Single-feeder four-stream coverage system based on passive frequency conversion, energy consumption control method, and medium

Abstract

The present disclosure relates to the field of communications, and provides a single-feeder four-stream coverage system based on passive frequency conversion, an energy consumption control method, and a medium. The system comprises a power controller, a first radio remote unit (RRU), a second RRU, three-port multi-frequency combiners, couplers, two-port multi-frequency combiners, and passive frequency conversion antennas, wherein the first RRU is used for outputting signals having data information, and the power controller is used for controlling signal output power of the first RRU; the three-port multi-frequency combiners are used for combining signals transmitted by three channels, the couplers are used for equally dividing received signals; and the passive frequency conversion antennas are used for outputting, to the outside, combined signals sent by the two-port multi-frequency combiners. According to the present disclosure, by means of the components above, four channels of signals generated by the first RRU and the second RRU are transmitted to the passive frequency conversion antennas, that is, a four-stream coverage effect can be achieved by means of a single-feeder distribution system.

Description

Single-channel four-stream coverage system based on passive frequency conversion, energy consumption control method and medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on and claims the priority of Chinese patent application with application number 202410235269.1 and application date March 1, 2024. The entire content of this Chinese patent application is hereby incorporated into this disclosure by reference. Technical Field

[0003] The present disclosure relates to the field of communications, and in particular to a single-channel four-stream coverage system based on passive frequency conversion, an energy consumption control method, and a medium. Background Art

[0004] The existing staggered coverage technical solutions include: 1. A 5G indoor terminal antenna monitoring device with application number 202210089069.0; 2. A device and method supporting 5G near-end and far-end wireless frequency shifting with application number 202211440707.5; 3. A 5G frequency shifting system with dual MIMO on a single feeder line with application number 202210056024.3.

[0005] Solution 1 uses only a single 5G active frequency shift device to monitor the antenna terminal. Active frequency shift requires power at the remote end, making the equipment more complex and uneconomical. It also requires additional near-end devices, further increasing costs.

[0006] In solution 2, the frequency conversion signal transmission process is wireless transmission in free space, which uses more components and is more expensive;

[0007] The 2×2 MIMO described in Solution 3 essentially refers to two 1.1 GHz signals and two 1.3 GHz signals. In practice, the 1.1 GHz and 1.3 GHz signals must be mixed at the remote end. Ultimately, the remote antenna can only send two signals, and the terminal can only receive two signals.

[0008] It can be seen that the above-mentioned existing staggered covering technical solutions have the problems of high cost and poor stability and reliability. Summary of the Invention

[0009] The embodiments of the present disclosure provide a single-channel four-stream coverage system based on passive frequency conversion, an energy consumption control method and a medium, so as to solve the technical problems of high cost and unstable reliability of the existing staggered layer coverage technology solutions.

[0010] In a first aspect, an embodiment of the present disclosure provides a single-channel four-stream coverage system based on passive frequency conversion, including a power controller, a first remote radio unit (RRU), a second RRU, a three-port multi-frequency combiner, a coupler, a two-port multi-frequency combiner, and a passive frequency conversion antenna, wherein:

[0011] The power controller is connected to the first RRU, the first RRU is used to output a signal with data information, and the power controller is used to control the signal output power of the first RRU;

[0012] The first RRU is connected to the three-port multi-frequency combiner via three channels, and the three-port multi-frequency combiner is used to combine signals transmitted through the three channels;

[0013] The three-port multi-frequency combiner is connected to the two-port multi-frequency combiner via the coupler, the coupler is used to equally divide the received signal to obtain an equalized signal, and the two-port multi-frequency combiner is used to combine the equalized signals sent by the coupler to obtain a combined signal;

[0014] The two-port multi-frequency combiner is connected to the passive frequency-variable antenna, and the passive frequency-variable antenna is used to output the combined signal sent by the two-port multi-frequency combiner to the outside world;

[0015] The second RRU is connected to the coupler via a single channel;

[0016] The three signals generated by the first RRU and the one signal generated by the second RRU are transmitted to the passive frequency-variable antenna through the three channels, the single channel, the three-port multi-frequency combiner, the coupler, and the two-port multi-frequency combiner.

[0017] In one embodiment, the power controller includes a variable frequency RRU monitor, a variable frequency RRU channel power regulator, an RRU status reading device, an initial condition input unit, and a calculation unit; the variable frequency RRU channel power regulator is connected to the first RRU and the calculation unit respectively; the variable frequency RRU monitor is connected to the RRU status reading device and the calculation unit respectively, wherein the variable frequency RRU monitor includes a variable frequency RRU traffic monitor, a variable frequency RRU energy consumption monitor, and a variable frequency RRU user number monitor; the RRU status reading device is connected to the first RRU; the initial condition input unit is connected to the calculation unit; wherein:

[0018] The RRU status reading device is used to read the operating information of the first RRU;

[0019] The variable frequency RRU monitor is used to extract the number of connected users, energy consumption information and uplink and downlink traffic rates from the operation information;

[0020] The initial condition input unit is used to obtain user historical status information;

[0021] The calculation unit is used to control the signal output power of the first RRU in each channel based on the number of connected users, the energy consumption information, the uplink and downlink traffic rates, and the user historical status information.

[0022] In one embodiment, the first RRU includes a high-speed interface module, a target signal transceiver, a power amplifier PA, a low-noise amplifier LNA, a circulator, a radio frequency module RF switch, a standing wave monitoring circuit, a high-power load, a first grounder, a second grounder, a non-frequency shifting filter, and a frequency shifting filter, wherein:

[0023] The high-speed interface module is connected to the three-port multi-frequency combiner via a target signal transceiver device, which includes a non-frequency-shifted signal transceiver device and a frequency-shifted signal transceiver device;

[0024] The target signal transceiver is connected to the three-port multi-frequency combiner via the PA, the circulator, and the non-frequency shifting filter or the frequency shifting filter in sequence;

[0025] The target signal transceiver and the standing wave monitoring circuit are connected in sequence via the LNA and the RF switch;

[0026] The target signal transceiver device is connected to the first grounder in sequence through the LNA, the RF switch and the high-power load;

[0027] The frequency-shift signal transceiver device is connected to the second grounder in sequence through the PA, the circulator, the RF switch, and the high-power load.

[0028] In one embodiment, the three-port multi-frequency combiner includes a signal input receiver, a combining device, and a signal output device, wherein:

[0029] One end of the combiner is connected to the signal input receiver, and the other end is connected to the signal output device;

[0030] The combining device is used to combine non-co-frequency signals transmitted by the signal input receiver, and send the combined signal through the signal output device.

[0031] In one embodiment, the single-channel four-stream coverage system based on passive frequency conversion further includes a distribution system, wherein:

[0032] One end of the distribution system is connected to the two-port multi-frequency combiner, and the other end is connected to the passive frequency-variable antenna;

[0033] The distribution system is used to transmit the signal sent by the two-port multi-frequency combiner to the passive frequency-changing antenna.

[0034] In one embodiment, the coupler is used to evenly split the received signal into two signals with the same frequency and half the power.

[0035] In one embodiment, the passive frequency-variable antenna includes a signal input port, a frequency shift module, a vertically polarized radiation unit, and a horizontally polarized radiation unit, wherein:

[0036] The signal input port is connected to the two-port multi-frequency combiner and the frequency shift module respectively;

[0037] The vertical polarization radiation unit and the horizontal polarization radiation unit are both connected to the frequency shift module.

[0038] In one embodiment, the signal input port is used to classify various signals;

[0039] The frequency shift module is used to directly pass a part of the signals in each channel and perform superposition frequency shift on another part of the signals in each channel;

[0040] The vertically polarized radiation unit is used to output the direct signal;

[0041] The horizontally polarized radiation unit is used to output the signal with superimposed frequency shift.

[0042] In a second aspect, an embodiment of the present disclosure provides an energy consumption control method, which is applied to the single-channel four-stream coverage system based on passive frequency conversion described in the first aspect. The energy consumption control method includes:

[0043] Determining a target power value based on the number of connected users, the energy consumption information, the uplink and downlink traffic rates, and the user historical status information; and

[0044] Based on a comparison result between the target power value and a power threshold, the signal output power of the first RRU on each channel is adjusted, where the power threshold is determined based on the user historical status information.

[0045] In a third aspect, an embodiment of the present disclosure provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the single-channel four-stream coverage system based on passive frequency conversion described in the first aspect is implemented.

[0046] The single-channel four-stream coverage system based on passive frequency conversion provided by the embodiment of the present disclosure includes a power controller, a first radio frequency remote unit RRU, a second RRU, a three-port multi-frequency combiner, a coupler, a two-port multi-frequency combiner and a passive frequency conversion antenna, wherein: the first RRU is used to output a signal with data information, and the power controller is used to control the signal output power of the first RRU; the three-port multi-frequency combiner is used to combine the signals transmitted from the three channels; the coupler is used to divide the received signal equally, and the two-port multi-frequency combiner is used to combine the divided signals sent by the coupler; the passive frequency conversion antenna is used to output the combined signal sent by the two-port multi-frequency combiner to the outside world. The three-channel signals generated by the first RRU and the one-channel signal generated by the second RRU are transmitted to the passive frequency conversion antenna through the various components in the above system, that is, the four-stream coverage effect can be achieved through the single-channel feeder distribution system. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] To more clearly illustrate the technical solutions of the present disclosure or the prior art, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. The drawings described below are some embodiments of the present disclosure. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0048] FIG1 is a schematic structural diagram of a single-channel four-stream coverage system based on passive frequency conversion provided by an embodiment of the present disclosure.

[0049] FIG2 is a schematic diagram of the overall system and signals of a single-channel four-stream coverage system based on passive frequency conversion provided by an embodiment of the present disclosure.

[0050] FIG3 is a schematic diagram of the structure of a power controller provided by an embodiment of the present disclosure.

[0051] FIG4 is a schematic structural diagram of a first RRU provided in an embodiment of the present disclosure.

[0052] FIG5 is a schematic structural diagram of a passive frequency-variable antenna provided in an embodiment of the present disclosure.

[0053] FIG6 is a flow chart of an energy consumption control method provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0054] To make the objectives, technical solutions, and advantages of the present disclosure more clear, the technical solutions of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0055] Referring to Figure 1, Figure 1 is a schematic diagram of the structure of a single-channel four-stream coverage system based on passive frequency conversion in an embodiment of the present disclosure. The single-channel four-stream coverage system based on passive frequency conversion provided by the embodiment of the present disclosure may include a power controller, a first remote radio unit (RRU), a second RRU, a three-port multi-frequency combiner, a coupler, a two-port multi-frequency combiner, and a passive frequency conversion antenna, wherein:

[0056] The power controller is connected to the first RRU, the first RRU is used to output a signal with data information, and the power controller is used to control the signal output power of the first RRU;

[0057] The first RRU is connected to the three-port multi-frequency combiner via three channels, and the three-port multi-frequency combiner is used to combine signals transmitted through the three channels;

[0058] The three-port multi-frequency combiner is connected to the two-port multi-frequency combiner via the coupler, the coupler is used to equally divide the received signal to obtain an equalized signal, and the two-port multi-frequency combiner is used to combine the equalized signals sent by the coupler to obtain a combined signal;

[0059] The two-port multi-frequency combiner is connected to the passive frequency-variable antenna, and the passive frequency-variable antenna is used to output the combined signal sent by the two-port multi-frequency combiner to the outside world;

[0060] The second RRU is connected to the coupler via a single channel;

[0061] The three signals generated by the first RRU and the one signal generated by the second RRU are transmitted to the passive frequency-variable antenna through the three channels, the single channel, the three-port multi-frequency combiner, the coupler, and the two-port multi-frequency combiner.

[0062] Specifically, with reference to Figure 1, the embodiment of the present disclosure provides an example of a system for solving the technical problem of staggered coverage of a four-story building. The system includes four remote passive frequency-converting antennas, one power controller, one 5G frequency-converting RRU (i.e., the first RRU in this embodiment), one 2G / 4G RRU (i.e., the second RRU in this embodiment), two three-port multi-frequency combiners, four two-port multi-frequency combiners, four couplers, and four distribution systems. The 5G frequency-converting RRU and the four passive frequency-converting antennas are connected in sequence through two three-port multi-frequency combiners, four couplers, four two-port multi-frequency combiners, and four distribution systems.

[0063] As shown in Figure 1, in the single-channel four-stream coverage system based on passive frequency conversion provided by this embodiment, the overall signal transmission path is as follows: signal transmission port 1 (channel 1 in Figure 1), signal transmission port 2 (channel 2 in Figure 1), and signal transmission port 3 (channel 3 in Figure 1) are respectively connected to the input end of the three-port multi-frequency combiner 1. The output end of the three-port multi-frequency combiner 1 is connected to the coupler 1. The coupler 1 splits two identical signals and sends them to the two-port multi-frequency combiner 1 on the fourth layer and the two-port multi-frequency combiner 3 on the second layer. The two-port multi-frequency combiner 1 receives one signal from coupler 1 and one signal from coupler 3, combines these two signals, and transmits them to the distribution system 1 on the fourth layer. The distribution system 1 transmits the combined signal to the remote passive frequency conversion antenna 1. At this time, the passive frequency conversion antenna 1 receives a total of four signals from channels 1, 2, 3, and channel A. Among them, channel A is the Ath channel 2G / 4G signal of the original 2G / 4G RRU. The two-port multi-frequency combiner 3 receives a signal from the coupler 1 and a signal from the coupler 4, combines the two signals, and transmits them to the distribution system 3 on the second layer. The distribution system 3 transmits the combined signal to the remote passive frequency-converting antenna 3. At this time, the passive frequency-converting antenna 3 receives a total of four signals from channel 1, channel 2, channel 3, and channel A.

[0064] Signal transmission port 4 (channel 4 in Figure 1), signal transmission port 5 (channel 5 in Figure 1), and signal transmission port 6 (channel 6 in Figure 1) are respectively connected to the input of three-port multi-frequency combiner 2. The output of three-port multi-frequency combiner 2 is connected to coupler 2. Coupler 2 splits two identical signals and sends them to two-port multi-frequency combiner 2 on the third floor and two-port multi-frequency combiner 4 on the first floor, respectively. Two-port multi-frequency combiner 2 receives one signal from coupler 2 and one signal from coupler 4, combines these two signals, and transmits them to distribution system 2 on the third floor. Distribution system 2 transmits the combined signal to remote passive frequency-converting antenna 2. At this time, the passive frequency-converting antenna receives a total of four signals from channels 4, 5, 6, and channel B, where channel B is the Bth 2G / 4G signal of the original 2G / 4G RRU. The two-port multi-frequency combiner 4 receives a signal from the coupler 2 and a signal from the coupler 4, combines them, and transmits them to the distribution system 4 on the first layer. The distribution system 4 transmits the combined signal to the remote passive frequency-converting antenna 4. At this time, the passive frequency-converting antenna 4 receives a total of four signals from channel 4, channel 5, channel 6, and channel B.

[0065] As shown in FIG2 , this embodiment further provides a signal receiving process for implementing a single-channel four-stream solution:

[0066] When the power controller is in full load state, the 5G frequency conversion RRU outputs power at full load, and channels 1-6 are all fully loaded. For example, channel 1 transmits a signal S1 with a frequency of 2.6GHz and a bandwidth of 100M and data information; channel 2 transmits a signal SA2 with a frequency of 1.4GHz and a bandwidth of 100M and data information; channel 3 transmits a signal SB2 with a frequency of 1.2GHz and a bandwidth of 100M and data information; signals S1, SA2, and SB2 are respectively input to the three-port multi-frequency combiner 1, which combines these three signals and the three-port multi-frequency combiner 1 combines the combined signal S1 +SA2+SB2 is sent to coupler 1, and coupler 1 splits the signal S1+SA2+SB2 into two signals with half the power and unchanged frequency. Since the frequencies and information carried by the two separated signals remain unchanged, and the power only affects the terminal coverage but does not affect the frequency and information, the two separated signals can continue to be regarded as S1+SA2+SB2. Furthermore, coupler 1 outputs the two signals S1+SA2+SB2 to the second port of the two-port multi-frequency combiner 1 and the first port of the two-port multi-frequency combiner 3, respectively.

[0067] Channel 4 transmits a signal S3 with a frequency of 2.6 GHz and a bandwidth of 100 MHz, channel 5 transmits a signal SA4 with a frequency of 1.4 GHz and a bandwidth of 100 MHz, and channel 6 transmits a signal SB4 with a frequency of 1.2 GHz and a bandwidth of 100 MHz. Signals S3, SA4, and SB4 are respectively input into the three-port multi-frequency combiner 2. The three-port multi-frequency combiner 2 combines the three signals and sends the combined signal S3+SA4+SB4 to the coupler 2. The coupler 2 outputs the two signals S3+SA4+SB4 to the first port of the two-port multi-frequency combiner 2 and the first port of the two-port multi-frequency combiner 4, respectively.

[0068] Channel A of the existing distributed system's 2G / 4G RRU sends a non-2.6 GHz, 1.4 GHz, and 1.2 GHz signal A to coupler 3. Coupler 3 couples signal A and splits it into two signals with half the power and the same frequency. Coupler 3 then sends the two signals A to the first port of two-port multi-frequency combiner 1 and the second port of two-port multi-frequency combiner 3, respectively.

[0069] Channel B of the 2G / 4G RRU sends a non-2.6 GHz, 1.4 GHz, and 1.2 GHz signal B to coupler 4. Coupler 4 couples signal B into two signals with half the power and unchanged frequency. Coupler 4 sends signal B to the second port of two-port multi-frequency combiner 2 and the second port of two-port multi-frequency combiner 4.

[0070] Furthermore, the two-port multi-frequency combiner 1 combines the signal A with the signal S1+SA2+SB2 to obtain the signal A+S1+SA2+SB2, and sends the signal A+S1+SA2+SB2 to the distribution system 1. After receiving the signal, the distribution system 1 transmits the signal to the passive frequency conversion antenna 1. The passive frequency conversion antenna 1 identifies the signal A+S1+SA2+SB2, filters out the 1.4GHz frequency signal SA2 and the 1.2GHz frequency signal SB2 through the internal filter of the antenna, and then the mixer combines the signal A+S1+SA2+SB2. It mixes the signal into signal S2 and sends it to the vertical array of the passive frequency-converting antenna, which then sends it into free space. The filter inside the antenna can also identify the 2.6GHz signal S1 and the 2G / 4G signal A, and sends the signals S1 and A to the vertical array of the passive frequency-converting antenna, which then sends them into free space. Therefore, the passive frequency-converting antenna 1 will ultimately emit the 2.6GHz signal S1, the 2.6GHz signal S2, and the 2G / 4G signal A, namely S1+S2+A.

[0071] Furthermore, the two-port multi-frequency combiner 2 combines signal B with signal S3+SA4+SB4 to obtain signal B+S3+SA4+SB4, and sends the signal to the distribution system 2. After receiving the signal, the distribution system 2 transmits the signal to the passive frequency conversion antenna 2. The passive frequency conversion antenna 2 identifies the signal B+S3+SA4+SB4, filters out the 1.4 GHz frequency signal SA4 and the 1.2 GHz frequency signal SB4 through the internal filter of the antenna, and then mixes them into signal S4 by the mixer. The signal S4 is sent to the vertical array of the passive frequency conversion antenna, and then sent to free space by the vertical array. The filter inside the antenna will also identify the 2.6 GHz frequency signal S3 and the 2G / 4G signal B, and send the signal S3 and signal B to the vertical array of the passive frequency conversion antenna. Therefore, the passive frequency conversion antenna 2 will eventually emit the 2.6 GHz signal S3, the 2.6 GHz signal S4 and the 2G / 4G signal B, that is, S3+S4+B.

[0072] Furthermore, the two-port multi-frequency combiner 3 combines the signal A with the signal S1+SA2+SB2 to obtain the signal A+S1+SA2+SB2, and sends the signal A+S1+SA2+SB2 to the distribution system 3. After receiving the signal, the distribution system 3 transmits the signal to the passive frequency conversion antenna 3. The passive frequency conversion antenna 3 identifies the signal A+S1+SA2+SB2, filters out the 1.4GHz frequency signal SA2 and the 1.2GHz frequency signal SB2 through the internal filter of the antenna, and then the mixer combines the signal A+S1+SA2+SB2. It mixes the signal into signal S2 and sends it to the vertical array of the passive frequency-converting antenna, which then sends it to free space. The filter inside the antenna can also identify the 2.6GHz signal S1 and the 2G / 4G signal A, and sends the signals S1 and A to the vertical array of the passive frequency-converting antenna, which then sends them to free space. Therefore, the passive frequency-converting antenna 3 will eventually emit the 2.6GHz signal S1, the 2.6GHz signal S2, and the 2G / 4G signal A, that is, S1+S2+A.

[0073] Furthermore, the two-port multi-frequency combiner 4 combines signal B with signal S3+SA4+SB4 to obtain signal B+S3+SA4+SB4, and sends the signal to the distribution system 4. After receiving the signal, the distribution system 4 transmits the signal to the passive frequency conversion antenna 4. The passive frequency conversion antenna 4 identifies the signal B+S3+SA4+SB4, filters out the 1.4 GHz frequency signal SA4 and the 1.2 GHz frequency signal SB4 through the internal filter of the antenna, and then mixes them into signal S4 by the mixer. The signal S4 is sent to the vertical array of the passive frequency conversion antenna, and then sent to the free space by the vertical array; the filter inside the antenna will also identify the 2.6 GHz frequency signal S3 and the 2G / 4G signal B, and send the signal S3 and signal B to the vertical array of the passive frequency conversion antenna. Therefore, the passive frequency conversion antenna 4 will eventually emit the 2.6 GHz signal S3, the 2.6 GHz signal S4 and the 2G / 4G signal B, that is, S3+S4+B.

[0074] Since the signal emitted by the passive frequency-convertible antenna 1 can be sent from the 4th floor through one floor to the 3rd floor, the signal emitted by the passive frequency-convertible antenna 2 can be sent from the 3rd floor through one floor to the 2nd floor, and the signal emitted by the passive frequency-convertible antenna 3 can be sent from the 2nd floor through one floor to the 1st floor. Therefore, the terminal located on the 4th floor can receive both the signals S1, S2, and A sent by the passive frequency-convertible antenna 1 and the signals S3, S4, and B sent by the passive frequency-convertible antenna 2; the terminals located on the 1st, 2nd, and 3rd floors (i.e., not the top floor, the 4th floor) can receive a total of four 5G signals, namely S1, S2, S3, and S4. Therefore, the single-channel feeder distribution system provided in this embodiment can achieve a four-stream coverage effect.

[0075] This embodiment can achieve a four-stream coverage effect through a single-channel feeder distribution system.

[0076] In one embodiment, the power controller provided by the embodiment of the present disclosure includes a variable frequency RRU monitor, a variable frequency RRU channel power regulator, an RRU state reading device, an initial condition input unit, and a calculation unit; the variable frequency RRU channel power regulator is respectively connected to the first RRU and the calculation unit; the variable frequency RRU monitor is respectively connected to the RRU state reading device and the calculation unit, wherein the variable frequency RRU monitor includes a variable frequency RRU traffic monitor, a variable frequency RRU energy consumption monitor, and a variable frequency RRU user number monitor; the RRU state reading device is connected to the first RRU; the initial condition input unit is connected to the calculation unit; wherein:

[0077] The RRU status reading device is used to read the operating information of the first RRU;

[0078] The variable frequency RRU monitor is used to extract the number of connected users, energy consumption information and uplink and downlink traffic rates from the operation information;

[0079] The initial condition input unit is used to obtain user historical status information;

[0080] The calculation unit is used to control the signal output power of the first RRU in each channel based on the number of connected users, the energy consumption information, the uplink and downlink traffic rates, and the user historical status information.

[0081] Specifically, as shown in Figure 3, the power controller includes a variable frequency RRU channel power regulator, a variable frequency RRU user count monitor, a variable frequency RRU traffic monitor, a variable frequency RRU energy consumption monitor, a calculation unit, and an initial condition input unit. The RRU status reading device is externally connected to the 5G variable frequency RRU, and the RRU status reading device is internally connected to the variable frequency RRU user count monitor, the variable frequency RRU traffic monitor, and the variable frequency RRU energy consumption monitor, respectively. The variable frequency RRU user count monitor, the variable frequency RRU traffic monitor, and the variable frequency RRU energy consumption monitor are connected to the calculation unit, which is also connected to the initial condition input unit. The calculation unit is externally connected to the 5G variable frequency RRU.

[0082] The RRU status reading device is used to read the current operation information record of the 5G frequency conversion RRU. The frequency conversion RRU user number monitor reads the real-time number of connected users N of the 5G frequency conversion RRU from the current operation information record, the frequency conversion RRU energy consumption monitor reads the real-time energy consumption information W of the 5G frequency conversion RRU from the current operation information record, and the frequency conversion RRU traffic monitor reads the real-time sum of the uplink and downlink traffic rates G of the 5G frequency conversion RRU from the current operation information record. The initial condition input unit obtains the initial state information input by the user and the state information of the previous period of time. The calculation unit calculates parameters based on the above information, and the parameters can determine how to control the signal output power of the first RRU in each channel.

[0083] In this embodiment, the power controller is used to adjust the signal output power of the first RRU in each channel, thereby saving energy consumption.

[0084] In one embodiment, the first RRU provided by the embodiment of the present disclosure includes a high-speed interface module, a target signal transceiver, a power amplifier PA, a low-noise amplifier LNA, a circulator, a radio frequency module RF switch, a standing wave monitoring circuit, a high-power load, a first grounder, a second grounder, a non-frequency shifting filter, and a frequency shifting filter, wherein:

[0085] The high-speed interface module is connected to the three-port multi-frequency combiner via a target signal transceiver device, which includes a non-frequency-shifted signal transceiver device and a frequency-shifted signal transceiver device;

[0086] The target signal transceiver is connected to the three-port multi-frequency combiner via the PA, the circulator, and the non-frequency shifting filter (or the frequency shifting filter) in sequence;

[0087] The target signal transceiver and the standing wave monitoring circuit are connected in sequence via the LNA and the RF switch;

[0088] The target signal transceiver device is connected to the first grounder in sequence through the LNA, the RF switch and the high-power load;

[0089] The frequency-shift signal transceiver device is connected to the second grounder in sequence through the PA, the circulator, the RF switch, and the high-power load.

[0090] Specifically, as shown in Figure 4, the 5G frequency conversion RRU includes a high-speed interface module, a non-frequency-shifted signal transceiver, a frequency-shifted signal transceiver, a power amplifier (PA), a low-noise amplifier (LPA), a circulator, an RF module (RF switch), a standing wave monitoring circuit, a high-power load, a grounder, a non-frequency-shifted filter, a frequency-shifted filter, a power module, and an expansion interface. The 5G frequency conversion RRU provided in this embodiment differs from existing 5G frequency conversion RRUs in that it is a 6-channel RRU. Therefore, the high-speed interface module is connected to two non-frequency-shifted signal transceivers and two frequency-shifted signal transceivers, respectively.

[0091] Specifically, the non-frequency-shifted signal transceiver 1 is connected to PA1, PA1 is connected to circulator 1, circulator 1 is connected to non-frequency-shifted filter 1, and non-frequency-shifted filter 1 is connected to an external three-port multi-frequency combiner 1. Specifically, the non-frequency-shifted signal transceiver 1 is also connected to LNA 1; LNA 1 is connected to RF switch 1; RF switch 1 is also connected to circulator 1, standing wave monitoring circuit 1, and high-power load 1 respectively; and high-power load 1 is connected to grounder 1.

[0092] Specifically, the frequency-shift signal transceiver 1 is respectively connected to PA2, PA3 and LNA2; PA2 is connected to the circulator 2; the circulator 2 is connected to the RF switch 2; the RF switch 2 is connected to the high-power load 2; the high-power load 2 is connected to the grounder 2; the circulator 2 is also connected to the frequency-shift filter 1; the frequency-shift filter 1 is connected to the external three-port multi-frequency combiner 1; PA3 is connected to the circulator 3; the circulator 3 is connected to the RF switch 3; the circulator 3 is also connected to the frequency-shift filter 2; the frequency-shift filter 2 is connected to the external three-port multi-frequency combiner 1; the LNA2 is connected to the RF switch 3; the RF switch 3 is also respectively connected to the standing wave monitoring circuit 2 and the high-power load 3; the high-power load 3 is connected to the grounder 3.

[0093] Specifically, the non-frequency-shifted signal transceiver 2 is connected to PA 4; PA 4 is connected to a circulator 4; circulator 4 is connected to a non-frequency-shifted filter 2; and non-frequency-shifted filter 2 is connected to an external three-port multi-frequency combiner 2. Specifically, the non-frequency-shifted signal transceiver 2 is also connected to an LNA 3; the LNA 3 is connected to an RF switch 4; the RF switch 4 is also connected to the circulator 4, the standing wave monitoring circuit 3, and a high-power load 4; and the high-power load 4 is connected to a grounder 4.

[0094] Specifically, the frequency-shift signal transceiver 2 is respectively connected to PA5, PA6 and LNA4; PA5 is connected to the circulator 5; the circulator 5 is connected to the RF switch 5; the RF switch 5 is connected to the high-power load 5; the high-power load 5 is connected to the grounder 5; the circulator 5 is also connected to the frequency-shift filter 3; the frequency-shift filter 3 is connected to the external three-port multi-frequency combiner 2; PA6 is connected to the circulator 6; the circulator 6 is connected to the RF switch 6; the circulator 6 is also connected to the frequency-shift filter 4; the frequency-shift filter 4 is connected to the external three-port multi-frequency combiner 2; the LNA4 is connected to the RF switch 6; the RF switch 6 is also respectively connected to the standing wave monitoring circuit 4 and the high-power load 6; the high-power load 6 is connected to the grounder 6.

[0095] This embodiment achieves a four-stream coverage effect through a 6-channel RRU that is different from the existing 5G frequency conversion RRU.

[0096] In one embodiment, the three-port multi-frequency combiner provided by the present disclosure includes a signal input receiver, a combining device, and a signal outputter, wherein:

[0097] One end of the combiner is connected to the signal input receiver, and the other end is connected to the signal output device;

[0098] The combining device is used to combine non-co-frequency signals transmitted by the signal input receiver, and send the combined signal through the signal output device.

[0099] Specifically, the three-port multi-frequency combiner includes a signal input receiver 1, a signal input receiver 2, a signal input receiver 3, a combiner, and a signal output. Signal input receivers 1, 2, and 3 are each connected to one end of the combiner and send three signals of different frequencies to the combiner. The other end of the combiner is connected to the signal output. The combiner combines the three different signals and inputs them to the signal output, which then transmits them to the outside world. Signal input receiver 1 can receive signals in the frequency range of 2515Hz-2675Hz; signal input receiver 2 can receive signals in the frequency range of 1370Hz-1470Hz; signal input receiver 3 can receive signals in the frequency range of 1145Hz-1245Hz; and the signal output can output signals in the frequency range of 800Hz-2700Hz.

[0100] Similar to a three-port multi-frequency combiner, a two-port multi-frequency combiner consists of a signal input receiver A, a signal input receiver B, a combiner, and a signal output. Receivers A and B are each connected to one end of the combiner and transmit multiple signals of different frequencies to the combiner. The other end of the combiner is connected to the signal output, which then transmits the signals to the outside world. Both receivers A and B can receive signals in the 800Hz-2700Hz frequency range, while the signal output can transmit signals in the 800Hz-2700Hz frequency range.

[0101] This embodiment combines multiple signals by using a three-port multi-frequency combiner and a two-port multi-frequency combiner.

[0102] In one embodiment, the single-channel four-stream coverage system based on passive frequency conversion provided by the embodiment of the present disclosure may further include a distribution system, wherein:

[0103] One end of the distribution system is connected to the two-port multi-frequency combiner, and the other end is connected to the passive frequency-variable antenna;

[0104] The distribution system is used to transmit the signal sent by the two-port multi-frequency combiner to the passive frequency-changing antenna.

[0105] Specifically, as shown in Figure 1, one side of the distribution system 1 is connected to the two-port multi-frequency combiner 1, and the other side is connected to the passive frequency-converting antenna 1. The distribution system 1 transmits the signal sent by the two-port multi-frequency combiner 1 to the passive frequency-converting antenna 1; one side of the distribution system 2 is connected to the two-port multi-frequency combiner 2, and the other side is connected to the passive frequency-converting antenna 2. The distribution system 2 transmits the signal sent by the two-port multi-frequency combiner 2 to the passive frequency-converting antenna 2; one side of the distribution system 3 is connected to the two-port multi-frequency combiner 3, and the other side is connected to the passive frequency-converting antenna 3. The distribution system 3 transmits the signal sent by the two-port multi-frequency combiner 3 to the passive frequency-converting antenna 3; one side of the distribution system 4 is connected to the two-port multi-frequency combiner 4, and the other side is connected to the passive frequency-converting antenna 4. The distribution system 4 transmits the signal sent by the two-port multi-frequency combiner 4 to the passive frequency-converting antenna 4.

[0106] In this embodiment, the signal sent by the two-port multi-frequency combiner is transmitted to the passive frequency-changing antenna through a distribution system.

[0107] In one embodiment, the coupler provided by the embodiment of the present disclosure is used to evenly split a received signal into two signals with the same frequency and half the power.

[0108] Specifically, as described above, the coupler is used to evenly split the received signal into two signals with the same frequency and half the power. While the above embodiment only provides staggered-floor coverage for a four-story building, staggered-floor coverage for higher floors can be achieved by adding a coupler to the schematic diagram of the single-channel, four-stream coverage system based on passive frequency conversion shown in Figure 1.

[0109] This embodiment achieves staggered coverage of higher floors through the action of the coupler.

[0110] In one embodiment, the passive frequency-variable antenna provided by the embodiment of the present disclosure includes a signal input port, a frequency shift module, a vertically polarized radiating unit, and a horizontally polarized radiating unit, wherein:

[0111] The signal input port is connected to the two-port multi-frequency combiner and the frequency shift module respectively;

[0112] The vertical polarization radiation unit and the horizontal polarization radiation unit are both connected to the frequency shift module.

[0113] The signal input port is used to classify various signals;

[0114] The frequency shift module is used to directly pass a part of the signals in each channel and perform superposition frequency shift on another part of the signals in each channel;

[0115] The vertically polarized radiation unit is used to output the direct signal;

[0116] The horizontally polarized radiation unit is used to output the signal with superimposed frequency shift.

[0117] Specifically, as shown in Figure 5, the internal and external functions and structures of the passive frequency-variable antennas 1-4 are completely consistent, including a signal input port, a frequency shift module, a vertically polarized radiating unit, and a horizontally polarized radiating unit. The signal input port is used to receive signals sent by the distribution system and classify the received signals. The frequency shift module directly passes or frequency-shifts the multiple signals transmitted from the signal input port. The 2.6GHz signal sent from 5G RRU channel 1 or channel 2 and the signal sent from 2 / 4G RRU channel A or channel B remain unchanged and are output to the outside world by the vertically polarized radiating unit; the signal sent from 5G RRU channel 2 + channel 3 or 5G RRU channel 5 + channel 6 is superimposed and frequency-shifted, and after the frequency is shifted to 2.6GHz, it is emitted by the horizontally polarized radiating unit.

[0118] In this embodiment, the multi-path signals received by the source frequency conversion antenna are sent to the outside world for reception by the terminal.

[0119] 6, which is a flow chart of an energy consumption control method according to an embodiment of the present disclosure. The energy consumption control method provided by the embodiment of the present disclosure may include:

[0120] Step 100: determining a target power value based on the number of connected users, the energy consumption information, the uplink and downlink traffic rates, and the user historical status information;

[0121] Step 200: Adjust the signal output power of the first RRU on each channel based on a comparison result between the target power value and a power threshold, where the power threshold is determined based on the user historical status information.

[0122] Specifically, the initial state information input by the user and the state information for the previous day obtained by the initial condition input unit include peak time period T1, normal time period T2, off-peak time period T3, maximum number of users N-max, proportionality coefficient K, proportionality coefficient L-low, average number of users by time period, average energy consumption data by time period, and average traffic flow per hour in the previous period. A user QoS function G / N×K is set and initially configured based on the actual conditions of the communication operator. The set QoS must not be lower than the service value lower limit L-low (i.e., the proportionality coefficient L-low).

[0123] An AI optimization algorithm based on historical data learning dynamically adjusts the power of 5G variable-frequency RRUs based on historical data characteristics and corresponding QoS ratios. When the algorithm is first started, the training samples are data that traverses all state parameters. After running for one week, the algorithm's training samples should be retrained by obtaining some historical data from the previous week. The specific model used is the random forest model, and its algorithm mainly includes the following steps:

[0124] 1. Select n samples from the sample set by random sampling with replacement.

[0125] 2. Randomly select k features from all eigenvalues, and use these features to build a decision tree for the selected samples (usually generated by the CART method, and each tree is not pruned).

[0126] 3. Repeat the above two steps m times to generate m decision trees and form a random forest.

[0127] 4. For new data, each tree makes a decision and finally votes to confirm which category it is classified into.

[0128] When the number of real-time connected users N = 0, 5G frequency-converting RRU channels 1 and 4 operate at half power, while channels 2, 3, 5, and 6 are shut down to conserve energy. When the number of real-time connected users N exceeds 0, channels 1 and 4 operate at full power to ensure QoS. Channels 2, 3, 5, and 6 adjust their power based on real-time, dynamically changing thresholds Y1, Y2, and Y3 derived from an AI optimization algorithm based on historical data learning. This AI optimization algorithm, based on historical data learning, can be expressed as Y = F(N, W, G, N-max, K, L-low). This function is influenced by historical data such as the average number of users by time period, average energy consumption by time period, and average hourly traffic flow over the previous period. When function Y2>Y>=Y1, channels 2 and 3 are closed, channels 1, 4, 5, and 6 are opened and output at full power; when function Y3>Y>=Y2, channels 1-6 are opened, and channels 1 and 2 are kept at full power output, but the power output of channels 2, 3, 5, and 6 is max[50%, (Y-Y2) / (Y3-Y2)]; when Y>=Y3, channels 1-6 are opened and full load output is maintained.

[0129] This embodiment achieves energy saving for a single-channel four-stream coverage system through an artificial intelligence optimization algorithm based on historical data learning.

[0130] On the other hand, an embodiment of the present disclosure further provides a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the computer can execute the steps of the energy consumption control method provided in the above embodiments.

[0131] The embodiments of the present disclosure can be arbitrarily combined to form new embodiments if no conflict occurs, and the present disclosure does not impose any limitation on this.

[0132] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0133] Through the description of the above embodiments, those skilled in the art will clearly understand that each embodiment can be implemented using software plus a necessary general-purpose hardware platform, or of course, hardware. Based on this understanding, the essence of the above technical solution, or the portion that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, or an optical disk, and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the single-channel four-stream coverage system based on passive frequency conversion described in various embodiments or certain portions of the embodiments.

[0134] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. A single-channel four-stream coverage system based on passive frequency conversion, comprising a power controller, a first remote radio unit (RRU), a second RRU, a three-port multi-frequency combiner, a coupler, a two-port multi-frequency combiner, and a passive frequency conversion antenna, wherein: The power controller is connected to the first RRU, the first RRU is used to output a signal with data information, and the power controller is used to control the signal output power of the first RRU; The first RRU is connected to the three-port multi-frequency combiner via three channels, and the three-port multi-frequency combiner is used to combine signals transmitted through the three channels; The three-port multi-frequency combiner is connected to the two-port multi-frequency combiner via the coupler, the coupler is used to equally divide the received signal to obtain an equalized signal, and the two-port multi-frequency combiner is used to combine the equalized signals sent by the coupler to obtain a combined signal; The two-port multi-frequency combiner is connected to the passive frequency-variable antenna, and the passive frequency-variable antenna is used to output the combined signal sent by the two-port multi-frequency combiner to the outside world; The second RRU is connected to the coupler via a single channel; The three signals generated by the first RRU and the one signal generated by the second RRU are transmitted to the passive frequency-variable antenna through the three channels, the single channel, the three-port multi-frequency combiner, the coupler, and the two-port multi-frequency combiner.

2. The system according to claim 1, wherein: The power controller includes a variable frequency RRU monitor, a variable frequency RRU channel power regulator, an RRU status reading device, an initial condition input unit, and a calculation unit; the variable frequency RRU channel power regulator is connected to the first RRU and the calculation unit respectively; the variable frequency RRU monitor is connected to the RRU status reading device and the calculation unit respectively, wherein the variable frequency RRU monitor includes a variable frequency RRU traffic monitor, a variable frequency RRU energy consumption monitor, and a variable frequency RRU user number monitor; the RRU status reading device is connected to the first RRU; the initial condition input unit is connected to the calculation unit; wherein: The RRU status reading device is used to read the operating information of the first RRU; The variable frequency RRU monitor is used to extract the number of connected users, energy consumption information and uplink and downlink traffic rates from the operation information; The initial condition input unit is used to obtain user historical status information; The calculation unit is used to control the signal output power of the first RRU in each channel based on the number of connected users, the energy consumption information, the uplink and downlink traffic rates, and the user historical status information.

3. The system according to claim 1, wherein: The first RRU includes a high-speed interface module, a target signal transceiver, a power amplifier PA, a low-noise amplifier LNA, a circulator, a radio frequency module RF switch, a standing wave monitoring circuit, a high-power load, a first grounder, a second grounder, a non-frequency shifting filter, and a frequency shifting filter, wherein: The high-speed interface module is connected to the three-port multi-frequency combiner via a target signal transceiver device, which includes a non-frequency-shifted signal transceiver device and a frequency-shifted signal transceiver device; The target signal transceiver is connected to the three-port multi-frequency combiner via the PA, the circulator, and the non-frequency shifting filter or the frequency shifting filter in sequence; The target signal transceiver and the standing wave monitoring circuit are connected in sequence via the LNA and the RF switch; The target signal transceiver device is connected to the first grounder in sequence through the LNA, the RF switch and the high-power load; The frequency-shift signal transceiver device is connected to the second grounder in sequence through the PA, the circulator, the RF switch, and the high-power load.

4. The system according to claim 1, wherein: The three-port multi-frequency combiner includes a signal input receiver, a combining device and a signal output device, wherein: One end of the combiner is connected to the signal input receiver, and the other end is connected to the signal output device; The combining device is used to combine non-co-frequency signals transmitted by the signal input receiver, and send the combined signal through the signal output device.

5. The system according to claim 1, wherein The single-channel four-stream coverage system based on passive frequency conversion also includes a distribution system, wherein: One end of the distribution system is connected to the two-port multi-frequency combiner, and the other end is connected to the passive frequency-variable antenna; The distribution system is used to transmit the signal sent by the two-port multi-frequency combiner to the passive frequency-changing antenna.

6. The system according to claim 1, wherein: The coupler is used to evenly divide the received signal into two signals with the same frequency and half the power.

7. The system according to claim 1, wherein: The passive frequency-variable antenna includes a signal input port, a frequency shift module, a vertically polarized radiation unit, and a horizontally polarized radiation unit, wherein: The signal input port is connected to the two-port multi-frequency combiner and the frequency shift module respectively; The vertical polarization radiation unit and the horizontal polarization radiation unit are both connected to the frequency shift module.

8. The system according to claim 7, wherein: The signal input port is used to classify various signals; The frequency shift module is used to directly pass a part of the signals in each channel and perform superposition frequency shift on another part of the signals in each channel; The vertically polarized radiation unit is used to output the direct signal; The horizontally polarized radiation unit is used to output the signal with superimposed frequency shift.

9. An energy consumption control method, applied to the single-channel four-stream coverage system based on passive frequency conversion according to any one of claims 1 to 8, the energy consumption control method comprising: Determining a target power value based on the number of connected users, the energy consumption information, the uplink and downlink traffic rates, and the user historical status information; as well as Based on a comparison result between the target power value and a power threshold, the signal output power of the first RRU on each channel is adjusted, where the power threshold is determined based on the user historical status information.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein: When the computer program is executed by a processor, the energy consumption control method as claimed in claim 9 is implemented.

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