Hybrid automatic repeat request block error rate control for wireless communications
View Patent ↗Systems, methods, and software for hybrid automatic repeat request (HARQ) block error rate (BLER) control in wireless communications are provided herein. A wireless access system receives a media packet. The wireless access system also determines a first time difference between an allowable end-to-end delay for the media packet and a first consumed end-to-end delay for the media packet. The wireless access system also processes the first time difference to select a first HARQ BLER and transfers the media packet from the wireless access system using the first HARQ BLER.
1. A method of operating a wireless access system for hybrid automatic repeat request (HARQ) block error rate (BLER) control in wireless communications comprising:
receiving a media packet;
determining a first time difference between an allowable end-to-end delay for the media packet and a first consumed end-to-end delay for the media packet;
processing the first time difference to select a first HARQ BLER;
transferring the media packet from the wireless access system using the first HARQ BLER;
identifying a HARQ negative acknowledgement (NACK) for the media packet;
in response to the NACK for the media packet, determining a second time difference between the allowable end-to-end delay for the media packet and a second consumed end-to-end delay for the media packet;
processing the second time difference to select a second HARQ BLER; and
initiating a transfer process for the media packet based on the second HARQ BLER.
2. The method of claim 1 wherein initiating the transfer process for the media packet based on the second HARQ BLER comprises re-transferring the media packet from the wireless access system using the second HARQ BLER.
3. The method of claim 2 , wherein the second HARQ BLER is lower than the first HARQ BLER.
4. The method of claim 1 wherein initiating the transfer process for the media packet based on the second HARQ BLER comprises blocking re-transfer of the media packet from the wireless access system based on the second HARQ BLER.
5. The method of claim 4 wherein the second HARQ BLER is higher than the first HARQ BLER.
6. The method of claim 1 wherein determining the first time difference comprises determining the first time difference utilizing a Quality of Service Class Identifier (QCI) data structure.
7. The method of claim 1 wherein determining the first time difference comprises determining the first time difference based on media type.
8. The method of claim 1 wherein the allowable end-to-end delay comprises utilizing a Quality of Service Class Identifier (QCI) data structure.
9. The method of claim 1 wherein the allowable end-to-end delay comprises utilizing media type.
10. The method of claim 1 wherein the first consumed end-to-end delay is determined based on a difference between a timestamp of the media packet and the current time.
11. A wireless access system for hybrid automatic repeat request (HARQ) block error rate (BLER) control in wireless communications, the wireless access system comprising:
a network receiver configured to receive a media packet;
a BLER control system configured to determine a first time difference between an allowable end-to-end delay for the media packet and a first consumed end-to-end delay for the media packet;
the BLER control system configured to process the first time difference to select a first HARQ BLER;
a HARQ transceiver configured to transfer the media packet from the wireless access system using the first HARQ BLER;
the BLER control system configured to identify a HARQ negative acknowledgement (NACK) for the media packet;
the BLER control system configured to determine a second time difference between the allowable end-to-end delay for the media packet and a second consumed end-to-end delay for the media packet;
the BLER control system configured to process the second time difference to select a second HARQ BLER; and
the HARQ transceiver configured to initiate a transfer process of the media packet based on the second HARQ BLER.
12. The wireless access system of claim 11 wherein the BLER control system configured to initiate the transfer process of the media packet based on the second HARQ BLER is configured to re-transfer the media packet from the wireless access system using the second HARQ BLER.
13. The wireless access system of claim 12 further comprising:
the BLER control system configured to select the second HARQ BLER which is lower than the first HARQ BLER.
14. The wireless access system of claim 11 wherein the BLER control system configured to initiate the transfer process of the media packet based on the second HARQ BLER is configured to block re-transfer of the media packet from the wireless access system based on the second HARQ BLER.
15. The wireless access system of claim 14 further comprising:
the BLER control system configured to select the second HARQ BLER which is higher than the first HARQ BLER.
16. The wireless access system of claim 11 further comprising:
the BLER control system configured to determine the first time difference utilizing a Quality of Service Class Identifier (QCI) data structure.
17. The wireless access system of claim 11 further comprising:
the BLER control system configured to determine the first time difference based on media type.
18. The wireless access system of claim 11 further comprising:
the BLER control system configured to determine the allowable end-to-end delay utilizing a Quality of Service Class Identifier (QCI) data structure.
19. The wireless access system of claim 11 further comprising:
the BLER control system configured to determine the allowable end-to-end delay utilizing media type.
20. The wireless access system of claim 11 further comprising:
the BLER control system configured to determine the first consumed end-to-end delay based on a difference between a timestamp of the media packet and the current time.