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A competition-based resource sharing method, network element and system

A technology for sharing domain and frequency domain resources, applied in the field of long-term evolution advanced systems, it can solve the problems of complex interference problems, interference coordination and processing cannot keep up with changes in interference status, and can not meet requirements, etc., to avoid uplink mutual interference and improve efficiency. Effect

Active Publication Date: 2021-12-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the improvement of resource allocation dynamics, the interference problem in the case of reusing the same spectrum between cells will become more complicated, which also puts forward higher requirements for the interference coordination technology between adjacent cells. The relatively static interference in the traditional way A coordinated approach will not meet the needs
There is often a problem that the interference coordination process cannot keep up with the change of the interference state, which reduces the efficiency of resource allocation and greatly affects the overall throughput of the system.

Method used

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  • A competition-based resource sharing method, network element and system
  • A competition-based resource sharing method, network element and system
  • A competition-based resource sharing method, network element and system

Examples

Experimental program
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Effect test

Embodiment 1

[0203] Such as Figure 5 As shown, in a heterogeneous network (both FDD (Frequency Division Duplexing, frequency division duplex) system) scenario, a macro-cell terminal (MUE) interferes with a micro-cell communication site (HeNB). The MUE is located at the edge of the Femto cell coverage, and the uplink transmission of the MUE will cause interference to the Femto. The configuration process of the MUE competition sharing mode and the process of the MUE competition for obtaining uplink transmission resources are described in detail below. This embodiment is described by taking a heterogeneous network composed of HeNBs and eNBs as an example, and other forms of heterogeneous networks are applicable.

[0204] Such as Figure 6 As shown, the macro cell base station eNB determines the contention shared domain and sends it to the micro cell base station HeNB. Specifically, the eNB can determine the contention shared domain according to the current load status and the number of term...

Embodiment 2

[0218] Such as Figure 7 As shown, in the heterogeneous network (both TDD system) scenario, there are two uplink interferences between macro and micro: the macro terminal (MUE) interferes with the micro base station (HeNB), and the micro terminal HeNB interferes with the macro base station eNB. The following describes in detail the process of configuring the contention sharing mode for the MUE and the HUE, and the process of obtaining uplink transmission resources through competition between the MUE and the HUE. This embodiment is described by taking a heterogeneous network composed of HeNBs and eNBs as an example, and other forms of heterogeneous networks are applicable.

[0219] Such as Figure 8 As shown, the macro cell base station eNB negotiates with the micro cell base station HeNB to determine the contention sharing domain. Specifically, eNB and HeNB exchange the current load status and the number of terminals that each needs to be scheduled to the competition sharing ...

Embodiment 3

[0233] Such as Figure 10 As shown, in the homogeneous network scenario, there is uplink interference in the macro zone: that is, the uplink transmission of the UE at the edge of the macro zone potentially interferes with the reception of the base station eNB in ​​the adjacent cell. The following describes in detail the process of configuring the contention sharing mode of the eNBs for their subordinate UEs, and the process of the UEs in each macro area competing to obtain uplink transmission resources. .

[0234] Such as Figure 11 As shown, the upper management node configures the contention sharing domain for the communication station (the shaded part in the figure), and determines to use some subbands in the system bandwidth (for example, the system bandwidth is 20MHz, and the subband range is from the 60th RB to the 69th RB) resources As a competitive shared resource, it is allocated to each eNB;

[0235] The upper management node may be an entity located on th...

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Abstract

This application proposes a contention-based resource sharing method, network element, and system, involving a long-term evolution advanced system. The method, applied to a communication site, includes: sending contention sharing configuration information to all first-type terminals that meet preset conditions , the contention sharing configuration information is used to instruct all terminals of the first type to compete for time domain and / or frequency domain resources on the contention sharing domain; Uplink data sent by similar terminals. The same time-frequency resources are used to set up a contention shared domain by adjacent communication stations, and terminals meeting certain preset conditions are scheduled to the contention shared domain.

Description

technical field [0001] The present invention relates to a long term evolution advanced system (LTE-Advanced for short), in particular to a contention-based resource sharing method, network element and system. Background technique [0002] With the continuous advancement of radio technology, a large number of various radio services have emerged, and the spectrum resources on which radio services rely are limited. Facing the continuous increase in people's demand for bandwidth, spectrum resources are extremely tense; and On the other hand, under the traditional fixed spectrum allocation mode, the utilization rate of spectrum resources is not high. In a sense, it is this spectrum allocation system that is fixedly assigned to the authorized system that has caused the extremely tight situation of spectrum resources. The cognitive radio technology breaks the fixed spectrum allocation system in the traditional sense, and dynamically allocates the spectrum between systems, improvin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCH04W72/21H04W72/52H04W72/12
Inventor 刘星苗婷毕峰谢峰郁光辉
Owner ZTE CORP