Allocating and determining resources for a device-to-device link

• US 9,185,690 B2
• Filed: 02/29/2012
• Issued: 11/10/2015
• Est. Priority Date: 02/29/2012
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Khoshnevis, Ahmad, Yamada, Shohei, Yin, Zhanping, Kowalski, John M.
• Primary Examiner(s): Rinehart, Mark
• Assistant Examiner(s): SOLINSKY, PETER G
• Application Number:
  US13/408,910
• Publication Number:
  US 20130223356A1
• Time in Patent Office: 1,350 Days
• Field of Search: 370/329, 455/509, 455/522
• US Class Current: 1/1
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 92/18 between terminal devices

Abstract

An evolved Node B (eNB) for allocating resources for a device-to-device (D2D) link between User Equipments (UEs) is described. The eNB includes a processor and instructions stored in memory that is in electronic communication with the processor. The eNB allocates resources for a D2D signal. The D2D signal is transmitted or received by the UE in uplink spectrum in a case of Frequency Division Duplexing (FDD) or in uplink subframes in a case of Time Division Duplexing (TDD).

Claims

1. An evolved Node B (eNB) for allocating resources for a device-to-device (D2D) transmission or reception between User Equipments (UEs), comprising:

a processor;

memory in electronic communication with the processor;

instructions stored in the memory, the instructions being executable to;

allocate resources for a D2D signal by Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH), wherein Cyclic Redundancy Check (CRC) of the DCI is scrambled by a different sequence for a D2D link than a Cell Radio Network Temporary Identifier (C-RNTI) for a normal link and the D2D signal is transmitted or received by the UE and the resources for the D2D signal are allocated by the DCI for a certain period of time wherein the period is semi-statically configured.

2. The eNB of claim 1, wherein the D2D signal is transmitted or received on a Physical Uplink Shared Channel (PUSCH).

3. The eNB of claim 1, wherein the UE transmits the D2D signal to or receives the D2D signal from another UE that communicates with the eNB.

4. The eNB of claim 1, wherein the UE transmits the D2D signal to or receives the D2D signal from another UE that communicates with another eNB.

5. A User Equipment (UE) for determining resources for a device-to-device (D2D) transmission, comprising:

a processor;

memory in electronic communication with the processor;

instructions stored in the memory, the instructions being executable to;

receive resource allocation for a D2D signal by Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH), wherein Cyclic Redundancy Check (CRC) of the DCI is scrambled by a different sequence for a D2D link than a Cell Radio Network Temporary Identifier (C-RNTI) for a normal link and the resources for the D2D signal are allocated by the DCI for a certain period of time wherein the period is semi-statically configured.

6. The UE of claim 5, wherein the D2D signal is transmitted on a Physical Uplink Shared Channel (PUSCH).

7. The UE of claim 5, wherein the instructions are further executable to communicate with an evolved Node B (eNB).

8. The UE of claim 7, wherein the UE transmits the D2D signal to UE that communicates with the same eNB.

9. The UE of claim 7, wherein the UE transmits the D2D signal to another UE that communicates with another eNB.

10. A method for allocating resources for a device-to-device (D2D) transmission or reception between User Equipments (UEs) by an evolved Node B (eNB), comprising:

allocating resources for a D2D signal by Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH), wherein Cyclic Redundancy Check (CRC) of the DCI is scrambled by a different sequence for a D2D link than a Cell Radio Network Temporary Identifier (C-RNTI) for a normal link and the resources for the D2D signal are allocated by the DCI for a certain period of time wherein the period is semi-statically configured.

11. The method of claim 10, wherein the D2D signal is transmitted or received on a Physical Uplink Shared Channel (PUSCH).

12. The method of claim 10, wherein the UE transmits the D2D signal to or receives the D2D signal from another UE that communicates with the eNB.

13. The method of claim 10, wherein the UE transmits the D2D signal to or receives the D2D signal from another UE that communicates with another eNB.

14. A method for determining resources for a device-to-device (D2D) transmission by a User Equipment (UE), comprising:

receiving resource allocation for a D2D signal by Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH), wherein Cyclic Redundancy Check (CRC) of the DCI is scrambled by a different sequence for a D2D link than a Cell Radio Network Temporary Identifier (C-RNTI) for a normal link and the resources for the D2D signal are allocated by the DCI for a certain period of time wherein the period is semi-statically configured.

15. The method of claim 14, wherein the D2D signal is transmitted on a Physical Uplink Shared Channel (PUSCH).

16. The method of claim 14, further comprising communicating with an evolved Node B (eNB).

17. The method of claim 16, wherein the UE transmits the D2D signal to another UE that communicates with the same eNB.

18. The method of claim 16, wherein the UE transmits the D2D signal to another UE that communicates with another eNB.