Error correction for a persistent resource allocation

• US 9,161,341 B2
• Filed: 05/07/2014
• Issued: 10/13/2015
• Est. Priority Date: 09/11/2007
• Status: Active Grant

• Current Assignee: Quarterhill Inc. (f/k/a Wi-LAN Inc.)
• Original Assignee: Wi-LAN Inc.
• Inventors: Bourlas, Yair, Asirvatham, Kirupairaj
• Primary Examiner(s): Iqbal, Nadeem
• Application Number:
  US14/271,596
• Publication Number:
  US 20140241292A1
• Time in Patent Office: 524 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 1/0004 applied to control information
• CPC Class Codes: H04L 1/001 applied to control information
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0096 Indication of changes in allocation
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/0466 the resource being a scrambling code
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.

Claims

1. A method of processing a persistent resource allocation in a client station, the method comprising:

receiving persistent resource allocation information, the persistent resource allocation information including an indication of downlink (DL) persistent resources, a first identifier associated with the client station, an indication of a DL allocation period, uplink (UL) persistent resources, and an indication of an UL allocation period; and

on a condition that the first identifier identifies the client station, periodically decoding the DL persistent resources and persistently transmitting via the UL persistent resources, wherein the DL persistent resources repeat at an interval defined by the DL allocation period and the UL persistent resources repeat at an interval defined by the UL allocation period.

2. The method of claim 1, further comprising:

receiving non-persistent resource allocation information including an indication of non-persistent resources and a second identifier associated with the client station; and

on a condition the second identifier matches a second client station identifier associated with the client station, decoding the non-persistent resources.

3. The method of claim 1, further comprising:

subsequent to receiving the persistent resource allocation information, receiving an indication of a release of at least one of the DL persistent resources and the UL persistent resources; and

indicating a positive acknowledgement (ACK) of the release.

4. The method of claim 1, further comprising:

receiving an offset indication, wherein the offset indication indicates an offset in a region of the UL persistent resources; and

the persistently transmitting further including transmitting via resources based on the offset.

5. The method of claim 1, wherein a number of empty transmissions indicates an implicit release of the UL persistent resources.

6. The method of claim 1, wherein the indication of the persistent resource allocation is received via a control channel.

7. The method of claim 6, wherein the DL persistent resources are received via a shared channel.

8. The method of claim 1, wherein at least one of the DL persistent resources and the UL persistent resources are used in voice over Internet protocol (VoIP) communication.

9. The method of claim 1, wherein the persistent resource allocation information further includes an indication of uplink resources for transmitting hybrid automatic repeat request (HARQ) information.

19. The method of claim 1, wherein the receiving the persistent resource allocation information includes receiving a plurality of persistent resource allocation messages.

10. A client station operable to process a persistent resource allocation, the client station comprising:

a receiver configured to receive persistent resource allocation information, the persistent resource allocation information including an indication of downlink (DL) persistent resources, an first identifier associated with the client station, an indication of a DL allocation period, uplink (UL) persistent resources, and an indication of an UL allocation period; and

a processor configure to, on a condition that the first identifier identifies the client station, periodically decode the DL persistent resources and persistently transmit via the UL persistent resources, wherein the DL persistent resources repeat at an interval defined by the DL allocation period and the UL persistent resources repeat at an interval defined by the UL allocation period.

11. The client station of claim 10, wherein:

the receiver is further configured to receive non-persistent resource allocation information including an indication of non-persistent resources and a second identifier associated with the client station; and

the processor is further configured to, on a condition the second identifier matches a second client station identifier associated with the client station, decode the non-persistent resources.

12. The client station of claim 10, wherein:

the receiver is further configured to, subsequent to receiving the indication of the persistent resource allocation, receive an indication of a release of at least one of the DL persistent resources and the UL persistent resources; and

the processor is further configured to indicate a positive acknowledgement (ACK) for the release.

13. The client station of claim 10, wherein:

the receiver is further configured to receive an offset indication, wherein the offset indication indicates an offset in a region of the UL persistent resources; and

the transmitter is further configured to transmit via resources based on the offset.

14. The client station of claim 10, wherein a number of empty transmissions indicates an implicit release of the UL persistent resources.

15. The client station of claim 10, wherein the indication of the persistent resource allocation is received via a control channel.

16. The client station of claim 15, wherein the DL persistent resources are received via a shared channel.

17. The client station of claim 10, wherein at least one of the DL persistent resources and the UL persistent resources are used in voice over Internet protocol (VoIP) communication.

18. The client station of claim 10, wherein the persistent resource allocation information further includes an indication of uplink resources for transmitting hybrid automatic repeat request (HARQ) information.

20. The client station of claim 10, wherein the persistent resource allocation information includes a plurality persistent resource allocation messages.