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User access method and applied communication devices for high-speed downlink packet access system

A technology of communication equipment and access method, applied in the field of HSDPA, can solve the problems of increasing transmission delay and packet loss probability, and achieve the effect of ensuring transmission delay and transmission rate, and reducing the probability of packet loss

Inactive Publication Date: 2009-12-23
CHINA ACAD OF TELECOMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] What the present invention aims to solve is the problem in the prior art that the number of connected users is mainly used to judge whether to access a user, which leads to an increase in transmission delay and packet loss probability.

Method used

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  • User access method and applied communication devices for high-speed downlink packet access system
  • User access method and applied communication devices for high-speed downlink packet access system
  • User access method and applied communication devices for high-speed downlink packet access system

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Embodiment Construction

[0071] During packet transmission, QoS is used to measure the transmission delay and packet loss probability of packet data packets. Compared with the total number of connected users in the cell, the service quality information of the connected users can more accurately reflect the current resource usage and load status of the cell. If the quality of service of connected users has dropped to a considerable extent, even if the number of users in the cell is small, it is not appropriate to connect new users to share limited wireless resources.

[0072] On the basis of the prior art, in the present invention, before allocating resources for the HSDPA user requesting access, the detection of the service quality status of the cell is added to determine whether to access the user. Based on a predetermined judgment criterion, if it is considered that the user access causes the service quality loss of the connected user, the user access is denied; otherwise, the user access is allowed...

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Abstract

The invention discloses a user access method of an HSDPA system, which includes: detecting the service quality state of the cell according to the service quality information of the connected user in the cell requested by the HSDPA user; if the service quality state of the cell satisfies the access condition, allocate HSDPA resources for the user requesting access; otherwise, deny access to the user. In the present invention, indicators such as time delay and buffer area data volume directly related to data user service quality are selected as the criteria for user access, and part of the judgment work can be completed by NodeB to reduce the burden of RNC. The invention can reduce the packet loss rate while ensuring the user service quality, and improve user satisfaction.

Description

technical field [0001] The present invention relates to HSDPA (High Speed ​​Downlink Packet Access, High Speed ​​Downlink Packet Access) technology, in particular to a user access method in the HSDPA system and a communication device applied by the method. Background technique [0002] In order to meet the needs of the rapid growth of wireless data services, the 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) R5 specification introduces the HSDPA technology. HSDPA greatly improves the peak rate of downlink data by adopting technologies such as AMC (Adaptive Modulation Coding, Adaptive Modulation Coding), HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request), and high-order modulation. [0003] In the HSDPA system, wireless resources are shared by multiple users. The new features of HSDPA put forward higher requirements on the rationality of the radio resource management strategy, especially the call access control strategy. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04L1/14H04W28/24H04W72/08
Inventor 秦飞王定伟赵瑾波
Owner CHINA ACAD OF TELECOMM TECH
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