Method and system for reelecting and transmitting data for closed user group cell

A technology for cell reselection parameters and closed user groups, which is applied in the field of communication, can solve problems such as service interruption and long time, and achieve the effect of avoiding service interruption and reducing the time used for reading parameters

Inactive Publication Date: 2010-06-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since it takes a long time to read the CSG cell system message, it may cause service interruption for the mobile phone in the service state

Method used

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  • Method and system for reelecting and transmitting data for closed user group cell
  • Method and system for reelecting and transmitting data for closed user group cell
  • Method and system for reelecting and transmitting data for closed user group cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: Set the CSG cell equipment as HNB, the network has been upgraded to support CSG cells, and the terminal is a new mobile phone supporting CSG.

[0035] Currently in the GERAN system, UMTS neighbor cell information is broadcast through a whitelist (white list), that is, the broadcast frequency point and scrambling code combination (UAFRCN, PSC}. In order for the mobile phone to reselect the CSG cell, the network side needs to set the CSG The frequency point information, PCI information, reselection offset information and priority information used by the cell are sent to the mobile phone:

[0036] ①Frequency point information

[0037] Since the deployment of CSG cells is divided into shared and dedicated modes, in non-CSG cells, the network side can send the deployment mode of the closed subscriber group to the terminal, and the mobile phone can automatically record the CSG frequency points that can be accessed . For example, in a GERAN cell, the network si...

Embodiment 2

[0109] Embodiment 2: Setting CSG cell equipment as HENB

[0110] When the CSG cell equipment is HENB, there is no problem of upgrading the network, because the LTE (3G evolution) network itself is a newly deployed network. At the same time, there is no problem of compatibility with old mobile phones, because to support HENB, you must first support LTE, and currently there is no old mobile phone that supports LTE, so it must be a new mobile phone that supports HENB access.

[0111] At present, in the GERAN system, the information of adjacent cells is broadcast through a Blacklist (black list), that is, only the frequency information and the PCI information for which access is prohibited are broadcast, but the PCI information for which access is permitted is not broadcast. Of course, the method described in Embodiment 1 is also applicable to the HENB cell, and will not be repeated here. Only add a description method for the frequency point information: when considering UM...

Embodiment 3

[0125] Embodiment 3: Set the CSG cell equipment as HNB, the network has been upgraded to support CSG cell, and the mobile phone is an old mobile phone that does not support CSG.

[0126] The equipment in the CSG cell is HNB, and the user's mobile phone cannot support the CSG cell yet, but wants to enjoy the HNB service. At this time, in order to enable the old mobile phone to enjoy HNB service, the frequency point and PCI information of the CSG cell must be broadcast in the neighbor cell list of the non-CSG cell, so that the old mobile phone can regard the CSG cell as equivalent to the non-CSG cell Normal cell access. The offset field can also be set using the offset value of the normal UTRAN cell itself. That is to say, in order to be compatible with old mobile phones, even if it is an upgraded network, it is necessary to add the frequency point, PCI and offset information of the CSG cell to the original UTRAN neighbor cell information. And at this time, because the ori...

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Abstract

The embodiment of the invention discloses a method and a system for reelecting and transmitting data for a closed user group cell and relates to the field of communication, solving the problem that service interruption is probable to cause because the time for acquiring and reselecting parameters for a terminal in an in-service state is longer. The invention adopts the specific scheme that frequency point information used for reselecting of a closed user group cell and the start-stop range of a physical layer cell identification are sent to the terminal by a network in an unclosed user group cell. The invention is used for reselecting the closed user group cell by the terminal.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and system for reselecting closed subscriber group cells and transmitting parameters. Background technique [0002] HNB (Home NodeB third-generation digital communication home base station) / HENB (Home eNodeB third-generation partnership plan long-term evolution home base station) is a small home base station, which is purchased by ordinary users and installed by themselves. Coverage issues, or provide higher rate data services. Here, one HNB / HENB can cover a small area, or multiple HNBs / HENBs can cover a larger area. For example, an enterprise can use multiple HNBs / HENBs to cover the entire factory area, and at the same time, all employees of the factory can access These HNB / HENB. [0003] A CSG (closed subscriber group) cell refers to a small network that covers a limited area and serves a specific group of users, so it is called a closed subscriber group. Only users belongi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04B7/15H04L12/28
Inventor 赵旸王济勇
Owner HUAWEI TECH CO LTD
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