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Data transmission method, device, user equipment and communication system

A technology for receiving data and channels, applied in the fields of data transmission methods, devices, and communication systems, can solve problems such as time inconsistency, communication interruption, and data loss, and achieve the effect of ensuring normal operation and consistent configuration.

Active Publication Date: 2009-12-30
HUAWEI TECH CO LTD
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Problems solved by technology

[0005] However, since the time for adopting the new configuration between the Node B and the UE is likely to be inconsistent, in general, there will be a delay between the two, which varies from tens of milliseconds to hundreds of milliseconds
During this delay period, communication interruption and data loss may occur between Node B and UE due to configuration incompatibility

Method used

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  • Data transmission method, device, user equipment and communication system
  • Data transmission method, device, user equipment and communication system
  • Data transmission method, device, user equipment and communication system

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Embodiment Construction

[0025] An embodiment of the present invention provides a data transmission method during state transition, such as figure 1 As shown, the method may include:

[0026] Step S101, receiving a radio bearer RB reconfiguration message;

[0027] When the state of the UE transitions, it will receive a RB reconfiguration message from the network side, and the RB reconfiguration message is used to instruct the UE to perform RB reconfiguration and start a downlink synchronization process.

[0028] Step S102, receiving data of the HS-SCCH channel and detecting the channel format of the HS-SCCH.

[0029] This step can be referred to as blind detection for short. That is to say, various HS-SCCH channel formats are used to analyze the information sent by the network side. If the analysis is successful, the HS-SCCH channel format adopted by the network side can be known. The 3GPP R7 protocol defines three HS-SCCH channel formats: HS-SCCH Type 1, HS-SCCH Type 2, and HS-SCCH Type 3.

[0030...

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Abstract

The embodiment of the invention discloses a data transmission method during state transition, which comprises the following steps: receiving a radio bearer (RB) reconfiguration message; receiving the data of a high-speed shared control channel (HS-SCCH) and detecting the channel format of the HS-SCCH; when the channel format of the detected HS-SCCH is different from the channel format of the HS-SCCH which is currently configured, analyzing the HS-SCCH according to the channel format of the detected HS-SCCH and receiving the data. The embodiment of the invention also discloses a device for realizing the method, user equipment (UE comprising the device and a communication system comprising the UE. The embodiment of the invention can solve the problem of failed communication caused by the inconsistency of the configurations of the UE and NodeB before finishing downward synchronization in the process of the state transition of the UE so as to guarantee a normal data transmission of both the UE and the NodeB.

Description

technical field [0001] The present invention relates to the technical field of communication, and more specifically, to a data transmission method, device, user equipment UE and communication system. Background technique [0002] The CELL_FACH enhancement technology is newly added to HSPA+ in the 3GPP (3rd Generation partnership project) R7 version. HSPA+ is the further evolution and enhancement of HSPA (High-speed Packet Access, high-speed packet access), mainly involving in CELL_FACH , CELL_PCH and URA_PCH states support HSDPA (High Speed ​​Downlink Package Access, High Speed ​​Downlink Packet Access) channel reception. [0003] When the cell is established, if the system supports CELL_FACH enhancement, the CELL_FACH state and CELL_PCH state need to be configured in the system message 5 / 5bit to receive the relevant information of the HS-DSCH (High Speed ​​Downlink Shared Channel), the relevant information includes Priority queue, channel code, HARQ (Hybrid Automatic Repea...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04W56/00H04W76/04
CPCH04W28/18H04W28/04
Inventor 张劲林郭房富于江叶环球
Owner HUAWEI TECH CO LTD
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