Method for establishing wireless resource control access and wireless network controller

Abstract

This invention discloses a method for setting up radio resource control connection and a radio network controller to reduce the time delay and increase the success rate for setting up the RRC connection, in this invention, after the RNC sends the information for setting up the RRC connection, if the RNC does not receive the information of finishing the RRC connection from said UE in a preset time length, it transmits the information again to the UE, the RNC re-transmits set-up information of the RRC connection based a preset time length till said RNC receives the information of finishing the connection and the re-transmission times reach to the preset numerical values, in which, the product of the preset time length and the preset numerical value is less than the maximum waiting time needed for sending the RRC connection request information again after the failure of the information sent by the UE.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to the establishment of a Radio Resource Control ("RRC") connection in a Wideband Code Division Multiple Access ("WCDMA") system. Background technique [0002] As one of the third-generation mobile communication standards, WCDMA consists of a core network (Core Net, referred to as "CN"), a universal terrestrial radio access network (UMTS Terrestrial Radio Access Network, referred to as "UTRAN") and user equipment (User Equipment, referred to as "UE"). [0003] Wherein, the UTRAN further includes one or several radio network subsystems (Radio Network Subsystem, "RNS" for short). Each RNS is composed of a radio network controller (Radio Network Controller, "RNC" for short) and one or more base station nodes (Node Base Station, "NodeB" for short). Usually, RNC and CN are connected through an Iu interface; NodeB and RNC are connected through an Iub interface; RNCs and RNCs ...

AI Technical Summary

Problems solved by technology

[0013] In practical applications, the above solution has the following problems: the existing RRC access method increases the access delay of the UE and wastes network resources

Since the UE needs to wait for a period of time after each failure to send the RRC connection request message before initiating the RRC connection establishment process again, the time required for the UE to access the network increases for a while, and the increased time is equal to the maximum waiting time, usually 2s, thus increasing Increased UE access delay

[0015] Moreover, the reason why the UE does not receive the RRC connection establishment message is not necessarily that the UTRAN side does not respond, and it may also be because the RRC connection establishment message is lost, which reduces the success rate of the RRC connection establishment

In this case, if the UE sends the RRC connection request message to the UTRAN side again, it is unnecessary and wastes resources on the UTRAN side

Because according to the current practice, the UTRAN side does not perform any uniqueness check on each received RRC connection request message, and allocates resources on the network side according to the agreement, which may lead to repeated allocation of network resources, even if these resources will eventually be released. , still wastes resources for a period of time

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