Systems and methods for Wi-Fi high efficiency preambles for multi-user multi-input multi-output resource allocation

Patent metadata

Field	Value
Publication number	US-10419258-B2
Application number	US-201514978933-A
Country	US
Kind code	B2
Filing date	Dec 22, 2015
Priority date	May 5, 2015
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

Certain embodiments herein relate to stream allocation indication for high efficiency wireless networks. A frame may include a HE-SIG-B field having a common part and an STA-specific part used to indicate multi-user multi-input multi-output (MU-MIMO) resource allocation. In some embodiments, a frame may include an HE-SIG-B field only having an STA-specific part used to indicate resource allocation.

First claim

The claimed invention is:

1. One or more non-transitory computer-readable media comprising computer-executable instructions that, when executed by one or more processors, configure the one or more processors to perform operations comprising:
determining a first resource unit to be allocated to a first station device (STA) a second resource unit to be allocated to a second STA;
generating a common part of an HE-SIG-B field of a frame, wherein the common part of the HE-SIG-B field comprises a first indication of a first number of tones associated with the first resource unit and a second indication of a second number of tones associated with the second resource unit;
generating a STA specific part of the HE-SIG-B field, wherein the STA specific part of the HE-SIG-B field comprises a first identifier associated with the first STA and a second identifier associated with the second STA, wherein an indication of the first identifier is in a first position of the STA specific part, wherein an indication of the second identifier is in a second position of the STA specific part, and wherein the first position of the STA specific part is assigned the first resource unit and the second position of the STA specific part is assigned the second resource unit;
generating the frame comprising the common part of the HE-SIG-B field and the STA specific part of the HE-SIG-B field; and
causing to send the frame.

2. The one or more non-transitory computer-readable media of claim 1 , wherein the HE-SIG-B field of the frame is in a preamble of a physical layer convergence protocol (PLCP) protocol data unit (PPDU).

3. The one or more non-transitory computer-readable media of claim 1 , wherein the first identifier and the second identifier are station identifiers.

4. The one or more non-transitory computer-readable media of claim 1 , wherein the first STA is allocated the first number of tones and the second STA is allocated the second number of tones.

5. The one or more non-transitory computer-readable media of claim 4 , wherein the common part of the HE-SIG-B field further comprises a first index corresponding to the first resource unit and a second index corresponding to the second index resource unit.

6. The one or more non-transitory computer-readable media of claim 1 , wherein the minimum bandwidth of each of the first resource unit and the second resource unit is 20 MHz.

7. The one or more non-transitory computer-readable media of claim 1 , wherein the minimum bandwidth of each of the first resource unit and the second resource unit is 20 MHz.

8. A wireless device, comprising:
at least one antenna configured to transmit wireless signals;
a transceiver communicatively coupled to the at least one antenna;
at least one storage that stores computer-executable instructions; and
at least one processor configured to access the at least one storage, wherein the at least one processor is communicatively coupled to the transceiver and is further configured to execute the computer-executable instructions to:
generate a common part of an HE-SIG-B field of a frame, wherein the common part of the HE-SIG-B field comprises a first indication of a first number of tones associated with a first resource unit and a second indication of a second number of tones associated with a second resource unit;
generate a STA specific part of the HE-SIG-B field, wherein the STA specific part of the HE-SIG-B field comprises a first identifier associated with the wireless device and a second identifier associated with a second wireless device, wherein an indication of the first identifier is in a first position of the STA specific part, wherein an indication of the second identifier is in a second position of the STA specific part, and wherein the first position of the STA specific part is assigned the first resource unit and the second position of the STA specific part is assigned the second resource unit; and
generate a preamble structure of the frame based at least in part on the HE-SIG-A field and the HE-SIG-B field.

9. The wireless device of claim 8 , wherein the frame comprises an indication of a number of users.

10. The wireless device of claim 8 , wherein the first resource unit is associated with a first channel bandwidth and the second resource unit is associated with a second channel bandwidth.

11. The wireless device of claim 8 , wherein an order of the first position of the STA specific part and the second position of the STA specific part indicate an order of frequency resource mapping.

12. The wireless device of claim 8 , wherein the wireless device is allocated the first number of tones and the second wireless device is allocated the second number of tones.

13. The wireless device of claim 8 , wherein the common part of the HE-SIG-B field further comprises a first index corresponding to the first resource unit and a second index corresponding to the second resource unit.

14. One or more non-transitory computer-readable media comprising computer-executable instructions that, when executed by one or more processors, configure the one or more processors to perform operations comprising:
generating a common part of an HE-SIG-B field of a frame, wherein common part of the HE-SIG-B field comprises a first indication of a first number of tones associated with a first resource unit and a second indication of a second number of tones associated with a second resource unit;
generating an STA specific part of the HE-SIG-B field, wherein the STA specific part of the HE-SIG-B field comprises a first identifier associated with a first STA and a second identifier associated with a second STA, wherein an indication of the first identifier is in a first position of the STA specific part, wherein an indication of the second identifier is in a second position of the STA specific part, and wherein the first position of the STA specific part is assigned the first resource unit and the second position of the STA specific part is assigned the second resource unit;
generating the frame comprising the common part of the HE-SIG-B field and the STA specific part of the HE-SIG-B field; and
causing to send the frame.

15. The one or more non-transitory computer-readable media of claim 14 , wherein the HE-SIG-B field of the frame is a preamble of a physical layer convergence protocol (PLCP) protocol data unit (PPDU).

16. A wireless device, comprising:
at least one antenna configured to transmit wireless signals;
a transceiver communicatively coupled to the at least one antenna;
at least one storage that stores computer-executable instructions; and
at least one processor configured to access the at least one storage, wherein the at least one processor is communicatively coupled to the transceiver and is further configured to execute the computer-executable instructions to:
receive a high efficiency wireless (HEW) preamble of a frame, the HEW preamble comprising an HE-SIG-A field and an HE-SIG-B field, the HE-SIG-B field comprising a common part and an STA specific part, wherein the common part comprises first tones of a first resource unit associated with the wireless device and an indication of second tones of a second resource unit associated with a second wireless device;
identify an indication of a first identifier of the first wireless device and an indication of a second identifier of the second wireless device, wherein the indication of the first identifier is in a first position of the STA specific part, wherein the indication of the second identifier is in a second position of the STA specific part, and wherein the first position of the STA

Assignees

• Chen Xiaogang
• Li Qinghua
• Stacey Robert
• Zhu Yuan
• Ghosh Chittabrata
• Huang Po Kai
• Yang Rongzhen
• Niu Huaning
• Jeon Jeongho
• Intel Ip Corp

Inventors

• Chen Xiaogang
• Li Qinghua
• Stacey Robert
• Zhu Yuan
• Ghosh Chittabrata
• Huang Po-Kai
• Yang Rongzhen
• Niu Huaning
• Jeon Jeongho

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04W28/065

  using assembly or disassembly of packets · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W72/04

  Wireless resource allocation · CPC title