Resource scheduling method, system and equipment in time division duplex high speed downlink packet access (TDD HSDPA) system

A technology of resource scheduling and user equipment, applied in the field of mobile communication, to improve system capacity and transmission rate, save air interface resources, and reduce bit error rate

Active Publication Date: 2010-06-23
CHINA MOBILE GROUP DESIGN INST
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Problems solved by technology

[0007] The present invention provides a resource scheduling method and system for time-division duplex high-speed downlink packet access TDD HSDPA system, which is used to solve the problems existing in the existing resource scheduling mechanism, improve system capacity and transmission rate, reduce bit error rate, and save air interface resource

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  • Resource scheduling method, system and equipment in time division duplex high speed downlink packet access (TDD HSDPA) system
  • Resource scheduling method, system and equipment in time division duplex high speed downlink packet access (TDD HSDPA) system
  • Resource scheduling method, system and equipment in time division duplex high speed downlink packet access (TDD HSDPA) system

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Embodiment Construction

[0029] The embodiment of the present invention improves the imperfection of the resource scheduling mechanism in the existing TDD HSDPA system, and improves the time slot utilization rate of the HS-PDSCH on the premise of ensuring that the coverage capabilities of the HS-SICH and HS-SCCH are basically not affected , improve system capacity and transmission rate, reduce bit error rate, and save air interface resources.

[0030] First, the embodiment of the present invention provides an improved resource scheduling mechanism in the TDD HSDPA system. The basic principle is: according to the characteristics of the TDD mode, the principle of independent time slot control is introduced, and the UE at the terminal side independently reports the CQI of each downlink time slot. The NodeB on the system side performs independent resource scheduling for each downlink time slot according to the CQI of each downlink time slot reported by the UE.

[0031] The embodiment of the present invent...

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Abstract

The invention relates to the technical field of mobile communication, in particular to a resource scheduling technology in a time division duplex high speed downlink packet access (TDD HSDPA) system. The invention provides resource scheduling method and system in the TDD HSDPA system, which are used for improving system capacity and transmission rate, reducing bit error rate, and saving space interface resources. The resource scheduling method comprises the steps of: selecting a modulation and coding mode of each downlink time slot by a base station Node B referring a channel quality indicator (CQI) of each downlink time slot reported by user equipment (UE), wherein the CQI of each downlink time slot is determined by channel quality estimation by the UE according to downlink data received in each downlink time slot; transmitting the modulation and coding mode of each downlink time slot, which is carried in scheduling control information, to the UE by the Node B, wherein the scheduling control information indicates that the UE receives the downlink data; and transmitting the downlink data to the UE within each downlink time slot by the Node B according to the modulation and coding mode of each downlink time slot. The invention also provides a base station and user equipment.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to the resource scheduling technology in the TDD HSDPA system. Background technique [0002] 3GPP (3rd Generation Partnership Project, third-generation mobile communication standardization organization) R5 version introduced HSDPA (High Speed ​​Downlink Packet Access, high-speed downlink packet access) technology, HSDPA technology is suitable for TD-SCDMA (Time Division Synchronized Code Division Multiple Access, time division synchronous CDMA system). HSDPA technology adopts a series of key technologies such as AMC (Adaptive Modulation and Coding, adaptive modulation and coding), HARQ (Hybrid Automatic Repeat Request, automatic hybrid retransmission request), and introduces MAC-hs (media access control sublayer), which can realize the fast scheduling of different UEs (User Equipment, user equipment) by the NodeB, and obtain a higher user peak rate and a cell data thro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/16H04L1/18H04W28/18H04W72/04
Inventor 徐德平贾东燕汤利民赵旭凇汪颖濮伟心刘娜
Owner CHINA MOBILE GROUP DESIGN INST
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