CN114080032A

CN114080032A - Resource multiplexing method, network equipment, device and storage medium of multi-antenna system

Info

Publication number: CN114080032A
Application number: CN202010818898.9A
Authority: CN
Inventors: 张晓娟; 王希; 孔健
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2022-02-22
Also published as: WO2022033217A1

Abstract

The application discloses a resource multiplexing method, network equipment, a device and a storage medium applied to a multi-antenna system, which are used for solving the problems that in the prior art, an NR system is low in uplink multi-user pairing performance, large in calculation amount and low in processing efficiency, and can bring high cost to operators and equipment manufacturers. The method comprises the steps that for any target user equipment to be allocated with resources, PUSCH information received by the target user equipment on an antenna array of network side equipment is subjected to dimensionality reduction processing, and spatial characteristics of the target user equipment are obtained; when no idle frequency domain resource exists, selecting a target object meeting the pairing condition from the user equipment occupying the frequency domain resource and multiplexing the same air interface resource with the target user equipment; the method can realize resource reuse of paired users belonging to different dimension reduction spaces, reduce the calculation amount of correlation calculation and reduce the cost of operators and equipment providers.

Description

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

Technical Field

The present application relates to the field of 5G NR systems (5G New Radio), 5G NR), and multi-antenna technologies, and in particular, to a resource multiplexing method, a network device, an apparatus, and a storage medium for a multi-antenna system.

Background

The third Generation Partnership Project (3rd Generation Partnership Project), 3GPP), defines the maximum number of streams for a single user of an NR system, uplink 4-stream transmission, and downlink 8-stream transmission; and the 5G commercial terminal currently supports 2T4R due to factors such as terminal radio frequency devices and cost. The maximum bandwidth of a low-frequency cell of an NR system is 100M (mega), if time domain data of 64 antennas is completely transmitted to a baseband and received, extremely high-rate optical fiber transmission capability and baseband processing capability are required, and extremely high cost is brought to operators and equipment manufacturers, so that the uplink multi-user pairing performance of the NR system is improved.

Disclosure of Invention

The present application aims to provide a resource multiplexing method, a network device, an apparatus and a storage medium for a multi-antenna system, so as to solve the following problems: users requiring resource multiplexing may belong to different dimension reduction spaces, and the users may lose part of antenna signals, resulting in poor receiving performance.

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

for any target user equipment to be allocated with resources, performing dimensionality reduction on Uplink Physical Shared Channel (PUSCH) information received by the target user equipment on an antenna array of the network equipment to obtain spatial characteristics of the target user equipment;

when no idle frequency domain resource exists, selecting a target object meeting the pairing condition from the user equipment occupying the frequency domain resource and multiplexing the same air interface resource with the target user equipment;

wherein, the pairing conditions comprise:

and determining that the spatial channel correlation between the target object and the target user equipment is lower than a preset correlation threshold value according to the spatial characteristics of the target object and the spatial characteristics of the target user equipment.

According to the method, the uplink physical shared channel dimension reduction information is used as the judgment condition for judging whether the user can be paired, the pairing calculation process is simplified, the paired users are in the same dimension reduction space, and the problem that the receiving performance is poor due to the fact that the user loses part of antenna signals is solved.

In some possible implementation manners, performing dimension reduction processing on PUSCH information received by the target user equipment on an antenna array of a network device to obtain a spatial characteristic of the target user equipment includes:

after the PUSCH information is subjected to dimensionality reduction processing, the received signal energy of the target user equipment at each antenna 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 an energy threshold, setting the space mark of the antenna as a selected antenna; if the energy of the received signal of the antenna is less than the energy threshold, setting the space sign of the antenna as a disuse antenna;

the spatial characteristics are formed by spatial signatures of each antenna in the antenna array;

determining 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, including:

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

wherein, the more the number of the same selected antennas, the higher the spatial channel correlation.

The method provides a simple implementation mode for determining the spatial channel correlation among different user equipment by adopting the spatial characteristics obtained after dimension reduction. That is, spatial channel correlation between different user equipments can be determined based on the number of the same selected antennas between the different user equipments, and compared with the prior art in which correlation calculation is performed without performing Sounding Reference Signal (SRS) channel estimation decomposition characteristic vectors, the implementation of determining spatial channel correlation according to the present application is simpler and more convenient, and can improve calculation efficiency.

In some possible implementations, 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, setting the spatial signature of the antenna as a selected antenna; if the received signal energy of the antenna is less than the energy threshold, the spatial flag of the antenna is set to be after the antenna is abandoned, and the method further comprises the following steps:

and if the space marks are that the number of the selected antennas is larger than the maximum number of the dimension-reduced space, selecting the antennas with the maximum number from all the marked selected antennas as final selected antennas according to the energy of the received signals, and resetting the rest unselected selected antennas as abandoned antennas.

According to the method, when the antennas in the antenna array need to be dimension-reduced, the most used antennas are the upper limit of the dimension-reduced space, so that in order to be suitable for the scene of dimension reduction of the channel, the mark of the antenna is updated to better meet the requirement of the scene.

In some possible implementation manners, identifying a selected antenna and a disused antenna by using 1 bit, where a flag value of the selected antenna is 1 and a flag value of the disused antenna is 0, and determining spatial channel correlation according to the number of the selected same antennas of the target object and the target user equipment includes:

bitwise bit-and-combining the spatial feature of the target object and the spatial feature of the target user equipment to obtain the bit and result of each bit;

and accumulating the bits of all the bits and the result to obtain the number of the selected same antennas of the target object and the target user equipment as the spatial channel correlation.

The method adopts the correlation between the bits and the spatial channels of the calculation target object and the target user equipment, thereby greatly reducing the calculation amount.

In some possible implementations, if it is required to reduce the data of all antenna channels in the antenna array to a specified number of channels, the pairing condition further includes:

determining that the target object is within a specified number of channels with the target user device.

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

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

if the sum of the comparison results is less than or equal to the maximum number, the target object and the target user equipment are in the channels with the specified number;

and if the sum of the comparison results is larger than the maximum number, the target object and the target user equipment are not in the channels with the specified number.

The method enables the paired users to be in the channels with the specified number, and solves the problems that the paired users belong to different dimension reduction spaces, so that the users lose part of antenna signals, and the receiving performance is poor.

In some possible implementations, the pairing condition further includes:

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

The method ensures that the target object and the target user equipment can multiplex the same air interface resource, and ensures the communication quality of the user by limiting the number of the users multiplexing the same air interface resource.

In a second aspect, an embodiment of the present application provides a network device configured with 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 transceiving data under 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 multi-antenna system comprises at least one antenna;

for any multi-antenna system comprising at least one antenna, carrying out dimension reduction processing on PUSCH information received by the target user equipment on an antenna array of network equipment by any target user equipment to be allocated with resources on the multi-antenna system to obtain spatial characteristics of the target user equipment;

the method comprises the steps that when no idle frequency domain resource exists, a target object meeting a pairing condition is selected from user equipment occupying the frequency domain resource, and the same air interface resource is multiplexed with the target user equipment;

and according to the spatial characteristics of the target object and the spatial characteristics of the target user, determining that the spatial channel correlation between the target object and the target user equipment is lower than a preset correlation threshold value.

In some possible implementation manners, the performing dimension reduction processing on the PUSCH information received by the target user equipment on the antenna array of the network equipment to obtain the spatial characteristic of the target user equipment includes:

performing dimensionality reduction processing on the PUSCH information to obtain received signal energy of the target user equipment at each antenna in an antenna array;

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, setting the space mark of the antenna as a selected antenna; if the energy of the received signal of the antenna is smaller than the energy threshold, setting the space mark of the antenna as a disuse antenna;

the processor, when executing the determination of the spatial channel correlation between the target object and the target user equipment according to the spatial feature of the target object and the spatial feature of the target user equipment, includes:

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

In some possible implementations, in the case of each antenna in the antenna array, if the energy of a received signal of the antenna is greater than or equal to an energy threshold, setting a spatial flag of the antenna as a 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 an antenna disuse, the processor is further configured to:

and if the number of the selected antennas in the space marks is larger than the maximum number of the dimension-reduced space, selecting the antennas with the maximum number from all the antennas with the space marks as the final selected antennas according to the energy of the received signals, and resetting the rest unselected selected antennas as the abandoned antennas.

In some possible implementation manners, identifying the selected antenna and the disused antenna by using 1 bit, where a flag value of the selected antenna is 1 and a flag value of the disused antenna is 0, and when determining the spatial channel correlation according to the number of the selected same antennas of the target object and the target user equipment, the processor includes:

bitwise bit-and-combining the spatial feature of the target object and the spatial feature of the target user equipment to obtain bit and result of each bit;

In some possible implementations, if it is required to reduce the data of all antenna channels in the antenna array to a specified number of channels, the configuration condition of the processor further includes:

determining that the target object and the target user equipment are within the specified number of channels.

In some possible implementations, the processor performing the determining whether the target object and the target user device are within the specified number of channels includes:

comparing the sum of the number of the selected dimensionality-reduced channels of the target object and the number of the selected dimensionality-reduced channels of the target user equipment with the maximum number of the dimensionality-reduced space;

if the sum is less than or equal to the maximum number, the target object and the target user equipment are in the channels with the specified number;

and if the sum is larger than the maximum number as a comparison result, the target object and the target user equipment are not in the channels with the specified number.

In some possible implementations, the pairing condition further includes:

and the processor executes that the number of other user equipment which multiplexes 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, where the apparatus includes:

the system comprises a dimension reduction unit, a resource allocation unit and a resource allocation unit, wherein the dimension reduction unit is used for carrying out dimension reduction processing on PUSCH information received by target user equipment on an antenna array of network equipment aiming at any target user equipment to be allocated with resources to obtain spatial characteristics of the target user equipment;

a resource multiplexing unit, configured to select, when there is no idle frequency domain resource, a target object that meets a pairing condition from user equipment that occupies the frequency domain resource, and multiplex the same air interface resource with the target user equipment; wherein the pairing condition includes:

and determining that the spatial channel correlation between the target object and the target user equipment is lower than a preset correlation threshold according to the spatial characteristics of the target object and the spatial characteristics of the target user equipment.

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

the device further comprises:

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

wherein, the more the number of the same antennas is selected, the higher the spatial channel correlation is.

In some embodiments, the apparatus further comprises:

and the optimization unit is used for selecting the antenna with the maximum dimension reduction space number from all the antennas marked as selected antennas as a final selected antenna according to the received signal energy if the number of the antennas marked as selected antennas is greater than the maximum dimension reduction space number, and resetting the rest unselected selected antennas as abandoned antennas.

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

and accumulating the bits of all the bits and the result to obtain the number of the same selected antennas of the target object and the target user equipment as the spatial channel correlation.

In some embodiments, if it is required to reduce the data of all antenna channels in the antenna array to a specified number of channels, the configuration condition further includes:

In some embodiments, a dimension reduction processing unit to: comparing the sum of the number of the selected antennas of the target object and the number of the selected antennas of the target user equipment with the maximum number of the dimension reduction space;

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

In a fourth aspect, embodiments of the present application provide a computer-readable medium on which a computer program is stored, which when executed by a processor, performs the steps of the method according to any one of the first aspect.

In addition, for technical effects brought by any one implementation manner of the second aspect to the fourth aspect, reference may be made to technical effects brought by different implementation manners of the first aspect, and details are not described here.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Compared with the prior art, the method and the device for realizing the resource reuse can enable the paired users belonging to different dimension reduction spaces to realize the resource reuse, reduce the calculation amount of correlation calculation and reduce the cost of operators and equipment providers.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic view of an application scenario of a resource multiplexing method of a multi-antenna system according to an embodiment of the present application;

fig. 2 is a flowchart illustrating a resource multiplexing method of a multi-antenna system according to an embodiment of the present application;

fig. 3 is a schematic diagram of determining a spatial signature value of a target user equipment and a target object according to an embodiment of the present application;

fig. 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;

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

fig. 6 is a schematic diagram illustrating a determination that a target object and a target user equipment are in a specified number of channels according to an embodiment of the present application;

fig. 7 is a schematic diagram illustrating determining the number of other user equipments multiplexing the same air interface resource as a target object according to the embodiment of the present application;

fig. 8 is an overall flowchart of a resource multiplexing method of a multi-antenna system according to an embodiment of the present application;

fig. 9 is a schematic diagram of a network device of a resource multiplexing method of a multi-antenna system according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of an apparatus for a resource multiplexing method of a multi-antenna system according to an embodiment of the present disclosure.

Detailed Description

In the embodiment of the present application, the term "and/or" describes an association relationship of associated objects, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

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, and 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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The inventor of the present application finds that, if the maximum bandwidth of the NR system low-frequency cell is 100M, and all time domain data of 64 antennas are transmitted to the baseband for receiving and processing, extremely high-rate optical fiber transmission capability and baseband processing capability are required, which may bring extremely high cost to operators and equipment manufacturers. The maximum flow number of a single user of an NR system, uplink 4-flow transmission and downlink 8-flow transmission are defined on a 3GPP protocol; and limited by factors such as terminal radio frequency devices and cost, the 5G commercial terminal currently supports 2T4R, i.e., uplink maximum 2-stream transmission and downlink maximum 4-stream transmission. The NR macro base station generally adopts large-scale antennas such as 64TR and 32TR, has high spatial discrimination, is favorable for multiplexing the same time-frequency resource transmission among users, and improves the utilization rate of air interface resources. Multi-user pairing is a key technology for improving cell capacity of equipment manufacturers. In the uplink multi-user pairing algorithm in the related technology, a common method is to refer to power difference between users, signal-to-noise ratio of the users, and channel correlation between the users, and to calculate a channel correlation coefficient or a wave arrival angle by using an SRS, so that the calculation process is complicated and the calculation amount is large.

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

The invention conception of the application is as follows: on the basis of the traditional scheme, aiming at any target user equipment to be allocated with resources, dimension reduction space information is adopted to realize user pairing. If so, performing dimensionality reduction on the uplink physical shared channel (PUSCH) information received on an antenna array of the network equipment to obtain the spatial characteristics of the target user equipment; when the idle frequency domain resources exist, the frequency domain resources can be directly allocated to the target user equipment; when no idle frequency domain resource exists, determining spatial channel correlation between the target user equipment and other user equipment from the user equipment occupying the frequency domain resource based on spatial characteristics of the target user equipment, and then selecting a target object with the spatial channel correlation lower than a preset correlation threshold value to multiplex the same air interface resource with the target user equipment.

The application provides a simple implementation mode for determining the spatial channel correlation among different user equipment by adopting the spatial characteristics obtained after dimension reduction, namely the spatial channel correlation among different user equipment can be determined based on the number of the same selected antennas among different user equipment, and compared with the prior art, the implementation mode for determining the spatial channel correlation is simpler and more convenient, and the calculation efficiency can be improved without performing SRS estimation decomposition characteristic vectors for correlation calculation.

In addition, in the application, the inventor further researches and discovers; in the related art, when a user is paired, dimension reduction space information is not utilized, and the paired user may belong to different dimension reduction spaces, so that the user loses part of antenna signals and the receiving performance is poor; the method and the device have the advantage that the paired users are in the channels with the specified number, and the problems that the paired users belong to different dimension reduction spaces, so that the users lose part of antenna signals, and the receiving performance is poor are solved.

In addition, the communication quality of the users is ensured by limiting the number of the users multiplexing the same air interface resource.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a long term evolution (long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an LTE-a (long term evolution) system, a universal mobile system (universal mobile telecommunications system, UMTS), a Worldwide Interoperability for Mobile Access (WiMAX) system, a New Radio network (NR 5) system, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5GS), and the like.

The user device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (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 this embodiment of the present application.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for providing services to a terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may be an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) System, may be a 5G Base Station (gbb) in a 5G network architecture (next evolution System), may be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico Base Station), and the like, which are not limited in the embodiments of the present application. In some network architectures, a network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

The network device and the terminal device may each use one or more antennas to perform Multiple Input Multiple Output (MIMO) transmission, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of root antenna combinations.

In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

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

Referring to fig. 1, an application scenario diagram of a resource multiplexing method for a multi-antenna system according to an embodiment of the present application is shown. In the application scenario, 101 is a base station, 102 and 104 are terminal devices, and any terminal device can be a target user device that needs to allocate resources.

For resource multiplexing of a multi-antenna system, multiple users can simultaneously multiplex the same air interface resource. The processing mode is the same for how a plurality of users reuse the same air interface resource. In order to find a balance point between resource multiplexing and user communication quality, in the embodiment of the present application, at most n users are multiplexed on each physical resource block, and the number of n may be set according to actual service requirements, which is not limited in the embodiment of the present application. Hereinafter, an example of multiplexing at most 2 users in the same physical resource block will be described, but those skilled in the art should understand that the embodiment of the present application does not limit multiplexing at most 2 users.

As shown in fig. 2, a flowchart of a resource multiplexing method for a multi-antenna system according to an embodiment of the present application is shown, where a target user equipment may transmit PUSCH information to a network device through an uplink. Then, the network device performs the following steps:

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

step 202: when the idle frequency domain resources exist, allocating the frequency domain resources to the target user equipment;

step 203: when no idle frequency domain resource exists, selecting a target object meeting the pairing condition from the user equipment occupying the frequency domain resource and multiplexing the same air interface resource with the target user equipment;

wherein the pairing conditions comprise at least one or a combination of the following:

pairing conditions 1: the spatial channel correlation of the target object and the target user equipment is higher than a preset correlation threshold.

Assuming that the user equipment occupying the frequency domain resources is a candidate user equipment, a 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 may be calculated based on the following method: as shown in fig. 3, the method comprises the following steps:

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

in step 302: judging whether the energy of the received signal of each antenna is greater than an energy threshold, if so, entering a step 303; if the energy is less than the energy threshold, go to step 304;

in step 303: when the energy of the received signal of the antenna is more than or equal to the energy threshold, setting the space mark of the antenna as a selected antenna;

in step 304: when the energy of the received signal of the antenna is less than the energy threshold, setting the space mark of the antenna as a disuse antenna;

in step 305: judging whether the total quantity of the selected antennas is less than the maximum number of the dimension reduction space, if so, entering step 306; if the number is larger than the maximum number of the dimension reduction space, step 307 is executed;

in step 306: setting all selected antennas as final selected antennas;

in step 307: selecting the selected antenna with the maximum number of the dimension reduction space according to the energy size to enter a step 306, and selecting the redundant antenna to enter a step 304 (namely, resetting the selected antenna as the abandoned antenna);

in step 308: and finally, selecting the marks of the antenna and the abandoned antenna to form a spatial characteristic, and obtaining the spatial channel correlation between the spatial characteristic of the target user equipment and the spatial characteristic of the candidate user equipment.

In order to adapt to the scene of the channel dimension reduction, the mark of the antenna is updated, so that the requirement of the scene can be met.

In an embodiment, as shown in fig. 4, to simplify the calculation and improve the processing efficiency of user pairing, 1 bit may be used to identify the finally selected antenna and the abandoned antenna, for example, the flag value of the finally selected antenna is 1, the flag value of the abandoned antenna is 0, and the spatial signature is formed by binary 01 of the spatial signature of each antenna in the antenna array.

In one embodiment, as shown in fig. 5, a 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: acquiring the spatial characteristics of a target object;

step 502: acquiring spatial characteristics of target user equipment;

step 503: carrying out bitwise AND operation on the spatial characteristics of the target object and the spatial characteristics of the target user equipment;

step 504: and accumulating the bit and the result to obtain an accumulated value. The number of the same selected antennas of the target object and the target user equipment is used as the correlation of the spatial channels;

step 505: judging whether the accumulated value is smaller than a preset correlation threshold value, if so, entering a step 506, and if so, entering a step 507;

step 506: the accumulated value is smaller than a preset correlation threshold value, which indicates that the number of the same antennas selected by the target object and the target user equipment is small, the spatial correlation between the target object and the target user equipment is low, and pairing can be performed;

step 507: the accumulated value is larger than or equal to the preset correlation threshold value, which indicates that the number of the same antennas selected by the target object and the target user equipment is large, the spatial correlation between the target object and the target user equipment is high, and pairing cannot be performed.

Assuming that at most 2 users are multiplexed on each Physical Resource Block (PRB), performing dimension reduction processing according to PUSCH information received by the users on an antenna array of network equipment, calculating dimension reduction information of each PRB user on each PRB user, setting a space mark with a threshold larger than or equal to a threshold energy threshold after dimension reduction to be 1 and a space mark with a threshold smaller than the energy threshold to be 0, if the total number of selected antennas of the set 1 exceeds the maximum number of dimension reduction spaces, selecting the selected antennas with the maximum number of dimension reduction spaces according to the size of received signal energy, resetting other space marks to be 0, and sending a calculation result to a pairing unit.

In one embodiment, assume that the spatial signature of the target object is 11 (binary), the spatial signature of the target user equipment is 01, and the energy threshold is 2; the number of the same antennas selected by the target object and the target user equipment is 11, the number of the same antennas selected by the target user equipment is 01, the obtained result is 01, the accumulated value is (0+1) ═ 1 as spatial channel correlation, and since the spatial channel correlation is smaller than the preset correlation threshold 2, the spatial channel correlation between the target object and the target user equipment is low, and pairing can be considered.

Pairing conditions 2: determining that the target object is within a specified number of channels with the target user device. That is, the target user equipment and the target object are ensured to be 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 device are within a specified number of channels may be implemented as the following steps:

in step 601: acquiring the number of selected antennas of a target object;

in step 602: acquiring the number of selected antennas of target user equipment;

the execution sequence of step 601 and step 602 is not limited, that is, step 601 may be executed first and then step 602 is executed, step 602 may be executed first and then step 601 is executed, or step 601 and step 602 may 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: judging whether the sum of the number of the selected antennas is less than the maximum number of the dimension reduction space; if the sum of the number of the antennas is less than the maximum number of the dimension reduction space, go to step 606; if the sum of the number of the antennas is greater than the maximum number of the dimension reduction space, step 605 is performed;

in step 605: determining that the target object and the target user equipment are not in the specified number of channels;

in step 606: determining that the target object is within a specified number of channels with the target user device.

For example, assume that the spatial signature of the target object is 11 (binary), the spatial signature of the target user equipment is 01, and the maximum number of the reduced-dimension spaces is 3; and accumulating the space marks of the target object and the target user equipment to obtain an accumulated result of 3, wherein the accumulated result is less than or equal to the maximum number of the dimensionality reduction space, and the target object and the target user equipment are in channels with the specified number.

Pairing conditions 3: and determining that the number of other user equipment for multiplexing the same air interface resource by the target object is less than a preset multiplexing threshold.

That is, after the target object is selected, if the data of the user equipment currently multiplexing the same air interface resource with the target object reaches 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 next target object can be continuously searched for the target user equipment, and as long as one target object and the target user equipment meet the three pairing conditions, the pairing is successful.

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

in step 701: acquiring the quantity of other user equipment reusing the same air interface resources with the target object;

in step 702: judging whether the number of other user equipment multiplexing the same air interface resources with the target object is less than a preset multiplexing threshold or not; if the number of other user equipments multiplexing the same air interface resource as the target object is less than the preset multiplexing threshold, go to step 703; if the number of other user equipments multiplexing the same air interface resource as the target object is greater than the preset multiplexing threshold, go to step 703;

in step 703: determining that the number of other user equipment multiplexing the same air interface resources with the target object is less than a preset multiplexing threshold;

in step 704: and determining that the number of other user equipment multiplexing the same air interface resources with the target object is greater than or equal to a preset multiplexing threshold.

In one embodiment, it is assumed that the number of target objects is 1, the number of other devices is 2, the preset multiplexing threshold is 3, the number of other devices 2 is less than the preset multiplexing threshold 3, and the target objects and the target user devices may be paired.

In order to further understand the technical solution provided in 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 resource multiplexing method for a multi-antenna system provided in the embodiment of the present application is shown:

in step 801, a next candidate user set for the multi-antenna system is generated;

in step 802, a dimension reduction process is performed on each target user device in the candidate user set to obtain a spatial feature of each target user device.

In implementation, the aggregation of candidate users may not be used, but after the frequency domain resource allocation is completed, every time one user equipment needs to transmit resources, the user equipment is used as a target user equipment and the method provided by the embodiment of the present application is executed to implement resource multiplexing; different implementations can be selected according to actual situations such as product architecture.

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

in step 804, for each target ue, when allocating resources to the target ue, determining whether frequency domain resources are left, if so, entering step 813; if no, go to step 805;

in step 805, a user occupying frequency domain resources is selected as a first target object;

in step 806, performing bit and operation on the spatial characteristics of the target object and the target user equipment and accumulating the bit and result;

in step 807, if the accumulated value is less than the predetermined correlation threshold, go to step 808; if the accumulated value is greater than or equal to the preset correlation threshold, go to step 811;

in step 808, the target object and the number of selected antennas of the target user equipment are accumulated;

in step 809, judging the accumulated value of the number of the selected antennas, and if the accumulated value is less than the maximum number of the dimension reduction space, entering step 810; if the accumulated value is greater than the maximum number of dimension-reduced spaces, go to step 811;

in step 810, it is determined whether the number of other user equipments currently multiplexing the same air interface resource with the target object is smaller than a preset multiplexing threshold, and if the number of other user equipments is smaller than the preset multiplexing threshold, step 813 is performed; if the number of other user equipments is not less than the preset multiplexing threshold, go to step 811;

in step 811, it is determined whether the target object has been traversed, and if so, the process proceeds to step 814; if not, go to step 812;

in step 812; searching a next target object and repeating the steps;

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

in step 814, it is determined whether all users complete scheduling, and if so, the process is ended; if not, repeating the steps;

in step 815, resource reuse is completed, and the process ends.

Based on the same inventive concept, the embodiment of the 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 bring any limitation to the functions and the scope of use of the embodiments of the present application. The network device includes a processor 900, 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 for receiving and transmitting data under the control of the processor 900.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 900, and various circuits, represented by memory 901, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an 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 implementation, the steps of the signal processing flow may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 900. 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, discrete gate or transistor logic, discrete hardware components, or the like that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software elements in a processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known 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 the hardware thereof.

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

for any multi-antenna system comprising at least one antenna, carrying out dimensionality reduction processing on PUSCH information received by the target user equipment on an antenna array of the network equipment by any target user equipment to be allocated with resources on the multi-antenna system to obtain the spatial characteristics of the target user equipment;

the method comprises the steps that when no idle frequency domain resource exists, a target object meeting a pairing condition is selected from user equipment occupying the frequency domain resource to multiplex the same air interface resource with the target user equipment;

Optionally, the processor 900 is further configured to: obtaining the received signal energy of the target user equipment in each antenna in the antenna array after the dimension 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, the processor comprises:

Optionally, 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, setting the spatial flag of the antenna as a 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 the disuse antenna, the processor is further configured to:

and if the number of the selected antennas is larger than the maximum number of the dimension reduction spaces, selecting the antennas with the maximum number of the dimension reduction spaces from all the antennas with the selected space marks as final selected antennas according to the fact that the received signal energy is small, and resetting the rest unselected selected antennas as abandoned antennas.

Optionally, 1 bit is used to identify a selected antenna and a disused antenna, the tag value of the selected antenna is 1, the tag value of the disused antenna is 0, and when the processor determines the spatial channel correlation according to the number of the selected same antennas of the target object and the target user equipment, the processor is further configured to:

bitwise bit-and-combining the spatial characteristics of the target object and the spatial characteristics of the target user equipment to obtain the bit and result of each bit;

Optionally, if it is required to reduce the dimension of data of all antenna channels in the antenna array to a specified number of channels, the configuration condition of the processor further includes:

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

Optionally, the number of other user equipments for executing the air interface resource that is the same as the multiplexing of the target object by the processor is smaller than a preset multiplexing threshold.

It should be noted that, the network device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated herein.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The general description of the software and hardware implementation forms in the above embodiments may be supplemented with the inventive solution, for example, as shown in fig. 10, which is a schematic structural diagram of an apparatus applied to an uplink multi-antenna system in this embodiment of the present application, and the apparatus includes:

a dimension reduction unit 1001, configured to perform dimension reduction processing on PUSCH information received by a target user equipment on an antenna array of a network device, to obtain spatial characteristics of the target user equipment, for any target user equipment to be allocated with a resource;

a resource multiplexing unit 1002, configured to select, when there is no idle frequency domain resource, a target object that meets a pairing condition from user equipment that occupies the frequency domain resource, and multiplex the same air interface resource with the target user equipment; wherein, the pairing conditions comprise:

and determining that the spatial channel correlation between the target object and the target user equipment is lower than a preset correlation threshold value by adopting the spatial characteristics of the target object and the spatial characteristics of the target user equipment.

In some embodiments, the dimension reduction unit is configured to obtain, after performing dimension reduction processing on the PUSCH information, received signal energy of the target user equipment at each antenna in the antenna array;

the device still includes:

the correlation determining unit is used for determining the spatial channel correlation according to the number of the selected same antennas of the target object and the target user equipment;

wherein, the higher the number of the same antennas is selected, the higher the spatial channel correlation is.

In some embodiments, the apparatus further comprises:

and the optimization unit is used for selecting the antenna with the maximum number of the dimension reduction spaces from all the antennas marked as selected as the final selected antenna according to the fact that the received signal energy is small if the number of the antennas marked as selected is larger than the maximum number of the dimension reduction spaces, and resetting the rest unselected selected antennas as abandoned antennas.

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

bitwise bit-and-combining the spatial characteristics of the target object and the spatial characteristics of the target user equipment to obtain bit and result of each bit;

In some embodiments, if it is required to reduce the dimension of the data of all antenna channels in the antenna array to a specified number of channels, the configuration condition further includes:

In some embodiments, the pairing conditions further include: the number of other user equipment multiplexing the same air interface resource with the target object is less than the preset multiplexing threshold.

It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

In embodiments 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 memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, nonvolatile memory (NAND FLASH), Solid State Disks (SSDs)), and the like. The storable medium has stored thereon a computer program which, when executed by a processor, performs the steps of the method described above.

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

Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, 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 or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such 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 intended to include such modifications and variations as well.

Claims

1. A resource multiplexing method applied to a multi-antenna system is characterized in that the method comprises the following steps:

for any target user equipment to be allocated with resources, carrying out dimension reduction processing on uplink physical shared channel (PUSCH) information received by the target user equipment on an antenna array of network equipment to obtain spatial characteristics of the target user equipment;

wherein the pairing condition includes:

2. The method of claim 1, wherein the performing the 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 comprises:

after the PUSCH information is subjected to dimensionality reduction processing, the received signal energy of the target user equipment at each antenna in an antenna array is obtained;

determining spatial channel correlation between the target object and the target user equipment according to the spatial features of the target object and the spatial features of the target user equipment, including:

3. The method of claim 2, 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, setting the spatial signature of the antenna as a selected antenna; if the received signal energy of the antenna is less than the energy threshold, setting the spatial flag of the antenna as a space flag after discarding the antenna, and the method further includes:

4. The method of claim 2 or 3, wherein the identifying the selected antenna and the dropped antenna by 1 bit, the flag value of the selected antenna is 1, the flag value of the dropped antenna is 0, and the determining the spatial channel correlation according to the number of the selected same antennas of the target object and the target user equipment comprises:

5. The method of claim 2, wherein if it is required to reduce the dimension of the data of all antenna channels in the antenna array to a specified number of channels, the pairing condition further comprises:

6. The method of claim 5, wherein determining whether the target object and the target user device are within the specified number of channels comprises:

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 in the channels with the specified number;

7. The method according to any one of claims 1-3 or 5-6, wherein the pairing condition further comprises:

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

8. A network device configured with an uplink multi-antenna system, the network device comprising: a processor, a memory, and a transceiver;

for any multi-antenna system comprising at least one antenna, carrying out dimensionality reduction processing on uplink physical shared channel (PUSCH) information received by the target user equipment on an antenna array of network equipment by any target user equipment to be allocated with resources on the multi-antenna system to obtain spatial characteristics of the target user equipment;

9. The network device of claim 8, wherein the performing the 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 comprises:

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, setting the space mark of the antenna as a selected antenna;

if the energy of the received signal of the antenna is smaller than the energy threshold, setting the space mark of the antenna as a disuse antenna;

10. The network device of claim 9, wherein for each antenna in the antenna array, if a received signal energy of the antenna is greater than or equal to an energy threshold, then setting a spatial flag of the antenna as a 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 an antenna disuse, the processor is further configured to:

11. The network device of claim 9 or 10, wherein the determining the spatial channel correlation according to the number of selected same antennas of the target object and the target user device, using 1 bit to identify the selected antenna and the dropped antenna, and the flag value of the selected antenna is 1 and the flag value of the dropped antenna is 0, comprises:

12. The network device of claim 9, wherein if it is desired to reduce the data of all antenna channels in the antenna array to a specified number of channels, the pairing condition further comprises:

13. The network device of claim 12, wherein determining whether the target object and the target user device are within the specified number of channels comprises:

14. The network device of any of claims 8-10 or 12-13, wherein the pairing condition further comprises:

15. An apparatus applied to an uplink multi-antenna system, the apparatus comprising:

the system comprises a dimension reduction unit, a resource allocation unit and a resource allocation unit, wherein the dimension reduction unit is used for carrying out dimension reduction processing on uplink physical shared channel (PUSCH) information received by target user equipment on an antenna array of network equipment aiming at any target user equipment to be allocated with resources to obtain spatial characteristics of the target user equipment;

16. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.