Patent ID: 8694731
Filing Date: 2014-04-08
Classification: G06F,H04L

Abstract:
1. A method for storing hybrid automatic repeat request (HARQ) data, the method comprising: when receiving new data of a coded block, a HARQ processor writing the new data into a high rate buffer memory (Cache) and a channel decoder; the Cache writing the new data into a data memory of the Cache or into an external memory; and when receiving retransmitted data of the coded block, the HARQ processor obtaining previous data corresponding to the retransmitted data from the data memory of the Cache or the external memory through the Cache, combining the retransmitted data and the previous data, and writing the combined data into the Cache and the channel decoder; the Cache writing the combined data into the data memory of the Cache or the external memory; wherein, the data memory comprises one or more Cache lines; the step of the Cache writing the new data or the combined data into the data memory of the Cache comprises: writing the new data or the combined data into a Cache line of the data memory, and recording a tag of the Cache line in a tag memory, the tag being a high address of the new data or the combined data stored in the Cache line; prior to when receiving retransmitted data of the coded block, the HARQ processor obtaining previous data corresponding to the retransmitted data, the method further comprises: sending a control signal of reading the previous data to the Cache; when receiving the control signal of reading the previous data, the Cache searching the tag memory to determine whether a tag identical with the high address of the retransmitted data exists, if yes, the previous data being stored in the Cache line corresponding to the tag, and the Cache reading the previous data from the Cache line to the HARQ processor; or else, the previous data not being stored in the data memory of the Cache, and the Cache reading the previous data in the external memory to a buffer in the Cache, and then to the HARQ processor.