CN114793364A

CN114793364A - Scheduling method, device and apparatus for avoiding downlink interference and storage medium

Info

Publication number: CN114793364A
Application number: CN202110097497.3A
Authority: CN
Inventors: 张绍楷; 李天宬; 贾保灵
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2022-07-26

Abstract

The embodiment of the application provides a scheduling method, equipment, a device and a storage medium for avoiding downlink interference, wherein the method comprises the following steps: determining the position of a target terminal, and if the target terminal is located in the fringe area of an interference cell, configuring a plurality of CSI-RS (channel State information reference signal) measurement bandwidths, wherein the plurality of CSI-RS measurement bandwidths comprise a full-bandwidth CSI-RS measurement bandwidth and a CSI-RS measurement bandwidth with the size of at least one interference cell bandwidth; determining the interference level of a Physical Resource Block (PRB) corresponding to the bandwidth of an interference cell based on the measured values on the plurality of CSI-RS measurement bandwidths reported by the target terminal; and allocating resources for the data volume to be transmitted of the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interference cell. The embodiment of the application can effectively identify and avoid downlink interference and improve the throughput of the service cell.

Description

Scheduling method, device and apparatus for avoiding downlink interference and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a scheduling method, device, and apparatus for avoiding downlink interference, and a storage medium.

Background

Fourth generation mobile communications (the 4) ^th generation, 4G) and fifth generation mobile communications (the 5) ^th generation, 5G) common networking, there is overlap between the bandwidth of the 4G base station and the bandwidth of the 5G base station, resulting in small Long Term Evolution (LTE)There is overlapping coverage or edge coverage between a region and a New Radio (NR) cell, which causes severe interference with each other.

At present, in a conventional NR scheduling method, frequency selective scheduling is performed according to subband reporting of a terminal, because granularity of subband Channel Quality Indication (CQI) reporting is small, interference on different Physical Resource Blocks (PRBs) cannot be accurately distinguished, when traffic is large, the scheduled PRBs are in high demand, and high-interference and low-interference PRBs are scheduled together, which further causes decoding failure and throughput reduction.

Disclosure of Invention

The embodiment of the application provides a scheduling method, equipment, a device and a storage medium for avoiding downlink interference, which are used for solving the defects that in the related technology, PRBs (physical resource blocks) with high interference and low interference are scheduled together, decoding failure is caused, and throughput is reduced, so that downlink interference is effectively identified and avoided, and the throughput of a serving cell is improved.

In a first aspect, an embodiment of the present application provides a scheduling method for avoiding downlink interference, including:

determining the position of a target terminal, and if the target terminal is located in the edge area of an interference cell, configuring a plurality of CSI-RS measurement bandwidths, wherein the plurality of CSI-RS measurement bandwidths comprise a full-bandwidth CSI-RS measurement bandwidth and a CSI-RS measurement bandwidth with the size of at least one interference cell bandwidth;

determining the interference level of a Physical Resource Block (PRB) corresponding to the bandwidth of an interference cell based on the measured values on the plurality of CSI-RS measurement bandwidths reported by the target terminal;

and allocating resources for the data volume to be transmitted of the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interference cell.

Optionally, according to the scheduling method for avoiding downlink interference according to an embodiment of the present application, the determining, based on the measured values on the multiple CSI-RS measurement bandwidths reported by the target terminal, the interference level of the PRB corresponding to the interfering cell bandwidth includes:

determining spectral efficiency difference between spectral efficiency on a full bandwidth and spectral efficiency on an interference cell bandwidth based on the measured values on the plurality of CSI-RS measurement bandwidths reported by the target terminal;

determining an interference level of a PRB on an interfering cell bandwidth based on the spectral efficiency difference;

the measured values on the multiple CSI-RS measurement bandwidths reported by the target terminal include spectrum efficiency on a full bandwidth and spectrum efficiency on an interference cell bandwidth.

Optionally, according to a scheduling method for downlink interference avoidance in an embodiment of the present application, the determining, based on the spectrum efficiency difference, an interference level of a PRB on an interfering cell bandwidth includes one of:

if the spectrum efficiency difference is larger than a preset high interference threshold, determining the interference level of the PRB on the bandwidth of the interference cell as a high interference level;

if the frequency spectrum efficiency difference is smaller than a preset high interference threshold and larger than a preset middle interference threshold, determining the interference level of the PRB corresponding to the bandwidth of the interference cell as a middle interference level;

and if the spectrum efficiency difference is smaller than a preset interference threshold, determining the interference level of the PRB corresponding to the bandwidth of the interference cell as a low interference level.

Optionally, according to the scheduling method for avoiding downlink interference according to an embodiment of the present application, the allocating resources for the amount of data to be transmitted of the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell includes:

respectively generating resource sequences for PRBs with different interference levels based on the interference levels of the PRBs corresponding to the bandwidths of the interference cells;

determining the data amount which can be accommodated by each resource sequence;

performing resource allocation based on the data volume to be transmitted of the target terminal and the data volume which can be accommodated by each resource sequence;

wherein the resource sequence comprises at least one of: a medium interference level resource sequence and a low interference level resource sequence.

Optionally, according to the scheduling method for avoiding downlink interference in an embodiment of the present application, the resource allocation based on the data amount to be transmitted of the target terminal and the data amount that can be accommodated by each resource sequence includes one of the following:

if the data volume to be transmitted of the target terminal is smaller than the data volume which can be accommodated by the low-interference level resource sequence, selecting a required PRB from the low-interference level resource sequence as a final resource;

if the data to be transmitted of the target terminal is larger than the data quantity which can be accommodated by the low interference level resource sequence and smaller than the data quantity which can be accommodated by the medium interference level resource sequence, selecting the required PRB from the medium interference level resource sequence as a final resource;

if the data to be transmitted of the target terminal is larger than the data quantity which can be accommodated by the resource sequence with the low interference level and larger than the data quantity which can be accommodated by the resource sequence with the medium interference level, and the data quantity which can be accommodated by the resource sequence with the low interference level is larger than the data quantity which can be accommodated by the resource sequence with the medium interference level, taking all PRBs contained by the resource sequence with the low interference level as final resources;

and if the data to be transmitted of the target terminal is larger than the data amount which can be accommodated by the low-interference level resource sequence and is larger than the data amount which can be accommodated by the medium-interference level resource sequence, and the data amount which can be accommodated by the medium-interference level resource sequence is larger than the data amount which can be accommodated by the low-interference level resource sequence, taking all PRBs contained by the medium-interference level resource sequence as final resources.

Optionally, according to the scheduling method for avoiding downlink interference in an embodiment of the present application, the determining the position of the target terminal includes:

judging whether a first preset condition is met or not according to a Reference Signal Received Power (RSRP) value of a serving cell and an RSRP value of an interference cell which are measured and reported by the target terminal;

if the first preset condition is met, determining that the target terminal is located in the edge area of the interference cell;

if the first preset condition is not met, determining that the target terminal is located in the central area of the serving cell;

wherein the first preset condition is as follows:

RSRP _ ServingCell < RSRP _ thr _ s and RSRP _ InterferenceCell > RSRP _ thr _ i;

the RSRP _ serving cell is an RSRP value of the serving cell, the RSRP _ thr _ s is an RSRP threshold of the serving cell, the RSRP _ interrupt cell is an RSRP value of the interfering cell, and the RSRP _ thr _ i is an RSRP threshold of the interfering cell.

Optionally, the scheduling method for avoiding downlink interference according to an embodiment of the present application further includes:

and if the terminal is located in the central area of the service cell, configuring the bandwidth of the CSI-RS as the full-bandwidth measurement bandwidth.

In a second aspect, an embodiment of the present application further provides a scheduling apparatus for avoiding downlink interference, including a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following:

Optionally, according to the scheduling device for avoiding downlink interference in an embodiment of the present application, the determining, based on the measured values on the multiple CSI-RS measurement bandwidths reported by the target terminal, the interference level of the PRB corresponding to the bandwidth of the interfering cell specifically includes:

Optionally, according to an embodiment of the present application, the determining, based on the poor spectrum efficiency, an interference level of a PRB over an interfering cell bandwidth includes one of:

Optionally, according to the scheduling device for avoiding downlink interference in an embodiment of the present application, the allocating resources to the amount of data to be transmitted of the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell includes:

wherein the resource sequence comprises at least one of: medium interference level resource sequences and low interference level resource sequences.

Optionally, according to the scheduling device for avoiding downlink interference in an embodiment of the present application, the resource allocation based on the amount of data to be transmitted of the target terminal and the amount of data that can be accommodated by each resource sequence includes one of the following:

if the data to be transmitted of the target terminal is larger than the data amount which can be accommodated by the low-interference level resource sequence and larger than the data amount which can be accommodated by the medium-interference level resource sequence, and the data amount which can be accommodated by the low-interference level resource sequence is larger than the data amount which can be accommodated by the medium-interference level resource sequence, taking all PRBs contained by the low-interference level resource sequence as final resources;

and if the data to be transmitted of the target terminal is larger than the data quantity which can be accommodated by the low-interference level resource sequence and larger than the data quantity which can be accommodated by the medium-interference level resource sequence, and the data quantity which can be accommodated by the medium-interference level resource sequence is larger than the data quantity which can be accommodated by the low-interference level resource sequence, taking all PRBs contained by the medium-interference level resource sequence as final resources.

Optionally, according to the scheduling device for avoiding downlink interference according to an embodiment of the present application, the determining the position of the target terminal includes:

wherein the first preset condition is as follows:

RSRP _ serving cell < RSRP _ thr _ s and RSRP _ InterferenceCell > RSRP _ thr _ i;

the RSRP _ serving cell is an RSRP value of the serving cell, the RSRP _ thr _ s is an RSRP threshold of the serving cell, the RSRP _ interference cell is an RSRP value of the interfering cell, and the RSRP _ thr _ i is an RSRP threshold of the interfering cell.

Optionally, the scheduling device for avoiding downlink interference according to an embodiment of the present application further includes:

In a third aspect, an embodiment of the present application further provides a scheduling apparatus for avoiding downlink interference, including:

the device comprises a configuration unit and a receiving unit, wherein the configuration unit is used for determining the position of a target terminal, and if the target terminal is located in the fringe area of an interference cell, a plurality of CSI-RS measurement bandwidths are configured, and comprise a full-bandwidth CSI-RS measurement bandwidth and a CSI-RS measurement bandwidth with the size of at least one interference cell bandwidth;

a determining unit, configured to determine, based on measurement values on the multiple CSI-RS measurement bandwidths reported by the target terminal, an interference level of a physical resource block PRB corresponding to an interfering cell bandwidth;

and the scheduling unit is used for allocating resources for the data volume to be transmitted of the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interference cell.

In a fourth aspect, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to enable the processor to execute the steps of the scheduling method for downlink interference avoidance according to the first aspect.

According to the scheduling method, the scheduling device, the scheduling apparatus and the scheduling storage medium for avoiding downlink interference, the target terminal is configured with the CSI-RS measurement bandwidth, the interference level of the PRB on the interference cell bandwidth is determined according to the measurement values on the plurality of CSI-RS measurement bandwidths reported by the target terminal, resources are allocated for the data volume to be transmitted of the target terminal, downlink interference is effectively identified and avoided, and the throughput of the serving cell is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic diagram of a scenario of NR and LTE spectrum occupancy in the prior art;

fig. 2 is a schematic diagram of a scenario of edge UE downlink transmission interference in the prior art;

fig. 3 is a schematic flowchart of a scheduling method for downlink interference avoidance according to an embodiment of the present application;

fig. 4 is a schematic view of a scenario for determining a PRB interference level according to an embodiment of the present application;

fig. 5 is a scene schematic diagram of a scheduling method for a UE located in an edge area of an interfering cell according to an embodiment of the present application;

fig. 6 is a scene schematic diagram of a scheduling method for a UE located in a center area of a serving cell according to an embodiment of the present application;

fig. 7 is a second flowchart of a scheduling method for downlink interference avoidance according to an embodiment of the present application;

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

fig. 9 is a schematic structural diagram of a scheduling apparatus for downlink interference avoidance according to an 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 obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The embodiment of the application provides a scheduling method, equipment, a device and a storage medium for avoiding downlink interference, which are used for solving the defects that high-interference and low-interference PRBs (physical resource blocks) are scheduled together in the related technology, so that decoding failure is caused, and throughput is reduced, so that downlink interference is effectively identified and avoided, and the throughput of a serving cell is improved.

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 described again.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, suitable systems may be global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) systems, Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, long term evolution (long term evolution) systems, LTE-a systems, universal mobile systems (universal mobile telecommunications systems, UMTS), universal internet Access (world interoperability for microwave Access (WiMAX) systems, New Radio interface (NR) systems, 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, e.g., 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), and may exchange language and/or data with the Radio Access Network. 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 called an access point, or may be 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 also be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may also be an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) System, a 5G Base Station (gNB) in a 5G network architecture (next generation System), or may also be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico), which is 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.

4/5G, when networking together, the 4G base station (main D1 and D2 frequency bands) does not completely quit the network, and the 5G base station will be interfered by the surrounding 4G base stations. NR occupies 100MHz bandwidth, but 40MHz bandwidth thereof is overlapped with 2 20MHz bandwidth of LTE, so that if LTE cell and NR cell are covered by same coverage or overlapping coverage, serious interference will be caused between each other.

As shown in fig. 1, the 100M bandwidth occupied by NR and the 20M bandwidths of D1 and D2 frequency bands occupied by LTE may collide with each other.

As shown in fig. 2, due to the movement of the terminal, in the edge area, the LTE downlink signal may interfere with the UE2 at the NR edge, and the NR downlink signal may also interfere with the LTE edge UE 1.

In the conventional NR scheduling algorithm, interference is determined according to the sub-band CQI reporting of the terminal in combination with table 1. As can be seen from table 1, the sub-band CQI reports only 4 levels, where for the interfering sub-band, the reported level is 3, which indicates that there is interference but does not determine the level of interference.

If the Offset level is greater than 0, less PRB resources can be scheduled for the scheduling UE, and when the traffic is large, the PRB required to be scheduled by the UE is more in demand according to the traffic demand, and the interference on different PRBs cannot be distinguished, so that the PRBs with high interference and low interference are scheduled together, the decoding failure is caused, and the throughput is reduced.

Table 1 sub-band CQI reporting

Sub-band differential CQI value	Offset level
		0	0
1	1
		2	≥2
3	≤-1

In order to solve the foregoing technical problem, embodiments of the present application provide a new scheduling method, device, apparatus, and storage medium for avoiding downlink interference.

Fig. 3 is a schematic flowchart of a scheduling method for avoiding downlink interference provided in an embodiment of the present application, and as shown in fig. 3, an execution subject of the scheduling method for avoiding downlink interference provided in the embodiment of the present application may be a network device, and the method includes:

step 300, determining the position of a target terminal, and if the target terminal is located in the edge area of an interference cell, configuring a plurality of CSI-RS measurement bandwidths.

The CSI-RS is generally used for measuring Channel State Information (CSI-RS), and common CSI includes Rank Information (RI), Precoding Matrix Indicator (PMI), CQI or Layer Indicator (LI), and the like.

It can be understood that the network device first determines the location of the target terminal, and determines whether the target terminal is located in the center area of the serving cell or the edge area of the interfering cell.

It should be noted that the center area and the edge area are relative concepts, and the center area does not indicate that the terminal is located at the very center of the serving cell.

When the UE is located in an edge area of one or more different interfering cells, it indicates that the UE is interfered by a downlink signal of the interfering cell, and therefore, in order to determine an interference level of a PRB on an interfering cell bandwidth, the network device needs to configure multiple CSI-RS measurement bandwidths for the UE.

The plurality of CSI-RS measurement bandwidths include a full-bandwidth CSI-RS measurement bandwidth and a CSI-RS measurement bandwidth of the size of at least one interfering cell bandwidth.

The full bandwidth is the total bandwidth occupied by the serving cell where the UE is located, for example, the serving cell where the UE is located is an NR cell, the NR cell occupies a 100MHz bandwidth, and the full bandwidth CSI-RS measurement bandwidth indicates that the measurement bandwidth of the CSI-RS is 100 MHz. The network equipment configures a full-bandwidth CSI-RS measurement bandwidth for the UE, so that the UE can measure a CSI-RS signal sent by a serving cell.

The interference cell bandwidth is, that is, the bandwidth occupied by the interference cell, for example, the interference cell is an LTE cell, the LTE cell occupies a bandwidth of 20MHz, and the CSI-RS measurement bandwidth with the small interference cell bandwidth indicates that the measurement bandwidth of the CSI-RS is 20 MHz. The network equipment configures the CSI-RS measurement bandwidth with the size of the interference cell bandwidth for the UE, so that the UE can measure the CSI-RS signals sent by the interference cell.

One or more CSI-RS measurement bandwidths with the sizes of the interference cell bandwidths can be configured, and are determined according to the number of interference cells where the UE is located.

Step 301, determining an interference level of a physical resource block PRB corresponding to an interfering cell bandwidth based on the measured values on the multiple CSI-RS measurement bandwidths reported by the target terminal.

And the network equipment determines the interference level of the PRB corresponding to the bandwidth of the interference cell according to the measured value on the measurement bandwidth of the CSI-RS reported by the UE.

In an embodiment, the network device may obtain the measured values on the multiple CSI-RS measurement bandwidths through the CQI reported by the terminal.

For example, the UE measures the CSI-RS signal of the serving cell and the CSI-RS signal of the interfering cell according to the indication of the network device, obtains a measurement value over the full bandwidth and a measurement value over the interfering cell bandwidth, carries the measurement value over the full bandwidth and the measurement value over the interfering cell bandwidth in the CQI, and reports the CQI to the network device, and the network device determines the interference level of the PRB corresponding to the interfering cell bandwidth according to the measurement values over the multiple CSI-RS measurement bandwidths reported by the UE.

The PRB interference level is the interference level of the UE in the edge area of the interfering cell, which is interfered by downlink signals of the interfering cell to different degrees, and reflects the interference state of the PRB on the bandwidth of the interfering cell. The PRB interference levels may be divided according to setting different PRB interference level threshold values.

Step 302, allocating resources for the amount of data to be transmitted of the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell.

In order to solve the problem of throughput reduction caused by decoding failure due to scheduling of PRBs of different interference levels together in the related art, in the embodiment of the present application, the network device performs resource allocation for the data volume to be transmitted of the UE based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, so as to avoid scheduling the PRBs of different interference levels together.

Further, because the current UE position changes in real time, the network device may obtain the UE position in real time, and instruct the UE to periodically obtain and report the measurement value according to the CSI-RS measurement bandwidth, and update the interference state of the PRB corresponding to the interference cell bandwidth according to the report period of the measurement value.

According to the scheduling method for avoiding downlink interference, the position of the terminal is determined, when the terminal is in an edge area of an interference cell, a plurality of CSI-RS measurement bandwidths are configured for a target terminal, the interference level of a PRB corresponding to the interference cell bandwidth is determined according to the measured values on the plurality of CSI-RS measurement bandwidths reported by the target terminal, resources are further allocated for the data volume to be transmitted of the target terminal based on the interference level, downlink interference can be effectively identified and avoided, and the throughput of a service cell is improved.

Based on any of the above embodiments, the determining, based on the measured value on the multiple CSI-RS measurement bandwidths reported by the target terminal, the interference level of the PRB corresponding to the interfering cell bandwidth includes:

determining an interference level of PRBs on an interfering cell bandwidth based on the spectral efficiency difference.

The measured values on the multiple CSI-RS measurement bandwidths reported by the target terminal comprise spectrum efficiency on a full bandwidth and spectrum efficiency on an interference cell bandwidth.

In one embodiment, the network device respectively obtains corresponding spectrum efficiencies according to CQI reports corresponding to a plurality of CSI-RS measurement bandwidths reported by a terminal, where the spectrum efficiencies include a spectrum efficiency over a full bandwidth and a spectrum efficiency over at least one interfering cell bandwidth.

The spectrum efficiency represents the number of bits per second transmittable on a unit broadband transmission channel, and is used for measuring the utilization efficiency of the system on spectrum resources.

It should be noted that, according to the measured values on the multiple CSI-RS measurement bandwidths reported by the UE, the network device respectively calculates the difference between the spectrum efficiency on the full bandwidth and the spectrum efficiency on each interfering cell bandwidth, and the formula is as follows:

eff_diff＝eff_rpt_full-eff_rpt_high_inter

wherein eff _ diff represents the spectral efficiency difference, eff _ rpt _ full represents the spectral efficiency on the full bandwidth, and eff _ rpt _ high _ inter represents the spectral efficiency on the bandwidth of the interfering cell.

It can be appreciated that when PRBs on the interfering cell bandwidth are not interfered with, the spectral efficiency on the interfering cell bandwidth and the spectral efficiency on the full bandwidth should be identical; if the spectral efficiency difference between the spectral efficiency on the full bandwidth and the spectral efficiency on the bandwidth of one interfering cell is larger, the interference degree of the PRB on the bandwidth of the interfering cell is larger; if the spectrum efficiency difference is smaller, it indicates that the PRB on the bandwidth of the interfering cell is interfered to a smaller extent. Thus, the interference level of a PRB over the interfering cell bandwidth may be determined based on the spectral efficiency difference.

According to the scheduling method for avoiding downlink interference provided by the embodiment of the application, network equipment obtains spectrum efficiency on a full bandwidth and spectrum efficiency on an interference cell bandwidth through measurement values on a plurality of CSI-RS measurement bandwidths reported by UE, further determines the spectrum efficiency difference, determines the interference level of PRB on the interference cell bandwidth according to the spectrum efficiency difference, effectively identifies the interference of downlink signals of the interference cell to the UE, and distinguishes the PRB interference levels corresponding to different interference cell bandwidths.

Based on any of the above embodiments, said determining an interference level of PRBs over an interfering cell bandwidth based on said spectral efficiency difference comprises one of:

The network equipment determines the interference level of the PRB corresponding to the bandwidth of the interference cell according to the spectral efficiency difference between the spectral efficiency on the full bandwidth and the spectral efficiency on the bandwidth of the interference cell. Respectively setting a high interference threshold value thr _ eff _ hihi and a medium interference threshold value thr _ eff _ midi, respectively comparing the magnitude relation between the spectrum efficiency difference eff _ diff and the high interference threshold value and the medium interference threshold value, and determining the interference level of the PRB on the bandwidth of the interference cell, which is specifically as follows:

and if the eff _ diff is larger than or equal to thr _ eff _ highi, which indicates that the frequency spectrum efficiency difference is larger than the preset high interference threshold, determining the interference level of the PRB corresponding to the bandwidth of the interference cell as the high interference level.

If thr _ eff _ midi is less than or equal to eff _ diff and less than thr _ eff _ highi, which indicates that the spectral efficiency difference is smaller than a preset high interference threshold and larger than a preset medium interference threshold, determining the interference level of the PRB corresponding to the bandwidth of the interference cell as a medium interference level.

If eff _ diff < thr _ eff _ midi, which indicates that the spectral efficiency difference is smaller than the preset interference threshold, determining the interference level of the PRB corresponding to the bandwidth of the interfering cell as a low interference level.

In the scheduling method for avoiding downlink interference provided in the embodiment of the present application, network equipment determines PRB interference levels corresponding to different interfering cell bandwidths by comparing a frequency spectrum efficiency difference with a high interference threshold and a medium interference threshold, on one hand, identifies interference of downlink signals of the interfering cells to UE, and on the other hand, determines and distinguishes the interference levels of PRBs on the interfering cell bandwidths.

How to determine the interference level of a PRB on the interfering cell bandwidth when the UE is located at the edge area of the interfering cell is explained in connection with fig. 4. Fig. 4 is a schematic view of a scenario for determining a PRB interference level according to an embodiment of the present application.

As shown in fig. 4, a 4G and 5G co-networking is taken as an example, where an NR cell represents a 5G base station environment, an LTE1 cell represents a D1 frequency band base station environment in 4G, an LTE2 cell represents a D2 frequency band base station environment in 4G, a bandwidth of the NR cell is 100M, and a D1 frequency band and a D2 frequency band are both 20M. Generally, a 100M bandwidth occupied by an NR cell forms downlink interference with a D1 bandwidth occupied by an LTE1 cell and a D2 bandwidth occupied by an LTE2 cell, respectively.

Wherein, UE1 represents a first terminal, and when UE1 is located in an edge region of LTE1 cell, downlink signal of NR cell generates downlink interference to UE1 in the edge region of LTE 1; UE2 represents a second terminal, and when UE2 is located in the center region of the LTE2 cell, the NR cell does not generate interference to UE2 in the center region of LTE 2; UE3 represents a third terminal, and when UE3 is located in an edge area of an NR cell, downlink signals of LTE1 cells and downlink signals of LTE2 cells respectively generate downlink interference for UE3 in the edge area of the NR cell.

Taking UE3 as an example, the CSI-RS measurement bandwidth configured by the network device for UE3 includes a full bandwidth, a first interfering cell bandwidth of a D1 frequency band in an LTE1 cell, and a second interfering cell bandwidth of a D2 frequency band in an LTE2 cell. According to the indication of the network equipment, when the UE3 reports the CQI, it reports the spectral efficiency eff _ rpt _ full over the full bandwidth, the spectral efficiency eff _ rpt _ high _ inter1 over the first interfering cell bandwidth, and the spectral efficiency eff _ rpt _ high _ inter2 over the second interfering cell bandwidth, respectively.

Wherein, the high interference threshold value thr _ eff _ highi is set to 4, and the medium interference threshold value thr _ eff _ midi is set to 2.

Respectively calculating the spectral efficiency difference between the spectral efficiency on the full bandwidth and the spectral efficiency on the first interfering cell bandwidth, and the spectral efficiency difference between the spectral efficiency on the full bandwidth and the spectral efficiency on the second interfering cell bandwidth to obtain:

eff _ diff1 ═ (eff _ rpt _ full-eff _ rpt _ high _ inter1) ═ 5, where eff _ diff1 represents the difference in spectral efficiency between the full bandwidth and the first interfering cell bandwidth.

eff _ diff2 ═ (eff _ rpt _ full-eff _ rpt _ high _ inter2) ═ 3, where eff _ diff2 represents the difference in spectral efficiency between the full bandwidth and the second interfering cell bandwidth.

Further, the interference levels of the PRBs corresponding to different interfering cell bandwidths are respectively determined according to different spectral efficiency differences, which is specifically as follows:

eff _ diff1> thr _ eff _ highi, which indicates that the interference level of the PRB over the first interference bandwidth is a high interference level.

thr _ eff _ midi < eff _ diff2< thr _ eff _ highi, which indicates that the interference level of the PRB over the second interference bandwidth is a medium interference level.

Based on any of the above embodiments, the allocating resources for the amount of data to be transmitted of the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell includes:

When the UE is in the edge area of the interference cell, the UE is interfered by downlink signals of one or more different interference cells, and after the network equipment determines the interference level of the PRB corresponding to the bandwidth of the interference cell, the network equipment allocates resources for the to-be-transmitted data volume of the target terminal according to the interference level.

Optionally, the interference level of the PRB corresponding to the bandwidths of the interfering cells is a high interference level, and the PRB corresponding to the bandwidth of the interfering cell is not scheduled;

if the interference level of the PRB corresponding to the interference cell bandwidth is a medium interference level, generating a medium interference level resource sequence based on the PRB corresponding to the interference cell bandwidth;

and if the interference level of the PRB corresponding to the bandwidth of the interference cell is a low interference level, generating a low interference level resource sequence based on the PRB corresponding to the bandwidth of the interference cell.

The medium-interference level resource sequence represents a medium-interference level PRB sequence which is not occupied by the UE on the interference cell bandwidth, and the low-interference level resource sequence represents a low-interference level PRB sequence which is not occupied by the UE on the interference cell bandwidth.

It should be noted that, the data amount that can be accommodated by different resource sequences generated by different PRB interference levels is different, and the data amount that can be accommodated by each resource sequence is determined by the network device.

Correspondingly, the data amount that can be carried by a single PRB in the low-interference level resource sequence and the medium-interference level resource sequence is calculated respectively, and the data amount that can be accommodated by the low-interference level resource sequence and the medium-interference level resource sequence is further calculated, specifically, the calculation process is as follows:

the calculation formula of the data quantity that can be carried by one PRB in the low interference level resource sequence is as follows:

PRB_size_lowlist＝min(156,N_RE)*eff_low*v；

the calculation formula of the data quantity which can be carried by one PRB in the resource sequence with the medium interference level is as follows:

PRB_size_midlist＝min(156,N_RE)*eff_mid*v；

a calculation formula of the number of Resource Elements (REs) for transmitting a Physical Downlink Shared Channel (PDSCH) included in one PRB is as follows:

N_RE＝12*N_sh_symb-N_PRB_dmrs-N_PRB_oh；

it follows that the calculation formula of the data amount that the low interference level resource sequence can accommodate is as follows:

DataV_lowlist＝size(prb_low_i_list)*PRB_size_lowlist；

the calculation formula of the data amount which can be accommodated by the medium interference level resource sequence is as follows:

DataV_midlist＝size(prb_mid_i_list)*PRB_size_loswlist。

wherein, DataV _ lowlist represents the data amount that the low interference level resource sequence can accommodate, DataV _ midlist represents the data amount that the medium interference level resource sequence can accommodate, PRB _ low _ i _ list represents the low interference level resource sequence, PRB _ mid _ i _ list represents the medium interference level resource sequence, size (PRB _ low _ i _ list) represents the number of all PRBs in the low interference level resource sequence, size (PRB _ mid _ i _ list) represents the number of all PRBs in the medium interference level resource sequence, PRB _ size _ lowlist represents the data amount that one PRB in the low interference level resource sequence can carry, PRB _ size _ midlist represents the data amount that one PRB in the medium interference level resource sequence can carry, N _ RE represents the number of delivered PRBs in one PRB, eff _ low represents the spectrum efficiency of the fitted PRB in the low interference level, eff _ midlet represents the spectrum efficiency of the fitted in the medium interference level resource sequence, and v represents the number of flow of PRBs in the low interference level resource sequence, n _ sh _ symb represents the number of symbols occupied by PDSCH, N _ PRB _ DMRS represents the number of REs occupied by Demodulation Reference Signal (DMRS), and N _ PRB _ oh represents the resource overhead of radio resource control RRC configuring CSI-RS and controlling resource set Coreset, and is obtained according to RRC configuration.

Then, the network device selects the PRB in the resource sequence meeting the requirement as the resource for transmitting the data to be transmitted of the UE by comparing the data volume to be transmitted of the UE with the data volume which can be accommodated by different resource sequences.

According to the scheduling method for avoiding downlink interference, resource sequences are respectively generated for PRBs with different interference levels based on the interference levels of the PRBs corresponding to the bandwidth of an interference cell, the data volume which can be accommodated by each resource sequence is determined, and resource allocation is performed based on the data volume to be transmitted of a target terminal and the data volume which can be accommodated by each resource sequence.

Based on any of the above embodiments, the performing resource allocation based on the data amount to be transmitted of the target terminal and the data amount that can be accommodated by each resource sequence includes one of the following:

if the data volume to be transmitted of the target terminal is less than the data volume which can be accommodated by the low-interference level resource sequence, selecting a required PRB from the low-interference level resource sequence as a final resource;

In order to realize resource allocation for the data volume to be transmitted of the UE, firstly, network equipment compares the data volume to be transmitted of the UE with the data volume which can be accommodated by a low-interference level resource sequence, judges whether PRB in the low-interference level resource sequence can be used as the resource of the data volume to be transmitted of the UE, and preferentially realizes scheduling of the PRB with the low-interference level; when the PRB with the low interference level does not meet the transmission requirement, the network equipment compares the data volume to be transmitted of the UE with the data volume which can be accommodated by the resource sequence with the medium interference level, and judges whether the PRB in the resource sequence with the medium interference level can be used as the resource of the data volume to be transmitted of the UE, so that the PRB with the medium interference level is scheduled; when the medium interference level PRB does not meet the transmission requirement, the network equipment compares the data volume which can be accommodated by the low interference level resource sequence with the data volume which can be accommodated by the medium interference level resource sequence, and selects the resource sequence with larger data volume as the resource of the data volume to be transmitted of the UE.

According to the scheduling method for avoiding downlink interference, network equipment distributes the data volume to be transmitted of UE by respectively comparing the data volume to be transmitted of the UE with the data volume which can be accommodated by each resource sequence, so that on one hand, interference of PRB (physical resource block) with high interference level on a terminal is avoided; on the other hand, the low-interference-level PRB and the medium-interference-level PRB are respectively scheduled, the low-interference-level PRB is preferentially scheduled, and when the low-interference-level PRB cannot meet the transmission requirement, the medium-interference-level PRB is scheduled, so that downlink interference can be effectively avoided, and the throughput of the serving cell is improved.

The allocation of resources for the amount of data to be transmitted by the terminal when the terminal is located in the edge area of the interfering cell is described with reference to fig. 5. Fig. 5 is a scene schematic diagram of a scheduling method for a UE located in an edge area of an interfering cell according to an embodiment of the present application.

As shown in fig. 5, {1, 2, 3, 4, 5} represents PRBs already occupied by the UE, {6,7,8,9,10} represents low interference level PRBs not occupied by the UE, {11, 12, 13} represents high interference level PRBs not occupied by the UE, and {14, 15, 16, 17, 18} represents medium interference level PRBs not occupied by the UE. The process of resource allocation by the network device to the amount of data to be transmitted by the UE is as follows.

Wherein, the medium interference level resource sequence generated based on the medium interference level PRB is PRB _ mid _ i _ list ═ {14, 15, 16, 17, 18}, the low interference level resource sequence generated based on the low interference level PRB is PRB _ low _ i _ list ═ {6,7,8,9,10}, and eff _ low > eff _ mid.

Further, size (PRB _ low _ i _ list) ═ size (PRB _ mid _ i _ list) ═ 5, data volume DataV _ lowlist ═ 1000 of the low interference level resource sequence is calculated according to a calculation formula of data volumes that can be accommodated by different resource sequences, data volume DataV _ midlist ═ 750 of the medium interference level resource sequence, data volume B0_ trans ═ 800 of the UE is calculated, in accordance with the case that data volume _ midlist ≦ B0_ trans ≦ DataV _ losst, a required resource is selected from the low interference level resource sequence as the data volume to be transmitted by the UE, where N _ PRB ≦ B0_ trans/PRB _ size _ lowlist ≦ 4, and therefore {6,7,8, 9} is selected from the low interference level resource sequence generated by the low interference level PRB as the data volume to be transmitted by the UE.

Based on any of the above embodiments, the determining the location of the target terminal includes:

if the first preset condition is not met, determining that the target terminal is located in a central area of a serving cell;

wherein the first preset condition is as follows:

In an optional embodiment, the specific process of obtaining a Reference Signal Receiving Power (RSRP) value of a serving cell and an RSRP value of an interfering cell, which are measured and reported by a UE, includes: the network equipment configures different system measurement for the UE according to a serving cell and an interference cell where the UE is located, and the UE reports the RSRP value of the serving cell and the RSRP value of the interference cell to the network equipment.

Further, an RSRP threshold value of the serving cell and an RSRP threshold value of the interfering cell are set, and the position of the current UE is determined by comparing the RSRP values reported by the UE, where RSRP _ serving cell represents the RSRP value of the serving cell, RSRP _ thr _ s represents the RSRP threshold value of the serving cell, RSRP _ intervening cell represents the RSRP value of the interfering cell, and RSRP _ thr _ i represents the RSRP threshold value of the interfering cell. The details are as follows.

When the RSRP _ serving cell < RSRP _ thr _ s and RSRP _ interference cell > RSRP _ thr _ i, it indicates that the UE is located in the edge area of the interfering cell.

When the RSRP _ ServingCell is more than or equal to the Rsrp _ thr _ s or the RSRP _ InterferrenceCell is less than or equal to the Rsrp _ thr _ i, the UE is positioned in the central area of the serving cell.

According to the scheduling method for avoiding downlink interference, the UE measures the reported RSRP value of the serving cell and the RSRP value of the interference cell, whether the UE is located in the edge area of the interference cell can be accurately judged based on the first preset condition, and interference of downlink signals of the interference cell on the UE can be effectively identified.

Based on any of the above embodiments, the scheduling method for avoiding downlink interference further includes:

It should be noted that, when the UE is located in the central area of the serving cell, it indicates that the UE is not interfered by the downlink signal of the interfering cell, and configures the CSI-RS full bandwidth for the UE, so that it is not necessary to determine the interference level of the PRB corresponding to the bandwidth of the interfering cell, and at this time, the data amount to be transmitted of the UE is scheduled by using a conventional method.

The network equipment generates a resource sequence according to all PRBs corresponding to the full-bandwidth measurement bandwidth of the UE, acquires the data volume to be transmitted of the UE, and performs resource allocation on the data volume to be transmitted of the UE according to the data volume to be transmitted and the data volume capable of being accommodated by the resource sequence. Wherein the resource sequence represents all PRB sequences not occupied by the UE over the full bandwidth.

Further, the number of PRBs to be transmitted of the UE is calculated, where N _ PRB is represented as the number of PRBs, and the number of PRBs of the resource sequence is calculated and represented as size (PRB _ low _ i _ list).

Further, when the N _ PRB is not larger than the size (PRB _ low _ i _ list), selecting N _ PRB PRBs from the resource sequence as resources required by the data volume to be transmitted of the UE; when N _ PRB > size (PRB _ low _ i _ list), all PRBs in the resource sequence are used as resources required by the amount of data to be transmitted by the UE. Here, N _ PRB represents the number of PRBs, and size (PRB _ low _ i _ list) represents the number of PRBs of the resource sequence.

According to the scheduling method for avoiding downlink interference, when the UE is located in the central area of the serving cell, the bandwidth is measured according to the full bandwidth of the UE, and the data volume to be transmitted of the UE is allocated in a traditional mode, so that the throughput of the serving cell is improved.

The resource allocation of the data amount to be transmitted by the UE when the UE is located in the central area of the serving cell is described with reference to fig. 6. Fig. 6 is a scene schematic diagram of a scheduling method for a UE located in a central area of a serving cell according to an embodiment of the present application.

As shown in fig. 6, {1, 2, 3, 4, 5} represents PRBs already occupied by the UE, and {6,7,8,9,10, 11, 12, 13, 14, 15, 16, 17, 18} represents PRBs not occupied by the UE.

As can be seen from fig. 6, the generated resource sequence is {6,7,8,9,10, 11, 12, 13, 14, 15, 16, 17, 18}, and size (PRB _ low _ i _ list) is obtained as 13, and if the number of PRBs required for the current terminal is 4, that is, N _ PRB is 4, N _ PRB < size (PRB _ low _ i _ list) is satisfied, so that {6,7,8, 9} can be selected from the resource sequence as the resource required by the UE.

Fig. 7 is a second flowchart of a scheduling method for avoiding downlink interference according to an embodiment of the present application, and as shown in fig. 7, the scheduling method for avoiding downlink interference according to the embodiment of the present application includes the following steps:

step 700, configuring different system measurement for a target terminal;

step 701, determining the position of a target terminal according to the RSRP value of a serving cell and the RSRP value of an interference cell which are measured and reported by the target terminal;

step 702, judging whether the target terminal is in the edge area of the interference cell;

7021, when the target terminal is not located in the edge area of the interference cell, configuring a full-bandwidth CSI-RS measurement bandwidth for the target terminal, and performing resource allocation on the data volume to be transmitted of the target terminal by adopting a traditional mode;

step 7022, when the target terminal is in the edge area of the interference cell, reconfiguring multiple CSI-RS measurement bandwidths for the target terminal, and performing step 703;

703, judging the interference level of a PRB on the bandwidth of the interference cell according to the measured values of the plurality of CSI-RS measurement bandwidths reported by the target terminal;

step 704, performing resource allocation on the data amount to be transmitted of the target terminal according to the interference level of the PRB over the interference cell bandwidth.

Fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application, where as shown in fig. 8, the network device includes a memory 820, a transceiver 800, a processor 810:

a memory 820 for storing a computer program; a transceiver 800 for transceiving data under the control of the processor 810; a processor 810 for reading the computer program in the memory 820 and performing the following operations:

A transceiver 800 for receiving and transmitting data under the control of a processor 810.

Wherein in fig. 8 the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 810 and various circuits of memory represented by memory 820 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 800 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.

Alternatively, the processor 810 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

The processor is used for executing any method provided by the embodiment of the application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory may also be physically separated.

According to the scheduling device for avoiding the downlink interference, the CSI-RS measurement bandwidth is configured for the target terminal, the interference level of the PRB corresponding to the interference cell bandwidth is determined according to the measured value of the CSI-RS measurement bandwidth reported by the target terminal, resources are further allocated for the data volume to be transmitted of the target terminal, the downlink interference is effectively identified and avoided, and the throughput of the serving cell is improved.

Optionally, the determining, based on the measured values on the multiple CSI-RS measurement bandwidths reported by the target terminal, an interference level of a PRB corresponding to an interfering cell bandwidth includes:

Optionally, the determining an interference level of PRBs over an interfering cell bandwidth based on the spectral efficiency difference comprises one of:

Optionally, the allocating resources to the amount of data to be transmitted of the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell includes:

Optionally, the resource allocation based on the data amount to be transmitted of the target terminal and the data amount that can be accommodated by each resource sequence includes one of:

Optionally, the determining the location of the target terminal includes:

wherein the first preset condition is as follows:

Optionally, the network device further includes:

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

Fig. 9 is a schematic diagram of a scheduling apparatus for downlink interference avoidance provided in an embodiment of the present application, and as shown in fig. 9, the scheduling apparatus for downlink interference avoidance includes a configuration unit 900, a determination unit 901, and a scheduling unit 902, where:

a configuration unit 900, configured to determine a position of a target terminal, and if the target terminal is located in an edge area of an interfering cell, configure a plurality of CSI-RS measurement bandwidths, where the plurality of CSI-RS measurement bandwidths include a full-bandwidth CSI-RS measurement bandwidth and a CSI-RS measurement bandwidth with a size of at least one interfering cell bandwidth;

a determining unit 901, configured to determine, based on the measured values on the multiple CSI-RS measurement bandwidths reported by the target terminal, an interference level of a physical resource block PRB corresponding to an interfering cell bandwidth;

a scheduling unit 902, configured to allocate resources to the amount of data to be transmitted of the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell.

According to the scheduling device for avoiding downlink interference, the CSI-RS measurement bandwidth is configured for the target terminal, the interference level of the PRB corresponding to the interference cell bandwidth is determined according to the measured value of the CSI-RS measurement bandwidth reported by the target terminal, resources are further allocated for the data volume to be transmitted of the target terminal, downlink interference is effectively identified and avoided, and the throughput of the serving cell is improved.

Optionally, the determining unit 901 is configured to:

determining a spectral efficiency difference between spectral efficiency on a full bandwidth and spectral efficiency on an interference cell bandwidth based on the measured values on the plurality of CSI-RS measurement bandwidths reported by the target terminal;

determining an interference level of PRBs on an interfering cell bandwidth based on the spectral efficiency difference;

Optionally, the scheduling unit 902 is configured to:

Optionally, the configuration unit 900 is configured to:

wherein the first preset condition is as follows:

Optionally, the unit 900 is further configured to:

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

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

It should be noted that the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment, and 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 herein.

On the other hand, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to enable the processor to execute the method provided by each of the foregoing embodiments, and the method includes:

determining the position of a target terminal, and if the target terminal is located in the fringe area of an interference cell, configuring a plurality of CSI-RS (channel State information reference signal) measurement bandwidths, wherein the plurality of CSI-RS measurement bandwidths comprise a full-bandwidth CSI-RS measurement bandwidth and a CSI-RS measurement bandwidth with the size of at least one interference cell bandwidth;

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

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

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

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

Claims

1. A scheduling method for avoiding downlink interference is characterized by comprising the following steps:

2. The method of claim 1, wherein the determining, based on the measured values on the CSI-RS measurement bandwidths reported by the target terminal, the interference level of a PRB corresponding to an interfering cell bandwidth comprises:

3. The method according to claim 2, wherein the determining the interference level of the PRB over the interfering cell bandwidth based on the spectral efficiency difference comprises one of:

4. The method according to claim 1, wherein the allocating resources for the amount of data to be transmitted of the target terminal based on the interference level of the PRB corresponding to the interfering cell bandwidth includes:

5. The method according to claim 4, wherein the allocating resources based on the amount of data to be transmitted of the target terminal and the amount of data that can be accommodated by each resource sequence includes one of:

6. The method for scheduling downlink interference avoidance according to claim 1, wherein the determining the location of the target terminal includes:

wherein the first preset condition is as follows:

7. The scheduling method for downlink interference avoidance according to claim 1, further comprising:

8. A scheduling device for downlink interference avoidance, comprising a memory, a transceiver, and a processor:

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

9. The scheduling device of claim 8, wherein the determining, based on the measured values on the CSI-RS measurement bandwidths reported by the target terminal, the interference level of a PRB corresponding to an interfering cell bandwidth specifically includes:

10. The scheduling device for downlink interference avoidance according to claim 9, wherein the determining the interference level of the PRBs over the interfering cell bandwidth based on the spectral efficiency difference comprises one of:

11. The scheduling apparatus for downlink interference avoidance according to claim 8, wherein the allocating resources for the amount of data to be transmitted of the target terminal based on the interference level of the PRB corresponding to the interfering cell bandwidth includes:

determining the data volume which can be accommodated by each resource sequence;

12. The scheduling apparatus for downlink interference avoidance according to claim 11, wherein the performing resource allocation based on the amount of data to be transmitted of the target terminal and the amount of data that can be accommodated by each resource sequence includes one of:

13. The downlink interference avoidance scheduling device according to claim 8, wherein the determining the location of the target terminal includes:

wherein the first preset condition is as follows:

14. The scheduling apparatus for downlink interference avoidance according to claim 8, further comprising:

15. A scheduling apparatus for downlink interference avoidance, comprising:

a determining unit, configured to determine, based on the measured values on the multiple CSI-RS measurement bandwidths reported by the target terminal, an interference level of a physical resource block PRB corresponding to an interfering cell bandwidth;

16. A processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and wherein the computer program is configured to cause the processor to execute the scheduling method for downlink interference avoidance according to any one of claims 1 to 7.