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Method, terminal and system for realizing cell reselection

A cell reselection and cell technology, applied in wireless communication, electrical components, etc., can solve the problem of lack of cell reselection methods and achieve the effect of cell reselection

Inactive Publication Date: 2009-12-30
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The existing technology only involves the method of cell reselection in a single cell, but when the terminal adopts the dual-cell technology of HSDPA, there is no method of cell reselection

Method used

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  • Method, terminal and system for realizing cell reselection
  • Method, terminal and system for realizing cell reselection
  • Method, terminal and system for realizing cell reselection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one, combine figure 1 Specifically, figure 1 It is a schematic flow chart of Embodiment 1 of the present invention.

[0029] Step 101: Obtain cell quality values ​​including at least the primary serving cell and the secondary serving cell;

[0030] The cell quality value includes the cell signal measurement value; the UE can directly obtain the cell signal measurement value, and can also obtain the cell signal measurement value according to the R criterion; the cell quality value may also include the cell priority, and the cell priority It includes multi-carrier cell priority and paired cell priority;

[0031] A multi-carrier cell is a cell that can provide multi-carrier services, usually in the form of dual cells, such as a primary serving cell and a secondary serving cell, where one cell is called the paired cell of the other.

[0032] Step 102: Select a cell according to the cell quality value.

[0033] The UE can select according to the cell signal me...

Embodiment 2

[0038] Embodiment two, combine figure 2 Detailed description, figure 2 It is a schematic flow chart of Embodiment 2 of the present invention.

[0039] Step 201: A radio link failure occurs in the primary serving cell of the UE, and the UE transitions from the CELL_DCH state to the CELL_FACH state.

[0040] After a radio link failure occurs, the UE and network-side dedicated channels are cleared, and only common channels are reserved, so the CELL_DCH state is changed to the CELL_FACH state.

[0041] Step 202: Obtain cell quality values ​​of the primary serving cell and the secondary serving cell.

[0042] The cell quality value includes a cell signal measurement value. As before, the measurement value can be obtained directly or obtained according to the R criterion.

[0043] Step 203: sort the cell quality values.

[0044] The sorting can be done according to the cell signal measurement values ​​obtained by the R criterion, or according to the cell signal measurement val...

Embodiment 3

[0061] Embodiment three, combine image 3 Detailed description, image 3 It is a schematic flow chart of Embodiment 3 of the present invention.

[0062] Step 301: A radio link failure occurs in the primary serving cell of the UE, and the UE transitions from the CELL_DCH state to the CELL_FACH state.

[0063] After a radio link failure occurs, the UE and network-side dedicated channels are cleared, and only common channels are reserved, so the CELL_DCH state is changed to the CELL_FACH state.

[0064] Step 302: Obtain cell quality values ​​including at least the primary serving cell and the secondary serving cell.

[0065] The cell quality value includes a cell signal measurement value, which can be obtained directly or obtained according to the R criterion.

[0066] Step 303: After sorting the cell quality values, select the cell with the highest ranking to camp.

[0067] The UE sorts the primary serving cell and the secondary serving cell according to a preset sequence or...

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Abstract

The embodiment of the invention discloses a method, a terminal and a system for realizing cell reselection. The method comprises the following steps: obtaining a quality value of a cell which at least comprises a main service cell and an auxiliary service cell; according to the quality value of the cell, selecting the cell; and residing the selected cell. The terminal comprises an obtaining unit for obtaining the quality value of the cell which at least comprises the main service cell and the auxiliary service cell, a selection unit for selecting the cell according to the quality value of the cell and a residence unit for residing the cell selected by the selection unit. The embodiment of the invention enables the terminal to carry out cell reselection when HSDPA double-cell technology is adopted.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method, terminal and system for realizing cell reselection. Background technique [0002] 3GPP (3rd Generation Partnership Project, Third Generation Partnership Project) introduced HSPA (High Speed ​​Packet Access) technology in Release5, which includes HSUPA (High Speed ​​Uplink Packet Access) technology and HSDPA (High Speed ​​Downlink Packet Access, High Speed ​​Downlink Packet Access) technology. [0003] At present, there is a research project aimed at improving the downlink data transmission rate of users when using HSDPA technology. This research project mainly discusses the situation when UE (User Equipment, terminal) and two inter-frequency cells supporting HSDPA perform data communication at the same time. The two inter-frequency cells are usually located under the same antenna of the same base station, and are respectively called the primary ser...

Claims

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Application Information

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IPC IPC(8): H04W36/08
Inventor 马小飞马洁徐小英
Owner SHANGHAI HUAWEI TECH CO LTD
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