RESOURCE ALLOCATION METHOD AND APPARATUS FOR RELAY NODE UNDER THE CONDITION OF CARRIER AGGREGATION

• US 20130182635A1
• Filed: 12/01/2012
• Published: 07/18/2013
• Est. Priority Date: 10/15/2010
• Status: Active Grant

• Current Assignee: Datang Mobile Communications Equipment Company Limited (China Information Communication Technology Group Co. Ltd.)
• Original Assignee: Wei Bao, Yali Zhao
• Inventors: Zhao, Yali, Bao, Wei
• Granted Patent: US 9,807,745 B2
• Time in Patent Office: Days
• US Class Current: 370/315
• CPC Class Codes: H04B 7/15507 Relay station based processing for cell extension or control of coverage area, network planning with network coordinated processing with regard to cell extension H04W16/26; network topologies using dedicated repeater stations H04W84/047; terminal devices adapted for relaying to or from an other terminal H04W88/04
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• 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 resource allocation method and apparatus for a relay node under the condition of carrier aggregation are disclosed in the embodiments of the present invention. By applying the technical solution of the embodiments of the present invention, a relay node can determine information of cells, which are currently available for allocation, of a Un interface, and report the information to an eNB, so that the eNB can allocate corresponding Un interface resources for the relay node according to the information. Thus the eNB side can accurately obtain the information of the cell resources, which are available for allocation and currently correspond to the relay node, of the Un interface. Thus the problem is solved that the relay node cannot properly work under the condition of the carrier aggregation caused by the mismatching between the Un interface resources directly allocated by the eNB and the relay node in the prior art.

Claims

1. A resource allocation method of relay node under carrier aggregation scene, wherein, which comprises:

Relay node acquires information of available cell of Un interface;

The relay node determines its relay node type according to information of available cell of the Un interface;

The relay node determines information of the current cell available for allocation of Un interface according to the information of available cell of Un interface and the relay node type;

The relay node sends the determined information of the current cell available for allocation of Un interface to an eNB that the relay node is affiliated to, in order to make the eNB can allocate Un interface resource for the relay node according to information of the current cell available for allocation of Un interface.

2. The method as claimed in claim 1, wherein, the relay node acquires information of the available cell of the Un interface, which is specifically as:

The relay node determines which cells belonging to the eNB that the relay node is affiliated to according to the cell list information downloaded from OAM of the relay node;

When a cell and the cell that the relay node is accessed to are affiliated to the same eNB, the relay node determines the cell as the available cell of its Un interface.

3. The method as claimed in claim 1, wherein, the relay node acquires information of the available cell of the Un interface, which comprises:

The relay node acquires information of the available cell of the Uu interface.

4. The method as claimed in claim 3, wherein, the relay node acquires information of the available cell of the Uu interface, which is specifically as:

The relay node acquires information of the available cell of its Uu interface according to the cell list information of Uu interface downloaded from the OAM of the relay node.

5. The method as claimed in claim 3, wherein, the relay node determines its relay node type according to information of available cell of the Un interface, which is specifically as:

The relay node determines its relay node type according to the information of the available cell of the Un interface, the information of the available cell of the Uu interface and its own software/hardware capacity information.

6. The method as claimed in claim 5, wherein, the relay node determines its relay node type according to information of available cell of the Un interface, which is specifically as:

When the software/hardware capacity information of the relay node only supports resource division, the relay node determines its relay node type as “

Requiring resource division”

;

When the software/hardware capacity information of the relay node only supports “

Not requiring resource division”

, the relay node determines its relay node type as “

Not requiring resource division”

.

When the software/hardware capacity information of the relay node supports the both, and both the cells corresponding to information of the available cell of the Un interface and information of the available cell of the Uu interface cannot meet the requirement of not requiring resource division, the relay node determines its relay node type as “

Requiring resource division”

;

When the software/hardware capacity information of the relay node supports the both, and a part of the cell corresponding to information of the available cell of the Un interface and information of the available cell of the Uu interface can meet the requirement of not requiring resource division, the relay node determines its relay node type as “

Requiring resource division”

or “

Not requiring resource division”

according to its demand;

When the software/hardware capacity information of the relay node supports the both, and both the cells corresponding to information of the available cell of the Un interface and information of the available cell of the Uu interface meet the requirement of not requiring resource division, the relay node determines its relay node type as “

Not requiring resource division”

.

7. The method as claimed in claim 1, wherein, the relay node determines its relay node type according to information of the available cell of the Un interface, which also comprises:

The relay node determines information of the current cell available for allocation of its Uu interface according to the relay node type.

8. The method as claimed in claim 1, wherein, the relay node sends the determined information of the current cell available for allocation of the Un interface to the eNB that the relay node is affiliated to, in order to make the eNB can allocate Un interface resource for the relay node according to information of the current cell available for allocation of Un interface, which is specifically as:

The relay node reports the information of the current cell available for allocation of the Un interface to the eNB that the relay node is affiliated to through the RRC message;

The eNB allocates Un interface resource for the relay node according to information of the current cell available for allocation of the Un interface and the current traffic transmission demand.

9. The method as claimed in claim 8, wherein, the relay node reports the information of the current cell available for allocation of the Un interface to the eNB that the relay node is affiliated to through the RRC message, which also comprises:

The relay node reports its relay node type to the eNB that the relay node is affiliated to through the RRC message.

10. A relay node, wherein, which comprises:

Acquisition module, is used for acquiring information of available cell of Un interface;

Type determination module, is used for determining relay node type according to the information of the available cell of Un interface acquired by the acquisition module;

Information determination module, is used for determining information of the current cell available for allocation of Un interface of the relay node according to the information of the available cell of Un interface acquired by the acquisition module and the relay node type determined by the type determination module;

Sending module, is used for sending the information of the current cell available for allocation of the Un interface determined by the information determination module to the eNB that the relay node is affilicated to in order to make the eNB can allocate Un interface resource for the relay node according to information of the current cell available for allocation of Un interface.

11. The relay node as claimed in claim 10, wherein, the acquisition module is specifically used to:

Determine which cells belonging to the eNB that the relay node is affiliated to, according to the cell list information downloaded from OAM of the relay node;

Determine the cell as the available cell of the Un interface of the relay node when a cell and the cell that the relay node is accessed to are affiliated to the same eNB.

12. The relay node as claimed in claim 10, wherein, the acquisition module is also used to acquire information of the available cell of the Uu interface of the relay node according to the cell list information of the Uu interface downloaded from the OAM of the relay node.

13. The relay node as claimed in claim 12, wherein, the type determination module is specifically used to:

Determine the relay node type according to the information of the available cell of the Un interface, the information of the available cell of the Uu interface and the software/hardware capacity information of the relay node.

14. The relay node as claimed in claim 13, wherein, the type determination module is specifically used to:

Determine the relay node type as “

Requiring resource division”

when the software/hardware capacity information of the relay node only supports resource division;

Determine the relay node type as “

Not requiring resource division”

when the software/hardware capacity information of the relay node only supports “

Not requiring resource division”

;

Determine the relay node type as “

Requiring resource division”

when the software/hardware capacity information of the relay node supports the both and both the cells corresponding to information of the available cell of the Un interface and information of the available cell of the Uu interface cannot meet the requirement of not requiring resource division;

Determine the relay node type as “

Requiring resource division”

or “

Not requiring resource division”

according to demand of the relay node when the software/hardware capacity information of the relay node supports the both and a part of the cell corresponding to information of the available cell of the Un interface and information of the available cell of the Uu interface can meet the requirement of not requiring resource division;

Determine the relay node type as “

Not requiring resource division”

when the software/hardware capacity information of the relay node supports the both and both the cells corresponding to information of the available cell of the Un interface and information of the available cell of the

Uu interface meet the requirement of not requiring resource division.

15. The relay node as claimed in claim 10, wherein, the information determination module is also used to determine information of the current cell available for allocation of the Uu interface of the relay node according to the relay node type determined by the type determination module.

16. The relay node as claimed in claim 10, wherein, the sending module is specifically used to:

Report the information of the current cell available for allocation of the Un interface to the eNB that the relay node is affiliated to through the RRC message, so that the eNB can allocate Un interface resource for the relay node according to the information of the current cell available for allocation of the Un interface and the current traffic transmission demand.

17. The relay node as claimed in claim 16, wherein, the sending module is also used to:

Report the relay node type to the eNB that the relay node is affiliated to through the RRC message.

18. A resource allocation method of relay node under carrier aggregation scene, wherein, which comprises:

The eNB receives information of the current cell available for allocation of the Un interface sent by the relay node;

The eNB allocates resource of Un interface for the relay node according to the information of the current cell available for allocation of the Un interface.

19. The method as claimed in claim 18, wherein, the eNB receives information of the current cell available for allocation of the Un interface sent by the relay node, which is specifically as:

The eNB receives information of the current cell available for allocation of the Un interface sent by the relay node through the RRC message.

20-40. -40. (canceled)