Method for receiving information, method for sending information, and terminals, apparatuses, system and storage medium

Abstract

The present disclosure relates to a method for receiving information, a method for sending information, and terminals, apparatuses, a system and a storage medium. The method for receiving information comprises: receiving in a first cell first information sent by a network device, wherein the first information is used for indicating wake-up information of the network device when a second cell is in an energy-saving state. In the method in the present disclosure, a terminal can learn, on the basis of first information received thereby in a first cell, wake-up information indicated by a network network and corresponding to a second cell, such that when the second cell is in an energy-saving state, the terminal can wake up the network device in a timely manner on the basis of the first information, thereby ensuring communication.

Description

Method, terminal, device, system and storage medium for receiving and sending information Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a method, terminal, device, system, and storage medium for receiving and sending information. Background Art

[0002] In network energy saving (NES), network devices can achieve energy conservation by aperiodically transmitting channels or signals, or reducing the frequency of periodic transmissions. In non-terrestrial networks (NTNs), the uplink transmission method of terminals differs from that in terrestrial networks. The impact of NES on terminals in NTN scenarios needs to be explored.

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide a method, terminal, device, system, and storage medium for receiving and sending information.

[0005] In a first aspect, an embodiment of the present disclosure provides a method for receiving information, the method comprising:

[0006] First information sent by a network device is received in a first cell, where the first information is used to indicate wake-up information of the network device when the second cell is in an energy-saving state.

[0007] In a second aspect, an embodiment of the present disclosure provides a method for sending information, performed by a network device, the method comprising:

[0008] First information is sent to the terminal in the first cell, where the first information is used to indicate wake-up information of the network device when the second cell is in an energy-saving state.

[0009] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0010] The transceiver module is used to receive first information sent by a network device in a first cell, where the first information is used to indicate wake-up information of the network device when the second cell is in an energy-saving state.

[0011] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0012] The transceiver module is used to send first information to the terminal in the first cell, where the first information is used to indicate wake-up information of the network device when the second cell is in an energy-saving state.

[0013] In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

[0014] one or more processors;

[0015] The terminal is used to execute the method described in the first aspect.

[0016] In a sixth aspect, an embodiment of the present disclosure provides a network device, including:

[0017] one or more processors;

[0018] The network device is used to execute the method described in the second aspect.

[0019] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0020] The terminal is configured to implement the method according to the first aspect;

[0021] The network device is configured to implement the method described in the second aspect.

[0022] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0023] When the instruction is executed on a communication device, the communication device is caused to execute the method according to the first aspect or the second aspect.

[0024] In an embodiment of the present disclosure, the terminal can obtain the wake-up information corresponding to the second cell indicated by the network device based on the first information received in the first cell, so that when the network device is in an energy-saving state in the second cell, the terminal can wake up in time based on the first information to ensure communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0026] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0027] FIG2a is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0028] FIG2 b is a schematic diagram of different beam coverage areas provided according to an embodiment of the present disclosure;

[0029] FIG2c is a schematic diagram of monitoring SI provided according to an embodiment of the present disclosure;

[0030] 3a to 3b are exemplary flowcharts of a method according to an embodiment of the present disclosure;

[0031] 4a and 4b are exemplary flowcharts of a method according to an embodiment of the present disclosure;

[0032] FIG5a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

[0033] FIG5b is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

[0034] FIG6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0035] FIG6 b is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] Embodiments of the present disclosure provide a method, terminal, device, system, and storage medium for receiving and sending information.

[0037] In a first aspect, an embodiment of the present disclosure provides a method for receiving information, the method comprising:

[0038] First information sent by a network device is received in a first cell, where the first information is used to indicate wake-up information of the network device when the second cell is in an energy-saving state.

[0039] In the above embodiment, the terminal can obtain the wake-up information corresponding to the second cell indicated by the network device based on the first information received in the first cell, so that when the network device is in the energy-saving state in the second cell, the terminal can wake up in time based on the first information to ensure communication.

[0040] In conjunction with the embodiments of the first aspect, in some embodiments, the wake-up information includes at least one of the following:

[0041] Wake-up signal (WUS) configuration information corresponding to the second cell;

[0042] Auxiliary information for uplink synchronization corresponding to the second cell.

[0043] In the above embodiment, the terminal may perform uplink synchronization based on the auxiliary information, and after uplink synchronization, send WUS based on the WUS configuration information to wake up the network device in the energy-saving state in time, thereby improving communication efficiency.

[0044] In combination with the embodiments of the first aspect, in some embodiments, the first information is first radio resource control (Radio Resource Control) information, and the first RRC information includes WUS configuration information and auxiliary information corresponding to the second cell.

[0045] In the above embodiment, the WUS configuration information and the auxiliary information may be sent via the same RRC message. By receiving the first RRC message, the terminal may obtain relevant wake-up information corresponding to the second cell, thereby improving wake-up efficiency.

[0046] In combination with the embodiments of the first aspect, in some embodiments, the first RRC information includes a cell identifier of the second cell.

[0047] In the above embodiment, the WUS configuration information can be bound to the second cell in the auxiliary information field through the cell identifier, so that the terminal can locate the required wake-up information based on the cell identifier.

[0048] In combination with the embodiments of the first aspect, in some embodiments, the auxiliary information corresponding to the second cell is the same as the auxiliary information corresponding to the first cell, wherein the field corresponding to the auxiliary information is empty.

[0049] In the above embodiment, if the field of the auxiliary information corresponding to the second cell is empty, the terminal may assume that the auxiliary information corresponding to the second cell is the same as the auxiliary information corresponding to the first cell, which is conducive to saving signaling resources.

[0050] In combination with the embodiments of the first aspect, in some embodiments, the first information is scheduling information, and the scheduling information is used to schedule a physical downlink shared channel (PDSCH) containing wake-up information.

[0051] In the above embodiment, the terminal may receive or obtain the wake-up information at a suitable location of the first cell based on the scheduling information, so as to wake up the second cell in the NES state in time based on the wake-up information.

[0052] In combination with the embodiments of the first aspect, in some embodiments, the first information is indication information, the indication information is used to instruct the terminal to receive scheduling information on the second cell, and the scheduling information is used to schedule the PDSCH containing the wake-up information.

[0053] In the above embodiment, the terminal monitors the scheduling information on the second cell based on the indication information to obtain the wake-up information, so that the second cell in the NES state can be woken up in time.

[0054] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0055] receiving, in the second cell, auxiliary information for uplink synchronization sent by a network device;

[0056] The wake-up information only includes the WUS configuration information corresponding to the second cell, and the auxiliary information is sent by the network device before entering the energy-saving state on the second cell.

[0057] In the above embodiment, the WUS configuration information and the auxiliary information are sent separately. The terminal obtains the WUS configuration information on the first cell and obtains the auxiliary information on the second cell. The terminal can wake up the second cell in the NES state in time based on the two pieces of information.

[0058] In combination with the embodiments of the first aspect, in some embodiments, the terminal maintains valid wake-up information.

[0059] In the above embodiment, the terminal does not want to receive invalid wake-up information, or expects the network device to send valid wake-up information in time, so as to ensure that the terminal can always wake up the second cell in the NES state based on the valid wake-up information.

[0060] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0061] Second information is sent to the network device in the first cell, where the second information is used to request the first information.

[0062] In the above embodiment, the terminal may request the first information from the network device by sending the second information, so as to obtain the wake-up information used to wake up the second cell.

[0063] In conjunction with the embodiments of the first aspect, in some embodiments, the second information is one of the following:

[0064] Second RRC information;

[0065] Uplink Control Information (UCI);

[0066] Media Access Control Control Element (MAC CE).

[0067] In the above embodiment, the terminal may request the first information from the network device through different signaling to improve the flexibility of the terminal in obtaining the wake-up information.

[0068] In combination with the embodiments of the first aspect, in some embodiments, the first information is terminal-specific signaling or a broadcast message.

[0069] In the above embodiment, the first information received by the terminal may be sent by the network device through dedicated signaling or a broadcast message, so that the terminal can obtain the required wake-up information.

[0070] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0071] Send WUS based on the wake-up information and the beam measurement results of the second cell.

[0072] In the above embodiment, the terminal sends the WUS based on a suitable beam according to the wake-up information, so that in the process of waking up the network device, it can be ensured that the network device can accurately receive the WUS.

[0073] In conjunction with the embodiments of the first aspect, in some embodiments, the auxiliary information includes at least one of the following:

[0074] Satellite ephemeris data;

[0075] Common timing advance compensation TA parameter information (Common TA parameters);

[0076] Epoch time when public TA parameter information and satellite ephemeris information take effect;

[0077] Validity duration of public TA parameter information and satellite ephemeris information (ntn-UlSyncValidityDuration);

[0078] Polarization information.

[0079] In the above embodiment, the terminal performs uplink compensation and synchronization based on the auxiliary information, so as to reasonably send an uplink signal such as WUS, and ensure that the network device can accurately receive the WUS.

[0080] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0081] The capability information is sent to the network device in the first cell, where the capability information indicates whether the terminal supports obtaining the wake-up information or whether the terminal supports waking up a network device in an energy-saving state in the second cell. Alternatively, the capability information indicates whether the terminal supports sending a WUS.

[0082] In a second aspect, an embodiment of the present disclosure provides a method for sending information, performed by a network device, the method comprising:

[0083] First information is sent to the terminal in the first cell, where the first information is used to indicate wake-up information of the network device when the second cell is in an energy-saving state.

[0084] In conjunction with the embodiments of the second aspect, in some embodiments, the wake-up information includes at least one of the following:

[0085] WUS configuration information corresponding to the second cell;

[0086] Auxiliary information for uplink synchronization corresponding to the second cell.

[0087] In combination with the embodiments of the second aspect, in some embodiments, the first information is first RRC information, and the first RRC information includes WUS configuration information and auxiliary information corresponding to the second cell.

[0088] In combination with the embodiments of the second aspect, in some embodiments, the first RRC information includes a cell identifier of the second cell.

[0089] In combination with the embodiments of the second aspect, in some embodiments, the auxiliary information corresponding to the second cell is the same as the auxiliary information corresponding to the first cell, wherein the field corresponding to the auxiliary information is empty.

[0090] In combination with the embodiments of the second aspect, in some embodiments, the first information is scheduling information, and the scheduling information is used to schedule the PDSCH containing the wake-up information.

[0091] In combination with the embodiments of the second aspect, in some embodiments, the first information is indication information, the indication information is used to instruct the terminal to receive scheduling information on the second cell, and the scheduling information is used to schedule the PDSCH containing the wake-up information.

[0092] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0093] Sending auxiliary information for uplink synchronization to the terminal in the second cell;

[0094] The wake-up information only includes the WUS configuration information corresponding to the second cell, and the auxiliary information is sent by the network device before entering the energy-saving state on the second cell.

[0095] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0096] The second information sent by the terminal in the first cell is received, where the second information is used to request the first information.

[0097] In conjunction with the embodiments of the second aspect, in some embodiments, the second information is one of the following:

[0098] Second RRC information;

[0099] UCI;

[0100] MAC CE.

[0101] In combination with the embodiments of the second aspect, in some embodiments, the first information is terminal-specific signaling or a broadcast message.

[0102] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0103] Receive the WUS sent by the terminal.

[0104] In conjunction with the embodiments of the second aspect, in some embodiments, the auxiliary information includes at least one of the following:

[0105] Satellite ephemeris information;

[0106] Common timing advance compensation TA parameter information;

[0107] The effective start time of public TA parameter information and satellite ephemeris information;

[0108] Validity period of public TA parameter information and satellite ephemeris information;

[0109] Polarization information. In conjunction with the embodiment of the second aspect, in some embodiments, when the network device is in an energy-saving state, it stops sending at least one of the following:

[0110] Periodic System Information Block 1 (SIB1);

[0111] Periodic other SIBs;

[0112] Periodic Channel State Information Resource Signal (CSI-RS);

[0113] Semi-static CSI-RS.

[0114] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0115] Capability information sent by the terminal is received in the first cell, where the capability information is used to indicate whether the terminal supports obtaining the wake-up information, or whether the terminal supports waking up a network device in a power-saving state in the second cell.

[0116] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0117] The transceiver module is used to receive first information sent by a network device in a first cell, where the first information is used to indicate wake-up information of the network device when the second cell is in an energy-saving state.

[0118] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0119] The transceiver module is used to send first information to the terminal in the first cell, where the first information is used to indicate wake-up information of the network device when the second cell is in an energy-saving state.

[0120] In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

[0121] one or more processors;

[0122] The terminal is used to execute the method described in the first aspect.

[0123] In a sixth aspect, an embodiment of the present disclosure provides a network device, including:

[0124] one or more processors;

[0125] The network device is used to execute the method described in the second aspect.

[0126] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0127] The terminal is configured to implement the method according to the first aspect;

[0128] The network device is configured to implement the method described in the second aspect.

[0129] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0130] When the instruction is executed on a communication device, the communication device is caused to execute the method according to the first aspect or the second aspect.

[0131] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0132] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0133] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0134] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0135] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0136] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0137] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0138] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0139] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0140] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0141] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0142] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0143] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0144] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0145] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0146] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0147] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0148] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0149] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0150] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0151] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0152] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0153] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0154] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0155] As shown in FIG1 , a communication system 100 may be an NTN system, and the communication system 100 may include a terminal 101 , a ground base station 102 , and a satellite base station (or simply satellite) 103 .

[0156] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, 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 a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0157] In some embodiments, the ground base station 102 may be an access network device for connecting to a core network device.

[0158] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0159] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0160] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0161] In some embodiments, a core network device may be a single device comprising one or more network elements, or may be a plurality of devices or a group of devices, each comprising all or part of one or more network elements. A network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0162] In some embodiments, the satellite base station 103 may also be referred to as a satellite, and the satellite 103 may be a satellite with different orbits, altitudes, and coverage ranges.

[0163] In some embodiments, in an NTN, terminal 101 can connect to ground base station 102 via satellite 103. Ground base station 102 transmits wireless resources to terminal 101 via satellite 103. For example, satellite 103 transmits signals in transparent transmission mode. The link between terminal 101 and satellite 103 is a service link, and the link between satellite 103 and ground base station 102 is a feeder link.

[0164] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0165] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG. 1 , or a part of the main body thereof, but are not limited thereto.

[0166] The entities shown in Figure 1 are examples. The communication system may include all or part of the entities in Figure 1, and may also include other entities outside of Figure 1. The number and form of the entities are arbitrary. The connection relationship between the entities is an example. The entities may be connected or disconnected, and the connection may be in any manner, which may be direct or indirect, and may be wired or wireless.

[0167] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0168] In the disclosed embodiments, in an NTN system, unlike a terrestrial network, if terminal 101 lacks valid uplink synchronization assistance information, it will be unable to perform uplink time and frequency synchronization. However, in an NTN, terminal 101 must perform uplink compensation before sending uplink signals. Therefore, terminal 101 cannot perform uplink synchronization based on valid assistance information, nor can it accurately send uplink signals such as WUS. Therefore, when network devices are in an energy-saving state (also known as an NES state), the issue of how terminals can wake up network devices needs to be addressed. Furthermore, for NTN WUS configuration, time and frequency domain compensation are important considerations.

[0169] FIG2a is an interactive diagram of a method for receiving and sending information according to an embodiment of the present disclosure. As shown in FIG2a, a method for receiving and sending information according to an embodiment of the present disclosure includes:

[0170] Step S2101: Terminal 101 sends second information to a network device in a first cell.

[0171] Optionally, the second information may be request information for requesting the first information, wherein the first information is used to indicate wake-up information of the network device when the second cell is in the NES state.

[0172] Optionally, the network device may be a ground base station 102 or a satellite base station 103 .

[0173] In some embodiments, the first cell (cell#1) may also be understood as a first carrier, and the second cell (cell#2) may also be understood as a second carrier. The first cell and the second cell may be a frequency combination that complies with carrier aggregation (CA).

[0174] Optionally, when the network device is in the NES state in the second cell, it may be in the normal state or the non-NES state in the first cell. In other words, the network device enters the NES state on a cell or carrier basis, being in the NES state in some cells or carriers and being in the normal state in other cells or carriers.

[0175] Optionally, when the network device is in a normal state or a non-energy-saving state, signals are sent as configured, such as periodically sending SIB1. If the network device enters the NES state, some periodically sent signals may no longer be sent periodically. For example, SIB1 may be sent on-demand, that is, only when there is a demand from terminal 101.

[0176] In one example, when the network device is in the NES state, it stops sending at least one of the following: periodic SIB1, periodic other SIBs, periodic CSI-RS, and semi-static CSI-RS. Optionally, if the network device leaves the NES state or transitions to the normal state, it will continue to send the above signals as configured.

[0177] In some embodiments, the wake-up information includes at least one of the following:

[0178] WUS configuration information corresponding to the second cell;

[0179] Auxiliary information for uplink synchronization corresponding to the second cell (or called uplink synchronization auxiliary information).

[0180] Optionally, the WUS configuration information may include at least one of the following: a transmission time-frequency position of the WUS signal, a WUS signal type, and a WUS signal format. The WUS signal type may, for example, include: a WUS transmitted via a physical random access channel (PRACH) or a WUS transmitted via a physical uplink control channel (PUCCH). The WUS signal format may, for example, be: PUCCH format x.

[0181] Optionally, the WUS signal may be PRACH, PUCCH or a group of special sequences.

[0182] Optionally, the auxiliary information includes at least one of the following:

[0183] Satellite ephemeris information;

[0184] Common TA parameter information;

[0185] The effective start time of public TA parameter information and satellite ephemeris information;

[0186] Validity period of public TA parameter information and satellite ephemeris information;

[0187] Polarization information.

[0188] The Common TA parameter information may include common TA, common TA first-order change rate (common TA drift), and common TA second-order change rate (common TA drift variation). Common TA information is used to pre-compensate for two-way transmission delay between the uplink time synchronization reference point and the satellite.

[0189] The validity duration of the satellite ephemeris information and / or Common TA information may be indicated by the validity duration (ntn-UlSyncValidityDuration), and the validity start time of the satellite ephemeris information and / or Common TA information may be indicated by the Epoch time.

[0190] The polarization information includes an uplink polarization direction and / or a downlink polarization direction.

[0191] In some optional examples, the auxiliary information also includes an offset constant used for uplink synchronization, such as Koffset and / or Kmac.

[0192] Optionally, the validity of the assistance information may be determined based on the following method: whether a timer corresponding to the assistance information has timed out. If so, the assistance information is invalid; if not, the assistance information is valid. The timer is used to indicate the validity period of the assistance information. For example, the timer corresponding to the assistance information may include a timer corresponding to ntn-UlSyncValidityDuration.

[0193] In some embodiments, the terminal 101 may send request information via different signaling to request assistance information and / or WUS configuration information.

[0194] Optionally, the second information is one of the following:

[0195] Second RRC information;

[0196] UCI;

[0197] MAC CE.

[0198] In one example, the terminal 101 sends second information to the network device in cell#1 to request to obtain auxiliary information corresponding to cell#2.

[0199] In this example, terminal 101 may send the second information via a second RRC message. For example, terminal 101 may request the auxiliary information corresponding to cell#2 from the network device via a system information (SI) request message or an auxiliary information request. Upon receiving the request, the network device may send the auxiliary information via a SIB19 message.

[0200] In this example, the terminal 101 may also send the second information to the network device via UCI. For example, the terminal 101 requests the network device for the auxiliary information corresponding to cell#2 via a scheduling request message.

[0201] In this example, the terminal 101 may also send the second information to the network device via a MAC CE message. For example, the terminal 101 sends an auxiliary information request message (request MAC CE) to request the network device for the auxiliary information corresponding to cell#2.

[0202] In some embodiments, step S2101 may be omitted, for example, the network device may proactively send the first information.

[0203] In some embodiments, the network device receives the second information to obtain the wake-up information requested by the terminal 101.

[0204] Step S2102: The network device sends first information to the terminal 101 in the first cell.

[0205] Optionally, referring to the description of the above embodiment, the first information is used to indicate the wake-up information of the network device when the second cell is in the energy-saving state. The wake-up information may include WUS configuration information corresponding to the second cell and / or auxiliary information for uplink synchronization.

[0206] Optionally, terminal 101 receives the first information.

[0207] In some embodiments, the network device may proactively send the first information, or may send the first information based on a request from the terminal 101 such as the second information.

[0208] Optionally, the first information is terminal-dedicated (UE-dedicated) signaling or a broadcast message.

[0209] For example, in an embodiment in which the first information is sent based on a request from terminal 101, after receiving the second information from terminal 101, the network device sends the auxiliary information corresponding to cell #2 to the UE via UE-dedicated RRC. For another example, after receiving the second information from terminal 101, the network device sends the auxiliary information corresponding to cell #2 to the UE via a broadcast RRC message.

[0210] In some embodiments, the network device may send the first information in the following different ways:

[0211] In a first implementation manner, the first information is first RRC information, and the first RRC information includes WUS configuration information and auxiliary information corresponding to the second cell.

[0212] In this implementation, the network device sends the wake-up information through the first RRC information, and the terminal 101 obtains the WUS configuration information and auxiliary information of the second cell on the first cell.

[0213] Optionally, the auxiliary information may be regarded as a part of the WUS configuration information, or the auxiliary information and the WUS configuration information may be sent via separate first RRC messages.

[0214] Optionally, the first RRC information may be SIB19 or UE-specific RRC signaling.

[0215] In this implementation, the first RRC information may include a cell identifier (cell#ID) of the second cell, so as to bind the wake-up information to the second cell or establish an association relationship with the second cell through the cell identifier.

[0216] Optionally, the auxiliary information of the second cell can be included in the SIB19 of the first cell. The network device indicates the auxiliary information corresponding to the second cell through the SIB19 sent on the first cell, and binds the WUS configuration information and auxiliary information of the second cell through cell#ID.

[0217] In this implementation manner, when the field corresponding to the auxiliary information is empty, the auxiliary information corresponding to the second cell is the same as the auxiliary information corresponding to the first cell.

[0218] Optionally, when the value of the auxiliary information field is empty, or the terminal 101 does not obtain the wake-up information corresponding to the second cell from the first cell, the terminal 101 may assume that the auxiliary information of the first cell is applicable to the second cell.

[0219] In a second implementation manner, the first information is scheduling information, and the scheduling information is used to schedule a PDSCH containing wake-up information.

[0220] Optionally, the first information includes WUS configuration information and scheduling information of the auxiliary information.

[0221] Optionally, the scheduling information of the auxiliary information may be regarded as a part of the WUS configuration information, or the scheduling information of the auxiliary information and the WUS configuration information may be sent separately through different first RRC messages.

[0222] Optionally, the scheduling information of the auxiliary information includes at least: time-frequency resource information of a physical downlink control channel (PDCCH) for blind detection scheduling auxiliary information, such as search space information, control channel resource set (CRC) information, SI time window information, etc. PDCCH is used to carry downlink control information DCI.

[0223] Optionally, the terminal 101 blindly detects the DCI of the auxiliary information based on the scheduling information of the auxiliary information, and then finds the PDSCH carrying the auxiliary information based on the DCI; and demodulates the auxiliary information so that in step S2103 the terminal 101 can send WUS based on the WUS configuration information and the auxiliary information.

[0224] In this embodiment, the scheduling information sent on the first cell needs to be received on the first cell, that is, the terminal 101 needs to blindly detect the DCI of the scheduling auxiliary information on the first cell. For example, the auxiliary information is sent in SIB19, and the SI window where the PDCCH scheduling SIB19 is located is on cell#1. The terminal 101 determines the blind detection occasion of the corresponding SSB in the SI window based on the SSB index on the selected cell#1, and obtains the auxiliary information corresponding to cell#2.

[0225] In a third implementation manner, the first information is indication information, where the indication information is used to instruct the terminal to receive scheduling information on the second cell, where the scheduling information is used to schedule a PDSCH containing wake-up information.

[0226] Optionally, the first information includes WUS configuration information and indication information.

[0227] Optionally, based on the indication information, the terminal 101 may monitor scheduling information on the second cell.

[0228] Optionally, in this embodiment, the scheduling information sent on the first cell needs to be received on the second cell, that is, the terminal 101 blindly detects the DCI of the scheduling auxiliary information on the second cell. For example, the auxiliary information is sent in SIB19, and the SI window where the PDCCH scheduling SIB#19 is located is on cell#2. The terminal 101 determines the blind detection timing of the corresponding SSB in the SI window based on the SSB index on the selected cell#2, and obtains the auxiliary information of cell#2.

[0229] In a fourth implementation manner, the first information only includes WUS configuration information corresponding to the second cell. The network device sends auxiliary information for uplink synchronization in the second cell.

[0230] Optionally, in this implementation manner, the auxiliary information is sent before the network device enters the energy-saving state on the second cell.

[0231] Optionally, in this embodiment, terminal 101 obtains WUS configuration information for the second cell through the first cell and obtains auxiliary information through the second cell. The scheduling information or auxiliary information of the second cell is sent to terminal 101 by the network device before entering the NES state on the second cell. Therefore, in step S2103, the terminal can send a WUS using the WUS configuration information obtained from the first cell and the auxiliary information obtained from the second cell.

[0232] In some embodiments, based on the above-mentioned different implementations, the terminal 101 may obtain WUS configuration information and auxiliary information.

[0233] Optionally, the terminal 101 maintains valid wake-up information. For example, the terminal 101 does not want the auxiliary information of the second cell to be invalid, that is, the validity period has expired; or the terminal 101 does not want to receive new auxiliary information of the second cell after the auxiliary information of the second cell times out.

[0234] Step S2103: Terminal 101 sends a WUS based on the wake-up information and the beam measurement result of the second cell.

[0235] Optionally, the wake-up information may include: WUS configuration information and auxiliary information corresponding to the second cell.

[0236] Optionally, the beam measurement result may be used to determine a beam with better transmission quality or reception quality of the network device, such as determining the SSB#index of the beam.

[0237] To facilitate understanding of the association between beam measurement and auxiliary information acquisition, the following describes the process of terminal 101 acquiring SI in conjunction with Figures 2b and 2c:

[0238] Figure 2b shows a schematic diagram of the Earth, where land is surrounded by ocean. In an NTN, network equipment can perform beam hopping, achieving wide coverage by combining narrow beam coverage with beam hopping. During beam hopping, some beams may cover ocean areas while others cover land, resulting in uneven traffic.

[0239] Optionally, the terminal 101 needs to obtain downlink synchronization through the beam measurement result of the SSB, such as determining a beam with better transmission quality or reception quality of the network device, and receiving SIB19 based on the beam. The beam can be identified by SSB#index.

[0240] As shown in Figure 2c, when receiving SI, other SIBs can be received based on SIB1. SIB1 can be broadcast periodically on the downlink shared channel (DL-SCH) or unicast on the DL-SCH. Other SIBs can be broadcast periodically on the DL-SCH, broadcast on demand on the DL-SCH, or unicast on the DL-SCH.

[0241] Optionally, terminal 101 first obtains the location of the PDCCH for SIB1 from the Master Information Block (MIB), namely the location of the type0-PDCCH Common Search Space (CSS). Terminal 101 needs to first search the type0-PDCCH CSS for the PDCCH that schedules the SIB1NR PDSCH: PDCCH-ConfigSIB1. PDCCH-ConfigSIB1 has a total of 8 bits, with the upper 4 bits defining the configuration of corset#0 and the lower 4 bits defining the monitoring timing configuration of the CSS.

[0242] Optionally, terminal 101 blindly detects the PDCCH that schedules SIB1 and demodulates SIB 1. SIB1 contains the SI messages to which other SIBs are mapped, and the scheduling information of the periodically broadcast SIBs and on-demand SIBs. Scheduling information, for example, is the time position of the corresponding SIB, such as the SI time window. Among them, one SI message can contain one or more SIBs. SIBs of the same period can be sent in the same SI message, and each SI message is associated with an SI time window. The time window position x satisfies: x = (n-1) * w, where w is the length of the SI message time window, and n is the sequence value that determines each SI message in SIB1. Among them, the network device can send the corresponding SI message multiple times within an SI time window. In periodic transmission, the SI Window length of different SI Messages is the same, and the period can be configured separately. SI Message is also carried on the PDSCH channel.

[0243] Optionally, taking the SI time window containing 10 time slots as an example, the time window is divided into several time periods, and a PDCCH listening opportunity is set in each time period, and SI is sent in order of increasing SSB index. For example, the parameter configuration is ssb-PositionslnBurst=1101'->ssb#0, ssb#1, ssb#3, N=3pdcch period=1slot. In each time period, the network device sends the SI PDCCH corresponding to different SSBs in the order of SSB#0, SSB#1 and SSB#3. For example, taking the first time period (slot0~slot2) as an example, the network device sends the SI PDCCH of SSB#0 in slot0, the SI PDCCH of SSB#1 in slot1, and the SI PDCCH of SSB#3 in slot2. SI is still sent in this SSB index order in the next time period.

[0244] Optionally, within the SI time window, the terminal 101 may selectively monitor the SI-RNTI according to the current SSB to obtain actual SI until the SI is acquired or the current SI window ends.

[0245] Optionally, in an embodiment of the present disclosure, the SSB#index is determined based on the beam measurement result of the second cell. The terminal 101 can listen to the SI corresponding to the SSB#index at the corresponding position, such as SIB19, and read the auxiliary information corresponding to the second cell in SIB19.

[0246] In some embodiments, the terminal 101 performs uplink synchronization based on the auxiliary information, and after the uplink synchronization, sends the WUS at the configured time-frequency position according to the first configuration information.

[0247] Optionally, the WUS may be used to wake up the network device, such as causing the network device to leave the NES state and return to a normal state on the second cell.

[0248] In some embodiments, before step S2101, the method may further include step S2100:

[0249] Step S2100: Terminal 101 sends capability information to the network device.

[0250] Optionally, the capability information is used to indicate whether the terminal supports obtaining the wake-up information, or whether the terminal supports waking up a network device in the second cell that is in an energy-saving state.

[0251] Optionally, when the terminal supports the above capability, the network device sends the first information again.

[0252] Optionally, the terminal may support the capability by default, or, when executing step S2101, it is assumed that the terminal supports the above capability.

[0253] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0254] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0255] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0256] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0257] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0258] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0259] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0260] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0261] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0262] The method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2103, such as the method including step S2102.

[0263] In some embodiments, at least one of steps S2102 to S2103 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0264] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 a .

[0265] FIG3a is a schematic diagram of a method for receiving information according to an embodiment of the present disclosure. As shown in FIG3a, a method for receiving information according to an embodiment of the present disclosure is performed by terminal 101 and includes:

[0266] Step S3101: Send second information in the first cell.

[0267] In some embodiments, the implementation of step S3101 can refer to the optional implementation of step S2101 and will not be repeated here.

[0268] Step S3102: Acquire first information in the first cell.

[0269] In some embodiments, the implementation of step S3102 can refer to the optional implementation of step S2102 and will not be repeated here.

[0270] Step S3103: Send a WUS based on the wake-up information and the beam measurement result of the second cell.

[0271] In some embodiments, the implementation of step S3103 can refer to the optional implementation of step S2103 and will not be repeated here.

[0272] The method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3103, such as the method including step S3102.

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

[0274] FIG3b is a schematic diagram of a method for receiving information according to an embodiment of the present disclosure. As shown in FIG3b , a method for receiving information according to an embodiment of the present disclosure is performed by terminal 101 and includes:

[0275] Step S3201: Receive first information sent by a network device in a first cell.

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

[0277] In some embodiments, the wake-up information includes at least one of the following:

[0278] wake-up signal WUS configuration information corresponding to the second cell;

[0279] Auxiliary information for uplink synchronization corresponding to the second cell.

[0280] In some embodiments, the first information is first radio resource control RRC information, and the first RRC information includes WUS configuration information and auxiliary information corresponding to the second cell.

[0281] In some embodiments, the first RRC information includes a cell identifier of the second cell.

[0282] In some embodiments, the auxiliary information corresponding to the second cell is the same as the auxiliary information corresponding to the first cell, wherein the field corresponding to the auxiliary information is empty.

[0283] In some embodiments, the first information is scheduling information, and the scheduling information is used to schedule a PDSCH containing wake-up information.

[0284] In some embodiments, the first information is indication information, and the indication information is used to instruct the terminal to receive scheduling information on the second cell, and the scheduling information is used to schedule a PDSCH containing wake-up information.

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

[0286] receiving, in the second cell, auxiliary information for uplink synchronization sent by a network device;

[0287] The wake-up information only includes the WUS configuration information corresponding to the second cell, and the auxiliary information is sent by the network device before entering the energy-saving state on the second cell.

[0288] In some embodiments, the terminal maintains valid wake-up information.

[0289] In some embodiments, the method further comprises:

[0290] Second information is sent to the network device in the first cell, where the second information is used to request the first information.

[0291] In some embodiments, the second information is one of the following:

[0292] Second RRC information;

[0293] Uplink control information UCI;

[0294] Media Access Control Unit MAC CE.

[0295] In some embodiments, the first information is terminal-specific signaling or a broadcast message.

[0296] In some embodiments, the method further comprises:

[0297] Send WUS based on the wake-up information and the beam measurement results of the second cell.

[0298] In some embodiments, the auxiliary information includes at least one of the following:

[0299] Satellite ephemeris information;

[0300] Common timing advance compensation TA parameter information;

[0301] The effective start time of public TA parameter information and satellite ephemeris information;

[0302] Validity period of public TA parameter information and satellite ephemeris information;

[0303] Polarization information.

[0304] In some embodiments, the method further comprises:

[0305] Send capability information to the network device in the first cell, where the capability information is used to indicate whether the terminal supports obtaining the wake-up information, or whether the terminal supports waking up a network device in a power-saving state in the second cell.

[0306] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 b .

[0307] FIG4a is a schematic diagram of a method for sending information according to an embodiment of the present disclosure. As shown in FIG4a , a method for sending information according to an embodiment of the present disclosure is performed by a network device and includes:

[0308] Step S4101: Acquire second information in the first cell.

[0309] In some embodiments, the implementation of step S4101 can refer to the optional implementation of step S2101 and will not be repeated here.

[0310] Step S4102: Send first information in the first cell.

[0311] In some embodiments, the implementation of step S4102 can refer to the optional implementation of step S2102 and will not be repeated here.

[0312] Step S4103, obtain WUS.

[0313] In some embodiments, the implementation of step S4103 can refer to the optional implementation of step S2103 and will not be repeated here.

[0314] The method involved in the embodiment of the present disclosure may include at least one of steps S4101 to S4103, such as the method including step S4102.

[0315] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 a .

[0316] FIG4b is a schematic diagram of a method for sending information according to an embodiment of the present disclosure. As shown in FIG4b , a method for sending information according to an embodiment of the present disclosure is performed by a network device and includes:

[0317] Step S4201: Send first information in the first cell.

[0318] In some embodiments, the implementation of step S4201 can refer to the optional implementation of step S2102 and will not be repeated here.

[0319] In some embodiments, the wake-up information includes at least one of the following:

[0320] WUS configuration information corresponding to the second cell;

[0321] Auxiliary information for uplink synchronization corresponding to the second cell.

[0322] In some embodiments, the first information is first RRC information, and the first RRC information includes WUS configuration information and auxiliary information corresponding to the second cell.

[0323] In some embodiments, the first RRC information includes a cell identifier of the second cell.

[0324] In some embodiments, the auxiliary information corresponding to the second cell is the same as the auxiliary information corresponding to the first cell, wherein the field corresponding to the auxiliary information is empty.

[0325] In some embodiments, the first information is scheduling information, and the scheduling information is used to schedule a PDSCH containing wake-up information.

[0326] In some embodiments, the first information is indication information, and the indication information is used to instruct the terminal to receive scheduling information on the second cell, and the scheduling information is used to schedule a PDSCH containing wake-up information.

[0327] In some embodiments, the method further comprises:

[0328] Sending auxiliary information for uplink synchronization to the terminal in the second cell;

[0329] The wake-up information only includes the WUS configuration information corresponding to the second cell, and the auxiliary information is sent by the network device before entering the energy-saving state on the second cell.

[0330] In some embodiments, the method further comprises:

[0331] The second information sent by the terminal in the first cell is received, where the second information is used to request the first information.

[0332] In some embodiments, the second information is one of the following:

[0333] Second RRC information;

[0334] UCI;

[0335] MAC CE.

[0336] In some embodiments, the first information is terminal-specific signaling or a broadcast message.

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

[0338] Receive the WUS sent by the terminal.

[0339] In some embodiments, the auxiliary information includes at least one of the following:

[0340] Satellite ephemeris information;

[0341] Common timing advance compensation TA parameter information;

[0342] The effective start time of public TA parameter information and satellite ephemeris information;

[0343] Validity period of public TA parameter information and satellite ephemeris information;

[0344] Polarization information.

[0345] In some embodiments, when the network device is in a power-saving state, it stops sending at least one of the following:

[0346] Periodic system information block SIB1;

[0347] Other SIBs on a periodic basis;

[0348] Periodic channel state information reference signal CSI-RS;

[0349] Semi-static CSI-RS.

[0350] In some embodiments, the method further comprises:

[0351] Capability information sent by the terminal is received in the first cell, where the capability information is used to indicate whether the terminal supports obtaining the wake-up information, or whether the terminal supports waking up a network device in a power-saving state in the second cell.

[0352] The method of the embodiment of the present disclosure provides a method for uplink time-frequency synchronization of WUS signals in NTN under the CA scenario. To facilitate understanding of the embodiment of the present disclosure, some examples are listed below:

[0353] Example 1:

[0354] The UE wakes up cell#2 and leaves the NES state by using the WUS configuration information for cell#2 and / or the uplink synchronization assistance information of cell#2 obtained on cell#1.

[0355] Optionally, the network device or network enters the NES state and stops sending at least one of the following signals: periodically sent SIB1 information, other SIB information, periodic CSI-RS, and semi-static CSI-RS; correspondingly, if the network leaves the NES state, the downlink signal is sent normally.

[0356] Optionally, the WUS configuration information includes at least one of the following: the transmission time-frequency position of the WUS signal, the WUS signal type (PRACH or PUCCH), and the WUS signal format (such as PUCCH format x).

[0357] Optionally, the uplink synchronization assistance information of cell#1 and cell#2 may be the same.

[0358] Example 2:

[0359] Based on Example 1, the UE obtains the WUS configuration information and uplink synchronization assistance information of cell#2 through cell#1. The uplink synchronization assistance information of cell#2 can be regarded as part of the WUS configuration information or sent separately in other RRC information, such as SIB19 or UE-specific RRC signaling.

[0360] In one embodiment, the uplink synchronization assistance information of cell#2 is included in SIB19 of cell#1 and sent. The UE binds the WUS configuration and the uplink synchronization assistance information through the cell#ID and sends the WUS based on the WUS configuration and the uplink assistance information.

[0361] In one embodiment, the UE does not obtain uplink synchronization assistance information for cell#2 from cell#1 or the value of this field is empty. The UE assumes that the uplink synchronization assistance information of cell#1 is applicable to cell#2, that is, it can be used by the UE to send WUS to cell#2.

[0362] Example 3:

[0363] Based on Example 1, the UE obtains the WUS configuration information and scheduling information of the uplink synchronization assistance information of cell#2 through cell#1. The scheduling information of the uplink synchronization assistance information can be regarded as part of the WUS configuration information or sent separately in other RRC.

[0364] The scheduling information of the uplink synchronization auxiliary information at least includes time-frequency resource information of a PDCCH (PDCCH is used to carry DCI) for blind detection scheduling of the uplink synchronization auxiliary information, such as search space information, Corset information, and SI window information.

[0365] Based on the uplink synchronization assistance information scheduling information, the UE blindly detects the DCI that schedules the uplink synchronization assistance information, and then finds the PDSCH carrying the uplink synchronization assistance information based on the DCI. It then decodes the uplink synchronization assistance information and sends the WUS based on the WUS configuration and assistance information.

[0366] In one embodiment, the scheduling information configured for cell#1 is on cell#1, meaning that the UE blindly detects the DCI that schedules uplink synchronization assistance information on cell#1. For example, if the uplink synchronization assistance information is sent in SIB19, and the SI window containing the PDCCH that schedules SIB19 is on cell#1, the UE determines the blind detection occasion for the corresponding SSB in the SI window based on the SSB index selected on cell#1, and obtains the uplink synchronization assistance information for cell#2.

[0367] In one embodiment, the scheduling information configured for cell#1 is on cell#2, meaning that the UE blindly detects the DCI scheduling uplink synchronization assistance information on cell#2. For example, if the uplink synchronization assistance information is sent in SIB19, and the SI window containing the PDCCH scheduling SIB#19 is on cell#2, the UE determines the blind detection occasion for the corresponding SSB in the SI window based on the SSB index selected for cell#2, and obtains the uplink synchronization assistance information for cell#2.

[0368] Example 4:

[0369] Based on Example 1, the UE obtains the WUS configuration information for cell#2 from cell#1 and the uplink synchronization assistance information from cell#2. The scheduling information or uplink synchronization assistance information for cell#2 is configured for the UE by cell#2 before entering the NES. The UE sends a WUS using the WUS configuration information obtained from cell#1 and the uplink synchronization assistance information obtained from cell#2.

[0370] Example 5:

[0371] Based on any of the above examples, the UE receives the WUS configuration of cell#2, and the UE does not want the received uplink synchronization assistance information of cell#2 to be invalid, that is, it exceeds the valid period; or the UE does not want to receive new uplink synchronization assistance information of cell#2 after the uplink synchronization assistance information of cell#2 times out.

[0372] Example 6:

[0373] Based on any of the above examples, the UE may send a request message to cell#1 to obtain uplink synchronization assistance information corresponding to the WUS of cell#2. The request message may be an RRC message, a UCI message, or a MAC CE message.

[0374] In one embodiment, the UE requests the base station for uplink synchronization assistance information of cell#2 through an SI request, such as a SIB19 message.

[0375] In one embodiment, the UE requests uplink synchronization assistance information from cell#1 through an RRC message Uplink Synchronization Assistance Information-request.

[0376] In one embodiment, the UE requests uplink synchronization assistance information from cell#1 via a message similar to a scheduling request.

[0377] In one embodiment, the UE requests uplink synchronization assistance information from cell#1 through a MAC CE message Uplink synchronization assistance information-request MAC CE.

[0378] In one embodiment, after receiving the request from the UE, the network sends the uplink synchronization assistance information of cell#2 to the UE through the UE-dedicated RRC.

[0379] In one embodiment, after receiving the request from the UE, the network sends the uplink synchronization assistance information of cell#2 to the UE via a broadcast RRC message.

[0380] Example 7:

[0381] Based on any of the above examples, the UE obtains the WUS configuration information of cell#2 and the uplink synchronization assistance information of cell#2. The UE selects the WUS time-frequency resource corresponding to the SSB index and applies the uplink synchronization assistance information to send the WUS signal according to the SSB measurement selection result of cell#2.

[0382] Example 8:

[0383] Based on any of the above examples, the WUS may be a PRACH signal or a PUCCH signal.

[0384] Example 9:

[0385] Based on any of the above examples, the information used for the UE to perform uplink time and / or frequency synchronization, that is, the uplink synchronization assistance information, includes at least one of the following:

[0386] Ephemeris data;

[0387] Common TA parameter information (parameters), such as common TA, common TA drift, common TA drift variation;

[0388] Epoch time (i.e., the effective start time of satellite ephemeris and / or common TA information);

[0389] ntn-UlSyncValidityDuration (i.e., the validity period of satellite ephemeris and / or common TA information);

[0390] Koffset;

[0391] Kmac;

[0392] Polarization information (such as uplink polarization direction, downlink polarization direction).

[0393] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0394] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0395] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0396] Figure 5a is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure. As shown in Figure 5a, terminal 5100 may include at least one of a transceiver module 5101 and a processing module 5102. In some embodiments, transceiver module 5101 is configured to receive, in a first cell, first information sent by a network device, indicating a wake-up message when the network device is in an energy-saving state in a second cell.

[0397] Optionally, the transceiver module 5101 is configured to execute at least one of the communication steps of sending and / or receiving performed by the terminal 101 in any of the above methods, which are not described in detail here. Optionally, the processing module 5102 is configured to execute at least one of the other steps performed by the terminal 101 in any of the above methods, which are not described in detail here.

[0398] Figure 5b is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure. As shown in Figure 5b, network device 5200 may include at least one of a transceiver module 5201 and a processing module 5202. In some embodiments, transceiver module 5201 is configured to send first information to a terminal in a first cell, the first information indicating a wake-up message when the network device is in an energy-saving state in a second cell.

[0399] Optionally, the transceiver module 5201 is used to perform at least one of the communication steps of sending and / or receiving performed by the network device in any of the above methods, which will not be described in detail here. Optionally, the processing module 5202 is used to perform at least one of the other steps performed by the network device in any of the above methods, which will not be described in detail here.

[0400] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0401] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules each execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0402] Figure 6a is a schematic diagram of the structure of a communication device 6100 proposed in an embodiment of the present disclosure. Communication device 6100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal implementing any of the above methods. Communication device 6100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0403] As shown in Figure 6a, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to perform any of the above methods. Optionally, one or more processors 6101 are used to call instructions to enable the communication device 6100 to perform any of the above methods.

[0404] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method, and the processor 6101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0405] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Alternatively, all or part of the memories 6103 may be located outside the communication device 6100. In alternative embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and may be configured to receive data from the memories 6103 or other devices, or to send data to the memories 6103 or other devices. For example, the interface circuits 6104 may read data stored in the memories 6103 and send the data to the processor 6101.

[0406] The communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0407] FIG6b is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6b , but the present disclosure is not limited thereto.

[0408] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0409] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Alternatively, all or part of memory 6203 may be located external to chip 6200. Optionally, interface circuit 6202 is connected to memory 6203 and may be used to receive data from memory 6203 or other devices, or may be used to send data to memory 6203 or other devices. For example, interface circuit 6202 may read data stored in memory 6203 and send the data to processor 6201.

[0410] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data exchange between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0411] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0412] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 6100, the communication device 6100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0413] The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0414] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods. Industrial Applicability

[0415] The terminal can obtain the wake-up information corresponding to the second cell indicated by the network device based on the first information received in the first cell, so that when the network device is in an energy-saving state in the second cell, the terminal can wake up in time based on the first information to ensure communication.

Claims

1. A method for receiving information, executed by a terminal, the method comprising: Receiving first information sent by a network device in a first cell, the first information being used to indicate wake-up information when the network device is in an energy-saving state in a second cell.

2. The method according to claim 1, wherein, The wake-up information includes at least one of the following: Wake-up signal WUS configuration information corresponding to the second cell; Auxiliary information for uplink synchronization corresponding to the second cell.

3. The method according to claim 2, wherein The first information is first radio resource control RRC information, and the first RRC information includes the WUS configuration information and auxiliary information corresponding to the second cell.

4. The method according to claim 3, wherein The first RRC information includes the cell identifier of the second cell.

5. The method according to claim 3, wherein The auxiliary information corresponding to the second cell is the same as the auxiliary information corresponding to the first cell, and the field corresponding to the auxiliary information is empty.

6. The method according to claim 2, wherein The first information is scheduling information, and the scheduling information is used to schedule a physical downlink shared channel PDSCH including the wake-up information.

7. The method according to claim 2, wherein The first information is indication information, and the indication information is used to indicate that the terminal receives scheduling information on the second cell, and the scheduling information is used to schedule a PDSCH including the wake-up information.

8. The method according to claim 2, wherein The method further comprises: Receiving, in the second cell, auxiliary information for uplink synchronization sent by the network device; wherein the wake-up information only includes the WUS configuration information corresponding to the second cell, and the auxiliary information is sent by the network device before entering the energy-saving state in the second cell.

9. The method according to any one of claims 1 to 8, wherein The terminal maintains valid wake-up information.

10. The method according to any one of claims 1 to 8, wherein, The method further comprises: Sending second information to the network device in the first cell, the second information being used to request the first information.

11. The method according to claim 10, wherein, The second information is one of the following: Second RRC information; Uplink control information UCI; Medium access control unit MAC CE.

12. The method according to claim 10, wherein The first information is terminal-specific signaling or a broadcast message.

13. The method according to any one of claims 1 to 8, wherein The method further comprises: Sending a WUS according to the wake-up information and the beam measurement result of the second cell.

14. The method according to any one of claims 2 to 8, wherein, The auxiliary information includes at least one of the following: Satellite ephemeris information; Common timing advance compensation TA parameter information; The effective start time of the common TA parameter information and the satellite ephemeris information; The effective duration of the common TA parameter information and the satellite ephemeris information; Polarization information.

15. The method according to any one of claims 1 to 8, wherein, The method further comprises: Sending capability information to the network device in the first cell, the capability information being used to indicate whether the terminal supports obtaining the wake-up information, or whether the terminal supports waking up a network device in an energy-saving state in a second cell.

16. A method for sending information, executed by a network device, the method comprising: Send a first piece of information to a terminal in a first cell, where the first piece of information is used to indicate wake-up information when the network device is in an energy-saving state in a second cell.

17. The method according to claim 16, wherein, The wake-up information includes at least one of the following: WUS configuration information corresponding to the second cell; Auxiliary information for uplink synchronization corresponding to the second cell.

18. The method according to claim 17, wherein The first piece of information is a first RRC message, and the first RRC message includes the WUS configuration information and the auxiliary information corresponding to the second cell.

19. The method according to claim 18, wherein The first RRC message includes the cell identifier of the second cell.

20. The method according to claim 18, wherein The auxiliary information corresponding to the second cell is the same as the auxiliary information corresponding to the first cell, and the field corresponding to the auxiliary information is empty.

21. The method according to claim 17, wherein The first piece of information is scheduling information, and the scheduling information is used to schedule a PDSCH containing the wake-up information.

22. The method according to claim 17, wherein The first piece of information is indication information, and the indication information is used to indicate that the terminal receives scheduling information on the second cell, and the scheduling information is used to schedule a PDSCH containing the wake-up information.

23. The method according to claim 17, wherein, The method further includes: Send auxiliary information for uplink synchronization to the terminal in the second cell; wherein the wake-up information only includes the WUS configuration information corresponding to the second cell, and the auxiliary information is sent by the network device before entering the energy-saving state on the second cell.

24. The method according to any one of claims 16 to 23, wherein, The method further includes: Receive a second piece of information sent by the terminal in the first cell, where the second piece of information is used to request the first piece of information.

25. The method according to claim 24, wherein, The second piece of information is one of the following: Second RRC message; UCI; MAC CE.

26. The method according to claim 24, wherein The first piece of information is terminal-specific signaling or a broadcast message.

27. The method according to any one of claims 16 to 23, wherein, The method further includes: Receive the WUS sent by the terminal.

28. The method according to any one of claims 17 to 23, wherein The auxiliary information includes at least one of the following: Satellite ephemeris information; Common timing advance compensation TA parameter information; The start time of validity of the common TA parameter information and the satellite ephemeris information; The effective duration of the common TA parameter information and the satellite ephemeris information; Polarization information.

29. The method according to any one of claims 16 to 23, wherein When the network device is in an energy-saving state, stop sending at least one of the following: Periodic system information block SIB1; Periodic other SIBs; Periodic channel state information reference signal CSI-RS; Semi-static CSI-RS.

30. The method according to any one of claims 16 to 23, wherein The method further includes: Receive the capability information sent by the terminal in the first cell, where the capability information is used to indicate whether the terminal supports obtaining the wake-up information, or whether the terminal supports waking up the network device in an energy-saving state in the second cell.

31. A terminal, comprising: A transceiver module, configured to receive a first piece of information sent by a network device in a first cell, where the first piece of information is used to indicate wake-up information when the network device is in an energy-saving state in a second cell.

32. A network device, comprising: A transceiver module, configured to send first information to a terminal in a first cell, where the first information is used to indicate wake-up information when the network device is in an energy-saving state in a second cell.

33. A terminal, comprising: One or more processors; Wherein, the terminal is configured to execute the method according to any one of claims 1 to 15.

34. A network device, comprising: One or more processors; Wherein, the network device is configured to execute the method according to any one of claims 16 to 30.

35. A communication system, comprising a terminal and a network device, wherein The terminal is configured to implement the method according to any one of claims 1 to 15; The network device is configured to implement the method according to any one of claims 16 to 30.

36. A storage medium storing instructions, wherein When the instructions are run on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 15 or claims 16 to 30.

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