Method and device for realizing physical random switch-in channel transmission time delay under wide covering

A technology of physical random access and transmission delay, which is applied in the direction of selection device, communication between multiple stations, radio/inductive link selection arrangement, etc., and can solve problems such as inability to accurately represent cell coverage

Active Publication Date: 2007-03-07
HUAWEI TECH CO LTD
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Problems solved by technology

[0006] The present invention provides a method and device for realizing transmission delay of physical random access information under wide coverage, so as to solve the problem in the prior art that cell coverage cannot be accurately represented due to transmission delay reporting bit number and quantization accuracy

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  • Method and device for realizing physical random switch-in channel transmission time delay under wide covering
  • Method and device for realizing physical random switch-in channel transmission time delay under wide covering
  • Method and device for realizing physical random switch-in channel transmission time delay under wide covering

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Embodiment Construction

[0042] As shown in Figure 2, according to the existing protocol, after the common channel module in NodeB calculates the transmission delay Tp, it reports to the radio network controller (RNC) in FP format, and the RNC does not care about the actual transmission delay Tp , and send it to the NodeB only when the dedicated information is established, and the dedicated channel module in the NodeB configures the dedicated channel by using the transmission delay.

[0043] Since large sector / cell coverage may be used in the early stage of WCDMA network construction, such as a cell with a maximum radius of 180 kilometers, in order to meet this demand, the present invention changes the quantization precision (or "unit precision") of the transmission time delay Tp ”) or transmission delay to report the number of bits to meet the practical application of large sector coverage.

[0044] For a cell with a radius greater than 60 kilometers, the actual transmission delay of its physical ran...

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Abstract

This invention discloses one realization method covering physical random interface channel time lag, which comprises the following steps: getting real transmission time lag during Node B interface process; using current research area relative transmission time lag message and accuracy to express above real time lag determined by maximum area diameter; Node B sends the transmission time lag into wireless network controller RNC. This invention also discloses one communication device.

Description

technical field [0001] The invention relates to wireless network technology in the field of communication, in particular to a method and device for realizing transmission delay of physical random access information under wide coverage. Background technique [0002] In the FDD system of WCDMA, the one-way transmission delay (Transport propogation, Tp, or Propagation Delay) of the air interface is calculated by the random physical access channel (PRACH) in the NodeB, and its range is 0-255, and the unit is 3chips (code piece). [0003] NodeB transmits the transmission delay to the radio network controller (RNC) in the form of FP packets (Frame Protocak, frame protocol). When establishing a dedicated channel, the RNC can send the transmission delay Tp value reported by the PRACH channel to the NodeB is used to configure the corresponding dedicated channel (during soft handover, the RNC does not configure Tp, and the dedicated channel works in the mode without Tp). [0004] It...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04Q7/38
Inventor 赵建荣
Owner HUAWEI TECH CO LTD
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