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Method for distributing resource in downward grouped data transmission

A technology for allocating resources and grouping data, applied in digital transmission systems, transmission systems, electrical components, etc., can solve the problem of wasting channel code resources, and achieve the effects of improving utilization, increasing the maximum number of users, and saving channel code resources.

Active Publication Date: 2006-10-25
XFUSION DIGITAL TECH CO LTD
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Problems solved by technology

[0018] In view of this, the main purpose of the present invention is to provide a method for allocating resources in downlink packet data transmission, which solves the problem of channel code resources when transmitting signaling and low-speed real-time services due to the use of fixed spreading factors in HS-PDSCH channels. waste problem

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  • Method for distributing resource in downward grouped data transmission
  • Method for distributing resource in downward grouped data transmission
  • Method for distributing resource in downward grouped data transmission

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, specific examples are given below to further describe the present invention in detail.

[0034] The main idea of ​​the present invention is: on the basis of the existing HSDPA technology, increase the HS-PDSCH channel whose spreading factor is greater than 16 and establish the CQI mapping table corresponding to the added HS-PDSCH channel. The base station searches all CQI mapping tables according to the size of the CQI fed back by the UE and the amount of data to be sent, and selects an appropriate channel code resource. When sending low-rate signaling or real-time service data, the base station increases the spreading factor of the channel code used to send the data, so that the allocated channel resources and the amount of sent data maintain a match.

[0035] Figure 5 As shown, the specific method of adding HS-PDSCH channels with a spreading factor greater than 16 and es...

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Abstract

This invention discloses a method for distributing resources in down packet data transmission by increasing HS-PDSCH with the spread-spectrum factors greater than 16 and setting up a corresponding relation between the CQI value corresponding to the increased HS-PDSCH and the transmission block, numbers of the HS-PDSCH channels and a modulation mode including: the base station searches for all corresponding relations based on the CQI value fed back by the UE and the due sent data volume to configure the transmission block, HS-PDSCH channel numbers and a modulation mode for the UE.

Description

technical field [0001] The invention relates to high-speed downlink packet access (HSDPA) technology, in particular to a method for allocating resources in downlink packet data transmission. Background technique [0002] HSDPA is a modulation and demodulation algorithm proposed by 3GPP in the R5 protocol in order to meet the asymmetrical requirements of uplink / downlink data services. It is an important feature of the fifth version of Wideband Code Division Multiple Access (WCDMA) technology. HSDPA mainly adopts key technologies such as adaptive coding and modulation (AMC), fast hybrid automatic retransmission (HARQ) and fast scheduling to improve the downlink packet data rate and reduce delay. [0003] In the WCDMA system, the introduction of HSDPA adds three channels, namely: high-speed physical downlink shared channel (HS-PDSCH) for transmitting user data in the downlink; high-speed physical downlink shared channel (HS-DSCH) for downlink transmission High-speed shared con...

Claims

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Application Information

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IPC IPC(8): H04L1/00
Inventor 张静荣李荣强
Owner XFUSION DIGITAL TECH CO LTD
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