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Method, system and apparatus for retransmitting data on high speed shared data channel

A shared data channel and data retransmission technology, which is applied in the field of retransmitting data on a high-speed shared data channel, can solve the problems of a large proportion of resources occupied by control signaling and low utilization efficiency of wireless resources, so as to reduce the number and save control Channel overhead, the effect of improving reliability

Active Publication Date: 2009-08-05
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] Embodiments of the present invention provide a method, system, and device for retransmitting data on a high-speed shared data channel to solve the existing problem in the prior art that during HSDPA operations, each time data is retransmitted, it needs to be sent through the HS-SCCH Control signaling, so that the proportion of control signaling in data transmission resources is too large, resulting in the problem of low utilization efficiency of wireless resources

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Embodiment Construction

[0035] In the embodiment of the present invention, the data transmission interval, the number of data retransmissions and the number of signaling retransmissions are set, and the number of signaling retransmissions is smaller than the number of data retransmissions. Since the data transmission interval is set, the base station is fixed every time. The UE only needs to receive the control signaling once through the HS-SCCH, and can determine when to receive the data according to the data retransmission times information in the control signaling, which reduces the HS-SCCH The number of times to send, thus saving the control channel overhead.

[0036] Wherein, the data retransmission times information is the data retransmission times and the retransmission sequence number of the data corresponding to the control signaling, or the remaining data retransmission times.

[0037] For example, the number of signaling retransmissions is 5, and the number of data retransmissions is 10. A...

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Abstract

The embodiment of the invention discloses a method for retransmitting data on a high-speed shared data channel, and a system and a device thereof, solving the problem that when the prior art is utilized for carrying out HSDPA operation, an HS-SCCH is needed for transmitting a control signaling at every time when retransmitting data, thus leading the proportion of occupied resources of the control signaling in data transmission to be overlarge and resulting in low utilization rate of wireless resources. The method comprises the steps as follows: a base station determines moments for retransmitting data according to set data transmission interval time and number of times of data retransmission; moments for retransmitting the control signaling are determined according to set signaling and data transmission interval time as well as the number of times of signaling retransmission, wherein the number of times of signaling retransmission is smaller than that of data retransmission; the control signaling containing the information of the number of times of data retransmission is transmitted by the HS-SCCH according to the determined moments for retransmitting the control signaling; and the data is transmitted by an HS-DSCH according to the determined moments for transmitting the data.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a method, system and device for retransmitting data on a high-speed shared data channel. Background technique [0002] At present, the data transmission method in the High Speed ​​Downlink Packages Access (HSDPA) technology is: the downlink data arrives at the base station (NodeB) and then is scheduled, and the NodeB first transmits data on the High Speed ​​Signaling Control Channel (High Speed ​​Signaling Control Channel, HS-SCCH) to send control signaling, indicating that there is data of the target user equipment (UE) on the subsequent high-speed shared data channel (High Speed-Downlink Shared Channel, HS-DSCH); the target UE according to the control signaling of HS-SCCH, from The data block is received on the HS-DSCH channel, and ACK or NACK information is fed back to the NodeB through a high-speed shared information channel (Shared Information Channel for HS-DSCH, HS-SICH...

Claims

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Application Information

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IPC IPC(8): H04W28/04H04L1/18
Inventor 刘亚伟李晓卡高卓
Owner DATANG MOBILE COMM EQUIP CO LTD
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