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Radio base station and scheduling method

一种无线基站、调度方法的技术，应用在无线通信、数字传输系统、防止差错等方向，能够解决其他用户延迟、用户收容数减少、低速率等问题，达到防止用户收容数的减少、避免分组延迟、不会发生通信品质劣化的效果

Inactive Publication Date: 2009-08-05
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, if there is a user with poor channel quality, the user is assigned a low rate and many time slots, so the number of accommodated users decreases as a result, and delays for other users occur

Method used

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  • Radio base station and scheduling method

Examples

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Embodiment Construction

[0073] exist figure 1 In the figure, a VoIP network configuration using 1xEV-DO is shown as a configuration example of a mobile communication network.

[0074] This network mainly includes wired networks such as wireless terminals 101, wireless base stations 102, PCF (Packet Control Function: packet control function) 103, PSDN (Packet Data Serving Node: packet data service node) 104, Internet 105, and SIP server (Session Initiation Protocol Server). : session initiation protocol server) 106.

[0075] exist figure 2 A configuration example of a wireless base station is shown in .

[0076] The radio base station mainly includes an antenna 201 , a duplexer 202 , a radio reception unit 203 , a radio transmission unit 204 , a demodulation unit 205 , a modulation unit 206 , and a radio base station control unit 207 .

[0077] The antenna 201 performs transmission and reception with wireless terminals. The duplexer 202 is used to share the signals of the wireless receiving unit...

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Abstract

The present invention is to accommodate a large number of users required in a digital radio communication system and to prevent communication quality from deteriorating. The present invention is to prevent the occurrence of a delay by adding a process for restricting packet assignment for a call having low communication quality. When the average DRC value is equal to or smaller than a threshold, assigned slots are thinned out to improve communication quality for radio terminals close to cell boundaries and to increase the number of radio terminals accommodated. As a method for thinning out assigned slots, packets received from an upper level unit of a radio base station are, for example, discarded before transmission as long as the lowest limit sound quality is maintained. With this operation, the lowest limit sound quality is ensured.

Description

technical field [0001] The present invention relates to a radio base station and a dispatching method, in particular to a radio base station and a dispatching method for performing packet allocation control according to the radio communication quality of a digital radio communication system. Background technique [0002] In a digital wireless communication system, there is an adaptive rate method as a method for changing a communication speed according to the quality of a radio channel for the purpose of improving frequency utilization efficiency. In such a system, an uplink communication rate, a downlink communication rate, or both of them are selected according to the radio channel quality. [0003] For example, in a system such as 1xEv-DO that adopts an adaptive rate mode in which both the uplink rate and the downlink rate are selected according to the link quality, the selection of the downlink rate is determined by the wireless terminal side based on the downlink link q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04L1/00H04W72/04H04W72/12
CPCH04W72/1231H04W72/0446H04W28/22H04W72/542
Inventor 阿部敦史平良正宪真泽史郎高桥阳介
Owner HITACHI LTD
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