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Implementation method and base station of high-speed downlink packet access protocol stack

An implementation method and technology of the protocol stack, which are applied in wireless network protocols, error prevention/detection using return channels, electrical components, etc., can solve problems such as time extension and affect system operation efficiency, so as to reduce delay and improve operation efficiency. Effect

Active Publication Date: 2011-12-14
BEIJING STARPOINT TECH COMPANY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, the delay between the MAC-hs entity and the physical layer is long, which affects the operating efficiency of the system

Method used

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  • Implementation method and base station of high-speed downlink packet access protocol stack
  • Implementation method and base station of high-speed downlink packet access protocol stack
  • Implementation method and base station of high-speed downlink packet access protocol stack

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Embodiment Construction

[0027] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.

[0028] The basic idea of ​​the present invention is to transplant the key module MAC-hs entity in the HSDPA low-level protocol stack to the physical layer from the MAC layer, and apply a new interface mechanism, thereby reducing the time between the MAC-hs entity and the original physical layer module. Delay, improve the operating efficiency of the system.

[0029] image 3 It shows the position of the MAC-hs of the present invention in the protocol stack. Such as image 3As shown, under the framework of the present invention, the MAC-hs entity 31 is a module in the physical layer, and is implemented in a digital signal processing (Digital Signal Processing, DSP) chip together with other modules 34 in the physical layer. The MAC-hs entity 31 and other modules 34 of the physical layer adopt a sha...

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Abstract

The invention discloses a method for realizing an HSDPA protocol stack and a base station. The realization method includes realizing the MAC-hs entity in the physical layer; the MAC-hs entity realizes the communication with other related modules in the physical layer through the way of shared memory. Through the implementation method of the HSDPA protocol stack and the base station of the present invention, the time delay problem is solved, the operation efficiency is improved, and higher throughput is realized. According to the method of the present invention, it can effectively solve the instability problem caused by time delay, limit the time delay of the second layer, reduce data loss and congestion caused by HS-DSCH retransmission, and better adapt to the rapid change of the channel. It is more possible to match the data rate under different wireless channel conditions, and improve the reliability and stability of the system.

Description

technical field [0001] The present invention relates to a high speed downlink packet access (High Speed ​​Downlink Packet Access, HSDPA) technology, in particular to a method for realizing a high speed downlink packet access protocol stack and a base station. Background technique [0002] In order to meet the increasing demand of users for high-speed packet data services, 3GPP introduced HSDPA technology in the TD-SCDMA Version 5 (Release5) specification. HSDPA introduces high-order modulation (for example, 16QAM ), a MAC-hs entity is added in the base station (Node B) for fast scheduling of data, so as to obtain a higher user peak rate and cell data throughput than Release 4. [0003] In essence, HSDPA is a collection of some radio enhancement technologies, and is an important feature of 3GPP Release5 Radio Access Network (Radio Access Network, RAN). Utilizing HSDPA technology can greatly improve the peak rate of downlink data on the basis of 3G existing technology. Comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W80/00H04L29/06H04L1/16
Inventor 唐晓晟张平姜军张治邓钢李亦农唐恬马楠
Owner BEIJING STARPOINT TECH COMPANY