Inter-cell interference coordination method, device and storage medium

Abstract

The present application discloses an inter-cell interference coordination method, device and storage medium to solve the problem that inter-cell interference cannot be well solved in the related technology. In the present application, a mechanism for inter-cell collaborative interference processing based on regional positioning is proposed. For example, when a terminal device moves in a service cell, the terminal device is regionally positioned based on the downlink reference signal quality measurement report of the cell. When the positioning result is that the terminal device enters the edge band, the service cell can exchange the terminal resource information of the terminal device for interference coordination with the neighboring cell. The terminal resource information is, for example, resource configuration information for exclusive use of the terminal, such as resource allocation information of the terminal's service channel. Based on the terminal resource information, the terminal resource information of the terminal device can be shared with the neighboring cell to handle the inter-cell interference.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an inter-cell interference coordination method, device and storage medium. Background Art

[0002] With the development of communication technology, the number of communication terminal users continues to increase. How to ensure the communication quality of terminal users has always been an issue worth exploring.

[0003] Inter-cell interference will occur between two adjacent cells, especially in multi-antenna transmission scenarios. Inter-cell interference will affect the communication quality of end users and the normal operation of services. However, the interference coordination solutions in related technologies can only solve limited interference situations, and the effect of interference coordination is still unsatisfactory. Therefore, how to effectively solve inter-cell interference is still worth exploring. Summary of the invention

[0004] The present application provides a beam interference coordination method, device and storage medium between cells, which are used to solve the problem that beam interference coordination solutions in the prior art can only solve limited interference situations and the effect of interference coordination is still unsatisfactory.

[0005] In a first aspect, an embodiment of the present application provides an inter-cell interference coordination method, the method comprising:

[0006] Identify a first terminal device located in an edge zone of the cell;

[0007] For the first terminal device, terminal resource information for interference coordination is interacted with the first neighbor cell.

[0008] In this application, a mechanism for coordinated interference processing between cells based on regional positioning is proposed. For example, when a terminal device moves within a service cell, the terminal device is regionally positioned based on the cell's downlink reference signal quality measurement report. When the positioning result shows that the terminal device enters the edge band, the service cell can exchange the terminal resource information of the terminal device for interference coordination with the neighboring cell. The terminal resource information is, for example, the resource allocation information of the terminal's service channel. Based on the terminal resource information, the terminal resource information of the terminal device can be shared with the neighboring cell, thereby staggering the resource configuration between the terminal devices that have interference between the coordinated cells, thereby avoiding interference between cells.

[0009] In some embodiments, the terminal resource information includes resource configuration information for exclusive use of the terminal device and / or resource allocation information for a service channel of the terminal device.

[0010] Therefore, by transmitting resource configuration information and resource allocation information, resource configuration of interfering terminals in a shared neighboring cell can be achieved between different cells, and interference coordination between cells can be accurately performed.

[0011] In some embodiments, for narrow beams, the terminal resource information that is interacted includes the resource configuration information of the first terminal device;

[0012] The interacting with the first neighbor cell for terminal resource information for beam interference coordination includes:

[0013] Sending the resource configuration information of the first terminal device to the first neighboring cell to instruct the first neighboring cell to perform the following operations: performing a positioning operation on the first terminal device based on the resource configuration information of the first terminal device and determining whether there is a second terminal device having beam interference with the first terminal device in the first neighboring cell based on the positioning result;

[0014] The method further comprises:

[0015] In response to a first interference indication sent by the first neighboring cell for the first terminal device, sending resource allocation information of the first terminal device to the first neighboring cell; or,

[0016] In response to a second adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the resource allocation information of the first terminal device is adjusted.

[0017] Therefore, for narrow beams, the base station can rely on the SRS measurement results to determine the interference position of the terminal. Therefore, it is necessary to exchange the SRS resource configuration information of the UE between cells. In this embodiment, the cell actively transmits the resource configuration information of the terminal entering the edge band to the neighboring cell, so that the neighboring cell can accurately determine the terminal device with interference through position positioning, and adjust the resource configuration of repeated or overlapping resources in a targeted manner, thereby avoiding interference between cells.

[0018] In some embodiments, for narrow beams, the method further comprises:

[0019] Receiving the resource configuration information of a third terminal device in the second neighbor cell and located in an edge band of the second neighbor cell, which is sent by a second neighbor cell;

[0020] Performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device to obtain location information of the third terminal device;

[0021] Determine, based on the location information of the third terminal device, a fourth terminal device in the local cell that is located in the beam interference area of ​​the third terminal device;

[0022] Adjust the resource allocation information of the fourth terminal device and / or instruct the second neighbor cell to adjust the resource allocation information of the third terminal device.

[0023] Therefore, for narrow beams, the base station can rely on the SRS measurement results to determine the interference position of the terminal. Therefore, based on the resource configuration information of the terminal with potential beam interference transmitted by the neighboring cell, this cell can identify the beam interference area based on this information, and then accurately determine the terminal device with interference, and make targeted adjustments to the resource configuration of duplication or overlap, so as to avoid interference between cells.

[0024] In some embodiments, the location information includes a horizontal angle and a vertical angle of arrival, and determining the fourth terminal device in the cell that is located in the beam interference area of ​​the third terminal device based on the location information of the third terminal device includes:

[0025] Determine a horizontal angle difference and a vertical arrival angle difference between the third terminal device and the fourth terminal device;

[0026] If the horizontal angle difference is less than a first angle threshold and the vertical arrival angle difference is less than a second angle threshold, it is determined that the fourth terminal device is located within the beam interference area of ​​the third terminal device.

[0027] In this embodiment, the vertical arrival angle and the horizontal arrival angle obtained based on positioning can accurately measure whether the terminal in the edge band generates interference to the neighboring area, so as to facilitate subsequent accurate interference coordination processing.

[0028] In some embodiments, before performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device, the method further includes:

[0029] If there is a fifth terminal device in the present cell and the resource configuration information of the third terminal device is repeated, the resource configuration information of the fifth terminal device is adjusted and / or the second neighboring cell is instructed to adjust the resource configuration information of the third terminal device.

[0030] In this embodiment, by avoiding repeated configuration of resource configuration information, interference caused by repeated resource configuration information can be avoided and positioning accuracy can be improved.

[0031] In some embodiments, the method further comprises:

[0032] If the first terminal device moves from the central band of the local cell to the edge band of the local cell, restricting the time-frequency domain resources of the first terminal device;

[0033] The time-frequency domain resources include uplink time-frequency domain resources and / or downlink time-frequency domain resources.

[0034] In this embodiment, by limiting the time-frequency domain resources of the terminal devices entering the edge band, more resources can be configured for the terminal devices in the center band, and it is also convenient to stagger the resource configuration of the terminal devices in the edge band. In addition, under the same uplink transmission power, using fewer frequency domain resources will obtain higher average power and better improve the uplink reception performance; for the downlink, limiting the frequency domain resources of the downlink edge UE is conducive to allocating more resources to the UE in the center of the cell in the beam direction.

[0035] In some embodiments, the method further comprises:

[0036] If the first terminal device moves from the edge band of the cell to the center band of the cell, the restriction on the time-frequency domain resources of the first terminal device is lifted.

[0037] In this embodiment, the service communication capability of the terminal device can be guaranteed by timely restoring the restriction on the time-frequency domain resources of the terminal device.

[0038] In some embodiments, the restriction on the time-frequency domain resources of the first terminal device includes: reducing the time-frequency domain resources of the first terminal device and / or adjusting the time domain configuration of the time-frequency domain resources.

[0039] In this embodiment, resources are reconfigured in the frequency domain and / or time domain, thereby improving the flexibility of resource reconfiguration.

[0040] In some embodiments, the method further comprises:

[0041] If the first terminal device switches to the first neighboring cell, identifying a sixth terminal device located in an edge band of the cell and in a beam interference area of ​​the first terminal device based on the resource configuration information of the first terminal device;

[0042] Adjust the resource allocation information of the sixth terminal device, and / or instruct the first neighbor cell to adjust the resource allocation information of the first terminal device.

[0043] In this embodiment, after switching cells, it is possible to timely discover and adjust the mismatch between the terminal resource configurations in the current cell and the terminal in the switching cell, thereby avoiding interference between the terminals in the current cell and the terminal in the switching cell after switching.

[0044] In some embodiments, the identifying the first terminal device in the edge band of the cell includes:

[0045] Receiving a reference signal quality measurement report sent by the first terminal device; wherein the reference signal quality measurement report is sent by the first terminal device when it is determined to be in the edge band based on the reference signal quality of the local cell and the reference signal quality of the neighboring cell;

[0046] The first terminal device is regionally positioned based on the reference signal quality measurement report.

[0047] Based on the reference signal quality measurement report, regional positioning can be easily achieved and terminal devices entering the edge band can be discovered in time.

[0048] In some embodiments, the reference signal quality measurement report includes at least one interfered neighbor cell, and the first neighbor cell is any neighbor cell among the at least one interfered neighbor cell.

[0049] In this way, the serving cell can discover all neighboring cells that may potentially cause interference so as to coordinate interference with the neighboring cells.

[0050] In some embodiments, performing regional positioning of the first terminal device based on the reference signal quality measurement report includes:

[0051] When the reference signal quality of the first neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is less than a signal quality threshold, it is determined that the first terminal device is located in the edge band of the current cell.

[0052] In this embodiment, the terminal in the edge band can be identified simply and accurately based on the reference signal quality.

[0053] In some embodiments, performing regional positioning based on the reference signal quality measurement report includes:

[0054] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, it is determined that the first terminal device is located in the center band of the current cell.

[0055] In this embodiment, the terminal in the center band can be identified simply and accurately based on the reference signal quality.

[0056] In some embodiments, the method further comprises:

[0057] Instruct the first neighboring cell to keep the terminal resource information of the first terminal device unchanged if the first terminal device switches to the first neighboring cell.

[0058] In this embodiment, when switching from the serving cell to the first neighboring cell, the communication quality of the first terminal device can be guaranteed by instructing the first neighboring cell to retain the original terminal resource information configuration if the first terminal device switches to the first neighboring cell.

[0059] In some embodiments, for a wide beam, before exchanging terminal resource information for beam interference coordination with the first neighbor cell, the method further includes:

[0060] Determining that the reference signal qualities of the current cell and the first neighboring cell are both higher than an interference threshold, and that a reference signal quality difference is lower than a set threshold;

[0061] If the terminal resource information includes resource configuration information for a dedicated purpose of the first terminal device and resource allocation information of a service channel of the first terminal device, the terminal resource information for interacting with the first neighboring cell for beam interference coordination includes:

[0062] The resource configuration information of the first terminal device and the resource allocation information of the first terminal device are sent to the first neighbor cell to instruct the first neighbor cell to execute: reconfigure the resource configuration information of the seventh terminal device in the first neighbor cell that is identical to the resource configuration information of the first terminal device and adjust the reconfiguration resource allocation information of the eighth terminal device in the first neighbor cell that overlaps with the resource allocation information of the first terminal device.

[0063] In this embodiment, in view of the fact that the possibility of interference is small due to the long distance between stations in the wide beam scenario, the absolute value and relative value of the reference signal quality are used to identify this scenario, thereby achieving accurate identification of inter-cell interference in the wide beam scenario.

[0064] In some embodiments, for a wide beam, the interacting with the first neighbor cell for terminal resource information for beam interference coordination includes:

[0065] Based on a third adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the terminal resource information of the first terminal device is adjusted.

[0066] In this embodiment, for wide beam scenarios, by responding to the adjustment indication of the neighboring cell, the responding terminal device is adjusted to achieve interference coordination between cells.

[0067] In a second aspect, an embodiment of the present application further provides an inter-cell interference coordination method, the method comprising:

[0068] The terminal equipment measures the reference signal quality of the serving cell and the neighboring cell;

[0069] If it is determined to be in the edge band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cell, a reference signal quality measurement report is sent to the serving cell so that the serving cell and the neighboring cell exchange resource configuration information of the terminal device for inter-cell interference coordination.

[0070] In this embodiment, the terminal device timely reports the information of entering the edge band, so that the inter-cell interference system can be timely carried out to avoid the inter-cell interference.

[0071] In some embodiments, determining the edge band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cell includes:

[0072] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is less than a signal quality threshold, the edge band located in the serving cell is determined.

[0073] In this embodiment, it is possible to simply and conveniently identify that the terminal device is in the edge band by referring to the signal quality.

[0074] In some embodiments, after measuring the reference signal qualities of the serving cell and the neighboring cell, the method further includes:

[0075] If it is determined based on the reference signal qualities of the serving cell and the neighboring cells that the terminal device is in the center band of the serving cell, a reference signal quality measurement report is reported to the serving cell so that the serving cell removes resource restrictions on the terminal device.

[0076] In this embodiment, the communication quality is ensured by timely reporting that the terminal device enters the center band so as to obtain more resource configurations.

[0077] In some embodiments, the determining the center band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cells comprises:

[0078] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, the center band located in the serving cell is determined.

[0079] In this embodiment, it is possible to simply and conveniently identify that the terminal device is in the center band by using the reference signal quality.

[0080] In a third aspect, an embodiment of the present application provides a network side device, the network side device comprising: a processor, a memory, and a transceiver;

[0081] Memory for storing computer programs;

[0082] a transceiver, for transmitting and receiving data under the control of the processor;

[0083] A processor is configured to read the computer program in the memory and perform the following operations:

[0084] Identify a first terminal device located in an edge zone of the cell;

[0085] For the first terminal device, terminal resource information for interference coordination is interacted with the first neighbor cell.

[0086] In some embodiments, the terminal resource information includes resource configuration information for exclusive use of the terminal device and / or resource allocation information for a service channel of the terminal device.

[0087] In some embodiments, for narrow beams, the terminal resource information that is interacted includes the resource configuration information of the first terminal device;

[0088] The processor executes the interaction of terminal resource information for beam interference coordination with the first neighbor cell, including:

[0089] Sending the resource configuration information of the first terminal device to the first neighboring cell to instruct the first neighboring cell to perform the following operations: performing a positioning operation on the first terminal device based on the resource configuration information of the first terminal device and determining whether there is a second terminal device having beam interference with the first terminal device in the first neighboring cell based on the positioning result;

[0090] The processor is further configured to execute:

[0091] In response to a first interference indication sent by the first neighboring cell for the first terminal device, sending resource allocation information of the first terminal device to the first neighboring cell; or,

[0092] In response to a second adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the resource allocation information of the first terminal device is adjusted.

[0093] In some embodiments, for narrow beam, the processor is further configured to execute:

[0094] Receiving the resource configuration information of a third terminal device in the second neighbor cell and located in an edge band of the second neighbor cell, which is sent by a second neighbor cell;

[0095] Performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device to obtain location information of the third terminal device;

[0096] Determine, based on the location information of the third terminal device, a fourth terminal device in the local cell that is located in the beam interference area of ​​the third terminal device;

[0097] Adjust the resource allocation information of the fourth terminal device and / or instruct the second neighbor cell to adjust the resource allocation information of the third terminal device.

[0098] In some embodiments, the location information includes a horizontal angle and a vertical angle of arrival, and the processor executes the step of determining, based on the location information of the third terminal device, a fourth terminal device in the cell that is located in a beam interference area of ​​the third terminal device, including:

[0099] Determine a horizontal angle difference and a vertical arrival angle difference between the third terminal device and the fourth terminal device;

[0100] If the horizontal angle difference is less than a first angle threshold and the vertical arrival angle difference is less than a second angle threshold, it is determined that the fourth terminal device is located within the beam interference area of ​​the third terminal device.

[0101] In some embodiments, before performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device, the processor is further configured to execute:

[0102] If there is a fifth terminal device in the present cell and the resource configuration information of the third terminal device is repeated, the resource configuration information of the fifth terminal device is adjusted and / or the second neighboring cell is instructed to adjust the resource configuration information of the third terminal device.

[0103] In some embodiments, the processor is further configured to execute:

[0104] If the first terminal device moves from the central band of the local cell to the edge band of the local cell, restricting the time-frequency domain resources of the first terminal device;

[0105] The time-frequency domain resources include uplink time-frequency domain resources and / or downlink time-frequency domain resources.

[0106] In some embodiments, the processor is further configured to execute:

[0107] If the first terminal device moves from the edge band of the cell to the center band of the cell, the restriction on the time-frequency domain resources of the first terminal device is lifted.

[0108] In some embodiments, the processor executes the restriction on the time-frequency domain resources of the first terminal device, including: reducing the time-frequency domain resources of the first terminal device and / or adjusting the time domain configuration of the time-frequency domain resources.

[0109] In some embodiments, the processor is further configured to execute:

[0110] If the first terminal device switches to the first neighboring cell, identifying a sixth terminal device located in an edge band of the cell and in a beam interference area of ​​the first terminal device based on the resource configuration information of the first terminal device;

[0111] Adjust the resource allocation information of the sixth terminal device, and / or instruct the first neighbor cell to adjust the resource allocation information of the first terminal device.

[0112] In some embodiments, the processor executes the step of identifying a first terminal device located in an edge band of a cell, including:

[0113] Receiving a reference signal quality measurement report sent by the first terminal device; wherein the reference signal quality measurement report is sent by the first terminal device when it is determined to be in the edge band based on the reference signal quality of the local cell and the reference signal quality of the neighboring cell;

[0114] The first terminal device is regionally positioned based on the reference signal quality measurement report.

[0115] In some embodiments, the reference signal quality measurement report includes at least one interfered neighbor cell, and the first neighbor cell is any neighbor cell among the at least one interfered neighbor cell.

[0116] In some embodiments, the processor performs the regional positioning of the first terminal device based on the reference signal quality measurement report, including:

[0117] When the reference signal quality of the first neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is less than a signal quality threshold, it is determined that the first terminal device is located in the edge band of the current cell.

[0118] In some embodiments, the processor executes the performing of regional positioning based on the reference signal quality measurement report, including:

[0119] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, it is determined that the first terminal device is located in the center band of the current cell.

[0120] In some embodiments, the processor is further configured to execute:

[0121] Instruct the first neighboring cell to keep the terminal resource information of the first terminal device unchanged if the first terminal device switches to the first neighboring cell.

[0122] In some embodiments, for a wide beam, before exchanging terminal resource information for beam interference coordination with the first neighbor cell, the processor is further configured to execute:

[0123] Determining that the reference signal qualities of the current cell and the first neighboring cell are both higher than an interference threshold, and that a reference signal quality difference is lower than a set threshold;

[0124] If the terminal resource information includes resource configuration information for a dedicated purpose of the first terminal device and resource allocation information of a service channel of the first terminal device, the terminal resource information for interacting with the first neighboring cell for beam interference coordination includes:

[0125] The resource configuration information of the first terminal device and the resource allocation information of the first terminal device are sent to the first neighbor cell to instruct the first neighbor cell to execute: reconfigure the resource configuration information of the seventh terminal device in the first neighbor cell that is identical to the resource configuration information of the first terminal device and adjust the reconfiguration resource allocation information of the eighth terminal device in the first neighbor cell that overlaps with the resource allocation information of the first terminal device.

[0126] In some embodiments, for a wide beam, the processor executing the step of interacting with the first neighbor cell for terminal resource information for beam interference coordination includes:

[0127] Based on a third adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the terminal resource information of the first terminal device is adjusted.

[0128] In a fourth aspect, an embodiment of the present application further provides a terminal device, the terminal device comprising: a processor, a memory, and a transceiver;

[0129] Memory for storing computer programs;

[0130] a transceiver, for transmitting and receiving data under the control of the processor;

[0131] A processor is configured to read the computer program in the memory and perform the following operations:

[0132] Measuring the reference signal quality of the serving cell and neighboring cells;

[0133] If it is determined to be in the edge band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cell, a reference signal quality measurement report is sent to the serving cell so that the serving cell and the neighboring cell exchange resource configuration information of the terminal device for inter-cell interference coordination.

[0134] In some embodiments, the processor performs the step of determining the edge band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cell, including:

[0135] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is less than a signal quality threshold, the edge band located in the serving cell is determined.

[0136] In some embodiments, after measuring the reference signal qualities of the serving cell and the neighboring cell, the processor is further configured to execute:

[0137] If it is determined based on the reference signal qualities of the serving cell and the neighboring cells that the terminal device is in the center band of the serving cell, a reference signal quality measurement report is reported to the serving cell so that the serving cell removes resource restrictions on the terminal device.

[0138] In some embodiments, the processor performs the determination based on the reference signal qualities of the serving cell and the neighboring cell that the cell is in the center band of the serving cell, including:

[0139] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, the center band located in the serving cell is determined.

[0140] In a fifth aspect, an embodiment of the present application further provides a network side device, the network side device comprising:

[0141] An identification module, used to identify a first terminal device located in an edge zone of a cell;

[0142] The interference coordination module is used to interact with the first neighbor cell for the terminal resource information used for interference coordination for the first terminal device.

[0143] In some embodiments, the terminal resource information includes resource configuration information for exclusive use of the terminal device and / or resource allocation information for a service channel of the terminal device.

[0144] In some embodiments, for narrow beams, the terminal resource information that is interacted includes the resource configuration information of the first terminal device;

[0145] The interference coordination module is used to:

[0146] Sending the resource configuration information of the first terminal device to the first neighboring cell to instruct the first neighboring cell to perform the following operations: performing a positioning operation on the first terminal device based on the resource configuration information of the first terminal device and determining whether there is a second terminal device having beam interference with the first terminal device in the first neighboring cell based on the positioning result;

[0147] The interference coordination module is also used for:

[0148] In response to a first interference indication sent by the first neighboring cell for the first terminal device, sending resource allocation information of the first terminal device to the first neighboring cell; or,

[0149] In response to a second adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the resource allocation information of the first terminal device is adjusted.

[0150] In some embodiments, for narrow beams, the interference coordination module is further configured to:

[0151] Receiving the resource configuration information of a third terminal device in the second neighbor cell and located in an edge band of the second neighbor cell, which is sent by a second neighbor cell;

[0152] Performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device to obtain location information of the third terminal device;

[0153] Determine, based on the location information of the third terminal device, a fourth terminal device in the local cell that is located in the beam interference area of ​​the third terminal device;

[0154] Adjust the resource allocation information of the fourth terminal device and / or instruct the second neighbor cell to adjust the resource allocation information of the third terminal device.

[0155] In some embodiments, the location information includes a horizontal angle and a vertical angle of arrival, and the interference coordination module determines a fourth terminal device in the cell located in a beam interference area of ​​the third terminal device based on the location information of the third terminal device, including:

[0156] Determine a horizontal angle difference and a vertical arrival angle difference between the third terminal device and the fourth terminal device;

[0157] If the horizontal angle difference is less than a first angle threshold and the vertical arrival angle difference is less than a second angle threshold, it is determined that the fourth terminal device is located within the beam interference area of ​​the third terminal device.

[0158] In some embodiments, before performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device, the interference coordination module is further used to:

[0159] If there is a fifth terminal device in the present cell and the resource configuration information of the third terminal device is repeated, the resource configuration information of the fifth terminal device is adjusted and / or the second neighboring cell is instructed to adjust the resource configuration information of the third terminal device.

[0160] In some embodiments, the network side device further includes:

[0161] A resource adjustment module, configured to restrict the time-frequency domain resources of the first terminal device if the first terminal device moves from the central band of the cell to the edge band of the cell;

[0162] The time-frequency domain resources include uplink time-frequency domain resources and / or downlink time-frequency domain resources.

[0163] In some embodiments, the resource adjustment module is further configured to:

[0164] If the first terminal device moves from the edge band of the cell to the center band of the cell, the restriction on the time-frequency domain resources of the first terminal device is lifted.

[0165] In some embodiments, the restriction on the time-frequency domain resources of the first terminal device includes: reducing the time-frequency domain resources of the first terminal device and / or adjusting the time domain configuration of the time-frequency domain resources.

[0166] In some embodiments, the interference coordination module is further configured to:

[0167] If the first terminal device switches to the first neighboring cell, identifying a sixth terminal device located in an edge band of the cell and in a beam interference area of ​​the first terminal device based on the resource configuration information of the first terminal device;

[0168] Adjust the resource allocation information of the sixth terminal device, and / or instruct the first neighbor cell to adjust the resource allocation information of the first terminal device.

[0169] In some embodiments, the identification module is used to:

[0170] Receiving a reference signal quality measurement report sent by the first terminal device; wherein the reference signal quality measurement report is sent by the first terminal device when it is determined to be in the edge band based on the reference signal quality of the local cell and the reference signal quality of the neighboring cell;

[0171] The first terminal device is regionally positioned based on the reference signal quality measurement report.

[0172] In some embodiments, the reference signal quality measurement report includes at least one interfered neighbor cell, and the first neighbor cell is any neighbor cell among the at least one interfered neighbor cell.

[0173] In some embodiments, the identification module performs the regional positioning of the first terminal device based on the reference signal quality measurement report, including:

[0174] When the reference signal quality of the first neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is less than a signal quality threshold, it is determined that the first terminal device is located in the edge band of the current cell.

[0175] In some embodiments, the identification module performs the regional positioning based on the reference signal quality measurement report, including:

[0176] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, it is determined that the first terminal device is located in the center band of the current cell.

[0177] In some embodiments, the interference coordination module is further configured to:

[0178] Instruct the first neighboring cell to keep the terminal resource information of the first terminal device unchanged if the first terminal device switches to the first neighboring cell.

[0179] In some embodiments, for a wide beam, before exchanging terminal resource information for beam interference coordination with the first neighbor cell, the interference coordination module is further configured to:

[0180] Determining that the reference signal qualities of the current cell and the first neighboring cell are both higher than an interference threshold, and that a reference signal quality difference is lower than a set threshold;

[0181] If the terminal resource information includes resource configuration information for a dedicated purpose of the first terminal device and resource allocation information of a service channel of the first terminal device, the terminal resource information for interacting with the first neighboring cell for beam interference coordination includes:

[0182] The resource configuration information of the first terminal device and the resource allocation information of the first terminal device are sent to the first neighbor cell to instruct the first neighbor cell to execute: reconfigure the resource configuration information of the seventh terminal device in the first neighbor cell that is identical to the resource configuration information of the first terminal device and adjust the reconfiguration resource allocation information of the eighth terminal device in the first neighbor cell that overlaps with the resource allocation information of the first terminal device.

[0183] In some embodiments, for a wide beam, the interference coordination module executing the interaction with the first neighbor cell for terminal resource information for beam interference coordination includes:

[0184] Based on a third adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the terminal resource information of the first terminal device is adjusted.

[0185] In a sixth aspect, an embodiment of the present application further provides a terminal device, the terminal device comprising:

[0186] A measurement module, used to measure the reference signal quality of the serving cell and the neighboring cell;

[0187] The area determination module is used to send a reference signal quality measurement report to the serving cell if it is determined to be in the edge band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cell, so that the serving cell and the neighboring cell exchange resource configuration information of the terminal device to perform inter-cell interference coordination.

[0188] In some embodiments, the area determination module performs the determination based on the reference signal qualities of the serving cell and the neighboring cell to be in the edge zone of the serving cell, including:

[0189] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is less than a signal quality threshold, the edge band located in the serving cell is determined.

[0190] In some embodiments, after measuring the reference signal qualities of the serving cell and the neighboring cell, the area determination module is further configured to:

[0191] If it is determined based on the reference signal qualities of the serving cell and the neighboring cells that the terminal device is in the center band of the serving cell, a reference signal quality measurement report is reported to the serving cell so that the serving cell removes resource restrictions on the terminal device.

[0192] In some embodiments, the area determination module performs the determination based on the reference signal qualities of the serving cell and the neighboring cell to be in the center zone of the serving cell, including:

[0193] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, the center band located in the serving cell is determined.

[0194] In the seventh aspect, an embodiment of the present application further provides a computer-storable medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the methods described in the first aspect or the second aspect.

[0195] In addition, the technical effects brought about by any implementation method in the second to seventh aspects can refer to the technical effects brought about by different implementation methods in the first aspect, and will not be repeated here.

[0196] These and other aspects of the present application will become more clearly understood in the description of the following embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0197] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0198] Figure 1 The intention of the inter-cell interference provided in the embodiments of the present application;

[0199] Figure 2 A schematic diagram of the cell area division provided in an embodiment of the present application;

[0200] Figure 3 A flowchart of an inter-cell interference coordination method provided in an embodiment of the present application;

[0201] Figure 4 A schematic diagram of managing terminal device resources provided in an embodiment of the present application;

[0202] Figure 5A Another schematic diagram of inter-cell interference provided in an embodiment of the present application;

[0203] Figure 5B Another schematic diagram of inter-cell interference provided in an embodiment of the present application;

[0204] Figure 6 A schematic diagram of uplink interference of terminals in different cells provided in an embodiment of the present application;

[0205] Figure 7 A schematic diagram of a terminal device switching a cell provided in an embodiment of the present application;

[0206] Figure 8-Figure 13 A schematic diagram of the process of inter-cell interference coordination provided in an embodiment of the present application;

[0207] Fig.14 A schematic diagram of the structure of a network side device provided in an embodiment of the present application;

[0208] Fig.15 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0209] Fig.16 Another schematic diagram of the structure of the network side device provided in the embodiment of the present application;

[0210] Fig.17 Another structural schematic diagram of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0211] Below, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0212] (1) In the embodiments of the present application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand their meanings.

[0213] (2) In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0214] (3) “And / or” describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character “ / ” generally indicates that the associated objects are in an “or” relationship.

[0215] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of 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 (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network side equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0216] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0217] The network side device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network side device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network side device may also coordinate the attribute management of the air interface. For example, the network side device involved in the embodiments of the present application may be a network side device (Base TransceiverStation, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network side device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network side device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network side device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0218] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can appreciate that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0219] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0220] First, for ease of understanding, the relevant technology is analyzed and explained below. It should be understood that the analysis of the relevant technology below also belongs to a part of the embodiments of the present application.

[0221] Inter-cell interference will occur when the terminal devices of two cells are close to each other. The inventors have found that in the networking scenario using large-scale multi-antennas, the downlink service channel uses beamforming technology to concentrate energy, and the beam of the service channel can easily exceed the cell coverage range to enter the neighboring area, so it is more likely to cause inter-cell beam interference, especially in the scenario where multiple UEs queue up to switch on the same line. There is currently no effective inter-cell interference coordination solution. For example, in the scenario where multiple terminals queue up for cell switching, multiple terminals will sequentially enter the boundary of the cell to generate beam interference, and the related technology only avoids interference by fixed resource configuration, which cannot effectively solve the inter-cell interference in this scenario.

[0222] Furthermore, taking the large-scale multi-antenna scenario as an example, Figure 1 As shown, the rectangular box filled with stripes represents the antenna, the pure black rectangular box represents the terminal device, the ellipse represents the beam, and the hexagon represents the cell. The inventor found that when the position of the UE in cell B is close to that of the UE in cell A, the beam assigned to the UE in cell B and the beam assigned to the UE in cell A are basically facing the same direction. The UEs in the two cells at this position will be interfered by the beams from the other cell. The distance between the UE in cell B and the UE in cell C is large, and the angle between the beam directions of the two cells is large. Therefore, even if the two beams use the same time-frequency domain resources, they are spaced apart in space and will not cause beam interference.

[0223] The wide beam scenario is similar, and terminals located at the edge of the cell are prone to cause interference between cells.

[0224] Based on this, the present application proposes an inter-cell interference coordination method, device and storage medium. The inventive concept of the present application can be summarized as follows: In view of the fact that beam interference is likely to occur at a terminal located at the edge of a cell, the present application embodiment divides the cell into different areas, such as Figure 2As shown, the rectangular box filled with stripes represents the antenna, the pure black rectangular box represents the terminal equipment, the ellipse represents the beam, and the hexagon represents the cell. In the embodiment of the present application, each cell may include a center band, an edge band, and a switching band. Among them, the center band and the edge band of the cell are both relatively large ranges, and the UE will stay in the center band and the edge band for a relatively long time. The switching band is used for cell switching. The switching decision is completed immediately after the switching threshold is reached, and the state transition from the current cell to the target cell is completed in a short time. Therefore, the switching band is a very small range with almost no range area width, and is only used to distinguish the boundaries of different cells. Therefore, this application focuses on how to achieve inter-cell interference coordination based on the center band and the edge band. In view of the fact that interference coordination in related technologies is limited to implementation within the cell, it is impossible to solve the interference between cells well. In this application, a mechanism for collaborative interference processing between cells based on regional positioning is proposed. For example, when a terminal device moves within a serving cell, the terminal device is regionally positioned based on the cell's downlink reference signal quality measurement report. When the positioning result shows that the terminal device enters an edge band, the serving cell can exchange the terminal resource information of the terminal device for interference coordination with the neighboring cell. The terminal resource information is, for example, resource configuration information for exclusive use of the terminal, such as resource allocation information for the terminal's service channel. Based on the terminal resource information, the terminal resource information of the terminal device can be shared with the neighboring cell to handle inter-cell interference.

[0225] It should be noted that the inter-cell interference coordination method provided in the present application is applicable to both narrow beam scenarios and wide beam scenarios. The beams here include uplink beams and / or downlink beams. In order to better coordinate inter-cell interference, in the embodiments of the present application, there will be some differentiated processing for narrow beam scenarios and wide beam scenarios. For ease of understanding, the inter-cell interference coordination method provided in the embodiments of the present application is described below in conjunction with the accompanying drawings.

[0226] like Figure 3 As shown, the flowchart of the inter-cell interference coordination method provided for the application embodiment includes:

[0227] In step 301, a first terminal device located in an edge zone of a cell is identified.

[0228] The service cell needs to perform regional positioning on any terminal device in the cell, thereby obtaining the terminal devices in the edge band and the center band.

[0229] During implementation, the first terminal device can perform regional positioning on itself, and then notify the serving cell of its arrival at the edge band when it reaches the edge band (for example, the message can explicitly notify the serving cell of the result of the judgment whether it is in the edge band), so that the serving cell recognizes that the first terminal device is in the edge band. Of course, the terminal device can also notify the serving cell based on an implicit notification method, such as the terminal device sends a reference signal quality measurement report to the serving cell, and the serving cell determines whether the first terminal device is in the edge band.

[0230] Similarly, the first terminal device can perform regional positioning on itself, and then notify the serving cell of its arrival at the center band when it reaches the center band, so that the serving cell recognizes that the first terminal device is located in the center band. Of course, the terminal device can also send information for regional positioning to the serving cell, and the serving cell recognizes whether the first terminal device is located in the center band.

[0231] For example, during implementation, the first terminal device can perform regional positioning based on the reference signal quality measurement result and then report it to the serving cell. The reference signals that can be used include but are not limited to SSB (System Synchronization Block), CRS (Cell Reference Signal), CSI RS (Channel State Information Reference Signal), etc.

[0232] The first terminal device determines that the first terminal device enters the edge band or the center band of the serving cell based on the reference signal quality measurement result, and then reports the reference signal quality measurement report to the serving cell, and then the serving cell determines whether the area where the first terminal device is located is the center band or the edge band.

[0233] In some embodiments, the judgment condition of being in the center band can be implemented as follows: when the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is greater than or equal to the signal quality threshold, it is determined to be in the center band of the serving cell.

[0234] The judgment condition of being in the edge band can be implemented as follows: when the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the difference in the reference signal quality of the two cells is less than the signal quality threshold, it is determined to be in the edge band of the serving cell.

[0235] For example, regional positioning can be achieved based on the level of the reference signal during implementation. The cell configures the corresponding measurement configuration threshold for the UE. For example, when the reference signal level of the neighboring cell is less than 3dB lower than the reference signal level of the cell, the UE reports the reference signal quality measurement report, and the serving cell determines that the UE has entered the cell edge band by receiving the measurement report of the UE. When the reference signal level of the neighboring cell is more than 3dB lower than the reference signal level of the cell, the UE reports the reference signal quality measurement report, and the serving cell determines that the UE has entered the cell center band by receiving the measurement report of the UE.

[0236] Therefore, regional positioning of the terminal device can be achieved based on the reference signal quality measurement result. The positioning method is simple and easy to implement, and multiplexing of the reference signal quality measurement result is also achieved.

[0237] Therefore, the trigger mechanism based on the terminal device's prior judgment can, when it finds that it has entered the edge band, inform the serving cell that it has entered the edge band and trigger the serving cell to perform interference coordination, thereby triggering inter-cell collaboration to perform inter-cell interference coordination under the premise of sending as few reference signal quality measurement reports as possible.

[0238] During implementation, the terminal device may periodically perform reference signal quality measurement, or determine that it performs reference signal quality measurement while in a continuously moving state, so as to timely detect entry into an edge band and a center band.

[0239] It should be noted that each neighbor cell included in the reference signal quality measurement report is a potentially interfered first neighbor cell. A similar service cell may find that multiple first terminal devices enter the edge band. The following text is described from the perspective of a first neighbor cell and a first terminal device. It should be understood that when there are multiple interfered first neighbor cells, this cell and each first neighbor cell perform inter-cell interference coordination for the first terminal device.

[0240] Therefore, the serving cell exchanges terminal resource information for interference coordination with the first neighboring cell for the first terminal device in step 302. Based on the resource information in the exchange, the serving cell can interact and collaborate with the interfered first neighboring cell to perform inter-cell interference coordination.

[0241] In the embodiment of the present application, the terminal resource information includes resource configuration information for a dedicated purpose of the terminal device and / or resource allocation information for a service channel of the terminal device, wherein:

[0242] The resource configuration information in the embodiment of the present application refers to the UE-level dedicated resource configuration performed by the serving cell on the UE, including, for example: SRS resource configuration, SR resource configuration, etc. The cell configures limited time-frequency domain configuration resources to the UE for dedicated use. In the related art, since there is no interaction of resource configuration information between cells, the resource configuration information of the two cells for the UE may be repeated. When a UE with duplicate resource configurations in the serving cell and the neighboring cell approaches the neighboring cell, it will interfere with the reception of the neighboring cell (uplink interference), affecting this part of the dedicated use;

[0243] In the embodiment of the present application, resource allocation information refers to the allocation and utilization of time-frequency domain resources of the cell for the UE's service channel. Through real-time exchange of resource allocation information between cells, the resource allocation of UEs between cells is staggered, that is, different time-frequency domain resources are allocated to avoid interference.

[0244] Since each cell independently manages the terminal resource information of the terminal devices in the cell, the terminal devices in different cells located in the edge band may have overlapping resource allocation information and / or repeated resource configuration information, which will cause inter-cell interference. Therefore, in the embodiment of the present application, the serving cell and the first neighboring cell can appropriately share the terminal resource information of the interfered terminal device, so that the terminal resource information of the two cells is staggered to avoid inter-cell interference.

[0245] In order to facilitate the staggering of terminal resource information of different terminal devices, in the embodiment of the present application, when the serving cell determines that the first terminal device enters the edge band, it can limit the time-frequency domain resources used by the first terminal device. Thus, when the resources of different terminal devices are staggered, there is a relatively wide adjustment space, which is convenient for inter-cell interference coordination.

[0246] During implementation, the limitation of time-frequency domain resources may be implemented to include: reducing the time-frequency domain resources of the first terminal device and / or adjusting the time-domain configuration of the time-frequency domain resources. Thus, resources can be reconfigured in the frequency domain and / or time domain, thereby improving the flexibility of resource reconfiguration.

[0247] For example Figure 4 As shown in FIG. 1 , when the UE enters the cell edge, the uplink and downlink resource allocation of the UE is restricted. For example, when the UE is in the center band of the cell, all time-frequency domain resources can be scheduled to the UE. When the UE enters the edge band, some time-frequency domain resources can be scheduled to the UE. In order to avoid interference, different UEs in the edge band of the same cell can have different time-frequency domain resources. Figure 4 The time-frequency domain resources that can be scheduled for two UEs in the edge band of cell B are different. Moreover, the time-frequency domain resources that can be scheduled for different UEs in adjacent edge bands of different cells are also different. For example, Figure 4In the adjacent edge band between cells A and B, UEs in the edge band of cell A and UEs in the edge band of cell B use different time-frequency domain resources. In the adjacent edge band of cell BC, terminals in cells B and C have different schedulable time-frequency domain resources.

[0248] Correspondingly, in order to ensure the communication quality of the UE in the embodiment of the present application, it is also possible to monitor whether the UE enters the center band from the edge band through regional positioning, so as to promptly lift the time-frequency domain resource restrictions on the UE.

[0249] Restricting the uplink and downlink resource allocation of the UE not only facilitates the staggered resource allocation between cells, but also has the following effects: in the existing large-scale antenna beamforming technology networking environment, due to the multi-antenna gain, the downlink coverage area is farther, and there will be very high requirements for the UE uplink transmission power. Since most commercial UEs currently do not have uplink shaping transmission capabilities, limited uplink transmission is a common problem at present; in addition, when the downlink UE at the edge of the cell occupies a large frequency domain resource, the beam hitting the outer circle will easily interfere with the beam of the inner circle, which will cause the downlink allocation resources of the UE in the center of the cell near the beam direction to be limited. In the embodiment of the present application, when the UE enters the edge of the cell, the resources will be compressed and allocated to reduce the uplink and downlink frequency domain resources used by the UE, or the scheduling will be staggered in the time domain. Therefore, under the same uplink transmission power, using fewer frequency domain resources will obtain higher average power, which will better improve the uplink reception performance; for the downlink, limiting the frequency domain resources of the downlink edge UE is conducive to allocating more resources to the UE in the center of the cell in the beam direction.

[0250] During implementation, the resource restrictions for wide beams and narrow beams are handled in the same way. However, in order to effectively coordinate inter-cell interference, the way different cells collaborate to coordinate inter-cell interference can be divided into two different scenarios: narrow beam and wide beam, which are explained separately.

[0251] 1. Narrow beam scenario before switching cells

[0252] When the terminal devices in different cells are close to each other in a narrow beam scenario, beam interference is likely to occur because the beam directions are almost consistent. Therefore, the embodiment of the present application adds a position positioning function based on the above area positioning. Based on the position positioning results, the interfered terminal devices can be identified, and beam interference coordination can be performed on the interfered terminal devices.

[0253] In the related art, since there is no interaction of resource configuration information between cells, the configuration resources of two cells for UEs may overlap and repeat. When a UE with overlapping resources in the serving cell and the neighboring cell approaches the neighboring cell, it will interfere with the reception of the neighboring cell (uplink interference), affecting this part of the exclusive use. Therefore, before locating the terminal device, the terminal device with repeated resource configuration information is adjusted to stagger the resource configuration information.

[0254] In order to share the terminal resource information of the terminal device with the neighboring cell and facilitate the coordinated interference between different cells, in the embodiment of the present application, the implementation method of transmitting resource allocation information and / or resource allocation information between cells is described as follows:

[0255] Implementation method 1: The serving cell transmits resource configuration information of the first terminal device to the first neighboring cell:

[0256] When the serving cell finds that the terminal device is located at the edge of the cell, the resource configuration information of the terminal device can be sent to the neighboring cell so that the neighboring cell can locate the terminal device. As mentioned above, the resource configuration information includes, for example: SRS (Sounding Reference Signal, channel sounding reference signal) resource configuration, SR (Scheduling Request, scheduling request) resource configuration, etc.

[0257] In some embodiments, the interference position judgment of the base station to the terminal in the embodiments of the present application can be determined based on the SRS measurement results. Therefore, it is necessary to exchange the SRS resource configuration information of the UE between cells to avoid duplication of resource configuration information and ensure the accuracy of the SRS measurement.

[0258] Continuing with the first neighbor cell in the previous text as an example, the service cell of the first terminal device sends the resource configuration information of the first terminal device to the first neighbor cell. Afterwards, in order to better identify interference based on the resource configuration information of the first terminal device, the first neighbor cell identifies whether there is a resource duplication terminal device in the first neighbor cell that duplicates the resource configuration information of the first terminal device. If so, the resource configuration information of the resource duplication terminal device is adjusted and / or the service cell of the first terminal device is instructed to adjust the resource configuration information of the first terminal device.

[0259] If there is no resource duplication terminal device or the resource configuration information is staggered through adjustment, the first neighboring cell performs a positioning operation on the first terminal device based on the resource configuration information of the first terminal device, so that the first neighboring cell can obtain and determine the second terminal device located in the beam interference area of ​​the first terminal device in the first neighboring cell based on the positioning result, and then the first neighboring cell understands the interfered second terminal device and facilitates interference coordination. It may include:

[0260] (1) The first neighboring cell requests the serving cell of the first terminal device to transmit the resource allocation information of the first terminal device to the first neighboring cell, and the first neighboring cell can stagger the allocation of the resource allocation information of the second terminal device.

[0261] For example, the first neighbor cell sends a first interference indication to the serving cell, and the serving cell sends resource allocation information of the first terminal device to the first neighbor cell in response to the first interference indication.

[0262] (2) The first neighboring cell sends a second adjustment instruction to the serving cell, and the serving cell shifts the resource allocation information of the first terminal device.

[0263] For example, the second adjustment indication may be in the form of the first neighbor cell transmitting the resource allocation information of the second terminal device to the serving cell, so that the serving cell adjusts the resource allocation information of the first terminal device.

[0264] For another example, the second adjustment indication may be in the form of the first neighbor cell notifying the serving cell of the first terminal device of the resource allocation information available for the first terminal device.

[0265] When the first neighbor cell determines that it cannot stagger the resource allocation information of the second terminal device, the first neighbor cell may request the serving cell of the first terminal device to adjust the resource allocation information of the first terminal device.

[0266] The specific indication method of the second adjustment indication can be based on business requirements or predefined rules. As long as the resource allocation information of the first terminal device and the second terminal device can be staggered, it is applicable to the embodiments of the present application.

[0267] Therefore, for narrow beams, the base station can rely on the SRS measurement results to determine the interference position of the terminal. Therefore, it is necessary to exchange the SRS resource configuration information of the UE between cells. In this embodiment, the cell actively transmits the resource configuration information of the terminal entering the edge band to the neighboring cell, so that the neighboring cell can accurately determine the terminal device with interference through position positioning, and adjust the resource configuration of repeated or overlapping resources in a targeted manner, thereby avoiding interference between cells.

[0268] Implementation method 2: The serving cell transmits resource configuration information of the first terminal device and resource allocation information of the first terminal device to the first neighboring cell:

[0269] As described in the scheme (1) of the implementation method 1 described above, it is equivalent to implementing the resource configuration information and resource allocation information of the first terminal device to be sent to the first service cell. I will not repeat it here, but it should be noted that in addition to sending the resource configuration information and resource allocation information of the first terminal device to the first neighboring cell separately in the above text, in the embodiment of the present application, when the service cell finds that the first terminal device is in the edge band, it can simultaneously send the resource configuration information and resource allocation information of the first terminal device to the first neighboring cell, and then perform interference coordination processing.

[0270] Therefore, for narrow beams, the base station can rely on the SRS measurement results to determine the interference position of the terminal. Therefore, based on the resource configuration information of the terminal with potential beam interference transmitted by the neighboring cell, this cell can identify the beam interference area based on this information, and then accurately determine the terminal device with interference, and make targeted adjustments to the resource configuration of duplication or overlap, so as to avoid interference between cells.

[0271] Implementation method 3, the serving cell transmits resource allocation information of the first terminal device to the first neighboring cell:

[0272] A possible implementation (1) is most different from implementation 1 in that the second terminal device in the beam interference area is identified by the serving cell instead of the first neighbor cell.

[0273] When the serving cell finds that the first terminal device is located in the edge band, it can instruct the first neighboring cell to send the configuration information of each candidate terminal device in the edge band of the first neighboring cell adjacent to the serving cell to the serving cell. The serving cell performs positioning operations on the first terminal device and the interfered terminal device, determines whether there is an interfered second terminal device located in the beam interference area of ​​the first terminal device among the candidate terminal devices, and then performs interference coordination processing. If the serving cell transmits the resource allocation information of the first terminal device to the first neighboring cell, the first neighboring cell staggers the resource allocation.

[0274] In a possible implementation (2), when the serving cell finds that the first terminal device is located in the edge band, the serving cell may locate the first terminal device and indicate the location information of the first terminal device to the first neighboring cell, which then identifies the interference area and finds the interfered second terminal device.

[0275] After discovering the interfered second terminal device, the first neighbor cell indicates to the serving cell that there is interference with the first terminal device, so that the serving cell can transmit the resource allocation information of the first terminal device to the first neighbor cell, and the first neighbor cell staggers the resource allocation information of the second terminal device.

[0276] Optionally, the serving cell may also indicate resource allocation information available to the second terminal device of the first neighboring cell so that the first neighboring cell can allocate the resource allocation information available to the second terminal device to the second terminal device, thereby achieving staggered resource configuration with the first terminal device.

[0277] From the description of implementation modes 1 to 3, it can be seen that as long as the resource allocation information of the first terminal device and the resource allocation information of the second terminal device can be staggered, the staggering can be implemented by the service cell of the first terminal device or by the interfered neighboring cell.

[0278] Similarly, the above implementation modes 1 to 3 are described based on the perspective of the first neighboring cell, and the operations performed on the serving cell of the first terminal device are similar to those of the first neighboring cell. For example, the serving cell may perform:

[0279] Receive the resource configuration information of a third terminal device in the second neighbor cell and located in the edge band of the second neighbor cell sent by the second neighbor cell; perform a positioning operation on the third terminal device based on the resource configuration information of the third terminal device to obtain the location information of the third terminal device; determine a fourth terminal device in the cell that is located in the beam interference area of ​​the third terminal device based on the location information of the third terminal device; adjust the resource allocation information of the fourth terminal device and / or instruct the second neighbor cell to adjust the resource allocation information of the third terminal device. In this embodiment, by avoiding repeated configuration of resource configuration information, interference caused by repeated resource configuration information can be avoided, and positioning accuracy can also be improved.

[0280] Since there is no essential difference between the serving cell and the first neighboring cell in terms of execution, no further description is given. The following describes how the serving cell identifies the beam interference identification area. It can be implemented as follows:

[0281] Determine a horizontal angle difference and a vertical arrival angle difference between the third terminal device and the fourth terminal device;

[0282] If the horizontal angle difference is less than a first angle threshold and the vertical arrival angle difference is less than a second angle threshold, it is determined that the fourth terminal device is located within the beam interference area of ​​the third terminal device.

[0283] In this embodiment, the vertical arrival angle and the horizontal arrival angle obtained based on positioning can accurately measure whether the terminal in the edge band generates interference to the neighboring area, so as to facilitate subsequent accurate interference coordination processing.

[0284] Beam interference area identification Figure 5A As shown, the triangular area is the beam interference area of ​​UE2, and UE1 of cell A is located in the beam interference area of ​​UE2 of cell B, so the terminal resource information of UE1 and / or UE2 needs to be adjusted to stagger the terminal resource information of UE1 and UE2.

[0285] In one implementation mode, when UE2 reports the cell edge where it is located through a reference information quality strategy report, cell B can also determine which neighboring cells UE2 is close to through measurement reports, so that the resource configuration information (including SRS configuration) of UE2 can be accurately sent to the neighboring cells where interference may exist. Since UE2 is in the cell edge band close to the neighboring cells at this time, the neighboring cells can perform channel estimation analysis on the SRS measurement of UE2 to determine whether the UE position of this cell is close to the UE position, that is, determine whether the UE of this cell is in the beam interference area, so that the next step of interference coordination processing can be performed.

[0286] like Figure 5A As shown, it is a schematic diagram of SRS measurement of uplink interference UE. Figure 5A In the example, the resource configuration information of the UE located in the edge band is shared with the corresponding neighboring cells. Then the corresponding neighboring cells and the serving cell can implement the location strategy for the UE. Figure 5A As shown, cell A and cell B share the SRS configuration of UE1 and UE2, so both cell A and cell B can locate UE1 and UE2.

[0287] In contrast, a UE located in the center band of cell C performs SRS measurement by cell C. Similarly, a UE located in the center band of cell A performs SRS measurement by cell A.

[0288] like Figure 5B As shown. For the determination of the beam interference area, it can be implemented as follows: when the horizontal and vertical arrival angles of the UE at the edge of the neighboring cell are within the corresponding angle thresholds compared to the horizontal and vertical arrival angles of the UE in this cell, the UE in the neighboring cell is considered to be in the beam interference area. The determination threshold of the specific beam interference area can also be set comprehensively considering factors such as station height and coverage downtilt angle. During implementation, the horizontal angle difference and the vertical arrival angle difference can be the same or different. For example, when they are different, the angle threshold of the horizontal angle difference can be set to the first angle threshold, and the angle threshold of the vertical arrival angle difference can be set to the second angle threshold. When they are the same, the angle threshold can be set to within 3°.

[0289] Therefore, the resource configuration information of the terminal equipment interacting between cells can be used to locate the terminal in the neighboring cell, and then identify the interfered terminal equipment in the cell, so as to facilitate the subsequent beam interference coordination.

[0290] In the identification of the beam interference area, it is necessary to stagger the resource configuration information of the terminal. For example, for the serving cell, if there is a fifth terminal device in the present cell and the resource configuration information of the third terminal device is repeated, the resource configuration information of the fifth terminal device is adjusted and / or the second neighboring cell is instructed to adjust the resource configuration information of the third terminal device. That is, staggered processing of the resource configuration information is achieved.

[0291] It should be noted that the inter-cell interference coordination implementation solution provided in the embodiment of the present application is not only applicable to downlink narrow beam interference, but also applicable to uplink narrow beam interference coordination.

[0292] The above embodiments are described from the perspective of a first terminal device. When there are multiple first terminal devices in the service cell at the same time, the service cell can transmit the terminal resource information of these multiple first terminal devices to the first neighbor cell. The first neighbor cell determines all terminal devices interfered by the first terminal device, and then staggers the resource configuration information and resource allocation information of these terminal devices with the corresponding first terminal devices.

[0293] 2. Wide beam scenario before switching cells

[0294] Unlike narrow beam interference identification, wide beam interference judgment is not determined by whether there is an interfered terminal in the beam interference area, but by the downlink reference signal quality of the UE in the serving cell and the neighboring cell. The reason for this difference is that the wide beam scenario needs to fully consider factors such as the station spacing. When the station spacing is large, even if the UE enters the neighboring cell close to the edge band of the cell, it cannot cause obvious interference. Therefore, when performing wide beam interference identification, in addition to determining whether it is in the edge band by using the reference signal quality of the cell and the neighboring cell to locate the area, the absolute value of the reference signal quality of the cell and the neighboring cell in the UE reference signal quality measurement report is used to determine the inter-station coverage of the two cells. For example, when the absolute level and relative level of the reference signal quality of the two cells reach the corresponding threshold, it is more reasonable to determine whether there is interference between the cells. For example, the implementation method of interference identification by the serving cell of the first terminal device is as follows:

[0295] Determine whether the respective reference signal qualities of the current cell and the first neighbor cell are both higher than the interference threshold, and whether the reference signal quality difference is lower than the set threshold; if the respective reference signal qualities of the current cell and the first neighbor cell are both higher than the interference threshold and the reference signal quality difference is lower than the set threshold, it is determined that interference exists.

[0296] Taking the uplink wide beam as an example, the uplink interference judgment threshold is -80dBm. When the UE is at the edge band of cell A, the measured levels of cells A and B are -95dBm and -98dBm, which are lower than the threshold of -80dBm. It is considered that the UE is far away from the two base stations, the uplink interference is weak, and there is no need to perform inter-cell interference coordination. When the UE is at the edge band of cell A, the measured levels of cells A and B are -75dBm and -78dBm, which are higher than the threshold of -80dBm, it is considered that the UE is close to the two base stations, the uplink interference is strong, and interference coordination is required.

[0297] During implementation, the interference identification may be performed by the serving cell of the first terminal device, or the serving cell may transmit the reference signal measurement report of the first terminal device to the first neighboring cell, and then the first neighboring cell compares the reference signal quality with the interference threshold, and compares the reference signal quality difference with the set threshold, thereby achieving interference identification. Regardless of which cell performs interference identification, the manner in which the serving cell and the first neighboring cell implement interference processing through interaction may include:

[0298] Implementation method 1: The serving cell transmits the resource allocation information and resource configuration information of the first terminal device to the first neighboring cell to implement interference processing

[0299] Taking the serving cell of the first terminal device as an example, the subsequent processing method of interference coordination may be implemented as follows: sending the resource configuration information of the first terminal device and the resource allocation information of the first terminal device to the first neighboring cell to instruct the first neighboring cell to perform:

[0300] Identify the seventh terminal device having the same resource configuration information as the first terminal device, and then reconfigure the resource configuration information of the seventh terminal device having the same resource configuration information as the first terminal device within the first neighboring cell; identify the eighth terminal device having overlapping resource allocation information with the first terminal device, and then adjust the reconfiguration resource allocation information of the eighth terminal device having overlapping resource allocation information with the first terminal device within the first neighboring cell.

[0301] Thus, inter-cell interference processing is achieved by transmitting the resource allocation information and resource configuration information of the first terminal device.

[0302] Implementation method 2: the serving cell transmits the resource configuration information of the first terminal device to the first neighboring cell

[0303] In this implementation, the serving cell transmits the resource configuration information of the first terminal device to the first neighboring cell, and the first neighboring cell staggers the resource configuration information with the first terminal device.

[0304] The staggering of resource allocation information can be performed by the serving cell. For example, the first neighboring cell can determine that there is inter-cell interference based on the resource configuration information of the first terminal device sent by the serving cell. The first neighboring cell will then pass the resource allocation information of the terminal device in the edge band adjacent to the serving cell to the serving cell, or pass the resource allocation information that can be used by the first terminal device to the serving cell, and then the serving cell will stagger the resource allocation information of different terminal devices affected by the interference.

[0305] Implementation method 3: the serving cell transmits the resource allocation information of the first terminal device to the first neighboring cell

[0306] In this implementation, the serving cell transmits the resource allocation information of the first terminal device to the first neighboring cell, and the first neighboring cell staggers the resource allocation information with the first terminal device.

[0307] The staggering of resource configuration information can be performed by the serving cell. For example, the first neighboring cell can determine that there is inter-cell interference based on the resource configuration information of the first terminal device sent by the serving cell. The first neighboring cell will then pass the resource configuration information of the terminal device in the edge band adjacent to the serving cell to the serving cell, or pass the resource configuration information that can be used by the first terminal device to the serving cell, and then the serving cell will stagger the resource configuration information of different terminal devices affected by the interference.

[0308] Implementation method 4: the serving cell transmits the resource allocation information of the first terminal device to the first neighboring cell

[0309] The first neighbor cell sends a third adjustment indication for the terminal resource information of the first terminal device to the serving cell, and the serving cell adjusts the terminal resource information of the first terminal device based on the third adjustment indication.

[0310] The third adjustment indication may indicate resource configuration information and resource allocation information that can be adopted by the first terminal device. The third adjustment indication may also indicate resource configuration information and resource allocation information that cannot be adopted by the first terminal device. In short, as long as it can prompt the serving cell to stagger the terminal resource information, the embodiments of the present application are not limited to this.

[0311] like Figure 6 The figure shows the schematic diagram of interference coordination for uplink wide beam scenario. Figure 6 When UE1 of cell A enters the cell edge and approaches cell B, serving cell A notifies cell B of resource allocation information including uplink resource allocation of UE1. When UE3 of cell C enters the cell edge and approaches cell B, serving cell C notifies cell B of resource allocation information including uplink resource allocation of UE3. Cell B adjusts and staggers the uplink resource allocation of UE2 in its own cell based on the resource allocation information received from cells A and C. At the same time, cell B can also reversely notify cell A and cell C of the resource allocation information of cell B, so that cell A and cell C can make reasonable adjustments to the resource allocation for the cell edge UEs of their respective cells. Figure 6 The dashed arrows in the middle represent uplink services, and the solid arrows represent the existence of uplink beam interference. Figure 6 The lower left corner area shows the resource allocation of each UE.

[0312] The foregoing article discusses the situation where the first terminal device is in a service cell. In other embodiments, the first terminal device may be in a mobile state, which will result in cell switching. When switching from the service cell to the first neighboring cell, in order to ensure the communication quality of the first terminal device, the first neighboring cell may be instructed to keep the resource configuration information and resource allocation information of the first terminal device unchanged if the first terminal device switches to the first neighboring cell. For example, the resource configuration information and resource allocation information of the first terminal device transmitted by the service cell to the first neighboring cell can be used to implement the instruction. Thus, when the first terminal device switches to the first neighboring cell, the first neighboring cell can configure the same resource configuration information and resource allocation information for the first terminal device. Thus, it is ensured that the resource configuration information of the first terminal device remains unchanged before and after the cell switching, which is beneficial for the first terminal device to further facilitate interference coordination of the original service cell after switching to the neighboring cell. The following is still explained in different scenarios:

[0313] 3. Narrow beam scenario after switching cells

[0314] If the first terminal device switches to the first neighboring cell, identify a sixth terminal device located in the edge band of the cell and in the beam interference area of ​​the first terminal device based on the resource configuration information of the first terminal device; adjust the resource allocation information of the sixth terminal device, and / or instruct the first neighboring cell to adjust the resource allocation information of the first terminal device.

[0315] In this embodiment, after switching cells, it is possible to timely discover and adjust the mismatch between the terminal resource configurations in the current cell and the terminal in the switching cell, thereby avoiding interference between the terminals in the current cell and the terminal in the switching cell after switching.

[0316] like Figure 7 As shown, Figure 7 There are three cells, namely cell A, cell B, and cell C. Each cell is divided into a central band and an edge band. When the terminal device enters the edge band from the central band of cell A, it uploads a measurement report in step (1) to notify cell A so that cell A can sense that the terminal device 1 has entered the edge band. When the terminal device 1 triggers cell switching through the switching measurement in step (2), the terminal device 1 enters the edge band of cell B from the edge band of cell A. Then, the terminal device 1 continues to move and enters the central band of cell B from the edge band of cell B. When entering the central band of cell B, in step (3), the terminal device uploads a measurement report to inform cell B that it has entered the central band of cell B. The process of the terminal device moving from cell B to cell C is the same as the previous steps (1)-(3), which will not be repeated here.

[0317] 4. Wide beam scenario after switching cells

[0318] It can be implemented as follows: if the first terminal device switches to the first neighbor cell, when performing interference coordination, the original service cell identifies a ninth terminal device that is located in the edge band of the cell and overlaps with the resource allocation information of the first terminal device, and then adjusts the resource allocation information of the ninth terminal device, and / or instructs the first neighbor cell to adjust the resource allocation information of the first terminal device.

[0319] For another example, if the first terminal device switches to the first neighbor cell, when performing interference coordination, the original service cell identifies the tenth terminal device that is located at the edge band of the cell and has the same resource configuration information as the first terminal device, and then adjusts the resource configuration information of the tenth terminal device, and / or instructs the first neighbor cell to adjust the resource configuration information of the first terminal device.

[0320] Therefore, after the first terminal device switches cells, the original serving cell can adjust the resource situation of the internal terminal in a wide beam scenario to avoid interference.

[0321] To facilitate further understanding of the inter-cell beam interference coordination method provided in the embodiment of the present application, the following description is made by taking the inter-cell beam interference coordination of narrow beams and wide beams as examples.

[0322] Embodiment 1: Interference coordination process for narrow beams

[0323] This scenario may include three stages. The first stage is the stage where the terminal device moves from the central band of the service cell to the edge band, the second stage is the stage where the terminal device performs cell switching, and the third stage is the stage where the terminal device completes the cell switching and further performs beam interference coordination with the original service cell.

[0324] Phase 1: The terminal equipment moves from the center band of the service cell to the edge band

[0325] like Figure 8 The figure shows a process flow diagram of the first stage, which includes the following steps:

[0326] UE1 is initially located in cell A. In step 801 , UE1 measures whether it has reached the edge band of cell A. If not, step 801 is continued to be executed. If yes, step 802 is executed.

[0327] That is, based on the downlink reference signal quality measurement result, it can be determined whether the edge band threshold is reached to perform regional positioning and know whether the edge band is reached.

[0328] In step 802 , UE1 reports a reference signal quality measurement report to cell A.

[0329] In step 803, cell A performs regional positioning of UE1 based on the reference signal quality measurement report, and if it is determined that UE1 enters the cell edge band, resource configuration information of UE1 is sent to cell B affected by the interference.

[0330] During implementation, cell A can determine whether UE1 has entered the edge band in the same manner as the terminal device. In another embodiment, when the terminal device determines that it has entered the edge band, it can send the judgment result of entering the edge band to the serving cell, and the serving cell does not need to repeat the regional positioning.

[0331] In step 804, cell A checks the priority of UE1 and restricts the time-frequency domain resources of UE1 while ensuring the basic service requirements of UE1.

[0332] It should be noted that after determining that UE1 enters the edge band, the operation of cell A transmitting the resource configuration information and resource allocation information of UE1 to neighboring cell B in step 804 and the operation of limiting the time-frequency domain resources of UE1 in step 803 can be performed simultaneously. They can also be performed at different times, which is not limited in this application.

[0333] In step 805, cell B determines whether there is UE2 in the cell whose resource configuration information overlaps with that of UE1 based on the resource configuration information of UE1. If so, the resource configuration of UE2 is adjusted to stagger with the resource configuration information of UE1. If not, no adjustment is required.

[0334] In step 806, cell B performs a positioning operation on UE1 based on the resource configuration information of UE1.

[0335] In step 807 , cell B determines whether there is UE3 located in the beam interference area of ​​UE1 in the cell. If not, it returns to step 806 to continuously monitor the position of UE1 . If so, it executes step 808 .

[0336] In step 808, cell B indicates to cell A that its UE1 is in interference range.

[0337] In step 809 , cell A sends the resource allocation information of UE1 to cell B.

[0338] In step 810 , cell B performs beam interference coordination based on resource allocation information of UE1.

[0339] For example, cell B reallocates resources to UE3 to stagger it with UE1, and reallocates resources to other UEs that are about to enter the edge band and interfere with UE1, and can also allocate resources to newly accessed UEs based on the resource allocation of UE1.

[0340] Phase 2: Cell switching phase

[0341] like Fig. 9 FIG. 4 is a flow chart of interference coordination at this stage, which includes the following steps:

[0342] In step 901 , UE1 measures whether the cell switching measurement threshold is reached. If not, the process returns to step 901 . If yes, the process returns to step 902 .

[0343] In step 902, after UE1 switches to cell B, cell B configures UE1 according to the original resource configuration information and resource allocation information of UE1.

[0344] In step 903, after UE1 switches to cell B, cell A still performs SRS measurement on UE1 according to the original resource configuration information of UE1 to locate UE1.

[0345] In step 904 , cell A determines whether UE1 entering the edge band of cell B is in the beam interference area. If not, the process returns to step 903 . If yes, the process proceeds to step 905 .

[0346] In step 905, cell A notifies cell B that its UE1 is in the beam interference area. At this time, in step 906, cell B may notify cell A of the resource allocation information of UE1. Of course, when the resource allocation information of UE1 remains unchanged, cell A may not be notified.

[0347] In step 907, cell A configures the resource allocation status of UEs in the cell based on the resource allocation information of UE1 so as to stagger the resource allocation status of UE1.

[0348] Phase 3: Complete the interference coordination process of cell switching from edge band to center band

[0349] like Fig.10 As shown, it is a schematic diagram of the process in this case, which includes the following steps:

[0350] In step 1001 , UE1 performs regional positioning to determine whether it has reached the center zone of cell B. If not, step 1001 is executed; if yes, step 1002 is executed.

[0351] In step 1002, UE1 instructs cell B to enter the center band.

[0352] For example, a reference signal quality measurement report may be reported to cell B, or cell B may be informed to enter the center band in other indication ways.

[0353] In step 1003, cell B removes the time-frequency domain resource restriction on UE1 and allocates resources normally.

[0354] Example 2: Interference coordination process for wide beam

[0355] This scenario can be introduced from three stages, which is similar to the first embodiment. The first stage is the stage in which the terminal device moves from the central band of the service cell to the edge band, the second stage is the stage in which the terminal device performs cell switching, and the third stage is the stage in which the terminal device completes the cell switching and further performs beam interference coordination by the original service cell.

[0356] Phase 1: The terminal equipment moves from the center band of the service cell to the edge band

[0357] like Fig.11 The figure shows a process flow diagram of the first stage, which includes the following steps:

[0358] UE1 is initially located in cell A. In step 1101 , UE1 measures whether it has reached the edge band of cell A. If not, step 1101 is continued to be executed. If yes, step 1102 is executed.

[0359] In step 1102 , UE1 reports a reference signal quality measurement report to cell A.

[0360] In step 1103, cell A performs regional positioning of UE1 based on the reference signal quality measurement report. If it is determined that UE1 enters the cell edge band, it is identified whether there is interference to cell B based on the reference signal quality measurement report of UE1. If there is interference, the resource configuration information and resource allocation information of the first terminal device are sent to cell B.

[0361] For example, if the reference signal qualities of cell A and cell B are both higher than the interference threshold, and the interference signal quality difference is lower than the set threshold, it is determined that interference exists on cell B.

[0362] In step 1104, cell A checks the priority of UE1 and limits the time-frequency domain resources of UE1 while ensuring the basic service requirements of UE1.

[0363] It should be noted that after determining that UE1 enters the edge band, step 1103 and step 1104 may be performed simultaneously or may not be performed simultaneously.

[0364] In step 1105 , cell B reconfigures UE2 whose resource allocation information overlaps with that of UE1 , and reconfigures UE3 whose resource allocation information overlaps with that of UE1 .

[0365] Phase 2: Cell switching phase

[0366] like Fig.12 FIG. 4 is a flow chart of interference coordination at this stage, which includes the following steps:

[0367] In step 1201 , UE1 measures whether the cell switching measurement threshold is reached. If not, the process returns to step 1201 . If yes, the process returns to step 1202 .

[0368] In step 1202, after UE1 switches to cell B, cell B configures UE1 according to the original resource configuration information and resource allocation information of UE1.

[0369] In step 1203, after UE1 switches to cell B, cell B obtains a reference signal quality measurement report of UE1.

[0370] In step 1204, cell B identifies whether there is interference to cell A based on the reference signal quality measurement report, and sends resource configuration information and resource allocation information of the first terminal device to cell A if there is interference.

[0371] Of course, if the resource configuration information and resource allocation information of UE1 have not changed, the resource configuration information and resource allocation information of the first terminal device may not be sent to cell A.

[0372] In step 1205 , cell A reconfigures UE4 whose resource allocation information overlaps with that of UE1 , and reconfigures UE5 whose resource allocation information overlaps with that of UE1 .

[0373] Phase 3: Complete the interference coordination process of cell switching from edge band to center band

[0374] like Fig.13 As shown, it is a schematic diagram of the process in this case, which includes the following steps:

[0375] In step 1301 , UE1 performs regional positioning to determine whether it has reached the center zone of cell B. If not, step 1301 is executed; if yes, step 1302 is executed.

[0376] In step 1302 , UE1 instructs cell B to enter the center band.

[0377] For example, a reference signal quality measurement report may be reported to cell B, or cell B may be informed to enter the center band in other indication ways.

[0378] In step 1303, cell B removes the time-frequency domain resource restriction on UE1 and allocates resources normally.

[0379] Based on the same inventive concept, Fig.14 As shown, an embodiment of the present application provides a network side device, the terminal device includes a processor 1400, a memory 1401 and a transceiver 1402;

[0380] The processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1401 can store data used by the processor 1400 when performing operations. The transceiver 1402 is used to receive and send data under the control of the processor 1400.

[0381] The bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1400 and memory represented by memory 1401. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. Processor 1400 is responsible for managing the bus architecture and general processing, and memory 1401 may store data used by processor 1400 when performing operations.

[0382] The process disclosed in the embodiment of the present application can be applied to the processor 1400, or implemented by the processor 1400. In the implementation process, each step of the signal processing process can be completed by the hardware integrated logic circuit or software instructions in the processor 1400. The processor 1400 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware processor to be executed, or the hardware and software modules in the processor are combined and executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 1401, and the processor 1400 reads the information in the memory 1401, and completes the steps of the method flow of beam interference coordination between cells in combination with its hardware.

[0383] Specifically, the processor 1400 is used to read the program in the memory 1401 and execute:

[0384] Identify a first terminal device located in an edge zone of the cell;

[0385] For the first terminal device, terminal resource information for interference coordination is interacted with the first neighbor cell.

[0386] In some embodiments, the terminal resource information includes resource configuration information for exclusive use of the terminal device and / or resource allocation information for a service channel of the terminal device.

[0387] In some embodiments, for narrow beams, the terminal resource information that is interacted includes the resource configuration information of the first terminal device;

[0388] The processor executes the interaction of terminal resource information for beam interference coordination with the first neighbor cell, including:

[0389] Sending the resource configuration information of the first terminal device to the first neighboring cell to instruct the first neighboring cell to perform the following operations: performing a positioning operation on the first terminal device based on the resource configuration information of the first terminal device and determining whether there is a second terminal device having beam interference with the first terminal device in the first neighboring cell based on the positioning result;

[0390] The processor is further configured to execute:

[0391] In response to a first interference indication sent by the first neighboring cell for the first terminal device, sending resource allocation information of the first terminal device to the first neighboring cell; or,

[0392] In response to a second adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the resource allocation information of the first terminal device is adjusted.

[0393] In some embodiments, for narrow beam, the processor is further configured to execute:

[0394] Receiving the resource configuration information of a third terminal device in the second neighbor cell and located in an edge band of the second neighbor cell, which is sent by a second neighbor cell;

[0395] Performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device to obtain location information of the third terminal device;

[0396] Determine, based on the location information of the third terminal device, a fourth terminal device in the local cell that is located in the beam interference area of ​​the third terminal device;

[0397] Adjust the resource allocation information of the fourth terminal device and / or instruct the second neighbor cell to adjust the resource allocation information of the third terminal device.

[0398] In some embodiments, the location information includes a horizontal angle and a vertical angle of arrival, and the processor executes the step of determining, based on the location information of the third terminal device, a fourth terminal device in the cell that is located in a beam interference area of ​​the third terminal device, including:

[0399] Determine a horizontal angle difference and a vertical arrival angle difference between the third terminal device and the fourth terminal device;

[0400] If the horizontal angle difference is less than a first angle threshold and the vertical arrival angle difference is less than a second angle threshold, it is determined that the fourth terminal device is located within the beam interference area of ​​the third terminal device.

[0401] In some embodiments, before performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device, the processor is further configured to execute:

[0402] If there is a fifth terminal device in the present cell and the resource configuration information of the third terminal device is repeated, the resource configuration information of the fifth terminal device is adjusted and / or the second neighboring cell is instructed to adjust the resource configuration information of the third terminal device.

[0403] In some embodiments, the processor is further configured to execute:

[0404] If the first terminal device moves from the central band of the local cell to the edge band of the local cell, restricting the time-frequency domain resources of the first terminal device;

[0405] The time-frequency domain resources include uplink time-frequency domain resources and / or downlink time-frequency domain resources.

[0406] In some embodiments, the processor is further configured to execute:

[0407] If the first terminal device moves from the edge band of the cell to the center band of the cell, the restriction on the time-frequency domain resources of the first terminal device is lifted.

[0408] In some embodiments, the processor executes the restriction on the time-frequency domain resources of the first terminal device, including: reducing the time-frequency domain resources of the first terminal device and / or adjusting the time domain configuration of the time-frequency domain resources.

[0409] In some embodiments, the processor is further configured to execute:

[0410] If the first terminal device switches to the first neighboring cell, identifying a sixth terminal device located in an edge band of the cell and in a beam interference area of ​​the first terminal device based on the resource configuration information of the first terminal device;

[0411] Adjust the resource allocation information of the sixth terminal device, and / or instruct the first neighbor cell to adjust the resource allocation information of the first terminal device.

[0412] In some embodiments, the processor executes the step of identifying a first terminal device located in an edge band of a cell, including:

[0413] Receiving a reference signal quality measurement report sent by the first terminal device; wherein the reference signal quality measurement report is sent by the first terminal device when it is determined to be in the edge band based on the reference signal quality of the local cell and the reference signal quality of the neighboring cell;

[0414] The first terminal device is regionally positioned based on the reference signal quality measurement report.

[0415] In some embodiments, the reference signal quality measurement report includes at least one interfered neighbor cell, and the first neighbor cell is any neighbor cell among the at least one interfered neighbor cell.

[0416] In some embodiments, the processor performs the regional positioning of the first terminal device based on the reference signal quality measurement report, including:

[0417] When the reference signal quality of the first neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is less than a signal quality threshold, it is determined that the first terminal device is located in the edge band of the current cell.

[0418] In some embodiments, the processor executes the performing of regional positioning based on the reference signal quality measurement report, including:

[0419] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, it is determined that the first terminal device is located in the center band of the current cell.

[0420] In some embodiments, the processor is further configured to execute:

[0421] Instruct the first neighboring cell to keep the terminal resource information of the first terminal device unchanged if the first terminal device switches to the first neighboring cell.

[0422] In some embodiments, for a wide beam, before exchanging terminal resource information for beam interference coordination with the first neighbor cell, the processor is further configured to execute:

[0423] Determining that the reference signal qualities of the current cell and the first neighboring cell are both higher than an interference threshold, and that a reference signal quality difference is lower than a set threshold;

[0424] If the terminal resource information includes resource configuration information for a dedicated purpose of the first terminal device and resource allocation information of a service channel of the first terminal device, the terminal resource information for interacting with the first neighboring cell for beam interference coordination includes:

[0425] The resource configuration information of the first terminal device and the resource allocation information of the first terminal device are sent to the first neighbor cell to instruct the first neighbor cell to execute: reconfigure the resource configuration information of the seventh terminal device in the first neighbor cell that is identical to the resource configuration information of the first terminal device and adjust the reconfiguration resource allocation information of the eighth terminal device in the first neighbor cell that overlaps with the resource allocation information of the first terminal device.

[0426] In some embodiments, for a wide beam, the processor executing the step of interacting with the first neighbor cell for terminal resource information for beam interference coordination includes:

[0427] Based on a third adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the terminal resource information of the first terminal device is adjusted.

[0428] like Fig.15 As shown, an embodiment of the present application provides a network side device, which includes a processor 1500, a memory 1501 and a transceiver 1502;

[0429] The processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1501 can store data used by the processor 1500 when performing operations. The transceiver 1502 is used to receive and send data under the control of the processor 1500.

[0430] The bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1500 and memory represented by memory 1501. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. Processor 1500 is responsible for managing the bus architecture and general processing, and memory 1501 may store data used by processor 1500 when performing operations.

[0431] The process disclosed in the embodiment of the present application can be applied to the processor 1500, or implemented by the processor 1500. In the implementation process, each step of the signal processing process can be completed by the hardware integrated logic circuit or software instructions in the processor 1500. The processor 1500 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware processor to be executed, or a combination of hardware and software modules in the processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 1501, and the processor 1500 reads the information in the memory 1501, and completes the steps of the processing flow of beam interference coordination between cells in combination with its hardware.

[0432] Specifically, the processor 1500 is used to read the program in the memory 1501 and execute:

[0433] Measuring the reference signal quality of the serving cell and neighboring cells;

[0434] If it is determined to be in the edge band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cell, a reference signal quality measurement report is sent to the serving cell so that the serving cell and the neighboring cell exchange resource configuration information of the terminal device for inter-cell interference coordination.

[0435] In some embodiments, the processor performs the step of determining the edge band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cell, including:

[0436] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is less than a signal quality threshold, the edge band located in the serving cell is determined.

[0437] In some embodiments, after measuring the reference signal qualities of the serving cell and the neighboring cell, the processor is further configured to execute:

[0438] If it is determined based on the reference signal qualities of the serving cell and the neighboring cells that the terminal device is in the center band of the serving cell, a reference signal quality measurement report is reported to the serving cell so that the serving cell removes resource restrictions on the terminal device.

[0439] In some embodiments, the processor performs the determination based on the reference signal qualities of the serving cell and the neighboring cell that the cell is in the center band of the serving cell, including:

[0440] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, the center band located in the serving cell is determined.

[0441] like Fig.16 As shown, another structural schematic diagram of a network side device provided in an embodiment of the present application, the network side device 1600 includes:

[0442] An identification module 1601 is used to identify a first terminal device located in an edge zone of a cell;

[0443] The interference coordination module 1602 is used to interact with the first neighbor cell for the first terminal device and the terminal resource information used for interference coordination.

[0444] In some embodiments, the terminal resource information includes resource configuration information for exclusive use of the terminal device and / or resource allocation information for a service channel of the terminal device.

[0445] In some embodiments, for narrow beams, the terminal resource information that is interacted includes the resource configuration information of the first terminal device;

[0446] The interference coordination module is used to:

[0447] Sending the resource configuration information of the first terminal device to the first neighboring cell to instruct the first neighboring cell to perform the following operations: performing a positioning operation on the first terminal device based on the resource configuration information of the first terminal device and determining whether there is a second terminal device having beam interference with the first terminal device in the first neighboring cell based on the positioning result;

[0448] The interference coordination module is also used for:

[0449] In response to a first interference indication sent by the first neighboring cell for the first terminal device, sending resource allocation information of the first terminal device to the first neighboring cell; or,

[0450] In response to a second adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the resource allocation information of the first terminal device is adjusted.

[0451] In some embodiments, for narrow beams, the interference coordination module is further configured to:

[0452] Receiving the resource configuration information of a third terminal device in the second neighbor cell and located in an edge band of the second neighbor cell, which is sent by a second neighbor cell;

[0453] Performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device to obtain location information of the third terminal device;

[0454] Determine, based on the location information of the third terminal device, a fourth terminal device in the local cell that is located in the beam interference area of ​​the third terminal device;

[0455] Adjust the resource allocation information of the fourth terminal device and / or instruct the second neighbor cell to adjust the resource allocation information of the third terminal device.

[0456] In some embodiments, the location information includes a horizontal angle and a vertical angle of arrival, and the interference coordination module determines a fourth terminal device in the cell located in a beam interference area of ​​the third terminal device based on the location information of the third terminal device, including:

[0457] Determine a horizontal angle difference and a vertical arrival angle difference between the third terminal device and the fourth terminal device;

[0458] If the horizontal angle difference is less than a first angle threshold and the vertical arrival angle difference is less than a second angle threshold, it is determined that the fourth terminal device is located within the beam interference area of ​​the third terminal device.

[0459] In some embodiments, before performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device, the interference coordination module is further used to:

[0460] If there is a fifth terminal device in the present cell and the resource configuration information of the third terminal device is repeated, the resource configuration information of the fifth terminal device is adjusted and / or the second neighboring cell is instructed to adjust the resource configuration information of the third terminal device.

[0461] In some embodiments, the network side device further includes:

[0462] A resource adjustment module, configured to restrict the time-frequency domain resources of the first terminal device if the first terminal device moves from the central band of the cell to the edge band of the cell;

[0463] The time-frequency domain resources include uplink time-frequency domain resources and / or downlink time-frequency domain resources.

[0464] In some embodiments, the resource adjustment module is further configured to:

[0465] If the first terminal device moves from the edge band of the cell to the center band of the cell, the restriction on the time-frequency domain resources of the first terminal device is lifted.

[0466] In some embodiments, the restriction on the time-frequency domain resources of the first terminal device includes: reducing the time-frequency domain resources of the first terminal device and / or adjusting the time domain configuration of the time-frequency domain resources.

[0467] In some embodiments, the interference coordination module is further configured to:

[0468] If the first terminal device switches to the first neighboring cell, identifying a sixth terminal device located in an edge band of the cell and in a beam interference area of ​​the first terminal device based on the resource configuration information of the first terminal device;

[0469] Adjust the resource allocation information of the sixth terminal device, and / or instruct the first neighbor cell to adjust the resource allocation information of the first terminal device.

[0470] In some embodiments, the identification module is used to:

[0471] Receiving a reference signal quality measurement report sent by the first terminal device; wherein the reference signal quality measurement report is sent by the first terminal device when it is determined to be in the edge band based on the reference signal quality of the local cell and the reference signal quality of the neighboring cell;

[0472] The first terminal device is regionally positioned based on the reference signal quality measurement report.

[0473] In some embodiments, the reference signal quality measurement report includes at least one interfered neighbor cell, and the first neighbor cell is any neighbor cell among the at least one interfered neighbor cell.

[0474] In some embodiments, the identification module performs the regional positioning of the first terminal device based on the reference signal quality measurement report, including:

[0475] When the reference signal quality of the first neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is less than a signal quality threshold, it is determined that the first terminal device is located in the edge band of the current cell.

[0476] In some embodiments, the identification module performs the regional positioning based on the reference signal quality measurement report, including:

[0477] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, it is determined that the first terminal device is located in the center band of the current cell.

[0478] In some embodiments, the interference coordination module is further configured to:

[0479] Instruct the first neighboring cell to keep the terminal resource information of the first terminal device unchanged if the first terminal device switches to the first neighboring cell.

[0480] In some embodiments, for a wide beam, before exchanging terminal resource information for beam interference coordination with the first neighbor cell, the interference coordination module is further configured to:

[0481] Determining that the reference signal qualities of the current cell and the first neighboring cell are both higher than an interference threshold, and that a reference signal quality difference is lower than a set threshold;

[0482] If the terminal resource information includes resource configuration information for a dedicated purpose of the first terminal device and resource allocation information of a service channel of the first terminal device, the terminal resource information for interacting with the first neighboring cell for beam interference coordination includes:

[0483] The resource configuration information of the first terminal device and the resource allocation information of the first terminal device are sent to the first neighbor cell to instruct the first neighbor cell to execute: reconfigure the resource configuration information of the seventh terminal device in the first neighbor cell that is identical to the resource configuration information of the first terminal device and adjust the reconfiguration resource allocation information of the eighth terminal device in the first neighbor cell that overlaps with the resource allocation information of the first terminal device.

[0484] In some embodiments, for a wide beam, the interference coordination module executing the interaction with the first neighbor cell for terminal resource information for beam interference coordination includes:

[0485] Based on a third adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the terminal resource information of the first terminal device is adjusted.

[0486] like Fig.17 As shown, another structural schematic diagram of a terminal device provided in an embodiment of the present application, the terminal device 1700 includes:

[0487] The measurement module 1701 is used to measure the reference signal quality of the serving cell and the neighboring cell;

[0488] The area determination module 1702 is used to send a reference signal quality measurement report to the serving cell if it is determined to be in the edge band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cell, so that the serving cell and the neighboring cell exchange resource configuration information of the terminal device to perform inter-cell interference coordination.

[0489] In some embodiments, the area determination module performs the determination based on the reference signal qualities of the serving cell and the neighboring cell to be in the edge zone of the serving cell, including:

[0490] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is less than a signal quality threshold, the edge band located in the serving cell is determined.

[0491] In some embodiments, after measuring the reference signal qualities of the serving cell and the neighboring cell, the area determination module is further configured to:

[0492] If it is determined based on the reference signal qualities of the serving cell and the neighboring cells that the terminal device is in the center band of the serving cell, a reference signal quality measurement report is reported to the serving cell so that the serving cell removes resource restrictions on the terminal device.

[0493] In some embodiments, the area determination module performs the determination based on the reference signal qualities of the serving cell and the neighboring cell to be in the center zone of the serving cell, including:

[0494] When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, the center band located in the serving cell is determined.

[0495] A computer storable medium having a computer program stored thereon, which when executed by a processor implements the above Figure 3 , 8 -13 The steps of the method described.

[0496] The present application is described above with reference to the block diagrams and / or flow charts showing the methods, devices (systems) and / or computer program products according to the embodiments of the present application. It should be understood that a block of the block diagram and / or flow chart diagram and a combination of blocks of the block diagram and / or flow chart diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer and / or other programmable data processing device to produce a machine, so that the instructions executed by the computer processor and / or other programmable data processing device create a method for implementing the functions / actions specified in the block diagram and / or flow chart block.

[0497] Accordingly, the present application may also be implemented with hardware and / or software (including firmware, resident software, microcode, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium, which has a computer-usable or computer-readable program code implemented in the medium, for use by an instruction execution system or in conjunction with an instruction execution system. In the context of the present application, a computer-usable or computer-readable medium may be any medium that may contain, store, communicate, transmit, or convey a program for use by an instruction execution system, device, or apparatus, or in conjunction with an instruction execution system, device, or apparatus.

[0498] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these 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 also intended to include these modifications and variations.

Claims

1. A method for inter-cell interference coordination, characterized in that: The method comprises: Identify a first terminal device located in an edge zone of the cell; For the first terminal device, interacting with the first neighboring cell for terminal resource information used for interference coordination, the terminal resource information including resource configuration information for exclusive use of the terminal device and resource allocation information for a service channel of the terminal device; Wherein, for a narrow beam, the interacted terminal resource information includes the resource configuration information of the first terminal device; The interacting with the first neighbor cell for terminal resource information for beam interference coordination includes: Sending the resource configuration information of the first terminal device to the first neighboring cell to instruct the first neighboring cell to perform the following operations: performing a positioning operation on the first terminal device based on the resource configuration information of the first terminal device and determining whether there is a second terminal device having beam interference with the first terminal device in the first neighboring cell based on the positioning result; The method further comprises: In response to a first interference indication sent by the first neighboring cell for the first terminal device, sending resource allocation information of the first terminal device to the first neighboring cell; or, In response to a second adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the resource allocation information of the first terminal device is adjusted.

2. The method according to claim 1, characterized in that For narrow beams, the method further includes: Receiving the resource configuration information of a third terminal device in the second neighbor cell and located in an edge band of the second neighbor cell, which is sent by a second neighbor cell; Performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device to obtain location information of the third terminal device; Determine, based on the location information of the third terminal device, a fourth terminal device in the local cell that is located in the beam interference area of ​​the third terminal device; Adjust the resource allocation information of the fourth terminal device and / or instruct the second neighbor cell to adjust the resource allocation information of the third terminal device.

3. The method according to claim 2, characterized in that The position information includes a horizontal angle and a vertical angle of arrival, and determining the fourth terminal device in the cell that is located in the beam interference area of ​​the third terminal device based on the position information of the third terminal device includes: Determine a horizontal angle difference and a vertical arrival angle difference between the third terminal device and the fourth terminal device; If the horizontal angle difference is less than a first angle threshold and the vertical arrival angle difference is less than a second angle threshold, it is determined that the fourth terminal device is located within the beam interference area of ​​the third terminal device.

4. The method according to claim 2, characterized in that: Before performing a positioning operation on the third terminal device based on the resource configuration information of the third terminal device, the method further includes: If there is a fifth terminal device in the present cell and the resource configuration information of the third terminal device is repeated, the resource configuration information of the fifth terminal device is adjusted and / or the second neighboring cell is instructed to adjust the resource configuration information of the third terminal device.

5. The method according to claim 1, characterized in that The method further comprises: If the first terminal device moves from the central band of the local cell to the edge band of the local cell, restricting the time-frequency domain resources of the first terminal device; The time-frequency domain resources include uplink time-frequency domain resources and / or downlink time-frequency domain resources.

6. The method according to claim 1, characterized in that The method further comprises: If the first terminal device moves from the edge band of the cell to the center band of the cell, the restriction on the time-frequency domain resources of the first terminal device is lifted.

7. The method according to claim 5 or 6, characterized in that: The restriction on the time-frequency domain resources of the first terminal device includes: reducing the time-frequency domain resources of the first terminal device and / or adjusting the time domain configuration of the time-frequency domain resources.

8. The method according to claim 1, characterized in that The method further comprises: If the first terminal device switches to the first neighboring cell, identifying a sixth terminal device located in an edge band of the cell and in a beam interference area of ​​the first terminal device based on the resource configuration information of the first terminal device; Adjust the resource allocation information of the sixth terminal device, and / or instruct the first neighbor cell to adjust the resource allocation information of the first terminal device.

9. The method according to any one of claims 1 to 6 and 8, characterized in that: The identifying the first terminal device in the edge band of the cell includes: Receiving a reference signal quality measurement report sent by the first terminal device; wherein the reference signal quality measurement report is sent by the first terminal device when it is determined to be in the edge band based on the reference signal quality of the local cell and the reference signal quality of the neighboring cell; The first terminal device is regionally positioned based on the reference signal quality measurement report.

10. The method according to claim 9, characterized in that The reference signal quality measurement report includes at least one interfered neighbor cell, and the first neighbor cell is any neighbor cell among the at least one interfered neighbor cell.

11. The method according to claim 9, characterized in that The performing regional positioning of the first terminal device based on the reference signal quality measurement report includes: When the reference signal quality of the first neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is less than a signal quality threshold, it is determined that the first terminal device is located in the edge band of the current cell.

12. The method according to claim 9, characterized in that The performing area positioning based on the reference signal quality measurement report includes: When the reference signal quality of the neighboring cell is lower than the reference signal quality of the current cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, it is determined that the first terminal device is located in the center band of the current cell.

13. The method according to any one of claims 1 to 6 and 8, characterized in that: The method further comprises: Instruct the first neighboring cell to keep the terminal resource information of the first terminal device unchanged if the first terminal device switches to the first neighboring cell.

14. The method according to any one of claims 1 to 6 and 8, characterized in that: For wide beam, Before the interacting with the first neighbor cell about the terminal resource information for beam interference coordination, the method further includes: Determining that the reference signal qualities of the current cell and the first neighboring cell are both higher than an interference threshold, and that a reference signal quality difference is lower than a set threshold; If the terminal resource information includes resource configuration information for a dedicated purpose of the first terminal device and resource allocation information of a service channel of the first terminal device, the terminal resource information for interacting with the first neighboring cell for beam interference coordination includes: The resource configuration information of the first terminal device and the resource allocation information of the first terminal device are sent to the first neighbor cell to instruct the first neighbor cell to execute: reconfigure the resource configuration information of the seventh terminal device in the first neighbor cell that is identical to the resource configuration information of the first terminal device and adjust the reconfiguration resource allocation information of the eighth terminal device in the first neighbor cell that overlaps with the resource allocation information of the first terminal device.

15. The method according to any one of claims 1 to 6 and 8, characterized in that: For the wide beam, the terminal resource information interacting with the first neighbor cell for beam interference coordination includes: Based on a third adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the terminal resource information of the first terminal device is adjusted.

16. A method for inter-cell interference coordination, characterized in that: The method comprises: The terminal equipment measures the reference signal quality of the serving cell and the neighboring cell; If it is determined based on the reference signal qualities of the serving cell and the neighboring cell that the terminal device is in the edge band of the serving cell, a reference signal quality measurement report is sent to the serving cell, so that the serving cell and the neighboring cell exchange resource configuration information of the terminal device to perform inter-cell interference coordination, wherein for a narrow beam, the resource configuration information of the terminal device exchanged with the neighboring cell includes the resource configuration information of the terminal device; The serving cell and the neighboring cell exchange resource configuration information of the terminal device, including: The resource configuration information of the terminal device is sent to the neighboring cell to instruct the neighboring cell to perform the following operations: positioning the terminal device based on the resource configuration information of the terminal device and determining whether there is a second terminal device in the neighboring cell that has beam interference with the terminal device based on the positioning result; the resource allocation information of the terminal device is adjusted by the serving cell in response to a second adjustment indication of the terminal resource information of the terminal device sent by the neighboring cell.

17. The method according to claim 16, characterized in that The determining the edge band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cell includes: When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is less than a signal quality threshold, the edge band located in the serving cell is determined.

18. The method according to claim 16 or 17, characterized in that After measuring the reference signal qualities of the serving cell and the neighboring cell, the method further includes: If it is determined based on the reference signal qualities of the serving cell and the neighboring cells that the terminal device is in the center band of the serving cell, a reference signal quality measurement report is reported to the serving cell so that the serving cell removes resource restrictions on the terminal device.

19. The method according to claim 18, characterized in that The determining the center band of the serving cell based on the reference signal qualities of the serving cell and the neighboring cell comprises: When the reference signal quality of the neighboring cell is lower than the reference signal quality of the serving cell, and the reference signal quality difference is greater than or equal to a signal quality threshold, the center band located in the serving cell is determined.

20. A network side device, characterized in that: The network side device includes: a processor, a memory and a transceiver; Memory for storing computer programs; a transceiver, for transmitting and receiving data under the control of the processor; A processor, configured to read the computer program in the memory and execute the method according to any one of claims 1 to 15.

21. A terminal device, characterized in that: The terminal device comprises: a processor, a memory and a transceiver; Memory for storing computer programs; a transceiver, for transmitting and receiving data under the control of the processor; A processor, configured to read the computer program in the memory and execute the method according to any one of claims 16 to 19.

22. A network side device, characterized in that: The network side device includes: An identification module, used to identify a first terminal device located in an edge zone of a cell; an interference coordination module, configured to interact with a first neighboring cell, for the first terminal device, with respect to the first terminal device, with respect to terminal resource information for interference coordination, wherein the terminal resource information includes resource configuration information for exclusive use of the terminal device and resource allocation information for a service channel of the terminal device; Wherein, for a narrow beam, the interacted terminal resource information includes the resource configuration information of the first terminal device; The interacting with the first neighbor cell for terminal resource information for beam interference coordination includes: Sending the resource configuration information of the first terminal device to the first neighboring cell to instruct the first neighboring cell to perform the following operations: performing a positioning operation on the first terminal device based on the resource configuration information of the first terminal device and determining whether there is a second terminal device having beam interference with the first terminal device in the first neighboring cell based on the positioning result; The interference coordination module is also used for: In response to a first interference indication sent by the first neighboring cell for the first terminal device, sending resource allocation information of the first terminal device to the first neighboring cell; or, In response to a second adjustment indication for the terminal resource information of the first terminal device sent by the first neighboring cell, the resource allocation information of the first terminal device is adjusted.

23. A terminal device, characterized in that: The terminal device comprises: A measurement module, used to measure the reference signal quality of the serving cell and the neighboring cell; an area determination module, configured to send a reference signal quality measurement report to the serving cell if it is determined based on the reference signal qualities of the serving cell and the neighboring cell that the terminal device is in an edge band of the serving cell, so that the serving cell and the neighboring cell exchange resource configuration information of the terminal device to perform inter-cell interference coordination, wherein for a narrow beam, the resource configuration information of the terminal device exchanged with the neighboring cell includes the resource configuration information of the terminal device; The serving cell and the neighboring cell exchange resource configuration information of the terminal device, including: The resource configuration information of the terminal device is sent to the neighboring cell to instruct the neighboring cell to perform the following operations: positioning the terminal device based on the resource configuration information of the terminal device and determining whether there is a second terminal device in the neighboring cell that has beam interference with the terminal device based on the positioning result; the resource allocation information of the terminal device is adjusted by the serving cell in response to a second adjustment indication of the terminal resource information of the terminal device sent by the neighboring cell.

24. A computer storable medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 19 is implemented.

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