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Cell switching method and device

A technology of cell handover and target cell, applied in electrical components, wireless communication, etc., which can solve problems such as complex signaling interaction, handover time delay, etc.

Pending Publication Date: 2021-09-07
SHANGHAI NUFRONT ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional handover scheme in the prior art requires complex signaling interaction between base stations and between base stations and terminals, and the handover delay is relatively long

Method used

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  • Cell switching method and device
  • Cell switching method and device
  • Cell switching method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a cell switching method, such as figure 1 shown, including:

[0040] S1. When the signal parameters of the current serving cell where the terminal is located meet the measurement conditions, neighbor cell measurement is performed to measure the received signal strength of N adjacent cells of the terminal;

[0041] Wherein, N is an integer greater than or equal to 1; specifically, figure 2 Shown is a schematic diagram of the cell switching process of the terminal:

[0042] S11. The terminal receives the periodic broadcast information sent by the source base station, the periodic broadcast information includes neighboring cell bandwidth, channel number, timing advance TA (Timing Advance), and received signal strength indication RSSI (Received SignalStrength Indication);

[0043] The terminal receives the timing advance TA threshold and received signal strength RSSI threshold issued by the source base station;

[0044] The timing advance TA thr...

Embodiment 2

[0072] This embodiment provides a terminal 200 to implement cell handover, such as Figure 5 shown, including:

[0073] In this embodiment, the serving base stations of the source cell and the target cell may be the same or different; that is, the source base station and the target base station in the present invention may be the same base station or different base stations.

[0074] The receiving module 21 is configured to receive periodic broadcast information sent by the source base station of the current serving cell, the periodic broadcast information including neighboring cell bandwidth, channel number, timing advance, and received signal strength information;

[0075] The receiving module 21 is also used for the timing advance TA threshold and the received signal strength RSSI threshold issued by the source base station;

[0076] The timing advance TA threshold and RSSI threshold can be set according to system communication quality requirements.

[0077] The first jud...

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Abstract

The invention discloses a cell switching method and device, and the method comprises the steps: carrying out the measurement of adjacent cells when a signal parameter of a current service cell where a terminal is located meets a measurement condition, and measuring the received signal strength of N adjacent cells of the terminal; determining a cell with the strongest received signal from the N adjacent cells as a to-be-switched target cell; when the received signal strength of the to-be-switched target cell meets the switching condition, carrying out switching, and enabling the terminal to access to the to-be-switched cell. Through the method provided by the invention, the cell switching time can be shortened, and the switching success rate is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a cell switching method and device. Background technique [0002] Handover refers to the function of switching the communication channel of a terminal from one wireless channel to another during the process of mobile communication. During the mobile process, the terminal inevitably moves to the coverage edge of the source base station (cell) or for other reasons, it needs to find and switch to a new base station (or cell). In the communication network, when the user terminal moves from one base station to the coverage of another base station range, cell switching is required to maintain service continuity. The traditional handover solution in the prior art requires complex signaling interaction between base stations and between base stations and terminals, and the handover time delay is relatively long. Contents of the invention [0003] In view of this...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/08H04W74/08
CPCH04W36/0055H04W36/0058H04W36/0085H04W36/08H04W74/0833
Inventor 黄小祥
Owner SHANGHAI NUFRONT ELECTRONICS TECH
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