Resource allocation for D2D discovery in an LTE network

• US 10,251,187 B2
• Filed: 04/02/2018
• Issued: 04/02/2019
• Est. Priority Date: 10/31/2013
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Chatterjee, Debdeep, Khoryaev, Alexey Vladimirovich, Niu, Huaning, Xiong, Gang
• Primary Examiner(s): Towfighi, Afshawn M
• Application Number:
  US15/942,974
• Publication Number:
  US 20180227932A1
• Time in Patent Office: 365 Days
• Field of Search: None
• CPC Class Codes: H04B 17/17 Detection of non-compliance or faulty performance, e.g. response deviations H04B17/18 takes precedence
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04B 7/0413 MIMO systems
• CPC Class Codes: H04J 3/1694 Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers Passive Optical Networks H04Q11/0062
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/0215 based on user or device properties, e.g. MTC-capable devices services for machine-to-machine communication [M2M] or machine type communication [MTC] H04W4/70; wireless resource selection or allocation plan definition based on terminal or device properties H04W72/51
• CPC Class Codes: H04W 28/08 Load balancing or load distribution transferring a connection for handling the traffic H04W36/22; wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 36/0069 in case of dual connectivity, e.g. decoupled uplink/downlink
• CPC Class Codes: H04W 36/00692 using simultaneous multiple data streams, e.g. cooperative multipoint [CoMP], carrier aggregation [CA] or multiple input multiple output [MIMO] allocation of physical resources in CoMP or in CA H04L5/0035
• CPC Class Codes: H04W 36/305 Handover due to radio link failure control signalling for hand-off failure H04W36/0079
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 4/50 Service provisioning or reconfiguring
• CPC Class Codes: H04W 4/60 Subscription-based services using application servers or record carriers, e.g. SIM application toolkits
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 48/06 based on traffic conditions
• CPC Class Codes: H04W 48/08 : Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/12 : using downlink control channel
• CPC Class Codes: H04W 48/18 : Selecting a network or a communication service
• CPC Class Codes: H04W 52/346 : distributing total power among users or channels
• CPC Class Codes: H04W 56/001 : Synchronization between nodes
• CPC Class Codes: H04W 56/002 : Mutual synchronization
• CPC Class Codes: H04W 60/00 : Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 60/02 : by periodical registration
• CPC Class Codes: H04W 72/0453 : Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/51 : based on terminal or device properties
• CPC Class Codes: H04W 72/52 : based on load
• CPC Class Codes: H04W 72/542 : using measured or perceived quality
• CPC Class Codes: H04W 72/56 : based on priority criteria
• CPC Class Codes: H04W 74/004 : in the uplink, i.e. towards network
• CPC Class Codes: H04W 74/0833 : Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 76/15 : Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/18 : Management of setup rejection or failure
• CPC Class Codes: H04W 76/19 : Connection re-establishment
• CPC Class Codes: H04W 8/005 : Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 8/04 : Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: H04W 8/06 : Registration at serving network Location Register, VLR or user mobility server
• CPC Class Codes: H04W 8/183 : Processing at user equipment or user record carrier
• CPC Class Codes: H04W 84/12 : WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: H04W 88/16 : Gateway arrangements
• CPC Class Codes: H04W 88/18 : Service support devices; Network management devices
• CPC Class Codes: H04W 92/20 : between access points
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Embodiments of user equipment (UE), an enhanced node B (eNB), and methods of signaling for proximity services and device-to-device (D2D) discovery in an LTE network are generally described herein. In some embodiments, the UE receives configuration information for a D2D discovery resource pool of a cell. The configuration information includes an indication that the D2D discovery resource pool has been logically divided into a plurality of sub-discovery resource pools. The UE performs an initial transmission of a discovery signal in a discovery period using a single D2D discovery resource from a first sub-discovery resource pool of the plurality of sub-discovery resource pools. The UE performs a number of additional transmissions of the discovery signal in the discovery period using additional D2D discovery resources from sub-discovery resource pools of the plurality of sub-discovery resource pools other than the first sub-discovery resource pool. Other apparatuses and methods are also described.

Claims

1. An apparatus of a user equipment (UE), the apparatus comprising:

processing circuitry, the processing circuitry configured to;

decode signaling with device-to-device (D2D) discovery configuration information, the discovery configuration information including a discovery resource pool with a set of subframes;

decode a transmission probability factor from an evolved Node-B (eNB) serving a cell associated with the UE, the transmission probability factor indicating a probability of transmission during a discovery period; and

encode a D2D discovery signal for an initial transmission during the discovery period and using a subframe from the set of subframes in the discovery resource pool,

wherein a probability that the UE is configured to transmit the discovery signal is based on the transmission probability factor, and

wherein the discovery period is a Type 1 D2D discovery period for non-UE specific transmissions or a Type 2 D2D discovery period for UE-specific transmissions, and the initial transmission takes place during contiguous resource blocks of the subframe; and

memory, the memory coupled to the processing circuitry and configured to store the transmission probability factor.

2. The apparatus of claim 1, wherein the processing circuitry is configured to:

cause additional transmissions of the discovery signal using at least another subframe of the set of subframes in the discovery resource pool.

3. The apparatus of claim 2, wherein each transmission of the additional transmissions is performed using at least two physical resource blocks per slot associated with the at least another subframe.

4. The apparatus of claim 1, wherein the signaling includes higher-layer signaling.

5. The apparatus of claim 4, wherein the higher-layer signaling includes radio resource control (RRC) signaling.

6. The apparatus of claim 1, wherein a number of the additional transmissions is based on a value provided by an evolved Node-B (eNB) serving a cell associated with the LTE.

7. The apparatus of claim 1, wherein the processing circuitry is configured to:

encode a resource request for Type 2 UE-specific D2D discovery resources within the discovery resource pool.

8. The apparatus of claim 7, wherein the resource request includes a power measurement report for the D2D discovery resources.

9. The apparatus of claim 7, wherein the request includes indices of M discovery resources with a lowest received power within the discovery resource pool, M being an integer greater than or equal to 1.

10. The apparatus of claim 2, wherein the discovery configuration information includes an indication that the discovery resource pool is logically subdivided into a plurality of sub-discovery resource pools.

11. The apparatus of claim 10, wherein the processing circuitry is configured to:

encode the discovery signal for the initial transmission during the discovery period using resources from a first sub-discovery resource pool of the plurality of sub-discovery resource pools.

12. The apparatus of claim 11, wherein the processing circuitry is configured to:

encode the discovery signal for the additional transmissions using additional D2D discovery resources from at least a second sub-discovery resource pool of the plurality of sub-discovery resource pools.

13. The apparatus of claim 12, wherein the processing circuitry is configured to:

select the additional D2D discovery resources from the plurality of sub-discovery resource pools based on a hopping pattern that maps resources of the first sub-discovery resource pool to resources of other sub-discovery resource pools of the plurality of sub-discovery resource pools.

14. The apparatus of claim 1, wherein the processing circuitry is configured to:

select the subframe for the initial transmission of the discovery signal from the discovery resource pool according to a randomness algorithm such that a probability of a first D2D discovery resource will be selected from the discovery resource pool is equal to a probability that any other D2D discovery resource will be selected from the discovery resource pool.

15. The apparatus of claim 1, wherein the D2D discovery signal includes a discovery media access control (MAC) protocol data unit (PDU) formatted in accordance with a standard of the 3rd Generation Partnership Project (3GPP) family of standards for Long Term Evolution (LTE).

16. The apparatus of claim 1, further comprising:

one or more antennas; and

transceiver circuitry coupled to the processing circuitry and the one or more antennas, and configured to transmit the D2D discovery signal.

17. A computer-readable storage device including instructions stored thereon, which when executed by one or more processors of a User Equipment (UE), cause the HE to perform operations to:

decode signaling with device-to-device (D2D) discovery configuration information, the discovery configuration information including a discovery resource pool with a set of subframes;

decode a transmission probability factor from an evolved Node-B (eNB) serving a cell associated with the UE, the transmission probability factor indicating a probability of transmission during a discovery period; and

encode a D2D discovery signal for an initial transmission during the discovery period and using a subframe from the set of subframes in the discovery resource pool,

wherein a probability that the UE is configured to transmit the discovery signal is based on the transmission probability factor, and

wherein the discovery period is a Type 1 D2D discovery period for non-UE specific transmissions or a Type 2 D2D discovery period for HE-specific transmissions, and the initial transmission takes place during contiguous resource blocks of the subframe.

18. The computer-readable storage device of claim 17, wherein the instructions further cause the HE to:

cause additional transmissions of the discovery signal using at least another subframe of the set of subframes in the discovery resource pool.

19. The computer-readable storage device of claim 18, wherein each transmission of the additional transmissions is performed using at least two physical resource blocks per slot associated with the at least another subframe.

20. The computer-readable storage device of claim 18, wherein a number of the additional transmissions is based on a value provided by an evolved Node-B (eNB) serving a cell associated with the UE.

21. The computer-readable storage device of claim 17, wherein the instructions further cause the LT to:

encode a resource request for Type 2 UE-specific D2D discovery resources within the discovery resource pool.

22. The computer-readable storage device of claim 21, wherein the resource request includes a power measurement report for the D2D discovery resources.

23. The computer-readable storage device of claim 21, wherein the request includes indices of M discovery resources with a lowest received power within the discovery resource pool, M being an integer greater than or equal to 1.

24. The computer-readable storage device of claim 18, wherein the discovery configuration information includes an indication that the discovery resource pool is logically subdivided into a plurality of sub-discovery resource pools.

25. The computer-readable storage device of claim 24, wherein the instructions further cause the UE to:

encode the discovery signal for the initial transmission during the discovery period using resources from a first sub-discovery resource pool of the plurality of sub-discovery resource pools.

26. The computer-readable storage device of claim 25, wherein the instructions further cause the UE to:

encode the discovery signal for the additional transmissions using additional D2D discovery resources from at least a second sub-discovery resource pool of the plurality of sub-discovery resource pools.

27. The computer-readable storage device of claim 26, wherein the instructions further cause the UE to:

select the additional D2D discovery resources from the plurality of sub-discovery resource pools based on a hopping pattern that maps resources of the first sub-discovery resource pool to resources of other sub-discovery resource pools of the plurality of sub-discovery resource pools.