Block Acknowledgements for Multiple Devices in High Efficiency Wireless Networks

Patent metadata

Field	Value
Publication number	US-2016248569-A1
Application number	US-201514734057-A
Country	US
Kind code	A1
Filing date	Jun 9, 2015
Priority date	Feb 20, 2015
Publication date	Aug 25, 2016
Grant date	—

Abstract

Embodiments herein relate to, among other things, systems, methods, and computer-readable media for a block acknowledgement (BA) frame for multiple communication stations (STAs) having multiple traffic identifiers (TIDs). The BA frame may include BA indications for STAs in each 20 MHz within an 80 MHz PPDU or a 160 MHz PPDU. The BA frame may include a variable size BA bitmap and a BA Ending Sequence Number (ESN) that determines the size of the variable size BA bitmap.

First claim

1 . A non-transitory computer-readable medium storing computer-executable instructions that, when executed by a processor, cause the processor to perform operations comprising:
setting, in a first field of a BA frame, a first block acknowledgment (BA) indication associated with a first channel, the BA frame comprising the first field for the first block acknowledgment indication associated with the first channel and a second field for a second block acknowledgment indication associated with the second channel; setting, in a BA ending sequence number (ESN) field of the BA frame, a BA ESN determinative of a size of a variable size BA bitmap of the BA frame; and directing the transmission, over a wireless network comprising the first channel and the second channel, of the block acknowledgement frame from a computing device.

2 . The non-transitory computer-readable medium of claim 1 , the operations further comprising:
setting a BA starting sequence control (SSC) using a BA SSC field of the BA frame, wherein the BA SSC and the BA ending sequence number (ESN) define the size of the variable size BA bitmap.

3 . The non-transitory computer-readable medium of claim 1 , wherein the first channel comprises a first 20 MHz channel and the second channel comprises a second 20 MHz channel allocated after the first 20 MHz channel.

4 . The non-transitory computer-readable medium of claim 3 , wherein the first 20 MHz channel comprises a plurality of sub-channels and the second 20 Mhz channel comprises a plurality of sub-channels.

5 . The non-transitory computer-readable medium of claim 1 , the operations further comprising:
determining that the BA ESN does not equal a total number of octets transmitted starting from a BA SSC; and setting an acknowledgment indication in an acknowledgment field and a traffic identifier (TID) value in a TID field of the BA frame.

6 . The non-transitory computer-readable medium of claim 1 , the operations further comprising:
determining that the BA ESN equals a total number of octets transmitted starting from a BA SSC, wherein the block acknowledgement frame transmitted from the computing device does not include a BA bitmap.

7 . The non-transitory computer-readable medium of claim 1 , the operations further comprising:
setting a value in a multi-traffic identifier indication field, a value in a compressed bitmap indication field, and a value in a Groupcast with Retries (GCR) indication field to indicate a type of the block acknowledgement frame.

8 . The non-transitory computer-readable medium of claim 1 , the block acknowledgement frame comprising a third field for a third block acknowledgment indication for a third channel and a fourth field for a fourth block acknowledgment indication for a fourth channel.

9 . A device, comprising:
one or more processors having circuitry including logic to:
set, in a first field of a BA frame, a first block acknowledgment (BA) indication associated with a first channel, the BA frame comprising the first field for the first block acknowledgment indication associated with the first channel and a second field for a second block acknowledgment indication associated with the second channel;
set, in a BA ending sequence number (ESN) field of the BA frame, a BA ESN determinative of a size of a variable size BA bitmap of the BA frame; and
direct the transmission, over a wireless network, of the block acknowledgement frame from the device.

10 . The device of claim 9 , the one or more processors having circuitry including logic to:
set a BA starting sequence control (SSC) using a BA SSC field of the BA frame, wherein the BA SSC and the BA ending sequence number define the size of the variable size BA bitmap.

11 . The device of claim 9 , wherein the first channel comprises a first 20 MHz channel and the second channel comprises a second 20 MHz channel allocated after the first 20 MHz channel.

12 . The device of claim 9 , the one or more processors having circuitry including logic to:
determine that the BA ESN does not equal a total number of octets transmitted starting from a BA SSC; and set an acknowledgment indication in an acknowledgment field and a traffic identifier (TID) value in a TID field of the BA frame.

13 . The device of claim 9 , the one or more processors having circuitry including logic to:
set a value in a multi-traffic identifier indication field, a value in a compressed bitmap indication field, and a value in a Groupcast with Retries (GCR) indication field to indicate a type of the block acknowledgement frame.

14 . The device of claim 9 , the block acknowledgement frame comprising a third field for a third block acknowledgment indication for a third channel and a fourth field for a fourth block acknowledgment indication for a fourth channel.

15 . A device, comprising:
one or more processors having circuitry including logic to:
obtain first frames transmitted over a first channel of a wireless network;
generate, in response to obtaining the first frames, a block acknowledgement (BA) frame, the BA frame comprising:
a first BA indication associated with the first channel; and
a second BA indication associated with a second channel of the wireless network; and

direct the transmission, over a wireless network, of the BA frame from the device.

16 . The device of claim 15 , the BA frame comprising a variable size BA bitmap.

17 . The device of claim 16 , the BA frame comprising a BA ending sequence number (ESN) determinative of a size of the variable size BA bitmap.

18 . The device of claim 17 , the BA frame comprising a BA starting sequence control (SSC), wherein the BA SSC and the BA ESN define the size of the variable size BA bitmap.

19 . The device of claim 15 , wherein generating the BA frame comprises determining whether the BA ESN is equal to a number of octets transmitted from the device beginning with the BA SSC.

20 . The device of claim 15 , the BA frame comprising a third BA indication associated with a third channel of the wireless network and a fourth BA indication associated with a fourth channel of the wireless network.

Assignees

• Intel Corp

Inventors

• Ghosh Chittabrata

Classifications

• H04L1/1621

  Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers · CPC title

• H04L1/1614

  using bitmaps · CPC title

• H04L1/1685

  the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal · CPC title

• H04L1/165

  Variable formats · CPC title

• H04L5/0055 Primary

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title