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Digital repeater and downlink signal processing method thereof

A signal processing and repeater technology, applied in the communication between multiple stations, shaping network in transmitter/receiver, baseband system components, etc., can solve pilot pollution, frequency pollution, self-excitation engineering Difficulty in installation and debugging, etc., to achieve the effect of increasing the noise floor, facilitating engineering installation and debugging, and solving the problem of dropped calls

Active Publication Date: 2014-05-21
SHENZHEN HOWAH NETWORK COMM
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  • Description
  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a digital repeater and its downlink signal processing method

Method used

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  • Digital repeater and downlink signal processing method thereof
  • Digital repeater and downlink signal processing method thereof
  • Digital repeater and downlink signal processing method thereof

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Embodiment Construction

[0045] figure 2 It is a structural schematic diagram of a digital repeater according to an embodiment of the present invention. In this embodiment, the digital repeater 200 is set between the base station and the mobile terminal, and the digital repeater 200 includes an uplink and a downlink. The uplink includes a coverage antenna 270, a coverage-side duplexer 260, a donor-side duplexer 220, and a donor antenna 210, and the downlink includes a donor antenna 210, a donor-side duplexer 220, a control circuit 230, a pseudo-pilot, and a pseudo- Synchronization circuit 240 , combiner 250 , overlay duplexer 260 and overlay antenna 270 .

[0046] In the uplink, the donor antenna 210 is connected to the coverage antenna 270 through the donor-side duplexer 220 and the coverage-side duplexer 260 in sequence. The coverage antenna 270 is used to receive the uplink signal transmitted by the mobile terminal and transmit the uplink signal to the duplexer 260 at the coverage end. The dupl...

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Abstract

The invention discloses a digital repeater and a downlink signal processing method thereof. The method comprises the following steps of: S1, receiving a downlink signal transmitted by a base station and separating a downlink radio-frequency signal from the downlink signal; S2, detecting the downlink radio-frequency signal and extracting a base station signal of a base station with highest signal intensity; S3, generating a pseudo-pilot signal and a pseudo-synchronous signal, wherein the pseudo-pilot signal and the pseudo-synchronous signal are respectively the same as a corresponding pseudo-pilot signal and a corresponding pseudo-synchronous signal in the extracted base station signal; S4,combining the pseudo-pilot signal and the pseudo-synchronous signal with the downlink radio-frequency signal to form a selectively amplified downlink radio-frequency signal; and S5, processing the selectively amplified downlink radio-frequency signal and transmitting a processed downlink signal to a mobile terminal. The method reduces pilot pollution, eliminates a self-excitation loop, makes engineering installation and debugging become simpler, and also solves the problem of low call completion rate and handoff drop call.

Description

technical field [0001] The invention relates to the field of wireless repeater system design, in particular to a digital repeater and a downlink signal processing method thereof. Background technique [0002] With the rapid growth of mobile communication services, operators have an urgent need to enhance their respective brand effects, and the corresponding network quality requirements are also increasing. Nowadays, construction projects such as underground residences and road coverage are in full swing. As an effective means of extending network coverage, the repeater still has unlimited potential. For example, repeaters can be used to solve problems such as poor signal of base stations on high floors in urban areas, high call loss rate of mobile phones, and frequent call drops during calls. In the early 1990s, the base station has developed from the original analog base station to digital base station technologies such as GSM and CDMA. However, due to the technical stren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26H04L25/03
Inventor 徐福新章坚武曾惠中姚英彪包建荣许家志
Owner SHENZHEN HOWAH NETWORK COMM
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