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Method for detecting physical channel energy

A physical channel and detection method technology, applied in the field of physical channel energy detection, can solve the problems of not being able to obtain the performance effect of the communication system, not making full use of Mbit correlation, complex structure, etc., achieving good realizability, simple technical structure, The effect of optimal system performance

Inactive Publication Date: 2010-08-11
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the structure of the technical solution of the prior art 2 is relatively complicated, and this method only calculates the energy of the M / 3 coherent accumulation results, and then performs 3 non-coherent accumulations, and finally combines the accumulated sum with a preset threshold T is compared to detect the energy on the physical channel, but it still does not make full use of the correlation between Mbits, so it cannot get a better performance effect of the communication system

Method used

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  • Method for detecting physical channel energy
  • Method for detecting physical channel energy
  • Method for detecting physical channel energy

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Embodiment Construction

[0034] The present invention provides a physical channel energy detection method, the core of which is: firstly, at the base station side, after descrambling, despreading, deviation correction and decoding of the received signal, the maximum decoding scoring value is obtained; then based on the maximum The decoding score value detects information bits on the physical channel.

[0035] Embodiment provided by the present invention, as shown in Figure 3:

[0036] At the transmitting end, the implementation steps are the same as those of the existing technology, mainly including:

[0037] Firstly, the information bits transmitted by the physical channel are subjected to code word matrix block encoding processing to obtain block-encoded information bits; then the encoded information bits are subjected to spreading and scrambling processing; and then transmitted to the receiving end through the wireless physical channel base station side.

[0038] On the base station side of the r...

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Abstract

This invention relates to a test method for the energy of a physical channel including: obtaining the maximum score of decoding based on the received information bits, then testing if there are information bits on the physical channel based on the score.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for detecting physical channel energy. Background technique [0002] In a wireless communication system, especially in a WCDMA (Wideband Code Division Multiple Access; wideband code division multiple access) system, a physical channel is a carrier for transmitting information bits. During the transmission process of the physical channel, when the information bits transmitted by the physical channel do not contain CRC (Cyclic Redundancy Check; Cyclic Redundancy Check) bits and special pilot bits, the receiver must be able to receive the format of which under certain circumstances is unknown signal, so the receiving end needs to perform blind detection of the signal, that is, to detect whether there are information bits to be sent on the physical channel. [0003] The technical solution of the blind detection technology of the prior art 1 related to the present invention, as sho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26
Inventor 黄心晔许亮曹爱军
Owner HUAWEI TECH CO LTD
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