METHOD AND APPARATUS FOR PROCESSING A DATA TRANSMISSION CONFLICT OF A RELAY-NODE

• US 20120207083A1
• Filed: 09/03/2010
• Published: 08/16/2012
• Est. Priority Date: 10/23/2009
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Chen, Si, Zhang, Jian, Wang, Guanzhou, Zhang, Yincheng
• Granted Patent: US 9,084,237 B2
• Time in Patent Office: Days
• US Class Current: 370/315
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

The present invention discloses a method and an apparatus for processing a data transmission conflict of a relay-node (RN), wherein the method for processing comprises: under the circumstance that the above RN is configured with multi-subframe scheduling resources on a backhaul subframe, if the above RN has acquired dynamic resources on the above backhaul subframe, receiving or sending, by the above RN, data by using the above multi-subframe scheduling resources or the above dynamic resources on the above backhaul subframe, or performing no processing; if the above RN has acquired semi-persistent resources on the above backhaul subframe, receiving or sending, by the above RN, data by using the above multi-subframe scheduling resources or the above semi-persistent resources on the above backhaul subframe, or performing no processing. According to the present invention, the problem of the data transmission conflict is solved, thereby achieving the normal transmission.

Claims

1. A method for processing a data transmission conflict of a relay-node (RN), wherein the RN is configured with multi-subframe scheduling resources on a backhaul subframe, and the method comprises:

if the RN having acquired dynamic resources on the backhaul subframe, the RN receiving or sending data by using the multi-subframe scheduling resources or the dynamic resources on the backhaul subframe, or performing no processing; and

if the RN having acquired semi-persistent resources on the backhaul subframe, the RN receiving or sending data by using the multi-subframe scheduling resources or the semi-persistent resources on the backhaul subframe, or performing no processing.

2. The method according to claim 1, wherein the step of the RN having acquired dynamic resources comprises:

on the backhaul subframe or before the backhaul subframe, the RN detecting and obtaining the dynamic resources by a temporary cell radio network identifier (C-RNTI) or a dedicated C-RNTI of the RN on a physical downlink control channel (R-PDCCH) which is dedicated to RNs.

3. The method according to claim 1, wherein under the circumstance that the RN sends the data, the step of the RN having acquired dynamic resources comprises:

on the backhaul subframe, the RN being configured with the dynamic resources used for non-adaptive retransmission, to instruct the RN to send the data on the backhaul subframe.

4. The method according to claim 1, wherein the step of the RN having acquired semi-persistent resources comprises:

on the backhaul subframe or before the backhaul subframe, the RN detecting and obtaining the semi-persistent resources by a temporary semi-persistent scheduling cell radio network identifier (SPS C-RNTI) or a dedicated SPS C-RNTI of the RN on a physical downlink control channel (R-PDCCH) which is dedicated to RNs;

or

on the backhaul subframe, the RN being configured with the semi-persistent resources.

5. The method according to claim 1, wherein under the circumstance that the RN has acquired the dynamic resources, the method further comprises:

on the backhaul subframe, after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN deleting the configuration for the multi-subframe scheduling resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN reserving the configuration for the multi-subframe scheduling resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the dynamic resources, the RN deleting or reserving the configuration for the multi-subframe scheduling resources.

6. The method according to claim 5, wherein under the circumstance that the RN uses the dynamic resources and the RN reserves the multi-subframe scheduling resources, the method further comprises:

on the next backhaul subframe which is located after the backhaul subframe and instructed by a multi-subframe scheduling, the RN using a hybrid automatic repeat request (HARQ) process corresponding to the next backhaul subframe, or using an HARQ process corresponding to the backhaul subframe.

7. The method according to claim 1, wherein under the circumstance that the RN has acquired the semi-persistent resources, the method further comprises:

on the backhaul subframe, after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN deleting the configuration for the multi-subframe scheduling resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN reserving the configuration for the multi-subframe scheduling resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the semi-persistent resources, the RN deleting or reserving the configuration for the multi-subframe scheduling resources.

8. The method according to claim 7, wherein the method further comprises:

on the backhaul subframe, before or after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN deleting or reserving the configuration for the semi-persistent resources;

or

on the backhaul subframe, after the RN having received or sent the data by using the semi-persistent resources, the RN deleting the configuration for the semi-persistent resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the semi-persistent resources, the RN reserving the configuration for the semi-persistent resources.

9. The method according to claim 7, wherein under the circumstance that the RN uses the semi-persistent resources and the RN reserves the multi-subframe scheduling resources, the method further comprises:

on the next backhaul subframe which is located after the backhaul subframe and instructed by a multi-subframe scheduling, the RN using an HARQ process corresponding to the next backhaul subframe, or using an HARQ process corresponding to the backhaul subframe.

10. The method according to claim 1, wherein the step of the RN receiving or sending data by using the dynamic resources or the semi-persistent resources comprises:

the RN receiving or sending the data by using the dynamic resources or the semi-persistent resources with a hybrid automatic repeat request (HARQ) process, wherein the HARQ process comprises;

one of HARQ processes which is instructed by the multi-subframe scheduling, or an HARQ process which is not instructed by the multi-subframe.

11. The method according to claim 1, wherein the multi-subframe scheduling resources refer to resources which are allocated by a base station to the RN to instruct the RN to receive the data on sequential multiple downlink backhaul subframes or send the data on the sequential multiple uplink backhaul subframes.

17. The method according to claim 2, wherein under the circumstance that the RN has acquired the dynamic resources, the method further comprises:

on the backhaul subframe, after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN deleting the configuration for the multi-subframe scheduling resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN reserving the configuration for the multi-subframe scheduling resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the dynamic resources, the RN deleting or reserving the configuration for the multi-subframe scheduling resources.

18. The method according to claim 17, wherein under the circumstance that the RN uses the dynamic resources and the RN reserves the multi-subframe scheduling resources, the method further comprises:

on the next backhaul subframe which is located after the backhaul subframe and instructed by a multi-subframe scheduling, the RN using a hybrid automatic repeat request (HARQ) process corresponding to the next backhaul subframe, or using an HARQ process corresponding to the backhaul subframe.

19. The method according to claim 3, wherein under the circumstance that the RN has acquired the dynamic resources, the method further comprises:

on the backhaul subframe, after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN deleting the configuration for the multi-subframe scheduling resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN reserving the configuration for the multi-subframe scheduling resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the dynamic resources, the RN deleting or reserving the configuration for the multi-subframe scheduling resources.

20. The method according to claim 19, wherein under the circumstance that the RN uses the dynamic resources and the RN reserves the multi-subframe scheduling resources, the method further comprises:

on the next backhaul subframe which is located after the backhaul subframe and instructed by a multi-subframe scheduling, the RN using a hybrid automatic repeat request (HARQ) process corresponding to the next backhaul subframe, or using an HARQ process corresponding to the backhaul subframe.

21. The method according to claim 4, wherein under the circumstance that the RN has acquired the semi-persistent resources, the method further comprises:

on the backhaul subframe, after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN deleting the configuration for the multi-subframe scheduling resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN reserving the configuration for the multi-subframe scheduling resources;

or

on the backhaul subframe, before or after the RN having received or sent the data by using the semi-persistent resources, the RN deleting or reserving the configuration for the multi-subframe scheduling resources.

22. The method according to claim 21, wherein the method further comprises:

on the backhaul subframe, before or after the RN having received or sent the data by using the multi-subframe scheduling resources, the RN deleting or reserving the configuration for the semi-persistent resources;

or

on the backhaul subframe, after the RN having received or sent the data by using the semi-persistent resources, the RN deleting the configuration for the semi-persistent resources;

or on the backhaul subframe, before or after the RN having received or sent the data by using the semi-persistent resources, the RN reserving the configuration for the semi-persistent resources.

23. The method according to claim 21, wherein under the circumstance that the RN uses the semi-persistent resources and the RN reserves the multi-subframe scheduling resources, the method further comprises:

on the next backhaul subframe which is located after the backhaul subframe and instructed by a multi-subframe scheduling, the RN using an HARQ process corresponding to the next backhaul subframe, or using an HARQ process corresponding to the backhaul subframe.

12. An apparatus for processing a data transmission conflict of a relay-node (RN), wherein the RN is configured with multi-subframe scheduling resources on a backhaul subframe, and the apparatus comprises:

an acquisition module, used to acquire dynamic resources or semi-persistent resources on the backhaul subframe;

a first processing module, used to, under the circumstance that the dynamic resources has been acquired on the backhaul subframe, receive or send data by using the multi-subframe scheduling resources or the dynamic resources on the backhaul subframe, or perform no processing; and

a second processing module, used to, under the circumstance that the semi-persistent resources has been acquired on the backhaul subframe, receive or send data by using the multi-subframe scheduling resources or the semi-persistent resources on the backhaul subframe, or perform no processing.

13. The apparatus according to claim 12, wherein under the circumstance of acquiring the dynamic resources, the apparatus further comprises:

a third processing module, used to, after having received or sent the data by using the multi-subframe scheduling resources on the backhaul subframe, delete the configuration for the multi-subframe scheduling resources;

a fourth processing module, used to, before or after having received or sent the data by using the multi-subframe scheduling resources on the backhaul subframe, reserve the configuration for the multi-subframe scheduling resources; and

a fifth processing module, used to, before or after having received or sent the data by using the dynamic resources on the backhaul subframe, delete or reserve the configuration for the multi-subframe scheduling resources.

14. The apparatus according to claim 12, wherein under the circumstance of acquiring the semi-persistent resources, the apparatus further comprises:

a sixth processing module, used to, after having received or sent the data by using the multi-subframe scheduling resources on the backhaul subframe, delete the configuration for the multi-subframe scheduling resources;

a seventh processing module, used to, before or after having received or sent the data by using the multi-subframe scheduling resources on the backhaul subframe, reserve the configuration for the multi-subframe scheduling resources; and

an eighth processing module, used to, before or after having received or sent the data by using the semi-persistent resources on the backhaul subframe, delete or reserve the configuration for the multi-subframe scheduling resources.

15. The apparatus according to claim 14, wherein under the circumstance of acquiring the semi-persistent resources, the apparatus further comprises:

a ninth processing module, used to, before or after having received or sent the data by using the multi-subframe scheduling resources on the backhaul subframe, delete or reserve the configuration for the semi-persistent resources;

a tenth processing module, used to, after having received or sent the data by using the semi-persistent resources on the backhaul subframe, delete the configuration for the semi-persistent resources; and

an eleventh processing module, used to, before or after having received or sent the data by using the semi-persistent resources on the backhaul subframe, reserve the configuration for the semi-persistent resources.

16. A relay-node (RN), wherein the RN is configured with multi-subframe scheduling resources on a backhaul subframe and comprises:

an acquisition module, used to acquire dynamic resources or semi-persistent resources on the backhaul subframe;

a first processing module, used to, under the circumstance that the dynamic resources has been acquired on the backhaul subframe, receive or send data by using the multi-subframe scheduling resources or the dynamic resources on the backhaul subframe, or perform no processing; and

a second processing module, used to, under the circumstance that the semi-persistent resources has been acquired on the backhaul subframe, receive or send data by using the multi-subframe scheduling resources or the semi-persistent resources on the backhaul subframe, or perform no processing.