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Method for dynamic regulation of wireless resource block configuration based on offset

A wireless resource allocation and wireless resource block technology, which is applied in network traffic/resource management, wireless communication, transmission path separation devices, etc., can solve problems such as spectrum utilization rate decline, and achieve the effect of improving throughput

Inactive Publication Date: 2012-01-11
NANTONG WELL ELECTRIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the subcarrier configuration in the system RB is fixed, since the channel has frequency selection and time selectivity in most cases, and the resources occupied by the TB are only part of the channel resources, the MCS allocated for the TB may not be optimal, so Causes a decrease in spectrum utilization

Method used

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  • Method for dynamic regulation of wireless resource block configuration based on offset
  • Method for dynamic regulation of wireless resource block configuration based on offset
  • Method for dynamic regulation of wireless resource block configuration based on offset

Examples

Experimental program
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Effect test

example 1

[0053] Example 1: The sender selects an offset based on the feedback information from the receiver, where the sender is BS and the receiver is UE

[0054] Such as figure 2 As shown, the present invention under this example includes the following processes:

[0055] Step S202, determining an offset set according to the radio resource configuration attribute in the radio resource block;

[0056] Assuming that the frequency resource bandwidth of the OFDM system carrying data is 9MHz, and the subcarrier spacing is 15KHz, the number of useful subcarriers is 600 except for DC (that is, the 0Hz subcarrier), which is set from -4.5MHz to 4.5MHz, and the subcarriers (sub- carrier) is numbered SC0~SC599, 50 resource blocks (RB0~RB49), each RB contains 12 subcarriers, and the offset set is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, RB is a centralized allocation mode, that is, the subcarriers in each RB are continuous, such as corresponding to an offset of 0, RB0 contains subcarriers SC0,...

example 2

[0063] Example 2: The sender chooses an offset by itself, where the sender is BS and the receiver is UE

[0064] Such as image 3 As shown, the present invention under this example includes the following processes:

[0065] Step S302, determining an offset set according to the radio resource configuration attribute in the radio resource block;

[0066] Assuming that the frequency resource bandwidth of the OFDM system carrying data is 9MHz, and the subcarrier spacing is 15KHz, the number of useful subcarriers is 600 except for DC (that is, the 0Hz subcarrier), which is set from -4.5MHz to 4.5MHz, and the subcarriers (sub- carrier) is numbered SC0~SC599, 50 resource blocks (RB0~RB49), each RB contains 12 subcarriers, and the offset set is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, RB is a centralized allocation mode, that is, the subcarriers in each RB are continuous, such as corresponding to an offset of 0, RB0 contains subcarriers SC0, SC1, ..., SC11, RB1 contains SC12, SC13, ...

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Abstract

The present invention provides a dynamic adjustment method of a radio resource block configuration based on a offset, which comprises the following procedures: S102, an offset aggregation is determined according to the radio resource configuration attribute in the radio resource block; S104, one offset is periodically and non-periodically selected from the offset aggregation and the part and the whole radio resource configuration in the radio resource block are changed according to the chosen offset; S106, the transmission data is dispatched according to the changed radio resource block. The change of the sub-carrier configuration in the RB through the technical proposal enables the channel capacity of the sub-channel based on the RB band width in the OFDM system to one or a plurality of receivers to be optimized statistically, thereby improving the transmitted throughput, and in particular to be suitable for a forth mobile communication system.

Description

technical field [0001] The invention relates to access technology in a communication system, in particular to a method for dynamically adjusting wireless resource block configuration based on offset. Background technique [0002] With the evolution of the cellular system, the OFDMA (Orthogonal Frequency Division Multiple Access, Orthogonal Frequency Division Multiple Access) system will gradually become the mainstream technology for future broadband mobile communications. The core idea of ​​OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) system is to use IFFT (Inverse Fast Fourier Transform) to modulate the data stream on multiple subcarriers, and divide the frequency response of the channel to make it into Parallel, independent, approximately memoryless multiple sub-channels. Therefore, the basic wireless resources of the OFDM system are frequency and time (or time interval). If combined with coding technology and multi-antenna...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/32H04W28/16H04L27/26H04W72/04
CPCH04J11/0026H04L5/0082H04L5/0007H04W72/04H04L5/0037
Inventor 李峰赵楠苟伟朱常青梁枫
Owner NANTONG WELL ELECTRIC MOTOR
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