Duration Determination Method, Device, and Storage Medium

Abstract

The present disclosure provides a duration determination method, an apparatus, and a storage medium. The duration determination method includes: determining a first duration, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation for an uplink channel; reporting the first duration to a base station; determining a second duration for joint channel estimation for the uplink channel, where the second duration is less than or equal to the first duration; and determining that the second duration becomes effective. The present disclosure can dynamically determine the duration of joint channel estimation by a terminal and a base station in an NTN network, achieving the purpose of enhancing uplink channel coverage in the NTN network and improving the reliability of uplink transmission in the NTN network.

Description

Technical Field

[0001] The present disclosure relates to the field of communications, and in particular, to a method and apparatus for determining a duration, and a storage medium. Background Art

[0002] In Release-17 of the 3rd Generation Partnership Project (3GPP), the coverage of the uplink channel in the terrestrial network can be enhanced by the Demodulation Reference Signal (DMRS) bundling technology. To ensure that the base station can demodulate the uplink channel signal across time units, the terminal needs to ensure the power consistency and phase continuity within a certain time window. Since the position of the base station remains unchanged, the terminal reports the maximum duration of the joint channel estimation supported by the terminal once, and the base station can determine that the terminal can maintain power consistency and phase consistency within the maximum duration.

[0003] However, in a Non-terrestrial Network (NTN), due to the relatively fast moving speed of the satellite, the terminal cannot ensure power consistency and phase consistency throughout the entire maximum duration, and the reliability is relatively low when enhancing the uplink coverage through joint channel estimation. Summary of the Invention

[0004] To overcome the problems in the related art, embodiments of the present disclosure provide a method and apparatus for determining a duration, and a storage medium, which can dynamically determine the duration of joint channel estimation by a terminal and a base station in an NTN network, achieve the purpose of enhancing the uplink channel coverage in the NTN network, and improve the reliability of uplink transmission in the NTN network.

[0005] According to a first aspect of the embodiments of the present disclosure, there is provided a method for determining a duration, which is executed by a terminal, and includes:

[0006] Determine a first duration, where the first duration is the maximum duration that the terminal supports for joint channel estimation for an uplink channel;

[0007] Report the first duration to the base station;

[0008] Determine a second duration for joint channel estimation for the uplink channel, where the second duration is less than or equal to the first duration;

[0009] Determine that the second duration takes effect.

[0010] Optionally, the method further includes:

[0011] Receive the bundling duration of the demodulation reference signal DMRS sent by the base station, where the bundling duration is less than or equal to the first duration;

[0012] The determining the second duration for performing joint channel estimation on the uplink channel includes any one of the following:

[0013] When the number of the bundling durations is 1, determine the second duration that is less than or equal to the bundling duration;

[0014] When the number of the bundling durations is multiple, determine one of the multiple bundling durations as the second duration.

[0015] Optionally, the determining the second duration for performing joint channel estimation on the uplink channel includes:

[0016] Based on the first duration, determine the second duration.

[0017] Optionally, the method further includes:

[0018] Report the second duration to the base station.

[0019] Optionally, the reporting the second duration to the base station includes:

[0020] Report the second duration to the base station through the first uplink control information UCI; or

[0021] Report the second duration to the base station through the first media access control unit MAC CE.

[0022] Optionally, the value indicated by the bit value of the first information field in the first UCI is equal to the second duration; or

[0023] The value indicated by the bit value of the first information field in the first UCI is equal to the index value of the second duration.

[0024] Optionally, the determining the second duration to take effect includes at least one of the following:

[0025] Determine the starting effective moment of the second duration;

[0026] Determine the effective range of the second duration.

[0027] Optionally, the determining the starting effective moment of the second duration includes:

[0028] Determine the first moment of reporting the effective indication information, where the effective indication information is used to indicate that the second duration takes effect;

[0029] Determine the effective interval duration;

[0030] Determine a second moment after the first moment and at an interval of the effective interval duration from the first moment;

[0031] Determine the second moment as the starting effective moment of the second duration.

[0032] Optionally, determining the starting effective moment of the second duration includes:

[0033] Determine a third moment carried in the effectiveness indication information as the starting effective moment of the second duration, where the effectiveness indication information is used to indicate the effectiveness of the second duration.

[0034] Optionally, determining the effective range of the second duration includes any one of the following:

[0035] Determine the period between the starting effective moment of the second duration and the starting effective moment of a new second duration as the effective range of the second duration;

[0036] Determine the period between the starting effective moment of the second duration and the completion of the first number of uplink transmissions as the effective range of the second duration;

[0037] Determine the period between the starting effective moment of the second duration and the starting moment of the expiration of the second duration as the effective range of the second duration;

[0038] Determine the period starting from the starting effective moment of the second duration and lasting for a third duration as the effective range of the second duration.

[0039] Optionally, the method further includes:

[0040] Determine the number of time units occupied by the third duration based on a protocol - agreed manner.

[0041] Optionally, the method further includes:

[0042] Determine the number of time units occupied by the third duration;

[0043] Send a notification message to the base station, where the notification message is used to notify the base station of the number of time units occupied by the third duration.

[0044] Optionally, the method further includes:

[0045] Report the effectiveness indication information to the base station, where the effectiveness indication information is used to indicate the effectiveness of the second duration.

[0046] Optionally, reporting the effectiveness indication information to the base station includes:

[0047] Report the effective indication information to the base station through a second UCI; or

[0048] Report the effective indication information to the base station through a second MAC CE.

[0049] Optionally, the effective indication information is further used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0050] Optionally, the method further includes:

[0051] Report failure indication information to the base station, where the failure indication information is used to indicate that the second duration fails.

[0052] Optionally, reporting the failure indication information to the base station includes:

[0053] Report the failure indication information to the base station through a third UCI; or

[0054] Report the failure indication information to the base station through a third MAC CE.

[0055] Optionally, the bit value of the first information field in the third UCI indicates an invalid value.

[0056] Optionally, the failure indication information is further used to indicate that the terminal cannot support continuing to maintain power consistency and / or continuing to maintain phase continuity within the second duration.

[0057] Optionally, determining that the second duration takes effect includes any one of the following:

[0058] Determine that the joint channel estimation for the uplink channel takes effect within the second duration;

[0059] Determine that the joint channel estimation for the first type of uplink channel takes effect within the second duration;

[0060] Determine that the joint channel estimation for the first transmission mode of the first type of uplink channel takes effect within the second duration.

[0061] According to a second aspect of the embodiments of the present disclosure, a duration determination method is provided, which is executed by a base station and includes:

[0062] Receive a first duration reported by a terminal, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation for the uplink channel;

[0063] Determine a second duration for joint channel estimation for the uplink channel, where the second duration is less than or equal to the first duration;

[0064] Determine that the second duration becomes effective.

[0065] Optionally, the method further includes:

[0066] Based on the first duration, determine the bundling duration of the demodulation reference signal DMRS, where the bundling duration is less than or equal to the first duration;

[0067] Send the bundling duration to the terminal;

[0068] The determination of the second duration for joint channel estimation for the uplink channel includes any one of the following:

[0069] When the number of the bundling durations is 1 and the second duration reported by the terminal is not received, determine the bundling duration as the second duration;

[0070] When the number of the bundling durations is 1, receive the second duration reported by the terminal, where the second duration is less than or equal to the bundling duration;

[0071] When the number of the bundling durations is multiple, receive the second duration reported by the terminal, where the second duration is one of the multiple bundling durations.

[0072] Optionally, the determination of the second duration for joint channel estimation for the uplink channel includes:

[0073] Receive the second duration reported by the terminal, where the second duration is determined by the terminal based on the first duration.

[0074] Optionally, the receiving of the second duration reported by the terminal includes:

[0075] Receive the second duration reported by the terminal through the first uplink control information UCI; or

[0076] Receive the second duration reported by the terminal through the first media access control unit MAC CE.

[0077] Optionally, the value indicated by the bit value of the first information field in the first UCI is equal to the second duration; or

[0078] The value indicated by the bit value of the first information field in the first UCI is equal to the index value of the second duration.

[0079] Optionally, the determination that the second duration becomes effective includes any one of the following:

[0080] Determine the starting effective moment of the second duration;

[0081] Determine the effective range of the second duration.

[0082] Optionally, the determining the start effective moment of the second duration includes:

[0083] Determine the first moment when the terminal reports the effective indication information, where the effective indication information is used to indicate the effectiveness of the second duration;

[0084] Determine the effective interval duration;

[0085] Determine a second moment that is after the first moment and is separated from the first moment by the effective interval duration;

[0086] Determine the second moment as the start effective moment of the second duration.

[0087] Optionally, the determining the start effective moment of the second duration includes:

[0088] Determine the third moment carried in the effective indication information reported by the terminal as the start effective moment of the second duration, where the effective indication information is used to indicate the effectiveness of the second duration.

[0089] Optionally, the determining the effective range of the second duration includes any one of the following:

[0090] Determine the time period between the start effective moment of the second duration and the start effective moment of a new second duration as the effective range of the second duration;

[0091] Determine the time period between the start effective moment of the second duration and the completion of the first uplink transmission as the effective range of the second duration;

[0092] Determine the time period between the start effective moment of the second duration and the start failure moment of the second duration as the effective range of the second duration;

[0093] Determine the time period that lasts for a third duration starting from the start effective moment of the second duration as the effective range of the second duration.

[0094] Optionally, the method further includes:

[0095] Determine the number of time units occupied by the third duration based on a protocol-agreed manner.

[0096] Optionally, the method further includes:

[0097] Receive the notification message reported by the terminal, where the notification message is used to notify the base station of the number of time units occupied by the third duration.

[0098] Optionally, the method further includes:

[0099] Receiving the effective indication information reported by the terminal, where the effective indication information is used to indicate that the second duration becomes effective.

[0100] Optionally, the receiving the effective indication information reported by the terminal includes:

[0101] Receiving the effective indication information reported by the terminal through a second UCI; or

[0102] Receiving the effective indication information reported by the terminal through a second MAC CE.

[0103] Optionally, the effective indication information is further used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0104] Optionally, the method further includes:

[0105] Receiving the invalid indication information reported by the terminal, where the invalid indication information is used to indicate that the second duration becomes invalid.

[0106] Optionally, the receiving the invalid indication information reported by the terminal includes:

[0107] Receiving the invalid indication information reported by the terminal through a third UCI; or

[0108] Receiving the invalid indication information reported by the terminal through a third MAC CE.

[0109] Optionally, the bit value of the first information field in the third UCI indicates an invalid value.

[0110] Optionally, the invalid indication information is further used to indicate that the terminal cannot support continuing to maintain power consistency and / or continuing to maintain phase continuity within the second duration.

[0111] Optionally, the determining that the second duration becomes effective includes any one of the following:

[0112] Determining that the joint channel estimation performed on the uplink channel becomes effective within the second duration;

[0113] Determining that the joint channel estimation performed on the first type of uplink channel becomes effective within the second duration;

[0114] Determining that the joint channel estimation performed on the first transmission mode of the first type of uplink channel becomes effective within the second duration.

[0115] According to a third aspect of the embodiments of the present disclosure, a terminal is provided, including:

[0116] A processing module, configured to determine a first duration, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation for an uplink channel;

[0117] A sending module, configured to report the first duration to a base station;

[0118] The processing module is further configured to determine a second duration for joint channel estimation for the uplink channel, where the second duration is less than or equal to the first duration;

[0119] The processing module is further configured to determine that the second duration takes effect.

[0120] According to a fourth aspect of the embodiments of the present disclosure, a base station is provided, including:

[0121] A receiving module, configured to receive the first duration reported by a terminal, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation for an uplink channel;

[0122] A processing module, configured to determine a second duration for joint channel estimation for the uplink channel, where the second duration is less than or equal to the first duration;

[0123] The processing module is further configured to determine that the second duration takes effect.

[0124] According to a fifth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, where the storage medium stores a computer program, and the computer program is used to execute the duration determination method described in any one of the above terminal sides.

[0125] According to a sixth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, where the storage medium stores a computer program, and the computer program is used to execute the duration determination method described in any one of the above base station sides.

[0126] According to a seventh aspect of the embodiments of the present disclosure, a communication device is provided, including:

[0127] A processor;

[0128] A memory for storing instructions executable by the processor;

[0129] Wherein, the processor is configured to execute the duration determination method described in any one of the above terminal sides.

[0130] According to an eighth aspect of the embodiments of the present disclosure, a communication device is provided, including:

[0131] A processor;

[0132] A memory for storing instructions executable by the processor;

[0133] Wherein, the processor is configured to execute the duration determination method described in any one of the above base station sides.

[0134] According to a ninth aspect of the embodiments of the present disclosure, a communication system is provided, including:

[0135] A terminal, configured to execute the duration determination method described in any one of the above terminal sides;

[0136] A base station, configured to execute the duration determination method described in any one of the above base station sides.

[0137] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

[0138] In the embodiments of the present disclosure, the terminal may report to the base station the maximum duration that the terminal supports joint channel estimation for the uplink channel, that is, the first duration, and then determine the second duration for joint channel estimation for the uplink channel, and the second duration may be less than or equal to the first duration. The terminal can dynamically determine the effectiveness of the second duration. The present disclosure can dynamically determine the duration of joint channel estimation in the NTN network, achieving the purpose of enhancing the uplink channel coverage in the NTN network and improving the reliability of uplink transmission in the NTN network.

[0139] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Brief Description of the Drawings

[0140] The accompanying drawings here are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present invention, and are used together with the specification to explain the principles of the present invention.

[0141] Figure 1 It is a schematic flowchart of a duration determination method shown according to an exemplary embodiment.

[0142] Figure 2 It is a schematic flowchart of another duration determination method shown according to an exemplary embodiment.

[0143] Figure 3 It is a schematic flowchart of another duration determination method shown according to an exemplary embodiment.

[0144] Figure 4 It is a schematic flowchart of another duration determination method shown according to an exemplary embodiment.

[0145] Figure 5 It is a schematic flowchart of another duration determination method shown according to an exemplary embodiment.

[0146] Figure 6Another schematic flowchart of a duration determination method shown according to an exemplary embodiment.

[0147] Figure 7 Another schematic flowchart of a duration determination method shown according to an exemplary embodiment.

[0148] Figure 8 Another schematic flowchart of a duration determination method shown according to an exemplary embodiment.

[0149] Figure 9 Another schematic flowchart of a duration determination method shown according to an exemplary embodiment.

[0150] Figure 10 Another schematic flowchart of a duration determination method shown according to an exemplary embodiment.

[0151] Figure 11 A block diagram of a terminal device shown according to an exemplary embodiment.

[0152] Figure 12 A block diagram of a base station device shown according to an exemplary embodiment.

[0153] Figure 13 A schematic structural diagram of a communication device shown according to an exemplary embodiment of the present disclosure.

[0154] Figure 14 A schematic structural diagram of another communication device shown according to an exemplary embodiment of the present disclosure.

[0155] Figure 15 A schematic structural diagram of a communication system shown according to an exemplary embodiment of the present disclosure. Detailed implementation manners

[0156] Here, the exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0157] The terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The singular forms "a", "the", and "said" used in the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of at least one of the associated listed items.

[0158] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various messages, these messages should not be limited to these terms. These terms are only used to distinguish messages of the same type from each other. For example, without departing from the scope of this disclosure, the first message may also be referred to as the second message, and similarly, the second message may also be referred to as the first message. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0159] In NTN, due to the long distance between the satellite and the ground terminal, the path loss is large, which will cause the coverage of some channels to be limited. Currently, the uplink coverage can be improved by the method of joint channel estimation.

[0160] Among them, joint channel estimation can refer to jointly performing channel estimation for multiple channels. In the implementation process, the number of channels for each joint channel estimation is determined by the DMRS bundling number. That is, the number of joint channel estimation windows limits the number of channels for joint channel estimation.

[0161] The prerequisite for using DMRS bundling is that the terminal can ensure the power consistency and phase consistency within a period of uplink transmission time. According to the relevant mechanism, when the phase gap between two time slots is no more than 25 degrees or 30 degrees, the requirement of phase continuity can be met.

[0162] Among them, the calculation formula of the phase is as follows:

[0163] Phase Phi = 2π × v × t / λ = 2π × fd × t

[0164] Among them, t is the gap between two time points, that is, the duration, v is the relative moving speed of the transceiver, λ is the propagation speed of the beam, and fd is the Doppler frequency shift.

[0165] It can be seen that in addition to the phase noise caused by the device, the phase change will also cause a phase shift due to the relative movement of the transceiver.

[0166] When performing uplink coverage enhancement, the terminal needs to ensure power consistency and phase continuity within a certain time window. Therefore, the terminal needs to report this capability, that is, the maximum continuous duration for the terminal to maintain power consistency and phase consistency. The base station can configure the duration L of joint channel estimation through Radio Resource Control (RRC) messages. L cannot be greater than the maximum continuous duration. L can be configured separately for the Physical Uplink Shared Channel (PUSCH) and the Physical Uplink Control Channel (PUCCH). L can also be configured separately for each UpLink (UL) Bandwidth Part (BWP). When L is not configured, it can be defaulted that L can be the minimum of the maximum continuous duration and the maximum retransmission duration, that is, L = min(maximum continuous duration, maximum retransmission duration).

[0167] However, in NTN, due to the relatively fast moving speed of the satellite, the terminal cannot ensure power consistency and phase consistency throughout the entire maximum continuous duration. Therefore, in NTN, the reliability of uplink coverage enhancement through joint channel estimation is relatively low.

[0168] To solve this technical problem, the present disclosure provides the following duration determination method, device, storage medium, and communication system, which can dynamically determine the duration of joint channel estimation by the terminal and the base station in the NTN network, achieving the purpose of uplink channel coverage enhancement in the NTN network and improving the reliability of uplink transmission in the NTN network.

[0169] First, the duration determination method provided by the present disclosure will be introduced from the terminal side.

[0170] An embodiment of the present disclosure provides a duration determination method. Referring to Figure 1 shown Figure 1 is a flowchart of a duration determination method shown according to an embodiment, which can be executed by a terminal. The method may include the following steps:

[0171] In step 101, a first duration is determined. The first duration is the maximum continuous duration that the terminal supports for joint channel estimation of the uplink channel.

[0172] In an embodiment of the present disclosure, the terminal can determine the maximum continuous duration that the terminal supports for joint channel estimation of the uplink channel based on the terminal capabilities. That is, the terminal can determine the maximum continuous duration that the terminal can maintain power consistency and / or phase consistency based on the terminal capabilities.

[0173] In a possible implementation, the terminal may determine, based on the terminal capabilities, the maximum duration for which the terminal supports joint channel estimation for a specific uplink channel. The specific uplink channel may be a PUSCH and / or a PUCCH.

[0174] In another possible implementation, the terminal may determine, based on the terminal capabilities, the maximum duration for which the terminal supports joint channel estimation for a specific transmission mode of a specific uplink channel. The specific uplink channel may be a PUSCH or a PUCCH, and the specific transmission mode may include, but is not limited to, a type A retransmission mode of the PUSCH, a type B retransmission mode of the PUSCH, etc.

[0175] In step 102, report the first duration to the base station.

[0176] In a possible implementation, the terminal may report the first duration to the base station via an RRC message.

[0177] In step 103, determine a second duration for joint channel estimation for the uplink channel, where the second duration is less than or equal to the first duration.

[0178] In a possible implementation, after the terminal reports the first duration to the base station, the base station determines, based on the first duration, the length L of the time domain window (TDW) for demodulation reference signal (DMRS) binding. L is the binding duration of the DMRS, and this binding duration may be less than or equal to the first duration.

[0179] Furthermore, the base station may send down the binding duration of the DMRS.

[0180] In an example, the base station may send the binding duration to the terminal via an RRC message, and the binding duration is less than or equal to the first duration.

[0181] Furthermore, the terminal may determine the second duration based on this binding duration.

[0182] In an example, the number of binding durations sent by the base station to the terminal is 1, and the terminal may determine a second duration less than or equal to the binding duration according to service conditions, the channel quality between the terminal and the network-side device, etc.

[0183] In another example, the number of binding durations sent by the base station to the terminal is multiple, and the terminal may determine one of the multiple binding durations as the second duration according to service conditions, the channel quality between the terminal and the network-side device, etc.

[0184] In another possible implementation, the terminal can directly determine a second duration less than or equal to the first duration based on the first duration reported to the base station, according to service conditions, channel quality between the terminal and network-side devices, etc.

[0185] In step 104, it is determined that the second duration takes effect.

[0186] In the embodiments of the present disclosure, the terminal's determination that the second duration takes effect may include but is not limited to at least one of the following: determining the starting effective moment of the second duration; determining the effective range of the second duration. The methods for determining the starting effective moment and the effective range will be introduced in subsequent embodiments and will not be introduced here for the time being.

[0187] In the above embodiments, the duration of joint channel estimation can be dynamically determined in the NTN network, achieving the purpose of enhancing the uplink channel coverage in the NTN network and improving the reliability of uplink transmission in the NTN network.

[0188] In some alternative embodiments, referring to Figure 2 as shown Figure 2 is a flowchart of a duration determination method shown according to an embodiment, which can be executed by a terminal. The method may include the following steps:

[0189] In step 201, a first duration is determined, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation for the uplink channel.

[0190] In the embodiments of the present disclosure, the terminal can determine the maximum continuous duration that the terminal supports for joint channel estimation for the uplink channel based on the terminal capabilities. That is to say, the terminal can determine the maximum continuous duration that the terminal can maintain power consistency and / or phase consistency based on the terminal capabilities.

[0191] In one possible implementation, the terminal can determine the maximum continuous duration that the terminal supports for joint channel estimation for a specific uplink channel based on the terminal capabilities. The specific uplink channel may be PUSCH or PUCCH.

[0192] In another possible implementation, the terminal can determine the maximum continuous duration that the terminal supports for joint channel estimation for a specific transmission mode of a specific uplink channel based on the terminal capabilities. The specific uplink channel may be PUSCH or PUCCH, and the specific transmission mode may include but is not limited to the type A retransmission mode of PUSCH, the type B retransmission mode of PUSCH, etc.

[0193] In step 202, the first duration is reported to the base station.

[0194] In a possible implementation, the terminal may report the first duration to the base station via an RRC message.

[0195] In step 203, receive the bundling duration of the demodulation reference signal DMRS sent by the base station, where the bundling duration is less than or equal to the first duration.

[0196] In the embodiments of the present disclosure, after the terminal reports the first duration to the base station, the base station determines the length L of the TDW for bundling the demodulation reference signal DMRS based on the first duration. L is the bundling duration of the demodulation reference signal DMRS, and this bundling duration can be less than or equal to the first duration.

[0197] Furthermore, the base station may send down the bundling duration of the demodulation reference signal DMRS.

[0198] In an example, the base station may send the bundling duration to the terminal via an RRC message, where the bundling duration is less than or equal to the first duration.

[0199] In step 204, based on the bundling duration, determine a second duration for joint channel estimation for the uplink channel, where the second duration is less than or equal to the bundling duration.

[0200] In an example, the number of bundling durations sent by the base station to the terminal is 1, and the terminal may determine a second duration equal to the bundling duration according to service conditions, channel quality between the terminal and the network-side device, etc.

[0201] In another example, the number of bundling durations sent by the base station to the terminal is 1, and the terminal may determine a second duration less than the bundling duration according to service conditions, channel quality between the terminal and the network-side device, etc.

[0202] In another example, the number of bundling durations sent by the base station to the terminal is multiple, and the terminal may determine one of the multiple bundling durations as the second duration according to service conditions, channel quality between the terminal and the network-side device, etc.

[0203] For example, the multiple bundling durations include L1, L2, L3, L4, and the terminal may assume one of them, such as L2, as the second duration.

[0204] In step 205, report the second duration to the base station.

[0205] In a possible implementation, the terminal may report the second duration to the base station via the first uplink control information (Uplink Control Information, UCI).

[0206] In one example, the value indicated by the bit value of the first information field in the first UCI is equal to the second duration.

[0207] Among them, the first information field may be an information field for indicating the second duration, or the first information field may be an information field for indicating whether the second duration takes effect. Specifically, the first information field may be a specifically defined information field in the protocol for indicating the second duration or for indicating whether the second duration takes effect, or the first information field may be an information field that multiplexes and transmits other information. The present disclosure does not limit this.

[0208] In the embodiments of the present disclosure, the value indicated by the bit value of the first information field in the first UCI may be equal to the second duration.

[0209] For example, if the second duration is t milliseconds, the value indicated by the bit value of the first information field in the first UCI is t.

[0210] In another example, the value indicated by the bit value of the first information field in the first UCI may be equal to the index value of the second duration, thereby reducing the number of bits occupied by the UCI, saving uplink signaling resources, and having high availability.

[0211] For example, the base station sends multiple binding durations to the terminal, including L1, L2, L3, L4. The terminal determines that the second duration is L2. Then, the value indicated by the bit value of the first information field in the first UCI is the index value of the second duration. Here, the index value of the second duration is 2. Therefore, the value indicated by the bit value of the first information field in the first UCI is also 2.

[0212] The above is only an exemplary illustration. In practical applications, the solution of reporting the second duration for joint channel binding of the uplink channel dynamically determined by the terminal to the base station through the UCI should fall within the protection scope of the present disclosure.

[0213] In another possible implementation, the terminal may report the second duration to the base station through the first Medium Access Control Element (MAC CE).

[0214] Similarly, the bit value included in the first MAC CE may directly indicate the second duration or indicate the index value of the second duration. The present disclosure does not limit this.

[0215] It can be understood that step 205 is an optional step.

[0216] In a possible implementation, when the number of binding durations is 1 and the terminal determines that the second duration is equal to the binding duration, step 205 can be omitted, that is, the terminal does not need to report the second duration to the base station. When the number of binding durations is 1 and the base station does not receive the second duration reported by the terminal, it can determine that the second duration is equal to the binding duration.

[0217] In another possible implementation, the number of binding durations is 1, and an optional duration set is determined through protocol agreement or pre - negotiation between the base station and the terminal. The optional duration set includes at least one optional duration. After receiving the binding duration sent by the base station, the terminal selects an optional duration from the optional duration set according to a predefined rule, and determines the difference between the binding duration and the selected optional duration as the second duration. At this time, step 205 can also be omitted, that is, the terminal can not report the second duration to the base station.

[0218] In another possible implementation, the number of binding durations is multiple, and a method for determining the second duration among the multiple binding durations is determined through protocol agreement or pre - negotiation between the base station and the terminal, then step 205 can also be omitted, that is, the terminal can not report the second duration to the base station.

[0219] In step 206, it is determined that the second duration takes effect.

[0220] In the embodiments of the present disclosure, the terminal determining that the second duration takes effect may include but is not limited to at least one of the following: determining the starting effective moment of the second duration; determining the effective range of the second duration. The methods for determining the starting effective moment and the effective range will be introduced in subsequent embodiments and are not introduced here for the time being.

[0221] In the above embodiments, the terminal can determine the second duration for joint channel estimation of the uplink channel based on the binding duration of the demodulation reference signal DMRS sent by the base station, and then determine that the second duration takes effect. Thus, in the NTN network, the duration of joint channel estimation can be dynamically determined, achieving the purpose of enhancing the uplink channel coverage in the NTN network and improving the reliability of uplink transmission in the NTN network.

[0222] In some optional embodiments, as shown in Figure 3 shown, Figure 3 is a flowchart of a duration determination method shown according to an embodiment, which can be executed by a terminal. The method may include the following steps:

[0223] In step 301, a first duration is determined, and the first duration is the maximum continuous duration that the terminal supports for joint channel estimation of the uplink channel.

[0224] In an embodiment of the present disclosure, the terminal may determine, based on the terminal capabilities, the maximum duration for which the terminal supports joint channel estimation for the uplink channel. That is, the terminal may determine, based on the terminal capabilities, the maximum duration for which the terminal can maintain power consistency and / or phase consistency.

[0225] In a possible implementation, the terminal may determine, based on the terminal capabilities, the maximum duration for which the terminal supports joint channel estimation for a specific uplink channel. The specific uplink channel may be PUSCH or PUCCH.

[0226] In another possible implementation, the terminal may determine, based on the terminal capabilities, the maximum duration for which the terminal supports joint channel estimation for a specific transmission mode of a specific uplink channel. The specific uplink channel may be PUSCH or PUCCH, and the specific transmission mode may include, but is not limited to, type A retransmission mode of PUSCH, type B retransmission mode of PUSCH, etc.

[0227] In step 302, report the first duration to the base station.

[0228] In a possible implementation, the terminal may report the first duration to the base station via an RRC message.

[0229] In step 303, determine the second duration based on the first duration.

[0230] In an embodiment of the present disclosure, the terminal may directly determine, based on the first duration reported to the base station, according to service conditions, channel quality between the terminal and the network-side device, etc., a second duration that is less than or equal to the first duration.

[0231] In step 304, report the second duration to the base station.

[0232] In a possible implementation, the terminal may report the second duration to the base station via the first UCI.

[0233] In an example, the value indicated by the bit value in the first information field of the first UCI is equal to the second duration.

[0234] Wherein, the first information field may be an information field for indicating the second duration, or the first information field may be an information field for indicating whether the second duration takes effect. Specifically, the first information field may be a specifically defined information field in the protocol for indicating the second duration or for indicating whether the second duration takes effect, or the first information field may be an information field that multiplexes and transmits other information. The present disclosure makes no limitation thereto.

[0235] In an embodiment of the present disclosure, the value indicated by the bit value of the first information field in the first UCI may be equal to the second duration.

[0236] In another example, the value indicated by the bit value of the first information field in the first UCI may be equal to the index value of the second duration, so that the number of bits occupied by the UCI can be reduced, the uplink signaling resources are saved, and the usability is high.

[0237] The above is only an exemplary illustration. In practical applications, the solution of reporting the second duration determined dynamically by the terminal for joint channel binding of the uplink channel to the base station through the UCI should fall within the protection scope of the present disclosure.

[0238] In another possible implementation manner, the terminal may report the second duration to the base station through the first MAC CE.

[0239] Similarly, the bit value included in the first MAC CE may directly indicate the second duration or indicate the index value of the second duration, and the present disclosure does not limit this.

[0240] In step 305, it is determined that the second duration takes effect.

[0241] In an embodiment of the present disclosure, the terminal's determination that the second duration takes effect may include but is not limited to at least one of the following: determining the starting effective moment of the second duration; determining the effective range of the second duration. The methods for determining the starting effective moment and the effective range will be introduced in subsequent embodiments and will not be introduced here for the time being.

[0242] In the above embodiment, the terminal may directly determine the second duration for joint channel estimation of the uplink channel based on the first duration, and then determine that the second duration takes effect. Thus, in the NTN network, the duration of joint channel estimation can be dynamically determined, the purpose of enhancing the uplink channel coverage in the NTN network is achieved, and the reliability of the uplink transmission in the NTN network is improved.

[0243] In some optional embodiments, determining that the second duration takes effect includes: determining the starting effective moment of the second duration.

[0244] Specifically, to determine the starting effective moment of the second duration, the following method may be adopted:

[0245] The first method is to determine the starting effective moment of the second duration based on the first moment when the terminal reports the effective indication information and the effective interval duration.

[0246] Refer to Figure 4 shown, Figure 4 is a flowchart of a duration determination method shown according to an embodiment, which can be executed by a terminal. The method may include the following steps:

[0247] In step 401, determine the first moment for reporting the effective indication information.

[0248] In an embodiment of the present disclosure, the terminal may report the effective indication information to the base station, and the effective indication information is used to indicate that the second duration becomes effective. The terminal determines the first moment for reporting the effective indication information.

[0249] In a possible implementation, the effective indication information may be used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0250] In a possible implementation, the effective indication information may be reported to the base station through the second UCI.

[0251] Optionally, the second UCI may be the same UCI as the first UCI, that is, the terminal reports the second duration and the effective indication information to the base station through the same UCI.

[0252] Specifically, the terminal may report the second duration to the base station through the first information field in the same UCI, and report the effective indication information to the base station through the second information field.

[0253] Wherein, the first information field may be an information field for indicating the second duration, or the first information field may be an information field for indicating whether the second duration becomes effective. Specifically, the first information field may be a specifically defined information field in the protocol for indicating the second duration or for indicating whether the second duration becomes effective, or the first information field may reuse an information field for transmitting other information, and the present disclosure does not limit this.

[0254] Wherein, the second information field may be an information field for indicating whether the second duration becomes effective. Correspondingly, the second information field may be the same information field as or different from the first information field, and the present disclosure does not limit this.

[0255] In an example, when the value indicated by the bit value of the first information field is equal to the second duration, or the value indicated by the bit value of the first information field is equal to the index value of the second duration, that is, when the bit value of the first information field is used to indicate a valid value, the terminal determines that the effective indication information has been reported to the base station.

[0256] In another example, the value indicated by the bit value of the first information field in the UCI is equal to the second duration, or the value indicated by the bit value of the first information field is equal to the index value of the second duration, and the bit value of the second information field in the same UCI is used to indicate that the second duration becomes effective.

[0257] Optionally, the second UCI may be different from the first UCI, that is, the terminal reports the second duration and the effectiveness indication information to the base station through different UCIs.

[0258] In another possible implementation, the terminal may report the effectiveness indication information to the base station through a second MAC CE.

[0259] Optionally, the second MAC CE and the first MAC CE may be the same MAC CE or different MAC CEs, and the present disclosure does not limit this.

[0260] In step 402, the effectiveness interval duration is determined.

[0261] In the embodiments of the present disclosure, at the first moment when the terminal reports the effectiveness indication information, the second duration may not necessarily take effect immediately. Therefore, a duration offset, that is, the effectiveness interval duration, needs to be determined based on the first moment. The effectiveness interval duration refers to the duration between the first moment when the effectiveness indication information is reported and the start effectiveness moment of the second duration.

[0262] In a possible implementation, the effectiveness interval duration may be determined based on a protocol convention.

[0263] In another possible implementation, the effectiveness interval duration may be determined by the terminal. Further, the terminal may report the effectiveness interval duration to the base station while reporting the effectiveness indication information.

[0264] It can be understood that the terminal may report the effectiveness indication information and the effectiveness interval duration to the base station through the same UCI or the same MAC CE.

[0265] Of course, the effectiveness interval duration may also be determined by the base station side, and the present disclosure does not limit this.

[0266] In step 403, a second moment after the first moment and spaced from the first moment by the effectiveness interval duration is determined.

[0267] For example, if the first moment is t1 and the effectiveness interval duration is t', then the second moment is t2 = t1 + t'.

[0268] In step 404, the second moment is determined as the start effectiveness moment of the second duration.

[0269] In the above embodiments, the terminal can dynamically determine the start effectiveness moment of the second duration based on the first moment when the terminal reports the effectiveness indication information and the effectiveness interval duration. The purpose of dynamically determining the duration of joint channel estimation in the NTN network is achieved. The present disclosure can perform uplink channel coverage enhancement in the NTN network, improving the reliability of uplink transmission in the NTN network.

[0270] In the second method, the third moment carried in the activation indication information is determined as the starting activation moment of the second duration.

[0271] Referring to Figure 5 as shown, Figure 5 FIG. 5 is a flowchart of a method for determining a duration according to an embodiment, which can be executed by a terminal. The method may include the following steps:

[0272] In step 501, an activation indication information is reported to the base station, and a third moment is carried in the activation indication information.

[0273] In an embodiment of the present disclosure, a terminal may report activation indication information to the base station. The activation indication information is used to indicate that the second duration becomes effective, and a third moment is carried in the activation indication information.

[0274] In a possible implementation manner, the activation indication information may be used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0275] In a possible implementation manner, the activation indication information may be reported to the base station through a second UCI.

[0276] Optionally, the second UCI may be the same UCI as the first UCI, that is, the terminal reports the second duration and the activation indication information to the base station through the same UCI.

[0277] Specifically, the terminal may report the second duration to the base station through a first information field in the same UCI, and report the activation indication information to the base station through a second information field.

[0278] Wherein, the first information field may be an information field for indicating the second duration, or the first information field may be an information field for indicating whether the second duration becomes effective. Specifically, the first information field may be a specifically defined information field in the protocol for indicating the second duration or for indicating whether the second duration becomes effective, or the first information field may be an information field for multiplexing and transmitting other information. The present disclosure does not limit this.

[0279] Wherein, the second information field may be an information field for indicating whether the second duration becomes effective. Correspondingly, the second information field may be the same information field as or different from the first information field. The present disclosure does not limit this.

[0280] In an example, when the value indicated by the bit value of the first information field is equal to the second duration, or the value indicated by the bit value of the first information field is equal to the index value of the second duration, that is, when the bit value of the first information field is used to indicate a valid value, the terminal determines that the activation indication information has been reported to the base station.

[0281] In another example, the value indicated by the bit value of the first information field in the UCI is equal to the second duration, or the value indicated by the bit value of the first information field is equal to the index value of the second duration. The bit value of the second information field in the same UCI is used to indicate that the second duration takes effect.

[0282] Optionally, the second UCI may be a different UCI from the first UCI, that is, the terminal reports the second duration and the effect indication information to the base station through different UCIs.

[0283] In another possible implementation, the terminal may report the effect indication information to the base station through a second MAC CE.

[0284] Optionally, the second MAC CE and the first MAC CE may be the same MAC CE or different MAC CEs, and the present disclosure does not limit this.

[0285] In step 502, the third moment is determined as the starting effective moment of the second duration.

[0286] In the above embodiments, the third moment carried in the effect indication information can be determined as the starting effective moment of the second duration, achieving the purpose of dynamically determining the duration of joint channel estimation in the NTN network. The present disclosure can enhance the uplink channel coverage in the NTN network and improve the reliability of uplink transmission in the NTN network.

[0287] In some optional embodiments, determining that the second duration takes effect includes: determining the effective range of the second duration.

[0288] In a possible implementation, the period between the starting effective moment of the second duration and the starting effective moment of a new second duration can be determined as the effective range of the second duration.

[0289] Specifically, the new second duration may not be equal to the second duration. That is, after the terminal determines the starting effective moment of the second duration, from the starting effective moment of this second duration until the starting effective moment of the new second duration determined by the terminal, this period can be used as the effective range of the second duration.

[0290] Among them, the method for determining the new second duration is similar to the method for determining the second duration in the above embodiments and will not be elaborated here. The method for determining the starting effective moment of the new second duration is similar to the method for determining the starting effective moment of the second duration in the above embodiments and will not be elaborated here either.

[0291] For example, if the starting effective moment of the second duration is t2 and the starting effective moment of the new second duration is t3, then the period from t2 to t3 can be used as the effective range of the second duration.

[0292] In another possible implementation, the period between the starting effective moment of the second duration and the completion of the first number of uplink transmissions is determined as the effective range of the second duration.

[0293] The first number can be the number of times agreed upon by the protocol, or the first number can be determined by the terminal, or the first number can also be determined by the base station. The present disclosure does not limit this.

[0294] The period from the starting effective moment of the second duration until the terminal completes the first number of uplink transmissions can be used as the effective range of the second duration.

[0295] For example, the starting effective moment of the second duration is t2, the first number is X times, where X is a positive integer, and the terminal completes X uplink transmissions at time t4. Then the terminal can determine the period from t2 to t4 as the effective range of the second duration.

[0296] In another possible implementation, the period between the starting effective moment of the second duration and the starting moment of the second duration's expiration is determined as the effective range of the second duration.

[0297] In the embodiments of the present disclosure, the terminal can report expiration indication information to the base station, and this expiration indication information is used to indicate the expiration of the second duration.

[0298] In a possible implementation, the expiration indication information can be used to indicate that the terminal is unable to support maintaining power consistency and / or maintaining phase continuity within the second duration.

[0299] In a possible implementation, the terminal can report this expiration indication information to the base station through the third UCI.

[0300] It should be noted that the third UCI can be the same UCI as the first UCI.

[0301] For example, the terminal can report the second duration through the UCI and report the expiration indication information to the base station through the same UCI, so that the base station determines the expired second duration.

[0302] Of course, the third UCI can be a different UCI from the first UCI.

[0303] For example, the terminal may report a second duration through a first UCI. Further, when the terminal determines that the second duration has expired after a certain period of time, it may report an expiration indication message to the base station through a third UCI different from the first UCI, and the base station determines that the second duration reported by the terminal has expired.

[0304] In another possible implementation, the terminal may report the expiration indication message to the base station through a third MAC CE.

[0305] It can be understood that the third MAC CE may be the same MAC CE as the first MAC CE or a different MAC CE, and the present disclosure does not limit this.

[0306] In an example, when the terminal reports the expiration indication message through a third UCI, it may set the bit value of the first information field in the third UCI to an invalid value, where the invalid value includes, but is not limited to, all bits being 0, all bits being 1, or indicating a non - numerical value, such as a string, etc.

[0307] Among them, the string may be "false", "null", etc., and the present disclosure does not limit this.

[0308] Among them, the first information field may be an information field for indicating the second duration, or the first information field may be an information field for indicating whether the second duration is effective. Specifically, the first information field may be a protocol - specified information field dedicated to indicating the second duration or indicating whether the second duration is effective, or the first information field may reuse an information field for transmitting other information, and the present disclosure does not limit this.

[0309] In the embodiments of the present disclosure, the second duration may not expire at the same time as the expiration indication message is reported. Therefore, the terminal can also determine an expiration interval duration, which refers to the duration between the fourth moment when the expiration indication message is reported and the starting expiration moment of the second duration.

[0310] In an example, the expiration interval duration may be determined based on a protocol - specified method.

[0311] In another example, the expiration interval duration may be determined by the terminal. Further, the terminal may report the expiration interval duration to the base station when reporting the expiration indication message.

[0312] It can be understood that the terminal may report the expiration indication message and the expiration interval duration to the base station through the same UCI or the same MAC CE.

[0313] Of course, the effective interval duration may also be determined by the base station side, and the present disclosure does not limit this.

[0314] The terminal may determine the start time of expiration as the fifth moment after the fourth moment and at an interval of an expiration interval duration from the fourth moment. Among them, the fourth moment is the moment when the terminal reports the expiration indication information.

[0315] Alternatively, when the terminal reports the expiration indication information to the base station, the expiration indication information may carry a sixth moment, and the terminal determines the sixth moment as the start time of expiration of the second duration.

[0316] In the implementation of the present disclosure, the terminal may determine the period from the start effective moment of the second duration to the start time of expiration of the second duration as the effective range of the second duration.

[0317] For example, if the start effective moment of the second duration is t2 and the start time of expiration of the second duration is t5, the terminal may determine the period from t2 to t5 as the effective range of the second duration.

[0318] In another possible implementation, the terminal may determine the period that lasts for a third duration starting from the start effective moment of the second duration as the effective range of the second duration.

[0319] In an example, the number of time units occupied by the third duration may be agreed upon by the protocol. Among them, the time unit may be in units of slot, symbol, span, etc., and the present disclosure does not limit this. Among them, one span includes multiple consecutive symbols.

[0320] In another example, the terminal may determine the number of time units occupied by the third duration, and the terminal sends a notification message to the base station. The notification message is used to notify the base station of the number of time units occupied by the third duration. Among them, the time unit may be in units of slot, symbol, span, etc., and the present disclosure does not limit this. Among them, one span includes multiple consecutive symbols.

[0321] Optionally, the terminal may report the number of time units occupied by the second duration and the third duration to the base station through the same UCI or the same MAC CE.

[0322] In the embodiment of the present disclosure, the terminal may determine the period that lasts for a third duration starting from the start effective moment of the second duration as the effective range of the second duration.

[0323] For example, if the start effective moment of the second duration is t2 and the third duration occupies n slots with a corresponding duration of n, the terminal may determine the period from the t2 moment to the (t2 + n) moment as the effective range of the second duration.

[0324] The above is only an exemplary illustration, and other solutions for determining the effective range of the second duration should also fall within the protection scope of the present disclosure.

[0325] In the above embodiments, the terminal can quickly and effectively determine the effective range of the second duration, achieving the purpose of dynamically determining the duration of joint channel estimation in the NTN network. The present disclosure can enhance the uplink channel coverage in the NTN network and improve the reliability of uplink transmission in the NTN network.

[0326] In some alternative embodiments, determining the effectiveness of the second duration in the present disclosure may specifically include: determining that the joint channel estimation for the uplink channel is effective within the second duration, and the uplink channel includes but is not limited to PUSCH and / or PUCCH.

[0327] Alternatively, determining the effectiveness of the second duration in the present disclosure may specifically include: determining that the joint channel estimation for the first type of uplink channel is effective within the second duration. Here, the first type of uplink channel may be PUSCH, or the first type of uplink channel may be PUCCH.

[0328] Alternatively, determining the effectiveness of the second duration in the present disclosure may specifically include: determining that the joint channel estimation for the first transmission mode of the first type of uplink channel is effective within the second duration.

[0329] Here, the first type of uplink channel may be PUSCH, and the first transmission mode of the first type of uplink channel may be the type A retransmission mode of PUSCH, the type B retransmission mode of PUSCH, etc.

[0330] In the above embodiments, uplink channel coverage enhancement can be performed in the NTN network, improving the reliability of uplink transmission in the NTN network.

[0331] Next, the duration determination method provided by the present disclosure will be introduced from the base station side.

[0332] Embodiments of the present disclosure provide a duration determination method. Referring to Figure 6 shown, Figure 6 is a flowchart of a duration determination method shown according to an embodiment, which can be executed by a base station. The method may include the following steps:

[0333] In step 601, receive the first duration reported by the terminal, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation for the uplink channel.

[0334] In a possible implementation manner, the base station may receive the first duration reported by the terminal to the base station through an RRC message.

[0335] In step 602, determine a second duration for performing joint channel estimation on the uplink channel, where the second duration is less than or equal to the first duration.

[0336] In a possible implementation, after the terminal reports the first duration to the base station, the base station determines the length L of the TDW for binding the demodulation reference signal DMRS based on the first duration. L is the binding duration of the demodulation reference signal DMRS, and this binding duration can be less than or equal to the first duration.

[0337] Furthermore, the base station can send down the binding duration of the demodulation reference signal DMRS.

[0338] In an example, the base station can send the binding duration to the terminal through an RRC message, and the binding duration is less than or equal to the first duration.

[0339] In an example, when the number of the binding durations is 1 and the base station does not receive the second duration reported by the terminal, the base station determines the binding duration as the second duration.

[0340] In another example, when the number of the binding durations is 1, the base station receives the second duration reported by the terminal. This second duration is determined by the terminal based on the binding duration, and the second duration is less than or equal to the binding duration.

[0341] In another example, when the number of the binding durations sent by the base station to the terminal is multiple, the base station can receive the second duration reported by the terminal, and this second duration is one of the multiple binding durations.

[0342] In another possible implementation, after receiving the first duration reported by the terminal, the base station can directly receive the second duration reported by the terminal. The second duration is determined by the terminal based on the first duration, and the second duration is less than or equal to the first duration.

[0343] In step 603, determine that the second duration takes effect.

[0344] In the embodiments of the present disclosure, the base station's determination that the second duration takes effect may include but is not limited to at least one of the following: determining the starting effective moment of the second duration; determining the effective range of the second duration. The methods for determining the starting effective moment and the effective range will be introduced in subsequent embodiments and will not be introduced here for the time being.

[0345] In the above embodiments, the duration of joint channel estimation can be dynamically determined in the NTN network, achieving the purpose of enhancing the uplink channel coverage in the NTN network and improving the reliability of uplink transmission in the NTN network.

[0346] In some alternative embodiments, refer to Figure 7 as shown.Figure 7 It is a flowchart of a duration determination method shown according to an embodiment, which can be executed by a base station. The method may include the following steps:

[0347] In step 701, receive a first duration reported by a terminal, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation for an uplink channel.

[0348] In a possible implementation, the base station may receive the first duration reported by the terminal to the base station through an RRC message.

[0349] In step 702, based on the first duration, determine the binding duration of the demodulation reference signal DMRS, where the binding duration is less than or equal to the first duration.

[0350] In an embodiment of the present disclosure, the base station may determine the length L of the TDW for binding the demodulation reference signal DMRS based on the first duration reported by the terminal. L is the binding duration of the demodulation reference signal DMRS, and this binding duration may be less than or equal to the first duration.

[0351] In step 703, send the binding duration to the terminal.

[0352] In an example, the base station may send the binding duration to the terminal through an RRC message.

[0353] In an example, the number of binding durations may be 1.

[0354] In another example, the number of binding durations may be multiple.

[0355] For example, multiple binding durations include L1, L2, L3, and L4.

[0356] In step 704, based on the binding duration, determine a second duration for joint channel estimation for the uplink channel, where the second duration is less than or equal to the binding duration.

[0357] In an example, when the number of binding durations is 1 and the base station does not receive the second duration reported by the terminal, the base station determines the binding duration as the second duration.

[0358] In another example, when the number of binding durations is 1, the base station receives the second duration reported by the terminal, and this second duration is determined by the terminal based on the binding duration and is less than or equal to the binding duration.

[0359] In another example, when the number of binding durations sent by the base station to the terminal is multiple, the base station may receive the second duration reported by the terminal, and this second duration is one of the multiple binding durations.

[0360] In a possible implementation, the base station may receive the second duration reported by the terminal through the first UCI.

[0361] In an example, the value indicated by the bit value of the first information field in the first UCI is equal to the second duration.

[0362] Among them, the first information field may be an information field for indicating the second duration, or the first information field may be an information field for indicating whether the second duration takes effect. Specifically, the first information field may be a protocol-agreed dedicated information field for indicating the second duration or for indicating whether the second duration takes effect, or the first information field may be an information field that multiplexes and transmits other information. The present disclosure does not limit this.

[0363] In the embodiments of the present disclosure, the value indicated by the bit value of the first information field in the first UCI may be equal to the second duration.

[0364] For example, the second duration is t milliseconds, and the value indicated by the bit value of the first information field in the first UCI is t.

[0365] In another example, the value indicated by the bit value of the first information field in the first UCI may be equal to the index value of the second duration, so as to reduce the number of bits occupied by the UCI, save uplink signaling resources, and have high availability.

[0366] For example, the base station side sends multiple binding durations to the terminal, including L1, L2, L3, L4. The terminal determines that the second duration is L2. Then the value indicated by the bit value of the first information field in the first UCI is the index value of the second duration. Here, the index value of the second duration is 2. Therefore, the value indicated by the bit value of the first information field in the first UCI is also 2.

[0367] The above is only an exemplary illustration. In actual applications, the solution of reporting the second duration determined dynamically by the terminal for joint channel binding of the uplink channel through the UCI should fall within the protection scope of the present disclosure.

[0368] In another possible implementation, the base station may receive the second duration reported by the terminal through the first MAC CE.

[0369] Similarly, the bit value included in the first MAC CE may directly indicate the second duration, or indicate the index value of the second duration. The present disclosure does not limit this.

[0370] In step 705, it is determined that the second duration takes effect.

[0371] In an embodiment of the present disclosure, after determining the second duration, the base station may determine that the second duration becomes effective. Determining that the second duration becomes effective may include, but is not limited to, at least one of the following: determining the starting effective moment of the second duration; determining the effective range of the second duration.

[0372] The methods for determining the starting effective moment and the effective range will be introduced in subsequent embodiments and will not be introduced here for the time being.

[0373] In the above embodiment, based on the bundling duration of the demodulation reference signal DMRS determined by the base station, the second duration for joint channel estimation of the uplink channel can be determined, and then it can be determined that the second duration becomes effective. Thus, in the NTN network, the duration of joint channel estimation can be dynamically determined, achieving the purpose of enhancing the uplink channel coverage in the NTN network and improving the reliability of uplink transmission in the NTN network.

[0374] In some alternative embodiments, referring to Figure 8 as shown, Figure 8 is a flowchart of a duration determination method shown according to an embodiment, which can be executed by a base station. The method may include the following steps:

[0375] In step 801, receive the first duration reported by the terminal, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation of the uplink channel.

[0376] In a possible implementation, the base station may receive the first duration reported by the terminal to the base station through an RRC message.

[0377] In step 802, receive the second duration reported by the terminal, where the second duration is less than or equal to the first duration.

[0378] In an embodiment of the present disclosure, the second duration is determined by the terminal based on the first duration.

[0379] In a possible implementation, the base station may receive the second duration reported by the terminal through the first UCI.

[0380] In an example, the value indicated by the bit value in the first information field of the first UCI is equal to the second duration.

[0381] Among them, the first information field may be an information field for indicating the second duration, or the first information field may be an information field for indicating whether the second duration becomes effective. Specifically, the first information field may be a specifically defined information field in the protocol for indicating the second duration or for indicating whether the second duration becomes effective, or the first information field may be an information field that multiplexes and transmits other information. The present disclosure does not limit this.

[0382] In the embodiments of the present disclosure, the value indicated by the bit value of the first information field in the first UCI may be equal to the second duration.

[0383] For example, the second duration is t milliseconds, and the value indicated by the bit value of the first information field in the first UCI is t.

[0384] In another example, the value indicated by the bit value of the first information field in the first UCI may be equal to the index value of the second duration, so that the number of bits occupied by the UCI can be reduced, the uplink signaling resources are saved, and the usability is high.

[0385] In another possible implementation, the base station may receive the second duration reported by the terminal through the first MAC CE.

[0386] Similarly, the bit value included in the first MAC CE may directly indicate the second duration or the index value of the second duration, and the present disclosure does not limit this.

[0387] In step 803, it is determined that the second duration takes effect.

[0388] In the embodiments of the present disclosure, after determining the second duration, the base station may determine that the second duration takes effect. Determining that the second duration takes effect may include but is not limited to at least one of the following: determining the starting effective moment of the second duration; determining the effective range of the second duration.

[0389] The methods for determining the starting effective moment and the effective range will be introduced in subsequent embodiments and will not be introduced here for the time being.

[0390] In the above embodiments, the terminal may directly determine the second duration for joint channel estimation of the uplink channel based on the first duration, and the base station determines the second duration based on the report of the terminal, and then determines that the second duration takes effect. Thus, in the NTN network, the duration of joint channel estimation can be dynamically determined, the purpose of enhancing the uplink channel coverage in the NTN network is achieved, and the reliability of the uplink transmission in the NTN network is improved.

[0391] In some optional embodiments, determining that the second duration takes effect includes: determining the starting effective moment of the second duration.

[0392] Specifically, to determine the starting effective moment of the second duration, the following method may be adopted:

[0393] The first method is to determine the starting effective moment of the second duration based on the first moment when the terminal reports the effective indication information and the effective interval duration.

[0394] Referring to Figure 9 as shown, Figure 9It is a flowchart of a duration determination method shown according to an embodiment, which can be executed by a base station. The method may include the following steps:

[0395] In step 901, determine the first moment when the terminal reports the effective indication information.

[0396] In the embodiments of the present disclosure, the effective indication information is used to indicate that the second duration becomes effective. The base station determines the first moment when the terminal reports the effective indication information.

[0397] In a possible implementation manner, the effective indication information may be used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0398] In a possible implementation manner, the base station may receive the effective indication information reported by the terminal through the second UCI.

[0399] Optionally, the second UCI may be the same UCI as the first UCI, that is, the base station receives the second duration and the effective indication information reported by the terminal through the same UCI.

[0400] Specifically, the terminal may report the second duration to the base station through the first information field in the same UCI, and report the effective indication information to the base station through the second information field.

[0401] Wherein, the first information field may be an information field for indicating the second duration, or the first information field may be an information field for indicating whether the second duration becomes effective. Specifically, the first information field may be a specifically defined information field in the protocol for indicating the second duration or for indicating whether the second duration becomes effective, or the first information field may reuse the information field for transmitting other information. The present disclosure does not limit this.

[0402] Wherein, the second information field may be an information field for indicating whether the second duration becomes effective. Correspondingly, the second information field may be the same information field as or different from the first information field. The present disclosure does not limit this.

[0403] In an example, when the value indicated by the bit value of the first information field is equal to the second duration, or the value indicated by the bit value of the first information field is equal to the index value of the second duration, that is, when the bit value of the first information field is used to indicate a valid value, the terminal determines that it has reported the effective indication information to the base station.

[0404] In another example, the value indicated by the bit value of the first information field in the UCI is equal to the second duration, or the value indicated by the bit value of the first information field is equal to the index value of the second duration, and the bit value of the second information field in the same UCI is used to indicate that the second duration becomes effective.

[0405] Optionally, the second UCI may be different from the first UCI, that is, the terminal reports the second duration and the effectiveness indication information to the base station through different UCIs.

[0406] In another possible implementation, the base station may receive the effectiveness indication information reported by the terminal through the second MAC CE.

[0407] Optionally, the second MAC CE and the first MAC CE may be the same MAC CE or different MAC CEs, and the present disclosure does not limit this.

[0408] In step 902, determine the effectiveness interval duration.

[0409] In the embodiments of the present disclosure, at the first moment when the effectiveness indication information is reported, the second duration may not necessarily take effect immediately. Therefore, it is necessary to determine a duration offset on the basis of the first moment, that is, the effectiveness interval duration. The effectiveness interval duration refers to the duration between the first moment when the effectiveness indication information is reported and the starting effectiveness moment of the second duration.

[0410] In a possible implementation, the base station may determine the effectiveness interval duration based on a protocol-agreed manner.

[0411] In another possible implementation, the effectiveness interval duration may be determined by the terminal. Further, the base station receives the effectiveness interval duration reported by the terminal. Optionally, the base station may receive the effectiveness indication information and the effectiveness interval duration reported by the terminal at the same time.

[0412] It can be understood that the base station may receive the effectiveness indication information and the effectiveness interval duration reported by the terminal through the same UCI or the same MAC CE.

[0413] Of course, the effectiveness interval duration may also be determined by the base station side, and the present disclosure does not limit this.

[0414] In step 903, determine a second moment after the first moment and separated from the first moment by the effectiveness interval duration.

[0415] For example, if the first moment is t1 and the effectiveness interval duration is t', then the second moment is t2 = t1 + t'.

[0416] In step 904, determine the second moment as the starting effectiveness moment of the second duration.

[0417] In the above embodiments, the starting effective moment of the second duration can be dynamically determined based on the first moment when the terminal reports the effective indication information and the effective interval duration. The purpose of dynamically determining the duration of joint channel estimation in the NTN network is achieved. The present disclosure can enhance the uplink channel coverage in the NTN network and improve the reliability of uplink transmission in the NTN network.

[0418] In the second method, the third moment carried in the effective indication information is determined as the starting effective moment of the second duration.

[0419] Referring to Figure 10 as shown, Figure 10 FIG. is a flowchart of a method for determining a duration according to an embodiment, which can be executed by a base station. The method may include the following steps:

[0420] In step 1001, the base station receives the effective indication information reported by the terminal, and the third moment is carried in the effective indication information.

[0421] In an embodiment of the present disclosure, the base station can receive the effective indication information reported by the terminal. The effective indication information is used to indicate the effectiveness of the second duration, and the third moment is carried in the effective indication information.

[0422] In a possible implementation, the effective indication information can be used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0423] In a possible implementation, the base station can receive the effective indication information reported by the terminal through the second UCI.

[0424] Optionally, the second UCI can be the same UCI as the first UCI, that is, the terminal reports the second duration and the effective indication information to the base station through the same UCI.

[0425] Specifically, the base station can receive the second duration reported by the terminal through the first information field in the same UCI, and the effective indication information reported through the second information field.

[0426] Among them, the first information field can be an information field for indicating the second duration, or the first information field can be an information field for indicating whether the second duration is effective. Specifically, the first information field can be a specifically defined information field in the protocol for indicating the second duration or for indicating whether the second duration is effective, or the first information field can be an information field that multiplexes and transmits other information. The present disclosure does not limit this.

[0427] Among them, the second information field can be an information field for indicating whether the second duration is effective. Correspondingly, the second information field can be the same information field as or different from the first information field. The present disclosure does not limit this.

[0428] In one example, when the value indicated by the bit value of the first information field is equal to the second duration, or the value indicated by the bit value of the first information field is equal to the index value of the second duration, that is, when the bit value of the first information field is used to indicate a valid value, the terminal determines that the effective indication information has been reported to the base station.

[0429] In another example, the value indicated by the bit value of the first information field in the UCI is equal to the second duration, or the value indicated by the bit value of the first information field is equal to the index value of the second duration, and the bit value of the second information field in the same UCI is used to indicate the effectiveness of the second duration.

[0430] Optionally, the second UCI may be different from the first UCI, that is, the terminal reports the second duration and the effective indication information to the base station through different UCIs.

[0431] In another possible implementation, the base station may receive the effective indication information reported by the terminal through the second MAC CE.

[0432] Optionally, the second MAC CE and the first MAC CE may be the same MAC CE or different MAC CEs, and the present disclosure does not limit this.

[0433] In step 1002, the third moment is determined as the starting effective moment of the second duration.

[0434] In the above embodiments, the third moment carried in the effective indication information can be determined as the starting effective moment of the second duration, achieving the purpose of dynamically determining the duration of joint channel estimation in the NTN network. The present disclosure can enhance the uplink channel coverage in the NTN network and improve the reliability of uplink transmission in the NTN network.

[0435] In some optional embodiments, determining the effectiveness of the second duration includes: determining the effective range of the second duration.

[0436] In a possible implementation, the period between the starting effective moment of the second duration and the starting effective moment of the new second duration may be determined as the effective range of the second duration.

[0437] Specifically, the new second duration may not be equal to the second duration. That is, after the base station determines the starting effective moment of the second duration, from the starting effective moment of this second duration until the starting effective moment of the new second duration determined by the base station, this period can be used as the effective range of the second duration.

[0438] Among them, the method for determining the new second duration is similar to the method for determining the second duration in the above embodiments, and will not be elaborated here. The method for determining the starting effective moment of the new second duration is similar to the method for determining the starting effective moment of the second duration in the above embodiments, and will not be elaborated here either.

[0439] In another possible implementation, the period between the starting effective moment of the second duration and the completion of the first number of uplink transmissions is determined as the effective range of the second duration.

[0440] The first number can be the number agreed upon by the protocol, or the first number can be determined by the terminal, or the first number can also be determined by the base station. The present disclosure does not limit this.

[0441] The base station determines the period from the starting effective moment of the second duration to the completion of the first number of uplink transmissions by the terminal as the effective range of the second duration.

[0442] In another possible implementation, the period between the starting effective moment of the second duration and the starting moment of the expiration of the second duration is determined as the effective range of the second duration.

[0443] In the embodiments of the present disclosure, the base station may receive the expiration indication information reported by the terminal, and this expiration indication information is used to indicate the expiration of the second duration.

[0444] In one possible implementation, the expiration indication information may be used to indicate that the terminal is unable to support maintaining power consistency and / or maintaining phase continuity within the second duration.

[0445] In one possible implementation, the base station may receive the expiration indication information reported by the terminal through the third UCI.

[0446] It should be noted that the third UCI may be the same UCI as the first UCI.

[0447] For example, the base station may receive the second duration reported by the terminal through the UCI, and the same UCI also includes the expiration indication information.

[0448] Of course, the third UCI may be a different UCI from the first UCI.

[0449] For example, the base station may receive the second duration reported by the terminal through the first UCI. Further, after a period of time, the base station may receive the expiration indication information reported by the terminal through the third UCI different from the first UCI, and the base station determines the expiration of the second duration reported by the terminal before based on this expiration indication information.

[0450] In another possible implementation, the base station may receive the failure indication information reported by the terminal through the third MAC CE.

[0451] It can be understood that the third MAC CE may be the same MAC CE as the first MAC CE or a different MAC CE, and the present disclosure does not limit this.

[0452] In an example, when the base station receives the failure indication information reported by the terminal through the third UCI, if it is determined that the bit value of the first information field in the third UCI is an invalid value, the base station determines that the invalid indication information is received. Among them, the invalid value includes, but is not limited to, all bits being 0, all bits being 1, or indicating a non-numerical value, such as a string. Among them, the string may be "false", "null", etc., and the present disclosure does not limit this.

[0453] Among them, the first information field may be an information field for indicating the second duration, or the first information field may be an information field for indicating whether the second duration takes effect. Specifically, the first information field may be a protocol-agreed information field specifically for indicating the second duration or for indicating whether the second duration takes effect, or the first information field may be an information field that multiplexes and transmits other information, and the present disclosure does not limit this.

[0454] In the embodiments of the present disclosure, the second duration may not expire at the same time as the failure indication information is reported. Therefore, the base station can also determine a failure interval duration, which refers to the duration between the fourth moment when the failure indication information is reported and the start failure moment of the second duration.

[0455] In an example, the failure interval duration can be determined based on a protocol-agreed manner.

[0456] In another example, the failure interval duration can be determined by the terminal. Further, the base station may receive the failure indication information and the failure interval duration reported by the terminal at the same time.

[0457] It can be understood that the base station may receive the failure indication information and the failure interval duration reported by the terminal through the same UCI or the same MAC CE.

[0458] Of course, the effective interval duration can also be determined by the base station side, and the present disclosure does not limit this.

[0459] The base station may determine the start failure moment as the fifth moment after the fourth moment and at an interval of the failure interval duration from the fourth moment. Among them, the fourth moment is the moment when the terminal reports the failure indication information.

[0460] Alternatively, a sixth moment may be carried in the failure indication information, and the base station determines the sixth moment as the failure start moment of the second duration.

[0461] In the implementation of the present disclosure, the base station may determine the period from the start effective moment of the second duration to the failure start moment of the second duration as the effective range of the second duration.

[0462] In another possible implementation manner, the base station may determine the period that lasts for a third duration starting from the start effective moment of the second duration as the effective range of the second duration.

[0463] In an example, the number of time units occupied by the third duration may be agreed upon by the protocol. Wherein, the time unit may be in units of slot, symbol, span, etc., and the present disclosure does not limit this. Wherein, one span includes multiple consecutive symbols.

[0464] In another example, the number of time units occupied by the third duration may be determined by the terminal, and the terminal sends a notification message to the base station, and the notification message is used to notify the base station of the number of time units occupied by the third duration. Wherein, the time unit may be in units of slot, symbol, span, etc., and the present disclosure does not limit this. Wherein, one span includes multiple consecutive symbols.

[0465] Optionally, the base station may receive the number of time units occupied by the second duration and the third duration reported by the terminal through the same UCI or the same MAC CE.

[0466] In the embodiments of the present disclosure, the base station may determine the period that lasts for a third duration starting from the start effective moment of the second duration as the effective range of the second duration.

[0467] The above is only an exemplary illustration, and other solutions for determining the effective range of the second duration should also fall within the protection scope of the present disclosure.

[0468] In the above embodiments, the effective range of the second duration can be determined quickly and effectively, achieving the purpose of dynamically determining the duration of joint channel estimation in the NTN network. The present disclosure can enhance the uplink channel coverage in the NTN network and improve the reliability of uplink transmission in the NTN network.

[0469] In some optional embodiments, determining the effectiveness of the second duration in the present disclosure may specifically include: determining that the joint channel estimation for the uplink channel is effective within the second duration, and the uplink channel includes but is not limited to PUSCH and / or PUCCH.

[0470] Alternatively, determining that the second duration becomes effective in the present disclosure may specifically include: determining that the joint channel estimation performed on the first type of uplink channel becomes effective within the second duration. The first type of uplink channel here may be PUSCH, or the first type of uplink channel may be PUCCH.

[0471] Alternatively, determining that the second duration becomes effective in the present disclosure may specifically include: determining that the joint channel estimation performed on the first transmission mode of the first type of uplink channel becomes effective within the second duration.

[0472] The first type of uplink channel here may be PUSCH, and the first transmission mode of the first type of uplink channel may be the type A retransmission mode of PUSCH, the type B retransmission mode of PUSCH, etc.

[0473] For ease of understanding, the solution of the present disclosure is further illustrated by examples as follows.

[0474] The present disclosure provides a method for dynamically determining the duration of joint channel estimation for an uplink channel. Among them, the uplink channel may be PUSCH or PUCCH. Further, it may be a specific transmission mode for a specific channel, such as the PUSCH type A retransmission mode and the PUSCH type B retransmission mode.

[0475] In a possible implementation manner, in the present disclosure, the terminal may report terminal capabilities through an RRC message, that is, report a first duration to the base station. The first duration is the maximum continuous duration that the terminal supports for joint channel estimation for the uplink channel. The first duration may be the maximum continuous duration that the terminal supports for maintaining power consistency and / or phase continuity.

[0476] The base station may send the length L of TDW, that is, the binding duration of the demodulation reference signal DMRS, to the terminal through an RRC message.

[0477] The terminal may determine that the second duration for joint channel estimation for the uplink channel is equal to the binding duration.

[0478] Further, the terminal may send effective indication information to the base station through a second UCI or a second MAC CE. The effective indication information is used to indicate that the second duration becomes effective.

[0479] Specifically, the effective indication information is further used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0480] In another possible implementation, in the present disclosure, the terminal can report terminal capabilities through an RRC message, that is, report a first duration to the base station, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation for the uplink channel. The first duration can be the maximum continuous duration that the terminal supports for maintaining power consistency and / or phase continuity.

[0481] The base station can send the length L of the TDW, that is, the binding duration of the demodulation reference signal DMRS, to the terminal through an RRC message.

[0482] The terminal can determine that the second duration for joint channel estimation for the uplink channel is equal to the binding duration.

[0483] Further, the terminal can send an activation indication message to the base station through a second UCI or a second MAC CE, and the activation indication message is used to indicate that the second duration becomes effective.

[0484] Specifically, the activation indication message is further used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0485] Further, the terminal can send a deactivation indication message to the base station through a third UCI or a third MAC CE, and the deactivation indication message is used to indicate that the second duration becomes invalid.

[0486] Specifically, the deactivation indication message is further used to indicate that the terminal no longer supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0487] In another possible implementation, in the present disclosure, the terminal can report terminal capabilities through an RRC message, that is, report a first duration to the base station, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation for the uplink channel. The first duration can be the maximum continuous duration that the terminal supports for maintaining power consistency and / or phase continuity.

[0488] The base station can send the length L of the TDW, that is, the binding duration of the demodulation reference signal DMRS, to the terminal through an RRC message.

[0489] The terminal can determine a second duration Lx for joint channel estimation for the uplink channel, and the second duration Lx can be less than or equal to the binding duration L.

[0490] Further, the terminal can report the second duration Lx to the base station through a first UCI or a first MAC CE. The terminal can also send an activation indication message to the base station through a second UCI or a second MAC CE, and the activation indication message is used to indicate that the second duration becomes effective.

[0491] Among them, the second UCI and the first UCI can be the same UCI or different UCIs, or the second MAC CE and the first MAC CE can be the same MAC CE or different MAC CEs. The present disclosure does not limit this.

[0492] Specifically, the effective indication information is further used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0493] Exemplarily, the value indicated by the bit value of the first information field in the first UCI is equal to the second duration, or the value indicated by the bit value of the first information field in the first UCI is equal to the index value of the second duration.

[0494] For example, the base station indicates multiple binding durations, including L1, L2, L3, and L4, through an RRC message. The terminal can select one from {L1, L2, L3, L4}. Assuming that L2 is selected, the terminal can report the specific duration value of L2 to the base station through the first UCI or the first MAC CE, or can report the index value of L2.

[0495] In another possible implementation, in the present disclosure, the terminal can report terminal capabilities through an RRC message, that is, report the first duration to the base station. The first duration is the maximum continuous duration that the terminal supports for joint channel estimation for the uplink channel. The first duration can be the maximum continuous duration that the terminal supports for maintaining power consistency and / or phase continuity.

[0496] The base station can send the length L of the TDW, that is, the binding duration of the demodulation reference signal DMRS, to the terminal through an RRC message.

[0497] The terminal can determine the second duration Lx for joint channel estimation for the uplink channel. The second duration Lx can be less than or equal to the binding duration L.

[0498] Further, the terminal can report the second duration Lx to the base station through the first UCI or the first MAC CE. The terminal can also send effective indication information to the base station through the second UCI or the second MAC CE. The effective indication information is used to indicate that the second duration takes effect.

[0499] Among them, the second UCI and the first UCI can be the same UCI or different UCIs, or the second MAC CE and the first MAC CE can be the same MAC CE or different MAC CEs. The present disclosure does not limit this.

[0500] Specifically, the effective indication information is further used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0501] Exemplarily, the value indicated by the bit value of the first information field in the first UCI is equal to the second duration, or the value indicated by the bit value of the first information field in the first UCI is equal to the index value of the second duration.

[0502] Further, the terminal may send failure indication information to the base station through a third UCI or a third MAC CE, where the failure indication information is used to indicate that the second duration is invalid.

[0503] Specifically, the failure indication information is also used to indicate that the terminal no longer supports maintaining power consistency and / or maintaining phase continuity within the second time period.

[0504] The third UCI and the first UCI may be the same UCI or different UCIs, or the third MAC CE and the first MAC CE may be the same MAC CE or different MAC CEs, which is not limited in the present disclosure.

[0505] Exemplarily, when the terminal reports the second duration Lx to the base station through the first UCI, if the bit value of the first information field in the first UCI is set to a valid value, such as a specific duration value of the second duration Lx or an index value of the second duration Lx, it can simultaneously indicate that the second duration is effective. That is, the terminal only needs to report the second duration to achieve the purpose of synchronously reporting the second duration and the effectiveness indication information.

[0506] Exemplarily, when the terminal reports the second duration Lx to the base station through the first UCI, if the bit value of the first information field in the first UCI is set to an invalid value, for example, the bit value of the first information field is all 0, or all 1, or a non-numeric value, it is equivalent to reporting failure indication information to the base station.

[0507] In another possible implementation, in the present disclosure, the terminal may report the terminal capability through an RRC message, that is, report the first duration to the base station, where the first duration is the maximum duration for which the terminal supports joint channel estimation for an uplink channel. The first duration may be the maximum duration for which the terminal supports maintaining power consistency and / or phase continuity.

[0508] Further, the terminal reports the second duration Lx to the base station through the first UCI or the first MAC CE. The second duration is determined by the terminal based on the first duration, and the second duration is less than or equal to the first duration. The specific determination method has been introduced in the above embodiment and will not be repeated here.

[0509] In the above implementation, both the terminal and the base station can determine that the second duration takes effect, including: determining the starting effective moment of the second duration; and / or determining the effective range of the second duration.

[0510] When determining the starting effective moment of the second duration, the starting effective moment of the second duration can be determined based on the first moment when the terminal reports the effective indication information and the effective interval duration, or the third moment carried in the effective indication information can be determined as the starting effective moment of the second duration.

[0511] When determining the effective range of the second duration, the period between the starting effective moment of the second duration and the starting effective moment of the new second duration can be determined as the effective range of the second duration, or the period between the starting effective moment of the second duration and the completion of the first number of uplink transmissions can be determined as the effective range of the second duration, or the period between the starting effective moment of the second duration and the starting moment of the expiration of the second duration can be determined as the effective range of the second duration, or the period lasting for the third duration starting from the starting effective moment of the second duration can be determined as the effective range of the second duration.

[0512] For the specific implementation, reference can be made to the embodiments on the terminal side and the base station side, which will not be elaborated here one by one.

[0513] In the above embodiments, in the NTN network, the duration of joint channel estimation can be dynamically determined, achieving the purpose of enhancing the uplink channel coverage in the NTN network and improving the reliability of uplink transmission in the NTN network.

[0514] Corresponding to the foregoing embodiments of the application function implementation method, the present disclosure also provides embodiments of an application function implementation apparatus.

[0515] Refer to Figure 11 , Figure 11 which is a block diagram of a terminal shown according to an exemplary embodiment, including:

[0516] A processing module 1101, configured to determine a first duration, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation for an uplink channel;

[0517] A sending module 1102, configured to report the first duration to the base station;

[0518] The processing module 1101 is further configured to determine a second duration for joint channel estimation for the uplink channel, where the second duration is less than or equal to the first duration;

[0519] The processing module 1101 is further configured to determine that the second duration takes effect.

[0520] Optionally, the apparatus further comprises:

[0521] a receiving module, configured to receive the binding duration of the demodulation reference signal DMRS sent by the base station, where the binding duration is less than or equal to the first duration;

[0522] The processing module is further configured to perform any one of the following:

[0523] when the number of the binding durations is 1, determine the second duration that is less than or equal to the binding duration;

[0524] when the number of the binding durations is multiple, determine one of the multiple binding durations as the second duration.

[0525] Optionally, the processing module is further configured to:

[0526] determine the second duration based on the first duration.

[0527] Optionally, the sending module is further configured to:

[0528] report the second duration to the base station.

[0529] Optionally, the sending module is further configured to:

[0530] report the second duration to the base station through the first uplink control information UCI; or

[0531] report the second duration to the base station through the first media access control unit MAC CE.

[0532] Optionally, the value indicated by the bit value of the first information field in the first UCI is equal to the second duration; or

[0533] the value indicated by the bit value of the first information field in the first UCI is equal to the index value of the second duration.

[0534] Optionally, the processing module is further configured to perform at least one of the following:

[0535] determine the start effective moment of the second duration;

[0536] determine the effective range of the second duration.

[0537] Optionally, the processing module is further configured to:

[0538] determine the first moment for reporting the effective indication information, where the effective indication information is used to indicate that the second duration becomes effective;

[0539] determine the effective interval duration;

[0540] Determine a second moment after the first moment and at an interval of the effective interval duration from the first moment;

[0541] Determine the second moment as the starting effective moment of the second duration.

[0542] Optionally, the processing module is further configured to:

[0543] Determine a third moment carried in the effectiveness indication information as the starting effective moment of the second duration, where the effectiveness indication information is used to indicate the effectiveness of the second duration.

[0544] Optionally, the processing module is further configured to perform any one of the following:

[0545] Determine the period between the starting effective moment of the second duration and the starting effective moment of a new second duration as the effective range of the second duration;

[0546] Determine the period between the starting effective moment of the second duration and the completion of the first number of uplink transmissions as the effective range of the second duration;

[0547] Determine the period between the starting effective moment of the second duration and the starting moment of the expiration of the second duration as the effective range of the second duration;

[0548] Determine the period starting from the starting effective moment of the second duration and lasting for a third duration as the effective range of the second duration.

[0549] Optionally, the processing module is further configured to:

[0550] Determine the number of time units occupied by the third duration based on a protocol - agreed manner.

[0551] Optionally, the processing module is further configured to:

[0552] Determine the number of time units occupied by the third duration;

[0553] The sending module is further configured to send a notification message to the base station, where the notification message is used to notify the base station of the number of time units occupied by the third duration.

[0554] Optionally, the sending module is further configured to:

[0555] Report the effectiveness indication information to the base station, where the effectiveness indication information is used to indicate the effectiveness of the second duration.

[0556] Optionally, the sending module is further configured to:

[0557] Report the effective indication information to the base station through a second UCI; or

[0558] Report the effective indication information to the base station through a second MAC CE.

[0559] Optionally, the effective indication information is further used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0560] Optionally, the sending module is further configured to:

[0561] Report a failure indication information to the base station, where the failure indication information is used to indicate that the second duration fails.

[0562] Optionally, the sending module is further configured to:

[0563] Report the failure indication information to the base station through a third UCI; or

[0564] Report the failure indication information to the base station through a third MAC CE.

[0565] Optionally, the bit value of the first information field in the third UCI indicates an invalid value.

[0566] Optionally, the failure indication information is further used to indicate that the terminal cannot support continuing to maintain power consistency and / or continuing to maintain phase continuity within the second duration.

[0567] Optionally, the processing module is further configured to perform any one of the following:

[0568] Determine that the joint channel estimation for the uplink channel becomes effective within the second duration;

[0569] Determine that the joint channel estimation for the first type of uplink channel becomes effective within the second duration;

[0570] Determine that the joint channel estimation for the first transmission mode of the first type of uplink channel becomes effective within the second duration.

[0571] Refer to Figure 12 , Figure 12 is a block diagram of a base station shown according to an exemplary embodiment, including:

[0572] A receiving module 1201, configured to receive a first duration reported by a terminal, where the first duration is the maximum continuous duration for which the terminal supports joint channel estimation for an uplink channel;

[0573] A processing module 1202, configured to determine a second duration for joint channel estimation for the uplink channel, where the second duration is less than or equal to the first duration;

[0574] The processing module 1202 is further configured to determine that the second duration becomes effective.

[0575] Optionally, the processing module is further configured to:

[0576] Determine the bundling duration of the demodulation reference signal DMRS based on the first duration, where the bundling duration is less than or equal to the first duration;

[0577] The apparatus further includes:

[0578] A sending module, configured to send the bundling duration to the terminal;

[0579] The processing module is further configured to perform any one of the following:

[0580] When the number of the bundling durations is 1 and the second duration reported by the terminal is not received, determine the bundling duration as the second duration;

[0581] When the number of the bundling durations is 1, receive the second duration reported by the terminal, where the second duration is less than or equal to the bundling duration;

[0582] When the number of the bundling durations is multiple, receive the second duration reported by the terminal, where the second duration is one of the multiple bundling durations.

[0583] Optionally, the receiving module is further configured to:

[0584] Receive the second duration reported by the terminal, where the second duration is determined by the terminal based on the first duration.

[0585] Optionally, the receiving module is further configured to:

[0586] Receive the second duration reported by the terminal through the first uplink control information UCI; or

[0587] Receive the second duration reported by the terminal through the first media access control unit MAC CE.

[0588] Optionally, the numerical value indicated by the bit value of the first information field in the first UCI is equal to the second duration; or

[0589] The numerical value indicated by the bit value of the first information field in the first UCI is equal to the index value of the second duration.

[0590] Optionally, the processing module is further configured to perform at least one of the following:

[0591] Determine the starting effective moment of the second duration;

[0592] Determine the effective range of the second duration.

[0593] Optionally, the processing module is further configured to:

[0594] Determine the first moment when the terminal reports the effective indication information, where the effective indication information is used to indicate that the second duration becomes effective;

[0595] Determine the effective interval duration;

[0596] Determine a second moment that is after the first moment and is separated from the first moment by the effective interval duration;

[0597] Determine the second moment as the start effective moment of the second duration.

[0598] Optionally, the processing module is further configured to:

[0599] Determine the third moment carried in the effective indication information reported by the terminal as the start effective moment of the second duration, where the effective indication information is used to indicate that the second duration becomes effective.

[0600] Optionally, the processing module is further configured to perform any one of the following:

[0601] Determine the time period between the start effective moment of the second duration and the start effective moment of a new second duration as the effective range of the second duration;

[0602] Determine the time period between the start effective moment of the second duration and the completion of the first number of uplink transmissions as the effective range of the second duration;

[0603] Determine the time period between the start effective moment of the second duration and the start failure moment of the second duration as the effective range of the second duration;

[0604] Determine the time period that lasts for a third duration starting from the start effective moment of the second duration as the effective range of the second duration.

[0605] Optionally, the processing module is further configured to:

[0606] Determine the number of time units occupied by the third duration based on a protocol-agreed manner.

[0607] Optionally, the receiving module is further configured to:

[0608] Receive the notification message reported by the terminal, where the notification message is used to notify the base station of the number of time units occupied by the third duration.

[0609] Optionally, the receiving module is further configured to:

[0610] receive the effective indication information reported by the terminal, where the effective indication information is used to indicate that the second duration becomes effective.

[0611] Optionally, the receiving module is further configured to:

[0612] receive the effective indication information reported by the terminal through a second UCI; or

[0613] receive the effective indication information reported by the terminal through a second MAC CE.

[0614] Optionally, the effective indication information is further used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

[0615] Optionally, the receiving module is further configured to:

[0616] receive the invalidation indication information reported by the terminal, where the invalidation indication information is used to indicate that the second duration becomes invalid.

[0617] Optionally, the receiving module is further configured to:

[0618] receive the invalidation indication information reported by the terminal through a third UCI; or

[0619] receive the invalidation indication information reported by the terminal through a third MAC CE.

[0620] Optionally, the bit value of the first information field in the third UCI indicates an invalid value.

[0621] Optionally, the invalidation indication information is further used to indicate that the terminal cannot support continuing to maintain power consistency and / or continuing to maintain phase continuity within the second duration.

[0622] Optionally, the processing module is further configured to perform any one of the following:

[0623] determine that the joint channel estimation for the uplink channel becomes effective within the second duration;

[0624] determine that the joint channel estimation for the first type of uplink channel becomes effective within the second duration;

[0625] determine that the joint channel estimation for the first transmission mode of the first type of uplink channel becomes effective within the second duration.

[0626] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to the descriptions in the method embodiments. The device embodiments described above are only illustrative. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the present disclosure solution. A person of ordinary skill in the art can understand and implement it without creative work.

[0627] Correspondingly, the present disclosure also provides a computer-readable storage medium storing a computer program for executing the duration determination method described in any one of the above terminal sides.

[0628] Correspondingly, the present disclosure also provides a computer-readable storage medium storing a computer program for executing the duration determination method described in any one of the above base station sides.

[0629] Correspondingly, the present disclosure also provides a communication device, including:

[0630] a processor;

[0631] a memory for storing executable instructions of the processor;

[0632] wherein, the processor is configured to execute the duration determination method described in any one of the above terminal sides.

[0633] Figure 13 is a block diagram of a duration determination device 1300 shown according to an exemplary embodiment. For example, the device 1300 may be a terminal such as a mobile phone, a tablet computer, an e-book reader, a multimedia playback device, a wearable device, an in-vehicle user device, an ipad, a smart TV, etc.

[0634] Referring to Figure 13 , the device 1300 may include one or more of the following components: a processing component 1302, a memory 1304, a power component 1306, a multimedia component 1308, an audio component 1310, an input / output (I / O) interface 1312, a sensor component 1316, and a communication component 1318.

[0635] The processing component 1302 generally controls the overall operation of the device 1300, such as operations associated with display, telephone calls, data duration determination, camera operations, and recording operations. The processing component 1302 may include one or more processors 1320 to execute instructions to complete all or part of the steps of the above-described duration determination method. In addition, the processing component 1302 may include one or more modules to facilitate the interaction between the processing component 1302 and other components. For example, the processing component 1302 may include a multimedia module to facilitate the interaction between the multimedia component 1308 and the processing component 1302. Additionally, the processing component 1302 may read executable instructions from the memory to implement the steps of a duration determination method provided by the above-described embodiments.

[0636] The memory 1304 is configured to store various types of data to support the operation of the device 1300. Examples of such data include instructions for any application or method operating on the device 1300, contact data, phone book data, messages, pictures, videos, and the like. The memory 1304 may be implemented by any type of volatile or non-volatile storage device 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 memory, flash memory, a magnetic disk, or an optical disk.

[0637] The power component 1306 provides power to the various components of the device 1300. The power component 1306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 1300.

[0638] The multimedia component 1308 includes a display screen that provides an output interface between the device 1300 and the user. In some embodiments, the multimedia component 1308 includes a front camera and / or a rear camera. When the device 1300 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each of the front camera and the rear camera may be a fixed optical lens system or have a focal length and optical zoom capabilities.

[0639] The audio component 1310 is configured to output and / or input audio signals. For example, the audio component 1310 includes a microphone (MIC) that is configured to receive external audio signals when the device 1300 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 1304 or transmitted via the communication component 1318. In some embodiments, the audio component 1310 further includes a speaker for outputting audio signals.

[0640] The I / O interface 1312 provides an interface between the processing component 1302 and a peripheral interface module, and the peripheral interface module may be a keyboard, a click wheel, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a power button, and a lock button.

[0641] The sensor component 1316 includes one or more sensors for providing an assessment of the status of the device 1300 in various aspects. For example, the sensor component 1316 can detect the on / off state of the device 1300, the relative positioning of components, such as the display and keypad of the device 1300. The sensor component 1316 can also detect a change in the position of the device 1300 or a component of the device 1300, the presence or absence of user contact with the device 1300, the orientation or acceleration / deceleration of the device 1300, and a change in the temperature of the device 1300. The sensor component 1316 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 1316 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 1316 may further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0642] The communication component 1318 is configured to facilitate communication between the device 1300 and other devices in a wired or wireless manner. The device 1300 may access a wireless network based on a communication standard, such as Wi-Fi, 2G, 3G, 4G, 5G, or 6G, or a combination thereof. In an exemplary embodiment, the communication component 1318 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 1318 further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0643] In an exemplary embodiment, the device 1300 may 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, microcontrollers, microprocessors, or other electronic components for performing any of the duration determination methods on the terminal side described above.

[0644] In an exemplary embodiment, a non-transitory machine-readable storage medium including instructions is also provided, such as a memory 1304 including instructions, and the above instructions can be executed by a processor 1320 of a device 1300 to complete the above-mentioned duration determination method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0645] Correspondingly, the present disclosure also provides a communication device, including:

[0646] a processor;

[0647] a memory for storing instructions executable by the processor;

[0648] wherein, the processor is configured to execute the duration determination method described in any one of the above on the base station side.

[0649] As Figure 14 shown, Figure 14 FIG. 1400 is a schematic structural diagram of a duration determination device 1400 shown according to an exemplary embodiment. The device 1400 may be provided as a base station. Referring to Figure 14 , the device 1400 includes a processing component 1422, a wireless transmit / receive component 1424, an antenna component 1426, and a signal processing part specific to the wireless interface. The processing component 1422 may further include at least one processor.

[0650] One of the processors in the processing component 1422 may be configured to execute the duration determination method described in any one of the above.

[0651] Correspondingly, the present disclosure also provides a communication system, as Figure 15 shown, Figure 15 FIG. 1500 is a schematic structural diagram of a communication system shown according to an exemplary embodiment, including:

[0652] a terminal 1501, configured to execute the duration determination method described in any one of the above on the terminal side;

[0653] a base station 1502, configured to execute the duration determination method described in any one of the above on the base station side.

[0654] Wherein, the present disclosure does not limit the number of terminals and base stations in the communication system.

[0655] Other embodiments of the present disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not disclosed herein. The specification and examples are only to be considered exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0656] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A method for determining duration, characterized in that, The method is executed by a terminal and includes: Determine a first duration, where the first duration is the maximum continuous duration that the terminal supports for joint channel estimation of an uplink channel; Report the first duration to a base station; Determine a second duration for joint channel estimation of the uplink channel, where the second duration is less than or equal to the first duration; Determine that the second duration becomes effective; The determination that the second duration becomes effective includes at least one of the following: Determine the starting effective moment of the second duration; Determine the effective range of the second duration; Among them, the determination of the starting effective moment of the second duration includes: Determine a first moment for reporting an effective indication message, where the effective indication message is used to indicate that the second duration becomes effective; Determine an effective interval duration; Determine a second moment after the first moment and separated from the first moment by the effective interval duration; Determine the second moment as the starting effective moment of the second duration; or, The determination of the starting effective moment of the second duration includes: Determine a third moment carried in the effective indication message as the starting effective moment of the second duration, where the effective indication message is used to indicate that the second duration becomes effective.

2. The method according to claim 1, wherein The method further includes: Receive the binding duration of a demodulation reference signal DMRS sent by the base station, where the binding duration is less than or equal to the first duration; The determination of the second duration for joint channel estimation of the uplink channel includes any one of the following: When the number of the binding durations is 1, determine the second duration that is less than or equal to the binding duration; When the number of the binding durations is multiple, determine one of the multiple binding durations as the second duration.

3. The method according to claim 1, characterized in that, The determination of the second duration for joint channel estimation of the uplink channel includes: Determine the second duration based on the first duration.

4. The method according to any one of claims 1 to 3, characterized in that, The method further includes: Report the second duration to the base station.

5. The method according to claim 4, characterized in that, The reporting of the second duration to the base station includes: Report the second duration to the base station through a first uplink control information UCI; or Report the second duration to the base station through a first media access control unit MAC CE.

6. The method according to claim 5, wherein: The value indicated by the bit value in the first information field of the first UCI is equal to the second duration; or The value indicated by the bit value in the first information field of the first UCI is equal to the index value of the second duration.

7. The method according to claim 1, characterized in that, The determination of the effective range of the second duration includes any one of the following: Determine the time period between the starting effective moment of the second duration and the starting effective moment of a new second duration as the effective range of the second duration; Determine the time period between the starting effective moment of the second duration and the completion of the first uplink transmission as the effective range of the second duration; Determine the time period between the starting effective moment of the second duration and the starting moment of the expiration of the second duration as the effective range of the second duration; Determine the period that lasts for a third period starting from the start effective moment of the second period as the effective range of the second period.

8. The method according to any one of claims 1 to 3, characterized in that The method further includes: Reporting effective indication information to the base station, where the effective indication information is used to indicate that the second period becomes effective.

9. The method according to claim 8, characterized in that, The reporting the effective indication information to the base station includes: Reporting the effective indication information to the base station through a second UCI; or Reporting the effective indication information to the base station through a second MAC CE.

10. The method according to claim 8, characterized in that, The effective indication information is further used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second period.

11. The method according to any one of claims 1-3, characterized in that, The method further includes: Reporting invalidation indication information to the base station, where the invalidation indication information is used to indicate that the second period becomes invalid.

12. The method according to claim 11, wherein The reporting the invalidation indication information to the base station includes: Reporting the invalidation indication information to the base station through a third UCI; or Reporting the invalidation indication information to the base station through a third MAC CE.

13. The method according to claim 12, wherein The bit value of the first information field in the third UCI indicates an invalid value.

14. The method according to claim 11, wherein The invalidation indication information is further used to indicate that the terminal cannot support continuing to maintain power consistency and / or continuing to maintain phase continuity within the second period.

15. The method according to any one of claims 1 to 3, characterized in that The determining that the second period becomes effective includes any one of the following: Determining that the joint channel estimation performed for the uplink channel becomes effective within the second period; Determining that the joint channel estimation performed for the first type of uplink channel becomes effective within the second period; Determining that the joint channel estimation performed for the first transmission mode of the first type of uplink channel becomes effective within the second period.

16. A method for determining duration, characterized in that The method is performed by a base station and includes: Receiving a first period reported by a terminal, where the first period is the maximum continuous period that the terminal supports performing joint channel estimation for the uplink channel; Determining a second period for performing joint channel estimation for the uplink channel, where the second period is less than or equal to the first period; Determining that the second period becomes effective; The determining that the second period becomes effective includes any one of the following: Determining the start effective moment of the second period; Determining the effective range of the second period; Wherein, the determining the start effective moment of the second period includes: Determining a first moment when the terminal reports effective indication information, where the effective indication information is used to indicate that the second period becomes effective; Determining an effective interval period; Determining a second moment after the first moment and separated from the first moment by the effective interval period; Determining the second moment as the start effective moment of the second period; or, The determining the start effective moment of the second period includes: Determining the third moment carried in the effective indication information reported by the terminal as the start effective moment of the second period, where the effective indication information is used to indicate that the second period becomes effective.

17. The method according to claim 16, wherein The method further includes: Based on the first period, determining the binding period of the demodulation reference signal DMRS, where the binding period is less than or equal to the first period; Send the binding duration to the terminal; The determining of the second duration for joint channel estimation for the uplink channel includes any one of the following: When the number of the binding durations is 1 and the second duration reported by the terminal is not received, determine the binding duration as the second duration; When the number of the binding durations is 1, receive the second duration reported by the terminal, where the second duration is less than or equal to the binding duration; When the number of the binding durations is multiple, receive the second duration reported by the terminal, where the second duration is one of the multiple binding durations.

18. The method according to claim 16, wherein The determining of the second duration for joint channel estimation for the uplink channel includes: Receive the second duration reported by the terminal, where the second duration is determined by the terminal based on the first duration.

19. The method according to claim 17 or 18, characterized in that, The receiving of the second duration reported by the terminal includes: Receive the second duration reported by the terminal through the first uplink control information UCI; or Receive the second duration reported by the terminal through the first media access control unit MAC CE.

20. The method according to claim 19, wherein, The value indicated by the bit value of the first information field in the first UCI is equal to the second duration; or The value indicated by the bit value of the first information field in the first UCI is equal to the index value of the second duration.

21. The method according to claim 16, wherein The determining of the effective range of the second duration includes any one of the following: Determine the period between the start effective moment of the second duration and the start effective moment of the new second duration as the effective range of the second duration; Determine the period between the start effective moment of the second duration and the completion of the first number of uplink transmissions as the effective range of the second duration; Determine the period between the start effective moment of the second duration and the start failure moment of the second duration as the effective range of the second duration; Determine the period starting from the start effective moment of the second duration and lasting for the third duration as the effective range of the second duration.

22. The method according to any one of claims 16 - 18, characterized in that The method further includes: Receive the effective indication information reported by the terminal, where the effective indication information is used to indicate the effectiveness of the second duration.

23. The method according to claim 22, wherein The receiving of the effective indication information reported by the terminal includes: Receive the effective indication information reported by the terminal through the second UCI; or Receive the effective indication information reported by the terminal through the second MAC CE.

24. The method according to claim 22, wherein The effective indication information is further used to indicate that the terminal supports maintaining power consistency and / or maintaining phase continuity within the second duration.

25. The method according to any one of claims 16 - 18, characterized in that, The method further includes: Receive the failure indication information reported by the terminal, where the failure indication information is used to indicate the failure of the second duration.

26. The method according to claim 25, wherein The receiving of the failure indication information reported by the terminal includes: Receive the failure indication information reported by the terminal through the third UCI; or Receive the failure indication information reported by the terminal through the third MAC CE.

27. The method according to claim 26, wherein, The bit value of the first information field in the third UCI indicates an invalid value.

28. The method according to claim 25, wherein the failure indication information is further used to indicate that the terminal is unable to support maintaining power consistency and / or maintaining phase continuity within the second duration.

29. The method according to any one of claims 16-18, characterized in that, The determination that the second duration becomes effective includes any one of the following: determining that the joint channel estimation for the uplink channel becomes effective within the second duration; determining that the joint channel estimation for the first type of uplink channel becomes effective within the second duration; determining that the joint channel estimation for the first transmission mode of the first type of uplink channel becomes effective within the second duration.

30. A terminal, characterized in that, including: a processing module, configured to determine a first duration, where the first duration is the maximum continuous duration that the terminal supports for performing joint channel estimation for the uplink channel; a sending module, configured to report the first duration to the base station; the processing module is further configured to determine a second duration for performing joint channel estimation for the uplink channel, where the second duration is less than or equal to the first duration; the processing module is further configured to determine that the second duration becomes effective; the processing module is further configured to perform any one of the following: determining the starting effective moment of the second duration; determining the effective range of the second duration; wherein, the processing module is further configured to: determine a first moment for reporting the effective indication information, where the effective indication information is used to indicate that the second duration becomes effective; determine an effective interval duration; determine a second moment after the first moment and separated from the first moment by the effective interval duration; determining the second moment as the starting effective moment of the second duration; or, the processing module is further configured to: determine the third moment carried in the effective indication information as the starting effective moment of the second duration, where the effective indication information is used to indicate that the second duration becomes effective.

31. A base station, characterized in that, including: a receiving module, configured to receive the first duration reported by the terminal, where the first duration is the maximum continuous duration that the terminal supports for performing joint channel estimation for the uplink channel; a processing module, configured to determine a second duration for performing joint channel estimation for the uplink channel, where the second duration is less than or equal to the first duration; the processing module is further configured to determine that the second duration becomes effective; the processing module is further configured to perform any one of the following: determining the starting effective moment of the second duration; determining the effective range of the second duration; wherein, the processing module is further configured to: determine the first moment when the terminal reports the effective indication information, where the effective indication information is used to indicate that the second duration becomes effective; determine an effective interval duration; determine a second moment after the first moment and separated from the first moment by the effective interval duration; determining the second moment as the starting effective moment of the second duration; or, the processing module is further configured to: determine the third moment carried in the effective indication information reported by the terminal as the starting effective moment of the second duration, where the effective indication information is used to indicate that the second duration becomes effective.

32. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, and the computer program is used to execute the duration determination method according to any one of claims 1 - 29 above.

33. A communication device, characterized in that, including: Processor; Memory for storing instructions executable by the processor; Wherein, the processor is configured to execute the duration determination method according to any one of claims 1-29 above.

34. A communication system, characterized in that, Comprising: A terminal for executing the duration determination method according to any one of claims 1-15 above; A base station for executing the duration determination method according to any one of claims 16-29 above.

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