Method for avoiding collisions between open discovery and cellular resource

• US 10,715,991 B2
• Filed: 06/12/2017
• Issued: 07/14/2020
• Est. Priority Date: 10/08/2013
• Status: Active Grant

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Sartori, Philippe, Desai, Vipul, Bagheri, Hossein, Soong, Anthony C. K.
• Primary Examiner(s): Sheikh, Ayaz R
• Assistant Examiner(s): Asefa, Debebe A
• Application Number:
  US15/620,517
• Publication Number:
  US 20170280312A1
• Time in Patent Office: 1,128 Days
• CPC Class Codes: H04W 72/569 of the traffic information
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals

Abstract

A device is configured to perform a method of wireless communication in a wireless communication network. The method includes receiving, from a communications controller, a device-to-device (D2D) subframe configuration to communicate with one or more second wireless devices, the subframe configuration indicating one or more subframes in which to transmit a D2D signal or receive one or more D2D signals. The method also includes receiving, from the communications controller, scheduling information to transmit a first signal to the communications controller on a subframe indicated by the D2D subframe configuration. The method further includes prioritizing the transmission of the first signal over a transmission of the D2D signal or a reception of the one or more D2D signals, and transmitting the first signal.

Claims

1. A method comprising:

receiving, by a user equipment from a communications controller, uplink or downlink scheduling information to transmit an uplink control signal on a physical uplink channel to the communications controller on a subframe designated for device-to-device (D2D) signaling by a D2D subframe configuration designating one or more subframes in which to transmit or receive one or more D2D discovery signals;

prioritizing, by the user equipment based on contents of the received uplink or downlink scheduling information, transmission of the uplink control signal on the subframe designated for D2D signaling by the D2D subframe configuration over a transmission or a reception of the one or more D2D discovery signals,

the one or more D2D discovery signals comprising a Type 1 discovery signal or a Type 2 discovery signal, the Type 1 discovery signal for allocating discovery signal transmission resources on a non user equipment-specific basis, and the Type 2 discovery signal for allocating the discovery signal transmission resources on a per user equipment-specific basis; and

transmitting, by the user equipment, the uplink control signal on the subframe designated for D2D signaling by the D2D subframe configuration to the communications controller.

2. The method of claim 1, wherein the one or more D2D discovery signals comprise the Type 1 discovery signal.

3. The method of claim 1, wherein the one or more D2D discovery signals comprise the Type 2 discovery signal.

4. The method of claim 1, wherein the contents of the received downlink scheduling information comprises a physical downlink control channel (PDCCH) order.

5. The method of claim 1, wherein the physical uplink channel comprises a random access channel (RACH).

6. The method of claim 1, wherein the physical uplink channel comprises a physical uplink control channel (PUCCH).

7. The method of claim 1, wherein the physical uplink channel comprises a physical uplink shared channel (PUSCH).

8. The method of claim 1, wherein the uplink control signal is transmitted in response to receiving downlink data scheduled by the received downlink scheduling information.

9. A user equipment comprising:

at least one antenna configured to transmit and receive signals; and

at least one processor coupled to the at least one antenna, and configured to;

receive, from a communications controller, uplink or downlink scheduling information to transmit an uplink control signal on a physical uplink channel to the communications controller on a subframe designated for device-to-device (D2D) signaling by a D2D subframe configuration designating one or more subframes in which to transmit or receive one or more D2D discovery signals, wherein the one or more D2D discovery signals comprise a Type 1 discovery signal or a Type 2 discovery signal, the Type 1 discovery signal for allocating discovery signal transmission resources on a non user equipment-specific basis, and the Type 2 discovery signal for allocating the discovery signal transmission resources on a per user equipment-specific basis,

prioritize, by the user equipment based on contents of the received uplink or downlink scheduling information, transmission of the uplink control signal on the subframe designated for D2D signaling by the D2D subframe configuration over a transmission or a reception of the one or more D2D discovery signals, and

transmit the uplink control signal over the at least one antenna on the subframe designated for D2D signaling by the D2D subframe configuration to the communications controller.

10. The user equipment of claim 9, wherein the one or more D2D discovery signals comprise the Type 1 discovery signal.

11. The user equipment of claim 9, wherein the one or more D2D discovery signals comprise the Type 2 discovery signal.

12. The user equipment of claim 9, wherein the contents of the received downlink scheduling information comprises a physical downlink control channel (PDCCH) order.

13. The user equipment of claim 9, wherein the physical uplink channel comprises a random access channel (RACH).

14. The user equipment of claim 9, wherein the physical uplink channel comprises a physical uplink control channel (PUCCH).

15. The user equipment of claim 9, wherein the physical uplink channel comprises a physical uplink shared channel (PUSCH).

16. The user equipment of claim 9, wherein the uplink control signal is transmitted in response to receiving downlink data scheduled by the received downlink scheduling information.

17. A non-transitory computer readable medium embodying a computer program for a user equipment, the computer program comprising computer readable program code to:

receive, from a communications controller, uplink or downlink scheduling information to transmit an uplink control signal on a physical uplink channel to the communications controller on a subframe designated for device-to-device (D2D) signaling by a D2D subframe configuration designating one or more subframes in which to transmit or receive one or more D2D discovery signals, wherein the one or more D2D discovery signals comprise a Type 1 discovery signal or a Type 2 discovery signal, the Type 1 discovery signal for allocating discovery signal transmission resources on a non user equipment-specific basis, and the Type 2 discovery signal for allocating the discovery signal transmission resources on a per-user equipment-specific basis;

prioritize, by the user equipment based on contents of the received uplink or downlink scheduling information, transmission of the uplink control signal on the subframe designated for D2D signaling by the D2D subframe configuration over a transmission or a reception of the one or more D2D discovery signals; and

transmit the uplink control signal on the subframe designated for D2D signaling by the D2D subframe configuration to the communications controller.

18. The non-transitory computer readable medium of claim 17, wherein the physical uplink channel comprises a physical uplink shared channel (PUSCH).

19. The non-transitory computer readable medium of claim 17, wherein the one or more D2D discovery signals comprise the Type 1 discovery signal.

20. The non-transitory computer readable medium of claim 17, wherein the one or more D2D discovery signals comprise the Type 2 discovery signal.

21. The non-transitory computer readable medium of claim 17, wherein the uplink control signal is transmitted in response to receiving downlink data scheduled by the received downlink scheduling information.