WO2018006812A1

WO2018006812A1 - Signal processing method and apparatus, and base station

Info

Publication number: WO2018006812A1
Application number: PCT/CN2017/091789
Authority: WO
Inventors: 卢鹏; 杨朝建; 熊聪
Original assignee: 华为技术有限公司
Priority date: 2016-07-08
Filing date: 2017-07-05
Publication date: 2018-01-11
Also published as: CN106060973A; CN106060973B

Abstract

Disclosed in the present application is a base station. The base station comprises an array antenna and a baseband processing unit (BBU). The array antenna comprises n reception ports, n being a positive integer greater than 3. The array antenna is used for receiving uplink signals through m reception ports among n reception ports. The BBU is used for obtaining first uplink signals and second uplink signals, performing demodulation according to the first uplink signals and performing uplink scheduling according to the second uplink signals, the first uplink signals being uplink signals received through the m reception ports, m being a positive integer greater than q and is not greater than n, q is the number of downlink beams of the array antenna, and the second uplink signals being uplink signals obtained by performing digital forming on the first uplink signals according to a downlink directional diagram of the array antenna. By implementing the base station provided in the embodiment of the present application, the utilization rate of uplink performance of the antennas is improved; it is ensured that a cell in which a user equipment is located is not be strongly interfered, and accordingly there are available resources for scheduling.

Description

Method, device and base station for signal processing

The present application claims priority to Chinese Patent Application No. 201610537124.2, entitled "A Method, Apparatus and Base Station for Signal Processing", filed on July 8, 2016, the entire contents of In this application.

Technical field

The present application relates to the field of communications technologies, and in particular, to a signal processing method, apparatus, and base station.

Background technique

Currently widely used intra-frequency coverage multi-sector networking, generally adopts multi-column split antenna or active antenna system (Active Antenna System AAS), multi-sector is used in the downlink, and 2Rx is used in each sector on the uplink, that is, Two receiving ports receive, but the number of actually receivable ports of the multi-column antenna is greater than the number of sectors multiplied by 2Rx. For example, taking a four-column antenna as an example, a four-column antenna has two sectors, so four receiving ports are used in the uplink, but in reality, four-column antennas have eight receiving ports, so that there are four receiving ports. The uplink is idle, so the existing scheme does not optimize the uplink performance of the multi-column antenna.

Summary of the invention

In order to solve the problem of low uplink performance utilization of the antenna in the prior art, the embodiment of the present application provides a method, a device, and a base station for signal processing, which can receive uplink signals through all receiving ports of the antenna, thereby improving uplink performance of the antenna. Utilization rate increases the uplink capacity.

A first aspect of the present application provides a base station, where the base station includes an array antenna and a baseband unit (BBU), the array antenna includes n receiving ports, and n is a positive integer greater than 3; the array antenna is used to pass The m receiving ports of the n receiving ports receive the uplink signal; the BBU is configured to acquire the first uplink signal and the second uplink signal, perform demodulation according to the first uplink signal, and perform uplink scheduling according to the second uplink signal; An uplink signal is an uplink signal received through m receiving ports, where m is a positive integer greater than q and not greater than n, q is the number of downlink beams of the array antenna, and the second uplink signal is a downlink direction map according to the array antenna The first uplink signal is subjected to digital shaping to obtain an uplink signal. It can be seen from the above first aspect that the uplink signal is received by more receiving ports than the downlink beam, thereby improving the utilization of the uplink performance of the antenna, and isolating the signal for scheduling and the signal for demodulation, for The demodulated signal adopts the uplink signal initially received by the receiving port, and the signal used for scheduling uses the uplink signal that is digitally shaped according to the downlink direction picture, thereby ensuring that the cell where the user equipment is located is not strongly interfered, and thus available resources are available. Schedule.

In combination with the first aspect, in a first possible implementation, the base station further includes a digital shaping module, and the digital shaping module is configured to perform digital shaping on the first uplink signal according to the downlink direction of the array antenna to obtain a second uplink. a signal; the BBU is configured to acquire a second uplink signal from the digital shaping module. As can be seen from the first possible implementation manner of the foregoing first aspect, the digital shaping module can perform digital shaping on the downlink signal according to the first uplink signal originally received by the uplink receiving port, and then obtain the second shape after the shaping. The uplink signal ensures that the cell where the user equipment is located is not strongly interfered, so that available resources can be scheduled.

With reference to the first aspect, in a second possible implementation manner, the BBU is configured to perform digital shaping on the first uplink signal according to a downlink pattern of the array antenna to obtain the second uplink signal. The second possible reality from the first aspect above The current mode can be seen that the BBU can perform digital shaping on the downlink signal according to the downlink signal received by the uplink receiving port, and then obtain the second uplink signal after the shaping, thereby ensuring that the cell where the user equipment is located does not Be strongly interfered so that available resources are available for scheduling.

In conjunction with the first possible implementation of the first aspect, in a third possible implementation, the base station further includes a radio frequency module, and the digital profiling module is integrated on the radio frequency module. It can be seen from the third possible implementation manner of the foregoing first aspect that the function of the digital shaping module is integrated on the radio frequency module, and the first uplink signal originally received by the uplink receiving port can be digitally shaped according to the downlink direction diagram. Then, the second uplink signal after the shaping is obtained, thereby ensuring that the cell where the user equipment is located is not strongly interfered, and thus available resources can be scheduled.

The second aspect of the present application provides a method for signal processing, where the method is applied to a base station, where the base station includes an array antenna and a baseband processing unit BBU. The array antenna includes n receiving ports, and n is a positive integer greater than 3. The method includes: The BBU obtains the first uplink signal and the second uplink signal. The first uplink signal is an uplink signal received through the m receiving ports, where m is a positive integer greater than q and not greater than n, and q is a downlink beam of the array antenna. The quantity, the second uplink signal is an uplink signal obtained by digitally shaping the first uplink signal according to the downlink direction of the array antenna; the BBU performs demodulation according to the first uplink signal; and the BBU performs uplink scheduling according to the second uplink signal. It can be seen from the above second aspect that the uplink signal is received by the receiving port that is more than the downlink beam, thereby improving the utilization of the uplink performance of the antenna, and isolating the signal for scheduling and the signal for demodulation, for The demodulated signal adopts the uplink signal initially received by the receiving port, and the signal used for scheduling uses the uplink signal that is digitally shaped according to the downlink direction picture, thereby ensuring that the cell where the user equipment is located is not strongly interfered, and thus available resources are available. Schedule.

With reference to the second aspect, in a first possible implementation, the base station further includes a digital forming module, where the step BBU in the second aspect acquires the second uplink signal, including: the BBU obtains the second uplink from the digital forming module. The signal, the second uplink signal is obtained by digitally shaping the first uplink signal according to the downlink pattern of the array antenna by the digital shaping module. As can be seen from the first possible implementation manner of the foregoing first aspect, the digital shaping module can perform digital shaping on the downlink signal according to the first uplink signal originally received by the uplink receiving port, and then obtain the second shape after the shaping. The uplink signal ensures that the cell where the user equipment is located is not strongly interfered, so that available resources can be scheduled.

With reference to the second aspect, in a second possible implementation manner, the BBU obtains the second uplink signal, and the BBU performs digital shaping on the first uplink signal according to the downlink direction of the array antenna to obtain the second uplink signal. It can be seen from the second possible implementation manner of the foregoing first aspect that the BBU can perform digital shaping on the downlink uplink image for the first uplink signal originally received by the uplink receiving port, and then obtain the second uplink signal after the shaping. Therefore, it is ensured that the cell where the user equipment is located is not strongly interfered, so that available resources can be scheduled.

A third aspect of the present application provides an apparatus for querying baseband processing, the apparatus being configured to implement the functions of the method provided by any of the foregoing second aspect or the optional implementation of the second aspect, implemented by hardware/software, hardware/ The software includes units corresponding to the above functions.

A fourth aspect of the present application provides a computer storage medium storing the processing program of the signal processing of the second aspect or any alternative implementation of the second aspect.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 application. For this Those skilled in the art can also obtain other drawings based on these drawings without paying creative labor.

1 is a schematic structural view of an array antenna;

2 is a schematic structural diagram of a base station in an embodiment of the present application;

3 is a direction diagram of a downlink beam in the embodiment of the present application;

4 is another schematic structural diagram of a base station in an embodiment of the present application;

FIG. 5 is another schematic structural diagram of a base station in an embodiment of the present application;

6 is a three-cracking direction diagram of a downlink beam in the embodiment of the present application;

7 is a direction diagram of an uplink beam in an embodiment of the present application;

8 is a schematic diagram of an embodiment of a wireless communication scenario in an embodiment of the present application;

9 is a schematic diagram of an embodiment of an uplink signal processing process in the embodiment of the present application;

10 is a schematic diagram of uplink simulation in the embodiment of the present application;

11 is a schematic diagram of an embodiment of a method for signal processing in an embodiment of the present application;

FIG. 12 is a schematic diagram of an embodiment of a device for baseband processing in an embodiment of the present application; FIG.

13 is a schematic diagram of another embodiment of a device for baseband processing in an embodiment of the present application;

FIG. 14 is a schematic diagram of another embodiment of a device for baseband processing in an embodiment of the present application.

detailed description

The embodiment of the present invention provides a method, a device, and a base station for signal processing, which can receive uplink signals through all receiving ports of an antenna, thereby improving utilization of uplink performance of the antenna and improving uplink capacity. The details are described below separately.

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present application without creative efforts are within the scope of the present application.

An active antenna system (AAS) or a split-end antenna technology splits both the uplink beam and the downlink beam at the same time on a horizontal or vertical plane, and is configured as different logical cells, and multiple cells are in the same frequency to form a fan. The area splitting, the code resources and the power resources are multiplied, which can bring about an increase in the average throughput rate of the uplink cell and the downlink cell, thereby obtaining the capacity gain simultaneously in the uplink and the downlink.

In the current communication network, the user equipment generally selects the optimal serving cell according to the downlink signal, and the uplink direction and the downlink direction diagram need to be consistent, so as to ensure that the uplink and downlink imbalances are not introduced. However, the current uplink mode and the downlink mode are consistent in this processing mode. Although the uplink and downlink imbalances are solved, the utilization of the uplink receiving port is low.

As shown in FIG. 1 , taking the 4-array polarized antenna shown in FIG. 1 as an example, there are 8 receiving ports, but the 4-array polarized antenna shown in FIG. 1 can only form 2 sectors, and each sector is uplinked. Up to 2Rx is used, that is, two receiving ports are received. Therefore, only 8 of the 8 receiving ports are used, and the utilization rate is only 50%.

In order to improve the utilization of the uplink receiving port and improve the uplink capacity, the embodiment of the present application provides a base station as shown in FIG. 2 .

As shown in FIG. 2, the base station provided by the embodiment of the present application includes an array antenna 10, a digital forming module 20, and baseband processing. A base band unite (BBU) 30, an array antenna 10, a digital beam forming (DBF) module 20, and a BBU 30 are communicatively coupled.

The BBU 30 includes a demodulation module 301 and a scheduling module 302.

In FIG. 2, an array antenna of four columns is taken as an example. In fact, the array number of the array antenna shown in FIG. 2 may be other values. An array may include two receiving ports, and only one array antenna is shown in FIG. 1. In fact, one base station may include multiple array antennas, and the principle of each array antenna is similar, so in FIG. Take one as an example for explanation.

The processing procedure of the uplink signal by the base station may include:

The array antenna 10 is configured to receive an uplink signal through m receiving ports of the n receiving ports;

The BBU is configured to obtain the first uplink signal and the second uplink signal, perform demodulation according to the first uplink signal, and perform uplink scheduling according to the second uplink signal.

The first uplink signal is an uplink signal received by the m receiving ports, where m is a positive integer greater than q and not greater than n, where q is the number of downlink beams of the array antenna, The second uplink signal is an uplink signal obtained by digitally shaping the first uplink signal according to a downlink pattern of the array antenna.

The DBF module 20 is configured to perform digital shaping on the first uplink signal according to a downlink direction diagram of the array antenna to obtain the second uplink signal.

The BBU 30 is configured to acquire the second uplink signal from the digital forming module.

Taking the content shown in FIG. 2 as an example, the array antenna 10 has 4 columns, then n is equal to 8, and the array antenna 10 can form 2 downlink beams, then q is equal to 2, therefore, in this example, m is greater than 2, and is not greater than 8. In this example, if m is equal to 8, the eight receiving ports of the array antenna 10 receive the uplink signal, and the 8R indicates the uplink signal received by the eight receiving ports, that is, the first uplink signal is represented by 8R. Eight receiving ports are used to receive uplink signals, which greatly improves the utilization of the uplink receiving port and improves the uplink capacity.

The base station will handle the 8R in two ways. On the one hand, the 8R is sent to the demodulation module 301 of the BBU 30 for demodulation. On the other hand, the 8R is sent to the DBF module 20, and the DBF module 20 digitally shapes the first uplink signal according to the downlink pattern of the array antenna 10 to obtain the second uplink signal.

The first uplink signal is 8R, and the downlink direction diagram can be understood by referring to FIG. 3. After the digital shaping is performed according to the downlink direction diagram shown in FIG. 3, the second uplink signal identified by 2R can be obtained.

The 2R is sent to the scheduling module 302 of the BBU 30 for scheduling.

Demodulation with 8R can correctly demodulate the received uplink signal and perform scheduling with 2R, which ensures the balance with the downlink and avoids strong interference to the cell where the UE is located, thus ensuring resources that can be scheduled.

Compared with the low utilization rate of the uplink port of the array antenna in the prior art, the base station provided by the embodiment of the present application improves the utilization of the uplink performance of the antenna by using the receiving port of the downlink beam to receive the uplink signal, and the base station is used. The signal to be demodulated is separated from the signal used for demodulation, and the signal used for demodulation adopts an uplink signal initially received by the receiving port, and the signal used for scheduling uses the uplink signal after digital shaping according to the downlink pattern, thereby ensuring The cell in which the user equipment is located is not strongly interfered, so that available resources can be scheduled.

In addition, the architecture shown in FIG. 2 is only a base station architecture for implementing the process of the signal processing of the present application. In fact, the base station architecture shown in FIG. 4 and FIG. 5 can implement the foregoing signal processing process in the embodiment of the present application. .

As shown in FIG. 4, the base station further includes a radio frequency module 40, and the DBF module 20 is integrated on the radio frequency module 40. The radio frequency module 40 can be a Radio Radio Unit (RRU) RRU or other radio frequency unit.

As shown in FIG. 5, the DBF module 20 is integrated on the BBU 30. The DBF module 20 may be implemented by software to implement the above-mentioned digital shaping, or may be implemented by a circuit to implement the above-mentioned digital shaping.

As shown in Figure 2 to Figure 5 above, the four-row array antenna performs two-beam splitting. In fact, the four-column array antenna can also perform vertical and horizontal three-beam splitting on the downlink and eight receive ports on the uplink. . As shown in FIG. 6, it is a schematic diagram of a downlink beam split by three beams. Figure 7 is a schematic diagram of an uplink beam.

FIG. 8 is a schematic diagram of wireless communication between a base station and a user equipment (User Equipment, UE).

The communication system shown in FIG. 8 includes a base station 1 and a base station 2, and the base station 1 is configured with three cells, namely, cell 1 (cell1), cell 2 (cell 2), and cell 3 (cell 3), and the base station 2 is configured with one cell. 4 (cell4), UE1 is located in cell 1, UE2 is located in cell 2, UE3 is located in cell 3, and UE4 is located in cell 4. The uplink and downlink directions of the base station 2 are identical. The uplink pattern and the downlink pattern of the base station 1 do not match. Therefore, with reference to FIG. 9, the base station 1 is taken as an example to describe the processing procedure of the signal in the embodiment of the present application.

Taking UE1 as an example, UE1 sends an uplink signal to base station 1, and four array antennas have eight receiving ports, and base station 1 receives uplink signals sent by UE1 through eight receiving ports, and only one signal is drawn for each array in FIG. Line, but in fact no array has two ports to receive the uplink signal, so Figure 9 should not be understood as only 4 signals, as shown in Figure 9, the array antenna receives the original uplink signal according to the uplink beam. Then, the original uplink signal of the 8R is sent to the baseband processing unit for demodulation, and the original uplink signal of the 8R is digitally shaped to obtain the shaped uplink signal, as shown in FIG. It is shaped according to the direction of the downlink beam. Therefore, the uplink and downlink balance is ensured, so that the cell where the UE1 is located is not strongly interfered, so that available resources can be scheduled.

After the schemes of the uplink and downlink directions provided by the embodiments of the present application are different, simulation experiments are performed on the base stations in various situations, and the experimental results are shown in FIG.

As shown in FIG. 10, the simulation object includes a downlink 3 sector base station, a downlink 6 sector base station, and a downlink 9 sector base station. wherein, in FIG. 10, 3sec_2Rx is an existing common base station, and 3sec indicates a downlink 3 sector, 2Rx. It indicates that each sector is uplinked and received twice, and based on the 3sec_2Rx, the uplink gain of the 3sec_2Rx base station is 100%. In Figure 10, 6sec_2*2Rx is a base station composed of splitting antennas, 6sec means downlink 6 sectors, 2*2Rx means 2 sectors and 2 receivers per uplink, and the simulation result in Figure 10 shows the uplink of 6sec_2*2Rx base stations. The gain is 226.26%. In 6sec_8RxNo DLBF of FIG. 10, 6sec indicates downlink 6 sectors, 8Rx indicates uplink cancellation for each sector, and No DLBF indicates that uplink scheduling is not based on downlink shaping, and the uplink gain of 6sec_8RxNo DLBF base station shown in FIG. 10 is 281.47%. 6sec_8Rx DLBF in Figure 10 indicates 6 sectors in the downlink, 8Rx indicates uplink 8 in each sector, and DLBF indicates that the uplink scheduling is based on downlink shaping. Figure 10 shows that the uplink gain of the 6sec_8Rx DLBF base station is 326.66%. In the 9sec_8Rx DLBF of FIG. 10, 9sec represents the downlink 9 sectors, 8Rx represents the uplink 8 reception of each sector, and DLBF indicates that the uplink scheduling is based on the downlink shaping, and the uplink gain of the 9sec_8Rx DLBF base station shown in FIG. 10 is 316.68%. Therefore, it can be seen from the above simulation results that the uplink gain of the 6sec_8Rx DLBF base station is the highest, that is, the digital shaping is performed according to the downward direction pattern, and the gain obtained by the uplink 8 receiving mode is the largest.

In the embodiment of the present application, the uplink and downlink data streams are subjected to different weights according to different directions by using baseband or radio frequency; for example, the downlink adopts the splitting direction pattern to form multiple sectors, and the uplink antenna width of the antenna can be adopted. Beam into Uplink reception is performed to maximize the number of uplink antenna channels, maximize the utilization of antenna channel resources, and ensure downlink performance while improving uplink capacity and coverage. Taking a four-column antenna as an example, the capacity gain is up to 200% and the coverage gain is up to 5 dB.

In addition, the demodulation and scheduling separation scheme uses demodulation to adopt the original original wide beam multi-receive signal, and the scheduling adopts the digital shaping according to the downlink direction diagram. This solution can solve the problem of uplink and downlink imbalance. When the uplink and downlink beams are inconsistent, the uplink can be scheduled.

And the base station described above, the embodiment of the present application further provides a signal processing method, which is applied to a base station, where the base station includes an array antenna and a baseband processing unit BBU, and the array antenna includes n receiving ports, and the n Is a positive integer greater than 3. As shown in FIG. 11, the embodiment of the method for signal processing provided by the embodiment of the present application includes:

501. The BBU obtains a first uplink signal and a second uplink signal. The first uplink signal is an uplink signal received by the m receiving ports, where the m is a positive integer greater than q and not greater than n. q is the number of downlink beams of the array antenna, and the second uplink signal is an uplink signal obtained by digitally shaping the first uplink signal according to a downlink pattern of the array antenna.

502. The BBU performs demodulation according to the first uplink signal.

503. The BBU performs uplink scheduling according to the second uplink signal.

Compared with the low utilization rate of the uplink port of the array antenna in the prior art, the signal processing method provided by the embodiment of the present application improves the utilization of the uplink performance of the antenna by receiving an uplink signal by using a receiving port that is larger than the downlink beam. The signal used for scheduling is separated from the signal used for demodulation, and the signal used for demodulation adopts an uplink signal initially received by the receiving port, and the signal used for scheduling uses an uplink signal that is digitally shaped according to the downlink pattern. It ensures that the cell where the user equipment is located is not strongly interfered, so that available resources can be scheduled.

Optionally, the base station further includes a digital shaping module, where the BBU acquires the second uplink signal, including:

The BBU obtains the second uplink signal from the digital shaping module, and the second uplink signal is used by the digital shaping module to perform digitalization on the first uplink signal according to a downlink direction diagram of the array antenna. Obtained after the type.

Optionally, the acquiring, by the BBU, the second uplink signal may include:

The BBU digitally shapes the first uplink signal according to the downlink direction of the array antenna to obtain the second uplink signal.

The method for signal processing provided by the embodiment of the present application can be understood by referring to the description in the parts of FIG. 1 to FIG. 10, and details are not repeatedly described herein.

Referring to FIG. 12, an embodiment of the present application further provides a device 60 for baseband processing, where the device is applied to a base station, the base station further includes an array antenna, where the array antenna includes n receiving ports, and the n is greater than 3. A positive integer, the device 60 includes:

The obtaining module 601 is configured to obtain the first uplink signal and the second uplink signal, where the first uplink signal is an uplink signal received by the m receiving ports, where the m is a positive integer greater than q and not greater than n The q is the number of the downlink beams of the array antenna, and the second uplink signal is an uplink signal obtained by digitally shaping the first uplink signal according to the downlink direction of the array antenna;

The demodulation module 602 is configured to perform demodulation according to the first uplink signal acquired by the acquiring module 601.

The scheduling module 603 is configured to perform uplink scheduling according to the second uplink signal acquired by the acquiring module 602.

Compared with the utilization of the uplink port of the array antenna in the prior art, the baseband processing provided by the embodiment of the present application is The device receives the uplink signal by using more receiving ports than the downlink beam, thereby improving the utilization of the uplink performance of the antenna, and isolating the signal used for scheduling from the signal for demodulation, and the signal used for demodulation adopts the receiving port. The uplink signal received initially, the signal used for scheduling uses the uplink signal that is digitally shaped according to the downlink direction picture, ensures that the cell where the user equipment is located is not strongly interfered, and thus available resources can be scheduled.

Optionally, referring to FIG. 13, the apparatus 60 for baseband processing provided by the embodiment of the present application further includes a digital shaping module 604;

The obtaining module 601 is specifically configured to acquire the second uplink signal from the digital shaping module 604, where the second uplink signal is performed by the digital shaping module according to a downlink direction of the array antenna. The first uplink signal is obtained after digital shaping.

Optionally, the obtaining module 601 is specifically configured to perform digital shaping on the first uplink signal according to a downlink direction diagram of the array antenna to obtain the second uplink signal.

FIG. 14 is a schematic structural diagram of a device 60 for baseband processing according to an embodiment of the present application. The apparatus 60 is applied to a base station, the base station further comprising an array antenna comprising n receive ports, the n being a positive integer greater than 3, the baseband processing device 60 comprising a processor 610, a memory 650 and an input/ Output device 630, which may include read only memory and random access memory, and provides operational instructions and data to processor 610. A portion of the memory 650 can also include non-volatile random access memory (NVRAM).

In some implementations, the memory 650 stores the following elements, executable modules or data structures, or a subset thereof, or their extended set:

In the embodiment of the present application, the following steps are performed by calling an operation instruction stored in the memory 650 (which can be stored in the operating system),

Obtaining a first uplink signal and a second uplink signal, where the first uplink signal is an uplink signal received through m receiving ports, where m is a positive integer greater than q and not greater than n, where q is The number of the downlink beams of the array antenna, the second uplink signal is an uplink signal obtained by digitally shaping the first uplink signal according to the downlink direction of the array antenna;

Demodulating according to the first uplink signal;

Performing uplink scheduling according to the second uplink signal.

Compared with the prior art, the apparatus for baseband processing provided by the embodiment of the present application receives the uplink signal by using more receiving ports than the downlink beam, thereby improving the utilization of the uplink performance of the antenna, and using the signal for scheduling and for The demodulated signal is isolated, and the signal used for demodulation adopts the uplink signal initially received by the receiving port, and the signal used for scheduling uses the uplink signal that is digitally shaped according to the downlink pattern, thereby ensuring that the cell where the user equipment is located does not Be strongly interfered so that available resources are available for scheduling.

The processor 610 controls the operation of the baseband processing device 60, which may also be referred to as a CPU (Central Processing Unit). Memory 650 can include read only memory and random access memory and provides instructions and data to processor 610. A portion of the memory 650 can also include non-volatile random access memory (NVRAM). The various components of the baseband processing device 60 are coupled together by a bus system 620 in a particular application. The bus system 620 can include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like. However, for clarity of description, various buses are labeled as bus system 620 in the figure.

The method disclosed in the foregoing embodiment of the present application may be applied to the processor 610 or implemented by the processor 610. Processor 610 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 610 or an instruction in a form of software. The processor 610 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or discrete hardware. Component. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 650, and the processor 610 reads the information in the memory 650 and performs the steps of the above method in combination with its hardware.

Optionally, the input/output device 630 is configured to acquire the second uplink signal from the digital shaping module, where the second uplink signal is configured by the digital shaping module according to a downlink direction of the array antenna. The first uplink signal is obtained after digital shaping.

Optionally, the processor 610 is specifically configured to: perform digital shaping on the first uplink signal according to a downlink direction diagram of the array antenna to obtain the second uplink signal.

The apparatus for baseband processing described above with reference to FIG. 14 can be understood by referring to the description of the part BBU of FIG. 1 to FIG. 10, and details are not repeatedly described herein.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: ROM, RAM, disk or CD.

The method, the device and the base station for the signal processing provided by the embodiments of the present application are described in detail. The principles and implementation manners of the present application are described in the specific examples. The description of the above embodiments is only used to help understand the present invention. The method of application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be understood. To limit the application.

Claims

A base station, comprising: an array antenna and a baseband processing unit BBU, the array antenna includes n receiving ports, and the n is a positive integer greater than 3;

The array antenna is configured to receive an uplink signal by using m receiving ports of the n receiving ports;

The BBU is configured to obtain a first uplink signal and a second uplink signal, perform demodulation according to the first uplink signal, and perform uplink scheduling according to the second uplink signal.

The first uplink signal is an uplink signal received by the m receiving ports, where m is a positive integer greater than q and not greater than n, where q is the number of downlink beams of the array antenna, The second uplink signal is an uplink signal obtained by digitally shaping the first uplink signal according to a downlink pattern of the array antenna.
The base station according to claim 1, wherein the base station further comprises a digital shaping module;

The digital shaping module is configured to digitally shape the first uplink signal according to a downlink direction diagram of the array antenna to obtain the second uplink signal;

The BBU is configured to acquire the second uplink signal from the digital forming module.
The base station according to claim 1, wherein

The BBU is configured to perform digital shaping on the first uplink signal according to a downlink direction diagram of the array antenna to obtain the second uplink signal.
The base station according to claim 2, wherein the base station further comprises a radio frequency module, and the digital profiling module is integrated on the radio frequency module.
A method for signal processing, the method is applied to a base station, the base station includes an array antenna and a baseband processing unit BBU, the array antenna includes n receiving ports, and the n is a positive integer greater than 3. The method includes:

The BBU obtains a first uplink signal and a second uplink signal, where the first uplink signal is an uplink signal received through m receiving ports, where m is a positive integer greater than q and not greater than n, q is the number of downlink beams of the array antenna, and the second uplink signal is an uplink signal obtained by digitally shaping the first uplink signal according to a downlink pattern of the array antenna;

Demodulating the BBU according to the first uplink signal;

The BBU performs uplink scheduling according to the second uplink signal.
The method according to claim 5, wherein the base station further comprises a digital shaping module, and the BBU acquires the second uplink signal, including:

The BBU obtains the second uplink signal from the digital shaping module, and the second uplink signal is used by the digital shaping module to perform digitalization on the first uplink signal according to a downlink direction diagram of the array antenna. Obtained after the type.
The method of claim 5, wherein the BBU acquires the second uplink signal, including:

The BBU digitally shapes the first uplink signal according to the downlink direction of the array antenna to obtain the second uplink signal.
A baseband processing apparatus, wherein the apparatus is applied to a base station, the base station further includes an array antenna, the array antenna includes n receiving ports, and the n is a positive integer greater than 3, and the apparatus includes :

An acquiring module, configured to acquire a first uplink signal and a second uplink signal, where the first uplink signal is a pass An uplink signal received by the m receiving ports, where m is a positive integer greater than q and not greater than n, the q is the number of downlink beams of the array antenna, and the second uplink signal is according to the array antenna The uplink signal obtained by digitally shaping the first uplink signal in the downlink direction diagram;

a demodulation module, configured to perform demodulation according to the first uplink signal acquired by the acquiring module;

The scheduling module is configured to perform uplink scheduling according to the second uplink signal acquired by the acquiring module.
The apparatus according to claim 8, wherein said base station further comprises a digital shaping module;

The acquiring module is specifically configured to acquire the second uplink signal from the digital shaping module, where the second uplink signal is performed by the digital shaping module according to a downlink direction diagram of the array antenna An uplink signal is obtained after digital shaping.
The device of claim 8 wherein:

The acquiring module is specifically configured to perform digital shaping on the first uplink signal according to a downlink direction diagram of the array antenna to obtain the second uplink signal.