Method, apparatus and system for service data transmission in HSDPA

A technology of business data and data, applied in the field of communication, can solve problems such as heavy network load and low transmission efficiency

Inactive Publication Date: 2009-04-01
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0014] The present invention provides a method, device and system for transmitting service data in HSDPA, which is used to solve the problem of small data packet services such as VoIP in existing HSDPA technology During the transmission of business data, the transmission of excessive control information leads to the problem of overloading the network and low transmission efficiency

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  • Method, apparatus and system for service data transmission in HSDPA
  • Method, apparatus and system for service data transmission in HSDPA
  • Method, apparatus and system for service data transmission in HSDPA

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Embodiment Construction

[0087] In the following, the method for transmitting service data in HSDPA provided by the present invention will be described in detail with specific embodiments in conjunction with the accompanying drawings.

[0088] Since the retransmission may be the redundant information of the service data or the retransmitted redundant information and system bit information, for a simpler and clearer description, it is collectively referred to as "retransmitted service data" hereinafter. And the new data (service data not retransmitted) sent by the NodeB to the UE each time is called "service data transmitted for the first time".

[0089]In the embodiment of the present invention, the existing transmission mechanism is improved, and the synchronous hybrid automatic repeat request mode and the fixed QPSK modulation mode are adopted, and the incremental redundancy version number is preset; the physical resource (time slot code channel information) is passed Radio Resource Control (RRC, Ra...

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Abstract

The invention discloses a method for transmitting service data in HSDPA, a device and a system thereof. UE time slot track is notified to distribute information by high-level signaling, by adopting synchronous mode of hybrid automatic repeat request, permanently adopting incremental redundancy versions of QPSK modulation and predefinition used during different transmission times. A base station only transmits control information including cyclical sequence number of a high-speed shared control channel, size index of transmission blocks and user identifications to UE on a physical control channel in the first transmission of data. Regarding small data packet service, such as transmission of VoIP service, information content of the control information is reduced, and transmission times of the control information during transmitting process can be greatly reduced, therefore, network load is reduced, and transmission efficiency of data of the small data packet service in HSDPA is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method, device and system for transmitting service data in HSDPA. Background technique [0002] With the development of 3G technology, in order to meet the growing needs of multimedia services for high-speed data transmission, the third generation mobile communication cooperation project group (3GPP, 3 rd Generation Partnership Project) announced the High Speed ​​Downlink Packet Access (HSDPA, High Speed ​​Downlink Packet Access) technology. HSDPA technology is an enhanced solution proposed by 3GPP Release 5, which uses adaptive modulation and coding (AMC, Adaptive Modulation and Coding) technology, hybrid automatic repeat request (HARQ, Hybrid Auto Repeat Request) technology, etc. to achieve high throughput of downlink data services High throughput, low latency, and high peak data rates greatly enhance the capabilities of downlink transmissions. [0003] In the prior...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/16H04L27/22
Inventor 邢艳萍周海军胡金玲高卓
Owner DATANG MOBILE COMM EQUIP CO LTD
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