Method of implementing high speed downlink sharing channel co-frequency cell handoff

A shared channel and same-frequency cell technology, applied in wireless communication, data exchange network, digital transmission system, etc., can solve the problem of not providing mobile terminal switching process

Inactive Publication Date: 2008-02-06
ZTE CORP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0008] In the existing protocols and specifications, the handover process of mobile terminals (including allocated and unallocated high-speed shared resources) in WCDMA system is provided, and the general handover process of mobile terminals

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  • Method of implementing high speed downlink sharing channel co-frequency cell handoff
  • Method of implementing high speed downlink sharing channel co-frequency cell handoff

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Experimental program
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Embodiment Construction

[0037] The terminal establishes a radio bearer in the original HS-DSCH cell, and establishes an HS-DSCH radio link, and the terminal is in the CELL_DCH (dedicated mode) state. The procedure for the terminal to switch between HS-DSCH cells in the same Node B is as follows:

[0038] (1) The radio network controller sends a measurement control request message to the terminal, and the message specifies the object that the terminal needs to measure (such as: information about neighboring cells);

[0039] (2) The terminal sends a measurement report to the radio network controller, including: measurement results of neighboring cells. For example: the terminal performs measurement of adjacent same-frequency cells, and the measurement event is 1G (1G: "change of best cell", the best same-frequency cell changes), then the measurement report includes the measurement results of adjacent same-frequency cells;

[0040] (3) After the radio network controller decides that the terminal switch...

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Abstract

The present invention discloses a method to switch co-frequency cells of a high-speed downlink shared channel, which relates to the communication field. The method is invented to switch the mobile terminals for distributing high-speed shared resources of a TD-SCDMA system between HS-DSCH cells, a technique the prior protocol fails to provide. The present invention is characterized in that: a wireless network controller sends a message request on measurement and control to a terminal; the terminal then sends back a measuring report; and the wireless network controller determines a targeted high-speed downlink shared-channel cell whose terminal needs to be switched to according to the measuring report; in addition, the wireless network controller transfers the high-speed shared resources borne by a radio link of the original high-speed downlink shared-channel cell onto a radio link of the targeted high-speed downlink shared-channel cell through a process of reconfiguring synchronous radio links; and the wireless network controller switches the terminals into the targeted high-speed downlink shared-channel cell through a process command of reconfiguring physical channels. The method provided by the present invention is a good supplement for the prior protocol.

Description

technical field [0001] The present invention relates to the field of the third generation mobile communication, in particular to a TD-SCDMA (TimeDivision-Synchronization Code Division Multiple Access, Time Division Synchronization Code Division Multiple Access) system in the same node B, a high-speed downlink shared channel handover method between cells . Background technique [0002] TD-SCDMA system and WCDMA (Wide Code Division Multiple Access, wideband synchronous code division multiple access) can well support asymmetric services, which is very effective in meeting the ever-increasing data service demands of mobile communication users. HSDPA (High Speed ​​Downlink Packet Access) technology is a technology that provides high-speed downlink data services for multiple users, and can be used to meet packet services with burst characteristics in the downlink, such as streaming data services and interactive applications. The HSDPA service is implemented in Node B (Node B) to ...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04L12/56H04W36/08H04W36/24
Inventor 周天才李姣汪孙节马志锋
Owner ZTE CORP
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