CN116133000B - Space division multiplexing method, apparatus, computer device and storage medium - Google Patents

Space division multiplexing method, apparatus, computer device and storage medium Download PDF

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CN116133000B
CN116133000B CN202211668236.3A CN202211668236A CN116133000B CN 116133000 B CN116133000 B CN 116133000B CN 202211668236 A CN202211668236 A CN 202211668236A CN 116133000 B CN116133000 B CN 116133000B
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pairing
user terminals
group
user terminal
uplink
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CN116133000A (en
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王沛
张现周
王转莉
白梦洁
刘海涛
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Shenzhen Lingchuang Xingtong Technology Co ltd
Kingsignal Technology Co Ltd
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Shenzhen Lingchuang Xingtong Technology Co ltd
Kingsignal Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/50—Secure pairing of devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application relates to a space division multiplexing method, a space division multiplexing device, computer equipment and a storage medium. The method comprises the following steps: grouping the user terminals according to the power of the sounding reference signal transmitted by the user terminals to obtain a user terminal group; selecting the user terminals meeting the pairing conditions from the user terminals of the user terminal group, and putting the user terminals into corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition; pairing the user terminals in each key queue to obtain at least one pairing group; and carrying out resource allocation on the user terminals in each pairing group. By adopting the method, the data throughput of communication can be improved.

Description

Space division multiplexing method, apparatus, computer device and storage medium
Technical Field
The present application relates to the field of communications technologies, and in particular, to a space division multiplexing method, a device, a computer device, and a storage medium.
Background
With the high-speed development of society and economy, people have higher requirements on the quality and speed of communication, modern life of people can not be separated from communication between buildings, and for the special scene, when a 5G base station is networked in the building, a cell merging technology is mainly adopted to merge a plurality of physical cells into a logic cell, downlink data of the base station can be selectively transmitted in a plurality of RRUs (Remote Radio Unit, remote radio units), and uplink data can be selectively received through the plurality of RRUs. Although reselection and handover frequency etc. of the user terminal in the network are reduced to some extent. However, this networking method inevitably brings about a problem of low data throughput.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a method, apparatus, computer device, and computer readable storage medium for spatial multiplexing that can improve data throughput.
In a first aspect, the present application provides a space division multiplexing method, which is applied to a base station; the method comprises the following steps:
grouping the user terminals according to the power of the sounding reference signal transmitted by the user terminals to obtain a user terminal group;
selecting the user terminals meeting the pairing conditions from the user terminals of the user terminal group, and putting the user terminals into corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition;
pairing the user terminals in each key queue to obtain at least one pairing group;
and carrying out resource allocation on the user terminals in each pairing group.
In one embodiment, the grouping the ue according to the sounding reference signal power transmitted by the ue, to obtain a ue group includes:
selecting the maximum sounding reference signal power from the sounding reference signal power corresponding to the user terminal;
taking the remote radio unit corresponding to the maximum sounding reference signal power as the remote radio unit of the user terminal; the remote radio unit belongs to the base station;
And combining the user terminals corresponding to the same remote radio units to obtain a user terminal group.
In one embodiment, the allocating resources to the user terminals in each pairing group includes:
determining user terminals in each pairing group;
determining remote radio units corresponding to the user terminals in the pairing groups;
and carrying out resource allocation on the user terminals in each pairing group according to the remote radio unit.
In one embodiment, the method further comprises:
determining a downlink data quantity threshold and a first signal-to-noise ratio threshold related to downlink sounding reference signal power;
generating a downlink pairing condition according to the downlink data volume threshold and the first signal-to-noise ratio threshold;
determining an uplink data quantity threshold and a second signal-to-noise ratio threshold related to uplink sounding reference signal power;
and generating an uplink pairing condition according to the uplink data volume threshold and the second signal to noise ratio threshold.
In one embodiment, the key queues include a downlink key queue and an uplink key queue; the selecting the user terminal meeting the pairing condition to be put into the corresponding key queue comprises the following steps:
Before the user terminal receives a downlink data packet, when the downlink data volume to be sent is larger than the downlink data volume threshold and the signal to noise ratio of the user terminal about downlink sounding reference signal power is larger than the first signal to noise ratio threshold, the user terminal is put into a corresponding downlink key queue;
before the user terminal sends the uplink data packet, when the data volume to be sent in the uplink is larger than the uplink data volume threshold and the signal to noise ratio of the user terminal about uplink sounding reference signal power is larger than the second signal to noise ratio threshold, the user terminal is put into a corresponding uplink key queue.
In one embodiment, the pairing group includes a first pairing group and a second pairing group; pairing the user terminals in each key queue to obtain at least one pairing group, wherein the pairing comprises the following steps:
obtaining the maximum number of space division layers; the maximum number of empty layers is used for determining the number of user terminals in the pairing group;
when the maximum space layering number is greater than or equal to the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form the first pairing group until the user terminals in the key queues are traversed;
And when the maximum number of space division layers is smaller than the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form the second pairing group according to the maximum number of space division layers until the user terminals in the key queues are traversed.
In a second aspect, the present application further provides a space division multiplexing device. The device comprises:
the grouping module is used for grouping the user terminals according to the sounding reference signal power transmitted by the user terminals to obtain a user terminal group;
a queue determining module, configured to select, from among the user terminals in the user terminal group, the user terminals that satisfy a pairing condition, and put the user terminals in corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition;
the pairing module is used for pairing the user terminals in each key queue to obtain at least one pairing group;
and the resource allocation module is used for allocating resources to the user terminals in each pairing group.
In one embodiment, the grouping module is further configured to select a maximum sounding reference signal power from sounding reference signal powers corresponding to the ue; taking the remote radio unit corresponding to the maximum sounding reference signal power as the remote radio unit of the user terminal; the remote radio unit belongs to the base station; and combining the user terminals corresponding to the same remote radio units to obtain a user terminal group.
In one embodiment, the resource allocation module is further configured to determine user terminals in each of the pairing groups; determining remote radio units corresponding to the user terminals in the pairing groups; and carrying out resource allocation on the user terminals in each pairing group according to the remote radio unit.
In one embodiment, the apparatus further comprises:
the generation module is used for determining a downlink data quantity threshold and a first signal-to-noise ratio threshold related to downlink sounding reference signal power; generating a downlink pairing condition according to the downlink data volume threshold and the first signal-to-noise ratio threshold; determining an uplink data quantity threshold and a second signal-to-noise ratio threshold related to uplink sounding reference signal power; and generating an uplink pairing condition according to the uplink data volume threshold and the second signal to noise ratio threshold.
In one embodiment, the queue determining module is further configured to, before the ue receives the downlink data packet, place the ue in a corresponding downlink key queue when an amount of data to be sent in a downlink is greater than the downlink data amount threshold and a signal-to-noise ratio of the ue with respect to downlink sounding reference signal power is greater than the first signal-to-noise ratio threshold; before the user terminal sends the uplink data packet, when the data volume to be sent in the uplink is larger than the uplink data volume threshold and the signal to noise ratio of the user terminal about uplink sounding reference signal power is larger than the second signal to noise ratio threshold, the user terminal is put into a corresponding uplink key queue.
In one embodiment, the pairing group includes a first pairing group and a second pairing group; the pairing module is also used for acquiring the maximum space division number; the maximum number of empty layers is used for determining the number of user terminals in the pairing group; when the maximum space layering number is greater than or equal to the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form the first pairing group until the user terminals in the key queues are traversed; and when the maximum number of space division layers is smaller than the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form the second pairing group according to the maximum number of space division layers until the user terminals in the key queues are traversed.
In a third aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor implementing the steps of the above method when the processor executes the computer program.
In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the above method.
In a fifth aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of the above method.
According to the space division multiplexing method, the space division multiplexing device, the computer equipment and the storage medium, the user terminals are grouped according to the power of the detection reference signals transmitted by the user terminals, so that a user terminal group is obtained; grouping the user terminals into an optimal user terminal group, and selecting the user terminals meeting the pairing conditions from the user terminals of the user terminal group to be put into corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition; pairing the user terminals in each key queue to obtain at least one pairing group; and carrying out resource allocation on the user terminals in each pairing group. By grouping and pairing the user terminals, the method for uniformly distributing the resources to the user terminals in the pairing group is realized, and the data throughput in the communication process is effectively improved.
Drawings
FIG. 1 is a diagram of an application environment for a spatial multiplexing method in one embodiment;
FIG. 2 is a flow chart of a method of spatial multiplexing according to one embodiment;
FIG. 3 is a schematic diagram of an intra-5G building networking in accordance with one embodiment;
FIG. 4 is a diagram of determining a user terminal group in one embodiment;
FIG. 5 is a schematic diagram of determining a pairing group in one embodiment;
FIG. 6 is a flowchart illustrating a resource allocation procedure according to another embodiment;
FIG. 7 is a schematic diagram of determining a user terminal group in another embodiment;
fig. 8 is a block diagram of a structure of a spatial multiplexing apparatus according to an embodiment;
fig. 9 is a block diagram of a structure of a spatial multiplexing apparatus according to an embodiment;
fig. 10 is an internal structural view of a computer device in one embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The space division multiplexing method provided by the embodiment of the application can be applied to an application environment shown in figure 1. Wherein the terminal 102 communicates with the base station 104 and the server 106 via a network. The data storage system may store data that the server 106 needs to process. The data storage system may be integrated on the server 106 or may be located on a cloud or other network server. The present application is illustrated with respect to the execution of the base station 104.
The base station 104 groups the user terminals according to the sounding reference signal power transmitted by the user terminals to obtain a user terminal group; the base station 104 selects user terminals meeting the pairing conditions from the user terminals of the user terminal group and puts the user terminals into corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition; the base station 104 pairs the user terminals in each key queue to obtain at least one pairing group; the base station 104 allocates resources to the user terminals in each pairing group.
The terminal 102 may be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, internet of things devices, and portable wearable devices, where the internet of things devices may be smart speakers, smart televisions, smart air conditioners, smart vehicle devices, and the like. The portable wearable device may be a smart watch, smart bracelet, headset, or the like. The server 106 may be implemented as a stand-alone server or as a cluster of servers.
In one embodiment, as shown in fig. 2, a space division multiplexing method is provided, and the method is applied to the base station 104 in fig. 1 for illustration, and includes the following steps:
S202, grouping the user terminals according to the power of the sounding reference signal transmitted by the user terminals to obtain a user terminal group.
The UE (User Equipment) may refer to a UE (User Equipment) end. The sounding reference signal power refers to SRSP (Sounding Reference Signal Power ). A user terminal group may refer to a group consisting of one to a plurality of user terminals.
Specifically, selecting the maximum sounding reference signal power from the sounding reference signal power corresponding to the user terminal; taking a remote radio unit corresponding to the maximum sounding reference signal power as a remote radio unit of the user terminal; the remote radio unit belongs to a base station; and combining the user terminals corresponding to the same remote radio units to obtain a user terminal group.
The remote radio unit refers to RRU (Remote Radio Unit) in the base station. FIG. 3 is a schematic diagram of an intra-5G building networking in accordance with one embodiment; as shown in fig. 3, the main networking architecture of the base station of the present application may be composed of a 5G core network, a CU (Centralized Unit) and a DU (Distributed Unit), and a plurality of RRUs.
For example, fig. 4 is a schematic diagram illustrating determining a user terminal group in one embodiment; as shown in fig. 4, the base station has 2 RRUs, that is, RRU1 and RRU2 are assumed, there are 4 user terminals currently, that is, UE1, UE2, UE3 and UE4, and because there are 2 RRUs, each user terminal corresponds to one RRU and has one sounding reference signal power, that is, the sounding reference signal powers of each user terminal corresponding to RRU1 and RRU2 are assumed to be: UE1: SRSP1, SRSP2; UE2: SRSP3, SRSP4;
UE3: SRSP5, SRSP6; UE4: SRSP7, SRSP8; SRSP1< SRSP2, SRSP3> SRSP4, SRSP5< SRSP6, SRSP7> SRSP8, SRSP1 is selected from UE1, SRSP3 is selected from UE2, SRSP6 is selected from UE3, SRSP7 is selected from UE4, and according to the corresponding relation between the power of the sounding reference signal and the RRU, the RRU2 is taken as the RRU of the UE1, the RRU1 is taken as the RRU of the UE2, the RRU2 is taken as the RRU of the UE3, and the RRU1 is taken as the RRU of the UE4, so that the user terminals under the RRU1 are provided with the UE2 and the UE4; the user terminals under RRU2 have UE1, UE3, i.e. there are two user terminal groups { UE2, UE4} and { UE1, UE3} respectively.
S204, selecting user terminals meeting the pairing conditions from the user terminals of the user terminal group, and putting the user terminals into corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition.
The pairing condition may refer to a condition that the user terminal participates in pairing. The downlink pairing condition may refer to a pairing condition of the user terminal in the downlink scenario. The uplink pairing condition may refer to a pairing condition of the user terminal in the data uplink scenario. The key queue may refer to a user terminal for storing that the pairing condition is satisfied.
In one embodiment, a base station determines a downlink data amount threshold and a first signal to noise ratio threshold for downlink sounding reference signal power; generating a downlink pairing condition according to the downlink data quantity threshold and the first signal to noise ratio threshold; determining an uplink data quantity threshold and a second signal-to-noise ratio threshold related to uplink sounding reference signal power; and generating an uplink pairing condition according to the uplink data quantity threshold and the second signal to noise ratio threshold.
The downlink data amount threshold may refer to a threshold for determining the amount of data to be sent in the downlink. The amount of data to be sent in the downlink may refer to the amount of data of the downlink data packet to be sent currently by the base station. The first signal-to-noise ratio threshold with respect to the downlink sounding reference signal power may refer to a threshold value of a signal-to-noise ratio with respect to the sounding reference signal power in a downlink scenario, i.e. the first signal-to-noise ratio threshold may refer to a threshold value of a signal-to-noise ratio with respect to the sounding reference signal power in a downlink scenario. The signal-to-noise ratio with respect to the sounding reference signal power may be a ratio of the sounding reference signal power to the noise power, for example, the signal-to-noise ratio of the sounding reference signal power may be calculated as:
the uplink data amount threshold may refer to a threshold for determining an amount of data to be transmitted in the uplink. The data amount to be sent in the uplink may refer to the data amount of the uplink data packet to be sent currently by the base station. The second snr threshold with respect to the uplink sounding reference signal power may refer to a threshold value of the snr with respect to the sounding reference signal power in the uplink scenario, i.e. the second snr threshold value may refer to a threshold value of the snr with respect to the sounding reference signal power in the uplink scenario.
In one embodiment, selecting the ue satisfying the pairing condition to place in the corresponding key queue includes placing the ue in the corresponding downlink key queue when the amount of data to be sent in the downlink is greater than a downlink data amount threshold and the signal-to-noise ratio of the ue with respect to the downlink sounding reference signal power is greater than a first signal-to-noise ratio threshold before the ue receives the downlink data packet; before the user terminal sends the uplink data packet, when the data volume to be sent in the uplink is larger than the uplink data volume threshold and the signal to noise ratio of the user terminal about the uplink sounding reference signal power is larger than the second signal to noise ratio threshold, the user terminal is put into the corresponding uplink key queue.
The downlink data packet may refer to a data packet transmitted in a downlink scenario. The uplink data packet may refer to a data packet transmitted in an uplink scenario.
S206, pairing the user terminals in each key queue to obtain at least one pairing group.
The pairing group may refer to a group formed by user terminals, and the base station may perform uniform resource allocation on the user terminals in the pairing group. The pairing group includes a first pairing group and a second pairing group, the first pairing group and the second pairing group being different pairing groups.
Specifically, the maximum number of space division layers is obtained; the maximum number of empty layers is used for determining the number of user terminals in the pairing group; when the maximum space layering number is greater than or equal to the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form a first pairing group until the user terminals in the key queues are traversed; and when the maximum number of the space division layers is smaller than the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form a second pairing group according to the maximum number of the space division layers until the user terminals in the key queues are traversed.
The maximum number of spatial layers can be used for determining the number of user terminals in the pairing group, the maximum number of spatial layers comprises an uplink maximum number of spatial layers and a downlink maximum number of spatial layers, the uplink maximum number of spatial layers can be used in an uplink scene, and the downlink maximum number of spatial layers can be used in a downlink scene.
In one embodiment, an uplink maximum number of spatial layers is obtained; the uplink maximum empty layering number is used for determining the number of user terminals in the pairing group; when the maximum uplink space layering number is greater than or equal to the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form a first pairing group until the user terminals in the key queues are traversed; and when the uplink maximum space division number is smaller than the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form a second pairing group according to the uplink maximum space division number until the user terminals in the key queues are traversed.
In one embodiment, a downlink maximum number of spatial layers is obtained; the downlink maximum number of empty layers is used for determining the number of user terminals in the pairing group; when the number of downlink maximum space layering is greater than or equal to the number of user terminal groups, sequentially selecting user terminals from each key queue to form a first pairing group until the user terminals in each key queue are traversed; and when the downlink maximum number of the space-time layers is smaller than the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form a second pairing group according to the downlink maximum number of the space-time layers until the user terminals in the key queues are traversed.
For example, if the maximum number of spatial layers is 6, the base station has 5 RRUs, that is, the number of user terminal groups is 5, and since 6>5,5 user terminal groups have key queues corresponding to each other, key queue 1, key queue 2, key queue 3, key queue 4 and key queue 5, 1 user terminal is sequentially selected from key queue 1 to key queue 5, and if 2 user terminals are in each key queue, two first pairing groups are generated, and 5 user terminals are in each first pairing group; if the maximum number of spatial layers is 4, as other cases are as shown above, according to 5>4, sequentially selecting 1 user terminal from the key queue 1 to the key queue 5 according to the maximum number of spatial layers, obtaining first two second pairing groups with the number of 4 user terminals, and finally obtaining a second pairing group with the number of 2 user terminals.
S208, performing resource allocation on the user terminals in each pairing group.
In the space division multiplexing method, the user terminals are grouped according to the power of the sounding reference signal transmitted by the user terminals, so that a user terminal group is obtained; grouping the user terminals into an optimal user terminal group, and selecting the user terminals meeting the pairing conditions from the user terminals of the user terminal group to be put into corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition; pairing the user terminals in each key queue to obtain at least one pairing group; and carrying out resource allocation on the user terminals in each pairing group. By grouping and pairing the user terminals, the method for uniformly distributing the resources to the user terminals in the pairing group is realized, and the data throughput in the communication process is effectively improved.
In one embodiment, as shown in fig. 6, the resource allocation step includes:
s602, determining the user terminals in each pairing group.
Specifically, the base station may determine each pairing group first in response to the resource allocation instruction, and then sequentially determine the user terminals in each pairing group.
S604, determining remote radio units corresponding to the user terminals in each pairing group.
Specifically, the base station may sequentially determine remote radio units corresponding to the user terminals in each pairing group in response to a determination instruction of the remote radio units.
S606, the resource allocation is carried out on the user terminals in each pairing group according to the remote radio unit.
Specifically, the base station may acquire network resources, and allocate the network resources to the user terminals in each pairing group by taking the pairing group as a unit according to the remote radio unit.
Wherein the network resource may be a time domain resource or a frequency domain resource, etc.
In this embodiment, the remote radio units corresponding to the user terminals in each pairing group are determined by determining the user terminals in each pairing group, and the user terminals in each pairing group are allocated with resources according to the remote radio units.
As an example, the present embodiment is as follows:
the micro-station distributed networking can be adopted in the building, each room is provided with a low-power RRU, and a single RRU forms a physical cell and ensures signal coverage in the room. The inter-cells have little mutual interference due to physical isolation. And the RRUs are connected to the DU and then to the 5G core network to complete 5G networking. Next, using a cell combining technique, the multiple cells are combined into one logical cell, and the time domain resource, the frequency domain resource, etc. of the shared cell PCI (Physical Cell Identifier ) are controlled by the DU to receive and transmit the message transmitted by the PDCCH (Physical Downlink Control Channel )/PDSCH (Physical Downlink Shared Channel, physical downlink shared channel)/PUSCH (Physical Uplink Shared Channel ) channel by each RRU.
The UE under each RRU may be divided into a UE group (user terminal group), when there are N RRUs in a cell, the online UE may be divided into N UE groups, after the UE is accessed, the base station may receive the measured value of SRS power of each RRU through SRS, and select the RRU with the largest RSRP as the UE group of the UE, and periodically maintain the UE group information.
FIG. 7 is a schematic diagram of determining a user terminal group in another embodiment; as shown in fig. 7, considering various service characteristics of the UE, the base station performs null allocation, for only the normal DRB (Data Radio Bearer ) service, and for the user with large data size, does not consider SRB (Signal Radio Bearer ), does not consider QOS (Quality of Service ) class 5QI1 (5G QoS Identifier,5G quality of service identifier) as DRB of the VONR (Voice over New Radio,5G network target voice solution) service, and does not distinguish MAC HARQ (Hybrid Automatic Repeat reQuest ) new transmission and retransmission. The base station divides each UEgroup into two queues, wherein the first queue (key queue) is a common DRB service, the second queue (other queues) is other services, and the base station is put into the queues of the UEgroup according to the service type and priority before pairing each time.
In TDD (time division duplex), SINR (Signal to Interference plus Noise Ratio, signal to noise ratio) thresholds and traffic demand thresholds (including a downlink data amount threshold and an uplink data amount threshold) of an uplink and downlink channel with respect to SRS are set, respectively, using channel reciprocity. And during pairing, sequentially selecting a first SRS SINR meeting a pairing threshold from a first queue of each group, and placing the UE with the business volume requirement meeting the threshold into the pairing group MGroup to allocate the same time-frequency resource for the UE. The UE within MGroup may also trigger SU-MIMO (Single-User Multiple-input Multiple-Output) according to the radio channel quality. FIG. 5 is a schematic diagram of determining a pairing group in one embodiment; the schematic diagram shown in fig. 5 is applicable to both downstream and upstream scenarios.
For the UE in the MGroup, in the downlink direction, the PDCCH and the PDSCH are only sent by the RRU corresponding to the UEgroup of the UE, and in the uplink direction, the PUSCH is also only received by the RRU corresponding to the UEgroup of the UE. The embodiment can increase the space multiplexing transmission layer and improve the throughput of the wireless air interface so as to achieve the sum of the capacities of all physical cells before combination.
The detailed application scenario may be as follows:
1. in the downlink scenario:
1. The network manager sets a UE pairing downlink data quantity threshold DlBoThreshold; the network manager automatically configures the number of the cell UEgroups to be N according to the number of the cell RRUs, and the number of the cell UEgroups corresponds to the number of the cell UEgroups one by one; the network manager configures the downlink maximum space division layer number DlSDAMaxLayer of the cell; the network manager configures a cell downlink pairing threshold DlSDMA (time division multiplexing) threshold, and configures a cell downlink maximum pairing group number NumDlMGroup;
2, the TDD cell is successfully established, and the UE RRC connection is successfully established;
3. and the base station receives N SRS RSRP values at each SRS transmission period point of the UE, selects the RRU with the largest RSRP as the group of the UE, and numbers the RRU as UEGroup_i, wherein 0< = i < N. In this way, all UEs in the cell can be put into the corresponding UE group_i;
4. after a base station selects to schedule UE, in UEGroup_i, placing UE of which the downlink data volume to be transmitted is greater than DlBoThreshold, DRB is non-VONR, SRS SINR is greater than or equal to DlSDMA AThreshold into a first Queue (key Queue) queue_0, and placing other UE into queue_1 (other queues);
5. according to dlsdma amaxlyer configuration, if dlsdma amaxlyer > =n, the first UE is taken out from queue_0 in each UE group, a pairing group MGroup including N UEs is formed, and so on, until the UEs in queue_0 are traversed, numdl MGroup are obtained. If DlSDMA_xLayer < N, circularly taking out DlSDMA_xLayerUE from UEGroup_0 to UEGroup_N-1 to form a pairing group MGroup until the UE in the queue_0 is traversed to obtain NumDlMGroup MGroup;
Each UE in mgroup transmits PDCCH/PDSCH at RRU under its own UE group, respectively.
2. In the upstream scenario:
1. the network manager sets a UE pairing uplink data quantity threshold UlBsrThreshold; the network manager automatically configures the number of the cell UEgroups to be N according to the number of the cell RRUs, and the number of the cell UEgroups corresponds to the number of the cell UEgroups one by one; the network manager configures the maximum space division number UlSDAMaxLayer of the cell uplink; the network manager configures a cell uplink pairing threshold UlSDMA (space division multiple access) threshold, and configures a cell uplink maximum pairing group number NumUlMGroup;
2, the TDD cell is successfully established, and the UE RRC connection is successfully established;
3. and the base station receives N SRS RSRP values at each SRS transmission period point of the UE, selects the RRU with the largest RSRP as the group of the UE, and numbers the RRU as UEGroup_i, wherein 0< = i < N. In this way, all UEs in the cell can be put into the corresponding UE group_i;
4. after a base station selects to schedule UE, in a UEGroup_i, placing the UE of which the uplink data volume to be transmitted is larger than UlBsrThreshold, DRB is non-VONR, SRS SINR is larger than or equal to UlSDMA AThreshold in a first Queue Queue_0, and placing other UEs in Queue_1;
5. according to the ulsdma amaxlyer configuration, if ulsdma amaxlyer > =n, the first UE is sequentially taken out from queue_0 in each UE group, forming a pairing group MGroup containing N UEs, and so on, until after traversing the UEs in queue_0, numUlMGroup MGroup are obtained. If UlSDMA_Layer < N, circularly taking out UlSDMA_LayerUE from UEGroup_0 to UEGroup_N-1 to form a pairing group MGroup until traversing the UE in the Queue_0 to obtain NumUlMGroup MGroup;
And 6, each UE in the MGroup sends PDCCH and receives PUSCH at RRU under the respective UEgroup.
It should be understood that, although the steps in the flowcharts related to the above embodiments are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a space division multiplexing device for realizing the space division multiplexing method. The implementation of the solution provided by the apparatus is similar to the implementation described in the above method, so the specific limitation in one or more embodiments of the spatial multiplexing apparatus provided below may be referred to the limitation of the spatial multiplexing method hereinabove, and will not be described herein.
In one embodiment, as shown in fig. 8, there is provided a space division multiplexing device, including: a grouping module 802, a determination queue module 804, a pairing module 806, and a resource allocation module 808, wherein:
a grouping module 802, configured to group the user terminals according to the sounding reference signal power transmitted by the user terminals, so as to obtain a user terminal group;
a queue determining module 804, configured to select, from the user terminals in the user terminal group, the user terminals that meet the pairing condition and put the user terminals in the corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition;
a pairing module 806, configured to pair the user terminals in each key queue to obtain at least one pairing group;
and the resource allocation module 808 is configured to allocate resources to the user terminals in each pairing group.
In one embodiment, the grouping module 802 is further configured to select a maximum sounding reference signal power from sounding reference signal powers corresponding to the user terminals; taking a remote radio unit corresponding to the maximum sounding reference signal power as a remote radio unit of the user terminal; the remote radio unit belongs to a base station; and combining the user terminals corresponding to the same remote radio units to obtain a user terminal group.
In one embodiment, the resource allocation module 808 is further configured to determine user terminals in each pairing group; determining remote radio units corresponding to the user terminals in each pairing group; and carrying out resource allocation on the user terminals in each pairing group according to the remote radio unit.
In one embodiment, the queue determining module 804 is further configured to, before the ue receives the downlink data packet, place the ue into the corresponding downlink key queue when the amount of data to be sent in the downlink is greater than the downlink data amount threshold and the signal-to-noise ratio of the ue with respect to the downlink sounding reference signal power is greater than the first signal-to-noise ratio threshold; before the user terminal sends the uplink data packet, when the data volume to be sent in the uplink is larger than the uplink data volume threshold and the signal to noise ratio of the user terminal about the uplink sounding reference signal power is larger than the second signal to noise ratio threshold, the user terminal is put into the corresponding uplink key queue.
In one embodiment, the pairing group includes a first pairing group and a second pairing group; pairing module 806 is further configured to obtain a maximum number of spatial layers; the maximum number of empty layers is used for determining the number of user terminals in the pairing group; when the maximum space layering number is greater than or equal to the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form a first pairing group until the user terminals in the key queues are traversed; and when the maximum number of the space division layers is smaller than the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form a second pairing group according to the maximum number of the space division layers until the user terminals in the key queues are traversed.
In one embodiment, as shown in fig. 9, the space division multiplexing device further includes: a generation module 810, wherein:
a generating module 810, configured to determine a downlink data amount threshold and a first signal-to-noise ratio threshold related to downlink sounding reference signal power; generating a downlink pairing condition according to the downlink data quantity threshold and the first signal to noise ratio threshold; determining an uplink data quantity threshold and a second signal-to-noise ratio threshold related to uplink sounding reference signal power; and generating an uplink pairing condition according to the uplink data quantity threshold and the second signal to noise ratio threshold.
In the above embodiment, the ue is grouped according to the sounding reference signal power transmitted by the ue, so as to obtain the ue group; grouping the user terminals into an optimal user terminal group, and selecting the user terminals meeting the pairing conditions from the user terminals of the user terminal group to be put into corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition; pairing the user terminals in each key queue to obtain at least one pairing group; and carrying out resource allocation on the user terminals in each pairing group. By grouping and pairing the user terminals, the method for uniformly distributing the resources to the user terminals in the pairing group is realized, and the data throughput in the communication process is effectively improved.
The respective modules in the above-described space division multiplexing device may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a base station, and the internal structure of which may be as shown in fig. 10. The computer device includes a processor, a memory, an input/output interface, a communication interface, a display unit, and an input means. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a space division multiplexing method. The display unit of the computer equipment is used for forming a visual picture, and can be a display screen, a projection device or a virtual reality imaging device, wherein the display screen can be a liquid crystal display screen or an electronic ink display screen, the input device of the computer equipment can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on a shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in FIG. 10 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, a computer device is provided that includes a memory having a computer program stored therein and a processor that implements the above embodiments when the processor executes the computer program.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, implements the above embodiments.
In one embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, implements the embodiments described above.
It should be noted that, the user information (including but not limited to user equipment information, user personal information, etc.) and the data (including but not limited to data for analysis, stored data, presented data, etc.) related to the present application are information and data authorized by the user or sufficiently authorized by each party, and the collection, use and processing of the related data need to comply with the related laws and regulations and standards of the related country and region.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims (10)

1. A space division multiplexing method, characterized by being applied to a base station; the method comprises the following steps:
grouping the user terminals according to the power of the sounding reference signal transmitted by the user terminals to obtain a user terminal group;
selecting the user terminals meeting the pairing conditions from the user terminals of the user terminal group, and putting the user terminals into corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition;
Pairing the user terminals in each key queue to obtain at least one pairing group; the pairing group comprises a first pairing group and a second pairing group; pairing the user terminals in each key queue to obtain at least one pairing group, wherein the pairing comprises the following steps: obtaining the maximum number of space division layers; the maximum number of empty layers is used for determining the number of user terminals in the pairing group; when the maximum space layering number is greater than or equal to the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form the first pairing group until the user terminals in the key queues are traversed; when the maximum number of space division layers is smaller than the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form the second pairing group according to the maximum number of space division layers until the user terminals in the key queues are traversed;
and carrying out resource allocation on the user terminals in each pairing group.
2. The method of claim 1, wherein grouping the ues according to the sounding reference signal power transmitted by the ues to obtain a group of ues comprises:
Selecting the maximum sounding reference signal power from the sounding reference signal power corresponding to the user terminal;
taking the remote radio unit corresponding to the maximum sounding reference signal power as the remote radio unit of the user terminal; the remote radio unit belongs to the base station;
and combining the user terminals corresponding to the same remote radio units to obtain a user terminal group.
3. The method of claim 2, wherein the allocating resources to the user terminals in each of the pairing groups comprises:
determining user terminals in each pairing group;
determining remote radio units corresponding to the user terminals in the pairing groups;
and carrying out resource allocation on the user terminals in each pairing group according to the remote radio unit.
4. The method according to claim 1, wherein the method further comprises:
determining a downlink data quantity threshold and a first signal-to-noise ratio threshold related to downlink sounding reference signal power;
generating a downlink pairing condition according to the downlink data volume threshold and the first signal-to-noise ratio threshold;
determining an uplink data quantity threshold and a second signal-to-noise ratio threshold related to uplink sounding reference signal power;
And generating an uplink pairing condition according to the uplink data volume threshold and the second signal to noise ratio threshold.
5. The method of claim 4, wherein the critical queues include a downstream critical queue and an upstream critical queue; the selecting the user terminal meeting the pairing condition to be put into the corresponding key queue comprises the following steps:
before the user terminal receives a downlink data packet, when the downlink data volume to be sent is larger than the downlink data volume threshold and the signal to noise ratio of the user terminal about downlink sounding reference signal power is larger than the first signal to noise ratio threshold, the user terminal is put into a corresponding downlink key queue;
before the user terminal sends the uplink data packet, when the data volume to be sent in the uplink is larger than the uplink data volume threshold and the signal to noise ratio of the user terminal about uplink sounding reference signal power is larger than the second signal to noise ratio threshold, the user terminal is put into a corresponding uplink key queue.
6. The method of claim 1, wherein the maximum number of spatial layers comprises an uplink maximum number of spatial layers for use in an uplink scene and a downlink maximum number of spatial layers for use in a downlink scene.
7. The method according to claim 1, wherein the method further comprises: and uniformly distributing the user terminals of the first pairing group and uniformly distributing the user terminals of the second pairing group.
8. A space division multiplexing device, the device comprising:
the grouping module is used for grouping the user terminals according to the sounding reference signal power transmitted by the user terminals to obtain a user terminal group;
a queue determining module, configured to select, from among the user terminals in the user terminal group, the user terminals that satisfy a pairing condition, and put the user terminals in corresponding key queues; the pairing condition is a downlink pairing condition or an uplink pairing condition;
the pairing module is used for pairing the user terminals in each key queue to obtain at least one pairing group; the pairing group comprises a first pairing group and a second pairing group; pairing the user terminals in each key queue to obtain at least one pairing group, wherein the pairing comprises the following steps: obtaining the maximum number of space division layers; the maximum number of empty layers is used for determining the number of user terminals in the pairing group; when the maximum space layering number is greater than or equal to the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form the first pairing group until the user terminals in the key queues are traversed; when the maximum number of space division layers is smaller than the number of the user terminal groups, sequentially selecting the user terminals from the key queues to form the second pairing group according to the maximum number of space division layers until the user terminals in the key queues are traversed;
And the resource allocation module is used for allocating resources to the user terminals in each pairing group.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 7 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.
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