Method, device, terminal and network side device for processing duplicate transmissions

Abstract

The present application discloses a method, an apparatus, a terminal and a network side device for processing duplicate transmission, which belong to the technical field of communication. The method for processing duplicate transmission according to an embodiment of the present application includes: a terminal obtaining first information; the terminal determining at least one transmission gap in a first duplicate transmission process according to the first information; and the terminal performing a first operation in the transmission gap.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to Chinese Patent Application No. 202110358454.6, filed in China on April 1, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of communications, and in particular to a method, apparatus, terminal and network side equipment for processing duplicate transmissions. [Background technology]

[0003] Narrow Band Internet of Things (NB-IoT) is built on cellular networks, consumes only about 180KHz of bandwidth, uses licensed frequency bands, and can coexist with existing networks in three configuration methods: in-band, guard band, or independent carrier. It can be directly configured on Global System for Mobile Communications (GSM) networks, Universal Mobile Telecommunications System (UMTS) networks, or Long Term Evolution (LTE) networks to reduce configuration costs and realize smooth upgrades. NB-IoT has the characteristics of ultra-strong coverage, ultra-low power consumption, and ultra-large connection.

[0004] A non-terrestrial network refers to a network or network segment that uses satellites or Unmanned Aircraft System (UAS) platforms for transmission, and typical application scenarios include continuous coverage in remote mountainous areas, deserts, oceans, and forests, or situations where terrestrial base stations cannot be built or have been damaged, such as natural disasters and emergency communications when damage to terrestrial base stations occurs. Here, satellites include Low Earth Orbiting (LEO) satellites, Medium Earth Orbiting (MEO) satellites, Geostationary Earth Orbiting (GEO) satellites, and Highly Elliptical Orbiting (HEO) satellites.

[0005] The Internet of Things over Non Terrestrial Networks (IoT over NTN) based on non-terrestrial networks uses satellites as a relay. In other words, the link from a base station to an Internet of Things (IoT) terminal is divided into a total of two link segments: the link from the base station to the satellite (feedback link) and the link from the satellite to the IoT terminal (service link).

[0006] In order to better support the enhancement of uplink coverage, the NB-IoT system introduces a duplicate transmission mechanism in the uplink physical channel. Similarly, a duplicate transmission mechanism is used in the downlink. In the prior art, for synchronization purposes, an uplink gap (UL gap) is compulsorily added to the narrowband physical uplink shared channel (NPUSCH) every 256 ms of continuous duplicate transmission, and the uplink gap is fixedly configured, with a fixed time of 40 ms, and frequency domain resources are independently configured, and do not occupy the resources of the NPUSCH duplicate transmission.

[0007] In conventional IoT, time and frequency synchronization cannot be performed again using the uplink gap unless 256 ms of overlapping transmission is performed. However, in IoT over NTN, satellites move at high speed, and after a certain period of movement, large time offsets and frequency offsets accumulate during overlapping transmission, causing rapid loss of synchronization. The speed at which loss of synchronization occurs varies depending on the satellite's operating speed. The faster the satellite's operating speed, the faster the loss of synchronization. It is even possible that processes such as cell reselection may begin during overlapping transmission. However, time and frequency synchronization cannot be performed in a timely manner using the existing uplink gap. Summary of the Invention

[0008] The embodiments of the present application provide a method, device, terminal and network side equipment for processing duplicate transmission, which can solve the problem in the prior art that a terminal cannot perform time-frequency synchronization in a timely manner due to the fixed arrangement of transmission gaps in the duplicate transmission process.

[0009] In a first aspect, A step of a terminal acquiring first information; The terminal determines at least one transmission gap in a first overlapping transmission process based on the first information; and the terminal performing a first operation in the transmission gap.

[0010] In a second aspect, A network side device sends first information, the first information being for indicating at least one transmission gap in a first overlapping transmission process; and a network side device performing a second operation corresponding to the first operation in the transmission gap.

[0011] In a third aspect, the present invention is applied to a terminal, a first acquisition module for acquiring first information; a first determining module for determining at least one transmission gap in a first overlapping transmission process based on the first information; a first operation module for performing a first operation in the transmission gap.

[0012] In the fourth aspect, it is applied to network side devices, a first transmitting module for transmitting first information, the first information being for indicating at least one transmission gap in a first overlapping transmission process; a second operation module for performing a second operation corresponding to the first operation in the transmission gap.

[0013] In a fifth aspect, there is provided a terminal including a processor, a memory, and programs or commands stored in the memory and executable on the processor, the programs or commands, when executed by the processor, achieving steps of the method according to the first aspect.

[0014] In a sixth aspect, there is provided a terminal including a processor and a communication interface, the communication interface being used to acquire first information, and the processor being used to determine at least one transmission gap in a first overlapping transmission process based on the first information, and to perform a first operation in the transmission gap.

[0015] In a seventh aspect, there is provided a network side device including a processor, a memory, and a program or command stored in the memory and executable by the processor, the program or command realizing steps of the method according to the second aspect when executed by the processor.

[0016] In an eighth aspect, there is provided a network side device including a processor and a communication interface, the communication interface being used to transmit first information, the first information being for indicating at least one transmission gap in a first overlapping transmission process, and the processor being used to perform a second operation in the transmission gap corresponding to the first operation.

[0017] In a ninth aspect, there is provided a readable storage medium having stored thereon a program or command which, when executed by a processor, causes the steps of the method according to the first aspect to be realized or causes the steps of the method according to the second aspect to be realized.

[0018] In a tenth aspect, there is provided a chip including a processor and a communication interface, the communication interface and the processor being coupled, the processor executing a program or command to implement the method according to the first aspect or being used to implement the method according to the second aspect.

[0019] In an eleventh aspect, there is provided a computer program / program product stored on a non-volatile storage medium and executed by at least one processor to implement the steps of the method according to the first aspect or to implement the steps of the method according to the second aspect.

[0020] In a twelfth aspect, there is provided a communications device configured to perform the steps of the method according to the first aspect or to perform the steps of the method according to the second aspect.

[0021] In an embodiment of the present application, when first information is introduced into a duplicated transmission process and the first information is used to flexibly set a transmission gap in the duplicated transmission process, the terminal can flexibly determine a transmission gap based on the first information, and use the determined transmission gap to perform a first operation, thereby improving the reliability of subsequent duplicated transmission. [Brief description of the drawings]

[0022] [Figure 1] 1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. [Diagram 2] 1 shows a step flowchart (part 1) of a method for handling duplicate transmissions provided in an embodiment of the present application. [Diagram 3] 1 shows a step flowchart (part 2) of a method for handling duplicate transmissions provided in an embodiment of the present application. [Figure 4] FIG. 1 shows a structural schematic diagram (part 1) of a processing device for duplicate transmission provided in an embodiment of the present application. [Diagram 5] FIG. 2 shows a structural schematic diagram (part 2) of a processing device for duplicate transmission provided in an embodiment of the present application. [Figure 6] 1 shows a structural schematic diagram of a communication device provided in an embodiment of the present application. [Figure 7] 1 shows a structural schematic diagram of a terminal provided in an embodiment of the present application. [Figure 8] 1 illustrates a structural schematic diagram of a network side device provided in an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, the technical solutions in the embodiments of the present application will be clearly described with reference to the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the protection scope of the present application.

[0024] The terms "first", "second", etc. in the specification and claims of the present application are not intended to describe a particular order or sequence, but are intended to distinguish between similar objects. It should be understood that the terms used in this manner may be substituted for each other where appropriate, so that the embodiments of the present application may be performed in an order other than that shown or described herein, and that the objects distinguished by "first" and "second" generally belong to one category, and the number of objects is not limited, for example, the first object may be one or more. In addition, in the specification and claims, "and / or" indicates at least one of the connected objects, and the symbol " / " generally indicates that the related objects before and after are in an "or" relationship.

[0025] It should be noted that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used in other systems and wireless technologies in addition to the systems and wireless technologies mentioned above. Although the following description describes a New Radio (NR) system for illustrative purposes and uses NR terminology in much of the following description, these techniques may also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

[0026] FIG. 1 shows a block diagram of a wireless communication system applicable to the embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be called a terminal device or a user terminal (User Equipment, UE), and may be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer also called a notebook computer, a personal digital assistant (PDA), a personal digital assistant, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device, a vehicle user equipment (VUE), a pedestrian user equipment (PUE), etc., and the wearable device includes an in-smart watch, a wristband, an earphone, a pair of glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.The network side device 12 may be a base station or a core network, where the base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a wireless local area network (WLAN) access point, a wireless fidelity (WiFi) node, a transmitting receiving point (TRP), or any other suitable term in the field, and the base station is not limited to a specific technical term as long as the same technical effect can be achieved. In the embodiments of the present application, only a base station in an NR system is taken as an example, but it should be noted that the specific type of the base station is not limited.

[0027] The following describes in detail the method, apparatus, terminal and network side equipment for handling duplicate transmissions provided in the embodiments of the present application according to several embodiments and application scenarios with reference to the drawings.

[0028] As shown in FIG. 2 , the embodiment of the present application provides a method for handling duplicate transmissions, which includes steps 201, 202 and 203.

[0029] In step 201, the terminal obtains first information.

[0030] In step 202, the terminal determines at least one transmission gap in a first overlapping transmission process based on the first information.

[0031] In step 203, the terminal performs a first operation in the transmission gap.

[0032] The first overlapping transmission process mentioned in the embodiment of this application may be an uplink overlapping transmission process, and may be a downlink overlapping transmission process, and is not specifically limited here.Accordingly, the transmission gap in the uplink overlapping transmission process may be called an uplink transmission gap (Uplink gap, UL gap), and the transmission gap in the downlink overlapping transmission process may be called a downlink transmission gap (Downlink gap, DL gap).

[0033] Optionally, the transmission gap in the embodiment of the present application is part of a first duplicate transmission process, the frequency domain resource of the transmission gap is the same as the frequency domain resource of the duplicate transmission in the first duplicate transmission process, and the length of the time domain resource of the transmission gap is a part of the length of the time domain resource of the duplicate transmission in the first duplicate transmission process, and is specifically set by the first information.

[0034] In at least one embodiment of the present application, step 201 includes: The terminal acquires the first information in a first manner, where the first manner includes: Network pre-configuration and Radio Resource Control (RRC) configuration; Downlink Control Information (DCI) setting; and a Medium Access Control (MAC) Control Element (CE) configuration.

[0035] Alternatively, when the network side device sets the first information by DCI, the DCI can be carried in a physical downlink control channel (PDCCH) order, and the PDCCH order is used to trigger the terminal to start random access or monitoring some system information, or to notify the terminal of an instruction of whether to perform some beam switching.

[0036] In at least one embodiment of the present application, the first information is: transmission gap enable information for indicating whether to enable a transmission gap in the first overlapping transmission process; time domain offset information of the transmission gap in a first duplicated transmission process; periodicity information of the transmission gap in a first duplicated transmission process; a length of a time domain resource of the transmission gap in a first overlapping transmission process; the number of said transmission gaps in the first duplicated transmission process; a transmission type of a first operation in the transmission gap; and time domain resource information for a first operation in the transmission gap.

[0037] In one alternative embodiment, the transmission type of the first operation in the transmission gap is: Downlink synchronization (e.g., timing synchronization, frequency offset compensation); Monitoring of a physical downlink control channel (PDCCH), which may be monitoring of a PDCCH order used to trigger the terminal to start random access or monitoring of some system information, or to inform the terminal of an indication of whether to perform some beam switching; Uplink synchronization (e.g., timing synchronization, frequency offset compensation); Random access may be a random access triggered by a PDCCH order or may be a random access initiated by the terminal spontaneously (which may be a predefined action); Cell reselection; Cell switching and Beam switching and Feedback of completed duplicate transmissions, e.g., Acknowledgement (ACK) feedback or Negative Acknowledgement (NACK) feedback; and Timing Advance (TA) compensation.

[0038] It should be noted that the first operations performed by the terminal in different transmission gaps may be the same or different, or in other words, the role of the first operations in different transmission gaps may be the same or different, or in other words, the transmission type of the first operations in different transmission gaps may be the same or different.

[0039] Alternatively, the terminal may have one first operation of one transmission type in one transmission gap, or may have multiple first operations of multiple transmission types, for example, the terminal only performs cell switching within one transmission gap, or the terminal performs cell switching within one transmission gap and then performs a synchronization operation, which are not described one by one here.

[0040] For a transmission type of a first operation in the transmission gap, in at least one embodiment of the present application, when the transmission type of the first operation includes downlink synchronization, a length of the time domain resource of the transmission gap is equal to or greater than a time length required for uplink-downlink conversion, or in other words, a length of the time domain resource of the transmission gap includes at least a time length required for uplink-downlink conversion.

[0041] As an alternative embodiment, when the transmission type of the first operation is TA compensation, step 203 includes: The terminal calculating a TA value of a service link based on a positioning capability and an ephemeris; The terminal calculates a TA value of a feedback link using a TA change rate, or the terminal determines a TA value of a feedback link according to a network instruction; The terminal performs TA compensation based on the TA value of a service link and the TA value of a feedback link, where the compensated TA value takes effect at the end of the transmission gap.

[0042] It should be noted that the method by which the network indicates the TA value of the feedback link is as follows: 1) The network directly indicates the TA value of the feedback link; and 2) It includes predefining a TA set (both the network and the terminal know this TA set) based on information such as cell size and satellite motion trajectory, and after the network determines the TA value of the feedback link, instructing the terminal to select a TA index in the TA set, and the terminal determines the TA value of the feedback link based on the TA index and the TA set.

[0043] As an optional alternative embodiment, when the transmission type of the first operation is uplink synchronization or downlink synchronization, step 203 includes: said terminal calculating a frequency offset value of a service link based on positioning capability and ephemeris information; The terminal pre-compensates for a frequency offset from the terminal to the satellite and from the satellite to the base station based on a frequency offset value of a service link and a frequency offset value of a feedback link indicated by a network, or the terminal pre-compensates for a frequency offset from the terminal to the satellite based on a frequency offset value of a service link.

[0044] In other words, the network may or may not feed back the frequency offset value of the feedback link to the terminal. If the network does not feed back the frequency offset value of the feedback link to the terminal, the terminal pre-compensates the frequency offset from the terminal to the satellite based on only the frequency offset value of the service link, but the network side equipment needs to post-compensate the frequency offset from the satellite to the base station based on the frequency offset value of the feedback link.

[0045] As yet another optional embodiment, if the transmission type of the first operation includes beam switching, step 203 includes: the terminal going from an RRC connected state to an RRC idle state in response to a network-triggered RRC connection release order, and temporarily stopping the first duplicate transmission process; A terminal selects an optimal beam (in the case of a multi-beam cell), performs a random access process, and reports the optimal beam to the network during the random access; The method includes a step in which the terminal determines a beam to which the terminal is to switch based on a network instruction, and switches to the beam instructed by the network.

[0046] In the embodiment of this application, for a single beam cell, beam switching corresponds to cell reselection, which will not be explained in detail in this application.

[0047] As yet another optional embodiment, if the transmission type of the first operation includes feedback of completed duplicate transmissions, step 203 includes: The terminal switches to a downlink to receive reception feedback information of the duplicate transmission sent by the network; If the received feedback information is a confirmation feedback, the terminal stops the first duplicate transmission process after the first operation is completed, and the network feeds back a confirmation feedback and releases resources of the first duplicate transmission process; If the received feedback information is negative feedback, the terminal continues to perform the first duplicate transmission process after the first operation is terminated.

[0048] As an optional alternative embodiment, when the transmission type of the first operation includes at least one of random access, cell reselection, cell switching, and beam switching, When the terminal completes the random access, the terminal stops the first duplicate transmission process after the first operation is completed; When the terminal completes cell reselection, the terminal stops the first duplicate transmission process after the first operation is completed.

[0049] In an embodiment of the present application, when a terminal completes random access or cell reselection within a transmission gap, because the first duplicate transmission process targets the source cell or source beam, after completing random access or cell reselection within the transmission gap, the terminal stops the first duplicate transmission process.

[0050] Based on the above, in an embodiment of the present application, when first information is introduced into a duplicated transmission process and the first information is used to flexibly set a transmission gap in the duplicated transmission process, the terminal can flexibly determine a transmission gap based on the first information, and use the determined transmission gap to perform a first operation, thereby improving the reliability of subsequent duplicated transmission.

[0051] As shown in FIG. 3 , the embodiment of the present application further provides a method for handling duplicate transmissions, including steps 301 and 302.

[0052] In step 301, a network side device sends first information, where the first information is for indicating at least one transmission gap in a first overlapping transmission process.

[0053] In step 302, the network side device performs a second operation corresponding to the first operation in the transmission gap.

[0054] The first overlap transmission process mentioned in the embodiment of this application can be an uplink overlap transmission process, can be a downlink overlap transmission process, and is not specifically limited here.Accordingly, the transmission gap in the uplink overlap transmission process can be called an uplink transmission gap (UL gap), and the transmission gap in the downlink overlap transmission process can be called a downlink transmission gap (DL gap).

[0055] In at least one embodiment of the present application, step 301 includes: The method includes a step of transmitting first information by a network side device in a first manner, wherein the first manner includes: Network pre-configuration and Radio resource control (RRC) configuration; Downlink control information (DCI) configuration; and a medium access control layer control element MAC CE setting.

[0056] Alternatively, when the network side device sets the first information by DCI, the DCI can be carried in a physical downlink control channel (PDCCH order), and the PDCCH order is used to trigger the terminal to start random access or monitoring some system information, or to notify the terminal of an instruction of whether to perform some beam switching.

[0057] In at least one embodiment of the present application, the first information is: enable information for the transmission gap; time domain offset information of the transmission gap in a first duplicated transmission process; periodicity information of the transmission gap in a first duplicated transmission process; a length of a time domain resource of the transmission gap in a first overlapping transmission process; the number of said transmission gaps in the first duplicated transmission process; a transmission type of a first operation in the transmission gap; and time domain resource information for a first operation in the transmission gap.

[0058] In an alternative embodiment, the method further comprises: The method further includes a step of the network side device determining the first information based on a transmission time and / or a satellite orbit height in the first overlapping transmission process.

[0059] For example, the network side equipment sets the start time, time length, period, etc. of the transmission gap based on different orbital satellites or the operating speeds of different satellites, and then uses the transmission gap to perform operations such as compensation for time offset and frequency offset in a timely manner, to ensure the time and frequency synchronization of the subsequent duplicate transmission, and improve the effectiveness of the subsequent duplicate transmission.

[0060] In an alternative embodiment, the transmission type of the first operation in the transmission gap is: Downlink synchronization (e.g., timing synchronization, frequency offset compensation); Monitoring of a physical downlink control channel (PDCCH), which may be monitoring of a PDCCH order used to trigger the terminal to start random access or monitoring of some system information, or to inform the terminal of an indication of whether to perform some beam switching; Uplink synchronization (e.g., timing synchronization, frequency offset compensation); Random access may be a random access triggered by a PDCCH order or may be a random access initiated by the terminal spontaneously (which may be a predefined action); Cell reselection; Cell switching and Beam switching and feedback of completed duplicate transmissions, such as an acknowledgment ACK feedback or a non-acknowledgement NACK feedback; and timing advance TA compensation.

[0061] It should be noted that the first operations performed by the terminal in different transmission gaps may be the same or different, or in other words, the role of the first operations in different transmission gaps may be the same or different, or in other words, the transmission types of the first operations in different transmission gaps may be the same or different.

[0062] Alternatively, the terminal may have one first operation of one transmission type in one transmission gap, or may have multiple first operations of multiple transmission types, for example, the terminal only performs cell switching within one transmission gap, or the terminal performs cell switching within one transmission gap and then performs a synchronization operation, which are not described one by one here.

[0063] For a transmission type of a first operation in the transmission gap, in at least one embodiment of the present application, when the transmission type of the first operation includes downlink synchronization, a length of the time domain resource of the transmission gap is equal to or greater than a time length required for uplink-downlink conversion, or in other words, a length of the time domain resource of the transmission gap includes at least a time length required for uplink-downlink conversion.

[0064] As an alternative embodiment, if the transmission type of the first operation is TA compensation, step 302 includes: The network side device calculates a TA value of a feedback link using a TA change rate or almanac information, and feeds back the TA value of the feedback link to a terminal; and the terminal performs TA compensation based on the TA value of a service link and the TA value of the feedback link, wherein the compensated TA value takes effect at the end of the transmission gap.

[0065] It should be noted that the method by which the network indicates the TA value of the feedback link is as follows: 1) The network directly indicates the TA value of the feedback link; and 2) It includes predefining a TA set (both the network and the terminal know this TA set) based on information such as cell size and satellite motion trajectory, and after the network determines the TA value of the feedback link, instructing the terminal to select a TA index in the TA set, and the terminal determines the TA value of the feedback link based on the TA index and the TA set.

[0066] As an optional alternative embodiment, when the transmission type of the first operation is uplink synchronization or downlink synchronization, step 302 includes: a network side device calculating a frequency offset value of a feedback link, and feeding back the frequency offset value of the feedback link to a terminal, and the terminal pre-compensating for frequency offsets from the terminal to the satellite and from the satellite to the base station according to the frequency offset value of the service link and the frequency offset value of the feedback link; Or, The method includes a step of the network side equipment calculating a frequency offset value of the feedback link, and post-compensating for a frequency offset from the satellite to the base station based on the frequency offset value of the feedback link.

[0067] In other words, the network may or may not feed back the frequency offset value of the feedback link to the terminal. If the network does not feed back the frequency offset value of the feedback link to the terminal, the terminal pre-compensates the frequency offset from the terminal to the satellite based on only the frequency offset value of the service link, but the network side equipment needs to post-compensate the frequency offset from the satellite to the base station based on the frequency offset value of the feedback link.

[0068] As yet another optional example, if the transmission type of the first operation includes beam switching, step 302 includes: a network side device sending an RRC connection release order to the terminal, instructing the terminal to move from an RRC connected state to an RRC idle state and temporarily stop the first duplicate transmission process; receiving an optimal beam (in the case of a multi-beam cell) reported by the terminal during random access by the network side device; The method includes a step in which the network side equipment instructs the terminal to select a beam to be switched to based on the optimal beam.

[0069] In the embodiment of this application, for a single beam cell, beam switching corresponds to cell reselection, which will not be explained in detail in this application.

[0070] As yet another optional embodiment, if the transmission type of the first operation includes feedback of completed duplicate transmissions, step 302 includes: A network side device sends reception feedback information of duplicate transmission to a terminal; If the received feedback information is a confirmation feedback, the network side device stops the first duplicate transmission process after the first operation is completed, and the network feeds back a confirmation feedback and releases the resource of the first duplicate transmission process; If the received feedback information is negative feedback, the network side device continues to perform the first duplicate transmission process after the first operation is completed.

[0071] As an optional alternative embodiment, when the transmission type of the first operation includes at least one of random access, cell reselection, cell switching, and beam switching, When the terminal completes the random access, the network side device stops the first duplicate transmission process after the first operation is completed; When the terminal completes cell reselection, the network side equipment stops the first duplicate transmission process after completing the first operation.

[0072] In an embodiment of the present application, when a terminal completes random access or cell reselection within a transmission gap, because the first duplicate transmission process targets the source cell or source beam, after completing random access or cell reselection within the transmission gap, the terminal stops the first duplicate transmission process.

[0073] Based on the above, in an embodiment of the present application, when first information is introduced into a duplicated transmission process and the first information is used to flexibly set a transmission gap in the duplicated transmission process, the terminal can flexibly determine a transmission gap based on the first information, and use the determined transmission gap to perform a first operation, thereby improving the reliability of subsequent duplicated transmission.

[0074] In order to more clearly explain the method for handling duplicate transmissions provided in the embodiments of the present application, the following description will be given with reference to some examples.

[0075] Example 1 If the transmission type of the first operation is cell reselection, 1. The terminal obtains a first determination via RRC or DCI, etc., and determines information such as the start time and duration of a transmission gap.

[0076] 2. The terminal reports an RRC connection release request, the base station triggers an RRC connection release (which may be a predefined action that does not require the terminal to report an RRC connection release request), and the terminal proceeds from the RRC connected state to the RRC idle state and temporarily stops the duplicate transmission.

[0077] 3. The terminal performs a cell reselection process, then the terminal initiates an RRC connection recovery flow in the RRC idle state and proceeds to the RRC connected state.

[0078] 4. After completing the cell reselection, the network needs to re-scale the uplink duplicate transmission to the terminal, so that the terminal does not continue to perform the previous duplicate transmission after the first operation ends.

[0079] Example 2 When the transmission type of the first operation is downlink synchronization, 1. The terminal obtains the first information through RRC or DCI, etc., and determines information such as the start time and duration of a transmission gap.

[0080] 2. When entering a transmission gap, the terminal switches to downlink, and the base station repeatedly transmits the Narrowband Primary Synchronization Signal (NPSS) / Narrowband Secondary Synchronization Signal (NSSS) / Narrowband Reference Signal (NRS), and the number of repetitions can be predefined or preconfigured.

[0081] 3. The terminal continuously receives NPSS / NSSS / NRS signals to perform synchronization tracking and complete time and frequency offset compensation.

[0082] 4. After the terminal completes downlink synchronization, it ends the first operation and continues the previous duplicate transmission.

[0083] Example 3 When the transmission type of the first operation is random access, 1. The base station transmits a PDCCH order to the terminal via DCI, and the PDCCH order ends in subframe n.

[0084] 2. The terminal switches to the downlink, and obtains NPRACH frequency domain resource information, the number of repeated transmissions, and the preamble type from the system information or DCI.

[0085] 3. The terminal further switches to the uplink and starts transmitting a preamble in the first subframe with available NPRACH resources after ending in subframe n+k, where k may be predefined or preconfigured or specified by the network side.

[0086] 4. After the terminal completes the random access and ends the first operation, it will not continue the previous duplicate transmission.

[0087] Example 4 If the transmission type of the first operation is TA compensation, the TA compensation method is as follows:

[0088] 1. The terminal calculates the service link TA value based on its own positioning capability and ephemeris, and reports the service link TA to the network.

[0089] 2. The terminal calculates the feedback link TA value based on the TA change rate.

[0090] 3. The network also calculates the feedback link TA value based on the TA change rate.

[0091] 4. To facilitate TA adjustment, both the terminal and the network know the TA values ​​of the service link and the feedback link.

[0092] 5. The adjusted TA takes effect at the end of the transmission gap.

[0093] 6. After completing the first operation, the terminal continues the previous duplicate transmission.

[0094] Example 5 If the transmission type of the first operation is uplink synchronization, the scheme is as follows.

[0095] 1. The terminal uses its positioning capability and ephemeris information to calculate the frequency offset value of the service link.

[0096] 2. The terminal pre-compensates for the terminal-to-satellite frequency offset only.

[0097] 3. The network does not instruct the terminal on the frequency offset value of the feedback link.

[0098] 4. The network post-compensates for the satellite-to-base station frequency offset.

[0099] 5. After the terminal completes uplink synchronization, it ends the first operation and continues the previous duplicate transmission.

[0100] It should be noted that the execution body of the method for processing duplicate transmissions provided in the embodiments of the present application may be a processing device for duplicate transmissions, or a control module for executing the method for processing duplicate transmissions in the processing device for duplicate transmissions. In the embodiments of the present application, the processing device for duplicate transmissions provided in the embodiments of the present application is taken as an example to execute the method for processing duplicate transmissions by the processing device for duplicate transmissions.

[0101] 4, the embodiment of the present application further provides a duplicate transmission processing device 400. The duplicate transmission processing device 400 is applied to a terminal, and includes: a first obtaining module 401, a first determining module 402 and a first operating module 403.

[0102] The first acquiring module 401 is used for acquiring first information.

[0103] The first determining module 402 is used for determining at least one transmission gap in a first overlapping transmission process based on the first information.

[0104] The first operation module 403 is used for performing a first operation in the transmission gap.

[0105] As an optional embodiment, the first acquisition module: a first acquiring submodule for acquiring the first information in a first manner, where the first manner includes: Network pre-configuration and Radio resource control (RRC) configuration; Downlink control information (DCI) configuration; and a medium access control layer control element MAC CE setting.

[0106] As an alternative embodiment, the first information is: enable information for the transmission gap; time domain offset information of the transmission gap in a first duplicated transmission process; periodicity information of the transmission gap in a first duplicated transmission process; a length of a time domain resource of the transmission gap in a first overlapping transmission process; the number of said transmission gaps in the first duplicated transmission process; a transmission type of a first operation in the transmission gap; and time domain resource information for a first operation in the transmission gap.

[0107] In one alternative embodiment, the transmission type of the first operation in the transmission gap is: Downlink synchronization; monitoring a physical downlink control channel (PDCCH); Uplink synchronization; Random access and Cell reselection; Cell switching and Beam switching and Feedback of completed duplicate transmissions; and and timing advance TA compensation.

[0108] As an alternative embodiment, if the transmission type of the first operation includes downlink synchronization, the length of the time domain resource of the transmission gap is equal to or greater than the time required for uplink-downlink conversion.

[0109] As an optional embodiment, when the transmission type of the first operation is TA compensation, the first operation module: a first submodule for calculating a TA value of a service link based on a positioning capability and an ephemeris; A second submodule for calculating a TA value of a feedback link by using a TA change rate, or for the terminal to determine the TA value of the feedback link according to a network instruction; and a third sub-module for performing TA compensation based on the TA value of a service link and the TA value of a feedback link, where the compensated TA value takes effect at the end of the transmission gap.

[0110] As an optional embodiment, when the transmission type of the first operation is uplink synchronization or downlink synchronization, the first operation module: a fourth submodule for calculating a frequency offset value of the service link based on the positioning capability and the ephemeris information; and a fifth submodule for pre-compensating for a frequency offset from the terminal to the satellite and from the satellite to the base station based on a frequency offset value of the service link and a frequency offset value of a feedback link indicated by a network, or for pre-compensating for a frequency offset from the terminal to the satellite based on a frequency offset value of the service link.

[0111] As an optional example, when the transmission type of the first operation includes beam switching, the first operation module is a sixth submodule for transitioning from an RRC connected state to an RRC idle state in response to a network-triggered RRC connection release order and temporarily stopping the first duplicate transmission process; A seventh submodule for selecting an optimal beam, performing a random access process, and reporting the optimal beam to a network during the random access; and an eighth sub-module for determining a beam to which the terminal is to switch based on a network instruction, and switching to the beam instructed by the network.

[0112] As an optional embodiment, when the transmission type of the first operation includes feedback of completed duplicate transmissions, the first operation module: A ninth submodule for switching to a downlink to receive reception feedback information of the duplicate transmission sent by the network; a 10th sub-module for stopping the first duplicate transmission process after the first operation is completed if the received feedback information is a confirmation feedback, and / or an 11th sub-module for continuing the first duplicate transmission process after the first operation is completed if the received feedback information is a negative feedback.

[0113] As an optional embodiment, when the transmission type of the first operation includes at least one of random access, cell reselection, cell switching, and beam switching, When the terminal completes the random access, the terminal stops the first duplicate transmission process after the first operation is completed; Or, When the terminal completes cell reselection, the terminal stops the first duplicate transmission process after the first operation is completed.

[0114] In an embodiment of the present application, when first information is introduced into a duplicated transmission process and the first information is used to flexibly set a transmission gap in the duplicated transmission process, the terminal can flexibly determine a transmission gap based on the first information, and use the determined transmission gap to perform a first operation, thereby improving the reliability of subsequent duplicated transmission.

[0115] It should be noted that when the duplicate transmission processing device provided in the embodiments of the present application is an device capable of performing the above duplicate transmission processing method, all of the embodiments of the above duplicate transmission processing method can be applied to the device, and the same or similar beneficial effects can be achieved.

[0116] 5, the embodiment of the present application further provides a duplicate transmission processing device 500. The duplicate transmission processing device 500 is applied to a network side device, and includes: a first sending module 501 and a second operation module 502.

[0117] The first sending module 501 is used for sending first information, where the first information is for indicating at least one transmission gap in a first overlapping transmission process.

[0118] A second operation module 502 is used for performing a second operation corresponding to the first operation in the transmission gap.

[0119] As an alternative embodiment, the first transmission module is a first transmitting submodule for transmitting first information in a first manner, where the first manner includes: Network pre-configuration and Radio resource control (RRC) configuration; Downlink control information (DCI) configuration; and a medium access control layer control element MAC CE setting.

[0120] As an alternative embodiment, the first information is: enable information for the transmission gap; time domain offset information of the transmission gap in a first duplicated transmission process; periodicity information of the transmission gap in a first duplicated transmission process; a length of a time domain resource of the transmission gap in a first overlapping transmission process; the number of said transmission gaps in the first duplicated transmission process; a transmission type of a first operation in the transmission gap; and time domain resource information for a first operation in the transmission gap.

[0121] In an alternative embodiment, the device comprises: The information determining module further includes determining the first information based on a transmission time and / or a satellite orbit height in the first overlapping transmission process.

[0122] In one alternative embodiment, the transmission type of the first operation in the transmission gap is: Downlink synchronization; monitoring a physical downlink control channel (PDCCH); Uplink synchronization; Random access and Cell reselection; Cell switching and Beam switching and Feedback of completed duplicate transmissions; and and timing advance TA compensation.

[0123] As an alternative embodiment, if the transmission type of the first operation includes downlink synchronization, the length of the time domain resource of the transmission gap is equal to or greater than the time required for uplink-downlink conversion.

[0124] As an optional embodiment, when the transmission type of the first operation is TA compensation, the second operation module: a twelfth sub-module for calculating a TA value of a feedback link using a TA change rate or ephemeris information, and feeding back the TA value of the feedback link to a terminal, wherein the terminal performs TA compensation based on the TA value of a service link and the TA value of the feedback link, where the compensated TA value takes effect at the end of the transmission gap.

[0125] As an optional embodiment, when the transmission type of the first operation is uplink synchronization or downlink synchronization, the second operation module: a thirteenth submodule for calculating a frequency offset value of a feedback link, and feeding back the frequency offset value of the feedback link to the terminal, such that the terminal pre-compensates for a frequency offset from the terminal to the satellite and from the satellite to the base station based on the frequency offset value of the service link and the frequency offset value of the feedback link; Or, A fourteenth sub-module for calculating a frequency offset value of the feedback link and post-compensating for a frequency offset from the satellite to the base station based on the frequency offset value of the feedback link.

[0126] In one optional embodiment, when the transmission type of the first operation includes beam switching, the second operation module is a fifteenth submodule for sending an RRC connection release order to the terminal to instruct the terminal to move from the RRC connected state to an RRC idle state and temporarily stop the first overlapping transmission process; a sixteenth submodule for receiving an optimal beam reported by the terminal during random access; and a 17th submodule for instructing the terminal to which beam the terminal is to be switched based on the optimal beam.

[0127] As an optional embodiment, when the transmission type of the first operation includes feedback of completed duplicate transmissions, the second operation module: an eighteenth submodule for sending reception feedback information of the duplicated transmission to the terminal; A 19th sub-module for stopping the first duplicate transmission process after the first operation is completed if the receiving feedback information is a confirmation feedback, and / or a 20th sub-module for continuing the first duplicate transmission process after the first operation is completed if the receiving feedback information is a negative feedback.

[0128] As an optional embodiment, when the transmission type of the first operation includes at least one of random access, cell reselection, cell switching, and beam switching, When the terminal completes the random access, the network side device stops the first duplicate transmission process after the first operation is completed; or When the terminal completes cell reselection, the network side equipment stops the first duplicate transmission process after completing the first operation.

[0129] In an embodiment of the present application, when first information is introduced into a duplicated transmission process and the first information is used to flexibly set a transmission gap in the duplicated transmission process, the terminal can flexibly determine a transmission gap based on the first information, and use the determined transmission gap to perform a first operation, thereby improving the reliability of subsequent duplicated transmission.

[0130] It should be noted that when the duplicate transmission processing device provided in the embodiments of the present application is an device capable of performing the above duplicate transmission processing method, all of the embodiments of the above duplicate transmission processing method can be applied to the device, and the same or similar beneficial effects can be achieved.

[0131] The processing device for duplicate transmission in the embodiment of the present application may be a device, a device or electronic device having an operating system, or may be a component, integrated circuit, or chip in a terminal. The device or electronic device may be a portable terminal or a non-portable terminal. By way of example, the portable terminal may include, but is not limited to, the types of terminal 11 listed above, and the non-portable terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), an automated teller machine or a kiosk, etc., and is not specifically limited in the embodiment of the present application.

[0132] The duplicate transmission processing device provided in the embodiment of the present application can realize each process realized in the method embodiment of Figure 1 to Figure 3, and achieve the same technical effect. In order to avoid repetition, the description is omitted here.

[0133] Optionally, as shown in FIG. 6, the embodiment of the present application further provides a communication device 600. The communication device 600 includes a processor 601, a memory 602, and a program or command stored in the memory 602 and executable by the processor 601. For example, when the communication device 600 is a terminal, the program or command is executed by the processor 601 to realize each process of the embodiment of the method for processing duplicated transmissions, and the same technical effect can be achieved. When the communication device 600 is a network side device, the program or command is executed by the processor 601 to realize each process of the embodiment of the method for processing duplicated transmissions, and the same technical effect can be achieved. In order to avoid repetition, the description is omitted here.

[0134] The embodiment of the present application further provides a terminal, which includes a processor and a communication interface, the communication interface being used to obtain first information, and the processor being used to determine at least one transmission gap in a first overlapping transmission process according to the first information, and perform a first operation in the transmission gap. The embodiment of the terminal corresponds to the embodiment of the method on the terminal side described above, and each implementation process and realization form of the embodiment of the method can be applied to the embodiment of the terminal, and can achieve the same technical effects. Specifically, FIG. 7 is a hardware structure schematic diagram of a terminal for implementing the embodiment of the present application.

[0135] The terminal 700 includes at least some of the following components, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0136] Those skilled in the art can understand that the terminal 700 may further include a power source (e.g., a battery) for supplying power to each component, and the power source is logically connected to the processor 710 via a power management system, which may further realize functions such as charge / discharge management and power consumption management. The structure of the terminal shown in FIG. 7 is not intended to limit the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different component arrangement, and the description thereof will be omitted here.

[0137] It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 for processing image data of static or video captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode, and a microphone 7042. The display unit 706 may include a display panel 7061, which may be arranged in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. The other input devices 7072 may include, but are not limited to, a physical keyboard, a function button (e.g., a volume control button, a switch button, etc.), a trackball, a mouse, and a control lever, and the description thereof is omitted here.

[0138] In the embodiment of the present application, the radio frequency unit 701 receives downlink data from the network side device, processes the data in the processor 710, and transmits uplink data to the network side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0139] The memory 709 can be used to store software programs or commands and various data. The memory 709 may mainly include a program or command storage area and a data storage area that can store an operating system, an application or command required for at least one function (e.g., a sound playback function, an image playback function, etc.). The memory 709 may also include a high-speed random access memory, and may further include a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage device may be included.

[0140] The processor 710 may include one or more processing units, and may optionally integrate an application processor that mainly processes an operating system, a user interface, and applications or commands, etc., and a modem processor that mainly processes wireless communication, such as a baseband processor, in the processor 710. It is understandable that the modem processor may not be integrated into the processor 710.

[0141] Here, the high frequency unit 701 is used to obtain the first information.

[0142] The processor 710 is used for determining, based on the first information, at least one transmission gap in the first overlapping transmission process, and performing a first operation on the transmission gap.

[0143] In an embodiment of the present application, when first information is introduced into a duplicated transmission process and the first information is used to flexibly set a transmission gap in the duplicated transmission process, the terminal can flexibly determine a transmission gap based on the first information, and use the determined transmission gap to perform a first operation, thereby improving the reliability of subsequent duplicated transmission.

[0144] It should be noted that if the terminal provided in the embodiments of the present application is a terminal capable of performing the above-mentioned method for processing duplicated transmission, the embodiments of the above-mentioned method for processing duplicated transmission can all be applied to the terminal, and the same or similar beneficial effects can be achieved.

[0145] An embodiment of the present application further provides a network side device, the network side device including a processor and a communication interface, the communication interface being used for sending first information, the first information being for indicating at least one transmission gap in a first overlapping transmission process, and the processor being used for performing a second operation corresponding to the first operation in the transmission gap. The embodiment of the network side device corresponds to the method embodiment of the network side device, and each implementation process and realization form of the method embodiment can be applied to the embodiment of the network side device, and the same technical effects can be achieved.

[0146] Specifically, the embodiment of the present application further provides a network side device. As shown in Fig. 8, the network side device 800 includes an antenna 81, a radio frequency device 82, and a baseband device 83. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81, and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and transmits it to the radio frequency device 82, and the radio frequency device 82 processes the received information before transmitting it via the antenna 81.

[0147] The above-mentioned frequency band processing device may be in a baseband device 83 , and the method performed by the network side device in the above-mentioned embodiment can be realized in the baseband device 83 , which includes a processor 84 and a memory 85 .

[0148] The baseband device 83 may, for example, include at least one baseband board having multiple chips installed thereon, and as shown in FIG. 8, one of the chips is, for example, a processor 84 connected to a memory 85 to call a program in the memory 85 and perform the operations of the network side equipment shown in the above method embodiments.

[0149] The baseband device 83 may further include a network interface 86 for interacting with the radio frequency device 82, the interface being, for example, a Common Public Radio Interface (CPRI).

[0150] Specifically, the network side device according to the embodiment of the present invention further includes a command or program stored in the memory 85 and executable by the processor 84, and the processor 84 calls the command or program in the memory 85 to execute the method executed by each module shown in Fig. 8, and the same technical effect is achieved. In order to avoid repetition, the description will be omitted here.

[0151] The embodiment of the present application further provides a readable storage medium, which may be non-volatile or volatile, and stores a program or command, which, when executed by a processor, realizes each process of the embodiment of the method for processing duplicated transmission, and can achieve the same technical effect. In order to avoid repetition, the description is omitted here.

[0152] The embodiment of the present application further provides a computer program product, which is stored in a non-transitory storage medium and is executed by at least one processor to realize the steps of the method for processing duplicate transmissions provided in the embodiment of the present application, and can achieve the same technical effect. In order to avoid repetition, the description is omitted here.

[0153] Here, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0154] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to execute a program or command to realize each process of the embodiment of the method for processing duplicated transmission, and can achieve the same technical effect. In order to avoid repetition, the description is omitted here.

[0155] It should be understood that the chips referred to in the embodiments of this application may be referred to as system level chips, system chips, chip systems, system on chips, or the like.

[0156] It should be noted that in this specification, the terms "comprise", "consist of" or any other variations are intended to include a non-exclusive inclusion, whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly stated or inherent to such process, method, article, or apparatus. Unless otherwise specified, an element limited by the phrase "comprises a" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. It should also be noted that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions substantially simultaneously or in the reverse order depending on such functions, for example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Also, features described with reference to any example may be combined in other examples.

[0157] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be realized in the form of a combination of software and a necessary common hardware platform, and of course, they can also be realized by hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solutions of the present application can be substantially or the part that contributes to the prior art can be embodied in the form of a computer software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a number of commands that cause a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the embodiments of the present application.

[0158] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the suggestions of the present application, many forms that a person skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application.

Claims

1. A terminal acquires first information; The terminal determines at least one transmission gap in a first overlapping transmission process based on the first information; The terminal performs a first operation in the transmission gap, a transmission type of the first operation in the transmission gap including timing advance (TA) compensation; When the transmission type of the first operation is TA compensation, the step of the terminal performing a first operation in the transmission gap includes: The terminal calculating a TA value of a service link based on a positioning capability and an ephemeris; The terminal calculates a TA value of a feedback link using a TA change rate, or the terminal determines a TA value of a feedback link according to a network instruction; The terminal performs TA compensation based on a TA value of a service link and a TA value of a feedback link, the compensated TA value becoming effective at the end of the transmission gap.

2. The step of the terminal acquiring first information includes: The terminal acquires the first information in a first manner, the first manner comprising: Network pre-configuration and Radio resource control (RRC) configuration; Downlink control information (DCI) configuration; and a Medium Access Control Layer Control Element (MAC CE) configuration.

3. The first information is enable information for the transmission gap; time domain offset information of the transmission gap in the first duplicate transmission process; periodicity information of the transmission gap in the first duplicated transmission process; a length of a time domain resource of the transmission gap in the first overlapping transmission process; the number of said transmission gaps in said first duplicate transmission process; a transmission type of a first operation in the transmission gap; and time domain resource information for a first operation in the transmission gap.

4. The transmission type of the first operation in the transmission gap is Downlink synchronization; monitoring a physical downlink control channel (PDCCH); Uplink synchronization; Random access and Cell reselection; Cell switching and Beam switching and and feedback of completed duplicate transmissions.

5. The method of claim 4, wherein if the transmission type of the first operation includes downlink synchronization, a length of the time domain resource of the transmission gap is equal to or greater than a time length required for uplink-downlink conversion.

6. When a transmission type of the first operation is uplink synchronization or downlink synchronization, the step of the terminal performing a first operation in the transmission gap comprises: said terminal calculating a frequency offset value of a service link based on positioning capability and ephemeris information; and the terminal pre-compensating for terminal-to-satellite and satellite-to-base station frequency offsets based on a service link frequency offset value and a network-instructed feedback link frequency offset value, or the terminal pre-compensating for terminal-to-satellite frequency offsets based on a service link frequency offset value.

7. When a transmission type of the first operation includes beam switching, the step of the terminal performing a first operation in the transmission gap comprises: the terminal going from an RRC connected state to an RRC idle state in response to an RRC connection release order triggered by the network, and temporarily stopping the first duplicate transmission process; A terminal selects an optimal beam, performs a random access process, and reports the optimal beam to a network during the random access; The method according to claim 4, further comprising: determining, by the terminal, a beam to which the terminal is to switch based on a network instruction, and switching to the beam instructed by the network.

8. When a transmission type of the first operation includes feedback of completed duplicate transmissions, the step of the terminal performing a first operation in the transmission gap further comprises: The terminal switches to a downlink to receive reception feedback information of the duplicate transmission sent by the network; 5. The method of claim 4, further comprising: if the receiving feedback information is a confirmation feedback, the terminal stops the first duplicate transmission process after the first operation is completed; or if the receiving feedback information is a negative feedback, the terminal continues to perform the first duplicate transmission process after the first operation is completed.

9. When the transmission type of the first operation includes at least one of random access, cell reselection, cell switching, and beam switching, When the terminal completes the random access, the terminal stops the first duplicate transmission process after the first operation is completed; Or, The method of claim 4 , wherein the terminal stops the first duplicate transmission process after the first operation is completed when the terminal completes cell reselection.

10. a network side device sending first information, the first information being for indicating at least one transmission gap in a first overlapping transmission process; and performing a second operation corresponding to the first operation by the network side device in the transmission gap, the transmission type of the first operation including a timing advance (TA) compensation; When the transmission type of the first operation is TA compensation, the step of the network side device performing a second operation corresponding to the first operation in the transmission gap includes: The method for processing duplicate transmissions includes a step in which the network side device calculates a TA value of a feedback link using a TA change rate or almanac information, feeds back the TA value of the feedback link to a terminal, and the terminal performs TA compensation based on the TA value of a service link and the TA value of the feedback link, the compensated TA value becoming effective at the end of the transmission gap.

11. The first information is enable information for the transmission gap; time domain offset information of the transmission gap in a first duplicated transmission process; periodicity information of the transmission gap in a first duplicated transmission process; a length of a time domain resource of the transmission gap in a first overlapping transmission process; the number of said transmission gaps in the first duplicated transmission process; a transmission type of a first operation in the transmission gap; and time domain resource information for the first operation in the transmission gap.

12. The method comprises: The method of claim 11, further comprising: a network side device determining the first information based on a transmission time and / or a satellite orbit height in a first overlapping transmission process.

13. The transmission type of the first operation in the transmission gap is Downlink synchronization; monitoring a physical downlink control channel (PDCCH); Uplink synchronization; Random access and Cell reselection; Cell switching and Beam switching and and feedback of completed duplicate transmissions.

14. When a transmission type of the first operation is uplink synchronization or downlink synchronization, the step of the network side device performing a second operation corresponding to the first operation in the transmission gap comprises: a network side device calculating a frequency offset value of a feedback link, and feeding back the frequency offset value of the feedback link to a terminal, and the terminal pre-compensating for frequency offsets from the terminal to the satellite and from the satellite to the base station according to the frequency offset value of the service link and the frequency offset value of the feedback link; Or, The network side equipment calculates a frequency offset value of a feedback link, and post-compensates for a frequency offset from a satellite to a base station based on the frequency offset value of the feedback link; Or, When the transmission type of the first operation includes beam switching, the step of the network side device performing a second operation corresponding to the first operation in the transmission gap includes: a network side device sending an RRC connection release order to the terminal, instructing the terminal to move from an RRC connected state to an RRC idle state and temporarily stop the first duplicate transmission process; receiving an optimal beam reported by the terminal during random access by the network side device; A step in which the network side device instructs the terminal to select a beam to be switched to based on the optimal beam; Or, If the transmission type of the first operation includes feedback of a completed duplicate transmission, the step of the network side device performing a second operation corresponding to the first operation in the transmission gap includes: A network side device sends reception feedback information of duplicate transmission to a terminal; The method of claim 13, further comprising: if the receiving feedback information is a confirmation feedback, the network side device stops the first duplicate transmission process after the first operation is completed; or if the receiving feedback information is a negative feedback, the network side device continues to perform the first duplicate transmission process after the first operation is completed.

15. When the transmission type of the first operation includes at least one of random access, cell reselection, cell switching, and beam switching, When the terminal completes the random access, the network side device stops the first duplicate transmission process after the first operation is completed; Or, The method according to claim 13, wherein when the terminal completes cell reselection, the network side equipment stops the first duplicate transmission process after the first operation is completed.

16. A terminal comprising a processor, a memory, and a program or command stored in the memory and executable in the processor, the program or command being executed by the processor to implement the steps of the method for handling duplicate transmissions according to any one of claims 1 to 9.

17. A network side device comprising a processor, a memory, and a program or command stored in the memory and executable by the processor, the program or command implementing steps of the method for handling duplicate transmissions according to any one of claims 10 to 15 when executed by the processor.

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