Methods for inter-ue resource coordination mechanism

Patent metadata

Field	Value
Publication number	US-2023389051-A1
Application number	US-202118032669-A
Country	US
Kind code	A1
Filing date	Oct 22, 2021
Priority date	Oct 23, 2020
Publication date	Nov 30, 2023
Grant date	—

Abstract

Methods for enabling inter-User Equipment (UE) resource coordination are provided. More specifically, methods performed by a receiving device and a transmitting device for enabling inter-UE resource coordination are provided. The methods disclosed herein can help achieve a sound tradeoff between benefits of resource coordination and overhead associated with resource coordination. Specifically, the methods can help reduce network load and ineffective resource coordination message, obtain better suggestion in terms of rules and formats of the resource coordination message, and create a framework for combining different types of resource coordination formats.

First claim

1 . A method performed by a receiving device for enabling inter-User Equipment, UE, resource coordination, comprising:
receiving one or more transmissions from one or more transmitting devices; determining whether to communicate a resource coordination message to a respective one of the one or more transmitting devices based on one or more parameters obtained from a respective one of the one or more transmissions received from the respective one of the one or more transmitting devices; determining a format for the resource coordination message based on the one or more obtained parameters in response to determining to communicate the resource coordination message; and transmitting the resource coordination message to the respective one of the one or more transmitting devices in the determined format.

2 . The method of claim 1 , wherein receiving the one or more transmissions from the one or more transmitting devices comprises one or more of:
receiving one or more enquiry messages from the one or more transmitting devices; and receiving one or more Sidelink Control Information, SCIs, from the one or more transmitting devices.

3 . The method of claim 1 , wherein the one or more transmissions comprise multiple transmissions and receiving the one or more transmissions from the one or more transmitting devices further comprises one or more of:
receiving multiple transmissions from multiple transmitting devices; prioritizing the multiple transmissions based on one or more of:
a respective priority indicated in each of the multiple transmissions;
a respective target communication range indicated in each of the multiple transmissions; and
a respective Reference Signal Received Power, RSRP, of a physical channel carrying each of the multiple transmissions; and
prioritizing multiple resource coordination messages for the multiple transmitting devices to thereby avoid potential collision among the multiple resource coordination messages based on one or more of:
the respective target communication range indicated in each of the multiple transmissions; and
the respective RSRP of the physical channel carrying each of the multiple transmissions.

4 . The method of claim 3 , wherein the multiple transmissions are received from the multiple transmitting devices during a pre-defined time period.

5 . The method of claim 1 , wherein the one or more transmissions are received in a unicast mode, a groupcast mode, or a broadcast mode.

6 . The method of claim 1 , wherein determining whether to communicate the resource coordination message comprises determining to communicate the resource coordination message in response to receiving the respective one of the one or more transmissions in a unicast mode.

7 . The method of claim 1 , wherein determining whether to communicate the resource coordination message further comprises determining to communicate the resource coordination message in response to the receiving device being within a target communication range indicated by the respective one of the one or more transmissions.

8 . The method of claim 1 , wherein the one or more parameters obtained from the respective one of the one or more transmissions comprise one or more of:
a Sidelink-Reference Signal Received Power, SL-RSRP, measured on a reference signal, RS, of a physical channel carrying the respective one of the one or more transmissions; a distance determined between the receiving device and the respective one of the one or more transmitting devices; an arrival time at which the respective one of the one or more transmissions is received; and a priority associated with the respective one of the one or more transmissions.

9 - 12 . (canceled)

13 . The method of claim 1 , wherein determining whether to communicate the resource coordination message comprises determining to communicate the resource coordination message based on an arrival time at which the respective one of the one or more transmissions is received.

14 . The method of claim 1 , wherein determining the format for the resource coordination message comprises one of:
determining to use a map-based format in response to the one or more parameters being higher than a first threshold; determining to use a flag-based format in response to the one or more parameters being lower than a second threshold; determining to use an indicated format in response to receiving the indicated format in the respective one of the one or more transmissions; and determining to use a preconfigured format in response to the preconfigured format being different from the indicated format.

15 . A wireless device comprising processing circuitry configured to cause the wireless device to:
receive one or more transmissions from one or more transmitting devices; determine whether to communicate a resource coordination message to a respective one of the one or more transmitting devices based on one or more parameters obtained from a respective one of the one or more transmissions received from the respective one of the one or more transmitting devices; determine a format for the resource coordination message based on the one or more obtained parameters in response to determining to communicate the resource coordination message; and transmit the resource coordination message to the respective one of the one or more transmitting devices in the determined format.

16 . (canceled)

17 . A method performed by a transmitting device for enabling inter-User Equipment, UE, resource coordination, comprising one or more of:
transmitting at least one transmission to at least one receiving device; receiving at least one resource coordination message from the at least one receiving device in response to transmitting the at least one transmission; and performing one or more actions based on one or more parameters obtained from the at least one resource coordination message.

18 . The method of claim 17 , wherein transmitting the at least one transmission to the at least one receiving device comprises one or more of:
transmitting at least one enquiry message to the at least one receiving device; and transmitting at least one Sidelink Control Information, SCI, to the at least one receiving device.

19 . The method of claim 17 , wherein the at least one transmission is transmitted to the at least one receiving device in a unicast mode, a groupcast mode, or a broadcast mode.

20 . The method of claim 17 , wherein receiving the at least one resource coordination message comprises obtaining one or more parameters from the at least one resource coordination message, the one or more parameters comprising one or more of:
a Sidelink-Reference Signal Received Power, SL-RSRP, measured on a reference signal, RS, of a physical channel carrying the at least one resource coordination message; a distance between the transmitting device and the at least one receiving device; an arrival time at which the at least one resource coordination message is received; and a priority associated with the at least one resource coordination message.

21 - 24 . (canceled)

25 . A wireless device comprising processing circuitry configured to cause the wireless device to:
transmit at least one transmission to at least one receiving device; receive at least one resource coordination message from the at least one receiving device in response to transmitting the at least one transmission; and perform one or more actions in response to receiving the at least one resource coordination message.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Leon Calvo Jose Angel
• Do Hieu
• Ashraf Shehzad Ali
• Blasco Serrano Ricardo

Classifications

• H04W72/40 Primary

  Resource management for direct mode communication, e.g. D2D or sidelink · CPC title

• H04W72/25

  between terminals via a wireless link, e.g. sidelink · CPC title

• H04W72/563

  of the wireless resources · CPC title

• H04B17/328

  Reference signal received power [RSRP]; Reference signal received quality [RSRQ] · CPC title

• H04W72/02 Primary

  Selection of wireless resources by user or terminal · CPC title