Data sending method, data receiving method, base station and user equipment

• US 9,936,491 B2
• Filed: 07/21/2014
• Issued: 04/03/2018
• Est. Priority Date: 01/21/2012
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Lv, Yongxia, Zhang, Wen, Li, Yue
• Primary Examiner(s): Ebrahim, Anez
• Application Number:
  US14/336,636
• Publication Number:
  US 20140348089A1
• Time in Patent Office: 1,352 Days
• CPC Class Codes: H04L 5/0012 Hopping in multicarrier systems for frequency hopping in spread spectrum systems H04B1/713
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal

Abstract

Embodiments of the present invention provide a data sending method. The data sending method includes: determining, according to location generation information of a PDCCH on a non-legacy resource, a resource location, on a subframe, of the PDCCH on the non-legacy resource; and sending the subframe to a UE, where the PDCCH on the non-legacy resource is contained on the resource location of the subframe, so that the UE determines the resource location, on the subframe, of the PDCCH on the non-legacy resource according to the location generation information. In the embodiments of the present invention, both the base station and the UE may determine a resource location of the PDCCH on the non-legacy resource separately by using the location generation information, thereby avoiding a circumstance that the UE equipped with only the capability of receiving a PDCCH on a non-legacy resource cannot access a network.

Claims

1. A data sending method comprising:

sending, by a base station, a medium access control protocol data unit (MAC PDU), wherein the MAC PDU comprises a resource location information of a physical downlink control channel (PDCCH) on a next non-legacy resource;

determining, by the base station, to dynamically schedule the PDCCH on a subframe, wherein the base station determines, according to the resource location information of the PDCCH on the next non-legacy resource, information of resource location, on the subframe, of the PDCCH on the next non-legacy resource; and

sending, by the base station, the subframe to a user equipment (UE), wherein the subframe contains the PDCCH on the non-legacy resource,

wherein a sub-header in a MAC header of the MAC PDU includes a random access preamble identifier (RAPID) domain indicating a special random access sequence.

2. The method according to claim 1, wherein the MAC PDU further comprises a function of a temporary cell-radio network temporary identifier (TC-RNTI).

3. The method according to claim 1, wherein a vacant bit of the MAC PDU is used to indicate the resource location of the PDCCH on the next non-legacy resource.

4. The method according to claim 3, wherein the correspondence between the vacant bit and the two preset resource locations of the PDCCH on the non-legacy resource is preset by the system.

5. The method according to claim 1, wherein the MAC PDU corresponding to the sub-header contains the resource location information of the PDCCH on the next non-legacy resource.

6. The method according to claim 5, wherein the special random access sequence is notified through a broadcast message or preset by the system.

7. The method according to claim 1, wherein the resource location information of the PDCCH on the next non-legacy resource is placed at the MAC PDU.

8. The method according to claim 1, wherein a correspondence exists between the resource location information of the PDCCH on the next non-legacy resource and the function of the TC-RNTI in the sent MAC RAR, and the correspondence is preset by the system.

9. The method according to claim 1, wherein the MAC PDU is a MAC PDU of a random access response (RAR).

10. A data receiving method comprising:

receiving, by a user equipment (UE) a medium access control protocol data unit (MAC PDU), wherein the MAC PDU comprises resource location information of a physical downlink control channel (PDCCH) on a next non-legacy resource;

receiving, by the UE, a subframe, wherein the subframe contains the PDCCH on the non-legacy resource, wherein the PDCCH is dynamically scheduled on the subframe according to the resource location information of the PDCCH on the next non-legacy resource; and

determining, by the UE, according to the information of resource location, a resource location on the subframe of the PDCCH on the non-legacy resource,

wherein a sub-header in a MAC header of the MAC PDU includes a random access preamble identifier (RAPID) domain indicating a special random access sequence.

11. The method according to claim 10, wherein the resource location information of the PDCCH on the next non-legacy resource is a function of a TC-RNTI in the received MAC PDU.

12. The method according to claim 10, wherein a vacant bit in the received MAC PDU indicates the resource location of the PDCCH on the next non-legacy resource.

13. The method according to claim 10, wherein a correspondence between the vacant bit and the two preset resource locations of the PDCCH on the non-legacy resource is preset by a system.

14. The method according to claim 10, wherein the MAC PDU corresponding to the sub-header contains the resource location information of the PDCCH on the next non-legacy resource.

15. The method according to claim 14, wherein the special random access sequence is obtained by a receiving broadcast message or presetting by the system.

16. The method according to claim 10, wherein the resource location information of the PDCCH on the next non-legacy resource is received at presetting location of the MAC PDU.

17. The method according to claim 10, wherein a correspondence exists between the resource location information of the PDCCH on the next non-legacy resource and the function of the TC-RNTI in the receiving MAC PDU, and the correspondence is preset by the system.

18. The method according to claim 10, wherein the MAC PDU is a MAC PDU of a random access response (RAR).

19. A data sending apparatus comprising:

a transmitter configured to send a medium access control protocol data unit (MAC PDU) wherein the MAC PDU comprises resource location information of a physical downlink control channel (PDCCH) on a next non-legacy resource;

a processor configured to determine to dynamically schedule the PDCCH on a subframe, wherein the processor determines information of resource location, on the subframe, of the PDCCH on the next non-legacy resource, according to the resource location information of the PDCCH on the next non-legacy resource; and

the transmitter configured to send the subframe to a user equipment (UE), wherein the subframe contains the PDCCH on the non-legacy resource,

wherein a sub-header in a MAC header of the MAC PDU includes a random access preamble identifier (RAPID) domain indicating a special random access sequence.

20. The data sending apparatus according to claim 19, wherein the MAC PDU further comprises a function of a temporary cell-radio network temporary identifier (TC-RNTI).

21. The data sending apparatus according to claim 19, wherein a vacant bit of the MAC PDU is used to indicate the resource location of the PDCCH on the next non-legacy resource.

22. The data sending apparatus according to claim 19, wherein the correspondence between the vacant bit and the two preset resource locations of the PDCCH on the non-legacy resource is preset by the system.

23. The data sending apparatus according to claim 22, wherein the MAC PDU corresponding to the sub-header contains the resource location information of the PDCCH on the next non-legacy resource.

24. The data sending apparatus according to claim 23, wherein the special random access sequence is notified through a broadcast message or preset by the system.

25. The data sending apparatus according to claim 19, wherein the resource location information of the PDCCH on the next non-legacy resource is placed at the MAC PDU.

26. The data sending apparatus according to claim 25, wherein a correspondence exists between the resource location information of the PDCCH on the next non-legacy resource and the function of the TC-RNTI in the sent MAC RAR, and the correspondence is preset by the system.

27. The data sending apparatus according to claim 19, wherein the MAC PDU is a MAC PDU of a random access response (RAR).

28. A data receiving apparatus comprising:

a receiver configured to receive a medium access control protocol data unit (MAC PDU), wherein the MAC PDU comprises resource location information of a physical downlink control channel (PDCCH) on a next non-legacy resource;

the receiver configured to receive a subframe, wherein the subframe contains the PDCCH on the non-legacy resource, wherein the PDCCH is dynamically scheduled on the subframe according to the resource location information of the PDCCH on the next non-legacy resource; and

a processor configured to determine a resource location on the subframe of the PDCCH on the non-legacy resource, according to the information of resource location,

wherein a sub-header in a MAC header of the MAC PDU includes a random access preamble identifier (RAPID) domain indicating a special random access sequence.

29. The data receiving apparatus according to claim 28, wherein the resource location information of the PDCCH on the next non-legacy resource is a function of a TC-RNTI in the received MAC PDU.

30. The data receiving apparatus according to claim 28, wherein a vacant bit in the received MAC PDU indicates the resource location of the PDCCH on the next non-legacy resource.

31. The data receiving apparatus according to claim 30, wherein a correspondence between the vacant bit and the two preset resource locations of the PDCCH on the non-legacy resource is preset by a system.

32. The data receiving apparatus according to claim 28, wherein the MAC PDU corresponding to the sub-header contains the resource location information of the PDCCH on the next non-legacy resource.

33. The data receiving apparatus according to claim 32, wherein the special random access sequence is obtained by a receiving broadcast message or presetting by the system.

34. The data receiving apparatus according to claim 28, wherein the resource location information of the PDCCH on the next non-legacy resource is received at presetting location of the MAC PDU.

35. The data receiving apparatus according to claim 28, wherein a correspondence exists between the resource location information of the PDCCH on the next non-legacy resource and the function of the TC-RNTI in the receiving MAC PDU, and the correspondence is preset by the system.

36. The data receiving apparatus according to claim 28, wherein the MAC PDU is a MAC PDU of a random access response (RAR).

37. A non-transitory computer readable medium for sending data, the non-transitory computer readable medium containing program instructions that causes a processor in a base station to perform the method comprising:

sending a medium access control protocol data unit (MAC PDU), wherein the MAC PDU comprises resource location information of a physical downlink control channel (PDCCH) on a next non-legacy resource;

determining to dynamically schedule the PDCCH on a subframe, wherein the processor determines, according to the resource location information of the PDCCH on the next non-legacy resource, information of resource location, on the subframe, of the PDCCH on the next non-legacy resource; and

sending the subframe to a user equipment (UE), wherein the subframe contains the PDCCH on the non-legacy resource,

wherein a sub-header in a MAC header of the MAC PDU includes a random access preamble identifier (RAPID) domain indicating a special random access sequence.

38. The non-transitory computer readable medium of claim 37, wherein the MAC PDU corresponding to the sub-header contains the resource location information of the PDCCH on the next non-legacy resource.

39. A non-transitory computer readable medium for receiving data, the non-transitory computer readable medium containing program instructions that causes a processor in a user equipment to perform the method comprising:

receiving a medium access control protocol data unit (MAC PDU), wherein the MAC PDU comprises resource location information of a physical downlink control channel (PDCCH) on a next non-legacy resource;

receiving a subframe, wherein the subframe contains the PDCCH on the non-legacy resource, wherein the PDCCH is dynamically scheduled on the subframe according to the resource location information of the PDCCH on the next non-legacy resource; and

determining according to the information of resource location, a resource location on the subframe of the PDCCH on the non-legacy resource,

wherein a sub-header in a MAC header of the MAC PDU includes a random access preamble identifier (RAPID) domain indicating a special random access sequence.

40. The non-transitory computer readable medium of claim 39, wherein the MAC PDU corresponding to the sub-header contains the resource location information of the PDCCH on the next non-legacy resource.