CN115037342B

CN115037342B - UE pairing method, device and storage medium

Info

Publication number: CN115037342B
Application number: CN202210828472.0A
Authority: CN
Inventors: 刘英男; 李福昌
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2023-09-05
Anticipated expiration: 2042-07-13
Also published as: CN115037342A

Abstract

The application provides a User Equipment (UE) pairing method, a device and a storage medium, relates to the technical field of communication, and is used for solving the technical problem that UE cannot be paired reasonably. The method comprises the following steps: determining a plurality of data characteristic information corresponding to the candidate paired UEs one by one; determining a first set and a second set in a plurality of candidate paired UEs according to the data characteristic information of each candidate paired UE; pairing the candidate paired UEs in the target set to obtain at least one pairing result; the target set is a first set or a second set; and the paired UE in at least one paired result is the UE in the target set. The application can reasonably pair the UE so as to ensure the resource utilization rate and the reliability of the data transmission of the paired UE based on the MU-MIMO technology.

Description

UE pairing method, device and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a UE pairing method, apparatus, and storage medium.

Background

The multi-user multiple input multiple output (MU-MIMO) technology refers to a plurality of User Equipments (UEs) that perform uplink or downlink data transmission in the same time slot, and may perform space division multiplexing on frequency domain resources in a pairing manner, so as to improve the resource utilization rate and realize high-rate data transmission.

Currently, when a base station performs resource scheduling based on MU-MIMO technology, a plurality of UEs are generally paired without distinction. It should be understood that there is often a large difference between the service scenarios and hardware configurations of multiple UEs. Therefore, when the pairing method is adopted, UEs with large data difference or large signal interference can be paired, so that not only is the situation that frequency domain resources cannot be fully utilized easily caused, but also the reliability of data transmission cannot be ensured, and a plurality of UEs are difficult to pair reasonably.

Disclosure of Invention

The invention provides a UE pairing method, a device and a storage medium, which are used for solving the technical problem that UE cannot be reasonably paired.

In order to achieve the above purpose, the invention adopts the following technical scheme:

in a first aspect, a UE pairing method is provided, including: a plurality of data characteristic information corresponding to the candidate paired UEs one by one may be determined, and the first set and the second set may be determined among the candidate paired UEs according to the data characteristic information of each candidate paired UE, so that the candidate paired UEs in the target set may be paired to obtain at least one pairing result. Wherein, the data characteristic information comprises the data type to be transmitted and the data quantity to be transmitted of the candidate paired UE. The first set includes candidate paired UEs having a data type to be transmitted that is a preset data type and an amount of data to be transmitted that is greater than or equal to a preset data amount threshold. The second set includes candidate paired UEs having a data type to be transmitted that is a preset data type and an amount of data to be transmitted that is less than a preset data amount threshold. The target set is either the first set or the second set. And the paired UE in at least one paired result is the UE in the target set.

Optionally, before determining the plurality of data characteristic information corresponding to the plurality of candidate paired UEs one by one, the UE pairing method further includes: determining a plurality of channel quality parameters corresponding to a plurality of UE to be scheduled one by one; each channel quality parameter comprises a signal-to-interference-plus-noise ratio (SINR) value and a Channel Quality Indication (CQI) value of the UE to be scheduled corresponding to each channel quality parameter; determining to-be-scheduled UE meeting a first preset condition in a plurality of to-be-scheduled UE as a plurality of candidate paired UE; the preset condition is that the SINR value is greater than or equal to a preset SINR threshold and/or the CQI value is greater than or equal to a preset CQI threshold.

Optionally, pairing candidate paired UEs in the target set in the multiple sets to obtain at least one pairing result, which specifically includes: executing pairing operation on the target set to determine at least one pairing result corresponding to the target set; the pairing operation includes: determining a current interference tolerance set corresponding to the current pairing result; the current pairing result comprises a target UE and a first candidate UE; the current interference tolerance set includes interference tolerances of the target UE and the first candidate UE; the target UE is any candidate pairing UE in the target set; the first candidate UE is any candidate paired UE except the target UE in the target set; when the interference tolerance less than or equal to the preset tolerance threshold exists in the current interference tolerance set, updating the current pairing result as follows: the target UE and the second candidate UE, and updating the current interference tolerance set as follows: interference tolerance of the target UE and the second candidate UE; the second candidate UE is any candidate paired UE except the target UE and the first candidate UE in the target set; when the interference tolerance less than or equal to a preset tolerance threshold does not exist in the current interference tolerance set, determining the space division multiplexing layer number corresponding to the current pairing result; when the number of space division multiplexing layers corresponding to the current pairing result is equal to a preset layer number threshold, determining the current pairing result as a pairing result, and updating the target set as: other candidate paired UEs than the candidate paired UE in the current paired result; when the number of space division multiplexing layers corresponding to the current pairing result is smaller than a preset layer number threshold, updating the current pairing result as follows: the target UE, the first candidate UE, and the second candidate UE, and update the current interference tolerance set as: interference tolerance of the target UE and the second candidate UE, interference tolerance of the first candidate UE and the second candidate UE; and outputting at least one pairing result until the candidate paired UE does not exist in the target set.

Optionally, the UE pairing method further includes: determining a target beam of a target UE; the target beam is an SRS beam with Reference Signal Received Power (RSRP) value larger than or equal to a preset RSRP value in a plurality of SRS beams of the channel sounding reference signals of the target UE; determining a first RSRP value of a first candidate UE at the target beam; and determining the difference between the RSRP value of the target beam and the first RSRP value as the interference tolerance of the target UE and the first candidate UE.

Optionally, after obtaining at least one pairing result, the UE pairing method further includes: determining at least one scheduling time slot corresponding to at least one pairing result one by one; and one scheduling time slot is used for transmitting data to be transmitted of the candidate paired UE in one pairing result.

Optionally, the UE pairing method further includes: determining a third set among the plurality of candidate paired UEs; the third set comprises candidate paired UEs of which the data types to be transmitted are not preset data types; transmitting data to be transmitted of candidate paired UE in the third set according to a preset mode; the preset mode includes a single user multiple input multiple output mode.

In a second aspect, the present invention provides a UE pairing device, including: a determination unit and a processing unit; a determining unit, configured to determine a plurality of data feature information corresponding to a plurality of candidate paired UEs one by one; the data characteristic information comprises a data type to be transmitted and a data quantity to be transmitted of a candidate paired UE; the determining unit is further used for determining a first set and a second set in the plurality of candidate paired UEs according to the data characteristic information of each candidate paired UE; the first set comprises candidate paired UE with the data type to be transmitted being a preset data type and the data amount to be transmitted being greater than or equal to a preset data amount threshold; the second set comprises candidate paired UE with the data type to be transmitted being a preset data type and the data quantity to be transmitted being smaller than a preset data quantity threshold value; the processing unit is used for pairing the candidate paired UE in the target set to obtain at least one pairing result; the target set is a first set or a second set; and the paired UE in at least one paired result is the UE in the target set.

Optionally, the determining unit is further configured to determine a plurality of channel quality parameters corresponding to the plurality of UEs to be scheduled one by one; each channel quality parameter comprises a signal-to-interference-plus-noise ratio (SINR) value and a Channel Quality Indication (CQI) value of the UE to be scheduled corresponding to each channel quality parameter; the determining unit is further configured to determine to-be-scheduled UEs satisfying a first preset condition from the plurality of to-be-scheduled UEs as a plurality of candidate paired UEs; the preset condition is that the SINR value is greater than or equal to a preset SINR threshold and/or the CQI value is greater than or equal to a preset CQI threshold.

Optionally, the processing unit is specifically configured to:

executing pairing operation on the target set to determine at least one pairing result corresponding to the target set;

the pairing operation includes: determining a current interference tolerance set corresponding to the current pairing result; the current pairing result comprises a target UE and a first candidate UE; the current interference tolerance set includes interference tolerances of the target UE and the first candidate UE; the target UE is any candidate pairing UE in the target set; the first candidate UE is any candidate paired UE except the target UE in the target set;

when the interference tolerance less than or equal to the preset tolerance threshold exists in the current interference tolerance set, updating the current pairing result as follows: the target UE and the second candidate UE, and updating the current interference tolerance set as follows: interference tolerance of the target UE and the second candidate UE; the second candidate UE is any candidate paired UE except the target UE and the first candidate UE in the target set;

When the interference tolerance less than or equal to a preset tolerance threshold does not exist in the current interference tolerance set, determining the space division multiplexing layer number corresponding to the current pairing result;

when the number of space division multiplexing layers corresponding to the current pairing result is equal to a preset layer number threshold, determining the current pairing result as a pairing result, and updating the target set as: other candidate paired UEs than the candidate paired UE in the current paired result;

when the number of space division multiplexing layers corresponding to the current pairing result is smaller than a preset layer number threshold, updating the current pairing result as follows: the target UE, the first candidate UE, and the second candidate UE, and update the current interference tolerance set as: interference tolerance of the target UE and the second candidate UE, interference tolerance of the first candidate UE and the second candidate UE;

and outputting at least one pairing result until the candidate paired UE does not exist in the target set.

Optionally, the determining unit is further configured to determine a target beam of the target UE; the target beam is an SRS beam with Reference Signal Received Power (RSRP) value larger than or equal to a preset RSRP value in a plurality of SRS beams of the channel sounding reference signals of the target UE; the determining unit is further used for determining a first RSRP value of the first candidate UE in the target beam; and the determining unit is further used for determining the difference between the RSRP value of the target beam and the first RSRP value as the interference tolerance of the target UE and the first candidate UE.

Optionally, the determining unit is further configured to determine at least one scheduling slot corresponding to at least one pairing result one-to-one; and one scheduling time slot is used for transmitting data to be transmitted of the candidate paired UE in one pairing result.

Optionally, the UE pairing device further includes: and a transmitting unit. A determining unit, configured to determine a third set among the plurality of candidate paired UEs; the third set comprises candidate paired UEs of which the data types to be transmitted are not preset data types; a sending unit, configured to transmit data to be transmitted of the candidate paired UEs in the third set according to a preset manner; the preset mode includes a single user multiple input multiple output mode.

In a third aspect, a UE pairing apparatus is provided, including a memory and a processor; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus; when the UE pair is running, the processor executes computer-executable instructions stored in the memory to cause the UE pair to perform the load balancing method as in the first aspect.

The UE pairing device may be a network device or may be a part of a device in a network device, for example, a chip system in a network device. The system-on-a-chip is adapted to support the network device to implement the functions involved in the first aspect and any one of its possible implementations, e.g. to receive, determine, and offload data and/or information involved in the above-mentioned data processing method. The chip system includes a chip, and may also include other discrete devices or circuit structures.

In a fourth aspect, a computer-readable storage medium is provided, characterized in that the computer-readable storage medium comprises computer-executable instructions that, when run on a computer, cause the computer to perform the UE pairing method as in the first aspect.

It should be noted that the above-mentioned computer instructions may be stored in whole or in part on the first computer readable storage medium. The first computer readable storage medium may be packaged together with the processor of the UE pairing device or may be packaged separately from the processor of the UE pairing device, which is not limited in the present application.

In the present application, the names of the UE pairing apparatuses described above do not constitute limitations on the devices or function modules themselves, and in actual implementation, these devices or function modules may appear under other names. Insofar as the function of each device or function module is similar to that of the present application, it falls within the scope of the claims of the present application and the equivalents thereof.

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

The technical scheme provided by the application has at least the following beneficial effects:

based on any aspect of the above, the present application may determine a plurality of data characteristic information corresponding to a plurality of candidate paired UEs one by one, and may determine, according to the data characteristic information of each candidate paired UE, a first set and a second set among the plurality of candidate paired UEs, so that the candidate paired UEs in the target set may be paired to obtain at least one pairing result. Wherein, the data characteristic information comprises the data type to be transmitted and the data quantity to be transmitted of the candidate paired UE. The first set includes candidate paired UEs having a data type to be transmitted that is a preset data type and an amount of data to be transmitted that is greater than or equal to a preset data amount threshold. The second set includes candidate paired UEs having a data type to be transmitted that is a preset data type and an amount of data to be transmitted that is less than a preset data amount threshold. The target set is either the first set or the second set. And the paired UE in at least one paired result is the UE in the target set.

Compared with the indiscriminate pairing mode in the prior art, the method and the device can select and divide the candidate paired UE meeting the conditions through the type of the data to be transmitted and the data quantity to be transmitted, and pair the divided candidate paired UE through pairing operation, so that the space division multiplexing layer number occupied by the pairing result is equal to the preset layer number threshold value. Under the condition that the preset layer number threshold is the maximum space division multiplexing layer number supported by the base station, the method and the device can avoid the problem that the frequency domain resources cannot be fully utilized, so that the resource utilization rate is improved, and the transmission efficiency is improved. Meanwhile, when the preset data type is primary transmission data, the method and the device can avoid pairing the UE of the retransmission data with the data type to be transmitted, so that the reliability of data transmission is improved. Therefore, the application can reasonably pair the UE and can ensure the resource utilization rate and the transmission efficiency of the data transmission of the paired UE by adopting the MU-MIMO technology.

Drawings

Fig. 1 is a schematic diagram of UE pairing transmission according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 3 is a flowchart of a UE pairing method according to an embodiment of the present application;

Fig. 4 is a second flowchart of a UE pairing method according to an embodiment of the present invention;

fig. 5 is a flowchart of a UE pairing method according to an embodiment of the present invention;

fig. 6 is a flowchart of a UE pairing method according to an embodiment of the present invention;

fig. 7 is a flowchart fifth of a UE pairing method according to an embodiment of the present invention;

fig. 8 is a second schematic diagram of UE pairing transmission according to an embodiment of the present invention;

fig. 9 is a flowchart sixth of a UE pairing method according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a UE pairing device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 12 is a schematic diagram of a base station according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.

In embodiments of the invention, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the description of the present invention, "/" means "or" unless otherwise indicated, for example, A/B may mean A or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Further, "at least one", "a plurality" means two or more. The terms "first," "second," and the like do not limit the number and order of execution, and the terms "first," "second," and the like do not necessarily differ.

With the evolution and development of wireless communication technology, the development of large-scale antenna technology makes the larger number of antennas become key to increase the channel capacity, for example, 32tr,64tr becomes a conventional configuration of 5G time division duplex (time division duplexing, TDD), and downlink channel space layering of a cell can be up to 16 layers, even higher to 24 layers with the increase of the number of antennas. However, the antenna limitation of the UE and the size and processing capacity of EU at present can only achieve 4TR, so that in order to fully utilize the downlink space multi-stream characteristics of the cell, the multi-UE pairing needs to adopt MU-MIMO technology to achieve higher transmission rate of the cell.

MU-MIMO refers to the time-frequency resource that multiple UEs can space-division multiplex when transmitting uplink and downlink data. As shown in fig. 1, UE2, UE3 and UE4 are paired UEs, and use the same time-frequency resource to perform space division multiplexing by using the near orthogonality of the channels, so as to improve the uplink and downlink cell capacity and spectrum efficiency. UE5 and UE6 are not paired with other UE, and a single-user multiple-input multiple-output (SU-MIMO) technology is adopted, so that time-frequency resources are independently occupied.

When a plurality of UEs space-division multiplex time-frequency resources, the factors of the possibility that the UEs are interfered include the quality of the channel sounding reference signal (sounding reference signal, SRS) of the UEs, the near orthogonality of the channels between the UEs, and the correlation of the channels.

That is, when the SRS quality of the UE is good and the channel correlation between UEs is small, the interference between UEs can be well eliminated, and the method is suitable for MU-MIMO pairing. When the SRS quality of the UE is poor (for example, SINR is low), or the channel correlation between UEs is strong, the interference between UEs cannot be well eliminated, and MU-MIMO may instead cause a decrease in the throughput of the system.

In the related art, when scheduling resources based on MU-MIMO technology, a plurality of UEs are generally paired without distinction. It should be understood that there is often a large difference between the service scenarios and hardware configurations of multiple UEs. Therefore, when the pairing method is adopted, UEs with large data difference or large signal interference can be paired, so that not only is the situation that frequency domain resources cannot be fully utilized easily caused, but also the reliability of data transmission cannot be ensured, and a plurality of UEs are difficult to pair reasonably.

In order to solve the above-mentioned problems in the prior art, an embodiment of the present application provides a UE pairing method, which can determine a plurality of data feature information corresponding to a plurality of candidate paired UEs one by one, and determine a first set and a second set in the plurality of candidate paired UEs according to the data feature information of each candidate paired UE, so that the candidate paired UEs in a target set can be paired to obtain at least one pairing result. Wherein, the data characteristic information comprises the data type to be transmitted and the data quantity to be transmitted of the candidate paired UE. The first set includes candidate paired UEs having a data type to be transmitted that is a preset data type and an amount of data to be transmitted that is greater than or equal to a preset data amount threshold. The second set includes candidate paired UEs having a data type to be transmitted that is a preset data type and an amount of data to be transmitted that is less than a preset data amount threshold. The target set is either the first set or the second set. And the paired UE in at least one paired result is the UE in the target set.

Compared with the indiscriminate pairing mode in the prior art, the method and the device can select and divide the candidate paired UE meeting the conditions through the type of the data to be transmitted and the data quantity to be transmitted, and pair the divided candidate paired UE through pairing operation, so that the space division multiplexing layer number occupied by the pairing result is equal to the preset layer number threshold value. The application can avoid the problem that the frequency domain resource can not be fully utilized under the condition that the preset layer number threshold is the maximum space division multiplexing layer number supported by the base station, and can avoid pairing the UE of the data type to be transmitted and the retransmission data when the preset data type is the primary transmission data. Therefore, the application can reasonably pair the UE so as to ensure the resource utilization rate and the reliability of the data transmission of the paired UE based on the MU-MIMO technology.

The UE pairing method provided by the application can be applied to a communication system. Fig. 2 is a schematic structural diagram of a communication system according to an embodiment of the present application. As shown in fig. 2, the communication system 100 may include: a base station 101 and a plurality of UEs 102. Wherein the base station 101 may be communicatively coupled to each UE102.

Alternatively, the base station in fig. 2, i.e. the public mobile communication base station, is an interface device for accessing the internet by a mobile device, and is also a form of a radio station, which refers to a radio transceiver station that performs information transfer with the UE102 through a mobile communication switching center in a certain radio coverage area.

Alternatively, the base station 101 in fig. 2 may include a plurality of transmit and receive antenna (transmitter and receiver, TR) arrays, where the TR array is composed of a transmit antenna (TX) array and a receive antenna (RX) array. Multiple TR arrays may be used for signal transmission with each UE102, carrying data transmitted between base station 101 and each UE102.

In a possible manner, the base station 101 may utilize multiple TR arrays to implement data transmission between UEs 102 in the pairing result based on MU-MIMO technology based on the pairing result of multiple UEs 102.

Optionally, the base station 101 in fig. 2 may be further configured to send a channel state information reference signal (CSI-RS) to each UE102 in a bandwidth of an active portion (BWP). In this way, each UE102, after receiving the CSI-RS transmitted by the base station 101, may estimate a channel in response to the CSI-RS and report channel quality information to the base station 101. Accordingly, the base station 101 may receive channel quality information transmitted by each UE 102.

It should be noted that the channel quality information may include a channel quality indication (channel quality Indicator, CQI), a precoding matrix indication (precoding matrix indication, PMI), a Rank Indication (RI), and the like.

In one implementation, the base station 101 may also be configured to receive SRS transmitted by each UE102 within the active BWP. The base station 101 may also be configured to process SRS transmitted by each UE102 to determine a signal-to-interference-plus-noise ratio (signal to interference plus noise ratio, SINR), a reference signal received power (reference signal receiving power, RSRP), a PMI, and the like for a channel with each UE 102. The base station 101 may also be configured to count the amount and type of data to be transmitted by each UE102 in the radio link layer control protocol (radio link control, RLC) layer.

Alternatively, the UE102 in fig. 2 may be a terminal. The terminal may be a device for providing voice and/or data connectivity to a user, a handheld device having wireless connectivity, or other processing device connected to a wireless modem. The wireless terminal may communicate with one or more core networks via a radio access network (radio access network, RAN). The wireless terminal may be a mobile terminal, such as a computer with a mobile terminal, or a portable, pocket, hand-held, computer-built-in mobile device that exchanges voice and/or data with a radio access network, e.g., a cell phone, tablet, notebook, netbook, personal digital assistant (personal digital assistant, PDA). The embodiment of the present application is not limited in any way.

Fig. 3 is a schematic flow chart of a UE pairing method according to an embodiment of the present application. The UE pairing method may be applied to the communication system 100 shown in fig. 2 and may be performed by the base station 101 shown in fig. 2.

Referring to fig. 3, a UE pairing method provided by an embodiment of the present application may include: S301-S303.

S301, the base station determines a plurality of data characteristic information corresponding to a plurality of candidate paired UEs one by one.

Wherein, the data characteristic information comprises the data type to be transmitted and the data quantity to be transmitted of the candidate paired UE.

In practical applications, a plurality of UEs to be scheduled may initiate a data transmission request at the same time. In this way, in a scheduling period, the base station needs to efficiently schedule and transmit the data to be transmitted of the UEs to be scheduled, so as to ensure user experience. In this case, the base station may enable the MU-MIMO function, pair the UEs to be scheduled, and schedule the data to be transmitted by using the MU-MIMO technology.

Specifically, when pairing a plurality of UEs to be scheduled, the base station may determine, according to channel qualities of the plurality of UEs to be scheduled, the UEs to be scheduled with better channel qualities as candidate paired UEs, so as to obtain a plurality of candidate paired UEs. In this way, the base station can avoid pairing transmission to the UE to be scheduled with poor channel quality, thereby ensuring user experience. For the implementation of this procedure, reference may be made to the following specific descriptions of S401-S402, which are not repeated here.

Then, the base station may determine a data type to be transmitted and an amount of data to be transmitted of each candidate paired UE in the buffered data of the RLC layer, so as to obtain a plurality of data characteristic information corresponding to a plurality of candidate paired UEs one by one.

It should be noted that the type of data to be transmitted of the candidate paired UE may be primary transmission data or retransmission data, and may be specifically determined according to a status (status) of RLC layer protocol data unit (protocol data unit, PDU) feedback. I.e. hybrid automatic repeat request (hybrid automatic repeat request, HARQ) feedback status.

In a possible example, the packet format of the HARQ feedback state may be as shown in table 1 below, and the HARQ feedback state may include ACK (Acknowledgement) characters for indicating acknowledgement reception and NACK (Negative Acknowledgement) characters for negative acknowledgement. The ACK-Sequence Number (SN) in table 1 may be used to indicate the correctly accepted data sequence number, i.e., the data that was successfully transmitted initially. The nack_sn may be used to indicate a data sequence number of a reception error, i.e., data that needs to be retransmitted. Based on the above, when the data to be transmitted of the candidate paired UE is marked by the ACK character, it indicates that the data transmitted by the candidate paired UE before has been acknowledged to be received, and the data type to be transmitted of the candidate paired UE is the primary transmission data. When the data to be transmitted of the candidate paired UE is marked by NACK characters, the data transmission error of the candidate paired UE transmitted before is indicated, and the data type to be transmitted of the candidate paired UE is retransmitted data.

TABLE 1

S302, the base station determines a first set and a second set in a plurality of candidate paired UEs according to the data characteristic information of each candidate paired UE.

The first set includes candidate paired UEs having a data type to be transmitted that is a preset data type and an amount of data to be transmitted that is greater than or equal to a preset data amount threshold. The second set includes candidate paired UEs having a data type to be transmitted that is a preset data type and an amount of data to be transmitted that is less than a preset data amount threshold.

In one possible way, the preset data amount threshold and the preset data type may be preset in the base station by an operation and maintenance person. The preset data amount threshold may be used to distinguish whether the data to be transmitted of the candidate paired UE is a big data packet or a small data packet. The preset data type may be used to distinguish the data to be transmitted of the candidate paired UEs as primary transmission data or retransmission data. For example, the preset data amount threshold may be set to 10Kbit. The smaller the value, the more candidate paired UEs the scheduling time is determined to be large packets. Conversely, the larger the number, the fewer candidate paired UEs that are determined to be large data packets.

Based on the above, after determining the plurality of data characteristic information corresponding to the plurality of candidate paired UEs one by one, the base station may divide the candidate paired UEs whose data types to be transmitted are preset data types and whose data amounts to be transmitted are greater than or equal to the preset data amount threshold into the first set according to the preset data amount threshold and the preset data types, that is, divide the candidate paired UEs whose data to be transmitted are primary data and are large data packets into the first set. Meanwhile, the base station may divide the candidate paired UEs of which the data types to be transmitted are preset data types and the data amounts to be transmitted are smaller than the preset data amount threshold value into the second set, that is, divide the candidate paired UEs of which the data to be transmitted are primary transmission data and are small data packets into the second set.

In a possible example, in combination with the example in S301, the first set is preset to be a, and the second setIs B. Wherein a= { a ₁ ,a ₂ ,…，a _i }。a _i For representing candidate paired UEs belonging to the first set a, a _i Is a big data packet and the status type is ACK. Wherein b= { B ₁ ,b ₂ ,…，b _i }。b _i For representing candidate paired UEs belonging to the second set B, B _i Is a small data packet and the status type is NACK.

S303, the base station pairs the candidate paired UE in the target set to obtain at least one pairing result.

Wherein the target set is the first set or the second set. And the paired UE in at least one paired result is the UE in the target set.

Specifically, after determining the first set and the second set, the base station may determine, according to interference tolerance of candidate paired UEs in the target set, channel correlations of the candidate paired UEs, so as to pair the candidate paired UEs with relatively large interference tolerance, that is, relatively poor channel correlations, to obtain at least one pairing result corresponding to the target set. Subsequently, the base station can pair and transmit the candidate paired UE in each paired result by adopting the MU-MIMO technology according to the paired result.

It should be noted that, the candidate paired UEs in each paired result are UEs paired to perform spatial hierarchical multiplexing, and the number of spatial hierarchical multiplexing layers occupied by the candidate paired UEs in each paired result is smaller than or equal to the maximum number of spatial hierarchical multiplexing layers supported by the base station.

In an implementation manner, in order to avoid that when the UE performs data transmission after pairing, the UE with poor channel quality affects the transmission efficiency of the paired UE, in connection with fig. 3, before S301, that is, before the base station determines a plurality of data feature information corresponding to a plurality of candidate paired UEs one by one, as shown in fig. 4, the UE pairing method provided in the embodiment of the present invention further includes S401-S402.

S401, the base station determines a plurality of channel quality parameters corresponding to a plurality of to-be-scheduled UEs one by one.

Wherein, each channel quality parameter comprises SINR value and CQI value of UE to be scheduled corresponding to each channel quality parameter. Each channel quality parameter is used to indicate the channel quality of a channel between the base station and the UE that initiated the data transmission request.

In one possible manner, each UE to be scheduled may transmit SRS simultaneously when transmitting a data transmission request to the base station. Accordingly, the base station may receive the SRS transmitted by each UE to be scheduled, and determine an SINR value with each UE to be scheduled. And, the base station may transmit CSI-RS to each UE to be scheduled that initiates a data transmission request. Correspondingly, each UE to be scheduled can report the CQI value to the base station after receiving the CSI-RS from the base station and performing corresponding processing. In this way, the base station may determine a plurality of channel quality parameters corresponding one-to-one to the plurality of UEs to be scheduled.

S402, the base station determines to-be-scheduled UE meeting a first preset condition in the plurality of to-be-scheduled UE as a plurality of candidate paired UE.

The preset condition is that the SINR value is greater than or equal to a preset SINR threshold value and/or the CQI value is greater than or equal to a preset CQI threshold value.

In a possible implementation, the preset SINR threshold may be SINR _Threshold If the base station determines that the SINR value of the UE to be scheduled which initiates the data transmission request is greater than or equal to the SINR _Threshold And determining the UE to be scheduled as candidate paired UE. The preset CQI threshold may be CQI _Threshold If the base station determines that the CQI value of the UE to be scheduled which initiates the data transmission request is greater than or equal to the CQI _Threshold And determining the UE to be scheduled as candidate paired UE.

Exemplary, if the base station determines the SINR in step S301 _UE1 ＝26、SINR _UE2 ＝22、SINR _UE3 ＝25、SINR _UE4 ＝18，SINR _UE5 ＝29，CQI _UE1 ＝15、CQI _UE2 ＝19、CQI _UE3 ＝23、CQI _UE4 =22 and CQI _UE5 =20, and SINR _Threshold ＝25，CQI _Threshold =20, the base station compares the SINR value of each UE to be scheduled initiating the data transmission request with a preset SINR threshold, and the CQI value of the UE to be scheduled with a preset CQI thresholdThe values may determine that UE1, UE3, UE4, and UE5 are candidate paired UEs.

It should be noted that, the preset SINR threshold and the preset CQI threshold may be set in the base station in advance by an operator. The higher the preset SINR threshold is set, the better the channel quality of the channel between the screened candidate paired UE and the base station. The lower the preset SINR threshold setting, the more candidate paired UEs are screened out.

It can be understood that in the UE pairing method provided by the embodiment of the present invention, before pairing the UE that initiates the data transmission request, by screening the UE according to the channel quality, it can be ensured that the channel quality of the UE that participates in pairing is better, so that the UE with poor channel quality is prevented from affecting the transmission of other UEs, and the transmission efficiency is reduced.

In an implementation manner, in conjunction with fig. 3, in S303, when the base station pairs candidate paired UEs in the target set in the multiple sets to obtain at least one pairing result, as shown in fig. 5, an embodiment of the present invention provides an alternative implementation manner, which specifically includes S501.

S501, the base station executes pairing operation for the target set to determine at least one pairing result corresponding to the target set.

Wherein the pairing operation includes: determining a current interference tolerance set corresponding to the current pairing result; the current pairing result comprises a target UE and a first candidate UE; the current interference tolerance set includes interference tolerances of the target UE and the first candidate UE; the target UE is any candidate pairing UE in the target set; the first candidate UE is any candidate paired UE except the target UE in the target set;

Then, when the interference tolerance less than or equal to the preset tolerance threshold exists in the current interference tolerance set, updating the current pairing result as follows: the target UE and the second candidate UE, and updating the current interference tolerance set as follows: interference tolerance of the target UE and the second candidate UE; the second candidate UE is any candidate paired UE except the target UE and the first candidate UE in the target set; when the interference tolerance less than or equal to a preset tolerance threshold does not exist in the current interference tolerance set, determining the space division multiplexing layer number corresponding to the current pairing result;

then, when the number of space division multiplexing layers corresponding to the current pairing result is equal to a preset layer number threshold, determining the current pairing result as a pairing result, and updating the target set as: other candidate paired UEs than the candidate paired UE in the current paired result; when the number of space division multiplexing layers corresponding to the current pairing result is smaller than a preset layer number threshold, updating the current pairing result as follows: the target UE, the first candidate UE, and the second candidate UE, and update the current interference tolerance set as: interference tolerance of the target UE and the second candidate UE, interference tolerance of the first candidate UE and the second candidate UE; and outputting at least one pairing result until the candidate paired UE does not exist in the target set.

Exemplary, the candidate paired UEs in the preset target set are UE1, UE2, UE3, UE4, UE5, UE6 and UE7, and the target UE included in the current paired set is UE1, the first candidate UE is UE2, the second candidate UE is UE3, and the optimal beam of UE3 is BM _UE3 The RSRP of UE3 is RSRP _UE3 . Base station through BM _UE3 Measuring the RSRP of UE1 and UE2, respectively, being RSRP _UE1 And RSRP _UE2 . Further, the base station may determine that the current set of interference tolerances includes the interference tolerance of UE3 with UE1 and the interference tolerance of UE3 with UE2 as shown in table 2 below.

TABLE 2

In one implementation manner, in order to determine the interference tolerance of the target UE and the first candidate UE, as shown in fig. 6, an embodiment of the present application provides an alternative implementation manner, which specifically includes S601-S603.

S601, a base station determines a target beam of a target UE.

The target beam is an SRS beam with an RSRP value larger than or equal to a preset RSRP value in a plurality of SRS beams of the target UE.

As a possible implementation manner, the base station measures the RSRP of the SRS transmitted by the target UE through the CSI-RS beam, and determines the beam corresponding to the maximum value of the RSRP as the target beam of the target UE.

S602, the base station determines a first RSRP value of a first candidate UE in a target beam.

As a possible implementation, the base station measures the RSRP value of the SRS of the first candidate UE through the target beam of the target UE and determines the RSRP value as the first RSRP value.

S603, the base station determines the difference between the RSRP value of the target beam and the first RSRP value as the interference tolerance of the target UE and the first candidate UE.

Specifically, after determining the target beam of the target UE and the first RSRP value of the first candidate UE at the target beam, the base station may determine a difference between the RSRP value of the target beam and the first RSRP value as an interference tolerance between the target UE and the first candidate UE to determine a channel correlation between the target UE and the first candidate UE.

It should be noted that, the interference tolerance refers to a spatial interference difference between assigned pairs of UEs, and the larger the spatial interference tolerance is, the smaller the interference of the paired UEs in spatial hierarchical multiplexing is, and the better the performance is when scheduling transmission based on MU-MIMO technology.

In an implementation manner, in conjunction with fig. 3, after S303, that is, after the base station pairs the candidate paired UEs in the target set to obtain at least one pairing result, as shown in fig. 7, the UE pairing method provided in the embodiment of the present application further includes S701.

S701, the base station determines at least one scheduling slot corresponding to at least one pairing result one by one.

And the scheduling time slot is used for transmitting the data to be transmitted of the candidate paired UE in the paired result.

As a possible implementation manner, the base station may allocate the candidate paired UEs in the same pairing result in the resource block group of the same scheduling slot (slot), so that the candidate paired UEs in the same pairing result may transmit the system message or the user data.

In some embodiments, a scheduler in the base station allocates resources on a physical downlink shared channel (physical downlink shared channel, PDSCH) for candidate paired UEs of the same slot and selects an appropriate modulation and coding strategy (modulation and coding scheme, MCS) for transmission of system messages or user data. Wherein, include: allocating time-frequency domain resources on the PDSCH for the candidate paired UE; allocating demodulation reference signal (demodulation reference signal, DMRS) resources for the candidate paired UEs so that the candidate paired UEs demodulate PDSCH; an appropriate MCS is selected for the candidate paired UEs for transmission of data on the PDSCH.

In the third generation partnership project (3rd generation partnership project,3GPP) TS38.214V15.4.0, chapter 5.1.2.2Resource allocation in frequency domain specifies two resource allocation methods, type0 and type1, where type0 is an allocation method using RBG granularity allocation, and supports discontinuous allocation and continuous allocation; type1 is an allocation scheme allocated with a granularity of Resource Blocks (RBs), and only continuous allocation is supported. When allocating PDSCH frequency domain resources to candidate paired UEs, the resources may be allocated to the candidate paired UEs with reference to the contents in the above specification.

For example, if the number of spatially layered multiplexing layers supported by the base station is 16, candidate paired UEs in one pairing result are UE1, UE2, UE3, UE4 and UE5 respectively, and the number of spatially layered multiplexing layers required to be occupied by each candidate paired UE is 4, 2, 4 and 4 respectively. The base station may allocate UE1 to UE5 under slot1 as shown in fig. 8.

In an implementation manner, as shown in fig. 9, the UE pairing method provided in the embodiment of the present application further includes S801-S802.

S801, the base station determines a third set among a plurality of candidate paired UEs.

The third set includes candidate paired UEs whose data types to be transmitted are not preset data types.

Specifically, after determining the plurality of data characteristic information corresponding to the plurality of candidate paired UEs one by one, the base station may divide the candidate paired UEs for which the data type to be transmitted is not the preset data type, that is, the data to be transmitted is not the primary data, but the retransmitted data, into candidate paired UEs in the third set.

S802, the base station transmits data to be transmitted of the candidate paired UE in the third set according to a preset mode.

The preset mode comprises a single-user multiple-input multiple-output mode.

It should be noted that, for the candidate paired UE whose data type to be transmitted is not the preset type data, that is, the candidate paired UE that needs to retransmit data, in order to ensure reliability of data retransmission, the base station does not pair the candidate paired UE by using MU-MIMO technology. In this case, the base station may schedule the transmission of the data to be transmitted of the candidate paired UE by using a single-user mimo method.

The embodiment of the application provides a UE pairing method, which can determine a plurality of pieces of data characteristic information corresponding to a plurality of candidate paired UEs one by one, and can determine a first set and a second set in the plurality of candidate paired UEs according to the data characteristic information of each candidate paired UE, so that the candidate paired UEs in a target set can be paired to obtain at least one pairing result. Wherein, the data characteristic information comprises the data type to be transmitted and the data quantity to be transmitted of the candidate paired UE. The first set includes candidate paired UEs having a data type to be transmitted that is a preset data type and an amount of data to be transmitted that is greater than or equal to a preset data amount threshold. The second set includes candidate paired UEs having a data type to be transmitted that is a preset data type and an amount of data to be transmitted that is less than a preset data amount threshold. The target set is either the first set or the second set. And the paired UE in at least one paired result is the UE in the target set.

The foregoing description of the solution provided by the embodiments of the present invention has been mainly presented in terms of a method. To achieve the above functions, it includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The embodiment of the invention can divide the functional modules of the base station according to the method example, for example, each functional module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. Optionally, the division of the modules in the embodiment of the present invention is schematic, which is merely a logic function division, and other division manners may be implemented in practice.

Fig. 10 is a schematic structural diagram of a UE pairing device according to an embodiment of the present invention. The UE pairing device may be configured to perform the UE pairing method described above. As shown in fig. 10, the UE pairing device includes: a determination unit 110 and a processing unit 120.

A determining unit 110, configured to determine a plurality of data feature information corresponding to a plurality of candidate paired UEs one by one; the data characteristic information comprises a data type to be transmitted and a data quantity to be transmitted of a candidate paired UE; for example, as shown in fig. 3, the determination unit 110 may be used to perform S301.

A determining unit 110, configured to determine a first set and a second set among the candidate paired UEs according to the data characteristic information of each candidate paired UE; the first set comprises candidate paired UE with the data type to be transmitted being a preset data type and the data amount to be transmitted being greater than or equal to a preset data amount threshold; the second set comprises candidate paired UE with the data type to be transmitted being a preset data type and the data quantity to be transmitted being smaller than a preset data quantity threshold value; for example, as shown in fig. 3, the determination unit 110 may be used to perform S302.

A processing unit 120, configured to pair candidate paired UEs in the target set to obtain at least one pairing result; the target set is a first set or a second set; and the paired UE in at least one paired result is the UE in the target set. For example, as shown in fig. 3, the processing unit 120 may be used to perform S303.

Optionally, the determining unit 110 is further configured to determine a plurality of channel quality parameters corresponding to the plurality of UEs to be scheduled one by one; each channel quality parameter comprises a signal-to-interference-plus-noise ratio (SINR) value and a Channel Quality Indication (CQI) value of the UE to be scheduled corresponding to each channel quality parameter; for example, as shown in fig. 4, the determination unit 110 may be used to perform S401.

The determining unit 110 is further configured to determine, as a plurality of candidate paired UEs, UEs to be scheduled, which satisfy a first preset condition from among the plurality of UEs to be scheduled; the preset condition is that the SINR value is greater than or equal to a preset SINR threshold and/or the CQI value is greater than or equal to a preset CQI threshold. For example, as shown in fig. 4, the determination unit 110 may be used to perform S402.

Optionally, the processing unit 120 is specifically configured to:

executing pairing operation on the target set to determine at least one pairing result corresponding to the target set; the pairing operation includes: determining a current interference tolerance set corresponding to the current pairing result; the current pairing result comprises a target UE and a first candidate UE; the current interference tolerance set includes interference tolerances of the target UE and the first candidate UE; the target UE is any candidate pairing UE in the target set; the first candidate UE is any candidate paired UE except the target UE in the target set; when the interference tolerance less than or equal to the preset tolerance threshold exists in the current interference tolerance set, updating the current pairing result as follows: the target UE and the second candidate UE, and updating the current interference tolerance set as follows: interference tolerance of the target UE and the second candidate UE; the second candidate UE is any candidate paired UE except the target UE and the first candidate UE in the target set; when the interference tolerance less than or equal to a preset tolerance threshold does not exist in the current interference tolerance set, determining the space division multiplexing layer number corresponding to the current pairing result; when the number of space division multiplexing layers corresponding to the current pairing result is equal to a preset layer number threshold, determining the current pairing result as a pairing result, and updating the target set as: other candidate paired UEs than the candidate paired UE in the current paired result; when the number of space division multiplexing layers corresponding to the current pairing result is smaller than a preset layer number threshold, updating the current pairing result as follows: the target UE, the first candidate UE, and the second candidate UE, and update the current interference tolerance set as: interference tolerance of the target UE and the second candidate UE, interference tolerance of the first candidate UE and the second candidate UE; and outputting at least one pairing result until the candidate paired UE does not exist in the target set. For example, as shown in fig. 5, the processing unit 120 may be used to perform S501.

Optionally, the determining unit 110 is further configured to determine a target beam of the target UE; the target beam is an SRS beam with Reference Signal Received Power (RSRP) value larger than or equal to a preset RSRP value in a plurality of SRS beams of the channel sounding reference signals of the target UE; for example, as shown in fig. 6, the determination unit 110 may be used to perform S601.

The determining unit 110 is further configured to determine a first RSRP value of the first candidate UE on the target beam; for example, as shown in fig. 6, the determination unit 110 may be used to perform S602.

The determining unit 110 is further configured to determine a difference between the RSRP value of the target beam and the first RSRP value as an interference tolerance of the target UE and the first candidate UE. For example, as shown in fig. 6, the determination unit 110 may be used to perform S603.

Optionally, the determining unit 110 is further configured to determine at least one scheduling slot corresponding to at least one pairing result one-to-one; and one scheduling time slot is used for transmitting data to be transmitted of the candidate paired UE in one pairing result. For example, as shown in fig. 7, the determination unit 110 may be used to perform S701.

Optionally, the UE pairing device further includes: a transmitting unit 130.

A determining unit 110, configured to determine a third set among the plurality of candidate paired UEs; the third set comprises candidate paired UEs of which the data types to be transmitted are not preset data types; for example, as shown in fig. 9, the determination unit 110 may be used to perform S801.

A sending unit 130, configured to transmit data to be transmitted of the candidate paired UEs in the third set according to a preset manner; the preset mode includes a single user multiple input multiple output mode. For example, as shown in fig. 9, the transmitting unit 130 may be used to perform S802.

In the case of implementing the functions of the integrated modules in the form of hardware, the embodiment of the invention provides a schematic structural diagram of the base station. The base station is configured to perform the UE pairing method performed by the base station in the foregoing embodiment. As shown in fig. 11, the base station 90 includes a processor 901, a memory 902, and a bus 903. The processor 901 and the memory 902 may be connected by a bus 903.

Processor 901 is a control center of a base station, and may be one processor or a collective term of a plurality of processing elements. For example, the processor 901 may be a general-purpose central processing unit (central processing unit, CPU), or may be another general-purpose processor. Wherein the general purpose processor may be a microprocessor or any conventional processor or the like.

As one example, processor 901 may include one or more CPUs, such as CPU0 and CPU 1 shown in fig. 11.

The memory 902 may be, but is not limited to, read-only memory (ROM) or other type of static storage device that can store static information and instructions, random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, as well as electrically erasable programmable read-only memory (EEPROM), magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

As a possible implementation, the memory 902 may exist separately from the processor 901, and the memory 902 may be connected to the processor 901 by a bus 903 for storing instructions or program code. The UE pairing method provided by the embodiment of the present invention can be implemented when the processor 901 invokes and executes instructions or program codes stored in the memory 902.

In another possible implementation, the memory 902 may also be integrated with the processor 901.

Bus 903 may be an industry standard architecture (Industry Standard Architecture, ISA) bus, a peripheral component interconnect (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 11, but not only one bus or one type of bus.

It should be noted that the structure shown in fig. 11 does not constitute a limitation of the base station 90. In addition to the components shown in fig. 11, the base station 90 may include more or fewer components than shown in fig. 11, or may combine certain components, or may have a different arrangement of components.

As an example, in connection with fig. 10, the determining unit 110, the processing unit 120, and the transmitting unit 130 in the ue pairing device realize the same functions as those of the processor 901 in fig. 11.

Optionally, as shown in fig. 11, the base station provided in the embodiment of the present invention may further include a communication interface 904.

A communication interface 904 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 904 may include a receiving unit for receiving data and a transmitting unit for transmitting data.

In one design, the communication interface may also be integrated into the processor in the base station provided by the embodiments of the present invention.

Fig. 12 shows another hardware configuration of a base station in the embodiment of the present invention. As shown in fig. 12, the base station 100 may include a processor 1001 and a communication interface 1002. The processor 1001 is coupled to a communication interface 1002.

The function of the processor 1001 may be as described above with reference to the processor 901. The processor 1001 also has a memory function, and the function of the memory 902 can be referred to.

The communication interface 1002 is for providing data to the processor 1001. The communication interface 1002 may be an internal interface of the base station or an external interface of the base station (corresponding to the communication interface 904).

It should be noted that the structure shown in fig. 12 does not constitute a limitation of the base station, and the base station 100 may include more or less components than those shown in fig. 12, or may combine some components, or may have a different arrangement of components.

From the above description of embodiments, it will be apparent to those skilled in the art that the foregoing functional unit divisions are merely illustrative for convenience and brevity of description. In practical applications, the above-mentioned function allocation may be performed by different functional units, i.e. the internal structure of the device is divided into different functional units, as needed, to perform all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.

The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores instructions, when the computer executes the instructions, the computer executes each step in the method flow shown in the method embodiment.

Embodiments of the present invention provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the UE pairing method in the method embodiments described above.

The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: electrical connections having one or more wires, portable computer diskette, hard disk. Random access Memory (Random Access Memory, RAM), read-Only Memory (ROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), registers, hard disk, optical fiber, portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium suitable for use by a person or persons of skill in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuit, ASIC). In embodiments of the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

Since the apparatus, the device computer readable storage medium, and the computer program product in the embodiments of the present invention can be applied to the above-mentioned method, the technical effects that can be obtained by the apparatus, the device computer readable storage medium, and the computer program product can also refer to the above-mentioned method embodiments, and the embodiments of the present invention are not described herein again.

The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the present invention is not limited thereto, but any changes or substitutions within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A method for pairing user equipment UE, comprising:

determining a plurality of data characteristic information corresponding to the candidate paired UEs one by one; the data characteristic information comprises a data type to be transmitted and a data quantity to be transmitted of a candidate paired UE;

determining a first set and a second set in the candidate paired UEs according to the data characteristic information of each candidate paired UE; the first set comprises candidate paired UE with a data type to be transmitted being a preset data type and the data amount to be transmitted being greater than or equal to a preset data amount threshold; the second set comprises candidate paired UEs of which the data types to be transmitted are the preset data types and the data amounts to be transmitted are smaller than the preset data amount threshold;

Pairing the candidate paired UEs in the target set to obtain at least one pairing result; the target set is a first set or a second set; the paired UE in the at least one paired result is the UE in the target set;

the pairing of the candidate paired UEs in the target set to obtain at least one pairing result includes:

when the interference tolerance less than or equal to a preset tolerance threshold exists in the current interference tolerance set, updating the current pairing result to be: the target UE and a second candidate UE, and update the current set of interference tolerances as: interference tolerance of the target UE and the second candidate UE; the second candidate UE is any candidate paired UE except the target UE and the first candidate UE in the target set;

When the interference tolerance less than or equal to the preset tolerance threshold does not exist in the current interference tolerance set, determining the space division multiplexing layer number corresponding to the current pairing result;

when the number of space division multiplexing layers corresponding to the current pairing result is equal to a preset layer number threshold, determining the current pairing result as a pairing result, and updating the target set as: other candidate paired UEs except the candidate paired UE in the current paired result;

when the number of space division multiplexing layers corresponding to the current pairing result is smaller than the preset layer number threshold, updating the current pairing result as follows: the target UE, the first candidate UE, and the second candidate UE, and update the current interference tolerance set as: interference tolerance of the target UE and the second candidate UE, interference tolerance of the first candidate UE and the second candidate UE;

and outputting the at least one pairing result until the candidate paired UE does not exist in the target set.

2. The UE pairing method according to claim 1, further comprising, before the determining a plurality of data characteristic information corresponding to a plurality of candidate paired UEs one by one:

Determining a plurality of channel quality parameters corresponding to a plurality of UE to be scheduled one by one; each channel quality parameter comprises a signal-to-interference-plus-noise ratio (SINR) value and a Channel Quality Indication (CQI) value of the UE to be scheduled corresponding to each channel quality parameter;

determining to-be-scheduled UE meeting a first preset condition in the plurality of to-be-scheduled UE as the plurality of candidate paired UE; the preset condition is that the SINR value is greater than or equal to a preset SINR threshold value and/or the CQI value is greater than or equal to a preset CQI threshold value.

3. The UE pairing method according to claim 1, further comprising:

determining a target beam of the target UE; the target beam is an SRS beam with Reference Signal Received Power (RSRP) value larger than or equal to a preset RSRP value in a plurality of SRS beams of the channel sounding reference signals of the target UE;

determining a first RSRP value of the first candidate UE at the target beam;

and determining the difference between the RSRP value of the target beam and the first RSRP value as an interference tolerance of the target UE and the first candidate UE.

4. A UE pairing method according to any one of claims 1-3, further comprising, after obtaining at least one pairing result:

Determining at least one scheduling time slot corresponding to the at least one pairing result one by one; and one scheduling time slot is used for transmitting data to be transmitted of the candidate paired UE in one pairing result.

5. The UE pairing method according to claim 1, further comprising:

determining a third set among the plurality of candidate paired UEs; the third set comprises candidate paired UEs of which the data types to be transmitted are not the preset data types;

transmitting data to be transmitted of candidate paired UEs in the third set in a preset manner; the preset mode comprises a single-user multiple-input multiple-output mode.

6. A user equipment, UE, pairing apparatus, comprising: a determination unit and a processing unit;

the determining unit is used for determining a plurality of data characteristic information which are in one-to-one correspondence with a plurality of candidate paired UEs; the data characteristic information comprises a data type to be transmitted and a data quantity to be transmitted of a candidate paired UE;

the determining unit is further configured to determine a first set and a second set from the plurality of candidate paired UEs according to the data feature information of each candidate paired UE; the first set comprises candidate paired UE with a data type to be transmitted being a preset data type and the data amount to be transmitted being greater than or equal to a preset data amount threshold; the second set comprises candidate paired UEs of which the data types to be transmitted are the preset data types and the data amounts to be transmitted are smaller than the preset data amount threshold;

The processing unit is used for pairing the candidate pairing UE in the target set to obtain at least one pairing result; the target set is a first set or a second set; the paired UE in the at least one paired result is the UE in the target set;

7. The UE pairing apparatus according to claim 6, wherein,

the determining unit is further configured to determine a plurality of channel quality parameters corresponding to the plurality of UEs to be scheduled one by one; each channel quality parameter comprises a signal-to-interference-plus-noise ratio (SINR) value and a Channel Quality Indication (CQI) value of the UE to be scheduled corresponding to each channel quality parameter;

The determining unit is further configured to determine, as the plurality of candidate paired UEs, a UE to be scheduled, which satisfies a first preset condition, from the plurality of UEs to be scheduled; the preset condition is that the SINR value is greater than or equal to a preset SINR threshold value and/or the CQI value is greater than or equal to a preset CQI threshold value.

8. The UE pairing apparatus according to claim 6, wherein,

the determining unit is further configured to determine a target beam of the target UE; the target beam is an SRS beam with Reference Signal Received Power (RSRP) value larger than or equal to a preset RSRP value in a plurality of SRS beams of the channel sounding reference signals of the target UE;

the determining unit is further configured to determine a first RSRP value of the first candidate UE at the target beam;

the determining unit is further configured to determine a difference between an RSRP value of the target beam and the first RSRP value as an interference tolerance of the target UE and the first candidate UE.

9. The UE pairing apparatus according to any one of claims 6-8,

the determining unit is further configured to determine at least one scheduling time slot corresponding to the at least one pairing result one to one; and one scheduling time slot is used for transmitting data to be transmitted of the candidate paired UE in one pairing result.

10. The UE pairing apparatus of claim 6, further comprising: transmitting unit

The determining unit is further configured to determine a third set among the plurality of candidate paired UEs; the third set comprises candidate paired UEs of which the data types to be transmitted are not the preset data types;

the sending unit is configured to transmit data to be transmitted of the candidate paired UEs in the third set in a preset manner; the preset mode comprises a single-user multiple-input multiple-output mode.

11. A UE pairing device, comprising a memory and a processor; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus; the processor executes the computer-executable instructions stored by the memory to cause the UE pairing device to perform the UE pairing method of any one of claims 1-5 when the UE pairing device is operating.

12. A computer-readable storage medium comprising computer-executable instructions that, when run on a computer, cause the computer to perform the UE pairing method according to any one of claims 1-5.