Carrier resource process method based on multi-carrier high speed downlink block access system
An access system and resource processing technology, which is applied in the field of carrier resource allocation and dynamic scheduling, can solve the problems of low downlink peak rate and can not be well satisfied, and achieves reduction of search, realization of carrier load balancing, optimization of technology and system. Effect
Active Publication Date: 2009-07-22
ZTE CORP
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Problems solved by technology
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 (Time Division Duplex, time division duplex) mode , the theoretical peak rate on a single carrier 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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[0031] see figure 1 As shown, it is a flow chart of the carrier resource processing method of the present invention. The carrier resource allocation and scheduling method in the multi-carrier HSDPA technology provided by the present invention is suitable for a wireless communication system, and the wireless communication system includes a wireless system network side and a user terminal communicating with the network side. The wireless communication system can be WCDMA, TD-SCDMA, and other existing and future wireless communication systems. The TD-SCDMA wireless communication system is taken as an example below for illustration. The TD-SCDMA wireless communication system includes a wireless network controller on the network side, a Node B connected to it, and a user terminal connected to the network side. The method specifically includes the following steps :
[0032] Step 101, the RNC (Radio Network Controller, radio network controller) on the network side and the Node B in...
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The invention discloses a carrier resource processing method based on a multi-carrier high-speed downlink packet access system, which is suitable for a wireless communication system. The method includes: when initially allocating HSDPA resources for a user terminal, the network side of the wireless system allocates N1 for the user terminal HSDPA resources of carriers, and configure the user terminal to use the HSDPA resources on no more than N2 carriers at the same time, and N2 is less than or equal to N1; the wireless system network side sends the configuration information and value N2 of the HSDPA resources of N1 carriers to the user terminal; and In sending HS-DSCH service data, the network side of the wireless system dynamically allocates HSDPA resources for user terminals at each transmission time interval, and allocates HSDPA resources of N3 carriers from N1 carriers to user terminals, and N3 is less than or equal to N2. The method of the invention improves the utilization efficiency and system capacity of the multi-carrier HS-PDSCH physical channel.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to a carrier resource allocation and dynamic scheduling method in multi-carrier HSDPA technology. Background technique [0002] An important feature of the third-generation mobile communication system is the unbalanced traffic volume of the uplink and downlink, and the traffic volume of the downlink will generally be greater than that of the uplink. In response to this requirement, 3GPP (3rd Generation Partnership Project, Third Generation Partnership Project) introduced a High Speed Downlink Packet Access (HSDPA) feature into the 3G specification. In the HSDPA feature, by introducing Adaptive Modulation and Coding (AMC), Hybrid Automatic Retransmission Request (HARQ) technology and related technologies to reduce network processing delay, to provide higher The rate of the downlink packet service is higher, which improves the efficiency of spectrum utilization. [0003] In t...
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IPC IPC(8): H04L5/06
Inventor 张银成马子江马志锋
Owner ZTE CORP