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Control method of user terminal to access into closed user group cell under connection status

A technology for closing user groups and user terminals, which is applied in the field of wireless communication and can solve problems such as cheap billing

Inactive Publication Date: 2009-10-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And, for such a CSG cell, its billing may be cheaper than that of a macro cell

Method used

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  • Control method of user terminal to access into closed user group cell under connection status
  • Control method of user terminal to access into closed user group cell under connection status
  • Control method of user terminal to access into closed user group cell under connection status

Examples

Experimental program
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Effect test

example 1

[0039] Refer to attached image 3, the UE initiates a new call in the macro cell or switches to the macro cell, and obtains the UE's CSG whitelist {TA ID=5, TA ID=6} through the NAS signaling process. Among them, there are 6 CSG micro cells in this macro cell, and the TA ID and PHY ID are as follows: image 3 shown in .

[0040] The UE enters the coverage of CSG Cell#3. When the CSG Cell#3 signal meets the measurement requirements, the UE measures the CSG Cell#3 cell and sends a measurement report to the eNB, carrying the PHY ID of the CSG cell=34.

[0041] According to the reported PHY ID = 34, the eNB knows that the cell to be handed over by the UE is a CSG cell, so it sends a measurement configuration message to the UE, allowing the UE to read the TA ID of the CSG cell from the neighbor cell broadcast message, and determine the CSG Cell according to the TA ID #3 Whether the cell is allowed to access.

[0042] The UE compares the read TA ID=9 with the CSG whitelist {TA ID...

example 2

[0044] The UE initiates a new call in the macro cell or switches into the macro cell, and obtains the UE's CSG whitelist {TA ID=5, TA ID=6} through the NAS signaling process. Among them, there are 6 CSG micro cells in this macro cell, and the TA ID and PHY ID are as follows: image 3 shown.

[0045] The UE enters the coverage of CSG Cell#1. When the CSG Cell#1 signal meets the measurement requirements, the UE measures the CSG Cell#1 cell and sends a measurement report to the eNB, carrying the PHY ID of the CSG cell=34.

[0046] According to the reported PHY ID = 34, the eNB knows that the cell to be handed over by the UE is a CSG cell, so it sends a measurement configuration message to the UE, allowing the UE to read the TA ID of the CSG cell from the neighbor cell broadcast message, and determine the CSG Cell according to the TA ID #3 Whether the cell is allowed to access.

[0047] The UE compares the read TA ID=5 with the CSG whitelist {TA ID=5, TA ID=6} in the whitelist. ...

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Abstract

The invention discloses a control method of a user terminal to access into a closed user group cell under connection status, which comprises the following steps: when the user terminal determines that a cell to be accessed is the closed user group cell, tracking regional address is read from neighboring broadcast messages, and the tracking regional address is compared with a white list of the closed user group cell, if the tracking regional address is in the white list of the closed user group cell, the user terminal is accessed into the closed user group cell, or else rejects the access. The method can realize that the user terminal is accessed into the closed user group cell under the connection status.

Description

technical field [0001] The present invention relates to a cell access method in the field of wireless communication, especially in an LTE (Long Term Evolution, Long Term Evolution) system, a UE (User Terminal) accessing a CSG (Closed Subscriber Group, Closed Subscriber Group) cell in a connected state control method. Background technique [0002] The cellular wireless communication system is mainly composed of terminals, base stations and core network. A network composed of base stations is called RAN (Radio Access Network, radio access network), and is responsible for access layer affairs, such as management of radio resources. Physical or logical connections may exist between base stations according to actual conditions. Such as figure 1 As shown, base station 1 and base station 2 or base station 3, each base station may be connected to one or more core network nodes (Core Network, CN). The core network is responsible for non-access stratum affairs, such as location up...

Claims

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Application Information

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IPC IPC(8): H04W4/08H04W24/10H04W48/02H04W48/16
Inventor 汪孙节杜忠达
Owner ZTE CORP
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