CN107800460A - For the radio frequency remote unit RRU and transmission method across frequency range carrier aggregation - Google Patents

For the radio frequency remote unit RRU and transmission method across frequency range carrier aggregation Download PDF

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Publication number
CN107800460A
CN107800460A CN201610791301.XA CN201610791301A CN107800460A CN 107800460 A CN107800460 A CN 107800460A CN 201610791301 A CN201610791301 A CN 201610791301A CN 107800460 A CN107800460 A CN 107800460A
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China
Prior art keywords
rru
frequency range
carrier aggregation
port
additional
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CN201610791301.XA
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CN107800460B (en
Inventor
陈建刚
李英奇
李志军
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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Priority to CN201610791301.XA priority Critical patent/CN107800460B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0067—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

The present invention proposes a kind of radio frequency remote unit RRU and uplink and downlink transmission method being used for across frequency range carrier aggregation, is related to wireless communication field.Wherein, it is of the invention to be used to include across the RRU of frequency range carrier aggregation：First port, connects additional RRU input port or input/output port, and additional RRU is operated in different frequency range with being used for across the RRU of frequency range carrier aggregation；Combiner, input side connects first port and the transceiver for the RRU across frequency range carrier aggregation respectively, outlet side connects second port, and second port is for across the port that the RRU of frequency range carrier aggregation be connected with antenna, to add RRU and to be used for the RRU common antenna across frequency range carrier aggregation.Such RRU, which can internally realize additional RRU signal with its own signal, to be polymerize, and common antenna can be achieved without external combiner, and the feeder line without complexity connects, and reduces difficulty of construction, improves efficiency of construction.

Description

For the radio frequency remote unit RRU and transmission method across frequency range carrier aggregation
Technical field
The present invention relates to wireless communication field, particularly it is a kind of be used for across frequency range carrier aggregation Remote Radio Unit and Downlink transmission method.
Background technology
In the deployment of LTE network across frequency range, RRU (Radio Remote Unit, Remote Radio Unit) equipment need to be increased newly And external combiner equipment, two RRU, after radiofrequency signal combining, day are connected to by feeder line by multiple external combiners Line.
Such mode is related to the external combining of sophisticated signal and connected with feeder line, and Practical Project construction is complicated, and quantities is big, If 2T4R 4G standard stations are, it is necessary to 12 external combiners and 36 radio frequency wire jumpers, constructional difficulties.
The content of the invention
It is an object of the present invention to improve the efficiency across frequency band network deployment.
According to an aspect of the present invention, a kind of RRU being used for across frequency range carrier aggregation is proposed, including：First port, even The input port or input/output port of attachment plus RRU, additional RRU are operated in difference with being used for across the RRU of frequency range carrier aggregation Frequency range；Combiner, input side connect first port and the transceiver for the RRU across frequency range carrier aggregation respectively, and outlet side connects Connect second port, second port is for across the port that the RRU of frequency range carrier aggregation be connected with antenna, to add RRU and use In the RRU common antenna across frequency range carrier aggregation.
Further, when first port is connected with additional RRU input port, combiner is used for：The second end will be come from Mouthful signal branch, the shunting sign working frequency range in additional RRU and the work frequency for the RRU across frequency range carrier aggregation respectively Section；Shunting sign is sent respectively to first port and transceiver.
Further, when first port is connected with additional RRU input/output port, combiner is used for：The will be come from The signal branch of Two-port netwerk, shunting sign is respectively in additional RRU working frequency range and work for the RRU across frequency range carrier aggregation Make frequency range；Shunting sign is sent respectively to first port and transceiver；With, by from first port and transceiver signal close Second port is sent to behind road.
Further, in addition to：Include the first wave filter, the work frequency of the first wave filter between first port and combiner Section matches with additional RRU.
Further, in addition to：Include the second wave filter, the working frequency range of the second wave filter between combiner and transceiver With for matching across the RRU of frequency range carrier aggregation.
Further, the first wave filter and the second wave filter are bidirectional filter.
Such RRU, which can internally realize additional RRU signal with its own signal, to be polymerize, without external combining Common antenna can be achieved in device, and the feeder line without complexity connects, and reduces difficulty of construction, improves efficiency of construction.
According to another aspect of the present invention, a kind of up path combining method of the RRU for across frequency range carrier aggregation is proposed, Including：For receiving the signal from additional RRU across the RRU of frequency range carrier aggregation, additional RRU is with being used for across frequency range carrier aggregation RRU be operated in different frequency range；By additional RRU signal and the letter from the transceiver for the RRU across frequency range carrier aggregation Antenna is sent to after number combining.
Further, in addition to：After the signal from additional RRU is received, filtered in additional RRU working frequency range Ripple, perform additional RRU signal afterwards with being sent out after the signal combining of the transceiver for the RRU across frequency range carrier aggregation The step of toward antenna.
Further, in addition to：By the signal from transceiver in the working frequency range for the RRU across frequency range carrier aggregation Filtering, the step of execution antenna is sent to after additional RRU signal and the signal combining from transceiver afterwards.
By such method, can inside RRU by the signal from additional RRU and its own signal combining after be sent to day Line, realizes additional RRU and itself common antenna sends signal, and without external combiner, feeder line connection is simple, reduces construction Difficulty, improve efficiency of construction.
According to a further aspect of the invention, a kind of descending path combining method of the RRU for across frequency range carrier aggregation is proposed, Including：The signal branch from antenna, shunting sign are being added into RRU work respectively for the RRU across frequency range carrier aggregation Frequency range and the working frequency range for the RRU across frequency range carrier aggregation, RRU is added with being worked for the RRU across frequency range carrier aggregation In different frequency range；Shunting sign is sent respectively to additional RRU and transceiver for the RRU across frequency range carrier aggregation.
Further, in addition to：Working frequency range of the shunting sign for being sent to additional RRU in additional RRU is filtered, held afterwards The step of row is sent to additional RRU.
Further, in addition to：Transceiver will be sent to filter in the working frequency range for the RRU across frequency range carrier aggregation, The step of being sent to transceiver is performed afterwards.
, can be by the signal from antenna in RRU INSHINs by such method, and the letter for adding RRU will be inputted Number additional RRU is sent to, it is achieved thereby that additional RRU and itself common antenna reception signal, without external combiner, feeder line connects Connect simply, reduce difficulty of construction, improve efficiency of construction.
In addition, according to an aspect of the present invention, propose a kind of up-downgoing combining of the RRU for across frequency range carrier aggregation Method, including any one being mentioned above are used for the up path combining method across the RRU of frequency range carrier aggregation；With above Any one mentioned is used for the descending path combining method across the RRU of frequency range carrier aggregation.
, can be by the signal from antenna in RRU INSHINs by such method, and the letter for adding RRU will be inputted Number it is sent to additional RRU；Can inside RRU by the signal from additional RRU and its own signal combining after be sent to antenna, so as to Additional RRU and itself common antenna receiving and transmitting signal are realized, without external combiner, feeder line connection is simple, and it is difficult to reduce construction Degree, improves efficiency of construction.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of one embodiment for the RRU across frequency range carrier aggregation of the present invention.
Fig. 2 is the schematic diagram of another embodiment for the RRU across frequency range carrier aggregation of the present invention.
Fig. 3 is the schematic diagram of one embodiment of the application scenarios for the RRU across frequency range carrier aggregation of the present invention.
Fig. 4 is the flow of one embodiment of the up path combining method for the RRU across frequency range carrier aggregation of the present invention Figure.
Fig. 5 is the stream of another embodiment of the up path combining method for the RRU across frequency range carrier aggregation of the present invention Cheng Tu.
Fig. 6 is the flow of one embodiment of the descending path combining method for the RRU across frequency range carrier aggregation of the present invention Figure.
Fig. 7 is the stream of another embodiment of the descending path combining method for the RRU across frequency range carrier aggregation of the present invention Cheng Tu.
Embodiment
Below by drawings and examples, technical scheme is described in further detail.
The schematic diagram of one embodiment for the RRU across frequency range carrier aggregation of the present invention is as shown in Figure 1.Wherein, Single port 101 is used for the input port or input/output port for connecting additional RRU；The input side of combiner 102 connects first respectively Port and the transceiver for the RRU across frequency range carrier aggregation, outlet side connection second port；Second port 103 be for across The port that the RRU of frequency range carrier aggregation is connected with antenna.Additional RRU is operated in difference with being used for across the RRU of frequency range carrier aggregation Frequency range.
Such RRU, which can internally realize additional RRU signal with its own signal, to be polymerize, without external combining Common antenna can be achieved in device, and the feeder line without complexity connects, and reduces difficulty of construction, improves efficiency of construction.Due in RRU Polymerization is realized in inside, compared with the feeder line connection of job site, greatly reduces Insertion Loss, improves signal quality.
In one embodiment, if first port 101 is connected with additional RRU input port, combiner 102 can incite somebody to action Signal branch from second port, shunting sign is respectively in additional RRU working frequency range and for across frequency range carrier aggregation RRU working frequency range；Shunting sign is sent respectively to first port and for the RRU across frequency range carrier aggregation by combiner 102 Transceiver.
Such RRU can be by the internally branch of the signal from antenna, and the signal for inputting additional RRU is sent to attached Add RRU, it is achieved thereby that additional RRU and itself common antenna reception signal, without external combiner, feeder line connection is simple, drop Low difficulty of construction, improves efficiency of construction.
In one embodiment, if first port 101 is connected with additional RRU input/output port, combiner 102 Can be by the signal branch from second port, shunting sign is respectively in additional RRU working frequency range and for across frequency range carrier wave The RRU of polymerization working frequency range；Shunting sign is sent respectively to first port and for across frequency range carrier aggregation by combiner 102 RRU transceiver.Combiner 102 can also will be sent to the second end after the signal combining from first port and transceiver Mouthful.
Such RRU can be by the internally branch of the signal from antenna, and the signal for inputting additional RRU is sent to attached Add RRU；Internally antenna can will be sent to after the signal from additional RRU and its own signal combining, it is achieved thereby that additional RRU With itself common antenna receiving and transmitting signal, without external combiner, feeder line connection is simple, reduces difficulty of construction, improves construction Efficiency.
The schematic diagram of another embodiment for the RRU across frequency range carrier aggregation of the present invention is as shown in Figure 2.Wherein, The 26S Proteasome Structure and Function of first port 201, combiner 202 and second port 203 is similar to Fig. 1 embodiment.For across frequency range The RRU of carrier aggregation also includes the first wave filter 204, can be to from first port between first port and combiner Signal additional filter working frequency range filtering after be sent to combiner, to from combiner be sent to first port point First port is sent to after the signal filtering of road.
Such RRU performs combining after operation can be filtered to signal, is sent to the operation of additional filter, reduces Influence of noise, improve signal quality.
In one embodiment, the second wave filter 205 is also included for the RRU across frequency range carrier aggregation, positioned at transceiver , can be to the signal from transceiver after being filtered for the working frequency range of the RRU across frequency range carrier aggregation between combiner It is sent to combiner, to being sent to transceiver after the shunting sign for the being sent to transceiver filtering from combiner.
Such RRU performs combining after operation can be filtered to signal, is sent to the operation of transceiver, reduces noise Influence, improve signal quality.
In one embodiment, the first wave filter, the second wave filter are bidirectional filter, so as to ensure to uplink and downlink signals Filtering operation can be performed, improves signal quality.
Schematic diagram such as Fig. 3 institutes of one embodiment of the application scenarios for the RRU across frequency range carrier aggregation of the present invention Show.Wherein, additional RRU is the 2T2R equipment for being operated in 1.8GHz, for being to be operated in 2.1GHz across the RRU of frequency range carrier aggregation 2T2R equipment.Transceiver 301 is 2.1GHz transceiver, and working frequency range is 1920~2170MHz；Gather for across frequency range carrier wave The RRU of conjunction first port ANT1, ANT3 is connected with an input/output port of additional filter respectively, the signal received Frequency range is 1710~1880MHz.First wave filter 302 between first port and combiner 303, working frequency range be 1710~ 1880MHz；For second wave filter between combiner 303 and transceiver 301, working frequency range is 1920~2170MHz.For across frequency The RRU of section carrier aggregation second port ANT2, ANT4 being connected with antenna by feeder line connects with a combiner 303 respectively Connect.
In such application scenarios, across the frequency range polymerization of double 2T2R equipment is realized, in appearance succinctly, without excessively connecing Access point；Investment reduction, including external combiner and a large amount of feeder lines, the cost of wire jumper；Construction is simple, it greatly simplify engineering and apply Work difficulty；Reduce the trouble point for needing to safeguard；The accurate combining of signal is realized inside RRU, reduces Insertion Loss.
In one embodiment, additional RRU can also be the RRU device with single output port such as 2T4R, then with The combiner that the first port of connection Rx ports is connected only carries out descending shunt operation, so as to extend the applied field of the present invention Scape, be advantageous to flexible Application.
In one embodiment, can be using first port, second port and combiner as a combination, according to for across frequency The RRU of section carrier aggregation is matched with additional RRU input, the quantity of input/output port, so as to be advantageous to flexible Application.
The flow chart of one embodiment of the up path combining method for the RRU across frequency range carrier aggregation of the present invention is as schemed Shown in 4.
In step 401, the signal from additional RRU is received for the RRU across frequency range carrier aggregation, wherein, add RRU With for being operated in different frequency range across the RRU of frequency range carrier aggregation.
In step 402, additional RRU signal is used for across frequency range load with coming from for the RRU across frequency range carrier aggregation Antenna is sent to after the signal combining of the RRU of ripple polymerization transceiver.
By such method, can inside RRU by the signal from additional RRU and its own signal combining after be sent to day Line, realizes additional RRU and itself common antenna sends signal, and without external combiner, feeder line connection is simple, reduces construction Difficulty, improve efficiency of construction.Due to realizing polymerization inside RRU, compared with the feeder line connection of job site, greatly reduce Insertion Loss, improve signal quality.
In one embodiment, operation is combined again after the signal from additional RRU can be filtered, so as to carry Height is sent to the signal quality of antenna.
In one embodiment, operation is combined again after the signal from transceiver can be filtered, so as to carry Height is sent to the signal quality of antenna.
The flow chart of another embodiment of the up path combining method for the RRU across frequency range carrier aggregation of the present invention is such as Shown in Fig. 5.
In step 501, the signal from additional RRU is received for the RRU across frequency range carrier aggregation, wherein, add RRU With for being operated in different frequency range across the RRU of frequency range carrier aggregation.
In step 502, working frequency range of the signal from additional RRU in additional RRU is filtered.
In step 503, by the signal from the transceiver for the RRU across frequency range carrier aggregation for being carried across frequency range The RRU of ripple polymerization working frequency range is filtered.
In step 504, by filtered additional RRU signal with being sent out after the filtered signal combining from transceiver Toward antenna.
By such method, multiplex operation is performed after operation can be filtered to signal, reduces influence of noise, carries The high signal quality for being sent to antenna.
The flow chart of one embodiment of the descending path combining method for the RRU across frequency range carrier aggregation of the present invention is as schemed Shown in 6.
In step 601, the signal branch from antenna, shunting sign are distinguished for the RRU across frequency range carrier aggregation In additional RRU working frequency range and working frequency range for the RRU across frequency range carrier aggregation, wherein, add RRU with for across frequency The RRU of section carrier aggregation is operated in different frequency range.
In step 602, for shunting sign to be sent respectively into additional RRU across the RRU of frequency range carrier aggregation and is used for Across the RRU of frequency range carrier aggregation transceiver.
, can be by the signal from antenna in RRU INSHINs by such method, and the letter for adding RRU will be inputted Number additional RRU is sent to, it is achieved thereby that additional RRU and itself common antenna reception signal, without external combiner, feeder line connects Connect simply, reduce difficulty of construction, improve efficiency of construction.
In one embodiment, can be issued to additional RRU shunting sign be filtered after be then forwarded to additional RRU, So as to improve the signal quality for being sent to additional RRU.
In one embodiment, transceiver is then forwarded to after the shunting sign that be sent to transceiver can be filtered, So as to improve the signal quality for being sent to transceiver.
The flow chart of another embodiment of the descending path combining method for the RRU across frequency range carrier aggregation of the present invention is such as Shown in Fig. 7.
In step 701, the signal branch from antenna, shunting sign are distinguished for the RRU across frequency range carrier aggregation In additional RRU working frequency range and working frequency range for the RRU across frequency range carrier aggregation.
In a step 702, it is issued to additional RRU working frequency range filtering of the shunting sign in additional RRU.
In step 703, the entry signal of transceiver will be sent in the work frequency for the RRU across frequency range carrier aggregation Section filtering.
In step 704, filtered shunting sign is sent respectively to additional RRU and for across frequency range carrier aggregation RRU transceiver.
By such method, execution after operating can be filtered to signal and is sent to additional filter, is sent to transceiver Operation, reduce influence of noise, improve signal quality.
The RRU across frequency polymerization of present invention up-downgoing path combining method includes any one the up combining being mentioned above Method and any one descending path combining method.By such method, can by the signal from antenna in RRU INSHINs, And the signal for inputting additional RRU is sent to additional RRU；Can be inside RRU by signal and its own signal from additional RRU Antenna is sent to after combining, it is achieved thereby that additional RRU and itself common antenna receiving and transmitting signal, without external combiner, feeder line connects Connect simply, reduce difficulty of construction, improve efficiency of construction.Due to realizing polymerization inside RRU, connect with the feeder line of job site Connect and compare, greatly reduce Insertion Loss, improve signal quality.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair The spirit of bright technical scheme, it all should cover among the claimed technical scheme scope of the present invention.

Claims (13)

  1. A kind of 1. radio frequency remote unit RRU being used for across frequency range carrier aggregation, it is characterised in that including：
    First port, connects additional RRU input port or input/output port, and the additional RRU is used for across frequency range with described The RRU of carrier aggregation is operated in different frequency range；
    Combiner, input side connects the first port and the transceiver of the RRU for across frequency range carrier aggregation respectively, defeated Going out side connection second port, the second port is used for across the port that the RRU of frequency range carrier aggregation is connected with antenna to be described, with Toilet states additional RRU and the RRU common antenna being used for across frequency range carrier aggregation.
  2. 2. RRU according to claim 1, it is characterised in that
    When the first port is connected with the input port of the additional RRU, the combiner is used for：
    By the signal branch from the second port, the shunting sign working frequency range in the additional RRU and the use respectively In the working frequency range of the RRU across frequency range carrier aggregation；
    The shunting sign is sent respectively to the first port and the transceiver.
  3. 3. the RRU according to claim 2, it is characterised in that
    When the first port is connected with the input/output port of the additional RRU, the combiner is used for：
    By the signal branch from the second port, the shunting sign working frequency range in the additional RRU and the use respectively In the working frequency range of the RRU across frequency range carrier aggregation；The shunting sign is sent respectively to the first port and the receipts Send out device；With,
    The second port will be sent to after signal combining from the first port and the transceiver.
  4. 4. according to the RRU described in claim 1,2 or 3, it is characterised in that also include：
    Include the first wave filter between the first port and the combiner, the working frequency range of first wave filter with it is described Additional RRU matches.
  5. 5. RRU according to claim 4, it is characterised in that also include：
    Include the second wave filter, working frequency range and the use of second wave filter between the combiner and the transceiver Match in across the RRU of frequency range carrier aggregation.
  6. 6. RRU according to claim 5, it is characterised in that first wave filter and second wave filter are two-way Wave filter.
  7. 7. a kind of be used for the up path combining method across the radio frequency remote unit RRU of frequency range carrier aggregation, it is characterised in that including：
    For receiving the signal from additional RRU across the RRU of frequency range carrier aggregation, the additional RRU is used for across frequency range with described The RRU of carrier aggregation is operated in different frequency range；
    By the signal of the additional RRU with being used for from described after the signal combining of the RRU of frequency range carrier aggregation transceiver It is sent to antenna.
  8. 8. according to the method for claim 7, it is characterised in that also include：
    After the signal from the additional RRU is received, it is filtered in the working frequency range of the additional RRU, performs afterwards By the signal of the additional RRU with being used to be sent to after the signal combining of the RRU of frequency range carrier aggregation transceiver from described The step of antenna.
  9. 9. according to the method for claim 8, it is characterised in that also include：
    Signal from the transceiver is used to filter across the RRU of frequency range carrier aggregation working frequency range described, held afterwards It is about to the step of signal of the additional RRU after the signal combining from the transceiver with being sent to antenna.
  10. 10. a kind of be used for the descending path combining method across the radio frequency remote unit RRU of frequency range carrier aggregation, it is characterised in that including：
    Described to be used for the RRU across frequency range carrier aggregation by the signal branch from antenna, shunting sign is respectively in the additional RRU Working frequency range and it is described be used for across frequency range carrier aggregation RRU working frequency range, the additional RRU with it is described be used for across frequency range The RRU of carrier aggregation is operated in different frequency range；
    Shunting sign is sent respectively to the additional RRU and the RRU for across frequency range carrier aggregation transceiver.
  11. 11. according to the method for claim 10, it is characterised in that also include：
    Working frequency range of the shunting sign for being sent to the additional RRU in the additional RRU is filtered, performed afterwards described in being sent to The step of additional RRU.
  12. 12. according to the method for claim 11, it is characterised in that also include：The transceiver will be sent to described to be used for Across the RRU of frequency range carrier aggregation working frequency range filtering, the step of being sent to the transceiver is performed afterwards.
  13. 13. a kind of be used for the up-downgoing path combining method across the radio frequency remote unit RRU of frequency range carrier aggregation, it is characterised in that bag Include any RRU for across frequency range carrier aggregation of claim 7~9 up path combining method；With,
    Any RRU for across frequency range carrier aggregation of claim 10~12 descending path combining method.
CN201610791301.XA 2016-08-31 2016-08-31 Radio Remote Unit (RRU) for cross-frequency band carrier aggregation and transmission method Active CN107800460B (en)

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CN107800459A (en) * 2016-08-31 2018-03-13 中国电信股份有限公司 For the radio frequency remote unit RRU and path combining method across frequency range carrier aggregation
WO2020133225A1 (en) * 2018-12-28 2020-07-02 华为技术有限公司 Signal processing apparatus and method and access network device

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