Method and apparatus for resource allocation in V2X
Method and apparatus for resource allocation in V2X are disclosed. One method of a network equipment includes receiving a configuration request from a first UE, which is used to indicate that the first UE intends to assist in resource allocation for a group of UEs, wherein, the configuration request includes one or more of a group ID, group member information, the first UE ID and the first UE capability; determining one or more of the first UE are schedulers assisting in resource allocation for the group of UEs; transmitting a configuration response to the determined one or more of the first UE, which is used to indicate that the determined one or more of the first UE are the schedulers assisting in resource allocation for the group of UEs.
1. An apparatus for performing a network function, the apparatus comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the apparatus to:
receive a configuration request from a first user equipment, which is used to indicate that the first user equipment intends to assist in resource allocation for a group of user equipments, wherein the configuration request comprises at least one of:
a group identification;
group member information;
an identification of the first user equipment; or
a capability of the first user equipment;
determine, based at least in part on the configuration request, that the first user equipment is a scheduler assisting in resource allocation for the group of user equipments according to at least one of: the group member information, the capability of the first user equipment, or a signal strength from the first user equipment; and
transmit a configuration response to the first user equipment, which is used to indicate that the first user equipment is the scheduler assisting in resource allocation for the group of user equipments.
2. The apparatus of claim 1 , wherein the at least one processor is further configured to cause the apparatus to:
determine that a scheduler is not responsible for assisting in resource allocation for the group of user equipments; and
transmit a release command to the scheduler, which is used to indicate that the scheduler is not responsible for assisting in resource allocation for the group of user equipments.
3. The apparatus of claim 2 , wherein the at least one processor is further configured to cause the apparatus to determine that a scheduler is not responsible for assisting in resource allocation for the group of user equipments if the signal strength from the scheduler is below a first threshold for a first time duration, or a de-configuration request is received from the scheduler which is used to indicate that the scheduler does not intend to assist in resource allocation for the group of user equipments.
4. The apparatus of claim 2 , wherein the at least one processor is further configured to cause the apparatus to determine another first user equipment as a new scheduler assisting in resource allocation for the group of user equipments before transmitting the release command to the scheduler.
5. The apparatus of claim 1 , wherein the at least one processor is further configured to cause the apparatus to:
receive a scheduling request from the scheduler, which is used to indicate that resource allocation is required by a second user equipment in the group of user equipments, wherein the scheduling request includes at least one of:
the group identification;
an identification of the second user equipment;
a required resource amount; or
traffic pattern information;
determine a resource pool or dedicated resource available for the second user equipment in the group of user equipments; and
transmit a scheduling response to the scheduler, which is used to indicate the resource pool or dedicated resource available for the second user equipment in the group of user equipments.
6. The apparatus of claim 5 , wherein the at least one processor is further configured to cause the apparatus to:
determine to switch the second user equipment to another mode of resource allocation in which the resource allocation for the second user equipment is not assisted by the scheduler, if the available resource does not meet the required resource amount by the second user equipment; and
transmit the scheduling response to the scheduler, which is used to indicate that the second user equipment is switched to the another mode of resource allocation.
7. The apparatus of claim 5 , wherein the at least one processor is further configured to cause the apparatus to:
postpone scheduling of resource for the second user equipment, if the available resource does not meet the required resource amount by the second user equipment; and
transmit a scheduling response to the scheduler, which is used to indicate that the scheduling of resource for the second user equipment is postponed.
8. A user equipment (UE), comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
transmit a configuration request to a network equipment, which is used to indicate an intention of assisting in resource allocation for a group of user equipments, wherein the configuration request includes at least one of:
a group identification;
group member information;
an apparatus identification; or
an apparatus capability; and
receive a configuration response from the network equipment if the UE is selected as the scheduler by the network equipment based at least in part on the configuration request and according to at least one of: the group member information, the capability of the user equipment, or a signal strength from the user equipment.
9. The UE of claim 8 , wherein:
the at least one processor is further configured to cause the UE to receive a release command from the network equipment, which is used to indicate that the UE is not the scheduler assisting in resource allocation for the group of user equipments.
10. The UE of claim 9 , wherein, the release command is received from the network equipment in response to the signal strength to the network equipment being below a first threshold for a first time duration, or a de-configuration request is transmitted from the UE which is used to indicate no intention assisting in resource allocation for the group of user equipments.
11. The UE of claim 10 , wherein, if the de-configuration request is transmitted from the UE, the UE keeps serving as the scheduler until the release command is received from the network equipment.
12. The UE of claim 8 , wherein the at least one processor is further configured to cause the UE to:
broadcast an indication including the group identification to the group of user equipments, which is used to indicate that the UE is the scheduler assisting in resource allocation for the group of user equipments.
13. The UE of claim 12 , wherein the at least one processor is further configured to cause the UE to:
broadcast an indication further including a second threshold and a second time duration to the group of user equipments, which is used to indicate that the UE will be the scheduler assisting in resource allocation for the group of user equipments if the signal strength to the group of user equipments is higher than the second threshold for the second time duration.
14. The UE of claim 8 , wherein:
the at least one processor is further configured to cause the UE to:
receive a scheduling request from a second user equipment in the group of user equipments, which is used to indicate that resource allocation is required by the second user equipment, wherein, the scheduling request includes one or more of the group ID, an identification of the second user equipment, required resource amount and traffic pattern information;
transmit the scheduling request to the network equipment;
receives a scheduling response from the network equipment, which is used to indicate a resource pool or dedicated resource available for the second user equipment in the group of user equipments; and
transmit the scheduling response to the second user equipment.
15. An apparatus, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the apparatus to:
receive an indication from a first user equipment, which is used to indicate that the first user equipment intends to be a scheduler assisting in resource allocation for a group of user equipments including the apparatus, wherein the indication comprises at least one of: a group identification, group member information, an identification of the first user equipment, or a capability of the first user equipment; and
determine, based at least in part on the indication, that the first user equipment is the scheduler assisting in resource allocation according to at least one of: the group member information, the capability of the first user equipment, or a signal strength from the first user equipment.
16. The apparatus of claim 15 , wherein, the indication further includes a second threshold and a second time duration, and wherein:
the at least one processor is further configured to cause the apparatus to determine that the first user equipment is the scheduler assisting in resource allocation if the signal strength from the first user equipment is higher than the second threshold for the second time duration.
17. The apparatus of claim 15 , wherein:
the at least one processor is further configured to cause the apparatus to:
transmit a scheduling request to the scheduler, which is used to indicate that resource allocation is required by the apparatus, wherein the scheduling request includes one or more of the group ID, an identifier of the apparatus, required resource amount and traffic pattern information; and
receive a scheduling response from the scheduler, which is used to indicate an available resource pool or dedicated resource.
18. The apparatus of claim 17 , wherein:
the at least one processor is further configured to cause the apparatus to determine one scheduler each time to transmit the scheduling request, based on signal strength from the scheduler, in response to more than one schedulers being available.
19. The apparatus of claim 17 , wherein:
the at least one processor is further configured to determine another scheduler in in response to a scheduling response not being received for a third time duration since the transmission of the scheduling request, or signal strength from the scheduler is below a fourth threshold for a fourth time duration.