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Frequency planning method and system for cellular communication system for fixed relays

A frequency planning and cellular mobile communication technology, applied in wireless communication, network planning, electrical components, etc., can solve problems such as complex system architecture, unguaranteed transmission quality in non-registered frequency bands, and complicated functions of relay nodes and mobile terminals

Inactive Publication Date: 2010-10-13
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Its disadvantage is that it complicates the system architecture and also complicates the functions of the relay node and the mobile terminal because both the relay node and the mobile terminal need to operate on two air interfaces
In addition, the transmission quality of non-registered frequency bands cannot be guaranteed

Method used

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  • Frequency planning method and system for cellular communication system for fixed relays
  • Frequency planning method and system for cellular communication system for fixed relays
  • Frequency planning method and system for cellular communication system for fixed relays

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0045] see figure 1 , introduce the specific operation steps of the frequency planning method of the cellular mobile communication system that the present invention is used for fixed relay:

[0046] (1) According to the cell deployment requirements of the cellular mobile communication system, one base station and multiple relay nodes are set up for each cell, and cell parameters are initialized;

[0047] (2) dividing the usable frequency resources of each cell into a plurality of orthogonal frequency subsets, wherein the number of frequency subsets is equal to the sum of the number of base stations and multiple relay nodes in each cell;

[0048] (3) Allocating different frequency subsets to the base station and multiple relay nodes in each cell ac...

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Abstract

The invention relates to a frequency planning method and a system for a cellular communication system for fixed relays. A frequency planning unit (FPU) is introduced and two frequency planning methods are provided when the FPU is 1 and 7; and different frequency subsets are allocated to base stations and relay nodes in cells according to the set frequency planning scheme. Through ingenious and flexible frequency planning design, interference among the cells of a user can be effectively reduced. The frequency subsets of three sectors of each relay node in the system are the same, so that the complexity of the relay node is reduced; and fixed relay nodes are arranged on the top of a hexagonal cell, directed transmission is realized by using a directional antenna, and three cells share the same relay node, so that interference sources and interference strength among the cells are reduced, association among the cells is enhanced and convenience is brought to switching among the cells by the user. The method and the system have the advantages of providing better services for cell edge users, effectively improving the service quality of the cell edge users, and bringing convenience to signaling interaction and user access among the cells.

Description

technical field [0001] The invention relates to a frequency planning method for a fixed relay cellular mobile communication system and the structural composition of the communication system, belonging to the technical field of mobile communication. Background technique [0002] With the rapid development of mobile communication systems and the continuous increase of multimedia applications and services, people's demand for high-speed data services is also increasing. However, it is very difficult for the network structure of the traditional cellular mobile communication system to achieve the high-speed data transmission rate and system capacity expected by the future mobile communication system. The network structure of the traditional cellular mobile communication system faces two problems: on the one hand, the data transmission rate of the future wireless communication system is more than twice higher than that of the 3G wireless communication system, and the transmission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/12H04W16/26H04W16/28
Inventor 王晓湘屈琳张鸿涛王玉龙
Owner BEIJING UNIV OF POSTS & TELECOMM
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