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Base station subsystem, rbs part and tma part and method for synchronizing rbs part and tma part

A technology of base station subsystem, RBS, applied in the field of radio base station part and tower mounted amplifier part

Inactive Publication Date: 2017-07-18
ERICSSON (CHINA) COMMUNICATION COMPANY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It is an object of exemplary embodiments of the present invention to address at least some of the problems outlined above

Method used

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  • Base station subsystem, rbs part and tma part and method for synchronizing rbs part and tma part
  • Base station subsystem, rbs part and tma part and method for synchronizing rbs part and tma part
  • Base station subsystem, rbs part and tma part and method for synchronizing rbs part and tma part

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Embodiment Construction

[0029] Briefly described, a base station subsystem, a radio base station (RBS) portion of the base station subsystem, and a tower mounted amplifier (TMA) portion for synchronizing the RBS portion with the TMA portion of a communication system employing time division duplex (TDD) are provided. A method in a base station subsystem, a method in an RBS part and a method in a TMA part are provided for synchronizing the RBS part with the TMA part.

[0030] will now refer to figure 1 An exemplary embodiment of such a base station subsystem is described. As shown, figure 1 A base station subsystem 1000 employing TDD is illustrated for synchronizing the RBS part 150 of the base station subsystem 1000 with the TMA part 100 of the base station subsystem 1000 .

[0031] The RBS part 150 comprises an RBS modem 160 adapted to generate switching signals comprising switching command words. The RBS modem 160 is also adapted to send switching signals to the TMA modem 110 of the TMA section 1...

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Abstract

Provided are a base station subsystem (1000), a TMA part (100) and an RBS part (150) of a communication system using TDD and a corresponding method for synchronizing the RBS part of the base station subsystem (1000) with the TMA part (100). The RBS part (150) comprises an RBS modem (160) adapted to generate switching signals comprising switching command words and also to send the switching signals to the TMA modem (110). The TMA modem (110) is adapted to demodulate the switch signal and to compare the switch command word with the switch command word stored in the register. When any switch command word in the register (111) matches the switch command word of the demodulated switch signal, the TMA modem (110) is configured to: generate control signals for controlling the switches of the TMA section in order to synchronize the RBS section (150) with the TMA section.

Description

technical field [0001] The present invention relates generally to synchronization in a communication system, and more particularly to synchronizing the radio base station portion and the tower mounted amplifier portion of a base station subsystem of a communication system. Background technique [0002] A Tower Mounted Amplifier (TMA) is used with a Radio Base Station (RBS) and together they form a Base Station Subsystem in the context of this specification. The TMA includes a Low Noise Amplifier (LNA) mounted physically close to one or more antennas of the base station subsystem. The TMA reduces the base transceiver station noise figure and thus increases its overall sensitivity, in other words the mobile mast is able to receive weak signals. [0003] TMAs used in frequency division duplex (FDD) based systems are typically equipped with a duplexer, which internally separates transmit (TX) and receive (RX) signals. The duplexer provides enough attenuation from transmit to r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W88/08
CPCH04W56/00H04J3/06
Inventor 卢山申勇苏又平张春辉
Owner ERICSSON (CHINA) COMMUNICATION COMPANY LTD