WO2017054201A1

WO2017054201A1 - Beamforming method and equipment

Info

Publication number: WO2017054201A1
Application number: PCT/CN2015/091323
Authority: WO
Inventors: 陈炜; 张劲林; 肖伟宏
Original assignee: 华为技术有限公司
Priority date: 2015-09-30
Filing date: 2015-09-30
Publication date: 2017-04-06
Also published as: CN107078402B; CN107078402A

Abstract

The embodiments of the invention provide a beamforming method and equipment. The beamforming method comprises: performing, by wireless network equipment, first polarization on signals to be transmitted by two rows of first dual-polarized antennas, respectively, and performing, by the wireless network equipment, second polarization on signals to be transmitted by two rows of second dual-polarized antennas, respectively; performing an in-phase procedure on the signals to be correspondingly transmitted by the two rows of the first dual-polarized antennas, performing an out-of-phase procedure on the signals to be correspondingly transmitted by the two rows of the second dual-polarized antennas, and transmitting, by corresponding dual-polarized antennas, the signals to form a beam pattern. The embodiment implements four rows of the dual-polarized antennas to transmit signals of one beamforming output so as to form a beam pattern, and eight rows of the dual-polarized antennas to transmit signals of two beamforming outputs so as to form two beam patterns. The embodiment is not required to increase a beamforming port, and can prevent an increase in network resource expenditure resulting from an increase in beamforming ports. Further, the signals undergone the in-phase procedure and the out-of-phase procedure are orthogonal in polarization directions thereof, therefore, the beam pattern formed is a power combined beam pattern, and not an amplitude combined beam pattern.

Description

Beamforming method and device

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a beamforming method and device.

Background technique

Multi-input and Multi-output (MIMO) technology is the core technology of 4G and future 5G communication. It is a multi-path signal or user distribution in different directions of the wireless channel environment. A user-level beam that does not interfere with each other. The user-level beam can be used to transmit user service data, thereby improving air interface throughput. In addition, the base station needs to transmit broadcast information such as air interface control signaling, common pilot, and synchronization in the cell by using a cell-level beam, and the cell-level beam is called a broadcast beam.

In the prior art, a broadcast signal output by two broadcast beam ports in a base station may be transmitted through a four-column dual-polarized antenna to form two broadcast beams. However, as the number of antennas further expands, how to implement an eight-column dual-polarized antenna to transmit broadcast signals output by two broadcast beam ports in a base station to form two broadcast beams is an urgent problem to be solved.

Summary of the invention

The embodiment of the invention provides a beamforming method and device for saving network resource consumption caused by an increase of a beam port.

In a first aspect, an embodiment of the present invention provides a beamforming method, including:

The wireless network device acquires a signal output by the first beam port in the wireless network device, where the first beam port is any one of N beam ports of the wireless network device; the N is greater than or equal to An integer of 1;

The wireless network device outputs a first dual polarization to each of the two columns of first dual-polarized antennas before outputting the signal to the two columns of first dual-polarized antennas. The signal transmitted by the antenna is subjected to a first polarization process and an in-phase process, wherein the in-phase processing is to perform the same phase processing on the signals respectively outputted to the two columns of the first dual-polarized antennas;

The wireless network device, before outputting the signal to two columns of second dual-polarized antennas, The wireless network device performs a second polarization process and an inversion process on the signal that is subsequently output to the second dual-polarized antenna of each of the two columns of the second dual-polarized antennas, wherein the inverting process is to follow The signals output to the two columns of the second dual-polarized antenna are respectively subjected to phase opposite processing;

Transmitting, by the wireless network device, the in-phase processing and the first polarization-processed signals to the two columns of first dual-polarized antennas respectively, and performing the inverse processing and the second polarization processing Signals are respectively output to the two columns of second dual-polarized antennas;

The first beam port corresponds to four columns of dual-polarized antennas, and the two columns of first dual-polarized antennas are two columns of dual-polarized antennas corresponding to the first beam port; The antenna is the other two columns of dual-polarized antennas corresponding to the first beam port;

The first polarization processing and the second polarization processing are orthogonal polarization processing.

In a first possible implementation manner of the first aspect, the in-phase processing is equal-amplitude in-phase processing or non-equal-amplitude in-phase processing; and the inverting processing is equal-amplitude inversion processing or non-equal-amplitude inversion processing.

In conjunction with the first possible implementation of the first aspect, in a second possible implementation manner of the first aspect, when the in-phase processing is equal-amplitude in-phase processing, the performing in-phase processing includes: the wireless The network device multiplies the signals output to the two columns of the first dual-polarized antennas by the first weight coefficient respectively;

When the inverting process is equal-amplitude inversion processing, the inverting process includes:

The wireless network device multiplies a signal outputted to one of the two columns of the second dual-polarized antennas by the first weight coefficient, which will be subsequently output to the two columns of the second dual-polarized antenna. The signal of the other column is multiplied by the second weight coefficient;

The first weight coefficient and the second weight coefficient are mutually opposite weight coefficients.

In conjunction with the first aspect, or the first possible implementation of the first aspect, or the second possible implementation of the first aspect, in a third possible implementation of the first aspect, the first polarization processing For the left-handed polarization process, the second polarization process is a right-handed polarization process.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, each of the dual-polarized antennas includes an antenna element in a first polarization direction and an antenna in a second polarization direction. Vibrator

The wireless network device performs a first polarization process on the signal that is subsequently transmitted to the first dual-polarized antenna of each of the two columns of the first dual-polarized antennas, including:

The wireless network device will subsequently output to the first polarization direction of each column of the first dual-polarized antenna The signal of the antenna element is multiplied by a third weight coefficient; the wireless network device will subsequently output a signal to the antenna element of the second polarization direction of each column of the first dual-polarized antenna and a fourth weight Multiplying the coefficients;

The wireless network device performs a second polarization process on the signal that is subsequently transmitted to the second dual-polarized antenna of each of the two columns of the second dual-polarized antennas, including:

The wireless network device multiplies the signal of the antenna element that is output to the first polarization direction of each column of the second dual-polarized antenna and the fourth weight coefficient; the wireless network device will follow The signal output to the antenna element of the second polarization direction of the second dual-polarized antenna of each column is multiplied by the third weight coefficient;

The phase of the signal multiplied by the third weight coefficient is different from the phase of the signal multiplied by the fourth weight coefficient by a preset phase.

In conjunction with the first aspect, or the first possible implementation of the first aspect, or the second possible implementation of the first aspect, in a fifth possible implementation of the first aspect, the first polarization processing For the vertical polarization process, the second polarization process is a horizontal polarization process.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, each of the dual-polarized antennas includes an antenna element in a first polarization direction and an antenna in a second polarization direction Vibrator

The wireless network device multiplies the signals of the antenna elements of the first polarization direction and the antenna elements of the second polarization direction outputted to the first polarization antenna of each column by a fifth weight coefficient;

The wireless network device multiplies the signal of the antenna element that is output to the first polarization direction of the second dual-polarized antenna of each column by the fifth weight coefficient; the wireless network device will follow The signal output to the antenna element of the second polarization direction of the second dual-polarized antenna of each column is multiplied by the sixth weight coefficient;

The fifth weight coefficient and the sixth weight coefficient are weight coefficients orthogonal to each other.

In a second aspect, an embodiment of the present invention provides a wireless network device, including: N beam ports, a baseband processing unit and a radio frequency processing unit; the first beam port is any one of N beam ports of the wireless network device; the N is an integer greater than or equal to 1;

The first beam port is configured to output a signal to the baseband processing unit;

The baseband processing unit is configured to acquire a signal output by the first beam port in the wireless network device; before outputting the signal to two columns of first dual-polarized antennas, the wireless network device performs subsequent The signals transmitted to the first dual-polarized antenna of each of the two columns of the first dual-polarized antennas are subjected to a first polarization process and an in-phase process, wherein the in-phase processing is to output the first to the two columns first The signals of the dual-polarized antennas are respectively subjected to the same phase processing; before the signals are output to the two columns of the second dual-polarized antennas, the wireless network device pairs are subsequently output to the two columns of the second dual-polarized antennas The signals transmitted by each of the second dual-polarized antennas in each column are subjected to a second polarization process and an inversion process, wherein the inverting process is to respectively phase-reverse the signals respectively outputted to the two columns of the second dual-polarized antennas. deal with;

The radio frequency processing unit is configured to acquire the in-phase processing and the first polarization-processed signal output by the baseband processing unit, and the reverse-phase processing and the first polarization-processed signal; The signals after the first polarization processing are respectively output to the two columns of first dual-polarized antennas, and the signals after the inverse processing and the second polarization processing are respectively output to the two Column second dual polarized antenna;

In a first possible implementation manner of the second aspect, the in-phase processing is equal-amplitude in-phase processing or non-equal-amplitude in-phase processing; and the inverting processing is equal-amplitude inversion processing or non-equal-amplitude inverting processing.

In conjunction with the first possible implementation of the second aspect, in a second possible implementation of the second aspect, the in-phase processing is equal-amplitude in-phase processing, and the baseband processing unit is configured to perform in-phase processing, including:

And multiplying a signal that is subsequently outputted to the two columns of the first dual-polarized antennas by a first weight coefficient;

The inverting processing is equal-amplitude inversion processing, and when the baseband processing unit is configured to perform inversion processing, specifically includes: a signal and a signal for subsequently outputting to one of the two columns of the second dual-polarized antennas Description The first weight coefficient is multiplied, and the signal outputted to the other of the two columns of the second dual-polarized antennas is multiplied by the second weight coefficient;

With reference to the second aspect or the first possible implementation manner of the second aspect, or the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the first polarization processing For the left-handed polarization process, the second polarization process is a right-handed polarization process.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, each of the dual-polarized antennas includes an antenna element in a first polarization direction and an antenna in a second polarization direction Vibrator

The baseband processing unit is configured to perform a first polarization processing on the signal that is subsequently transmitted to the first dual-polarized antenna of each of the two columns of the first dual-polarized antennas, including:

And multiplying the signal of the antenna element that is to be output to the first polarization direction of each column of the first dual-polarized antenna and the third weight coefficient; the subsequent output will be output to each column of the first dual-polarized antenna The signal of the antenna element in the second polarization direction is multiplied by the fourth weight coefficient;

The baseband processing unit is configured to perform a second polarization processing on the signal that is subsequently transmitted to each of the two dual-polarized antennas of the two columns of the second dual-polarized antenna, including:

And multiplying the signal of the antenna element that is to be output to the first polarization direction of the second dual-polarized antenna of each column by the fourth weight coefficient; the subsequent output to the second bipolar of each column Multiplying the signal of the antenna element of the second polarization direction of the antenna by the third weight coefficient;

In conjunction with the second aspect or the first possible implementation of the second aspect, or the second possible implementation of the second aspect, in a fifth possible implementation of the second aspect, the first polarization processing For the vertical polarization process, the second polarization process is a horizontal polarization process.

In conjunction with the fifth possible implementation of the second aspect, in a sixth possible implementation manner of the second aspect, each of the dual-polarized antennas includes an antenna element in a first polarization direction and an antenna in a second polarization direction Vibrator

The baseband processing unit is configured to perform a first polarization processing on the signal that is subsequently transmitted to each of the two dual-polarized first columns of the two dual-polarized antennas, including: An antenna element outputted to the first polarization direction of the first dual-polarized antenna of each column and an antenna of the second polarization direction The signals of the vibrator are respectively multiplied by a fifth weight coefficient;

And multiplying the signal of the antenna element that is to be output to the first polarization direction of the second dual-polarized antenna of each column by the fifth weight coefficient; the subsequent output will be output to the second bipolar of each column Multiplying the signal of the antenna element of the second polarization direction of the antenna by the sixth weight coefficient;

The beamforming method and device provided by the embodiments of the present invention perform the first polarization processing and the in-phase processing on the signals transmitted by the two columns of dual-polarized antennas, and perform the second poles on the signals transmitted by the other two columns of the dual-polarized antennas. Processing and inverting processing; finally outputting the processed signal to the corresponding dual-polarized antenna and transmitting it through the corresponding dual-polarized antenna, and the signals subjected to the first polarization processing and the in-phase processing, and The signals after the second polarization processing and the inverse processing process form a beam during the air propagation; the four columns of dual-polarized antennas are transmitted to transmit signals of the same beam port to form a beam, thereby realizing eight columns and double pairs. The polarized antenna transmits the signals output by the two beam ports to form two beams; there is no need to increase the beam port, and the increase of the beam port is avoided to cause an increase in network resource consumption; and, because the in-phase processed signal and the inverted signal are performed The polarization directions are orthogonal, which realizes the effect of the formed beam not synthesizing in amplitude and synthesizing in power.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. It can be understood that the following description The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a flowchart of a beamforming method 1 according to an embodiment of the present invention;

2 is a first schematic diagram of processing a signal output by a first beam port according to an embodiment of the present invention;

3 is a second schematic diagram of processing a signal output by a first beam port according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the first embodiment of the present invention; FIG.

FIG. 5 is a schematic diagram of a first processing manner of a signal sent by a base station according to an embodiment of the present disclosure;

6a and 6b are schematic views showing an alternative structure of the corresponding device in the first embodiment;

FIG. 7 is a schematic diagram of a second specific embodiment according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a second processing manner of a signal sent by a base station according to an embodiment of the present disclosure;

9a and 9b are schematic structural views of corresponding devices when belonging to the same multi-antenna system;

10a is a schematic diagram of a method for processing a signal by a base station belonging to different multi-antenna systems according to an embodiment of the present invention;

10b and 10c are schematic structural views of corresponding devices when belonging to different multi-antenna systems;

FIG. 11 is a schematic diagram of the principle of a third specific embodiment according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram of a wireless network device according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a beamforming system according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The present application describes various aspects in connection with a wireless network device, which may be a base station, which may be used to communicate with one or more user equipments, or may be used with one or more base stations having partial user equipment functions. Communication (such as communication between a macro base station and a micro base station, such as an access point); the wireless network device can also be a user equipment, and the user equipment can be used for communication by one or more user equipments (such as D2D communication), Can be used to communicate with one or more base stations. User equipment may also be referred to as user terminals and may include systems, subscriber units, subscriber stations, mobile stations, mobile wireless terminals, mobile devices, nodes, devices, remote stations, remote terminals, terminals, wireless communication devices, wireless communication devices, or Some or all of the features of the user agent. User equipment can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, smart phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), laptop computers, handheld communication devices, handheld computing Equipment, satellite wireless devices, wireless modem cards and/or for use in Other processing devices that communicate on the line system. A base station may also be referred to as an access point, a node, a Node B, an evolved Node B (eNB), or some other network entity, and may include some or all of the functions of the above network entities. The base station can communicate with the wireless terminal over the air interface. This communication can be done by one or more sectors. The base station can act as a router between the wireless terminal and the rest of the access network by converting the received air interface frame to an IP packet, wherein the access network includes an Internet Protocol (IP) network. The base station can also coordinate the management of air interface attributes and can also be a gateway between the wired network and the wireless network.

The application will present various aspects, embodiments, or features in a system that can include multiple devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules, etc. discussed in connection with the figures. In addition, a combination of these schemes can also be used.

In addition, in the embodiments of the present invention, the word "exemplary" is used to mean an example, an illustration, or a description. Any embodiment or design described as "example" in this application should not be construed as preferred or advantageous over other embodiments or designs. Rather, the term use examples is intended to present concepts in a concrete manner.

The network architecture and the service scenario described in the embodiments of the present invention are used to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation of the technical solutions provided by the embodiments of the present invention. The technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.

At present, a four-column dual-polarized antenna transmits signals outputted by two beam ports in a base station to form a beam in the presence of four columns of dual-polarized antennas (where the dual polarizations can be co-polarized and crossed) In the case of polarizing two polarization directions) and two beam ports (for example, beam port 0 and beam port 1), the column spacing between the antennas is half wavelength, and the signals of two columns of dual-polarized antennas transmit beam port 0, in addition Two columns of dual-polarized antennas transmit signal of beam port 1; taking beam port 0 as an example, each column of dual-polarized antennas includes two sets of dual-polarized antenna elements, and two sets of polarization directions of the two columns of dual-polarized antennas The signals transmitted by the same antenna element are processed in phase; the signals transmitted by the other two antenna elements with the same polarization direction in the two columns of dual-polarized antennas are inversely processed. The two signals processed in the same phase and the two signals after the inversion processing can form a beam, that is, form complementary on the cover, and the two are respectively derived from different polarization directions, and therefore, the amplitude is not synthesized in space. The power is synthesized so that the power processing capability of the base station is fully utilized. However, if you follow the current In this way, an eight-column dual-polarized antenna is implemented to transmit a signal output by the base station to form a beam, and four beam ports need to be set in the base station. However, if the beam port is increased, the corresponding pilot signal needs to be configured for the added beam port, and the added pilot signal consumes network resources, thereby increasing network resource consumption.

The following describes the base station as a wireless network device.

1 is a flowchart of a beamforming method 1 according to an embodiment of the present invention. As shown in FIG. 1, the method may include:

S101. The base station acquires a signal output by the first beam port in the base station.

The first beam port is any one of the N beam ports of the base station; N is an integer greater than or equal to 1. Optionally, N is an even number. Alternatively, N can also be an odd number.

In this embodiment, optionally, the first beam port corresponds to four columns of dual-polarized antennas, and the two columns of first dual-polarized antennas (first dual-polarized antenna group) are four columns and pairs corresponding to the first beam port. Two of the dual-polarized antennas in the polarized antenna; two columns of the second dual-polarized antenna (the second dual-polarized antenna group) are the other two of the four-column dual-polarized antennas corresponding to the first beam port Column dual polarized antenna.

S102. Before the base station inputs the signal into the first dual-polarized antenna group, the base station performs the first signal that is transmitted to each of the first dual-polarized antennas in the first dual-polarized antenna group. Polarization processing, obtaining two signals after the first polarization treatment.

Each of the first dual-polarized antennas corresponds to two first-polarized signals, and the first dual-polarized antenna group corresponds to four first-polarized signals.

S103. Before the base station inputs the signal into the second dual-polarized antenna group, the base station performs a second signal on the second dual-polarized antenna that is input to each of the second dual-polarized antenna groups. Polarization processing, obtaining two signals after the second polarization treatment.

Each second second polarized antenna corresponds to two first polarization processed signals, and the second dual polarized antenna group can correspond to four second polarized processed signals.

The execution sequence of S102 and S103 is not limited in the embodiment of the present invention, and may be performed at the same time or in any order.

Each column of the first dual-polarized antenna includes an antenna element in a first polarization direction and an antenna element in a second polarization direction. Each of the second dual-polarized antennas also includes an antenna element in a first polarization direction and an antenna element in a second polarization direction.

Optionally, the first polarization treatment and the second polarization treatment may be left-handed polarization and right-handed polarization.

Alternatively, the first polarization treatment and the second polarization treatment may be vertical polarization and horizontal polarization.

For example, as shown in FIG. 2, the left-handed polarization may include: a signal to be transmitted by an antenna element that is to be input to the first polarization direction of the first dual-polarized antenna group (the first dual-polarized antenna of each column) Multiplying the third weight coefficient and multiplying the signal transmitted by the antenna element of the second polarization direction of the first dual-polarized antenna group (the first dual-polarized antenna of each column) by the fourth weight coefficient And obtaining a signal after the first polarization processing; the right-handed polarization may include: transmitting the antenna element of the first polarization direction to be input to the second dual-polarized antenna group (the second dual-polarized antenna of each column) The signal is multiplied by the fourth weight coefficient, and the signal and the third weight that will be subsequently transmitted to the antenna element of the second polarization direction of the second dual-polarized antenna group (the second dual-polarized antenna of each column) The coefficients are multiplied to obtain a signal after the second polarization treatment.

The phase of the signal multiplied by the third weight coefficient is different from the phase of the signal multiplied by the fourth weight coefficient by a preset phase. Therefore, the signal corresponding to the third weight coefficient corresponding to the antenna element in the first polarization direction of each column of the first dual-polarized antenna corresponds to the fourth weight of the antenna element in the second polarization direction. The phase difference between the signals multiplied by the coefficients is a first preset phase; the signal corresponding to the fourth weight coefficient corresponding to the antenna element in the first polarization direction of each column of the second dual-polarized antenna, and And the phase difference between the signal corresponding to the third weight coefficient corresponding to the antenna element in the second polarization direction is a second preset phase; the first preset phase is equal to the absolute value of the second preset phase, That is, the preset phase is, but the sum of the first preset phase and the second preset phase is 0; therefore, the signal transmitted by the first dual-polarized antenna and the signal transmitted by the second dual-polarized antenna are positive. cross. Optionally, the preset phase is π/2. For example, the third weight coefficient is j and the fourth weight coefficient is 1.

For example, as shown in FIG. 3, the vertical polarization may include: a signal to be transmitted by an antenna element of a first polarization direction to be input to the first dual-polarized antenna group (the first dual-polarized antenna of each column) Multiplying the five weight coefficients, and multiplying the signal transmitted by the antenna elements of the second polarization direction of the first dual-polarized antenna group (the first dual-polarized antenna of each column) by the fifth weight coefficient, Thereby obtaining the signal after the first polarization processing; the horizontal polarization may comprise: transmitting the signal of the antenna element of the first polarization direction to be input to the second dual-polarized antenna group (the second dual-polarized antenna of each column) Multiplying with the fifth weight coefficient, and transmitting the signal of the antenna element of the second polarization direction of the second dual-polarized antenna group (the second dual-polarized antenna of each column) to the sixth weight coefficient Multiply to obtain the signal after the second polarization treatment. The fifth weight coefficient and the sixth weight coefficient are opposite to each other, for example, the fifth weight coefficient is 1, and the sixth weight coefficient is -1.

S104. Before inputting the signal into the first dual-polarized antenna group, the base station performs in-phase processing on the signals of the two columns of the first dual-polarized antennas input to the first dual-polarized antenna group, and inputs the second bipolar The signals of the two columns of the second dual-polarized antennas of the antenna group are respectively inverted.

Optionally, the in-phase processing may be equal-amplitude in-phase processing or non-equal-amplitude in-phase processing; correspondingly, the inverting processing may be equal-amplitude inversion processing or non-equal-amplitude inverting processing.

Optionally, as shown in FIG. 2 or FIG. 3, an implementation manner of performing equal-amplitude in-phase processing is: multiplying a signal input to the first dual-polarized antenna group by a first weight coefficient. In the case of the equal-amplitude in-phase processing after the polarization processing, each of the signals after the first polarization processing may be multiplied by the first weight coefficient. Since each signal after the first polarization processing is multiplied by the same weight coefficient, the signal transmitted by the first dual-polarized antenna of each column after multiplication is realized by equal-amplitude in-phase processing.

Optionally, as shown in FIG. 2 or FIG. 3, an implementation manner of performing equal-amplitude inversion processing is: inputting a signal in a second dual-polarized antenna in a second dual-polarized antenna group The first weight coefficient is multiplied, and the signal in the second column of the second dual-polarized antenna in the second dual-polarized antenna group is subsequently multiplied by the second weight coefficient. In the case of equal-amplitude in-phase processing after polarization processing, it may be: multiplying one signal after the second polarization processing by the first weight coefficient, and the other signal after the second polarization processing and the second weight The value coefficients are multiplied. The first weight coefficient and the second weight coefficient are weight coefficients orthogonal to each other. The weight coefficient multiplied by one signal after the second polarization processing, and the weight coefficient multiplied by the other path after the second polarization processing are orthogonal to each other; The signal transmitted by the dual-polarized antenna realizes equal-amplitude inversion processing.

Alternatively, S104 may be performed before S102 and S103, or may be performed after S102 and S103. Corresponding signal connections can be combined and/or shunted depending on the processing that the signal needs to continue.

S105. The base station respectively outputs the first polarization processed signals after the in-phase processing to the two columns of the first dual-polarized antennas in the first dual-polarized antenna group; and the second processing after the inverse processing. The polarization processed signals are correspondingly output to the two columns of the second dual polarized antennas in the second dual polarized antenna group.

Optionally, the first polarization processing and the second polarization processing are mutually orthogonal polarization processing.

In the method, the base station has multiple beam ports for outputting a plurality of different signals, and the plurality of beam ports of the base station are N, and N is an integer greater than or equal to 1. Here, any beam port of the N beam ports is taken as an example, and other beam ports are similar, and any beam is used here. The port is called the first beam port. In this embodiment, the signal output by the first beam port is transmitted by using four columns of dual-polarized antennas corresponding to the first beam port, and each column of dual-polarized antennas includes two sets of antenna elements with different polarization directions, that is, The antenna elements in each polarization direction of each column of the dual-polarized antenna transmit the signal, which is equivalent to copying the signals of the first beam port into the same 8 copies, and transmitting them through 8 sets of antenna elements; Two columns of dual-polarized antennas corresponding to one beam port are referred to as two columns of first dual-polarized antennas (also referred to as first dual-polarized antenna groups); four corresponding to the first beam port The other two columns of dual-polarized antennas in the column dual-polarized antenna are called two columns of second dual-polarized antennas (also referred to as the second dual-polarized antenna group); due to the first dual-polarized antenna (group) and the The signals transmitted by the two-day dual-polarized antenna (group) are different in polarization processing, so the dual-polarized antennas (groups) are distinguished by the first and second.

In the method, the signals output by the first beam port are respectively transmitted via the two columns of the first dual-polarized antenna and the two columns of the second dual-polarized antenna. The base station acquires a signal output by the first beam port in the base station, and first inputs a signal input to the first dual-polarized antenna before inputting the signal into each of the first dual-polarized antennas of the two columns of the first dual-polarized antenna. The polarization processing obtains two signals after the first polarization processing, such that the polarization direction of the signal after the first polarization processing is the first polarization direction. And the base station further performs a second polarization processing on the signal input to the second dual-polarized antenna before inputting the signal into each of the two dual-polarized antennas of the two columns of the second dual-polarized antenna to obtain two second polarizations. The processed signal is such that the polarization direction of the second polarization processed signal is the second polarization direction. Wherein the first polarization process and the second polarization process are used to make the first polarization direction orthogonal to the second polarization direction. Thus, the polarization direction of the signal after the first polarization treatment is orthogonal to the polarization direction of the signal after the second polarization treatment. Then, the obtained two-way first polarization-processed signals are subjected to in-phase processing; and the obtained two-way second polarization-processed signals are subjected to inversion processing.

Then, the base station respectively inputs the signals of the two first polarization processes after the in-phase processing to the two columns of the first dual-polarized antennas respectively; and the signals of the two second polarization processes after the inverse processing are respectively correspondingly Input to two columns of second dual-polarized antennas; then, the two columns of first dual-polarized antennas respectively transmit the received signals subjected to the first polarization processing and the in-phase processing, and the two columns of the second dual-polarized antennas respectively The received signal subjected to the second polarization processing and the inverted processing is transmitted. In the air interface, the signal after the first polarization processing and the in-phase processing, and the signal after the second polarization processing and the inverse processing are formed into beams.

The signal processed by the first polarization is processed in the same phase, and the reverse processing is performed. The signal of the polarization processing is orthogonal to the polarization processing of the first polarization processing and the second polarization processing, so the polarization direction of the signal subjected to the first polarization processing and the signal subjected to the second polarization processing is positive The signal processed in the same phase is orthogonal to the polarization direction of the inverted signal, so that the signals transmitted by the two columns of the first dual-polarized antenna and the two columns of the second dual-polarized day are not synthesized in amplitude, only It will be synthesized on the power, so that the power processing capability of the base station is fully utilized. Moreover, in the embodiment, the signals output by the same beam port can be transmitted by the four columns of dual-polarized antennas under the condition that the amplitude is not synthesized and the power is synthesized. Therefore, if the base station exists, 8 When a dual-polarized antenna is used, only two beam ports are needed, which saves network resource consumption due to the increase of the beam port.

Optionally, the in-phase processing described above is equal-amplitude in-phase processing, and the inverting processing is equal-amplitude inversion processing; or, the in-phase processing described above is non-equal-amplitude in-phase processing, and the inverting processing is non-equal-amplitude inversion processing.

If the signals transmitted by the two columns of the first dual-polarized antenna are not subjected to the first polarization processing, the signals of the two columns of the second dual-polarized antenna are not subjected to the second polarization processing, because the first dual-polarized antenna and the second double The polarized antennas are the same, which will cause the signal transmitted by the first dual-polarized antenna to be the same as the polarization of the signal transmitted by the second dual-polarized antenna, that is, to obtain four signals having the same polarization direction; and four polarizations After the in-phase processing and the inverting processing of the signals with the same direction, the formed signals are synthesized in amplitude, which may cause the beam pattern to be deformed, resulting in the beam coverage being inconsistent with the expected coverage, that is, the range of the desired coverage may not be Full coverage, and the range that is not expected to be covered is covered.

In the above embodiments, the in-phase processing and the inverting processing are described by taking equal-amplitude in-phase processing and equal-amplitude inversion processing as an example. Non-equal amplitude in-phase processing and non-equal-amplitude inverting processing are similar, only different amplitudes. , will not repeat them here.

The invention will now be described in terms of specific embodiments.

In the first embodiment, FIG. 4 is a schematic diagram of the first embodiment of the present invention. As shown in FIG. 4, the antenna system corresponding to the base station includes eight columns of dual-polarized antennas. Dual polarized antennas 1-8. In this embodiment, a four-column dual-polarized antenna is required to transmit one beam port. The base station in this embodiment has two beam ports, namely port 0 and port 1, port 0 corresponds to dual-polarized antenna 1-4, and port 1 corresponds to double. Polarized antennas 5-8. Each column of dual-polarized antennas has two antennas of different polarization directions, one with a polarization of +45° and the other with a polarization of -45°. The antennas of the different polarization directions of the dual-polarized antennas 1-4 transmit the signals of the port 0, wherein a in FIG. 4 is the signal of the port 0; and the antennas of the different polarization directions of the dual-polarized antennas 5-8 transmit the port 1 Signal, where b in Figure 4 is the signal of port 1.

First, the dual-polarized antennas 1-4 are divided into two groups, one is a dual-polarized

antenna

1 and 2, the other is a dual-polarized

antenna

3 and 4; the dual-polarized antennas 5-8 are divided into two groups. One set is dual-polarized

antennas

5 and 6, and the other set is dual-polarized

antennas

7 and 8. Performing circular polarization synthesis on two different polarization directions of the same column of dual-polarized antennas, and performing the same circular polarization synthesis on two different polarization directions of two dual-polarized antennas belonging to the same group; wherein, circular polarization Including left-handed polarization and right-handed polarization, therefore, the dual-polarized

antennas

1 and 2 can be respectively subjected to left-handed polarization synthesis, and the dual-polarized

antennas

3 and 4 are respectively subjected to right-handed polarization synthesis, and the dual-polarized antenna 5 is used. And left-handed polarization synthesis is performed separately from 6 and the double-

polarized antennas

7 and 8 are respectively subjected to right-handed polarization synthesis. Then, the same set of circularly polarized two columns of dual-polarized antennas are combined and combined, and the combined beam includes a sum beam and a difference beam. Therefore, the left-polarized dual-polarized

antennas

1 and 2 can be combined and beamed. Synthesis, the right-polarized dual-polarized

antennas

3 and 4 are subjected to differential beam synthesis, and the left-rotated dual-polarized

antennas

5 and 6 are combined and beam-synthesized, and the right-rotated polarized dual-polarized antenna is used. 7 and 8 perform differential beam synthesis; this ensures that the circular polarization directions of the dual-polarized antennas corresponding to the same port and beam and differential beam synthesis are orthogonal. Therefore, for the same port, the combined and beam and the difference beam are complementary in the direction coverage, and since the synthesized and the polarization directions of the beam and the difference beam are inconsistent, the finally formed beam is the combined beam and the beam. The power is combined with the power of the difference beam, not the amplitude combined beam.

To achieve the above solution, a method for processing the signal of the port 0 and the signal of the port 1 by the base station is as shown in FIG. 5 , wherein the first dual-polarized antenna is a dual-polarized antenna 1 and a dual-polarized antenna 2, and the second The dual-polarized antenna is a dual-polarized antenna 3 and a dual-polarized antenna 4, the third weight coefficient is j, the fourth weight coefficient is -j, the first weight coefficient is 1, and the second weight coefficient is -1. For the signal of port 0, the base station transmits the signal a transmitted by the antenna of the dual-polarized antenna 1 and the polarization direction of the dual-polarized antenna 2 with a polarization direction of +45°, respectively, by multiplying the weight coefficient j to realize the dual-polarized antenna 1 and The left-handed polarization processing of 2; the signal a transmitted by the antenna of the dual-polarized antenna 3 and the polarization direction of the dual-polarized antenna 4 of -45° is multiplied by the weight coefficient -j, respectively, to realize the dual-polarized antenna 3 and The right-handed polarization processing of 4; the signal a transmitted by the antenna with the polarization direction of the dual-polarized antenna 1 and the signal a transmitted by the antenna with the polarization direction of -45° are respectively associated with the weight coefficient 1 Multiply, the signal a transmitted by the antenna with the polarization direction of the dual-polarized antenna 2 of +45° and the signal a transmitted by the antenna with the polarization direction of -45° and the weight coefficient 1 respectively Multiply, realize the sum combining processing of the dual-polarized antennas 1 and 2; then transmit the signal a transmitted by the antenna with the polarization direction of the dual-polarized antenna 3 of +45° and the signal transmitted by the antenna with the polarization direction of -45° a is multiplied by a weight coefficient of 1, respectively, for dual polarization The signal a transmitted by the antenna with the polarization direction of the antenna 4 of +45° and the signal a transmitted by the antenna with the polarization direction of -45° are respectively multiplied by the weight coefficient -1 to realize the difference between the dual-polarized antennas 3 and 4. Beam synthesis processing.

Figures 6a and 6b are schematic illustrations of an alternative configuration of a corresponding device in a first embodiment. Figure 6b is a simplified illustration of Figure 6a. Optionally, the corresponding device may be a base station in the communication system. Taking port 0 as an example, the signal of port 0 is sent to the difference beam combining module respectively, wherein the sum weight weight of the sum is [1, 1], and the weight of the difference beam is [1, -1]. Since the sum beam and the difference beam need to be implemented on different polarizations, the sum beam is sent to the polarization synthesis module to implement left-handed polarization weighting, and the weighting value is [j, 1]; the difference beam is sent to the polarization synthesis. In the module, right-handed polarization is implemented, and the weighting value is [1, j]. After the polarization synthesis is completed, it is sent to the RF and antenna processing. The block diagram shown in Figure 6a can be further simplified to the block diagram shown in Figure 6b, both of which are equivalent.

In a second embodiment, FIG. 7 is a schematic diagram of a second embodiment of the present invention. As shown in FIG. 7, the antenna system corresponding to the base station includes eight columns of dual-polarized antennas. Dual polarized antennas 1-8. In this embodiment, a four-column dual-polarized antenna is required to transmit one beam port. The base station in this embodiment has two beam ports, namely port 0 and port 1, port 0 corresponds to dual-polarized antenna 1-4, and port 1 corresponds to double. Polarized antennas 5-8. Each column of dual-polarized antennas has two antennas of different polarization directions, one with a polarization of +45° and the other with a polarization of -45°. The antennas of different polarized directions in the dual-polarized antennas 1-4 transmit the signals of the port 0, wherein a in FIG. 7 is the signal of the port 0; and in the dual-polarized antennas 5-8, the antenna transmission ports 1 of different polarization directions Signal, where b in Figure 7 is the signal of port 1.

antenna

1 and 2, the other is a dual-polarized

antenna

antennas

5 and 6, and the other set is dual-polarized

antennas

7 and 8. Performing linear polarization synthesis on two different polarization directions of the same column of dual-polarized antennas, and performing the same linear polarization synthesis on two different polarization directions of two dual-polarized antennas belonging to the same group; wherein, linear polarization Including vertical polarization and horizontal polarization, therefore, the

dual polarization antennas

1 and 2 can be vertically polarized, and the

dual polarization antennas

3 and 4 can be horizontally polarized, respectively, and the

dual polarization antennas

5 and 6 The horizontal polarization synthesis is performed separately, and the

dual polarization antennas

7 and 8 are respectively subjected to vertical polarization synthesis. Then, the same set of linearly polarized two columns of dual-polarized antennas are combined and combined, and the combined beam includes a sum beam and a difference beam. Therefore, the vertically polarized dual-polarized

antennas

1 and 2 can be combined and beamed. Synthesis, the horizontally polarized dual-polarized

antennas

3 and 4 are subjected to differential beam synthesis, and the horizontally polarized dual-polarized

antennas

5 and 6 are combined and beam-combined to form a vertical pole. The dual-polarized

antennas

7 and 8 are subjected to differential beamforming; this ensures that the linear polarization directions of the dual-polarized antennas corresponding to the same port and the beam-to-difference beam synthesis are orthogonal. Therefore, for the same port, the combined and beam and the difference beam are complementary in the direction coverage, and since the synthesized and the polarization directions of the beam and the difference beam are inconsistent, the finally formed beam is the combined beam and the beam. The power is combined with the power of the difference beam, not the amplitude combined beam.

To achieve the above solution, a method for processing the signal of the port 0 and the signal of the port 1 by the base station is as shown in FIG. 8 , wherein the first dual-polarized antenna is a dual-polarized antenna 1 and a dual-polarized antenna 2, and the second The dual-polarized antenna is a dual-polarized antenna 3 and a dual-polarized antenna 4, the fifth weight coefficient is 1, the sixth weight coefficient is -1, the first weight coefficient is 1, and the second weight coefficient is -1. For the signal of port 0, the base station transmits a signal a transmitted by the antenna of the dual-polarized antenna 1 and the polarization direction of the dual-polarized antenna 2 with a polarization direction of +45°, respectively, with a weight coefficient of 1, respectively, to realize the dual-polarized antenna 1 and 2 vertical polarization processing; for the dual-polarized antenna 3, the signal a transmitted by the antenna of the dual-polarized antenna 4 having a polarization direction of -45° is multiplied by the weight coefficient -1, respectively, to realize the dual-polarized antenna 3 and The horizontal polarization processing of 4; the signal a transmitted by the antenna with the polarization direction of the dual-polarized antenna 1 and the signal a transmitted by the antenna with the polarization direction of -45° are respectively multiplied by the weight coefficient 1 The signal a transmitted by the antenna with the polarization direction of the dual-polarized antenna 2 of +45° and the signal a transmitted by the antenna with the polarization direction of -45° and the weight coefficient 1 respectively Multiply, realize the sum combining processing of the dual-polarized antennas 1 and 2; then transmit the signal a transmitted by the antenna with the polarization direction of the dual-polarized antenna 3 of +45° and the signal transmitted by the antenna with the polarization direction of -45° a is multiplied by a weight coefficient of 1, respectively, a signal a transmitted by an antenna having a polarization direction of +45° of the dual-polarized antenna 4, and a signal a transmitted by an antenna having a polarization direction of -45°, respectively, and a weight coefficient - Multiplying 1 to achieve differential beam synthesis processing of dual-polarized antennas 3 and 4.

It should be noted that the above dual-polarized antennas 1-8 may belong to the same multi-antenna system, or the above-mentioned dual-polarized antennas 1-4 belong to one multi-antenna system, and the above-mentioned dual-polarized antennas 5-8 Belongs to another multi-antenna system.

9a and 9b are schematic structural views of corresponding devices when they belong to the same multi-antenna system. Taking port 0 as an example, the signal of port 0 is sent to the difference beam combining module respectively, wherein the sum weight weight of the sum is [1, 1], and the weight of the difference beam is [1, -1]. Since the sum beam and the difference beam need to be implemented on different polarizations, the sum beam is sent to the polarization synthesis module to implement vertical polarization weighting, and the weighting value is [1, 1]; the difference beam is sent to the polarization synthesis. In the module, horizontal polarization is achieved with a weighting value of [1, -1]. After the polarization synthesis is completed, it is sent to the RF and antenna processing. The block diagram shown in Figure 9a can be further simplified to the block diagram shown in Figure 9b, both of which are equivalent.

FIG. 10a is a schematic diagram of a method for processing signals of a base station belonging to different multi-antenna systems according to an embodiment of the present invention. Two 8-column antennas are used to form an 8-antenna cell. As shown in FIG. 10a, each of antenna A and antenna B has four columns of cross-polarized antennas. In the first step, the two antennas adjacent to the antenna A and the antenna B are respectively divided into two groups, and two different polarization directions of the same antenna are combined into a circular polarization, and the circular polarization directions of the same group are the same, and the two groups The antennas have different polarization directions. In the second step, the linearly-polarized antennas of the same group are synthesized into a beam and a difference beam respectively, and it is necessary to ensure that the same broadcast beam port and the beam and the difference beam use different linear polarization directions. In Fig. 10a, the four antennas of the A antenna and the B antenna are cross-polarized to synthesize an equivalent four-column circularly polarized antenna, wherein the first and second antennas of the A antenna are left-handed, and the third and fourth are right-handed, 1 and 2. The antenna synthesizes the sum of port 0 and the beam, and the 3 and 4 antennas synthesize the difference beam of port 0; the first and second antennas of the B antenna adopt right-handed polarization, 3 and 4 adopt left-handed polarization, and the sum of 1 and 2 antennas synthesize port 1 Beams, 3 and 4 synthesize the difference beam of port 1. The processing diagram of the corresponding device is shown in FIG. 10b and FIG. 10c. Taking port 0 as an example, the signal of port 0 is sent to the difference beam combining module respectively, wherein the sum weight of the sum beam is [1, 1], and the difference beam is weighted. The weight is [1, -1]. Since the sum beam and the difference beam need to be implemented on different polarizations, the sum beam is sent to the polarization synthesis module to implement left-handed polarization weighting, and the weighting value is [j, 1]; the difference beam is sent to the polarization synthesis. In the module, right-handed polarization is implemented, and the weighting value is [1, j]. After the polarization synthesis is completed, it is sent to the RF and antenna processing. The block diagram shown in Figure 10b can be further simplified to the block diagram shown in Figure 10c, which is equivalent.

In a third specific embodiment, FIG. 11 is a schematic diagram of a third embodiment of the present invention. As shown in FIG. 11, the antenna system corresponding to the base station includes 16 columns of dual-polarized antennas. Dual polarized antennas 1-16. In this embodiment, a four-column dual-polarized antenna is required to transmit one beam port. The base station in this embodiment has four beam ports, which are

ports

0, 1, 2, and 3, and port 0 corresponds to dual-polarized antennas 1-4 and ports. 1 corresponds to dual-polarized antennas 5-8, port 2 corresponds to dual-polarized antennas 9-12, and port 3 corresponds to dual-polarized antennas 13-16. Each column of dual-polarized antennas has two antennas of different polarization directions, one with a polarization of +45° and the other with a polarization of -45°. The antennas of different polarized directions in the dual-polarized antennas 1-4 transmit the signals of the port 0, wherein a in FIG. 11 is the signal of the port 0; in the dual-polarized antennas 5-8, the antenna transmission ports 1 of different polarization directions a signal, wherein b is the signal of port 1 in FIG. 11; the signal of the antenna transmission port 2 of different polarization directions in the dual-polarized antenna 9-12, wherein c is the signal of port 2 in FIG. 11; the dual-polarized antenna The signals of the antenna transmission port 3 of different polarization directions in 13-16, wherein d in Fig. 11 is the signal of the port 3.

antenna

1 and 2, and the other is Dual-polarized

antennas

3 and 4; the dual-polarized antennas 5-8 are divided into two groups, one is a dual-polarized

antenna

5 and 6, the other is a dual-polarized

antenna

7 and 8; the dual-polarized antenna 9 -12 is divided into two groups, one is dual-polarized

antennas

9 and 10, the other is dual-polarized

antennas

11 and 12; the dual-polarized antennas 13-16 are divided into two groups, one is a dual-polarized

antenna

13 and 14, the other group is dual-polarized

antennas

15 and 16. Performing circular polarization synthesis on two different polarization directions of the same column of dual-polarized antennas, and performing the same circular polarization synthesis on two different polarization directions of two dual-polarized antennas belonging to the same group; wherein, circular polarization Includes left-handed polarization and right-handed polarization. Then, the two sets of dual-polarized antennas that are circularly polarized in the same group are combined and combined, and the combined beam includes a beam and a difference beam; thus, the dual-polarized antenna corresponding to the same port and beam and differential beam synthesis can be ensured. The circular polarization direction is orthogonal. Therefore, for the same port, the combined and beam and the difference beam are complementary in the direction coverage, and since the synthesized and the polarization directions of the beam and the difference beam are inconsistent, the finally formed beam is the combined beam and the beam. The power is combined with the power of the difference beam, not the amplitude combined beam. For a specific implementation process, refer to the related description in the foregoing first embodiment, and details are not described herein again.

Alternatively, two different polarization directions of the same column of dual-polarized antennas are linearly synthesized, and two different polarization directions of the two dual-polarized antennas belonging to the same group are subjected to the same linear polarization synthesis; Linear polarization includes vertical polarization and horizontal polarization. Then, the same set of two columns of dual-polarized antennas are subjected to combined beamforming, and the combined beam includes a beam and a difference beam; thus, the dual-polarized antenna corresponding to the same port and beam and differential beam synthesis can be ensured. The line polarization directions are orthogonal. Therefore, for the same port, the combined and beam and the difference beam are complementary in the direction coverage, and since the synthesized and the polarization directions of the beam and the difference beam are inconsistent, the finally formed beam is the combined beam and the beam. The power is combined with the power of the difference beam, not the amplitude combined beam. For a specific implementation process, refer to the related description in the foregoing first embodiment, and details are not described herein again.

Optionally, the beam port in the foregoing embodiments of the present invention may be a broadcast beam port, and the signal output by the beam port is a broadcast signal, and the formed beam is a broadcast beam.

According to the foregoing method, an embodiment of the present invention further provides a device. As shown in FIG. 12, the device may be a wireless network device 10, where the wireless network device 10 corresponds to a wireless network device in the foregoing method. The wireless network device may be a base station or other devices, which is not limited herein.

The wireless network device can include a processor 110, a memory 120, a bus system 130, a receiver 140, and a transmitter 150. Wherein, the processor 110, the memory 120, the receiver 140 and the transmitter 150 is connected by a bus system 130 for storing instructions for executing instructions stored in the memory 120 to control the receiver 140 to receive signals, and controlling the transmitter 150 to transmit signals to complete the wireless method in the above method. The steps of a network device (such as a base station). The receiver 140 and the transmitter 150 may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.

As an implementation, the functions of the receiver 140 and the transmitter 150 can be implemented by a dedicated chip through a transceiver circuit or a transceiver. The processor 110 can be implemented by a dedicated processing chip, a processing circuit, a processor, or a general purpose chip.

As another implementation manner, a wireless access device provided by an embodiment of the present invention may be implemented by using a general-purpose computer. The program code that is to implement the functions of the processor 110, the receiver 140 and the transmitter 150 is stored in a memory, and the general purpose processor implements the functions of the processor 110, the receiver 140 and the transmitter 150 by executing the code in the memory.

For the concepts, explanations, detailed descriptions and other steps related to the technical solutions provided by the embodiments of the present invention, refer to the descriptions of the foregoing methods or other embodiments, which are not described herein.

Optionally, the foregoing solutions in the embodiments of the present invention may be implemented in a baseband processing unit and a radio frequency processing unit of a base station, for example, the baseband processing unit performs the foregoing first polarization processing, second polarization processing, and in-phase processing. And inverting processing, the RF processing unit outputs the signal processed by the baseband processing unit to each column of the dual-polarized antenna.

FIG. 13 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 13, the base station in this embodiment may include: N beam ports, a baseband processing unit 22, and a radio frequency processing unit 23, where the N is greater than or An integer equal to 1; only one beam port is shown in FIG. 13, the other beam ports are similar, the beam port is referred to as a first beam port 21, and the first beam port 21 is among the N beam ports of the base station Any of the beam ports;

a first beam port 21 for outputting a signal to the baseband processing unit 12;

The baseband processing unit 22 is configured to acquire a signal output by the first beam port 21 in the base station; before the radio frequency processing unit 23 outputs the signal to the two columns of the first dual-polarized antenna, the subsequent output is to The signals transmitted by each of the first dual-polarized antennas of the two columns of the first dual-polarized antenna are subjected to first polarization processing and in-phase processing, wherein the in-phase processing is to output the first dual polarization to the two columns. The signals of the antennas are respectively processed in the same phase; the signals are input at the RF processing unit 23 Before the two columns of the second dual-polarized antenna are output, the signal that is subsequently transmitted to the second dual-polarized antenna of each of the two columns of the second dual-polarized antenna is subjected to the second polarization processing and the inversion Processing, wherein the inverting process is to perform phase opposite processing on signals respectively outputted to the two columns of the second dual-polarized antennas;

The RF processing unit 23 is configured to obtain the in-phase processing and the first polarization-processed signal output by the baseband processing unit 22, and the reverse-phase processing and the first polarization-processed signal; The signals after the polarization processing are respectively output to the two columns of first dual-polarized antennas, and the signals after the inverse processing and the second polarization processing are respectively output to the two columns. Two dual polarized antennas;

Optionally, the in-phase processing is equal-amplitude in-phase processing or non-equal-amplitude in-phase processing; and the inverting processing is equal-amplitude inversion processing or non-equal-amplitude inverting processing.

Optionally, when the in-phase processing is equal-amplitude in-phase processing, the baseband processing unit 22 is configured to: when the two-channel first polarization-processed signals are processed in the same phase, specifically: The polarization processed signals are respectively multiplied by the first weight coefficient;

When the inverting processing is equal-amplitude inversion processing, the baseband processing unit 22 performs the inverting processing on the signals after the two second polarization processing, specifically for: using the two second poles One of the signals of the processed signal is multiplied by the first weight coefficient, and the other of the two second polarization processed signals is multiplied by the second weight coefficient;

The first weight coefficient and the second weight coefficient are weight coefficients orthogonal to each other.

Optionally, the first polarization processing is a left-handed polarization processing, and the second polarization processing is a right-handed polarization processing.

Optionally, each column of dual-polarized antennas includes an antenna element in a first polarization direction and an antenna element in a second polarization direction;

The baseband processing unit 22 is configured to: when the first polarization processing is performed on the signal transmitted by the first dual-polarized antenna in each of the two columns of the first dual-polarized antennas, The signal transmitted by the antenna element in the first polarization direction of the antenna is multiplied by the third weight coefficient; and each column is The signal transmitted by the antenna element in the second polarization direction of the first dual-polarized antenna is multiplied by the fourth weight coefficient;

The baseband processing unit 22 is configured to: when the second polarization processing is performed on the signal transmitted by each of the two columns of the second dual-polarized antennas, And multiplying a signal transmitted by the antenna element in the first polarization direction of the antenna by the fourth weight coefficient; and transmitting a signal transmitted by the antenna element in the second polarization direction of each column of the second dual-polarized antenna Multiplying the third weight coefficient;

Optionally, the first polarization processing is a vertical polarization processing, and the second polarization processing is a horizontal polarization processing.

The baseband processing unit 22 is configured to: when the first polarization processing is performed on the signal transmitted by the first dual-polarized antenna in each of the two columns of the first dual-polarized antennas, The antenna element in the first polarization direction of the antenna and the signal transmitted by the antenna element in the second polarization direction are respectively multiplied by a fifth weight coefficient;

The baseband processing unit 22 is configured to: when the second polarization processing is performed on the signal transmitted by each of the two columns of the second dual-polarized antennas, The signal transmitted by the antenna element in the first polarization direction of the antenna is multiplied by the fifth weight coefficient; the signal transmitted by the antenna element in the second polarization direction of each column of the second dual-polarized antenna is Multiplying six weight coefficients;

The base station of this embodiment may be used to implement the technical solution of the foregoing method embodiments of the present invention. The implementation principle and the technical effects are similar, and details are not described herein again.

14 is a schematic structural diagram of a beamforming system according to an embodiment of the present invention. As shown in FIG. 14, the beamforming system of the present embodiment includes a wireless network device 10 (such as the base station 30 in FIG. 14) and an 8N column double. The polarized antenna 40, N is an integer greater than or equal to 2; wherein the structure of the base station 30 adopts the structure shown in FIG. 13 , which can correspondingly implement the technical solutions of the foregoing method embodiments of the present invention, and the implementation principle and technology thereof The effect is similar and will not be described here; the base station 30 includes 2N beam ports. Each beam port corresponds to four columns of dual-polarized antennas. Therefore, in the beamforming system of the present embodiment, 2N beam ports correspond to 8N dual-polarized antennas. It should be noted that only two beam ports are shown in the base station 30 in this embodiment. Correspondingly, only eight columns of dual-polarized antennas 40 are shown in the system in this embodiment.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing storage medium includes: read-only memory (English: Read-Only Memory, ROM for short), random access memory (English: Random Access Memory, RAM), disk or A variety of media such as optical discs that can store program code.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A beamforming method, comprising:

The wireless network device acquires a signal output by the first beam port in the wireless network device, where the first beam port is any one of N beam ports of the wireless network device; the N is greater than or equal to An integer of 1;

The wireless network device outputs a first dual polarization to each of the two columns of first dual-polarized antennas before outputting the signal to the two columns of first dual-polarized antennas. The signal transmitted by the antenna is subjected to a first polarization process and an in-phase process, wherein the in-phase processing is to perform the same phase processing on the signals respectively outputted to the two columns of the first dual-polarized antennas;

The wireless network device outputs a second dual polarization to each of the two columns of the second dual-polarized antennas before outputting the signals to the two columns of the second dual-polarized antennas. The signal transmitted by the antenna performs a second polarization process and an inversion process, wherein the inverting process is a process of respectively phase-reversing signals respectively outputted to the two columns of the second dual-polarized antennas;

Transmitting, by the wireless network device, the in-phase processing and the first polarization-processed signals to the two columns of first dual-polarized antennas respectively, and performing the inverse processing and the second polarization processing Signals are respectively output to the two columns of second dual-polarized antennas;

The first beam port corresponds to four columns of dual-polarized antennas, and the two columns of first dual-polarized antennas are two columns of dual-polarized antennas corresponding to the first beam port; The antenna is the other two columns of dual-polarized antennas corresponding to the first beam port;

The first polarization processing and the second polarization processing are orthogonal polarization processing.
The method according to claim 1, wherein the in-phase processing is equal-amplitude in-phase processing or non-equal-amplitude in-phase processing; and the inverting processing is equal-amplitude inversion processing or non-equal amplitude inversion processing.
The method according to claim 2, wherein when said in-phase processing is equal-amplitude in-phase processing, said performing in-phase processing comprises: said wireless network device to subsequently output to two columns of first dual polarization The signals of the antenna are respectively multiplied by the first weight coefficient;

When the inverting process is equal-amplitude inversion processing, the inverting process includes:

The wireless network device multiplies a signal outputted to one of the two columns of the second dual-polarized antennas by the first weight coefficient, which will be subsequently output to the two columns of the second dual-polarized antenna. The signal of the other column is multiplied by the second weight coefficient;

The first weight coefficient and the second weight coefficient are mutually opposite weight coefficients.
The method according to any one of claims 1 to 3, wherein the first polarization processing is left-handed polarization processing and the second polarization processing is right-handed polarization processing.
The method according to claim 4, wherein each column of dual-polarized antennas comprises an antenna element in a first polarization direction and an antenna element in a second polarization direction;

The wireless network device performs a first polarization process on the signal that is subsequently transmitted to the first dual-polarized antenna of each of the two columns of the first dual-polarized antennas, including:

The wireless network device multiplies the signal of the antenna element that is output to the first polarization direction of each column of the first dual-polarized antenna by a third weight coefficient; the wireless network device will subsequently output to The signal of the antenna element in the second polarization direction of each column of the first dual-polarized antenna is multiplied by the fourth weight coefficient;

The wireless network device performs a second polarization process on the signal that is subsequently transmitted to the second dual-polarized antenna of each of the two columns of the second dual-polarized antennas, including:

The wireless network device multiplies the signal of the antenna element that is output to the first polarization direction of each column of the second dual-polarized antenna and the fourth weight coefficient; the wireless network device will follow The signal output to the antenna element of the second polarization direction of the second dual-polarized antenna of each column is multiplied by the third weight coefficient;

The phase of the signal multiplied by the third weight coefficient is different from the phase of the signal multiplied by the fourth weight coefficient by a preset phase.
The method according to any one of claims 1 to 3, wherein the first polarization processing is vertical polarization processing and the second polarization processing is horizontal polarization processing.
The method according to claim 6, wherein each column of dual-polarized antennas comprises an antenna element in a first polarization direction and an antenna element in a second polarization direction;

The wireless network device performs a first polarization process on the signal that is subsequently transmitted to the first dual-polarized antenna of each of the two columns of the first dual-polarized antennas, including:

The wireless network device multiplies the signals of the antenna elements of the first polarization direction and the antenna elements of the second polarization direction outputted to the first polarization antenna of each column by a fifth weight coefficient;

The wireless network device performs a second polarization process on the signal that is subsequently transmitted to the second dual-polarized antenna of each of the two columns of the second dual-polarized antennas, including:

The wireless network device will subsequently output to the first polarization direction of each column of the second dual-polarized antenna The signal of the antenna element is multiplied by the fifth weight coefficient; the wireless network device will subsequently output the signal to the antenna element of the second polarization direction of each column of the second dual-polarized antenna Multiplying the sixth weight coefficient;

The fifth weight coefficient and the sixth weight coefficient are weight coefficients orthogonal to each other.
A wireless network device, comprising: N beam ports, a baseband processing unit, and a radio frequency processing unit; the first beam port is any one of N beam ports of the wireless network device; An integer greater than or equal to 1;

The first beam port is configured to output a signal to the baseband processing unit;

The baseband processing unit is configured to acquire a signal output by the first beam port in the wireless network device; before outputting the signal to two columns of first dual-polarized antennas, the wireless network device performs subsequent The signals transmitted to the first dual-polarized antenna of each of the two columns of the first dual-polarized antennas are subjected to a first polarization process and an in-phase process, wherein the in-phase processing is to output the first to the two columns first The signals of the dual-polarized antennas are respectively subjected to the same phase processing; before the signals are output to the two columns of the second dual-polarized antennas, the wireless network device pairs are subsequently output to the two columns of the second dual-polarized antennas The signals transmitted by each of the second dual-polarized antennas in each column are subjected to a second polarization process and an inversion process, wherein the inverting process is to respectively phase-reverse the signals respectively outputted to the two columns of the second dual-polarized antennas. deal with;

The radio frequency processing unit is configured to acquire the in-phase processing and the first polarization-processed signal output by the baseband processing unit, and the reverse-phase processing and the first polarization-processed signal; The signals after the first polarization processing are respectively output to the two columns of first dual-polarized antennas, and the signals after the inverse processing and the second polarization processing are respectively output to the two Column second dual polarized antenna;

The first beam port corresponds to four columns of dual-polarized antennas, and the two columns of first dual-polarized antennas are two columns of dual-polarized antennas corresponding to the first beam port; The antenna is the other two columns of dual-polarized antennas corresponding to the first beam port;

The first polarization processing and the second polarization processing are orthogonal polarization processing.
The wireless network device according to claim 8, wherein the in-phase processing is equal-amplitude in-phase processing or non-equal-amplitude in-phase processing; and the inverting processing is equal-amplitude inversion processing or non-equal-amplitude inversion processing.
The wireless network device according to claim 9, wherein said in-phase processing For equal-amplitude in-phase processing, the baseband processing unit is configured to perform in-phase processing, including:

And multiplying a signal that is subsequently outputted to the two columns of the first dual-polarized antennas by a first weight coefficient;

The inverting processing is equal-amplitude inversion processing, and when the baseband processing unit is configured to perform inversion processing, specifically includes: a signal and a signal for subsequently outputting to one of the two columns of the second dual-polarized antennas Multiplying the first weight coefficient, and multiplying the signal outputted to the other of the two columns of the second dual-polarized antennas by the second weight coefficient;

The first weight coefficient and the second weight coefficient are mutually opposite weight coefficients.
The wireless network device according to any one of claims 8 to 10, wherein the first polarization processing is left-hand polarization processing and the second polarization processing is right-hand polarization processing.
The wireless network device according to claim 11, wherein each column of dual-polarized antennas comprises an antenna element in a first polarization direction and an antenna element in a second polarization direction;

The baseband processing unit is configured to perform a first polarization processing on the signal that is subsequently transmitted to the first dual-polarized antenna of each of the two columns of the first dual-polarized antennas, including:

And multiplying the signal of the antenna element that is to be output to the first polarization direction of each column of the first dual-polarized antenna and the third weight coefficient; the subsequent output will be output to each column of the first dual-polarized antenna The signal of the antenna element in the second polarization direction is multiplied by the fourth weight coefficient;

The baseband processing unit is configured to perform a second polarization processing on the signal that is subsequently transmitted to each of the two dual-polarized antennas of the two columns of the second dual-polarized antenna, including:

And multiplying the signal of the antenna element that is to be output to the first polarization direction of the second dual-polarized antenna of each column by the fourth weight coefficient; the subsequent output to the second bipolar of each column Multiplying the signal of the antenna element of the second polarization direction of the antenna by the third weight coefficient;

The phase of the signal multiplied by the third weight coefficient is different from the phase of the signal multiplied by the fourth weight coefficient by a preset phase.
The wireless network device according to any one of claims 8 to 10, wherein the first polarization processing is vertical polarization processing and the second polarization processing is horizontal polarization processing.
The wireless network device according to claim 13, wherein each column of dual-polarized antennas comprises an antenna element in a first polarization direction and an antenna element in a second polarization direction;

The baseband processing unit is configured to perform a first polarization processing on the signal that is subsequently transmitted to each of the two dual-polarized first columns of the two dual-polarized antennas, including: Lose The signals of the antenna element in the first polarization direction and the antenna element in the second polarization direction of each column of the first dual-polarized antenna are respectively multiplied by a fifth weight coefficient;

The baseband processing unit is configured to perform a second polarization processing on the signal that is subsequently transmitted to each of the two dual-polarized antennas of the two columns of the second dual-polarized antenna, including:

And multiplying the signal of the antenna element that is to be output to the first polarization direction of the second dual-polarized antenna of each column by the fifth weight coefficient; the subsequent output will be output to the second bipolar of each column Multiplying the signal of the antenna element of the second polarization direction of the antenna by the sixth weight coefficient;

The fifth weight coefficient and the sixth weight coefficient are weight coefficients orthogonal to each other.