TD-SCDMA system multi-carrier high-speed downstream packet access realization method

A code division multiple access and time division synchronization technology, applied in the field of mobile communication, can solve the problem of low downlink peak rate, and achieve the effect of improving downlink peak rate, downlink service peak rate, and service rate.

Active Publication Date: 2007-11-28
ZTE CORP
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  • Claims
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AI Technical Summary

Problems solved by technology

However, the TD-SCDMA system in the current 3GPP agreement is a single-carrier system, that is, one cell corresponds to one carrier frequency, and the spectrum width of a single carrier frequency is 1.6M. Since TD-SCDMA adopts a relatively narrow-band TDD method, the theoretical The peak rate can reach 2.8Mbps, and the downlink peak rate that can be provided on a single carrier is relatively low, which cannot well meet the needs of operators for future high-speed packet data services

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  • TD-SCDMA system multi-carrier high-speed downstream packet access realization method

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Embodiment Construction

[0023] As shown in FIG. 1 , it is a schematic flowchart of a method for implementing multi-carrier high-speed downlink packet access in a time division synchronous code division multiple access system according to the present invention, including:

[0024] A multi-carrier cell is established by the network side, and high-speed physical downlink shared channel resources are configured on at least one of the carriers (step 101);

[0025] Allocate high-speed physical downlink shared channel resources on the at least one carrier to user equipments in the cell in a time-division and / or code-division sharing manner (step 102);

[0026] Configure at least one group of high-speed shared control channels and high-speed shared information channels on each carrier configured with the high-speed physical downlink shared channel, wherein a downlink high-speed shared control channel and an uplink high-speed shared information channel are a group (step 103 ) );

[0027] Configure the contro...

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Abstract

The invention discloses a method for realizing downgoing sectionalization switch-in with multi carrier wave and high speed in TD-SCDMA system. The invention includes equipping HS-PDSCH on multi carrier wave in the multi carrier wave district, one UE can be allocated with a plurality of HS-PDSCH on multi carrier wave; MAC-HS splits downgoing data of each UE and sends out them, MAC-HS of UE will receive data from multi carrier and merges data; node B and the HARQ that's equal with UE will separately process HARQ protocol from multi carrier wave, every HARQ can process a plurality HARQ threads and marked with carrier wave and thread number; on each carrier wave with HS-PDSCH is allocated with corresponding HS-SCCH and HS-SICH channel; the HS-PDSCH physical channel related controlling information is transferred on a group of HS-SCCH and HS-SICH on the same carrier wave.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for realizing multi-carrier high-speed downlink packet access in a Time Division Synchronization Code Division Multiple Access (TD-SCDMA) system. Background technique [0002] An important feature of the third-generation mobile communication system is the unbalanced traffic on the uplink and downlink, and the traffic on the downlink will generally be larger than the traffic on the uplink. In response to this demand, 3GPP (3rd Generation Partnership Project, third-generation cooperation scheme) introduced HSDPA (High Speed ​​Downlink Packet Access, high-speed downlink packet access) feature into the 3G specification. [0003] In the HSDPA feature, by introducing AMC (Adaptive Modulation and Coding), HARQ (Hybrid Automatic Retransmission Request, Hybrid Automatic Retransmission Request) technology and related technologies to reduce network processing delay, to provide h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04L1/18
Inventor 张银成马子江杨学君马志锋
Owner ZTE CORP
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