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Realization method and realization device for cell reselection

A technology of cell reselection and implementation method, which is applied in the field of communication and can solve the problems of occupying signaling overhead and so on

Active Publication Date: 2010-09-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The present invention is made in consideration of the problem that additional signaling overhead will be occupied when the terminal reselects to a frequency point that does not appear in the dedicated signaling in the related art. Therefore, the main purpose of the present invention is to provide a method for cell reselection Realize method and device, to solve above-mentioned technical problem

Method used

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  • Realization method and realization device for cell reselection
  • Realization method and realization device for cell reselection
  • Realization method and realization device for cell reselection

Examples

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Effect test

example 1

[0063] Such as image 3 As shown, in this example, it is assumed that 3 frequency points are planned in the network, and the dedicated signaling of the original cell (cell A) where the terminal resides is only configured with frequency point F1 and the corresponding priority P is 1, and frequency point F2 and the corresponding priority P are 3, and the system broadcast message in the cell B selected or reselected by the terminal broadcasts the frequency point F1 and the corresponding priority P is 1, and the frequency point F2 and the corresponding priority P is 3 , and the frequency point F3 and the corresponding priority P is 5.

[0064] Assume that the frequency points and priorities ultimately required by the terminal are that F1 has a priority of 3, F2 has a priority of 1, and F3 has a priority of 5. At this time, since the priority of F3 is the same as that of the cell broadcast, it only needs to include the priorities of frequency points F1 and F2 in the dedicated sign...

example 2

[0066] Such as Figure 4As shown, in this example, the terminal obtains the priorities of frequency points F1, F2 and F3 through dedicated signaling in cell A (similar to example 1, F1 corresponds to priority 1, F2 corresponds to priority 3, F3 The corresponding priority is 5). Then, the terminal selects cell C from cell A. When selecting cell C, because the broadcast frequency in cell C and the frequency configured for the terminal coincide with the frequency configured in cell A through dedicated signaling, the terminal does not inherit the new frequency and new frequency priority. However, when the terminal reselects to cell C, because the frequency point F4 broadcast in the system message does not exist in the dedicated frequency points previously known through dedicated signaling (that is, F4 is a new frequency point), the terminal Inherited the priority 7 of frequency point F4 in cell B, which makes it possible for the terminal to reselect cell D on frequency point F4...

example 3

[0069] Such as Figure 5 As shown, in this example, the terminal obtains the priorities of frequency points F1, F2 and F3 through dedicated signaling in cell A of cell LTE (similar to example 1, F1 corresponds to priority 1, and F2 corresponds to priority 3, F3 corresponds to a priority of 5). Then, the terminal selects the cell C of LTE from the cell A. Cell C and cell B of the UTRAN system are adjacent to each other, and the main service of users in cell C is voice service, so the priority of frequency point F4 of the UTRAN system broadcast in cell C is 7. When the terminal selects cell C, it can inherit the priority 7 of the frequency point F4 of the system broadcast message in the cell C, and does not need dedicated signaling to notify the terminal of the priority 7 of the frequency point F4, so that the terminal can not only easily Reselecting to cell B of the UTRAN can also optimize the quality of services performed by the terminal and improve user experience.

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Abstract

The invention discloses a realization method and a realization device for cell reselection. The method comprises that when a terminal selects or reselects a cell, the terminal receives system broadcasting information in the cell and learns the frequency point information of the radio access technology in the cell and the corresponding reselection priority, or other radio access technology information and the corresponding reselection priority; and the terminal conducts cell reselection according to the pre-configured radio access technology information and the corresponding reselection priority, the frequency point information of the additional radio access technology and the corresponding reselection priority learned through the system broadcasting information, or the other radio access technology information and the corresponding reselection priority. By adopting the invention, the problem that additional signaling cost is occupied if frequency point and priority notification is conducted through special signaling in the current stay cell is avoided, the terminal is enabled to learn comprehensive frequency points and the corresponding priority used as a reference for reselection, and the process of the cell reselection is optimized.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a method and device for implementing cell reselection. Background technique [0002] In the cellular mobile communication system, handover and cell reselection are very important components. The process of cell handover and cell reselection will be described below. [0003] Specifically, usually, when a user equipment (User Equipment, referred to as UE for short, also called a user terminal) leaves one cell and enters another cell, the signal received by the terminal from the original cell will become weaker and weaker. , and the incoming cell signal received by the terminal will become stronger and stronger. In order to maintain the quality of the signal received by the terminal, it is necessary to switch the terminal from the base station of the original cell to the base station of the newly entered cell with strong signal. For the terminal in the connected stat...

Claims

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Application Information

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IPC IPC(8): H04W36/08H04W36/30H04W48/10
Inventor 杜忠达黄亚达
Owner ZTE CORP
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