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Radio remote unit (RRU) for inter-band carrier polymerization and transmission method thereof

A radio frequency remote unit and carrier aggregation technology, applied in transmission systems, electrical components, etc., can solve problems such as difficult construction, complex engineering construction, and large engineering volume

Active Publication Date: 2018-03-13
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This method involves complex signal external combiners and feeder connections. The actual engineering construction is complex and the project volume is large. For example, a 2T4R 4G standard station requires 12 external combiners and 36 RF jumpers, which is difficult to construct.

Method used

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  • Radio remote unit (RRU) for inter-band carrier polymerization and transmission method thereof
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  • Radio remote unit (RRU) for inter-band carrier polymerization and transmission method thereof

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Embodiment Construction

[0030] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0031] A schematic diagram of an embodiment of the RRU for cross-band carrier aggregation of the present invention is as follows figure 1 shown. Wherein, the first port 101 is used to connect the input port or the input and output port of the additional RRU; the input side of the combiner 102 is respectively connected to the first port and the transceiver of the RRU for cross-band carrier aggregation, and the output side is connected to the second port; The second port 103 is a port for connecting the RRU and the antenna for cross-band carrier aggregation. The additional RRU and the RRU used for cross-band carrier aggregation work in different frequency bands.

[0032] Such an RRU can internally aggregate the signal of the additional RRU and its own signal, so that the common antenna can be realized without an extern...

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Abstract

The invention provides a radio remote unit (RRU) for inter-band carrier polymerization and an uplink / downlink transmission method, wherein the radio remote unit and the uplink / downlink transmission method relate to the field of wireless communication, wherein the RRU for inter-band carrier polymerization comprises the components of a first port which is connected with an input port or an input / output port of an additional RRU, wherein the additional RRU and the RRU for inter-band carrier polymerization work in different frequency bands; and a combiner, wherein the input side of the combiner isconnected with the first port and an RRU transceiver which is used for inter-band carrier polymerization, and the output side is connected with a second port, wherein the second port is the port forconnection between the RRU for inter-band carrier polymerization and an antenna so that the additional RRU and the RRU for inter-band carrier polymerization share the antenna. Therefore the RRC can polymerize the signal of the additional RRU and the self signal at the inner part, thereby realizing antenna sharing without an external combiner. The radio remote unit (RRU) for inter-band carrier polymerization and the uplink / downlink transmission method have advantages of realizing no requirement for complicated feed line connection, reducing construction difficulty and improving construction efficiency.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a remote radio unit and an uplink and downlink transmission method for cross-band carrier aggregation. Background technique [0002] In the cross-band LTE network deployment, it is necessary to add RRU (Radio Remote Unit, radio remote unit) equipment and external combiner equipment. After the two RRUs combine the radio frequency signals through multiple external combiners, Connect to the antenna via a feeder. [0003] This method involves complex signal external combiners and feeder connections. The actual engineering construction is complex and the project volume is large. For example, a 2T4R 4G standard station requires 12 external combiners and 36 RF jumpers, making construction difficult. Contents of the invention [0004] An object of the present invention is to improve the efficiency of cross-band network deployment. [0005] According to one aspect of the present ...

Claims

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Application Information

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IPC IPC(8): H04B1/40H04B1/00
CPCH04B1/0053H04B1/0057H04B1/0067H04B1/40
Inventor 陈建刚李英奇李志军
Owner CHINA TELECOM CORP LTD
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