Method for measuring global system for mobile communications (GSM) neighborhood in time division-synchronous code division multiple access (TD-SCDMA) system

A TD-SCDMA, adjacent cell technology, applied in the communication between multiple stations, electrical components, synchronization devices, etc., can solve the problems of sending UpPCH signals, data throughput drop, implementation impact, etc., to reduce the receive signal window. effect of length

A TD-SCDMA, adjacent cell technology, applied in the communication between multiple stations, electrical components, synchronization devices, etc., can solve the problems of sending UpPCH signals, data throughput drop, implementation impact, etc., to reduce the receive signal window. effect of length

CN102244875AInactive Publication Date: 2011-11-16MSTAR SEMICON INC
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  • Method for measuring global system for mobile communications (GSM) neighborhood in time division-synchronous code division multiple access (TD-SCDMA) system
  • Method for measuring global system for mobile communications (GSM) neighborhood in time division-synchronous code division multiple access (TD-SCDMA) system
  • Method for measuring global system for mobile communications (GSM) neighborhood in time division-synchronous code division multiple access (TD-SCDMA) system

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Embodiment Construction

[0045] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0046] A kind of method that the present invention provides in TD-SCDMA system measures GSM adjacent cell, directly search SCH channel to obtain the clock synchronization of GSM adjacent cell (instead of first searching FCCH channel to obtain synchronization), carry out BSIC verification measurement, described BSIC Verification measures include the initial BSIC identification process and the BSIC revalidation process. Searching the SCH channel is to receive the training sequence part of the SCH channel, and set the observation time window and length of the SCH training sequence at a fixed position in each TD-SCDMA subframe.

[0047] Use the first frequency synthesizer (generally the frequency synthesizer of the GSM mode) to receive the GSM neighboring cell signal, use the second frequency synthesizer (generally the frequency synthesizer of t...

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Abstract

The invention discloses a method for measuring a global system for mobile communications (GSM) neighborhood in a time division-synchronous code division multiple access (TD-SCDMA) system. The method is characterized in that: clock synchronization of a GSM neighborhood is acquired by directly searching a supplemental channel (SCH) channel to perform base station identity code (BSIC) verification measurement, wherein the BSIC verification measurement comprises an initial BSIC identification process and a BSIC re-confirmation process; the searched SCH channel is a training sequence for receiving the SCH, and an observation time window and length of the SCH training sequence are arranged in fixed positions in each TD-SCDMA sub-frame; and a GSM neighborhood signal is received by using a first frequency synthesizer, and TD-SCDMA signals are transmitted and received by using a second frequency synthesizer. A low cost scheme with single receiver is adopted in the invention, and the conventional standard or network side implementation is not needed to modify, so that measurement on neighborhood under TD-SCDMA model high speed data service can be well supported.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, in particular to a method for measuring GSM neighboring cells in a TD-SCDMA system. Background technique [0002] GSM (Global System for Mobile communication, Global System for Mobile communication) is the second generation mobile communication system (2G). This system supports voice and low-speed data services, and the network coverage is very extensive. TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division-Synchronous Code Division Multiple Access) is the third generation mobile communication system (3G). Compared with the GSM system, it can provide a higher data transmission rate. At present, large-scale construction is underway in China , but its network coverage is far from reaching the level of the GSM system. In view of this, using GSM network to expand TD-SCDMA network coverage to maintain the continuity of 3G user experience has become a must for ...

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Application Information

Patent Timeline
16 Nov 2011
Publication
CN102244875A
IPC
H04W24/00; H04W56/00; H04B7/26
Inventors
戎波