Method for resource assignment, base station and terminal equipment

Patent metadata

Field	Value
Publication number	US-9398589-B2
Application number	US-201414175558-A
Country	US
Kind code	B2
Filing date	Feb 7, 2014
Priority date	Aug 16, 2011
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

A method for resource assignment, base station and terminal equipment. The method includes: determining resource block group sizes or numbers of resource block subsets to which a stand-alone carrier and a carrier segment correspond; and assigning a resource to terminal equipment according to the resource block group sizes or the numbers of the resource block subsets. With this method, waste of RBs in the resource assignment type 0 may be avoided on the one hand, and on the other hand, a solution for resource assignment of the resource assignment type 1 is provided.

First claim

What is claimed is:

1. A method for encoding a resource allocation result having a standalone carrier and one or more configured carrier segments, the method being performed by a base station in a communication system communicatively connected with at least one terminal equipment, the method comprising:
determining resource block group sizes or numbers of resource block subsets according to a system bandwidth; and
encoding the resource allocation result for the stand-alone carrier and the one or more configured carrier segments into an indication information for transmission to the terminal equipment;
wherein the system bandwidth is one of:
the sum of the bandwidth of the standalone carrier and the bandwidth of all the one or more configured carrier segments; and
the bandwidth of the standalone carrier; and

wherein the indication information is configured to either:
respectively indicate the resource allocation result for the stand-alone carrier and the resource allocation result for the one or more configured carrier segments; or
integrally indicate the resource allocation result for the stand-alone carrier and the resource allocation result for the configured carrier segments.

2. The method according to claim 1 , wherein the method further comprises:
encoding indication information including a resource allocation result in a predetermined indication information format; and
informing the encoded indication information to the terminal equipment.

3. The method according to claim 2 , wherein when determining the resource block group sizes or the numbers of the resource block subsets to which the stand-alone carrier and the carrier segment correspond according to the bandwidth of the stand-alone carrier and the carrier segment and corresponding relationship between a bandwidth and a resource block group size, the predetermined indication information format is a first indication information format respectively indicating resource allocation result for the stand-alone carrier and resource allocation result for the one or more configured carrier segments.

4. The method according to claim 3 , wherein when the first indication information format is used, a resource allocation type is resource allocation type 0, the number of the carrier segment is 1 or more, and the indication information includes the resource allocation type, information on whether each resource block group of 1 or more stand-alone carriers is assigned to the terminal equipment and information on whether each resource block group of the carrier segment is assigned to the terminal equipment; and
wherein the number of the resource allocation type is 1 or more, and the resource allocation types are identical or different.

5. The method according to claim 3 , wherein when the first indication information format is used, the type of the resource allocation is resource allocation type 1, and the indication information includes a resource allocation type, identification of a resource block subset of the stand-alone carrier and a resource block subset of the carrier segment, indication identification of the bit for resource allocation starting from the left side or the right side of a resource block subset, information on whether a corresponding resource block in the resource block subset of the stand-alone carrier is assigned to the terminal equipment and information on whether a corresponding resource block in the resource block subset of the carrier segment is assigned to the terminal equipment.

6. The method according to claim 5 , wherein the indication identification of the bit for resource allocation starting from the left side or the right side of the resource block subset comprises indication identification of the bit for resource allocation of the stand-alone carrier starting from the left side or the right side of the resource block subset and indication identification of the bit for resource allocation of the carrier segment starting from the left side or the right side of the resource block subset.

7. The method according to claim 5 , wherein,
the information on whether a corresponding resource block in the resource block subset of the stand-alone carrier is assigned to the terminal equipment and the information on whether a corresponding resource block in the resource block subset of the carrier segment is assigned to the terminal equipment are expressed in a manner of bit mapping of resource allocation;
the number of the carrier segment is n, and when the indication information of the resource allocation type 0 includes 1 resource allocation type, information on whether each resource block group of the stand-alone carrier is assigned to the terminal equipment and information on whether each resource block group of the carrier segment is assigned to the terminal equipment, the numbers of bit for bit mapping of resource allocation of the stand-alone carrier and n carrier segment are calculated by using the following formulae:
┌N RB DL /P┐−┌ log 2 (P)┐ and ┌N RBk DL /P k ┐−┌ log 2 (P k )┐−1;

wherein when the number of bit for bit mapping of resource allocation of a carrier k is ┌N RBk DL /P k ┐−┌ log 2 (P k )┐−1, the number of bit for bit mapping of resource allocation of the rest carrier is ┌N RB DL /P┐−┌ log 2 (P)┐;
where, the carrier k is one of the stand-alone carrier and n carrier segment, N RBk DL k is the bandwidth of the carrier k, P k is the resource block group size or the number of the resource block subset of the carrier k, N RB DL is the bandwidth of the rest carrier, P is the resource block group size or the number of the resource block subset of the rest carrier, and n is a positive integer.

8. The method according to claim 5 , wherein the information on whether a corresponding resource block in the resource block subset of the stand-alone carrier is assigned to the terminal equipment and the information on whether a corresponding resource block in the resource block subset of the carrier segment is assigned to the terminal equipment are expressed in a manner of bit mapping of resource allocation;
the number of the carrier segment is n, and when the indication information of the resource allocation type 0 includes a first resource allocation type and information on whether each resource block group of the stand-alone carrier is assigned to the terminal equipment as well as n second resource allocation type and information on whether each resource block group of corresponding n carrier segment is assigned to the terminal equipment, the values of the number of bit for bit mapping of resource allocation of the stand-alone carrier and n carrier segment are taken by using the following formula:
┌N RB DL /P┐−┌ log 2 (P)┐

where, N RB DL is the bandwidth of the corresponding carrier, and P is the resource block group size or the number of the resource block subset of the corresponding carrier.

9. The method according to claim 2 , wherein when determining the resource block group sizes to which the stand-alone carrier and the carrier segment correspond, or the numbers of the resource block subsets, to which the stand-alone carrier and the carrier segment correspond according to the bandwidth of the stand-alone carrier and corresponding relationship between a bandwidth and a resource block group size, the predetermined indication information format is a second indication information format integrally indicating the resource allocation result for the stand-alone carrier and the resource allocation result for the one or more configured carrier segments.

10. The method according to claim 9 , wherein when the second indication information format is used, a resource allocation type is resource allocation type 0, an

Assignees

• Fujitsu Ltd

Inventors

• Xu Haibo
• Lu Yanling
• Zhang Yuantao
• Wang Yi

Classifications

• H04L5/001

  the frequencies being arranged in component carriers · CPC title

• H04L1/0038

  Blind format detection (for detection of modulation format H04L27/0012) · CPC title

• H04W72/0453 Primary

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title