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Radio resource allocation method and device

A technology of wireless resource and allocation method, applied in the field of wireless resource allocation method and device, capable of solving problems such as increased interference to neighboring cells, increased available power, difficulty in satisfying UEQoS, etc., and achieves high spectrum efficiency

Active Publication Date: 2014-06-11
启东市文丰五金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Conversely, fewer RBs can be allocated to a single UE, the available power of each UE increases, and the interference to neighboring cells increases. The higher the MCS, the higher the throughput of the cell, and the less likely the QoS of the UE is to be satisfied;
[0007] In summary, there is still no good way to solve the contradiction between QoS satisfaction and system throughput in the LTE system

Method used

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  • Radio resource allocation method and device

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Experimental program
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Embodiment 1

[0049] This embodiment provides a wireless resource scheduling method, such as figure 1 shown, including the following steps:

[0050] Step 101: Obtain the maximum value of the power spectral density (PSD) of the user equipment (UE) as the initial value of PSD;

[0051] A method for obtaining the maximum value of PSD according to the interference threshold and path loss of adjacent cells is given below.

[0052] Initialize the interference threshold of adjacent cells, specifically, the interference threshold P of each adjacent cell i Interference The value of i and the target IOT (Interference Over Thermal) of the cell (Cell), refers to the measured ratio of the interference power generated by all UEs in other cells to the thermal noise power, IOT=(Interference+Noise) / Noise, IOT is used for To characterize the interference level measured on the uplink bandwidth, it is usually necessary to smooth the measurement results in the time domain, and the target IOT is often an empir...

Embodiment 2

[0076] This embodiment provides a radio resource scheduling method in an LTE Release8 system, such as figure 1 shown, including the following steps:

[0077] Step 201: Obtain the maximum value of the power spectral density (PSD) of the user equipment (UE) as the initial value of PSD;

[0078] Preferably, the same method as in Embodiment 1 is used to obtain the maximum value of PSD as the initial value.

[0079] Optionally, the maximum transmit power of the UE is P cMAX , or the transmit power P on a unit RB required to satisfy the highest order MCS highestMCS , or P MAXfromInterference as PSD max.

[0080] Step 202: Obtain the minimum value of the resource block (RB) number according to the PSD initial value as the initial value of the RB number;

[0081] The formula is expressed as:

[0082] in Indicates rounding down, N RBavailable Indicates available bandwidth;

[0083] Step 203: Adjust the initial PSD value and the initial value of the number of RBs according t...

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Abstract

Disclosed are a radio resource allocation method and apparatus. The method comprises: obtaining the maximum value of the power spectral density (PSD) of a user equipment (UE) as the initial value of the PSD (101); obtaining the minimum value of a resource block (RB) count as the initial value of the RB count according to the initial value of the PSD (102); adjusting the initial value of the PSD and the initial value of the RB count according to the quality of service (QoS) requirements of the UE and obtaining a final value of the PSD and a final value of the RB count in the present data transmission (103); and constructing the resource allocation signal according to the final value of the PSD and the final value of the RB count and issuing the signal to the UE (104). The present invention ensures the maximum spectral efficiency of the system while satisfying the QoS requirements of the UE.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular, to a method and device for allocating wireless resources. Background technique [0002] In a wireless communication system, Quality of Service (QoS, Quality of Service) and system throughput are the two most important indexes of the wireless system. Interference coordination is the guarantee of system QoS satisfaction, and interference coordination often needs to sacrifice the overall throughput of the cell (Cell) in exchange for the improvement of cell edge throughput, thereby improving the QoS requirements of more UEs in the entire cell. How to meet the QoS requirements based on QoS Maximizing system throughput on the Internet has always been a hotspot in the research of wireless communication technology. [0003] Taking the Long Term Evolution (LTE, Long Term Evolution) system as an example, when data transmission is performed in the LTE system, uplink / downlink tim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/24H04W52/26H04W72/06H04L1/00H04W72/54
CPCH04L5/0042H04L27/2271H04L5/006H04L5/0044H04W72/042H04W72/087H04W72/543H04W72/23
Inventor 张庆宏
Owner 启东市文丰五金有限公司