A power sharing method, unit, device, storage medium and product

Abstract

This invention discloses a power sharing method, unit, device, storage medium, and product. The antenna array of a single coverage sector is divided into a first antenna group with antenna beams pointing to low altitude and a second antenna group with antenna beams pointing to the ground. This eliminates the need for additional low-altitude coverage equipment and additional back-end radio frequency remote units, reducing costs and construction difficulty. Furthermore, by redistributing the power of radio frequency signals carrying the same basic component signals sent from different ports of the radio frequency remote unit to the first antenna group and / or the second antenna group, the power utilization rate of the radio frequency remote unit is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and more specifically, to a power sharing method, unit, device, storage medium, and product. Background Technology

[0002] In existing low-altitude-ground combined coverage scenarios, additional low-altitude coverage equipment is typically used separately for low-altitude coverage. The downlink power allocation of this equipment mainly relies on static or semi-static power control algorithms, usually based on preset power allocation rules such as maximum power allocation, equal power allocation, or channel quality-based power allocation. However, additional low-altitude coverage equipment requires larger rooftop areas and additional remote radio units (RRUs), increasing cost and construction complexity; static or semi-static power allocation methods do not effectively utilize the equipment's power. Summary of the Invention

[0003] Based on this, the present invention provides a power sharing method, unit, device, storage medium and product, which can distribute multiple radio frequency signals carrying the same basic component signal to antennas in the same antenna array whose beams point to low altitude and / or whose beams point to the ground after redistributing the power, without the need to add additional low-altitude coverage equipment, reducing costs and construction difficulty, and effectively improving the utilization rate of equipment power.

[0004] To achieve the above objectives, embodiments of the present invention provide a power sharing method for receiving radio frequency signals transmitted from different ports of a radio frequency remote unit;

[0005] Power redistribution is performed on the radio frequency signals carrying the same fundamental component signals;

[0006] The radio frequency signal, after power redistribution, is sent to a first antenna group and / or a second antenna group; wherein the first antenna group is an antenna in a single coverage sector whose antenna beam is pointed to low altitude; and the second antenna group is an antenna in the antenna array whose antenna beam is pointed to the ground.

[0007] To achieve the above objectives, embodiments of the present invention also provide a power sharing unit. The signal input terminal of the power sharing unit is used to receive radio frequency signals transmitted from different ports of a radio frequency remote unit. The power sharing unit is used to redistribute power among the radio frequency signals carrying the same fundamental component signals. The signal output terminal of the power sharing unit is used to send the redistributed radio frequency signals to a first antenna group and / or a second antenna group. The first antenna group is an antenna in a single coverage sector antenna array whose antenna beam points towards low altitude. The second antenna group is an antenna in the antenna array whose antenna beam points towards the ground.

[0008] To achieve the above objectives, embodiments of the present invention also provide a power sharing device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the power sharing method as described in any of the above embodiments.

[0009] To achieve the above objectives, embodiments of the present invention also provide a computer-readable storage medium, the computer-readable storage medium including a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to perform the power sharing method as described in any of the above embodiments.

[0010] To achieve the above objectives, embodiments of the present invention also provide a computer program product, including a computer program / instructions, which, when executed by a processor, implement the steps of the power sharing method as described in any of the above embodiments.

[0011] Compared with existing technologies, the power sharing method, unit, device, storage medium, and product disclosed in this invention first receive radio frequency signals transmitted from at least two ports of a radio frequency remote unit, then redistribute the power of the radio frequency signals carrying the same fundamental component signal, and finally transmit the power-redistributed radio frequency signals to a first antenna group and / or a second antenna group. The first antenna group is an antenna in a single coverage sector antenna array whose antenna beam points to low altitude; the second antenna group is an antenna in the antenna array whose antenna beam points to the ground. Therefore, in this invention, the antenna array of a single coverage sector is divided into a first antenna group with antenna beams pointing to low altitude and a second antenna group with antenna beams pointing to the ground. This eliminates the need for additional low-altitude coverage equipment and additional back-end radio frequency remote units, reducing costs and construction difficulty. Furthermore, by redistributing the power of radio frequency signals carrying the same fundamental component signal transmitted from different ports of the radio frequency remote unit to the first antenna group and / or the second antenna group, the power utilization rate of the radio frequency remote unit is effectively improved. Attached Figure Description

[0012] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic flowchart of a power sharing method provided in an embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of the architecture of a power sharing device in a low-altitude-ground joint coverage scenario provided by an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the antenna beam of an antenna array provided in an embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of a power sharing unit provided in an embodiment of the present invention;

[0017] Figure 5 This is a schematic diagram of the structure of a power sharing unit provided in an embodiment of the present invention;

[0018] Figure 6 This is a schematic diagram of the structure of a power sharing unit provided in an embodiment of the present invention;

[0019] Figure 7 This is a schematic diagram of the structure of a power sharing unit provided in an embodiment of the present invention;

[0020] Figure 8 This is a schematic diagram of the structure of a primary sharing device provided in an embodiment of the present invention;

[0021] Figure 9 This is a schematic diagram of the structure of a power sharing device provided in an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] See Figure 1 , Figure 1 This is a flowchart illustrating a power sharing method according to an embodiment of the present invention. Specifically, the power sharing method is applied to a terminal, the terminal including a positioning function module, a calculation module, and a user identification card, and the power sharing method includes steps S11 to S13:

[0024] S11. Receive radio frequency signals transmitted from different ports of the radio frequency remote unit;

[0025] S12. Perform power redistribution on the radio frequency signals carrying the same basic component signals;

[0026] S13. The radio frequency signal, after power redistribution, is sent to the first antenna group and / or the second antenna group; wherein the first antenna group is an antenna in a single coverage sector whose antenna beam is pointed to the low altitude; and the second antenna group is an antenna in the antenna array whose antenna beam is pointed to the ground.

[0027] It is worth noting that in existing technologies, the Building Baseband Unit (BBU), Remote Radio Unit (RRU), and antenna are crucial components of a base station in a mobile communication system. They work closely together to process and transmit signals. Generally, the BBU is the core processing unit of the base station, primarily responsible for encoding, modulating, and multiplexing baseband signals. It interacts with the core network, processes baseband signals from the core network, and then sends them to the RRU via optical fiber or other transmission media. The RRU is mainly responsible for processing radio frequency (RF) signals. It receives baseband signals from the BBU, converts them into RF signals, performs power amplification, and then transmits the RF signals to the antenna for transmission via a feeder. The RRU is typically installed close to the antenna to reduce signal loss during transmission. Simultaneously, the RRU also receives signals from the antenna, converts them into baseband signals, and sends them to the BBU for processing. The antenna is the device that converts RF signals into electromagnetic waves for transmission, and it also receives electromagnetic waves from the air and converts them back into RF signals. The RRU, BBU, and antenna work together. The BBU processes baseband signals, the RRU converts and amplifies baseband signals to radio frequency signals, and the antenna transmits and receives radio frequency signals. Together, they complete the transmission process of signals from the base station to the mobile terminal and from the mobile terminal to the base station in the mobile communication system, thereby realizing the communication connection between mobile users.

[0028] For example, in low-altitude-ground joint coverage scenarios, to reduce base station construction costs and difficulties, and effectively improve the power utilization of the remote radio unit (RRU), a power sharing unit is arranged between the RRU and the antenna array. The power sharing unit can be arranged in various base station types, such as existing 700MHz, 2.6GHz, or 4.9GHz base stations. See [link to relevant documentation]. Figure 2 , Figure 2This is a schematic diagram of the architecture of a power-sharing device in a low-altitude-ground joint coverage scenario. The power-sharing device includes a BBU, RRU, power-sharing unit, and antenna array connected in series. The antenna array is divided into antenna group 1 and antenna group 2. One antenna group serves as the first antenna group, with its antenna beam pointing towards the low altitude; the other antenna group serves as the second antenna group, with its antenna beam pointing towards the ground. The power-sharing unit executes the power-sharing method. Its signal input terminal connects to the RRU, receives radio frequency signals from different ports of the RRU, and then adjusts the power of radio frequency signals carrying the same fundamental component signal. After power adjustment, the fundamental component signal is extracted and sent to the corresponding antenna group.

[0029] Compared with the prior art, in this embodiment of the invention, the antenna array of a single coverage sector is divided into a first antenna group with antenna beams pointing to low altitude and a second antenna group with antenna beams pointing to the ground. This eliminates the need for additional low-altitude coverage equipment and additional back-end radio frequency remote units, reducing costs and construction difficulty. Furthermore, by redistributing the power of radio frequency signals carrying the same basic component signals sent from different ports of the radio frequency remote unit to the first antenna group and / or the second antenna group, the power utilization rate of the radio frequency remote unit is improved.

[0030] In a preferred embodiment, based on steps S11 to S13, before step S12, the method further includes:

[0031] The antenna array is divided into a first antenna group and a second antenna group;

[0032] The antenna beam of the first antenna group is controlled to point towards the low sky, and the antenna beam of the second antenna group is controlled to point towards the ground.

[0033] Specifically, see Figure 3 , Figure 3 This is a schematic diagram of the antenna beam of an antenna array. A portion of the antennas in an antenna array covering a single coverage sector are assigned to the first antenna group, whose antenna beam serves as a low-altitude beam pointing towards the low atmosphere; the remaining antennas are assigned to the second antenna group, whose antenna beam serves as a ground beam pointing towards the ground. The antenna beam pointing can be adjusted using mechanical or electrical phase adjustment.

[0034] In a preferred embodiment, the method is applied to a power sharing unit, wherein the signal input terminal of the power sharing unit is used to connect to the radio frequency remote unit, and the signal output terminal of the power sharing unit is used to connect the first antenna group and the second antenna group; the power sharing unit is formed by connecting at least one layer of sharing sub-units in series, each layer of the sharing sub-unit includes at least one first-level sharing device, and each first-level sharing device has at least two input terminals; the input terminal of the first-level sharing device of the first layer of the sharing sub-unit is used to connect to the output terminal of the radio frequency remote unit, and the output terminal of the first-level sharing device of the last layer of the sharing sub-unit is used to connect to the first antenna group and the second antenna group.

[0035] Preferably, the power sharing unit is formed by connecting at least one layer of shared sub-units in series, and each layer of the shared sub-units includes 2 N-1 Each of the first-level sharing devices has two input terminals and two output terminals; the input terminals of the first-level sharing devices of the first-layer sharing subunit are used to connect to the output terminals of the radio frequency remote unit, and the output terminals of the first-level sharing devices of the last-layer sharing subunit are used to connect to the first antenna group and the second antenna group; where N is a positive integer.

[0036] For example, using a primary sharing device as the basic component, at least one layer of sharing sub-units is constructed. All sharing sub-units are connected in series to form a power sharing unit. The input terminal of the primary sharing device of the first-layer sharing sub-unit is used to connect to the output terminal of the radio frequency remote unit (RFR) to receive the RF signal transmitted by the RFR. In the power sharing unit, the primary sharing device is used to adjust the power of RF signals carrying the same basic component signals, thereby realizing power sharing of the RFR. Finally, the output terminal of the last layer of sharing sub-unit sends the power-adjusted RF signal to the corresponding antenna group. For example, when N equals 1, the power sharing unit has only one sharing sub-unit, and the sharing sub-unit has only one primary sharing device. One input terminal of this primary sharing device is used to connect to the output terminal P1 of the RRU, and the other input terminal is used to connect to the output terminal P2 of the RRU. One output terminal o1 of this primary sharing device is used to connect to the input terminal of the first antenna group, and the other output terminal o2 is used to connect to the input terminal of the second antenna group.

[0037] In a preferred embodiment, when parameter N in the above embodiments is greater than 2, or when N equals 2 and the power sharing unit is obtained by sequentially connecting two layers of shared subunits, one output terminal of all the first-level shared devices in the z-th part of the a-th layer shared subunit is connected one-to-one with the input terminal of all the first-level shared devices in the 2(z-1)+1-th part of the a+1-th layer shared subunit; the other output terminal of all the first-level shared devices in the z-th part of the a-th layer shared subunit is connected one-to-one with the input terminal of all the first-level shared devices in the 2(z-1)+2-th part of the a+1-th layer shared subunit; wherein, a is greater than or equal to 1 and less than or equal to N-1, and the a-th layer shared subunit is divided into 2 a-1 For some cases, z is greater than or equal to 1 and less than or equal to 2. a-1 .

[0038] See one example. Figure 4 , Figure 4 This is a schematic diagram of a power sharing unit provided in an embodiment of the present invention. This power sharing unit is used to achieve power sharing across four RRU ports. It consists of a secondary sharing device composed of primary sharing devices 1 to 4, serving as the power sharing unit. Primary sharing devices 3 and 4 are the first-layer sharing sub-units, and primary sharing devices 1 and 2 are the second-layer sharing sub-units. The antenna array is divided into antenna group 1 and antenna group 2. One antenna group serves as the first antenna group, with its antenna beam pointing towards low altitude; the other antenna group serves as the second antenna group, with its antenna beam pointing towards the ground. The RRU has four independent ports P1 to P4. The energy from P1 to P4 passes through a secondary sharing device and is output through the four ports o1 to o4 of the secondary sharing device. The output ports o1 to o4 can be connected to the input ports i1 to i4 of antenna group 1 and antenna group 2 in any order. At this time, power sharing will be achieved between ports P1, P2, P3, and P4: the signals of ports P1 and P2 first pass through the first-level sharing device 3, and then are connected to one input terminal of the first-level sharing devices 1 and 2 respectively; the signals of ports P3 and P4 first pass through the first-level sharing device 4, and then are connected to the other port of the first-level sharing devices 1 and 2 respectively.

[0039] In another example, see Figure 5 , Figure 5This is a schematic diagram of a power sharing unit provided in an embodiment of the present invention. This power sharing unit is used to achieve power sharing across eight RRU ports. It consists of a three-level sharing device composed of primary sharing devices 1-4 and secondary sharing devices 1 and 2. The primary sharing devices 1-4 serve as the first-level sharing sub-units, while the secondary sharing devices 1 and 2 include second-level and third-level sharing sub-units. The RRU outputs eight independent ports P1-P8. The output signals of every two ports are passed through a primary sharing device and then distributed to the two secondary sharing devices at the next level. Power sharing across the three levels is achieved between ports P1-P8. Output ports O1-O8 can be connected to the input ports i1-i8 of antenna group 1 and antenna group 2 in any order, where the number of ports in antenna group 1 and antenna group 2 is selectable.

[0040] In another example, see Figure 6 , Figure 6 This is a schematic diagram of a power sharing unit provided in an embodiment of the present invention. This power sharing unit is used to implement 2 N The power of each RRU port is shared by primary sharing devices 1 to 2. N-1 N-1 level sharing devices 1 and 2 constitute an N-level sharing device, serving as a power sharing unit. Specifically, level 1 sharing devices 1 and 2... N-1 As the first-level shared subunit, the N-1 level shared devices 1 and 2 include second to Nth level shared subunits, each level containing 2 N-1 One primary power sharing device, the power sharing unit includes 2 N One input terminal, 2 N There are one output terminal, and every two input terminals correspond to one level-one shared device. The two output terminals of a level-one shared device are respectively connected to two N-1 level-one shared devices.

[0041] Therefore, it can be seen that the embodiments of the present invention support power sharing between two ports, four ports, eight ports and N ports of the RRU.

[0042] In a preferred embodiment, when parameter N equals 2 in any of the above embodiments and the power sharing unit has only one layer of the sharing sub-unit, the input terminal of the first-level sharing device is used to connect one-to-one with the output terminal of the radio frequency remote unit; one of the output terminals of the first-level sharing device is used to connect to the first antenna group, and the other output terminal of the first-level sharing device is used to connect to the second antenna group.

[0043] For example, see Figure 7 , Figure 7This is a schematic diagram of a power sharing unit provided in an embodiment of the present invention. The power sharing unit is used to realize power sharing between dual RRU ports. It consists of a first-level sharing device 1 and a second-level sharing device 2. The four ports P1 to P4 of the RRU output independently. The output signals of P1 and P2 are fed to antenna group 1 and antenna group 2 respectively through the first-level sharing device 1. The output signals of P3 and P4 are fed to another port of antenna group 1 and another port of antenna group 2 respectively through the first-level sharing device 2. Power sharing exists between port P1 and port P2, and between port P3 and port P4.

[0044] In a preferred embodiment, the primary sharing device in any of the above embodiments includes a 3dB directional coupler, wherein the input end of the 3dB directional coupler serves as the input end of the primary sharing device, and the output end of the 3dB directional coupler serves as the output end of the primary sharing device.

[0045] Alternatively, the primary sharing device may consist of a power calibration network and the 3dB directional coupler, with the input of the power calibration network serving as the input of the primary sharing device and the output of the 3dB directional coupler serving as the output of the primary sharing device.

[0046] For example, see Figure 8 , Figure 8 This is a schematic diagram of a primary sharing device provided in an embodiment of the present invention. Using this primary sharing device as a power sharing unit, the power calibration network calibrates the same signal power amplitude of the P1 and P2 ports of the RRU to be the same, and then the power sharing between the P1 and P2 ports is realized through a four-port 3dB directional coupler.

[0047] In a preferred embodiment, based on any of the embodiments mentioned above and the sharing device, step S12, which involves power redistribution of the radio frequency signals carrying the same basic component signals, includes:

[0048] During a set time period in the broadcast phase, the input terminal of the first-level shared device based on the first-layer shared subunit receives broadcast radio frequency signals transmitted by all output terminals of the radio frequency remote unit; wherein, the broadcast radio frequency signal is associated with one of the antenna groups of the first antenna group and the second antenna group, and the intersection of the basic component signals of all the broadcast radio frequency signals input to the same first-level shared device is a non-empty set;

[0049] The power sharing unit performs a power superposition operation on the broadcast radio frequency signal;

[0050] Based on the output of the first-level shared device of the last layer shared subunit, a broadcast radio frequency signal after power superposition operation is sent to the first antenna group.

[0051] Specifically, for any of the power-sharing units mentioned above, during the broadcast phase, the low-altitude beam and the ground beam broadcast at full power in a time-division manner. In time period 1, all port power of a single RRU is allocated to the first antenna group; in time period 2, all port power of a single RRU is allocated to the second antenna group.

[0052] In one example:

[0053] based on Figure 4 or Figure 7 The power sharing unit shown, in time period 1, assumes that one port of antenna group 1 needs to receive broadcast signal s1 and the other port needs to receive broadcast signal s2. These two signals are orthogonal. During the RRU output signal configuration phase, the output signal of port P1 is configured as s1, and the output signal of port P2 is configured as -j*s1 (the basic component signals of s1 and -j*s1 are both s1), where j is an imaginary number; the output signal of port P3 is configured as s2, and the output signal of port P4 is configured as -j*s2 (the basic component signals of s2 and -j*s2 are both s2).

[0054] In time period 2, assuming that one port of antenna group 2 needs to transmit broadcast signal s3 and the other port needs to transmit broadcast signal s4; during the RRU output signal configuration phase, the output signal of port P1 is configured as -j*s3, the output signal of port P2 is configured as s3 (the basic component signals of s3 and -j*s3 are both s3); the output signal of port P3 is configured as -j*s4, and the output signal of port P4 is configured as s4 (the basic component signals of s4 and -j*s4 are both s4).

[0055] After the output signal configuration is completed, in time period 1, signal s1 is output from port P1 and signal -j*s1 is output from port P2. In time period 2, signal s2 is output from port P3 and signal -j*s2 is output from port P4. In each time period, the power sharing unit performs power superposition on the same basic component signal and sends the power superimposed basic component signal to the corresponding port of the corresponding antenna group.

[0056] In another example:

[0057] based on Figure 4 The power sharing unit shown is used to implement power sharing during the broadcast phase. Assuming... Figure 4In the diagram, o1 is connected to i1, o2 is connected to i2, o3 is connected to i3, and o4 is connected to i4. During time period 1, it is assumed that port i1 of antenna group 1 receives broadcast signal s1, and port i2 receives broadcast signal s2, with the two signals exhibiting orthogonality. During the RRU output signal configuration phase, the output signal of port P1 is configured as s1-j*s2, and the output signal of port P2 is configured as -j*s1-s2 (the basic component signals of s1-j*s2 and -j*s1-s2 both include s1 and s2), where j is an imaginary number; the output signal of port P3 is configured as -j*s1+s2, and the output signal of port P4 is configured as -s1-j*s2 (the basic component signals of -j*s1+s2 and -s1-j*s2 both include s1 and s2).

[0058] In time period 2, it is assumed that port i3 of antenna group 2 needs to receive broadcast signal s3 and port i4 needs to receive broadcast signal s4, and the two signals are orthogonal. In the RRU output signal configuration stage, the output signal of port P1 is configured as -j*s3-s4, the output signal of port P2 is configured as s3-j*s4, the output signal of port P3 is configured as -s3-j*s4, and the output signal of port P4 is configured as -j*s3+s4, where j is an imaginary number. The basic component signals of these four signal configurations all include s3 and s4.

[0059] After the output signal configuration is completed, ports P1 to P4 output the corresponding radio frequency signals according to the output signal configuration for each time period. Then, the same basic component signals are superimposed in the power sharing unit. In time period 1, the superimposed basic component signal s1 is sent to port i1 of antenna group 1 through port o1, and the superimposed basic component signal s2 is sent to port i2 of antenna group 1 through port o2. In time period 2, the superimposed basic component signal s3 is sent to port i3 of antenna group 2 through port o3, and the superimposed basic component signal s4 is sent to port i4 of antenna group 2 through port o4.

[0060] In another example:

[0061] based on Figure 5 The power sharing unit shown is used to implement power sharing during the broadcast phase. Figure 5 In the middle antenna groups 1 and 2, the number of ports is k=4, where o1 is connected to i1, o2 is connected to i2, o2 is connected to i3, o4 is connected to i4, o5 is connected to i5, o6 is connected to i6, o7 is connected to i7, and o8 is connected to i8.

[0062] In time period 1, it is assumed that port i1 of antenna group 1 needs to receive broadcast signal s1, port i2 needs to receive broadcast signal s2, port i3 needs to receive broadcast signal s3, and port i4 needs to receive broadcast signal s4. There is orthogonality between the four signals. During the RRU output signal configuration phase, the output signal of port P1 is configured as s1-j*s2-j*s3-s4, the output signal of port P2 is configured as -j*s1-s2-s3+j*s4, the output signal of port P3 is configured as -j*s1-s2+s3-j*s4, the output signal of port P4 is configured as -s1+j*s2-j*s3-s4, the output signal of port P5 is configured as -j*s1+s2-s3-j*s4, the output signal of port P6 is configured as -s1-j*s2-j*s3-s4, the output signal of port P7 is configured as -s1-j*s2-j*s3+s4, and the output signal of port P8 is configured as j*s1-s2-s3-j*s4.

[0063] In time period 2, it is assumed that port i5 of antenna group 2 needs to receive broadcast signal s5, port i6 needs to receive broadcast signal s6, port i7 needs to receive broadcast signal s7, and port i8 needs to receive broadcast signal s8. The four signals are orthogonal. During the RRU output signal configuration phase, the output signal of port P1 is configured as -j*s5-s6-s7+j*s8, the output signal of port P2 is configured as s5-j*s6-j*s3-s8, the output signal of port P3 is configured as -s5+j*s6-j*s7-s8, the output signal of port P4 is configured as -j*s5-s6+s7-j*s8, the output signal of port P5 is configured as -s5-j*s6-j*s7-s8, the output signal of port P6 is configured as -j*s5+s6-s7-j*s8, the output signal of port P7 is configured as j*s5-s6-s7-j*s8, and the output signal of port P8 is configured as -s5-j*s6-j*s7+s8.

[0064] After the output signal configuration is completed, ports P1 to P8 output the corresponding radio frequency signals according to the output signal configuration in each time period. Then, the same basic component signals are superimposed in the power sharing unit. In time period 1, the superimposed basic component signal s1 is sent to port i1 of antenna group 1 via port o1, the superimposed basic component signal s2 is sent to port i2 of antenna group 1 via port o2, the superimposed basic component signal s3 is sent to port i3 of antenna group 1 via port o3, and the superimposed basic component signal s4 is sent to port i4 of antenna group 1 via port o4. In time period 2, the superimposed basic component signal s5 is sent to port i5 of antenna group 2 via port o5, the superimposed basic component signal s6 is sent to port i6 of antenna group 2 via port o6, the superimposed basic component signal s7 is sent to port i7 of antenna group 2 via port o7, and the superimposed basic component signal s8 is sent to port i8 of antenna group 2 via port o8.

[0065] Specifically, for any of the power-sharing units mentioned above, during the broadcast phase, the low-altitude beam and the ground beam broadcast at full power in a time-division manner. In time period 1, all port power of a single RRU is allocated to the first antenna group; in time period 2, all port power of a single RRU is allocated to the second antenna group.

[0066] In a preferred embodiment, based on any of the embodiments mentioned above and the sharing device, step S12, which involves power redistribution of the radio frequency signals carrying the same basic component signals, includes:

[0067] During the service phase, the input terminal of the first-level shared device based on the first-layer shared sub-unit receives the service radio frequency signals transmitted by all output terminals of the radio frequency remote unit; wherein, the service radio frequency signals are associated with the first antenna group and the second antenna group, and the intersection of the basic component signals of all service radio frequency signals input to the same first-level shared device is a non-empty set;

[0068] The power sharing unit performs power adjustment operations on the service radio frequency signal;

[0069] Based on the output of the first-level shared device of the last layer shared sub-unit, the signal associated with the first antenna group in the service radio frequency signal is sent to the first antenna group, and the signal associated with the second antenna group in the service radio frequency signal is sent to the second antenna group.

[0070] Specifically, for any of the power sharing units mentioned above, during the service phase, low-altitude and ground users belong to different RB groups, and the signals of different users are orthogonal. Here, RB stands for Resource Block. The amplitude and phase of the output signals of the two independent ports of the RRU are set by the BBU, and then the power is redistributed between the ports through the power sharing unit.

[0071] In one example:

[0072] based on Figure 7 The power sharing unit shown assumes that one port of antenna group 1 needs to receive signal r1 from RB group 1, and the other port needs to receive signal r2 from RB group 2; one port of antenna group 2 needs to receive signal r3 from RB group 3, and the other port needs to receive signal r4 from RB group 4. Therefore, the output signal of port P1 is configured as r1 - j*r3, the output signal of port P2 is configured as -j*r1 + r3, the output signal of port P3 is configured as r2 - j*r4, and the output signal of port P4 is configured as -j*r2 + r4. After the output signal configuration is completed, ports P1 to P4 output signals r1-j*r3, -j*r1+r3, r2-j*r4, and -j*r2+r4, respectively. In primary sharing devices 1 and 2, the same basic component signals are power adjusted. The power-adjusted basic component signal r1 in primary sharing device 1 is sent to one port of antenna group 1, the power-adjusted basic component signal r2 in primary sharing device 2 is sent to the other port of antenna group 1, the power-adjusted basic component signal r3 in primary sharing device 1 is sent to one port of antenna group 2, and the power-adjusted basic component signal r4 in primary sharing device 2 is sent to the other port of antenna group 2.

[0073] In another example:

[0074] based on Figure 4 The power sharing unit shown assumes Figure 4In the diagram, o1 is connected to i1, o2 to i2, o3 to i3, and o4 to i4. Assume that port i1 of antenna group 1 needs to receive signal r1 from RB group 1, and port i2 needs to receive signal r2 from RB group 2; port i3 of antenna group 2 needs to receive signal r3 from RB group 3, and port i4 needs to receive signal r4 from RB group 4. Then, configure the output signal of port P1 as r1 - j*r2 - j*r3 - r4, the output signal of port P2 as -j*r1 - r2 + r3 - j*r4, the output signal of port P3 as -j*r1 + r2 - r3 - j*r4, and the output signal of port P4 as -r1 - j*r2 - j*r3 + r4. In the primary sharing devices 1 to 4, the same basic component signals are power adjusted. The power-adjusted basic component signals r1 and r2 from primary sharing devices 3 and 4 are sent to primary sharing device 1 for power adjustment, and the power-adjusted basic component signals r3 and r4 from primary sharing devices 3 and 4 are sent to primary sharing device 2 for power adjustment. Then, the power-adjusted basic component signal r1 from primary sharing device 1 is sent to port i1 of antenna group 1 via o1, the power-adjusted basic component signal r2 from primary sharing device 1 is sent to port i2 of antenna group 1 via o2, the power-adjusted basic component signal r3 from primary sharing device 2 is sent to port i3 of antenna group 2 via o3, and the power-adjusted basic component signal r4 from primary sharing device 2 is sent to port i4 of antenna group 2 via o4.

[0075] In another example:

[0076] based on Figure 5 The power sharing unit shown assumes Figure 5 In antenna groups 1 and 2, the number of ports is k=4, where o1 is connected to i1, o2 to i2, o2 to i3, o4 to i4, o5 to i5, o6 to i6, o7 to i7, and o8 to i8. Assume that port i1 of antenna group 1 receives signal r1 from RB group 1, port i2 receives signal r2 from RB group 2, port i3 receives signal r3 from RB group 3, and port i4 receives signal r4 from RB group 4; and port i5 of antenna group 2 receives signal r5 from RB group 5, port i6 receives signal r6 from RB group 6, port i7 receives signal r7 from RB group 7, and port i8 receives signal r8 from RB group 8. Then:

[0077] The output signal of port P1 is configured as r1-j*r2-j*r3-r4-j*r5-r6-r7+j*r8.

[0078] The output signal of port P2 is configured as -j*r1-r2-r3+j*r4+r5-j*r6-j*r7-r8.

[0079] The P3 port output signal is configured as -j*r1-r2+r3-j*r4-r5+j*r6-j*r7-r8.

[0080] The P4 port output signal is configured as -r1+j*r2-j*r3-r4-j*r5-r6+r7-j*r8.

[0081] The P5 port output signal is configured as -j*r1+r2-r3-j*r4-r5-j*r6-j*r7-r8.

[0082] The P6 port output signal is configured as -r1-j*r2-j*r3-r4-j*r5+r6-r7-j*r8.

[0083] The P7 port output signal is configured as -r1-j*r2-j*r3+r4+j*r5-r6-r7-j*r8.

[0084] The output signal of port P8 is configured as j*r1-r2-r3-j*r4-r5-j*r6-j*r7+r8.

[0085] In each primary sharing unit, the same fundamental component signal undergoes power adjustment. After the power sharing unit completes power redistribution, the power-adjusted fundamental component signal r1 is sent to port i1 of antenna group 1 via o1, the power-adjusted fundamental component signal r2 is sent to port i2 of antenna group 1 via o2, the power-adjusted fundamental component signal r3 is sent to port i3 of antenna group 1 via o3, and the power-adjusted fundamental component signal r4 is sent to port i4 of antenna group 1 via o4. The power-adjusted fundamental component signal r5 is sent to port i5 of antenna group 2 via o5, the power-adjusted fundamental component signal r6 is sent to port i6 of antenna group 2 via o6, the power-adjusted fundamental component signal r7 is sent to port i7 of antenna group 2 via o7, and the power-adjusted fundamental component signal r8 is sent to port i8 of antenna group 2 via o8.

[0086] Compared with existing technologies, the power sharing method provided in this invention divides the antenna array of a single coverage sector into a first antenna group with antenna beams pointing towards low altitude and a second antenna group with antenna beams pointing towards the ground. This eliminates the need for additional low-altitude coverage equipment and additional back-end radio frequency remote units, reducing the cost and construction difficulty of low-altitude-ground joint coverage. Furthermore, by redistributing the power of radio frequency signals carrying the same basic component signals transmitted from different ports of the radio frequency remote unit to the first antenna group and / or the second antenna group, the power utilization rate of the radio frequency remote unit is improved, enhancing user access and service capabilities, and improving communication performance. It also fully utilizes the spare energy between multiple independent ports of the RRU, ensuring that the downlink energy of each RB group is the sum of the energy of multiple ports, which is beneficial to the stability of downlink communication quality.

[0087] This invention provides a power sharing unit. The signal input terminal of the power sharing unit is used to receive radio frequency signals transmitted from different ports of a radio frequency remote unit. The power sharing unit is used to redistribute power among the radio frequency signals carrying the same fundamental component signals. The signal output terminal of the power sharing unit is used to send the redistributed radio frequency signals to a first antenna group and / or a second antenna group. The first antenna group is an antenna in a single coverage sector antenna array whose antenna beam points towards low altitude. The second antenna group is an antenna in the antenna array whose antenna beam points towards the ground.

[0088] In one embodiment, before the power sharing unit redistributes power to the radio frequency signals carrying the same fundamental component signals, it further includes:

[0089] The antenna array is divided into a first antenna group and a second antenna group;

[0090] The antenna beam of the first antenna group is controlled to point towards the low sky, and the antenna beam of the second antenna group is controlled to point towards the ground.

[0091] In one embodiment, the signal input terminal of the power sharing unit is used to connect to the radio frequency remote unit, and the signal output terminal of the power sharing unit is used to connect the first antenna group and the second antenna group.

[0092] In one embodiment, the power sharing unit is formed by connecting at least one layer of shared sub-units in series, each layer of the shared sub-units comprising 2 N-1Each of the first-level sharing devices has two input terminals and two output terminals; the input terminals of the first-level sharing devices of the first-layer sharing subunit are used to connect to the output terminals of the radio frequency remote unit, and the output terminals of the first-level sharing devices of the last-layer sharing subunit are used to connect to the first antenna group and the second antenna group; where N is a positive integer.

[0093] In one implementation, when N is greater than 2, or when N equals 2 and the power sharing unit is obtained by sequentially connecting two layers of shared subunits, one output terminal of all the first-level shared devices in the z-th part of the a-th layer shared subunit is connected one-to-one with the input terminal of all the first-level shared devices in the 2(z-1)+1-th part of the a+1-th layer shared subunit; the other output terminal of all the first-level shared devices in the z-th part of the a-th layer shared subunit is connected one-to-one with the input terminal of all the first-level shared devices in the 2(z-1)+2-th part of the a+1-th layer shared subunit; wherein a is greater than or equal to 1 and less than or equal to N-1, and the a-th layer shared subunit is divided into 2 a-1 For some cases, z is greater than or equal to 1 and less than or equal to 2. a-1 .

[0094] In one implementation, when N equals 2 and the power sharing unit has only one layer of the sharing sub-unit, the input terminal of the first-level sharing device is used to connect one-to-one with the output terminal of the radio frequency remote unit; one of the output terminals of the first-level sharing device is used to connect to the first antenna group, and the other output terminal of the first-level sharing device is used to connect to the second antenna group.

[0095] In one embodiment, the primary sharing device includes a 3dB directional coupler, wherein the two input terminals of the 3dB directional coupler serve as the two input terminals of the primary sharing device, and the two output terminals of the 3dB directional coupler serve as the two output terminals of the primary sharing device.

[0096] Alternatively, the primary sharing device may consist of a power calibration network and the 3dB directional coupler, with the two input terminals of the power calibration network serving as the two input terminals of the primary sharing device, and the two output terminals of the 3dB directional coupler serving as the two output terminals of the primary sharing device.

[0097] In one implementation, the power sharing unit redistributes power to the radio frequency signals carrying the same fundamental component signals in the following manner:

[0098] During a set time period in the broadcast phase, the input terminal of the first-level shared device based on the first-layer shared subunit receives broadcast radio frequency signals transmitted by all output terminals of the radio frequency remote unit; wherein, the broadcast radio frequency signal is associated with one of the antenna groups of the first antenna group and the second antenna group, and the intersection of the basic component signals of all the broadcast radio frequency signals input to the same first-level shared device is a non-empty set;

[0099] The power sharing unit performs a power superposition operation on the broadcast radio frequency signal;

[0100] Based on the output of the first-level shared device of the last layer shared subunit, a broadcast radio frequency signal after power superposition operation is sent to the first antenna group.

[0101] In one implementation, the power sharing unit redistributes power to the radio frequency signals carrying the same fundamental component signals in the following manner:

[0102] During the service phase, the input terminal of the first-level shared device based on the first-layer shared sub-unit receives the service radio frequency signals transmitted by all output terminals of the radio frequency remote unit; wherein, the service radio frequency signals are associated with the first antenna group and the second antenna group, and the intersection of the basic component signals of all service radio frequency signals input to the same first-level shared device is a non-empty set;

[0103] The power sharing unit performs power adjustment operations on the service radio frequency signal;

[0104] Based on the output of the first-level shared device of the last layer shared sub-unit, the signal associated with the first antenna group in the service radio frequency signal is sent to the first antenna group, and the signal associated with the second antenna group in the service radio frequency signal is sent to the second antenna group.

[0105] It is worth noting that the specific operation process of the power sharing unit can refer to the operation process of the power sharing method in any of the above embodiments, and will not be repeated here.

[0106] Compared with existing technologies, the power sharing unit disclosed in this invention first receives radio frequency (RF) signals transmitted from at least two ports of the RF remote unit, then redistributes the power of the RF signals carrying the same fundamental component signal, and finally sends the power-redistributed RF signals to the first antenna group and / or the second antenna group. The first antenna group is an antenna in a single coverage sector's antenna array whose antenna beam points to low altitude; the second antenna group is an antenna in the antenna array whose antenna beam points to the ground. Thus, the antenna array of a single coverage sector is divided into a first antenna group with antenna beams pointing to low altitude and a second antenna group with antenna beams pointing to the ground. This eliminates the need for additional low-altitude coverage equipment and additional back-end RF remote units, reducing costs and construction difficulty. Furthermore, by redistributing the power of the RF signals carrying the same fundamental component signal transmitted from different ports of the RF remote unit to the first antenna group and / or the second antenna group, the power utilization rate of the RF remote unit is improved.

[0107] See Figure 9 , Figure 9 This is a schematic diagram of a power-sharing device according to an embodiment of the present invention. The power-sharing device includes a processor 21, a memory 22, and a computer program stored in the memory 22 and configured to be executed by the processor 21. When the processor 21 executes the computer program, it implements the steps as described in the power-sharing method embodiment above, for example... Figure 1 The steps S11 to S13 described above; or, when the processor 21 executes the computer program, it implements the functions of each module in the above-described device embodiments.

[0108] For example, the computer program can be divided into one or more modules, which are stored in the memory 22 and executed by the processor 21 to complete the present invention. The one or more modules can be a series of computer program instruction segments capable of performing specific functions, which describe the execution process of the computer program in the power sharing device. For example, the computer program can be divided into multiple modules, each used to execute a step of the power sharing method described in the above embodiments. The specific working process of each module can be referred to the working process of the power sharing unit described in the above embodiments, and will not be repeated here.

[0109] The power-sharing device can be a desktop computer, laptop, handheld computer, or cloud server, etc. The power-sharing device may include, but is not limited to, a processor 21 and a memory 22. Those skilled in the art will understand that the power-sharing device may also include input / output devices, network access devices, buses, etc.

[0110] The processor 21 can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor. The processor 21 is the control center of the power-sharing device, connecting various parts of the entire power-sharing device through various interfaces and lines.

[0111] The memory 22 can be used to store the computer programs and / or modules. The processor 21 implements various functions of the power sharing device by running or executing the computer programs and / or modules stored in the memory 22 and calling the data stored in the memory 22. The memory 22 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function, etc.; the data storage area may store data created according to the use of the device, etc. In addition, the memory 22 may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0112] If the modules integrated into the power-sharing device are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by the processor 21, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0113] This invention also provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the steps of the power sharing method as described in any of the above embodiments, such as steps S11 to S13.

[0114] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A power sharing method, characterized in that, include: Receives radio frequency signals transmitted from different ports of the radio frequency remote unit; Power redistribution is performed on the radio frequency signals carrying the same fundamental component signals; The radio frequency signal, after power redistribution, is sent to the first antenna group and / or the second antenna group; wherein the first antenna group is an antenna in a single coverage sector antenna array whose antenna beam is pointed to low altitude; The second antenna group is the antenna in the antenna array whose antenna beam points to the ground.

2. The power sharing method as described in claim 1, characterized in that, Before performing power redistribution on the radio frequency signals carrying the same fundamental component signals, the method further includes: The antenna array is divided into a first antenna group and a second antenna group; The antenna beam of the first antenna group is controlled to point towards the low sky, and the antenna beam of the second antenna group is controlled to point towards the ground.

3. The power sharing method as described in claim 1, characterized in that, The method is applied to a power sharing unit, the signal input terminal of which is used to connect to the radio frequency remote unit, and the signal output terminal of which is used to connect to the first antenna group and the second antenna group.

4. The power sharing method as described in claim 3, characterized in that, The power sharing unit is formed by connecting at least one layer of shared sub-units in series, and each layer of the shared sub-units includes 2 N-1 Each of the first-level sharing devices has two input terminals and two output terminals; the input terminals of the first-level sharing devices of the first-layer sharing subunit are used to connect to the output terminals of the radio frequency remote unit, and the output terminals of the first-level sharing devices of the last-layer sharing subunit are used to connect to the first antenna group and the second antenna group; where N is a positive integer.

5. The power sharing method as described in claim 4, characterized in that, When N is greater than 2, or when N equals 2 and the power sharing unit is obtained by connecting two layers of shared subunits in series, one output terminal of all the first-level shared devices in the z-th part of the a-th layer shared subunit is connected one-to-one with the input terminal of all the first-level shared devices in the 2(z-1)+1-th part of the a+1-th layer shared subunit; the other output terminal of all the first-level shared devices in the z-th part of the a-th layer shared subunit is connected one-to-one with the input terminal of all the first-level shared devices in the 2(z-1)+2-th part of the a+1-th layer shared subunit; wherein, a is greater than or equal to 1 and less than or equal to N-1, and the a-th layer shared subunit is divided into 2 a-1 For some parts, z is greater than or equal to 1 and less than or equal to 2. a-1 .

6. The power sharing method as described in claim 4, characterized in that, When N equals 2 and the power sharing unit has only one layer of the sharing sub-unit, the input terminal of the first-level sharing device is used to connect one-to-one with the output terminal of the radio frequency remote unit; one of the output terminals of the first-level sharing device is used to connect to the first antenna group, and the other output terminal of the first-level sharing device is used to connect to the second antenna group.

7. The power sharing method as described in claim 4, characterized in that, The primary sharing device includes a 3dB directional coupler, the two input terminals of which serve as the two input terminals of the primary sharing device, and the two output terminals of which serve as the two output terminals of the primary sharing device. Alternatively, the primary sharing device may consist of a power calibration network and the 3dB directional coupler, with the two input terminals of the power calibration network serving as the two input terminals of the primary sharing device, and the two output terminals of the 3dB directional coupler serving as the two output terminals of the primary sharing device.

8. The power sharing method according to any one of claims 4 to 7, characterized in that, The power redistribution of the radio frequency signals carrying the same fundamental component signals includes: During a set time period in the broadcast phase, the input terminal of the first-level shared device based on the first-layer shared subunit receives broadcast radio frequency signals transmitted by all output terminals of the radio frequency remote unit; wherein, the broadcast radio frequency signal is associated with one of the antenna groups of the first antenna group and the second antenna group, and the intersection of the basic component signals of all the broadcast radio frequency signals input to the same first-level shared device is a non-empty set; The power sharing unit performs a power superposition operation on the broadcast radio frequency signal; Based on the output of the first-level shared device of the last layer shared subunit, a broadcast radio frequency signal after power superposition operation is sent to the first antenna group.

9. The power sharing method according to any one of claims 4 to 7, characterized in that, The power redistribution of the radio frequency signals carrying the same fundamental component signals includes: During the service phase, the input terminal of the first-level shared device based on the first-layer shared sub-unit receives the service radio frequency signals transmitted by all output terminals of the radio frequency remote unit; wherein, the service radio frequency signals are associated with the first antenna group and the second antenna group, and the intersection of the basic component signals of all service radio frequency signals input to the same first-level shared device is a non-empty set; The power sharing unit performs power adjustment operations on the service radio frequency signal; Based on the output of the first-level shared device of the last layer shared sub-unit, the signal associated with the first antenna group in the service radio frequency signal is sent to the first antenna group, and the signal associated with the second antenna group in the service radio frequency signal is sent to the second antenna group.

10. A power sharing unit, characterized in that, The signal input terminal of the power sharing unit is used to receive radio frequency signals transmitted from different ports of the radio frequency remote unit; the power sharing unit is used to redistribute the power of the radio frequency signals carrying the same basic component signal; the signal output terminal of the power sharing unit is used to send the redistributed radio frequency signal to the first antenna group and / or the second antenna group; wherein, the first antenna group is an antenna in a single coverage sector antenna array with its antenna beam pointing to low altitude; the second antenna group is an antenna in the antenna array with its antenna beam pointing to the ground.

11. A power-sharing device, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor, when executing the computer program, implements the power sharing method as described in any one of claims 1 to 9.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program, wherein, when the computer program is executed, it controls the device on which the computer-readable storage medium is located to perform the power sharing method as described in any one of claims 1 to 9.

13. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the power sharing method as described in any one of claims 1 to 9.

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