Wireless resource allocation method and device

A technology of wireless resource and allocation method, applied in the field of communication

Active Publication Date: 2014-07-02
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
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Problems solved by technology

Traditional mobile communication networks cannot solve these problems

Method used

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  • Wireless resource allocation method and device
  • Wireless resource allocation method and device
  • Wireless resource allocation method and device

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0041] figure 1 It is a schematic diagram of network architecture of a high-speed railway communication system provided by an embodiment of the present invention. see figure 1 , the network architecture of the high-speed railway communication system adopts the form of distributed base stations. The system includes: a base station including an indoor baseband processing unit (Building Baseband Unit; hereinafter referred to as BBU) and a radio remote unit (Radio Remote Unit; hereinafter referred to as RRU). The BBU is placed in the base station, and the RRU can be flexibly deployed along the railway line. Multiple RRUs are respectively connected to a BBU through optical fibers. The BBU and RRU are used to process baseband signals and ...

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Abstract

The invention discloses a wireless resource allocation method and device, and pertains to the technical field of communication. The method comprises the following steps: the minimum transmitting power of users of a base station is calculated according to the subcarrier number, the antenna number, the time slot number and the user number of the base station; and the base station is used to perform communication according to the calculated minimum transmitting power. According to the invention, by considering subcarriers, antennas, time slots and power wireless resources comprehensively, the wireless resource allocation problem is modeled into a nolinear integer programming problem, joint optimization is performed and transmitting powers are calculated so as to provide a multidimensional resource allocation strategy for a high speed railway downlink communication system, the objective of minimizing the total transmitting power can be realized on the premise of ensuring the service quality of each user, so the wireless resource utilization efficiency of the whole communication system can be improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for allocating wireless resources. Background technique [0002] High-speed train is a fast and convenient means of transportation, attracting more and more people to take it, which brings new challenges to effective wireless communication network deployment. For high-speed railway scenarios exceeding 300km / h, a series of new problems will appear, such as severe Doppler shift, fast and frequent switching, and dynamically changing channel conditions. Traditional mobile communication networks cannot solve these problems, and a dedicated wireless communication network needs to be designed. And since hundreds of users are distributed concentratedly in the fast-moving train carriages, it is especially necessary to consider an appropriate wireless resource allocation strategy to improve the resource utilization of the entire communication system. C...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCY02B60/50Y02D30/70
Inventor 李曦赵宜升徐全盛王珂李屹纪红
Owner BEIJING UNIV OF POSTS & TELECOMM
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