Information transmission methods, and apparatus

Abstract

Disclosed in the embodiments of the present disclosure are information transmission methods, and an apparatus. A method executed by a terminal comprises: receiving a time division multiplexing (TDM) mode, wherein the TDM mode is determined on the basis of a first propagation delay of a terrestrial network (TN) and a second propagation delay of an associated non-terrestrial network (NTN). Thus, the present disclosure solves the problem of intra-frequency interference of NTNs to TNs.

Description

Information transmission method and apparatus TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to an information transmission method and apparatus. BACKGROUND

[0002] Non-terrestrial Network (NTN) is an important technology introduced by the 5th generation mobile communication system (6G). It provides wireless resources through satellites (or unmanned aerial vehicles).

[0003] The main purpose of the NTN network is to complement the coverage gap of the Terrestrial Network (TN). The coverage area of a satellite can be divided into many beam footprints. Limited by the satellite transmission power, the satellite cannot illuminate all beam footprints in the coverage area at the same time. For TN cells in the beam footprint, intra-frequency interference will occur.

[0004] SUMMARY

[0005] The present disclosure provides an information transmission method and apparatus.

[0006] The first aspect of the present disclosure provides an information transmission method, the method is executed by a terminal, and the method comprises the following steps.

[0007] Receiving configuration information, the configuration information indicating a time division multiplexing (TDM) mode, the TDM mode being a TDM mode for multiplexing a non-terrestrial network (NTN) and a terrestrial network (TN), wherein, in the case that the TDM is in an on duration, the NTN network or the TN network is in an active state.

[0008] The second aspect of the present disclosure provides an information transmission method, the method is executed by a network device, and the method comprises the following steps.

[0009] Sending configuration information, the configuration information indicating a time division multiplexing (TDM) mode, the TDM mode being a TDM mode for multiplexing a non-terrestrial network (NTN) and a terrestrial network (TN), wherein, in the case that the TDM is in an on duration, the NTN network or the TN network is in an active state.

[0010] The third aspect of the present disclosure provides a terminal, the terminal comprises the following steps.

[0011] The transceiver module is configured to receive configuration information, the configuration information indicating a time division multiplexing (TDM) mode, the TDM mode being a TDM mode multiplexed for a non-terrestrial network (NTN) and a terrestrial network (TN), wherein the NTN network or the TN network is in an active state when the TDM is in an on duration.

[0012] The fourth aspect of the present disclosure provides a network device, comprising:

[0013] The transceiver module is configured to receive configuration information, the configuration information indicating a time division multiplexing (TDM) mode, the TDM mode being a TDM mode multiplexed for a non-terrestrial network (NTN) and a terrestrial network (TN), wherein the NTN network or the TN network is in an active state when the TDM is in an on duration.

[0014] The scheme provided by the embodiments of the present disclosure enables the terminal to receive the TDM mode multiplexed for the NTN network and the TN network sent by the network device, thereby avoiding interference with the TN within the range when the satellite illuminates a certain beam footprint in the TDM mode, and improving the performance of the communication system. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background art, the drawings needed to be used in the embodiments of the present disclosure or the background art will be described below.

[0016] FIG. 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0017] FIG. 1B is a schematic diagram of the coverage area of an NTN satellite;

[0018] FIG. 2A is an interaction diagram of an information transmission method according to an embodiment of the present disclosure;

[0019] FIG. 2B is a schematic diagram of the TDM mode of uplink NTN and TN according to an embodiment of the present disclosure;

[0020] FIG. 2C is a schematic diagram of the TDM mode of downlink NTN and TN according to an embodiment of the present disclosure;

[0021] FIGS. 3A-3B are flow diagrams of an information transmission method according to an embodiment of the present disclosure;

[0022] FIGS. 4A-4B are flow diagrams of an information transmission method according to an embodiment of the present disclosure;

[0023] FIG. 5 is an interaction diagram of an information transmission method according to an embodiment of the present disclosure;

[0024] FIG. 6A is a structural schematic diagram of a terminal according to an embodiment of the present disclosure;

[0025] FIG. 6B is a structural schematic diagram of a network device according to an embodiment of the present disclosure;

[0026] FIG. 7A is a structural schematic diagram of a communication device according to an embodiment of the present disclosure;

[0027] FIG. 7B is a structural schematic diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] Embodiments of the present disclosure provide an information transmission method and apparatus.

[0029] In a first aspect, an embodiment of the present disclosure provides an information transmission method, the method comprising:

[0030] receiving configuration information, the configuration information indicating a time division multiplexing (TDM) mode, the TDM mode being a TDM mode multiplexed for a non-terrestrial network (NTN) and a terrestrial network (TN), wherein the NTN network or the TN network is in an active state in a case that the TDM is in an on duration.

[0031] In the above embodiment, the terminal can receive the TDM mode multiplexed for the NTN network and the TN network sent by the network device, so that the TDM mode is used to avoid interference between the TN and the NTN when the satellite illuminates a certain beam footprint, and the performance of the communication system is improved.

[0032] In some embodiments in combination with the first aspect, in some embodiments, the method further comprises: receiving or sending data in a case that a first condition is met, the first condition comprising that the TN accessed by the terminal is in the active state and the NTN accessed is in an inactive state, and a frequency band available for the TN network is at least partially the same as a frequency band available for the NTN network.

[0033] In some embodiments in combination with the first aspect, in some embodiments, the method further comprises: stopping receiving or sending data in a case that a second condition is met, the second condition comprising that the NTN network is in the active state.

[0034] In the above embodiment, the terminal accessing the TN network and the NTN network can receive or send data through the TN network in a case that the TN network is in the active state and the NTN is in the inactive state, and can stop data reception or transmission through the TN network in a case that the NTN network is in the active state, so that the TN network is used for reception or transmission in a time-division manner, and interference between the TN and the NTN network is avoided.

[0035] In some embodiments of the first aspect, the TDM mode is determined based on a first propagation delay of the TN network and a second propagation delay of the NTN network.

[0036] In the above embodiments, the terminal transmits and receives data based on the TDM mode determined based on the time delay of the TN network and the NTN network, thereby ensuring the reliability and success rate of the terminal transmission and reception.

[0037] In some embodiments of the first aspect, the TDM mode includes an uplink TDM mode and a downlink TDM mode.

[0038] In the above embodiments, the terminal can receive the DL TDM mode and the UL TDM mode respectively, so that the terminal can directly control the uplink and downlink transmission based on the TDM mode, thereby simplifying the difficulty of the terminal to understand the TDM mode.

[0039] In some embodiments of the first aspect, the TDM mode includes at least one of:

[0040] a cycle of the uplink TDM mode, a duration of an on period, a starting time offset of the on period, and a first time length of an early end of an active period;

[0041] a cycle of the downlink TDM mode, a duration of an on period, a starting time offset of the on period, and a second time length of a delayed start of an active period;

[0042] a cycle and a duration of an on period of the uplink and downlink TDM modes;

[0043] a starting time offset of the on period of the uplink TDM mode and the first time length of the early end of the active period;

[0044] a starting time offset of the on period of the downlink TDM mode and the second time length of the delayed start of the active period;

[0045] a starting time offset of the on period of the uplink TDM mode, and a first offset value relative to a starting time offset of the on period of the downlink TDM mode;

[0046] a starting time offset of the on period of the downlink TDM mode, and a second offset value relative to a starting time offset of the on period of the uplink TDM mode.

[0047] In the above embodiments, the terminal can receive various styles of TDM modes, thereby improving the flexibility of TDM mode configuration and providing conditions for reducing the transmission resources occupied by the transmission TDM mode.

[0048] In some embodiments of the first aspect, the receiving the configuration information includes:

[0049] receiving the configuration information through a broadcast message; or

[0050] receiving the configuration information through a first message.

[0051] In the above embodiments, the terminal can receive the TDM pattern in multiple ways, improving the flexibility and reliability of TDM pattern transmission, providing conditions for reducing the amount of resources used by TDM pattern transmission, reducing the power consumption of the terminal and network equipment.

[0052] In some embodiments of the first aspect, the receiving the configuration information through the first message comprises:

[0053] In the case that the terminal is in different states, the configuration information is received through different first messages.

[0054] In some embodiments of the first aspect, the different terminal states comprise any of the following: idle state, inactive state, and connected state.

[0055] In the above embodiments, the terminal can receive the TDM pattern suitable for different terminal states through different first messages, improving the flexibility of the TDM pattern and providing conditions for improving the performance of the terminal in different terminal states.

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

[0057] suspending uplink services in the case that the TDM pattern is in an uplink closed period; and / or

[0058] resuming uplink services in the case that the TDM pattern is in an uplink open period.

[0059] In some embodiments of the first aspect, the method further comprises:

[0060] suspending downlink services in the case that the TDM pattern is in a downlink closed period; and / or

[0061] resuming downlink services in the case that the TDM pattern is in a downlink open period.

[0062] In the above embodiments, the terminal can suspend or resume the services being executed based on whether the TDM pattern is in an open period, saving the energy consumption of the terminal.

[0063] In some embodiments of the first aspect, the method further comprises:

[0064] If the downlink signal quality or uplink power meets the first condition, then execute the uplink service, or...

[0065] If the downlink signal quality meets the second condition, the downlink service will be executed.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the first condition described above includes at least one of the following:

[0067] The downlink reference signal received power RSRP of the TN cell is greater than the first threshold value;

[0068] The downlink reference signal reception quality (RSRQ) of the TN cell is greater than the second threshold.

[0069] The terminal's uplink transmission power is less than the third threshold.

[0070] In conjunction with some embodiments of the first aspect, in some embodiments, the second condition described above includes at least one of the following:

[0071] The downlink reference signal received power RSRP of the TN cell is greater than the fourth threshold.

[0072] The downlink reference signal reception quality (RSRQ) of the TN cell is greater than the fifth threshold.

[0073] In the above embodiments, the terminal can determine whether it can perform uplink or downlink services based on downlink signal quality and / or uplink transmission power, providing conditions for further improving the communication performance of the terminal.

[0074] In conjunction with some embodiments of the first aspect, in some embodiments, the above-mentioned receiving configuration information includes:

[0075] Configuration information is received via the Media Access Control (MAC) element (CE); or...

[0076] Configuration information is received via the Physical Downlink Control Channel (PDCCH).

[0077] In the above embodiments, the terminal can receive TDM mode through different channels, which provides conditions for improving the flexibility of TDM mode transmission.

[0078] Secondly, embodiments of this disclosure provide an information transmission method, the method comprising:

[0079] Send configuration information indicating Time Division Multiplexing (TDM) mode, which is a TDM mode for multiplexing non-terrestrial networks (NTN) and terrestrial networks (TN). When the TDM is in the onduration period, the NTN network or the TN network is in an active state.

[0080] In some embodiments of the second aspect, the TDM pattern is determined based on a first propagation delay of the TN and a second propagation delay of the NTN.

[0081] In some embodiments of the second aspect, the TDM pattern comprises an uplink TDM pattern and a downlink TDM pattern.

[0082] In some embodiments of the second aspect, the TDM pattern comprises at least one of:

[0083] a cycle of the uplink TDM pattern, a duration of an on-duration, an offset of a start time of the on-duration, and a first duration of an early end of an active time;

[0084] a cycle of the downlink TDM pattern, a duration of an on-duration, an offset of a start time of the on-duration, and a second duration of a delayed start of an active time;

[0085] a cycle and a duration of an on-duration of the uplink and downlink TDM patterns;

[0086] an offset of a start time of the on-duration of the uplink TDM pattern and the first duration of the early end of the active time;

[0087] an offset of a start time of the on-duration of the downlink TDM pattern and the second duration of the delayed start of the active time;

[0088] an offset of a start time of the on-duration of the uplink TDM pattern, a first offset value relative to an offset of a start time of the on-duration of the downlink TDM pattern;

[0089] an offset of a start time of the on-duration of the downlink TDM pattern, a second offset value relative to an offset of a start time of the on-duration of the uplink TDM pattern.

[0090] In some embodiments of the second aspect, the sending the configuration information comprises:

[0091] sending the configuration information through a broadcast message; or

[0092] sending the configuration information through a first message.

[0093] In some embodiments of the second aspect, the sending the configuration information through the first message comprises:

[0094] sending the configuration information through different first messages in cases where the terminal is in different states.

[0095] In some embodiments of the second aspect, the different terminal states comprise any one of:

[0096] idle state, inactive state, and connected state.

[0097] In some embodiments combining with the second aspect, in some embodiments, the sending the configuration information comprises:

[0098] sending the configuration information through a medium access control (MAC) control element (CE); or

[0099] sending the configuration information through a physical downlink control channel (PDCCH).

[0100] In some embodiments combining with the second aspect, in some embodiments, the method further comprises:

[0101] receiving the TDM pattern sent by a non-terrestrial network (NTN) device.

[0102] In some embodiments combining with the second aspect, in some embodiments, the method further comprises:

[0103] receiving a second propagation delay sent by the NTN device;

[0104] determining, according to the second propagation delay and a first propagation delay of the TN, a first time length of an early end of an uplink active period and a second time length of a delayed start of a downlink active period of the TN network.

[0105] In a third aspect, the embodiments of the present disclosure provide a terminal, comprising a transceiver module and a processing module; wherein the terminal is configured to perform the first aspect and the optional implementation manners of the first aspect.

[0106] In a fourth aspect, the embodiments of the present disclosure provide a network device, comprising a transceiver module and a processing module; wherein the network device is configured to perform the second aspect and the optional implementation manners of the second aspect.

[0107] In a fifth aspect, the embodiments of the present disclosure provide a communication apparatus, comprising one or more processors; wherein the communication apparatus is configured to perform the first aspect and the optional implementation manners of the first aspect.

[0108] In a sixth aspect, the embodiments of the present disclosure provide a communication apparatus, comprising one or more processors; wherein the communication apparatus is configured to perform the second aspect and the optional implementation manners of the second aspect.

[0109] In a seventh aspect, the embodiments of the present disclosure provide a communication system, comprising a terminal and a network device; wherein the terminal is configured to perform the method described in the first aspect and the optional implementation manners of the first aspect, and the network device is configured to perform the method described in the second aspect and the optional implementation manners of the second aspect.

[0110] In an eighth aspect, the embodiments of the present disclosure provide a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device performs the method described in the first aspect and the optional implementation of the first aspect, the second aspect and the optional implementation of the second aspect.

[0111] In a ninth aspect, the embodiments of the present disclosure provide a program product, which is executed by a communication device, so that the communication device performs the method described in the first aspect and the optional implementation of the first aspect, the second aspect and the optional implementation of the second aspect.

[0112] In a tenth aspect, the embodiments of the present disclosure provide a computer program, which, when executed on a computer, causes the computer to perform the method described in the first aspect and the optional implementation of the first aspect, the second aspect and the optional implementation of the second aspect.

[0113] In an eleventh aspect, the embodiments of the present disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described in the first aspect and the optional implementation of the first aspect, the second aspect and the optional implementation of the second aspect.

[0114] It can be understood that the terminal, network device, communication device, communication system, storage medium, program product, computer program, chip or chip system are all used to execute the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved are referred to the beneficial effects in the corresponding method, which will not be described here.

[0115] The embodiments of the present disclosure propose an information transmission method and device. In some embodiments, the terms of information transmission method, signal processing method and communication method can be replaced with each other, the terms of signal processing device, information processing device and communication device can be replaced with each other, and the terms of signal measurement system, information processing system and communication system can be replaced with each other.

[0116] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or all steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation of other embodiments.

[0117] In the embodiments of the present disclosure, the terms and / or descriptions among the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0118] The terms used in the embodiments of the present disclosure are only for the purpose of describing particular embodiments and are not used as limitations of the present disclosure.

[0119] In the embodiments of the present disclosure, unless otherwise specified, the elements expressed in singular form, such as "one", "one", "the", "the", "the", "the", "this", etc., can represent "one and only one", and can also represent "one or more", "at least one", etc. For example, in the case of using articles such as "a", "an", "the" in English, the noun after the article can be understood as a singular expression, and can also be understood as a plural expression.

[0120] In the embodiments of the present disclosure, "plurality" refers to two or more.

[0121] In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple", and the like can be replaced with each other.

[0122] In some embodiments, the writing methods such as "at least one of A, B", "A and / or B", "A in one case, B in another case", "in response to a case A, in response to another case B" and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments, A and B are selected to be executed (A and B are selectively executed); in some embodiments, A and B (A and B are executed). When there are more branches such as A, B, C, etc., it is similar to the above.

[0123] In some embodiments, the writing methods such as "A or B" and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments, A and B are selected to be executed (A and B are selectively executed). When there are more branches such as A, B, C, etc., it is similar to the above.

[0124] The prefix words of "first", "second" and the like in the embodiments of the present disclosure are merely used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description objects are described in the claims or embodiments, and should not be construed as redundant limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different. For another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and the contents thereof can be the same or different.

[0125] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0126] In some embodiments, the terms of "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0127] In some embodiments, the terms of "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above" and the like can be replaced with each other, and the terms of "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below" and the like can be replaced with each other.

[0128] In some embodiments, the apparatuses and devices can be interpreted as physical, as well as virtual, whose names are not limited to the names described in the embodiments, and in some cases can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0129] In some embodiments, "network" can be interpreted as an apparatus contained in the network, such as an access network device, a core network device, etc.

[0130] In some embodiments, "access network device (AN device)" can also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments can also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0131] In some embodiments, a "terminal" or "terminal device" can be referred to as a "user equipment" (UE), a "user terminal," a Narrow Band-Internet of Things (NB-IoT) device, a "mobile station" (MS), a "mobile terminal" (MT), a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, and / or the like.

[0132] In some embodiments, an access network device, a core network device, or a network device can be replaced with a terminal. For example, for a structure in which communication between an access network device, a core network device, or a network device and a terminal is replaced with communication between a plurality of terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), and / or the like), embodiments of the present disclosure can also be applied. In this case, a structure in which a terminal has all or part of the functions of an access network device can also be provided. Furthermore, terms such as "uplink," "downlink," and / or the like can also be replaced with terms corresponding to inter-terminal communication (e.g., "side"). For example, an uplink channel, a downlink channel, and / or the like can be replaced with a side channel, and an uplink, a downlink, and / or the like can be replaced with a side link.

[0133] In some embodiments, the terminal can be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device can also be configured to have all or part of the functions of the terminal.

[0134] In some embodiments, the data, information, and the like can be acquired in compliance with the laws and regulations of the country where the terminal is located.

[0135] In some embodiments, the data, information, and the like can be acquired after obtaining the consent of the user.

[0136] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0137] FIG. 1A is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure.

[0138] As shown in FIG. 1A, the communication system 100 includes a terminal 101 and a network device 102.

[0139] In some embodiments, the terminal 101 includes at least one of a mobile phone, a wearable device, an Internet of Things device, a Narrow Band-Internet of Things (NB-IoT) device, a satellite communication device, a car with communication function, a smart car, a Pad, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, a RedCap terminal, and the like, but is not limited thereto.

[0140] In some embodiments, the network device 102 is, for example, a node or device that accesses a terminal to a wireless network, and the network device can include at least one of a node such as a satellite or a drone in a signal measurement network, an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a next generation RAN node (NG-RAN node), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, an access node in a Wi-Fi system, but is not limited thereto.

[0141] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, at this time, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be realized through software or programs.

[0142] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), where the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the access network device, and part of the functions of the protocol layers are controlled by the CU, and the remaining part or all of the functions of the protocol layers are distributed in the DU and controlled by the CU, but the present disclosure is not limited thereto.

[0143] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed in the embodiments of the present disclosure. It can be known by those skilled in the art that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions proposed in the embodiments of the present disclosure are also applicable to similar technical problems.

[0144] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1A or part of the subjects, but are not limited thereto. The subjects shown in FIG. 1A are illustrative, and the communication system can include all or part of the subjects in FIG. 1A, or other subjects other than those in FIG. 1A. The number and form of each subject is arbitrary, each subject can be physical or virtual, the connection relationship between each subject is illustrative, each subject can not be connected or can be connected, the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0145] Embodiments of the present disclosure can be applied to a Non-terrestrial Network (NTN), Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Narrow Band-IoT (NB-IoT) system, Vehicle-to-Everything (V2X), system using other communication methods, next-generation system expanded based on them, and the like. Further, a plurality of systems can be applied in combination (for example, combination of LTE or LTE-A and 5G, and the like).

[0146] The main purpose of Non-terrestrial Network (NTN) is to complement the coverage gap of Terrestrial Network (TN). Since the spectrum of sub-6 gigahertz (GHz) is scarce and the NTN network is used to complement the TN coverage gap, there is a problem of low resource utilization. Therefore, by controlling the 6G NTN to share the same spectrum as the 6G TN, the spectrum utilization efficiency can be improved compared to the NTN using a dedicated spectrum.

[0147] FIG. 1B is a schematic diagram of a coverage area of an NTN satellite. As shown in FIG. 1B, in the coverage area of one satellite, there are multiple beam footprints. Due to the limited satellite transmit power, the satellite cannot illuminate all the beam footprints in the coverage area at the same time, but only a part of the beam footprints (light-colored beam footprints in the figure). Then, through the method of beam hopping, full coverage of all beam footprints in the range is achieved. For all the illuminated beam footprints at a certain time, there will be no interference to TN for the TN cells outside these beam footprints. However, for the TN cells within the beam footprint, there will be intra-frequency interference.

[0148] The present disclosure provides a method of avoiding interference with TN by adjusting the on Duration of TN UE in the area when the satellite illuminates a certain beam coverage area through Time Division Multiplexing (TDM).

[0149] In some embodiments, the terms "on Duration", "on" and the like can be used to indicate the period in which the terminal or network device is in an active state in the TDM mode, and during this period, the terminal or network device can perform transmission and reception.

[0150] In some embodiments, the terms "off Duration", "off" and the like can be used to indicate the period in which the terminal or network device is in an inactive state in the TDM mode, and during this period, the terminal or network device cannot perform transmission and reception.

[0151] In some embodiments, the terms "active", "activate", "available", "valid", and the like can be replaced with each other.

[0152] In some embodiments, the terms "inactive", "non-active", "non-activate", "unavailable", "non-valid", "invalid", and the like can be replaced with each other.

[0153] The information transmission method and apparatus provided by the present disclosure will be described in detail below with reference to the accompanying drawings.

[0154] FIG. 2A is an interaction diagram of an information transmission method according to an embodiment of the present disclosure. As shown in FIG. 2A, the present embodiment relates to an information transmission method, which comprises:

[0155] In step S2101, the TN network device 102 receives the second propagation delay sent by the NTN device.

[0156] In some embodiments, the TN network device 102 can be a TN base station, and the NTN device can be an NTN base station.

[0157] In some embodiments, the terms "NTN device", "non-terrestrial network device", "non-terrestrial network device", "non-terrestrial communication device", "non-terrestrial communication device", "non-terrestrial base station", "non-terrestrial base station", and the like can be replaced with each other.

[0158] In some embodiments, the terms "terrestrial network", "terrestrial network", "terrestrial communication", "terrestrial communication", and the like can be replaced with each other.

[0159] In some embodiments, since the beam footprint of the NTN is naturally a time division multiplexing (TDM) working mode, the interference problem between the NTN beam footprint On period and the TN network can be avoided by TDM.

[0160] In some embodiments, in order to assist the TN network device 102 to accurately determine the TDM mode of the UE accessing the TN network, the NTN device can send the second propagation delay (Propagation Delay, PD) within its beam footprint to the TN network device 102.

[0161] In some embodiments, the NTN propagation delay represents the propagation delay from the terminal 101 in the NTN coverage to the network device 102 or the uplink reference point.

[0162] In some embodiments, the NTN coverage is one or more beam footprints of a satellite, for example.

[0163] In some embodiments, the second propagation delay can be a one-way propagation delay or a Round-Trip Time (RTT).

[0164] In some embodiments, the second propagation delay can be a maximum one-way propagation delay or a RTT, or a maximum one-way propagation delay difference or a RTT difference within a coverage.

[0165] In some embodiments, the terms “propagation delay”, “transmission delay”, “sending delay”, “receiving delay”, and the like can be replaced with each other.

[0166] In the above embodiments, the second propagation delay sent by the NTN network device can also provide conditions for the TN network device 102 to accurately schedule the terminal 101.

[0167] In some embodiments, the TN network device 102 can receive the second propagation delay sent by the NTN network device through an inter-network device interface or via a core network device.

[0168] In step S2102, the TN network device 102 determines a TDM pattern according to the second propagation delay and the first propagation delay of the TN.

[0169] In some embodiments, the terms “TDM pattern”, “TDM pattern”, and the like can be used to indicate whether the terminal 101 is allowed to perform transceiving operations in the TN network or the NTN network in different states (periods) of the TDM pattern, and in some cases, the above-mentioned terms can be replaced with each other.

[0170] In some embodiments, the terminal 101 is a terminal that simultaneously accesses the TN and the NTN network.

[0171] In some embodiments, the TN network device 102 can determine, according to the second propagation delay and the first propagation delay of the TN network, a first time length for the uplink active period of the TN network to end in advance and a second time length for the downlink active period to start late.

[0172] In some embodiments, the first time length and the second time length can be the same or different.

[0173] In some embodiments, the TDM pattern can include an uplink TDM pattern and / or a downlink TDM pattern.

[0174] In some embodiments, assuming that TN and NTN are aligned on the gNB side for uplink (UL) and the NTN UL transmission outside TN network coverage has no impact on TN network uplink transmission, FIG. 2B is a TDM mode diagram of uplink NTN and TN according to an embodiment of the present disclosure.

[0175] As shown in FIG. 2B, when the UL on of the NTN UE starts, the UL on of the TN UE has not ended, so that there is a first time length T1 of time domain overlap (as area I in FIG. 2B) between the UL on of the TN UE and the UL on of the NTN UE, and in the first time length, the NTN causes interference to the TN. At this time, in order to avoid the interference, the UL on of the TN UE can be ended in advance by the first time length T1.

[0176] In the formula, T1 = PD1-PD2, where PD1 is the maximum propagation delay from the UE in the beam footprint of the NTN network to the NTN gNB, that is, the second propagation delay, and PD2 is the maximum propagation delay from the UE in the TN network coverage to the TN gNB, that is, the first propagation delay.

[0177] In FIG. 2B, Interference to TN is used to indicate that there is interference from the NTN to the TN during this period; No interference to TN is used to indicate that there is no interference from the NTN to the TN during this period; TN PD is used to indicate the first propagation delay from the UE in the TN network to the TN gNB, and NTN PD is used to indicate the second propagation delay from the UE in the beam footprint of the NTN to the NTN gNB.

[0178] In the embodiments of the present disclosure, in order to avoid the influence of the beam footprint illuminated by the satellite on the uplink transmission of the TN UE, the uplink active period of the TN UE can be ended in advance, thereby avoiding the interference of the TN to the NTN and improving the communication performance of the NTN UE.

[0179] In some embodiments, assuming that TN and NTN are aligned on the gNB side for downlink (DL) and the NTN UE DL reception outside TN coverage cannot receive TN DL, FIG. 2C is a TDM mode diagram of downlink NTN and TN according to an embodiment of the present disclosure.

[0180] As shown in FIG. 2C, when the DL on of the TN UE starts, the DL on of the NTN UE has not ended yet, so that there is a second time duration of time domain overlap (as area II in FIG. 2B) between the DL on of the TN UE and the UL on of the NTN, in which the TN will cause interference to the NTN. At this time, in order to avoid the interference, the DL on of the TN UE can be delayed for the second time duration T2.

[0181] In some embodiments, since the second time duration T2 is also related to the second propagation delay and the first propagation delay, for the UEs in the same NTN network, the second time duration T2 is equal to the first time duration T1.

[0182] As shown in the timing diagrams in FIGS. 2B and 2C, the on (or on duration) time durations of UL and DL are equal, and the periods are also the same, only the starting time instants are different, so that the network device 102 can only configure the terminal 101 with the on duration offset of UL and DL respectively.

[0183] In some embodiments, the on duration time durations and / or periods of UL and DL can also be different. At this time, the network device 102 can configure the terminal 101 with the on duration time durations, periods and on duration offsets of UL and DL respectively.

[0184] In some embodiments, since the beam coverage areas illuminated by the NTN network can be different at different time instants, when the satellite illuminates a certain beam footprint, the NTN device can also determine the TDM mode of the TN terminal 101 at this time based on the second propagation delay corresponding to the beam footprint of the NTN and the first propagation delay corresponding to the TN, and then synchronize to the TN network device.

[0185] In some embodiments, the NTN device can provide the TDM mode to the network device 102 through the interface between the network device 102 or through the core network device.

[0186] In some embodiments, the TDM mode can include uplink TDM mode and downlink TDM mode.

[0187] In step S2103, the TN network device 102 sends configuration information to the terminal 101.

[0188] In some embodiments, the configuration information is used to indicate a TDM mode, and the TDM mode is a TDM mode multiplexed for the NTN and the TN, wherein the NTN network or the TN network is in an active state when the TDM is in an on duration.

[0189] In some embodiments, due to the transmission delay between the TN network device 102 and the terminal 101, which can be smaller than the transmission delay between the NTN network device and the terminal 101, the TDM mode can be sent by the TN network device 102 to the terminal 101 in the embodiments of the present disclosure.

[0190] In some embodiments, the configuration information can also be sent by the NTN network device to the terminal. Thus, the flexibility and diversity of sending the configuration information to the terminal 101 are improved, and the probability of reliable reception of the configuration information is improved.

[0191] In some embodiments, the terminal 101 can receive or send data when a first condition is met, and the first condition includes that the TN accessed by the terminal is in an active state, and the NTN accessed is in an inactive state, and the frequency band available to the TN network and the frequency band available to the NTN network are at least partially the same.

[0192] That is, the terminal 101 can only receive and transmit data through the TN when the accessed TN is in an active state. Since the NTN network is in an inactive state at this time, it is ensured that the terminal 101 will not be disturbed at this time, and the reliability of the reception and transmission is improved.

[0193] In some embodiments, the terminal 101 can stop receiving or sending data when a second condition is met, and the second condition includes that the NTN network is in an active state.

[0194] That is, the terminal 101 no longer uses the TN network to receive and transmit data when the NTN network is in an active state, thereby avoiding the influence of the NTN network on the TN network.

[0195] In some embodiments, the terminal 101 can receive the uplink TDM mode and the downlink TDM mode through different messages respectively. Alternatively, the terminal 101 can also receive the uplink TDM mode and the downlink TDM mode through one message.

[0196] In some embodiments, the terminal 101 can receive the TDM mode through a broadcast message.

[0197] In some embodiments, the TDM pattern provided to the UE through the system broadcast message is applicable to terminals in any state. For example, the terminal 101 can perform transmission when the TDM is in the on duration period based on the TDM pattern received through the broadcast message, regardless of whether the terminal 101 is in an idle state, an inactive state, or a connected state.

[0198] In some embodiments, the terminal 101 can further receive the configuration information through the first message.

[0199] In some embodiments, the first message can be a dedicated message for the terminal 101.

[0200] In some embodiments, the terminal 101 can receive the configuration information through different first messages when the terminal 101 is in different states.

[0201] In some embodiments, the state of the terminal can be an idle state, an inactive state, a connected state, and the like.

[0202] In some embodiments, the association between the different states of the terminal and the first message can be agreed upon by a protocol or indicated by the network device 102, and the disclosure does not limit the association.

[0203] In some embodiments, the network device 102 can send the TDM pattern for the connected state, the idle state, and the inactive state to the terminal 101 through different first messages, respectively.

[0204] In some embodiments, if the network provides the TDM pattern for the idle state and / or the inactive state through the connection release message, the terminal 101 can override the TDM pattern received through the system message using the TDM pattern.

[0205] In some embodiments, the terms “override”, “replace”, “replace”, “take precedence over”, “override”, and the like can be replaced with each other.

[0206] In some embodiments, the terminal 101 can receive the configuration information through a Medium Access Control (MAC) control element (CE).

[0207] In the embodiments of the disclosure, the configuration information is received at the MAC layer, thereby improving the reliability of the TDM pattern transmission.

[0208] In some embodiments, the terminal 101 can receive the configuration information through a physical downlink control channel (PDCCH).

[0209] In the embodiments of the present disclosure, by receiving the configuration information through the PDCCH channel, the flexibility of the TDM mode transmission is improved.

[0210] In some embodiments, the TDM mode includes at least one of: a cycle of the uplink TDM mode, an on duration duration, an on duration offset, and a first duration of early ending of the active period; a cycle of the downlink TDM mode, an on duration duration, an on duration offset, and a second duration of delayed starting of the active period; a cycle and an on duration duration of the uplink and downlink TDM mode; an on duration offset and a first duration of early ending of the active period of the uplink TDM mode; an on duration offset and a second duration of delayed starting of the active period of the downlink TDM mode; an on duration offset of the uplink TDM mode, a first offset value relative to an on duration offset of the downlink TDM mode; an on duration offset of the downlink TDM mode, a second offset value relative to an on duration offset of the uplink TDM mode.

[0211] In some embodiments, the on duration offset can be an offset of the starting time of the on duration of the UE relative to the starting time of the on duration of the network device 102.

[0212] In some embodiments, the terms "on duration duration", "active state duration", "active duration", "available duration", "available time" and the like can be replaced with each other.

[0213] In some embodiments, the units of the on duration offset, the on duration duration, and the cycle can be orthogonal frequency division multiplexing (OFDM) symbols, slots, subframes, milliseconds, seconds, and the like.

[0214] In some embodiments, the TDM pattern can be a pattern for time division multiplexing of the TN network and the NTN network. During TN network UL active, the NTN network stops receiving, and / or, during TN network DL active, the NTN network stops transmitting. During NTN network UL active, the TN network stops receiving, and / or, during NTN network DL active, the TN network stops transmitting.

[0215] In some embodiments, the active period of the TN network (or the NTN network) is an on duration (or on period) of the TDM pattern.

[0216] In some embodiments, during the TN UL inactive period, any TN uplink transmission is prohibited. During the TN DL inactive period, any TN downlink reception is prohibited.

[0217] In the above embodiments, the TDM pattern can be configured in various ways, thereby improving the flexibility of TDM pattern configuration and transmission, providing conditions for reducing the amount of resources used for TDM pattern transmission, and reducing the power consumption of terminals and network devices.

[0218] Step S2104, in the case where the TDM pattern is in the uplink closed period, the terminal 101 suspends the uplink service, and resumes the uplink service when the TDM pattern enters the uplink open period.

[0219] In some embodiments, during the TDM pattern UL off period, the network device 102 will stop receiving uplink transmission, at this time, in order to avoid meaningless uplink transmission power consumption, the terminal 101 can suspend the uplink service. For example, it can suspend initiating random access (RA) on the random access channel (RACH), suspend sending scheduling requests (SR), and / or suspend sending uplink hybrid automatic repeat requests (HARQ), etc.

[0220] Step S2105, in the case where the TDM pattern is in the downlink closed period, the terminal 101 suspends the downlink service, and resumes the downlink service when the TDM pattern enters the downlink open period.

[0221] In some embodiments, during the TDM pattern DL off period, the network device 102 will stop transmitting downlink transmission, at this time, in order to avoid wasting power consumption by listening to the downlink channel without dissent, the terminal 101 can suspend the downlink service.

[0222] In some embodiments, the terminal 101 can suspend one or more of the following services: monitoring of a physical downlink control channel (PDCCH), DL HARQ, radio link monitoring (RLM), radio link failure (RLF) handling, bidirectional forwarding detection (BFD), bidirectional forwarding recovery (BFR), and system message reception.

[0223] In some embodiments, the terminal 101 can perform the uplink service when the downlink signal quality or the uplink power satisfies a first condition.

[0224] In some embodiments, the terminal 101 can perform the uplink service when the downlink signal quality or the uplink power satisfies the first condition, regardless of whether the UL TDM pattern is in an active period.

[0225] In some embodiments, the first condition comprises at least one of: a downlink reference signal received power (RSRP) of the TN cell being greater than a first threshold value; a downlink reference signal received quality (RSRQ) of the TN cell being greater than a second threshold value; and an uplink transmission power being less than a third threshold value.

[0226] In some embodiments, the first threshold value, the second threshold value, and the third threshold value can be agreed upon by a protocol or indicated by a network device, and the present disclosure does not limit the same.

[0227] In some embodiments, the first threshold value, the second threshold value, and the third threshold value can be the same or different, and the present disclosure does not limit the same.

[0228] In the above embodiments, if the downlink signal quality is good, it indicates that the current uplink communication state is good, and thus the terminal 101 can continue to perform uplink transmission regardless of whether it is currently in an on period of the UL TDM pattern. Alternatively, if the current uplink transmission power is less than the third threshold value, the uplink transmission is continued, and the interference to other uplink transmissions is also small, and thus the terminal 101 can also continue to perform the uplink service regardless of whether it is currently in an on period of the UL TDM pattern.

[0229] In some embodiments, the terminal 101 can perform downlink service when the downlink signal quality meets the second condition.

[0230] In some embodiments, the terminal 101 can perform downlink service when the downlink signal quality meets the second condition, regardless of whether the current DL TDM pattern is in the on period.

[0231] In some embodiments, the second condition comprises at least one of: a downlink reference signal received power (RSRP) of the TN cell being greater than a fourth threshold value; a downlink reference signal received quality (RSRQ) of the TN cell being greater than a fifth threshold value.

[0232] In the above embodiments, if the downlink signal quality is good, it means that the current downlink channel state is good, so the terminal 101 can continue to use the current downlink channel to receive downlink transmission regardless of whether the DL TDM pattern is in the on period.

[0233] The communication method related to the embodiments of the present disclosure can include at least one of steps S2101-S2105. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, steps S2102+S2103 can be implemented as an independent embodiment, steps S2103+S2104 can be implemented as an independent embodiment, steps S2103+S2105 can be implemented as an independent embodiment, and the like, but not limited thereto.

[0234] In the present embodiment or example, each step can be independent, arbitrarily combined or exchanged in order, optional modes or optional examples can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0235] FIG. 3A is a flow diagram of an information transmission method according to an embodiment of the present disclosure. As shown in FIG. 3A, the embodiments of the present disclosure relate to an information transmission method, the above method is performed by the terminal 101, and the above method comprises:

[0236] Step S3101, receiving configuration information sent by the network device 102.

[0237] Step S3102, suspending uplink service when the TDM mode is in the uplink closed period, and resuming the uplink service when the TDM mode enters the uplink open period.

[0238] Step S3103, suspending downlink service when the TDM mode is in the downlink closed period, and resuming the downlink service when the TDM mode enters the downlink open period.

[0239] The optional implementation of steps S3101-S3103 can refer to the optional implementation of steps S2103-S2105 of FIG. 2A and other related parts of the embodiments involved in FIG. 2A, which will not be repeated here.

[0240] The communication method involved in the embodiments of the present disclosure can include at least one of steps S3101-S3103. For example, step S3101 can be implemented as an independent embodiment, steps S3101+S3102 can be implemented as an independent embodiment, steps S3101+S3103 can be implemented as an independent embodiment, and the like, but are not limited thereto.

[0241] In the present embodiment or example, each step can be independently combined or exchanged in order, and the optional mode or optional example can be combined with any step of other embodiments or other examples.

[0242] FIG. 3B is a flow diagram of an information transmission method according to an embodiment of the present disclosure. As shown in FIG. 3B, the embodiments of the present disclosure involve an information transmission method, which is executed by the terminal 101, and the method includes:

[0243] Step S3201, receiving configuration information, wherein the configuration information indicates a TDM mode, the TDM mode is a TDM mode for multiplexing of the NTN and the TN, and the NTN network or the TN network is in an active state when the TDM is in an on duration.

[0244] In some embodiments, the above method further includes:

[0245] Under the first condition, receiving or sending data, the first condition includes that the TN accessed by the terminal is in an active state, and the NTN accessed is in an inactive state, and the frequency band available to the TN network is at least partially the same as the frequency band available to the NTN network.

[0246] In some embodiments, the above method further includes: under the second condition, stopping receiving or sending data, the second condition includes that the NTN network is in an active state.

[0247] In some embodiments, the above TDM mode is determined based on a first propagation delay of the TN network and a second propagation delay of the NTN network.

[0248] In some embodiments, the above TDM mode includes an uplink TDM mode and a downlink TDM mode.

[0249] In some embodiments, the above TDM mode includes at least one of:

[0250] Periodicity of uplink TDM pattern, duration of on-duration, offset of on-duration start time, and first time length of early ending of active time;

[0251] Periodicity of downlink TDM pattern, duration of on-duration, offset of on-duration start time, and second time length of late starting of active time;

[0252] Periodicity and duration of on-duration of uplink and downlink TDM patterns;

[0253] Offset of on-duration start time of uplink TDM pattern and first time length of early ending of active time;

[0254] Offset of on-duration start time of downlink TDM pattern and second time length of late starting of active time;

[0255] Offset of on-duration start time of uplink TDM pattern, and first offset value relative to offset of on-duration start time of downlink TDM pattern;

[0256] Offset of on-duration start time of downlink TDM pattern, and second offset value relative to offset of on-duration start time of uplink TDM pattern.

[0257] In some embodiments, the receiving configuration information comprises:

[0258] receiving the configuration information through a broadcast message; or,

[0259] receiving the configuration information through a first message.

[0260] In some embodiments, the receiving the configuration information through a first message comprises:

[0261] receiving the configuration information through different first messages in cases that the terminal is in different states.

[0262] In some embodiments, the different terminal states comprise any one of:

[0263] idle state, inactive state, and connected state.

[0264] In some embodiments, the method further comprises:

[0265] suspending uplink service in cases that the TDM pattern is in uplink off-duration; and / or,

[0266] resuming the uplink service in cases that the TDM pattern is in uplink on-duration.

[0267] In some embodiments, the method further comprises:

[0268] suspend the downlink service in a case where the TDM mode is in a downlink-off period; and / or

[0269] resume the downlink service in a case where the TDM mode is in a downlink-on period.

[0270] In some embodiments, the method further includes:

[0271] performing uplink service in a case where the downlink signal quality or the uplink power meets a first condition, or

[0272] performing downlink service in a case where the downlink signal quality meets a second condition.

[0273] In some embodiments, the first condition includes at least one of:

[0274] a downlink reference signal received power (RSRP) of the TN cell is greater than a first threshold value;

[0275] a downlink reference signal received quality (RSRQ) of the TN cell is greater than a second threshold value;

[0276] a terminal uplink transmission power is less than a third threshold value.

[0277] In some embodiments, the second condition includes at least one of:

[0278] a downlink reference signal received power (RSRP) of the TN cell is greater than a fourth threshold value;

[0279] a downlink reference signal received quality (RSRQ) of the TN cell is greater than a fifth threshold value.

[0280] In some embodiments, the receiving the configuration information includes:

[0281] receiving the configuration information through a medium access control (MAC) control element (CE); or

[0282] receiving the configuration information through a physical downlink control channel (PDCCH).

[0283] Step S3201 and its optional implementation can be referred to the related part of the steps and its optional implementation of FIG. 2A, which will not be repeated here.

[0284] FIG. 4A is a flow diagram of an information transmission method according to an embodiment of the present disclosure. As shown in FIG. 4A, the embodiment of the present disclosure relates to an information transmission method, the method is performed by the network device 102, and the method includes:

[0285] Step S4101, receiving a second propagation delay sent by the NTN device.

[0286] At step S4102, the TDM mode is determined according to the second propagation delay and the first propagation delay of the TN.

[0287] At step S4103, configuration information indicating the TDM mode is sent to the terminal 101.

[0288] Optional implementation manners of steps S4101-S4103 can refer to optional implementation manners of steps S2101-S2103 of FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0289] The communication method related to the embodiments of the present disclosure can include at least one of steps S4101-S4103. For example, step S4101 can be implemented as an independent embodiment, steps S4101+S4102 can be implemented as an independent embodiment, steps S4101+S4103 can be implemented as an independent embodiment, and the like, but are not limited thereto.

[0290] In the present embodiment or the present example, each step can be independently combined or exchanged in order, and optional manners or optional examples can be combined, and can be combined with any step of other embodiments or other examples.

[0291] FIG. 4B is a flowchart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG. 4B, the present embodiment of the present disclosure relates to an information transmission method, the method is performed by the network device 102, and the method includes:

[0292] At step S4201, configuration information is sent, the configuration information indicating a TDM mode, the TDM mode being a TDM mode for multiplexing of an NTN and a TN, and the NTN network or the TN network being in an active state when the TDM is in an on duration

[0293] In some embodiments, the TDM mode is determined based on the first propagation delay of the TN and the second propagation delay of the NTN.

[0294] In some embodiments, the TDM mode includes an uplink TDM mode and a downlink TDM mode.

[0295] In some embodiments, the TDM mode includes at least one of:

[0296] a period of the uplink TDM mode, a duration of an on duration, an offset of a start time of the on duration, and a first duration of an early end of an active period;

[0297] a period of the downlink TDM mode, a duration of an on duration, an offset of a start time of the on duration, and a second duration of a delayed start of an active period;

[0298] a cycle and an on-duration duration of the uplink TDM pattern and the downlink TDM pattern;

[0299] a first offset of a starting moment of the on-duration of the uplink TDM pattern and a first duration of early ending of the active period;

[0300] a second offset of a starting moment of the on-duration of the downlink TDM pattern and a second duration of late starting of the active period;

[0301] a first offset value of the offset of the starting moment of the on-duration of the uplink TDM pattern relative to the offset of the starting moment of the on-duration of the downlink TDM pattern;

[0302] a second offset value of the offset of the starting moment of the on-duration of the downlink TDM pattern relative to the offset of the starting moment of the on-duration of the uplink TDM pattern.

[0303] In some embodiments, the sending the configuration information comprises:

[0304] sending the configuration information through a broadcast message; or,

[0305] sending the configuration information through a first message.

[0306] In some embodiments, the sending the configuration information through the first message comprises:

[0307] sending the configuration information through different first messages in cases that the terminal is in different states.

[0308] In some embodiments, the different terminal states comprise any one of:

[0309] an idle state, an inactive state, and a connected state.

[0310] In some embodiments, the sending the configuration information comprises:

[0311] sending the configuration information through a medium access control (MAC) control element (CE); or,

[0312] sending the configuration information through a physical downlink control channel (PDCCH).

[0313] In some embodiments, the method further comprises:

[0314] receiving the TDM pattern sent by a non-terrestrial network (NTN) device.

[0315] In some embodiments, the method further comprises:

[0316] receiving a second propagation delay sent by the NTN device.

[0317] According to the second propagation delay and the first propagation delay of the TN, a first length of an active period of the TN network is determined to end in advance, and a second length of a downlink active period is determined to start in delay.

[0318] The step S4201 and the optional implementation thereof can refer to the related part in the step and the optional implementation thereof in FIG. 2A, and details are not described herein.

[0319] FIG. 5 is an interaction diagram of an information transmission method according to an embodiment of the present disclosure. As shown in FIG. 5, the method according to the embodiment of the present disclosure is used in the communication system 100, and the method comprises the following steps:

[0320] In step S5101, the network device 102 sends configuration information to the terminal 101.

[0321] The configuration information indicates a time division multiplexing (TDM) mode, and the TDM mode is a TDM mode multiplexed for the non-terrestrial network (NTN) and the terrestrial network (TN). In the case that the TDM is in an on duration, the NTN network or the TN network is in an active state.

[0322] The optional implementation of the step S5101 can refer to the step and the related part thereof in the above-mentioned embodiment of FIG. 2A.

[0323] In the embodiment or the embodiment, each step can be independent, arbitrarily combined or exchanged in sequence, the optional mode or the optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other embodiments.

[0324] The information transmission method provided by the present disclosure is further described below in combination with the following embodiments.

[0325] The TN UE receives a TDM pattern configured by the TN cell, and the TN UE performs transmission and / or reception of the TN cell during an active period of the TDM pattern.

[0326] Optionally, the TDM pattern is a pattern for time division multiplexing of the TN network and the NTN network. During the TN network UL and / or DL active period, the NTN network stops receiving and / or transmitting. During the NTN network UL and / or DL active period, the TN network stops receiving and / or transmitting.

[0327] Optionally, the active period is an on duration period of the TDM pattern.

[0328] Optionally, during UL inactive, any TN uplink transmission is prohibited. During DL inactive, any TN downlink reception is prohibited.

[0329] Optionally, the TDM pattern includes TDM pattern configured for UL and DL respectively.

[0330] Optionally, the TDM pattern configured for UL and DL respectively includes one or more of the following:

[0331] Period of the TDM pattern configured for UL and DL respectively, on duration length, on duration offset;

[0332] On duration offset of the TDM pattern configured for UL and DL respectively, but sharing period and on duration length configuration.

[0333] Optionally, the unit of on duration offset / on duration length / period can be OFDM symbol / slot / subframe / millisecond / second, etc.

[0334] Optionally, the offset configuration value of one side of UL or DL can be offset value relative to the offset configuration value of the other side.

[0335] Optionally, the TDM pattern configuration is provided to TN base station by NTN base station through inter-base station interface or via core network.

[0336] Optionally, the TDM pattern is provided to UE through system broadcast message or dedicated signaling.

[0337] Optionally, for the TDM pattern provided to UE through system broadcast message, it is applicable to idle / inactive / connected UE.

[0338] Optionally, for the TDM pattern provided to UE through dedicated message, it can be applicable to connected UE only, or configured for idle / inactive state.

[0339] Optionally, the network can configure TDM pattern for connected state and idle / inactive state respectively. If the network provides TDM pattern for idle / inactive state through connection release message, it overrides the TDM pattern provided by system message.

[0340] Optionally, the NTN base station provides the NTN propagation delay information to the TN base station through an inter-base station interface or via a core network.

[0341] Optionally, the propagation delay information characterizes the propagation delay information from a UE to a base station or an uplink reference point within a coverage of the NTN.

[0342] Optionally, the coverage is one or more beam footprints of a satellite.

[0343] Optionally, the propagation delay information is a one-way propagation delay or a RTT. The propagation delay information is a maximum one-way propagation delay or a RTT, or a maximum one-way propagation delay difference or a round-trip delay difference within the coverage.

[0344] Optionally, during the UL TDM pattern inactive, the UE suspends all uplink operations. Upon entering the UL TDM pattern active, all suspended uplink operations are resumed.

[0345] Optionally, the uplink operations are one or more of RACH, SR, UL HARQ.

[0346] Optionally, during the DL TDM pattern inactive, the UE suspends all downlink operations. Upon entering the DL TDM pattern active, all suspended downlink operations are resumed.

[0347] Optionally, the downlink operations are one or more of PDCCH monitoring, DL HARQ, RLM / RLF, BFD / BFR, system message reception.

[0348] Optionally, for UL, if a downlink signal quality or an uplink power satisfies a certain condition, the UE can perform uplink transmission regardless of whether it is in the active period of the UL TDM pattern.

[0349] Optionally, the certain condition includes one or more of: a downlink RSRP and / or RSRQ of a TN cell is greater than a certain threshold; an uplink transmission power of the UE is less than a certain threshold.

[0350] Optionally, the threshold is configured by the network.

[0351] Optionally, for DL, if a downlink signal quality satisfies a certain condition, the UE can perform downlink reception regardless of whether it is in the active period of the DL TDM pattern.

[0352] Optionally, the certain condition comprises one or more of the following: the downlink RSRP and / or RSRQ of the TN cell is greater than a certain threshold.

[0353] Optionally, the threshold is configured by the network.

[0354] Embodiments of the present disclosure further provide a device for implementing any of the above methods, for example, a device comprising units or modules for implementing the steps performed by the terminal in any of the above methods. For another example, another device is provided, comprising units or modules for implementing the steps performed by the network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0355] It should be understood that the division of units or modules in the above device is only a logical function division, and all or part of them can be integrated into one physical entity or physically separated. In addition, the units or modules in the device can be implemented in the form of processor invoking software: for example, the device comprises a processor connected with a memory, the memory stores instructions, and the processor invokes the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules of the device, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be implemented by the design of hardware circuit, and the hardware circuit can be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are implemented by the design of logical relationship between elements in the circuit; for another example, in another implementation, the hardware circuit is a programmable logic device (PLD), and taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to implement the functions of part or all of the units or modules. All units or modules of the above device can be implemented in the form of processor invoking software, or all units or modules can be implemented in the form of hardware circuit, or part of the units or modules can be implemented in the form of processor invoking software, and the remaining part can be implemented in the form of hardware circuit.

[0356] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), and the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuits, and the logical relationship of the hardware circuits is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), and the like.

[0357] FIG. 6A is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 6A, the terminal 6100 can include at least one of a transceiver module 6101, a processing module 6102, and the like. In some embodiments, the transceiver module 6101 is configured to receive configuration information, and the configuration information indicates a time division multiplexing (TDM) mode, wherein the TDM mode is a TDM mode multiplexed for a non-terrestrial network (NTN) and a terrestrial network (TN), and wherein the NTN network or the TN network is in an active state when the TDM is in an on duration.

[0358] In some embodiments, the method further includes:

[0359] In some embodiments, the method further includes:

[0360] In some embodiments, the method further comprises: stopping receiving or sending data under a second condition, the second condition comprising that the NTN network is in an active state.

[0361] In some embodiments, the TDM pattern is determined based on a first propagation delay of the TN network and a second propagation delay of the NTN network.

[0362] In some embodiments, the TDM pattern comprises an uplink TDM pattern and a downlink TDM pattern.

[0363] In some embodiments, the TDM pattern comprises at least one of:

[0364] a cycle of the uplink TDM pattern, a duration of an on-duration, a start time offset of the on-duration, and a first duration of early ending of the active period;

[0365] a cycle of the downlink TDM pattern, a duration of an on-duration, a start time offset of the on-duration, and a second duration of late starting of the active period;

[0366] a cycle and a duration of an on-duration of the uplink and downlink TDM patterns;

[0367] a start time offset of the on-duration of the uplink TDM pattern and the first duration of early ending of the active period;

[0368] a start time offset of the on-duration of the downlink TDM pattern and the second duration of late starting of the active period;

[0369] a start time offset of the on-duration of the uplink TDM pattern, and a first offset value relative to a start time offset of the on-duration of the downlink TDM pattern;

[0370] a start time offset of the on-duration of the downlink TDM pattern, and a second offset value relative to a start time offset of the on-duration of the uplink TDM pattern.

[0371] In some embodiments, the transceiver 6101 is further configured to:

[0372] receive the configuration information through a broadcast message; or,

[0373] receive the configuration information through a first message.

[0374] In some embodiments, the transceiver 6101 is further configured to receive the configuration information through different first messages in cases where the terminal is in different states.

[0375] In some embodiments, the different terminal states comprise any one of:

[0376] Idle state, inactive state, and connected state.

[0377] In some embodiments, the processing module 6102 described above is further configured to:

[0378] suspend uplink service in the case that the TDM mode is in an uplink-off period; and / or,

[0379] resume uplink service in the case that the TDM mode is in an uplink-on period.

[0380] In some embodiments, the processing module 6102 described above is further configured to:

[0381] suspend downlink service in the case that the TDM mode is in a downlink-off period; and / or,

[0382] resume downlink service in the case that the TDM mode is in a downlink-on period.

[0383] In some embodiments, the processing module 6102 described above is further configured to:

[0384] execute uplink service in the case that the downlink signal quality or the uplink power meets a first condition, or,

[0385] execute downlink service in the case that the downlink signal quality meets a second condition.

[0386] In some embodiments, the first condition comprises at least one of:

[0387] a downlink reference signal received power (RSRP) of the TN cell is greater than a first threshold value;

[0388] a downlink reference signal received quality (RSRQ) of the TN cell is greater than a second threshold value;

[0389] an uplink transmit power of the terminal is less than a third threshold value.

[0390] In some embodiments, the second condition comprises at least one of:

[0391] a downlink reference signal received power (RSRP) of the TN cell is greater than a fourth threshold value;

[0392] a downlink reference signal received quality (RSRQ) of the TN cell is greater than a fifth threshold value.

[0393] In some embodiments, the transceiver module 6101 described above is further configured to:

[0394] receive the configuration information through a medium access control (MAC) control element (CE); or,

[0395] receive the configuration information through a physical downlink control channel (PDCCH).

[0396] Optionally, the transceiver module is configured to perform at least one of the communication steps (e.g., transmitting and / or receiving) performed by the terminal in any of the above methods.

[0397] Optionally, the processing module is configured to perform at least one of the other steps (e.g., steps S2101 and S2103, but not limited thereto) performed by the terminal in any of the above methods.

[0398] FIG. 6B is a structural schematic diagram of a network device according to an embodiment of the present disclosure. As shown in FIG. 6B, the network device 6200 can include at least one of a transceiver module 6201, a processing module 6202, and the like. In some embodiments, the transceiver module 6201 is configured to transmit configuration information, the configuration information indicating a time division multiplexing (TDM) mode, the TDM mode being a TDM mode multiplexed for a non-terrestrial network (NTN) and a terrestrial network (TN), wherein the NTN network or the TN network is in an active state in an on duration of the TDM.

[0399] In some embodiments, the TDM mode is determined based on a first propagation delay of the TN and a second propagation delay of the NTN.

[0400] In some embodiments, the TDM mode includes an uplink TDM mode and a downlink TDM mode.

[0401] In some embodiments, the TDM mode includes at least one of:

[0402] a period of the uplink TDM mode, a duration of the on duration, an offset of a start time of the on duration, and a first duration of an early end of the active period;

[0403] a period of the downlink TDM mode, a duration of the on duration, an offset of a start time of the on duration, and a second duration of a delayed start of the active period;

[0404] a period of the uplink and downlink TDM modes and a duration of the on duration;

[0405] an offset of a start time of the on duration of the uplink TDM mode and the first duration of the early end of the active period;

[0406] an offset of a start time of the on duration of the downlink TDM mode and the second duration of the delayed start of the active period;

[0407] an offset of a start time of the on duration of the uplink TDM mode and a first offset value of an offset of a start time of the on duration of the downlink TDM mode;

[0408] A second offset value of an offset of a starting moment of an on period of the downlink TDM pattern relative to an offset of a starting moment of an on period of the uplink TDM pattern.

[0409] In some embodiments, the transceiver 6201 is further configured to:

[0410] The configuration information is transmitted through a broadcast message; or

[0411] The configuration information is transmitted through a first message.

[0412] In some embodiments, the transceiver 6201 is further configured to transmit the configuration information through different first messages in different terminal states.

[0413] In some embodiments, the different terminal states include any one of the following: an idle state, an inactive state, and a connected state.

[0414] In some embodiments, the transceiver 6201 is further configured to:

[0415] The TDM pattern is transmitted through a medium access control (MAC) control element (CE); or

[0416] The TDM pattern is transmitted through a physical downlink control channel (PDCCH).

[0417] In some embodiments, the transceiver 6201 is further configured to receive the TDM pattern transmitted by a non-terrestrial network (NTN) device.

[0418] In some embodiments, the transceiver 6201 is further configured to receive a second propagation delay transmitted by the NTN device.

[0419] The processing module 6202 is further configured to determine, according to the second propagation delay and a first propagation delay of the TN, a first time length of an early end of an uplink active period of the TN network and a second time length of a delayed start of a downlink active period.

[0420] Optionally, the transceiver is configured to perform at least one of the communication steps of transmitting and / or receiving performed by the network device in any one of the above methods, which will not be described herein.

[0421] Optionally, the processing module is configured to perform at least one of the other steps performed by the network device in any one of the above methods, which will not be described herein.

[0422] In some embodiments, the transceiver can include a transmitting module and / or a receiving module, which can be separate or integrated together. Optionally, the transceiver can be mutually replaced with a transceiver.

[0423] In some embodiments, the processing module can be one module, or can include multiple sub-modules. Optionally, the multiple sub-modules perform all or part of the steps required to be performed by the processing module, respectively. Optionally, the processing module can be mutually replaced with the processor.

[0424] FIG. 7A is a structural schematic diagram of a communication device according to an embodiment of the present disclosure. The communication device 7100 can be a network device (such as an access network device, a core network device, etc.), a terminal (such as a user equipment, etc.), a chip, a chip system, or a processor supporting the network device to implement any of the above methods, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 7100 can be used to implement the methods described in the above method embodiments, and details can be referred to the descriptions in the above method embodiments.

[0425] As shown in FIG. 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a special-purpose processor, etc., such as a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. The communication device 7100 is used to implement any of the above methods.

[0426] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memory 7102 can also be outside the communication device 7100.

[0427] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceiver 7103 performs at least one of the communication steps such as transmitting and / or receiving in the above methods, and the processor 7101 performs at least one of the other steps.

[0428] In some embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms of transceiver, transceiving unit, transceiver, transceiving circuit, etc. can be mutually replaced, the terms of transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be mutually replaced, and the terms of receiver, receiving unit, receiver, receiving circuit, etc. can be mutually replaced.

[0429] In some embodiments, the communication device 7100 can include one or more interface circuits 7104. Optionally, the interface circuits 7104 are connected to the memory 7102, and are configured to receive signals from the memory 7102 or other devices, and to send signals to the memory 7102 or other devices. For example, the interface circuits 7104 can read instructions stored in the memory 7102 and transmit the instructions to the processor 7101.

[0430] The communication device 7100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 can not be limited by FIG. 7A. The communication device can be a standalone device or can be part of a larger device. For example, the above communication device can be: (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally also include storage components for storing data, programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, and the like; (6) other devices, and the like.

[0431] FIG. 7B is a structural diagram of a chip according to an embodiment of the present disclosure. For the case where the communication device 7100 is a chip or a chip system, the structure of the chip 7200 shown in FIG. 7B can be referred to, but is not limited thereto.

[0432] The chip 7200 includes one or more processors 7201, and the chip 7200 is configured to execute any of the above methods.

[0433] In some embodiments, the chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuits 7202 are connected to the memory 7203, and the interface circuits 7202 can be configured to receive signals from the memory 7203 or other devices, and to send signals to the memory 7203 or other devices. For example, the interface circuits 7202 can read instructions stored in the memory 7203 and transmit the instructions to the processor 7201.

[0434] In some embodiments, the interface circuits 7202 perform at least one of the communication steps such as transmitting and / or receiving in the above methods, and the processor 7201 performs at least one of the other steps.

[0435] In some embodiments, the terms interface circuit, interface, transceiver pin, and transceiver can be replaced with each other.

[0436] In some embodiments, chip 7200 also includes one or more memories 7203 for storing instructions. Optionally, all or some of the memories 7203 can be external to chip 7200.

[0437] The disclosure also provides a storage medium having stored thereon instructions which, when executed by a communication device 7100, cause the communication device 7100 to perform any of the methods described above. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but this is not a requirement. Optionally, the storage medium can be a non-transitory storage medium, but this is not a requirement.

[0438] The disclosure also provides a program product which, when executed by a communication device 7100, causes the communication device 7100 to perform any of the methods described above. Optionally, the program product is a computer program product.

[0439] The disclosure also provides a computer program which, when executed on a computer, causes the computer to perform any of the methods described above.

[0440] In the embodiments described above, all or some of the steps can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or some of the steps can be implemented by one or more computer program products. When the computer program products are loaded into and executed by a computer, all or some of the steps described above are performed. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus capable of running a computer program. The computer program can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, such as from a website, a computer, a server or a data center, through a wired (such as a coaxial cable, an optical fiber, a digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium or a set of medium that is accessible by a computer or a data storage device such as a server, a data center, etc. that includes one or more of the available media. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a compact disk (CD), a digital video disk (DVD)), or a semiconductor medium (such as a solid state disk (SSD)), etc.

[0441] Those skilled in the art can clearly understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software manner depends on the specific application and design constraints of the technical solution. The skilled person can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the disclosure.

[0442] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0443] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the above claims.

Claims

1. A method of information transmission, characterized in that, The method is performed by a terminal, and the method comprises: receiving configuration information, the configuration information indicating a time division multiplexing (TDM) mode, the TDM mode being a TDM mode multiplexed for a non-terrestrial network (NTN) and a terrestrial network (TN), wherein, in a case that the TDM is in an on duration, the NTN network or the TN network is in an active state.

2. The method of claim 1, wherein, The method further comprises: in a case that a first condition is met, receiving or sending data, the first condition comprising that a TN accessed by the terminal is in an active state and an NTN accessed is in an inactive state, and a frequency band available to the TN network is at least partially the same as a frequency band available to the NTN network.

3. The method of claim 1 or 2, wherein, The method further comprises: in a case that a second condition is met, stopping receiving or sending data, the second condition comprising that the NTN network is in an active state.

4. The method of any one of claims 1-3, wherein, The TDM mode is determined based on a first propagation delay of the TN network and a second propagation delay of the NTN network.

5. The method of claim 1, wherein, The TDM mode comprises an uplink TDM mode and a downlink TDM mode.

6. The method of any one of claims 3-5, wherein, The TDM mode comprises at least one of: a period of the uplink TDM mode, a duration of the on duration, a start time offset of the on duration, and a first time length of an early end of the active period; a period of the downlink TDM mode, a duration of the on duration, a start time offset of the on duration, and a second time length of a delayed start of the active period; a period and a duration of the on duration of the uplink and downlink TDM modes; a start time offset of the on duration of the uplink TDM mode and the first time length of the early end of the active period; a start time offset of the on duration of the downlink TDM mode and the second time length of the delayed start of the active period; a start time offset of the on duration of the uplink TDM mode and a first offset value of the start time offset of the on duration of the downlink TDM mode; a start time offset of the on duration of the downlink TDM mode and a second offset value of the start time offset of the on duration of the uplink TDM mode.

7. The method of any one of claims 3-6, wherein, The configuration information comprises: receiving the configuration information through a broadcast message; or receiving the configuration information through a first message.

8. The method of claim 7, wherein, The receiving the configuration information through the first message comprises: in a case that the terminal is in different states, receiving the configuration information through different first messages.

9. The method of claim 8, wherein, The states of the terminal comprise any one of: an idle state, an inactive state, and a connected state.

10. The method of any one of claims 3-9, wherein, The method further comprises: in a case that the TDM mode is in an uplink off duration, suspending uplink services; and / or in a case that the TDM mode is in an uplink on duration, resuming the uplink services.

11. The method of any one of claims 3-10, wherein, The method further comprises: in a case that the TDM mode is in a downlink off duration, suspending downlink services; and / or in a case that the TDM mode is in a downlink on duration, resuming the downlink services.

12. The method of any one of claims 1-11, wherein, The method further comprises: in a case that a first condition is met, performing uplink services, or in a case that a second condition is met, performing downlink services.

13. The method of claim 12, wherein, The first condition comprises at least one of: a downlink reference signal received power (RSRP) of a TN cell being greater than a first threshold value; A downlink reference signal received quality (RSRQ) of the TN cell is greater than a second threshold value; An uplink transmit power of the terminal is less than a third threshold value.

14. The method of claim 13, wherein, The second condition comprises at least one of: A downlink reference signal received power (RSRP) of the TN cell is greater than a fourth threshold value; A downlink reference signal received quality (RSRQ) of the TN cell is greater than a fifth threshold value.

15. The method of any one of claims 1-14, wherein, The receiving configuration information comprises: The configuration information is received through a medium access control (MAC) control element (CE); or The configuration information is received through a physical downlink control channel (PDCCH).

16. An information transmission method, characterized by, The method is performed by a network device, and the method comprises: Sending configuration information, the configuration information indicating a time division multiplexing (TDM) mode, the TDM mode being a TDM mode multiplexed for a non-terrestrial network (NTN) and a terrestrial network (TN), wherein, in a case that the TDM is in an on duration, the NTN network or the TN network is in an active state.

17. The method of claim 16, wherein, The TDM mode is determined based on a first propagation delay of the TN and a second propagation delay of the NTN.

18. The method of claim 16 or 17, wherein, The TDM mode comprises an uplink TDM mode and a downlink TDM mode.

19. The method of any one of claims 16-18, wherein, The TDM mode comprises at least one of: A period of the uplink TDM mode, a duration of the on duration, a starting time offset of the on duration, and a first duration of an early end of the active period; A period of the downlink TDM mode, a duration of the on duration, a starting time offset of the on duration, and a second duration of a delayed start of the active period; A period and a duration of the on duration of the uplink and downlink TDM modes; The starting time offset of the on duration of the uplink TDM mode and the first duration of the early end of the active period; The starting time offset of the on duration of the downlink TDM mode and the second duration of the delayed start of the active period; The starting time offset of the on duration of the uplink TDM mode and a first offset value of the starting time offset of the on duration of the downlink TDM mode; The starting time offset of the on duration of the downlink TDM mode and a second offset value of the starting time offset of the on duration of the uplink TDM mode.

20. The method of any one of claims 16-19, wherein, The sending configuration information comprises: The configuration information is sent through a broadcast message; or The configuration information is sent through a first message.

21. The method of claim 20, wherein, The sending configuration information through the first message comprises: In a case that the terminal is in different states, the configuration information is sent through different first messages.

22. The method of claim 20, wherein, The state of the terminal comprises any one of: An idle state, an inactive state, and a connected state.

23. The method of any one of claims 16-22, wherein, The sending configuration information mode comprises: The configuration information is sent through a medium access control (MAC) control element (CE); or The configuration information is sent through a physical downlink control channel (PDCCH).

24. The method of any one of claims 16-23, wherein, The method further comprises: Receiving the TDM mode sent by an NTN device.

25. The method of any one of claims 16-24, wherein, The method further comprises: Receiving a second propagation delay sent by the NTN device; Determining, according to the second propagation delay and a first propagation delay of the TN network, a first duration of an early end of an uplink active period of the TN network and a second duration of a delayed start of a downlink active period of the TN network.

26. A terminal, characterized by The terminal comprises: The processing module is configured to receive configuration information, the configuration information indicating a time division multiplexing (TDM) mode, the TDM mode being a TDM mode multiplexed for the NTN network and a TN network, wherein the NTN network or the TN network is in an active state when the TDM is in an on duration.

27. A network device, comprising: The network device comprises: The transceiving module is configured to send configuration information, the configuration information indicating a time division multiplexing (TDM) mode, the TDM mode being a TDM mode multiplexed for the NTN network and a TN network, wherein the NTN network or the TN network is in an active state when the TDM is in an on duration.

28. A communications device, characterized by The communication apparatus comprises: One or more processors; The terminal is configured to perform the information transmission method in any one of claims 1-15, or perform the information transmission method in any one of claims 16-25.

29. A communication system, characterized by The terminal and the network device are included, wherein the terminal is configured to implement the model training method in any one of claims 1-15, and the network device is configured to implement the information transmission method in any one of claims 16-25.

30. A storage medium, the storage medium storing instructions, wherein, When the instructions run on the communication device, the communication device is caused to perform the information transmission method in any one of claims 1-15 or 16-25.

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