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Method for ensuring minimum frame missing rate for interoffice route zone updating

A technology of routing area and frame loss rate, which is applied in the direction of digital transmission system, electrical components, error prevention, etc., to achieve the effect of low frame loss rate

Inactive Publication Date: 2009-12-16
ZTE CORP
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Problems solved by technology

[0008] For the non-acknowledged transmission mode, how to ensure the minimum frame loss rate of LLC-UI frames when inter-office routing updates occur, the existing 3GPP TS 23.060 protocol does not make clear regulations

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  • Method for ensuring minimum frame missing rate for interoffice route zone updating
  • Method for ensuring minimum frame missing rate for interoffice route zone updating
  • Method for ensuring minimum frame missing rate for interoffice route zone updating

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Embodiment Construction

[0042] The implementation method of LLC-UI (Logical Link Control Unacknowledged Information) frame number management in each specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] The method for ensuring the minimum frame loss rate for inter-office routing area update of the present invention is particularly related to how to ensure the minimum frame loss rate in the non-acknowledged transmission mode in the GPRS (General Packet Radio Service) communication system, so as to solve the problem of mobile station routing. When data transmission continues to the new office, there is a problem that the LLC (Logical Link Control) layer non-acknowledged data frames may be lost too much.

[0044] In order to solve this technical problem, the method of the present invention provides a kind of method of frame number management to achieve this purpose, and this method is divided into " skip frame " process to u...

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Abstract

The invention discloses a method for ensuring the minimum frame loss rate by updating an interoffice routing area, which includes a frame skipping process of a user plane logic link control non-confirmation information frame and a control plane logic link control non-confirmation information frame number prediction process, The frame skipping process of the user plane logical link control unacknowledged information frame includes: in the unacknowledged data transmission mode of the user plane, after the mobile station performs an inter-office route update, if the mobile station is performing data services or subsequent data processing During service, the new GPRS service support node issues a logical link control non-confirmation information frame. The method of the present invention reduces the frame loss rate on the user plane by applying the frame number prediction method, ensuring the lowest frame loss rate; guarantees no frame loss on the control plane, responds to the signaling of the SGSN quickly, and avoids the mobile station due to failure to obtain The case where the SGSN responds by retransmitting the signaling frame.

Description

technical field [0001] The invention relates to a method for packet data service in a wireless communication system, in particular to a method for ensuring the minimum frame loss rate in the case of routing area changes. Background technique [0002] The GPRS (General Packet Radio Service) communication system of prior art is the system that utilizes GSM circuit switching system to realize packet data service, and GPRS communication system has increased 3 main components on the basis of original GSM circuit switching system: packet control unit (PCU) , GPRS Serving Support Node (SGSN) and GPRS Gateway Support Node (GGSN). GPRS adopts packet switching technology, which can efficiently transmit high-speed or low-speed data and signaling, and optimize the utilization of network resources and wireless resources. [0003] Similar to the location area (Location Area) of the GSM system, the existing GPRS system uses the routing area (Routing Area) to indicate the location informat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L1/00H04L12/56H04L45/02
Inventor 陆光辉于贵智
Owner ZTE CORP
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