WO2022033217A1

WO2022033217A1 - Resource reuse method for multi-antenna system, network device, apparatus, and storage medium

Info

Publication number: WO2022033217A1
Application number: PCT/CN2021/103240
Authority: WO
Inventors: 张晓娟; 王希; 孔健
Original assignee: 大唐移动通信设备有限公司
Priority date: 2020-08-14
Filing date: 2021-06-29
Publication date: 2022-02-17
Also published as: CN114080032A

Abstract

Disclosed in the present application are a resource reuse method for a multi-antenna system, a network device, an apparatus, and a storage medium for solving the problems in the prior art of low uplink multi-user pairing performance, large calculation amount, and low processing efficiency of an NR system that cause extremely high costs to operators and device suppliers. In embodiments of the present application, for any target user equipment to be allocated with a resource, dimensionality reduction processing is performed on PUSCH information received by the target user equipment on an antenna array of a network device to obtain a spatial feature of the target user equipment; and when there is no idle frequency domain resource, a target object meeting a pairing condition is selected from a user equipment occupying the frequency domain resource, to reuse the same air interface resource with the target user equipment. Not only paired users belonging to different dimensionality reduction spaces can realize resource reuse, but also the calculation amount of correlation calculation and the costs of the operators and device suppliers are reduced.

Description

Resource multiplexing method, network device, device and storage medium for multi-antenna system

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application filed on August 14, 2020, with the application number of 202010818898.9 and the application title of "Resource Multiplexing Method, Network Equipment, Device and Storage Medium for Multi-Antenna System", which The entire contents of this application are incorporated by reference.

technical field

The present application relates to the 5G NR system (5G New Radio, 5G NR), the technical field of multiple antennas, and in particular, to a resource multiplexing method, network equipment, apparatus and storage medium for a multiple antenna system.

Background technique

The 3rd Generation Partnership Project (3GPP) defines the maximum number of streams for a single user of the NR system, 4 upstream streams and 8 downstream streams; and limited by factors such as terminal radio frequency devices and costs, 5G Commercial terminals currently support 2T4R, that is, a maximum of 2 streams are transmitted upstream and a maximum of 4 streams are transmitted downstream. NR macro base stations generally use large-scale antennas such as 64TR and 32TR, which have a high degree of spatial discrimination, which is conducive to the reuse of the same time-frequency resource transmission between users and improves the utilization of air interface resources. The operator's current requirement for equipment is single-cell uplink support 8-stream transmission, downlink supports 16-stream transmission, and multi-user pairing is the key technology for equipment manufacturers to improve cell capacity.

The maximum bandwidth of the low-frequency cell of the NR system is 100M (megabyte). If all the time-domain data of the 64 antennas are transmitted to the baseband and received and processed, extremely high-speed optical fiber transmission capability and baseband processing capability are required, which will bring great benefits to operators and equipment vendors. extremely high cost. In response to this problem, the current common practice is to use a dimensionality reduction algorithm for users in the uplink to reduce the data of 64 antennas to an effective 16-dimensional space, thereby reducing the amount of data transmitted by optical fibers and the processing capacity of baseband.

The current uplink multi-user pairing algorithm usually refers to the power difference between users, the signal-to-noise ratio of users, the channel correlation between users (using SRS to calculate the channel correlation coefficient or the angle of arrival), etc. Pairing is performed on users whose received power is higher than a certain threshold, close in receiving power, and low in spatial correlation, and reuses the same time-frequency resources to realize multi-user pairing technology.

However, in the prior art, during uplink multi-user pairing, the correlation between users needs to be calculated. If the channel correlation between paired users is high, the demodulation performance after pairing will be affected, and the correlation calculation is usually performed by using the SRS channel. The estimated decomposed eigenvectors do related calculations, which require a large amount of calculation. In addition, the dimensionality reduction space information is not used when users are paired, and the paired users may belong to different dimensionality reduction spaces, so that the users lose part of the antenna signal, resulting in poor reception performance.

SUMMARY OF THE INVENTION

The purpose of this application is to provide a resource multiplexing method, network device, device and storage medium for a multi-antenna system, to solve the following problems: users who need resource multiplexing may belong to different dimensionality reduction spaces, and users may lose some antennas signal, resulting in poor reception performance.

In a first aspect, an embodiment of the present application provides a resource multiplexing method for a multi-antenna system, the method includes:

For any target user equipment to be allocated resources, perform dimensionality reduction processing on the uplink physical shared channel (Physical Uplink Shared Channel, PUSCH) information received by the target user equipment on the antenna array of the network equipment, to obtain the spatial characteristics of the target user equipment;

When there is no idle frequency domain resource, from the user equipment occupying the frequency domain resource, select a target object that satisfies the pairing condition and multiplex the same air interface resource with the target user equipment;

Among them, the pairing conditions include:

According to the spatial characteristics of the target object and the spatial characteristics of the target user equipment, it is determined that the spatial channel correlation between the target object and the target user equipment is lower than a preset correlation threshold.

The above method uses the uplink physical shared channel dimensionality reduction information as a judgment condition for whether users can be paired, simplifies the pairing calculation process, makes the paired users in the same dimensionality reduction space, and avoids the problem that the user loses part of the antenna signal, resulting in poor reception performance. .

In some possible implementations, dimensionality reduction processing is performed on the PUSCH information received by the target user equipment on the antenna array of the network device to obtain the spatial characteristics of the target user equipment, including:

After dimensionality reduction processing of the PUSCH information, the received signal energy of each antenna of the target user equipment in the antenna array is obtained;

For each antenna in the antenna array, if the energy of the received signal of the antenna is greater than or equal to the energy threshold, the spatial flag of the antenna is set as the selected antenna; if the energy of the received signal of the antenna is less than the energy threshold, the spatial flag of the antenna is set to be discarded use an antenna;

The spatial feature consists of the spatial signature of each antenna in the antenna array;

According to the spatial characteristics of the target object and the spatial characteristics of the target user equipment, determine the spatial channel correlation between the target object and the target user equipment, including:

Determine the spatial channel correlation according to the number of the same antenna selected by the target object and the target user equipment;

Wherein, the greater the number of the same selected antennas, the higher the spatial channel correlation.

The above method provides a simple implementation of determining the spatial channel correlation between different user equipments by using spatial features obtained after dimensionality reduction. That is, the spatial channel correlation between different user equipments can be determined based on the same number of selected antennas between different user equipments, and there is no need to perform Sounding Reference Signal (Sounding Reference Signal, SRS) channel estimation decomposition characteristic vector compared to the prior art. Therefore, the implementation manner of determining the spatial channel correlation of the present application is simpler, and the calculation efficiency can be improved.

In some possible implementations, for each antenna in the antenna array, if the received signal energy of the antenna is greater than or equal to the energy threshold, the spatial flag of the antenna is set as the selected antenna; if the received signal energy of the antenna is less than the energy threshold, then After setting the spatial designation of the antenna to be deprecated, the method further includes:

If the space mark is that the number of selected antennas is greater than the maximum number of dimensionality reduction spaces, select the maximum number of antennas from all marked as selected antennas as the final selected antenna according to the received signal energy, and use the remaining unselected antennas as the final selected antennas. The optional antenna is reset to the deprecated antenna.

In the above method, when it is necessary to reduce the dimension of the antennas in the antenna array, the most used antenna is the upper limit of the dimension reduction space. Therefore, in order to be suitable for the dimension reduction scene of the channel, updating the antenna logo can better meet the needs of the scene. .

In some possible implementations, 1 bit is used to identify the selected antenna and the discarded antenna, and the flag value of the selected antenna is 1, and the flag value of the discarded antenna is 0, and the same antenna is selected according to the target object and the target user equipment. The number of determine the spatial channel correlation, including:

Carrying out the bitwise AND of the spatial feature of the target object and the spatial feature of the target user equipment to obtain the bit-sum result of each bit;

Accumulate the bits and results of all bits to obtain the spatial channel correlation of the target object and the target user equipment using the same number of antennas.

The above method adopts bits and calculates the spatial channel correlation between the target object and the target user equipment, which greatly reduces the amount of calculation.

In some possible implementations, if the data of all antenna channels in the antenna array needs to be reduced to a specified number of channels, the pairing condition further includes:

It is determined that the target object and the target user equipment are within the specified number of channels.

In some possible implementations, it is determined whether the target object and the target user equipment are within a specified number of channels, including:

Compare the sum of the number of selected antennas of the target object and the number of selected antennas of the target user equipment with the maximum number of dimension reduction spaces;

If the comparison result is that the sum is less than or equal to the maximum number, the target object and the target user equipment are within the specified number of channels;

If the comparison result is that the sum is greater than the maximum number, the target object and the target user equipment are not within the specified number of channels.

The above method enables the paired users to be in a specified number of channels, and solves the problem that the paired users belong to different dimensionality reduction spaces, and the user loses part of the antenna signal and the reception performance deteriorates.

In some possible implementations, the pairing conditions also include:

The number of other user equipments multiplexing the same air interface resource with the target object is less than the preset multiplexing threshold.

The above method ensures that the target object and the target user equipment can reuse the same air interface resources, and the communication quality of the users is guaranteed by limiting the number of users who reuse the same air interface resources.

In a second aspect, an embodiment of the present application provides a network device for configuring an uplink multi-antenna system, where the network device includes: a processor, a memory, and a transceiver;

a memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations;

determining at least one multi-antenna system, wherein each of the multi-antenna systems includes at least one antenna;

For any multi-antenna system including at least one antenna, on any target user equipment to which resources are to be allocated on the multi-antenna system, perform dimensionality reduction on the PUSCH information received by the target user equipment on the antenna array of the network device processing to obtain the spatial feature of the target user equipment;

According to the spatial characteristics of the target object and the spatial characteristics of the target user, the determined spatial channel correlation between the target object and the target user equipment is lower than a preset correlation threshold.

In some possible implementation manners, the dimensionality reduction processing is performed on the PUSCH information received by the target user equipment on the antenna array of the network device to obtain the spatial characteristics of the target user equipment, including:

the received signal energy of each antenna of the target user equipment in the antenna array after the PUSCH information is dimensionally reduced;

For each antenna in the antenna array, if the received signal energy of the antenna is greater than or equal to the energy threshold, the spatial flag of the antenna is set as the selected antenna; if the received signal energy of the antenna is less than the energy threshold , then the spatial flag of the antenna is set as a discarded antenna;

The spatial feature is constituted by the spatial signature of each antenna in the antenna array;

When the processor performs the determining of the spatial channel correlation between the target object and the target user equipment according to the spatial characteristics of the target object and the spatial characteristics of the target user equipment, the method includes:

determining the spatial channel correlation according to the number of the same antennas used by the target object and the target user equipment;

In some possible implementations, for each antenna in the antenna array, if the received signal energy of the antenna is greater than or equal to an energy threshold, the spatial flag of the antenna is set as the selected antenna; If the received signal energy of the antenna is less than the energy threshold, after setting the spatial flag of the antenna as a discarded antenna, the processor is further configured to:

If the number of selected antennas in the space flag is greater than the maximum number of dimensionality reduction spaces, then according to the energy of the received signal, the antenna with the largest number of selected antennas is selected from all the space flags as the selected antennas as the final selected antenna, and the remaining unused antennas are selected. The selected optional antenna is reset to the discarded antenna.

In some possible implementations, one bit is used to identify the selected antenna and the discarded antenna, and the flag value of the selected antenna is 1, and the flag value of the discarded antenna is 0. When determining the spatial channel correlation by using the same number of antennas for the target object and the target user equipment, the method includes:

Carrying out the bitwise AND of the spatial feature of the target object and the spatial feature of the target user equipment, and obtaining that each bit is a bit AND result;

In some possible implementations, if the data of all antenna channels in the antenna array needs to be reduced to a specified number of channels, the configuration conditions of the processor further include:

In some possible implementations, when the processor performs the determining whether the target object and the target user equipment are within the specified number of channels, the process includes:

comparing the number of selected dimension-reduced channels of the target object with the sum of the selected dimension-reduced channel numbers of the target user equipment and the maximum number of dimension-reduced spaces;

In some possible implementations, the pairing conditions further include:

The number of other user equipments that the processor performs multiplexing of the same air interface resource with the target object is less than a preset multiplexing threshold.

In a third aspect, an embodiment of the present application provides an apparatus applied to an uplink multi-antenna system, the apparatus comprising:

A dimensionality reduction unit, configured to perform dimensionality reduction processing on the PUSCH information received by the target user equipment on the antenna array of the network device for any target user equipment to be allocated resources, to obtain the spatial characteristics of the target user equipment;

A resource multiplexing unit, configured to select a target object that satisfies the pairing condition and multiplex the same air interface resource with the target user equipment from the user equipment occupying the frequency domain resource when there is no idle frequency domain resource; Wherein, the pairing conditions include:

In some embodiments, the dimensionality reduction unit obtains the received signal energy of each antenna of the target user equipment in the antenna array after dimensionality reduction processing of the PUSCH information;

The device also includes:

a correlation determination unit, configured to determine the spatial channel correlation according to the number of the same antenna selected by the target object and the target user equipment;

Wherein, the more the same antennas are selected, the higher the spatial channel correlation is.

In some embodiments, the apparatus further includes:

The optimization unit is used to select the antenna with the largest number of the dimension reduction space from all the antennas marked as the selected antenna according to the energy of the received signal as the final selected antenna if the number of the selected antennas marked as selected is greater than the maximum number of the dimension reduction space , to reset the remaining unselected optional antennas to discarded antennas.

In some embodiments, one bit is used to identify the selected antenna and the discarded antenna, and the flag value of the selected antenna is 1, and the flag value of the discarded antenna is 0, and the correlation determination unit, Used for:

The bits and results of all bits are accumulated to obtain the same number of selected antennas of the target object and the target user equipment as the spatial channel correlation.

In some embodiments, if the data of all antenna channels in the antenna array needs to be reduced to a specified number of channels, the configuration conditions further include:

In some embodiments, a dimensionality reduction processing unit, configured to: compare the sum of the number of selected antennas of the target object and the number of selected antennas of the target user equipment with the maximum number of dimensionality reduction spaces;

In some embodiments, the pairing condition further includes: the number of other user equipments multiplexing the same air interface resource with the target object is less than a preset multiplexing threshold.

In a fourth aspect, an embodiment of the present application provides a computer-storable medium on which a computer program is stored, and when the program is executed by a processor, implements the steps of any of the methods described in the first aspect.

In addition, for the technical effects brought by any one of the implementations of the second aspect to the fourth aspect, reference may be made to the technical effects brought by different implementations of the first aspect, which will not be repeated here.

These and other aspects of the present application will be more clearly understood in the description of the following embodiments.

Compared with the prior art solution, the embodiment of the present application can not only realize resource multiplexing for paired users belonging to different dimensionality reduction spaces, but also reduce the calculation amount of correlation calculation and reduce the cost of operators and equipment vendors.

Other features and advantages of the present application will be set forth in the description which follows, and, in part, will be apparent from the description, or may be learned by practice of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description, claims, and drawings.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic diagram of an application scenario of a resource multiplexing method for a multi-antenna system provided by an embodiment of the present application;

FIG. 2 is a schematic flowchart of a resource multiplexing method for a multi-antenna system provided by an embodiment of the present application;

3 is a schematic diagram of determining a target user equipment and a target object space flag value according to an embodiment of the present application;

4 is a schematic diagram of determining spatial characteristics of a target user equipment and a target object according to an embodiment of the present application;

5 is a schematic diagram of determining the correlation between a target user equipment and a target object according to an embodiment of the present application;

6 is a schematic diagram of determining that a target object and a target user equipment are within a specified number of channels according to an embodiment of the present application;

7 is a schematic diagram of determining the number of other user equipments that multiplex the same air interface resources with a target object according to an embodiment of the present application;

FIG. 8 is an overall flowchart of a resource multiplexing method for a multi-antenna system provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a network device of a resource multiplexing method for a multi-antenna system provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of an apparatus of a resource multiplexing method for a multi-antenna system provided by an embodiment of the present application.

detailed description

The term "and/or" in the embodiments of the present application describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and/or B can indicate that A exists alone, A and B exist simultaneously, and B exists alone these three situations. The character "/" generally indicates that the associated objects are an "or" relationship.

In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The inventor of the present application found that the maximum bandwidth of the low-frequency cell of the NR system is 100M. If the time domain data of 64 antennas are all transmitted to the baseband and received and processed, extremely high-speed optical fiber transmission capability and baseband processing capability are required, which will provide operators and Equipment manufacturers bring extremely high costs. The 3GPP protocol defines the maximum number of streams for a single user of the NR system, with 4 upstream streams and 8 downstream streams. However, limited by factors such as terminal radio frequency devices and costs, 5G commercial terminals currently support 2T4R, that is, a maximum of 2 upstream streams. Downstream up to 4 streams. NR macro base stations generally use large-scale antennas such as 64TR and 32TR, which have a high degree of spatial discrimination, which is conducive to multiplexing the same time-frequency resource transmission between users and improves the utilization of air interface resources. Multi-user pairing is a key technology for equipment manufacturers to improve cell capacity. In the uplink multi-user pairing algorithm in the related art, the usual practice is to refer to the power difference between users, the signal-to-noise ratio of users, and the channel correlation between users. Usually, SRS is used to calculate the channel correlation coefficient or the angle of arrival, and the calculation process is cumbersome. , which is computationally intensive.

In view of this, the present application proposes a resource multiplexing method, network device, apparatus and storage medium for a multi-antenna system, so as to solve the above problems.

The inventive concept of the present application is as follows: on the basis of the traditional solution, for any target user equipment to be allocated resources, the dimensionality reduction space information is used to realize user pairing. For example, the uplink physical shared channel PUSCH information received on the antenna array of the network equipment is then subjected to dimensionality reduction processing to obtain the spatial characteristics of the target user equipment; when there are idle frequency domain resources, the frequency domain resources can be directly allocated to the target user equipment ; When there is no idle frequency domain resource, from the user equipment occupying the frequency domain resource, determine the spatial channel correlation between the target user equipment and other user equipment based on the spatial characteristics of the target user equipment, and then select the spatial channel correlation The target objects whose properties are lower than the preset correlation threshold are used to multiplex the same air interface resources with the target user equipment.

The present application provides a simple implementation of determining the spatial channel correlation between different user equipments using spatial features obtained after dimensionality reduction, that is, based on the number of the same selected antennas among different user equipments, the relationship between different user equipments can be determined. Compared with the prior art, there is no need to perform correlation calculation on the SRS estimation decomposition characteristic vector. Therefore, the implementation of determining the spatial channel correlation of the present application is simpler and can improve calculation efficiency.

In addition, in this application, the inventor has further researched and found that; in the related art, the dimensionality reduction space information is not used when users are paired, and the paired users may belong to different dimensionality reduction spaces, so that the users lose part of the antenna signal, resulting in poor reception performance, Based on this, in this application, when it is necessary to reduce the dimension of the antennas in the antenna array, the most used antenna is the upper limit of the dimension reduction space. Therefore, in order to suit the dimensionality reduction scenario of the channel, it is more suitable to update the antenna flag to meet the The requirements of this scenario; the present application enables paired users to be in a specified number of channels, and solves the problem that the paired users belong to different dimensionality reduction spaces, and the user loses part of the antenna signal and the reception performance deteriorates.

Besides, in this application, the communication quality of users is also guaranteed by limiting the number of users who reuse the same air interface resource.

The technical solutions provided in the embodiments of the present application can be applied to various systems, especially 5G systems. For example, the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (Evloved Packet System, EPS), a 5G system (5GS), and the like.

The user equipment involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to the user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may be different. For example, in the 5G system, the terminal device may be called user equipment (User Equipment, UE). Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a radio access network (Radio Access Network, RAN). "telephone) and computers with mobile terminal equipment, eg portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (Personal Digital Assistants), PDA) and other devices. Wireless terminal equipment may also be referred to as system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in the embodiments of the present application.

The network device involved in the embodiments of the present application may be a base station, and the base station may include a plurality of cells providing services for the terminal. Depending on the specific application, the base station may also be called an access point, or may be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet. Protocol (IP) communication network. The network devices may also coordinate attribute management for the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a Global System for Mobile Communications (GSM) or a Code Division Multiple Access (Code Division Multiple Access, CDMA). ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present application. In some network structures, a network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

Among them, one or more antennas can be used between the network device and the terminal device to perform multiple input multiple output (Multi Input Multi Output, MIMO) transmission, and MIMO transmission can be single user MIMO (Single User MIMO, SU-MIMO) or multiple User MIMO (Multiple User MIMO, MU-MIMO). According to the form and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission.

In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of them. Example. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The resource multiplexing method of the multi-antenna system in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , it is a schematic diagram of an application scenario of the resource multiplexing method for a multi-antenna system provided by an embodiment of the present application. In this application scenario, 101 is a base station, 102-104 are terminal equipment, and any terminal equipment can be used as a target user equipment that needs to allocate resources.

For resource multiplexing in a multi-antenna system, multiple users can simultaneously multiplex the same air interface resource. Regarding how multiple users multiplex the same air interface resource, the processing method is the same. In order to be able to find a good balance between resource multiplexing and user communication quality, in this embodiment of the present application, at most n users are multiplexed on each physical resource block, and the number of n can be set according to actual service requirements. This embodiment of the present application does not limit this. Hereinafter, the same physical resource block multiplexing at most two users will be used as an example for illustration, but those skilled in the art should understand that the embodiment of the present application does not limit multiplexing of at most two users.

As shown in FIG. 2 , it is a schematic flowchart of a resource multiplexing method for a multi-antenna system provided by an embodiment of the present application, wherein the target user equipment can transmit PUSCH information to the network equipment through the uplink. The network device then performs the following steps:

Step 201: Perform dimensionality reduction processing on the uplink physical shared channel information received by the target user equipment on the antenna array of the network device to obtain the spatial characteristics of the target user equipment;

Step 202: when there is an idle frequency domain resource, allocate the frequency domain resource to the target user equipment;

Step 203: when there is no idle frequency domain resource, from the user equipment occupying the frequency domain resource, select a target object that satisfies the pairing condition and multiplex the same air interface resource with the target user equipment;

Wherein, the pairing conditions include at least one or a combination of the following:

Pairing condition 1: The spatial channel correlation between the target object and the target user equipment is higher than a preset correlation threshold.

Assuming that the user equipment occupying frequency domain resources is a candidate user equipment, the target object needs to be selected from the candidate user equipment, and for each candidate user equipment, the spatial channel correlation between the candidate user equipment and the target user equipment can be calculated based on the following method Sex: As shown in Figure 3, it includes the following steps:

After performing dimension reduction processing on the PUSCH information of each antenna in the antenna array in step 201, in step 301: obtaining the received signal energy of each antenna;

In step 302: determine whether the received signal energy of each antenna is greater than the energy threshold, if it is greater than or equal to the energy threshold, enter step 303; if it is less than the energy threshold, enter step 304;

In step 303: when the received signal energy of the antenna is greater than or equal to the energy threshold, set the spatial flag of the antenna as the selected antenna;

In step 304: when the energy of the received signal of the antenna is less than the energy threshold, the spatial flag of the antenna is set as a discarded antenna;

In step 305: determine whether the total number of selected antennas is less than the maximum number of dimension reduction spaces, if it is less than the maximum number of dimension reduction spaces, then go to step 306; if it is greater than the maximum number of dimension reduction spaces, then go to step 307 ;

In step 306: set all selected antennas as final selected antennas;

In step 307: according to the energy size, the selected antenna with the maximum number of dimensionality reduction space is selected to go to step 306, and the redundant antenna goes to step 304 (ie, it is reset to a discarded antenna);

In step 308 : finally the selected antenna and the signs of the discarded antenna form the spatial feature, and the spatial channel correlation between the two is obtained from the spatial feature of the target user equipment and the spatial feature of the candidate user equipment.

In the above steps, in order to be suitable for the scenario of channel dimension reduction, updating the flag of the antenna can better meet the requirements of the scenario.

In one embodiment, as shown in FIG. 4 , in order to simplify the calculation and improve the processing efficiency of user pairing, one bit can be used to identify the final selected antenna and the discarded antenna. The flag value of the used antenna is 0, and the spatial feature is composed of binary 01 in the spatial flag of each antenna in the antenna array.

In one embodiment, as shown in FIG. 5 , a schematic flowchart of the spatial channel correlation between the target object and the target user equipment determined for the spatial feature includes the following steps;

Step 501: Obtain the spatial feature of the target object;

Step 502: Obtain the spatial feature of the target user equipment;

Step 503: perform a bitwise AND operation on the spatial feature of the target object and the spatial feature of the target user equipment;

Step 504: Accumulate the bit and the result to obtain an accumulated value. That is, the number of the same selected antennas of the target object and the target user equipment is used as the spatial channel correlation;

Step 505: determine whether the accumulated value is less than the preset correlation threshold, if it is less than the preset correlation threshold, then go to step 506, if it is greater than the preset correlation threshold, go to step 507;

Step 506: the accumulated value is less than the preset correlation threshold, indicating that the target object and the target user equipment use a small number of the same antennas, the spatial correlation between the target object and the target user equipment is low, and can be paired;

Step 507 : the accumulated value is greater than or equal to the preset correlation threshold, indicating that the target object and the target user equipment use a large number of the same antennas, the target object and the target user equipment have high spatial correlation and cannot be paired.

Assuming that each physical resource block (physical Resource Block, PRB) is multiplexed with at most 2 users, dimensionality reduction processing is performed according to the PUSCH information received by the user on the antenna array of the network device, and the Dimension reduction information, set the space flag whose threshold is greater than or equal to the threshold energy threshold after dimension reduction to 1, and set the space flag less than the energy threshold to 0. If the total number of selected antennas set to 1 exceeds the maximum number of the dimension reduction space, the received signal energy will be calculated according to the received signal energy. The size of , select the antenna with the largest number of dimension reduction space, reset the other space flags to 0, and send the calculation result to the pairing unit.

In one embodiment, it is assumed that the spatial flag of the target object is 11 (binary), the spatial flag of the target user equipment is 01, and the energy threshold is 2; then the number of the same antennas used by the target object and the target user equipment is 11 and 01 bitwise The result obtained from the bit sum is 01, and the accumulated value is (0+1)=1 as the spatial channel correlation. Since the spatial channel correlation is less than the preset correlation threshold of 2, the spatial channel correlation between the target object and the target user equipment is low. , you can consider pairing.

Pairing condition 2: It is determined that the target object and the target user equipment are within a specified number of channels. That is, it is ensured that the target user equipment and the target object are in the same feature control as much as possible, so as to improve the communication quality.

In one embodiment, as shown in FIG. 6, determining whether the target object and the target user equipment are within a specified number of channels may be implemented as the following steps:

In step 601: obtain the number of selected antennas of the target object;

In step 602: obtaining the number of selected antennas of the target user equipment;

The execution order of step 601 and step 602 is not limited, that is, step 601 can be executed first, then step 602, or step 602 can be executed first, then step 601, or step 601 and step 602 can be executed simultaneously.

In step 603: obtaining the sum of the number of selected antennas according to the number of selected antennas of the target object and the number of selected antennas of the target user equipment;

In step 604: determine whether the sum of the number of selected antennas is less than the maximum number of the dimension reduction space; if the sum of the number of antennas is less than the maximum number of the dimension reduction space, then go to step 606; if the sum of the number of antennas is greater than the dimension reduction space The maximum number, then go to step 605;

In step 605: it is determined that the target object and the target user equipment are not within the specified number of channels;

In step 606: it is determined that the target object and the target user equipment are within a specified number of channels.

For example, assuming that the spatial flag of the target object is 11 (binary), the spatial flag of the target user equipment is 01, and the maximum number of dimensionality reduction spaces is 3; the spatial flags of the target object and the target user equipment are accumulated to obtain the accumulated The result is 3, which is less than or equal to the maximum number of dimensionality reduction spaces, and the target object and the target user equipment are within the specified number of channels.

Pairing condition 3: It is determined that the number of other user equipments to which the target object multiplexes the same air interface resource is less than the preset multiplexing threshold.

That is, after the target object is selected, if the user equipment data currently multiplexing the same air interface resource with the target object has reached the preset multiplexing threshold, the target user equipment cannot be paired with the target object, that is, the pairing fails. After the pairing with the target object fails, the target user equipment can continue to search for the next target object. As long as there is a target object and the target user equipment that satisfies the aforementioned three pairing conditions, the pairing is successful.

In one embodiment, as shown in FIG. 7 , determining whether the number of other user equipments multiplexing the same air interface resource with the target object is less than a preset multiplexing threshold may be implemented as the following steps:

In step 701: obtain the number of other user equipments multiplexing the same air interface resources with the target object;

In step 702: determine whether the number of other user equipments multiplexing the same air interface resources with the target object is less than the preset multiplexing threshold; if the number of other user equipments multiplexing the same air interface resources with the target object is less than the preset multiplexing threshold, Then go to step 703; if the number of other user equipments that multiplex the same air interface resource with the target object is greater than the preset multiplexing threshold, go to step 703;

In step 703: it is determined that the number of other user equipments multiplexing the same air interface resource with the target object is less than a preset multiplexing threshold;

In step 704: it is determined that the number of other user equipments multiplexing the same air interface resource with the target object is greater than or equal to a preset multiplexing threshold.

In one embodiment, assuming that the number of target objects is 1, the number of other devices is 2, the preset multiplexing threshold is 3, and the number 2 of other devices is less than the preset multiplexing threshold 3, the target object and the target user equipment can be pair.

In order to facilitate further understanding of the technical solution provided by the present application, the overall flow of the solution will be described below.

In an embodiment, as shown in FIG. 8 , an overall flowchart of a method for resource multiplexing in a multi-antenna system provided by an embodiment of the present application:

In step 801, a set of next candidate users of the multi-antenna system is generated;

In step 802, dimensionality reduction processing is performed on each target user equipment in the set of candidate users to obtain spatial features of each target user equipment.

During implementation, the set of candidate users may not be used, but after the allocation of frequency domain resources is completed, each time a user equipment needs transmission resources, the user equipment is used as the target user equipment and the method provided by the embodiment of the present application is executed to obtain the target user equipment. Realize resource reuse; during implementation, different implementations can be selected according to actual situations such as product architecture.

In step 803, resource allocation is performed to the target user equipment in the set of candidate users according to the user priority;

In step 804, for each target user equipment, when allocating resources to it, determine whether the frequency domain resources are remaining, if there is remaining, go to step 813; if there is no remaining, go to step 805;

In step 805, a user who occupies frequency domain resources is selected as the first target object;

In step 806, perform a bit AND operation on the spatial features of the target object and the target user equipment, and accumulate the result after the bit AND;

In step 807, if the accumulated value is less than the preset correlation threshold, proceed to step 808; if the accumulated value is greater than or equal to the preset correlation threshold, enter step 811;

In step 808, the number of selected antennas of the target object and the target user equipment is accumulated;

In step 809, determine the accumulated value of the number of selected antennas, if the accumulated value is less than the maximum number of dimension reduction spaces, then proceed to step 810; if the accumulated value is greater than the maximum number of dimension reduction spaces, then enter step 811;

In step 810, determine whether the number of other user equipments currently multiplexing the same air interface resource with the target object is less than the preset multiplexing threshold, if the number of other user equipments is less than the preset multiplexing threshold, then enter step 813; if the number of other user equipments is less than the preset multiplexing threshold is not less than the preset multiplexing threshold, then enter step 811;

In step 811, it is judged whether the target object has been traversed, and if the traversal is completed, go to step 814; if not, go to step 812;

In step 812; find the next target object, and repeat the above steps;

In step 813, the target user equipment resource allocation is successful, that is, the target object and the target user equipment complete user pairing;

In step 814, it is judged whether all users have completed the scheduling, if completed, the process ends; if not, the above steps are repeated;

In step 815, resource multiplexing is completed, and the process ends.

Based on the same inventive concept, an embodiment of the present application also provides a network device. The network device is described below with reference to FIG. 9 . The network device shown in FIG. 9 is only an example, and should not impose any limitations on the functions and scope of use of the embodiments of the present application. The network device includes a processor 900, a memory 901 and a transceiver 902;

The processor 900 is responsible for managing the bus architecture and general processing, and the memory 901 may store data used by the processor 900 in performing operations. The transceiver 902 is used to receive and transmit data under the control of the processor 900 .

The bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 900 and various circuits of memory represented by memory 901 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 901 may store data used by the processor 900 in performing operations.

The processes disclosed in the embodiments of the present application may be applied to the processor 900 or implemented by the processor 900 . In the implementation process, each step of the signal processing flow can be completed by hardware integrated logic circuits in the processor 900 or instructions in the form of software. The processor 900 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the embodiments of the present application. The disclosed methods, steps, and logical block diagrams of . A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software units in the processor. The software unit may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 901, and the processor 900 reads the information in the memory 901, and completes the steps of the signal processing flow in combination with its hardware.

Specifically, the processor 900 is configured to read the program in the memory 901 and execute:

determining at least one multi-antenna system, wherein each multi-antenna system includes at least one antenna;

For any multi-antenna system including at least one antenna, on any target user equipment to which resources are to be allocated on the multi-antenna system, perform dimension reduction processing on the PUSCH information received by the target user equipment on the antenna array of the network device to obtain the target Spatial characteristics of user equipment;

Optionally, the processor 900 is further configured to: obtain the received signal energy of each antenna of the target user equipment in the antenna array after dimensionality reduction processing;

When the processor determines the spatial channel correlation between the target object and the target user equipment according to the spatial characteristics of the target object and the spatial characteristics of the target user equipment, it includes:

Among them, the greater the number of the same selected antennas, the higher the spatial channel correlation.

Optionally, for each antenna in the antenna array, if the received signal energy of the antenna is greater than or equal to the energy threshold, set the spatial flag of the antenna as the selected antenna; if the received signal energy of the antenna is less than the energy threshold, set the antenna With the space flag set to deprecated antennas, the processor is also used to:

If the number of selected antennas is greater than the maximum number of dimension reduction spaces as the space mark, according to the minimum received signal energy, the antenna with the largest number of space marks is selected as the final selected antenna from all the space marks as selected antennas, and the remaining unused antennas are selected. The selected optional antenna is reset to the discarded antenna.

Optionally, use 1 bit to identify the selected antenna and the discarded antenna, and the flag value of the selected antenna is 1, and the flag value of the discarded antenna is 0, and the processor selects the same number of antennas according to the target object and the target user equipment. When determining spatial channel correlation, the processor is also used to:

Carry out the bitwise AND of the spatial feature of the target object and the spatial feature of the target user equipment to obtain the bit-sum result of each bit;

The bits and results of all bits are accumulated to obtain the number of the same antennas selected by the target object and the target user equipment as the spatial channel correlation.

Optionally, if the data of all antenna channels in the antenna array needs to be reduced to a specified number of channels, the configuration conditions of the processor also include:

Optionally, when the processor performs determining whether the target object and the target user equipment are within a specified number of channels, the processor is further configured to:

Compare the sum of the selected dimension-reduced channel number of the target object and the target user equipment's selected dimension-reduced channel number and the maximum number of dimension-reduced spaces;

Optionally, the number of other user equipments that the processor performs multiplexing of the same air interface resource with the target object is less than a preset multiplexing threshold.

It should be noted here that the above-mentioned network device provided by the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. The same parts and beneficial effects will be described in detail.

It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The general description of the software and hardware implementation forms in the above embodiments can be supplemented by combining the inventive solution. For example, as shown in FIG. include:

A dimensionality reduction unit 1001, configured to perform dimensionality reduction processing on the PUSCH information received by the target user equipment on the antenna array of the network device for any target user equipment to be allocated resources, to obtain the spatial characteristics of the target user equipment;

A resource multiplexing unit 1002, configured to select a target object that satisfies the pairing condition and multiplex the same air interface resource with the target user equipment from the user equipments occupying the frequency domain resources when there is no idle frequency domain resource; wherein, the pairing Conditions include:

The spatial channel correlation between the target object and the target user equipment is determined to be lower than a preset correlation threshold by using the spatial characteristics of the target object and the spatial characteristics of the target user equipment.

In some embodiments, a dimensionality reduction unit, configured to obtain the received signal energy of each antenna of the target user equipment in the antenna array after dimensionality reduction processing of the PUSCH information;

The device also includes:

Among them, the higher the number of the same antennas selected, the higher the spatial channel correlation.

In some embodiments, the apparatus further includes:

The optimization unit is used to select the antenna with the largest number of dimensionality reduction spaces from all the antennas marked as the selected antennas as the final selected antenna if the number of antennas marked as selected is greater than the maximum number of dimensionality reduction spaces, according to the minimum received signal energy, Resets the remaining unselected optional antennas to obsolete antennas.

In some embodiments, 1 bit is used to identify the selected antenna and the discarded antenna, and the flag value of the selected antenna is 1, the flag value of the discarded antenna is 0, and the correlation determination unit is used for:

Carry out the bitwise AND of the spatial feature of the target object and the spatial feature of the target user equipment, and obtain each bit as a bit AND result;

It should be noted here that the above-mentioned device provided by the embodiment of the present application can realize all the method steps realized by the above-mentioned method embodiment, and can achieve the same technical effect, and the same as the method embodiment in this embodiment is not repeated here. The parts and beneficial effects will be described in detail.

In this embodiment of the present application, the processor-readable storage medium may be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), Optical memory (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD)), and the like. The storable medium has a computer program stored thereon, and when the program is executed by a processor, implements the steps of the above method.

The present application is described above with reference to block diagrams and/or flowchart illustrations illustrating methods, apparatus (systems) and/or computer program products according to embodiments of the present application. It will be understood that a block of the block diagrams and/or flowchart illustrations, and combinations of blocks of the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a general purpose computer, a processor of a special purpose computer and/or other programmable data processing apparatus to produce a machine such that the instructions executed via the computer processor and/or other programmable data processing apparatus create a Methods of implementing the functions/acts specified in the block diagrams and/or flowchart blocks.

Accordingly, the present application may also be implemented in hardware and/or software (including firmware, resident software, microcode, etc.). Still further, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by an instruction execution system or Used in conjunction with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium can be any medium that can contain, store, communicate, transmit, or transmit a program for use by, or in connection with, an instruction execution system, apparatus, or device. device or equipment use.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

A resource multiplexing method applied to a multi-antenna system, characterized in that the method comprises:

For any target user equipment to be allocated resources, perform dimension reduction processing on the uplink physical shared channel PUSCH information received by the target user equipment on the antenna array of the network device, to obtain the spatial characteristics of the target user equipment;

When there is no idle frequency domain resource, from the user equipment occupying the frequency domain resource, select a target object that satisfies the pairing condition and multiplex the same air interface resource with the target user equipment;

Wherein, the pairing conditions include:

According to the spatial characteristics of the target object and the spatial characteristics of the target user equipment, it is determined that the spatial channel correlation between the target object and the target user equipment is lower than a preset correlation threshold.
The method according to claim 1, wherein the performing dimension reduction processing on the PUSCH information received by the target user equipment on the antenna array of the network device to obtain the spatial characteristics of the target user equipment, comprising:

After dimensionality reduction processing of the PUSCH information, the received signal energy of each antenna of the target user equipment in the antenna array is obtained;

For each antenna in the antenna array, if the received signal energy of the antenna is greater than or equal to the energy threshold, the spatial flag of the antenna is set as the selected antenna; if the received signal energy of the antenna is less than the energy threshold , then the spatial flag of the antenna is set as a discarded antenna;

The spatial feature is constituted by the spatial signature of each antenna in the antenna array;

According to the spatial characteristics of the target object and the spatial characteristics of the target user equipment, determining the spatial channel correlation between the target object and the target user equipment includes:

determining the spatial channel correlation according to the number of the same antennas used by the target object and the target user equipment;

Wherein, the greater the number of the same selected antennas, the higher the spatial channel correlation.
The method according to claim 2, wherein, for each antenna in the antenna array, if the energy of the received signal of the antenna is greater than or equal to an energy threshold, the spatial flag of the antenna is set as the selected antenna If the received signal energy of the antenna is less than the energy threshold, after setting the spatial sign of the antenna as a discarded antenna, the method further includes:

If the number of selected antennas in the space flag is greater than the maximum number of dimensionality reduction spaces, then according to the energy of the received signal, the antenna with the largest number of selected antennas is selected from all the space flags as the selected antennas as the final selected antenna, and the remaining unused antennas are selected. The selected optional antenna is reset to the discarded antenna.
The method according to claim 2 or 3, wherein one bit is used to identify the selected antenna and the discarded antenna, and the flag value of the selected antenna is 1, and the flag value of the discarded antenna is 1 0. Determine the spatial channel correlation according to the number of the same antennas used by the target object and the target user equipment, including:

Carrying out the bitwise AND of the spatial feature of the target object and the spatial feature of the target user equipment to obtain the bit-sum result of each bit;

Accumulate the bits and results of all bits to obtain the spatial channel correlation of the target object and the target user equipment using the same number of antennas.
The method according to claim 2, wherein if the data of all antenna channels in the antenna array needs to be reduced to a specified number of channels, the pairing condition further comprises:

It is determined that the target object and the target user equipment are within the specified number of channels.
The method according to claim 5, wherein determining whether the target object and the target user equipment are within the specified number of channels comprises:

comparing the sum of the number of selected antennas of the target object and the number of selected antennas of the target user equipment with the maximum number of dimensionality reduction spaces;

If the comparison result is that the sum is less than or equal to the maximum number, the target object and the target user equipment are within the specified number of channels;

If the comparison result is that the sum is greater than the maximum number, the target object and the target user equipment are not within the specified number of channels.
The method according to any one of claims 1-3 or 5-6, wherein the pairing condition further comprises:

The number of other user equipments multiplexing the same air interface resource with the target object is less than the preset multiplexing threshold.
A network device for configuring an uplink multi-antenna system, characterized in that the network device includes: a processor, a memory, and a transceiver;

a memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations;

determining at least one multi-antenna system, wherein each of the multi-antenna systems includes at least one antenna;

For any multi-antenna system including at least one antenna, any target user equipment to which resources are to be allocated on the multi-antenna system, for the uplink physical shared channel PUSCH received by the target user equipment on the antenna array of the network device performing dimensionality reduction processing on the information to obtain the spatial features of the target user equipment;

When there is no idle frequency domain resource, from the user equipment occupying the frequency domain resource, select a target object that satisfies the pairing condition and multiplex the same air interface resource with the target user equipment;

According to the spatial characteristics of the target object and the spatial characteristics of the target user, the determined spatial channel correlation between the target object and the target user equipment is lower than a preset correlation threshold.
The network device according to claim 8, wherein the dimensionality reduction processing is performed on the PUSCH information received by the target user equipment on the antenna array of the network device to obtain the spatial characteristics of the target user equipment, comprising:

the received signal energy of each antenna of the target user equipment in the antenna array after the PUSCH information is dimensionally reduced;

For each antenna in the antenna array, if the received signal energy of the antenna is greater than or equal to the energy threshold, set the spatial flag of the antenna as the selected antenna;

If the energy of the received signal of the antenna is less than the energy threshold, set the spatial flag of the antenna as a discarded antenna;

The spatial feature is constituted by the spatial signature of each antenna in the antenna array;

When the processor performs the determining of the spatial channel correlation between the target object and the target user equipment according to the spatial characteristics of the target object and the spatial characteristics of the target user equipment, the method includes:

determining the spatial channel correlation according to the number of the same antennas used by the target object and the target user equipment;

Wherein, the greater the number of the same selected antennas, the higher the spatial channel correlation.
The network device according to claim 9, wherein, for each antenna in the antenna array, if the received signal energy of the antenna is greater than or equal to an energy threshold, the spatial flag of the antenna is set to be selected Antenna; if the received signal energy of the antenna is less than the energy threshold, after setting the spatial flag of the antenna as a discarded antenna, the processor is further configured to:

If the number of selected antennas in the space flag is greater than the maximum number of dimensionality reduction spaces, then according to the energy of the received signal, the antenna with the largest number of selected antennas is selected from all the space flags as the selected antennas as the final selected antenna, and the remaining unused antennas are selected. The selected optional antenna is reset to the discarded antenna.
The network device according to claim 9 or 10, wherein one bit is used to identify the selected antenna and the discarded antenna, and the flag value of the selected antenna is 1, and the flag value of the discarded antenna is 1. is 0, and the spatial channel correlation is determined according to the number of the same antenna selected by the target object and the target user equipment, including:

Carrying out the bitwise AND of the spatial feature of the target object and the spatial feature of the target user equipment, and obtaining that each bit is a bit AND result;

Accumulate the bits and results of all bits to obtain the spatial channel correlation of the target object and the target user equipment using the same number of antennas.
The network device according to claim 9, wherein if the data of all antenna channels in the antenna array needs to be reduced to a specified number of channels, the pairing condition further comprises:

It is determined that the target object and the target user equipment are within the specified number of channels.
The network device according to claim 12, wherein determining whether the target object and the target user equipment are within the specified number of channels comprises:

comparing the number of selected dimension-reduced channels of the target object with the sum of the selected dimension-reduced channel numbers of the target user equipment and the maximum number of dimension-reduced spaces;

If the comparison result is that the sum is less than or equal to the maximum number, then the target object and the target user equipment are within the specified number of channels;

If the comparison result is that the sum is greater than the maximum number, the target object and the target user equipment are not within the specified number of channels.
The network device according to any one of claims 8-10 or 12-13, wherein the pairing condition further comprises:

The number of other user equipments multiplexing the same air interface resource with the target object is less than the preset multiplexing threshold.
A device applied to an uplink multi-antenna system, characterized in that the device comprises:

The dimensionality reduction unit is configured to perform dimensionality reduction processing on the uplink physical shared channel PUSCH information received by the target user equipment on the antenna array of the network device for any target user equipment to be allocated resources, and obtain the target user equipment's PUSCH information. spatial characteristics;

A resource multiplexing unit, configured to select a target object that satisfies the pairing condition and multiplex the same air interface resource with the target user equipment from the user equipment occupying the frequency domain resource when there is no idle frequency domain resource; Wherein, the pairing conditions include:

Using the spatial feature of the target object and the spatial feature of the target user equipment to determine that the spatial channel correlation between the target object and the target user equipment is lower than a preset correlation threshold.
A computer-storable medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.