Remote interference management method, device, apparatus, system, and storage medium

Abstract

The present disclosure relates to a remote interference management method, a device, an apparatus, a system, and a storage medium. The method comprises: sending report information to a satellite gateway, wherein the report information is used for indicating that a first network device is experiencing remote interference (RI). In the method of the present disclosure, in a satellite communication system, the first network device can monitor whether the first network device is experiencing RI, and report to the satellite gateway in time when the first network device is experiencing RI. The satellite gateway issues second configuration information to a second network device, so that the second network device can monitor RS on the basis of the second configuration information, so as to adaptively determine or eliminate interference to improve the system communication quality.

Description

Remote interference management methods, equipment, devices, systems and storage media Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method, apparatus, system and storage medium for remote interference management (RIM). Background Technology

[0002] In satellite communication systems, Frequency Division Duplex (FDD) mode is generally used. With the increasing demand for Direct to Satellite Service (D2SS), the application of Time Division Duplex (TDD) mode is expected to alleviate the frequency resource shortage problem in satellite communication systems and promote satellite-to-ground integration. However, large-scale application of TDD mode in satellite communication systems may lead to remote interference (RI) problems.

[0003] Summary of the Invention

[0004] This disclosure provides a method, device, apparatus, system, and storage medium for remote interference management (RIM).

[0005] In a first aspect, embodiments of this disclosure provide a RIM method, executed by a first network device, the method comprising:

[0006] A report is sent to the satellite gateway, the report indicating that the first network device is subject to remote interference (RI).

[0007] Secondly, embodiments of this disclosure provide a RIM method executed by a satellite gateway, the method comprising:

[0008] Receive a report message sent by a first network device, the report message being used to indicate that the first network device has been subjected to an RI;

[0009] Send second configuration information to at least one second network device. The second configuration information is used to configure a first RS and a second RS, and to instruct the second network device to start listening to the first RS. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0010] Thirdly, embodiments of this disclosure provide a RIM method executed by a second network device, the method comprising:

[0011] The system receives second configuration information sent by a satellite gateway. The second configuration information is used to configure a first RS and a second RS, and to instruct the second network device to start listening to the first RS. The satellite gateway sends the second configuration information after receiving a report, and the report is used to indicate that the first network device has received an RI. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0012] Listen to the first RS sent by the first network device according to the second configuration information.

[0013] Fourthly, embodiments of this disclosure provide a RIM method, including:

[0014] The first network device sends a report to the satellite gateway, the report indicating that the first network device has been subjected to an RI.

[0015] After receiving the report information, the satellite gateway sends second configuration information to at least one second network device. The second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start listening to the first RS. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0016] The second network device listens to the first RS sent by the first network device according to the second configuration information.

[0017] Fifthly, embodiments of this disclosure provide a network device, including:

[0018] The transceiver module is used to send report information to the satellite gateway, the report information being used to indicate that the first network device is subject to the RI of the second network device.

[0019] Sixthly, embodiments of this disclosure provide a satellite gateway, including:

[0020] The transceiver module is used to receive report information sent by the first network device, the report information being used to indicate that the first network device has been subjected to RI;

[0021] The transceiver module is further configured to send second configuration information to at least one second network device. The second configuration information is used to configure a first RS and a second RS, and to instruct the second network device to start listening to the first RS. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0022] In a seventh aspect, embodiments of this disclosure provide a network device, including:

[0023] The transceiver module is used to receive second configuration information sent by the satellite gateway. The second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start listening to the first RS. The satellite gateway sends the second configuration information after receiving the report information, and the report information is used to indicate that the first network device has received an RI. The first RS is used to instruct the second network device to generate an RI for the first network device. The second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0024] The transceiver module is also used to listen to the first RS sent by the first network device according to the second configuration information.

[0025] Eighthly, embodiments of this disclosure provide a communication system, including: a first network device, a satellite gateway, and a second network device, wherein...

[0026] The first network device is configured to implement the method described in the first aspect;

[0027] The satellite gateway is configured to implement the method described in the second aspect;

[0028] The second network device is configured to implement the method described in the third aspect.

[0029] Ninthly, embodiments of this disclosure provide a communication device, including:

[0030] One or more processors;

[0031] The communication device is used to implement the method described in the first aspect, the second aspect, or the third aspect.

[0032] In a tenth aspect, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0033] When the instructions are executed on a communication device, the communication device causes the communication device to perform the method described in the first aspect, the second aspect, or the third aspect.

[0034] In this embodiment of the disclosure, in the satellite communication system, the first network device can monitor whether it is subjected to RI (Remote Interference), and report to the satellite gateway in a timely manner when it is subjected to remote interference RI; the satellite gateway sends second configuration information to the second network device, so that the second network device can listen to RS (Remote Interference) based on the second configuration information, so as to adaptively determine or eliminate interference and improve the system communication quality. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0036] Figure 1a is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0037] Figures 1b to 1c are schematic diagrams of remote interference generated according to embodiments of the present disclosure;

[0038] Figure 1d is a schematic diagram of the Iridium satellite frame structure provided according to an embodiment of the present disclosure;

[0039] Figures 1e to 1f are schematic diagrams of a RIM provided according to embodiments of the present disclosure;

[0040] Figure 2a is an exemplary interactive schematic diagram of a method provided according to an embodiment of the present disclosure;

[0041] Figure 2b is a schematic diagram of interference noise tilt according to an embodiment of the present disclosure;

[0042] Figure 2c is a schematic diagram of interference to earth stations at different distances according to embodiments of the present disclosure;

[0043] Figures 3a and 3b are exemplary flowcharts of a method provided according to embodiments of the present disclosure;

[0044] Figures 4a and 4b are exemplary flowcharts of a method provided according to embodiments of the present disclosure;

[0045] Figures 5a and 5b are exemplary flowcharts of a method provided according to embodiments of the present disclosure;

[0046] Figure 6 is an exemplary interactive diagram of the method provided in an embodiment of this disclosure;

[0047] Figure 7a is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure;

[0048] Figure 7b is a schematic diagram of a satellite gateway according to an embodiment of the present disclosure;

[0049] Figure 7c is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure;

[0050] Figure 8a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0051] Figure 8b is a schematic diagram of a communication device according to an embodiment of the present disclosure. Detailed Implementation

[0052] This disclosure provides a method, device, apparatus, system, and storage medium for remote interference management (RIM).

[0053] In a first aspect, embodiments of this disclosure provide a RIM method, executed by a first network device, the method comprising:

[0054] A report is sent to the satellite gateway, the report indicating that the first network device is subject to remote interference (RI).

[0055] In the above embodiments, in the satellite communication system, the first network device can monitor whether it is affected by RI (Reference Signal) and report to the satellite gateway in a timely manner when it is affected by remote interference RI; the satellite gateway sends second configuration information to the second network device, so that the second network device can listen to the reference signal (RS) based on the second configuration information, which facilitates adaptive determination or elimination of interference, thereby improving the system communication quality.

[0056] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0057] The system receives first configuration information sent by a satellite gateway. The first configuration information is used to configure a first reference signal RS and a second RS, and is used to instruct a first network device to start sending the first RS. The first RS is used to instruct a second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0058] Based on the first configuration information, send the first RS to the second network device;

[0059] Based on the first configuration information, listen for the second RS sent by the second network device.

[0060] In the above embodiments, the first network device receives first configuration information to obtain information about relevant reference signals, so as to send the first RS at an appropriate time and listen to the second RS, thereby interacting with the second network device based on the reference signals and efficiently determining the network device that is carrying out interference.

[0061] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0062] Listen for the first configuration information within the first time window T1.

[0063] In the above embodiments, the first network device may wait for the first configuration information within a preset time window. If the first configuration information is not received within the time window T1, the first network device may promptly implement other measures to improve communication efficiency.

[0064] In conjunction with the embodiments of the first aspect, in some embodiments, the first network device is able to receive the second RS while maintaining the transmission of the first RS.

[0065] In the above embodiment, if the first network device can receive the second RS, it means that the RI still exists. Therefore, the first RS needs to continue to be sent to alert the second network device that may cause interference, so that the second network device can take timely avoidance measures.

[0066] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0067] If the first network device does not receive the second RS, it will stop sending the first RS once it determines that the RI meets the conditions.

[0068] In the above embodiments, if the first network device does not receive the second RS and the RI has returned to a normal level, it indicates that the RI may have been circumvented. The first network device can stop sending the first RS and confirm that the RI has been eliminated, and can carry out normal communication.

[0069] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0070] When the first network device fails to receive the second RS and determines that the RI does not meet the requirements, it resends the report information to the satellite gateway.

[0071] In the above embodiment, if the first network device does not receive the configured second RS, but the RI has not returned to the normal level, it indicates that there may be other remote interference devices. Therefore, by resending the report information, the satellite gateway can be reconfigured so that the RI can be eliminated.

[0072] In conjunction with embodiments of the first aspect, in some embodiments, the first network device determines the presence of RI when it detects interference noise that conforms to a set characteristic.

[0073] In the above embodiments, the first network device can determine whether an RI exists based on the detected interference noise, so that it can report to the satellite gateway in a timely manner when an RI is detected, so as to facilitate RIM.

[0074] In conjunction with the embodiments of the first aspect, in some embodiments, the transmission time-domain position of the first RS satisfies: within an uplink time-domain unit, and including several symbols preceding the boundary between the uplink and downlink time-domain units; and / or,

[0075] The transmission time domain position of the second RS satisfies the following condition: it is in the uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units.

[0076] In the above embodiments, based on the time domain location of the first RS or the second RS, the first network device can send the first RS at an appropriate time or listen to the second RS at an appropriate location.

[0077] Secondly, embodiments of this disclosure provide a RIM method executed by a satellite gateway, the method comprising:

[0078] Receive report information sent by the first network device, the report information being used to indicate that the first network device has been subjected to RI;

[0079] Send second configuration information to at least one second network device. The second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start listening to the first RS. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0080] In the above embodiment, the satellite gateway learns from the received report information that the first network device is affected by RI, and configures reference signals for at least one second network device that may be interfering by sending second configuration information. Thus, the second network device can listen to RS based on the second configuration information, so as to adaptively determine or eliminate interference and improve the system communication quality.

[0081] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0082] Send first configuration information to the first network device. The first configuration information is used to configure the first reference signal RS and the second RS, and to instruct the first network device to start sending the first RS.

[0083] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0084] The first network device retransmits the report information when it does not receive the second RS and the RI still does not meet the conditions.

[0085] In conjunction with embodiments of the second aspect, in some embodiments, at least one second network device is determined by the satellite gateway based on the location of the first network device.

[0086] In conjunction with the embodiments of the second aspect, in some embodiments, the transmission time-domain position of the first RS satisfies the following: within an uplink time-domain unit, and including several symbols preceding the boundary between the uplink and downlink time-domain units; and / or,

[0087] The transmission time domain position of the second RS satisfies the following condition: it is in the uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units.

[0088] Thirdly, embodiments of this disclosure provide a RIM method executed by a second network device, the method comprising:

[0089] The satellite gateway receives second configuration information sent by the satellite gateway. The second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start listening to the first RS. The satellite gateway sends the second configuration information after receiving the report information, and the report information is used to instruct the first network device to receive the RI of the second network device.

[0090] Listen to the first RS sent by the first network device according to the second configuration information.

[0091] In the above embodiments, the second network device learns the reference signal configured by the satellite gateway based on the second configuration information, and can listen to the first RS in a timely manner according to the second configuration information so as to adaptively determine or eliminate interference and improve the system communication quality.

[0092] In conjunction with the embodiments of the third aspect, in some embodiments, the second network device listens to the first RS within a second time window T2.

[0093] In conjunction with the embodiments of the third aspect, in some embodiments, if the first RS is not received within the second time window T2, listening to the first RS is stopped.

[0094] In conjunction with the embodiments of the third aspect, in some embodiments, the method further includes:

[0095] The first RS is received within the second time window T2, and RI evasion behavior is executed.

[0096] In conjunction with the embodiments of the third aspect, in some embodiments, the method further includes:

[0097] According to the second configuration information, a second RS is sent to the first network device. The second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0098] In conjunction with embodiments of the third aspect, in some embodiments, the RI evasion behavior includes at least one or more of the following:

[0099] Reduce transmission power;

[0100] Increase the protection interval between the uplink transmission time domain unit and the downlink transmission time domain unit;

[0101] Increase the elevation angle of the transmitted beam.

[0102] In conjunction with the embodiments of the third aspect, in some embodiments, when the second network device begins listening to the first RS, the second network device assumes that the first network device has received the first configuration information sent by the satellite gateway; or,

[0103] When the second network device starts listening to the first RS, the first network device receives the first configuration information, in which the second network device does not generate an RI for the first network device; or...

[0104] When the second network device starts listening to the first RS, the first network device has not received the first configuration information or has not started sending the first RS;

[0105] The first configuration information is used to configure the first reference signal RS and the second RS, and to instruct the first network device to start transmitting the first RS.

[0106] In conjunction with embodiments of the third aspect, in some embodiments, the transmission time-domain position of the first RS satisfies the following: within an uplink time-domain unit, and including several symbols preceding the boundary between the uplink and downlink time-domain units; and / or,

[0107] The transmission time domain position of the second RS satisfies the following condition: it is in the uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units.

[0108] Fourthly, embodiments of this disclosure provide a RIM method, including:

[0109] The first network device sends a report to the satellite gateway, the report indicating that the first network device has been subjected to an RI.

[0110] After receiving the report information, the satellite gateway sends second configuration information to at least one second network device. The second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start listening to the first RS. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0111] The second network device listens to the first RS sent by the first network device according to the second configuration information.

[0112] Fifthly, embodiments of this disclosure provide a network device, including:

[0113] The transceiver module is used to send report information to the satellite gateway, the report information being used to indicate that the first network device has been subjected to RI.

[0114] Sixthly, embodiments of this disclosure provide a satellite gateway, including:

[0115] The transceiver module is used to receive report information sent by the first network device, the report information being used to indicate that the first network device has been subjected to RI;

[0116] The transceiver module is further configured to send second configuration information to at least one second network device. The second configuration information is used to configure a first RS and a second RS, and to instruct the second network device to start listening to the first RS. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0117] In a seventh aspect, embodiments of this disclosure provide a network device, including:

[0118] The transceiver module is used to receive second configuration information sent by the satellite gateway. The second configuration information is used to configure a first RS and a second RS, and to instruct the second network device to start listening to the first RS. The satellite gateway sends the second configuration information after receiving a report, and the report is used to indicate that the first network device has received an RI. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0119] The transceiver module is also used to listen to the first RS sent by the first network device according to the second configuration information.

[0120] Eighthly, embodiments of this disclosure provide a communication system, including: a first network device, a satellite gateway, and a second network device, wherein...

[0121] The first network device is configured to implement the method described in the first aspect;

[0122] The satellite gateway is configured to implement the method described in the second aspect;

[0123] The second network device is configured to implement the method described in the third aspect.

[0124] Ninthly, embodiments of this disclosure provide a communication device, including:

[0125] One or more processors;

[0126] The communication device is used to implement the method described in the first aspect, the second aspect, or the third aspect.

[0127] In a tenth aspect, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0128] When the instructions are executed on a communication device, the communication device causes the communication device to perform the method described in the first aspect, the second aspect, or the third aspect.

[0129] In a tenth aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first and second aspects.

[0130] In one aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in alternative implementations of the first and second aspects.

[0131] In a twelfth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and second aspects above.

[0132] It is understood that the aforementioned network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0133] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0134] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0135] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0136] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0137] In the embodiments disclosed herein, "multiple" refers to two or more.

[0138] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0139] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0140] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0141] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0142] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0143] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0144] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0145] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0146] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0147] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0148] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0149] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0150] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0151] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0152] Figure 1a is a schematic diagram of the architecture of a communication system 100 according to an embodiment of the present disclosure.

[0153] As shown in Figure 1a, the communication system 100 can be a non-terrestrial network (NTN) system, such as a satellite communication system. The communication system 100 may include a first network device 101, a satellite gateway 102, and a second network device 103.

[0154] In some embodiments, the first network device 101 and the second network device 103 are earth stations or ground stations. The first network device 101 may be a device that is subjected to interference (RI) during communication, and may be referred to as a disturbed network device, a disturbed base station, or a disturbed earth station (Victim). The second network device 103 may be a device that injects interference during communication, and may be referred to as a disturbing network device, a disturbing base station, or a disturbing earth station (Aggressor). The earth station may be an access network device used to connect to the core network device.

[0155] Optionally, the access network device may be a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0156] Optionally, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0157] Optionally, the access network equipment can be composed of a central unit (CU) and a distributed unit (DU). The CU can also be called a control unit. By adopting the CU-DU structure, the protocol layer of the access network equipment can be separated. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU, which is centrally controlled by the CU. However, this is not the only option.

[0158] Optionally, a core network device can be a single device comprising one or more network elements, or it can be multiple devices or a group of devices, each comprising all or part of one or more network elements. Network elements can be virtual or physical. The core network may include, for example, at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0159] In some embodiments, the satellite gateway 102 may also be referred to as a satellite, which may be a satellite in different orbits, at different altitudes and with different coverage areas.

[0160] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions provided in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this disclosure are also applicable to similar technical problems.

[0161] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1a, or to a part thereof, but are not limited thereto.

[0162] The entities shown in Figure 1a are illustrative. The communication system may include all or some of the entities in Figure 1a, or it may include other entities besides those in Figure 1a. The number and form of each entity are arbitrary. The connection relationship between the entities is illustrative. The entities may not be connected to each other or may be connected in any way. The connection may be direct or indirect, wired or wireless.

[0163] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0164] In this disclosure, 3GPP standardizes FDD mode satellite communication systems, while TDD mode satellite communication systems require further research. TDD mode satellite communication may include the following characteristics: in antenna structure, the transmitter and receiver share a single antenna, simplifying satellite or terminal structure; in frequency allocation, it supports compatibility between satellite and terrestrial mobile communication, allowing reuse of the terrestrial industry chain; in transmission latency, it is greater than FDD mode, requiring guard intervals between uplink and downlink, potentially leading to resource waste; in scheduling timing, uplink and downlink time slots are discontinuous, requiring strict scheduling timing; and in interference management, there is interference between uplink and downlink. Based on these characteristics, large-scale application of TDD mode in satellite communication systems may lead to long-range interference problems.

[0165] In this embodiment of the disclosure, RI is interference caused by air tropospheric waveguides.

[0166] Referring to Figure 1b, in terrestrial communication systems, the downlink transmission power of TDD mode base stations is typically much higher than the uplink transmission power. Under certain atmospheric conditions, air stratification can create tropospheric waveguides, allowing downlink signals to propagate for hundreds of kilometers with relatively low propagation loss, interfering with the uplink of distant base stations (such as the base station at the bottom of the figure). RI (Range Intrusion) can last from several minutes to several hours, with a propagation distance exceeding 300 km, causing long-term, large-area interference to TDD mobile communication systems. In the figure, D represents the downlink symbol, U represents the uplink symbol, and GP represents the guard interval.

[0167] Referring to Figure 1c, in a TDD-mode satellite communication system, the uplink signal from an earth station may cause an Incoming Link (RI) to the downlink signal from other earth stations. For example, when earth station A is transmitting uplink signals to a satellite, the uplink signal from earth station A enters the tropospheric waveguide and is transmitted to earth station V, hundreds of kilometers away. Earth station V is transmitting downlink signals to the satellite. At this time, it not only receives the downlink signal from the satellite but also the uplink signal from the distant earth station A, causing an RI to the satellite's downlink.

[0168] Referring to the Iridium satellite frame structure shown in Figure 1d as an example, assuming the satellite is an Iridium satellite, V represents the disturbed earth station, and A1~A N This represents N different interfering earth stations. Due to the transmission delay caused by the tropospheric waveguide, each interfering earth station will generate a transmission interference (RI) to the affected earth station. Iridium is a commercial satellite system that uses the TDD mode.

[0169] In some embodiments, interference resonance (RI) in a TDD system may be due to various reasons. For example, in terms of frequency, atmospheric ducting effects typically occur in the 0.3-30 GHz frequency range, while the signal frequency of the earth station largely overlaps with this range. In terms of power, the maximum transmit power of a 6 GHz base station in an urban microcell (Umi) scenario is approximately 52 dBm, while the transmit power of an earth station can reach hundreds or even thousands of watts, making it prone to interference. In terms of antenna pointing, antennas pointing high into the sky in relatively open areas are more likely to cause long-range interference. For example, in drone scenarios, the upward tilt of the base station beam increases the likelihood of long-range interference with terrestrial mobile communication systems; similarly, earth station beams pointing towards the sky at low elevation angles are also prone to long-range interference.

[0170] In this embodiment of the disclosure, the RIM architecture in the terrestrial communication system includes a centralized architecture and a distributed architecture. Referring to the centralized architecture (Framework-0) shown in Figure 1e, the Network Element Node (OAM) plays a unified scheduling role. The OAM can collect information on the interfering earth stations and the interfered earth stations, generate and implement appropriate interference avoidance schemes. The transmission and cessation of reference signals and the generation of interference avoidance schemes in RIM are all the responsibility of the OAM, indicating a high degree of dependence on the OAM. Referring to the distributed architecture (Framework-1) shown in Figure 1f, interference avoidance is achieved based on air interface signal transmission between earth stations. The structure is simpler and does not rely on the coordination of the OAM.

[0171] For TDD satellite communication systems, the main entities causing and receiving interference are the earth stations acting as users. Neither the centralized nor the distributed architectures mentioned above can meet the latency requirements of satellite communication. In the centralized architecture, the interference avoidance strategy is entirely determined by the OAM configuration, making its construction and scheduling complex. Satellite communication latency is higher than terrestrial latency, and relying solely on satellite scheduling is insufficient to meet the highly dynamic processing requirements. In the distributed architecture, the information exchanged between the interfered and the interfering base stations is limited, and earth stations cannot independently perform interference avoidance based on air interface signal transmission in satellite communication. Therefore, for the potential interference reversal (RI) problem in satellite communication systems, an effective interaction method is needed for interference avoidance.

[0172] Figure 2a is an interactive schematic diagram of a RIM method provided according to an embodiment of the present disclosure. As shown in Figure 2a, the RIM method of this embodiment includes:

[0173] In step S2101, the first network device 101 determines that RI exists.

[0174] In some embodiments, in conjunction with the description of the foregoing embodiments, the first network device 101, i.e. the disturbed earth station, may be remotely interfered with by one or more second network devices 103 due to atmospheric waveguide phenomena. The second network device 103 is the disturbing earth station or the remote base station.

[0175] In some embodiments, the first network device 101 determines the presence of RI when it detects interference noise that conforms to a set characteristic.

[0176] Optionally, the characteristic can be set to, for example, that the interference noise exhibits a tilting characteristic as shown in Figure 2b within a set time period. As shown in Figure 2b, when the first network device 101 receives the cumulative uplink signals from multiple second network devices 103 at different distances, the interference on the downlink (DL) symbols of the first network device 101 will exhibit a tilting phenomenon.

[0177] Optionally, Figure 2c is a schematic diagram of the interference noise (IOT) distribution of a disturbed base station (Victim) in a terrestrial network. Referring to Figure 2c, the interference noise (RI) is caused by the cumulative signals of multiple disturbing base stations (Aggressor1 to Aggressor4) at different distances. The farther away a disturbing base station is from the disturbed base station, the longer its downlink signal propagation time will be, and the more uplink symbols (UL symbols) will affect the disturbed base station. Referring to Figure 2c, in the satellite communication system of this embodiment, the RI received by the first network device 101 is caused by the cumulative signals of multiple second network devices 103 at different distances. The farther away a second network device 103 is from the first network device 101, the more downlink symbols (DL symbols) will affect the first network device 101.

[0178] In some embodiments, the first network device 101 may start detecting interference only after connecting to the satellite gateway 102. To save power, it may not detect interference when not connected to the satellite gateway 102.

[0179] In step S2102, the first network device 101 sends a report to the satellite gateway 102.

[0180] Optionally, the report information is used to indicate that the first network device 101 is subject to remote interference RI.

[0181] In some embodiments, the first network device 101 sends a report message indicating that it has detected a “tilted” RI. After sending the report message, the satellite gateway 102 needs to determine a second network device 102 that may be generating an RI for the first network device 101.

[0182] Optionally, after sending the report information, the first network device 101 may wait for a preset time period. For example, it may wait for the satellite gateway to send configuration information within the first time window T1.

[0183] In some embodiments, satellite gateway 102 receives the report information and performs step S2103.

[0184] Optionally, the second network device 103 will only know that it is interfering when it receives the first RS. The first network device 101 cannot send the first RS spontaneously. It needs to report to the satellite gateway first. The satellite gateway 102 needs to ensure that the second network device 103 has downlink time slots to receive the first RS.

[0185] In step S2103, the satellite gateway 102 sends second configuration information to at least one second network device 103.

[0186] In some embodiments, after the satellite gateway 102 receives the report information, it needs to identify one or more second network devices 103 that may cause interference.

[0187] Optionally, at least one second network device 103 is determined by the satellite gateway 102 based on the location of the first network device 101.

[0188] For example, satellite gateway 102 determines a second network device 103 that may cause interference within a certain range near the location of the first network device 101, based on prior information or experience information.

[0189] Optionally, when the second network device 103 experiences an increase in remote interference, it may assume that it is being interfered with, when in fact it is receiving the first RS signal. Therefore, it is necessary for the satellite gateway 102 to configure the potentially interfering second network device 103 to start detecting the first RS.

[0190] Optionally, satellite gateway 102 may participate in the initial decision configuration based on prior information, such as sending first configuration information and second configuration information, and configuring or indicating the transmission and listening timing of the first RS and the second RS. After the initial configuration, satellite gateway 102 may not participate in the subsequent evasion process, and the second network device 103 and the first network device 101 may adaptively perform RI evasion based on air interface signal transmission as in step S2107.

[0191] In some embodiments, the second configuration information is used to configure the first RS (or RS-1) and the second RS (or RS-2), and to instruct the second network device 103 to start listening to the first RS.

[0192] Optionally, the first RS is used to instruct the second network device 103 to generate an RI (Incoming Reference Request) to the first network device 101 and to estimate how much uplink resources of the first network device 101 are interfered with. The second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0193] Optionally, the second configuration information can configure the time-frequency resources or time-frequency location for transmitting the first RS and the time-frequency resources or time-frequency location for transmitting the second RS. The first RS is transmitted by the first network device 101, and the second RS is transmitted by the second network device 103.

[0194] In some embodiments, the transmission time domain position of the first RS satisfies: it is in an uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units; and / or, the transmission time domain position of the second RS satisfies: it is in an uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units.

[0195] Optionally, the time domain unit can be a time slot, millisecond, or window, etc. In this embodiment, the time domain unit is a time slot as an example for explanation.

[0196] Optionally, unlike the frame structure of terrestrial communication systems, and referring to the frame structure of the Iridium satellite in Figure 1d, the TDD frame structure sequence is UL time slot, guard interval, and DL time slot. The position of the first RS or second RS transmission can be in the last X symbols before the UL transmission boundary.

[0197] Optionally, the value of X can be defined by the protocol.

[0198] Optionally, the configuration of the first RS or the second RS for RIM can satisfy at least one of the following:

[0199] (1) It differs from existing RS:

[0200] Unlike RS used for demodulation and measurement;

[0201] It differs from existing RS in resource allocation and sequence design to avoid backward compatibility issues.

[0202] (2) Time-domain mode configuration:

[0203] The periodicity of RS transmission can be defined and configured semi-statically in the network;

[0204] Multiple RS transmission opportunities can be semi-statically configured within a transmission cycle to differentiate RIM RS resources.

[0205] (3) Transmission location:

[0206] The RS transmission position is fixed in the last X symbols before the UL transmission boundary.

[0207] (4) Configuration:

[0208] The first RS or the second RS needs to be distinguished in terms of time and sequence, and configured separately;

[0209] Multiple first RS configurations share the same frequency resources and sequences;

[0210] Multiple secondary RS configurations share the same frequency resources and sequences.

[0211] (5) The network device is configured with multiple RSs for RIM:

[0212] Network devices can perform multiple RIM RS configurations within a configured period;

[0213] The RIM RS transmission cycle is a multiple of the TDD DL / UL mode cycle.

[0214] Optionally, the second configuration information applies to the second network device 103 that receives the configuration.

[0215] Optionally, the second network device 103 receives the second configuration information and can execute step S2104.

[0216] In step S2104, the second network device 103 listens to the first RS according to the second configuration information.

[0217] Optionally, the second network device 103 that receives the second configuration information may listen to or detect the first RS, while the second network device 103 that does not receive the second configuration information may not detect the first RS.

[0218] Optionally, the second network device 103 listens to or detects the second RS at the corresponding time-frequency position configured by the first RS according to the second configuration information.

[0219] Optionally, the second network device 103 may start listening to or detecting the first RS only after receiving the second configuration information.

[0220] In some embodiments, when the second network device 103 starts listening to the first RS, the second network device 103 assumes that the first network device 101 has received the first configuration information sent by the satellite gateway 102; or...

[0221] When the second network device 103 starts listening to the first RS, the first network device 101 receives the first configuration information, in which the second network device 103 does not generate an RI for the first network device 101; or...

[0222] When the second network device 103 starts listening to the first RS, the first network device 101 has not received the first configuration information or has not started sending the first RS; wherein, the first configuration information is used to configure the first reference signal RS and the second RS, and to instruct the first network device to start sending the first RS.

[0223] In some embodiments, the second network device 103 listens to the first RS within a second time window T2.

[0224] Optionally, if the second network device 103 can receive the first RS within T2, it indicates that the second network device 103 generates an RI against the first network device 101, and the evasion behavior in step S2107 needs to be executed.

[0225] Optionally, if the second network device 103 does not receive the first RS within T2, or if the second network device 103 still does not listen to or detect the first RS after the preset T2, it indicates that the RI generated by the second network device 103 has been eliminated or has not generated an RI for the first network device 101. The second network device 103 may stop listening to or detecting RS-1 and restore the original configuration.

[0226] In step S2105, the satellite gateway 102 sends the first configuration information to the first network device 101.

[0227] Optionally, the first configuration information is used to configure the first reference signal RS and the second RS, and to instruct the first network device 101 to start transmitting the first RS.

[0228] Optionally, the configuration of the first RS or the second RS in the first configuration information can be the same as that in the second configuration information, such as the same time-frequency position for transmitting the first RS, or the same time-frequency position for transmitting the first RS.

[0229] In some embodiments, after the first network device 101 sends the report information, it can listen for the first configuration information within the first time window T1.

[0230] Optionally, if the first network device 101 does not receive the first configuration information when the waiting time exceeds the first time window T1, and the RI has not yet disappeared and the communication service is urgent, the first network device 101 can stop waiting and consider other solutions such as switching satellites to avoid interference.

[0231] Optionally, the first network device 101 receives the first configuration information and may execute step S2106.

[0232] In step S2106, the first network device 101 sends the first RS according to the first configuration information and listens to the second RS.

[0233] Optionally, the first network device 101 transmits the first RS at an appropriate time-frequency location based on the first configuration information, and listens for or detects the second RS at an appropriate time-frequency location.

[0234] Optionally, the duration for which the first network device 101 listens to the second RS can meet a preset duration, such as the first network device 101 listening to the second RS within a third time window T3.

[0235] Optionally, steps S2105 to S2106 may be executed after step S2104. That is, the satellite gateway 102 first configures the second network device 103 to start listening to the first RS. This helps ensure that the second network device 103 has a DL time slot to receive the configuration and can receive the first RS sent by the first network device 101. If the first network device 101 is configured to transmit the first RS first, there may be a situation where the first network device 101 sends the first RS but the second network device 103 has not yet started receiving it, resulting in wasted power of the first network device 101 and abnormal interference avoidance process.

[0236] Optionally, to avoid the situation where the second network device 103 continuously transmits uplink data with the satellite gateway 102 and thus fails to receive the first RS sent by the first network device 101, the first network device 101 can only send the first RS after the satellite gateway 102 sends the first configuration information; otherwise, if the waiting time window is exceeded, the interference avoidance strategy is abandoned and other methods are adopted.

[0237] In step S2107, the second network device 103 receives the first RS within the second time window T2 and performs RI evasion behavior.

[0238] Optionally, if the second network device 103 receives the first RS, it indicates that it is interfering with the first network device 101, and needs to adaptively perform RI avoidance behavior.

[0239] In some embodiments, RI circumvention behaviors include at least one or more of the following:

[0240] Reduce transmission power;

[0241] Increase the protection interval between the uplink transmission time domain unit and the downlink transmission time domain unit;

[0242] Increase the elevation angle of the transmitted beam.

[0243] It is understood that the above-described RI avoidance behavior is for illustrative purposes only and not a limitation. Other avoidance schemes can also be adopted, and this embodiment does not limit them.

[0244] In step S2108, the second network device 103 sends the second RS to the first network device 101 according to the second configuration information.

[0245] Optionally, the second RS is used to detect whether the first network device 101 still has an RI after the second network device 103 performs RI evasion behavior.

[0246] Optionally, in conjunction with the implementation of step S2106, the first network device 101 listens to the second RS after receiving the first configuration information.

[0247] In one example, if the first network device 101 is able to receive the second RS, it means that the RI still exists. The first network device 101 continues to send the first RS, that is, continues to execute step S2106.

[0248] In another example, if the first network device 101 does not receive the second RS, it is possible that the interference from the second network device 103 has been eliminated, or there may be other earth stations that are causing the interference.

[0249] In this example, if the first network device 101 determines that the RI meets the conditions, such as returning to a normal level, it stops sending the first RS, that is, stops executing step S2106. Optionally, the RI meeting the conditions or the RI returning to a normal level indicates that the interference has been eliminated or the interference no longer affects communication. For example, the RI receiving the first network device 101 no longer exhibits the tilting characteristic shown in FIG2b.

[0250] Alternatively, in this example, if the first network device 101 determines that the RI does not meet the conditions, such as not returning to the normal level, it indicates that there may be a new unconfigured interfering earth station interfering with the disturbed earth station, and resends the report information to the satellite gateway 102, that is, executes step S2102 again. Optionally, the RI not meeting the conditions or not returning to the normal level may be, for example, the RI received by the first network device 101 still exhibits the tilt characteristics shown in FIG2b.

[0251] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0252] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0253] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0254] In some embodiments, the terms “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, and “RAN-based” can be used interchangeably.

[0255] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0256] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0257] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0258] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0259] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0260] The method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2108, such as the method including step S2102.

[0261] In some embodiments, the order of steps S2104 to S2106 is for illustrative purposes only; for example, the order of the steps may be interchanged.

[0262] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG2a.

[0263] Figure 3a is a schematic diagram of a RIM method according to an embodiment of the present disclosure. As shown in Figure 3a, the RIM method of this embodiment of the present disclosure is executed by a first network device 101, and the method includes:

[0264] Step S3101: Determine that RI exists.

[0265] In some embodiments, the implementation method of step S3101 can be found in the description of the optional implementation method in step S2101, and will not be repeated here.

[0266] Step S3102: Send report information.

[0267] In some embodiments, the implementation method of step S3102 can be found in the description of the optional implementation method in step S2102, and will not be repeated here.

[0268] Step S3103: Obtain the first configuration information.

[0269] In some embodiments, the implementation method of step S3103 can be found in the description of the optional implementation in step S2105, and will not be repeated here.

[0270] Step S3104: Based on the first configuration information, send the first RS and listen to the second RS.

[0271] In some embodiments, the implementation method of step S3104 can be found in the description of the optional implementation in step S2106, and will not be repeated here.

[0272] The method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3104.

[0273] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG3a.

[0274] Figure 3b is a schematic diagram of a RIM method provided according to an embodiment of the present disclosure. As shown in Figure 3b, the RIM method of this embodiment of the present disclosure is executed by a first network device 101, and the method includes:

[0275] Step S3201: Send report information to satellite gateway 102.

[0276] In some embodiments, the implementation method of step S3201 can be found in the description of the optional implementation in step S2102, and will not be repeated here.

[0277] Optionally, the report information is used to indicate that the first network device has been subjected to remote interference (RI).

[0278] In some embodiments, the method further includes:

[0279] The system receives first configuration information sent by a satellite gateway. The first configuration information is used to configure a first reference signal RS and a second RS, and is used to instruct a first network device to start sending the first RS. The first RS is used to instruct a second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0280] Based on the first configuration information, send the first RS to the second network device;

[0281] Based on the first configuration information, listen for the second RS sent by the second network device.

[0282] In some embodiments, the method further includes:

[0283] Listen for the first configuration information within the first time window T1.

[0284] In some embodiments, the first network device can receive the second RS while maintaining the transmission of the first RS.

[0285] In some embodiments, the method further includes:

[0286] If the first network device does not receive the second RS, it will stop sending the first RS once it determines that the RI meets the conditions.

[0287] In some embodiments, the method further includes:

[0288] When the first network device fails to receive the second RS and determines that the RI does not meet the requirements, it resends the report information to the satellite gateway.

[0289] In some embodiments, the first network device determines the presence of an interference noise (RI) when it detects interference noise that conforms to a set characteristic.

[0290] In some embodiments, the transmission time-domain position of the first RS satisfies the following: it is in an uplink time-domain unit, and includes several symbols preceding the boundary between the uplink and downlink time-domain units; and / or,

[0291] The transmission time domain position of the second RS satisfies the following condition: it is in the uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units.

[0292] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG3b.

[0293] Figure 4a is a schematic diagram of a RIM method provided according to an embodiment of the present disclosure. As shown in Figure 4a, the RIM method of this embodiment of the present disclosure is executed by a satellite gateway 102, and the method includes:

[0294] Step S4101: Obtain report information.

[0295] In some embodiments, the implementation method of step S4101 can be found in the description of the optional implementation method in step S2102, and will not be repeated here.

[0296] Step S4102: Send the second configuration information.

[0297] In some embodiments, the implementation method of step S4102 can be found in the description of the optional implementation method in step S2103, and will not be repeated here.

[0298] Step S4103: Send the first configuration information.

[0299] In some embodiments, the implementation method of step S4103 can be found in the description of the optional implementation in step S2105, and will not be repeated here.

[0300] The method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4103.

[0301] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG4a.

[0302] Figure 4b is a schematic diagram of a RIM method provided according to an embodiment of the present disclosure. As shown in Figure 4b, the RIM method of this embodiment of the present disclosure is executed by a satellite gateway 102, and the method includes:

[0303] Step S4201: Receive report information sent by the first network device 101.

[0304] In some embodiments, the implementation method of step S4201 can be found in the description of the optional implementation in step S2102, and will not be repeated here.

[0305] Optionally, the reporting information is used to indicate that the first network device is subject to RI;

[0306] Step S4202: Send second configuration information to at least one second network device 103.

[0307] In some embodiments, the implementation method of step S4202 can be found in the description of the optional implementation in step S2103, and will not be repeated here.

[0308] Optionally, the second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start listening to the first RS, wherein the first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0309] In some embodiments, the method further includes:

[0310] Send first configuration information to the first network device. The first configuration information is used to configure the first reference signal RS and the second RS, and to instruct the first network device to start sending the first RS.

[0311] In some embodiments, the method further includes:

[0312] The first network device retransmits the report information when it does not receive the second RS and the RI still does not meet the conditions.

[0313] In some embodiments, at least one second network device is determined by the satellite gateway based on the location of the first network device.

[0314] In some embodiments, the transmission time-domain position of the first RS satisfies the following: it is in an uplink time-domain unit, and includes several symbols preceding the boundary between the uplink and downlink time-domain units; and / or,

[0315] The transmission time domain position of the second RS satisfies the following condition: it is in the uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units.

[0316] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG4b.

[0317] Figure 5a is a schematic diagram of a RIM method according to an embodiment of the present disclosure. As shown in Figure 5a, the RIM method of this embodiment of the present disclosure is executed by a second network device 103, and the method includes:

[0318] Step S5101: Obtain the second configuration information.

[0319] In some embodiments, the implementation method of step S5101 can be found in the description of the optional implementation method in step S2103, and will not be repeated here.

[0320] Step S5102: Listen to the first RS according to the second configuration information.

[0321] In some embodiments, the implementation method of step S5102 can be found in the description of the optional implementation in step S2104, and will not be repeated here.

[0322] Step S5103: Receive the first RS within the second time window T2 and execute RI evasion behavior.

[0323] In some embodiments, the implementation method of step S5103 can be found in the description of the optional implementation in step S2107, and will not be repeated here.

[0324] Step S5104: Send the second RS according to the second configuration information.

[0325] In some embodiments, the implementation method of step S5104 can be found in the description of the optional implementation in step S2108, and will not be repeated here.

[0326] The method involved in the embodiments of this disclosure may include at least one of steps S5101 to S5104.

[0327] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG5a.

[0328] Figure 5b is a schematic diagram of a RIM method provided according to an embodiment of the present disclosure. As shown in Figure 5b, the RIM method of this embodiment of the present disclosure is executed by a second network device 103, and the method includes:

[0329] Step S5201: Receive the second configuration information sent by the satellite gateway 102.

[0330] In some embodiments, the implementation method of step S5201 can be found in the description of the optional implementation method in step S2103, and will not be repeated here.

[0331] Optionally, the second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start listening to the first RS. The satellite gateway sends the second configuration information after receiving the report information. The report information is used to indicate that the first network device has been subjected to an RI. The first RS is used to instruct the second network device to generate an RI for the first network device. The second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0332] Step S5202: Listen to the first RS sent by the first network device 101 according to the second configuration information.

[0333] In some embodiments, the implementation method of step S5202 can be found in the description of the optional implementation in step S2104, and will not be repeated here.

[0334] In some embodiments, the second network device listens to the first RS within a second time window T2.

[0335] In some embodiments, the method further includes:

[0336] If the first RS is not received within the second time window T2, stop listening to the first RS.

[0337] In some embodiments, the method further includes:

[0338] The first RS is received within the second time window T2, and RI evasion behavior is executed.

[0339] In some embodiments, the method further includes:

[0340] According to the second configuration information, a second RS is sent to the first network device. The second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0341] In some embodiments, RI circumvention behaviors include at least one or more of the following:

[0342] Reduce transmission power;

[0343] Increase the protection interval between the uplink transmission time domain unit and the downlink transmission time domain unit;

[0344] Increase the elevation angle of the transmitted beam.

[0345] It is understood that the above-described RI avoidance behavior is for illustrative purposes only and not a limitation. Other avoidance schemes can also be adopted, and this embodiment does not limit them.

[0346] In some embodiments, when the second network device starts listening to the first RS, the second network device assumes that the first network device has received the first configuration information sent by the satellite gateway; or...

[0347] When the second network device starts listening to the first RS, the first network device receives the first configuration information, in which the second network device does not generate an RI for the first network device; or...

[0348] When the second network device starts listening to the first RS, the first network device has not received the first configuration information or has not started sending the first RS;

[0349] The first configuration information is used to configure the first reference signal RS and the second RS, and to instruct the first network device to start transmitting the first RS.

[0350] In some embodiments, the transmission time-domain position of the first RS satisfies the following: it is in an uplink time-domain unit, and includes several symbols preceding the boundary between the uplink and downlink time-domain units; and / or,

[0351] The transmission time domain position of the second RS satisfies the following condition: it is in the uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units.

[0352] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG5b.

[0353] Figure 6 is a flowchart illustrating the method of an embodiment of this disclosure. The method of this embodiment proposes a signaling interaction mechanism suitable for TDD satellite communication systems, which can meet the latency requirements of satellite communication systems and also possess a certain degree of adaptability to mitigate remote interference problems in TDD satellite communication. Specifically, after the disturbed earth station 101 detects remote interference, it reports the interference to the satellite gateway. The satellite gateway makes a decision and configures the timing for transmitting and listening to RS-1 or RS-2 signals for both the disturbed earth station and the interfering earth station. The configuration of RS-1 and RS-2 can reuse relevant protocols.

[0354] Optionally, the disturbed earth station (Victim) corresponds to the first network device 101 in the aforementioned embodiment, the disturbing earth station (Aggressor) corresponds to the second network device 103 in the aforementioned embodiment, RS-1 corresponds to the first RS in the aforementioned embodiment, and RS-2 corresponds to the second RS in the aforementioned embodiment.

[0355] To facilitate understanding of the method of this disclosure embodiment, referring to FIG6, the method may include the following steps Step 0 to Step 8:

[0356] Step 0: Atmospheric waveguide phenomenon occurs, and the disturbed earth station detects a "tilted" remote interference feature.

[0357] 1) Ground-based remote interference is caused by the cumulative signals from multiple remote base stations at different distances. The farther the base station is, the longer the downlink signal will propagate, and the more uplink symbols will be affected by the disturbed base station. The interference noise (IOT) distribution of the disturbed base station is shown in Figure 2c. Similarly, the disturbed earth station in the TDD satellite communication system will also be affected by the cumulative signal interference from multiple remote earth stations at different distances.

[0358] 2) When atmospheric waveguide phenomena occur, the interference noise of the disturbed base station exhibits a "tilted" phenomenon, as shown in Figure 2b. Similarly, when a TDD-disturbed earth station receives accumulated uplink signals from multiple remote earth stations at different distances, the interference on its downlink symbols will also exhibit a "tilted" phenomenon.

[0359] Step 1: After the disturbed earth station detects the "tilted" remote interference, it reports to the satellite gateway and begins waiting for the gateway to configure RS-1 and RS-2 signals within the time window T1.

[0360] Step 2: Based on prior information, the satellite gateway configures RS-1 and RS-2 signals and interference avoidance procedures for potential interfering earth stations within a certain range near the disturbed earth station, and notifies them that they can start detecting RS-1.

[0361] Step 3: The interfering earth station starts detecting RS-1 according to the satellite gateway configuration. If RS-1 is not detected after the preset time window T2, it means that the earth station is not currently interfering with other earth stations. Then, proceed to Step 8, stop detecting RS-1, and restore the original configuration.

[0362] Step 4: The satellite gateway configures RS-1 and RS-2 signals and interference avoidance procedures for the disturbed earth station, and notifies the disturbed earth station that it can start RS-1 transmission and RS-2 detection.

[0363] Step 5: The disturbed earth station initiates RS-1 transmission and detects the disturbing earth station's RS-2.

[0364] Step 6: After the interfering earth station receives RS-1, it activates a remote interference avoidance scheme (such as increasing the protection interval, reducing the transmission power, etc.); then it sends RS-2 to test whether the remote interference phenomenon of the disturbed earth station still exists.

[0365] Step 7-1: If the disturbed Earth station did not detect RS-2 in Step 5;

[0366] 1) If the interference returns to normal levels, it means that the interference has been successfully avoided and the disturbed earth station has stopped RS-1 transmission;

[0367] 2) If the interference does not return to normal levels, it indicates that there may be new, unconfigured interfering earth stations interfering with the affected earth station. It is necessary to report to the satellite gateway again and return to Step 1.

[0368] Step 7-2: If the disturbed earth station can still detect RS-2 in Step 5, it means that there is still remote interference from the earth station. At this time, the disturbed earth station continues to transmit RS-1 and returns to Step 5.

[0369] Step 8-1: If the interfering earth station does not receive RS-1 within the time window T2 of Step 3, it means that the remote interference has been eliminated. The interfering earth station will then stop detecting RS-1 and restore the original configuration.

[0370] Step 8-2: If the interfering earth station can still receive RS-1 within the time window T2 of Step 3, it means that it is still interfering with other earth stations. Continue to implement the remote interference avoidance scheme and return to Step 6.

[0371] Optionally, the following descriptions apply to signaling procedures Step 1, Step 2, and Step 4:

[0372] In Step 1, RS-1 is used to inform the interfering earth station that it is interfering with the affected earth station and to estimate how many UL resources of the affected earth station are being interfered with. RS-2 is used to test whether the interference still exists after the interfering earth station implements an interference mitigation plan. If the waiting time of the affected earth station exceeds the preset time window T1 and the remote interference has not disappeared, and the business is urgent, then the waiting is stopped, and other solutions such as satellite switching are considered to avoid interference.

[0373] In Step 2, it is necessary to configure and start detecting RS-1 for the disturbing earth station, for two reasons:

[0374] 1) Ensure that the interfering base station has DL timeslots to receive configuration and can receive RS-1 sent by the interfering earth station;

[0375] 2) If RS-1 transmission is configured for the disturbed earth station first, there may be a situation where the disturbed earth station sends RS-1 but the disturbing earth station has not yet started receiving it, resulting in wasted power of the disturbed earth station and abnormal interference avoidance process.

[0376] In Step 4, to prevent the interfering earth station from continuously uplinking with the satellite and thus failing to receive RS-1 from the affected earth station, the affected earth station can only send RS-1 after the satellite gateway is configured. Otherwise, if the waiting time window is exceeded, the interference avoidance strategy is abandoned and other methods are adopted.

[0377] Optionally, the enhancement of this embodiment is the addition of a signaling interaction mechanism between the Aggressor and the Victim earth station and the satellite Gateway. The RS configurations in Steps 1, 2, and 4 can reuse existing protocols. Regarding the configuration of the RIM RS transmission location, note the following: In terrestrial TDD communication systems, the frame structure order of the TD-LTE network is DL time slot, guard interval, UL time slot, and the location of the base station transmitting RS is fixed in the last X symbols before the DL transmission boundary; while in satellite TDD communication systems, taking the Iridium TDD frame structure as an example, its TDD frame structure order is UL time slot, guard interval, DL time slot, so the location of the earth station transmitting RS should be in the last X symbols before the UL transmission boundary.

[0378] Optionally, in this embodiment of the disclosure, the satellite gateway participates in the initial decision configuration based on prior information. After the initial configuration, the satellite gateway no longer participates in the subsequent interference avoidance process. For example:

[0379] 1) Upon detecting remote interference, the satellite gateway makes decisions based on prior information and configures the timing for the disturbed earth station and the interfering earth station to send and listen to RS-1 or RS-2 signals;

[0380] Interference detection only begins after the earth station connects to the satellite; to save power, it is not detected when no connection is established.

[0381] The harassing earth station needs to receive RS-1 to know that it is harassing. Therefore, the harassed earth station cannot send RS-1 spontaneously. It needs to report to the satellite gateway first. The satellite gateway is responsible for ensuring that the harassing earth station has a downlink time slot to receive RS-1.

[0382] When a harassing earth station experiences an increase in remote interference, it may also perceive itself as a harassed earth station, when in reality it is receiving RS-1 signals. Therefore, it is necessary for the satellite gateway to configure which potential harassing earth stations should begin detecting RS-1.

[0383] 2) Once the satellite gateway is configured for the disturbed earth station and the disturbing earth station, it will no longer participate in the subsequent interference avoidance process. The disturbed earth station and the disturbing earth station will perform adaptive interference avoidance based on air interface signal transmission.

[0384] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0385] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD), such as a field-programmable gate array (FPGA). This PLD can include a large number of logic gates, and the connection relationships between these logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules in the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining portion implemented through hardware circuits.

[0386] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0387] Figure 7a is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. As shown in Figure 7a, the network device 7100 may include at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the transceiver module 7101 is used to send report information to a satellite gateway, the report information being used to indicate that the first network device has been subjected to an RI (Report Request).

[0388] Optionally, the transceiver module 7101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the first network device 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module 7102 is used to perform at least one of the other steps performed by the first network device 101 in any of the above methods, which will not be described in detail here.

[0389] Figure 7b is a schematic diagram of the structure of a satellite gateway proposed in an embodiment of this disclosure. As shown in Figure 7b, the satellite gateway 7200 may include at least one of a transceiver module 7201, a processing module 7202, etc. In some embodiments, the transceiver module 7201 receives report information sent by a first network device, the report information being used to indicate that the first network device has received an RI; the transceiver module 7201 is further configured to send second configuration information to at least one second network device, the second configuration information being used to configure a first RS and a second RS, and being used to instruct the second network device to start listening to the first RS, wherein the first RS is used to instruct the second network device to generate an RI against the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

[0390] Optionally, the transceiver module 7201 is used to perform at least one of the communication steps such as sending and / or receiving performed by the satellite gateway 102 in any of the above methods, which will not be described in detail here. Optionally, the processing module 7202 is used to perform at least one of the other steps performed by the satellite gateway 102 in any of the above methods, which will not be described in detail here.

[0391] Figure 7c is a schematic diagram of the network device proposed in an embodiment of this disclosure. As shown in Figure 7c, the network device 7300 may include at least one of a transceiver module 7301, a processing module 7302, etc. In some embodiments, the transceiver module 7301 is used to receive second configuration information sent by a satellite gateway. The second configuration information is used to configure a first RS and a second RS, and to instruct the second network device to start listening to the first RS. The satellite gateway sends the second configuration information after receiving a report, and the report information is used to indicate that the first network device has received an RI. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior. The transceiver module 7301 is also used to listen to the first RS sent by the first network device according to the second configuration information.

[0392] Optionally, the transceiver module 7301 is used to perform at least one of the communication steps such as sending and / or receiving performed by the second network device 103 in any of the above methods, which will not be described in detail here. Optionally, the processing module 7302 is used to perform at least one of the other steps performed by the second network device 103 in any of the above methods, which will not be described in detail here.

[0393] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0394] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0395] Figure 8a is a schematic diagram of the structure of the communication device 8100 proposed in an embodiment of this disclosure. The communication device 8100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 8100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0396] As shown in Figure 8a, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 8100 can be used to execute any of the above methods. Optionally, one or more processors 8101 can be used to invoke instructions to cause the communication device 8100 to execute any of the above methods.

[0397] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0398] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Optionally, all or part of the memories 8103 may be located outside the communication device 8100. In an optional embodiment, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memories 8103 and can be used to receive data from the memories 8103 or other devices, and to send data to the memories 8103 or other devices. For example, the interface circuits 8104 can read data stored in the memories 8103 and send that data to the processor 8101.

[0399] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in this disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG8a. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (8) others, etc.

[0400] Figure 8b is a schematic diagram of the structure of chip 8200 according to an embodiment of this disclosure. For cases where the communication device 8100 can be a chip or a chip system, the schematic diagram of chip 8200 shown in Figure 8b can be referenced, but is not limited thereto.

[0401] Chip 8200 includes one or more processors 8201. Chip 8200 is used to perform any of the methods described above.

[0402] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Optionally, all or part of the memories 8203 may be located outside of chip 8200. Optionally, interface circuit 8202 is connected to memory 8203, and interface circuit 8202 can be used to receive data from memory 8203 or other devices, and interface circuit 8202 can be used to send data to memory 8203 or other devices. For example, interface circuit 8202 can read data stored in memory 8203 and send the data to processor 8201.

[0403] In some embodiments, the interface circuit 8202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 8202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 8202 performs data interaction between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps.

[0404] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0405] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device 8100, cause the communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0406] This disclosure also provides a program product that, when executed by the communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0407] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods. Industrial applicability

[0408] In a satellite communication system, the first network device can monitor whether it is affected by Remote Interference (RI) and report it to the satellite gateway in a timely manner when it is affected by remote interference (RI). The satellite gateway sends second configuration information to the second network device, so that the second network device can listen to RS based on the second configuration information, which facilitates adaptive determination or elimination of interference and improves the system communication quality.

Claims

1. A Remote Interference Management (RIM) method, executed by a first network device, the method comprising: A report is sent to the satellite gateway, the report indicating that the first network device is subject to remote interference (RI).

2. The method of claim 1, wherein, The method further includes: The system receives first configuration information sent by the satellite gateway. The first configuration information is used to configure a first reference signal RS and a second RS, and is used to instruct the first network device to start sending the first RS. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior. Based on the first configuration information, send the first RS to the second network device; Based on the first configuration information, listen for the second RS sent by the second network device.

3. The method of claim 2, wherein, The method further includes: Listen for the first configuration information within the first time window T1.

4. The method of claim 2, wherein, The first network device can receive the second RS and continue sending the first RS.

5. The method of claim 2, wherein, The method further includes: If the first network device does not receive the second RS, it will stop sending the first RS once it determines that the RI meets the conditions.

6. The method of claim 2, wherein, The method further includes: If the first network device does not receive the second RS, and determines that the RI does not meet the conditions, it will resend the report information to the satellite gateway.

7. The method according to any one of claims 1 to 6, wherein, The first network device determines the presence of RI when it detects interference noise that matches the set characteristics.

8. The method as described in any one of claims 2 to 6, wherein, The transmission time-domain position of the first RS satisfies the following conditions: it is within an uplink time-domain unit, and includes several symbols preceding the boundary between the uplink and downlink time-domain units; and / or, The transmission time domain position of the second RS satisfies the following condition: it is in the uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units.

9. A RIM method, executed by a satellite gateway, the method comprising: Receive a report message sent by a first network device, the report message being used to indicate that the first network device has been subjected to an RI; Send second configuration information to at least one second network device. The second configuration information is used to configure a first RS and a second RS, and to instruct the second network device to start listening to the first RS. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

10. The method of claim 9, wherein, The method further includes: Send first configuration information to the first network device. The first configuration information is used to configure a first reference signal RS and a second RS, and to instruct the first network device to start sending the first RS.

11. The method of claim 9, wherein, The method further includes: The first network device retransmits the report information when it has not received the second RS and the RI still does not meet the conditions.

12. The method as claimed in any one of claims 9 to 11, wherein, The at least one second network device is determined by the satellite gateway based on the location of the first network device.

13. The method as claimed in any one of claims 9 to 11, wherein, The transmission time-domain position of the first RS satisfies the following conditions: it is within an uplink time-domain unit, and includes several symbols preceding the boundary between the uplink and downlink time-domain units; and / or, The transmission time domain position of the second RS satisfies the following condition: it is in the uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units.

14. A RIM method, performed by a second network device, the method comprising: The system receives second configuration information sent by a satellite gateway. The second configuration information is used to configure a first RS and a second RS, and to instruct the second network device to start listening to the first RS. The satellite gateway sends the second configuration information after receiving a report, and the report is used to indicate that the first network device has received an RI. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior. Listen to the first RS sent by the first network device according to the second configuration information.

15. The method of claim 14, wherein, The second network device listens to the first RS within the second time window T2.

16. The method of claim 15, wherein, The method further includes: If the first RS is not received within the second time window T2, stop listening to the first RS.

17. The method of claim 15, wherein, The method further includes: If the first RS is received within the second time window T2, RI avoidance behavior is executed.

18. The method of claim 17, wherein, The method further includes: According to the second configuration information, a second RS is sent to the first network device. The second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

19. The method of claim 17 or 18, wherein, The RI avoidance behavior includes at least one or more of the following: Reduce transmission power; Increase the protection interval between the uplink transmission time domain unit and the downlink transmission time domain unit; Increase the elevation angle of the transmitted beam.

20. The method according to any one of claims 14 to 19, wherein, When the second network device begins listening to the first RS, the second network device assumes that the first network device has received the first configuration information sent by the satellite gateway; or... When the second network device begins listening to the first RS, the first network device receives the first configuration information, wherein the second network device has not generated an RI for the first network device; or... When the second network device starts listening to the first RS, the first network device has not received the first configuration information or has not started sending the first RS; The first configuration information is used to configure the first reference signal RS and the second RS, and to instruct the first network device to start transmitting the first RS.

21. The method according to any one of claims 14 to 19, wherein, The transmission time-domain position of the first RS satisfies the following conditions: it is within an uplink time-domain unit, and includes several symbols preceding the boundary between the uplink and downlink time-domain units; and / or, The transmission time domain position of the second RS satisfies the following condition: it is in the uplink time domain unit and includes several symbols before the boundary between the uplink and downlink time domain units.

22. A RIM method, comprising: The first network device sends a report to the satellite gateway, the report indicating that the first network device has been subjected to an RI. After receiving the report information, the satellite gateway sends second configuration information to at least one second network device. The second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start listening to the first RS. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior. The second network device listens to the first RS sent by the first network device according to the second configuration information.

23. A network device, comprising: The transceiver module is used to send report information to the satellite gateway, the report information being used to indicate that the first network device has been subjected to RI.

24. A satellite gateway, comprising: The transceiver module is used to receive report information sent by the first network device, the report information being used to indicate that the first network device has been subjected to RI; The transceiver module is further configured to send second configuration information to at least one second network device. The second configuration information is used to configure a first RS and a second RS, and to instruct the second network device to start listening to the first RS. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior.

25. A network device, comprising: The transceiver module is used to receive second configuration information sent by the satellite gateway. The second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start listening to the first RS. The satellite gateway sends the second configuration information after receiving the report information, which is used to indicate that the first network device has received an RI. The first RS is used to instruct the second network device to generate an RI for the first network device, and the second RS is used to detect whether the first network device still has an RI after the second network device performs RI avoidance behavior. The transceiver module is also used to listen to the first RS sent by the first network device according to the second configuration information.

26. A communication system comprising: The first network device, the satellite gateway, and the second network device, wherein... The first network device is configured to implement the method according to any one of claims 1 to 8; The satellite gateway is configured to implement the method according to any one of claims 9 to 13; The second network device is configured to implement the method of any one of claims 14 to 21.

27. A communication device, comprising: one or more processors; wherein the communication device is configured to implement the method of any one of claims 1 to 8, any one of claims 9 to 13, or any one of claims 14 to 21.

28. A storage medium having stored thereon instructions, wherein the instructions, when executed by a communication device, cause the communication device to perform the method of any one of claims 1 to 8, any one of claims 9 to 13, or any one of claims 14 to 21. ​

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