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Transmission method of physical common grouped channels with power bias

A channel transmission and power technology, applied in power management, transmission control/equalization, wireless communication, etc., can solve the problems of low access probability, high interference from other users, and poor link comprehensive performance, etc., to achieve good power Control effect, smooth power, effect of reducing interference

Inactive Publication Date: 2003-02-26
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0006] In view of the current transmission process of the physical public packet channel of wideband code division multiple access, the access probability is low, the probability of success is low, the interference to other users is large, and the overall performance of the link is poor.

Method used

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  • Transmission method of physical common grouped channels with power bias
  • Transmission method of physical common grouped channels with power bias
  • Transmission method of physical common grouped channels with power bias

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Embodiment Construction

[0017] see figure 2 As shown, the method idea of ​​the present invention is mainly in the physical common channel, the last successfully accessed access prefix (AP) and collision detection prefix (CD_P), access prefix (AP) and power control prefix (PCP), and A power offset is added between the power control prefix (PCP) and the control part of the message part (Message). Based on the power of the last successfully accessed access prefix, the power offset of the collision detection prefix is ​​defined as c, define the power offset of the first time slot of the power control prefix as , the time slots after the first time slot are adjusted according to the power control, and the power offset from the control part of the message part to the last power control prefix time slot is defined as

[0018] According to the above idea and definition, the physical public packet channel transmission method with power offset of the present invention is to obtain the access prefix sent...

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Abstract

The present invention discloses a transmission method of physical common grouped channels with power bias. In the physical public grouping channel, power bias is added between the access prefix and conflict detection prefix, between the access prefix and power control prefix and between power control prefix and message control part. The method of the present invention can raise the access probability in the transmission process of physical public grouping channel, reduce average access time, reduce interference to other user and raise the comprehensive performance of link.

Description

technical field [0001] The invention relates to a mobile communication system, in particular to a physical public packet channel transmission method with power bias in a wideband code division multiple access communication system. Background technique [0002] In the physical public packet channel of wideband code division multiple access, the physical public packet channel is composed of access prefix (AP), collision detection prefix (CD_P), power control prefix (PCP), and message part (Message). The transmission power of the access prefix is ​​a climbing process: the initial access prefix is ​​transmitted with the estimated value of the open-loop power, and if no downlink confirmation message is received, it is transmitted with the The power bias continues to send the access prefix. When the downlink confirmation message is received, the collision detection prefix is ​​sent with the same power. After receiving the confirmation message, the collision detection prefix is ​...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005
CPCH04W74/08H04W52/325H04W52/50
Inventor 李化加
Owner HUAWEI TECH CO LTD
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