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Dynamic channel adjusting method of the uplink time slot of the time division multiplexing and code division multi-address access system

A code division multiple access and time division multiplexing technology, applied in transmission systems, digital transmission systems, error prevention/detection through transmission repetition, etc., can solve problems such as reducing the overall average delay of services and not reflecting different services. , to achieve the effect of increasing system capacity

Inactive Publication Date: 2007-07-11
ZTE CORP
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Problems solved by technology

However, this adjustment is for all services, and does not reflect the QoS (Quality of Service) requirements of different services; on the other hand, E-DCH uses physical layer hybrid automatic The overall average delay of the business is reduced. For some delay-insensitive services, if the transmission power can be reduced by appropriately increasing the number of retransmissions, the uplink interference can be reduced and the system capacity can be improved.

Method used

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  • Dynamic channel adjusting method of the uplink time slot of the time division multiplexing and code division multi-address access system
  • Dynamic channel adjusting method of the uplink time slot of the time division multiplexing and code division multi-address access system
  • Dynamic channel adjusting method of the uplink time slot of the time division multiplexing and code division multi-address access system

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] A preferred embodiment of the present invention comprises the following steps:

[0036] (1) Set the upper threshold of the number of retransmissions and the lower threshold of the number of retransmissions for each service;

[0037] (2) Setting the upper limit of power offset and the lower limit of power offset for each service;

[0038] (3) A power control shielding timer is set, and a new power offset adjustment is not performed before the power control shielding timer expires, because the adjustment of the power offset needs to reconfigure the base station and the user equipment, so a certain amount of time is required. The adjusted result will be reflected in the radio network controller (RNC) only after a delay of 20 minutes;

[0039] (4) The radio network controller (RNC) starts to receive the E-DCH data frame of the base station (Node B);

[...

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Abstract

This invention discloses one time division complex multi-address interface system time gap dynamic signal channel adjusting method, which comprises the following steps: setting the upper gate and down gate for times for each business; computing each business even repeat times; RNC receives UE data frame and each repeat time; when certain even mixture repeat times is larger than the upper gate, elevating the power; when less than, lowering the power; sending the power bias to base station and user device.

Description

technical field [0001] The invention relates to a dynamic channel adjustment method for an uplink time slot of a time division multiplexing code division multiple access system. Background technique [0002] In a WCDMA communication system, in order to overcome the fading of wireless signals and ensure a certain quality of service, closed-loop power control must be performed. The closed loop power control in WCDMA system is divided into two parts: inner loop power control and outer loop power control. Inner loop power control is carried out in each time slot of the physical channel, which is a fast power control process. The outer loop power control is to set the quality target of the inner loop power control according to the actual transmission quality, which is a slow power control process. Taking the power control in the uplink direction as an example, the closed-loop power control process in the WCDMA system is briefly introduced below. The uplink inner loop power con...

Claims

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Application Information

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IPC IPC(8): H04B7/005H04L1/00H04L1/08
CPCY02D30/70
Inventor 黄明宗永涛
Owner ZTE CORP
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