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Improved 5G dynamic TDD network cell clustering interference coordination scheme

A technology of interference coordination and network cell, applied in the field of mobile communication, can solve the problems of low power of base station and cell clustering method no longer applicable

Active Publication Date: 2019-09-20
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: The purpose of the invention is to solve the problem that the traditional cell clustering method is no longer applicable due to the characteristics of low power and dense distribution of base stations in cells in 5G ultra-dense networks

Method used

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  • Improved 5G dynamic TDD network cell clustering interference coordination scheme
  • Improved 5G dynamic TDD network cell clustering interference coordination scheme
  • Improved 5G dynamic TDD network cell clustering interference coordination scheme

Examples

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Embodiment

[0090] (1) We consider the indoor double-block building model with dense coverage of femto base stations. Each building has 6 floors in total, and each floor has 2 rows of rooms. There are 10 rooms in each row. , 3m. It is assumed that the transmit power of the femto base station is not much different from the transmit power of the user equipment, and the penetration loss of the building wall is considered. The distribution of base stations and user equipment is random. First, specify the number K of cells, then randomly select K rooms, and randomly distribute a base station and multiple user equipment in each selected room until all K rooms are distributed. , so that the number of base stations is either 0 or 1 for each room in an indoor two-block building.

[0091] (2) Before interference coordination, parameter setting and femtocell TDD frame configuration in the initial state are performed. The carrier frequency is 2GHz, the power of the femto base station is set to 23dB...

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Abstract

The invention discloses an improved 5G dynamic TDD (Time Division Duplex) network cell clustering interference coordination scheme to realize interference suppression on cross time slot interference generated by adopting a dynamic TDD mode in a 5G ultra-dense network. According to the method, dynamic clustering is carried out by taking interference between user equipment and interference between base station equipment in the 5G ultra-dense network into consideration at the same time, and a low-complexity clustering mode is adopted, so that low-power nodes in the ultra-dense network can be dynamically clustered at a relatively small time scale. Compared with a cell using a traditional cell clustering method for interference coordination, the improved 5G dynamic TDD network cell clustering interference coordination scheme not only can improve the uplink throughput of the system, but also can improve the downlink throughput of the system, and obtains ideal performance in a 5G ultra-dense network.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to an improved 5G dynamic TDD network cell cluster interference coordination scheme. Background technique [0002] In order to adapt to dynamically changing and asymmetric uplink and downlink traffic, according to the short-term traffic demand, realize the flexible utilization of the downlink and uplink spectrum of the cell, one of the key technologies for deploying 5G in the dynamic TDD cell of Orthogonal Frequency Division Multiple Access . [0003] The cross-slot interference problem caused by the dynamic TDD mode is an important content of interference coordination in the 5G dynamic TDD network. Interference coordination through cell clustering can achieve greater system throughput in the 5G dynamic TDD network. Loss methods for small clustering have been extensively studied. Due to the low power and dense distribution of base stations in cells in 5G ultra-dense n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/08H04W16/10H04J11/00H04W72/54
CPCH04W72/0446H04W16/10H04J11/0026H04J11/005H04W72/53H04W72/541H04W72/542Y02D30/70
Inventor 刘楠刘骏萍潘志文尤肖虎
Owner SOUTHEAST UNIV
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