Wireless subscriber managing storage of HARQ packets
View Patent ↗Apparatuses of wireless subscribers that manage storage of HARQ packets are disclosed. One embodiment of a wireless subscriber includes receiver circuitry for wirelessly receiving HARQ packets. CRC processing circuitry checks an error status of the received HARQ packets. A HARQ memory controller divides the HARQ packets into HARQ sub-packets for storage in HARQ memory. The HARQ memory controller records storage locations and a storage order of each of the HARQ sub-packets.
1. A wireless device comprising:
receiver circuitry configured to receive a first HARQ packet;
a CRC processing module configured to determine an error status of the received first HARQ packet;
a HARQ memory controller configured to divide the received first HARQ packet into a plurality of HARQ sub-packets; and
a HARQ memory configured to store the plurality of HARQ sub-packets, wherein the HARQ memory controller is further configured to record a storage location and a storage order for each of the plurality of HARQ sub-packets.
2. The wireless device of claim 1 , wherein the CRC processing module, the HARQ memory controller and the HARQ memory are all within a common integrated circuit.
3. The wireless device of claim 1 , wherein the wireless device is configured to receive a plurality of data bursts, wherein a data burst in the plurality of data bursts includes the received first HARQ packet.
4. The wireless device of claim 1 , further comprising circuitry configured to access the received first HARQ packet from the HARQ memory based on the storage location and the storage order of each of the plurality of HARQ sub-packets.
5. The wireless device of claim 4 , wherein the circuitry configured to access the received first HARQ packet is further configured to combine the plurality of HARQ sub-packets to form the received first HARQ packet.
6. The wireless device of claim 1 , wherein the plurality of HARQ sub-packets are stored in non-continuous memory block locations of the HARQ memory.
7. The wireless device of claim 1 , wherein the wireless device supports a WiMax aggregation mode.
8. The wireless device of claim 1 , wherein the HARQ memory controller is further configured to store the received first HARQ packet within the HARQ memory if the received first HARQ packet has a failed error status.
9. The wireless device of claim 1 , wherein the HARQ memory controller is further configured to determine whether to divide the received first HARQ packet.
10. The wireless device of claim 9 , wherein a length of each HARQ sub-packet in the plurality of HARQ sub-packets is determined based on available HARQ memory.
11. The wireless device of claim 10 , wherein each of the plurality of HARQ sub-packets includes a number of bits.
12. The wireless device of claim 9 , wherein a length of each HARQ sub-packet in the plurality of HARQ sub-packets is determined based on a size of one or more unused HARQ memory fragments.
13. The wireless device of claim 1 , wherein the HARQ memory is configured to store the received first HARQ packet before the CRC processing.
14. The wireless device of claim 1 , further comprising:
transmitter circuitry configured to transmit a repeat request when the received first HARQ packet has a fail status.
15. The wireless device of claim 14 , wherein the receiver circuitry is further configured to receive a second HARQ packet, wherein the second received HARQ packet is a retransmission of the first received HARQ packet.
16. The wireless device of claim 15 , further comprising:
circuitry for combining the first received HARQ packet and the second HARQ packet.
17. The wireless device of claim 16 , wherein the CRC processing module is further configured to perform CRC processing on the combined first and second received HARQ packets.
18. The wireless device of claim 17 , wherein the HARQ memory is further configured to store the combined first and second HARQ packets when the error status of the combined packet is failed.
19. The wireless device of claim 17 , wherein the HARQ memory is further configured to store the first HARQ packet when the error status of the combined packet is failed.
20. The wireless device of claim 17 , wherein the HARQ memory is further configured to store the second HARQ packet when the error status of the combined packet is failed.