CN111934698B - Radio frequency signal receiving method, radio frequency signal sending method and device - Google Patents
Radio frequency signal receiving method, radio frequency signal sending method and device Download PDFInfo
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- CN111934698B CN111934698B CN201910400286.5A CN201910400286A CN111934698B CN 111934698 B CN111934698 B CN 111934698B CN 201910400286 A CN201910400286 A CN 201910400286A CN 111934698 B CN111934698 B CN 111934698B
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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
- H04B1/06—Receivers
- H04B1/16—Circuits
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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
- H04B1/005—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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- 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
- H04B1/0096—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 where a full band is frequency converted into another full band
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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
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
Abstract
The invention provides a method and a device for receiving and sending radio frequency signals. The method comprises the following steps: after receiving an uplink radio frequency signal sent by a terminal, acquiring a frequency band of the uplink radio frequency signal; judging whether the frequency band of the uplink radio frequency signal is within a preset frequency band range; under the condition that the frequency band of the uplink radio-frequency signal is not within the range of the preset frequency band, adjusting the frequency band of the uplink radio-frequency signal to a target frequency band to obtain an adjusted uplink radio-frequency signal; and receiving the adjusted uplink radio frequency signal through a preset radio frequency remote port. The invention can realize the receiving and sending of multi-band radio frequency signals, does not need to distribute physical RRU interfaces of a plurality of frequency bands, saves the cost of operators and improves the working efficiency of products.
Description
Technical Field
The present invention relates to the field of service processing technologies, and in particular, to a radio frequency signal receiving method, a radio frequency signal sending method, a radio frequency signal receiving apparatus, and a radio frequency signal sending apparatus.
Background
The current RRU (Radio Remote Unit) devices are classified into different types of devices with different frequency bands, for example, types 348D, 348FA, 342E, and the like.
For example, referring to fig. 1, a schematic structural diagram of an internal implementation of an RRU in the prior art is shown. As shown in fig. 1, 1: I/O interface, 2: local oscillator, 3: baseband processing module, 4: digital down converter, 5: digital up-converter, 6: duplexer, 7: DAC, 8: ADC, 9, 10: filter, 11, 12: mixer, 13, 14: filter, 15: intermediate frequency amplifier, 16: low noise amplifier, 17: a power amplifier.
For the RRU shown in fig. 1, for the uplink signal: and directly carrying out actual signal rated filtering, low-noise amplification, further radio frequency small signal amplification filtering and down-conversion on the received mobile terminal uplink signal, then completing analog-to-digital conversion, digital intermediate frequency processing and the like, and finally receiving the uplink signal.
For downlink signals, baseband signals downlink are subjected to actual signal rated frequency conversion and filtering, then subjected to radio frequency filtering and linear power amplifier, and then transmitted to the antenna feeder through sending filtering.
In the prior art, the RRU hardware part is connected to a power amplification module (mainly responsible for amplifying gain) by a hardware main board, and then connected to a non-software-editable filter and a non-software-editable mixer, and finally outputs a radio frequency signal; at present, a plurality of physical RRUs with different frequency bands exist in a coverage scene in the deployment of a base station of a current network to realize signal output of different frequency bands. The current implementation scheme is not beneficial to saving the cost of operators and reduces the working efficiency of products.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a radio frequency signal receiving method, a radio frequency signal sending method, and a radio frequency signal sending device, so as to solve the technical problems that in the prior art, a plurality of physical RRUs with different frequency bands exist in a coverage scene in existing network base station deployment to achieve signal output of different frequency bands, which is not beneficial to saving cost of operators, and reduces working efficiency of products.
In order to solve the above problem, an embodiment of the present invention provides a radio frequency signal receiving method, applied to a radio remote module, including: after receiving an uplink radio frequency signal sent by a terminal, acquiring a frequency band of the uplink radio frequency signal; judging whether the frequency band of the uplink radio frequency signal is within a preset frequency band range; under the condition that the frequency band of the uplink radio-frequency signal is not within the range of the preset frequency band, adjusting the frequency band of the uplink radio-frequency signal to a target frequency band to obtain an adjusted uplink radio-frequency signal; and receiving the adjusted uplink radio frequency signal through a preset radio frequency remote port.
Preferably, the radio remote module includes: the step of adjusting the frequency band of the uplink radio frequency signal to a target frequency band to obtain an adjusted uplink radio frequency signal includes: and adjusting the bandwidth of the uplink radio frequency signal to a target bandwidth by the editable filter, and adjusting the frequency band of the uplink radio frequency signal to the target frequency band by the editable mixer to obtain the adjusted uplink radio frequency signal.
Preferably, after the step of determining whether the frequency band of the uplink radio frequency signal is within a preset frequency band range, the method further includes: and receiving the uplink radio frequency signal through the preset remote radio frequency port under the condition that the frequency band of the uplink radio frequency signal is within the preset range.
In order to solve the above problem, an embodiment of the present invention provides a radio frequency signal sending method, applied to a radio remote module, including: after receiving a downlink radio frequency signal sent by a base station, acquiring a frequency band of the downlink radio frequency signal; judging whether the frequency band of the downlink radio frequency signal is within a preset frequency band range or not; under the condition that the frequency band of the downlink radio frequency signal is not within the preset frequency band range, adjusting the frequency band of the downlink radio frequency signal to a target frequency band to obtain an adjusted downlink radio frequency signal; and sending the adjusted downlink radio frequency signal through a preset radio frequency remote port.
Preferably, the radio remote module includes: the step of adjusting the frequency band of the downlink radio frequency signal to a target frequency band to obtain an adjusted downlink radio frequency signal includes: and adjusting the bandwidth of the downlink radio frequency signal to a target bandwidth by the editable filter, and adjusting the frequency band of the downlink radio frequency signal to the target frequency band by the editable mixer to obtain the adjusted downlink radio frequency signal.
Preferably, after the step of determining whether the frequency band of the downlink radio frequency signal is within a preset frequency band range, the method further includes: and under the condition that the frequency band of the downlink radio frequency signal is within the range of the preset frequency band, receiving the downlink radio frequency signal through the preset radio frequency remote port.
In order to solve the above problem, an embodiment of the present invention provides a radio frequency signal receiving apparatus, applied to a radio remote module, including: the first frequency band acquisition module is used for acquiring the frequency band of an uplink radio frequency signal after receiving the uplink radio frequency signal sent by a terminal; the first frequency band judging module is used for judging whether the frequency band of the uplink radio frequency signal is within a preset frequency band range or not; the first frequency band adjusting module is used for adjusting the frequency band of the uplink radio-frequency signal to a target frequency band under the condition that the frequency band of the uplink radio-frequency signal is not within the range of the preset frequency band, so as to obtain an adjusted uplink radio-frequency signal; and the first adjusting signal receiving module is used for receiving the adjusted uplink radio frequency signal through a preset radio remote port.
Preferably, the radio remote module includes: an editable filter and an editable mixer, wherein the first band adjustment module comprises: and the first frequency band adjusting submodule is used for adjusting the bandwidth of the uplink radio-frequency signal to a target bandwidth by the editable filter and adjusting the frequency band of the uplink radio-frequency signal to the target frequency band by the editable mixer to obtain the adjusted uplink radio-frequency signal.
Preferably, the method further comprises the following steps: and the first radio frequency signal receiving module is used for receiving the uplink radio frequency signal through the preset radio frequency remote port under the condition that the frequency band of the uplink radio frequency signal is within the preset range.
In order to solve the above problem, an embodiment of the present invention further provides a radio frequency signal transmitting apparatus, applied to a radio remote module, including: a second frequency band obtaining module, configured to obtain a frequency band of a downlink radio frequency signal after receiving the downlink radio frequency signal sent by a base station; the second frequency band judging module is used for judging whether the frequency band of the downlink radio frequency signal is within a preset frequency band range or not; a second frequency band adjusting module, configured to adjust the frequency band of the downlink radio frequency signal to a target frequency band to obtain an adjusted downlink radio frequency signal when the frequency band of the downlink radio frequency signal is not within the preset frequency band range; and the second adjusting signal sending module is used for sending the adjusted downlink radio frequency signal through a preset radio frequency remote port.
Preferably, the radio remote module includes: an editable filter and an editable mixer, wherein the second band adjustment module comprises: and the second frequency band adjusting submodule is used for adjusting the bandwidth of the downlink radio-frequency signal to a target bandwidth by the editable filter and adjusting the frequency band of the downlink radio-frequency signal to the target frequency band by the editable mixer to obtain the adjusted downlink radio-frequency signal.
Preferably, the method further comprises the following steps: and the second radio frequency signal sending module is used for receiving the downlink radio frequency signal through the preset radio remote port under the condition that the frequency band of the downlink radio frequency signal is within the preset frequency band range.
Compared with the prior art, the embodiment of the invention has the following advantages:
in the embodiment of the invention, after an uplink radio frequency signal sent by a terminal is received, the frequency band of the uplink radio frequency signal is obtained, the frequency band of the uplink radio frequency signal is adjusted to a target frequency band under the condition that the frequency band of the uplink radio frequency signal is not in a preset frequency band range, the adjusted uplink radio frequency signal is obtained, and the adjusted uplink radio frequency signal is received through a preset remote radio frequency port. The embodiment of the invention adjusts the frequency band of the uplink radio frequency signal, so that the RRU equipment can receive the multi-band radio frequency signal only by distributing a physical RRU interface of one frequency band without distributing physical RRU interfaces of a plurality of frequency bands, thereby saving the cost of operators and improving the working efficiency of products.
And after receiving a downlink radio frequency signal sent by the base station, acquiring the frequency band of the downlink radio frequency signal, adjusting the frequency band of the downlink radio frequency signal to a target frequency band under the condition that the frequency band of the downlink radio frequency signal is not within a preset frequency band range, acquiring an adjusted downlink radio frequency signal, and sending the adjusted downlink radio frequency signal through a preset remote radio frequency port. The embodiment of the invention adjusts the frequency band of the downlink radio frequency signal, so that the multi-band radio frequency signal can be received and sent by the RRU equipment only by distributing a physical RRU interface of one frequency band, and the physical RRU interfaces of a plurality of frequency bands are not required to be distributed, thereby saving the cost of an operator and improving the working efficiency of a product.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a schematic structural diagram of an internal implementation of an RRU in the prior art;
fig. 2 is a flowchart illustrating steps of a radio frequency signal receiving method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an internal implementation of an RRU according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating steps of a method for transmitting radio frequency signals according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an rf signal receiving apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an rf signal transmitting apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Example one
Referring to fig. 1, a flowchart of steps of a radio frequency signal receiving method provided in an embodiment of the present invention is shown, where the radio frequency signal receiving method may be applied to a radio remote unit, and specifically may include the following steps:
step 101: after receiving an uplink radio frequency signal sent by a terminal, acquiring a frequency band of the uplink radio frequency signal.
In the embodiment of the present invention, a Radio Remote Unit (RRU) converts a baseband optical signal into a Radio frequency signal at a Remote end, and amplifies and transmits the Radio frequency signal.
The base station may send the received uplink radio frequency signal to the RRU for processing when receiving the uplink radio frequency signal sent by the terminal.
The RRU can be illustrated as follows with reference to fig. 3.
Referring to fig. 3, a schematic structural diagram of an internal implementation of an RRU according to an embodiment of the present invention is shown. As shown in fig. 3, 1: I/O interface, 2: local oscillator, 3: baseband processing module, 4: digital down converter, 5: digital up-converter, 6: duplexer, 7: DAC, 8: ADC, 15: intermediate frequency amplifier, 16: low noise amplifier, 17: power amplifier, 18, 19: editable filter, 20, 21: editable mixer, 22, 23: the mixer can be edited.
The receiving process for the uplink radio frequency signal may be: and carrying out selective filtering, bandwidth selective processing, low-noise amplification, further radio frequency small signal amplification selective filtering and down-conversion on the received mobile terminal uplink signal according to a software editable technology, then completing analog-to-digital conversion, digital intermediate frequency processing and the like, and receiving the uplink radio frequency signal sent by the terminal through an RRU interface of RRU equipment after the processing.
In the embodiment of the present invention, by changing the non-editable filter and mixer of the internal structure of the RRU into an editable filter and an editable mixer, the frequency band of the uplink radio frequency signal sent by the received terminal can be adjusted, so that the uplink radio frequency signal can be adjusted, and specifically, the following steps will be described in detail.
After the RRU receives the uplink radio frequency signal sent by the terminal, the frequency band where the uplink radio frequency signal is located may be obtained, and step 102 is executed.
Step 102: and judging whether the frequency band of the uplink radio frequency signal is within a preset frequency band range.
After the frequency band of the uplink radio frequency signal is obtained, whether the frequency band of the uplink radio frequency signal is within a preset frequency band range can be judged.
The preset frequency band range is preset according to a frequency band of a radio frequency signal that can be received by an RRU interface set by an RRU device, for example, if the RRU interface can receive a radio frequency signal with a frequency band of B34, the preset frequency band range can be set to B34.
It should be understood that the above examples are only examples for better understanding of the technical solutions of the embodiments of the present invention, and are not to be taken as the only limitation of the embodiments of the present invention.
The preset frequency range may be set according to actual conditions, which is not limited in the embodiment of the present invention.
When the frequency band of the uplink radio frequency signal is within the preset frequency band range, the frequency band of the uplink radio frequency signal does not need to be processed, and specifically, the following preferred embodiments are described in detail.
In a preferred embodiment of the present invention, after the step 102, the method may further include:
step A: and receiving the uplink radio frequency signal through the preset remote radio frequency port under the condition that the frequency band of the uplink radio frequency signal is within the preset range.
In the embodiment of the present invention, when the frequency band of the uplink radio frequency signal is within the preset range, it indicates that the RRU interface of the RRU device can directly receive the uplink radio frequency signal without processing the frequency band of the uplink radio frequency signal.
In the invention, the uplink radio frequency signal can be directly received through the preset RRU port under the condition that the frequency band of the uplink radio frequency signal is in the preset range.
After determining whether the frequency band of the uplink rf signal is within the preset frequency band range, step 103 is executed.
Step 103: and under the condition that the frequency band of the uplink radio-frequency signal is not within the range of the preset frequency band, adjusting the frequency band of the uplink radio-frequency signal to a target frequency band to obtain an adjusted uplink radio-frequency signal.
Under the condition that the frequency band of the uplink radio frequency signal is not within the preset frequency band range, the frequency band of the uplink radio frequency signal can be adjusted to a target frequency band, that is, the frequency band of the uplink radio frequency signal is adjusted to the preset frequency band range, so that the adjusted uplink radio frequency signal can be obtained, for example, the target frequency band is a B34 frequency band, the frequency band of the uplink radio frequency signal is a B38 frequency band, after the uplink radio frequency signal is received, the B38 frequency band of the uplink radio frequency signal can be adjusted to a B34 frequency band, and the RRU interface can receive the uplink radio frequency signal.
The above process can be described in detail with reference to the following preferred embodiments.
In a preferred embodiment of the present invention, the step 103 may include:
and a substep B: and adjusting the bandwidth of the uplink radio frequency signal to a target bandwidth by the editable filter, and adjusting the frequency band of the uplink radio frequency signal to the target frequency band by the editable mixer to obtain the adjusted uplink radio frequency signal.
In an embodiment of the present invention, the RRU may include an editable filter and an editable mixer.
The target bandwidth refers to a bandwidth corresponding to a target frequency band, that is, a waveform of the radio frequency signal.
The editable filter can adjust the bandwidth of the uplink radio frequency signal to a target bandwidth, and the editable mixer can adjust the frequency band of the uplink radio frequency signal to a target frequency band.
After receiving the uplink radio frequency signal sent by the terminal, the editable filter of the RRU device may adjust the bandwidth of the uplink radio frequency signal to a target bandwidth, and the editable mixer adjusts the frequency band of the uplink radio frequency signal to a target frequency band, thereby obtaining the adjusted uplink radio frequency signal.
And under the condition that the frequency band of the uplink radio-frequency signal is not in the preset frequency band range, adjusting the frequency band of the uplink radio-frequency signal to a target frequency band, and executing the step 104 after obtaining the adjusted uplink radio-frequency signal.
Step 104: and receiving the adjusted uplink radio frequency signal through a preset radio frequency remote port.
The preset remote radio port refers to an RRU port of an RRU device, and after performing frequency band adjustment on an uplink radio signal to obtain an adjusted uplink radio signal, the base station may receive the adjusted uplink radio signal through the preset remote port.
The embodiment of the invention adjusts the frequency band of the uplink radio frequency signal, so that the RRU equipment can receive the multi-band radio frequency signal only by distributing a physical RRU interface of one frequency band without distributing physical RRU interfaces of a plurality of frequency bands.
According to the radio frequency signal receiving method provided by the embodiment of the invention, after an uplink radio frequency signal sent by a terminal is received, the frequency band of the uplink radio frequency signal is obtained, and under the condition that the frequency band of the uplink radio frequency signal is not within the range of the preset frequency band, the frequency band of the uplink radio frequency signal is adjusted to the target frequency band, so that the adjusted uplink radio frequency signal is obtained, and then the adjusted uplink radio frequency signal is received through the preset radio remote port. The embodiment of the invention adjusts the frequency band of the uplink radio frequency signal, so that the RRU equipment can receive the multi-band radio frequency signal only by distributing a physical RRU interface of one frequency band without distributing physical RRU interfaces of a plurality of frequency bands, thereby saving the cost of operators and improving the working efficiency of products.
Example two
Referring to fig. 4, a flowchart illustrating steps of a radio frequency signal sending method according to an embodiment of the present invention is shown, where the radio frequency signal sending method may be applied to a radio remote unit, and specifically may include the following steps:
step 201: after receiving a downlink radio frequency signal sent by a base station, acquiring a frequency band of the downlink radio frequency signal.
In the embodiment of the present invention, a Radio Remote Unit (RRU) converts a baseband optical signal into a Radio frequency signal at a Remote end, and amplifies and transmits the Radio frequency signal.
The base station may send the received downlink radio frequency signal to the RRU for processing when receiving the downlink radio frequency signal sent by the base station.
The RRU can be illustrated as follows with reference to fig. 3.
Referring to fig. 3, a schematic structural diagram of an internal implementation of an RRU according to an embodiment of the present invention is shown. As shown in fig. 3, 1: I/O interface, 2: local oscillator, 3: baseband processing module, 4: digital down converter, 5: digital up-converter, 6: duplexer, 7: DAC, 8: ADC, 15: intermediate frequency amplifier, 16: low noise amplifier, 17: power amplifier, 18, 19: editable filter, 20, 21: editable mixer, 22, 23: the mixer can be edited.
The receiving process for the downlink radio frequency signal may be: the baseband signals are subjected to frequency conversion, selective filtering and bandwidth selective processing according to a software editable technology, and are transmitted to the antenna feeder through sending filtering after being subjected to selective frequency mixing, central frequency point selective processing, selective radio frequency filtering and a linear power amplifier.
In the embodiment of the present invention, by changing the non-editable filter and mixer of the internal structure of the RRU into an editable filter and an editable mixer, the frequency band of the downlink radio frequency signal sent by the received terminal can be adjusted, so that the downlink radio frequency signal can be adjusted, and specifically, the following steps will be described in detail.
After the RRU receives the downlink radio frequency signal sent by the base station, the frequency band where the downlink radio frequency signal is located may be obtained, and step 202 is executed.
Step 202: and judging whether the frequency band of the downlink radio frequency signal is within a preset frequency band range.
After the frequency band of the downlink radio frequency signal is obtained, whether the frequency band of the downlink radio frequency signal is within a preset frequency band range can be judged.
The preset frequency band range is preset according to a frequency band of a radio frequency signal that can be received by an RRU interface set by an RRU device, for example, if the RRU interface can transmit a radio frequency signal with a frequency band of B34, the preset frequency band range can be set to B34.
It should be understood that the above examples are only examples for better understanding of the technical solutions of the embodiments of the present invention, and are not to be taken as the only limitation of the embodiments of the present invention.
The preset frequency range may be set according to actual conditions, which is not limited in the embodiment of the present invention.
When the frequency band of the downlink radio frequency signal is within the preset frequency band range, the frequency band of the downlink radio frequency signal does not need to be processed, and specifically, the following preferred embodiments are described in detail.
In a preferred embodiment of the present invention, after the step 202, the method may further include:
and C: and under the condition that the frequency band of the downlink radio frequency signal is within the range of the preset frequency band, receiving the downlink radio frequency signal through the preset radio frequency remote port.
In the embodiment of the present invention, when the frequency band of the downlink radio frequency signal is within the preset range, it indicates that the RRU interface of the RRU device can directly send the downlink radio frequency signal without processing the frequency band of the downlink radio frequency signal.
In the invention, the downlink radio frequency signal can be directly sent through the preset RRU port under the condition that the frequency band of the downlink radio frequency signal is in the preset range.
After determining whether the frequency band of the downlink rf signal is within the preset frequency band range, step 203 is executed.
Step 203: and under the condition that the frequency band of the downlink radio frequency signal is not in the preset frequency band range, adjusting the frequency band of the downlink radio frequency signal to a target frequency band to obtain an adjusted downlink radio frequency signal.
Under the condition that the frequency band of the downlink radio frequency signal is not within the preset frequency band range, the frequency band of the downlink radio frequency signal can be adjusted to a target frequency band, that is, the frequency band of the downlink radio frequency signal is adjusted to the preset frequency band range, so that the adjusted downlink radio frequency signal can be obtained, for example, the target frequency band is a B34 frequency band, the frequency band of the downlink radio frequency signal is a B38 frequency band, after the downlink radio frequency signal is received, the B38 frequency band of the downlink radio frequency signal can be adjusted to a B34 frequency band, and the RRU interface can send the downlink radio frequency signal.
The above process can be described in detail with reference to the following preferred embodiments.
In a preferred embodiment of the present invention, the step 203 may include:
step D: and adjusting the bandwidth of the downlink radio frequency signal to a target bandwidth by the editable filter, and adjusting the frequency band of the downlink radio frequency signal to the target frequency band by the editable mixer to obtain the adjusted downlink radio frequency signal.
In an embodiment of the present invention, the RRU may include an editable filter and an editable mixer.
The target bandwidth refers to a bandwidth corresponding to a target frequency band, that is, a waveform of the radio frequency signal.
The editable filter can adjust the bandwidth of the downlink radio frequency signal to a target bandwidth, and the editable mixer can adjust the frequency band of the downlink radio frequency signal to a target frequency band.
After receiving the downlink radio frequency signal sent by the base station, the editable filter of the RRU device may adjust the bandwidth of the downlink radio frequency signal to a target bandwidth, and the editable mixer adjusts the frequency band of the downlink radio frequency signal to a target frequency band, thereby obtaining the adjusted downlink radio frequency signal.
And in the case that the frequency band of the downlink radio frequency signal is not within the preset frequency band range, adjusting the frequency band of the downlink radio frequency signal to a target frequency band, and after obtaining an adjusted downlink radio frequency signal, executing step 204.
Step 204: and sending the adjusted downlink radio frequency signal through a preset radio frequency remote port.
The preset remote radio port refers to an RRU port of an RRU device, and after performing frequency band adjustment on a downlink radio frequency signal to obtain an adjusted downlink radio frequency signal, the base station may send the adjusted downlink radio frequency signal through the preset remote port.
The embodiment of the invention adjusts the frequency band of the downlink radio frequency signal, so that the RRU equipment only needs to be provided with a physical RRU interface of one frequency band, and the multi-band radio frequency signal can be received and sent.
The radio frequency signal sending method provided by the embodiment of the invention obtains the frequency band of the downlink radio frequency signal after receiving the downlink radio frequency signal sent by the base station, adjusts the frequency band of the downlink radio frequency signal to the target frequency band under the condition that the frequency band of the downlink radio frequency signal is not in the range of the preset frequency band, obtains the adjusted downlink radio frequency signal, and sends the adjusted downlink radio frequency signal through the preset radio remote port. The embodiment of the invention adjusts the frequency band of the downlink radio frequency signal, so that the multi-band radio frequency signal can be received and sent by the RRU equipment only by distributing a physical RRU interface of one frequency band, and the physical RRU interfaces of a plurality of frequency bands are not required to be distributed, thereby saving the cost of an operator and improving the working efficiency of a product.
EXAMPLE III
Referring to fig. 5, a schematic structural diagram of a radio frequency signal receiving apparatus provided in an embodiment of the present invention is shown, where the radio frequency signal receiving apparatus may be applied to a radio remote module, and specifically may include:
a first frequency band obtaining module 310, configured to obtain a frequency band of an uplink radio frequency signal after receiving the uplink radio frequency signal sent by a terminal; a first frequency band determining module 320, configured to determine whether a frequency band of the uplink radio frequency signal is within a preset frequency band range; a first frequency band adjusting module 330, configured to adjust the frequency band of the uplink radio frequency signal to a target frequency band to obtain an adjusted uplink radio frequency signal when the frequency band of the uplink radio frequency signal is not within the preset frequency band range; the first adjusting signal receiving module 340 is configured to receive the adjusted uplink radio frequency signal through a preset radio remote port.
Preferably, the radio remote module includes: an editable filter and an editable mixer, wherein the first band adjustment module 330 includes: and the first frequency band adjusting submodule is used for adjusting the bandwidth of the uplink radio-frequency signal to a target bandwidth by the editable filter and adjusting the frequency band of the uplink radio-frequency signal to the target frequency band by the editable mixer to obtain the adjusted uplink radio-frequency signal.
Preferably, the method further comprises the following steps: and the first radio frequency signal receiving module is used for receiving the uplink radio frequency signal through the preset radio frequency remote port under the condition that the frequency band of the uplink radio frequency signal is within the preset range.
The radio frequency signal receiving apparatus provided in the embodiment of the present invention obtains a frequency band of an uplink radio frequency signal after receiving the uplink radio frequency signal sent by the terminal, adjusts the frequency band of the uplink radio frequency signal to a target frequency band under the condition that the frequency band of the uplink radio frequency signal is not within a preset frequency band range, obtains an adjusted uplink radio frequency signal, and further receives the adjusted uplink radio frequency signal through the preset radio remote port. The embodiment of the invention adjusts the frequency band of the uplink radio frequency signal, so that the RRU equipment can receive the multi-band radio frequency signal only by distributing a physical RRU interface of one frequency band without distributing physical RRU interfaces of a plurality of frequency bands, thereby saving the cost of operators and improving the working efficiency of products.
Example four
Referring to fig. 6, a schematic structural diagram of a radio frequency signal transmitting apparatus according to an embodiment of the present invention is shown, where the radio frequency signal transmitting apparatus may be applied to a radio remote module, and specifically may include:
a second frequency band obtaining module 410, configured to obtain a frequency band of a downlink radio frequency signal after receiving the downlink radio frequency signal sent by a base station; a second frequency band determining module 420, configured to determine whether a frequency band of the downlink radio frequency signal is within a preset frequency band range; a second frequency band adjusting module 430, configured to adjust the frequency band of the downlink radio frequency signal to a target frequency band under the condition that the frequency band of the downlink radio frequency signal is not within the preset frequency band range, so as to obtain an adjusted downlink radio frequency signal; a second adjusting signal sending module 440, configured to send the adjusted downlink radio frequency signal through a preset radio remote port.
Preferably, the radio remote module includes: an editable filter and an editable mixer, wherein the second band adjustment module 430 includes: and the second frequency band adjusting submodule is used for adjusting the bandwidth of the downlink radio-frequency signal to a target bandwidth by the editable filter and adjusting the frequency band of the downlink radio-frequency signal to the target frequency band by the editable mixer to obtain the adjusted downlink radio-frequency signal.
Preferably, the method further comprises the following steps: and the second radio frequency signal sending module is used for receiving the downlink radio frequency signal through the preset radio remote port under the condition that the frequency band of the downlink radio frequency signal is within the preset frequency band range.
The radio frequency signal transmitting device provided in the embodiment of the present invention obtains the frequency band of the downlink radio frequency signal after receiving the downlink radio frequency signal transmitted by the base station, adjusts the frequency band of the downlink radio frequency signal to the target frequency band when the frequency band of the downlink radio frequency signal is not within the preset frequency band range, obtains the adjusted downlink radio frequency signal, and transmits the adjusted downlink radio frequency signal through the preset radio remote port. The embodiment of the invention adjusts the frequency band of the downlink radio frequency signal, so that the multi-band radio frequency signal can be received and sent by the RRU equipment only by distributing a physical RRU interface of one frequency band, and the physical RRU interfaces of a plurality of frequency bands are not required to be distributed, thereby saving the cost of an operator and improving the working efficiency of a product.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
In the embodiment of the invention, after an uplink radio frequency signal sent by a terminal is received, the frequency band of the uplink radio frequency signal is obtained, the frequency band of the uplink radio frequency signal is adjusted to a target frequency band under the condition that the frequency band of the uplink radio frequency signal is not in a preset frequency band range, the adjusted uplink radio frequency signal is obtained, and the adjusted uplink radio frequency signal is received through a preset remote radio frequency port. The embodiment of the invention adjusts the frequency band of the uplink radio frequency signal, so that the RRU equipment can receive the multi-band radio frequency signal only by distributing a physical RRU interface of one frequency band without distributing physical RRU interfaces of a plurality of frequency bands, thereby saving the cost of operators and improving the working efficiency of products.
And after receiving a downlink radio frequency signal sent by the base station, acquiring the frequency band of the downlink radio frequency signal, adjusting the frequency band of the downlink radio frequency signal to a target frequency band under the condition that the frequency band of the downlink radio frequency signal is not within a preset frequency band range, acquiring an adjusted downlink radio frequency signal, and sending the adjusted downlink radio frequency signal through a preset remote radio frequency port. The embodiment of the invention adjusts the frequency band of the downlink radio frequency signal, so that the multi-band radio frequency signal can be received and sent by the RRU equipment only by distributing a physical RRU interface of one frequency band, and the physical RRU interfaces of a plurality of frequency bands are not required to be distributed, thereby saving the cost of an operator and improving the working efficiency of a product.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The foregoing describes in detail a radio frequency signal receiving method, a radio frequency signal sending method, a radio frequency signal receiving device and a radio frequency signal sending device provided by the present invention, and specific examples are applied herein to explain the principles and embodiments of the present invention, and the descriptions of the foregoing examples are only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (12)
1. A radio frequency signal receiving method is applied to a radio frequency remote module and is characterized by comprising the following steps:
after receiving an uplink radio frequency signal sent by a terminal, acquiring a frequency band of the uplink radio frequency signal;
judging whether the frequency band of the uplink radio frequency signal is within a preset frequency band range;
under the condition that the frequency band of the uplink radio-frequency signal is not within the range of the preset frequency band, adjusting the frequency band of the uplink radio-frequency signal to a target frequency band to obtain an adjusted uplink radio-frequency signal;
and receiving the adjusted uplink radio frequency signal through a preset radio frequency remote port.
2. The method of claim 1, wherein the radio remote module comprises: the step of adjusting the frequency band of the uplink radio frequency signal to a target frequency band to obtain an adjusted uplink radio frequency signal includes:
and adjusting the bandwidth of the uplink radio frequency signal to a target bandwidth by the editable filter, and adjusting the frequency band of the uplink radio frequency signal to the target frequency band by the editable mixer to obtain the adjusted uplink radio frequency signal.
3. The method according to claim 1, wherein after the step of determining whether the frequency band of the uplink radio frequency signal is within a preset frequency band range, the method further comprises:
and receiving the uplink radio frequency signal through the preset remote radio frequency port under the condition that the frequency band of the uplink radio frequency signal is within the preset range.
4. A radio frequency signal sending method is applied to a radio remote module, and is characterized by comprising the following steps:
after receiving a downlink radio frequency signal sent by a base station, acquiring a frequency band of the downlink radio frequency signal;
judging whether the frequency band of the downlink radio frequency signal is within a preset frequency band range or not;
under the condition that the frequency band of the downlink radio frequency signal is not within the preset frequency band range, adjusting the frequency band of the downlink radio frequency signal to a target frequency band to obtain an adjusted downlink radio frequency signal;
and sending the adjusted downlink radio frequency signal through a preset radio frequency remote port.
5. The method of claim 4, wherein the RRU comprises: the step of adjusting the frequency band of the downlink radio frequency signal to a target frequency band to obtain an adjusted downlink radio frequency signal includes:
and adjusting the bandwidth of the downlink radio frequency signal to a target bandwidth by the editable filter, and adjusting the frequency band of the downlink radio frequency signal to the target frequency band by the editable mixer to obtain the adjusted downlink radio frequency signal.
6. The method according to claim 4, wherein after the step of determining whether the frequency band of the downlink radio frequency signal is within a preset frequency band range, the method further comprises:
and under the condition that the frequency band of the downlink radio frequency signal is within the range of the preset frequency band, receiving the downlink radio frequency signal through the preset radio frequency remote port.
7. A radio frequency signal receiving device applied to a radio remote module, comprising:
the first frequency band acquisition module is used for acquiring the frequency band of an uplink radio frequency signal after receiving the uplink radio frequency signal sent by a terminal;
the first frequency band judging module is used for judging whether the frequency band of the uplink radio frequency signal is within a preset frequency band range or not;
the first frequency band adjusting module is used for adjusting the frequency band of the uplink radio-frequency signal to a target frequency band under the condition that the frequency band of the uplink radio-frequency signal is not within the range of the preset frequency band, so as to obtain an adjusted uplink radio-frequency signal;
and the first adjusting signal receiving module is used for receiving the adjusted uplink radio frequency signal through a preset radio remote port.
8. The apparatus of claim 7, wherein the radio remote module comprises: an editable filter and an editable mixer, wherein the first band adjustment module comprises:
and the first frequency band adjusting submodule is used for adjusting the bandwidth of the uplink radio-frequency signal to a target bandwidth by the editable filter and adjusting the frequency band of the uplink radio-frequency signal to the target frequency band by the editable mixer to obtain the adjusted uplink radio-frequency signal.
9. The apparatus of claim 7, further comprising:
and the first radio frequency signal receiving module is used for receiving the uplink radio frequency signal through the preset radio frequency remote port under the condition that the frequency band of the uplink radio frequency signal is within the preset range.
10. A radio frequency signal transmitting device applied to a radio remote module, comprising:
a second frequency band obtaining module, configured to obtain a frequency band of a downlink radio frequency signal after receiving the downlink radio frequency signal sent by a base station;
the second frequency band judging module is used for judging whether the frequency band of the downlink radio frequency signal is within a preset frequency band range or not;
a second frequency band adjusting module, configured to adjust the frequency band of the downlink radio frequency signal to a target frequency band to obtain an adjusted downlink radio frequency signal when the frequency band of the downlink radio frequency signal is not within the preset frequency band range;
and the second adjusting signal sending module is used for sending the adjusted downlink radio frequency signal through a preset radio frequency remote port.
11. The apparatus of claim 10, wherein the radio remote module comprises: an editable filter and an editable mixer, wherein the second band adjustment module comprises:
and the second frequency band adjusting submodule is used for adjusting the bandwidth of the downlink radio-frequency signal to a target bandwidth by the editable filter and adjusting the frequency band of the downlink radio-frequency signal to the target frequency band by the editable mixer to obtain the adjusted downlink radio-frequency signal.
12. The apparatus of claim 10, further comprising:
and the second radio frequency signal sending module is used for receiving the downlink radio frequency signal through the preset radio remote port under the condition that the frequency band of the downlink radio frequency signal is within the preset frequency band range.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330309A (en) * | 2008-07-30 | 2008-12-24 | 京信通信系统（中国）有限公司 | Multi-frequency-band digital radio frequency far-pulling system and operating method thereof |
| CN102185809A (en) * | 2011-05-06 | 2011-09-14 | 京信通信系统（中国）有限公司 | Remote radio frequency system |
| CN102186264A (en) * | 2011-04-12 | 2011-09-14 | 新邮通信设备有限公司 | Remote radio unit and remote ratio method |
| CN106656243A (en) * | 2015-10-27 | 2017-05-10 | 中兴通讯股份有限公司 | Multi-band transceiver and multi-band radio frequency signal sending and receiving method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247162B (en) * | 2007-02-13 | 2012-04-25 | 杰脉通信技术(上海)有限公司 | TD-SCDMA indoor distribution system simulating intermediate frequency |
| CN102664683A (en) * | 2012-04-27 | 2012-09-12 | 北京汉铭通信有限公司 | Remote signal processing method and remote unit used in remote optical fiber type wireless distribution systems |
| CN106686636A (en) * | 2015-11-10 | 2017-05-17 | 中兴通讯股份有限公司 | Method and device for determining availability of base station and base station |
| CN206196066U (en) * | 2016-09-14 | 2017-05-24 | 京信通信系统（中国）有限公司 | Signal transmission system of remote radio head module and applied this module |
-
2019
- 2019-05-13 CN CN201910400286.5A patent/CN111934698B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330309A (en) * | 2008-07-30 | 2008-12-24 | 京信通信系统（中国）有限公司 | Multi-frequency-band digital radio frequency far-pulling system and operating method thereof |
| CN102186264A (en) * | 2011-04-12 | 2011-09-14 | 新邮通信设备有限公司 | Remote radio unit and remote ratio method |
| CN102185809A (en) * | 2011-05-06 | 2011-09-14 | 京信通信系统（中国）有限公司 | Remote radio frequency system |
| CN106656243A (en) * | 2015-10-27 | 2017-05-10 | 中兴通讯股份有限公司 | Multi-band transceiver and multi-band radio frequency signal sending and receiving method |
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