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Method for preventing wireless bearing data missing

A wireless bearer and data loss technology, applied in the field of mobility management, can solve problems such as wireless bearer data loss, and achieve the effects of preventing loss, ensuring service quality, and saving storage capacity

Active Publication Date: 2007-11-14
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] The purpose of the present invention is to provide a method for preventing the loss of radio bearer data, to solve the problem of loss of radio bearer data caused by cell reselection in the UE in the Cell_FACH state in the WCDMA system, and to combine the existing lossless transmission and seamless transmission Advantages, effectively guarantee the service quality of the wireless network to the business; at the same time reduce the consumption of wireless network resources for data backup in lossless transmission, and optimize wireless resource management

Method used

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  • Method for preventing wireless bearing data missing
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  • Method for preventing wireless bearing data missing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment 1: The process in the case where the UE sends the "Suspend Radio Bearer Service Request" message successfully and no radio network controller migration occurs, as shown in Figure 4:

[0067] Step 1: When a cell reselection event occurs in the UE, the RRC layer of the UE sends a "Suspend Radio Bearer Service Request" message to the network side SRNC. The message indicates whether it is an inter-frequency cell reselection and also includes the radio to which the received data belongs. Bearer ID and its PDCP SN number. The message is sent to the lower layer through the dedicated control logic channel of the UE, and then sent to the SRNC of the radio access network through the RACH channel.

[0068] After receiving the "Suspend Radio Bearer Service Request" message sent by the UE, the SRNC of the radio access network indicates whether it is inter-frequency cell reselection according to the information, and considers the reserved cell update processing delay, determin...

Embodiment 2

[0073] Embodiment 2: The UE fails to send the "Request to Suspend Radio Bearer Service" message, and the process of radio network controller migration does not occur, as shown in Figure 5:

[0074] Step 1: When a cell reselection event occurs on the UE side, the RRC layer of the UE sends a message "Suspend Radio Bearer Service Request" to the SRNC on the network side. Radio bearer ID and its PDCP SN number. The message is sent to the lower layer through the dedicated control logical channel of the UE, and then the lower layer starts the random access process. The random access process fails, and the lower layer reports the failure indication to the RRC layer.

[0075] Step 2: The UE releases the connection with the SCCPCH channel carrying the FACH channel in the original cell. In the case of the same frequency cell reselection, the system broadcast message of the target cell can be read first, and then the connection of the SCCPCH physical channel of the original cell can be relea...

Embodiment 3

[0079] Embodiment 3: The process when the UE sends the "Request to suspend radio bearer service" message successfully and the radio network controller relocation occurs, as shown in Figure 6:

[0080] Step 1: When a cell reselection event occurs in the UE, the RRC layer of the UE sends a "Suspend Radio Bearer Service Request" message to the network side SRNC. The message indicates whether it is an inter-frequency cell reselection and also includes the radio to which the received data belongs. Bearer ID and its PDCP SN number. The message is sent to the lower layer through the dedicated control logic channel of the UE, and then sent to the SRNC of the radio access network through the RACH channel.

[0081] After receiving the "Suspend Radio Bearer Service Request" message sent by the UE, the SRNC on the network side indicates whether it is inter-frequency cell reselection according to the information, and considers the reserved cell update processing delay, determines the transmissio...

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Abstract

Using message of Uu port of user device and wireless access network, the method pauses request of wireless bearer services. The method includes steps: when event of reselecting sector occurs, user device sends message of requesting pausing wireless loadbearing services to wireless access network; the user device will start procedure for reselecting sector, and sending message for updating sector no mater it is successful or unsuccessful to send the message. Through wireless access network, after receiving message of requesting pausing wireless loadbearing services, the method backs up wireless loadbearing data dynamically i.e. data are backed up only when UE sector reselection occurs, and data are not backed up at other conditions. Comparing with current lossless transmission method, the invention saves storage capacity for single user. Comparing with wireless network of using simplex seamless transmission, the invention guarantees QoS of carrying services in high layer caused by function for backing up data.

Description

Technical field [0001] The present invention relates to a method for improving the reliability of radio bearer transmission and optimizing radio resource management in the field of wideband code division multiple access (hereinafter referred to as WCDMA), and in particular to a method for mobility management in wireless resource control of a WCDMA system. The method of the invention can be applied to all 3G systems in the field of mobile communication. Background technique [0002] In the prior art WCDMA system, the management of wireless resources is shown in Figure 1, which is a schematic diagram of the Iu port structure. The Iu port is the interface between the core network (CN) and the radio access network (UTRAN), which can be divided into control plane and User plane, the bearer established in the control plane is called signaling radio bearer, which is used to transmit RANAP signaling messages, and the bearer established in the user plane becomes radio access bearer, which...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04W36/02
Inventor 薛林李萍
Owner SANECHIPS TECH CO LTD
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