Cell reselection method and user equipment

A technology for user equipment and cell reselection, applied in the field of communications, can solve the problems of reducing cell reselection efficiency and wasting wireless resources, and achieves the effect of improving reselection efficiency and saving wireless resources

Active Publication Date: 2013-07-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The UE first needs to reselect to the neighboring cell of the source cell for temporary camping. After the UE completes the analysis of the system information of the neighboring cell where it temporarily camps, it can confirm whether the UE can camp on the neighboring cell. , if the UE cannot camp in the adjacent cell, it needs to return to the source cell to camp. This migration process reduces the efficiency of cell reselection and wastes radio resources

Method used

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  • Cell reselection method and user equipment
  • Cell reselection method and user equipment
  • Cell reselection method and user equipment

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0037] Such as figure 1 As shown, Embodiment 1 of the present invention provides a cell reselection method, and the cell reselection method includes:

[0038] 101. The user equipment UE receives a system message sent by a base station, where the system message includes the domain identifier of the neighboring cell of the source cell accessed by the UE, where the domain identifier is the routing area RA or Location area LA or tracking area TA, the source cell is controlled by the base station, and there is at least one adjacent cell adjacent to the source cell.

[0039] 102. The UE judges whether the domain identifier of the neighboring cell included in the system message belongs to the RA, LA, or TA in the camping forbidden list in the UE.

[0040] 103. If the domain identifier of the neighboring cell belongs to the RA, LA, or TA in the camping prohibited list in the UE, keep the UE camping on the source cell.

[0041] It should be noted that the LA location area is the conc...

Embodiment 2

[0051] Such as figure 2 As shown, Embodiment 2 of the present invention provides a cell reselection method, the method comprising:

[0052] 201. The user equipment UE receives a system message sent by the base station, where the system message includes measurement information of at least one neighboring cell of the source cell accessed by the UE, a network identification number PLMNID, and a domain identifier, where the domain identifier is the routing area RA, location area LA, or tracking area TA of the adjacent cell, the source cell is controlled by the base station, and there is at least one adjacent cell adjacent to the source cell.

[0053] 202. The UE measures the neighboring cell according to the measurement information, and acquires the signal quality of the neighboring cell.

[0054] 203. According to the PLMNID, select a cell from the adjacent cells that belongs to an equivalent operator as the source cell and has a signal quality better than the source cell as th...

Embodiment 3

[0061] This embodiment provides a cell reselection method, such as image 3 As shown, the method includes:

[0062] 301. A user equipment UE receives system information sent by a base station.

[0063] Wherein, the system message includes: the network identification number PLMNID of the adjacent cell of the source cell accessed by the UE, measurement information, and a domain identifier, wherein the domain identifier is the routing area RA or location area of ​​the adjacent cell LA or tracking area TA, the source cell is controlled by the base station, and there is at least one adjacent cell adjacent to the source cell, and the measurement information includes cell identity, carrier frequency, UE access cell duration, etc. .

[0064] 302. Determine whether the UE satisfies a camping criterion for camping on a neighboring cell of the source cell. If the UE satisfies the camping criterion for camping on the neighboring cell, perform step 303; if the UE does not meet the campi...

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Abstract

The invention discloses a cell reselection method and user equipment (UE). The method includes the steps of receiving system information through the UE; judging through the UE whether a domain identification of an adjacent cell belongs to an routing area (RA) or a location area (LA) or a tracing area (TA) in a prohibition resident list in the UE or not; and keeping the UE to reside in a source cell if the domain identification of the adjacent cell belongs to the RA or the LA or the TA in the prohibition resent list in the UE, wherein the system information is sent by a base station and includes the domain identification of the adjacent cell of the source cell which is accessed by the UE, the domain identification is the RA or the LA or the TA, the source cell is controlled by the base station, and the number of the adjacent cell is at least one. The cell reselection method and the UE are suitable for conducting reselection between cells through the UE.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a cell reselection method and user equipment. Background technique [0002] 3GPP (The 3rd Generation Partnership Project) is based on the GSM (Global System of Mobile Communication) core network and UTRAN (UMTS Terrestrial Radio Access Network) The LTE (Long Term Evolution, Long Term Evolution) network after 3GPP evolution can co-exist with other existing networks. The simultaneous existence of different networks can provide users with different services according to their needs. Serve. [0003] For example, when a UE (User Equipment, user equipment) camps on the LTE network, the LTE access network will send a system message to the UE, informing the UE of the neighbor cell information of the source cell where the UE is currently camping; The cell performs measurement, and if there is a neighboring cell that meets the reselection criteria, the UE reselects to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/02H04W36/00H04W36/08H04W36/30
CPCH04W36/0061H04W36/08
Inventor 韩鲁峰刘涛
Owner HUAWEI TECH CO LTD
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