EP-4736473-A1 - COMMUNICATION METHODS AND APPARATUSES FOR MEDIUM ACCESS CONTROL

Abstract

A communication method of medium access control includes determining, by an access point (AP), a medium access control associated with ambient power (AMP) devices based on a location information associated with the AMP devices, and transmitting, by the AP, the medium access control to at least one of the AMP devices. Another communication method of medium access control includes receiving, by at least one of ambient power (AMP) devices from an access point (AP), a medium access control associated with the AMP devices, wherein the medium access control is associated with a location information associated with the AMP devices, and performing, by the at least one of AMP devices, channel access based on the medium access control.

Inventors

• QI, Yinan

Assignees

• GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Dates

Publication Date

20260506

Application Date

20230630

Claims (20)

1. A communication method of medium access control, comprising: determining, by an access point (AP) , a medium access control associated with ambient power (AMP) devices based on a location information associated with the AMP devices; and transmitting, by the AP, the medium access control to at least one of the AMP devices.
2. The communication method of medium access control according to claim 1, wherein the location information associated with the AMP devices comprises locations and/or mobilities associated with the AMP devices.
3. The communication method of medium access control according to claim 1 or 2, further comprising acquiring, by the AP, the location information associated with the AMP devices from the at least one of the AMP devices or at least one network node knowing the location information associated with the AMP devices.
4. The communication method of medium access control according to any one of claims 1 to 3, wherein the medium access control comprises a group configuration associated with the AMP devices and/or a channel access information associated with the AMP devices.
5. The communication method of medium access control according to claim 4, wherein the group configuration associated with the AMP devices is fixed or dynamically adjusted, activated, or deactivated by the AP based on an overall number of associated AMP devices, a number of average active AMP devices per second, and/or a percentage of AMP devices with known locations.
6. The communication method of medium access control according to claim 5, wherein an activation bit association with the group configuration is broadcasted in a beacon frame transmitted by the AP to the at least one of the AMP devices.
7. The communication method of medium access control according to any one of claims 1 to 6, wherein the group configuration comprises group identifiers (IDs) associated with the AMP devices, the group IDs are assigned and signaled by the AP to the AMP devices, or association IDs (AIDs) associated with the group IDs are assigned and signaled by the AP to the AMP devices based on a grouping rule.
8. The communication method of medium access control according to claim 7, wherein the group IDs are contained in a physical layer (PHY) and/or medium access control (MAC) header of a frame transmitted by the AP to the AMP devices or in a frame body of the frame.
9. The communication method of medium access control according to any one of claims 4 to 8, wherein the channel access information is signaled by the AP to the at least one of the AMP devices within each time interval for each group associated with the AMP devices.
10. The communication method of medium access control according to claim 9, wherein the channel access information comprises a pre-fixed channel access or a dynamic channel access configuration.
11. The communication method of medium access control according to any one of claims 4 to 10, wherein the channel access information indicates a group channel access in different time intervals.
12. The communication method of medium access control according to claim 11, wherein one group is allowed to access a channel within one time interval, or multiple groups are allowed to access the channel within one time interval.
13. The communication method of medium access control according to any one of claims 1 to 12, wherein the medium access control associated with ambient power (AMP) devices is applied in an uplink random access (URA) .
14. A communication method of medium access control, comprising: receiving, by at least one of ambient power (AMP) devices from an access point (AP) , a medium access control associated with the AMP devices, wherein the medium access control is associated with a location information associated with the AMP devices; and performing, by the at least one of AMP devices, channel access based on the medium access control.
15. The communication method of medium access control according to claim 14, wherein the location information associated with the AMP devices comprises locations and/or mobilities associated with the AMP devices.
16. The communication method of medium access control according to claim 14 or 15, further comprising transmitting, by the at least one of the AMP devices, the location information associated with the AMP devices to the AP.
17. The communication method of medium access control according to any one of claims 14 to 16, wherein the medium access control comprises a group configuration associated with the AMP devices and/or a channel access information associated with the AMP devices.
18. The communication method of medium access control according to claim 17, wherein the group configuration associated with the AMP devices is fixed or dynamically adjusted, activated, or deactivated by the AP based on an overall number of associated AMP devices, a number of average active AMP devices per second, and/or a percentage of AMP devices with known locations.
19. The communication method of medium access control according to claim 18, wherein an activation bit association with the group configuration is broadcasted in a beacon frame transmitted by the AP to the at least one of the AMP devices.
20. The communication method of medium access control according to any one of claims 14 to 19, wherein the group configuration comprises group identifiers (IDs) associated with the AMP devices, the group IDs are assigned and signaled by the AP to the AMP devices, or association IDs (AIDs) associated with the group IDs are assigned and signaled by the AP to the AMP devices based on a grouping rule.

Description

COMMUNICATION METHODS AND APPARATUSES FOR MEDIUM ACCESS CONTROL TECHNICAL FIELD The present disclosure relates to the field of communication technologies, and more particularly, to communication methods and apparatuses for medium access control, such as methods and apparatus of accurate location aware medium access for massive ambient power (AMP) devices. BACKGROUND In current massive deployment of ambient power (AMP) devices, even with group sectorization, there are massive AMP devices belonging to each sector group and collision can still easily happen. For example, AMP devices are expected to be deployed massively in some use cases, e.g., more than 3 per m2 in a data center. In such a case, assuming 30 m coverage and 3 sectors, there could be approximately 3000 AMP devices within one sector. Even with group sectorization, such huge number of AMP devices could still cause severe collision issue, and a channel access efficiency is low. Therefore, there is a need for communication methods and apparatuses of medium access control, which can improve the collision issue and/or the channel access efficiency. SUMMARY An object of the present disclosure is to propose communication methods and apparatuses of medium access control, which can enhance a channel access efficiency, improve a collision issue, mitigate a hidden node issue, improve additional resource usage, and/or improve signaling overhead. In a first aspect of the present disclosure, a communication method of medium access control includes determining, by an access point (AP) , a medium access control associated with ambient power (AMP) devices based on a location information associated with the AMP devices, and transmitting, by the AP, the medium access control to at least one of the AMP devices. In a second aspect of the present disclosure, a communication method of medium access control includes receiving, by at least one of ambient power (AMP) devices from an access point (AP) , a medium access control associated with the AMP devices, wherein the medium access control is associated with a location information associated with the AMP devices, and performing, by the at least one of AMP devices, channel access based on the medium access control. In a third aspect of the present disclosure, an access point (AP) includes a determiner configured to determine a medium access control associated with ambient power (AMP) devices based on a location information associated with the AMP devices, and a transmitter configured to transmit the medium access control to at least one of the AMP devices. In a fourth aspect of the present disclosure, an access point (AP) includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The AP is configured to perform the above method. In a fifth aspect of the present disclosure, an ambient power (AMP) device includes a receiver configured to receive from an access point (AP) , a medium access control associated with the AMP devices, wherein the medium access control is associated with a location information associated with the AMP devices, and an executer configured to perform channel access based on the medium access control. In a sixth aspect of the present disclosure, an ambient power (AMP) device includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The AMP device is configured to perform the above method. In a seventh aspect of the present disclosure, a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method. In an eighth aspect of the present disclosure, a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the above method. In a ninth aspect of the present disclosure, a computer readable storage medium, in which a computer program is stored, causes a computer to execute the above method. In a tenth aspect of the present disclosure, a computer program product includes a computer program, and the computer program causes a computer to execute the above method. In an eleventh aspect of the present disclosure, a computer program causes a computer to execute the above method. BRIEF DESCRIPTION OF DRAWINGS In order to illustrate the embodiments of the present disclosure or related art more clearly, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present disclosure, a person having ordinary skill in this field can obtain other figures according to these figures without paying the premise. FIG. 1 is a schematic structural diagram of a group sectorization in institute of electrical and electronics engineers (IEEE) 802.11ah. FIG. 2 is a schematic structural diagram of grouping based on a location information of ambient power (AMP) devices according to an em