Remote interference management method and system based on user equipment, satellite equipment and base station

Abstract

The invention provides a remote interference management method and system based on user equipment, satellite equipment and a base station, and the method comprises the steps: demodulating a reference signal from interference through a configured reference signal when same-frequency interference exists between a ground network and a non-ground network, and obtaining a same-frequency interference source based on the currently demodulated reference signal; and the current interference condition and the same-frequency interference source are reported, so that the network can make corresponding adjustments including scheduling, configuration or resource management, and interference is avoided.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a remote interference management method and system based on user equipment, satellite equipment and base stations. Background Art

[0002] Terrestrial networks and non-terrestrial networks may use the same frequency band for communication. Therefore, there may be co-frequency interference between terrestrial networks and non-terrestrial networks. Such interference may be in the same direction or in different directions; therefore, it is necessary to identify the interference in the communication system and make corresponding adjustments based on the identified interference to avoid interference.

[0003] Patent document CN112956153A (application number: 201980071596.5) discloses a system, device, method and computer-readable medium for remote interference management (RIM) in a wireless network, including transmitting a RIM reference signal (RIM-RS) to help an interfered radio access network (RAN) node identify an interference source RAN node due to, for example, an atmospheric waveguide. The RIM-RS is also flexibly configured. Other embodiments are also described and / or protection is claimed. Summary of the invention

[0004] In view of the defects in the prior art, an object of the present invention is to provide a remote interference management method and system based on user equipment, satellite equipment and base station.

[0005] According to the present invention, a remote interference management method based on user equipment, satellite equipment and base station includes: when there is co-frequency interference between a ground network and a non-ground network, a reference signal is demodulated from the interference through a configured reference signal, and the source of the co-frequency interference is obtained based on the currently demodulated reference signal; the current interference situation and the source of the co-frequency interference are reported so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0006] Preferably, it includes:

[0007] When the downlink signal of the ground network base station interferes with the downlink user of the non-ground network, the non-ground network user equipment obtains the reference signal configuration of several ground network downlinks and demodulates the reference signal from the interference. The non-ground network user equipment obtains the source of the co-frequency interference according to the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The ground network base station and user equipment obtain the reference signal configuration of the non-ground network and monitor the communication of the non-ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0008] When the downlink signal of the non-ground network satellite interferes with the downlink user of the ground network, the ground network user equipment obtains several non-ground network downlink reference signal configurations and demodulates the reference signal from the interference. The ground network user equipment obtains the source of the co-frequency interference according to the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-ground network satellite equipment and user equipment obtain the reference signal configuration of the ground network and monitor the communication of the ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0009] When the uplink signal from the terrestrial network user equipment to the base station interferes with the uplink from the non-terrestrial network user equipment to the satellite, the non-terrestrial network satellite equipment obtains the reference signal configurations of several terrestrial network uplinks and demodulates the reference signal from the interference. The non-terrestrial network satellite equipment obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The terrestrial network base station and user equipment obtain the reference signal configuration of the non-terrestrial network and monitor the communication of the non-terrestrial network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0010] When the uplink signal from the non-terrestrial network user equipment to the satellite interferes with the uplink from the terrestrial network user equipment to the base station, the terrestrial network base station obtains several non-terrestrial network uplink reference signal configurations and demodulates the reference signal from the interference. The terrestrial network base station obtains the source of the co-frequency interference received based on the demodulated reference signal and reports the interference received so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-terrestrial network satellite equipment and user equipment obtain the reference signal configuration of the terrestrial network and monitor the communication of the terrestrial network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0011] When the downlink signal of the ground network base station interferes with the uplink of the non-ground network user equipment to the satellite, the non-ground network satellite equipment obtains the reference signal configuration of several ground network downlinks and demodulates the reference signal from the interference. The non-ground network satellite equipment obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference situation for the network to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The ground network base station and user equipment obtain the reference signal configuration of the non-ground network and monitor the communication of the non-ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0012] When the downlink signal of the non-ground network satellite equipment interferes with the uplink of the ground network user equipment to the base station, the ground network base station obtains several non-ground network downlink reference signal configurations and demodulates the reference signal from the interference. The ground network base station obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-ground network satellite equipment and user equipment obtain the reference signal configuration of the ground network and monitor the communication of the ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0013] When the uplink signal from the terrestrial network user equipment to the base station interferes with the downlink of the user equipment from the non-terrestrial network satellite equipment, the non-terrestrial network user equipment obtains the reference signal configuration of several terrestrial network uplinks and demodulates the reference signal from the interference. The non-terrestrial network satellite equipment obtains the source of the co-frequency interference it receives based on the demodulated reference signal and reports the interference it receives so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The terrestrial network base station and user equipment obtain the reference signal configuration of the non-terrestrial network and monitor the communication of the non-terrestrial network, thereby making corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0014] When the uplink signal from the non-ground network user equipment to the satellite interferes with the downlink from the ground network base station to the user equipment, the ground network user obtains several non-ground network uplink reference signal configurations and demodulates the reference signal from the interference. The ground network user equipment obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference situation for the network to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-ground network satellite equipment and user equipment obtain the reference signal configuration of the ground network and monitor the communication of the ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0015] Preferably, the reference signal includes: a synchronization signal SSB in 4G and / or 5G, a tracking reference signal TRS, a demodulation reference signal DM-RS, a reference signal CSI-RS for channel estimation, a reference signal CSI-IM for interference measurement, and a reference signal PTRS for phase tracking;

[0016] The reference signal is a public signal and / or a dedicated signal;

[0017] The common signal is a reference signal that can be acquired / identified / demodulated by base stations / user equipment in the ground network and satellites / aircraft / user equipment in the non-ground network. The reference signal usually carries an identity ID directly or indirectly. When the interfered object demodulates the reference signal from the interference signal, the interfered object can know the source of the interference and report the interference situation for the network to make corresponding adjustments including scheduling, configuration or resource management to avoid interference;

[0018] The dedicated signal is specifically used for a certain transmission / a certain link, including: uplink / downlink transmission between a certain base station in a terrestrial network and a certain user equipment and uplink / downlink transmission between a certain satellite in a non-terrestrial network and a certain user equipment.

[0019] Preferably, the reference signal further includes: a spatial interference management reference signal; the spatial interference management reference signal is a new reference signal introduced for terrestrial network / non-terrestrial network interference management; the resources occupied by the spatial interference management reference signal include: time domain resources, frequency domain resources and code domain / sequence resources;

[0020] In the time domain, the spatial interference management reference signal is transmitted periodically, semi-statically and / or dynamically; different spatial interference management reference signals are configured with different periods and / or time domain offsets;

[0021] In the frequency domain, the spatial interference management reference signal resources are determined by the subcarrier spacing and / or bandwidth and / or resource block / subcarrier position / index; the resources in the frequency domain determine the sequence length of the spatial interference management reference signal;

[0022] In the code domain, different spatial interference management reference signals use different sequences; the spatial interference management reference signals directly / indirectly carry certain information.

[0023] Preferably, according to the interference and interference situations, the spatial interference management reference signal is divided into two categories, including: one category is sent by the interference source, so that the interfered object and / or the network can detect the existence of interference, and the interfered object and / or the network can obtain the source of interference; the other category is sent by the interfered object, because the interference is usually mutual, and the spatial interference management reference signal sent by the interfered object allows the interference source and / or the network to know the existence of interference, and the interference source and / or the network to know the identity information of the interfered object and / or the interference situation.

[0024] Preferably, according to different communication scenarios, the space interference management reference signal is divided into two categories, including: one category is sent by the base station / user equipment of the ground network; the other category is sent by the satellite / aircraft / user equipment of the non-ground network; through these two categories of space interference management reference signals, the ground network and the non-ground network can obtain the interference situation between each other.

[0025] Preferably, according to the difference between uplink and downlink, the spatial interference management reference signals are divided into two categories, including: one category is sent in uplink transmission; the other category is sent in downlink transmission.

[0026] Preferably, the interference source actively sends a spatial interference management reference signal; and the interfered source sends a spatial interference management reference signal after detecting the existence of interference.

[0027] According to the present invention, a remote interference management system based on user equipment, satellite equipment and base stations includes: when there is co-channel interference between a ground network and a non-ground network, a reference signal is demodulated from the interference through a configured reference signal, and the source of the co-channel interference is obtained based on the currently demodulated reference signal; the current interference situation and the source of the co-channel interference are reported so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0028] Preferably, it includes:

[0029] When the downlink signal of the ground network base station interferes with the downlink user of the non-ground network, the non-ground network user equipment obtains the reference signal configuration of several ground network downlinks and demodulates the reference signal from the interference. The non-ground network user equipment obtains the source of the co-frequency interference according to the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The ground network base station and user equipment obtain the reference signal configuration of the non-ground network and monitor the communication of the non-ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0030] When the downlink signal of the non-ground network satellite interferes with the downlink user of the ground network, the ground network user equipment obtains several non-ground network downlink reference signal configurations and demodulates the reference signal from the interference. The ground network user equipment obtains the source of the co-frequency interference according to the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-ground network satellite equipment and user equipment obtain the reference signal configuration of the ground network and monitor the communication of the ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0031] When the uplink signal from the terrestrial network user equipment to the base station interferes with the uplink from the non-terrestrial network user equipment to the satellite, the non-terrestrial network satellite equipment obtains the reference signal configurations of several terrestrial network uplinks and demodulates the reference signal from the interference. The non-terrestrial network satellite equipment obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The terrestrial network base station and user equipment obtain the reference signal configuration of the non-terrestrial network and monitor the communication of the non-terrestrial network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0032] When the uplink signal from the non-terrestrial network user equipment to the satellite interferes with the uplink from the terrestrial network user equipment to the base station, the terrestrial network base station obtains several non-terrestrial network uplink reference signal configurations and demodulates the reference signal from the interference. The terrestrial network base station obtains the source of the co-frequency interference received based on the demodulated reference signal and reports the interference received so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-terrestrial network satellite equipment and user equipment obtain the reference signal configuration of the terrestrial network and monitor the communication of the terrestrial network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0033] When the downlink signal of the ground network base station interferes with the uplink of the non-ground network user equipment to the satellite, the non-ground network satellite equipment obtains the reference signal configuration of several ground network downlinks and demodulates the reference signal from the interference. The non-ground network satellite equipment obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference situation for the network to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The ground network base station and user equipment obtain the reference signal configuration of the non-ground network and monitor the communication of the non-ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0034] When the downlink signal of the non-ground network satellite equipment interferes with the uplink of the ground network user equipment to the base station, the ground network base station obtains several non-ground network downlink reference signal configurations and demodulates the reference signal from the interference. The ground network base station obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-ground network satellite equipment and user equipment obtain the reference signal configuration of the ground network and monitor the communication of the ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0035] When the uplink signal from the terrestrial network user equipment to the base station interferes with the downlink of the user equipment from the non-terrestrial network satellite equipment, the non-terrestrial network user equipment obtains the reference signal configuration of several terrestrial network uplinks and demodulates the reference signal from the interference. The non-terrestrial network satellite equipment obtains the source of the co-frequency interference it receives based on the demodulated reference signal and reports the interference it receives so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The terrestrial network base station and user equipment obtain the reference signal configuration of the non-terrestrial network and monitor the communication of the non-terrestrial network, thereby making corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0036] When the uplink signal from the non-terrestrial network user equipment to the satellite interferes with the downlink from the terrestrial network base station to the user equipment, the terrestrial network user obtains several non-terrestrial network uplink reference signal configurations and demodulates the reference signal from the interference. The terrestrial network user equipment obtains the source of the co-frequency interference according to the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-terrestrial network satellite equipment and user equipment obtain the reference signal configuration of the terrestrial network and monitor the communication of the terrestrial network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0037] The reference signals include: a synchronization signal SSB in 4G and / or 5G, a tracking reference signal TRS, a demodulation reference signal DM-RS, a reference signal CSI-RS for channel estimation, a reference signal CSI-IM for interference measurement, and a reference signal PTRS for phase tracking;

[0038] The reference signal is a public signal and / or a dedicated signal;

[0039] The common signal is a reference signal that can be acquired / identified / demodulated by base stations / user equipment in the ground network and satellites / aircraft / user equipment in the non-ground network. The reference signal usually carries an identity ID directly or indirectly. When the interfered object demodulates the reference signal from the interference signal, the interfered object can know the source of the interference and report the interference situation for the network to make corresponding adjustments including scheduling, configuration or resource management to avoid interference;

[0040] The dedicated signal is specifically used for a certain transmission / a certain link, including: uplink / downlink transmission between a certain base station in a terrestrial network and a certain user equipment and uplink / downlink transmission between a certain satellite in a non-terrestrial network and a certain user equipment;

[0041] The reference signal also includes: a spatial interference management reference signal; the spatial interference management reference signal is a new reference signal introduced for terrestrial network / non-terrestrial network interference management; the resources occupied by the spatial interference management reference signal include: time domain resources, frequency domain resources and code domain / sequence resources;

[0042] In the time domain, the spatial interference management reference signal is transmitted periodically, semi-statically and / or dynamically; different spatial interference management reference signals are configured with different periods and / or time domain offsets;

[0043] In the frequency domain, the spatial interference management reference signal resources are determined by the subcarrier spacing and / or bandwidth and / or resource block / subcarrier position / index; the resources in the frequency domain determine the sequence length of the spatial interference management reference signal;

[0044] In the code domain, different spatial interference management reference signals use different sequences; the spatial interference management reference signals directly / indirectly carry certain information;

[0045] According to the interference and interference situations, the spatial interference management reference signal is divided into two categories, including: one is sent by the interference source, so that the interfered object and / or the network detects the existence of interference, so that the interfered object and / or the network obtains the interference source; the other is sent by the interfered object, because the interference is usually mutual, the spatial interference management reference signal sent by the interfered object allows the interference source and / or the network to know the existence of interference, so that the interference source and / or the network can know the identity information of the interfered object and / or the interference situation;

[0046] According to different communication scenarios, the spatial interference management reference signals are divided into two categories, including: one is sent by a base station / user equipment of a terrestrial network; the other is sent by a satellite / aircraft / user equipment of a non-terrestrial network; through these two types of spatial interference management reference signals, the terrestrial network and the non-terrestrial network can obtain the interference situation between each other;

[0047] According to the difference between uplink and downlink, the spatial interference management reference signal is divided into two categories, including: one is sent in uplink transmission; the other is sent in downlink transmission;

[0048] The interference source actively sends a spatial interference management reference signal; the interfered source sends a spatial interference management reference signal after detecting the existence of interference.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] 1. The present invention can obtain the interference source based on the reference signal, so as to make further adjustments to avoid interference;

[0051] 2. The present invention takes all situations into consideration and is comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0053] Figure 1 Diagram of a typical scenario for a non-terrestrial network to provide access to a user device.

[0054] Figure 2 Diagram of a typical scenario for a non-terrestrial network to provide access to a user device.

[0055] Figure 3 A block diagram.

[0056] Figure 4 a- Figure 4 d is a schematic diagram of a remote interference management system based on user equipment, satellite equipment and base stations.

[0057] Figure 5 a- Figure 5 d is a schematic diagram of a remote interference management system based on user equipment, satellite equipment and base stations. DETAILED DESCRIPTION

[0058] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0059] Example 1

[0060] Non-terrestrial networks (NTNs) refer to networks or network terminals that use radio frequency resources on satellites (or UAS platforms); typical scenarios in which non-terrestrial networks provide access to user devices include: Figure 1 to Figure 2 As shown;

[0061] Non-terrestrial networks usually include the following components: One or more satellite gateways are used to connect non-terrestrial networks to public data networks. For example, a geostationary orbit satellite (GEO) is provided with signals by one or more satellite gateways deployed in the satellite's target coverage area. It can be assumed that user equipment in a single cell is served by only one satellite gateway. A non-terrestrial network satellite is served by only one or a few satellite gateways at a time. The system ensures continuity between services and feeders, with sufficient time for mobile anchoring and handover.

[0062] In addition, non-terrestrial networks typically include the following components: a feeder (or “feeder”) or radio link between a satellite gateway and a satellite (or unmanned aerial system (UAS) platform), and a service link or radio link between user equipment and a satellite (or UAS platform).

[0063] In addition, non-terrestrial networks typically include the following components: Satellites (or UAS platforms) that can implement transparent or regenerative, i.e., on-board processing (with onboard processing) payloads. A satellite (or UAS platform) can generate multiple beams within a service area defined by its field of view. The footprint of the beam is typically elliptical. The field of view of the satellite (or UAS platform) depends on its onboard antenna diagram and minimum elevation angle. For transparent payloads, radio frequency filtering, frequency conversion, and amplification can be applied. Therefore, the waveform signal of the payload repetition is unchanged. For on-board processing payloads, radio frequency filtering, frequency conversion, and amplification as well as demodulation / decoding, switching and / or routing, coding / modulation can be applied. This is effectively equivalent to having all or part of the base station functionality (e.g., gNB) on the satellite (or UAS platform).

[0064] In addition, non-terrestrial networks may also include the following elements: If there is a constellation of satellites, an inter-satellite link (ISL) may be used. This will require a regenerative payload on the satellite. ISLs can operate in the RF or optical bands.

[0065] In addition, non-terrestrial networks typically include the following elements: User equipment can be served by satellites (or UAS platforms) within the target service area. Satellites (or UAS platforms) can be of different types: low-orbit satellites (LEO satellites), medium-orbit satellites (MEO satellites), geosynchronous orbit satellites (GEO satellites), UAS platforms (including HAPS) and highly elliptical orbit satellites (HEO satellites).

[0066] A constellation of satellites in low earth orbit (LEO) and medium earth orbit (MEO) can be used to provide services in both the northern and southern hemispheres. In some cases, this constellation can even provide global coverage including polar regions. To achieve the latter, appropriate orbital inclination, sufficient beams, and inter-satellite links are required.

[0067] The non-terrestrial network provides access to user equipment in six reference scenarios, including: circular orbit and notional stationary platform, highest round trip delay (RTD) constraint, highest Doppler constraint, transparent and regenerative payloads, one case with and one without ISL (in the case of inter-satellite links, regenerative payload is mandatory), fixed or steerable beams resulting in beam coverage areas that are moving or fixed on the ground, respectively.

[0068] The present invention provides an example of NTN support of UE functions and parameter lists:

[0069] Figure 3 is a block diagram illustrating one implementation of one or more base stations (gNBs) and one or more user equipments (UEs) supporting a non-terrestrial network (NTN). One or more UEs 102 communicate with one or more gNBs 160 using one or more antennas 122a-n. For example, UE 102 transmits electromagnetic signals to gNB 160 and receives electromagnetic signals from gNB 160 using one or more antennas 122a-n. gNB 160 communicates with UE 102 using one or more antennas 180a-n.

[0070] UE 102 and gNB 160 may communicate using one or more channels 119, 121. For example, UE 102 may transmit information or data to gNB 160 using one or more uplink channels 121. Examples of uplink channels 121 include PUCCH (Physical Uplink Control Channel) and PUSCH (Physical Uplink Shared Channel), PRACH (Physical Random Access Channel), etc. For example, uplink channel 121 (e.g., PUSCH) may be used to transmit uplink data (i.e., transport blocks, MAC PDUs, and / or uplink shared channels (UL-SCH)).

[0071] In some examples, the UL data may include URLLC data. The URLLC data may be UL-SCH data. In some examples, a URLLC-PUSCH (i.e., a different physical uplink shared channel than PUSCH) may be defined for transmitting URLLC data. For simplicity, the term "PUSCH" may refer to any of the following: (1) PUSCH only (e.g., conventional PUSCH, non-URLLC-PUSCH, etc.), (2) PUSCH or URLLC-PUSCH, (3) PUSCH and URLLC-PUSCH, or (4) URLLC-PUSCH only (e.g., not conventional PUSCH).

[0072] In addition, for example, the uplink channel 121 can be used to transmit a hybrid automatic repeat request-acknowledgement (HARQ-ACK), channel state information (CSI) and / or a scheduling request (SR). The HARQ-ACK may include information for confirming or denying downlink data (i.e., a transport block, a media access control protocol data unit (MAC PDU) and / or a downlink shared channel (DL-SCH)). The CSI may include information indicating the quality of the downlink channel. The SR may be used to request an uplink shared channel (UL-SCH) resource for a new transmission and / or retransmission. For example, the SR may be used to request UL resources for transmitting UL data.

[0073] One or more gNBs 160 may also transmit information or data to one or more UEs 102 using one or more downlink channels 119. Examples of downlink channels 119 include PDCCH, PDSCH, etc. Other types of channels may be used. PDCCH may be used to transmit downlink control information (DCI).

[0074] Each UE 102 may include one or more transceivers 118, one or more demodulators 114, one or more decoders 108, one or more encoders 150, one or more modulators 154, a data buffer 104, and a UE operation module 124. For example, one or more receive and / or transmit paths may be implemented in the UE 102. For convenience, only a single transceiver 118, decoder 108, demodulator 114, encoder 150, and modulator 154 are illustrated in the UE 102, but multiple parallel elements (e.g., transceiver 118, decoder 108, demodulator 114, encoder 150, and modulator 154) may be implemented.

[0075] The transceiver 118 in the UE may include one or more receivers 120 and one or more transmitters 158. The one or more receivers 120 may receive signals from the gNB 160 using one or more antennas 122a-n. For example, the receiver 120 may receive and down-convert signals to generate one or more received signals 116. These one or more received signals 116 may be provided to the demodulator 114. The one or more transmitters 158 may send signals to the gNB 160 using one or more antennas 122a-n. For example, these one or more transmitters 158 may up-convert and send one or more modulated signals 156.

[0076] The demodulator 114 may demodulate one or more received signals 116 to generate one or more demodulated signals 112. These one or more demodulated signals 112 may be provided to the decoder 108. The UE 102 may decode the signal using the decoder 108. The decoder 108 may generate decoded signals 110, including UE decoded signals 106 (also referred to as first UE decoded signals 106). For example, the first UE decoded signal 106 may include received payload data, which may be stored in the data buffer 104. Another signal included in the decoded signal 110 (also referred to as the second UE decoded signal 110) may include overhead data and / or control data. For example, the second UE decoded signal 110 may provide data that may be used by the UE operation module 124 to perform one or more operations.

[0077] Typically, the UE operation module 124 can enable the UE 102 to communicate with one or more gNBs 160. The UE operation module 124 can include a UE scheduling module 126.

[0078] UE 102 may utilize UE scheduling module 126 to perform one or more downlink receptions and / or one or more uplink transmissions. Downlink receptions may include data reception, downlink control information reception, and / or downlink reference signal reception. Uplink transmissions may include data transmissions, uplink control information transmissions, and / or uplink reference signal transmissions.

[0079] The gNB in ​​the figure can be a base station located on the ground or a space-based one located on a satellite. The channel in the figure can be a link between a user equipment and a base station, and may also include a service link, a feeder link and / or an inter-satellite link.

[0080] In a wireless communication system, physical channels (eg, uplink physical channels and / or downlink physical channels) may be defined. Physical channels (eg, uplink physical channels and / or downlink physical channels) may be used to communicate (eg, transmit and / or receive) information delivered from a higher layer.

[0081] For example, in the uplink, a physical random access channel (PRACH) may be defined. In some methods, the PRACH (and / or random access procedure) may be used for an initial access connection establishment procedure, a handover procedure, a connection reestablishment, timing adjustment (e.g., synchronization of uplink transmissions, for uplink synchronization) and / or requesting uplink shared channel (UL-SCH) resources (e.g., uplink physical shared channel (PSCH) (e.g., PUSCH) resources).

[0082] In some examples, a physical uplink control channel (PUCCH) may be defined. The PUCCH may be used to transmit uplink control information (UCI). The UCI may include hybrid automatic repeat request-acknowledgement (HARQ-ACK), channel state information (CSI) and / or scheduling request (SR). HARQ-ACK may be used to indicate a correct authentication (ACK) or negative acknowledgement (NACK) of downlink data (e.g., a transport block, a media access control protocol data unit (MAC PDU) and / or a downlink shared channel (DL-SCH)). CSI may be used to indicate the state of a downlink channel (e.g., a downlink signal). SR may be used to request uplink data resources (e.g., a transport block, a MAC PDU and / or an uplink shared channel (UL-SCH)).

[0083] DL-SCH and / or UL-SCH may be transport channels used in the MAC layer. In the MAC layer, one or more transport blocks (TBs) and / or MAC PDUs may be defined as units of transport channels. A transport block may be defined as a unit of data transferred from the MAC layer to the physical layer. The MAC layer may transfer a transport block to the physical layer (e.g., the MAC layer transfers data as a transport block to the physical layer). In the physical layer, a transport block may be mapped to one or more codewords.

[0084] In the downlink, a physical downlink control channel (PDCCH) may be defined for transmitting downlink control information (DCI). In some cases, multiple DCI formats may be defined for transmitting DCI on the PDCCH. For example, fields may be defined in a DCI format and mapped to information bits (e.g., DCI bits).

[0085] In some cases, DCI format 1_0 for scheduling PDSCH in a cell may be defined as a downlink DCI format. As described in the present invention, DCI format 1_0 may be transmitted using one or more radio network temporary identifiers (e.g., cell RNTI(s)) (C-RNTI(s)), configured scheduling RNTI(s) (CS-RNTI(s)), system information RNTI(s) (SI-RNTI(s)) and / or random access RNTI(s) (RA-RNTI(s))). In some cases, DCI format 1_0 may be monitored (e.g., transmitted, mapped) in a common search space (CSS) and / or a user equipment specific search space (USS). In some cases, DCI format 1_0 may only be monitored (e.g., transmitted, mapped) in the CSS.

[0086] For example, the DCI contained in DCI format 1_0 may be a frequency domain resource allocation (e.g., for PDSCH). Additionally or alternatively, the DCI contained in DCI format 1_0 may be a time domain resource allocation (e.g., for PDSCH). Additionally or alternatively, the DCI contained in DCI format 1_0 may be a modulation and coding scheme (e.g., for PDSCH). Additionally or alternatively, the DCI contained in DCI format 1_0 may be a new data indicator. Additionally or alternatively, the DCI contained in DCI format 1_0 may be a HARQ process number. Additionally or alternatively, the DCI contained in DCI format 1_0 may be a transmit power control (TPC) command for scheduling a scheduled PUCCH. DCI format 1_0 and / or a modified / enhanced DCI format 1_0 may be used to schedule a PDSCH and / or downlink for a reduced-capability user equipment (UE) and its services.

[0087] Additionally or alternatively, DCI format 1_1 for scheduling a downlink data shared channel (PDSCH) in a cell may also be defined as a downlink DCI format. Additionally or alternatively, DCI format 1_1 may be transmitted using C-RNTI and / or CS-RNTI. Additionally or alternatively, DCI format 1_1 may be monitored (e.g., transmitted and / or mapped) in CSS and / or USS.

[0088] For example, the DCI contained in DCI format 1_1 may be a bandwidth part (BWP) indicator (e.g., for PDSCH). Additionally or alternatively, the DCI contained in DCI format 1_1 may be a frequency domain resource allocation (e.g., for PDSCH). Additionally or alternatively, the DCI contained in DCI format 1_1 may be a time domain resource allocation (e.g., for PDSCH). Additionally or alternatively, the DCI contained in DCI format 1_1 may be a modulation and coding scheme (e.g., for PDSCH). Additionally or alternatively, the DCI contained in DCI format 1_1 may be a new data indicator. Additionally or alternatively, the DCI contained in DCI format 1_1 may be a HARQ process number. Additionally or alternatively, the DCI contained in DCI format 1_1 may be a TPC command for scheduling a PUCCH. Additionally or alternatively, the DCI contained in DCI format 1_1 may be a CSI request (e.g., CSI report (e.g., aperiodic CSI report)) for requesting (e.g., triggering) CSI transmission. Additionally or alternatively, as described below, the DCI contained in DCI format 1_1 may be information indicating a DL semi-persistent scheduling (SPS) configuration index (e.g., an SPS configuration index). DCI format 1_1 and / or modified / enhanced DCI format 1_1 may be used to plan PDSCH and / or downlink channels for reduced capability UE(s) and its service(s).

[0089] Additionally or alternatively, a new DCI format (e.g., DCI format 1_2) for scheduling a downlink data shared channel (PDSCH) in a cell may be defined as a downlink DCI format. Additionally or alternatively, DCI format 1_2 may be transmitted using C-RNTI and / or CS-RNTI. Additionally or alternatively, DCI format 1_2 may be monitored (e.g., transmitted and / or mapped) in a CSS and / or USS.

[0090] For example, the DCI contained in DCI format 1_2 may be a bandwidth part (BWP) indicator (e.g., for PDSCH). In addition, the DCI contained in DCI format 1_2 may be defined as a DCI format for a downlink. Additionally or alternatively, C-RNTI and / or CS-RNTI may be used to transmit DCI format 1_2. DCI format 1_2 in CSS and / or USS may also be monitored (e.g., transmitted and / or mapped). In addition, the DCI contained in DCI format 1_2 may be a frequency domain resource allocation (e.g., for PDSCH) or a time domain resource allocation (e.g., for PDSCH). In addition, the DCI contained in DCI format 1_2 may be a modulation and coding scheme (e.g., for PDSCH) or a new data indicator. In addition, the DCI contained in DCI format 1_2 may be a HARQ process number or a TPC command for a scheduled PUCCH. In addition or alternatively, the DCI included in DCI format 1_2 may be a CSI request for requesting (e.g., triggering) CSI transmission (e.g., CSI report (e.g., non-periodic CSI report)). In addition, the DCI included in DCI format 1_2 may also be a configurable field, such as antenna port (0 to 2 bits), transmission configuration indication (0 to 3 bits), rate matching indication (0 to 2 bits), sounding reference signal (SRS) request (0 to 3 bits), PRB bundling size indication (0 to 1 bit), carrier indication (0 to 3 bits), CSI request (0 to 3 bits), ZP CSI-RS trigger (0 to 2 bits), Beta offset indication (0 to 2 bits), SRS resource indication (0 to 4 bits), repetition factor (0 to 2 bits) and / or priority indication (0 to 3 bits). In addition, as described below, the DCI included in DCI format 1_2 may be information for indicating a DL semi-persistent scheduling (SPS) configuration index (e.g., an SPS configuration index). DCI format 1_2 and / or modified / enhanced DCI format 1_2 may be used to schedule PDSCH and / or downlink for reduced capability UEs and their services.

[0091] In addition, a new DCI format (e.g., DCI format 1_3) may be defined for scheduling PDSCH in a cell as a downlink DCI format. Additionally or alternatively, C-RNTI and / or CS-RNTI may be used to transmit the new DCI format (e.g., DCI format 1_3). Additionally or alternatively, DCI format 1_3 may be monitored (e.g., transmitted and / or mapped) in the CSS and / or USS.

[0092] Additionally or alternatively, DCI format 0_0 for scheduling PUSCH in a cell may be defined as a DCI format for uplink. Additionally or alternatively, C-RNTI, CS-RNTI, and / or temporary C-RNTI may be used to transmit DCI format 0_0. Additionally or alternatively, DCI format 0_0 may be monitored (e.g., transmitted, mapped) in the CSS and / or USS. In some examples, DCI format 0_0 may only be monitored (e.g., transmitted, mapped) in the CSS.

[0093] For example, the DCI contained in DCI format 0_0 may be a frequency domain resource allocation (e.g., PUSCH). Additionally or alternatively, the DCI contained in DCI format 0_0 may be a time domain resource allocation (e.g., PUSCH). Additionally or alternatively, the DCI contained in DCI format 0_0 may be a modulation and coding scheme (e.g., PUSCH). Additionally or alternatively, the DCI contained in DCI format 0_0 may be a new data indicator. Additionally or alternatively, the DCI contained in DCI format 0_0 may be a HARQ process number. Additionally or alternatively, the DCI contained in DCI format 0_0 may be a redundancy version. Additionally or alternatively, the DCI contained in DCI format 0_0 may be a TPC command for a planned PUSCH. DCI format 0_0 and / or a modified / enhanced DCI format 0_0 may be used to schedule PUSCH and / or uplink for a UE with reduced functionality and its services.

[0094] In addition, a DCI format 0_1 ​​for scheduling PUSCH in a cell may also be defined as an uplink DCI format. DCI format 0_1 ​​may be transmitted using C-RNTI and / or CS-RNTI. DCI format 0_1 ​​may be monitored (eg, transmitted, mapped) in CSS and / or USS.

[0095] For example, the DCI included in the DCI format 0_1 ​​may be a BWP indicator (e.g., for PUSCH). Additionally or alternatively, the DCI included in the DCI format 0_1 ​​may be a frequency domain resource allocation (e.g., for PUSCH). Additionally or alternatively, the DCI included in the DCI format 0_1 ​​may be a time domain resource allocation (e.g., for PUSCH). Additionally or alternatively, the DCI included in the DCI format 0_1 ​​may be a modulation and coding scheme (e.g., for PUSCH). Additionally or alternatively, the DCI included in the DCI format 0_1 ​​may be a new data indicator. Additionally or alternatively, the DCI included in the DCI format 0_1 ​​may be a HARQ process number. Additionally or alternatively, the DCI included in the DCI format 0_1 ​​may be a TPC command for scheduling a PUSCH. Additionally or alternatively, the DCI included in the DCI format 0_1 ​​may be a CSI request for requesting a CSI report. In addition or alternatively, as described below, the DCI included in the DCI format 0_1 ​​may be information for indicating a configuration index of the configuration grant (e.g., a CG configuration index). The DCI format 0_1 ​​and / or modified / enhanced DCI format 0_1 ​​may be used to schedule PUSCH and / or uplink channels to provide services for low-capability UEs and their services.

[0096] In addition or in addition, DCI format 0_2 for scheduling PUSCH in a cell may be defined as an uplink DCI format. In addition or in addition, C-RNTI and / or CS-RNTI may be used to send DCI format 0_2. In addition or in addition, DCI format 0_2 may be monitored (e.g., transmitted, mapped) in CSS and / or USS.

[0097] For example, the DCI included in DCI format 0_2 may be a BWP indicator (e.g., for PUSCH). Additionally or additionally, the DCI included in DCI format 0_2 may be a frequency domain resource allocation (e.g., for PUSCH). Additionally or additionally, the DCI included in DCI format 0_2 may be a time domain resource allocation (e.g., for PUSCH). Additionally or additionally, the DCI included in DCI format 0_2 may be a modulation and coding scheme (e.g., for PUSCH). Additionally or additionally, the DCI included in DCI format 0_2 may be a new data indicator. Additionally or additionally, the DCI included in DCI format 0_2 may be a HARQ process number. Additionally or additionally, the DCI included in DCI format 0_2 may be a TPC command for a scheduled PUSCH. Additionally or additionally, the DCI included in DCI format 0_2 may be a CSI request for requesting a CSI report. In addition or in addition, the DCI included in DCI format 0_2 may be a configurable field, such as antenna port [0 to 2 bits], transmission configuration indication [0 to 3 bits], rate matching indication [0 to 2 bits], SRS request [0 to 3 bits], PRB bundling size indication [0 to 1 bit], carrier indication [0 to 3 bits], CSI request [0 to 3 bits], ZP CSI-RS trigger [0 to 2 bits], Beta offset indication [0 to 2 bits], SRS resource indication [0 to 4 bits], repetition factor [0 to 2 bits] and / or priority indication [0 to 3 bits]. In addition or in addition, as described below, the DCI included in DCI format 0_2 may be information for indicating a configuration index (e.g., a CG configuration index) of a configured grant. DCI format 0_2 and / or modified / enhanced DCI format 0_2 may be used to schedule PUSCH and / or uplink channels for UEs with reduced capabilities and their services.

[0098] Additionally or alternatively, a new DCI format (e.g., DCI format 0_3) for scheduling PUSCH in a cell may be defined as the DCI format for the uplink. Additionally or alternatively, DCI format 0_3 may be transmitted using C-RNTI and / or CS-RNTI. Additionally or alternatively, DCI format 0_3 may be monitored (e.g., transmitted, mapped) in CSS and / or USS.

[0099] Additionally or alternatively, upon receiving DCI format 1_0 and / or DCI format 1_1 and / or DCI format 1_2 and / or DCI format 1_3 (e.g., based on detecting DCI format 1_0 and / or DCI format 1_1 and / or DCI format 1_2 and / or DCI format 1_3), UE 102 may perform PDSCH reception. Additionally or alternatively, upon receiving DCI format 0_0 and / or DCI format 0_1 ​​and / or DCI format 0_2 and / or DCI format 0_3 (e.g., based on detecting DCI format 0_0 and / or DCI format 0_1 ​​and / or DCI format 0_2 and / or DCI format 0_3), UE 102 may perform PUSCH transmission.

[0100] In some examples, as described above, the RNTI (e.g., radio network temporary identifier) ​​assigned to UE 102 can be used for transmission of DCI (e.g., DCI format, DL control channel (e.g., PDCCH)). For example, gNB 160 can transmit information for configuring (e.g., allocating) RNTI(S) to UE 102 by using an RRC message (e.g.,

[0101] For example, a cyclic redundancy check (CRC) check bit (may be referred to as CRC for short) may be generated based on the DCI and appended to the DCI, and then after appending, the RNTI(s) may scramble the CRC check bits. The UE 102 may attempt to decode (e.g., blindly decode, monitor, detect) the DCI appended after scrambling by the RNTI(s). For example, the UE 102 may detect a downlink control channel (e.g., PDCCH, DCI, DCI format) based on blind decoding. For example, the UE 102 may decode the downlink control channel using the CRC scrambled by the RNTI. In other words, the UE 102 may monitor the downlink control channel using the RNTI. For example, the UE 102 may detect the DCI format using the RNTI.

[0102] In some examples, RNTI(s) may include C-RNTI (cell RNTI), CS-RNTI (configuration scheduling C-RNTI), SI-RNTI (system information RNTI), RA-RNTI (random access-RNTI) and / or temporary C-RNTI. For example, C-RNTI(s) may be a unique identifier for identifying an RRC connection and / or scheduling. In addition, CS-RNTI(s) may be a unique identifier for scheduling based on configuration grant. In addition, SI-RNTI may be used to identify system information (e.g., SI message) mapped to BCCH and dynamically transmitted on DL-SCH. In addition, SI-RNTI may be used to broadcast SI. In addition, RA-RNTI may be an identifier for a random access procedure (e.g., Msg.2 transmission). In addition, a temporary C-RNTI may be used for a random access procedure (e.g., scheduling Msg.3 (re) transmission (e.g., Msg.3 PUSCH (re) transmission)).

[0103] In addition or alternatively, a new RNTI (e.g., NTN-RNTI) may be introduced for use with NTN and its services. For example, upon receiving DCI format 1_0 and / or DCI format 1_1 and / or DCI format 1_2 and / or DCI format 1_3 scrambled using NTN-RNTI (e.g., based on detection of DCI format 1_0 and / or DCI format 1_1 and / or DCI format 1_2 and / or DCI format 1_3), UE 102 may perform PDSCH reception for NTN transport services. In addition or alternatively, if DCI format 0_0 and / or DCI format 0_1 ​​and / or DCI format 0_2 and / or DCI format 0_3 using NTN-RNTI scrambling is received (for example, based on the detection of DCI format 0_0 and / or DCI format 0_1 ​​and / or DCI format 0_2 and / or DCI format 0_3), UE 102 can perform PUSCH transmission for NTN transmission service.

[0104] In addition or alternatively, different RNTIs may be introduced for UL and DL. For example, a new RNTI (e.g., NTN-UL-RNTI) may be introduced for NTN UEs and their UL transmission services, while a new RNTI (e.g., NTN-DL-RNTI) may be introduced for NTN UEs and their DL transmission services. If DCI format 1_0 and / or DCI format 1_1 and / or DCI format 1_2 and / or DCI format 1_3 encrypted using NTN-DL-RNTI is received (e.g., based on detection of DCI format 1_0 and / or DCI format 1_1 and / or DCI format 1_2 and / or DCI format 1_3), UE 102 may perform PDSCH reception for NTN transmission services. Additionally or alternatively, if DCI format 0_0 and / or DCI format 0_1 ​​and / or DCI format 0_2 and / or DCI format 0_3 encrypted using NTN-UP-RNTI is received (e.g., based on detection of DCI format 0_0 and / or DCI format 0_1 ​​and / or DCI format 0_2 and / or DCI format 0_3), UE 102 may perform PUSCH transmission for NTN transport service.

[0105] In addition or alternatively, a physical downlink shared channel (PDSCH) and a physical uplink shared channel (PUSCH) may be defined. For example, if PDSCH (e.g., PDSCH resources) are scheduled using a DCI format, UE 102 may receive downlink data on the scheduled PDSCH (e.g., PDSCH resources). In addition or alternatively, if PUSCH (e.g., PUSCH resources) are scheduled using a DCI format, UE 102 may transmit uplink data on the scheduled PUSCH (e.g., PUSCH resources). For example, PDSCH may be used to transmit downlink data (e.g., DL-SCH (S), downlink transport block (S)). In addition or alternatively, PUSCH may be used to transmit uplink data (e.g., UL-SCH (S), uplink transport block (S)).

[0106] In some examples, the PDSCH and / or the PUSCH may be used to transmit information of a higher layer (e.g., a radio resource control (RRC) layer and / or a MAC layer). For example, an RRC message (e.g., an RRC signal) may be transmitted using the PDSCH (e.g., from the gNB 160 to the UE 102) and / or the PUSCH (e.g., from the UE 102 to the gNB 160). In addition or alternatively, a MAC control element (MAC CE) may be transmitted using the PDSCH (e.g., from the gNB 160 to the UE 102) and / or the PUSCH (e.g., from the UE 102 to the gNB 160). In some examples, the RRC message and / or the MAC CE may be referred to as a higher layer signal.

[0107] In some methods, a physical broadcast channel (PBCH) may be defined. For example, the PBCH may be used to broadcast a master information block (MIB). In some examples, the system information may be divided into the MIB and some system information blocks (SIBs). For example, the MIB may be used to carry minimum system information. Additionally or alternatively, the SIB may be used to carry system information messages.

[0108] In the downlink, a synchronization signal (SS) may be defined. The SS may be used to obtain time and / or frequency synchronization with a cell. Additionally or alternatively, the SS may be used to detect the physical layer cell ID of a cell.

[0109] In uplink wireless communication, an uplink reference signal (RS) may be used as an uplink physical signal. Additionally or alternatively, in downlink wireless communication, a DL RS may be used as a downlink physical signal. In some examples, the uplink physical signal and / or the downlink physical signal may not be used to transmit information from a higher layer, but may be used by the physical layer.

[0110] In some implementations, the downlink physical channel and / or downlink physical signal may be assumed to be included in a downlink signal (e.g., a DL signal) to simplify the description. Additionally or alternatively, in some implementations, the uplink physical channel and / or uplink physical signal may be assumed to be included in an uplink signal (i.e., a UL signal) to simplify the description.

[0111] According to the present invention, a remote interference management method based on user equipment, satellite equipment and base station includes: when there is co-frequency interference between a ground network and a non-ground network, a reference signal is demodulated from the interference through a configured reference signal, and the source of the co-frequency interference is obtained based on the currently demodulated reference signal; the current interference situation and the source of the co-frequency interference are reported so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

[0112] Terrestrial networks (TN) and non-terrestrial networks (NTN) may use the same frequency band for communication. Therefore, there may be co-frequency interference between terrestrial networks and non-terrestrial networks. Such interference may be in the same direction or in different directions, such as Figure 4 a to Figure 4 d and Figure 5 a to Figure 5 As shown in d.

[0113] The downlink signal of the ground network base station may interfere with the downlink users of the non-ground network. If the non-ground network user equipment obtains the reference signal configuration of several ground network downlinks and demodulates a reference signal from the interference, the non-ground network user equipment can know the source of the co-frequency interference it is suffering from and report the interference situation for the network to make corresponding scheduling or configuration or resource management to avoid interference. The ground network base station and user equipment may also obtain the reference signal configuration of the non-ground network and monitor the communication of the non-ground network, so as to make corresponding scheduling or configuration or resource management to avoid interference.

[0114] The downlink signal of non-terrestrial network satellites may interfere with the downlink users of terrestrial networks. If the terrestrial network user equipment obtains the reference signal configuration of several non-terrestrial network downlinks and demodulates a reference signal from the interference, the terrestrial network user equipment can know the source of the co-channel interference it suffers and report the interference situation for the network to make corresponding scheduling or configuration or resource management to avoid interference. Non-terrestrial network satellite equipment and user equipment may also obtain the reference signal configuration of the terrestrial network and monitor the communication of the terrestrial network, so as to make corresponding scheduling or configuration or resource management to avoid interference.

[0115] The uplink signal from the terrestrial network user equipment to the base station may interfere with the uplink from the non-terrestrial network user equipment to the satellite. If the non-terrestrial network satellite equipment obtains the reference signal configuration of several terrestrial network uplinks and demodulates a reference signal from the interference, the non-terrestrial network satellite equipment can know the source of the co-frequency interference it suffers and report the interference situation for the network to make corresponding scheduling or configuration or resource management to avoid interference. The terrestrial network base station and user equipment may also obtain the reference signal configuration of the non-terrestrial network and monitor the communication of the non-terrestrial network, so as to make corresponding scheduling or configuration or resource management to avoid interference.

[0116] The uplink signal from non-terrestrial network user equipment to the satellite may interfere with the uplink from terrestrial network user equipment to the base station. If the terrestrial network base station obtains several non-terrestrial network uplink reference signal configurations and demodulates a reference signal from the interference, the terrestrial network base station can know the source of the co-frequency interference it suffers and report the interference situation for the network to make corresponding scheduling or configuration or resource management to avoid interference. Non-terrestrial network satellite equipment and user equipment may also obtain the reference signal configuration of the terrestrial network and monitor the communication of the terrestrial network, so as to make corresponding scheduling or configuration or resource management to avoid interference.

[0117] The downlink signal of the ground network base station may interfere with the uplink from the non-ground network user equipment to the satellite. If the non-ground network satellite equipment obtains the reference signal configuration of several ground network downlinks and demodulates a reference signal from the interference, the non-ground network satellite equipment can know the source of the co-frequency interference it is suffering from and report the interference situation for the network to make corresponding scheduling or configuration or resource management to avoid interference. The ground network base station and user equipment may also obtain the reference signal configuration of the non-ground network and monitor the communication of the non-ground network, so as to make corresponding scheduling or configuration or resource management to avoid interference.

[0118] The downlink signal of non-terrestrial network satellite equipment may interfere with the uplink from terrestrial network user equipment to base stations. If the terrestrial network base station obtains the reference signal configuration of several non-terrestrial network downlinks and demodulates a reference signal from the interference, the terrestrial network base station can know the source of the co-frequency interference it suffers and report the interference situation for the network to make corresponding scheduling or configuration or resource management to avoid interference. Non-terrestrial network satellite equipment and user equipment may also obtain the reference signal configuration of the terrestrial network and monitor the communication of the terrestrial network, so as to make corresponding scheduling or configuration or resource management to avoid interference.

[0119] The uplink signal from the terrestrial network user equipment to the base station may interfere with the downlink of the user equipment from the non-terrestrial network satellite equipment. If the non-terrestrial network user equipment obtains the reference signal configuration of several terrestrial network uplinks and demodulates a reference signal from the interference, the non-terrestrial network satellite equipment can know the source of the co-frequency interference it is experiencing and report the interference situation for the network to make corresponding scheduling or configuration or resource management to avoid interference. The terrestrial network base station and user equipment may also obtain the reference signal configuration of the non-terrestrial network and monitor the communication of the non-terrestrial network, so as to make corresponding scheduling or configuration or resource management to avoid interference.

[0120] The uplink signal from non-terrestrial network user equipment to the satellite may interfere with the downlink from the terrestrial network base station to the user equipment. If the terrestrial network user obtains several non-terrestrial network uplink reference signal configurations and demodulates a reference signal from the interference, the terrestrial network user equipment can know the source of the co-channel interference it is experiencing and report the interference situation for the network to make corresponding scheduling or configuration or resource management to avoid interference. Non-terrestrial network satellite equipment and user equipment may also obtain the reference signal configuration of the terrestrial network and monitor the communication of the terrestrial network, so as to make corresponding scheduling or configuration or resource management to avoid interference.

[0121] The above-mentioned reference signal may be a reference signal already existing in the current system, such as a synchronization signal (SSB) in 4G and / or 5G, a tracking reference signal (TRS), a demodulation reference signal (DM-RS), a reference signal for channel estimation (CSI-RS), a reference signal for interference measurement (CSI-IM), a reference signal for phase tracking (PTRS), etc. The above-mentioned reference signal may be a public signal, that is, a reference signal that can be acquired / identified / demodulated by a base station / user equipment in a terrestrial network and a satellite / aircraft / user equipment in a non-terrestrial network. The reference signal usually carries an identity (ID) directly or indirectly. When the interfered object (base station / user equipment / satellite / aircraft) demodulates the reference signal from the interference signal, the interfered object can know which base station / user equipment / satellite / aircraft the interference comes from, and can report the interference situation for the network to make corresponding scheduling or configuration or resource management to avoid interference. The above-mentioned reference signal may also be a dedicated signal, which is specifically used for a certain transmission / a certain link, such as uplink / downlink transmission between a base station in a ground network and a user equipment, uplink / downlink transmission between a satellite in a non-ground network and a user equipment, etc. A base station / user equipment / satellite / aircraft may not know the reference signal configured by another base station / user equipment / satellite / aircraft. The reference signal configured by the interference source (base station / user equipment / satellite / aircraft) that a base station / user equipment / satellite / aircraft may encounter may be informed by signaling (such as various signalings of layer 3 / 2 / 1). When the base station / user equipment / satellite / aircraft demodulates the reference signal configured by the interference source (base station / user equipment / satellite / aircraft) from the interference signal, the base station / user equipment / satellite / aircraft can know which base station / user equipment / satellite / aircraft the interference comes from, and can report the interference situation for the network to make corresponding scheduling or configuration or resource management to avoid interference.

[0122] The above-mentioned reference signal may also be a new reference signal specially introduced for terrestrial network / non-terrestrial network interference management. Without loss of generality, the present invention names the newly introduced reference signal as space interference management reference signal (SIM-RS). The resources occupied by the space interference management reference signal include time domain resources, frequency domain resources, code domain / sequence resources, etc. In the time domain, the space interference management reference signal may be transmitted periodically, semi-statically (with layer 1 / 2 signaling activation / deactivation) and / or dynamically. Different space interference management reference signals may be configured with different periods and / or time domain offsets. In the frequency domain, the space interference management reference signal resources are determined by subcarrier spacing and / or bandwidth (number of resource blocks) and / or resource block / subcarrier position / index, etc. The resources in the frequency domain may determine the sequence length of the space interference management reference signal, and vice versa. In the code domain, different space interference management reference signals may use different sequences. The space interference management reference signal may directly / indirectly carry certain information. For example, the identity information of the interference source / interferenced source and / or the interference situation (such as interference intensity / position / interfered time slot / resource block / OFDM symbol, etc.) can be determined through the index / offset / value of the time domain resource / frequency domain resource / sequence.

[0123] According to the interference and interference situations, the space interference management reference signal can be divided into two categories. One category is sent by the interference source (base station / user equipment / satellite / aircraft), so that the interfered object and / or the network can detect the existence of interference, and also allow the interfered object and / or the network to obtain the source of interference (interference source identity information). The other category is sent by the interfered object (base station / user equipment / satellite / aircraft). Because the interference is usually mutual, the space interference management reference signal sent by the interfered object can let the interference source and / or the network know the existence of interference, and also let the interference source and / or the network know the identity information of the interfered object and / or the interference situation.

[0124] Depending on the communication scenario, there are two types of spatial interference management reference signals. One type is sent by base stations / user equipment of terrestrial networks. The other type is sent by satellites / aircraft / user equipment of non-terrestrial networks. These two types of spatial interference management reference signals allow terrestrial networks and non-terrestrial networks to obtain the interference situation between each other.

[0125] According to the difference between uplink and downlink, spatial interference management reference signals can be divided into two categories: one is sent in uplink transmission, and the other is sent in downlink transmission.

[0126] The above categories of spatial interference management reference signals may be combined arbitrarily.

[0127] The interference source (base station / user equipment / satellite / aircraft) can actively send a spatial interference management reference signal. For example, in an area / period of potential co-channel interference, the interference source (base station / user equipment / satellite / aircraft) can actively send a spatial interference management reference signal, so that the interfered object and / or the network can detect the existence of interference, and also allow the interfered object and / or the network to obtain the source of interference (interference source identity information).

[0128] After the interfered source (base station / user equipment / satellite / aircraft) detects the existence of interference, it can send a spatial interference management reference signal. For example, after the interfered source (base station / user equipment / satellite / aircraft) detects the existence of interference, it can send a spatial interference management reference signal, because interference is usually mutual, and the spatial interference management reference signal sent by the interfered object can let the interferer and / or the network know the existence of interference, and can also let the interferer and / or the network know the identity information of the interfered object and / or the interference situation.

[0129] The interference source (base station / user equipment / satellite / aircraft) can send a spatial interference management reference signal after detecting the spatial interference management reference signal sent by the interfered object. The spatial interference management reference signal sent by the interference source (base station / user equipment / satellite / aircraft) can allow the interfered object and / or the network to detect the existence of the interference, and can also allow the interfered object and / or the network to obtain the source of the interference (interference source identity information), and can also let the interfered object and / or the network know that the interference source has realized the occurrence of its interference and / or the interference avoidance / elimination strategy adopted.

[0130] The interfered object (base station / user equipment / satellite / aircraft) can send a space interference management reference signal after detecting the space interference management reference signal sent by the interference source. The space interference management reference signal sent by the interfered object (base station / user equipment / satellite / aircraft) can allow the interference source and / or the network to detect the existence of the interference, and can also allow the interfered object and / or the network to obtain the source of interference (interference source identity information), and can also let the interference source and / or the network know the effect of the current interference avoidance / elimination strategy or other information.

[0131] Spatial interference management can be centralized, for example, the interfered object (base station / user equipment / satellite / aircraft) and / or the interference source (base station / user equipment / satellite / aircraft) can be centrally scheduled and managed by the network and / or the Operation Administration and Maintenance (OAM) system to avoid interference and / or reduce interference. For example, when the interfered object (base station / user equipment / satellite / aircraft) detects the spatial interference management reference signal sent by the interference source, the interfered object can know which base station / user equipment / satellite / aircraft the interference comes from, and can report the interference to the Operation Administration and Maintenance (OAM) system for OAM to make corresponding scheduling or configuration or resource management to avoid interference. When an interference source (base station / user equipment / satellite / aircraft) detects the space interference management reference signal sent by the interfered object, the interference source can know which base station / user equipment / satellite / aircraft receives its interference, and can report the interference situation to the Operation Administration and Maintenance (OAM) system for OAM to make corresponding scheduling, configuration or resource management to avoid interference.

[0132] Spatial interference management can be distributed, for example, the interfered object (base station / user equipment / satellite / aircraft) and / or the interference source (base station / user equipment / satellite / aircraft) can adjust itself to avoid interference and / or reduce interference after detecting the existence of interference. For example, when the interfered object (base station / user equipment / satellite / aircraft) detects the spatial interference management reference signal sent by the interference source, the interfered object can interrupt the corresponding communication service, or adjust the receiving strategy and / or mode, such as adjusting the receiving beam direction, adjusting the time domain / frequency domain / space domain resources of the received data / signaling. When the interference source (base station / user equipment / satellite / aircraft) detects the spatial interference management reference signal sent by the interfered object, the interference source can interrupt the corresponding communication service, or adjust the transmission strategy and / or mode, such as adjusting the transmission beam direction, adjusting the transmission power, and adjusting the time domain / frequency domain / space domain resources of the received data / signaling.

[0133] The remote interference management system based on user equipment, satellite equipment and base station provided by the present invention can be implemented by the steps and procedures in the remote interference management method based on user equipment, satellite equipment and base station provided by the present invention. Those skilled in the art can understand the remote interference management method based on user equipment, satellite equipment and base station as a preferred example of the remote interference management system based on user equipment, satellite equipment and base station.

[0134] Those skilled in the art know that, in addition to realizing the system and its various devices, modules, and units provided by the present invention in a purely computer-readable program code, it is entirely possible to realize the same functions in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered as a hardware component, and the devices, modules, and units included therein for realizing various functions can also be regarded as structures within the hardware component; the devices, modules, and units for realizing various functions can also be regarded as both software modules for realizing the method and structures within the hardware component.

[0135] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A remote interference management method based on user equipment, satellite equipment and base station, characterized in that: include: When there is co-channel interference between the terrestrial network and the non-terrestrial network, the reference signal is demodulated from the interference through the configured reference signal, and the source of the co-channel interference is obtained based on the currently demodulated reference signal; the current interference situation and the source of the co-channel interference are reported so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

2. The remote interference management method based on user equipment, satellite equipment and base station according to claim 1, characterized in that: include: When the downlink signal of the ground network base station interferes with the downlink user of the non-ground network, the non-ground network user equipment obtains the reference signal configuration of several ground network downlinks and demodulates the reference signal from the interference. The non-ground network user equipment obtains the source of the co-frequency interference according to the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The ground network base station and user equipment obtain the reference signal configuration of the non-ground network and monitor the communication of the non-ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the downlink signal of the non-ground network satellite interferes with the downlink user of the ground network, the ground network user equipment obtains several non-ground network downlink reference signal configurations and demodulates the reference signal from the interference. The ground network user equipment obtains the source of the co-frequency interference according to the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-ground network satellite equipment and user equipment obtain the reference signal configuration of the ground network and monitor the communication of the ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the uplink signal from the terrestrial network user equipment to the base station interferes with the uplink from the non-terrestrial network user equipment to the satellite, the non-terrestrial network satellite equipment obtains the reference signal configurations of several terrestrial network uplinks and demodulates the reference signal from the interference. The non-terrestrial network satellite equipment obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The terrestrial network base station and user equipment obtain the reference signal configuration of the non-terrestrial network and monitor the communication of the non-terrestrial network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the uplink signal from the non-terrestrial network user equipment to the satellite interferes with the uplink from the terrestrial network user equipment to the base station, the terrestrial network base station obtains several non-terrestrial network uplink reference signal configurations and demodulates the reference signal from the interference. The terrestrial network base station obtains the source of the co-frequency interference received based on the demodulated reference signal and reports the interference received so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-terrestrial network satellite equipment and user equipment obtain the reference signal configuration of the terrestrial network and monitor the communication of the terrestrial network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the downlink signal of the ground network base station interferes with the uplink of the non-ground network user equipment to the satellite, the non-ground network satellite equipment obtains the reference signal configuration of several ground network downlinks and demodulates the reference signal from the interference. The non-ground network satellite equipment obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference situation for the network to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The ground network base station and user equipment obtain the reference signal configuration of the non-ground network and monitor the communication of the non-ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the downlink signal of the non-ground network satellite equipment interferes with the uplink of the ground network user equipment to the base station, the ground network base station obtains several non-ground network downlink reference signal configurations and demodulates the reference signal from the interference. The ground network base station obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-ground network satellite equipment and user equipment obtain the reference signal configuration of the ground network and monitor the communication of the ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the uplink signal from the terrestrial network user equipment to the base station interferes with the downlink of the user equipment from the non-terrestrial network satellite equipment, the non-terrestrial network user equipment obtains the reference signal configuration of several terrestrial network uplinks and demodulates the reference signal from the interference. The non-terrestrial network satellite equipment obtains the source of the co-frequency interference it receives based on the demodulated reference signal and reports the interference it receives so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The terrestrial network base station and user equipment obtain the reference signal configuration of the non-terrestrial network and monitor the communication of the non-terrestrial network, thereby making corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the uplink signal from the non-ground network user equipment to the satellite interferes with the downlink from the ground network base station to the user equipment, the ground network user obtains several non-ground network uplink reference signal configurations and demodulates the reference signal from the interference. The ground network user equipment obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference situation for the network to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-ground network satellite equipment and user equipment obtain the reference signal configuration of the ground network and monitor the communication of the ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

3. The remote interference management method based on user equipment, satellite equipment and base station according to claim 1, characterized in that: The reference signals include: a synchronization signal SSB in 4G and / or 5G, a tracking reference signal TRS, a demodulation reference signal DM-RS, a reference signal CSI-RS for channel estimation, a reference signal CSI-IM for interference measurement, and a reference signal PTRS for phase tracking; The reference signal is a public signal and / or a dedicated signal; The common signal is a reference signal that can be acquired / identified / demodulated by base stations / user equipment in the ground network and satellites / aircraft / user equipment in the non-ground network. The reference signal usually carries an identity ID directly or indirectly. When the interfered object demodulates the reference signal from the interference signal, the interfered object can know the source of the interference and report the interference situation for the network to make corresponding adjustments including scheduling, configuration or resource management to avoid interference; The dedicated signal is specifically used for a certain transmission / a certain link, including: uplink / downlink transmission between a certain base station in a terrestrial network and a certain user equipment and uplink / downlink transmission between a certain satellite in a non-terrestrial network and a certain user equipment.

4. The remote interference management method based on user equipment, satellite equipment and base station according to claim 3 is characterized in that: The reference signal also includes: a spatial interference management reference signal; the spatial interference management reference signal is a new reference signal introduced for terrestrial network / non-terrestrial network interference management; the resources occupied by the spatial interference management reference signal include: time domain resources, frequency domain resources and code domain / sequence resources; In the time domain, the spatial interference management reference signal is transmitted periodically, semi-statically and / or dynamically; different spatial interference management reference signals are configured with different periods and / or time domain offsets; In the frequency domain, the spatial interference management reference signal resources are determined by the subcarrier spacing and / or bandwidth and / or resource block / subcarrier position / index; the resources in the frequency domain determine the sequence length of the spatial interference management reference signal; In the code domain, different spatial interference management reference signals use different sequences; the spatial interference management reference signals directly / indirectly carry certain information.

5. The remote interference management method based on user equipment, satellite equipment and base station according to claim 4, characterized in that: According to the interference and interference situations, the spatial interference management reference signal is divided into two categories, including: one is sent by the interference source, so that the interfered object and / or the network can detect the existence of interference and obtain the source of interference; the other is sent by the interfered object, because the interference is usually mutual, and the spatial interference management reference signal sent by the interfered object allows the interference source and / or the network to know the existence of interference, and the interference source and / or the network to know the identity information of the interfered object and / or the interference situation.

6. The remote interference management method based on user equipment, satellite equipment and base station according to claim 4, characterized in that: According to different communication scenarios, the space interference management reference signal is divided into two categories, including: one is sent by the base station / user equipment of the ground network; the other is sent by the satellite / aircraft / user equipment of the non-ground network; through these two types of space interference management reference signals, the ground network and the non-ground network can obtain the interference situation between each other.

7. The remote interference management method based on user equipment, satellite equipment and base station according to claim 4, characterized in that: According to the difference between uplink and downlink, the spatial interference management reference signal is divided into two categories, including: one is sent in uplink transmission; the other is sent in downlink transmission.

8. The remote interference management method based on user equipment, satellite equipment and base station according to claim 4, characterized in that: The interference source actively sends a spatial interference management reference signal; the interfered source sends a spatial interference management reference signal after detecting the existence of interference.

9. A remote interference management system based on user equipment, satellite equipment and base stations, characterized in that: include: When there is co-channel interference between the terrestrial network and the non-terrestrial network, the reference signal is demodulated from the interference through the configured reference signal, and the source of the co-channel interference is obtained based on the currently demodulated reference signal; the current interference situation and the source of the co-channel interference are reported so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference.

10. The remote interference management system based on user equipment, satellite equipment and base station according to claim 9, characterized in that: include: When the downlink signal of the ground network base station interferes with the downlink user of the non-ground network, the non-ground network user equipment obtains the reference signal configuration of several ground network downlinks and demodulates the reference signal from the interference. The non-ground network user equipment obtains the source of the co-frequency interference according to the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The ground network base station and user equipment obtain the reference signal configuration of the non-ground network and monitor the communication of the non-ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the downlink signal of the non-ground network satellite interferes with the downlink user of the ground network, the ground network user equipment obtains several non-ground network downlink reference signal configurations and demodulates the reference signal from the interference. The ground network user equipment obtains the source of the co-frequency interference according to the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-ground network satellite equipment and user equipment obtain the reference signal configuration of the ground network and monitor the communication of the ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the uplink signal from the terrestrial network user equipment to the base station interferes with the uplink from the non-terrestrial network user equipment to the satellite, the non-terrestrial network satellite equipment obtains the reference signal configurations of several terrestrial network uplinks and demodulates the reference signal from the interference. The non-terrestrial network satellite equipment obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The terrestrial network base station and user equipment obtain the reference signal configuration of the non-terrestrial network and monitor the communication of the non-terrestrial network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the uplink signal from the non-terrestrial network user equipment to the satellite interferes with the uplink from the terrestrial network user equipment to the base station, the terrestrial network base station obtains several non-terrestrial network uplink reference signal configurations and demodulates the reference signal from the interference. The terrestrial network base station obtains the source of the co-frequency interference received based on the demodulated reference signal and reports the interference received so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-terrestrial network satellite equipment and user equipment obtain the reference signal configuration of the terrestrial network and monitor the communication of the terrestrial network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the downlink signal of the ground network base station interferes with the uplink of the non-ground network user equipment to the satellite, the non-ground network satellite equipment obtains the reference signal configuration of several ground network downlinks and demodulates the reference signal from the interference. The non-ground network satellite equipment obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference situation for the network to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The ground network base station and user equipment obtain the reference signal configuration of the non-ground network and monitor the communication of the non-ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the downlink signal of the non-ground network satellite equipment interferes with the uplink of the ground network user equipment to the base station, the ground network base station obtains several non-ground network downlink reference signal configurations and demodulates the reference signal from the interference. The ground network base station obtains the source of the co-frequency interference based on the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-ground network satellite equipment and user equipment obtain the reference signal configuration of the ground network and monitor the communication of the ground network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the uplink signal from the terrestrial network user equipment to the base station interferes with the downlink of the user equipment from the non-terrestrial network satellite equipment, the non-terrestrial network user equipment obtains the reference signal configuration of several terrestrial network uplinks and demodulates the reference signal from the interference. The non-terrestrial network satellite equipment obtains the source of the co-frequency interference it receives based on the demodulated reference signal and reports the interference it receives so that the network can make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The terrestrial network base station and user equipment obtain the reference signal configuration of the non-terrestrial network and monitor the communication of the non-terrestrial network, thereby making corresponding adjustments including scheduling, configuration or resource management to avoid interference. When the uplink signal from the non-terrestrial network user equipment to the satellite interferes with the downlink from the terrestrial network base station to the user equipment, the terrestrial network user obtains several non-terrestrial network uplink reference signal configurations and demodulates the reference signal from the interference. The terrestrial network user equipment obtains the source of the co-frequency interference according to the demodulated reference signal and reports the interference to the network for making corresponding adjustments including scheduling, configuration or resource management to avoid interference. The non-terrestrial network satellite equipment and user equipment obtain the reference signal configuration of the terrestrial network and monitor the communication of the terrestrial network, so as to make corresponding adjustments including scheduling, configuration or resource management to avoid interference. The reference signals include: a synchronization signal SSB in 4G and / or 5G, a tracking reference signal TRS, a demodulation reference signal DM-RS, a reference signal CSI-RS for channel estimation, a reference signal CSI-IM for interference measurement, and a reference signal PTRS for phase tracking; The reference signal is a public signal and / or a dedicated signal; The common signal is a reference signal that can be acquired / identified / demodulated by base stations / user equipment in the ground network and satellites / aircraft / user equipment in the non-ground network. The reference signal usually carries an identity ID directly or indirectly. When the interfered object demodulates the reference signal from the interference signal, the interfered object can know the source of the interference and report the interference situation for the network to make corresponding adjustments including scheduling, configuration or resource management to avoid interference; The dedicated signal is specifically used for a certain transmission / a certain link, including: uplink / downlink transmission between a certain base station in a terrestrial network and a certain user equipment and uplink / downlink transmission between a certain satellite in a non-terrestrial network and a certain user equipment; The reference signal also includes: a spatial interference management reference signal; the spatial interference management reference signal is a new reference signal introduced for terrestrial network / non-terrestrial network interference management; the resources occupied by the spatial interference management reference signal include: time domain resources, frequency domain resources and code domain / sequence resources; In the time domain, the spatial interference management reference signal is transmitted periodically, semi-statically and / or dynamically; different spatial interference management reference signals are configured with different periods and / or time domain offsets; In the frequency domain, the spatial interference management reference signal resources are determined by the subcarrier spacing and / or bandwidth and / or resource block / subcarrier position / index; the resources in the frequency domain determine the sequence length of the spatial interference management reference signal; In the code domain, different spatial interference management reference signals use different sequences; the spatial interference management reference signals directly / indirectly carry certain information; According to the interference and interference situations, the spatial interference management reference signal is divided into two categories, including: one is sent by the interference source, so that the interfered object and / or the network detects the existence of interference, so that the interfered object and / or the network obtains the interference source; the other is sent by the interfered object, because the interference is usually mutual, the spatial interference management reference signal sent by the interfered object allows the interference source and / or the network to know the existence of interference, so that the interference source and / or the network can know the identity information of the interfered object and / or the interference situation; According to different communication scenarios, the spatial interference management reference signals are divided into two categories, including: one is sent by a base station / user equipment of a terrestrial network; the other is sent by a satellite / aircraft / user equipment of a non-terrestrial network; through these two types of spatial interference management reference signals, the terrestrial network and the non-terrestrial network can obtain the interference situation between each other; According to the difference between uplink and downlink, the spatial interference management reference signal is divided into two categories, including: one is sent in uplink transmission; the other is sent in downlink transmission; The interference source actively sends a spatial interference management reference signal; the interfered source sends a spatial interference management reference signal after detecting the existence of interference.

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