Method for transmission of protocol data unit information

A protocol data unit and message technology, applied in electrical components, transmission systems, etc., can solve the problems of mapping information processing delay and delay in downlink transmission of new serving cells, reduce the impact of downlink transmission, simplify signaling process, and solve reliable interconnection. Effect

Inactive Publication Date: 2004-11-24
HUAWEI TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

This method is currently the most accepted, but its problems are: the unsent protocol data unit (PDU) must be forwarded by the radio network controller (RNC) before it can reach the target serving cell; the transmission delay of the Iur / Iub interface and The processing delay of the radio network controller (RNC) on the mapping information will bring obvious lag to the downlink transmission of the new serving cell

Method used

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  • Method for transmission of protocol data unit information
  • Method for transmission of protocol data unit information
  • Method for transmission of protocol data unit information

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail:

[0042] 1) Initial state:

[0043] Figure 1 is a schematic diagram of a transmission structure before a serving cell is changed. On the network side, there are a radio network controller 1 and a radio network controller 2, wherein the radio network controller 1 is the radio network controller to which the mobile station 4 belongs. The radio network controller 1 is connected to the base station 31 and the base station 32 , and the radio network controller 2 is connected to the base station 21 . The members of base station pool (NB-pool) 3 include base station 31 and base station 32 . Each base station governs three cells respectively, wherein cell 311 belongs to base station 31 , cell 321 belongs to base station 32 , and cell 211 belongs to base station 21 . The cell 311 under the jurisdiction of the base station 31 is the current serving cell.

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Abstract

A method for transferring protocol data unit information in IP transfer mode of 3GPP R5 is characterized by a concept of base station pool is created. Two base stations in a base station pool can have a direct link between them for directly forwarding the protocol data units, which are not sent in high-speed medium access control layer, from source service cell to destination cell, so improving the synchronous speed and decreasing the down transmission delay caused by service cell change of HSDPA system.

Description

technical field [0001] The invention relates to wireless communication transmission technology, in particular to a method for transmitting protocol data unit information. Background technique [0002] In the high-speed downlink packet access (HSDPA) technical specification of the fifth version R5 of the 3GPP protocol, the process of moving the high-speed downlink shared channel (HS-DSCH) link that undertakes downlink transmission tasks from one cell to another is called Serving cell change. The cell where the original high-speed downlink shared channel (HS-DSCH) link is located is called the source serving cell, and the cell where the new high-speed downlink shared channel (HS-DSCH) link is located is called the target serving cell. [0003] There are two control ways to change the serving cell, one is controlled by the network, and the other is controlled by the mobile station. Network control is based on the measurement report submitted by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
Inventor 张萍
Owner HUAWEI TECH CO LTD
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