WO2018040020A1

WO2018040020A1 - Method for adjusting power of antenna signal and base station

Info

Publication number: WO2018040020A1
Application number: PCT/CN2016/097667
Authority: WO
Inventors: 张鹏程
Original assignee: 华为技术有限公司
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2018-03-08
Also published as: CN109644163A

Abstract

Embodiments of the present invention relate to a method for adjusting the power of an antenna signal, comprising: a base station determining N first digital signals according to acquired N baseband digital signals, the power of the signals being the sum of the partial powers of each of four baseband digital signals, where N is a positive integer multiple of 4; obtaining, according to the N first digital signals, N first radio frequency analog signals having the same power as the corresponding N first digital signals, so as to acquire N second radio frequency analog signals, the power of the N second radio frequency analog signals being the sum of the powers in the N first radio frequency analog signals corresponding to the same baseband data signals in the N first digital signals, and the powers of the second radio frequency analog signals being the same as the powers of baseband digital signals corresponding thereto; and sending the second radio frequency analog signals by using an antenna, so that powers from a plurality of feed channels mutually converge and are sent to a same antenna, overcoming the problem of the limited rated power of a single feed channel and greatly increasing the power of a multi-antenna system.

Description

Method for adjusting antenna signal power and base station

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a method and a base station for adjusting antenna signal power.

Background technique

In the mobile communication network engineering design, the base station antenna is reasonably selected according to the actual conditions such as network coverage requirements, traffic distribution, anti-interference requirements, and network service quality. The vertical dimension of a general antenna adopts a fixed single-drive, power-divided, weight network, that is, the network is used to drive an antenna array of the same vertical dimension by a feed channel, and the antenna element in the vertical dimension is based on its own weight. The signal power in the feed channel is evenly divided. Usually, after the base station antenna is selected, the downtilt angle of the base station antenna needs to be adjusted to adjust the coverage area of the base station antenna signal. At present, the downtilt angle of the antenna is mainly adjusted by means of ESC.

In the prior art shown in FIG. 1, the antenna adopts a directional crossing positive/negative 45°, a polarized array of 4 columns, and a total of 8 transmission channels. The antenna adopts two sets of electric phase modulation units to generate a plurality of downtilt angles for the antenna elements of the horizontal dimension to meet the requirements of the antenna coverage of the multiple scenes, and the two sets of electric phase modulation units respectively receive the radio remote unit (RRU). The two analog signals, the RRU receives two baseband digital signals from a baseband unit (BBU), wherein the channel of the RRU transmission signal is a feed channel. However, the transmitting and receiving relationship of the feeding channel of the RRU to the corresponding antenna is fixed, and the rated power of each feeding channel connected to the electric phase modulating unit is also fixed, in the case where the rated power of the feeding channel is limited, The feed channels correspond to one antenna array, and the signal power of the multiple feed channels can only be transmitted to the RF analog signals of each independent tilt angle to form antenna groups, that is, the grouped RF analog signals can only be sent by the corresponding antennas. Go out. Such as The rated power of each feed channel of the RRU is 20W, and the maximum power of the RF analog signals transmitted by each group of antennas is also 20W. Correspondingly, the maximum power of the RF analog signals received by each group of antennas is also 20W.

Therefore, the antenna of the base station in the prior art cannot adjust the signal strength and the coverage area for different scenarios. For example, for a large-area open scene, the antenna cannot increase the coverage by increasing the power of the transmitted RF analog signal, thereby giving Users bring a poor experience.

Summary of the invention

The present application describes a method and base station for adjusting antenna signal power to overcome the problem of limited power rating of a single feed channel.

In a first aspect, a method for adjusting antenna signal power is provided. The method may include: determining, by the base station, N first digital signals according to the obtained N baseband digital signals, where the power of the first digital signal is 4 baseband digital signals. The sum of the partial powers of each of the baseband digital signals, wherein part of the power may be one-half or one-quarter of the power of the baseband digital signal, and the four baseband digital signals are included in the N baseband digital signals, N is 4 A positive integer multiple, after which the base station performs analog-to-digital conversion processing on the N first digital signals to obtain N first radio frequency analog signals, the power of the first radio frequency analog signal is the same as the power of the first digital signal, and the first radio frequency The analog signal is in one-to-one correspondence with the first digital signal. The base station acquires N second radio frequency analog signals according to the N first radio frequency analog signals, where the power of the N second radio frequency analog signals is the same baseband data as the N first radio frequency analog signals and the N first digital signals The sum of the powers corresponding to the signals; the N second radio frequency analog signals correspond to the N baseband digital signals, and the power of any one of the N second radio frequency analog signals is the same as the power of the corresponding baseband digital signal, and finally The base station transmits N second radio frequency analog signals through the antenna. Therefore, the power between the multiple feed channels is mutually aggregated and sent to the same antenna, which solves the problem that the rated power of the single feed channel is limited, and greatly improves the coverage area of the antenna and the transmitted signal strength.

In an optional implementation, before the base station determines the N first digital signals according to the obtained N baseband digital signals, the base station determines, according to the obtained N baseband digital signals, an M-dimensional unitary matrix, where M is a positive integer of 4. Times, the base station is based on N baseband digital signals and the matrix of the M-dimensional matrix The transposition is multiplied to determine the N first digital signals. After the base station passes the N baseband digital signals through the weighting process of the unitary matrix, the obtained N first digital signals are allocated to the plurality of feed channels, so that the power of the first digital signal received by the feed channel of each RRU is lower than The rated power of the feed channel, that is, the flexible allocation of power between multiple antennas, and the transmission of signals, solves the problem of limited power rating of the single feed channel.

In an optional implementation, the base station determines the N first digital signals according to the N baseband digital signals, and specifically includes: the base station multiplies the row matrix formed by the N baseband digital signals by the transposition of the N-dimensional unitary matrix, Determining the first matrix, the base station extracts N first digital signals from the first matrix, realizes flexible power allocation between multiple antennas, and transmits signals, and solves the problem of limited power limitation of the single feed channel.

In an optional implementation, the base station acquires N second radio frequency analog signals according to the N first radio frequency analog signals, where the base station: the base station passes the N first radio frequency analog signals through the bridge network to obtain N second radio frequencies. The analog signal, and the power of any one of the N second RF analog signals is the same as the power of the corresponding baseband digital signal. The power corresponding to the same baseband data signal in the N first digital signals is superimposed on the first radio frequency analog signal allocated on the plurality of feed channels, and is aggregated to the corresponding antenna.

In an alternative implementation, the bridge network includes a first bridge subnetwork and a second bridge subnetwork. The base station passes the N first radio frequency analog signals through the bridge network to obtain N second radio frequency analog signals. The power of the N second radio frequency analog signals is the sum of the powers of the N first radio frequency analog signals corresponding to the same baseband data signals of the N first digital signals, and specifically includes: the base station sets N first radio frequency analog signals Obtaining N third radio frequency analog signals by using the first bridge sub-network, wherein the power of each of the N third radio frequency analog signals is two, and the two first radio frequency analog signals comprise two The sum of the powers corresponding to the same baseband data signal in the first digital signal. The base station passes the N third radio frequency analog signals through the second bridge subnetwork to obtain N second radio frequency analog signals, where the N second radio frequency analog signals correspond to N baseband digital signals, and the N second radio frequency analog signals The power of any one of the second RF analog signals is the same as the power of its corresponding baseband digital signal.

In an optional implementation, the first bridge subnetwork and the second bridge subnetwork may each include two co-frequency combiners.

In an optional implementation, before the N baseband digital signals are weighted by the unitary matrix, the base station can expand the coefficients of the baseband digital signal to increase the power of the baseband digital signal, thereby improving the coverage area of the antenna and the transmitted signal strength.

In a second aspect, another method for adjusting antenna signal power is provided. The method may include: the base station receives N radio frequency analog signals, and N is a positive integer multiple of 4. The base station acquires N first radio frequency analog signals according to the N radio frequency analog signals, where the power of the first radio frequency analog signal is a sum of partial powers of each of the four radio frequency analog signals, and part of the power may be a baseband digital signal. One-half or one-quarter of the power, four RF analog signals are included in the N RF analog signals. Then, the base station acquires N first digital signals according to the N first radio frequency analog signals, where the power of the first digital signal is the same as the power of the first radio frequency analog signal, and the first radio frequency analog signal has a one-to-one correspondence with the first digital signal. Finally, the base station obtains N baseband digital signals from the N first digital signals, and the N baseband digital signals correspond to N radio frequency analog signals, and the power of any one of the N baseband digital signals and the corresponding radio frequency analog signal The power is the same. Thereby, the power between the multiple feed channels is mutually aggregated and sent to the same antenna, which overcomes the problem that the rated power of the single feed channel is limited, and greatly improves the coverage area of the antenna and the received signal strength.

In an optional implementation, the base station acquires N first radio frequency analog signals according to the N radio frequency analog signals, and specifically includes: the base station passes the N radio frequency analog signals through the bridge network to obtain N first radio frequency analog signals, where The bridge network can include a first bridge subnetwork and a second bridge subnetwork. The base station obtains N second radio frequency analog signals by using the first radio frequency analog signals according to the N radio frequency analog signals, where the power of any one of the N second radio frequency analog signals is 2 radio frequency The sum of the powers of one-half of each of the RF analog signals in the analog signal. The base station obtains N first radio frequency analog signals by using the N second radio frequency analog signals, where the power of any one of the N first radio frequency analog signals is 4 The sum of the partial powers of each RF analog signal in the RF analog signal. N shots can be used by this method The power of the frequency analog signal is distributed over multiple feed channels so that the signal can be transmitted on the feed channel.

In an optional implementation, the base station obtains the baseband digital signal from the first digital signal, and specifically includes: the base station performs matrix processing on the first digital signal to obtain the first matrix. The base station decomposes the first matrix into a row matrix formed by the second digital signal and multiplies the M-dimensional matrix transposition to extract a second digital signal. The second digital signal is a baseband digital signal, and M is a positive integer multiple of 4. In this way, powers corresponding to the same radio frequency analog signals in the N radio frequency analog signals included in the N first digital signals on the N feed channels are superimposed, thereby solving the limited power rating of the single feed channel. The problem.

In a third aspect, there is provided a base station having the function of implementing the behavior of the base station in the actual method of the above claims 1-6. This function can be implemented in hardware or in hardware by executing the corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In a fourth aspect, there is provided another base station having the function of implementing the behavior of the base station in the actual method of the above claims 7-10. This function can be implemented in hardware or in hardware by executing the corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In a fifth aspect, there is provided another base station corresponding to the third aspect, the base station comprising: a processing circuit and a transmitter. The processing circuit is configured to determine N first digital signals according to the obtained N baseband digital signals, wherein the power of the first digital signal is a sum of partial powers of each of the baseband digital signals of the four baseband digital signals, and four baseband digital signals Included in the N baseband digital signals, N is a positive integer multiple of 4. The processing circuit is further configured to acquire N first radio frequency analog signals according to the N first digital signals, where the power of the first radio frequency analog signal is the same as the power of the first digital signal, and acquiring N according to the N first radio frequency analog signals The second radio frequency analog signal, the power of the N second radio frequency analog signals is the same baseband data signal as the N first radio frequency analog signals and the N first digital signals The sum of the corresponding powers. The N second radio frequency analog signals correspond to the N baseband digital signals, and the power of any one of the N second radio frequency analog signals is the same as the power of the corresponding baseband digital signal. The transmitter is configured to send N second radio frequency analog signals through the antenna.

In a sixth aspect, there is provided another base station corresponding to the fourth aspect, the base station comprising: a receiver and a processing circuit. The receiver is used by the base station to receive N radio frequency analog signals, and N is a positive integer multiple of 4. The processing circuit is configured to obtain N first radio frequency analog signals according to the N radio frequency analog signals received by the receiver, where the power of the first radio frequency analog signal is a sum of partial powers of each of the four radio frequency analog signals, 4 The radio frequency analog signals are included in the N radio frequency analog signals, and the N first digital signals are obtained according to the N first radio frequency analog signals, and the power of the first digital signal is the same as the power of the first radio frequency analog signal. The processing circuit is further configured to acquire N baseband digital signals from the N first digital signals, the N baseband digital signals correspond to N radio frequency analog signals, and the power of any one of the N baseband digital signals corresponds to the power of the baseband digital signal The power of the RF analog signal is the same.

In an optional implementation, the base station can also include a memory for coupling with the processing circuit to store the necessary program instructions and data for the base station.

In still another aspect, a computer storage medium is provided for storing computer software instructions for use by the base station, comprising a program designed to perform the above aspects.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without any creative work.

1 is a schematic structural view of an adjustment antenna system in the prior art;

2 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an antenna according to an embodiment of the present disclosure;

FIG. 4 is a flowchart of a method for adjusting antenna signal power according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a bridge network unit according to an embodiment of the present disclosure;

FIG. 6 is a flowchart of another method for adjusting antenna signal power according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of a possible structure of a base station according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of another possible structure of a base station according to an embodiment of the present disclosure;

FIG. 9 is a second schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 10 is a second schematic diagram of another possible structure of a base station according to an embodiment of the present disclosure;

detailed description

The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments.

The method for electrically adjusting the antenna signal power provided by the present invention can be applied to a Long Term Evolution (LTE) system, or other wireless communication systems using various radio access technologies, for example, using code division multiple access, frequency division multiple access. , time division multiple access, orthogonal frequency division multiple access, single carrier frequency division multiple access and other access technology systems. In addition, it can also be applied to the subsequent evolution system using the LTE system, such as the fifth generation 5G system and the like.

In the base station shown in FIG. 2, the base station may include a baseband processing unit BBU 110, a radio remote unit RRU 120, a bridge network 130, an electric phase modulating unit 140, and an antenna 150.

The antenna 150 is configured to receive a radio frequency analog signal of the user and send the radio frequency analog signal to the user, and the antenna may include multiple sets of sub-antennas.

The BBU 110 and the RRU 120 are optically transmitted, and the RRU 120, the bridge network 130, and the electric phase modulation unit 140 are connected by a coaxial cable and connected to the antenna 150. The BBU 110 may be a 4-input 4-output unit or a 16-input 16-output unit composed of a plurality of BBUs 110. The RRU 120 may be a 4-input 4-output unit or a plurality of RRUs 120. A 16-input 16-output unit.

The electric phase modulating unit 140 can adjust the downtilt angle of the antenna, so that the radio frequency analog signals received and transmitted by the antenna have different coverage areas, thereby adapting to various application scenarios, such as an open space scene or a city in the countryside. Intensive scene of the town. If the antenna is divided into four sets of sub-antennas, each set of sub-antennas will be equipped with an electric phase-modulating unit to adjust the tilt angle of each set of sub-antennas. The electric phase modulating unit 140 may be a mechanism composed of an electric motor (such as a stepping motor) and a conveyor including a microstrip line.

The bridge network 130 can perform power aggregation on the radio frequency analog signal sent by the RRU 120, and can perform power allocation on the radio frequency analog signal received by the antenna, so as to realize the transmission and reception of the antenna when the RRU 120 feed channel is limited in power. Signal power adjustment.

The bridge network 130 may be a network device composed of four co-frequency combiners (also called 90° bridges), or a network device composed of 4M co-frequency combiners, and M is a positive integer. The same frequency combiner can continuously sample the power of the transmitted RF analog signal in a certain direction along the transmission line, and perform power allocation on the input RF analog signal, which is divided into two equal amplitudes and has a phase of 90°. Poor RF analog signals for RF analog signal transmission. The power distribution process may also be referred to as power split processing, that is, the bridge network 130 may implement power allocation of the radio frequency analog signal. Conversely, the bridge network 130 may also implement power aggregation of the radio frequency analog signal.

It can be understood that the same frequency combiner changes the power value of the RF analog signal by changing the amplitude value of the RF analog signal. Bridge network 130 may also be comprised of other bridge devices that are capable of performing the functions described above. At the same time, the above-mentioned composition form of the bridge network device does not constitute a limitation on the structure of the bridge network, and may also be constituted by other bridge devices.

The RRU 120 receives the radio frequency analog signal processed by the bridge network 130, and performs the process of down-converting, amplifying, analog-to-digital conversion, digital signal down-conversion, matching filtering, etc. on the received radio frequency analog signal, and then transmitting the same to the BBU 110. Correspondingly, the downlink baseband digital signal is subjected to spectrum processing such as spreading, filtering, digital-to-analog conversion, and RF analog signal up-conversion by receiving the downlink baseband digital signal sent by the BBU 110, and then transmitting the signal to the antenna. The number of BBUs 110 and RRUs 120 described above may be determined by actual conditions.

It should be noted that one BBU 110 can support multiple RRUs 120, and the coverage of the antenna can be well adjusted through the multi-feed channel scheme in which the BBU 110 and the RRU 120 are combined.

Before the base station receives or transmits the radio frequency analog signal, the base station may group the antennas, adjust the downtilt angle of each group of sub-antennas, and obtain N sets of sub-antennas, where N is a positive integer multiple of 4.

The base station may group the antennas of the base station according to different application scenarios, the spacing between the antennas, and the coverage of the antenna, and each group of sub-antennas may include at least one antenna element. By adjusting the downtilt angle of each group of sub-antennas, the coverage and direction of the antenna are changed, so that the antenna of the base station can adapt to various application scenarios. In FIG. 3, the antenna includes 8 sets of polarization arrays, and a total of 16 corresponding feed channels, that is, 16 antenna elements. The base station divides the antenna into four groups to form four sets of sub-antennas. Each set of sub-antennas may include four vibrators, and each vibrator corresponds to one transmission channel, that is, each group of antennas may include four transmission channels, such as transmission of the first group of antennas. Channels can include channel 1, channel 2, channel 3, channel 4.

Further, the base station receives different control signals through the stepping motor, and drives the stepping motor to generate different rotation angles, thereby generating microstrip lines of different lengths on the transmission, thereby obtaining different carrier air interface phases of each group of sub-antennas. Coherent processing is performed on different carrier air port phases, so that each group of sub-antennas obtains a new downtilt angle, thereby achieving the purpose of flexibly adjusting the antenna downtilt angle.

The method of adjusting the power of the antenna to receive and transmit the RF analog signal will be described in detail below.

FIG. 4 is a schematic diagram of a method for adjusting antenna signal power according to an embodiment of the present invention. The executor of the method may be a base station. As shown in FIG. 3, the method may include:

Step 410: The base station determines N first digital signals according to the obtained N baseband digital signals, where the power of the first digital signal is a sum of partial powers of each of the baseband digital signals of the four baseband digital signals, and four baseband digital signals. Included in the N baseband digital signals, N is a positive integer multiple of 4.

Optionally, before the base station determines the N first digital signals, the base station determines, according to the obtained N baseband digital signals, an M-dimensional unitary matrix, where M is a positive integer multiple of 4.

In the digital domain, the base station determines the dimension and number of the unitary matrix based on the number of baseband digital signals. If the base station acquires four baseband digital signals, the base station can group the four baseband digital signals into one group to determine a 4×4 unitary matrix. Or, the base station acquires 8 baseband digital signals, and the base station can divide the 8 baseband digital signals into a group to determine an 8×8 unitary matrix.

It can be understood that when the base station acquires 8 baseband digital signals, the base station can also divide the 8 baseband digital signals into two groups of 4 baseband digital signals. At this time, the base station can determine two 4×4 unitary matrices, each of which can determine two 4×4 tantalum matrices. The 4X4's unitary matrix corresponds to a set of baseband digital signals.

Thereafter, the base station determines N first digital signals based on the M-dimensional matrix and the N baseband digital signals.

The base station multiplies the row matrix formed by the N baseband digital signals by the transposition of the M-dimensional unitary matrix to determine the first matrix; then, the base station extracts N first digital signals from the first matrix, and the base station sets N baseband numbers After the signal is weighted by the unitary matrix, the obtained N first digital signals are allocated to the plurality of feed channels, so that the power of the first digital signal received by the feed channel of each RRU is lower than the rated power of the feed channel. That is, the flexible power distribution between multiple antennas and the transmission of signals are realized, and the problem of limited power rating of the single feed channel is solved.

The four baseband digital signals of the N baseband digital signals are a group, and the amplitudes of the N first digital signals extracted by the matrix multiplication are the partial amplitudes of each of the four baseband digital signals. That is, the power of each of the first digital signals is the sum of the partial powers of each of the four baseband digital signals.

In one example, the form in which the row matrix of the four baseband digital signals is multiplied by the transpose of the 4×4 dimensional unitary matrix can be expressed as:

among them,

Representing the amplitude of the first digital signal, a, b, c, and d represent 4 different baseband digital signals, the imaginary part of -j is a negative integer 1, and T represents the transpose of the matrix.

After multiplying, the first matrix is obtained as follows:

The base station extracts four first digital signals from the first matrix

with

or

The power is the sum of the partial powers of each of the four baseband digital signals.

It can be seen that the base station obtains N first digital signals by weighting the N baseband digital signals through the unitary matrix, and allocates the obtained N first digital signals to multiple feed channels, thereby making each RRU The power of the first digital signal received by the feed channel is lower than the rated power of the feed channel, that is, the flexible power distribution between multiple antennas and the signal transmission are solved, and the problem of limiting the power rating of the single feed channel is solved, and the problem is greatly improved. The coverage area of the antenna and the transmitted signal strength.

Step 420: The base station obtains N first radio frequency analog signals according to the N first digital signals, where the power of the first radio frequency analog signal is the same as the power of the first digital signal.

The base station performs analog-to-digital conversion, matrix processing, digital signal frequency conversion, matched filtering, and the like on the first digital signal to obtain a corresponding first radio frequency analog signal. The power of the first radio frequency analog signal is the same as the power of the first digital signal, that is, the sum of the power of the first radio frequency analog signal and the partial power of each of the four baseband digital signals is the same, and the first radio frequency simulation The signal corresponds to the first digital signal one-to-one.

In one example, four first digital signals

with

After performing analog-to-digital conversion, matrix processing, digital signal conversion, matched filtering, etc., the corresponding four first RF analog signals are obtained.

with

Step 430: The base station acquires N second radio frequency analog signals according to the N first radio frequency analog signals, where the power of the N second radio frequency analog signals is included in the N first radio frequency analog signals and the N first digital signals. The sum of the powers corresponding to the same baseband data signal;

The base station can obtain N second radio frequency analog signals according to the N first radio frequency analog signals through the bridge network, and the N second radio frequency analog signals correspond to N baseband digital signals, and any of the N second radio frequency analog signals The power of a second RF analog signal is the same as the power of its corresponding baseband digital signal. The power corresponding to the same baseband data signal in the N first digital signals is superimposed on the first radio frequency analog signal distributed on the plurality of feed channels by the bridge network, and is aggregated to the corresponding antenna.

The bridge network may include a first bridge subnetwork and a second bridge subnetwork, and the first bridge subnetwork and the second bridge subnetwork may respectively include two co-frequency combiners (also called 90° bridges) , the matrix form of the same frequency combiner can be expressed as Wherein, the parameter j represents an imaginary unit, and the imaginary part of j is a positive integer 1, and correspondingly, the imaginary part of -j is a negative integer 1.

The base station passes the N first radio frequency analog signals through the two co-frequency combiners in the first bridge sub-network to obtain N third radio frequency analog signals, wherein any one of the N third radio frequency analog signals is the third radio frequency The power of the analog signal is the sum of the powers of the two first RF analog signals corresponding to the same baseband data signals of the two first digital signals.

The base station obtains N second radio frequency analog signals by using the N third radio frequency analog signals through two co-frequency combiners in the second bridge sub-network, wherein the N second radio frequency analog signals correspond to the N baseband numbers Signal (such as baseband digital signal is a, b, c, corresponding second RF analog signal is A, B, C), The power of any one of the N second RF analog signals is the same as the power of the corresponding baseband digital signal.

It can be seen that the base station performs power superposition on the N first radio frequency analog signals through the bridge network, and the obtained N second radio frequency analog signals can be the same as the power of the corresponding baseband digital signals.

It can be understood that the bridge network sends N second radio frequency analog signals to the antenna vibrator through the feed channel, because one bridge network can only send 4 second radio frequencies to 4 antenna vibrators (one vibrator per antenna) Analog signals, therefore, the number of vibrators per antenna is the same as the number of bridge networks.

FIG. 5 is a schematic structural diagram of a bridge network provided by the implementation of the present invention. In Figure 5, the bridge network can include a first bridge subnetwork and a second bridge subnetwork. The first bridge subnetwork and the second bridge subnetwork respectively comprise two co-frequency combiners.

The baseband digital signals acquired by the base station are a signal, b signal, c signal and d signal, respectively. The four first digital signals obtained with the baseband digital signal are

with

The corresponding four first RF analog signals are

with

The base station performs inverse processing of power allocation of the four first radio frequency analog signals by using two co-frequency combiners in the first bridge sub-network, that is, power superposition.

Since the same frequency combiner is a 2-input and 2-output, the same same-frequency combiner can superimpose power on any two of the first four RF analog signals received, such as

versus

with

versus

According to the matrix of the same frequency combiner, four third analog signals are obtained.

versus

with

versus

Since the amplitude of the third RF analog signal is relative to the first RF analog signal

versus

Amplitude becomes

Change

Times, power by

Change

Times, such as the amplitude of the first RF analog signal

Power is

After processing by the same frequency combiner, the amplitude of the third RF analog signal is

Power is

It can be understood that the power of each of the four third RF analog signals is the sum of the powers of the four first RF analog signals corresponding to the same baseband data signals of the two first digital signals. , such as the sum of the powers of the same a signal in the two first digital signals;

The base station uses the two co-frequency combiners in the second bridge sub-network to perform power superposition on the four third radio frequency analog signals again, and each co-frequency combiner in the second bridge sub-network receives the first from the first Two third analog signals generated by different co-frequency combiners in the bridge subnetwork

with

Each of the same-frequency combiners in the second bridge sub-network respectively performs power superposition processing on the received two third analog signals, and obtains four second analog signals, namely, A signal, B signal, C signal, and D. signal. The four second radio frequency analog signals correspond to four baseband digital signals, that is, the A signal, the B signal, the C signal, and the D signal respectively correspond to the a signal, the b signal, the c signal, and the d signal, and each second The power of the RF analog signal is the same as the power of its corresponding baseband digital signal.

It can be seen that the first radio frequency analog signal allocated to the plurality of feed channels is superimposed by the bridge network to obtain the second radio frequency analog signal with the same power as the baseband digital signal, thereby realizing the inter-RRU feed channel. The powers are superimposed on each other and sent to the corresponding group antenna.

Step 440: The base station sends N second radio frequency analog signals through the antenna.

In the above method provided by the embodiment of the present invention, the base station determines N first digital signals according to the obtained N baseband digital signals, where the power of the first digital signal is part of the power of each of the four baseband digital signals. And N is a positive integer multiple of 4; then, according to the N first digital signals, N first radio frequency analog signals having the same power as the first digital signal are obtained, and N second radio frequency analog signals are obtained through the bridge network. , the power of the N second RF analog signals is N first RF The analog signal includes a sum of powers corresponding to the same baseband data signals of the N first digital signals, wherein the N second RF analog signals correspond to N baseband digital signals, and any one of the N second RF analog signals is second. The power of the RF analog signal is the same as the power of its corresponding baseband digital signal. Finally, the base station transmits N second radio frequency analog signals through the antenna.

That is to say, the N baseband digital signals sent by the base station are weighted by the unitary matrix of the digital domain to obtain N first digital signals, and after the first digital signal is modulated, mixed, divided, power amplified, etc., The first RF analog signal is transmitted on the feed channel, and the N power split analog signals pass the N first digital analog signals and the N first through a bridge network having an inverse relationship with the inverse matrix The power corresponding to the same baseband data signal in the digital signal is superimposed and then concentrated on the corresponding antenna of the N group.

Further, in the digital domain, before the N baseband digital signals are weighted by the unitary matrix, the coefficients of the baseband digital signal are expanded, and if the coefficient of the a signal is doubled to 2a, the power of the baseband digital signal can be increased. Since each set of antennas corresponds to multiple feed channels, the power of the second RF analog signal of the antenna is improved, that is, the coverage area of the antenna and the transmitted signal strength are improved.

It can be seen that the above method can more flexibly adjust the power of the antenna signal, and through the baseband digital domain 酉 matrix weighting process, the 酉 matrix inverse processing of the RF analog domain bridge network, realizes the mutual power between the multiple feed channels. Convergence is sent to the same antenna, which overcomes the problem of limited power rating of the single feed channel, which greatly improves the power of the antenna to receive and transmit signals.

Corresponding to the method of adjusting the antenna transmission signal power shown in FIG. 3, the present invention also provides another method of adjusting the power of the antenna received signal.

FIG. 6 is another method for adjusting antenna signal power according to an embodiment of the present invention. The executor of the method may be a base station. As shown in FIG. 6, the method may include:

Step 610: The base station receives N radio frequency analog signals, where N is a positive integer multiple of 4.

The base station can receive N radio frequency analog signals through N sets of sub-antennas having different/same downtilt angles.

Step 620: The base station acquires N first radio frequency analog signals according to the N radio frequency analog signals, where the power of the first radio frequency analog signal is a sum of partial powers of each of the four radio frequency analog signals, and four radio frequency analog signals. It is included in N RF analog signals.

The base station passes N radio frequency analog signals through the bridge network to obtain N first radio frequency analog signals. The power of the first radio frequency analog signal is the sum of the partial powers of each of the four radio frequency analog signals, and the bridge network can The first bridge subnetwork and the second bridge subnetwork are included, and the first bridge subnetwork and the second bridge subnetwork respectively comprise two co-frequency combiners (also called 90° bridges), and the same frequency combination The matrix form of the router can be expressed as

Wherein, the parameter j represents an imaginary unit, and the imaginary part of j is a positive integer 1, and correspondingly, the imaginary part of -j is a negative integer 1.

The base station passes the N radio frequency analog signals through the first bridge subnetwork to obtain N second frequency analog signals, wherein the power of any one of the N second radio frequency analog signals is 2 radio frequency analog signals The sum of the powers of one-half of each RF analog signal.

The base station obtains N first radio frequency analog signals by using the N second radio frequency analog signals, where the power of any one of the N first radio frequency analog signals is 4 The sum of the partial powers of each RF analog signal in the RF analog signal.

It can be seen that the base station distributes the power of the received radio frequency analog signal evenly through the bridge network, and the allocated first radio frequency analog signal will enter the RRU through the feed channel. It can be seen that when the power of the RF analog signal received by the base station antenna is high, and the rated power of the single feed channel of the RRU is limited, the bridge network allocates the power of the RF analog signal, and the first RF simulation after the distribution. The power of the signal is lower than the rated power of the single feed channel, that is, the first RF analog signal after the distribution can be transmitted through the feed channel.

It should be noted that the process of the N radio frequency analog signals passing through the bridge network to obtain the N first radio frequency analog signals is inverse to the process shown in FIG. 5 , and details are not described herein again.

Step 630: The base station acquires N first digital signals according to the N first radio frequency analog signals, where the power of the first digital signal is the same as the power of the first radio frequency analog signal.

The base station performs analog-to-digital conversion, matrix processing, digital signal conversion, matched filtering, and the like on the first radio frequency analog signal to obtain a corresponding first digital signal. The power of the first digital signal is the same as the power of the first radio frequency analog signal, that is, the sum of the power of the first digital signal and the partial power of each of the four radio frequency analog signals, and the first radio frequency analog signal One-to-one correspondence with the first digital signal.

In an example, combined with the content shown in Figure 5, if the first analog signal is

with

After analog-to-digital conversion, digital signal down-conversion, matched filtering, etc., the corresponding first digital signals are respectively obtained.

with

Step 640: The base station acquires N baseband digital signals from the N first digital signals, where the N baseband digital signals correspond to the N radio frequency analog signals, and any one of the N baseband digital signals The power of the digital signal is the same as the power of its corresponding RF analog signal.

The base station performs matrix processing on the first digital signal to obtain the first matrix, and then decomposes the first matrix into a matrix matrix composed of the second digital signal and multiplies the M-dimensional matrix transposition to extract the second digital signal, and the second digital The signal is a baseband digital signal, and M is a positive integer multiple of 4, thereby superimposing powers corresponding to the same radio frequency analog signals in the N radio frequency analog signals included in the N first digital signals on the N feed channels. Therefore, the problem that the rated power of the single feed channel is limited is solved.

In one example, the four first digital signals that the base station will acquire

with

After matrixing, the first matrix is obtained as follows:

The base station decomposes the first matrix in the digital domain and decomposes it into a form in which the row matrix composed of the second digital signal is multiplied by the 4×4酉 matrix transpose:

The base station extracts a second digital signal from the row matrix formed by the second digital signal, and the second digital signal is a baseband digital signal.

In the foregoing method provided by the embodiment of the present invention, the base station receives N radio frequency analog signals, where N is a positive integer multiple of 4, and then obtains N first radio frequency analog signals and power of the first radio frequency analog signal according to the N radio frequency analog signals. The sum of the partial powers of each of the four radio frequency analog signals, thereby acquiring N first digital signals, the power of the first digital signal being the same as the power of the first radio frequency analog signal. Finally, the base station obtains N baseband digital signals from the N first digital signals, and the N baseband digital signals correspond to N radio frequency analog signals, and the power of any one of the N baseband digital signals and the corresponding radio frequency analog signal The power is the same.

That is to say, the base station compares the N radio frequency analog signals received by the N groups of antennas into the analog domain, and performs different mappings on the N radio frequency analog signals through the bridge network including the 酉 matrix transformation relationship to obtain the first radio frequency analog signal. And being distributed on the plurality of feed channels, so that the plurality of feed channels jointly acquire the power of the N first RF analog signals, and then the first RF analog signals in the feed channel are modulated, mixed, matrixed, etc. Finally, the corresponding baseband digital signal is obtained in the digital domain.

Corresponding to the method for adjusting antenna signal power of FIG. 4, the embodiment of the present invention provides a base station.

FIG. 7 shows a possible structural diagram of a base station involved in the above embodiment. As shown in FIG. 7, the base station may include: a receiving unit 700, a processing unit 710, and a transmitting unit 720.

The receiving unit 700 is configured to acquire N baseband digital signals.

The processing unit 710 is further configured to determine N first digital signals according to the obtained N baseband digital signals, where the power of the first digital signal is a sum of partial powers of each of the baseband digital signals of the four baseband digital signals, and four The baseband digital signal is included in the N baseband digital signals, and N is a positive integer multiple of four.

The processing unit 710 is further configured to acquire N first radio frequency analog signals according to the N first digital signals, where the power of the first radio frequency analog signal is the same as the power of the first digital signal.

Acquiring N second radio frequency analog signals according to the N first radio frequency analog signals, wherein the power of the N second radio frequency analog signals is the same baseband data signal as the N first radio frequency analog signals and the N first digital signals The sum of the corresponding powers; the N second radio frequency analog signals correspond to the N baseband digital signals, and the power of any one of the N second radio frequency analog signals is the same as the power of the corresponding baseband digital signal.

The sending unit 720 is configured to send N second radio frequency analog signals by using an antenna.

The functions of the functional modules of the base station in the embodiment of the present invention can be implemented by the method steps provided in FIG. 4. Therefore, the specific working process of the base station provided by the present invention is not described herein.

Corresponding to the method for adjusting the antenna signal power of FIG. 6 , the embodiment of the present invention further provides a base station.

FIG. 8 is a schematic diagram showing another possible structure of a base station involved in the above embodiment. As shown in FIG. 8, the base station may include: a receiving unit 800, and a processing unit 810.

The receiving unit 800 is configured to receive, by the base station, N radio frequency analog signals, where N is a positive integer multiple of 4;

The processing unit 810 is configured to obtain N first radio frequency analog signals according to the N radio frequency analog signals received by the receiving unit 800, where the power of the first radio frequency analog signal is part of the power of each of the four radio frequency analog signals. And, the four RF analog signals are included in the N RF analog signals, and the N first digital signals are obtained according to the N first RF analog signals, and the power of the first digital signal is the same as the power of the first RF analog signal. .

The processing unit 810 is further configured to acquire N baseband digital signals from the N first digital signals, where the N baseband digital signals correspond to N radio frequency analog signals, and the power of any one of the N baseband digital signals is The power of the corresponding RF analog signal is the same.

The functions of the functional modules of the base station in the embodiment of the present invention can be implemented by the method steps provided in FIG. 6. Therefore, the specific working process of the base station provided by the present invention is not described herein.

Corresponding to FIG. 7, the embodiment of the present application further provides a base station.

FIG. 9 is a schematic diagram of a base station according to an embodiment of the present invention. As shown in FIG. 9, the base station includes an antenna 910 and a processing circuit 920.

The antenna 910 is configured to support transmission and reception of information between the base station and the terminal, and to support radio communication between the terminal and other terminals. The processing circuit 920 is configured to perform corresponding processing on the signals transmitted and received by the antenna 910. The processing circuit 920 can include a bridge network 921, a radio remote unit RRU 922, and a baseband processing unit BBU 923.

The base station may also include a memory 930 and a communication unit 940.

The memory 930 is used to store program codes and data of the base station, and the storage 930 may be a non-volatile memory such as a hard disk drive and a flash memory having a software module and a device driver. The software module is capable of performing the above method of the present invention; the device driver can be a network and interface driver. The communication unit 940 is configured to support the base station to communicate with other network entities. For example, it is used to support communication between a base station and other communication network entities, such as a mobility management entity (MME) located in an Evolved Packet (Core, EPC), and a signaling gateway ( English: Signaling GateWay, SGW) And or packet data network gateway (English: packet data network gateway, PDN GW or PGW).

Optionally, the processing circuit 920 may further include: an electric phase modulation unit 924. The electric phase modulating unit 924 is configured to group the antennas and acquire independent N groups of antennas to form a multi-antenna system, so as to flexibly adjust the downtilt angle of each group of antennas.

Before the antenna 910 receives the N radio frequency analog signals, the electric phase modulating unit 924 can adjust the downtilt angle of each group of antennas according to factors such as different antenna application scenarios, antenna coverage, and the like. By adjusting the downtilt angle, the coverage and direction of the antenna are changed to adapt the multi-antenna system to various application scenarios.

The processing circuit 920 is configured to determine N first digital signals according to the obtained N baseband digital signals, where the power of the first digital signal is a sum of partial powers of each of the baseband digital signals of the four baseband digital signals, and four basebands The digital signal is included in the N baseband digital signals, and N is a positive integer multiple of 4;

The processing circuit 920 is further configured to acquire N first radio frequency analog signals according to the N first digital signals, where the power of the first radio frequency analog signal is the same as the power of the first digital signal.

The processing circuit 920 is further configured to acquire N second radio frequency analog signals according to the N first radio frequency analog signals, where the power of the N second radio frequency analog signals is, and the N first radio frequency analog signals include the N first The sum of the powers of the same baseband data signal in the digital signal. The N second radio frequency analog signals correspond to the N baseband digital signals, and the power of any one of the N second radio frequency analog signals is the same as the power of the corresponding baseband digital signal.

The antenna 910 is configured to send the N second radio frequency analog signals.

Optionally, the processing circuit 920 determines the N first digital signals according to the acquired N baseband digital signals.

The processing circuit 920 is further configured to determine an M-dimensional unitary matrix according to the obtained N baseband digital signals, where M is a positive integer multiple of 4, and determine N first digital signals according to the M-dimensional unitary matrix and the N baseband digital signals. .

Optionally, the processing circuit 920 is specifically configured to multiply a row matrix formed by the N baseband digital signals and a transpose of the N-dimensional unitary matrix to determine the first matrix, and extract N first digits according to the first matrix. signal.

Optionally, the processing circuit 920 is further configured to: obtain the N second radio frequency analog signals by using the N first radio frequency analog signals through the bridge network.

Optionally, the bridge network comprises a first bridge subnetwork and a second bridge subnetwork.

The processing circuit 920 obtains N third radio frequency analog signals by using the first first radio frequency analog signals through the first bridge sub-network, wherein the power of each of the N third radio frequency analog signals is 2 The first radio frequency analog signal includes a sum of powers corresponding to the same baseband data signals of the two first digital signals; and, by the N third radio frequency analog signals, the N second radio frequency analog signals are obtained through the second bridge The sub-network, wherein the N second radio frequency analog signals correspond to the N baseband digital signals, and the power of any one of the N second radio frequency analog signals is the same as the power of the corresponding baseband digital signal.

Optionally, the first bridge subnetwork and the second bridge subnetwork respectively comprise two co-frequency combiners.

Corresponding to FIG. 8 , an embodiment of the present application further provides a base station.

FIG. 10 is a schematic diagram of a base station according to an embodiment of the present invention. As shown in FIG. 10, the base station includes an antenna 1010 and a processing circuit 1020.

The antenna 1010 is configured to support transmission and reception of information between the base station and the terminal, and to support radio communication between the terminal and other terminals. The processing circuit 1020 is configured to perform corresponding processing on the signals transmitted and received by the antenna 1010. The processing circuit 920 can include a bridge network 1021, a radio remote unit RRU 1022, and a baseband processing unit BBU 1023.

The base station may also include a memory 1030 and a communication unit 1040.

The memory 1030 is used to store program codes and data of the base station, and the storage 1030 may be a non-volatile memory such as a hard disk drive and a flash memory, and the memory 1030 has a software module and a device driver. Program. The software module is capable of performing the above method of the present invention; the device driver can be a network and interface driver. The communication unit 1040 is configured to support the base station to communicate with other network entities. For example, it is used to support communication between a base station and other communication network entities, such as an MME, an SGW, a PDN GW, or a PGW in the EPC.

Optionally, the processing circuit 1020 may further include: an electric phase modulation unit 1024. The electric phase modulating unit 1024 is configured to group the antennas and acquire independent N groups of antennas to form a multi-antenna system, so as to flexibly adjust the downtilt angle of each group of antennas.

Before the antenna 1010 receives the N radio frequency analog signals, the electric phase modulating unit 1024 can adjust the downtilt angle of each group of antennas according to factors such as different antenna application scenarios, antenna coverage, and the like. By adjusting the downtilt angle, the coverage and direction of the antenna are changed to adapt the multi-antenna system to various application scenarios.

The antenna 1010 is configured to receive, by the base station, N radio frequency analog signals, where N is a positive integer multiple of 4.

The processing circuit 1020 is configured to obtain N first radio frequency analog signals according to the N radio frequency analog signals received by the receiver, where the power of the first radio frequency analog signal is a sum of partial powers of each of the four radio frequency analog signals. The four radio frequency analog signals are included in the N radio frequency analog signals, and the N first digital signals are obtained according to the N first radio frequency analog signals, and the power of the first digital signal is the same as the power of the first radio frequency analog signal.

The processing circuit 1020 is further configured to acquire N baseband digital signals from the N first digital signals, where the N baseband digital signals correspond to N radio frequency analog signals, and the power of any one of the N baseband digital signals is The power of the corresponding RF analog signal is the same.

Optionally, the bridge network comprises a first bridge subnetwork and a second bridge subnetwork. The processing circuit 1020 is configured to: pass the N radio frequency analog signals to the first bridge sub-network to obtain N second radio frequency analog signals, where the power of any one of the N second radio frequency analog signals is And summing the two powers of each of the two radio frequency analog signals, and passing the N second radio frequency analog signals through the second bridge subnetwork to obtain N first radio frequency analog signals, The power of the first radio frequency analog signal of any one of the N first radio frequency analog signals is the sum of the partial powers of each of the four radio frequency analog signals.

Optionally, the processing circuit 1020 is further configured to perform matrix processing on the first digital signal, obtain the first matrix, and decompose the first matrix into a row matrix composed of the second digital signal and the M-dimensional matrix transposed phase. Multiply, extract the second digital signal, the second digital signal is a baseband digital signal, and M is a positive integer multiple of 4.

The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. The software instructions may be composed of corresponding software modules, which may be stored in random access memory, flash memory, read only memory, erasable programmable read-only memory (EPROM) memory, and electrically erasable. An electrically erasable programmable read-only memory (EEPROM), a hard disk, a compact disc read-only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in the user equipment. Of course, the processor and the storage medium may also reside as discrete components in the user equipment.

Those skilled in the art will appreciate that in one or more examples described above, the functions described herein can be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.

The specific embodiments described above further explain the objects, technical solutions and beneficial effects of the present invention, and it should be understood that the above description is only specific embodiments of the present invention. The present invention is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc., which are included in the scope of the present invention are included in the scope of the present invention.

Claims

A method for adjusting antenna signal power, characterized in that the method comprises:

The base station determines N first digital signals according to the obtained N baseband digital signals, where the power of the first digital signal is a sum of partial powers of each of the baseband digital signals of the four baseband digital signals, the four The baseband digital signal is included in the N baseband digital signals, and N is a positive integer multiple of 4;

The base station acquires N first radio frequency analog signals according to the N first digital signals, where the power of the first radio frequency analog signal is the same as the power of the first digital signal;

The base station acquires N second radio frequency analog signals according to the N first radio frequency analog signals, where the power of the N second radio frequency analog signals is, and the N first radio frequency analog signals include a sum of powers corresponding to the same baseband data signals of the N first digital signals; the N second radio frequency analog signals corresponding to the N baseband digital signals, any one of the N second radio frequency analog signals The power of the RF analog signal is the same as the power of its corresponding baseband digital signal;

The base station transmits the N second radio frequency analog signals through an antenna.
The method according to claim 1, wherein the method further comprises: before the determining, by the base station, the N first digital signals according to the obtained N baseband digital signals, the method further comprising:

Determining, by the base station, the M-dimensional unitary matrix according to the obtained N baseband digital signals, where M is a positive integer multiple of 4;

The base station determines N first digital signals according to the M-dimensional unitary matrix and the N baseband digital signals.
The method according to claim 2, wherein the base station determines the N first digital signals according to the N baseband digital signals, and specifically includes:

The base station multiplies a row matrix formed by the N baseband digital signals and a transpose of the N-dimensional unitary matrix to determine a first matrix;

The base station extracts N first digital signals according to the first matrix.
The method according to claim 1, wherein the base station acquires the N second radio frequency analog signals according to the N first radio frequency analog signals, and specifically includes:

The base station obtains the N second radio frequency analog signals by using the N first radio frequency analog signals through the bridge network.
The method of claim 4, wherein the bridge network comprises a first bridge subnetwork and a second bridge subnetwork;

The base station passes the N first radio frequency analog signals through the bridge network to obtain N second radio frequency analog signals, where the power of the N second radio frequency analog signals is, the N first radio frequency analog signals include The sum of the powers corresponding to the same baseband data signals in the N first digital signals, specifically including:

The base station obtains N third radio frequency analog signals by using the N first radio frequency analog signals through the first bridge subnetwork, where each of the N third radio frequency analog signals is simulated by a third radio frequency The power of the signal is the sum of the powers of the two first radio frequency analog signals corresponding to the same baseband data signals of the two first digital signals;

The base station obtains N second radio frequency analog signals, and obtains N second radio frequency analog signals, by using the second bridge subnetwork, where the N second radio frequency analog signals correspond to the N basebands The digital signal, the power of any one of the N second RF analog signals is the same as the power of the corresponding baseband digital signal.
The method of claim 5 wherein said first bridge subnetwork and said second bridge subnetwork comprise two co-frequency combiners, respectively.
A method for adjusting antenna signal power, characterized in that the method comprises:

The base station receives N radio frequency analog signals, where N is a positive integer multiple of 4;

The base station acquires N first radio frequency analog signals according to the N radio frequency analog signals, where the power of the first radio frequency analog signal is part of power of each of the four radio frequency analog signals And four of the radio frequency analog signals are included in the N radio frequency analog signals;

The base station acquires N first digital signals according to the N first radio frequency analog signals, where the power of the first digital signal is the same as the power of the first radio frequency analog signal;

The base station acquires N baseband digital signals from the N first digital signals, where the N baseband digital signals correspond to the N radio frequency analog signals, and any one of the N baseband digital signals The power of the signal is the same as the power of its corresponding RF analog signal.
The method according to claim 7, wherein the base station acquires the N first radio frequency analog signals according to the N radio frequency analog signals, and specifically includes:

The base station obtains N first radio frequency analog signals by using the N radio frequency analog signals through a bridge network, where the bridge network includes a first bridge subnetwork and a second bridge subnetwork;

The base station obtains N second radio frequency analog signals by using the N radio frequency analog signals through the first bridge subnetwork, where any one of the N second radio frequency analog signals is a second radio frequency analog signal The power is the sum of one-half of the power of each of the two radio frequency analog signals;

The base station obtains N first radio frequency analog signals by using the N second radio frequency analog signals by using the second bridge sub-network, where any one of the N first radio frequency analog signals is the first radio frequency The power of the analog signal is the sum of the partial powers of each of the four radio frequency analog signals.
The method of claim 8 wherein said first bridge subnetwork and said second bridge subnetwork comprise two co-frequency combiners, respectively.
The method according to claim 7, wherein the base station obtains a baseband digital signal from the first digital signal, and specifically includes:

The base station performs matrix processing on the first digital signal to obtain a first matrix;

The base station multiplies the row matrix formed by decomposing the first matrix into a second digital signal and multiplying the M-dimensional matrix transposition to extract the second digital signal, where the second digital signal is a baseband digital signal, where M is A positive integer multiple of 4.
A base station, the base station includes:

a processing unit, configured to determine N first digital signals according to the obtained N baseband digital signals, where the power of the first digital signal is a sum of partial powers of each of the baseband digital signals of the four baseband digital signals, The four baseband digital signals are included in the N baseband digital signals, and N is a positive integer multiple of four;

The processing unit is further configured to acquire N first radio frequency analog signals according to the N first digital signals, where a power of the first radio frequency analog signal is the same as a power of the first digital signal;

The processing unit is further configured to acquire N second radio frequency analog signals according to the N first radio frequency analog signals, where the power of the N second radio frequency analog signals is, the N first radio frequency analog signals And a sum of powers corresponding to the same baseband data signals of the N first digital signals; the N second radio frequency analog signals corresponding to the N baseband digital signals, the N second radio frequency analog signals The power of any one of the second radio frequency analog signals is the same as the power of the corresponding baseband digital signal;

And a sending unit, configured to send the N second radio frequency analog signals by using an antenna.
The base station according to claim 11, wherein the processing unit determines the N first digital signals according to the acquired N baseband digital signals.

The processing unit is further configured to determine, according to the obtained N baseband digital signals, an M-dimensional unitary matrix, where M is a positive integer multiple of 4;

Determining N first digital signals based on the M-dimensional unitary matrix and the N baseband digital signals.
The base station according to claim 11, wherein the processing unit is configured to multiply a row matrix of the N baseband digital signals and a transpose of the N-dimensional unitary matrix to determine a first matrix;

Extracting N first digital signals according to the first matrix.
The base station according to claim 11, wherein the processing unit is configured to obtain the N second radio frequency analog signals by using the N first radio frequency analog signals through a bridge network.
The base station according to claim 14, wherein the bridge network comprises a first bridge subnetwork and a second bridge subnetwork;

The processing unit is further configured to: obtain the N third radio frequency analog signals by using the N first radio frequency analog signals by using the first bridge sub-network, where the N third radio frequency analog signals are The power of each of the third radio frequency analog signals is a sum of powers corresponding to the same baseband data signals of the two first digital signals included in the two first radio frequency analog signals;

Passing the N third RF analog signals to obtain N second RF analog signals through the second bridge subnetwork, wherein the N second RF analog signals correspond to the N baseband digital signals, The power of any one of the N second radio frequency analog signals is the same as the power of the corresponding baseband digital signal.
The base station according to claim 15, wherein said first bridge subnetwork and said second bridge subnetwork comprise two co-frequency combiners, respectively.
A base station, the base station includes:

a receiving unit, configured to receive, by the base station, N radio frequency analog signals, where N is a positive integer multiple of 4;

a processing unit, configured to acquire, according to the N radio frequency analog signals received by the receiving unit, N first radio frequency analog signals, where the power of the first radio frequency analog signal is 4 each of the radio frequency analog signals Calculating a sum of partial powers of the radio frequency analog signals, wherein the four radio frequency analog signals are included in the N radio frequency analog signals;

Obtaining N first digital signals according to the N first radio frequency analog signals, where the power of the first digital signal is the same as the power of the first radio frequency analog signal;

The processing unit is further configured to acquire N baseband digital signals from the N first digital signals, where the N baseband digital signals correspond to the N radio frequency analog signals, and the N baseband digital signals The power of any of the baseband digital signals is the same as the power of its corresponding RF analog signal.
The base station according to claim 17, wherein the bridge network comprises a first bridge subnetwork and a second bridge subnetwork;

The processing unit specifically includes: passing the N radio frequency analog signals through the first bridge subnetwork to obtain N second radio frequency analog signals, where the N second radio frequency analog signals are The power of any one of the second radio frequency analog signals is the sum of one-half of the power of each of the two radio frequency analog signals;

And acquiring the N first radio frequency analog signals by using the N second radio frequency analog signals, where the first radio frequency analog signals of any one of the N first radio frequency analog signals are obtained. The power is the sum of the partial powers of each of the four RF analog signals.
The base station according to claim 18, wherein said first bridge subnetwork and said second bridge subnetwork comprise two co-frequency combiners, respectively.
The base station according to claim 17, wherein the processing unit is further configured to:

Performing matrix processing on the first digital signal to obtain a first matrix;

The row matrix formed by decomposing the first matrix into a second digital signal is multiplied by an M-dimensional unit matrix transposition, and the second digital signal is extracted, the second digital signal is a baseband digital signal, and M is a positive of 4. Integer multiple.
A base station, the base station includes:

a processing circuit, configured to determine N first digital signals according to the obtained N baseband digital signals, wherein the power of the first digital signal is a sum of partial powers of each of the baseband digital signals of the four baseband digital signals, The four baseband digital signals are included in the N baseband digital signals, and N is a positive integer multiple of four;

The processing circuit is further configured to acquire N first radio frequency analog signals according to the N first digital signals, where a power of the first radio frequency analog signal is the same as a power of the first digital signal;

The processing circuit is further configured to acquire N second radio frequency analog signals according to the N first radio frequency analog signals, where the power of the N second radio frequency analog signals is the N first radio frequency analog signals And a sum of powers corresponding to the same baseband data signals of the N first digital signals; the N second radio frequency analog signals corresponding to the N baseband digital signals, the N second shots The power of any one of the second analog signals of the frequency analog signal is the same as the power of the corresponding baseband digital signal;

And a transmitter, configured to send the N second radio frequency analog signals by using an antenna.
The base station according to claim 21, wherein said processing circuit determines N first digital signals based on said obtained N baseband digital signals,

The processing circuit is further configured to determine an M-dimensional unitary matrix according to the obtained N baseband digital signals, where M is a positive integer multiple of 4;

Determining N first digital signals based on the M-dimensional unitary matrix and the N baseband digital signals.
The base station according to claim 21, wherein the processing circuit is configured to multiply a row matrix of the N baseband digital signals and a transpose of the N-dimensional unitary matrix to determine a first matrix;

Extracting N first digital signals according to the first matrix.
The base station according to claim 21, wherein the processing circuit is configured to obtain the N second radio frequency analog signals by using the N first radio frequency analog signals through a bridge network.
The base station according to claim 24, wherein the bridge network comprises a first bridge subnetwork and a second bridge subnetwork;

The processing circuit is further configured to: obtain the N third radio frequency analog signals by using the N first radio frequency analog signals by using the first bridge sub-network, where the N third radio frequency analog signals are The power of each of the third radio frequency analog signals is a sum of powers corresponding to the same baseband data signals of the two first digital signals included in the two first radio frequency analog signals;

Passing the N third RF analog signals to obtain N second RF analog signals through the second bridge subnetwork, wherein the N second RF analog signals correspond to the N baseband digital signals, The power of any one of the N second radio frequency analog signals is the same as the power of the corresponding baseband digital signal.
The base station according to claim 25, wherein said first bridge subnetwork and said second bridge subnetwork comprise two co-frequency combiners, respectively.
A base station, the base station includes:

a receiver for receiving, by the base station, N radio frequency analog signals, where N is a positive integer multiple of 4;

a processing circuit, configured to acquire N first radio frequency analog signals according to the N radio frequency analog signals received by the receiver, where the power of the first radio frequency analog signal is 4 each of the radio frequency analog signals Calculating a sum of partial powers of the radio frequency analog signals, wherein the four radio frequency analog signals are included in the N radio frequency analog signals;

Obtaining N first digital signals according to the N first radio frequency analog signals, where the power of the first digital signal is the same as the power of the first radio frequency analog signal;

The processing circuit is further configured to acquire N baseband digital signals from the N first digital signals, where the N baseband digital signals correspond to the N radio frequency analog signals, the N baseband digital signals The power of any of the baseband digital signals is the same as the power of its corresponding RF analog signal.
The base station according to claim 27, wherein the bridge network comprises a first bridge subnetwork and a second bridge subnetwork;

The processing circuit is configured to obtain N second radio frequency analog signals by using the N radio frequency analog signals through the first bridge sub-network, where any one of the N second radio frequency analog signals The power of the two radio frequency analog signals is the sum of one-half of the power of each of the two radio frequency analog signals;

And acquiring the N first radio frequency analog signals by using the N second radio frequency analog signals, where the first radio frequency analog signals of any one of the N first radio frequency analog signals are obtained. The power is the sum of the partial powers of each of the four RF analog signals.
The base station according to claim 28, wherein said first bridge subnetwork and said second bridge subnetwork comprise two co-frequency combiners, respectively.
The base station according to claim 27, wherein the processing circuit is further configured to:

Performing matrix processing on the first digital signal to obtain a first matrix;

The row matrix formed by decomposing the first matrix into a second digital signal is multiplied by an M-dimensional unit matrix transposition, and the second digital signal is extracted, the second digital signal is a baseband digital signal, and M is a positive of 4. Integer multiple.