Uplink transmission method and device, terminal equipment and network equipment

Abstract

Provided in an embodiment of the present application are an uplink transmission method and apparatus, a terminal device, and a network device, the method comprising: a terminal device determining a segment TDW corresponding to a target uplink channel according to a first segment length, the target uplink channel comprising N uplink channels, the time interval of time domain synchronization and / or frequency domain synchronization adjustment between the segmented TDW and the terminal equipment has an association relationship, and N is a positive integer; and the terminal equipment sends the target uplink channel according to the segmented TDW.

Description

Uplink transmission method and device, terminal equipment, and network equipment Technical Field

[0001] The embodiments of the present application relate to the field of mobile communication technology, and specifically to an uplink transmission method and apparatus, terminal equipment, and network equipment. Background Art

[0002] Communication system scenarios include terrestrial networks (TN) and non-terrestrial networks (NTN). NTN generally uses satellite communications to provide communication services to terminal devices on the ground.

[0003] In NTN networks, due to characteristics such as long signal propagation delays and satellite mobility, coupled with insufficient transmit power in terminal devices, poor uplink coverage can occur. In TN, coverage enhancement can be achieved through joint channel estimation using DMRS bundling. However, there is currently no clear method for applying this coverage enhancement technology in NTN networks.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide an uplink transmission method and apparatus, a terminal device, and a network device.

[0006] In a first aspect, an uplink transmission method is provided, the method comprising:

[0007] The terminal device determines a segment time domain window (STDW, referred to as segment TDW) corresponding to the target uplink channel based on the first segment length, wherein the target uplink channel includes N uplink channels, the segment TDW is associated with a time interval for adjusting time domain synchronization and / or frequency domain synchronization of the terminal device, and N is a positive integer;

[0008] The terminal device sends the target uplink channel according to the segmented TDW.

[0009] In a second aspect, an uplink transmission method is provided, the method comprising:

[0010] The network device receives a target uplink channel; the target uplink channel includes N uplink channels, N is a positive integer, the target uplink channel is transmitted in a segmented TDW, the segmented TDW is determined according to the first segment length, and the segmented TDW is associated with the time interval for the terminal device to perform time domain synchronization and / or frequency domain synchronization adjustment.

[0011] In a third aspect, an uplink transmission device is provided, which is applied to a terminal device, including:

[0012] A first determining unit is configured to determine a segmented TDW corresponding to a target uplink channel according to the first segment length, wherein the target uplink channel includes N uplink channels, the segmented TDW is associated with a time interval for adjusting time domain synchronization and / or frequency domain synchronization of the terminal device, and N is a positive integer;

[0013] The first sending unit is configured to send the target uplink channel according to the segmented TDW.

[0014] In a fourth aspect, an uplink transmission device is provided, which is applied to a network device, including:

[0015] The second receiving unit is configured to receive a target uplink channel; the target uplink channel includes N uplink channels, and the target uplink channel is transmitted in multiple segmented TDWs, and the multiple segmented TDWs are determined according to the first segment length. The segmented TDW is associated with the time interval for time domain synchronization and / or frequency domain synchronization adjustment of the terminal device, and N is a positive integer.

[0016] In a fifth aspect, an embodiment of the present application provides a terminal device, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the uplink transmission method described in the first aspect.

[0017] In a sixth aspect, an embodiment of the present application provides a network device comprising a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the uplink transmission method described in the second aspect.

[0018] In the seventh aspect, the chip provided in the embodiment of the present application is used to implement the above-mentioned uplink transmission method.

[0019] Specifically, the chip includes: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned uplink transmission method.

[0020] In an eighth aspect, the computer-readable storage medium provided in an embodiment of the present application is used to store a computer program, which enables a computer to execute the above-mentioned uplink transmission method.

[0021] In a ninth aspect, the computer program product provided in an embodiment of the present application includes computer program instructions, which enable a computer to execute the above-mentioned uplink transmission method.

[0022] In a tenth aspect, the computer program provided in the embodiment of the present application, when running on a computer, enables the computer to execute the above-mentioned uplink transmission method.

[0023] In the uplink transmission method provided in the embodiment of the present application, the terminal device can determine the segmented TDW corresponding to the target uplink channel based on the first segment length, wherein the segmented TDW is associated with the time interval for the terminal device to perform time domain synchronization and / or frequency domain synchronization adjustment; furthermore, the terminal device can send the target uplink channel based on the segmented TDW. It can be understood that the segmented TDW is associated with the time interval for the terminal device to perform time domain synchronization and / or frequency domain synchronization adjustment. In this way, the terminal device can use the segmented TDW to transmit the target uplink channel, ensuring synchronization between the terminal device and the network device during the transmission of the target uplink channel, while avoiding the low channel estimation gain caused by the terminal device frequently performing synchronization adjustments in the time domain and / or frequency domain. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] FIG1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application;

[0026] FIG2 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application;

[0027] FIG3 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application;

[0028] FIG4 is a schematic diagram of a flow chart of an uplink transmission method provided in an embodiment of the present application;

[0029] FIG5 is a first distribution diagram of a segmented TDW provided in an embodiment of the present application;

[0030] FIG6 is a second schematic diagram of a segmented TDW distribution provided in an embodiment of the present application;

[0031] FIG7 is a schematic diagram showing the distribution of a segmented TDW and an actual TDW provided in an embodiment of the present application;

[0032] FIG8 is a first schematic diagram of the distribution of segmented TDW and nominal TDW provided in an embodiment of the present application;

[0033] FIG9 is a second schematic diagram of the distribution of segmented TDW and nominal TDW provided in an embodiment of the present application;

[0034] FIG10 is a schematic diagram showing the distribution of segmented TDW, nominal TDW, and actual TWD provided in an embodiment of the present application;

[0035] FIG11 is a schematic diagram of a time advance command application time according to an embodiment of the present application;

[0036] FIG12 is a second schematic diagram of an application time of a time advance command provided in an embodiment of the present application;

[0037] FIG13 is a structural diagram of an uplink transmission device according to an embodiment of the present application;

[0038] FIG14 is a second structural diagram of an uplink transmission device provided in an embodiment of the present application;

[0039] FIG15 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0040] FIG16 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0041] Figure 17 is a schematic block diagram of a communication system provided by an embodiment of the present application. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application. The technical solutions recorded in the embodiments of the present application can be arbitrarily combined unless there is a clear and specific limitation. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly defined.

[0043] Communication system scenarios include terrestrial networks (TN) and non-terrestrial networks (NTN). NTNs can use satellite communications to provide communication services to terrestrial users. NTN systems can include New Radio (NR) NTN systems and Internet of Things (IoT) NTN systems.

[0044] FIG1 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. As shown in FIG1 , communication system 100 may be a terrestrial communication network system. Communication system 100 may include terminal device 110 and network device 120. Network device 120 may communicate with terminal device 110 via an air interface. Multi-service transmission is supported between terminal device 110 and network device 120.

[0045] It should be understood that the embodiments of the present application are only illustrative of the communication system 100, but the embodiments of the present application are not limited thereto. That is, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication systems (such as 6G, 7G, etc.).

[0046] The network device 120 in the embodiment of the present application may include an access network device 121 and / or a core network device 122. The access network device may provide communication coverage for a specific geographical area and may communicate with a terminal device 110 (eg, UE) located within the coverage area.

[0047] The terminal device in this application can be called user equipment (UE), mobile station (MS), mobile terminal (MT), user unit, user station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device may include one of the following or a combination of at least two: Internet of Things (IoT) devices, satellite terminals, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, servers, mobile phones, tablet computers, computers with wireless transceiver capabilities, handheld computers, desktop computers, personal digital assistants, portable media players, smart speakers, navigation devices, smart watches, smart glasses, smart necklaces and other wearable devices, pedometers, digital TVs, Virtual Reality (VR) terminal devices, Augmented Reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes. The wireless terminals in the Internet of Vehicles (IoV) and the vehicles, on-board equipment, on-board modules, wireless modems, handheld devices, customer premises equipment (CPE), and smart home appliances in the IoV system.

[0048] Optionally, the terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.

[0049] Optionally, the terminal device 110 may be used for device-to-device (D2D) communication.

[0050] The access network device 121 may include one of the following or a combination of at least two: an evolved base station (eNB or eNodeB) in a Long Term Evolution (LTE) system, a next generation radio access network (NG RAN) device, a base station (gNB) in an NR system, a small station, a micro station, a wireless controller in a cloud radio access network (CRAN), a wireless fidelity (Wi-Fi) access point, a transmission reception point (TRP), a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network device in a future evolved public land mobile network (PLMN), etc.

[0051] The core network device 122 can be a 5G core network (5G Core, 5GC) device. The core network device 122 can include one of the following or a combination of at least two: Access and Mobility Management Function (AMF), Authentication Server Function (AUSF), User Plane Function (UPF), Session Management Function (SMF), and Location Management Function (LMF). In other embodiments, the core network device can also be an Evolved Packet Core (EPC) device of the LTE network, for example, a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions that SMF and PGW-C can implement. During the network evolution process, the above-mentioned core network device 122 may also be called other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited in this embodiment of the present application.

[0052] The functional units in the communication system 100 may also establish connections and implement communication via next generation (NG) network interfaces.

[0053] For example, the terminal device establishes an air interface connection with the access network device through the NR interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (referred to as N1); the access network device, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (referred to as N3); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (referred to as N2); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (referred to as N4); the UPF can exchange user plane data with the data network through the NG interface 6 (referred to as N6); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (referred to as N11); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (referred to as N7).

[0054] Figure 1 exemplarily shows a base station, a core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and each base station may include other numbers of terminal devices within its coverage area, which is not limited in this embodiment of the present application.

[0055] 3GPP is researching Non-Terrestrial Network (NTN) technology. NTNs typically use satellite communications to provide communications services to users on the ground. Compared to terrestrial cellular networks, satellite communications offer many unique advantages. First, satellite communications are not restricted by user location. For example, conventional terrestrial communications cannot cover areas such as oceans, high mountains, and deserts where communications equipment cannot be deployed or where there is a sparse population. However, satellite communications, because a single satellite can cover a large area and orbits the Earth, theoretically every corner of the globe can be covered. Second, satellite communications have significant social value. Satellite communications can provide low-cost coverage in remote mountainous areas and poor, underdeveloped countries and regions, enabling people in these areas to enjoy advanced voice communications and mobile internet technologies, narrowing the digital divide with developed regions and promoting their development. Third, satellite communications offer long range, and the cost of communications does not increase significantly with increasing distance. Finally, satellite communications are highly stable and unaffected by natural disasters.

[0056] NTN technology can be combined with various communication systems. For example, NTN technology can be combined with NR systems to form NR-NTN systems. Another example is NTN technology can be combined with IoT systems to form IoT-NTN systems. IoT-NTN systems can include NB-IoT-NTN systems and eMTC-NTN systems.

[0057] FIG2 is a schematic diagram of the architecture of another communication system provided by an embodiment of the present application. As shown in FIG2 , the communication system 200 of FIG2 may be a non-terrestrial communication network system. The communication system 200 includes a terminal device 201 and a satellite 202, and wireless communication can be performed between the terminal device 201 and the satellite 202. The network formed between the terminal device 201 and the satellite 202 can also be referred to as an NTN. In the architecture of the communication system 200 shown in FIG2 , the satellite 202 can have the function of a base station, and the terminal device 201 and the satellite 202 can communicate directly. In the system architecture, the satellite 202 can be referred to as a network device. In some embodiments of the present application, the communication system 200 may include multiple network devices 202, and each network device 202 may include a different number of terminal devices within its coverage area, which is not limited by the embodiments of the present application.

[0058] FIG3 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. As shown in FIG3 , the communication system 300 in FIG3 may be a non-terrestrial communication network system. The communication system 300 includes a terminal device 301, a satellite 302, and a base station 303. Wireless communication can be performed between the terminal device 301 and the satellite 302, and communication can be performed between the satellite 302 and the base station 303. The network formed between the terminal device 301, the satellite 302, and the base station 303 may also be referred to as an NTN. In the architecture of the communication system 300 shown in FIG3 , the satellite 302 may not function as a base station, and communication between the terminal device 301 and the base station 303 may need to be relayed through the satellite 302. In this system architecture, the base station 303 may be referred to as a network device. In some embodiments of the present application, the communication system 300 may include multiple network devices 303, and each network device 303 may include a different number of terminal devices within its coverage area, but this is not limited in the present embodiment. The network device 303 may be the network device 120 in FIG1 .

[0059] It should be understood that the satellites 202 or 302 include, but are not limited to, low-Earth orbit (LEO) satellites, medium-Earth orbit (MEO) satellites, geostationary Earth orbit (GEO) satellites, and high elliptical orbit (HEO) satellites. Satellites can use multiple beams to cover the ground. For example, a satellite can form dozens or even hundreds of beams to cover the ground. In other words, a satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers, thereby ensuring satellite coverage and improving the system capacity of the entire satellite communication system.

[0060] For example, LEO satellites can have an altitude range of 500 km to 1500 km, with an orbital period of approximately 1.5 to 2 hours. The signal propagation delay for single-hop communication between users is generally less than 20 milliseconds, and the maximum satellite visibility time is 20 minutes. LEO satellites have short signal propagation distances and low link loss, requiring low transmit power from user terminals. GEO satellites can have an orbital altitude of 35,786 km and a period of 24 hours around the Earth. The signal propagation delay for single-hop communication between users is generally 250 milliseconds.

[0061] In order to ensure satellite coverage and improve the system capacity of the entire satellite communication system, satellites use multiple beams to cover the ground. A satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers.

[0062] It should be noted that Figures 1 to 3 illustrate the systems to which this application applies only by way of example. The methods described in the embodiments of this application are also applicable to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and / or" herein simply describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the associated objects are in an "or" relationship. It should also be understood that the term "indication" in the embodiments of this application can be direct, indirect, or indicate an associated relationship. For example, "A indicates B" can mean that A directly indicates B, for example, B can obtain information through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can obtain information through C; or it can mean that A and B have an associated relationship. It should also be understood that the term "corresponding" in the embodiments of this application can mean that two objects have a direct or indirect correspondence relationship, an associated relationship, or a relationship between an indicator and the indicated, a configuration and the configured, and so on. It should also be understood that the “predefined”, “protocol agreement”, “predetermined” or “predefined rules” mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). This application does not limit its specific implementation method. For example, predefined can refer to what is defined in the protocol. It should also be understood that in the embodiments of the present application, the “protocol” may refer to a standard protocol in the field of communications, for example, it may include LTE protocols, NR protocols, and related protocols used in future communication systems, and this application does not limit this.

[0063] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0064] 1. Synchronization Technology in NTN Systems: In an NTN system, network devices need to send synchronization assistance information to terminal devices. This synchronization assistance information is used by the terminal devices to achieve time domain synchronization and / or frequency domain synchronization. The synchronization assistance information can include at least one of the following: serving satellite ephemeris information, common timing advance (TA) parameters, reference time indication information (epoch time, used to determine time t0), and target timer duration.

[0065] Optionally, the terminal device can complete the corresponding time domain synchronization and / or frequency domain synchronization based on the synchronization assistance information and its own Global Navigation Satellite System (GNSS) capability. For example, the terminal device can obtain at least one of the following information based on its GNSS capability: the location of the terminal device, the time reference, and the frequency reference. Then, based on the above information and the synchronization assistance information, the terminal device can obtain the timing and / or frequency deviation, and apply timing advance compensation and / or frequency deviation adjustment in different states (idle state, inactive state, or connected state).

[0066] Optionally, the terminal device can calculate T according to the following formula (1): TA value, and according to the determined T TA The value determines the timing of the upstream channel or upstream signal transmission:

[0067] T TA =(N TA +N TA,offset +N TA,adj common +N TA,adj UE )*Tc (1)

[0068] If the uplink channel includes PRACH or MsgA transmission, then N TA The value is 0, otherwise N TA is the TA value indicated by the network device; N TA,offset Determined based on the network frequency band and LTE or NR coexistence. TA,adj common It is obtained based on the common timing parameters configured by the upper layer (such as common timing value, common timing value offset value and the rate of change of common timing value offset value). If the upper layer does not configure common TA parameters, then N TA,adj common The value is 0. N TA,adj UE It is calculated by the terminal device based on its position and the service satellite ephemeris information configured by the upper layer. If the upper layer does not configure the service satellite ephemeris information, then N TA,adj UE The value is 0. Tc represents the sampling time interval unit, Tc = 1 / (480*1000*4096).

[0069] Optionally, because synchronization assistance information can change over time, one or more timers may be configured for terminal devices in the NTN system. These timers can be used by the terminal device to determine whether the acquired synchronization assistance information is valid. For example, the synchronization assistance information may correspond to a target timer. After the terminal device starts or restarts the target timer, the terminal device may assume that the acquired synchronization assistance information is valid until the target timer expires (or the target timer expires).

[0070] In practical applications, the serving satellite ephemeris information in the synchronization assistance information is used to determine the position and velocity state (PVS) vector information of the serving satellite. The serving satellite ephemeris information in the synchronization assistance information can include at least one of the following two formats:

[0071] Format 1: Ephemeris information format based on instantaneous state vector, such as the PVS vector of the satellite at a specific time. In this format, the satellite ephemeris information includes the PVS vector (S X ,S Y ,S Z ,V X ,V Y ,V Z ).

[0072] As an example and not a limitation, the terminal device obtains the PVS vector of the satellite based on the geocentric coordinate system at time t based on the PVS vector of the satellite based on the geocentric coordinate system at time t0.

[0073] Format 2: Orbital information-based ephemeris information format. In this format, the satellite ephemeris information includes the ephemeris parameters at time t0 (α (km), e, I (deg), Ω (deg), ω (deg), M (deg)). α represents the semi-major radius (unit can be meters), e represents the eccentricity (Eccentricity), ω represents the periapsis angle (unit can be rad (radian angle)), Ω represents the longitude of the ascending node (unit can be rad), i represents the inclination (unit can be rad), and M represents the mean anomaly angle (Mean anomaly M at epoch time t0, unit can be rad).

[0074] As an example and not a limitation, the terminal device can obtain the satellite's PVS vector based on the Earth-Centered, Earth-Fixed (ECEF) coordinate system (also known as the geocentric coordinate system) at time t0 based on the received ephemeris parameters at time t0. The terminal device can obtain the satellite's PVS vector based on the geocentric coordinate system at time t based on the satellite's PVS vector based on the geocentric coordinate system at time t0.

[0075] As an example and not a limitation, the terminal device obtains the ephemeris parameters of the satellite at time t based on the received ephemeris parameters of the satellite at time t0; then the terminal device can obtain the PVS vector of the satellite based on the geocentric coordinate system at time t based on the ephemeris parameters of the satellite at time t.

[0076] The PVS vectors based on the geocentric coordinate system include (S X ,S Y ,S Z ,V X ,V Y ,V Z ). Among them, (S X ,S Y ,S Z ) corresponds to the satellite position, the unit is m; (V X ,V Y ,V Z ) corresponds to the satellite speed in m / s.

[0077] Of the two formats mentioned above, format 2 has lower notification overhead than format 1. However, in format 2, the terminal device needs to model and estimate the satellite's PVS vector, so the accuracy is lower than that of format 1.

[0078] In some embodiments of the present application, the common timing advance TA parameter includes at least one of the following information: a common timing value (in μs), a common timing value offset value (e.g., a first-order derivative of the common timing value, in μs / s), a rate of change of the common timing value offset value (e.g., a second-order derivative of the common timing value, in μs / s), 2 ).

[0079] Coverage enhancement technology in NR system: In the NR system, a coverage enhancement technology based on joint channel estimation with demodulation reference signal (DMRS) bundling is introduced. The target uplink channels to which this coverage enhancement technology can be applied include physical uplink shared channel (PUSCH) repetition transmission type A (which can be scheduled or pre-configured with DCI format 0_1 ​​or DCI format 0_2), PUSCH repetition transmission type B, PUSCH processing (TB processing over multiple slots, TBoMS) in which one TB is mapped over multiple time slots, and physical uplink control channel (PUCCH) repetition transmission. In order to realize joint channel estimation based on DMRS bundling, it is necessary to enhance aspects such as power consistency and phase continuity, DMRS in special time slots, and time domain hopping interval of time slot hopping using time slot bundling.

[0080] Joint channel estimation introduces the concepts of nominal time domain window (NTDW) and actual time domain window (ATDW). The transmission of a target uplink channel can be covered by one or more nominal time domain windows, where, except for the last nominal time domain window, the lengths of other nominal time domain windows can be configured or predefined by the network device. A nominal time domain window can include one or more actual time domain windows. The terminal device needs to maintain power consistency and phase continuity within an actual time domain window. Correspondingly, the network device can perform DMRS joint channel estimation within an actual time domain window.

[0081] For example, in a nominal time domain window (referred to as nominal TDW), the starting position of the first actual time domain window (referred to as actual TDW) is the first symbol of the first PUSCH in the nominal TDW. If an event occurs that destroys power consistency and phase continuity, the end position of the actual TDW is the last symbol of the PUSCH transmission before the event occurs; otherwise, the end position of the actual TDW is the last symbol of the last PUSCH in the nominal TDW. When an event that destroys power consistency and phase continuity occurs, if the terminal device has the ability to restart DMRS binding, a new actual TDW will be created after the event ends; if the terminal device does not have the ability to restart DMRS binding, no new actual TDW will be created until the end of the nominal TDW. Among them, when the terminal device supports DMRS binding, if the power consistency and phase continuity are destroyed due to a semi-static event (for example, the event is not triggered by DCI or MAC-CE), the terminal device must support the restart of DMRS binding; if the power consistency and phase continuity are destroyed due to a dynamic event (for example, the event is triggered by DCI or MAC-CE), whether the terminal device supports the restart of DMRS binding is an optional capability.

[0082] The events that destroy power consistency and phase continuity include at least one of the following:

[0083] 1. In the Time Division Duplex (TDD) spectrum, a downlink timeslot or downlink reception or downlink monitoring determined based on a semi-static downlink / uplink configuration pattern;

[0084] 2. For a normal cyclic prefix (CP), the interval between two consecutive uplink channel transmissions is greater than 13 symbols; for an extended CP, the interval between two consecutive uplink channel transmissions is greater than 11 symbols;

[0085] 3. The interval between two consecutive uplink channel transmissions is not greater than 13 symbols but other uplink transmissions are scheduled in that interval (or, for non-back-to-back PUSCH / PUCCH transmissions on multiple consecutive time slots, other uplink transmissions between two PUSCH / PUCCH transmissions);

[0086] 4. Based on the collision rules defined by the protocol, uplink channel transmission is discarded or canceled;

[0087] 5. Two consecutive PUSCH transmissions are associated with different UL beams (or, for multi-TRP operation, if DMRS bundling and UL beam switching are configured at the same time, for multi-TRP operation, UL beam switching is an event that destroys power consistency and phase continuity, and this event is treated as a semi-static event);

[0088] 6. Two consecutive PUCCH transmissions are associated with different UL beams or different power control parameters (or, for multi-TRP operation, a power control parameter change is also an event that destroys power consistency and phase continuity, and this event is considered a semi-static event);

[0089] 7. Uplink TA adjustment after receiving the TA command sent by the network device;

[0090] 8. Frequency hopping processing in the frequency domain;

[0091] 9. For reduced capability half-duplex UE (RedCap HD-FDD UE), the dropping or cancellation of PUSCH transmissions based on protocol-defined drop rules; and / or the presence of symbols overlapping with downlink reception / monitoring between two consecutive PUSCH transmissions (even if neither of the two repeated transmitted symbols overlaps with downlink reception / monitoring).

[0092] In current NTN systems, due to the characteristics of NTN networks, such as satellite mobility, information transmission experiences significant latency, potentially resulting in poor coverage for terminal devices. In evolving NTN networks, it is necessary to consider technologies to enhance terminal device coverage. For example, joint channel estimation based on DMRS bundling could be introduced to NTN networks. However, how to apply this coverage enhancement technology in NTN systems is currently unclear.

[0093] It should be understood that the coverage enhancement technology based on DMRS binding joint channel estimation requires the terminal device to support uplink repeated transmission. The introduction of uplink repeated transmission will cause the transmission time of the target uplink channel of the terminal device to continue for a longer time. Since the satellite in the NTN system is always in a mobile state, if the terminal device does not perform synchronization adjustment in the time domain and / or frequency domain during the transmission of the target uplink channel, it may cause the uplink synchronization of the terminal device to fail to meet the accuracy requirements. However, the enhanced coverage technology based on DMRS binding joint channel estimation requires the terminal device to maintain power consistency and phase continuity for a period of time. If the terminal device frequently performs synchronization adjustment in the time domain and / or frequency domain during the transmission of the target uplink channel, it may cause the network device to be unable to determine the timing of the terminal device adjusting the uplink synchronization, thereby resulting in a reduction in the gain of the joint channel estimation based on DMRS binding. Therefore, in the NTN system, how to ensure the gain of the joint channel estimation while meeting the synchronization accuracy requirements is an urgent problem to be solved.

[0094] To solve this problem, an embodiment of the present application provides an uplink transmission method. Referring to the flowchart shown in FIG4 , the uplink transmission method provided by the embodiment of the present application may include the following steps:

[0095] Step 410: The terminal device determines a segment time domain window (STDW, referred to as segment TDW) corresponding to a target uplink channel based on the first segment length, where the target uplink channel includes N uplink channels, where N is a positive integer; and the segment TDW is associated with a time interval for adjusting time domain synchronization and / or frequency domain synchronization of the terminal device.

[0096] Step 420: The terminal device sends the target uplink channel according to the segmented TDW.

[0097] Step 430: The network device receives a target uplink channel, which is transmitted in a segmented TDW. The segmented TDW is determined according to a first segment length, and the segmented TDW is associated with a time interval for adjusting time domain synchronization and / or frequency domain synchronization of the terminal device.

[0098] It should be noted that the terminal device may be a terminal device in an NTN, and the corresponding network device is a network device in the NTN. In some embodiments, the terminal device may also be a terminal device in a TN, and the corresponding network device is a network device in the TN. This embodiment of the application does not limit this.

[0099] In the embodiment of the present application, the first segment length may be a time length or a length of a time domain resource. The time unit of the first segment length may be one or more time slots, one or more subframes, one or more symbols, one or more PUSCH transmission durations, one or more PUCCH transmission durations, one or more milliseconds, or one or more microseconds, etc., and the embodiment of the present application does not impose any limitation on this.

[0100] It should be noted that the first segment length is predefined, or determined according to a predefined rule, or determined according to the first configuration information sent by the network device, or determined according to the segment length set configured by the network device. The embodiment of the present application does not impose any restrictions on this.

[0101] Optionally, the first configuration information may be carried by at least one of the following information:

[0102] System messages, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) unit (CE), Downlink Control Information (DCI).

[0103] Optionally, when the terminal device is in a connected state, the first configuration information is carried through terminal device-specific RRC signaling (e.g., an RRC connection configuration message or an RRC connection reconfiguration message); and / or, when the terminal device is in an idle state or an inactive state, the first configuration information is carried through a system message.

[0104] Optionally, when the first configuration information is configured by terminal device-specific RRC signaling, the terminal device determines the first segment length according to the first configuration information in the terminal device-specific RRC signaling; otherwise, the terminal device determines the first segment length according to the first configuration information in the system message.

[0105] Optionally, the terminal device may also determine the first segment length according to predefined parameters or predefined rules.

[0106] That is, the terminal device can calculate the length of the first segment by itself. The predefined parameters may be attribute parameters or capability parameters of the terminal device, etc., which are not limited in the embodiments of the present application. Exemplarily, the predefined parameters may include a minimum time interval within which the terminal device can perform time domain synchronization and / or frequency domain synchronization; and / or a maximum time interval within which the terminal device can perform time domain synchronization and / or frequency domain synchronization.

[0107] The predefined rule may be a rule agreed upon by the terminal device and the network device, or a rule defined in the protocol, and the embodiments of the present application do not limit this. Exemplarily, the predefined rule may be to use the maximum time interval for the terminal device to perform time domain synchronization and / or frequency domain synchronization as the first segment length, or to use the minimum time interval for the terminal device to perform time domain synchronization and / or frequency domain synchronization as the first segment length.

[0108] In addition, the target uplink channel in the embodiment of the present application may include N uplink channels, where N is an integer greater than or equal to 1. Optionally, the target uplink channel may be determined by a time domain resource allocation indication. For example, the network device may send a time domain resource allocation indication to the terminal device, and the terminal device determines the target uplink channel according to the time domain resource allocation indication.

[0109] It should be noted that the time domain resource allocation indication can be a semi-static resource configuration indication (such as a PUSCH configuration authorization configured through RRC signaling) or a dynamic resource allocation indication (such as an uplink authorization through DCI), and the embodiments of the present application do not limit this.

[0110] Optionally, the target uplink channel may include at least one of the following: PUSCH, PUCCH and PRACH.

[0111] Optionally, when the PUSCH includes N uplink channels (for example, the target PUSCH includes N PUSCHs), the N uplink channels may include at least one of the following: PUSCH repetition transmission type A, PUSCH repetition transmission type B, and a PUSCH mapped on multiple time slots (TBoMS).

[0112] Among them, PUSCH repetition transmission type A can be pre-configured or scheduled through DCI format 0_1 ​​or DCI format 0_2, and this embodiment of the present application does not limit this.

[0113] Optionally, when the PUCCH includes N uplink channels (for example, the target PUCCH includes N PUCCHs), the N uplink channels may include repeated transmission of the PUCCH.

[0114] In this embodiment of the present application, the terminal device can divide the transmission duration of the target uplink channel into one or more segmented TDWs based on the first segment length to obtain the segmented TDW corresponding to the target uplink channel. In other words, the transmission duration of the target uplink channel can be covered by at least one segmented TDW.

[0115] It should be understood that the first segment length can be used for the terminal device to perform time domain synchronization and / or frequency domain synchronization adjustment. The segmented TDW corresponding to the target uplink channel determined according to the first segment length can be associated with the time interval for the terminal device to perform time domain synchronization and / or frequency domain synchronization adjustment. For example, the length of the segmented TDW can be greater than the minimum time interval for the terminal device to perform time domain synchronization and / or frequency domain synchronization, or the length of the segmented TDW can be less than the maximum time interval for the terminal device to perform time domain synchronization and / or frequency domain synchronization, and the embodiments of the present application do not impose any restrictions on this.

[0116] Furthermore, after determining the segmented TDW, the terminal device may perform time domain synchronization and / or frequency domain synchronization adjustment for the segmented TDW, and send the target uplink channel after performing the time domain synchronization and / or frequency domain synchronization adjustment.

[0117] In some embodiments, if the transmission duration of the target uplink channel corresponds to at least one segmented TDW, the terminal device sends the target uplink channel according to the segmented TDW, which can be achieved by:

[0118] Before sending a target uplink channel through each segmented TDW in at least one segmented TDW, the terminal device performs time domain synchronization and / or frequency domain synchronization adjustment for each segmented TDW.

[0119] That is, the terminal device can adjust the timing synchronization compensation and / or frequency offset synchronization compensation for each segmented TDW, and after completing the timing synchronization compensation and / or frequency offset synchronization compensation, send the uplink channel corresponding to each segmented TDW, thereby ensuring the synchronization accuracy between the terminal device and the network device.

[0120] Exemplarily, as shown in reference figure 5, the target uplink channel may include 10 PUSCH repetitions and two channel gaps (GAPs), wherein each PUSCH occupies one time slot and each GAP also occupies one time slot, that is, the target uplink channel may include 12 time slots. Assuming that the length of the first segment is 4 time slots, the transmission duration of the target uplink channel may be divided into 3 segmented TDWs, wherein segmented TDW1 covers the first 4 time slots of the target uplink channel, segmented TDW2 covers the middle 4 time slots of the target uplink channel, and segmented TDW3 covers the last 4 time slots of the target uplink channel. For the first segmented TDW (i.e., segmented TDW1), when the terminal device needs to send the target uplink channel through segmented TDW1, the terminal device may perform time domain synchronization and / or frequency domain synchronization adjustment before transmitting PUSCH 1, and after completing the time domain synchronization and / or frequency domain synchronization adjustment, send the uplink channels corresponding to segmented TDW1 (i.e., PUSCH 1, PUSCH 2, and PUSCH 3). In addition, before the terminal device sends the target uplink channel through segmented TDW2 and segmented TDW3, it also needs to perform time domain synchronization and / or frequency domain synchronization adjustment.

[0121] Optionally, the terminal device performs time domain synchronization and / or frequency domain synchronization adjustment, including: the terminal device performs time domain synchronization and / or frequency domain synchronization adjustment according to at least one of the terminal device's position, public timing parameters and service satellite ephemeris information.

[0122] Optionally, the terminal device performs time domain synchronization and / or frequency domain synchronization adjustment, including: the terminal device determines T according to formula (1) TA value.

[0123] In addition, the network device can determine one or more segmented TDWs corresponding to the target uplink channel based on the first segment length. In this way, the network device can determine that before the terminal device sends the target uplink channel through each segmented TDW in the at least one segmented TDW, it performs time domain synchronization and / or frequency domain synchronization adjustment for each segmented TDW.

[0124] That is to say, the network device can also determine the segmented TDW corresponding to the target uplink channel based on the first segment length. After receiving the target uplink channel, it can obtain the timing for the terminal device to perform time domain synchronization and / or frequency domain synchronization adjustment based on the determined segmented TDW, and thus perform corresponding channel estimation based on the timing of the terminal device performing uplink synchronization.

[0125] It can be seen that in the uplink transmission method provided in the embodiment of the present application, the terminal device can determine the segmented TDW corresponding to the target uplink channel based on the first segment length, and perform time domain synchronization and / or frequency domain synchronization on each segmented TDW, thereby ensuring synchronization between the terminal device and the network device during the transmission of the target uplink channel, and at the same time avoiding the low channel estimation gain caused by the terminal device frequently performing synchronization adjustments in the time domain and / or frequency domain.

[0126] The relationship between the segmented TDW and the target uplink channel is described in detail below.

[0127] In some embodiments, the transmission duration of the target uplink channel corresponds to at least one segmented TDW, and a starting position of a first segmented TDW in the at least one segmented TDW is a starting position of a first uplink channel in the N uplink channels.

[0128] That is, the terminal device or network device may divide the transmission duration of the target uplink channel from the starting position of the first uplink channel of the target uplink channel to obtain at least one segmented TDW corresponding to the target uplink channel. It should be understood that the starting position of the first segmented TDW in the at least one segmented DWT is the same as the starting position of the target uplink channel.

[0129] Optionally, the starting position of the first uplink channel is the first symbol of the first uplink channel.

[0130] It should be noted that a symbol may be the smallest time unit in the time domain, and may be an orthogonal frequency division multiplexing (OFDM) symbol or other time domain symbols, which is not limited in the embodiment of the present application.

[0131] That is, the first segmented TDW in the at least one segmented TDW in the embodiment of the present application may start from the first symbol of the first uplink channel in the target uplink channel.

[0132] Optionally, the first uplink channel is the first uplink channel among the N uplink channels determined according to the time domain resource allocation indication; or, the first uplink channel is the first valid uplink channel among the N uplink channels.

[0133] It should be understood that in some embodiments, the first uplink channel may be the first configured uplink channel among the N uplink channels. In other words, the starting position of the at least one segmented TDW may be the starting position (or first symbol) of the first configured uplink channel among the N uplink channels.

[0134] In other embodiments, an invalid uplink channel exists among the N uplink channels indicated by the time domain resource allocation. For example, the network device may indicate to the terminal device that a certain PUSCH is an invalid channel. In this case, the first uplink channel may be the first valid uplink channel among the N uplink channels determined by the time domain resource allocation indication. In other words, the starting position of the at least one segmented TDW may be the starting position (or the first symbol) of the first valid uplink channel among the N uplink channels.

[0135] Optionally, the end position of the last segmented TDW of the at least one segmented TDW is the end position of the Nth uplink channel among the N uplink channels. In other words, the end position of the last segmented TDW of the at least one segmented TDW is the end position of the last uplink channel among the N uplink channels.

[0136] Optionally, the end position of the Nth uplink channel may be the last symbol of the Nth uplink channel.

[0137] In some embodiments, when the transmission duration of the target uplink channel corresponds to at least two segmented TDWs, the starting position of the K+1th segmented TDW in the at least two segmented TDWs is the ending position of the Kth segmented TDW in the at least two segmented TDWs, where K is a positive integer.

[0138] It is understood that each of the at least two segmented TDWs can be connected end to end, with the end position of the previous segmented TDW being the starting position of the next segmented TDW. That is, in this embodiment, regardless of whether the end position of the previous segmented TDW is a channel gap (GAP) or the end position of an uplink channel among the N uplink channels, the starting position of the next segmented TDW is the end position of the previous segmented TDW.

[0139] For example, referring to FIG5 , assuming that the first segment length is 4 time slots, it can be determined based on the first segment length that the target uplink channel includes 3 segment TDWs. If the end position of segment TDW1 is the last symbol of GAP1, the start position of segment TDW2 can be the last symbol of GAP1. In addition, if the end position of segment TDW2 is the last symbol of PUSCH 7, the start position of segment TDW3 can be the last symbol of PUSCH 7.

[0140] In other embodiments, when the transmission duration of the target uplink channel corresponds to at least two segmented TDWs, the starting position of the K+1th segmented TDW among the at least two segmented TDWs is the starting position of the Mth uplink channel among the N uplink channels, K is a positive integer, and M is a positive integer.

[0141] It is understandable that, among the at least two segmented TDWs in the embodiments of the present application, except for the first segmented TDW, the starting position of each of the other segmented TDWs may be the starting position of a certain uplink channel among the N uplink channels. That is, in this embodiment, if there is a gap between the end position of the previous segmented TDW, the M-1th uplink channel, and the Mth uplink channel, then the starting position of the next segmented TDW may not be the end position of the previous segmented TDW, but may be the starting position of the Mth uplink channel among the N uplink channels. The M-1th uplink signal and the Mth uplink channel are two adjacent uplink channels among the aforementioned N uplink channels.

[0142] For example, referring to FIG6 , assuming that the first segment length is 4 time slots, segment TDW1 determined based on the first segment length can include at most 3 PUSCHs, so the end position of segment TDW1 is the last symbol of PUSCH 3. When there is a gap between PUSCH 3 and PUSCH 4, the start position of segment TDW2 can be the first symbol of PUSCH 4.

[0143] In some further embodiments, when the transmission duration of the target uplink channel corresponds to at least two segmented TDWs, the starting position of the K+1th segmented TDW among the at least two segmented TDWs is the starting position of the time unit where the Mth uplink channel among the N uplink channels is located, K is a positive integer, and M is a positive integer.

[0144] It should be understood that the starting position of the uplink channel can be a symbol in a time slot. Therefore, among the at least two segmented TDWs of this embodiment, except for the first segmented TDW, the starting position of each of the other segmented TDWs can be the starting position of the time unit where an uplink channel among the N uplink channels is located.

[0145] In some embodiments, the starting position of the first segmented TDW may also be the starting position of the time unit where the first uplink channel among the N uplink channels is located.

[0146] Among them, the time unit can be a time slot, half a time slot, multiple symbols, a subframe, etc., and the embodiments of the present application do not limit this.

[0147] In one embodiment of the present application, the transmission duration of the target uplink channel corresponds to at least one segmented TDW, and each segmented DTW in the at least one segmented TDW includes one or more actual TDWs;

[0148] The starting position of the first actual TDW in the first segmented TDW is the starting position of the first segmented TDW. If an event that destroys power consistency and phase continuity occurs, the ending position of the first actual TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or,

[0149] If no event that destroys power consistency and phase continuity occurs, the end position of the first actual TDW is the end position of the first segmented TDW;

[0150] The first segmented TDW is one segmented TDW among the at least one segmented TDW.

[0151] It should be understood that in order to implement joint channel estimation, embodiments of the present application may also introduce actual TDWs. It should be noted that the terminal device needs to maintain power consistency and phase consistency within each actual TDW. In this way, the network device can perform joint channel estimation based on each actual TDW to enhance the uplink coverage of the terminal device.

[0152] In this embodiment of the present application, each segmented TDW may include one or more actual TDWs. If no event that disrupts power consistency and phase continuity occurs in a segmented TDW, the segmented TDW may include only one actual TDW. The starting position of the actual TDW is the starting position of the current segmented TDW, and the ending position of the actual TDW is the ending position of the current segmented TDW.

[0153] In addition, if an event that destroys power consistency and phase continuity occurs in a segmented TDW, the segmented TDW will be divided into multiple actual TDWs, or the actual TDW in the segmented TDW will end prematurely.

[0154] Specifically, the starting position of the first actual TDW in each segmented TDW can be the same as the starting position of the current segmented TDW. If an event that destroys power consistency and phase continuity occurs in the current segmented TDW, the end position of the first TDW can be the last symbol of the uplink channel being transmitted when the event occurs.

[0155] When an event that destroys power consistency and phase continuity occurs, if the terminal device has the ability to restart DMRS binding, a new actual TDW will be created after the event ends (that is, the segmented TDW includes multiple actual TDWs). If the terminal device does not have the ability to restart DMRS binding, no new actual TDW will be created until the end of the segmented TDW. In other words, the segmented TDW only includes one actual TDW, and the end position of the TDW is the last symbol of the uplink channel being transmitted when the event that destroys power consistency and phase continuity occurs.

[0156] In another embodiment of the present application, the transmission duration of the target uplink channel corresponds to at least one segmented TDW;

[0157] Wherein, in the first segment TDW, if an event that destroys power consistency and phase continuity occurs, the end position of the first segment TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or,

[0158] If no event that destroys power consistency and phase continuity occurs, the end position of the first segment TDW is determined according to the first segment length;

[0159] The first segmented TDW is one segmented TDW among the at least one segmented TDW.

[0160] Optionally, when an event that destroys power consistency and phase continuity occurs, the terminal device creates a new segmented TDW after the event ends. Optionally, whether the terminal device creates a new segmented TDW is determined by the terminal device's ability to adjust the minimum time interval and / or maximum time interval for time domain synchronization and / or frequency domain synchronization.

[0161] It should be noted that the at least one segmented TDW in the embodiment of the present application can be determined by the terminal device based on the first segment length and the target uplink channel. Among them, the starting position of the first segment TDW in the at least one segmented TDW can be determined by the method described in the above embodiment, and the relationship between the various segmented TDWs in the at least one segmented TDW can also be determined by the method described in the above embodiment, which will not be repeated here. In addition, except for the last segment TDW in the at least one segmented TDW, the lengths of other TDWs can be determined according to the first segment length. For example, except for the last segment TDW in the at least one segmented TDW, the lengths of other TDWs are all the first segment length.

[0162] Exemplarily, as shown in reference figure 7, the target uplink channel may include 10 repeated PUSCH transmissions, and the target uplink channel corresponds to 3 segmented TDWs: segmented TDW1, segmented TDW2 and segmented TDW3. Among them, event 1 that destroys power consistency and phase continuity occurs during the transmission of PUSCH 2 of segmented TDW1, then the first actual TDW in segmented TDW1 may end at the last symbol of PUSCH2. If the current terminal device has the ability to restart DMRS binding, the terminal device will create a new actual TDW after the end of PUSCH 2. The starting position of the new actual TDW is the first symbol of PUSCH 3. Before the end of segmented TDW1, no event that destroys power consistency and phase continuity occurs. Therefore, the end position of the new actual TDW is the end position of segmented TDW1, that is, the last symbol of PUSCH 4.

[0163] In addition, if event 2 that destroys power consistency and phase continuity occurs during the transmission of PUSCH 7 in segment TDW2, the first actual TDW in segment TDW2 may end at the last symbol of PUSCH 7. The terminal device may create a new actual TDW after the end of PUSCH 7, and the starting position of the new actual TDW is the first symbol of PUSCH 8. Before the end of segment TDW2, no event that destroys power consistency and phase continuity occurs. Therefore, the end position of the new actual TDW is the end position of segment TDW2, that is, the last symbol of PUSCH 8.

[0164] In the PUSCH transmission duration shown in FIG7 , the same filling pattern indicates the same power consistency and phase continuity.

[0165] Optionally, the event that destroys power consistency and phase continuity includes at least one of the following:

[0166] In TDD spectrum, downlink timeslots determined based on a semi-static downlink / uplink configuration pattern, either downlink reception or downlink monitoring;

[0167] For normal CP, the interval between two consecutive uplink channel transmissions is greater than 13 symbols; for extended CP, the interval between two consecutive uplink channel transmissions is greater than 11 symbols;

[0168] When the interval between two consecutive uplink channel transmissions is not greater than 13 symbols, the terminal device is scheduled for uplink transmission other than the target uplink channel in the interval;

[0169] Based on the collision rules defined by the protocol, one or more uplink channel transmissions in the target uplink channel are discarded or cancelled;

[0170] When the target uplink channel is a PUSCH, two consecutive uplink channel transmissions are associated with different uplink beams;

[0171] When the target uplink channel is a PUCCH, two consecutive uplink channel transmissions are associated with different uplink beams or different power control parameters;

[0172] Performing TA adjustment based on a timing advance command TAC received by the terminal device;

[0173] Frequency hopping processing in the frequency domain;

[0174] When the terminal device is a half-duplex FDD compact terminal and the target uplink channel is PUSCH, the uplink channel transmission is discarded or cancelled based on the discard rule defined by the protocol, or there are symbols overlapping with downlink reception or downlink monitoring between two consecutive uplink channel transmissions.

[0175] It can be seen that in the transmission method provided by the embodiment of the present application, the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment for each segmented TDW before sending the target uplink channel through each segmented TDW, to ensure synchronization between the terminal device and the network device during the transmission of the target uplink channel. At the same time, the terminal device maintains power consistency and phase continuity within the actual TDW in each segmented TDW. In this way, the network device can perform joint channel estimation based on DMRS binding according to the actual TDW in each segmented TDW, thereby improving the channel estimation gain of the terminal device.

[0176] In one embodiment of the present application, the target uplink channel transmission duration corresponds to at least one nominal TDW; each nominal TDW in the at least one nominal TDW includes one or more segmented TDWs;

[0177] The starting position of the first segmented TDW in the first nominal TDW is the starting position of the first nominal TDW; and the first nominal TDW is one of the at least one nominal TDW.

[0178] It should be understood that in order to be compatible with the coverage enhancement technology of joint channel estimation based on DMRS bundling in the related art, the embodiment of the present application can also introduce nominal TDW and actual TDW at the same time, and combine them with the segmented TDW in the above embodiment.

[0179] Here, the continuous transmission time of the target uplink channel can correspond to at least one nominal TDW. Except for the last nominal TDW in the at least one nominal TDW, the lengths of other nominal TDWs can be configured by the network device or predefined or calculated according to predefined rules. The embodiment of the present application does not limit this.

[0180] Optionally, the length of the nominal TDW is determined according to the first segment length. For example, the length of the nominal TDW is less than or equal to the first segment length.

[0181] Optionally, the length of the nominal TDW is determined based on the first segment length and a maximum duration during which the terminal device can maintain power consistency and phase continuity. For example, the length of the nominal TDW is less than or equal to the smaller value between the first segment length and the maximum duration.

[0182] In this embodiment of the present application, the terminal device can determine a segmented TDW based on the first segment length and the nominal TDW. Specifically, each nominal TDW may include one or more segmented TDWs. The starting position of the first segmented TDW in each nominal TDW is the starting position of the current nominal TDW. Furthermore, the ending position of the last segmented TDW in each nominal TDW may be the ending position of the current nominal TDW.

[0183] In some embodiments, except for the first segment TDW and the last segment TDW in the first nominal TDW, the lengths of other segment TDWs are determined according to the first segment length.

[0184] Optionally, the length of the first segmented TDW in the first nominal TDW is determined according to the first segment length, or the length of the first segmented TDW in the first nominal TDW is determined according to the length of the last segmented TDW in the previous nominal TDW of the first nominal TDW and the first segment length.

[0185] It should be understood that when the length of the nominal TDW configured or predefined by the network device is equal to the first segment length, each nominal TDW includes only one segment TDW, and except for the last segment TDW (nominal TDW) in at least one segment TDW (nominal TDW) corresponding to the target uplink channel, the lengths of the other segment TDWs (nominal TDWs) are determined according to the first segment length. For example, the lengths of the other TDWs can be the first segment length.

[0186] In addition, when the length of a nominal TDW configured or predefined by the network device is greater than the first segment length, each nominal TDW may include multiple segment TDWs. Except for the last segment TDW, the lengths of the multiple segment TDWs included in each nominal TDW may be determined based on the first segment length. For example, the lengths of the other segment TDWs may be the first segment length.

[0187] For example, as shown in Figure 8 , the target uplink channel includes 10 PUSCH retransmissions, each of which occupies one time slot. Assuming the network device is configured with a nominal TDW length of 4 time slots and a first segment length of 3 time slots, the 10 PUSCH retransmissions of the target uplink channel correspond to 3 nominal TDWs, where nominal TDW1 and nominal TDW2 are 4 time slots long, and nominal TDW3 is 2 time slots long.

[0188] In addition, based on the first segment length, nominal TDW1 and nominal TDW2 can each include two segmented TDWs. The first segmented TDW in nominal TDW1 (i.e., segment TDW1) is three time slots long, and the second segmented TDW in nominal TDW1 (i.e., segment TDW2) is one time slot long. Furthermore, the first segmented TDW in nominal TDW2 (i.e., segment TDW3) is three time slots long, and the second segmented TDW in nominal TDW2 (i.e., segment TDW4) is one time slot long. As the final nominal TDW, nominal TDW3 is two time slots long and includes only one segmented TDW (i.e., segment TDW5).

[0189] Alternatively, when the length of the nominal TDW configured or predefined by the network device is greater than the first segment length, the length of the first segment TDW in each nominal TDW can be determined based on the length of the last segment TDW in the nominal TDW preceding the current nominal TDW and the first segment length. In this scenario, using Figure 8 as an example, segment TDW1 corresponds to PUSCH1, PUSCH2, and PUSCH3; segment TDW2 corresponds to PUSCH4, PUSCH5, and PUSCH6; segment TDW3 corresponds to PUSCH7, PUSCH8, and PUSCH9; and segment TDW4 corresponds to PUSCH10.

[0190] When the length of the nominal TDW configured or predefined by the network device is less than the first segment length, some segment TDWs in at least one segment TDW corresponding to the target uplink channel may be truncated by some nominal TDWs. For example, referring to FIG9 , the length of the nominal TDW is 3 PUSCH transmission durations, and the first segment length is 4 PUSCH transmission durations. 10 PUSCH repetitions of the target uplink channel can correspond to 3 segment TDWs. Among them, segment TDW1 is truncated by nominal TDW1, segment TDW2 is truncated by nominal TDW2, and segment TDW3 is truncated by nominal TDW3.

[0191] Alternatively, in this scenario, the length of the first segmented TDW in each nominal TDW may be determined according to the length of the last segmented TDW in the previous nominal TDW of the current nominal TDW and the first segment length.

[0192] Optionally, in each nominal TDW, except for the first and last segmented TDWs, the lengths of the other segmented TDWs are determined according to the first segment length. The length of the first segmented TDW in each nominal TDW may be the first segment length minus the length of the last segmented TDW in the previous nominal TDW.

[0193] As shown in Figure 9, segment TDW2 includes the transmission duration of PUSCH5 and PUSCH 6 in the nominal TDW2 and the transmission duration of PUSCH7 and PUSCH 8 in the nominal TDW3, that is, the first segment TDW in the nominal TDW3 is the first segment length minus the transmission duration of the two PUSCHs included in the nominal TDW2.

[0194] Optionally, in an embodiment of the present application, the segmented TDW is determined based on the first segment length, and the terminal device performs time domain synchronization and / or frequency domain synchronization adjustment for each segmented TDW. Alternatively, the segmented TDW and nominal TDW are determined independently. Regardless of whether the nominal TDW length is greater than or less than the first segment length, the terminal device must perform time domain synchronization adjustment and / or frequency domain synchronization adjustment based on the segmented TDW determined based on the first segment length.

[0195] Optionally, in an embodiment of the present application, the terminal device needs to perform time domain synchronization adjustment and / or frequency domain synchronization adjustment on each segmented TDW. Time domain synchronization adjustment and / or frequency domain synchronization adjustment may also be performed on each nominal TDW. In other words, before transmitting the target uplink channel through each nominal TDW, time domain synchronization and / or frequency domain synchronization adjustment is performed on each nominal TDW.

[0196] In the embodiment of the present application, the transmission duration of the target uplink channel corresponds to at least one nominal TDW, and each nominal TDW in the at least one nominal TDW may include one or more actual TDWs;

[0197] The starting position of the first actual TDW in the first nominal TDW is the starting position of the first nominal TDW. If an event that destroys power consistency and phase continuity occurs, the ending position of the first actual TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or,

[0198] If no event that destroys power consistency and phase continuity occurs, the end position of the first actual TDW is the end position of the first nominal TDW;

[0199] The first nominal TDW is one of the at least one nominal TDW.

[0200] It should be understood that each of the at least one nominal TDW may include one or more actual TDWs. The terminal device may need to maintain power consistency and phase consistency within each actual TDW, and the network device may perform joint channel estimation based on each actual TDW to enhance the uplink coverage of the terminal device.

[0201] Specifically, if no events that disrupt power consistency and phase continuity occur in a nominal TDW, the nominal TDW includes only one actual TDW. The starting position of the actual TDW is the starting position of the current nominal TDW, and the ending position of the actual TDW is the ending position of the current nominal TDW.

[0202] If an event that destroys power consistency and phase continuity occurs in a nominal TDW, the nominal TDW will be divided into multiple actual TDWs, or the actual TDW in the nominal TDW will be terminated early.

[0203] Specifically, the starting position of the first actual TDW in a nominal TDW can be the same as the starting position of the current nominal TDW. If an event that disrupts power consistency and phase continuity occurs in the current nominal TDW, the end position of the first TDW can be the last symbol of the uplink channel being transmitted when the event occurs.

[0204] When an event that disrupts power consistency and phase continuity occurs, if the terminal device has the ability to restart DMRS binding, a new actual TDW is created after the event ends. If the terminal device does not have the ability to restart DMRS binding, a new actual TDW will not be created until the nominal TDW ends.

[0205] In some embodiments, the event that disrupts power consistency and phase continuity includes at least one of the following:

[0206] In TDD spectrum, downlink timeslots determined based on a semi-static downlink / uplink configuration pattern, either downlink reception or downlink monitoring;

[0207] For normal CP, the interval between two consecutive uplink channel transmissions is greater than 13 symbols; for extended CP, the interval between two consecutive uplink channel transmissions is greater than 11 symbols;

[0208] When the interval between two consecutive uplink channel transmissions is not greater than 13 symbols, the terminal device is scheduled for uplink transmission other than the target uplink channel in the interval;

[0209] Based on the collision rules defined by the protocol, one or more uplink channel transmissions in the target uplink channel are discarded or cancelled;

[0210] When the target uplink channel is a PUSCH, two consecutive uplink channel transmissions are associated with different uplink beams;

[0211] When the target uplink channel is a PUCCH, two consecutive uplink channel transmissions are associated with different uplink beams or different power control parameters;

[0212] Performing TA adjustment based on a timing advance command TAC received by the terminal device;

[0213] Frequency hopping processing in the frequency domain;

[0214] When the terminal device is a half-duplex FDD compact terminal and the target uplink channel is PUSCH, the uplink channel transmission is discarded or cancelled based on the discard rule defined by the protocol, or there are symbols overlapping with downlink reception or downlink monitoring between two consecutive uplink channel transmissions.

[0215] In other embodiments, an event that disrupts power consistency and phase continuity may also include: an uplink channel transmitted via the first nominal TDW being interrupted by any segmented TDW. That is, during target uplink channel transmission, if an uplink channel transmitted via any nominal TDW is interrupted by a segmented TDW, the actual TDW in the current nominal TDW ends.

[0216] For example, referring to Case 1 in Figure 10 , the nominal TDW1 includes two segmented TDWs: segmented TDW1 and segmented TDW2. When segmented TDW1 ends at the last symbol of PUSCH 3, the first actual TDW (actual TDW1) in the nominal TDW1 also ends at the last symbol of PUSCH 3. Furthermore, assuming that the terminal device has the ability to restart DMRS bundling, the terminal device establishes a new actual TDW (actual TDW2) after the end of PUSCH 3, and the end position of the actual TDW2 is the end position of the nominal TDW1.

[0217] In addition, the nominal TDW2 also includes two segmented TDWs: segmented TDW3 and segmented TDW4. If an event that destroys power consistency and phase continuity occurs when transmitting PUSCH 5, the end position of the first actual TDW (actual TDW3) in the nominal TDW2 is the last symbol of PUSCH 5 transmitted when the event occurs. The terminal device can establish the second actual TDW (i.e., actual TDW4) of the nominal TDW2 after the end of PUSCH 5. Furthermore, if the PUSCH 7 transmitted through the nominal TDW2 is interrupted by segmented TDW3, the end position of the second actual TDW (i.e., actual TDW4) in the nominal TDW2 is the last symbol of PUSCH 7. Then, the terminal device can also establish a third actual TDW (i.e., actual TDW5) for the nominal TDW2. If no event that destroys power consistency and phase continuity occurs before the end of the nominal TDW2, the end position of the actual TDW5 is the end position of the nominal TDW2.

[0218] Optionally, in this case 1, before sending the target PUSCH, the terminal device performs time domain synchronization and / or frequency domain synchronization adjustment for each segment TDW in segment TDW1, segment TDW2, segment TDW3, segment TDW4 and segment TDW5.

[0219] For example, referring to Case 2 in Figure 10 , the nominal TDW1 also includes two segmented TDWs: segmented TDW1 and segmented TDW2. When segmented TDW1 ends at the last symbol of PUSCH 3, the first actual TDW (actual TDW1) in the nominal TDW1 also ends at the last symbol of PUSCH 3. Furthermore, assuming that the terminal device has the ability to restart DMRS bundling, the terminal device establishes a new actual TDW (actual TDW2) after the end of PUSCH 3, and the end position of the actual TDW2 is the end position of the nominal TDW1.

[0220] In addition, segmented TDW2 is interrupted by nominal TDW2. In nominal TDW2, if an event that destroys power consistency and phase continuity occurs when transmitting PUSCH 5, the end position of the first actual TDW (actual TDW3) in nominal TDW2 is the last symbol of PUSCH 5 transmitted when the event occurs. The terminal device can establish a second actual TDW (i.e., actual TDW4) of nominal TDW2 after PUSCH 5 ends. Furthermore, if PUSCH 6 transmitted through nominal TDW2 is interrupted by segmented TDW2, the end position of the second actual TDW (i.e., actual TDW4) in nominal TDW2 is the last symbol of PUSCH 6. Then, the terminal device can also establish a third actual TDW (i.e., actual TDW5) for nominal TDW2 based on segmented TDW3. If no event that destroys power consistency and phase continuity occurs before the end of nominal TDW2, the end position of the actual TDW5 is the end position of nominal TDW2.

[0221] In addition, in the nominal TDW3, the PUSCH transmission is interrupted by the segmented TDW3, so the nominal TDW3 includes two actual TDWs (ie, actual TDW6 and actual TDW7).

[0222] Optionally, in this case 2, before sending the target PUSCH, the terminal device performs time domain synchronization and / or frequency domain synchronization adjustment for each segment TDW in segment TDW1, segment TDW2, segment TDW3 and segment TDW4.

[0223] It should be noted that the terminal device maintains power consistency and phase continuity in each actual TDW. In the PUSCH transmission durations shown in Case 1 and Case 2 of Figure 10, the same filling pattern represents the same power consistency and phase continuity.

[0224] Optionally, when the target uplink channel is interrupted by segmented TDW, the terminal device must support restarting DMRS binding.

[0225] Optionally, when the target uplink channel is interrupted by segmented TDW, whether the terminal device supports restarting DMRS binding is an optional capability.

[0226] It can be seen that in the transmission method provided by the embodiment of the present application, the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment for each segmented TDW before sending the target uplink channel through each segmented TDW, to ensure synchronization between the terminal device and the network device during the transmission of the target uplink channel. At the same time, the terminal device maintains power consistency and phase continuity within the actual TDW in each segmented TDW. In this way, the network device can perform joint channel estimation based on DMRS binding according to the actual TDW in each segmented TDW, thereby improving the channel estimation gain of the terminal device.

[0227] In one embodiment of the present application, the terminal device may prohibit time domain synchronization and / or frequency domain synchronization adjustment based on at least one of the terminal device's position, public timing parameters, and serving satellite ephemeris information within each segmented TDW; and / or,

[0228] The terminal device is prohibited from performing TA adjustment based on a received Timing Advance Command (TAC) within each of the segmented TDWs.

[0229] It is understandable that during the transmission of the target uplink channel, the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment for each segmented TDW. However, in the embodiment of the present application, for each segmented TDW after time domain synchronization and / or frequency domain synchronization, the terminal device can prohibit time domain / frequency domain adjustment within its segmented TDW. In this way, the network device can use the information received in each segmented TDW to perform joint channel estimation to ensure the gain of the joint channel estimation based on DMRS binding.

[0230] Optionally, prohibiting the terminal device from performing time domain / frequency domain adjustments within each segmented TDW may include: prohibiting the terminal device from performing time domain synchronization and / or frequency domain synchronization adjustments based on at least one of the terminal device's position, public timing parameters and service satellite ephemeris information within each segmented TDW; and / or prohibiting the terminal device from performing TA adjustments based on received timing advance commands within each segmented TDW.

[0231] Optionally, the common timing parameters and the service satellite ephemeris information may be configured at a higher level, for example, by a network device through a system message.

[0232] Correspondingly, after the network device determines multiple segmented TDWs of the target uplink channel based on the first segment length, it can determine that the terminal device has not performed time domain synchronization and / or frequency domain synchronization adjustment based on the terminal device's position, public timing parameters and at least one of the service satellite ephemeris information in each segmented TDW; and / or determine that the terminal device has not performed TA adjustment based on the received timing advance command TAC in each of the segmented TDW.

[0233] That is to say, the network device can also determine multiple segmented TDWs based on the first segment length, and determine the exact timing for the terminal device to perform time domain synchronization and / or frequency domain synchronization based on the multiple segmented TDWs, and then the network device can perform joint channel estimation based on DMRS binding based on the information received from the multiple segmented TDWs.

[0234] It can be seen that in the uplink transmission method provided in the embodiment of the present application, the network device and the terminal device determine the timing for the terminal device to perform time domain synchronization and / or frequency domain synchronization based on the length of the first segment, thereby realizing the coverage enhancement technology based on DMRS binding joint channel estimation in the NTN system, thereby achieving the purpose of enhancing the coverage of the terminal device.

[0235] It should be understood that in some embodiments, the terminal device may prohibit the execution of the TAC sent by the network device within each segmented TDW. For example, when the terminal device receives a TAC and determines that the TA adjustment corresponding to the TAC should be applied starting from the uplink channel transmission within a certain segmented TDW, the terminal device cannot perform the corresponding TA adjustment within the segmented TDW. In other embodiments, when the terminal device receives a TAC indicating that a TA adjustment is to be performed within a segmented TDW, it may also respond to the TAC. For example, when the terminal device receives a TAC and determines that the TA adjustment corresponding to the TAC should be applied starting from the uplink channel transmission within a certain segmented TDW, the terminal device may perform the corresponding TA adjustment.

[0236] In a possible implementation, when the terminal device is instructed to perform TA adjustment based on the received TAC within a first segmented TDW, the terminal device may determine to perform the TAC within the first segmented TDW;

[0237] The first segmented TDW is any one of the multiple segmented TDWs.

[0238] That is to say, in the process of sending the target uplink channel through multiple segmented TDWs, when the terminal device receives a TAC and the TAC requires the terminal device to perform TA adjustment within a certain segmented time domain window, the terminal device can execute the TAC sent by the network device within the segmented TDW to perform TA adjustment.

[0239] For example, referring to Figure 11, if the terminal device receives a TAC, according to the TAC application time, the TAC indicates that TA adjustment should start at a certain PUSCH within segment TDW3, then the terminal device can perform TAC on the first symbol of the PUSCH in segment TDW3, for example, perform TA adjustment on the first symbol of PUSCH6 shown in Figure 11, so that PUSCH5 and PUSCH6 can no longer maintain power consistency and / or phase continuity.

[0240] It can be seen that in the uplink transmission method provided by the implementation of this application, the terminal device can flexibly adjust the TA according to the instructions of the network device.

[0241] In another possible implementation, when the terminal device is instructed to perform TA adjustment based on the received TAC within the first segmented TDW, the terminal device determines to perform TA adjustment based on the TAC before sending the target uplink channel through the second segmented TDW;

[0242] The first segmented TDW is one of the multiple segmented TDWs; the second segmented TDW is a segmented TDW located after the first segmented TDW and adjacent to the first segmented TDW.

[0243] That is to say, in the process of sending the target uplink channel in the above-mentioned multiple segmented TDWs, when the terminal device receives a TA command sent by the network device and is required to perform TA adjustment within a certain segmented TDW, the terminal device can execute the TAC starting from the next segmented TDW of the current segmented TDW.

[0244] For example, as shown in Figure 12, when a terminal device receives a TAC indicating that it should perform TA adjustment within segment TDW3 based on the TAC application time, the terminal device can perform TA adjustment after the end of segment TDW3 and before transmitting the target uplink channel via segment TDW4. As can be seen from Figure 12, the actual TAC execution time is before transmitting PUSCH 7.

[0245] Correspondingly, the network device sends a timing advance command TAC to the terminal device. If the terminal device should perform TA adjustment based on the TAC indication within the first segment TDW, the network device determines that the terminal device performs TA adjustment based on the TAC before sending the target uplink channel through the second segment TDW;

[0246] The first segmented TDW is one of the multiple segmented TDWs; the second segmented TDW is a segmented TDW that follows the first segmented TDW and is adjacent to the first segmented TDW.

[0247] That is, when a network device sends a TAC to a terminal device, instructing the terminal device to adjust its TA within a specific TDW, the network device and the terminal device agree not to execute the TAC within the specified TDW, but rather within the TDW following the specified TDW. This allows the terminal device to respond to the TAC while maintaining the TA within the specified TDW, power consistency, and phase continuity. This improves the terminal device's flexibility in information processing.

[0248] In some embodiments, before step 410, the terminal device may further perform the following steps:

[0249] The terminal device sends capability information to the network device; the capability information includes first capability information and / or second capability information;

[0250] The first capability information is used to indicate the minimum time interval at which the terminal device can perform time domain synchronization and / or frequency domain synchronization; and / or the maximum time interval at which the terminal device can perform time domain synchronization and / or frequency domain synchronization;

[0251] The second capability information is used to indicate the maximum duration that the terminal device can maintain power consistency and phase continuity.

[0252] Optionally, the minimum time interval at which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment includes: the minimum time interval at which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment based on at least one of the terminal device's position, public timing parameters and service satellite ephemeris information.

[0253] Optionally, the maximum time interval for which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment includes: the maximum time interval for which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment based on at least one of the terminal device's position, public timing parameters and service satellite ephemeris information.

[0254] It should be noted that the first capability information may indicate, in an explicit or implicit manner, the minimum time interval for which the terminal device can perform time domain synchronization and / or frequency domain synchronization; and / or the maximum time interval for which the terminal device can perform time domain synchronization and / or frequency domain synchronization, and the second capability information may also indicate, in an explicit or implicit manner, the maximum duration for which the terminal device can maintain power consistency and phase continuity. The embodiments of the present application do not limit the manner of indication.

[0255] Optionally, the first segment length may be determined based on the first capability information and / or the second capability information. Exemplarily, the first segment length is calculated by the terminal device based on the first capability information and / or the second capability information, or the first segment length is configured by the network device for the terminal device based on the first capability information and / or the second capability information. This embodiment of the present application is not limited to this.

[0256] In the uplink transmission method provided in the embodiments of the present application, the terminal device and / or network device can determine the first segment length for dividing the segmented TDW based on the actual capabilities of the terminal device. In this way, the segmented TDW determined based on the first segment length can adapt to the actual capabilities of the terminal device, ensuring that the terminal device and the network device remain synchronized at all times during transmission on the target uplink channel. This also avoids low channel estimation gain caused by frequent synchronization adjustments in the time and / or frequency domains by the terminal device.

[0257] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will no longer describe the various possible combinations separately. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the idea of ​​the present application, they should also be regarded as the contents disclosed in the present application. For another example, under the premise of no conflict, the various embodiments and / or the technical features in each embodiment described in the present application can be arbitrarily combined with the prior art, and the technical solution obtained after the combination should also fall within the scope of protection of the present application.

[0258] It should also be understood that in the various method embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply a precedence in the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, in the embodiments of the present application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data, where "downlink" is used to indicate the first direction of transmission of signals or data from a site to a user equipment in a cell, "uplink" is used to indicate the second direction of transmission of signals or data from a user equipment in a cell to a site, and "sidelink" is used to indicate the third direction of transmission of signals or data from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiments of the present application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships can exist. Specifically, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0259] FIG13 is a schematic diagram of the structure of an uplink transmission device provided in an embodiment of the present application, which is applied to a terminal device. As shown in FIG13 , the uplink transmission device includes:

[0260] A first determining unit 1301 is configured to determine a segmented time domain window TDW corresponding to a target uplink channel according to a first segment length, wherein the target uplink channel includes N uplink channels, the segmented TDW is associated with a time interval for adjusting time domain synchronization and / or frequency domain synchronization of the terminal device, and N is a positive integer;

[0261] The first sending unit 1302 is configured to send the target uplink channel according to the segmented TDW.

[0262] Optionally, the transmission duration of the target uplink channel corresponds to at least one segmented TDW, and the first sending unit 1302 is further configured to perform time domain synchronization and / or frequency domain synchronization adjustment for each segmented TDW before sending the target uplink channel through each segmented TDW in the at least one segmented TDW.

[0263] Optionally, the transmission duration of the target uplink channel corresponds to at least one segmented TDW, and a starting position of a first segmented TDW in the at least one segmented TDW is a starting position of a first uplink channel in the N uplink channels.

[0264] Optionally, the starting position of the first uplink channel is the first symbol of the first uplink channel.

[0265] The first uplink channel is the first uplink channel among the N uplink channels determined according to the time domain resource allocation indication; or

[0266] The first uplink channel is the first valid uplink channel among the N uplink channels.

[0267] Optionally, the transmission duration of the target uplink channel corresponds to at least two segmented TDWs, the starting position of the K+1th segmented TDW in the at least two segmented TDWs is the ending position of the Kth segmented TDW in the at least two segmented TDWs, and K is a positive integer.

[0268] Optionally, the transmission duration of the target uplink channel corresponds to at least two segmented TDWs, and the starting position of the K+1th segmented TDW in the at least two segmented TDWs is the starting position of the Mth uplink channel in the N uplink channels, or,

[0269] The starting position of the K+1th segmented TDW in the at least two segmented TDWs is the starting position of the time unit where the Mth uplink channel in the N uplink channels is located, K is a positive integer, and M is a positive integer.

[0270] Optionally, the transmission duration of the target uplink channel corresponds to at least one segmented TDW, and each segmented DTW in the at least one segmented TDW includes one or more actual TDWs;

[0271] The starting position of the first actual TDW in the first segmented TDW is the starting position of the first segmented TDW. If an event that destroys power consistency and phase continuity occurs, the ending position of the first actual TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or,

[0272] If no event that destroys power consistency and phase continuity occurs, the end position of the first actual TDW is the end position of the first segmented TDW;

[0273] The first segmented TDW is one segmented TDW among the at least one segmented TDW.

[0274] Optionally, the transmission duration of the target uplink channel corresponds to at least one nominal TDW; each nominal TDW in the at least one nominal TDW includes one or more segmented TDWs;

[0275] The starting position of the first segmented TDW in the first nominal TDW is the starting position of the first nominal TDW; and the first nominal TDW is one of the at least one nominal TDW.

[0276] Optionally, except for the first segment TDW and the last segment TDW in the first nominal TDW, the lengths of other segment TDWs are determined according to the first segment length.

[0277] Optionally, the length of the first segment TDW in the first nominal TDW is determined according to the first segment length; or,

[0278] The length of a first segmented TDW in the first nominal TDW is determined according to the length of a last segmented TDW in a nominal TDW preceding the first nominal TDW and the first segment length.

[0279] Optionally, the transmission duration of the target uplink channel corresponds to at least one nominal TDW; each of the at least one nominal TDW includes one or more actual TDWs;

[0280] The starting position of the first actual TDW in the first nominal TDW is the starting position of the first nominal TDW. If an event that destroys power consistency and phase continuity occurs, the ending position of the first actual TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or,

[0281] If no event that destroys power consistency and phase continuity occurs, the end position of the first actual TDW is the end position of the first nominal TDW;

[0282] The first nominal TDW is one of the at least one nominal TDW.

[0283] Optionally, the event that destroys power consistency and phase continuity includes: an uplink channel transmitted through the first nominal TDW is interrupted by any of the segmented TDWs.

[0284] Optionally, the terminal device prohibits time domain synchronization and / or frequency domain synchronization adjustment based on at least one of the terminal device's position, public timing parameters, and service satellite ephemeris information within each segmented TDW; and / or,

[0285] The terminal device prohibits TA adjustment based on the received timing advance command TAC within each of the segmented TDWs.

[0286] Optionally, when the terminal device is instructed to perform TA adjustment based on a received timing advance command TAC within a first segment TDW, the terminal device determines to perform TA adjustment based on the TAC before sending the target uplink channel through a second segment TDW;

[0287] The first segmented TDW is one of the multiple segmented TDWs; the second segmented TDW is a segmented TDW located after the first segmented TDW and adjacent to the first segmented TDW.

[0288] Optionally, the event that destroys power consistency and phase continuity includes at least one of the following:

[0289] In TDD spectrum, downlink timeslots determined based on a semi-static downlink / uplink configuration pattern, either downlink reception or downlink monitoring;

[0290] For normal CP, the interval between two consecutive uplink channel transmissions is greater than 13 symbols; for extended CP, the interval between two consecutive uplink channel transmissions is greater than 11 symbols;

[0291] When the interval between two consecutive uplink channel transmissions is not greater than 13 symbols, the terminal device is scheduled for uplink transmission other than the target uplink channel in the interval;

[0292] Based on the collision rules defined by the protocol, one or more uplink channel transmissions in the target uplink channel are discarded or cancelled;

[0293] When the target uplink channel is a PUSCH, two consecutive uplink channel transmissions are associated with different uplink beams;

[0294] When the target uplink channel is a PUCCH, two consecutive uplink channel transmissions are associated with different uplink beams or different power control parameters;

[0295] Performing TA adjustment based on a timing advance command TAC received by the terminal device;

[0296] Frequency hopping processing in the frequency domain;

[0297] When the terminal device is a half-duplex FDD compact terminal and the target uplink channel is PUSCH, the uplink channel transmission is discarded or cancelled based on the discard rule defined by the protocol, or there are symbols overlapping with downlink reception or downlink monitoring between two consecutive uplink channel transmissions.

[0298] Optionally, the first segment length is predefined, or is determined according to a predefined rule, or is determined according to first configuration information sent by the network device, or is determined according to a segment length set configured by the network device.

[0299] Optionally, the first configuration information is carried by at least one of the following information:

[0300] Radio resource control RRC signaling, system messages, media access control element MAC CE, and downlink control information DCI.

[0301] Optionally, when the terminal device is in a connected state, the first configuration information is carried by terminal device-specific RRC signaling; and / or,

[0302] When the terminal device is in an idle state or an inactive state, the first configuration information is carried through a system message.

[0303] Optionally, the first sending unit 1302 is further configured to send capability information; the capability information includes first capability information and / or second capability information;

[0304] The first capability information is used to indicate the minimum time interval for which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment; and / or the maximum time interval for which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment;

[0305] The second capability information is used to indicate the maximum duration that the terminal device can maintain power consistency and phase continuity.

[0306] Optionally, the target uplink channel includes at least one of the following: a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and a physical random access channel PRACH.

[0307] FIG14 is a second schematic diagram of the structure of an uplink transmission device provided in an embodiment of the present application, which is applied to a network device. As shown in FIG14 , the uplink transmission device includes:

[0308] The second receiving unit 1401 is configured to receive a target uplink channel; the target uplink channel includes N uplink channels, and the target uplink channel is transmitted in multiple segmented time domain windows TDW, and the multiple segmented TDWs are determined according to the first segment length. The segmented TDW is associated with the time interval for the terminal device to perform time domain synchronization and / or frequency domain synchronization adjustment, and N is a positive integer.

[0309] Optionally, the uplink transmission device also includes a second determination unit, the transmission duration of the target uplink channel corresponds to at least one segmented TDW, and the second determination unit is configured to determine that before the terminal device sends the target uplink channel through each segmented TDW in the at least one segmented TDW, it performs time domain synchronization and / or frequency domain synchronization adjustment for each segmented TDW.

[0310] Optionally, the transmission duration of the target uplink channel corresponds to at least one segmented TDW, and a starting position of a first segmented TDW in the at least one segmented TDW is a starting position of a first uplink channel in the N uplink channels.

[0311] Optionally, the starting position of the first uplink channel is the first symbol of the first uplink channel.

[0312] The first uplink channel is the first uplink channel among the N uplink channels determined according to the time domain resource allocation indication; or

[0313] The first uplink channel is the first valid uplink channel among the N uplink channels.

[0314] Optionally, the transmission duration of the target uplink channel corresponds to at least two segmented TDWs, the starting position of the K+1th segmented TDW in the at least two segmented TDWs is the ending position of the Kth segmented TDW in the at least two segmented TDWs, and K is a positive integer.

[0315] Optionally, the transmission duration of the target uplink channel corresponds to at least two segmented TDWs, and the starting position of the K+1th segmented TDW in the at least two segmented TDWs is the starting position of the Mth uplink channel in the N uplink channels, or,

[0316] The starting position of the K+1th segmented TDW in the at least two segmented TDWs is the starting position of the time unit where the Mth uplink channel in the N uplink channels is located, K is a positive integer, and M is a positive integer.

[0317] Optionally, the transmission duration of the target uplink channel corresponds to at least one segmented TDW, and each segmented DTW in the at least one segmented TDW includes one or more actual TDWs;

[0318] The starting position of the first actual TDW in the first segmented TDW is the starting position of the first segmented TDW. If an event that destroys power consistency and phase continuity occurs, the ending position of the first actual TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or,

[0319] If no event that destroys power consistency and phase continuity occurs, the end position of the first actual TDW is the end position of the first segmented TDW; the first segmented TDW is one segmented TDW in the at least one segmented TDW.

[0320] Optionally, the continuous transmission time of the target uplink channel corresponds to at least one nominal TDW; each nominal TDW in the at least one nominal TDW includes one or more segmented TDWs;

[0321] The starting position of the first segmented TDW in the first nominal TDW is the starting position of the first nominal TDW, and the first nominal TDW is one of the at least one nominal TDW.

[0322] Optionally, except for the first segment TDW and the last segment TDW in the first nominal TDW, the lengths of other segment TDWs are determined according to the first segment length.

[0323] Optionally, the length of the first segment TDW in the first nominal TDW is determined according to the first segment length; or,

[0324] The length of a first segmented TDW in the first nominal TDW is determined according to the length of a last segmented TDW in a nominal TDW preceding the first nominal TDW and the first segment length.

[0325] Optionally, the continuous transmission time of the target uplink channel corresponds to at least one nominal TDW, and each of the at least one nominal TDW includes one or more actual TDWs;

[0326] The starting position of the first actual TDW in the first nominal TDW is the starting position of the first nominal TDW. If an event that destroys power consistency and phase continuity occurs, the ending position of the first actual TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or,

[0327] If no event that destroys power consistency and phase continuity occurs, the end position of the first actual TDW is the end position of the first nominal TDW.

[0328] The first nominal TDW is one of the at least one nominal TDW.

[0329] Optionally, the event that destroys power consistency and phase continuity includes: an uplink channel transmitted through the first nominal TDW is interrupted by any of the segmented TDWs.

[0330] Optionally, the second determination unit is further configured to determine that the terminal device has not performed time domain synchronization and / or frequency domain synchronization adjustment based on at least one of the terminal device's position, public timing parameters and service satellite ephemeris information within each of the segmented TDW; and / or, to determine that the terminal device has not performed TA adjustment based on the received timing advance command TAC within each of the segmented TDW.

[0331] Optionally, the uplink transmission device further includes a second sending unit configured to send a timing advance command TAC to the terminal device;

[0332] The second determining unit is further configured to: if the terminal device should perform TA adjustment based on the TAC indication within the first segmented TDW, the network device determines that the terminal device performs TA adjustment based on the TAC before sending the target uplink channel through the second segmented TDW;

[0333] The first segmented TDW is one of the multiple segmented TDWs; the second segmented TDW is a segmented TDW that follows the first segmented TDW and is adjacent to the first segmented TDW.

[0334] Optionally, the event that destroys power consistency and phase continuity includes at least one of the following:

[0335] In TDD spectrum, downlink timeslots determined based on a semi-static downlink / uplink configuration pattern, either downlink reception or downlink monitoring;

[0336] For normal CP, the interval between two consecutive uplink channel transmissions is greater than 13 symbols; for extended CP, the interval between two consecutive uplink channel transmissions is greater than 11 symbols;

[0337] When the interval between two consecutive uplink channel transmissions is not greater than 13 symbols, the terminal device is scheduled for uplink transmission other than the target uplink channel in the interval;

[0338] Based on the collision rules defined by the protocol, one or more uplink channel transmissions in the target uplink channel are discarded or cancelled;

[0339] When the target uplink channel is a PUSCH, two consecutive uplink channel transmissions are associated with different uplink beams;

[0340] When the target uplink channel is a PUCCH, two consecutive uplink channel transmissions are associated with different uplink beams or different power control parameters;

[0341] Performing TA adjustment based on a timing advance command TAC received by the terminal device;

[0342] Frequency hopping processing in the frequency domain;

[0343] When the terminal device is a half-duplex FDD compact terminal and the target uplink channel is PUSCH, the uplink channel transmission is discarded or cancelled based on the discard rule defined by the protocol, or there are symbols overlapping with downlink reception or downlink monitoring between two consecutive uplink channel transmissions.

[0344] Optionally, the second sending unit is further configured to send first configuration information to the terminal device; the first configuration information is used to determine the first segment length.

[0345] Optionally, the first configuration information is carried by at least one of the following information:

[0346] Radio resource control RRC signaling, system messages, media access control element MAC CE, and downlink control information DCI.

[0347] Optionally, when the terminal device is in a connected state, the first configuration information is carried by terminal device-specific RRC signaling; and / or,

[0348] When the terminal device is in an idle state or an inactive state, the first configuration information is carried through a system message.

[0349] Optionally, the second receiving unit 1401 is further configured to receive capability information sent by the terminal device; the capability information includes first capability information and / or second capability information;

[0350] The first capability information is used to indicate the minimum time interval for which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment; and / or the maximum time interval for which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment;

[0351] The second capability information is used to indicate the maximum duration that the terminal device can maintain power consistency and phase continuity.

[0352] Optionally, the target uplink channel includes at least one of the following: PUSCH, PUCCH, and PRACH.

[0353] Those skilled in the art should understand that the relevant description of the above-mentioned uplink transmission device in the embodiment of the present application can be understood with reference to the relevant description of the uplink transmission method in the embodiment of the present application.

[0354] Figure 15 is a schematic diagram of a communication device 1500 provided in an embodiment of the present application. The communication device can be a terminal device or a network device. The communication device 1500 shown in Figure 15 includes a processor 1510, which can call and execute a computer program from a memory to implement the method in the embodiment of the present application.

[0355] Optionally, as shown in FIG15 , the communication device 1500 may further include a memory 1520. The processor 1510 may call and execute a computer program from the memory 1520 to implement the method in the embodiment of the present application.

[0356] The memory 1520 may be a separate device independent of the processor 1510 , or may be integrated into the processor 1510 .

[0357] Optionally, as shown in FIG15 , the communication device 1500 may further include a transceiver 1530 , and the processor 1510 may control the transceiver 1530 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0358] The transceiver 1530 may include a transmitter and a receiver. The transceiver 1530 may further include an antenna, and the number of antennas may be one or more.

[0359] Optionally, the communication device 1500 may specifically be a network device in an embodiment of the present application, and the communication device 1500 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0360] Optionally, the communication device 1500 may specifically be a mobile terminal / terminal device of an embodiment of the present application, and the communication device 1500 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0361] Figure 16 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 1600 shown in Figure 16 includes a processor 1610, which can call and run a computer program from a memory to implement the method according to the embodiment of the present application.

[0362] Optionally, as shown in FIG16 , the chip 1600 may further include a memory 1620. The processor 1610 may call and execute a computer program from the memory 1620 to implement the method in the embodiment of the present application.

[0363] The memory 1620 may be a separate device independent of the processor 1610 , or may be integrated into the processor 1610 .

[0364] Optionally, the chip 1600 may further include an input interface 1630. The processor 1610 may control the input interface 1630 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0365] Optionally, the chip 1600 may further include an output interface 1640. The processor 1610 may control the output interface 1640 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0366] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0367] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0368] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0369] FIG17 is a schematic block diagram of a communication system 1700 provided in an embodiment of the present application. As shown in FIG17 , the communication system 1700 includes a terminal device 1710 and a network device 1720 .

[0370] Among them, the terminal device 1710 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1720 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not repeated here.

[0371] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0372] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0373] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0374] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0375] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0376] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0377] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0378] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0379] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0380] The embodiment of the present application also provides a computer program.

[0381] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not described here.

[0382] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0383] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0384] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0385] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0386] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0387] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0388] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0389] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An uplink transmission method, the method comprising: The terminal device determines, based on the first segment length, a segmented time domain window TDW corresponding to the target uplink channel, wherein the target uplink channel includes N uplink channels, the segmented TDW is associated with a time interval for adjusting time domain synchronization and / or frequency domain synchronization of the terminal device, and N is a positive integer; The terminal device sends the target uplink channel according to the segmented TDW.

2. The method according to claim 1, wherein The transmission duration of the target uplink channel corresponds to at least one segmented TDW, and the terminal device sends the target uplink channel according to the segmented TDW, including: Before sending the target uplink channel through each segmented TDW of the at least one segmented TDW, the terminal device performs time domain synchronization and / or frequency domain synchronization adjustment for each segmented TDW.

3. The method according to claim 1 or 2, wherein: The transmission duration of the target uplink channel corresponds to at least one segmented TDW, and the starting position of a first segmented TDW in the at least one segmented TDW is the starting position of the first uplink channel in the N uplink channels.

4. The method according to claim 3, wherein: The starting position of the first uplink channel is the first symbol of the first uplink channel, The first uplink channel is the first uplink channel among the N uplink channels determined according to the time domain resource allocation indication; or The first uplink channel is the first valid uplink channel among the N uplink channels.

5. The method according to any one of claims 1 to 4, wherein: The transmission duration of the target uplink channel corresponds to at least two segmented TDWs, the starting position of the K+1th segmented TDW in the at least two segmented TDWs is the ending position of the Kth segmented TDW in the at least two segmented TDWs, and K is a positive integer.

6. The method according to any one of claims 1 to 4, wherein: The transmission duration of the target uplink channel corresponds to at least two segmented TDWs, and the starting position of the K+1th segmented TDW in the at least two segmented TDWs is the starting position of the Mth uplink channel in the N uplink channels, or, The starting position of the K+1th segmented TDW in the at least two segmented TDWs is the starting position of the time unit where the Mth uplink channel in the N uplink channels is located, K is a positive integer, and M is a positive integer.

7. The method according to any one of claims 1 to 6, wherein: The transmission duration of the target uplink channel corresponds to at least one segmented TDW, and each segmented DTW in the at least one segmented TDW includes one or more actual TDWs; The starting position of the first actual TDW in the first segmented TDW is the starting position of the first segmented TDW. If an event that destroys power consistency and phase continuity occurs, the ending position of the first actual TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or, If no event that destroys power consistency and phase continuity occurs, the end position of the first actual TDW is the end position of the first segmented TDW; The first segmented TDW is one segmented TDW among the at least one segmented TDW.

8. The method according to any one of claims 1 to 7, wherein: The transmission duration of the target uplink channel corresponds to at least one nominal TDW; each nominal TDW in the at least one nominal TDW includes one or more segmented TDWs; The starting position of the first segmented TDW in the first nominal TDW is the starting position of the first nominal TDW; and the first nominal TDW is one of the at least one nominal TDW.

9. The method according to claim 8, wherein Except for the first segment TDW and the last segment TDW in the first nominal TDW, the lengths of other segment TDWs are determined according to the first segment length.

10. The method according to claim 8 or 9, wherein: The length of the first segment TDW in the first nominal TDW is determined according to the first segment length; or, The length of a first segmented TDW in the first nominal TDW is determined according to the length of a last segmented TDW in a nominal TDW preceding the first nominal TDW and the first segment length.

11. The method according to any one of claims 1 to 10, wherein: The transmission duration of the target uplink channel corresponds to at least one nominal TDW; each of the at least one nominal TDW includes one or more actual TDWs; The starting position of the first actual TDW in the first nominal TDW is the starting position of the first nominal TDW. If an event that destroys power consistency and phase continuity occurs, the ending position of the first actual TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or, If no event that destroys power consistency and phase continuity occurs, the end position of the first actual TDW is the end position of the first nominal TDW; The first nominal TDW is one of the at least one nominal TDW.

12. The method according to claim 11, wherein The event that destroys power consistency and phase continuity includes: an uplink channel transmitted through the first nominal TDW is interrupted by any of the segmented TDWs.

13. The method according to any one of claims 1 to 12, wherein: The terminal device is prohibited from performing time domain synchronization and / or frequency domain synchronization adjustment based on at least one of the position of the terminal device, public timing parameters and service satellite ephemeris information within each segmented TDW; and / or, The terminal device prohibits TA adjustment based on the received timing advance command TAC within each of the segmented TDWs.

14. The method according to any one of claims 1 to 13, wherein: When the terminal device is instructed to perform TA adjustment based on the received timing advance command TAC within the first segment TDW, the terminal device determines to perform TA adjustment based on the TAC before sending the target uplink channel through the second segment TDW; The first segmented TDW is one of the multiple segmented TDWs; the second segmented TDW is a segmented TDW located after the first segmented TDW and adjacent to the first segmented TDW.

15. The method according to claim 7 or 11, wherein: The event that destroys power consistency and phase continuity includes at least one of the following: In TDD spectrum, downlink timeslots determined based on a semi-static downlink / uplink configuration pattern, either downlink reception or downlink monitoring; For normal CP, the interval between two consecutive uplink channel transmissions is greater than 13 symbols; for extended CP, the interval between two consecutive uplink channel transmissions is greater than 11 symbols; When the interval between two consecutive uplink channel transmissions is not greater than 13 symbols, the terminal device is scheduled for uplink transmission other than the target uplink channel in the interval; Based on the collision rules defined by the protocol, one or more uplink channel transmissions in the target uplink channel are discarded or cancelled; When the target uplink channel is a PUSCH, two consecutive uplink channel transmissions are associated with different uplink beams; When the target uplink channel is a PUCCH, two consecutive uplink channel transmissions are associated with different uplink beams or different power control parameters; Performing TA adjustment based on a timing advance command TAC received by the terminal device; Frequency hopping processing in the frequency domain; When the terminal device is a half-duplex FDD compact terminal and the target uplink channel is PUSCH, the uplink channel transmission is discarded or cancelled based on the discard rule defined by the protocol, or there are symbols overlapping with downlink reception or downlink monitoring between two consecutive uplink channel transmissions.

16. The method according to any one of claims 1 to 15, wherein: The first segment length is predefined, or determined according to a predefined rule, or determined according to first configuration information sent by the network device, or determined according to a segment length set configured by the network device.

17. The method according to claim 16, wherein The first configuration information is carried by at least one of the following information: Radio resource control RRC signaling, system messages, media access control element MAC CE, and downlink control information DCI.

18. The method according to claim 16 or 17, wherein When the terminal device is in a connected state, the first configuration information is carried by terminal device-specific RRC signaling; and / or, When the terminal device is in an idle state or an inactive state, the first configuration information is carried through a system message.

19. The method according to any one of claims 1 to 18, wherein: Also includes: The terminal device sends capability information; The capability information includes first capability information and / or second capability information; The first capability information is used to indicate a minimum time interval within which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment; and / or, a maximum time interval within which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment; The second capability information is used to indicate the maximum duration that the terminal device can maintain power consistency and phase continuity.

20. The method according to any one of claims 1 to 19, wherein: The target uplink channel includes at least one of the following: a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and a physical random access channel PRACH.

21. An uplink transmission method, the method comprising: The network device receives the target uplink channel; The target uplink channel includes N uplink channels, where N is a positive integer. The target uplink channel is transmitted in a segmented time domain window TDW. The segmented TDW is determined according to the first segment length. The segmented TDW is associated with the time interval for the terminal device to perform time domain synchronization and / or frequency domain synchronization adjustment.

22. The method according to claim 21, wherein The transmission duration of the target uplink channel corresponds to at least one segmented TDW. Before the network device determines that the terminal device sends the target uplink channel through each segmented TDW in the at least one segmented TDW, it performs time domain synchronization and / or frequency domain synchronization adjustment for each segmented TDW.

23. The method according to claim 21 or 22, wherein: The transmission duration of the target uplink channel corresponds to at least one segmented TDW, and the starting position of a first segmented TDW in the at least one segmented TDW is the starting position of the first uplink channel in the N uplink channels.

24. The method according to claim 23, wherein The starting position of the first uplink channel is the first symbol of the first uplink channel, The first uplink channel is the first uplink channel among the N uplink channels determined according to the time domain resource allocation indication; or The first uplink channel is the first valid uplink channel among the N uplink channels.

25. The method according to any one of claims 21 to 24, wherein: The transmission duration of the target uplink channel corresponds to at least two segmented TDWs, the starting position of the K+1th segmented TDW in the at least two segmented TDWs is the ending position of the Kth segmented TDW in the at least two segmented TDWs, and K is a positive integer.

26. The method according to any one of claims 21 to 24, wherein: The transmission duration of the target uplink channel corresponds to at least two segmented TDWs, and the starting position of the K+1th segmented TDW in the at least two segmented TDWs is the starting position of the Mth uplink channel in the N uplink channels, or, The starting position of the K+1th segmented TDW in the at least two segmented TDWs is the starting position of the time unit where the Mth uplink channel in the N uplink channels is located, K is a positive integer, and M is a positive integer.

27. The method according to any one of claims 21 to 26, wherein: The transmission duration of the target uplink channel corresponds to at least one segmented TDW, and each segmented DTW in the at least one segmented TDW includes one or more actual TDWs; The starting position of the first actual TDW in the first segmented TDW is the starting position of the first segmented TDW. If an event that destroys power consistency and phase continuity occurs, the ending position of the first actual TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or, If no event that destroys power consistency and phase continuity occurs, the end position of the first actual TDW is the end position of the first segmented TDW; the first segmented TDW is one segmented TDW in the at least one segmented TDW.

28. The method according to any one of claims 21 to 27, wherein: The continuous transmission time of the target uplink channel corresponds to at least one nominal TDW; each nominal TDW in the at least one nominal TDW includes one or more segmented TDWs; The starting position of the first segmented TDW in the first nominal TDW is the starting position of the first nominal TDW, and the first nominal TDW is one of the at least one nominal TDW.

29. The method according to claim 28, wherein Except for the first segment TDW and the last segment TDW in the first nominal TDW, the lengths of other segment TDWs are determined according to the first segment length.

30. The method according to claim 28 or 29, wherein The length of the first segment TDW in the first nominal TDW is determined according to the first segment length; or, The length of a first segmented TDW in the first nominal TDW is determined according to the length of a last segmented TDW in a nominal TDW preceding the first nominal TDW and the first segment length.

31. The method according to any one of claims 21 to 30, wherein: The target uplink channel continuous transmission time corresponds to at least one nominal TDW, and each of the at least one nominal TDW includes one or more actual TDWs; The starting position of the first actual TDW in the first nominal TDW is the starting position of the first nominal TDW. If an event that destroys power consistency and phase continuity occurs, the ending position of the first actual TDW is the last symbol of the uplink channel corresponding to the occurrence of the event; and / or, If no event that destroys power consistency and phase continuity occurs, the end position of the first actual TDW is the end position of the first nominal TDW. The first nominal TDW is one of the at least one nominal TDW.

32. The method according to claim 31, wherein The event that destroys power consistency and phase continuity includes: an uplink channel transmitted through the first nominal TDW is interrupted by any of the segmented TDWs.

33. The method according to any one of claims 21 to 32, wherein: The network device determines that the terminal device does not perform time domain synchronization and / or frequency domain synchronization adjustment based on at least one of the position of the terminal device, public timing parameters and service satellite ephemeris information within each segmented TDW; and / or, The network device determines that the terminal device does not perform TA adjustment based on the received timing advance command TAC within each of the segmented TDWs.

34. The method according to any one of claims 21 to 33, wherein: The network device sends a timing advance command (TAC) to the terminal device. If the terminal device should perform TA adjustment based on the TAC indication within the first segment TDW, the network device determines that the terminal device performs TA adjustment based on the TAC before sending the target uplink channel through the second segment TDW. The first segmented TDW is one of the multiple segmented TDWs; the second segmented TDW is a segmented TDW that follows the first segmented TDW and is adjacent to the first segmented TDW.

35. The method according to claim 27 or 31, wherein The event that destroys power consistency and phase continuity includes at least one of the following: In TDD spectrum, downlink timeslots determined based on a semi-static downlink / uplink configuration pattern, either downlink reception or downlink monitoring; For normal CP, the interval between two consecutive uplink channel transmissions is greater than 13 symbols; for extended CP, the interval between two consecutive uplink channel transmissions is greater than 11 symbols; When the interval between two consecutive uplink channel transmissions is not greater than 13 symbols, the terminal device is scheduled for uplink transmission other than the target uplink channel in the interval; Based on the collision rules defined by the protocol, one or more uplink channel transmissions in the target uplink channel are discarded or cancelled; When the target uplink channel is a PUSCH, two consecutive uplink channel transmissions are associated with different uplink beams; When the target uplink channel is a PUCCH, two consecutive uplink channel transmissions are associated with different uplink beams or different power control parameters; Performing TA adjustment based on a timing advance command TAC received by the terminal device; Frequency hopping processing in the frequency domain; When the terminal device is a half-duplex FDD compact terminal and the target uplink channel is PUSCH, the uplink channel transmission is discarded or cancelled based on the discard rule defined by the protocol, or there are symbols overlapping with downlink reception or downlink monitoring between two consecutive uplink channel transmissions.

36. The method according to any one of claims 21 to 35, wherein: Also includes: The network device sends first configuration information to the terminal device; The first configuration information is used to determine the first segment length.

37. The method according to claim 36, wherein The first configuration information is carried by at least one of the following information: Radio resource control RRC signaling, system messages, media access control element MAC CE, and downlink control information DCI.

38. The method according to claim 36 or 37, wherein When the terminal device is in a connected state, the first configuration information is carried by terminal device-specific RRC signaling; and / or, When the terminal device is in an idle state or an inactive state, the first configuration information is carried through a system message.

39. The method according to any one of claims 21 to 38, wherein: Also includes: The network device receives the capability information sent by the terminal device; The capability information includes first capability information and / or second capability information; The first capability information is used to indicate a minimum time interval within which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment; and / or, a maximum time interval within which the terminal device can perform time domain synchronization and / or frequency domain synchronization adjustment; The second capability information is used to indicate the maximum duration that the terminal device can maintain power consistency and phase continuity.

40. The method according to any one of claims 21 to 39, wherein: The target uplink channel includes at least one of the following: a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and a physical random access channel PRACH.

41. An uplink transmission device, applied to a terminal device, comprising: A first determining unit is configured to determine a segmented time domain window TDW corresponding to a target uplink channel according to the first segment length, wherein the target uplink channel includes N uplink channels, the segmented TDW is associated with a time interval for adjusting time domain synchronization and / or frequency domain synchronization of the terminal device, and N is a positive integer; The first sending unit is configured to send the target uplink channel according to the segmented TDW.

42. An uplink transmission device, applied to a network device, comprising: a second receiving unit, configured to receive a target uplink channel; The target uplink channel includes N uplink channels, and the target uplink channel is transmitted in multiple segmented time domain windows TDW. The multiple segmented TDWs are determined based on the first segment length. The segmented TDWs are associated with the time interval for time domain synchronization and / or frequency domain synchronization adjustment of the terminal device, and N is a positive integer.

43. A terminal device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 20.

44. A network device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 21 to 40.

45. A chip comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 20.

46. ​​A chip, comprising: A processor, configured to call and execute a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 21 to 40.

47. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 20.

48. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 21 to 40.

49. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 20.

50. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 21 to 40.

51. A computer program causing a computer to execute the method according to any one of claims 1 to 20.

52. A computer program causing a computer to perform the method of any one of claims 21 to 40.

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