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Method for dispatching group data transmission

A technology for data transmission and scheduling grouping, applied in the field of mobile communications, and can solve problems such as service fairness among users that affect system throughput

Inactive Publication Date: 2009-10-14
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The purpose of the present invention is to provide a method for scheduling packet data transmission, to overcome the shortcomings of the existing packet scheduling method that will seriously affect the system throughput and service fairness between users, so that the system can meet the requirements of a certain packet loss rate Under the premise of maximizing cell throughput

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  • Method for dispatching group data transmission
  • Method for dispatching group data transmission
  • Method for dispatching group data transmission

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Embodiment Construction

[0054]The core of the present invention is that RNC configures the packet loss timers of each priority queue according to the priority of the service, comprehensively considers the time delay constraints of user data packets, channel conditions and buffer data volume information, and performs a process on the priority queues of each user. Scheduling, so that the user priority queue whose waiting time is closer to the value of the corresponding packet loss timer, the channel condition is better, and the buffer data volume is closer to the buffer size has a higher scheduling priority. Therefore, a reasonable compromise is obtained between the cell throughput and the user MAC-hs packet loss rate, and the cell throughput is maximized as much as possible on the premise of ensuring that the packet loss rate is lower than a certain threshold.

[0055] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0056...

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Abstract

The invention discloses a method for scheduling packet data transmission, which includes the steps of: determining the scheduled priority queue according to the delay constraint of user data packets, channel conditions and buffer data volume information; estimating that a scheduling period can be in the corresponding transmission direction above is the maximum amount of data transmitted by the scheduled user; allocate code channel resources for the scheduled user in the corresponding transmission direction according to the maximum data amount; transmit data for the scheduled user through the allocated code channel resources. By using the invention, the system can maximize the throughput of the cell under the premise of meeting a certain packet loss rate requirement.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method for scheduling packet data transmission. Background technique [0002] In order to meet the increasing demand for data services, 3GPP Release 5 (Third Generation Partnership Project Release 5) introduced HSDPA (High Speed ​​Downlink Packet Access) technology to increase the data transmission rate in the downlink direction. HSDPA technology is applicable to three different modes of WCDMA FDD (Wideband Code Division Multiple Access Frequency Division Duplex), UTRA TDD (Universal Terrestrial Radio Access Time Division Duplex) and TD-SCDMA (Time Slot-Synchronous Code Division Multiple Access). In addition, the principle similar to HSDPA is adopted in the uplink direction, and HSUPA (High Speed ​​Uplink Packet Access) technology is introduced in 3GPP Release 6 to increase the data transmission rate in the uplink direction. [0003] The key technologies adopted b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26
Inventor 高卓秦飞
Owner CHINA ACAD OF TELECOMM TECH