DATA TRANSMISSION AND ASSOCIATION METHOD IN A NON-TRANSPARENT CENTRALIZED SCHEDULING MULTI-HOP RELAY NETWORK

• US 20100309858A1
• Filed: 07/16/2008
• Published: 12/09/2010
• Est. Priority Date: 01/11/2008
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Qu, Hongyun, Chen, Yuqin
• Granted Patent: US 8,787,270 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

A data transmission and association method in a non-transparent centralized scheduling multi-hop relay network includes: when a base station sends data, an Allocation Reference Information Element (IE) will be filled in a mapping message (MAP), for indicating a position of a media access control protocol data unit (MAC PDU) to be transmitted; after a lower relay station receiving the mapping message (MAP) sent by the base station or transmitted by other relay station, the MAC PDU which is obtained according to the indication of the Allocation Reference IE is recombined, and then is put in the bandwidth allocated by the base station and sent downwardly.

Claims

1. A data transmission method in a non-transparent centralized scheduling multi-hop relay network, comprising,

when a base station (BS) sends data, an Allocation Reference IE being filled in a mapping message (MAP), for indicating a position of a media access control protocol data unit (MAC PDU) to be sent;

and

after a lower relay station (RS) receives the MAP sent by the BS or forwarded by other RS, the lower RS obtaining the MAC PDU according to an indication of the Allocation Reference IE in the MAP, recombining the obtained MAC PDU, then putting it into a bandwidth allocated by the BS and sending it downwardly.

2. The method according to claim 1, wherein,

the Allocation Reference IE includes a DL Allocation Reference IE;

and

the Allocation Reference IE is before or behind a DL-MAP IE in an RS_Access MAP;

after an RS receives the DL Allocation Reference IE, the MAC PDUs indicated by the DL Allocation Reference IE will be recombined, then be put into a downlink bandwidth indicated by the DL-MAP IE and be sent to a terminal;

or, the Allocation Reference IE is before or behind an R-DL-MAP IE in an RS_RLY MAP;

after the RS receives the DL Allocation Reference IE, the MAC PDUs indicated by the DL Allocation Reference IE will be recombined, then be put into a downlink bandwidth indicated by the R-DL-MAP IE and be sent to the lower RS.

3. The method according to claim 2, wherein,

when the Allocation Reference IE is in the RS_Access MAP message, the DL Allocation Reference IE is before or behind the DL MAP IE of all or some of the following messages:

an RS DL MAP, a Compressed DL MAP and an SUB-DL-UL-MAP.

4. The method according to claim 2, wherein, the DL Allocation Reference IE contains Num_Connections and a CID:

the Num-Connections is for indicating the number of connections from which the MAC PDUs to be sent come; and

the CID is for indicating a connection identifier of a connection from which the MAC PDU to be sent comes.

5. The method according to claim 4, wherein, the DL Allocation Reference IE also contains Num_Received Frames and Received Frame Index:

the Num_Received Frames is for indicating the number of data frames from which the MAC PDUs transmitted in the corresponding bandwidth and on the corresponding connections come; and

the Received Frame Index is for indicating a frame number of a data frame from which the MAC PDU transmitted in the corresponding bandwidth and on the corresponding connection comes.

6. The method according to claim 4, wherein, the DL Allocation Reference IE also contains Num_MAC PDUs, the Num_MAC PDUs is for indicating the number of the MAC PDUs which are transmitted in the corresponding bandwidth, are on the corresponding connections and come from the corresponding frames.

7. The method according to claim 2, wherein,

before the RS starts downlink transmission, the DL Allocation Reference IE sent to the RS will be removed first.

8. The method according to claim 1, wherein,

the method is applicable to a CID-based data transmission mode.

9. The method according to claim 2, wherein,

after the RS receives the DL Allocation Reference IE, if the MAC PDU to which the DL Allocation Reference IE corresponds fails to be found, no downlink data transmission will be performed.

10. The method according to claim 1, wherein, the recombination refers to one of the following operations:

the RS puts the MAC PDUs into a burst indicated by the IE;

a burst is formed after the RS demodulates and decodes the MAC PDUs and then recodes and remodulates them; and

a burst is formed after the RS segments and/or packs the MAC PDUs.

21. The method according to claim 5, wherein, the DL Allocation Reference IE also contains Num_MAC PDUs, the Num_MAC PDUs is for indicating the number of the MAC PDUs which are transmitted in the corresponding bandwidth, are on the corresponding connections and come from the corresponding frames.

22. The method according to claim 2, wherein,

the method is applicable to a CID-based data transmission mode.

23. The method according to claim 3, wherein,

the method is applicable to a CID-based data transmission mode.

24. The method according to claim 4, wherein,

the method is applicable to a CID-based data transmission mode.

25. The method according to claim 5, wherein,

the method is applicable to a CID-based data transmission mode.

26. The method according to claim 2, wherein, the recombination refers to one of the following operations:

the RS puts the MAC PDUs into a burst indicated by the IE;

a burst is formed after the RS demodulates and decodes the MAC PDUs and then recodes and remodulates them; and

a burst is formed after the RS segments and/or packs the MAC PDUs.

11. A method for associating a MAP with corresponding data in a multi-hop relay network, comprising:

an Allocation Reference IE being added in a MAP, for indicating a position of an MAC PDU to be sent;

after an RS receives the MAP sent by a BS or forwarded by other RS, the RS obtaining the MAC PDU indicated by the Allocation Reference IE, recombining the MAC PDU and putting it into a bandwidth allocated by the BS to send.

12. The method according to claim 11, wherein, the method further comprises:

the Allocation Reference IE includes a DL Allocation Reference IE; and

the DL Allocation Reference IE is before or behind a DL-MAP IE in an RS_Access MAP;

after the RS receives the DL Allocation Reference IE, the MAC PDUs indicated by the RS will be recombined, then be put into a downlink bandwidth indicated by the DL-MAP IE and be sent to a terminal;

or, the DL Allocation Reference IE is before or behind an R-DL-MAP IE in an RS_RLY MAP;

after the RS receives the DL Allocation Reference IE, the MAC PDUs indicated by the RS will be recombined, then be put into a downlink bandwidth indicated by the R-DL-MAP IE and be sent to a lower RS.

13. The method according to claim 12, wherein,

when the Allocation Reference IE is in the RS_Access MAP, the DL Allocation Reference IE is before or behind the DL MAP IE in all or some of the following messages:

an RS DL MAP, a Compressed DL MAP, an SUB-DL-UL-MAP and an HARQ MAP.

14. The method according to claim 12, wherein, the method further comprises:

the Allocation Reference IE also includes a UL Allocation Reference IE;

the UL Allocation Reference IE exists in the RS_RLY_MAP message and is before or after an R-UL-MAP IE; and

after the RS receives the UL Allocation Reference IE, the MAC PDUs indicated by the RS will be recombined, then be put into an uplink bandwidth indicated by the R-UL-MAP IE and be sent to the BS or an upper RS.

15. The method according to claim 12, wherein, the Allocation Reference IE contains Num_Connections and a CID:

the Num-Connections is for indicating the number of connections from which the MAC PDUs to be sent come;

the CID is for indicating a connection identifier of a connection from which the MAC PDU to be sent comes.

16. The method according to claim 15, wherein, the Allocation Reference IE also contains Num_Received Frames and Received Frame Index:

the Num_Received Frames is for indicating the number of data frames from which the MAC PDUs transmitted in the corresponding bandwidth and on the corresponding connections come; and

the Received Frame Index is for indicating a frame number of a data frame from which the MAC PDU transmitted in the corresponding bandwidth and on the corresponding connection comes.

17. The method according to claim 16, wherein, the Allocation Reference IE also contains Num_MAC PDUs, the Num_MAC PDUs is for indicating the number of MAC PDUs which are transmitted in the corresponding bandwidth, are on the corresponding connections and come from the corresponding frames.

18. The method according to claim 12, wherein,

before the RS starts downlink transmission, the DL Allocation Reference IE sent to the RS will be removed first.

19. The method according to claim 11, wherein,

the method is applicable to a non-transparent centralized scheduling multi-hop relay network in a CID-based data transmission mode.

20. The method according to claim 11, wherein, the recombination refers to one of the following operations:

the RS puts the MAC PDUs into a burst indicated by the IE;

a burst is formed after the RS demodulates and decodes the MAC PDUs and then recodes and remodulates them; and

a burst is formed after the RS segments and/or packs the MAC PDUs.

27. The method according to claim 13, wherein, the Allocation Reference IE contains Num_Connections and a CID:

the Num-Connections is for indicating the number of connections from which the MAC PDUs to be sent come;

the CID is for indicating a connection identifier of a connection from which the MAC PDU to be sent comes.

28. The method according to claim 14, wherein, the Allocation Reference IE contains Num_Connections and a CID:

the Num-Connections is for indicating the number of connections from which the MAC PDUs to be sent come;

the CID is for indicating a connection identifier of a connection from which the MAC PDU to be sent comes.

29. The method according to claim 27, wherein, the Allocation Reference IE also contains Num_Received Frames and Received Frame Index:

the Num_Received Frames is for indicating the number of data frames from which the MAC PDUs transmitted in the corresponding bandwidth and on the corresponding connections come; and

the Received Frame Index is for indicating a frame number of a data frame from which the MAC PDU transmitted in the corresponding bandwidth and on the corresponding connection comes.

30. The method according to claim 28, wherein, the Allocation Reference IE also contains Num_Received Frames and Received Frame Index:

the Num_Received Frames is for indicating the number of data frames from which the MAC PDUs transmitted in the corresponding bandwidth and on the corresponding connections come; and

the Received Frame Index is for indicating a frame number of a data frame from which the MAC PDU transmitted in the corresponding bandwidth and on the corresponding connection comes.

31. The method according to claim 29, wherein, the Allocation Reference IE also contains Num_MAC PDUs, the Num_MAC PDUs is for indicating the number of MAC PDUs which are transmitted in the corresponding bandwidth, are on the corresponding connections and come from the corresponding frames.

32. The method according to claim 30, wherein, the Allocation Reference IE also contains Num_MAC PDUs, the Num_MAC PDUs is for indicating the number of MAC PDUs which are transmitted in the corresponding bandwidth, are on the corresponding connections and come from the corresponding frames.

33. The method according to claim 12, wherein,

the method is applicable to a non-transparent centralized scheduling multi-hop relay network in a CID-based data transmission mode.

34. The method according to claim 13, wherein,

the method is applicable to a non-transparent centralized scheduling multi-hop relay network in a CID-based data transmission mode.

35. The method according to claim 14, wherein,

the method is applicable to a non-transparent centralized scheduling multi-hop relay network in a CID-based data transmission mode.

36. The method according to claim 12, wherein, the recombination refers to one of the following operations:

the RS puts the MAC PDUs into a burst indicated by the IE;

a burst is formed after the RS demodulates and decodes the MAC PDUs and then recodes and remodulates them; and

a burst is formed after the RS segments and/or packs the MAC PDUs.

37. The method according to claim 13, wherein, the recombination refers to one of the following operations:

the RS puts the MAC PDUs into a burst indicated by the IE;

a burst is formed after the RS demodulates and decodes the MAC PDUs and then recodes and remodulates them; and

a burst is formed after the RS segments and/or packs the MAC PDUs.

38. The method according to claim 14, wherein, the recombination refers to one of the following operations:

the RS puts the MAC PDUs into a burst indicated by the IE;

a burst is formed after the RS demodulates and decodes the MAC PDUs and then recodes and remodulates them; and

a burst is formed after the RS segments and/or packs the MAC PDUs.