A method and device for avoiding radio link control rlc reset

Abstract

Embodiments of the present invention disclose a method and device for avoiding wireless link control reset, which relates to the field of communications. By avoiding wireless link control reset, it is helpful to avoid call drop problems caused by inconsistent serial numbers in migration scenarios. The method includes: when the user equipment migrates to the drift wireless network controller, the drift wireless network controller creates a new wireless bearer with the user equipment, sends a land mobile access network mobility message to the user equipment, and at the same time sets the The number of discards of the data protocol data units in the uplink data is 0; the drift wireless network controller receives the uplink data sent by the user equipment and determines whether the uplink data sequence number is 0; it determines whether the number of discards of the data protocol data units exceeds the set value Whether the maximum number of discards and the sequence number of the data protocol data unit are 0. Embodiments of the present invention are applied in the field of communications.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and equipment for avoiding reset of a radio link control RLC. Background technique [0002] In the Universal Mobile Telecommunications System (UMTS) network, each radio link controller (Radio Network Controller, RNC) is responsible for controlling several cells in the UMTS network, and controlling the user equipment residing under these cells (UserEquipment, referred to as UE), and allocate radio link resources for the user equipment. When the user equipment moves from a cell controlled by a radio link controller to a cell controlled by another radio link controller, the serving radio link of the user equipment The road controller will change, and this change process is called the migration of user equipment. [0003] During data transmission during the mutual migration process between radio link controllers, when migrating to a drifting radio link controller, an abnormal migr...

AI Technical Summary

Problems solved by technology

[0005] Since the serial number received by the newly created radio link control entity is not 0, the drifting radio link controller will judge that the serial number carried in the message is illegal at this time, triggering the radio link control reset process, and the maximum radio link configured on the network side The number of link control resets is 1, which will cause an unrecoverable error, resulting in the loss of data information that actually needs to be transmitted, resulting in call drop

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