High Efficiency Signal Field in High efficiency wireless local area network

Patent metadata

Field	Value
Publication number	US-2016353322-A1
Application number	US-201514998291-A
Country	US
Kind code	A1
Filing date	Dec 24, 2015
Priority date	May 27, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

This disclosure describes methods, apparatus, and systems related to a high efficiency SIGNAL field in high efficiency wireless LAN access network. A device may determine at least one communication channel with one or more devices including a first device and a second device. The device may generate a high efficiency preamble in accordance with a high efficiency communication standard, the high efficiency preamble including, at least in part, a first high efficiency SIGNAL field and a second high efficiency SIGNAL field. The device may partition the second high efficiency SIGNAL fields into, at least in part, a common subfield, and one or more device specific subfields. The device may send the high efficiency preamble to at least one of the one or more devices.

First claim

What is claimed is:

1 . A device, comprising:
at least one memory that stores computer-executable instructions; and at least one processor of the one or more processors configured to access the at least one memory, wherein the at least one processor of the one or more processors is configured to execute the computer-executable instructions to:
determine at least one communication channel with one or more devices including a first device and a second device;
generate a high efficiency preamble in accordance with a high efficiency communication standard, the high efficiency preamble including, at least in part, a first high efficiency SIGNAL field and a second high efficiency SIGNAL field;
partition the second high efficiency SIGNAL fields into, at least in part, a common subfield and one or more device specific subfields; and
cause to send the high efficiency preamble to at least one of the one or more devices.

2 . The device of claim 1 , wherein the common subfield is common to the first device and the second device.

3 . The device of claim 1 , wherein the common subfield includes at least one of a resource allocation, a spatial stream allocation, or a number of legacy training fields (LTF).

4 . The device of claim 1 , wherein the high efficiency communication standard is an Institute of Electrical and Electronics Engineers (IEEE) 802.11 ax communication standard.

5 . The device of claim 1 , wherein the device specific subfield includes at least one of station identifier (STAID), modulation and coding scheme (MCS), transmit beamforming indication (TxBF), or frame extension parameter associated with the first computing device.

6 . The device of claim 1 , wherein the first high efficiency SIGNAL field includes a high efficiency SIGNAL A (I-IE-SIG-A) field.

7 . The device of claim 1 , wherein the second high efficiency SIGNAL field includes a high efficiency SIGNAL B (HE-SIG-B) field.

8 . The device of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals.

9 . The device of claim 8 , further comprising one or more antennas coupled to the transceiver.

10 . A non-transitory computer-readable medium storing computer-executable instructions which, when executed by a processor, cause the processor to perform operations comprising:
determining a first communication channel associated with an access point; identifying a high efficiency preamble in accordance with a high efficiency communication standard, the high efficiency preamble including, at least in part, a first high efficiency SIGNAL field and a second high efficiency SIGNAL field; decoding the first high efficiency SIGNAL field; and determining an indication of an availability of transmission subchannels associated with the first communication channel based at least in part on the first high efficiency SIGNAL field.

11 . The non-transitory computer-readable medium of claim 10 , wherein the computer-executable instructions cause the processor to further perform operations comprising:
determining a common subfield and one or more device specific subfields included in the second high efficiency SIGNAL field; and determining a length of one of the one or more device specific subfields based at least in part on decoding the first high efficiency SIGNAL field.

12 . The non-transitory computer-readable medium of claim 11 , wherein the common subfield is common to one or more devices.

13 . The non-transitory computer-readable medium of claim 11 , wherein the common subfield includes at least one of a resource allocation, a spatial stream allocation, or a number of legacy training fields (LTF).

14 . The non-transitory computer-readable medium of claim 11 , wherein the one or more device specific subfields includes at least one of station identifier (STAID), modulation and coding schemes (MCS), transmit beamforming indication (TxBF), or frame extension parameter associated with the first computing device.

15 . The non-transitory computer-readable medium of claim 10 , wherein the first high efficiency SIGNAL field includes a high efficiency SIGNAL A (HE-SIG-A) field.

16 . The non-transitory computer-readable medium of claim 10 , wherein the second high efficiency SIGNAL field includes a high efficiency SIGNAL B (HE-SIG-B) field.

17 . The non-transitory computer-readable medium of claim 11 , wherein the device specific subfield may be encoded by at least one of tail biting convolutional code or ordinary convolutional code.

18 . A method comprising:
determining at least one communication channel with one or more devices including a first device and a second device; generating a high efficiency preamble in accordance with a high efficiency communication standard, the high efficiency preamble including, at least in part, a first high efficiency SIGNAL field and a second high efficiency SIGNAL field; partitioning the second high efficiency SIGNAL fields into, at least in part, a common subfield and one or more device specific subfields; causing to send the high efficiency preamble to at least one of the one or more devices.

19 . The method of claim 18 , wherein the common subfield is common to the first device and the second device.

20 . The method of claim 18 , wherein the common subfield includes at least one of a resource allocation, a spatial stream allocation, or a number of legacy training fields (LTF).

Assignees

• Intel Ip Corp

Inventors

• Li Qinghua
• Chen Xiaogang
• Zhu Yuan
• Niu Huaning
• Yin Hujun

Classifications

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W28/065 Primary

  using assembly or disassembly of packets · CPC title

• H04L27/2613

  Structure of the reference signals · CPC title

• H04L5/0091

  Signalling for the administration of the divided path, e.g. signalling of configuration information · CPC title

• H04L5/0023

  Time-frequency-space · CPC title