Redirection indicating method, wireless network controller, access method and user device

A technology for user equipment and wireless networks, applied in access restriction, wireless communication, electrical components, etc., can solve problems such as inability to strictly judge, affect user communication experience, and fail to access the network normally.

Inactive Publication Date: 2013-11-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the RNC may not save the UE's RRC connection history information, it cannot strictly judge whether the UE has just experienced LTE redirection failure, or whether it is a normal RRC access of a general UE
If the RNC then blindly redirects the UE to the LTE network, it is likely to continue to cause the UE to fail to redirect to the LTE. This continuous LTE redirection failure will cause the UE to be unable to access the network normally for a long time, or to obtain the network The wireless bearer service greatly affects the user's communication experience

Method used

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  • Redirection indicating method, wireless network controller, access method and user device
  • Redirection indicating method, wireless network controller, access method and user device
  • Redirection indicating method, wireless network controller, access method and user device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Embodiment 1: The agreed special format is: the first LTE target frequency (DL Carrier frequency) listed in the E-UTRA Target Info is repeated with the last LTE target frequency, that is, the same EARFCN value is taken. If the UE parses this special format, the Pre-Redirection info information element will not be carried in the RRC Connection Request message again. See the implementation steps figure 2 described in, including:

[0084] Step 101: The UE is in an idle state, and initiates an RRC Connection Request, including the cell Pre-Redirection info, and Support of E-UTRA FDD=TRUE; Support of E-UTRA TDD=TRUE.

[0085] Step 102: RNC performs LTE redirection through RRC Connection Reject, wherein E-UTRA Target Info includes LTE frequency points [F1, F2, F3, F1].

[0086] Step 103: The UE fails to be redirected successfully at the LTE target frequency, and the cell selection returns to the UMTS system. According to the standard agreement: Initiate RRC Connection Req...

Embodiment 2

[0088] Embodiment 2: A special format is agreed: the last two LTE target frequency points listed in the E-UTRA Target Info are repeated, that is, the same EARFCN value is taken. If the UE parses this special format, the RRC Connection Request message will carry the Pre-Redirection info information element, but its sub-element Support of E-UTRA FDD is FALSE and Support of E-UTRA TDD The value is FALSE. See the implementation steps image 3 described in, including:

[0089] Step 201: UE is in RRC Cell FACH state in a certain UMTS serving cell, and is performing small data online service.

[0090] Step 202: Due to the requirement of service experience QOS, RNC performs LTE redirection through RRC Connection Release, wherein E-UTRA Target Info includes LTE frequency points [F1, F2, F3, F3].

[0091] Step 203: The UE fails to be redirected successfully at the LTE target frequency, and the cell selection returns to the UMTS system. According to the standard agreement: initiate R...

Embodiment 3

[0095] Embodiment 3: No special format is stipulated, but it is stipulated that if the UE returns to the UMTS system after the first LTE redirection failure, the RRC Connection Request message must carry the Pre-Redirection info information element, but its The value of the sub-cell Support of E-UTRA FDD is FALSE and the value of Support of E-UTRA TDD is FALSE. See the implementation steps Figure 4 described in, including:

[0096] Step 301: UE is in RRC Cell DCH state in a certain UMTS serving cell, and is performing medium data access service.

[0097] Step 302: Due to the requirement of service experience QoS, RNC performs LTE redirection through RRC Connection Release, wherein E-UTRA Target Info includes LTE frequency points [F1, F2, F3, F4].

[0098] Step 303: The UE fails to be redirected successfully at the LTE target frequency, and the cell selection returns to the UMTS system. According to the standard agreement: initiate RRC Connection Request, including cell Pre...

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Abstract

The invention provides a redirection indicating method. The redirection indicating method comprises the steps that a wireless network controller sends redirection information to a user device, and when assigned information in the redirection information is presented in the assigned special format, the user device is indicated not to try second-time LTE redirection after the LTE redirection fails at a time. The invention further provides an access method. The access method comprises the steps that after the LTE redirection fails, when the user device controls an RRC message request to be connected into the UMTS network through wireless resources, the RRC messages indicate that the wireless network controller does not conduct the LTE redirection on the user device any more. The invention further provides the wireless network controller and the user device.

Description

technical field [0001] The present invention relates to a mobile communication system, in particular to a 3GUMTS network control terminal UE redirected from a UMTS (Universal Mobile Telecommunications System, Universal Mobile Communications System) service cell to an LTE (Long Term Evolution, Long Term Evolution) service in a 3GPP family mobile network series After the cell fails, return to the UMTS network for RRC (Radio Resource Control, radio resource control) access method and user equipment again, and a redirection instruction method and radio network controller. Background technique [0002] With the continuous increase in the number of contracted users and user business volume of mobile operators, the construction and deployment scale of their mobile network infrastructure is also expanding, and the width and thickness of wireless coverage are increasing. Taking most mobile operators in Europe as an example, they have successively deployed three mobile network systems...

Claims

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Application Information

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IPC IPC(8): H04W36/14H04W48/16
Inventor 杨立
Owner ZTE CORP
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