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A method for realizing multi-carrier frequency coverage of TD-SCDMA system

A TD-SCDMA, system implementation technology, applied in the field of multi-carrier frequency coverage in mobile communication systems, can solve the problems of complex terminal measurement, difficult cell search, low system efficiency, etc., achieve accurate search, improve system performance, and clear the measurement process. Effect

Active Publication Date: 2009-06-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a method for realizing multi-carrier frequency coverage in a TD-SCDMA system to solve the problems of difficult cell search, complicated terminal measurement, difficult switching and low system efficiency

Method used

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  • A method for realizing multi-carrier frequency coverage of TD-SCDMA system
  • A method for realizing multi-carrier frequency coverage of TD-SCDMA system
  • A method for realizing multi-carrier frequency coverage of TD-SCDMA system

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the implementation of technical scheme is described in further detail:

[0026] figure 1 It is a schematic diagram of multi-carrier frequency coverage in TD-SCDMA system.

[0027] Suppose there are 9 TD-SCDMA carrier frequency points in the 2010-2025MHz frequency band: f1, f2, f3, f4, f5, f6, f7, f8, f9. Among them, f3, f6 and f8 are "candidate pilot frequency points"; f1, f2, f4, f5, f7, f9 are "non-candidate pilot frequency points".

[0028]The UE is located at the intersection of coverage of 4 multi-carrier frequency cells Cell_A, Cell_B, Cell_C and Cell_D, and each cell has 6 carriers. The cells Cell_A, Cell_B and Cell_C select f3 as the pilot frequency point from the "candidate pilot frequency points", and the auxiliary carrier frequencies are f1, f2, f4, f5 and f6. Cell_D selects f6 as the pilot frequency point from the "candidate pilot frequency points", and the auxiliary carrier frequencies are f1, f2, f3, f4 an...

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Abstract

This invention discloses a method for multiply carrier frequency covering TD-SCDMA system, which comprises the following steps: a) selecting several frequency points as' candidate pilot frequency point' from frequency band of the system, the other frequency points as' non candidate pilot frequency point'; b) every area or sector selects at least one frequency point from' candidate pilot frequency point' as the ' pilot carrier frequency', the system will send DwPCH only in pilot carrier frequency; c) after opening, the terminal device UE will select network in the candidate pilot frequency point. By said method, the terminal measurement is precise, which is benefit for increasing switching successful rate.

Description

technical field [0001] The invention relates to a mobile communication technology, in particular to a method for realizing multi-carrier frequency coverage in a mobile communication system. Background technique [0002] TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) is one of the third-generation mobile communication space interface technical specifications officially released by ITU. TD-SCDMA system, like other mobile communication systems, in order to meet the growing needs of the mobile communication market, Carrying out multi-carrier frequency coverage in the same sector / cell will be an important means for TD-SCDMA system to increase system capacity. [0003] The current TD-SCDMA (that is, LCR TDD) standard does not consider the multi-carrier frequency characteristics. Therefore, the operation and configuration of radio resources on the Uu interface are all carried out for one carrier frequency. In the process of establishing a cell on the Iub in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/36H04B7/26H04Q7/38H04W48/16H04W72/02H04W72/04
Inventor 江溯
Owner ZTE CORP