RESOURCE ALLOCATION METHOD AND APPARATUS

• US 20130128852A1
• Filed: 01/23/2013
• Published: 05/23/2013
• Est. Priority Date: 07/23/2010
• 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: XUE, Lixia, BERGGREN, Fredrik
• Granted Patent: US 9,179,441 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 27/0008 arrangements for allowing a transmitter or receiver to use more than one type of modulation negotiating modulation type for two-way transmission paths H04L5/1453
• 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: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/52 based on load

Abstract

The present invention discloses a resource allocation method and apparatus, wherein the method comprises: determining a first resource block group size corresponding to a first resource allocation type in the common resource area; and dividing all resource blocks in the common resource area of the carrier into one or more resource block groups; determining a second resource block group size corresponding to the first resource allocation type in the dedicated resource area; and according to the second resource block group size, dividing resource blocks in the dedicated resource area of the carrier into one or more resource block groups.

Claims

1. A resource allocation method, comprising:

according to the number of resource blocks in a common resource area of a carrier and a set first corresponding relationship, determining a first resource block group size corresponding to a first resource allocation type in the common resource area, wherein the first corresponding relationship is corresponding relationship between the number of resource blocks and a resource block group size, and according to the first resource block group size, dividing all resource blocks in the common resource area of the carrier into one or more resource block groups, wherein the carrier including comprises the common resource area and a dedicated resource area;

according to the first resource block group size, or according to the total number of resource blocks of the carrier and the first corresponding relationship, determining a second resource block group size corresponding to the first resource allocation type in the dedicated resource area, and according to the second resource block group size, dividing resource blocks in the dedicated resource area of the carrier into one or more resource block groups, wherein each one of the one or more resource block groups divided from in the dedicated resource area corresponds to an indication for indicating whether or not the resource block group is to be scheduled to a user equipment, and sending the indication to the user equipment.

2. The method of claim 1, wherein according to the first resource block group size, determining the second resource block group size corresponding to the first resource allocation type in the dedicated resource area comprises:

according to the number of resource blocks in the common resource area and the first resource block group size, determining the number of resource block groups in the common resource area, and according to the number of resource block groups in the common resource area, determining the first number of bits of a resource allocation field for the common resource area;

according to the first number of bits, determining the second number of bits of a resource allocation field for the dedicated resource area; and

according to the number of resource blocks in the dedicated resource area and the second number of bits, determining the second resource block group size.

3. The method of claim 2, wherein according to the first number of bits, determining the second number of bits of the resource allocation field for the dedicated resource area comprises:

according to the maximum number of bits of a resource allocation field corresponding to the carrier, or according to the total number of resource blocks included in the carrier and the first corresponding relationship, determining the total number of bits of the resource allocation field corresponding to the carrier; and

according to the total number of bits of the resource allocation field and the first number of bits, determining the second number of bits.

4. The method of claim 2, wherein according to the number of resource blocks in the dedicated resource area and the second number of bits, determining the second resource block group size comprises:

if the number of resource blocks of the last resource block group in the common resource area is equal to the first resource block group size, obtaining a first ratio by rounding up a quotient obtained by dividing the number of resource blocks in the dedicated resource area by the second number of bits; and

if the first ratio is a positive integral multiple of the first resource block group size, determining the first ratio as the second resource block group size, or, if the first ratio is not a positive integral multiple of the first resource block group size, determining a minimum integer larger than the first ratio and equal to a positive integral multiple of the first resource block group size as the second resource block group size;

or,

if the number of resource blocks of the last resource block group in the common resource area is less than the first resource block group size, adding the number of resource blocks in the dedicated resource area and the number of resource blocks of the last resource block group in the common resource area, thereby obtaining a first total, and obtaining a first ratio by rounding up a quotient obtained by dividing the first total by the second number of bits; and

if the first ratio is a positive integral multiple of the first resource block group size, determining the first ratio as the second resource block group size, or, if the first ratio is not a positive integral multiple of the first resource block group size, determining a minimum integer larger than the first ratio and equal to a positive integral multiple of the first resource block group size as the second resource block group size;

or,

if the number of resource blocks of the last resource block group in the common resource area is less than the first resource block group size, obtaining a first ratio by rounding up a quotient obtained by dividing the number of resource blocks in the dedicated resource area by the second number of bits; and

if the first ratio is a positive integral multiple of the first resource block group size, determining the first ratio as the second resource block group size, or, if the first ratio is not a positive integral multiple of the first resource block group size, determining a minimum integer larger than the first ratio and equal to a positive integral multiple of the first resource block group size as the second resource block group size.

5. The method of claim 4, further comprising:

if the second resource block group size is larger than a set value, replacing the second resource block group size with the set value.

6. The method of claim 1, wherein after determining the second resource block group size corresponding to the first resource allocation type in the dedicated resource area according to the total number of resource blocks of the carrier and the first corresponding relationship, the method further comprises:

according to the number of resource blocks in the dedicated resource area and the second resource block group size, determining the number of resource block groups in the dedicated resource area, and according to the number of resource block groups in the dedicated resource area, determining the second number of bits of the resource allocation field for the dedicated resource area.

7. The method of claim 1, wherein according to the second resource block group size, dividing resource blocks in the dedicated resource area of the carrier into one or more resource block groups comprises:

if the number of resource blocks of the last resource block group in the common resource area is less than the first resource block group size, calculating a difference between the second resource block group size and the number of resource blocks of the last resource block group in the common resource area as a first difference;

grouping the resource blocks of the last resource block group in the common resource area and resource blocks of a number equal to the first difference in the dedicated resource area that are adjacent to the common resource area in serial number into the first resource block group of resource blocks in the dedicated resource area, or, grouping resource blocks of a number equal to the first difference in the dedicated resource area that are adjacent to the common resource area in serial number into the first resource block group of resource blocks in the dedicated resource area; and

dividing resource blocks remaining in the dedicated resource area after removing the first resource block group into one or more resource block groups according to the second resource block group size.

8. A resource allocation method, comprising:

according to the number of resource blocks in a common resource area of a carrier and a set second corresponding relationship, or according to a first resource block group size of a first resource allocation type, determining the number of resource block group subsets corresponding to a second resource allocation type in the common resource area of the carrier, wherein the carrier includes the common resource area and a dedicated resource area, and the second corresponding relationship is a corresponding relationship between the number of resource blocks and the number of resource block group subsets, and allocating resource block groups of the carrier into the resource block group subsets;

determining the total number of bits of a resource allocation field corresponding to the second resource allocation type; and

according to the total number of bits of the resource allocation field corresponding to the second resource allocation type, the number of bits required for indicating the resource block group subsets, and the number of bits required for indicating a resource allocation direction, determining the number of bits indicating resource allocation of the resource block group subsets of the second resource allocation type, according to the number of bits indicating the resource allocation of the resource block group subsets, determining an indication that indicates whether or not a resource block in each resource block group subset is to be scheduled to a user equipment; and

sending the indication to the user equipment.

9. The method of claim 8, wherein according to the first resource block group size of the first resource allocation type, determining the number of the resource block group subsets corresponding to the second resource allocation type in the common resource area of the carrier comprises:

determining the number of resource block group subsets corresponding to the second resource allocation type in the common resource area of the carrier, which is equal to the first resource block group size corresponding to the first resource allocation type in the common resource area.

10. The method of claim 8, further comprising:

determining the resource block group size of the second resource allocation type corresponding to the carrier in the dedicated resource area and the resource block group size of the second resource allocation type corresponding to the carrier in the common resource area.

11. The method of claim 8, wherein determining the total number of bits of the resource allocation field corresponding to the second resource allocation type comprises:

according to the total number of resource blocks included in the carrier and the second corresponding relationship, determining the total number of bits of the resource allocation field of the second resource allocation type corresponding to the carrier;

or

determining the total number of bits of the resource allocation field corresponding to the second resource allocation type, which is equal to the total number of bits of the resource allocation field corresponding to the first resource allocation type.

12. The method of claim 8, wherein according to the total number of bits of the resource allocation field corresponding to the second resource allocation type, the number of bits required for indicating the resource block group subsets, and the number of bits required for indicating the resource allocation direction, determining the number of bits indicating resource allocation of the resource block group subsets of the second resource allocation type comprises:

determining the number of bits indicating resource allocation of the resource block group subsets of the second resource allocation type, which is equal to a difference obtained by subtracting the number of bits required for indicating the resource block subsets and the number of bits required for indicating the resource allocation direction from the total number of bits of the resource allocation field corresponding to the second resource allocation type.

13. The method of claim 10, wherein according to the number of bits indicating resource allocation of the resource block group subsets, determining the indication that indicates whether or not a resource block in each resource block group subset is scheduled to the user equipment comprises:

according to the number of bits indicating resource allocation of the resource block group subsets, determining an indication for indicating whether or not a resource block in each resource block group in the common resource area is to be scheduled to the user equipment, and determining an indication for indicating whether or not resource blocks in the dedicated resource area are to be scheduled to the user equipment, wherein one bit in the indication for indicating whether or not resource blocks in the dedicated resource area are to be scheduled to the user equipment indicates whether or not N resource blocks in the dedicated resource area are to be scheduled to the user equipment, wherein N is equal to a value obtained by rounding up a ratio of the resource block group size in the dedicated resource area to the resource block group size in the common resource area.

14. A resource allocation apparatus, characterized in comprising:

a first resource allocation module, configured to according to the number of resource blocks in a common resource area of a carrier and a set first corresponding relationship that has been set, determining determine a first resource block group size corresponding to a first resource allocation type in the common resource area, wherein the first corresponding relationship being is a corresponding relationship between the number of resource blocks and a resource block group size, and according to the first resource block group size, dividing divide all resource blocks in the common resource area of the carrier into one or more resource block groups, wherein the carrier comprises including the common resource area and a dedicated resource area; and

a second resource allocation module, configured to according to the first resource block group size determined by the first resource allocation module, or according to the total number of resource blocks of the carrier and the first corresponding relationship, determining determine a second resource block group size corresponding to the first resource allocation type in the dedicated resource area, and according to the second resource block group size, dividing divide resource blocks in the dedicated resource area of the carrier into one or more resource block groups, wherein each one of the one or more resource block groups divided from formed by dividing resource blocks in the dedicated resource area corresponds to an indication for indicating whether or not the resource block group is to be scheduled to a user equipment, and then sending the indication to the user equipment.

15. The resource allocation apparatus of claim 14, wherein the second resource allocation module comprises:

a first resource block group size determination sub-module, configured to according to the number of resource blocks in the common resource area and the first resource block group size, determine the number of resource block groups in the common resource area;

a first number of bits determination sub-module, configured to according to the number of resource block groups in the common resource area determined by the first resource block group size determination sub-module, determine the first number of bits of a resource allocation field for the common resource area;

a second number of bits determination sub-module, configured to according to the first number of bits determined by the first number of bits determination sub-module, determine the second number of bits of a resource allocation field for the dedicated resource area; and

a second resource block group size determination sub-module, configured to according to the number of resource blocks in the dedicated resource area and the second number of bits determined by the second number of bits determination sub-module, determine the second resource block group size.

16. The resource allocation apparatus of claim 15, wherein the second number of bits determination sub-module comprises:

a total number of bits determination unit, configured to according to a maximum number of bits of the resource allocation field corresponding to the carrier, or according to the total number of resource blocks included in the carrier and the first corresponding relationship, determining determine the total number of bits of the resource allocation filed corresponding to the carrier; and

a second number of bits determination unit, configured to according to the total number of bits of the resource allocation field determined by the total number of bits determination unit and the first number of bits, determining determine the second number of bits.

17. The resource allocation apparatus of claim 15, characterized in that, the second resource block group size determination sub-module comprises one or more of the following units:

a first allocation unit, configured to if the number of resource blocks of the last resource block group in the common resource area is equal to the first resource block group size, obtain a first ratio by rounding up a quotient obtained by dividing the number of resource blocks in the dedicated resource area by the second number of bits;

if the first ratio is a positive integral multiple of the first resource block group size, determine the first ratio as the second resource block group size, or, if the first ratio is not a positive integral multiple of the first resource block group size, determine a minimum integer larger than the first ratio and equal to a positive integral multiple of the first resource block group size as the second resource block group size;

a second allocation unit, configured to if the number of resource blocks of the last resource block group in the common resource area is less than the first resource block group size, obtain a first total by adding the number of resource blocks in the dedicated resource area and the number of resource blocks of the last resource block group in the common resource area, and then obtaining a first ratio by rounding up a quotient obtained by dividing the first total by the second number of bits;

if the first ratio is a positive integral multiple of the first resource block group size, determine the first ratio as the second resource block group size, or, if the first ratio is not a positive integral multiple of the first resource block group size, determine a minimum integer larger than the first ratio and equal to a positive integral multiple of the first resource block group size as the second resource block group size; and

a third allocation unit, configured to if the number of resource blocks of the last resource block group in the common resource area is less than the first resource block group size, obtaining a first ratio by rounding up a quotient obtained by dividing the number of resource blocks in the dedicated resource area by the second number of bits to an upward rounding operation;

if the first ratio is a positive integral multiple of the first resource block group size, determine the first ratio as the second resource block group size, or, if the first ratio is not a positive integral multiple of the first resource block group size, determine a minimum integer larger than the first ratio and equal to a positive integral multiple of the first resource block group size as the second resource block group size.

18. The resource allocation apparatus of claim 17, wherein the second resource block group size determination sub-module further comprises:

a setting unit, configured to if the second resource block group size is larger than a set value, replace the second resource block group size with the set value.

19. The resource allocation apparatus of claim 14, wherein the second resource allocation module further comprises:

a first difference calculation sub-module, configured to if the number of resource blocks of the last resource block group in the common resource area is less than the first resource block group size, calculate a difference between the second resource block group size and the number of resource blocks of the last resource block group in the common resource area as a first difference; and

a dividing sub-module, configured to group the resource blocks of the last resource block group in the common resource area and resource blocks of a number equal to the first difference in the dedicated resource area that are adjacent to the common resource area in serial number into the first resource block group of resource blocks in the dedicated resource area, or, group resource blocks of a number equal to the first difference in the dedicated resource area that are adjacent to the common resource area in serial number into the first resource block group of resource blocks in the dedicated resource area.

20. The resource allocation apparatus of claim 14, further comprising:

a second number of bits determination module, configured to after determining the second resource block group size corresponding to the first resource allocation type in the dedicated resource area by the second resource allocation module according to the total number of resource blocks of the carrier as well as the corresponding relationship between the number of resource blocks and the resource block group size, according to the number of resource blocks in the dedicated resource area and the second resource block group size, determine the number of resource block groups in the dedicated resource area, and according to the number of resource block groups in the dedicated resource area, determine the second number of bits of a resource allocation field for indicating the dedicated resource area.

21. A resource allocation apparatus, comprising:

a third resource allocation module, configured to according to the number of resource blocks in a common resource area of a carrier and a set second corresponding relationship, or according to a first resource block group size of a first resource allocation type, determining determine the number of resource block group subsets corresponding to a second resource allocation type, wherein the carrier includes comprises the common resource area and a dedicated resource area, and the second corresponding relationship is corresponding relationship between the number of resource blocks and the number of resource block group subsets, and allocate resource block groups of the carrier into the resource block group subsets;

a total number of bits determination module, configured to determine the total number of bits of a resource allocation field corresponding to the second resource allocation type; and

a fourth resource allocation module, configured to according to the total number of bits of the resource allocation field corresponding to the second resource allocation type determined by the total number of bits determination module, the number of bits required for indicating the resource block group subsets, and the number of bits required for indicating a resource allocation direction, determining determine the number of bits indicating resource allocation of the resource block group subsets of the second resource allocation type, according to the number of bits indicating the resource allocation of the resource block group subsets, determining determine an indication that indicates whether or not a resource block in each resource block group subset is to be scheduled to a user equipment; and

sending the indication to the user equipment.

22. The apparatus of claim 21, wherein the total number of bits determination module comprises:

a first determination sub-module, configured to according to the total number of resource blocks included in the carrier and the second corresponding relationship, determine the total number of bits of the resource allocation field corresponding to the second resource allocation type of the carrier;

or

a second determination sub-module, configured to determine the total number of bits of the resource allocation field corresponding to the second resource allocation type, which is equal to the total number of bits of the resource allocation field corresponding to the first resource allocation type.

23. The apparatus of claim 21, wherein,

the third resource allocation module is particularly configured to determine the number of resource block group subsets corresponding to the second resource allocation type in the common resource area of the carrier, wherein the number of resource block group subsets corresponding to the second resource allocation type in the common resource area of the carrier is equal to the first resource block group size corresponding to the first resource allocation type in the common resource area.

24. The apparatus of claim 21, further comprising:

a module configured to determine the resource block group size of the second resource allocation type corresponding to the carrier in the dedicated resource area and the resource block group size of the second resource allocation type corresponding to the carrier in the common resource area.

25. The apparatus of claim 21, characterized in that, the fourth resource allocation module comprises:

a common resource sub-module, configured to according to the number of bits indicating resource allocation of the resource block group subsets, determine an indication for indicating whether or not a resource block in each resource block group in the common resource area is to be scheduled to the user equipment; and

a dedicated resource sub-module, configured to according to the number of bits indicating resource allocation of the resource block group subsets, determine an indication for indicating whether or not resource blocks in the dedicated resource area are scheduled to the user equipment, wherein one bit in the indication for indicating whether or not resource blocks in the dedicated resource area are to be scheduled to the user equipment indicates whether or not N resource blocks in the dedicated resource area are to be scheduled to the user equipment, wherein N is equal to a value obtained by rounding up a ratio of the resource block group size in dedicated resource area to the resource block group size in common resource area.