CN118158692A - 5G communication signal coverage method and system - Google Patents
5G communication signal coverage method and system Download PDFInfo
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Abstract
The invention discloses a 5G communication signal coverage method and a system, wherein a 5G baseband unit with capacity receives EPC end signaling sent by a core network/gateway through a backhaul interface, and processes the EPC end signaling through a 5G baseband processing module to generate a digital signal; the 5G capacity baseband unit converts a digital signal into an RFIC (radio frequency integrated circuit) to be converted into a radio frequency analog signal, and the radio frequency analog signal is amplified by a power and low noise amplifier after descending and is transmitted to the far-end radio frequency unit after being combined or power-divided by a multiplexer; the remote radio frequency unit performs signal filtering on the radio frequency analog signal through the multiplexer, and converts the radio frequency analog signal into an original working signal through the frequency conversion module, amplifies the original working signal through the power and low noise amplifier, and performs signal coverage through the antenna; the RRU and the near-end machine in the traditional indoor subsystem are replaced by the 5G baseband unit with the capacity, so that the problem of user capacity is solved, meanwhile, compared with the traditional indoor subsystem, a three-level networking mode is required, the system is simplified into a two-level networking mode, the number of equipment is reduced, and engineering construction is facilitated.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a 5G communication signal coverage method and system.
Background
As mobile subscribers in cities increase rapidly and high-rise buildings increase, traffic density and coverage requirements continue to rise. These buildings are large in size and have a strong shielding effect on mobile telephone signals. In the environments of low floors of large buildings, underground shops, underground parking lots and the like, mobile communication signals are weak, mobile phones cannot be used normally, and a blind area and a shadow area of mobile communication are formed; at the middle floor, pilot frequency pollution is caused due to overlapping of signals from different surrounding base stations, and the mobile phone is frequently switched and even dropped, so that the normal use of the mobile phone is seriously affected. In addition, in some buildings, although the mobile phone can normally communicate, the user density is high, the base station channel is crowded, and the mobile phone is difficult to be connected to the line.
Since the country greatly developed the communication industry, the communication system extends from 2G to 3G to 4G, and basically realizes coverage of each communication range below 4G. However, the existing indoor distribution system mostly adopts passive devices, cables and other performance indexes which are different due to different network distribution time, and some early passive devices and cables usually only meet the frequency range of 800 MHz-2.1 GHz, support 800 MHz-3 GHz and the like, and are not suitable for signal transmission in the range lower or higher than the frequency range. With the development of the current 5G communication industry, there is a need to solve the problem that 5G achieves wide area coverage indoors. However, the conventional coverage engineering cannot meet the coverage requirements of higher frequency bands, such as high loss caused by frequency band suppression and transmission.
A schematic diagram of a conventional variable frequency room subsystem is shown in fig. 1. Aiming at 5G transmission, a large number of multi-room subsystem adopts a mode that an information source is required to be fetched from a macro-station RRU, the frequency is converted to low frequency through a near-end machine, and then the frequency is recovered to a far-end for signal coverage. And the traditional indoor distribution system has no method for expanding the capacity of the user, and can occupy the resources of the macro station.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: A5G communication signal coverage method and system are provided to solve the problem of user capacity.
In order to solve the technical problems, the invention adopts the following technical scheme:
a 5G communication signal coverage method, comprising the steps of:
s1, receiving EPC end signaling sent by a core network/gateway through a backhaul interface by a 5G baseband unit, and processing the EPC end signaling through a 5G baseband processing module to generate a digital signal;
S2, the 5G capacity baseband unit converts a digital signal into an RFIC (radio frequency integrated circuit) to be converted into a radio frequency analog signal, and the radio frequency analog signal is amplified by a power and low noise amplifier and then transmitted to the far-end radio frequency unit after being combined by a multiplexer or subjected to power division;
S3, the remote radio frequency unit performs signal filtering on the radio frequency analog signals through a multiplexer, and converts the signals into original working signals through a frequency conversion module, and the original working signals are amplified through a power and low noise amplifier and then subjected to signal coverage through an antenna.
In order to solve the technical problems, the invention adopts another technical scheme that:
A5G communication signal coverage system comprises a far-end radio frequency unit and a 5G capacity baseband unit for connecting a core network/gateway;
The 5G capacity baseband unit is connected with the remote radio frequency unit through a feeder line;
the remote radio frequency unit is connected with the indoor antenna;
The 5G baseband unit with capacity comprises a backhaul interface, a 5G baseband processing module, an RFIC, a multiplexer and a power and low noise amplifier;
the remote radio frequency unit comprises a multiplexer, a frequency conversion system, a filter, a power amplifier and a low noise amplifier;
the remote radio frequency unit and the 5G baseband unit with capacity jointly realize the steps in the 5G communication signal coverage method.
The invention has the beneficial effects that: according to the 5G communication signal coverage method and system, the RRU and the near-end machine in the traditional indoor subsystem are replaced by the 5G baseband unit with the capacity, so that the problem of user capacity is solved, meanwhile, compared with the traditional indoor subsystem, a three-level networking mode is required, the method and system are simplified into a two-level networking mode only, the number of equipment is reduced, and engineering construction is facilitated.
Drawings
FIG. 1 is a schematic diagram of a conventional variable frequency room subsystem according to the background of the invention;
Fig. 2 is a schematic structural diagram of a 5G capacity baseband unit in a 5G communication signal coverage system according to an embodiment of the present invention;
Fig. 3 is a schematic structural diagram of a 5G communication signal coverage system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a remote radio unit structure of a 5G communication signal coverage system according to an embodiment of the present invention;
fig. 5 is a flowchart of a 5G communication signal coverage method according to an embodiment of the present invention.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 5, a 5G communication signal coverage method includes the steps of:
s1, receiving EPC end signaling sent by a core network/gateway through a backhaul interface by a 5G baseband unit, and processing the EPC end signaling through a 5G baseband processing module to generate a digital signal;
S2, the 5G capacity baseband unit converts a digital signal into an RFIC (radio frequency integrated circuit) to be converted into a radio frequency analog signal, and the radio frequency analog signal is amplified by a power and low noise amplifier and then transmitted to the far-end radio frequency unit after being combined by a multiplexer or subjected to power division;
S3, the remote radio frequency unit performs signal filtering on the radio frequency analog signals through a multiplexer, and converts the signals into original working signals through a frequency conversion module, and the original working signals are amplified through a power and low noise amplifier and then subjected to signal coverage through an antenna.
From the above description, the beneficial effects of the invention are as follows: the invention replaces RRU and near-end machine in traditional indoor subsystem by 5G with capacity baseband unit, solves the problem of user capacity, and simultaneously, compared with traditional indoor subsystem which needs three-level networking mode, the invention can simplify to only two-level networking mode, reduces the number of equipment and facilitates engineering construction.
Further, the step S1 specifically includes:
And the 5G baseband unit with capacity receives EPC signaling sent by the core network/gateway through the backhaul interface, and processes a protocol stack and a physical layer through the 5G baseband processing module to generate a digital signal.
Further, the 5G baseband processing module performs a protocol stack and a physical layer process, and generating a digital signal includes the steps of:
the 5G baseband processing module completes the processing of the protocol stack and the processing of the physical layer control part through the SOC of 5G;
The processing of the physical layer High PHY is completed through a 5G accelerator;
Partial processing of the LOW PHY is completed through the FPGA;
a digital signal is generated.
As can be seen from the above description, the 5G baseband processing module performs protocol stack processing, analyzes and processes downlink Transmission Control Protocol (TCP) and Internet Protocol (IP) data packets, performs operations such as flow control, error checking, retransmission, and the like, and ensures reliable transmission of data; the physical layer processing mainly comprises the functions of signal modulation and demodulation, channel encoding and decoding, radio frequency front end control, signal processing and the like, so that high-speed and high-quality data transmission is realized.
Further, after the original working signal is generated in step S3, the method further includes the steps of:
And coupling one path of the original working signal to a detection and switch control module, wherein the detection and switch control module restores an uplink and downlink switching signal to a CPLD chip through an envelope detection circuit, and the CPLD chip is used for switching and controlling the occupation time of the LNA and the PA.
As can be seen from the above description, the TDD signal allows uplink and downlink to be alternately performed in the same frequency band, and makes full use of spectrum resources. By means of envelope detection and CPLD chip control, time slices of uplink and downlink transmission can be accurately replaced, and the spectrum utilization rate is higher. The uplink and downlink time segments of the TDD signal can be flexibly configured according to different requirements to adapt to different service requirements. The dynamic adjustment of the time slot can be realized through the control of the CPLD chip, and the flexibility and the adaptability of the system are improved. The uplink and the downlink share the same frequency band, and interference may be caused. By coupling one path to the envelope detection circuit and restoring the uplink and downlink switching signals, the use time of the LNA and the PA can be controlled more accurately, the interference between the uplink and the downlink is reduced, and the performance and the stability of the system are improved.
Further, the method further comprises the steps of:
The remote radio frequency unit receives an uplink signal sent by the user equipment through an antenna, amplifies the signal through an LNA, and after frequency conversion through a frequency conversion system, the signal is transmitted to the 5G base band unit with capacity through a multiplexer combining path or a power division path through a transmission link;
The 5G baseband unit with capacity carries out signal filtering through a multiplexer, and after being amplified by LNA signals, the signals are converted into digital signals through an RFIC, and then the digital signals are processed by the 5G baseband processing module and then transmitted to the EPC end of the core network through a backhaul interface.
From the above description, the steps of processing and transmitting the uplink signal to the EPC end are implemented based on the above steps.
Referring to fig. 2 to 4, a 5G communication signal coverage system includes a remote radio unit and a 5G baseband unit with capacity for connecting to a core network/gateway;
The 5G capacity baseband unit is connected with the remote radio frequency unit through a feeder line;
the remote radio frequency unit is connected with the indoor antenna;
The 5G baseband unit with capacity comprises a backhaul interface, a 5G baseband processing module, an RFIC, a multiplexer and a power and low noise amplifier;
the remote radio frequency unit comprises a multiplexer, a frequency conversion system, a filter, a power amplifier and a low noise amplifier;
the remote radio frequency unit and the 5G baseband unit with capacity jointly realize the steps in the 5G communication signal coverage method.
From the above description, the beneficial effects of the invention are as follows: the invention replaces RRU and near-end machine in traditional indoor subsystem by 5G with capacity baseband unit, solves the problem of user capacity, and simultaneously, compared with traditional indoor subsystem which needs three-level networking mode, the invention can simplify to only two-level networking mode, reduces the number of equipment and facilitates engineering construction.
Further, in the 5G capacity baseband unit:
the backhaul interface is connected with the 5G baseband processing module;
The 5G baseband processing module is connected with the RFIC;
The RFIC is connected to the power and low noise amplifier;
the power and low noise amplifier is connected to the multiplexer.
As is apparent from the above description, the connection structure of the composition of the 5G capacity baseband unit is explained.
Further, in the remote radio unit:
One end of the multiplexer is connected with the feeder line, and the other end of the multiplexer is connected with the variable frequency system;
The power and low noise amplifier is connected with the frequency conversion system;
the filter is connected to the power and low noise amplifier.
From the above description, it is apparent that the connection structure of the components of the remote rf unit is described.
Further, the number of the remote radio units is a plurality;
Each remote radio unit is connected with one coupler, and a plurality of couplers are connected in series on the feed line.
From the above description, it is apparent that connecting a plurality of remote radio units via a feeder and coupler can be adapted for a wider range of signal coverage.
Further, the 5G remote unit further comprises a detection and switch control module;
The detection and switch control module is connected with the variable frequency system and the power and low noise amplifier;
The detection and switch control module comprises a detection link, a CPLD chip and a radio frequency change-over switch which are sequentially connected.
As can be seen from the above description, for the TDD system, a detection and switch control module is provided, and the interior of the TDD system is composed of an envelope detection link, a CPLD chip, a radio frequency switch, and the like.
The 5G communication signal coverage method and system are suitable for transmitting and covering 5G base station communication products with capacity on the existing traditional indoor distribution system, and realize novel transmission of 2T2R/4T4R signals of 5G NR by a single feeder line.
Referring to fig. 5, a first embodiment of the present invention is as follows:
a 5G communication signal coverage method, comprising the steps of:
s1, receiving EPC end signaling sent by a core network/gateway through a backhaul interface by a 5G baseband unit, and processing the EPC end signaling through a 5G baseband processing module to generate a digital signal;
the step S1 specifically comprises the following steps:
the 5G baseband unit with capacity receives EPC signaling sent by the core network/gateway through the backhaul interface, and processes a protocol stack and a physical layer through the 5G baseband processing module to generate a digital signal;
the 5G baseband processing module processes a protocol stack and a physical layer, and generates a digital signal, wherein the method comprises the following steps:
the 5G baseband processing module completes the processing of the protocol stack and the processing of the physical layer control part through the SOC of 5G;
The processing of the physical layer High PHY is completed through a 5G accelerator;
Partial processing of the LOW PHY is completed through the FPGA;
a digital signal is generated.
In this embodiment, EPC end signaling is transmitted to the 5G baseband unit with capacity through a backhaul port, SOC of 5G in a 5G baseband processing module of the 5G baseband unit with capacity completes processing of a protocol stack, and physical layer control part processes, accelerator of 5G completes processing of physical layer High PHY, FPGA completes part of processing of LOW PHY, and JESD204B/C digital signal is generated.
S2, the 5G capacity baseband unit converts the digital signal into an RFIC (radio frequency integrated circuit) to be converted into a radio frequency analog signal, and the radio frequency analog signal is amplified by a power and low noise amplifier after descending and is transmitted to the far-end radio frequency unit after being combined by a multiplexer or being subjected to power division.
In this embodiment, the generated JESD204B/C digital signal is converted into a radio frequency analog signal required by single-path or two-path transmission through an RFIC converter with high integration level, and the signal is amplified by a power amplifier in the downlink, and is transmitted to a remote radio frequency unit on a transmission link after being combined or divided by a multiplexer.
S3, the remote radio frequency unit performs signal filtering on the radio frequency analog signals through a multiplexer, and converts the signals into original working signals through a frequency conversion module, and the original working signals are amplified through a power and low noise amplifier and then subjected to signal coverage through an antenna.
In this embodiment, the remote rf unit filters out respective signals through the multiplexer, and converts the signals into the original working signals through the frequency conversion module, and outputs the original working signals through amplification, and finally covers the working signals through the antenna.
The step S3 further comprises the steps of:
And coupling one path of the original working signal to a detection and switch control module, wherein the detection and switch control module restores an uplink and downlink switching signal to a CPLD chip through an envelope detection circuit, and the CPLD chip is used for switching and controlling the occupation time of the LNA and the PA.
In this embodiment, for the TDD system, when the signal is transmitted to the remote radio unit, the signal is coupled to the envelope detection circuit, and the uplink and downlink switching signals are restored to the CPLD chip through the envelope detection circuit, and the occupation time of the LNA and the PA is controlled through switching of the CPLD chip.
The second embodiment of the invention is as follows:
A 5G communication signal coverage method is different from the first embodiment in that the transmission of an uplink signal is described in this embodiment.
The remote radio frequency unit receives an uplink signal sent by the user equipment through an antenna, amplifies the signal through an LNA, and after frequency conversion through a frequency conversion system, the signal is transmitted to the 5G base band unit with capacity through a multiplexer combining path or a power division path through a transmission link;
The 5G baseband unit with capacity carries out signal filtering through a multiplexer, and after being amplified by LNA signals, the signals are converted into digital signals through an RFIC, and then the digital signals are processed by the 5G baseband processing module and then transmitted to the EPC end of the core network through a backhaul interface.
The uplink UE signal receives a space signal, the space signal is amplified by a far-end unit LNA, then is converted into a required frequency signal by a frequency mixing link, is transmitted to a 5G capacity baseband unit in a transmission link after being combined or power-divided by a quadruplex filter, the respective signals are filtered by the 5G capacity baseband unit through a multiplexing filter, and are converted into JESD204B/C digital signals after being amplified by the LNA signal and then are transmitted to an EPC end through a return port after being processed by the 5G capacity baseband unit.
The third embodiment of the invention is as follows:
According to the 5G communication signal coverage method, the existing network stock room cable can basically cover 800M-2.1 GHz frequency bands, and the system can flexibly configure transmission frequencies, so that interference to other external wireless devices can be reduced, and the system is preferably configured as follows:
4 frequency bands are respectively output in the 5G base station with capacity, and after multiplexing by a multiplexer, the single feeder is realized to complete multichannel frequency transmission. The 5G end member separates the frequency band needed by the frequency conversion of the corresponding frequency band through a multiplexer.
The existing 5G communication product station distribution and transmission method comprises the following steps:
Band 1: the 5G active base station (5G baseband unit with capacity) outputs frequency band 1:1050 MHz-1150MHz, the RU remote (remote radio unit) converts the 1050 MHz-1150 MHz band to 3300 MHz-3400 MHz (or other frequencies such as 2.6G band) to PA1, and the uplink is reverse converted.
Frequency band 2: the 5G active base station outputs frequency band 1 respectively: 1200 MHz-1300 MHz, the remote RU frequency-converting from 1200 MHz-1300 MHz band to 3300 MHz-3400 MHz (or other frequencies) is transmitted to the PA1, and the uplink frequency-converting is performed reversely.
Frequency band 3: the 5G active base station outputs frequency band 1 respectively: 1350-1450MHz, the RU remote frequency-converting 1350-1450 MHz frequency band to 3300-3400 MHz (or other frequencies) transmitting to the PA1, the uplink reverse frequency-converting.
Band 4: the 5G active base station outputs frequency band 1 respectively: 1500 MHz-160 MHz, the RU remote transmits the frequency band frequency conversion from 1500 MHz-1600 MHz to 3300 MHz-3400 MHz (or other frequencies) to the PA1, and the uplink frequency conversion is reverse.
Referring to fig. 2, a fourth embodiment of the present invention is as follows:
A5G baseband unit with capacity comprises a backhaul interface, a 5G baseband processing module, a power supply module, a clock module, an RFIC, a multiplexer and a power and low noise amplifier;
the backhaul interface is connected with the 5G baseband processing module;
the power module is connected with the 5G baseband processing module and the RFIC;
the clock module is connected with the 5G baseband processing module and the RFIC;
The RFIC is connected to the power and low noise amplifier;
the power and low noise amplifier is connected to the multiplexer.
The number of power and low noise amplifiers is a plurality.
In this embodiment, the 5G baseband unit with capacity is composed of 1 baseband unit processing module, 1 RFIC, 1 clock module, 4 PA & LNA modules (power and low noise amplifier), 1 power module, and 1 multiplexer. In other equivalent embodiments, the number of PA & LNA modules may be increased or decreased accordingly according to the actual requirements.
The power supply module of the 5G baseband unit with capacity inputs external 220V alternating current or direct current 48V, converts the input 220V alternating current or direct current into power supply of modules such as a baseband unit, an RFIC, a PA and an LNA in equipment, and the clock module respectively provides reference clocks for the baseband processing module and the RFIC; the RFIC is connected with the baseband processing module through a digital interface JESD204B/C interface, directly outputs the frequency required by radio frequency transmission after being converted by an internal DAC and a frequency conversion module, and simultaneously receives radio frequency signals from the LNA and converts the radio frequency signals into JESD204B/C interfaces through the internal frequency conversion and ADC module to be connected with the baseband processing module. The PA & LNA module outputs a downlink signal to the amplifying RFIC and amplifies the uplink signal to be used as an input of the RFIC, and the multiplexer filters useless signals according to the system relation requirement and keeps the useful signals to be transmitted to the indoor subsystem.
Referring to fig. 3 and 4, a fifth embodiment of the present invention is as follows:
A5G communication signal coverage system comprises a far-end radio frequency unit and a 5G capacity baseband unit for connecting a core network/gateway;
The 5G capacity baseband unit is connected with the remote radio frequency unit through a feeder line;
the remote radio frequency unit is connected with the indoor antenna;
the 5G baseband unit with capacity adopts one of the 5G baseband units with capacity described in the fourth embodiment.
In this embodiment, the indoor 5G communication distribution system is composed of a 5G baseband unit with capacity and a remote rf unit, which is simplified to a two-level networking mode only and can perform a capacity expansion network mode of user capacity compared with the conventional indoor distribution system which requires a three-level networking mode.
In this embodiment, the remote radio unit is specifically a 5G remote unit;
Referring to fig. 4, the 5G remote unit includes a multiplexer, a power module, a clock module, a frequency conversion system, a filter, a power and a low noise amplifier;
One end of the multiplexer is connected with the feeder line, and the other end of the multiplexer is connected with the variable frequency system;
The power module and the clock module are connected with the frequency conversion system;
The power and low noise amplifier is connected with the frequency conversion system;
the filter is connected to the power and low noise amplifier.
For the TDD mode, in this embodiment, the 5G remote unit further includes a detection and switch control module;
The detection and switch control module is connected with the variable frequency system and the power and low noise amplifier; the detection and switch control module comprises a detection link, a CPLD chip and a radio frequency change-over switch which are sequentially connected.
The frequency conversion system, the power and low noise amplifier, the filter and the radio frequency change-over switch of the detection and switch control module are all multiple and equal in number;
Each frequency conversion system is connected with one power and low noise amplifier in a unique corresponding mode;
each power and low noise amplifier is connected with one filter in a unique corresponding way;
And each radio frequency change-over switch in the detection and switch control module is connected with one power and low noise amplifier in a unique corresponding mode.
In this embodiment, the number of the frequency conversion system, the power and low noise amplifier, the filter, and the radio frequency switch of the detection and switch control module is 4, and in other equivalent embodiments, the number of the radio frequency switch may be adjusted according to the actual requirement.
That is, in this embodiment, the remote radio unit is composed of 1 multiplexer, 4 frequency conversion modules (the number can be reduced or increased correspondingly), 4 PA & LNA modules (the number can be reduced or increased), 4 filters, and 1 power supply. Meanwhile, for the TDD system, a detection and switch control module is also provided, and the inside of the system is composed of an envelope detection link, a CPLD chip, 4 radio frequency change-over switches (the number can be correspondingly reduced or increased) and the like.
The power supply of the remote radio frequency unit supplies power to the main board, and the multiplexers are respectively connected to the frequency conversion modules; the frequency conversion module is connected to the PA and LNA module, connected to the filter and then connected to the indoor antenna for covering.
The remote radio unit and the 5G capacity baseband unit jointly implement the steps in the 5G communication signal coverage method described in any one of the above embodiments.
Referring to fig. 3, a sixth embodiment of the present invention is as follows:
A 5G communication signal coverage system, which is different from the fifth embodiment in that the coverage system further includes a multi-frequency combiner;
the number of the remote radio frequency units is a plurality;
each far-end radio frequency unit is connected with one coupler, and a plurality of couplers are connected in series on the feed line;
The multi-frequency combiner is used for connecting at least one of 4G RRU, 3G RRU and 2G RRU;
the 5G baseband unit with capacity is connected with the multi-frequency combiner;
the multi-frequency combiner connects a plurality of couplers in series through a feeder line.
In summary, according to the 5G baseband unit with capacity and the indoor distribution system for 5G communication provided by the invention, the RRU and the near-end machine in the traditional indoor subsystem are replaced by the 5G baseband unit with capacity, so that the problem of user capacity is solved, and meanwhile, compared with the traditional indoor subsystem, a three-level networking mode is required, the system is simplified into a two-level networking mode only, the number of equipment is reduced, and engineering construction is facilitated.
On one hand, the invention provides a 5G baseband unit with capacity, which replaces RRU and a near-end machine in the traditional indoor division system, solves the problem of user capacity, reduces the number of equipment and facilitates engineering construction. On the other hand, the invention provides a 5G communication signal coverage method, which realizes 2T2R/4T4R signal transmission communication product station distribution and transmission of 5G with capacity single feeder on a traditional indoor division system and can also extend single-channel or more channel signal transmission of single feeder transmission.
The existing domestic communication coverage modes comprise CDMA, GSM900, DCS1800 TD-SCDMA, TDD-LTE, FDD-LTE, WLAN and the like, and the frequency bands of all modes are ：869-880/824－835MHz、930－960/885－915MHz、1805-1880/1710-1785MHz、1885-1915MHz、2110-2170/1920-1980MHz、2300-2400MHz、2500-2600MHz and the like.
In the traditional communication field below 4G, each passive device such as a coupler, a power divider and a combiner on an indoor distribution system, the performance indexes of a transmission conductor such as a feeder line are different according to different periods of network distribution, the indexes are also different, 800 MHz-2.1 GHz is satisfied at the early stage, the frequency range is generally satisfied at the later stage, and the frequency range is more than 2.6GHz in the 5G communication industry which is greatly developed nowadays, for example, the N41 frequency range is 2500-2600MHz; n77 frequency band: 3300 MHz-4200 MHz, N78 frequency band: if the frequency band is directly applied to the old indoor system, for example, 3300MHz to 3800MHz, the signal cannot pass due to the suppression property outside the frequency band. The 5G baseband unit with capacity and the indoor distribution system for 5G communication enable the communication frequency band with high frequency band (for example, more than 2.6G) to realize transmission on the old indoor subsystem.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (10)
1. A 5G communication signal coverage method, comprising the steps of:
s1, receiving EPC end signaling sent by a core network/gateway through a backhaul interface by a 5G baseband unit, and processing the EPC end signaling through a 5G baseband processing module to generate a digital signal;
S2, the 5G capacity baseband unit converts a digital signal into an RFIC (radio frequency integrated circuit) to be converted into a radio frequency analog signal, and the radio frequency analog signal is amplified by a power and low noise amplifier and then transmitted to the far-end radio frequency unit after being combined by a multiplexer or subjected to power division;
S3, the remote radio frequency unit performs signal filtering on the radio frequency analog signals through a multiplexer, and converts the signals into original working signals through a frequency conversion module, and the original working signals are amplified through a power and low noise amplifier and then subjected to signal coverage through an antenna.
2. The method for covering a 5G communication signal according to claim 1, wherein step S1 specifically comprises:
And the 5G baseband unit with capacity receives EPC signaling sent by the core network/gateway through the backhaul interface, and processes a protocol stack and a physical layer through the 5G baseband processing module to generate a digital signal.
3. The method for covering a 5G communication signal according to claim 2, wherein the 5G baseband processing module performs a protocol stack and a physical layer process, and the step of generating the digital signal comprises:
the 5G baseband processing module completes the processing of the protocol stack and the processing of the physical layer control part through the SOC of 5G;
The processing of the physical layer High PHY is completed through a 5G accelerator;
Partial processing of the LOW PHY is completed through the FPGA;
a digital signal is generated.
4. The method for covering a 5G communication signal according to claim 1, wherein after the original working signal is generated in step S3, the method further comprises the steps of:
And coupling one path of the original working signal to a detection and switch control module, wherein the detection and switch control module restores an uplink and downlink switching signal to a CPLD chip through an envelope detection circuit, and the CPLD chip is used for switching and controlling the occupation time of the LNA and the PA.
5. The 5G communication signal coverage method of claim 1, further comprising the steps of:
The remote radio frequency unit receives an uplink signal sent by the user equipment through an antenna, amplifies the signal through an LNA, and after frequency conversion through a frequency conversion system, the signal is transmitted to the 5G base band unit with capacity through a multiplexer combining path or a power division path through a transmission link;
The 5G baseband unit with capacity carries out signal filtering through a multiplexer, and after being amplified by LNA signals, the signals are converted into digital signals through an RFIC, and then the digital signals are processed by the 5G baseband processing module and then transmitted to the EPC end of the core network through a backhaul interface.
6. A 5G communication signal coverage system, comprising a remote radio unit and a 5G capacious baseband unit for connecting to a core network/gateway;
The 5G capacity baseband unit is connected with the remote radio frequency unit through a feeder line;
the remote radio frequency unit is connected with the indoor antenna;
The 5G baseband unit with capacity comprises a backhaul interface, a 5G baseband processing module, an RFIC, a multiplexer and a power and low noise amplifier;
the remote radio frequency unit comprises a multiplexer, a frequency conversion system, a filter, a power amplifier and a low noise amplifier;
the remote radio unit and the 5G capacious baseband unit together implement the steps of a 5G communication signal coverage method as set forth in any one of the preceding claims 1-5.
7. The 5G communication signal coverage system of claim 6, wherein said 5G capacity baseband unit:
the backhaul interface is connected with the 5G baseband processing module;
The 5G baseband processing module is connected with the RFIC;
The RFIC is connected to the power and low noise amplifier;
the power and low noise amplifier is connected to the multiplexer.
8. The 5G communication signal coverage system of claim 6, wherein said remote radio unit:
One end of the multiplexer is connected with the feeder line, and the other end of the multiplexer is connected with the variable frequency system;
The power and low noise amplifier is connected with the frequency conversion system;
the filter is connected to the power and low noise amplifier.
9. The 5G communication signal coverage system of claim 6, wherein said number of remote radio units is a plurality;
Each remote radio unit is connected with one coupler, and a plurality of couplers are connected in series on the feed line.
10. The 5G communication signal coverage system of claim 6, wherein said 5G remote unit further comprises a detection and switch control module;
The detection and switch control module is connected with the variable frequency system and the power and low noise amplifier;
The detection and switch control module comprises a detection link, a CPLD chip and a radio frequency change-over switch which are sequentially connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410156944.1A CN118158692A (en) | 2024-02-04 | 2024-02-04 | 5G communication signal coverage method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410156944.1A CN118158692A (en) | 2024-02-04 | 2024-02-04 | 5G communication signal coverage method and system |
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| CN118158692A true CN118158692A (en) | 2024-06-07 |
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