Information indication method and apparatus, communication device, and storage medium

Abstract

The embodiment of the disclosure provides an information indication method, wherein the method is executed by a terminal, and the method comprises the following steps: receiving indication information sent by a base station; wherein the indication information is used for indicating a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. In this way, when the distance between a satellite in the NTN and the terminal changes, the TDW length can adapt to the change of the distance between the satellite and the terminal, so that the power consistency and the phase continuity can be better maintained within the TDW length, and NTN communication is ensured to be more reliable.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of wireless communication, and more particularly to an information indication method and device, a communication device, and a storage medium. BACKGROUND

[0002] In a non-terrestrial network (NTN), due to the long distance between a satellite or an aerial device and a ground terminal and large path loss, the signal coverage of some channels is limited. For example, the coverage of a physical uplink shared channel (PUSCH) is limited. In related scenarios, the coverage of a channel can be improved through demodulation reference signal (DMRS) bundling. DMRS bundling defines a nominal time domain window (TDW) and an actual TDW, and the terminal maintains power consistency and phase continuity within the actual TDW. However, in an NTN, due to the continuous movement of a satellite, the distance between the terminal and the satellite changes continuously, and the terminal adjusts a timing advance (TA) autonomously, which destroys the power consistency and phase continuity. SUMMARY

[0003] Embodiments of the present disclosure disclose an information indication method, device, communication device, and storage medium.

[0004] According to a first aspect of embodiments of the present disclosure, an information indication method is provided, wherein the method is performed by a terminal, and the method comprises:

[0005] receiving indication information sent by a base station;

[0006] The indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication.

[0007] According to a second aspect of embodiments of the present disclosure, an information indication method is provided, wherein the method is performed by a base station, and the method comprises:

[0008] sending indication information to a terminal;

[0009] The indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication.

[0010] According to a third aspect of the embodiments of the present disclosure, an information indication apparatus is provided, and the apparatus includes:

[0011] a receiving module configured to receive indication information transmitted by a base station;

[0012] The indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication.

[0013] According to a fourth aspect of the embodiments of the present disclosure, an information indication apparatus is provided, and the apparatus includes:

[0014] a transmitting module configured to transmit indication information to a terminal;

[0015] The indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication.

[0016] According to a fifth aspect of the embodiments of the present disclosure, a communication device is provided, and the communication device includes:

[0017] a processor;

[0018] a memory for storing executable instructions of the processor;

[0019] The processor is configured to implement the method according to any of the embodiments of the present disclosure when the executable instructions are executed.

[0020] According to a sixth aspect of the embodiments of the present disclosure, a computer storage medium is provided, and the computer storage medium stores a computer executable program, and the executable program is executed by a processor to implement the method according to any of the embodiments of the present disclosure.

[0021] In the embodiments of the present disclosure, indication information transmitted by a base station is received, and the indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication. Here, since the indication information received by the terminal indicates the TDW length for joint channel estimation in NTN communication, the base station can indicate the TDW length in time, and the TDW length can adapt to the change of the distance between the satellite in NTN and the terminal when the distance changes, so that the power consistency and phase continuity can be better maintained within the TDW length, and NTN communication can be ensured to be more reliable. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of a wireless communication system according to an exemplary embodiment.

[0023] Figure 2 is a flowchart of a method for indicating information according to an example embodiment.

[0024] Figure 3 is a flowchart of a method for indicating information according to an example embodiment.

[0025] Figure 4 is a flowchart of a method for indicating information according to an example embodiment.

[0026] Figure 5 is a flowchart of a method for indicating information according to an example embodiment.

[0027] Figure 6 is a flowchart of a method for indicating information according to an example embodiment.

[0028] Figure 7 is a flowchart of a method for indicating information according to an example embodiment.

[0029] Figure 8 is a flowchart of a method for indicating information according to an example embodiment.

[0030] Figure 9 is a flowchart of a method for indicating information according to an example embodiment.

[0031] Figure 10 is a flowchart of a method for indicating information according to an example embodiment.

[0032] Figure 11 is a schematic diagram of an apparatus for indicating information according to an example embodiment.

[0033] Figure 12 is a schematic diagram of an apparatus for indicating information according to an example embodiment.

[0034] Figure 13 is a structural diagram of a terminal according to an example embodiment.

[0035] Figure 14 is a block diagram of a base station according to an example embodiment. DETAILED DESCRIPTION

[0036] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements, and redundant description is omitted. The following exemplary embodiments described are not representative of all embodiments consistent with the present disclosure. Rather, they are merely examples in accordance with some aspects of the present disclosure as detailed in the appended claims.

[0037] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used in the present disclosure and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0038] It will be understood that, although the terms first, second, third, etc. can be used herein to describe various information, the information should not be limited to these terms. These terms are only used to distinguish one piece of information from another. For example, a first information can also be termed a second information, and, similarly, a second information can also be termed a first information, without departing from the scope of the present disclosure. Depending on the context, the word "if' as used herein can be interpreted as meaning "when" or "in response to determining."

[0039] For the purpose of brevity and clarity, the term "greater than" or "less than" is used herein when characterizing a size relationship. However, it will be understood by those skilled in the art that the term "greater than" also encompasses the meaning of "greater than or equal to," and the term "less than" also encompasses the meaning of "less than or equal to."

[0040] Reference is made to Figure 1 which shows a structure diagram of a wireless communication system provided by the present disclosure. As shown in Figure 1 , the wireless communication system is a communication system based on mobile communication technology, and the wireless communication system can include a plurality of user equipment 110 and a plurality of base stations 120.

[0041] The user equipment 110 can be a device that provides voice and / or data connectivity to a user. The user equipment 110 can communicate with one or more core networks via a Radio Access Network (RAN), and the user equipment 110 can be an Internet of Things user equipment, such as a sensor device, a mobile phone, and a computer with an Internet of Things user equipment, for example, which can be fixed, portable, pocket, hand-held, computer-embedded, or vehicle-mounted. For example, a Station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment. Alternatively, the user equipment 110 can also be a device of an unmanned aerial vehicle. Alternatively, the user equipment 110 can also be a vehicle-mounted device, which can be a vehicle-mounted computer with wireless communication function or a wireless user equipment externally connected to the vehicle-mounted computer. Alternatively, the user equipment 110 can also be a roadside device, which can be a street lamp, a signal lamp, or other roadside devices with wireless communication function, or the UE 11 can also be a relay device, such as a wireless communication device with relay function. The base station 120 can be a network-side device in a wireless communication system. The wireless communication system can be a 4th generation mobile communication (4G) system, also known as a Long Term Evolution (LTE) system, or the wireless communication system can also be a 5G system, also known as a New Radio system or a 5G NR system. Alternatively, the wireless communication system can also be a next generation of 5G system. In the 5G system, the access network can be referred to as a New Generation-Radio Access Network (NG-RAN).

[0042] The base station 120 can be an evolved NodeB (eNB) used in a 4G system. Alternatively, the base station 120 can also be a base station (gNB) using a centralized and distributed architecture in a 5G system. When the base station 120 uses a centralized and distributed architecture, it usually includes a central unit (CU) and at least two distributed units (DUs). The central unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a protocol stack of a physical (PHY) layer. The specific implementation of the base station 120 is not limited in the embodiments of the present disclosure. In an NTN network, the access device 120 can be a base station carried on a satellite or the like in the air, or a ground base station (for example, in a transparent payload network architecture) communicating with a satellite or the like in the air through a ground station.

[0043] The base station 120 and the user equipment 110 can establish a wireless connection through a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on a fourth generation mobile communication network technology (4G) standard; or the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new radio interface; or the wireless air interface can also be a wireless air interface based on a more next generation mobile communication network technology standard of 5G.

[0044] In some embodiments, the user equipment 110 can also establish an E2E (End to End) connection. For example, V2V (vehicle to vehicle) communication, V2I (vehicle to infrastructure) communication, and V2P (vehicle to pedestrian) communication in vehicle to everything (V2X) communication and the like.

[0045] Here, the user equipment described above can be considered as a terminal device in the following embodiments.

[0046] In some embodiments, the wireless communication system described above can also include a network management device 130.

[0047] A number of base stations 120 are connected to a network management device 130. The network management device 130 can be a core network device in a wireless communication system, for example, the network management device 130 can be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, the network management device can also be other core network devices, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), a Home Subscriber Server (HSS), etc. The implementation form of the network management device 130 is not limited in the embodiments of the present disclosure.

[0048] For the convenience of those skilled in the art to understand, the embodiments of the present disclosure enumerate a plurality of embodiments to clearly explain the technical solutions of the embodiments of the present disclosure. Of course, those skilled in the art can understand that the plurality of embodiments provided by the embodiments of the present disclosure can be executed alone, or can be executed together after being combined with the method of other embodiments of the present disclosure, or can be executed alone or together after being combined with some methods in other related technologies; the embodiments of the present disclosure do not make any limitation in this regard.

[0049] In order to better understand the embodiments of the present disclosure, the related scenarios of paging are described as follows:

[0050] In one embodiment, a way of DMRS bundling has been introduced in a terrestrial network (TN, Terrestrial Network) to improve uplink coverage, DMRS bundling is used for joint channel estimation of uplink channels or signals by a base station. For example, new Radio Resource Control (RRC) parameters DMRS-BundlingPUSCH-Config information element and DMRS-BundlingPUCCH-Config information element are defined, the values of these parameters can be understood as the length of a nominal TDW. The terminal will first report the terminal capability, and the base station will configure the nominal TDW according to the terminal capability. In one embodiment, in the case that no events occur during transmission, the actual TDW length is equal to the nominal TDW length, and the terminal will maintain power consistency and phase continuity within the actual TDW.

[0051] In one embodiment, in an NTN, due to the constant movement of the satellite, the distance between the terminal and the satellite is constantly changing, so the terminal needs to constantly adjust the timing advance (TA) to meet the requirement of uplink timing accuracy, and the adjustment of the TA will destroy the power consistency and phase continuity.

[0052] In one embodiment, as the satellite position changes, the timing drift changes, and the length of time during which the terminal does not adjust the TA also changes.

[0053] As shown in Figure 2 The method provided by the embodiment of the disclosure is a method for indicating information, wherein the method is executed by a terminal, and the method comprises the following steps:

[0054] Step 21, receiving indication information sent by a base station.

[0055] The indication information is used to indicate the length of a time domain window (TDW) used for joint channel estimation in non-terrestrial network (NTN) communication.

[0056] In one embodiment, the indication information sent by the base station is received, wherein the indication information is used to indicate the length of a time domain window (TDW) used for joint channel estimation in non-terrestrial network (NTN) communication; and the lengths of the TDWs indicated by the indication information received by the terminal for two consecutive times are different.

[0057] In an embodiment, receiving indication information transmitted by a base station; wherein the indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication; the TDW length indicated by the indication information received by the terminal at different times is different.

[0058] In an embodiment, receiving indication information transmitted by a base station; wherein the indication information is used to indicate at least one of the time domain window (TDW) lengths for joint channel estimation in a plurality of non-terrestrial network (NTN) communications configured by the base station.

[0059] Here, the terminal involved in the present disclosure can be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a road side unit (RSU), a smart home terminal, an industrial sensing device, a medical device, and the like. In some embodiments, the terminal can be a Redcap terminal or a pre-defined version of a new radio (NR) terminal (e.g., an NR terminal of R17). In an embodiment, the terminal can be a terminal of an NTN network.

[0060] The base station involved in the present disclosure can be various types of base stations, such as a base station of a third generation mobile communication (3G) network, a base station of a fourth generation mobile communication (4G) network, a base station of a fifth generation mobile communication (5G) network, or other evolved base stations. In an embodiment, the base station can be a base station of an NTN network.

[0061] Exemplarily, the TDW length can be a length of 2 slots to 32 slots.

[0062] In an embodiment, receiving indication information transmitted by a base station; wherein the indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication; the TDW length is determined based on a relative position between the terminal and a satellite in the NTN. Here, the relative position between the terminal and the satellite can be a distance, an angle, or the like.

[0063] In an embodiment, receiving indication information transmitted by a base station through first control signaling; wherein the indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication; the first control signaling is downlink control information (DCI) and / or a medium access control (MAC) control element (CE).

[0064] In an embodiment, the indication information is received through downlink control information (DCI) sent by the base station; wherein the indication information is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the TDW length indicated by the indication information received by the terminal for two consecutive times is different.

[0065] In an embodiment, the indication information is received through a medium access control (MAC) control element (CE) sent by the base station; wherein the indication information is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the TDW length indicated by the indication information received by the terminal for two consecutive times is different.

[0066] In an embodiment, configuration information is determined, wherein the configuration information is determined based on a predetermined communication protocol; the configuration information is used to configure at least two TDW lengths for the terminal. The indication information sent by the base station is received; wherein the indication information is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0067] In an embodiment, configuration information is determined, wherein the configuration information is determined based on a predetermined configuration parameter; wherein the configuration information is used to configure at least two TDW lengths for the terminal. The indication information sent by the base station is received; wherein the indication information is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0068] In an embodiment, the configuration information sent by the base station is received; wherein the configuration information is used to configure at least two TDW lengths for the terminal. The indication information sent by the base station is received; wherein the indication information is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0069] In an embodiment, the configuration information is received by the terminal through a RRC message; wherein the configuration information is used to configure at least two TDW lengths for the terminal. The indication information is received by the terminal; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the TDW length indicated by the indication information received by the terminal for two consecutive times is different. In this way, the terminal can select a TDW length from the at least two TDW lengths configured by the configuration information according to the indication information.

[0070] In an embodiment, the configuration information is received by the terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. The DCI is received by the terminal; wherein the DCI is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the TDW length indicated by the indication information received by the terminal for two consecutive times is different. In this way, the terminal can select a TDW length from the at least two TDW lengths configured by the configuration information according to the indication information.

[0071] In an embodiment, the configuration information is received by the terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. The MAC CE is received by the terminal; wherein the MAC CE is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the TDW length indicated by the indication information received by the terminal for two consecutive times is different. In this way, the terminal can select a TDW length from the at least two TDW lengths configured by the configuration information according to the indication information.

[0072] In an embodiment, before receiving the indication information sent by the base station, the terminal can first receive activation information or deactivation information sent by the base station; the activation information is used to activate at least one TDW length among the TDW lengths configured by the configuration information for the terminal; and the deactivation information is used to deactivate at least one TDW length among the TDW lengths configured by the configuration information for the terminal.

[0073] In an embodiment, the activation information sent by the base station is received by the terminal; wherein the activation information is used to activate at least one TDW length among the TDW lengths in the configuration information. The indication information is received by the terminal. Based on the indication information, a TDW length used for performing joint channel estimation is determined from the activated at least one TDW length.

[0074] In an embodiment, the base station transmits activation information, wherein the activation information is used to activate at least one TDW length in the configuration information. The terminal receives the indication information. Based on the TDW indicated by the indication information (i.e., the indication information indicates a certain TDW), the terminal determines the TDW length used for joint channel estimation from the activated at least one TDW length. For example, three TDWs, TDW1, TDW2 and TDW3, are activated, and the indication information indicates TDW2, then the terminal can determine TDW2 based on which the terminal performs joint channel estimation.

[0075] In an embodiment, the activation information or the deactivation information can be received through a MAC CE.

[0076] In an embodiment, the base station transmits configuration information to the terminal, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The base station transmits a MAC CE, wherein the MAC CE is used to activate part or all of the at least two TDW lengths. The base station transmits a DCI, wherein the DCI is used to indicate the time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. In this way, the terminal can select one TDW length from the activated TDW lengths in the at least two TDW lengths configured by the configuration information according to the indication of the DCI.

[0077] In an embodiment, the base station transmits configuration information to the terminal, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The base station transmits indication information, wherein the indication information is used to indicate the time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. The terminal receives the indication information twice in succession, and the TDW length indicated by the indication information is different. The indication information is used to indicate one TDW length in the at least two TDW lengths. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0078] In an embodiment, the terminal receives configuration information sent by the base station; wherein the configuration information is used to configure at least two TDW lengths for the terminal; the configuration information contains at least two identifiers; the identifiers correspond to the TDW lengths. The terminal receives indication information sent by the base station; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the indication information is used to indicate one TDW length from the at least two TDW lengths; the indication information carries the identifier, and the terminal determines the corresponding TDW length based on the identifier. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0079] Exemplarily, the mapping relationship between the identifiers and the TDW lengths can be stored in the terminal in advance, so that the TDW length can be determined from the at least two TDW lengths according to the identifier indicated by the indication information and the mapping relationship.

[0080] In an embodiment, the terminal receives indication information sent by the base station; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. The terminal determines the effective time and / or invalid time of the TDW length.

[0081] In an embodiment, the terminal receives indication information sent by the base station; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. The terminal determines the effective time of the TDW length based on the reception time of the indication information and a first offset.

[0082] In an embodiment, the indication information is a MAC CE; the first offset is 4, and the second offset is 4; and the slot in which the MAC CE is received is slot#n. Exemplarily, the terminal receives the MAC CE of the TDW length (i.e., TDW=8slots) in slot#n, and then determines that the TDW length starts to take effect in X slots (X=slot#n+4), i.e., the effective time is X.

[0083] In an embodiment, the terminal receives indication information sent by the base station; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. The terminal determines the invalid time of the TDW length based on the reception time of the indication information and a second offset.

[0084] In an embodiment, the indication information is a MAC CE; the first offset is 4, and the second offset is 4; and a slot in which the MAC CE is received is slot#m. Illustratively, a terminal receives a MAC CE of a TDW length (i.e., TDW = 8 slots) at slot#m, and the terminal determines that the TDW length starts to be invalid at Y slots (Y = slot#m + 4), i.e., the invalidation time is Y.

[0085] In an embodiment, an activation time of the TDW length is determined based on a time of HARQ acknowledgement information of a first physical downlink channel sent by the terminal and a third offset; the first physical downlink channel is used to carry the indication information; and / or, an invalidation time of the TDW length is determined based on the time of the HARQ acknowledgement information of the first physical downlink channel sent by the terminal and a fourth offset; the first physical downlink channel is used to carry the indication information; wherein the first physical downlink channel is a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

[0086] In an embodiment, indication information sent by a base station is received; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and an activation time of the TDW length is determined based on a time of HARQ acknowledgement information of a physical downlink shared channel (PDSCH) sent by the terminal; the PDSCH is used to carry the indication information.

[0087] In an embodiment, the indication information is a MAC CE; the third offset is 4, and the fourth offset is 4; and a slot in which the terminal sends HARQ acknowledgement information of a physical downlink shared channel (PDSCH) is slot#n, and the PDSCH is used to carry activation information for activating the TDW. Illustratively, a terminal feeds back HARQ acknowledgement information of a PDSCH including an activation TDW length (i.e., TDW = 8) at slot#n, and the terminal determines that the TDW length starts to be activated at X slots (X = slot#n + 4), i.e., the activation time is X.

[0088] In an embodiment, indication information sent by a base station is received; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and an invalidation time of the TDW length is determined based on a time of HARQ acknowledgement information of a physical downlink shared channel (PDSCH) sent by the terminal; the PDSCH is used to carry the indication information.

[0089] In an embodiment, the indication information is a MAC CE; the third offset is 4, and the fourth offset is 4; the slot of the HARQ-ACK information of the PDSCH sent by the terminal is slot#m, and the PDSCH is used to carry the deactivation information for deactivating the TDW. Illustratively, the UE feeds back the HARQ-ACK information of the PDSCH containing the deactivation TDW length (i.e., TDW=8) in slot#m, and then the terminal determines that the TDW length is invalid in Y slots (Y=slot#m+4), i.e., the invalidation time is Y.

[0090] In an embodiment, the first offset, the second offset, the third offset and / or the fourth offset are determined based on first information; wherein the first information comprises at least one of the following: information indicated by a base station; pre-defined information; and information specified by a predetermined protocol.

[0091] In an embodiment, the indication information is received from a base station; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the TDW length is valid for at least a current uplink multi-transmission scheduled by the base station. It is to be noted that the uplink multi-transmission comprises at least one of the following: when PUSCH-DMRS-Bundling is enabled, for PUSCH multi-repetition transmission of PUSCH repetition type A scheduled by DCI format 0_1 or 0_2; pre-granted semi-static PUSCH multi-repetition transmission of PUSCH repetition type A; PUSCH multi-repetition transmission of PUSCH repetition type B; TB processing over multiple slots, and when PUCCH-DMRS-Bundling is enabled, multi-repetition transmission of PUCCH.

[0092] In an embodiment, the indication information is received from a base station; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information is used to indicate the TDW length used for joint channel estimation when performing dynamic repetition transmission and semi-static repetition transmission in NTN communication, i.e., the TDW length used for joint channel estimation when the dynamic repetition transmission and the semi-static repetition transmission is the same. In this way, for the dynamic repetition transmission and the semi-static repetition transmission, the TDW length can be indicated by unified first control signaling.

[0093] In an embodiment, the terminal receives indication information sent by the base station; wherein the indication information is used to indicate the time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information is used to indicate the TDW length for joint channel estimation when dynamic repetition transmission or semi-static repetition transmission is performed in NTN communication. Thus, for dynamic repetition transmission and semi-static repetition transmission, the TDW length can be indicated by unified first control signaling.

[0094] In an embodiment, the terminal receives indication information sent by the base station; wherein the indication information is used to indicate the time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information is used to indicate the TDW length for joint channel estimation when dynamic repetition transmission or semi-static repetition transmission is performed in NTN communication. Thus, for dynamic repetition transmission and semi-static repetition transmission, the TDW length can be indicated by unified first control signaling.

[0095] In an embodiment, the terminal receives indication information sent by the base station; wherein the indication information is used to indicate the time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information is used to indicate the TDW length for joint channel estimation when dynamic repetition transmission or semi-static repetition transmission is performed in NTN communication. Thus, for dynamic repetition transmission and semi-static repetition transmission, the TDW length can be indicated by unified first control signaling.

[0096] Exemplarily, for uplink configured grant (UL configured grant) scheduling and downlink semi-static scheduling (DL SPS), different TDW values can be configured for different IDs when RRC is configured, and different IDs are activated by first signaling to realize selection of different TDW values.

[0097] In an embodiment, the terminal sends capability information to the base station; wherein the capability information indicates that the terminal supports or does not support receiving the indication information. Or, the capability information indicates that the terminal supports or does not support dynamic or semi-static update of the TDW length. The terminal receives indication information sent by the base station; wherein the indication information is used to indicate the time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication.

[0098] It should be noted that receiving the indication information is the capability of the terminal, which can be reported by the terminal whether it is supported. Alternatively, receiving the indication information is a function, which can be controlled by the base station whether to enable the function, which is not limited here.

[0099] In the embodiments of the present disclosure, indication information transmitted by a base station is received; wherein the indication information is used to indicate a time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication; and the TDW lengths indicated by the indication information received by the terminal two times in succession are different. Here, since the indication information received by the terminal indicates the time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication and the TDW lengths indicated by the indication information received by the terminal two times in succession can be different, thus, when the distance between the satellite in the NTN and the terminal changes, the TDW length can adapt to the change of the distance between the satellite and the terminal, so as to better maintain the power consistency and phase continuity within the TDW length, and ensure that the NTN communication is more reliable.

[0100] It should be noted that those skilled in the art can understand that the method provided by the embodiments of the present disclosure can be executed alone or together with some methods in some methods or related technologies in the embodiments of the present disclosure.

[0101] As shown in Figure 3 An information indication method is provided in the embodiments of the present disclosure, wherein the method is executed by a terminal, and the method comprises:

[0102] Step 31, receiving configuration information transmitted by a base station;

[0103] The configuration information is used to configure at least two TDW lengths for the terminal.

[0104] In one embodiment, the configuration information transmitted by the base station is received; wherein the configuration information is used to configure at least two TDW lengths for the terminal. The indication information transmitted by the base station is received; wherein the indication information is used to indicate a time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication; and the TDW lengths indicated by the indication information received by the terminal two times in succession are different. Thus, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0105] In an embodiment, the configuration information is received from the base station, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The indication information is received from the base station, wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication, and the TDW length indicated by the indication information received by the terminal at different times is different. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0106] In an embodiment, the configuration information is received from the base station through a RRC message, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The indication information is received from the base station, wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication, and the TDW length indicated by the indication information received by the terminal at different times is different. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0107] In an embodiment, the configuration information is received from the base station, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The DCI is received from the base station, wherein the DCI is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication, and the TDW length indicated by the indication information received by the terminal at different times is different. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the DCI.

[0108] In an embodiment, the configuration information is received from the base station, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The MAC CE is received from the base station, wherein the MAC CE is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication, and the TDW length indicated by the indication information received by the terminal at different times is different. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the MAC CE.

[0109] In an embodiment, the terminal receives configuration information sent by the base station, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The terminal receives a MAC CE sent by the base station, wherein the MAC CE is used to activate part or all of the at least two TDW lengths. The terminal receives a DCI sent by the base station, wherein the DCI is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication, and the TDW lengths indicated by the indication information received by the terminal successively twice are different. In this way, the terminal can select one TDW length from the activated TDW lengths among the at least two TDW lengths configured by the configuration information according to the indication of the DCI.

[0110] In an embodiment, the terminal receives configuration information sent by the base station, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The terminal receives indication information sent by the base station, wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication, and the TDW lengths indicated by the indication information received by the terminal successively twice are different. The indication information is used to indicate one TDW length among the at least two TDW lengths. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0111] In an embodiment, the terminal receives configuration information sent by the base station, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The configuration information contains at least two identifiers, and the identifiers correspond to the TDW lengths. The terminal receives indication information sent by the base station, wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication, and the TDW lengths indicated by the indication information received by the terminal successively twice are different. The indication information is used to indicate one TDW length among the at least two TDW lengths. The indication information carries the identifiers, and the terminal determines the corresponding TDW length based on the identifiers. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0112] In an embodiment, the terminal receives configuration information sent by the base station, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The terminal receives activation information or deactivation information sent by the base station, wherein the activation information is used to activate at least one TDW length among the TDW lengths configured for the terminal by the configuration information, and the deactivation information is used to deactivate at least one TDW length among the TDW lengths configured for the terminal by the configuration information.

[0113] It should be noted that the TDW length configured by the configuration information for the terminal needs to be activated by the activation information and the corresponding TDW length needs to be indicated by the indication information, so as to be used by the terminal.

[0114] It should be understood by those skilled in the art that the method provided by the embodiments of the present disclosure can be executed alone or together with some methods in some methods or related technologies in the embodiments of the present disclosure.

[0115] As shown in Figure 4 An information indication method is provided in the embodiments of the present disclosure, wherein the method is executed by a terminal, and the method comprises:

[0116] Step 41, receiving activation information or deactivation information sent by the base station;

[0117] The activation information is used to activate at least one TDW length in the TDW length configured by the configuration information for the terminal; and the deactivation information is used to deactivate at least one TDW length in the TDW length configured by the configuration information for the terminal.

[0118] In one embodiment, configuration information sent by the base station is received; wherein the configuration information is used to configure at least two TDW lengths for the terminal. Activation information or deactivation information sent by the base station is received; the activation information is used to activate at least one TDW length in the TDW length configured by the configuration information for the terminal; and the deactivation information is used to deactivate at least one TDW length in the TDW length configured by the configuration information for the terminal.

[0119] It should be noted that the TDW length configured by the configuration information for the terminal needs to be activated by the activation information and the corresponding TDW length needs to be indicated by the indication information, so as to be used by the terminal.

[0120] In one embodiment, configuration information sent by the base station is received; wherein the configuration information is used to configure at least two TDW lengths for the terminal. Activation information or deactivation information sent by the base station is received; the activation information is used to activate at least one TDW length in the TDW length configured by the configuration information for the terminal; and the deactivation information is used to deactivate at least one TDW length in the TDW length configured by the configuration information for the terminal. Indication information sent by the base station is received; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. If the TDW length is the TDW length configured by the configuration information and the TDW length is activated, the terminal can use the TDW length.

[0121] In an embodiment, the terminal receives activation information sent by the base station, wherein the activation information is used to activate at least one TDW length in the configuration information. Based on the indication information, the terminal determines the TDW length used for joint channel estimation from the activated at least one TDW length.

[0122] In an embodiment, the terminal receives activation information sent by the base station, wherein the activation information is used to activate at least one TDW length in the configuration information. Based on the indication information, the terminal determines the TDW length used for joint channel estimation from the activated at least one TDW length. For example, three TDWs, TDW1, TDW2 and TDW3, are activated, and the indication information indicates TDW2, then the terminal can determine TDW2 and perform joint channel estimation based on TDW2.

[0123] In an embodiment, the activation information or the deactivation information can be received through a MAC CE.

[0124] In an embodiment, the terminal receives configuration information sent by the base station, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The terminal receives a MAC CE sent by the base station, wherein the MAC CE is used to activate part or all of the at least two TDW lengths. The terminal receives a DCI sent by the base station, wherein the DCI is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. If the TDW length is one of the TDW lengths configured in the configuration information and the TDW length is activated, the terminal can use the TDW length. In this way, the terminal can select one TDW length from the activated TDW lengths of the at least two TDW lengths configured in the configuration information according to the indication of the DCI.

[0125] It should be noted that those skilled in the art can understand that the method provided in the embodiments of the present disclosure can be executed alone or together with some methods in some methods or related technologies in the embodiments of the present disclosure.

[0126] As shown in FIG. 5, the embodiments of the present disclosure provide an information indication method, wherein the method is executed by a terminal, and the method comprises the following steps. Figure 5

[0127] Step 51: determining the effective time and / or invalid time of the TDW length.

[0128] In an embodiment, the terminal receives indication information sent by the base station, wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. The terminal determines the effective time and / or invalid time of the TDW length. ​

[0129] In one embodiment, receiving indication information sent by a base station; wherein the indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication. A valid time of the TDW length is determined based on a receiving time of the indication information and a first offset.

[0130] In one embodiment, the indication information is a MAC CE; the first offset is 4, and the second offset is 4; and a slot in which the MAC CE is received is slot#n. Illustratively, a terminal receives a MAC CE of a TDW length (i.e., TDW = 8 slots) at slot#n, and then the terminal determines that the TDW length starts to be valid at X slots (X = slot#n + 4), i.e., the valid time is X.

[0131] In one embodiment, receiving indication information sent by a base station; wherein the indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication. An invalid time of the TDW length is determined based on a receiving time of the indication information and a second offset.

[0132] In one embodiment, the indication information is a MAC CE; the first offset is 4, and the second offset is 4; and a slot in which the MAC CE is received is slot#m. Illustratively, a terminal receives a MAC CE of a TDW length (i.e., TDW = 8 slots) at slot#m, and then the terminal determines that the TDW length starts to be invalid at Y slots (Y = slot#m + 4), i.e., the invalid time is Y.

[0133] In one embodiment, a valid time of the TDW length is determined based on a time of HARQ acknowledgement information of a first physical downlink channel sent by the terminal and a third offset; the first physical downlink channel is used to carry the indication information; and / or an invalid time of the TDW length is determined based on a time of HARQ acknowledgement information of a first physical downlink channel sent by the terminal and a fourth offset; the first physical downlink channel is used to carry the indication information; wherein the first physical downlink channel is a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

[0134] In one embodiment, receiving indication information sent by a base station; wherein the indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication. A valid time of the TDW length is determined based on a time of HARQ acknowledgement information of a physical downlink shared channel (PDSCH) sent by the terminal and a third offset; the PDSCH is used to carry the indication information.

[0135] In an embodiment, the indication information is a MAC CE; the third offset is 4, and the fourth offset is 4; the slot of the HARQ-ACK information of the PDSCH sent by the terminal is slot#n, and the PDSCH is used to carry the activation information for activating the TDW. For example, the terminal feeds back the HARQ-ACK information of the PDSCH containing the TDW length (i.e., TDW=8) in slot#n, and the terminal determines that the TDW length takes effect at X slots (X=slot#n+4), i.e., the time of taking effect is X.

[0136] In an embodiment, the indication information is a MAC CE; the third offset is 4, and the fourth offset is 4; the slot of the HARQ-ACK information of the PDSCH sent by the terminal is slot#n, and the PDSCH is used to carry the activation information for activating the TDW. For example, the terminal feeds back the HARQ-ACK information of the PDSCH containing the TDW length (i.e., TDW=8) in slot#n, and the terminal determines that the TDW length takes effect at X slots (X=slot#n+4), i.e., the time of taking effect is X.

[0137] In an embodiment, the indication information is a MAC CE; the third offset is 4, and the fourth offset is 4; the slot of the HARQ-ACK information of the PDSCH sent by the terminal is slot#n, and the PDSCH is used to carry the activation information for activating the TDW. For example, the terminal feeds back the HARQ-ACK information of the PDSCH containing the TDW length (i.e., TDW=8) in slot#n, and the terminal determines that the TDW length takes effect at X slots (X=slot#n+4), i.e., the time of taking effect is X.

[0138] In an embodiment, the indication information is a MAC CE; the third offset is 4, and the fourth offset is 4; the slot of the HARQ-ACK information of the PDSCH sent by the terminal is slot#n, and the PDSCH is used to carry the activation information for activating the TDW. For example, the terminal feeds back the HARQ-ACK information of the PDSCH containing the TDW length (i.e., TDW=8) in slot#n, and the terminal determines that the TDW length takes effect at X slots (X=slot#n+4), i.e., the time of taking effect is X.

[0139] It should be noted that those skilled in the art can understand that the method provided by the embodiments of the present disclosure can be executed alone or together with some methods in some methods or related technologies in the embodiments of the present disclosure.

[0140] As shown in FIG. 6, the embodiments of the present disclosure provide an information indication method, wherein the method is executed by a terminal, and the method comprises the following steps. Figure 6 As shown in FIG. 6, the embodiments of the present disclosure provide an information indication method, wherein the method is executed by a terminal, and the method comprises the following steps.

[0141] Step 61, sending capability information to a base station;

[0142] The capability information indicates whether the terminal supports or does not support receiving indication information; the indication information is used to indicate the time-domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication.

[0143] In one embodiment, capability information is sent to the base station; wherein the capability information indicates whether the terminal supports or does not support receiving indication information; the indication information is used to indicate: the time-domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the TDW length indicated by the indication information received by the terminal in two consecutive instances is different.

[0144] In one embodiment, capability information is sent to a base station; wherein the capability information indicates whether the terminal supports or does not support receiving indication information; the indication information is used to indicate: the time-domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the TDW length indicated by the indication information received by the terminal at different times is different.

[0145] In one embodiment, capability information is sent to the base station; wherein the capability information indicates whether the terminal supports or does not support receiving the indication information. The terminal receives the indication information sent by the base station; wherein the indication information indicates the time-domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication.

[0146] It should be noted that receiving indication information is a capability of the terminal, which can be reported by the terminal to determine whether it supports it. Alternatively, receiving indication information can be a function, which can be controlled by the base station to enable or disable. This is not limited here.

[0147] In this embodiment of the disclosure, the indication information is used to indicate: the time-domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the TDW length indicated by the indication information received by the terminal on two consecutive occasions is different. Alternatively, the indication information is used to indicate: the time-domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the TDW length indicated by the indication information received by the terminal at different times is different.

[0148] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0149] like Figure 7 As shown, this embodiment of the disclosure provides an information indication method, wherein the method is executed by a base station, and the method includes:

[0150] sending indication information to the terminal;

[0151] The indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication.

[0152] In one embodiment, indication information is sent to the terminal, and the indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication. The TDW lengths indicated by the indication information sent at two consecutive times are different.

[0153] In one embodiment, indication information is sent to the terminal, and the indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication. The TDW lengths indicated by the indication information sent at different times are different.

[0154] Here, the terminal involved in the present disclosure can be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a road side unit (RSU), a smart home terminal, an industrial sensor device, a medical device, and the like. In some embodiments, the terminal can be a Redcap terminal or a pre-defined version of a new radio (NR) terminal (e.g., an NR terminal of R17). In one embodiment, the terminal can be a terminal of an NTN network.

[0155] The base station involved in the present disclosure can be various types of base stations, such as a base station of a third generation mobile communication (3G) network, a base station of a fourth generation mobile communication (4G) network, a base station of a fifth generation mobile communication (5G) network, or other evolved base stations. In one embodiment, the base station can be a base station of an NTN network.

[0156] Exemplarily, the TDW length can be a length of 2 slots to 32 slots.

[0157] In one embodiment, indication information is sent to the terminal, and the indication information is used to indicate a time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication. The TDW length is determined based on a relative position between the terminal and a satellite in the NTN. Here, the relative position between the terminal and the satellite can be a distance, an angle, or the like.

[0158] In an embodiment, the indication information is sent to the terminal through first control signaling; wherein the indication information is used to indicate the time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the first control signaling is downlink control information (DCI) and / or medium access control (MAC) control element (CE).

[0159] In an embodiment, the indication information is sent to the terminal through downlink control information (DCI); wherein the indication information is used to indicate the time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information sent in two consecutive times indicates different TDW lengths.

[0160] In an embodiment, the indication information is sent to the terminal through medium access control (MAC) control element (CE); wherein the indication information is used to indicate the time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information sent in two consecutive times indicates different TDW lengths.

[0161] In an embodiment, configuration information is sent to the terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. Indication information is sent to the terminal; wherein the indication information is used to indicate the time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0162] In an embodiment, the configuration information is sent to the terminal through RRC message; wherein the configuration information is used to configure at least two TDW lengths for the terminal. Indication information is sent to the terminal; wherein the indication information is used to indicate the time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information sent in two consecutive times indicates different TDW lengths. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0163] In an embodiment, configuration information is sent to a terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. DCI is sent to the terminal; wherein the DCI is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the TDW length indicated by the indication information sent in two consecutive times is different. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the DCI.

[0164] In an embodiment, configuration information is sent to a terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. MAC CE is sent to the terminal; wherein the MAC CE is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the TDW length indicated by the indication information sent in two consecutive times is different. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the MAC CE.

[0165] In an embodiment, before the indication information is sent to the terminal, activation information or deactivation information can be sent to the terminal; the activation information is used to activate at least one TDW length among the TDW lengths configured for the terminal by the configuration information; the deactivation information is used to deactivate at least one TDW length among the TDW lengths configured for the terminal by the configuration information.

[0166] In an embodiment, the activation information or the deactivation information can be sent by MAC CE.

[0167] In an embodiment, configuration information is sent to a terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. MAC CE sent by a base station is received, wherein the MAC CE is used to activate part or all of the at least two TDW lengths. DCI is sent to the terminal; wherein the DCI is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication. In this way, the terminal can select one TDW length from the activated TDW lengths among the at least two TDW lengths configured by the configuration information according to the indication of the DCI.

[0168] In an embodiment, configuration information is sent to a terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. Indication information is sent to the terminal; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the TDW length indicated by the indication information sent twice in succession is different; and the indication information is used to indicate one of the at least two TDW lengths. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0169] In an embodiment, configuration information is sent to a terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal; the configuration information contains at least two identifiers; and the identifiers are used to determine the TDW lengths. Indication information is sent to the terminal; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the indication information is used to indicate one of the at least two TDW lengths; the indication information carries the identifiers; and the terminal determines the corresponding TDW length based on the identifiers. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0170] Exemplarily, the mapping relationship between the identifiers and the TDW lengths can be stored in the terminal in advance, so that the TDW length can be determined from the at least two TDW lengths according to the identifier indicated by the indication information and the mapping relationship.

[0171] In an embodiment, indication information is sent to a terminal; wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the TDW length is valid for at least uplink multiple transmissions scheduled by the base station this time. It should be noted that the uplink multiple transmissions include at least one of the following: when PUSCH-DMRS-Bundling is enabled, multiple PUSCH repetitions of PUSCH repetition type A scheduled by DCI format 0_1 or 0_2; multiple PUSCH repetitions of PUSCH repetition type A of pre-grant semi-static PUSCH; multiple PUSCH repetitions of PUSCH repetition type B; TB processing over multiple slots; and multiple repetitions of PUCCH when PUCCH-DMRS-Bundling is enabled.

[0172] In an embodiment, the terminal receives indication information sent by the base station; wherein the indication information is used to indicate the time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information is used to indicate the TDW length for joint channel estimation when performing dynamic repetition transmission and semi-static repetition transmission in NTN communication, i.e., the TDW length for joint channel estimation when performing dynamic repetition transmission is the same as the TDW length for joint channel estimation when performing semi-static repetition transmission. In this way, for dynamic repetition transmission and semi-static repetition transmission, unified first control signaling can be used for indication.

[0173] In an embodiment, the terminal receives indication information sent by the base station; wherein the indication information is used to indicate the time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information is used to indicate the TDW length for joint channel estimation when performing dynamic repetition transmission and semi-static repetition transmission in NTN communication, i.e., the TDW length for joint channel estimation when performing dynamic repetition transmission is the same as the TDW length for joint channel estimation when performing semi-static repetition transmission. In this way, for dynamic repetition transmission and semi-static repetition transmission, unified first control signaling can be used for indication.

[0174] In an embodiment, the terminal receives indication information sent by the base station; wherein the indication information is used to indicate the time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information is used to indicate the TDW length for joint channel estimation when performing dynamic repetition transmission and semi-static repetition transmission in NTN communication, i.e., the TDW length for joint channel estimation when performing dynamic repetition transmission is the same as the TDW length for joint channel estimation when performing semi-static repetition transmission. In this way, for dynamic repetition transmission and semi-static repetition transmission, unified first control signaling can be used for indication.

[0175] In an embodiment, the terminal receives indication information sent by the base station; wherein the indication information is used to indicate the time domain window (TDW) length for joint channel estimation in non-terrestrial network (NTN) communication; and the indication information is used to indicate the TDW length for joint channel estimation when performing dynamic repetition transmission and semi-static repetition transmission in NTN communication, i.e., the TDW length for joint channel estimation when performing dynamic repetition transmission is the same as the TDW length for joint channel estimation when performing semi-static repetition transmission. In this way, for dynamic repetition transmission and semi-static repetition transmission, unified first control signaling can be used for indication.

[0176] Exemplarily, for uplink pre-grant (UL configured grant) scheduling and downlink semi-static scheduling (DL SPS), different TDW values can be configured for different IDs when RRC is configured, and different IDs are activated by first signaling to realize selection of different TDW values.

[0177] In an embodiment, it is determined whether to send indication information to the terminal, wherein the indication information is used to indicate a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication, and the base station sends the indication information indicating different TDW lengths at different times. In response to determining to send the indication information to the terminal, the indication information is sent to the terminal.

[0178] In an embodiment, capability information sent by a terminal is received, wherein the capability information indicates whether the terminal supports or does not support receiving the indication information, or the capability information indicates whether the terminal supports or does not support dynamic or semi-static updating of a TDW length. In response to determining to send the indication information to the terminal, the indication information is sent, wherein the indication information is used to indicate a TDW length used for joint channel estimation in NTN communication.

[0179] It should be noted that receiving the indication information is a capability of the terminal, which can be reported by the terminal whether it is supported. Alternatively, receiving the indication information is a function, which can be controlled by the base station whether to enable the function, which is not limited herein.

[0180] It should be noted that those skilled in the art can understand that the method provided by the embodiments of the present disclosure can be executed alone or together with some methods in some methods or related technologies in the embodiments of the present disclosure.

[0181] As shown in FIG. 8, an information indication method is provided in the embodiments of the present disclosure, wherein the method is executed by a base station, and the method comprises: Figure 8

[0182] Step 81, configuration information is sent to the terminal.

[0183] The configuration information is used to configure at least two TDW lengths for the terminal.

[0184] In an embodiment, the configuration information is sent to the terminal, wherein the configuration information is used to configure at least two TDW lengths for the terminal. The indication information is sent to the terminal, wherein the indication information is used to indicate a TDW length used for joint channel estimation in NTN communication, and the indication information sent at two consecutive times indicates different TDW lengths. In this way, the terminal can select a TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0185] ​In an embodiment, the configuration information is sent to the terminal by a RRC message; wherein the configuration information is used to configure at least two TDW lengths for the terminal. The indication information is sent to the terminal; wherein the indication information is used to indicate: the time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication; the TDW length indicated by the indication information sent at different time is different. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0186] In an embodiment, the configuration information is sent to the terminal by a RRC message; wherein the configuration information is used to configure at least two TDW lengths for the terminal. The indication information is sent to the terminal; wherein the indication information is used to indicate: the time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication; the TDW length indicated by the indication information sent at different time is different. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0187] In an embodiment, the configuration information is sent to the terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. The DCI is sent to the terminal; wherein the DCI is used to indicate: the time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication; the TDW length indicated by the indication information sent at different time is different. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the DCI.

[0188] In an embodiment, the configuration information is sent to the terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. The MAC CE is sent to the terminal; wherein the MAC CE is used to indicate: the time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication; the TDW length indicated by the indication information sent at different time is different. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the MAC CE.

[0189] In an embodiment, configuration information is sent to the terminal, wherein the configuration information is used to configure at least two TDW lengths for the terminal. A MAC CE is sent to the terminal, wherein the MAC CE is used to activate part or all of the at least two TDW lengths. A DCI sent by a base station is received, wherein the DCI is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; and the TDW lengths indicated by the indication information sent continuously for two times are different. In this way, the terminal can select one TDW length from the activated TDW lengths among the at least two TDW lengths configured by the configuration information according to the indication of the DCI.

[0190] In an embodiment, configuration information is sent to the terminal, wherein the configuration information is used to configure at least two TDW lengths for the terminal. Indication information is sent to the terminal, wherein the indication information is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the TDW lengths indicated by the indication information sent continuously for two times are different; and the indication information is used to indicate one TDW length among the at least two TDW lengths. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information.

[0191] In an embodiment, configuration information is sent to the terminal, wherein the configuration information is used to configure at least two TDW lengths for the terminal; the configuration information contains at least two identifiers; and the identifiers correspond to the TDW lengths. Indication information is sent to the terminal, wherein the indication information is used to indicate: a time domain window (TDW) length used for joint channel estimation in non-terrestrial network (NTN) communication; the TDW lengths indicated by the indication information sent continuously for two times are different; the indication information is used to indicate one TDW length among the at least two TDW lengths; the indication information carries the identifiers; and the terminal determines the corresponding TDW length based on the identifiers. In this way, the terminal can select one TDW length from the at least two TDW lengths configured by the configuration information according to the indication of the indication information. It should be noted that the mapping relationship between the identifiers and the TDW lengths can be stored in the terminal in advance, so that the TDW length can be determined from the at least two TDW lengths according to the identifier indicated by the indication information and the mapping relationship.

[0192] In one embodiment, configuration information is sent to the terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. Activation information or deactivation information is sent to the terminal; the activation information is used to activate at least one TDW length configured for the terminal in the configuration information; the deactivation information is used to deactivate at least one TDW length configured for the terminal in the configuration information.

[0193] It should be noted that the TDW length configured for the terminal by the configuration information can only be used by the terminal after it has been activated by the activation information and the indication information indicates the corresponding TDW length.

[0194] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0195] like Figure 9 As shown, this embodiment of the disclosure provides an information indication method, wherein the method is executed by a base station, and the method includes:

[0196] Step 91: Send activation information or deactivation information to the terminal;

[0197] The activation information is used to activate at least one TDW length among the TDW lengths configured for the terminal in the configuration information; the deactivation information is used to deactivate at least one TDW length among the TDW lengths configured for the terminal in the configuration information.

[0198] In one embodiment, configuration information is sent to the terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. Activation information or deactivation information is sent to the terminal; the activation information is used to activate at least one TDW length configured for the terminal in the configuration information; the deactivation information is used to deactivate at least one TDW length configured for the terminal in the configuration information.

[0199] It should be noted that the TDW length configured for the terminal by the configuration information can only be used by the terminal after it has been activated by the activation information and the indication information indicates the corresponding TDW length.

[0200] In an embodiment, configuration information is sent to a terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. Activation information or deactivation information sent by the base station is received; the activation information is used to activate at least one TDW length among the TDW lengths configured by the configuration information for the terminal; and the deactivation information is used to deactivate at least one TDW length among the TDW lengths configured by the configuration information for the terminal. Indication information is sent to the terminal; wherein the indication information is used to indicate a time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication. If the TDW length is the TDW length configured by the configuration information and the TDW length is activated, the terminal can use the TDW length.

[0201] In an embodiment, the activation information or the deactivation information can be received through a MAC CE.

[0202] In an embodiment, configuration information is sent to a terminal; wherein the configuration information is used to configure at least two TDW lengths for the terminal. A MAC CE is sent to the terminal, wherein the MAC CE is used to activate part or all of the at least two TDW lengths. A DCI is sent to the terminal; wherein the DCI is used to indicate a time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication. If the TDW length is the TDW length configured by the configuration information and the TDW length is activated, the terminal can use the TDW length. In this way, the terminal can select one TDW length from the activated TDW lengths among the at least two TDW lengths configured by the configuration information according to the indication of the DCI.

[0203] It should be noted that those skilled in the art can understand that the method provided by the embodiments of the present disclosure can be executed alone or together with some methods in some methods or related technologies in the embodiments of the present disclosure.

[0204] As shown in FIG. 10, an information indication method is provided in the embodiments of the present disclosure, wherein the method is executed by a base station, and the method comprises: Figure 10

[0205] Step 101, determining whether to send indication information to a terminal;

[0206] wherein the indication information is used to indicate a time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication.

[0207] ​In an embodiment, it is determined whether to send indication information to the terminal; wherein the indication information is used to indicate: a time domain window TDW length for joint channel estimation in non-terrestrial network NTN communication; the TDW lengths indicated by the indication information sent at two continuous times are different.

[0208] In an embodiment, it is determined whether to send indication information to the terminal; wherein the indication information is used to indicate: a time domain window TDW length for joint channel estimation in non-terrestrial network NTN communication; the TDW lengths indicated by the indication information sent at different times are different.

[0209] In an embodiment, it is determined whether to send indication information to the terminal; wherein the indication information is used to indicate: a time domain window TDW length for joint channel estimation in non-terrestrial network NTN communication; the TDW lengths indicated by the indication information sent at different times are different. In response to determining to send the indication information to the terminal, the indication information is sent to the terminal.

[0210] In an embodiment, capability information sent by the terminal is received; wherein the capability information indicates that the terminal supports or does not support receiving the indication information. In response to determining to send the indication information to the terminal, the indication information is sent; wherein the indication information is used to indicate: a time domain window TDW length for joint channel estimation in non-terrestrial network NTN communication; the TDW lengths indicated by the indication information sent at two continuous times are different.

[0211] It should be noted that receiving the indication information is the capability of the terminal, which can be reported by the terminal whether it is supported. Alternatively, receiving the indication information is a function, which can be controlled by the base station whether to enable the function, which is not limited herein.

[0212] It should be noted that those skilled in the art can understand that the method provided by the embodiments of the present disclosure can be executed alone or together with some methods in some methods or related technologies in the embodiments of the present disclosure.

[0213] As shown in FIG. 11, an information indication apparatus is provided in the embodiments of the present disclosure, wherein the apparatus comprises: Figure 11

[0214] a receiving module 111 configured to receive indication information sent by a base station;

[0215] wherein the indication information is used to indicate: a time domain window TDW length for joint channel estimation in non-terrestrial network NTN communication.

[0216] ​It should be noted that the method provided by the embodiments of the present disclosure can be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0217] As shown in Figure 12 the embodiments of the present disclosure provide an information indication device, wherein the device comprises:

[0218] The sending module 121 is configured to send indication information to a terminal.

[0219] The indication information is used to indicate a time domain window TDW length used for joint channel estimation in non-terrestrial network NTN communication.

[0220] It should be noted that the method provided by the embodiments of the present disclosure can be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0221] The embodiments of the present disclosure provide a communication device, which comprises:

[0222] A processor;

[0223] A memory for storing processor executable instructions;

[0224] The processor is configured to implement the method applied to any embodiment of the present disclosure when running the executable instructions.

[0225] The processor can include various types of storage media, which is a non-transitory computer storage medium and can continue to store information on it after the communication device is powered off.

[0226] The processor can be connected with the memory through a bus or the like, and is used to read the executable program stored on the memory.

[0227] The embodiments of the present disclosure also provide a computer storage medium, wherein the computer storage medium stores a computer executable program, and the executable program is executed by the processor to implement the method of any embodiment of the present disclosure.

[0228] As for the device in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

[0229] As shown in Figure 13 the embodiments of the present disclosure provide a structure of a terminal.

[0230] Referring to Figure 13The terminal 800 shown in the figure is a terminal 800 according to an embodiment. The terminal 800 can be a mobile phone, a computer, a digital broadcast terminal, a messaging equipment, a game console, a tablet equipment, a medical equipment, a fitness equipment, a personal digital assistant, and the like.

[0231] Referring to Figure 13 The terminal 800 can include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0232] The processing component 802 usually controls overall operations of the terminal 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 can include one or more processors 820 to execute instructions to complete all or part of steps of the above methods. In addition, the processing component 802 can include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0233] The memory 804 is configured to store various types of data to support operations of the terminal 800. Examples of these data include instructions for any application or method operating on the terminal 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0234] The power supply component 806 provides power for various components of the terminal 800. The power supply component 806 can include a power supply management system, one or more power supplies, and other components associated with generating, managing and distributing power for the terminal 800.

[0235] The multimedia component 808 includes a screen providing an output interface between the terminal 800 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide and a gesture on the touch panel. The touch sensor can not only sense a boundary of a touching or a sliding action, but also detect duration and intensity of the touch or slide action. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. The front camera and / or the rear camera can receive external multimedia data if the terminal 800 is in an operation mode, such as a shooting mode or a video mode. Each of the front and rear camera can be a fixed optical lens system or have a focal length and optical zooming capability.

[0236] The audio component 810 is configured to output and / or input an audio signal. For example, the audio component 810 includes a microphone (MIC) configured to receive an external audio signal if the terminal 800 is in an operation mode, such as a call mode, a recording mode and a voice recognition mode. The received audio signal can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 further includes a speaker for outputting an audio signal.

[0237] The I / O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which can be a keypad, a click wheel, buttons and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button and a lock button.

[0238] The sensor component 814 includes one or more sensors to provide various state assessments for the terminal 800. For example, the sensor component 814 can detect an open / closed state of the terminal 800, relative positioning of components, such as a display and a keypad of the terminal 800, a change in position of the terminal 800 or a component of the terminal 800, presence or absence of user contact with the terminal 800, an orientation or acceleration / deceleration of the terminal 800, and a temperature change of the terminal 800. The sensor component 814 can include a proximity sensor configured to detect presence of a nearby object without any physical touch. The sensor component 814 can further include a light sensor such as a CMOS or CCD image sensor for use in an imaging application. In some embodiments, the sensor component 814 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

[0239] The communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network based on a communication standard, such as Wi-Fi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0240] In an exemplary embodiment, the terminal 800 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic elements, for performing the above-described methods.

[0241] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as the memory 804 including instructions, is also provided, which can be executed by the processor 820 of the terminal 800 to complete the above-described methods. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc.

[0242] As shown in Figure 14 An embodiment of the present disclosure shows a structure of a base station. For example, the base station 900 can be provided as a network-side device. Referring to Figure 14 , the base station 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by a memory 932, for storing instructions, such as application programs, executable by the processing component 922. The application programs stored in the memory 932 can include one or more than one module each corresponding to a set of instructions. In addition, the processing component 922 is configured to execute the instructions to perform any of the above-described methods of the aforementioned applications at the base station.

[0243] The base station 900 can also include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input output (I / O) interface 958. The base station 900 can operate based on an operating system stored in the memory 932, such as Windows Server TM, Mac OS X TM, Unix TM, Linux TM, FreeBSD TM, or the like.

[0244] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0245] It is to be understood that the application is not limited to the precise structures hereinabove described and shown in the drawings, for purposes of illustration and education only, and that various modifications and changes can be made therein without departing from the scope thereof. The scope of the application is indicated by the claims appended hereto.

Claims

1. An information indication method, wherein, The method is executed by a terminal, and the method includes: Receive indication information sent by the base station; The indication information is used to indicate: the TDW length of one of the at least two time-domain window TDW lengths used for joint channel estimation in non-terrestrial network NTN communication configured by the configuration information; The TDW lengths indicated by the indication information received by the terminal on two consecutive occasions are different.

2. The method according to claim 1, wherein, The indication information sent by the receiving base station includes: The indication information sent by the base station is received through the first control signaling; The first control signaling is downlink control information (DCI) and / or media access control (MAC) control element (CE).

3. The method according to claim 1, wherein, The method further includes: Receive configuration information sent by the base station; or, The configuration information is determined based on a predetermined communication protocol; or, The configuration information is determined based on predetermined configuration parameters; The configuration information is used to configure at least two TDW lengths for the terminal.

4. The method according to claim 3, wherein, The receiving of configuration information sent by the base station includes: The configuration information sent by the base station is received via Radio Resource Control (RRC) messages.

5. The method according to claim 3, wherein, The configuration information includes at least two identifiers; the identifiers correspond to the TDW length; the indication information carries the identifiers; the terminal determines the corresponding TDW length based on the identifiers.

6. The method according to claim 3, wherein, The method further includes: Receive activation information or deactivation information sent by the base station; The activation information is used to activate at least one TDW length in the configuration information; the deactivation information is used to deactivate at least one TDW length in the configuration information.

7. The method according to claim 6, wherein, The method further includes: Based on the indicated information, the TDW length for performing joint channel estimation is determined from the at least one activated TDW length.

8. The method according to claim 1, wherein, The method further includes: Determine the effective time and / or ineffective time of the TDW length.

9. The method according to claim 8, wherein, The determination of the effective time and / or expiration time of the TDW length includes: The effective time of the TDW length is determined based on the reception time of the indicated information and the first offset. And / or, The failure time of the TDW length is determined based on the reception time of the indicated information and the second offset.

10. The method according to claim 9, wherein, The method further includes: The first offset and / or the second offset are determined based on the first information; The first information includes at least one of the following: Information indicated by the base station; Predefined information; and Information as specified in the pre-booking agreement.

11. The method according to claim 8, wherein, The determination of the effective time and / or expiration time of the TDW length includes: The effective time of the TDW length is determined based on the time of the HARQ acknowledgment information sent by the terminal through the first physical downlink channel and the third offset; the first physical downlink channel is used to carry the indication information. And / or, The failure time of the TDW length is determined based on the time of the HARQ acknowledgment information of the first physical downlink channel sent by the terminal and the fourth offset; the first physical downlink channel is used to carry the indication information; wherein, the first physical downlink channel is a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

12. The method according to claim 11, wherein, The method further includes: The third offset and / or the fourth offset are determined based on the first information; The first information includes at least one of the following: Information indicated by the base station; Predefined information; and Information as specified in the pre-booking agreement.

13. The method according to claim 1, wherein, The TDW length is valid for at least the multiple uplink transmissions scheduled by the base station in this operation.

14. The method according to claim 1, wherein, The indication information is used to indicate the TDW length used for joint channel estimation when performing dynamic repetition and semi-static repetition in NTN communication; or, The indication information is used to indicate the TDW length used for joint channel estimation when performing dynamic or semi-static repetitive transmissions in NTN communication.

15. The method according to claim 1, wherein, The method further includes: Send capability information to the base station; The capability information indicates whether the terminal supports or does not support receiving the indication information.

16. An information indication method, wherein, The method is executed by a base station, and the method includes: Send instruction information to the terminal; The indication information is used to indicate: the TDW length of one of the at least two time-domain window TDW lengths used for joint channel estimation in non-terrestrial network NTN communication configured by the configuration information; The TDW lengths indicated by the indication information sent by the base station in two consecutive transmissions are different.

17. The method according to claim 16, wherein, Sending instruction information to the terminal includes: The instruction information is sent to the terminal via the first control signaling; The first control signaling is downlink control information (DCI) and / or media access control (MAC) control element (CE).

18. The method according to claim 16, wherein, The method further includes: Send configuration information to the terminal; The configuration information is used to configure at least two TDW lengths for the terminal.

19. The method according to claim 18, wherein, Sending configuration information to the terminal includes: Configuration information is sent to the terminal via RRC messages.

20. The method of claim 16, wherein, The configuration information contains at least two identifiers; the identifiers correspond to the TDW length; the indication information carries the identifiers.

21. The method according to claim 16, wherein, The method further includes: Send activation information or deactivation information to the terminal; The activation information is used to activate at least one TDW length in the configuration information; the deactivation information is used to deactivate at least one TDW length in the configuration information.

22. The method according to claim 16, wherein, The TDW length is valid for at least the multiple uplink transmissions scheduled by the base station in this operation.

23. The method according to claim 16, wherein, The indication information is used to indicate the TDW length used for joint channel estimation when performing dynamic repetition and semi-static repetition in NTN communication; or, The indication information is used to indicate the TDW length used for joint channel estimation when performing dynamic or semi-static repetitive transmissions in NTN communication.

24. The method of claim 16, wherein, The method further includes: Determine whether to send the instruction information to the terminal.

25. The method according to claim 24, wherein, The method further includes: The terminal receives capability information sent by the terminal, the capability information indicating whether the terminal supports or does not support receiving the indication information; The step of determining whether to send the indication information to the terminal includes: Based on the capability information, determine whether to send the instruction information to the terminal.

26. An information indicating device, wherein, The device includes: The receiving module is configured to receive indication information sent by the base station; The indication information is used to indicate: the TDW length of one of the at least two time-domain window TDW lengths used for joint channel estimation in non-terrestrial network NTN communication configured by the configuration information; The TDW lengths indicated by the indication information received by the receiving module in two consecutive instances are different.

27. An information indicating device, wherein, The device includes: The sending module is configured to send indication information to the terminal; The indication information is used to indicate: the TDW length of one of the at least two time-domain window TDW lengths used for joint channel estimation in non-terrestrial network NTN communication configured by the configuration information; The TDW lengths indicated by the indication information sent by the sending module in two consecutive transmissions are different.

28. A communication device, wherein, include: antenna; Memory; The processor, connected to the antenna and the memory respectively, is configured to control the transmission and reception of the antenna by executing computer-executable instructions stored in the memory, and is capable of implementing the method provided by any one of claims 1 to 15 or 16 to 25.

29. A computer storage medium storing computer-executable instructions, which, when executed by a processor, enable the implementation of the method provided by any one of claims 1 to 15 or 16 to 25.

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