to be processed, and writing data which have been subjected to the bit recovery and bit separation into a code block data memory;
applying sub-block deinterleaving processing to data stored in the code block data memory; and
applying hybrid automatic repeat request (HARQ) combination processing to output data which have been subjected to sub-block deinterleaving processing and acquired history data to be processed, and outputting HARQ combination results to a decoder to be decoded;
wherein performing bit recovery and bit separation on the new data to be processed, and writing data which have been subjected to the bit recovery and bit separation into a code block data memory comprise:
when processing each code block, zero clearing the code block data memory, reading data from the code block data memory, combining data read from the code block memory and the new data acquired, applying bit separation to combined data, and writing data which have been subjected to bit separation into the code block data memory.
11. The non-transitory computer-readable storage medium according to claim 10 , wherein the code block data in the code block memory are stored in three branches which comprise system bits, a first parity bit and a second parity bit,
a first half part of each branch of data which have been subjected to bit separation is stored into one sub-memory, a second half part of each branch of data which have been subjected to bit separation is stored into another sub-memory, and the three branches of data are stored in a total of six sub-memories.
12. The non-transitory computer-readable storage medium according to claim 10 , wherein the sub-block deinterleaving processing comprises: calculating a sequence of data having been subjected to sub-block interleaving according to a sequence of output data, obtaining an address of the output data in the code block data memory, and reading out data.