Beamformed channel occupancy ratio

Patent metadata

Field	Value
Publication number	US-11765614-B2
Application number	US-202117167629-A
Country	US
Kind code	B2
Filing date	Feb 4, 2021
Priority date	Feb 4, 2021
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure, using one or more beams included in a first beam group associated with the UE, a channel occupancy ratio (CR) for the first beam group. The UE may perform an action if the CR for the first beam group does not satisfy a CR limit associated with the first beam group. Numerous other aspects are described.

First claim

What is claimed is:

1. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
receive, from a first transmitter device, a first signal using a beam of a plurality of beams included in a first beam group associated with the UE;
receive, from a second transmitter device, a second signal using the beam or another beam included in the first beam group;
measure, based at least in part on the first signal and the second signal, a channel occupancy ratio (CR) for the first beam group; and

perform an action if the CR for the first beam group does not satisfy a CR limit associated with the first beam group,
wherein the action includes transmitting, to at least one of the first transmitter device or the second transmitter device, a request to reduce a transmission rate of transmissions that are to be received by the UE using beams included in the first beam group.

2. The UE of claim 1 , wherein the CR limit associated with the first beam group is determined based at least in part on at least one of a first channel busy ratio (CBR) associated with another UE that is communicating with the UE, a second CR limit associated with the other UE, or a second CBR for the first beam group.

3. The UE of claim 1 , wherein the one or more processors are further configured to:
measure, using one or more beams included in the first beam group, a channel busy ratio (CBR) for the first beam group; and
determine the CR limit associated with the first beam group based at least in part on the CBR for the first beam group.

4. The UE of claim 1 , wherein the one or more processors, when measuring the CR for the first beam group, are configured to:
measure the CR based at least in part on a number of subchannels used for transmitting signals using beams included in the first beam group; or
measure the CR based at least in part on a number of subchannels used for receiving signals using beams included in the first beam group.

5. The UE of claim 1 , wherein the one or more processors, when performing the action if the CR for the first beam group does not satisfy the CR limit associated with the first beam group, are configured to:
reduce a transmission rate of transmissions using beams included in the first beam group.

6. The UE of claim 1 , wherein the one or more processors are further configured to:
receive, from a receiver device, a request to reduce a transmission rate of transmissions to the receiver device; and
reduce the transmission rate of transmissions to the receiver device for transmissions by the UE that use one or more beams included in the first beam group based at least in part on receiving the request.

7. The UE of claim 6 , wherein the one or more processors are further configured to:
increase a transmission rate of transmissions to a second receiver device for transmissions by the UE that use one or more beams included in the first beam group based at least in part on reducing the transmission rate of transmissions to the receiver device.

8. The UE of claim 1 , wherein the one or more processors are further configured to:
receive, from a receiver device, an indication of a second CR limit associated with the receiver device;
measure a second CR for the receiver device based at least in part on transmissions to the receiver device that use one of the plurality of beams included in the first beam group; and
determine a transmission rate for transmissions to the receiver device based at least in part on the second CR and the second CR limit.

9. The UE of claim 1 , wherein the one or more processors are further configured to:
transmit, to a transmitter device, an indication of the CR limit for the first beam group; and
receive, from the transmitter device, one or more signals at a transmission rate that is based at least in part on the CR limit.

10. A method of wireless communication performed by a user equipment (UE), comprising:
receiving, from a first transmitter device, a first signal using a beam of a plurality of beams included in a first beam group associated with the UE;
receiving, from a second transmitter device, a second signal using the beam or another beam included in the first beam group;
measuring, based at least in part on the first signal and the second signal, a channel occupancy ratio (CR) for the first beam group; and
performing an action if the CR for the first beam group does not satisfy a CR limit associated with the first beam group,
wherein the action includes transmitting, to at least one of the first transmitter device or the second transmitter device, a request to reduce a transmission rate of transmissions that are to be received by the UE using beams included in the first beam group.

11. The method of claim 10 , further comprising:
determining the CR limit associated with the first beam group based at least in part on at least one of:
a first channel busy ratio (CBR) associated with another UE that is communicating with the UE,
a second CBR for the first beam group, or
a second CR limit associated with the other UE.

12. The method of claim 10 , further comprising:
measuring, using one or more beams included in the first beam group, a channel busy ratio (CBR) for the first beam group; and
determining the CR limit associated with the first beam group further based at least in part on the CBR for the first beam group.

13. The method of claim 10 , wherein measuring the CR for the first beam group comprises:
measuring the CR based at least in part on a number of subchannels used for transmitting signals using beams included in the first beam group; or
measuring the CR based at least in part on a number of subchannels used for receiving signals using beams included in the first beam group.

14. The method of claim 10 , wherein performing the action if the CR for the first beam group does not satisfy the CR limit associated with the first beam group comprises:
reducing a transmission rate of transmissions using beams included in the first beam group.

15. The method of claim 10 , further comprising:
receiving, from a receiver device, a request to reduce a transmission rate of transmissions to the receiver device; and
reducing the transmission rate of transmissions to the receiver device for transmissions by the UE that use one or more beams included in the first beam group based at least in part on receiving the request.

16. The method of claim 15 , further comprising:
increasing a transmission rate of transmissions to a second receiver device for transmissions by the UE that use one or more beams included in the first beam group based at least in part on reducing the transmission rate of transmissions to the receiver device.

17. The method of claim 10 , further comprising:
receiving, from a receiver device, an indication of a second CR limit associated with the receiver device;
measuring a second CR for the receiver device based at least in part on transmissions to the receiver device that use a beam included in the first beam group; and
determining a transmission rate for transmissions to the receiver device based at least in part on the second CR and the second CR limit.

18. The method of claim 10 , further comprising:
transmitting, to a transmitter device, an indication of the CR limit for the first beam group; and
receiving, from the transmitter device, one or more signals at a transmission rate that is based at least in part on the CR limit.

19. A

Assignees

• Qualcomm Inc

Inventors

• Ryu Jung Ho
• Akkarakaran Sony
• Luo Tao
• Li Junyi
• Montojo Juan
• Gaal Peter
• Damnjanovic Jelena
• Sun Jing
• Zhang Xiaoxia
• Wang Hua
• Wang Xiaojie
• Gupta Piyush
• Chendamarai Kannan Arumugam

Classifications

• H04W28/10

  Flow control {between communication endpoints} · CPC title

• H04L1/0002 Primary

  by adapting the transmission rate · CPC title

• H04W28/0205 Primary

  at the air interface (dynamic wireless traffic scheduling H04W72/12) · CPC title

• H04L1/0025

  Transmission of mode-switching indication · CPC title

• H04B7/0617

  for beam forming · CPC title