CN114584996B

CN114584996B - Interference optimization method based on service, network equipment and storage medium

Info

Publication number: CN114584996B
Application number: CN202210495635.8A
Authority: CN
Inventors: 王晓云; 邓伟; 孟令同; 江天明; 旷婧华
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-08-05
Anticipated expiration: 2042-05-09
Also published as: CN114584996A

Abstract

The application provides a service-based interference optimization method, network equipment and a storage medium, which relate to the technical field of mobile communication, and the method comprises the following steps: the method comprises the steps that a first network device sends first information to a second network device under the condition that a first service is activated, wherein the second network device is a network device which transmits a second service and generates interference on the first service, the first information is used for indicating the second network device to carry out interference optimization on a target beam which transmits the second service, and the priority of the second service is lower than that of the first service. According to the method and the device, under the condition that the first network equipment activates the first service with high priority, the first indication is sent to the second equipment to inform the second network equipment of carrying out interference optimization on the target beam for transmitting the second service with low priority, multi-antenna interference optimization based on the service is realized, cross-area interference of the second network equipment on the first service can be reduced or eliminated, and user experience of the service with high priority is improved.

Description

Interference optimization method based on service, network equipment and storage medium

Technical Field

The present application relates to the field of mobile communications technologies, and in particular, to a service-based interference optimization method, a network device, and a storage medium.

Background

A large-scale input and output (Massive MIMO) antenna technology of a fifth generation mobile communication (5G) system is a key technology for improving coverage and spectrum efficiency of the 5G system, and has many differences compared with a multi-antenna technology of a Long Term Evolution (LTE) system. Different from a Massive MIMO station type of an LTE system, which is generally used as a hotspot capacity supplement scheme, a 5G system uses the Massive MIMO station type for networking, so that changes in the 5 gmactive MIMO technology have a great influence on networking of the 5G network. The 5G system Massive MIMO technology effectively improves system coverage through the beam forming capability of a broadcast/control channel and the narrower beam forming capability of a service channel, but in a dense urban area, as the station spacing is smaller, the vertical dimension data transmission range of a large-scale antenna is larger, and more energy is transmitted to an adjacent cell in the upper half part of a beam (for example, the highest vertical dimension layer of a 64T base station is a fourth layer, and the highest vertical dimension layer of a 32T base station is a second layer), the cross-area coverage causes interference, and further the problem of user experience deterioration such as signaling congestion, call drop, bit error rate and the like is caused. Fig. 1 provides a schematic diagram of interference caused by handover coverage (uppermost beam) when masive MIMO base station networking is performed.

Aiming at the interference problem caused by coverage of Massive MIMO station type networking, a common solution is to perform adaptive modulation coding on a physical layer according to the interference intensity and reduce the interference by adjusting the number of layers of a vertical layer beam (for example, closing the highest layer of a vertical dimension). However, the above solution does not distinguish between the traffic types (i.e. the types of slices), i.e. the same interference optimization process is only performed for the interference level (e.g. SNR) whatever the traffic.

Disclosure of Invention

At least one embodiment of the present application provides a service-based interference optimization method, a network device, and a storage medium, which are used to implement service-based multi-antenna interference optimization.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a method for interference optimization based on a service, including:

the method comprises the steps that first network equipment sends first information to second network equipment under the condition that first service is activated, wherein the second network equipment is network equipment which transmits second service and generates interference on the first service, the first information is used for indicating the second network equipment to carry out interference optimization on a target beam which transmits the second service, and the priority of the second service is lower than that of the first service.

Optionally, before sending the first information, the method further includes:

and determining second network equipment which transmits the second service and generates interference on the first service.

Optionally, the determining a second network device that transmits a second service and interferes with a first service includes:

receiving a first measurement result of a first reference signal sent by a terminal aiming at least two network devices, wherein the at least two network devices comprise the first network device and at least one candidate network device;

selecting a second network device from candidate network devices for transmitting a second service according to first measurement results of the at least two network devices, wherein the second network device comprises at least one of a first candidate network device and a second candidate network device, and an absolute value of a difference value between the first measurement results of the first candidate network device and the first network device is smaller than a first threshold; the first measurement result of the second candidate network device is better than the first network device, and the difference between the first measurement result of the second candidate network device and the first measurement result of the first network device is greater than a second threshold.

Optionally, the first information further includes indication information of a target beam that the second network device interferes with the first service; after determining the second network device, the method further comprises:

and determining a target beam which generates interference on the first service by the second network equipment.

Optionally, the determining a target beam that the second network device interferes with the first service includes:

the first network equipment and the second network equipment transmit second reference signals on each wave beam in a time division mode;

receiving second measurement results of a second reference signal sent by the terminal on each beam by the first network device and the second network device, wherein the second measurement results comprise reference measurement results of the second reference signal sent by the first network device on a first beam, and the first beam is a downlink beam where the terminal is located;

and calculating the absolute value of the difference between the reference measurement result and a second measurement result of a second reference signal sent by the second network device on each beam, and when the absolute value is smaller than a third threshold, taking the beam of the second network device corresponding to the absolute value as the target beam.

the first network equipment and the second network equipment transmit second reference signals on each beam in the same time period;

receiving a third measurement result of a second reference signal sent by the terminal on each beam by the first network equipment and the second network equipment;

selecting an interfered beam with a third measurement result lower than a fourth threshold from the beam of the first network device, calculating correlation results between a channel corresponding to the interfered beam and channels corresponding to each beam of the second network device according to the third measurement result, and taking the beam of the second network device corresponding to the correlation result larger than a fifth threshold as the target beam.

Optionally, the method further includes:

the first network equipment and the second network equipment interact respective service information, the service information comprises a slice identifier corresponding to a service and service quality grade information, and the service quality grade information comprises a service priority.

Optionally, the method further includes:

and the first network equipment sends second information to second network equipment under the condition that the first service is deactivated, wherein the second information is used for indicating the second network equipment to cancel the interference optimization of the target beam.

In a second aspect, an embodiment of the present application provides a method for interference optimization based on a service, including:

the second network equipment transmits a second service, receives first information sent by the first network equipment, wherein the first information is sent by the first network equipment under the condition of activating the first service and is used for indicating the second network equipment to perform interference optimization aiming at a target beam for transmitting the second service, and the priority of the second service is lower than that of the first service;

and the second network equipment performs interference optimization on a target beam of a second service according to the first information, wherein the target beam is a beam which generates interference on the first service.

Optionally, the first information further includes indication information of a target beam that the second network device interferes with the first service.

Optionally, performing interference optimization on the target beam of the second service includes:

and sending the service type of the second service and the information of the target beam to a physical layer, and performing multi-antenna interference optimization of the target beam through the physical layer of the second network equipment based on the service type.

Optionally, the multi-antenna interference optimization of the target beam includes at least one of:

adjusting the antenna weight to increase the beam broadening of the target beam in the horizontal dimension;

adjusting the antenna weight to increase the beam broadening of the target beam in the vertical dimension;

and adjusting the beam forming gain weight to reduce the antenna forming gain of the target beam.

Optionally, the method further includes:

receiving second information sent by the first network equipment, wherein the second information is used for indicating the second network equipment to cancel the interference optimization of the target beam;

canceling the interference optimization for the target beam according to the second information.

Optionally, the method further includes:

In a third aspect, embodiments of the present application provide a network device, which is a first network device and includes a transceiver and a processor, wherein,

the transceiver is configured to send first information to a second network device when a first service is activated, where the second network device is a network device that transmits a second service and generates interference with the first service, the first information is used to instruct the second network device to perform interference optimization for a target beam for transmitting the second service, and a priority of the second service is lower than that of the first service.

Optionally, the processor is configured to determine a second network device that transmits a second service and generates interference to the first service.

Optionally, the transceiver is further configured to receive a first measurement result of a first reference signal sent by a terminal for at least two network devices, where the at least two network devices include the first network device and at least one candidate network device;

the processor is further configured to select a second network device from candidate network devices for transmitting a second service according to the first measurement results of the at least two network devices, where the second network device includes at least one of a first candidate network device and a second candidate network device, and an absolute value of a difference between the first measurement results of the first candidate network device and the first network device is smaller than a first threshold; the first measurement result of the second candidate network device is better than the first network device, and the difference between the first measurement result of the second candidate network device and the first measurement result of the first network device is greater than a second threshold.

Optionally, the first information further includes indication information of a target beam that the second network device interferes with the first service

The processor is further configured to determine, after determining the second network device, a target beam that the second network device interferes with the first service.

Optionally, the transceiver is further configured to transmit a second reference signal on each beam in a time division manner with the second network device; receiving second measurement results of a second reference signal sent by the terminal on each beam by the first network device and the second network device, wherein the second measurement results comprise reference measurement results of the second reference signal sent by the first network device on a first beam, and the first beam is a downlink beam where the terminal is located;

the processor is further configured to calculate an absolute value of a difference between the reference measurement result and a second measurement result of the second network device that transmits the second reference signal on each beam, and when the absolute value is smaller than a third threshold, take a beam of the second network device corresponding to the absolute value as the target beam.

Optionally, the transceiver is further configured to transmit a second reference signal on each beam in the same time period as the second network device; receiving a third measurement result of a second reference signal sent by the terminal on each beam by the first network equipment and the second network equipment;

the processor is further configured to select an interfered beam with a third measurement result lower than a fourth threshold from beams of the first network device, calculate, according to the third measurement result, a correlation result between a channel corresponding to the interfered beam and channels corresponding to beams of the second network device, and use a beam of the second network device corresponding to the correlation result larger than a fifth threshold as the target beam.

Optionally, the transceiver is further configured to interact respective service information with a second network device, where the service information includes a slice identifier corresponding to a service and service quality level information, and the service quality level information includes a service priority.

Optionally, the transceiver is further configured to send second information to the second network device when the first service is deactivated, where the second information is used to instruct the second network device to cancel the interference optimization on the target beam.

In a fourth aspect, an embodiment of the present application provides a network device, where the network device is a first network device, and the network device includes:

the first sending module is configured to send first information to a second network device when a first service is activated, where the second network device is a network device that transmits a second service and generates interference with the first service, the first information is used to instruct the second network device to perform interference optimization for a target beam for transmitting the second service, and a priority of the second service is lower than that of the first service.

In a fifth aspect, the present invention provides a network device, which is a second network device for transmitting a second service, and includes a transceiver and a processor, wherein,

the transceiver is configured to receive first information sent by a first network device, where the first information is sent by the first network device when a first service is activated, and is used to instruct a second network device to perform interference optimization for a target beam for transmitting a second service, where a priority of the second service is lower than that of the first service;

the processor is configured to perform interference optimization on a target beam of a second service according to the first information, where the target beam is a beam that generates interference on the first service.

In a sixth aspect, an embodiment of the present application provides a network device, where the network device is a second network device, and the network device includes:

a first receiving module, configured to receive first information sent by a first network device, where the first information is sent by the first network device when a first service is activated, and is used to instruct a second network device to perform interference optimization for a target beam for transmitting a second service, where a priority of the second service is lower than that of the first service;

and a first optimization module, configured to perform interference optimization on a target beam of a second service by the second network device according to the first information, where the target beam is a beam that generates interference with the first service.

In a seventh aspect, an embodiment of the present application provides a network device, including: a processor, a memory and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the steps of the method according to any one of the first aspect or the steps of the method according to any one of the second aspect.

In an eighth aspect, the present application provides a computer-readable storage medium, on which a program is stored, and when the program is executed by a processor, the program implements the steps of the method as described above.

Compared with the prior art, according to the service-based interference optimization method, the network device and the storage medium provided in the embodiments of the present application, the first network device sends the first indication to the second device when the first service with high priority is activated, so as to notify the second network device to perform interference optimization on a target beam for transmitting the second service with low priority, thereby implementing service-based multi-antenna interference optimization, reducing or eliminating the cross-zone interference of the second network device on the first service, and improving the user experience of the service with high priority.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic diagram of interference caused by cross-area coverage when a large-scale antenna base station is networked;

fig. 2 is a schematic view of an application scenario of the interference optimization method according to the embodiment of the present application;

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

fig. 4 is another flowchart of an interference optimization method according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a network device according to another embodiment of the present application;

fig. 7 is a schematic structural diagram of a network device according to another embodiment of the present application;

fig. 8 is a schematic structural diagram of a network device according to another embodiment of the present application;

fig. 9 is a schematic structural diagram of a network device according to another embodiment of the present application.

Detailed Description

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

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

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As described in the background art, a general solution does not implement a service-based interference service for the interference problem caused by coverage of Massive MIMO station type networking. Although the existing 5G base station can map the quality of service Flow (QoS Flow) mapped by the data packet to the data radio bearer and the logical channel for different services to realize different priority scheduling of the services, the physical layer after scheduling cannot perform interference optimization for differentiating the services according to the service types. Data services in the existing network are various, and have different requirements for quality guarantee of the services, that is, different requirements for interference optimization. High-reliability services require interference optimization for service provisioning, for example, Block Error Rate (BLER) is required to be less than 1%, and Voice over New Radio (VoNR) services based on New air interface require that an average Opinion Score (MOS) value of audio quality measurement is 3.5 or more.

The embodiment of the application provides a service-based interference optimization method and device, which are used for realizing service-based multi-antenna interference optimization and solving the problem of user experience deterioration caused by cross-zone interference.

The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

Referring to fig. 2, fig. 2 is a schematic view of an application scenario of the service-based interference optimization method according to the embodiment of the present application, where the application scenario includes a first network device, a second network device, and a terminal. It is assumed that the first network device activates a first service, which is a service transmitted to the terminal. If the second network device is transmitting the second service (the second service may be sent to the terminal or may be other terminals, which is not limited in this application). The first traffic may be interfered by the second traffic.

Referring to fig. 3, fig. 3 is a flowchart of a service-based interference optimization method provided in an embodiment of the present application, and as shown in fig. 3, the method includes the following steps:

step 301, a first network device sends first information to a second network device when activating a first service, where the second network device is a network device that transmits a second service and generates interference to the first service, the first information is used to instruct the second network device to perform interference optimization for a target beam that transmits the second service, and a priority of the second service is lower than that of the first service.

Here, the first network device and the second network device may specifically be base stations, such as large-scale antenna base stations. The first network device activates the first service, which may specifically be that the first network device starts to transmit the first service, for example, data of the first service is sent to the terminal, or the first network device is to transmit the first service, that is, transmission is not started but transmission is to be started, or transmission is started after a certain preset condition is met.

Through the above steps, the first network device in the embodiment of the application sends the first indication to the second device when activating the first service with high priority, so as to notify the second network device to perform interference optimization on a target beam for transmitting the second service with low priority, thereby implementing multi-antenna interference optimization based on the service, reducing the cross-region interference of the second network device on the first service, and improving the user experience of the high-priority service.

Before sending the first information, the first network device may determine a second network device that transmits the second traffic and interferes with the first traffic transmitted by the first network device. That is, the first network device determines the second service with a lower transmission priority than the first service, and the transmission of the second service may cause interference to the first service. Furthermore, after determining the second network device, the first network device may further determine a target beam that interferes with the first service by the second network device.

In order to perform interference optimization on the interference-causing beam in a targeted manner, in this embodiment of the application, the first information may further include indication information of a target beam (i.e., the interference-causing beam) where the second network device interferes with the first service, so that the second network device may perform interference optimization on the target beam to improve an interference optimization effect.

The following illustrates a manner in which a first network device determines a second network device and an interference beam thereof in this embodiment of the present application.

The first network device may receive a first measurement result of a first reference signal transmitted by a terminal for at least two network devices, including the first network device and at least one candidate network device. That is to say, each network device sends a first reference signal, and the terminal receives and measures the first reference signal sent by each network device to obtain a first measurement result, and reports the first measurement result to the first network device. Here, the terminal may be a first terminal receiving the first service. The first Reference Signal may specifically be a Synchronization Signal Block (SSB), and the first measurement result may specifically be an indicator of Signal strength or Signal Quality of the first Reference Signal, such as Reference Signal Received Power (RSRP), Signal-to-Noise Ratio (SNR), Reference Signal Received Quality (RSRQ), and the like.

Then, the first network device selects a second network device from candidate network devices for transmitting a second service according to the first measurement results of the at least two network devices, wherein the second network device includes at least one of the first candidate network device and the second candidate network device, and an absolute value of a difference value between the first measurement results of the first candidate network device and the first network device is smaller than a first threshold; the first measurement result of the second candidate network device is better than the first network device, and the difference between the first measurement result of the second candidate network device and the first measurement result of the first network device is greater than a second threshold. The first threshold and the second threshold are preset thresholds and can be flexibly set according to specific scenes.

For example, in a case that the first measurement result is represented by RSRP, the first network device may select, according to signal strength (RSRP) of a first reference signal sent by each network device measured by the terminal, a network device that transmits a second service (i.e., a service with a priority lower than that of the first service) as a candidate network device, then compare the RSRP of the first reference signal sent by each candidate network device with the RSRP of the first reference signal sent by the first network device, respectively, and if an absolute value of a difference between the RSRP of the candidate network device and the RSRP of the first network device is smaller than a first threshold, take the candidate network device as the second network device; if the RSRP of the candidate network device is greater than the RSRP of the first network device, and a difference obtained by subtracting the RSRP of the first network device from the RSRP of the candidate network device is greater than a second threshold, the candidate network device may be regarded as the second network device.

After determining the second network device, the embodiment of the application may further determine a target beam (i.e., an interfering beam) that the second network device interferes with the first service of the first network device.

Optionally, one implementation manner of determining the target beam is as follows:

(1) and the first network equipment and the second network equipment transmit second reference signals on each beam in a time division mode. Here, the transmission by the time division manner means that only one network device transmits the second reference signal on one beam at the same time. And the terminal measures second reference signals sent by the first network equipment and the second network equipment on each beam to obtain a second measurement result and reports the second measurement result to the first network equipment.

Preferably, the terminal is a terminal that receives the first service. The second Reference Signal may be a Channel State Information Reference Signal (CSI-RS). The second measurement result may be RSRP, SNR, RSRQ, or a Channel Quality Indicator (CQI) of the second reference signal, and the like. In the case where the second reference signal is a CSI-RS for beam management, the second measurement result may be RSRP, SNR, or RSRQ of the second reference signal. In case that the second reference signal is a CSI-RS for channel state estimation, the second measurement result may be a CQI of the second reference signal. Generally, the transmission beam of the CSI-RS for beam management may be narrower, thereby enabling more accurate determination of the source of the interfering beam.

In addition, in order to more truly reflect the beam interference situation between services, the first network device may transmit the second reference signal based on the beam within the beam range of the first service, and the second network device may transmit the second reference signal based on the beam within the beam range of the second service. For example, the beam ranges of the CSI-RSs of the first network device and the second network device are as close as possible to the service beam range (e.g., a 64T base station transmits 32 CSI-RS beams, with 4 layers in the vertical dimension, and 8 layers).

In addition, the first network device and the second network device may exchange information through an interface (e.g., an Xn interface) between the network devices to implement the time-division transmission process. For example, the first network device may first transmit the second reference signal on each beam of the first network device, and after all beams are completely transmitted, notify the second network device to transmit the second reference signal. For another example, the first network device and the second network device may activate the sending configuration information of the preconfigured second reference signal through interaction to implement the time division sending process, and a rule of a time division manner may be configured in the sending configuration information of the second reference signal.

(2) The first network device receives second measurement results of second reference signals sent by the terminal on each beam by aiming at the first network device and the second network device, wherein the second measurement results comprise reference measurement results of the second reference signals sent by the first network device on the first beam, and the first beam is a downlink beam where the terminal is located. That is, the terminal receives data transmitted by the network in the direction of the first beam. The downlink beam (first beam) where the terminal is located may be determined through an uplink reference signal (e.g., SRS) sent by the terminal. There may be one or more of the first beams.

(3) And the first network equipment calculates the absolute value of the difference between the reference measurement result and a second measurement result of the second network equipment for sending a second reference signal on each beam, and takes the beam of the second network equipment corresponding to the absolute value as the target beam when the absolute value is smaller than a third threshold. That is, when the second measurement result on a certain beam of the second network device differs from the reference measurement result by less than a third threshold, the beam is added to the target beam. When there are a plurality of first beams, there may be a plurality of reference measurement results, and at this time, as long as the absolute value of the difference between the second measurement result on a certain beam of the second network device and any one of the reference measurement results is less than the third threshold, the beam may be added to the target beam.

Through the steps, the target beam of the second network equipment interfering with the first service can be determined.

Optionally, another implementation manner of determining the target beam is as follows:

(1) and the first network equipment and the second network equipment transmit a second reference signal in the same time period. And the terminal measures second reference signals sent by the first network equipment and the second network equipment on each beam to obtain a third measurement result and reports the third measurement result to the first network equipment.

Preferably, the terminal is a terminal that receives the first service. The second reference signal may be a CSI-RS. The third measurement result may be RSRP, SNR, RSRQ, CQI, or the like of the second reference signal. In the case where the second reference signal is a CSI-RS for beam management, the second measurement result may be RSRP, SNR, or RSRQ of the second reference signal. In case that the second reference signal is a CSI-RS for channel state estimation, the second measurement result may be a CQI of the second reference signal. Generally, the transmission beam of the CSI-RS for beam management may be narrower, thereby enabling more accurate determination of the source of the interfering beam.

In addition, in order to more truly reflect the beam interference situation between services, the first network device may transmit the second reference signal based on the beam within the beam range of the first service, and the second network device may transmit the second reference signal based on the beam within the beam range of the second service.

(2) And receiving a third measurement result of a second reference signal transmitted by the terminal on each beam by the first network equipment and the second network equipment.

(3) Selecting an interfered beam with a third measurement result lower than a fourth threshold from the beam of the first network device, calculating correlation results between a channel corresponding to the interfered beam and channels corresponding to each beam of the second network device according to the third measurement result, and taking the beam of the second network device corresponding to the correlation result larger than a fifth threshold as the target beam.

Here, the first network device may obtain, through the third measurement result of the second reference signal, channel information corresponding to a beam that transmits the second reference signal, such as Precoding Matrix Indicator (PMI) information reported by the terminal. Then, the correlation between the channel information corresponding to the interfered beam and the channel information corresponding to the beam of the second network device is calculated, and if the correlation is greater than a fifth threshold, the beam of the second network device is added to the target beam. Generally, the greater the correlation, the greater the interference generated by the beam.

In this embodiment, the first network device and the second network device may interact their respective service information, such as activated or deactivated service information, through an Xn interface or other manners, where the service information may specifically include a slice identifier corresponding to a service and service quality level information, and the service quality level information may include indexes such as service priority.

In addition, in the case that the first network device deactivates the first service (e.g., stops or suspends transmission of the first service), the first network device may send second information to the second network device, where the second information is used to instruct the second network device to cancel the interference optimization on the target beam.

The implementation method of the present application on the first network device side is described above, and through the above steps, the first network device may notify the second network device to perform interference optimization on the target beam when activating the first service, so as to reduce or eliminate the influence of the target beam on the first service transmission, thereby implementing a service-based multi-antenna interference elimination, and being capable of improving the user experience of the high-priority service.

Referring to fig. 4, when the method for interference optimization based on service provided in the embodiment of the present application is applied to a second network device, the method includes:

step 401, a second network device transmitting a second service receives first information sent by a first network device, where the first information is sent by the first network device when the first service is activated, and is used to instruct the second network device to perform interference optimization for a target beam transmitting the second service, and a priority of the second service is lower than that of the first service.

Here, the second network device is transmitting the second service, and the second service has a lower priority than the first service activated by the first network device. The first information may further include indication information of a target beam that the second network device interferes with the first service.

Step 402, the second network device performs interference optimization on a target beam of a second service according to the first information, where the target beam is a beam that generates interference on the first service.

Through the steps, the second network equipment performs interference optimization on the target beam according to the first information, so that the interference of low-priority services on high-priority services transmitted by other equipment can be reduced or eliminated, the transmission of the high-priority services is guaranteed preferentially, and the user experience of the high-priority services is improved.

Specifically, in this embodiment of the present application, when performing interference optimization, the second network device may send the service type of the second service and information of the target beam to the physical layer, and perform multi-antenna interference optimization of the target beam based on the service type through the physical layer of the second network device, thereby implementing cross-layer multi-antenna interference optimization. For example, the RRC layer of the second network device sends an RRC message to the physical layer, and sends the service type of the second service and the information of the target beam to the physical layer, so that the physical layer performs interference optimization.

In an embodiment of the present application, the multi-antenna interference optimization of the target beam includes at least one of:

1) adjusting the antenna weight to increase the beam broadening of the target beam in the horizontal dimension;

2) adjusting the antenna weight to increase the beam broadening of the target beam in the vertical dimension;

3) and adjusting the beam forming gain weight to reduce the antenna forming gain of the target beam.

The second network device may further receive second information sent by the first network device, where the second information is used to instruct the second network device to cancel the interference optimization on the target beam, when the first network device deactivates the first service. At this time, the second network device may cancel the interference optimization for the target beam according to the second information. Canceling the interference optimization for the target beam may specifically include at least one of:

1) adjusting the antenna weight to reduce the beam broadening of the target beam in the horizontal dimension;

2) adjusting the antenna weight to reduce the beam broadening of the target beam in the vertical dimension;

3) and adjusting the beam forming gain weight to increase the antenna forming gain of the target beam.

In addition, in this embodiment of the present application, the first network device may further interact respective service information with the second network device, where the service information includes a slice identifier corresponding to a service and service quality level information, and the service quality level information includes a service priority.

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

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

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

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

Various methods of embodiments of the present application are described above. An apparatus for carrying out the above method is further provided below.

Referring to fig. 5, an embodiment of the present application further provides a network device 500, where the network device is a first network device, and the network device includes:

a first sending module 501, configured to send first information to a second network device when a first service is activated, where the second network device is a network device that transmits a second service and generates interference to the first service, the first information is used to instruct the second network device to perform interference optimization for a target beam for transmitting the second service, and a priority of the second service is lower than that of the first service.

Optionally, the network device further includes:

the first determining module is used for determining second network equipment which transmits the second service and generates interference to the first service before the first information is sent.

Optionally, the first determining module is further configured to receive a first measurement result of a first reference signal sent by a terminal for at least two network devices, where the at least two network devices include the first network device and at least one candidate network device; selecting a second network device from candidate network devices for transmitting a second service according to first measurement results of the at least two network devices, wherein the second network device comprises at least one of a first candidate network device and a second candidate network device, and an absolute value of a difference value between the first measurement results of the first candidate network device and the first network device is smaller than a first threshold; the first measurement result of the second candidate network device is better than the first network device, and the difference between the first measurement result of the second candidate network device and the first measurement result of the first network device is greater than a second threshold.

Optionally, the first information further includes indication information of a target beam that the second network device interferes with the first service; the network device further includes:

and a second determining module, configured to determine, after determining the second network device, a target beam that the second network device interferes with the first service.

Optionally, the second determining module is further configured to send, with the second network device, a second reference signal on each beam in a time division manner; receiving second measurement results of a second reference signal sent by the terminal on each beam by the first network device and the second network device, wherein the second measurement results comprise reference measurement results of the second reference signal sent by the first network device on a first beam, and the first beam is a downlink beam where the terminal is located; and calculating the absolute value of the difference between the reference measurement result and a second measurement result of a second reference signal sent by the second network device on each beam, and when the absolute value is smaller than a third threshold, taking the beam of the second network device corresponding to the absolute value as the target beam.

Optionally, the first determining module is further configured to send a second reference signal on each beam in the same time period as that of the second network device; receiving a third measurement result of a second reference signal sent by the terminal on each beam by the first network equipment and the second network equipment; selecting an interfered beam with a third measurement result lower than a fourth threshold from the beam of the first network device, calculating correlation results between a channel corresponding to the interfered beam and channels corresponding to each beam of the second network device according to the third measurement result, and taking the beam of the second network device corresponding to the correlation result larger than a fifth threshold as the target beam.

Optionally, the network device further includes:

the first interaction module is used for interacting respective service information with the second network device, wherein the service information comprises a slice identifier corresponding to a service and service quality grade information, and the service quality grade information comprises a service priority.

Optionally, the network device further includes:

a second sending module, configured to send second information to a second network device when the first service is deactivated, where the second information is used to instruct the second network device to cancel the interference optimization on the target beam.

It should be noted that the device in this embodiment is a device corresponding to the method applied to the first network device side, and the implementation manners in the above embodiments are all applied to the embodiment of the device, and the same technical effects can be achieved. The device provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment, and can achieve the same technical effects, and detailed descriptions of the same portions and beneficial effects as those of the method embodiment in this embodiment are omitted here.

Referring to fig. 6, an embodiment of the present application further provides a network device 600, where the network device is a first network device, and the network device includes: a transceiver 601 and a processor 602;

the transceiver 601 is configured to send first information to a second network device when a first service is activated, where the second network device is a network device that transmits a second service and generates interference to the first service, the first information is used to instruct the second network device to perform interference optimization for a target beam for transmitting the second service, and a priority of the second service is lower than that of the first service.

Optionally, the processor 602 is configured to determine a second network device that transmits a second service and interferes with the first service.

It should be noted that the device in this embodiment is a device corresponding to the method applied to the first network device side, and the implementation manners in the above embodiments are all applied to the embodiment of the device, and the same technical effects can be achieved. The device provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated here.

Referring to fig. 7, an embodiment of the present application further provides a network device 700, where the network device is a second network device, and the network device includes:

a first receiving module 701, configured to receive first information sent by a first network device, where the first information is sent by the first network device when a first service is activated, and is used to instruct a second network device to perform interference optimization for a target beam for transmitting a second service, where a priority of the second service is lower than that of the first service;

a first optimizing module 702, configured to perform interference optimization on a target beam of a second service by the second network device according to the first information, where the target beam is a beam that generates interference with the first service.

Optionally, the first optimization module is further configured to send the service type of the second service and the information of the target beam to a physical layer, and perform multi-antenna interference optimization on the target beam based on the service type through the physical layer of the second network device.

Optionally, the network device further includes:

a second receiving module, configured to receive second information sent by a first network device, where the second information is used to instruct a second network device to cancel interference optimization on the target beam;

and the second optimization module is used for canceling the interference optimization of the target beam according to the second information.

Optionally, the network device further includes:

It should be noted that the device in this embodiment is a device corresponding to the method applied to the network side, and the implementation manners in the above embodiments are all applied to the embodiment of the device, and the same technical effects can be achieved. The device provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated here.

Referring to fig. 8, an embodiment of the present application further provides a network device 800, where the network device is a second network device, and the network device includes: a transceiver 801 and a processor 802;

the transceiver 801 is configured to receive first information sent by a first network device, where the first information is sent by the first network device when a first service is activated, and is used to instruct a second network device to perform interference optimization for a target beam for transmitting a second service, where a priority of the second service is lower than that of the first service;

the processor 802 is configured to perform interference optimization on a target beam of a second service according to the first information, where the target beam is a beam that generates interference on the first service.

Optionally, the processor 802 is further configured to send the service type of the second service and the information of the target beam to a physical layer, and perform multi-antenna interference optimization on the target beam through the physical layer of the second network device based on the service type.

Optionally, the transceiver is further configured to receive second information sent by the first network device, where the second information is used to instruct the second network device to cancel the interference optimization on the target beam;

the processor is further configured to cancel interference optimization for the target beam according to the second information.

It should be noted that the device in this embodiment is a device corresponding to the method applied to the second network device side, and the implementation manners in the above embodiments are all applied to the embodiment of the device, and the same technical effects can be achieved. The device provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated here.

Referring to fig. 9, an embodiment of the present application further provides a network device 900, which includes a processor 901, a memory 902, and a computer program that is stored in the memory 902 and is executable on the processor 901, and when the computer program is executed by the processor 901, the computer program implements each process of the embodiment of the interference optimization method based on service executed by the second network device, and can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.

The embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements each process of the foregoing service-based interference optimization method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for traffic-based interference optimization, comprising:

the method comprises the steps that first network equipment sends first information to second network equipment under the condition that first service is activated, wherein the second network equipment is network equipment which transmits second service and generates interference on the first service, the first information is used for indicating the second network equipment to carry out interference optimization on a target beam which transmits the second service, and the priority of the second service is lower than that of the first service; wherein the target beam is determined in the following manner:

the first network equipment and the second network equipment transmit second reference signals on each wave beam in a time division mode; receiving second measurement results of a second reference signal sent by the terminal on each beam by the first network device and the second network device, wherein the second measurement results comprise reference measurement results of the second reference signal sent by the first network device on a first beam, and the first beam is a downlink beam where the terminal is located; calculating an absolute value of a difference value between the reference measurement result and a second measurement result of a second reference signal sent by the second network device on each beam, and taking the beam of the second network device corresponding to the absolute value as the target beam when the absolute value is smaller than a third threshold;

alternatively, the first and second electrodes may be,

the first network equipment and the second network equipment transmit second reference signals on each beam in the same time period; receiving a third measurement result of a second reference signal sent by the terminal on each beam by the first network equipment and the second network equipment; selecting an interfered beam with a third measurement result lower than a fourth threshold from the beam of the first network device, calculating correlation results between a channel corresponding to the interfered beam and channels corresponding to each beam of the second network device according to the third measurement result, and taking the beam of the second network device corresponding to the correlation result larger than a fifth threshold as the target beam.

2. The method of claim 1, wherein prior to transmitting the first information, the method further comprises:

3. The method of claim 2, wherein determining the second network device that transmits the second traffic and interferes with the first traffic comprises:

4. The method of claim 2, wherein the first information further includes indication information of a target beam that the second network device interferes with the first service; after determining the second network device, the method further comprises:

5. The method of any of claims 1 to 4, further comprising:

6. The method of any of claims 1 to 4, further comprising:

7. A method for traffic-based interference optimization, comprising:

the second network device performs interference optimization on a target beam of a second service according to the first information, wherein the target beam is a beam which generates interference on the first service, and the target beam is determined by the first network device according to the following modes:

alternatively, the first and second electrodes may be,

8. The method of claim 7, wherein the first information further includes information indicating a target beam that the second network device interferes with the first service.

9. The method of claim 8, wherein performing interference optimization on the target beam for the second service comprises:

10. The method of claim 9, wherein the multi-antenna interference optimization of the target beam comprises at least one of:

11. The method of claim 8, further comprising:

12. The method of claim 7, further comprising:

13. A network device, wherein the network device is a first network device comprising a transceiver and a processor, wherein,

the transceiver is configured to send first information to a second network device when a first service is activated, where the second network device is a network device that transmits a second service and generates interference with the first service, the first information is used to instruct the second network device to perform interference optimization for a target beam for transmitting the second service, and a priority of the second service is lower than that of the first service;

the transceiver is further configured to transmit a second reference signal on each beam in a time division manner with a second network device; receiving second measurement results of a second reference signal sent by the terminal on each beam by the first network device and the second network device, wherein the second measurement results comprise reference measurement results of the second reference signal sent by the first network device on a first beam, and the first beam is a downlink beam where the terminal is located; the processor is configured to calculate an absolute value of a difference between the reference measurement result and a second measurement result of a second reference signal sent by the second network device on each beam, and when the absolute value is smaller than a third threshold, use a beam of the second network device corresponding to the absolute value as the target beam;

alternatively, the first and second electrodes may be,

the transceiver is further configured to transmit a second reference signal on each beam in the same time period as a second network device; receiving a third measurement result of a second reference signal sent by the terminal on each beam by the first network equipment and the second network equipment; the processor is configured to select an interfered beam with a third measurement result lower than a fourth threshold from beams of the first network device, calculate, according to the third measurement result, a correlation result between a channel corresponding to the interfered beam and channels corresponding to beams of the second network device, and use a beam of the second network device corresponding to the correlation result larger than a fifth threshold as the target beam.

14. The network device of claim 13,

the processor is configured to determine a second network device that transmits a second service and interferes with the first service.

15. The network device of claim 14,

the transceiver is further configured to receive a first measurement result of a first reference signal sent by a terminal for at least two network devices, where the at least two network devices include the first network device and at least one candidate network device;

16. The network device of claim 14, wherein the first information further comprises information indicating a target beam that the second network device interferes with the first service

17. The network device of any of claims 13 to 16,

the transceiver is further configured to interact respective service information with a second network device, where the service information includes a slice identifier corresponding to a service and service quality level information, and the service quality level information includes a service priority.

18. The network device of any of claims 13 to 16,

the transceiver is further configured to send second information to a second network device when the first service is deactivated, where the second information is used to instruct the second network device to cancel the interference optimization on the target beam.

19. A network device, wherein the network device is a second network device for transmitting a second service, comprising a transceiver and a processor, wherein,

the processor is configured to perform interference optimization on a target beam of a second service according to the first information, where the target beam is a beam that interferes with the first service, and the target beam is determined by the first network device in the following manner:

alternatively, the first and second electrodes may be,

20. A network device, comprising: a processor, a memory and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the steps of the method according to any one of claims 1 to 6 or implementing the steps of the method according to any one of claims 7 to 12.

21. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 12.