A method and apparatus for resource allocation

A resource allocation and resource technology, applied in the communication field, can solve the problems of large difference in binding granularity, limit DMRS estimation performance, and inflexible system bandwidth binding and mapping methods, and achieve the effect of improving system performance and optimizing system performance

Active Publication Date: 2018-12-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition to the PRB size, the frequency domain granularity of other resource scheduling, precoding frequency domain granularity, channel state information feedback frequency domain granularity and other LTE frequency domain granularity also have the same problem, such as insufficient mapping methods bound to the system bandwidth Flexible, often limits the performance of DMRS estimation. For example, in different scenarios, the channel characteristics cannot be well summarized by only using the system bandwidth. For example, in the 4G and 70G carrier frequency scenarios, the frequency selection corresponding to the same system bandwidth is very different. , the corresponding binding granularity to obtain the best estimated performance will also vary greatly

Method used

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  • A method and apparatus for resource allocation
  • A method and apparatus for resource allocation
  • A method and apparatus for resource allocation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099]Embodiment 1: It is agreed to bind the PRB bundling size set with the system bandwidth (system bandwidth).

[0100] Table 1

[0101]

[0102] Among them, the physical resource group granularity can represent the granularity of multiple physical resource block binding; {1, 2, 4} represents a physical resource group granularity set or a physical resource binding granularity set, or can be referred to simply as physical resource Group set or physical resource binding set, which corresponds to system bandwidth ≤ 5; 1 in the physical resource group granularity set {1, 2, 4} means that 1 physical resource block is bound to form a physical resource block group, and 2 means One physical resource block is bound to form a physical resource block group.

[0103] When the system bandwidth is ≤20, the corresponding PRG Size set can be {1, 4, 6};

[0104] When the system bandwidth is ≤50, the corresponding PRG Size set can be {8}, and the set {8} only includes a value 8, that is,...

Embodiment 2

[0120] Embodiment 2: agreeing to bind the PRB bundling size set with the system radio carrier frequency (system radiocarrier frequency, RCF) parameter.

[0121] Table 2

[0122]

[0123] One way of implementation is: the protocol stipulates the corresponding relationship between the PRB bundling size set and the system radio frequency carrier frequency.

[0124] -The greater the system RF carrier frequency, the greater the maximum PRB bundling size in the corresponding PRB bundling size set (at least the same);

[0125] - The PRB bundling size in the PRB bundling size set is a divisor of the upper scheduling granularity (RBG) (corresponding to the system bandwidth).

[0126] - The first or last value in each PRB bundling size set is the default value. When the PRB bundling size is not configured on the network device, the terminal adopts the first or last value of the PRB bundling size set agreed in the protocol by default.

[0127] Another implementation method is: the ...

Embodiment 3

[0136] Embodiment 3: agree to bind the PRB bundling set with the system subcarrier spacing (system subcarrierspacing).

[0137] table 3

[0138]

[0139] One way of implementation is to agree on the correspondence between the PRB bundling size set and the system subcarrier spacing.

[0140] -The larger the system subcarrier spacing, the smaller the maximum PRB bundling size in the corresponding PRB bundling size set (at least the same);

[0141] - The PRB bundling size in the PRB bundling size set is a divisor of the upper scheduling granularity (RBG) (corresponding to the system bandwidth).

[0142] - The first or last value in each PRB bundling size set is the default value. When the PRB bundling size is not configured on the network device, the terminal adopts the first or last value of the PRB bundling size set agreed in the protocol by default.

[0143] Another implementation method is: the network device configures a PRB bundling size set for the terminal.

[0144...

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Abstract

The embodiment of the invention discloses a resource allocation method and a device. The method comprises the following steps: a sending end device generates configuration information, and the configuration information is used for indicating at least one resource binding granularity; the resource binding granularity belongs to a resource binding granularity set; the resource binding granularity set corresponds to at least one system configuration parameter;the sending end device sends the configuration information. Embodiments of the present application provide a technical solution that can flexibly determine a suitable resource binding granularity from a resource binding granularity set to match different application scenarios. Therefore, by virtue of the technical scheme provided by theembodiments of the present application, the diversified scenario requirements of the wireless communication system can be met, and the system performance can be effectively optimized for different scenarios.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a resource allocation method and device. Background technique [0002] In a Multiple Input Multiple Output (English: Multiple Input Multiple Output; MIMO for short) system, PRB bundling is a technique for improving channel estimation performance. Its technical solution is to agree on the granularity (size) of continuous PRB (Physical resource block) using the same preprocessing method (including beamforming and precoding), and the size is usually greater than 1, which is convenient for the terminal to perform channel estimation jointly with multiple PRBs. When the terminal performs joint channel estimation based on multiple PRBs, the extrapolation calculation of channel estimation can be reduced. In channel estimation, the channel estimation value obtained by extrapolation calculation has a large deviation. Therefore, reducing extrapolation calculation (co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04L27/2602H04W72/53H04W72/20H04L5/0007H04L5/0044H04L5/008H04L5/0092H04B7/0626H04B7/0456H04W72/0453H04L5/003H04L5/0094H04W72/044H04W72/21H04W72/535H04W72/23H04W72/54
Inventor 刘永戎璐毕晓艳
Owner HUAWEI TECH CO LTD
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