Multiple-input multiple-output channel access

Patent metadata

Field	Value
Publication number	US-2019261417-A1
Application number	US-201916399687-A
Country	US
Kind code	A1
Filing date	Apr 30, 2019
Priority date	May 1, 2018
Publication date	Aug 22, 2019
Grant date	—

Abstract

This disclosure describes systems, methods, and devices related to multiple-input multiple-output (MIMO) channel access. A device may determine one or more time division duplex (TDD) service periods (SPs). The device may determine a directional multi-gigabit (DMG) frame to be sent to a responder device on a channel associated with a MIMO communication. The device may cause to send the DMG frame to the responder device on the channel. The device may establish a MIMO channel access based on sending the DMG frame to the responder device.

First claim

What is claimed is:

1 . A device, the device comprising processing circuitry coupled to storage, the processing circuitry configured to:
determine one or more time division duplex (TDD) service periods (SPs); determine a directional multi-gigabit (DMG) frame to be sent to a responder device on a channel associated with a multiple-input multiple-output (MIMO) communication; cause to send the DMG frame to the responder device on the channel; and establish a MIMO channel access based on sending the DMG frame to the responder device.

2 . The device of claim 1 , wherein the memory and the processing circuitry are further configured to:
determine a respective availability status of one or more channels; cause to send a request to send (RTS) frame to the responder device, wherein the RTS frame comprises a first control trailer comprising the respective availability status of the one or more channels indicated in a first bandwidth indication field; and identify a clear to send (CTS) frame received from the responder device, wherein the CTS frame comprises a second control trailer, wherein the second control trailer comprises a second bandwidth indication field associated with one or more channels.

3 . The device of claim 1 , wherein causing to send the DMG frame is based on ignoring a physical layer (PHY) clear channel assessment (CCA) indication.

4 . The device of claim 1 , wherein the MIMO channel access is a single user MIMO (SU-MIMO) channel access.

5 . The device of claim 1 , wherein the processing circuitry is further configured to
determine a first indication associated with a first status of a first antenna; determine a second indication associated with a second status of a second antenna; and cause to send the first indication and the second indication to an upper layer of the device.

6 . The device of claim 1 , wherein the DMG frame is a clear to send to self (CTS-to-self) frame.

7 . The device of claim 6 , wherein the CTS-to-self frame is appended with a control trailer.

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 an antenna coupled to the transceiver to cause to send the DMG frame.

10 . A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:
determining one or more time division duplex (TDD) service periods (SPs); determining a directional multi-gigabit (DMG) frame to be sent to a responder device on a channel associated with a multiple-input multiple-output (MIMO) communication; causing to send the DMG frame to the responder device on the channel; and establishing a MIMO channel access based on sending the DMG frame to the responder device.

11 . The non-transitory computer-readable medium of claim 10 , wherein the operations further comprise:
determining a respective availability status of one or more channels; causing to send a request to send (RTS) frame to the responder device, wherein the RTS frame comprises a first control trailer comprising the respective availability status of the one or more channels indicated in a first bandwidth indication field; and identifying a clear to send (CTS) frame received from the responder device, wherein the CTS frame comprises a second control trailer, wherein the second control trailer comprises a second bandwidth indication field associated with one or more channels.

12 . The non-transitory computer-readable medium of claim 10 , wherein causing to send the DMG frame is based on ignoring a physical layer (PHY) clear channel assessment (CCA) indication.

13 . The non-transitory computer-readable medium of claim 10 , wherein the MIMO channel access is a single user MIMO (SU-MIMO) channel access.

14 . The non-transitory computer-readable medium of claim 10 , wherein the operations further comprise;
determining a first indication associated with a first status of a first antenna; determining a second indication associated with a second status of a second antenna; and causing to send the first indication and the second indication to an upper layer of the device.

15 . The non-transitory computer-readable medium of claim 10 , wherein the DMG frame is a clear to send to self (CTS-to-self) frame.

16 . The non-transitory computer-readable medium of claim 15 , wherein the CTS-to-self frame is appended with a control trailer.

17 . A method comprising:
determining, by one or more processors, by one or more processors, one or more time division duplex (TDD) service periods (SPs); determining a directional multi-gigabit (DMG) frame to be sent to a responder device on a channel associated with a multiple-input multiple-output (MIMO) communication; causing to send the DMG frame to the responder device on the channel; and establishing a MIMO channel access based on sending the DMG frame to the responder device.

18 . The method of claim 17 , further comprising:
determining a respective availability status of one or more channels; causing to send a request to send (RTS) frame to the responder device, wherein the RTS frame comprises a first control trailer comprising the respective availability status of the one or more channels indicated in a first bandwidth indication field; and identifying a clear to send (CTS) frame received from the responder device, wherein the CTS frame comprises a second control trailer, wherein the second control trailer comprises a second bandwidth indication field associated with one or more channels.

19 . The method of claim 17 , wherein causing to send the DMG frame is based on ignoring a physical layer (PHY) clear channel assessment (CCA) indication.

20 . The method of claim 17 , wherein the MIMO channel access is a single user MIMO (SU-MIMO) channel access.

Assignees

• Chen Cheng
• Cordeiro Carlos
• Da Silva Claudio
• Kedem Oren

Inventors

• Chen Cheng
• Cordeiro Carlos
• Da Silva Claudio
• Kedem Oren

Classifications

• H04B7/0413

  MIMO systems · CPC title

• H04W74/0816 Primary

  with collision avoidance · CPC title

• H04L5/1469

  using time-sharing · CPC title

• H04L5/0007

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title

• H04L5/14

  Two-way operation using the same type of signal, i.e. duplex · CPC title