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Method for determining start time of complementary channel

A technology of start time and channel, applied in the field of high-speed packet data service, can solve the problem of large delay range of Abis port, and achieve the effect of improving speed, reducing delay and channel resources

Inactive Publication Date: 2010-06-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, this method of using a fixed empirical value to calculate the start time of the supplementary channel cannot solve the problem that the delay range of the Abis port is relatively large due to different transmissions.

Method used

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  • Method for determining start time of complementary channel
  • Method for determining start time of complementary channel
  • Method for determining start time of complementary channel

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Embodiment Construction

[0016] The method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] Different base station systems and different wireless environments have different air delays, especially for systems with different transmission modes at the Abis interface, the air delays are even more different. The start time of the supplementary channel calculated by the base station system for the mobile terminal should minimize the assignment delay of the supplementary channel and the loss of channel resources and throughput, and maximize the speed of data burst response. This requires that the starting time of the supplementary channel calculated by the base station satisfies the maximum requirement for the mobile terminal to begin demodulation of the supplementary channel immediately after receiving the extended supplementary channel assignment message ESCAM from the base station system.

[0018] The technical scheme of the present invent...

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Abstract

Through synchronous process, using base station wireless link protocol module (WLPM) mobile terminal WLPM obtain bidirectional aerial time delay between WLPM at mobile terminal side and WLPM at base station side in order to determine start time of the supplement channel (SC). Through bidirectional aerial time delay RTT at base station side, based on features of data service and assignation of thesupplement channel, the invention determines most reasonable start time of SC dynamically under condition without changing generic procedure for establishing channels. Thus, the invention reduces delay for assigning SC, channel resources needed, and throughput loss so as to raise speed of paroxysmal response of data.

Description

technical field [0001] The invention relates to the high-speed packet data business field of a CDMA2000 base station system, in particular to a method for determining the starting time of a supplementary channel. Background technique [0002] The CDMA2000 base station system provides high-speed packet data services for mobile terminal users, and the air physical channel carrying the services is an SCH (Supplemental Channel, Supplemental Channel) channel. According to different data transmission directions, the supplementary channel from the base station to the mobile terminal is called the forward supplementary channel, and the supplementary channel from the mobile terminal to the base station is called the reverse supplementary channel. The base station system sends an ESCAM (Extended Supplemental Channel Assignment Message) message to the mobile station to notify the mobile station to follow the reverse supplemental channel start time REV_SCH_START_TIME and forward supplem...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L1/00H04J13/00H04W56/00
Inventor 杨光韩桂鲁宋建全
Owner ZTE CORP