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Reuse method and device for dynamic frequency

A technology of dynamic frequency and frequency reuse, applied in the field of communication network

Inactive Publication Date: 2006-02-15
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although methods such as uplink / downlink synchronization and scrambling code reuse have been proposed to eliminate or reduce interference, they still cannot fundamentally solve the problem of sharing between P2P communication and traditional communication, and between paired P2P communication user terminals. The problem of mutual interference of the same frequency

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  • Reuse method and device for dynamic frequency
  • Reuse method and device for dynamic frequency
  • Reuse method and device for dynamic frequency

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Embodiment Construction

[0021] According to the dynamic frequency reuse method proposed by the present invention, the radio network controller determines the candidate frequencies of each cell that can be used for P2P communication according to the frequency planning of the current communication network and the management strategy of wireless resources, and sends the candidate frequencies of each cell to each cell through each base station. broadcast to all user terminals in the cell. A user terminal located in the cell detects the signal strength of the candidate frequency for communication according to the P2P communication candidate frequency of its serving cell, and reports the detection result to the network controller. The network controller then selects a frequency suitable for the user terminal to perform P2P communication from the candidate frequencies according to the detection result and combined with the use of all candidate frequency resources in the serving cell of the user terminal, and...

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Abstract

The dynamic frequency multiplexing method for P2P communication executed in communication network system comprises steps: according to predetermined wireless resource management scheme, determining a set candidate frequency for P2P communication in a sub zone; sending the candidate frequency to a user terminal in local sub zone; using this user's terminal to detect the signal strength and determine the proper P2P communication frequency for the user.

Description

technical field [0001] The present invention relates to a communication network, in particular to a method and device for dynamic frequency reuse that can be used for user terminals to perform direct communication, such as P2P (point-to-point peer-to-peer) communication. technical background [0002] In a traditional cellular mobile communication system, a user terminal must pass through a base station to communicate with another user terminal. figure 1 It shows the traditional communication mode in the TD-SCDMA system, user terminals UE1 and UE2 exchange information through the universal mobile communication system terrestrial radio access network (UTRAN) composed of base station (Node B) and radio network controller (RNC). However, when two user terminals residing in the same cell are very close to each other, it should be a more reasonable method to use direct communication, which is the so-called point-to-point peer-to-peer communication, or P2P for short. P2P communica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/36H04Q7/32H04W16/14
CPCH04W16/14H04L67/104H04W4/08H04W72/0453H04W72/53
Inventor 孙礼尚丹潘晟
Owner KONINKLIJKE PHILIPS ELECTRONICS NV