RESOURCE BROADCASTING METHOD AND APPARATUS

• US 20170041903A1
• Filed: 10/21/2016
• Published: 02/09/2017
• Est. Priority Date: 04/22/2014
• Status: Abandoned Application

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Ma, Jie, Cao, Zhenzhen
• Application Number:
  US15/299,700
• Publication Number:
  US 20170041903A1
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• 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 72/40 Resource management for direct mode communication, e.g. D2D or sidelink
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 92/18 between terminal devices

Abstract

The present invention relates to a resource broadcasting method and apparatus, including: sending a request message of requesting a first frequency domain resource and a first time domain resource that are used for device-to-device D2D communication; obtaining, from the first frequency domain resource obtained by requesting, a second frequency domain resource used for data transmission, and obtaining, from the first time domain resource obtained by requesting, a second time domain resource used for data transmission; and repeatedly sending a declaration message, where the declaration message includes: the second frequency domain resource and the second time domain resource. Therefore, a problem that two terminals occupy a same resource may be resolved.

Claims

1. A resource broadcasting method, comprising:

sending a request message for requesting a first frequency domain resource and a first time domain resource that are used for device-to-device (D2D) communication;

obtaining, from the first frequency domain resource, a second frequency domain resource used for data transmission, and obtaining, from the first time domain resource, a second time domain resource used for data transmission; and

repeatedly sending a declaration message comprising the second frequency domain resource and the second time domain resource.

2. The method according to claim 1, wherein sending a request message for requesting a frequency domain resource and a time domain resource that are used for D2D communication comprises:

sending the request message to a base station;

or

when a cluster broadcasts a frequency domain resource and a time domain resource that are used by the cluster, sending the request message to the cluster.

3. The method according to claim 2, wherein:

sending the request message to a base station comprises;

sending, to the base station, a request message of requesting a subframe set used for D2D communication; and

obtaining, from the first time domain resource obtained by requesting, a second time domain resource used for data transmission comprises;

obtaining, from the subframe set used for D2D communication, a subframe set used for data transmission.

4. The method according to claim 1, wherein the second time domain resource in the repeatedly sent declaration message comprises:

a second time domain resource used in a current time and a second time domain resource used next time.

5. The method according to claim 1, wherein repeatedly sending a declaration message comprises:

repeatedly sending the declaration message by using a Media Access Control control element (MAC CE) field;

or

repeatedly sending the declaration message by using a physical layer sequence.

6. A resource broadcasting method, comprising:

broadcasting, by a cluster, a frequency domain resource and a time domain resource that are used by the cluster, so that when receiving the frequency domain resource and the time domain resource, a terminal sends, to the cluster, a request message for requesting a first frequency domain resource and a first time domain resource that are used for device-to-device (D2D) communication; and

delivering, to the terminal, the first frequency domain resource and the first time domain resource, so that the terminal obtains, from the first frequency domain resource, a second frequency domain resource used for data transmission, and obtains, from the first time domain resource, a second time domain resource used for data transmission, and a first terminal repeatedly sends a declaration message comprising the second frequency domain resource and the second time domain resource.

7. The method according to claim 6, wherein:

the first time domain resource used for D2D communication is a subframe set used for D2D communication; and

correspondingly, the second time domain resource used for data transmission is a subframe set used for data transmission in the subframe set used for D2D communication.

8. The method according to claim 6, wherein the second time domain resource in the repeatedly sent declaration message comprises:

a second time domain resource used in a current time and a second time domain resource used next time.

9. The method according to claim 6, wherein the declaration message is repeatedly sent by using a Media Access Control control element (MAC CE) field or a physical layer sequence.

10. A resource broadcasting apparatus, comprising:

a network interface;

a processor;

a memory; and

an application program physically stored in the memory, wherein the application program comprises instructions that, when executed by the processor, cause the apparatus to;

send a request message for requesting a first frequency domain resource and a first time domain resource that are used for device-to-device (D2D) communication,

obtain, from the first frequency domain resource, a second frequency domain resource used for data transmission, and obtain, from the first time domain resource, a second time domain resource used for data transmission, and

repeatedly send a declaration message comprising the second frequency domain resource and the second time domain resource.

11. The apparatus according to claim 10, wherein the application program further comprises instructions that, when executed by the processor, cause the apparatus to:

send the request message to a base station;

or

when a cluster broadcasts a frequency domain resource and a time domain resource that are used by the cluster, send the request message to the cluster.

12. The apparatus according to claim 11, wherein the application program further comprises instructions that, when executed by the processor, cause the apparatus to:

send, to the base station, a request message for requesting a subframe set used for D2D communication; and

obtain, from the base station, a subframe set used for data transmission.

13. The apparatus according to claim 10, wherein the second time domain resource in the repeatedly sent declaration message comprises:

a second time domain resource used in a current time and a second time domain resource used next time.

14. The apparatus according to claim 10, wherein the application program further comprises instructions that, when executed by the processor, cause the apparatus to:

repeatedly send the declaration message by using a Media Access Control control element (MAC CE) field;

or

repeatedly send the declaration message by using a physical layer sequence.

15. A resource broadcasting apparatus, comprising:

a network interface;

a processor;

a memory; and

an application program physically stored in the memory, wherein the application program comprises instructions that, when executed by the processor, cause the apparatus to;

broadcast a frequency domain resource and a time domain resource that are used by a cluster, so that when receiving the frequency domain resource and the time domain resource, a terminal sends, to the cluster, a request message of requesting a first frequency domain resource and a first time domain resource that are used for device-to-device (D2D) communication, and

deliver, to the terminal, the first frequency domain resource and the first time domain resource, so that the terminal obtains, from the first frequency domain resource, a second frequency domain resource used for data transmission, and obtains, from the first time domain resource, a second time domain resource used for data transmission, and a first terminal repeatedly sends a declaration message comprising the second frequency domain resource and the second time domain resource.

16. The apparatus according to claim 15, wherein:

the first time domain resource used for D2D communication is a subframe set used for D2D communication; and

correspondingly, the second time domain resource used for data transmission is a subframe set used for data transmission in the subframe set used for D2D communication.

17. The apparatus according to claim 15, wherein the second time domain resource in the repeatedly sent declaration message comprises:

a second time domain resource used in a current time and a second time domain resource used next time.

18. The apparatus according to claim 15, wherein the declaration message is repeatedly sent by using a Media Access Control control element (MAC CE) field or a physical layer sequence.