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 method, equipment, device, system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a remote interference management (RIM) method, device, apparatus, system, and storage medium. Background Art

[0002] Satellite communication systems generally use the frequency division duplex (FDD) mode. With the increasing demand for direct-to-satellite services (D2SS), the application of the time division duplex (TDD) mode is expected to alleviate the frequency resource shortage in satellite communication systems and promote satellite-ground integration. However, the large-scale application of TDD in satellite communication systems may lead to remote interference (RI) issues.

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide a remote interference management (RIM) method, device, apparatus, system, and storage medium.

[0005] In a first aspect, an embodiment of the present disclosure provides a RIM method, performed by a first network device, the method comprising:

[0006] Sending report information to a satellite gateway, where the report information is used to indicate that the first network device is subject to remote interference (RI).

[0007] In a second aspect, an embodiment of the present disclosure provides a RIM method, which is performed by a satellite gateway. The method includes:

[0008] receiving report information sent by a first network device, where the report information is used to indicate that the first network device receives an RI;

[0009] Send second configuration information to at least one second network device, where the second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start monitoring 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.

[0010] In a third aspect, an embodiment of the present disclosure provides a RIM method, performed by a second network device, the method comprising:

[0011] receiving second configuration information sent by a satellite gateway, where the second configuration information is used to configure a first RS and a second RS and to instruct the second network device to start monitoring the first RS, wherein the satellite gateway sends the second configuration information after receiving report information, where 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 an RI avoidance behavior;

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

[0013] In a fourth aspect, an embodiment of the present disclosure provides a RIM method, including:

[0014] The first network device sends report information to the satellite gateway, where the report information is used to indicate that the first network device receives RI;

[0015] After receiving the report information, the satellite gateway sends second configuration information to at least one second network device, where the second configuration information is used to configure the first RS and the second RS, and is used to instruct the second network device to start monitoring 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 the RI avoidance behavior;

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

[0017] In a fifth aspect, an embodiment of the present disclosure provides a network device, including:

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

[0019] In a sixth aspect, an embodiment of the present disclosure provides a satellite gateway, including:

[0020] a transceiver module, configured to receive report information sent by a first network device, where the report information is used to indicate that the first network device has received an RI;

[0021] The transceiver module is further used to send second configuration information to at least one second network device, where the second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start monitoring 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.

[0022] In a seventh aspect, an embodiment of the present disclosure provides a network device, including:

[0023] a transceiver module, configured to receive second configuration information sent by a satellite gateway, 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 monitoring the first RS, wherein the satellite gateway sends the second configuration information after receiving report information, the report information being used to indicate that the first network device has received an RI; the first RS being used to instruct the second network device to generate an RI for the first network device, and the second RS being used to detect whether the first network device still has an RI after the second network device performs an RI avoidance behavior;

[0024] The transceiver module is further configured to monitor a first RS sent by the first network device according to the second configuration information.

[0025] In an eighth aspect, an embodiment of the present disclosure provides a communication system, comprising: a first network device, a satellite gateway, and a second network device, wherein:

[0026] The first network device is configured to implement the method according to 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] In a ninth aspect, an embodiment of the present disclosure provides 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, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0033] When the instruction is executed on a communication device, the communication device is caused to execute the method as described in the first aspect, the second aspect or the third aspect.

[0034] In the disclosed embodiment, in a satellite communication system, a first network device can monitor whether it is affected by RI on its own, and promptly report to a satellite gateway when it is affected by remote interference RI; second configuration information is sent to a second network device through the satellite gateway, so that the second network device can monitor RS based on the second configuration information, thereby facilitating adaptive determination or elimination of interference, thereby improving system communication quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0036] FIG1a is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0037] 1b to 1c are schematic diagrams of long-range interference generation according to an embodiment of the present disclosure;

[0038] FIG1d is a schematic diagram of an Iridium frame structure provided according to an embodiment of the present disclosure;

[0039] 1e to 1f are schematic diagrams of a RIM according to an embodiment of the present disclosure;

[0040] FIG2a is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0041] FIG2b is a schematic diagram of interference noise tilt provided according to an embodiment of the present disclosure;

[0042] FIG2c is a schematic diagram of interference of interfering earth stations at different distances according to an embodiment of the present disclosure;

[0043] 3a to 3b are exemplary flowcharts of a method according to an embodiment of the present disclosure;

[0044] 4a and 4b are exemplary flowcharts of a method according to an embodiment of the present disclosure;

[0045] 5a to 5b are exemplary flowcharts of a method according to an embodiment of the present disclosure;

[0046] FIG6 is an exemplary interaction diagram of the method provided by an embodiment of the present disclosure;

[0047] FIG7a is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

[0048] FIG7 b is a schematic structural diagram of a satellite gateway according to an embodiment of the present disclosure;

[0049] FIG7c is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

[0050] FIG8a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0051] FIG8 b is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0052] Embodiments of the present disclosure provide a remote interference management (RIM) method, device, apparatus, system, and storage medium.

[0053] In a first aspect, an embodiment of the present disclosure provides a RIM method, performed by a first network device, the method comprising:

[0054] Sending report information to a satellite gateway, where the report information is used to indicate that the first network device is subject to remote interference (RI).

[0055] In the above embodiment, in the satellite communication system, the first network device can monitor whether it is affected by RI and promptly report it to the satellite gateway when it is affected by remote interference RI; the second configuration information is sent to the second network device through the satellite gateway, so that the second network device can monitor the reference signal (RS) based on the second configuration information, so as to facilitate 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] receiving first configuration information sent by the satellite gateway, where 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; 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 an RI avoidance behavior;

[0058] Sending a first RS to the second network device according to the first configuration information;

[0059] According to the first configuration information, a second RS sent by the second network device is monitored.

[0060] In the above embodiment, the first network device receives the first configuration information to obtain information about the relevant reference signal, so as to send the first RS at an appropriate time and monitor the second RS, thereby interacting with the second network device based on the reference signal to efficiently determine the network device that implements interference.

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

[0062] The first configuration information is monitored within a first time window T1.

[0063] In the above embodiment, 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 T1, the first network device may promptly execute other measures to improve communication efficiency.

[0064] In combination with the embodiments of the first aspect, in some embodiments, the first network device can receive the second RS and keep sending 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, it is necessary to continue to generate the first RS to prompt the second network device that may cause interference so that the second network device can take an avoidance plan in time.

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

[0067] The first network device does not receive the second RS, and when determining that the RI meets the condition, stops sending the first RS.

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

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

[0070] The first network device does not receive the second RS, and when determining that the RI does not meet the condition, 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 still does not return to a normal level, it indicates that there may be other remote interfering devices. Therefore, by resending the report information, the satellite gateway can be reconfigured to eliminate the RI.

[0072] In combination with the embodiments of the first aspect, in some embodiments, the first network device determines that RI exists when detecting interference noise that meets set characteristics.

[0073] In the above embodiment, the first network device may determine whether RI exists based on the detected interference noise, and thus may report RI to the satellite gateway in a timely manner when RI is found, so as to facilitate RIM.

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

[0075] The sending time domain position of the second RS satisfies: being in the uplink time domain unit and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit.

[0076] In the above embodiment, based on the time domain position of the first RS or the second RS, the first network device may send the first RS at an appropriate time, or monitor the second RS at an appropriate position.

[0077] In a second aspect, an embodiment of the present disclosure provides a RIM method, which is performed by a satellite gateway. The method includes:

[0078] receiving report information sent by the first network device, where the report information is used to indicate that the first network device receives RI;

[0079] Second configuration information is sent to at least one second network device, where the second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start monitoring 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.

[0080] In the above embodiment, the satellite gateway learns, based on the received report information, that the first network device is subject to RI, and configures a reference signal for at least one second network device that may cause interference by sending second configuration information, so that the second network device can monitor the RS based on the second configuration information, thereby facilitating adaptive determination or elimination of interference, thereby improving system communication quality.

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

[0082] First configuration information is sent to the first network device, where 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.

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

[0084] The report information resent by the first network device is received, wherein the first network device resends the report information when the second RS is not received and the RI still does not meet the condition.

[0085] In combination with the embodiments of the second aspect, in some embodiments, at least one second network device is determined by a satellite gateway according to a location of the first network device.

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

[0087] The sending time domain position of the second RS satisfies: being in the uplink time domain unit and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit.

[0088] In a third aspect, an embodiment of the present disclosure provides a RIM method, performed by a second network device, the method comprising:

[0089] receiving second configuration information sent by the satellite gateway, where the second configuration information is used to configure the first RS and the second RS and to instruct the second network device to start monitoring the first RS, wherein the satellite gateway sends the second configuration information after receiving the report information, where the report information is used to indicate that the first network device receives the RI of the second network device;

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

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

[0092] In combination with the embodiments of the third aspect, in some embodiments, the second network device monitors the first RS within the second time window T2.

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

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

[0095] When the first RS is received within the second time window T2, RI avoidance behavior is performed.

[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, where the second RS is used to detect whether the first network device still has an RI after the second network device performs the RI avoidance behavior.

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

[0099] Reduce transmit power;

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

[0101] Increase the transmit beam elevation angle.

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

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

[0104] When the second network device starts to monitor the first RS, the first network device does not receive the first configuration information or does not start to send the first RS;

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

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

[0107] The sending time domain position of the second RS satisfies: being in the uplink time domain unit and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit.

[0108] In a fourth aspect, an embodiment of the present disclosure provides a RIM method, including:

[0109] The first network device sends report information to the satellite gateway, where the report information is used to indicate that the first network device receives RI;

[0110] After receiving the report information, the satellite gateway sends second configuration information to at least one second network device, where the second configuration information is used to configure the first RS and the second RS and to instruct the second network device to start monitoring 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 the RI avoidance behavior;

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

[0112] In a fifth aspect, an embodiment of the present disclosure provides a network device, including:

[0113] The transceiver module is used to send report information to the satellite gateway, where the report information is used to indicate that the first network device receives RI.

[0114] In a sixth aspect, an embodiment of the present disclosure provides a satellite gateway, including:

[0115] a transceiver module, configured to receive report information sent by a first network device, where the report information is used to indicate that the first network device has received an RI;

[0116] The transceiver module is further used to send second configuration information to at least one second network device, where the second configuration information is used to configure the first RS and the second RS, and to instruct the second network device to start monitoring 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.

[0117] In a seventh aspect, an embodiment of the present disclosure provides a network device, including:

[0118] a transceiver module, configured to receive second configuration information sent by a satellite gateway, 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 monitoring the first RS, wherein the satellite gateway sends the second configuration information after receiving report information, the report information being used to indicate that the first network device has received an RI; 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 an RI avoidance behavior;

[0119] The transceiver module is further configured to monitor a first RS sent by the first network device according to the second configuration information.

[0120] In an eighth aspect, an embodiment of the present disclosure provides a communication system, comprising: a first network device, a satellite gateway, and a second network device, wherein:

[0121] The first network device is configured to implement the method according to 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] In a ninth aspect, an embodiment of the present disclosure provides 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, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0128] When the instruction is executed on a communication device, the communication device is caused to execute the method as described in the first aspect, the second aspect or the third aspect.

[0129] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0130] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0131] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0132] It is understandable that the above-mentioned network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0133] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain 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 certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0134] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0135] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0136] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0137] In the embodiments of the present disclosure, “plurality” refers to two or more.

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

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

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

[0141] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0142] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0143] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0144] In some embodiments, terms such as "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 less than", and "above" can be replaced with each other, and terms such as "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" can be replaced with each other.

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

[0146] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, 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", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or 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", "bandwidth part (BWP)", etc.

[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, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

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

[0151] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0152] FIG1 a is a schematic diagram showing the architecture of a communication system 100 according to an embodiment of the present disclosure.

[0153] As shown in FIG1 a , a communication system 100 may be a non-terrestrial network (NTN) system, such as a satellite communication system, and 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 subject to RI during communication and may be referred to as a victim network device, a victim base station, or a victim earth station (victim). The second network device 103 may be a device that interferes during communication and may be referred to as an interfering network device, an interfering base station, or an interfering earth station (aggressor). The earth station may be an access network device for connecting to a core network device.

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

[0156] Optionally, the technical solution of the present disclosure may be applicable to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure may become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

[0157] Optionally, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0158] Optionally, the core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a 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 with different orbits, altitudes, and coverage areas.

[0160] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0161] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG. 1 a , or a partial body thereof, but are not limited thereto.

[0162] The entities shown in Figure 1a are examples. The communication system may include all or part of the entities in Figure 1a, or may include other entities outside Figure 1a. The number and form of the entities are arbitrary. The connection relationship between the entities is an example. The entities may be connected or disconnected, and the connection may be in any manner, which may be direct or indirect, and may be wired or wireless.

[0163] The embodiments of the present disclosure 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 (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (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 utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0164] In the disclosed embodiments, 3GPP standardizes the FDD mode satellite communication system, and the TDD mode satellite communication system is subject to further research. Among them, TDD mode satellite communication may include the following features: in terms of antenna structure, the transmitter and receiver share a group of antennas, which can simplify the satellite or terminal structure; in terms of frequency allocation, it supports compatibility between satellite and terrestrial mobile communications and can reuse the terrestrial industry chain; in terms of transmission delay, it is longer than the FDD mode delay, and a protection interval is required between the uplink and downlink links, which may cause resource waste; in terms of scheduling timing, the uplink and downlink time slots are discontinuous, and the scheduling timing requirements are strict; in terms of interference management, there is interference between the uplink and downlink links. Based on the characteristics of TDD mode satellite communication, if the TDD mode is applied on a large scale in satellite communication systems, long-range interference problems may occur.

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

[0166] As shown in Figure 1b, in terrestrial communication systems, the downlink transmission power of a TDD base station is typically much higher than the uplink transmission power. Under certain atmospheric conditions, air stratification can form a waveguide in the troposphere. The downlink transmission signal can enter the tropospheric waveguide and propagate hundreds of kilometers with low propagation loss, causing interference to the uplink of a distant base station (such as the base station on the lower side of the figure). RI can last from several minutes to several hours, and the propagation distance can even exceed 300km, causing long-term and large-scale interference to the TDD mobile communication system. In the figure, D represents a downlink symbol, U represents an uplink symbol, and GP represents a guard interval.

[0167] As shown in Figure 1c, in a TDD satellite communication system, an earth station's uplink signal can cause RI on the downlink signals of other earth stations. For example, when earth station A is uplinking to a satellite, its uplink signal enters the tropospheric waveguide and is transmitted through the tropospheric waveguide to earth station V, hundreds of kilometers away. Earth station V is also downlinking to a satellite. At this point, it receives not only the satellite's downlink signal but also the uplink signal from distant earth station A, causing RI on the satellite's downlink.

[0168] Take the Iridium frame structure shown in Figure 1d as an example. Assume that the satellite is an Iridium satellite. V represents the disturbed earth station, A1~A N =N represents N different interfering earth stations. Due to the transmission delay caused by the tropospheric waveguide, different interfering earth stations will generate RI to the victim earth station. Among them, Iridium is a commercial satellite system using TDD mode.

[0169] In some embodiments, the presence of RI in a TDD system may be due to various reasons. For example, in terms of frequency, the frequency range in which the atmospheric ducting effect occurs is usually 0.3-30 GHz, and the signal frequency of the earth station overlaps with this range to a large extent. In terms of power, the maximum transmission power of a 6GHz base station in an urban microcell scenario (Umi) is about 52 dBm, while the transmission power of an earth station is as high as several hundred or even kilowatts, which is prone to interference. In terms of antenna pointing, an antenna pointing to a high altitude and a relatively open area is prone to long-range interference. For example, in a drone scenario, the upward tilt of the base station beam will increase the possibility of long-range interference in the ground mobile communication system; the earth station beam pointing to the sky and a beam with a lower elevation angle are also prone to long-range interference.

[0170] In the disclosed embodiment, 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 FIG1e , the network element node (OAM) plays a unified scheduling role. OAM can collect information about the interfering earth station and the interfered earth station, and generate and implement appropriate interference avoidance schemes. Among them, the transmission and stopping of the reference signal in the RIM and the generation of the interference avoidance scheme are all responsible for OAM, and the degree of dependence on OAM is relatively high. Referring to the distributed architecture (Framework-1) shown in FIG1f , interference avoidance is achieved based on air interface signal transmission between earth stations. The structure is relatively simple and does not rely on the coordination of OAM.

[0171] In TDD satellite communication systems, the interfering and affected entities are earth stations, acting as users. Neither the centralized nor the distributed architectures described above can meet the latency requirements of satellite communications. The interference avoidance strategy of the centralized architecture is entirely determined by OAM configuration, making this architecture complex to build and schedule. Satellite communication latency is greater than that of terrestrial systems, and relying solely on satellite scheduling makes it difficult to meet highly dynamic processing requirements. In a distributed architecture, the information that can be exchanged between the affected and interfering base stations is limited. Furthermore, in satellite communications, earth stations cannot independently perform interference avoidance based on air interface signal transmission. Therefore, effective interaction methods are needed to address potential RI issues in satellite communication systems and implement interference avoidance.

[0172] FIG2a is an interactive diagram of a RIM method according to an embodiment of the present disclosure. As shown in FIG2a, the RIM method according to an embodiment of the present disclosure includes:

[0173] Step S2101: The first network device 101 determines that an RI exists.

[0174] In some embodiments, combined with the description of the foregoing embodiments, the first network device 101 is a disturbed earth station, which may be subject to remote interference from one or more second network devices 103 due to the atmospheric duct phenomenon. The second network device 103 is an interfering earth station or a remote base station.

[0175] In some embodiments, the first network device 101 determines that RI exists when detecting interference noise that meets set characteristics.

[0176] Optionally, the set characteristic is, for example, that the interference noise exhibits a tilt characteristic as shown in FIG2b within a set period. As shown in FIG2b, when the first network device 101 receives accumulated uplink signals from multiple second network devices 103 at different distances, the interference to the downlink (DL) symbols of the first network device 101 will exhibit a tilt phenomenon.

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

[0178] In some embodiments, the first network device 101 may start detecting whether interference exists only after connecting to the satellite gateway 102 . To save power consumption, the first network device 101 may not detect interference when no connection is established with the satellite gateway 102 .

[0179] In step S2102 , the first network device 101 sends report information 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 to indicate that it has detected a “skewed” RI. After sending the report message, the satellite gateway 102 needs to determine the second network device 102 that may generate RI for the first network device 101.

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

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

[0184] Optionally, the second network device 103 will know that it is interfering only when it receives the first RS. The first network device 101 cannot send the first RS spontaneously and needs to report to the satellite gateway first. The satellite gateway 102 needs to ensure that the second network device 103 has a downlink time slot 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 receiving the report information, the satellite gateway 102 needs to determine one or more second network devices 103 that may cause interference.

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

[0188] For example, the satellite gateway 102 determines the second network device 103 that potentially interferes 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 increased long-range interference, it may believe that it is being interfered with, but is actually receiving the first RS signal. Therefore, it is necessary for the satellite gateway 102 to configure the second network device 103 as a potential interferer to start detecting the first RS.

[0190] Optionally, the satellite gateway 102 may participate in the initial decision-making configuration based on prior information, such as issuing first and second configuration information, and configuring or indicating the transmission and monitoring timings of the first RS and the transmission and monitoring timings of the second RS. After the initial configuration, the satellite gateway 102 may not participate in the subsequent avoidance process. The second network device 103 and the first network device 101 adaptively perform RI avoidance based on air interface signal transmission, as shown 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 is used to instruct the second network device 103 to start monitoring the first RS.

[0192] Optionally, the first RS is used to instruct the second network device 103 to generate RI for the first network device 101 and calculate 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 RI after the second network device performs RI avoidance.

[0193] Optionally, the second configuration information may configure the time-frequency resource or time-frequency position for sending the first RS and the time-frequency resource or time-frequency position for sending the second RS, wherein the first RS is sent by the first network device 101 and the second RS is sent by the second network device 103.

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

[0195] Optionally, the time domain unit may be a time slot, a millisecond, a window or other unit. This embodiment is described by taking the time domain unit as a time slot as an example.

[0196] Optionally, unlike the frame structure of terrestrial communication systems, in conjunction with the frame structure of Iridium in FIG1d , the TDD frame structure is sequentially UL time slot, guard interval, and DL time slot. The first RS or second RS transmission position can be in the last X symbols before the UL transmission boundary.

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

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

[0199] (1) Differences from existing RS:

[0200] Different from RS used for demodulation and measurement;

[0201] It is differentiated from existing RS in terms of resource configuration and sequence design to avoid backward compatibility issues.

[0202] (2) Time domain mode configuration:

[0203] Defines the periodicity of RS transmission, which can be semi-statically configured in the network;

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

[0205] (3) Transmission location:

[0206] The transmission position of the RS is fixed to 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 time and sequence and configured separately;

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

[0210] The multiple second RS configurations share the same frequency resources and sequence.

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

[0212] Network devices can perform multiple RIM RS configurations within a configuration cycle;

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

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

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

[0216] Step S2104: The second network device 103 monitors the first RS according to the second configuration information.

[0217] Optionally, the second network device 103 that receives the second configuration information monitors or detects 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 monitors or detects the second RS at the corresponding time-frequency position according to the time-frequency position of the first RS configured by the second configuration information.

[0219] Optionally, the second network device 103 starts to monitor or detect the first RS after receiving the second configuration information.

[0220] In some embodiments, when the second network device 103 starts to monitor the first RS, the second network device 103 believes 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 to monitor the first RS, the first network device 101 receives the first configuration information, wherein 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 to monitor the first RS, the first network device 101 has not received the first configuration information or has not started to send the first RS; wherein the first configuration information is used to configure the first reference signal RS and the second RS, and is used 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 the second time window T2.

[0224] Optionally, if the second network device 103 can receive the first RS within T2, it means that the second network device 103 generates an RI for the first network device 101, and the avoidance behavior of step S2107 needs to be performed.

[0225] Optionally, if the second network device 103 does not receive the first RS within T2, or the second network device 103 still does not monitor or detect the first RS after the preset T2, it means that the RI generated by the second network device 103 has been eliminated or no RI is generated for the first network device 101. The second network device 103 can stop monitoring or detecting RS-1 and restore the original configuration.

[0226] In step S2105 , the satellite gateway 102 sends 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 is used to instruct the first network device 101 to start sending the first RS.

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

[0229] In some embodiments, after the first network device 101 sends the report information, it may monitor 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 disappeared at this time and the communication service is urgent, the first network device 101 can stop waiting and consider other solutions such as satellite switching to avoid interference.

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

[0232] Step S2106: The first network device 101 sends the first RS according to the first configuration information, and monitors the second RS.

[0233] Optionally, the first network device 101 sends the first RS at an appropriate time-frequency position based on the first configuration information, and monitors or detects the second RS at an appropriate time-frequency position.

[0234] Optionally, the duration for which the first network device 101 monitors the second RS may meet a preset duration, for example, the first network device 101 monitors the second RS within the third time window T3.

[0235] Optionally, steps S2105 to S2106 may be performed after step S2104, that is, the satellite gateway 102 first configures the second network device 103 to start monitoring the first RS, which is conducive to ensuring that the second network device 103 can have a DL time slot to accept 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, it is possible that the first network device 101 sends the first RS but the second network device 103 has not yet started receiving it, resulting in power waste of the first network device 101 and abnormal interference avoidance process.

[0236] Optionally, in order to avoid the situation where the second network device 103 is always performing uplink transmission with the satellite gateway 102 and cannot 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] Step S2107: The second network device 103 receives the first RS within the second time window T2 and performs RI avoidance.

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

[0239] In some embodiments, the RI avoidance behavior includes at least one or more of the following:

[0240] Reduce transmit power;

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

[0242] Increase the transmit beam elevation angle.

[0243] It is understandable that the above RI avoidance behavior is only for illustration and not limitation. Other avoidance solutions may also be adopted, which are not limited in this embodiment.

[0244] Step S2108 : The second network device 103 sends a 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 the RI avoidance behavior.

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

[0247] In an example, if the first network device 101 is able to receive the second RS, it indicates that the RI still exists, and the first network device 101 keeps sending the first RS, ie, 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 interfering earth stations.

[0249] In this example, if the first network device 101 determines that the RI meets a condition, such as returning to a normal level, it stops sending the first RS, i.e., stops executing step S2106. Optionally, the RI meeting the condition 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 meeting the condition or the RI returning to a normal level means that the RI received by the first network device 101 no longer exhibits the tilt characteristic shown in Figure 2b.

[0250] Alternatively, in this example, if the first network device 101 determines that the RI does not meet the conditions, such as if it has not returned to a normal level, this indicates that a new, unconfigured interfering earth station may be interfering with the victim earth station, and the first network device 101 resends the report information to the satellite gateway 102, i.e., executing step S2102 again. Alternatively, the RI does not meet the conditions or has not returned to a normal level, for example, because the RI received by the first network device 101 still exhibits the tilt characteristic shown in Figure 2b.

[0251] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and 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, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0253] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "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)", "RAN-based" and the like may be used interchangeably.

[0255] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

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

[0257] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0258] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, 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 recipient to respond to the content sent.

[0260] The method involved in the embodiment of the present 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 illustration only, and for example, the order of the steps can be interchanged.

[0262] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 a .

[0263] FIG3a is a schematic diagram of a RIM method according to an embodiment of the present disclosure. As shown in FIG3a , the RIM method according to an embodiment of the present disclosure is performed by the first network device 101 and includes:

[0264] Step S3101: Determine whether RI exists.

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

[0266] Step S3102, sending report information.

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

[0268] Step S3103: Obtain first configuration information.

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

[0270] Step S3104: Send the first RS and monitor the second RS according to the first configuration information.

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

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

[0273] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 a .

[0274] FIG3b is a schematic diagram of a RIM method according to an embodiment of the present disclosure. As shown in FIG3b , the RIM method according to an embodiment of the present disclosure is performed by the first network device 101 and includes:

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

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

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

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

[0279] receiving first configuration information sent by the satellite gateway, where 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; 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 an RI avoidance behavior;

[0280] Sending a first RS to the second network device according to the first configuration information;

[0281] According to the first configuration information, a second RS sent by the second network device is monitored.

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

[0283] The first configuration information is monitored within a first time window T1.

[0284] In some embodiments, the first network device is able to receive the second RS and keep sending the first RS.

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

[0286] The first network device does not receive the second RS, and when determining that the RI meets the condition, stops sending the first RS.

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

[0288] The first network device does not receive the second RS, and when determining that the RI does not meet the condition, resends the report information to the satellite gateway.

[0289] In some embodiments, the first network device determines that RI exists when detecting interference noise that meets a set characteristic.

[0290] In some embodiments, the transmission time domain position of the first RS satisfies: in the uplink time domain unit, and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit; and / or,

[0291] The sending time domain position of the second RS satisfies: being in the uplink time domain unit and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit.

[0292] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 b .

[0293] FIG4a is a schematic diagram of a RIM method according to an embodiment of the present disclosure. As shown in FIG4a , the RIM method according to an embodiment of the present disclosure is executed by the satellite gateway 102 and includes:

[0294] Step S4101, obtain report information.

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

[0296] Step S4102: Send second configuration information.

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

[0298] Step S4103: Send first configuration information.

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

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

[0301] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 a .

[0302] FIG4 b is a schematic diagram of a RIM method according to an embodiment of the present disclosure. As shown in FIG4 b , the RIM method according to an embodiment of the present disclosure is executed by the satellite gateway 102 and 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 refer to the description of the optional implementation method in step S2102, which will not be repeated here.

[0305] Optionally, the report 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 refer to the description of the optional implementation method in step S2103, which 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 monitoring the first RS, wherein the first RS is used to instruct the second network device to generate RI for the first network device, and the second RS is used to detect whether the first network device still has RI after the second network device performs RI avoidance behavior.

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

[0310] First configuration information is sent to the first network device, where 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.

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

[0312] The report information resent by the first network device is received, wherein the first network device resends the report information when the second RS is not received and the RI still does not meet the condition.

[0313] In some embodiments, the at least one second network device is a satellite gateway determined according to a location of the first network device.

[0314] In some embodiments, the transmission time domain position of the first RS satisfies: in the uplink time domain unit, and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit; and / or,

[0315] The sending time domain position of the second RS satisfies: being in the uplink time domain unit and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit.

[0316] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 b .

[0317] FIG5a is a schematic diagram of a RIM method according to an embodiment of the present disclosure. As shown in FIG5a , the RIM method according to an embodiment of the present disclosure is performed by the second network device 103 and includes:

[0318] Step S5101: Obtain second configuration information.

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

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

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

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

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

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

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

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

[0327] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 5 a .

[0328] FIG5b is a schematic diagram of a RIM method according to an embodiment of the present disclosure. As shown in FIG5b , the RIM method according to an embodiment of the present disclosure is performed by the second network device 103 and includes:

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

[0330] In some embodiments, the implementation method of step S5201 can refer to the description of the optional implementation method in step S2103, which 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 monitoring the first RS, wherein 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 is subject to RI; the first RS is used to instruct the second network device to generate RI for the first network device, and the second RS is used to detect whether the first network device still has RI after the second network device performs RI avoidance behavior.

[0332] Step S5202: Monitor 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 refer to the description of the optional implementation method in step S2104, which 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 comprises:

[0336] If the first RS is not received within the second time window T2, monitoring of the first RS is stopped.

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

[0338] When the first RS is received within the second time window T2, RI avoidance behavior is performed.

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

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

[0341] In some embodiments, the RI avoidance behavior includes at least one or more of the following:

[0342] Reduce transmit power;

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

[0344] Increase the transmit beam elevation angle.

[0345] It is understandable that the above RI avoidance behavior is only for illustration and not limitation. Other avoidance solutions may also be adopted, which are not limited in this embodiment.

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

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

[0348] When the second network device starts to monitor the first RS, the first network device does not receive the first configuration information or does not start to send the first RS;

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

[0350] In some embodiments, the transmission time domain position of the first RS satisfies: in the uplink time domain unit, and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit; and / or,

[0351] The sending time domain position of the second RS satisfies: being in the uplink time domain unit and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit.

[0352] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 5 b .

[0353] FIG6 is a flow chart of a method according to an embodiment of the present disclosure. The method according to an embodiment of the present disclosure proposes a signaling interaction mechanism suitable for TDD satellite communication systems. This mechanism not only meets the latency requirements of satellite communication systems but also possesses a certain degree of adaptability to mitigate long-range interference issues in TDD satellite communications. After a victim earth station 101 detects long-range interference, it reports the interference to a satellite gateway. The gateway then makes a decision and configures the transmission and monitoring timings of RS-1 or RS-2 signals for both the victim and interfering earth stations. The RS-1 and RS-2 configurations can reuse relevant protocols.

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

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

[0356] Step 0: Atmospheric ducting occurs and the victim earth station detects a “tilted” long-range interference signature.

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

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

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

[0360] Step 2: Based on the 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 configuration of the satellite gateway. If RS-1 is not detected within the preset time window T2, it means that the earth station is not currently interfering with other earth stations. Then jump to Step 8, stop detecting RS-1, and restore the original configuration.

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

[0363] Step 5: The victim earth station starts transmission of RS-1 and detection of the interfering earth station RS-2.

[0364] Step 6: After receiving RS-1, the interfering earth station initiates a long-range interference avoidance plan (such as increasing the guard interval, reducing the transmit power, etc.); then sends RS-2 to test whether the long-range interference phenomenon of the victim earth station still exists.

[0365] Step 7-1: If the victim earth station does not detect RS-2 in Step 5;

[0366] 1) If the interference returns to normal levels, it indicates successful interference avoidance and the affected earth station stops RS-1 transmission;

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

[0368] Step 7-2: If the victim earth station can still detect RS-2 in Step 5, it means that there is still long-range interference from the earth station. At this time, the victim 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 long-range interference has been eliminated. The interfering earth station stops detecting RS-1 and restores 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, and the long-range interference avoidance plan is continued, returning to Step 6.

[0371] Optionally, for the signaling process Step 1, Step 2, and Step 4, there are the following descriptions:

[0372] In Step 1, RS-1 is used to notify the interfering earth station that it is interfering with the victim earth station and to estimate the number of UL resources affected by the interference. RS-2 is used by the interfering earth station to test whether the interference persists after implementing the interference mitigation plan. If the victim earth station waits longer than the preset time window T1, the long-range interference has not disappeared, and the service is urgent, the waiting period is terminated and other interference mitigation measures, such as satellite switching, are considered.

[0373] In Step 2, the interfering earth station needs to be configured and start detecting RS-1. There are two considerations:

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

[0375] 2) If the victim earth station is configured to transmit RS-1 first, the victim earth station may send RS-1 but the interfering earth station has not yet started receiving it, resulting in power waste at the victim earth station and abnormal interference avoidance process.

[0376] In Step 4, in order to avoid the situation where the interfering earth station is always uplinking with the satellite and thus cannot receive the RS-1 sent by the interfered earth station, the interfered earth station can send RS-1 only after the satellite gateway is configured. Otherwise, if the waiting time window is exceeded, the interference avoidance strategy is abandoned and other methods are used.

[0377] Optionally, the embodiment of the present disclosure is enhanced by adding a signaling interaction mechanism between the Aggressor and Victim earth stations and the satellite Gateway. The relevant configuration of the RS in Steps 1, 2, and 4 can reuse the existing protocol. The configuration of the RIM RS transmission position should be noted: in the terrestrial TDD communication system, the frame structure of the TD-LTE network is in the order of DL time slot, guard interval, and UL time slot, and the position of the base station transmitting the RS is fixed in the last X symbols before the DL transmission boundary; while in the satellite TDD communication system, taking the Iridium TDD frame structure as an example, its TDD frame structure is in the order of UL time slot, guard interval, and DL time slot, so the position of the earth station transmitting the RS should be in the last X symbols before the UL transmission boundary.

[0378] Optionally, in the embodiment of the present 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) After long-range interference is detected, the satellite gateway decides and configures the timing for the victim and interfering earth stations to send and monitor RS-1 or RS-2 signals based on prior information;

[0380] Interference detection starts only after the earth station is connected to the satellite. To save power, no detection is performed when no connection is established.

[0381] The interfering earth station needs to receive RS-1 to know that it is interfering. Therefore, the interfered 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 interfering earth station has a downlink time slot to receive RS-1.

[0382] When an interfering earth station experiences increased long-range interference, it may also believe that it is a victim earth station, but the actual situation is that it has received the RS-1 signal. Therefore, it is necessary for the satellite gateway to configure which potential interfering earth stations to start detecting RS-1.

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

[0384] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0385] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0386] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution 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 relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by 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 implementing the hardware circuit configuration 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. In addition, 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), a deep learning processing unit (DPU), etc.

[0387] Figure 7a is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure. As shown in Figure 7a, network device 7100 may include at least one of a transceiver module 7101 and a processing module 7102. In some embodiments, transceiver module 7101 is configured to send a report message to a satellite gateway, indicating that the first network device has received a RI.

[0388] Optionally, the transceiver module 7101 is configured to execute 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 are not described in detail here. Optionally, the processing module 7102 is configured to execute at least one of the other steps performed by the first network device 101 in any of the above methods, which are not described in detail here.

[0389] Figure 7b is a schematic diagram of the structure of a satellite gateway proposed in an embodiment of the present disclosure. As shown in Figure 7b, satellite gateway 7200 may include at least one of a transceiver module 7201 and a processing module 7202. In some embodiments, transceiver module 7201 receives report information sent by a first network device, where the report information indicates that the first network device has received an RI. Transceiver module 7201 is further configured to send second configuration information to at least one second network device, where the second configuration information is configured to configure a first RS and a second RS, and to instruct the second network device to begin monitoring the first RS. The first RS is configured to instruct the second network device to generate an RI for the first network device, and the second RS is configured to detect whether the first network device still has an RI after the second network device performs RI avoidance.

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

[0391] FIG7c is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure. As shown in FIG7c, the network device 7300 may include at least one of a transceiver module 7301 and a processing module 7302. In some embodiments, the transceiver module 7301 is configured to receive second configuration information sent by a satellite gateway, 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 monitoring the first RS, wherein the satellite gateway sends the second configuration information after receiving a report message, the report information being used to indicate that the first network device has received an RI; 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 an RI avoidance behavior; the transceiver module 7301 is further configured to monitor the first RS sent by the first network device according to the second configuration information.

[0392] Optionally, the transceiver module 7301 is configured to execute 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 are not described in detail here. Optionally, the processing module 7302 is configured to execute at least one of the other steps performed by the second network device 103 in any of the above methods, which are not described in detail here.

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

[0394] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0395] Figure 8a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of 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, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform 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-described method, and the processor 8101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

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

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

[0400] FIG8b is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8b, but the present disclosure is not limited thereto.

[0401] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0402] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may 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 exchange 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 various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0405] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute 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 is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0406] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0407] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods. Industrial Applicability

[0408] In a satellite communication system, a first network device can monitor whether it is affected by RI and promptly report it to a satellite gateway when it is affected by remote interference RI. The satellite gateway then sends second configuration information to a second network device, so that the second network device can monitor RS based on the second configuration information, facilitating adaptive determination or elimination of interference to improve system communication quality.

Claims

1. A Remote Interference Management (RIM) method, executed by a first network device, the method comprising: Sending reporting information to a satellite gateway, the reporting information being used to indicate that the first network device is subject to Remote Interference (RI).

2. The method according to claim 1, wherein The method further comprises: Receiving first configuration information sent by the satellite gateway, the first configuration information being used to configure a first Reference Signal (RS) and a second RS, and being used to instruct the first network device to start sending the first RS; wherein, the first RS is used to indicate that a second network device generates RI to the first network device, and the second RS is used to detect whether there is still RI at the first network device after the second network device performs RI avoidance behavior. Sending the first RS to the second network device according to the first configuration information. Listening for the second RS sent by the second network device according to the first configuration information.

3. The method according to claim 2, wherein The method further comprises: Listening for the first configuration information within a first time window T1.

4. The method according to claim 2, wherein When the first network device can receive the second RS, it keeps sending the first RS.

5. The method according to claim 2, wherein, The method further comprises: When the first network device does not receive the second RS, and when it is determined that the RI meets the conditions, it stops sending the first RS.

6. The method according to claim 2, wherein, The method further comprises: When the first network device does not receive the second RS, and when it is determined that the RI does not meet the conditions, it resends the reporting information to the satellite gateway.

7. The method according to any one of claims 1 to 6, wherein The first network device determines that there is RI when detecting interference noise conforming to set characteristics.

8. The method according to any one of claims 2 to 6, wherein The transmission time domain position of the first RS satisfies: in an uplink time domain unit, and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit; and / or, The transmission time domain position of the second RS satisfies: in an uplink time domain unit, and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit.

9. A RIM method, executed by a satellite gateway, the method comprising: Receiving reporting information sent by a first network device, the reporting information being used to indicate that the first network device is subject to RI. Sending 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 for the first RS, wherein, the first RS is used to indicate that the second network device generates RI to the first network device, and the second RS is used to detect whether there is still RI at the first network device after the second network device performs RI avoidance behavior.

10. The method according to claim 9, wherein, The method further comprises: Sending first configuration information to the first network device, the first configuration information being used to configure a first Reference Signal (RS) and a second RS, and being used to instruct the first network device to start sending the first RS.

11. The method according to claim 9, wherein The method further comprises: Receiving the reporting information resent by the first network device, wherein, the first network device resends the reporting information when it does not receive the second RS and the RI still does not meet the conditions.

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

13. The method according to any one of claims 9 to 11, wherein, the transmission time domain position of the first RS satisfies: in the uplink time domain unit and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit; and / or, the transmission time domain position of the second RS satisfies: in the uplink time domain unit and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit.

14. A RIM method, performed by a second network device, the method comprising: receiving second configuration information sent by a satellite gateway, 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 for the first RS, wherein the satellite gateway sends the second configuration information after receiving report information, the report information being used to indicate that the first network device is subject to RI; the first RS is used to indicate that the second network device generates RI for the first network device, and the second RS is used to detect whether there is still RI at the first network device after the second network device performs RI avoidance behavior; listening for the first RS sent by the first network device according to the second configuration information.

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

16. The method according to claim 15, wherein, The method further comprises: when the first RS is not received within the second time window T2, stopping listening for the first RS.

17. The method according to claim 15, wherein, The method further comprises: when the first RS is received within the second time window T2, performing RI avoidance behavior.

18. The method according to claim 17, wherein, The method further comprises: sending a second RS to the first network device according to the second configuration information, the second RS being used to detect whether there is still RI at the first network device after the second network device performs RI avoidance behavior.

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

20. The method according to any one of claims 14 to 19, wherein, when the second network device starts listening for the first RS, the second network device considers that the first network device has received the first configuration information sent by the satellite gateway; or, when the second network device starts listening for the first RS, the first network device has received the first configuration information, wherein the second network device does not generate RI for the first network device; or, when the second network device starts listening for the first RS, the first network device has not received the first configuration information or has not started sending the first RS; wherein 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.

21. The method according to any one of claims 14 to 19, wherein, The transmission time domain position of the first RS satisfies: in the uplink time domain unit and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit; and / or, The transmission time domain position of the second RS satisfies: in the uplink time domain unit and including several symbols before the boundary between the uplink time domain unit and the downlink time domain unit.

22. A RIM method, comprising: A first network device sends reporting information to a satellite gateway, and the reporting information is used to indicate that the first network device is affected by RI; After receiving the reporting information, the satellite gateway sends second configuration information to at least one second network device, where the second configuration information is used to configure a first RS and a second RS and is used to instruct the second network device to start listening for the first RS, where the first RS is used to indicate that the second network device generates RI for the first network device, and the second RS is used to detect whether there is still RI in the first network device after the second network device performs RI avoidance behavior; The second network device listens for the first RS sent by the first network device according to the second configuration information.

23. A network device, comprising: A transceiver module, configured to send reporting information to a satellite gateway, and the reporting information is used to indicate that a first network device is affected by RI.

24. A satellite gateway, comprising: A transceiver module, configured to receive reporting information sent by a first network device, and the reporting information is used to indicate that the first network device is affected by RI; The transceiver module is further configured to send second configuration information to at least one second network device, where the second configuration information is used to configure a first RS and a second RS and is used to instruct the second network device to start listening for the first RS, where the first RS is used to indicate that the second network device generates RI for the first network device, and the second RS is used to detect whether there is still RI in the first network device after the second network device performs RI avoidance behavior.

25. A network device, comprising: A transceiver module, configured to receive second configuration information sent by a satellite gateway, where the second configuration information is used to configure a first RS and a second RS and is used to instruct a second network device to start listening for the first RS, where the satellite gateway sends the second configuration information after receiving reporting information, and the reporting information is used to indicate that a first network device is affected by RI; where the first RS is used to indicate that the second network device generates RI for the first network device, and the second RS is used to detect whether there is still RI in the first network device after the second network device performs RI avoidance behavior; The transceiver module is further configured to listen for the first RS sent by the first network device according to the second configuration information.

26. A communication system, comprising: A first network device, a satellite gateway, and a second network device, where 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 according to any one of claims 14 to 21.

27. A communication device, comprising: One or more processors; Wherein, the communication device is used to implement the method described in 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 storing instructions, wherein, When the instructions run on a communication device, the communication device is caused to execute the method described in 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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