Automated frequency coordination for high speed mobility

Patent metadata

Field	Value
Publication number	US-12375995-B2
Application number	US-202217945431-A
Country	US
Kind code	B2
Filing date	Sep 15, 2022
Priority date	Sep 15, 2022
Publication date	Jul 29, 2025
Grant date	Jul 29, 2025

Abstract

This disclosure provides systems and methods for use of automated frequency coordination (AFC) to manage transmission power and frequencies. In some implementations, a device transmits, to a network entity, an AFC request. The device receives, from the network entity, an AFC response, the AFC response including an AFC power level indication of one or more nearest neighboring entities. The device sets a transmit power of the device based at least in part on the AFC power level indication of at least one of the one or more nearest neighboring entities, and the device transmits at the transmit power. In some instances, the device transmits a first number of AFC requests during a first instance of travelling along a path and transmits a second number of AFC requests less than the first number of AFC requests during one or more successive instances after the first instance of travelling along the path.

First claim

What is claimed is:

1. A device, comprising:
at least one processor; and
at least one memory communicatively coupled with the at least one processor and storing processor-readable code that, when executed by the at least one processor, is configured to cause the device to:
transmit an automated frequency coordination (AFC) request;
receive an AFC response, wherein the AFC response includes an AFC power level indication of one or more nearest neighboring entities to the device;
set a transmit power of the device based at least in part on the AFC power level indication of at least one of the one or more nearest neighboring entities; and
transmit at the transmit power.

2. The device of claim 1 , wherein execution of the processor readable code is further configured to cause the device to:
transmit a first number of AFC requests during a first instance of travelling; and
transmit a second number of AFC requests less than the first number of AFC requests during one or more successive instances after the first instance of travelling, wherein the second number of AFC requests is based at least in part on setting the transmit power to an AFC power level indication of a neighboring entity, of the one or more nearest neighboring entities, independent of transmitting another AFC request.

3. The device of claim 2 , wherein execution of the processor-readable code is further configured to cause the device to set the second number of AFC requests to a required minimum for performing AFC.

4. The device of claim 1 , wherein the AFC power level indication of the one or more nearest neighboring entities are stored in a table identifying the one or more nearest neighboring entities, a location of each of the one or more nearest neighboring entities, and the AFC power level indication of the one or more nearest neighboring entities.

5. The device of claim 1 , wherein the AFC power level indication is a binary indication as to whether or not a standard power (SP) transmit power is allowed.

6. The device of claim 1 , wherein the AFC response includes a VendorExtension object to indicate the AFC power level indication of the one or more nearest neighboring entities.

7. The device of claim 1 , wherein the AFC response includes a frequency indicator of the one or more nearest neighboring entities to the device, wherein execution of the processor-readable code is further configured to cause the device to set a transmit frequency based at least in part on the frequency indicator of the one or more nearest neighboring entities to the device, and wherein transmission at the transmit power includes transmission at the transmit frequency.

8. A method for wireless communications by a device, comprising:
transmitting an automated frequency coordination (AFC) request;
receiving an AFC response, wherein the AFC response includes an AFC power level indication of one or more nearest neighboring entities to the device;
setting a transmit power of the device based at least in part on the AFC power level indication of at least one of the one or more nearest neighboring entities; and
transmitting at the transmit power.

9. The method of claim 8 , further comprising:
transmitting a first number of AFC requests during a first instance of travelling; and
transmitting a second number of AFC requests less than the first number of AFC requests during one or more successive instances after the first instance of travelling, wherein the second number of AFC requests is based at least in part on setting the transmit power to an AFC power level indication of a neighboring entity, of the one or more nearest neighboring entities, independent of transmitting another AFC request.

10. A device, comprising:
at least one processor; and
at least one memory communicatively coupled with the at least one processor and storing processor-readable code that, when executed by the at least one processor, is configured to cause the device to:
transmit, to a network component in a cellular network, an automated frequency coordination (AFC) request based at least in part on an AFC event;
receive, from the network component, an AFC response;
identify a transmit power to be used by one of an access point (AP) or a station (STA) based on the AFC response; and
instruct that the one of the AP or the STA use a specific transmit power level for transmission,
wherein the AFC event includes one of:
the one of the AP or the STA crossing a cellular based location border;
a handoff of the AP between network entities; or
an AFC associated timer indicating an AFC request is to be sent.

11. The device of claim 10 , wherein:
the device is included in the one of the AP or the STA;
the AFC request is transmitted to a network entity; and
the AFC response is received from the network entity.

12. The device of claim 11 , wherein execution of the processor-readable code is further configured to cause the device to:
obtain a plurality of locations of the one of the AP or the STA associated with a plurality of AFC events during one or more instances of travelling;
determine a location pattern over time of the one of the AP or the STA based at least in part on the plurality of locations of the one of the AP or the STA associated with the plurality of AFC events; and
transmit a second number less than a first number of AFC requests to the network entity during a successive instance after the one or more instances of travelling based at least in part on the location pattern, wherein the first number of AFC requests is transmitted during an instance of the one or more instances of travelling and a second number of AFC requests is based at least in part on setting the transmit power of the one of the AP or the STA to a transmit power associated with one of the plurality of locations of the one of the AP or the STA and one of the plurality of AFC events independent of transmitting another AFC request.

13. The device of claim 10 , wherein:
the device is included in a cellular network controller to receive one or more AFC requests from the AP and provide one or more AFC responses to the AP;
the AFC event includes receiving an AFC request from the AP;
the AFC request to be transmitted by the device is to be transmitted to an AFC server in the cellular network; and
the AFC response to be received by the device is to be received from the AFC server.

14. The device of claim 13 , wherein execution of the processor-readable code is further configured to cause the device to:
obtain one or more locations of the one of the AP or the STA during one or more instances of the one of the AP or the STA travelling, wherein the one or more locations are associated with one or more AFC events; and
obtain a corresponding transmit power associated with each of the one or more locations.

15. The device of claim 14 , wherein execution of the processor-readable code is further configured to cause the device to:
receive another AFC request from the AP;
obtain a first location of the one of the AP or the STA; and
transmit an AFC response to the AP independent of transmitting an AFC request to the AFC server, wherein the AFC response indicates a current transmit power to be used by the one of the AP or the STA, wherein the current transmit power is based at least in part on the first location of the one of the AP or the STA, the one or more locations of the one of the AP or the STA, and the one or more corresponding transmit powers associated with the one or more locations.

16. The device of claim 15 , wherein execution of the processor-readable code is further conf

Assignees

• Qualcomm Inc

Inventors

• Anantharaman Subramanian
• Natarajan Sreekanth
• Homchaudhuri Sandip
• Varadarajan Sujatha

Classifications

• H04W72/0473

  the resource being transmission power · CPC title

• H04W40/10

  based on available power or energy · CPC title

• H04W40/08 Primary

  based on transmission power · CPC title

• H04W52/38 Primary

  TPC being performed in particular situations · CPC title