MANAGEMENT OF DEVICE-TO-DEVICE COMMUNICATION RESOURCES

• US 20160374105A1
• Filed: 12/18/2014
• Published: 12/22/2016
• Est. Priority Date: 12/20/2013
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: KALHAN, Amit, CHANG, Henry
• Granted Patent: US 10,548,148 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 36/0022 for transferring data sessions between adjacent core network technologies
• CPC Class Codes: H04W 36/0061 of neighbour cell information
• CPC Class Codes: H04W 36/305 Handover due to radio link failure control signalling for hand-off failure H04W36/0079
• CPC Class Codes: H04W 36/36 by user or terminal equipment
• CPC Class Codes: H04W 4/08 User group management
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/14 using user query or user detection
• CPC Class Codes: H04W 56/001 Synchronization between nodes
• CPC Class Codes: H04W 56/0015 one node acting as a reference for the others
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 72/56 based on priority criteria
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A base station assigns a first set of device-to-device (D2D) communication resources to a first D2D group and assigns a second set of D2D communication resources to a second D2D group. The D2D communication resources of the first set are different from the D2D communication resources of the second set. The first set of D2D communication resources and the second set of D2D communication resources are subsets of reserved D2D communication resources which are a subset of defined uplink communication resources defined by a communication specification for uplink communication between the D2D UE devices and a base station where the reserved D2D communication resources not used for uplink transmission to the base station.

Claims

1. A method comprising:

identifying a first device-to-device (D2D) group comprising a plurality of D2D user equipment (UE) devices;

identifying a second D2D group comprising another plurality of D2D UE devices;

assigning a first set of D2D communication resources to the first D2D group and assigning a second set of D2D communication resources to the second D2D group, the D2D communication resources of the first set being different from the D2D communication resources of the second set, the first set of D2D communication resources and the second set of D2D communication resources being subsets of reserved D2D communication resources which are a subset of defined uplink communication resources defined by a communication specification for uplink communication between the D2D UE devices and a base station, the reserved D2D communication resources not used for uplink transmission to the base station.

2. The method of claim 1 further comprising:

determining a first priority level for D2D communication between the UE devices of the first D2D group;

determining a second priority level for D2D communication between the UE devices of the second D2D group;

assigning, based on the first priority level and the second priority level, the first set of D2D communication resources to the first D2D group the second set of D2D communication resources to the second D2D group.

3. The method of claim 2, further comprising:

receiving, from a network, priority information identifying the first priority level as the priority level of the first D2D group and identifying the second priority level as the priority level of the second D2D group.

4. The method of claim 3, wherein the priority information associates the first priority level with a first Group ID of the first D2D group and associates the second priority level with a second Group ID of the second D2D group.

5. The method of claim 2, further comprising:

receiving, from a relaying UE device, priority information identifying the first priority level as the priority level of the first D2D group.

6. The method of claim 5, wherein the priority information associates the first priority level with a Group ID of the first D2D group.

7. The method of claim 1, wherein first selected communication resources of the first set of D2D communication resources are selected by one or more UE devices of the first group for D2D transmission at times determined by the one or more UE devices of the first D2D group and wherein second selected communication resources of the second set of D2D communication resources are selected by one or more UE devices of the second group for D2D transmission at times determined by the one or more UE devices of the second group.

8. The method of claim 7, wherein the selected communication resources are selected by using a selected communication resource only if a determination is made than no other UE device is using the selected communication resource.

9. The method of claim 1, wherein the reserved D2D communication resources comprise reserved in-coverage (InC) D2D communication resources and reserved out-of-coverage (OoC) D2D communication resources, the InC D2D communication resources comprising the first set of D2D communication resources and the second set of communication resources, the reserved InC D2D communication resources reserved for D2D transmission by InC D2D UE devices that are within a service area of the base station, the reserved OoC D2D communication resources reserved for D2D transmission by OoC D2D UE devices that are outside the service area.

10. The method of claim 9, wherein the first D2D group comprises an InC D2D UE device located within the service area and an OoC D2D UE device located outside the service area, the InC D2D UE device transmitting D2D signals using selected D2D communication resources within the first set of D2D communication resources and the OoC D2D UE device transmitting D2D signals using only selected D2D communication resources selected from the reserved OoC D2D communication resources.

11. The method of claim 1, further comprising:

broadcasting communication resource allocation information within the service area, the communication resource allocation information indicating that the first set of D2D communication resources are assigned to the first D2D group and that the second set of D2D communication resources are assigned to the second D2D group.

12. The method of claim 1, further comprising:

transmitting communication resource allocation information over individual signaling to each D2D UE device of the first D2D group, the communication resource allocation information indicating that the first set of D2D communication resources are assigned to the first D2D group.

13. The method of claim 1, further comprising:

transmitting first communication resource allocation information to at least one D2D UE device of the first D2D group and transmitting second communication resource allocation information to at least one D2D UE device of the second D2D group, the first communication resource allocation information indicating that the first set of D2D communication resources are assigned to the first D2D group, the second communication resource allocation information indicating that the second set of D2D communication resources are assigned to the second D2D group.

14. A cellular communication system comprising:

a base station providing wireless service within a service area;

a first device-to-device (D2D) group comprising a plurality of D2D user equipment (UE) devices;

a second D2D group comprising another plurality of D2D UE devices, the base station configured to assign a first set of D2D communication resources to the first D2D group and assign a second set of D2D communication resources to the second D2D group, the D2D communication resources of the first set being different from the D2D communication resources of the second set, the first set of D2D communication resources and the second set of D2D communication resources being subsets of reserved D2D communication resources which are a subset of defined uplink communication resources defined by a communication specification for uplink communication between the D2D UE devices and a base station, the reserved D2D communication resources not used for uplink transmission to the base station.

15. The communication system of claim 14, the base station further configured to:

determine a first priority level for D2D communication between the UE devices of the first D2D group;

determine a second priority level for D2D communication between the UE devices of the second D2D group;

assign, based on the first priority level and the second priority level, the first set of D2D communication resources to the first D2D group the second set of D2D communication resources to the second D2D group.

16. The communication system of claim 15, the base station further configured to receive, from a network, priority information identifying the first priority level as the priority level of the first D2D group and identifying the second priority level as the priority level of the second D2D group.

17. The communication system of claim 16, wherein the priority information associates the first priority level with a first Group ID of the first D2D group and associates the second priority level with a second Group ID of the second D2D group.

18. The communication system of claim 15, the base station further configured to receive, from a relaying UE device, priority information identifying the first priority level as the priority level of the first D2D group.

19. The communication system of claim 18, wherein the priority information associates the first priority level with a Group ID of the first D2D group.

20. The communication system of claim 14, wherein first selected communication resources of the first set of D2D communication resources are selected by one or more UE devices of the first group for D2D transmission at times determined by the one or more UE devices of the first D2D group and wherein second selected communication resources of the second set of D2D communication resources are selected by one or more UE devices of the second group for D2D transmission at times determined by the one or more UE devices of the second group.

21. The communication system of claim 20, wherein the selected communication resources are selected by using a selected communication resource only if a determination is made than no other UE device is using the selected communication resource.

22. The communication system of claim 14, wherein the reserved D2D communication resources comprise reserved in-coverage (InC) D2D communication resources and reserved out-of-coverage (OoC) D2D communication resources, the InC D2D communication resources comprising the first set of D2D communication resources and the second set of communication resources, the reserved InC D2D communication resources reserved for D2D transmission by InC D2D UE devices that are within a service area of the base station, the reserved OoC D2D communication resources reserved for D2D transmission by OoC D2D UE devices that are outside the service area.

23. The communication system of claim 22, wherein the first D2D group comprises an InC D2D UE device located within the service area and an OoC D2D UE device located outside the service area, the InC D2D UE device transmitting D2D signals using selected D2D communication resources within the first set of D2D communication resources and the OoC D2D UE device transmitting D2D signals using only selected D2D communication resources selected from the reserved OoC D2D communication resources.

24. The communication system of claim 14, base station comprising:

a transmitter configured to broadcast communication resource allocation information within the service area, the communication resource allocation information indicating that the first set of D2D communication resources are assigned to the first D2D group and that the second set of D2D communication resources are assigned to the second D2D group.

25. The communication system of claim 14, further comprising:

a transmitter configured to transmit communication resource allocation information over individual signaling to each D2D UE device of the first D2D group, the communication resource allocation information indicating that the first set of D2D communication resources are assigned to the first D2D group.

26. The communication system of claim 14, the base station comprising:

a transmitter configured to transmit first communication resource allocation information to at least one D2D UE device of the first D2D group and transmitting second communication resource allocation information to at least one D2D UE device of the second D2D group, the first communication resource allocation information indicating that the first set of D2D communication resources are assigned to the first D2D group, the second communication resource allocation information indicating that the second set of D2D communication resources are assigned to the second D2D group.