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Method and device for allocating resource units

A resource unit and allocation method technology, applied in the communication field, can solve the problem that resource blocks cannot improve uplink coverage, and achieve the effects of maintaining design unity, ensuring coverage, and reducing complexity

Inactive Publication Date: 2010-03-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Considering the problem that optimizing the design of resource blocks under different TTI configurations at the subframe level cannot improve the uplink coverage, the present invention is made. Therefore, the main purpose of the present invention is to provide a method and device for allocating resource units. To solve the above-mentioned problems in related technologies

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  • Method and device for allocating resource units

Examples

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example 1

[0060] Assuming that the size of the basic unit tile constituting the resource block is 6*the number of symbols in the subframe, for a regular subframe, the number of symbols is 6, then the size (structure) of the tile is 6*6, and the distribution under different TTI configurations The size of the resource block DRU is variable. When the TTI is set to 1 subframe, a distributed resource block DRU is composed of m discretely distributed tiles, assuming that the value of m is 3, the size of the DRU is 3*6*6.

[0061] Such as Figure 4 As shown, when the TTI is set to 2 subframes, a subframe concatenated distributed resource block DRU consists of m discretely distributed tiles, assuming that the value of m is 4, the size of the DRU is 4*6*6, and each There are two discretely distributed tiles on each subframe, and the tiles on the two subframes are staggered in a certain frequency hopping manner.

[0062] Such as Figure 5a As shown, when the TTI is set to 3 subframes, a subfra...

example 2

[0065] Such as Figure 6 As shown, when the TTI is set to 2 subframes, a subframe concatenated distributed resource block DRU is composed of m discretely distributed tiles, assuming that the value of m is 2, the size of the DRU is 2*6*6, and each There is one tile on each subframe, and the tiles on the two subframes are staggered and distributed in a certain frequency hopping manner.

[0066] The second case: when the size of the resource block DRU is fixed, the structure of the tiles constituting the distributed resource unit is not fixed. In the above cases, the following aspects should be paid attention to:

[0067] 1. DRUs under different TTI configurations are composed of the smallest unit tiles with the same or different structures. For different TTI settings, the tile structure that constitutes the DRU corresponds to different TTI settings. Some TTI settings can be the same, and some TTI settings can be different. .

[0068] 2. Under various TTI configurations, the t...

example 3

[0074] The size of the distributed resource block DRU under different TTI configurations is the same, but the tile structure can be different. Assuming that the size of the basic unit tile constituting a resource block is 6 subcarriers*the number of symbols in a subframe and 9 subcarriers*the number of symbols in a subframe, for a regular subframe, the number of symbols is 6, then the size (structure) of the tile It is 6*6 and 9*6. TTI is set to 1, 2 and 3 subframes.

[0075] Such as Figure 7 As shown, when the TTI is set to 1 subframe, a distributed resource block DRU is composed of m discretely distributed tiles, assuming that the value of m is 3, and the tile is 6*6, the size of the DRU is 3*6*6 .

[0076] Such as Figure 7 As shown, when the TTI is set to 2 subframes, a subframe concatenated distributed resource block DRU is composed of m discretely distributed tiles, assuming that the value of m is 2 and the tile is 9*6, the size of the DRU is 2*9*6. There is one t...

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Abstract

The invention provides a method and a device for allocating resource units. The method comprises that: when uplink wireless resources are subjected to distributed resource unit allocation, the size ofthe distributed resources units under different transmission time interval configurations and the structure of minimal units composing of the distributed resource units are subjected to at least oneof the following configurations: one of the size and the structure is configured to be fixed and the other is configured to be not fixed; both are configured to be fixed; and both are configured to benot fixed, wherein the transmission time interval is a time interval occupied by a transmission data block; and the size of the distributed resource units is a product of the number of the minimal units composing of the distributed resource units and the number of subcarriers in the minimal units. The technical scheme can flexibly meet scheduling requirements of different scenes, can reduce the complexity of design, maintains the uniformity of the design, fully and highly efficiently utilizes the resources of a system, effectively ensures the coverage of the system and improves the performance of the system.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a resource unit allocation method and device. Background technique [0002] At present, with the evolution of the network and the development of communication technology, Orthogonal Frequency Division Multiplexing (OFDM) technology allows the frequency spectrum of each sub-channel to overlap each other to improve spectrum efficiency. In addition, at present, the multiple access technology Orthogonal Frequency Division Multiple Access (OFDMA for short) is adopted, that is, multiple users share full-band spectrum resources on one symbol, thereby obtaining multi-user diversity gain. However, there are also some problems in the application of the above-mentioned techniques, for example, the allocation of resources dictates the impact of overhead and efficiency on broadband systems. [0003] In uplink (terminal to base station method) and downlink (base station to termi...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04J11/00H04B7/26
Inventor 吕开颖曲红云
Owner ZTE CORP
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