WO2023077327A1

WO2023077327A1 - Timer parameter determination method and apparatus, and device and storage medium

Info

Publication number: WO2023077327A1
Application number: PCT/CN2021/128527
Authority: WO
Inventors: 吴作敏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2023-05-11
Also published as: CN117813878A

Abstract

A timer parameter determination method and apparatus, and a device and a storage medium, which belong to the field of communications. The method comprises: determining a timer parameter of a target timer according to a timing relationship and/or a reference node, wherein the timer parameter comprises at least one of a start moment, a restart moment, an end moment and a validity period. By means of the method, a network device and a terminal device can be prevented from having an inconsistent understanding regarding a validity period of a timer.

Description

Method, device, equipment and storage medium for determining timer parameters

technical field

The present application relates to the communication field, and in particular to a method, device, equipment and storage medium for determining timer parameters.

Background technique

Currently, the third generation partnership project (third Generation Partnership Project, 3GPP) is researching non-terrestrial communication network (Non-Terrestrial Network, NTN) technology. In the NTN system, satellite communication is generally used to provide communication services to ground terminals (User Equipment, UE).

In the NTN system, the network device needs to send synchronization assistance information to the terminal equipment, and the synchronization assistance information is used for the terminal equipment to complete time domain and/or frequency domain synchronization. Since the synchronous auxiliary information will change with time, therefore, in NR-NTN (New Radio NTN, new air interface - non-terrestrial communication network) and IoT-NTN (Internet of Things NTN, Internet of Things - non-terrestrial communication network) In the system, a timer needs to be configured for the network device and the terminal device, and the timer can be used by the terminal device to determine whether the acquired synchronization assistance information is valid.

However, in the timing relationship of the NTN system, the uplink and downlink timings of the network equipment and the terminal equipment are different, resulting in inconsistent understanding of the validity period of the timer by the network equipment and the terminal equipment.

Contents of the invention

Embodiments of the present application provide a method, device, device, and storage medium for determining timer parameters. Described technical scheme is as follows:

According to an aspect of an embodiment of the present application, a method for determining timer parameters is provided, the method includes determining the timer parameters of the target timer according to the timing relationship and/or the reference node, and the timer parameters include start time, restart time, At least one of end time and validity period.

According to another aspect of the embodiment of the present application, a device for determining a timer parameter is provided, the device comprising:

A determining module, configured to determine a timer parameter of the target timer according to a timing relationship and/or a reference node, where the timer parameter includes at least one of a start time, a restart time, an end time and a validity period.

According to another aspect of the embodiments of the present application, a communication device is provided, and the communication device includes:

A processor and a memory; the memory stores a computer program, wherein the computer program is loaded and executed by the processor to implement the method for determining the timer parameter as described above.

According to another aspect of the embodiments of the present application, a chip is provided, and the chip includes a programmable logic circuit and/or program instructions, so as to implement the method for determining timer parameters as described above when the chip is running.

According to another aspect of the embodiment of the present application, a computer-readable storage medium is provided, and a computer program is stored in the computer-readable storage medium, and the computer program is used for execution by a processor to realize the setting of the timer parameter as described above. Determine the method.

The technical solutions provided by the embodiments of the present application may include the following beneficial effects:

By limiting the start time, restart time, end time and validity period of the target timer to be determined according to the timing relationship in the NTN system, it is possible to avoid inconsistent understanding of the validity period of the timer by the network device and the terminal device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a schematic diagram showing the architecture of a communication system according to an exemplary embodiment;

Fig. 2 is a schematic diagram showing a timing relationship of a reference point in an NTN system of a network device according to an exemplary embodiment;

Fig. 3 is a schematic diagram showing the timing relationship of the reference point in the NTN system of the satellite according to an exemplary embodiment;

Fig. 4 is a schematic diagram showing the timing relationship of an NTN system whose reference point is not in a network device and a satellite according to another exemplary embodiment;

Fig. 5 is a flow chart of a method for determining a timer parameter according to an exemplary embodiment;

Fig. 6 is a flowchart of a method for determining a timer parameter according to another exemplary embodiment;

Fig. 7 is a flowchart of a method for determining a timer parameter according to another exemplary embodiment;

Fig. 8 is a schematic diagram of determining the start time or restart time according to the first timing relationship according to an exemplary embodiment;

Fig. 9 is a schematic diagram of determining the startup moment or the restart moment according to the first timing relationship according to another exemplary embodiment;

Fig. 10 is a schematic diagram of determining the starting moment or restarting moment according to the first timing relationship according to another exemplary embodiment;

Fig. 11 is a flowchart of a method for determining a timer parameter according to another exemplary embodiment;

Fig. 12 is a flowchart of a method for determining a timer parameter according to another exemplary embodiment;

Fig. 13 is a schematic diagram of determining an end time or a validity period according to a second time sequence relationship according to an exemplary embodiment;

Fig. 14 is a schematic diagram of determining an end time or a validity period according to a second time sequence relationship according to another exemplary embodiment;

Fig. 15 is a flowchart of a method for determining a timer parameter according to another exemplary embodiment;

Fig. 16 is a flowchart of a method for determining a timer parameter according to another exemplary embodiment;

Fig. 17 is a schematic diagram of determining an end time or a validity period according to a third time sequence relationship according to an exemplary embodiment;

Fig. 18 is a schematic diagram of determining an end time or a validity period according to a third time sequence relationship according to another exemplary embodiment;

Fig. 19 is a structural block diagram of an apparatus for determining a timer parameter according to an exemplary embodiment;

Fig. 20 is a schematic structural diagram of a communication device provided according to an exemplary embodiment.

Detailed ways

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

At present, 3GPP is researching Non Terrestrial Network (NTN, non-terrestrial communication network equipment) technology. NTN generally uses satellite communication to provide communication services to ground users. The NTN system currently includes NR-NTN and IoT-NTN systems. Among them, the IoT-NTN system includes at least NB-IoT-NTN (Narrow Band Internet of Things NTN, narrowband Internet of Things-non-terrestrial communication network) and eMTC-NTN (Enhance Machine Type Communication NTN, enhanced machine type-non-terrestrial communication network )system.

Exemplarily, FIG. 1A is a schematic structural diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1A , the communication system may include a network device 1201, and the network device 1201 may be a device that communicates with a terminal device 1101 (or called a communication terminal, terminal). The network device 1201 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located within the coverage area.

Figure 1A exemplarily shows one network device and two terminal devices. In some embodiments of the present application, the communication system may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. , which is not limited in this embodiment of the present application.

Exemplarily, FIG. 1B shows a schematic structural diagram of another communication system provided by an embodiment of the present application. Referring to FIG. 1B , the communication system includes a terminal device 1102 and a satellite 1301 , and wireless communication can be performed between the terminal device 1102 and the satellite 1301 . The network formed between the terminal device 1102 and the satellite 1301 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 1B , the satellite 1301 may function as a base station, and the terminal device 1102 and the satellite 1301 may communicate directly. Under the system architecture, the satellite 1301 can be called a network device. In some embodiments of the present application, the communication system may include multiple network devices 1102, and the coverage of each network device 1301 may include other numbers of terminal devices, which is not limited in this embodiment of the present application.

Exemplarily, FIG. 1C is a schematic structural diagram of another communication system provided by an embodiment of the present application. Referring to FIG. 1C , it includes a terminal device 1103 , a satellite 1302 and a base station 1202 , wireless communication can be performed between the terminal device 1103 and the satellite 1302 , and communication can be performed between the satellite 1302 and the base station 1202 . The network formed among the terminal equipment 1103, the satellite 1302 and the base station 1202 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 1C , the satellite 1302 may not have the function of a base station, and the communication between the terminal device 1103 and the base station 1202 needs to be relayed through the satellite 1302 . Under this system architecture, the base station 1202 may be called a network device. In some embodiments of the present application, the communication system may include multiple network devices 1202, and the coverage of each network device 1202 may include other numbers of terminal devices, which is not limited in this embodiment of the present application.

In an embodiment, in the NR-NTN system, the network device may be a gNB (generation NodeB, 5G base station), and in the IoT-NTN system, the network device may be an eNB (evolved NodeB, 4G base station).

In one embodiment, a feeder link (Feeder Link) refers to a link used for communication between a network device and a satellite.

In one embodiment, a service link (Service Link) refers to a link used for communication between a terminal device and a satellite.

Embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be called user equipment (user equipment, UE), access terminal, user unit, user station, mobile station, mobile station (mobile station, MS), mobile terminal (mobile Terminal, MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

In the embodiment of the present application, the terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) stations, personal digital assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as NR networks The terminal equipment in the network, or the terminal equipment in the public land mobile network (public land mobile network, PLMN) network that will evolve in the future, etc.

In this embodiment of the application, a terminal device can be a device that provides voice and/or data connectivity to users, and can be used to connect people, things and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like. The terminal device in the embodiment of the present application can be mobile phone (mobile phone), tablet computer (Pad), notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc. Optionally, UE can be used to act as a base station. For example, a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cell phone and an automobile communicate with each other using sidelink signals. Communication between cellular phones and smart home devices without relaying communication signals through base stations.

In the embodiment of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).

In the embodiment of the present application, the terminal device may be a mobile phone, a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home. The terminal equipment involved in the embodiments of the present application may also be referred to as terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station , remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. Terminal equipment can also be fixed or mobile.

As an example but not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

The network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be called an access network device or a wireless access network device, for example, the network device may be a base station. The network device in this embodiment of the present application may refer to a radio access network (radio access network, RAN) node (or device) that connects a terminal device to a wireless network. The base station can broadly cover various names in the following, or replace with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), primary station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network controller, access node , wireless node, access point (access piont, AP), transmission node, transceiver node, base band unit (base band unit, BBU), remote radio unit (remote radio unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning nodes, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. A base station may also refer to a communication module, a modem or a chip configured in the aforementioned equipment or device. The base station can also be a mobile switching center, a device that undertakes the function of a base station in D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication, and a device in a 6G network. Network-side equipment, equipment that assumes base station functions in future communication systems, etc. Base stations can support networks of the same or different access technologies. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.

Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to serve as a device in communication with another base station.

In some deployments, the network device in this embodiment of the present application may refer to a CU or a DU, or, the network device includes a CU and a DU. A gNB may also include an AAU.

Network equipment and terminal equipment can be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the air. In the embodiment of the present application, the scenarios where the network device and the terminal device are located are not limited.

As an example but not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments of the present application, the network device may be a satellite or a balloon station. For example, the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc. In some embodiments of the present application, the network device may also be a base station installed on land, in water, and other locations.

In this embodiment of the present application, the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell, where the small cell may include: a metro cell, a micro cell, a pico cell ( pico cell), femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

In the related technology of this application, in the TN (Terrestrial Network, ground communication network) system, when the terminal equipment is scheduled to perform uplink transmission on the uplink time unit n, the terminal equipment needs to consider timing advance (Timing Advance) when performing uplink transmission. , TA), so that when the uplink transmission reaches the network device, it is on the uplink time unit n of the network device. In the NTN system, the terminal equipment also needs to consider the impact of the TA when performing uplink transmission. Due to the large propagation delay in the NTN system, if it is necessary to ensure that the uplink time unit n and the downlink time unit n of the network equipment are aligned, the range of the TA value is usually relatively large. Therefore, a reference point (Reference Point) is introduced in the NTN system, that is, it is enough to ensure that the uplink time unit n and the downlink time unit n are aligned at the reference point. In an embodiment, in the NR-NTN system, the unit of the time unit may be a time slot; in the IoT-NTN system, the unit of the time unit may be a time slot or a subframe.

In one embodiment, the reference point can be in the network equipment, or in the satellite, or in a location other than the network equipment and the satellite. The timing relationship in the NTN system includes at least one of the following situations:

The first case: the reference point is in the network device;

As shown in FIG. 2 , the downlink time unit n and the uplink time unit n of the network device are aligned. There is an offset value 1 between the uplink time unit n and the downlink time unit n of the terminal device, and the offset value 1 can be considered as the offset value between the uplink timing and downlink timing of the terminal device, or in other words, the offset value used by the terminal device The TA that is synchronized on the uplink. In order to align the uplink transmission of the terminal device with the uplink time unit n of the network device when the uplink transmission of the uplink time unit n reaches the network device, the value of the offset value 1 is relatively large.

The second case: the reference point is on the satellite;

As shown in FIG. 3 , there is an offset value 2 between the downlink time unit n and the uplink time unit n of the network device, and the offset value 2 can be regarded as an offset value between the downlink timing and the uplink timing of the network device. There is also an offset value 3 between the uplink time unit n and the downlink time unit n of the terminal device. The offset value 3 can be considered as the offset value between the uplink timing and downlink timing of the terminal device, or in other words, the terminal device TA for uplink synchronization. The satellite's downlink time unit n and uplink time unit n are aligned.

The third case: the reference point is not in the network equipment and satellites.

At this time, the reference point is usually between the network equipment and the satellite. As shown in Figure 4, there is an offset value 4 between the downlink time unit n and the uplink time unit n of the network equipment, and the offset value 4 can be considered as the network equipment The offset value between the downlink timing and uplink timing of . There is also an offset value 5 between the uplink time unit n and the downlink time unit n of the terminal device, which can be considered as the offset value between the uplink timing and downlink timing of the terminal device, or in other words, the terminal device TA for uplink synchronization. The downlink time unit n and the uplink time unit n on the reference point side are aligned.

Timer: In NTN systems such as NTN systems based on NR systems or IoT systems, network devices need to send synchronization assistance information to terminal devices, where the synchronization assistance information is used by terminal devices to complete time domain and/or frequency domain synchronization. Since the auxiliary synchronization information changes with time, the network device may configure at least one timer for the terminal device, and the at least one timer may be used by the terminal device to determine whether the obtained auxiliary synchronization information is valid. In addition, in the NR system or the IoT system, the network device configures various timers for the terminal device for different purposes, and the various timers are usually also applicable to the corresponding NTN system. For example, the network device can configure an uplink synchronization timer for the terminal device to maintain uplink timing synchronization, wherein the uplink synchronization timer is used to control how long the MAC entity considers that the timing advance group (Timing Advance) corresponding to the uplink synchronization timer Group, TAG) The uplink of the serving cell associated with it is timing synchronized.

FIG. 5 shows a flowchart of a method for determining a timer parameter provided by an exemplary embodiment of the present application. The method can be executed by a terminal device or a network device, and the method includes:

Step 520, determine the timer parameters of the target timer according to the timing relationship and/or the reference node.

The terminal device and/or the network device determines the timer parameters of the target timer according to the first timing relationship and/or the first reference node, so that the start time, restart time and end time of the same target timer on the terminal device and the network device At least one of the time points is consistent, or the uplink time unit corresponding to at least one of the start time, restart time, and end time of the same target timer on the terminal device and the network device is consistent, or the terminal device and the network device are consistent. The downlink time units corresponding to at least one of the start time, restart time and end time of the same target timer are consistent.

Wherein, the timer parameter includes at least one of a start time, a restart time, an end time and a validity period.

In one embodiment, the target timer is a timer in the NTN system. For example, the target timer is a timer in the NR-NTN system. For another example, the target timer is a timer in the IoT-NTN system.

In one embodiment, the target timer is a timer configured in the NR system and applicable to the NR-NTN system, and/or, the target timer is a timer configured in the IoT system and applicable to the IoT-NTN system. For example, the target timer is an uplink synchronization timer.

In one embodiment, the target timer is a timer corresponding to the synchronization assistance information. For example, target timers include at least one of the following:

The timer corresponding to the ephemeris information; the timer corresponding to the public timing advance value and/or the offset value of the public timing advance value; the timer corresponding to the validity period of uplink synchronization (validity timer for UL synchronization); GNSS (Global navigation satellite system, The timer corresponding to the global navigation satellite system); the timer corresponding to the common transmission delay.

Schematically, in the NTN system, the network device needs to send synchronization assistance information to the terminal device, where the synchronization assistance information is used for the terminal device to complete time domain and/or frequency domain synchronization. The information obtained by the terminal device according to the synchronization assistance information includes at least one of the following: ephemeris information, public timing advance value, offset value of the public timing advance value, public transmission delay, reference time t0 (epoch time), and reference point position.

The terminal device completes corresponding time domain and/or frequency domain synchronization according to the information obtained from the synchronization assistance information and its own GNSS capability. The terminal device may obtain at least one of the following information based on its GNSS capabilities: the terminal device's location, time reference and frequency reference. Moreover, based on the above information and information obtained from the synchronization assistance information, the terminal device can calculate timing and/or frequency offset, and apply timing advance compensation and/or frequency offset adjustment in idle state or inactive state or connected state.

Optionally, the service link timing advance TA may refer to the round-trip transmission delay value between the satellite and the terminal device.

Optionally, the round-trip transmission delay RTT of the terminal device may refer to the round-trip transmission delay value between the satellite and the terminal device, the round-trip transmission delay value between the satellite and the reference point, and the round-trip transmission between the network device and the reference point The sum of delay values.

Optionally, the complete TA of the terminal device may refer to the sum of the round-trip transmission delay value between the satellite and the terminal device and the round-trip transmission delay value between the satellite and the reference point.

Optionally, the common timing advance value (Common TA) may be at least one of the following: for example, a round-trip transmission delay value between the network device and the reference point, and/or, a round-trip transmission delay value between the network device and the satellite , and/or, the round-trip transmission delay value between the satellite and the reference point.

Optionally, the offset value (Common TA drift) of the common timing advance value can be a first-order derivative of the common timing advance value and/or a second-order derivative of the common timing advance value.

Optionally, the common delay (Common delay) may be at least one of the following: for example, a one-way transmission delay between the network device and the reference point, and/or, a one-way transmission delay between the network device and the satellite , and/or, the one-way transmission delay between the satellite and the reference point.

Optionally, the ephemeris information includes satellite position, velocity and time state (Position Velocity Time, PVT) vector information. The ephemeris information is sent in the ephemeris information format, and the ephemeris information format sent by the network device may include at least one of the following two methods:

Method 1: Ephemeris information format based on orbit information. In this manner, the network device broadcasts the ephemeris parameters (α(km), e, I(deg), Ω(deg), ω(deg), M(deg)) at time t0.

Mode 2: ephemeris information format based on instantaneous state vector. In this manner, the network device broadcasts the satellite's PVT vectors (SX, SY, SZ, VX, VY, VZ) based on the geocentric coordinate system at time t0 to the terminal device.

Since the synchronization assistance information changes with time, at least one timer needs to be configured for the terminal device in the NR-NTN and/or IoTN system, and the at least one timer can be used for the terminal device to determine the obtained Whether synchronous auxiliary information is valid.

For example, the ephemeris information corresponds to the first timer. After the terminal device starts or restarts the first timer, the terminal device may determine that the ephemeris information acquired by the terminal device is valid before the first timer expires.

For another example, the common timing advance value corresponds to the second timer. After the terminal device starts or restarts the second timer, the terminal device may determine that the public timing advance value obtained by the terminal device is valid before the second timer expires.

For another example, the validity period of uplink synchronization corresponds to the third timer. After the terminal device starts or restarts the third timer, the terminal device may determine that the uplink synchronization validity period of the terminal device is valid before the third timer expires.

For another example, GNSS corresponds to the fourth timer. After the terminal device starts or restarts the fourth timer, the terminal device may determine that the information obtained by the terminal device according to the GNSS, such as the position, time reference or frequency reference of the terminal device, is valid before the fourth timer expires.

For another example, the common transmission delay corresponds to the fifth timer. After the terminal device starts or restarts the fifth timer, the terminal device may determine that the public transmission delay acquired by the terminal device is valid before the fifth timer expires.

It should be understood that the first timer to the fifth timer above can be the same timer, or correspond to the same timer length; they can also be different timers or correspond to different timer lengths; or the first timer to the fifth timer Some of the five timers are the same timer or correspond to the same timer length. Of course, the above partial information may not correspond to the timer.

In one embodiment, when the terminal device is configured with both the third timer corresponding to the uplink synchronization validity period and the uplink synchronization timer, the terminal device may consider that as long as one of the third timer and the uplink synchronization timer expires , the uplink synchronization of the terminal equipment fails. Optionally, in this case, the behavior of the terminal device when the third timer expires is different from the behavior of the terminal device when the uplink synchronization timer expires; or, the behavior of the terminal device when the third timer expires is different from that of the uplink synchronization timer. The behavior of the end device is the same.

It should be noted that the length of the timer is a reference duration configured by the network device to the terminal device, and the length of the timer is different from the validity period of the timer. The valid period of the timer is the duration when the timer is actually running, and the valid period of the timer is determined based on the length of the timer. However, the valid period of the timer may be different from the length of the timer, for example, the valid period of the timer is shorter than the length of the timer, or the valid period of the timer is longer than the length of the timer.

In summary, by limiting the start time, restart time, end time and validity period of the target timer to be determined according to the timing relationship in the NTN system, it is possible to avoid inconsistencies in the understanding of the validity period of the timer by network devices and terminal devices.

In one embodiment, based on the embodiment shown in FIG. 5, step 520 can be replaced with step 620. FIG. 6 shows a flow chart of a method for determining timer parameters provided in an exemplary embodiment of the present application, which can be determined by Executed by a terminal device or a network device, the method includes:

Step 620: Determine timer parameters of the target timer according to the first timing relationship and/or the first reference node.

For example, the terminal device and the network device determine the timer parameters of the target timer according to the first timing relationship and/or the first reference node, so that the start time, restart time and end time of the same target timer on the terminal device and the network device are consistent.

The first reference node (reference node): refers to a node used to determine the timer parameters of the target timer, and the first reference node includes one of terminal equipment, satellites, reference points, and network equipment.

Reference Point: To ensure that the uplink time unit and downlink time unit of network equipment and terminal equipment are aligned, a reference point is set in the NTN system, and the downlink time unit of the reference point is aligned with the uplink time unit. Optionally, the position of the reference point is determined according to the position of the network device (for example, the reference point is in the network device); or the position of the reference point is determined according to the position of the satellite (for example, the reference point is in the satellite); or the position of the reference point is determined by the network device (For example, the reference point is neither in the network device nor in the satellite, or the reference point is between the network device and the satellite).

Wherein, the first timing relationship is one of the following timing relationships:

The downlink timing of the terminal equipment;

The downlink timing of the satellite;

The downlink timing of the reference point;

The downlink timing of network equipment;

The uplink timing of the terminal equipment;

The uplink timing of the satellite;

The uplink timing of the reference point;

· Uplink timing of network equipment;

Wherein, the first reference node is one of the following: a terminal device, a satellite, a reference point, and a network device.

Schematically, with reference to FIGS. 2 to 4 , FIGS. 2 to 4 show the timing relationship of the reference point in the network device, the satellite, and the NTN system between the network device and the satellite.

In one embodiment, based on the embodiment shown in FIG. 6, step 620 can be replaced by step 720 and step 740. FIG. 7 shows a flowchart of a method for determining timer parameters provided by an exemplary embodiment of the present application, The method can be performed by a terminal device or a network device, and the method includes:

Step 720, determine the target time unit n according to the first timing relationship and/or the first reference node;

Optionally, the target time unit n includes a first time unit n1, and the first time unit n1 has an association relationship with the configuration parameters of the target timer; or, the first sub-time unit in the first time unit n1 is related to the target timer's Configuration parameters are associated.

Schematically, the first time unit n1 is the time unit used to transmit the configuration parameters of the target timer determined according to the first timing relationship; or, the first time unit n1 is determined according to the first reference node and used to transmit the target timing The time unit of the configuration parameter of the controller.

Schematically, the first sub-time unit is the sub-time unit used to transmit the configuration parameters of the target timer determined according to the first timing relationship; or, the first sub-time unit is determined according to the first reference node and used to transmit the target timer The sub-time unit of the configuration parameter of the timer.

Optionally, the configuration parameters include at least one of the start time, restart time, length and validity period of the target timer.

Optionally, the target time unit n includes a second time unit n2, and the second time unit n2 is determined based on the length of the target timer; or, the second sub-time unit in the second time unit n2 is based on the target timer The length is fixed. The length of the target timer is predefined or configured by the network device.

Step 740: Determine the timer parameter of the target timer based on the target time unit n.

In the first possible implementation mode, in order to ensure that the start time or restart time of the target timer is consistent between the terminal device and the network device side, the following steps are provided:

The target time unit n includes the first time unit n1, and step 740 can be replaced by one of the following:

First, the start time of the first time unit n1 is determined as the start time or restart time of the target timer;

Second, the end time of the first time unit n1 is determined as the start time or restart time of the target timer;

Third, the starting moment of the first sub-time unit in the first time unit n1 is determined as the starting moment or restarting moment of the target timer;

Fourth, the end time of the first sub-time unit in the first time unit n1 is determined as the start time or restart time of the target timer.

In the following, this method will be run on the terminal equipment, and the first timing relationship is the downlink timing of the satellite, as an example:

In the case where the reference point is the network device, FIG. 8 shows a schematic diagram of the terminal device determining the starting time or restarting time of the target timer when the downlink timing of the satellite is used as the first timing relationship. Schematically, the network device sends the configuration parameters of the target timer in the first time unit n1, and the terminal device receives the configuration parameters of the target timer in the first time unit n1, then the terminal device n1 (for example, the start time or end time of the first time unit n1, or the start time of the first symbol transmitting the configuration parameter of the target timer on the first time unit n1, or the first time unit n1 The end time of the last symbol of the configuration parameter of the target timer, etc., which is shown in FIG. 8 as the start time of the first time unit n1) determines the start time or restart time of the target timer.

In the case where the reference point is a satellite, FIG. 9 shows a schematic diagram of the terminal device determining the starting time or restarting time of the target timer when the downlink timing of the satellite is used as the first timing relationship. Schematically, the network device sends the configuration parameters of the target timer in the first time unit n1, and the terminal device receives the configuration parameters of the target timer in the first time unit n1, then the terminal device n1 (for example, the start time or end time of the first time unit n, or the start time of the first symbol transmitting the configuration parameter of the target timer on the first time unit n1, or the first time unit n1 The end time of the last symbol of the configuration parameter of the target timer, etc., which is shown in FIG. 9 as the start time of the first time unit n1) determines the start time or restart time of the target timer.

When the reference point is not in the network device and not in the satellite, FIG. 10 shows a schematic diagram of the terminal device determining the starting time or restarting time of the target timer when the downlink timing of the satellite is used as the first timing relationship. Schematically, the network device sends the configuration parameters of the target timer in the first time unit n1, and the terminal device receives the configuration parameters of the target timer in the first time unit n1, then the terminal device n1 (for example, the start time or end time of the first time unit n1, or the start time of the first symbol transmitting the configuration parameter of the target timer on the first time unit n1, or the first time unit n1 The end time of the last symbol of the configuration parameter of the target timer, etc., which is shown in FIG. 10 as the start time of the first time unit n1) determines the start time or restart time of the target timer.

In one embodiment, after determining the start time or restart time of the target timer, step 740 further includes:

Based on the start time of the target timer and the length of the target timer, determine the end time or validity period of the target timer; or determine the end time or validity period of the target timer based on the restart time of the target timer and the length of the target timer.

Optionally, the length of the target timer is predefined or configured by the network device.

In the second possible implementation mode, in order to ensure that the end time of the target timer is consistent between the terminal device and the network device side, the following steps are provided:

The target time unit n includes the second time unit n2, and step 740 can be replaced by one of the following:

First, the start moment of the second time unit n2 is determined as the end moment of the target timer;

Second, the end time of the second time unit n2 is determined as the end time of the target timer;

Third, the starting moment of the second sub-time unit in the second time unit n2 is determined as the end moment of the target timer;

Fourth, the end time of the second sub-time unit in the second time unit n2 is determined as the end time of the target timer;

Fifth, determine the validity period of the target timer based on the second time unit n2;

Sixth, determine the validity period of the target timer based on the second sub-time unit in the second time unit n2;

Optionally, the second time unit n2 is determined based on the length of the target timer; or, the second sub-time unit in the second time unit n2 is determined based on the length of the target timer, and the length of the target timer is predetermined defined or configured by a network device.

In summary, the terminal device and/or network device determines the timer parameters of the target timer according to the first timing relationship and/or the first reference node, so that the start time of the same target timer on the terminal device and the network device At least one of the restart time and end time is consistent, or the uplink time unit corresponding to at least one of the start time, restart time and end time of the same target timer on the terminal device and the network device is consistent, or the terminal The downlink time unit corresponding to at least one of the start time, restart time and end time of the same target timer on the device and the network device is consistent, and the terminal device and the network device have the same target timer start time, restart time and end time same understanding.

Based on the embodiment shown in FIG. 5, step 520 can be replaced with step 1120. FIG. 11 shows a flowchart of a method for determining a timer parameter provided by an exemplary embodiment of the present application, which is executed by a terminal device. include:

Step 1120: Determine timer parameters of the target timer according to the second timing relationship and/or the second reference node.

The terminal device determines the timer parameters of the target timer according to the second timing relationship and/or the second reference node, so that the terminal device and the network device have the same understanding of the end time of the same target timer, or the terminal device and the network device have the same understanding of the end time of the target timer, or the terminal device and the network device The understanding of the uplink time unit corresponding to the end time of the same target timer is the same, or the understanding of the downlink time unit corresponding to the end time of the same target timer on the terminal device and the network device is consistent.

The second reference node (reference node): refers to a node for determining the timer parameter of the target timer, and the second reference node includes one of a terminal device and a satellite.

Wherein, the second timing relationship is one of the following timing relationships:

The downlink timing of the terminal equipment;

The downlink timing of the satellite;

The uplink timing of the terminal equipment;

The uplink timing of the satellite;

Wherein, the second reference node is a satellite or a terminal device.

In an embodiment, according to the second timing relationship and/or the second reference node, the terminal device determines the end time or the validity period of the target timer.

Optionally, when the second timing relationship is the downlink timing of the terminal device or the uplink timing of the terminal device, or the second reference node is the terminal device, according to the length of the target timer, the terminal device determines the end time of the target timer or validity period; for details, refer to the first possible implementation manner in step 1220 below.

Optionally, when the second timing relationship is the downlink timing of the satellite or the uplink timing of the satellite, or the second reference node is a satellite, the terminal device determines the target timer according to the length of the target timer and the first offset value End time or expiration date. Optionally, the first offset value is determined based on the serving link timing advance TA of the terminal device. For detailed introduction, refer to the second possible implementation manner in step 1220 below.

Based on the optional embodiment shown in FIG. 11, step 1120 can be replaced with step 1220. FIG. 12 shows a flowchart of a method for determining a timer parameter provided by an exemplary embodiment of the present application. The method is performed by a terminal device Execution, the method includes:

Step 1220, according to the second timing relationship and/or the second reference node, determine the validity period of the target timer; or, according to the second timing relationship and/or the second reference node, based on the start time or restart time of the target timer, determine The end moment of the target timer.

For determining the validity period:

When the second timing relationship is the downlink timing of the terminal device or the uplink timing of the terminal device, or the second reference node is the terminal device, the terminal device according to the second timing relationship and/or the second reference node, and the target timer Length, which determines the validity period of the target timer. Schematically, the validity period of the target timer is equal to the length of the target timer.

When the second timing relationship is the downlink timing of the satellite or the uplink timing of the satellite, or the second reference node is a satellite, the terminal device determines the validity period of the target timer according to the length of the target timer and the first offset value. Schematically, the validity period of the target timer is equal to the sum of the length of the target timer and the first offset value.

For the determination method of the end time:

When the second timing relationship is the downlink timing of the terminal device or the uplink timing of the terminal device, or the second reference node is the terminal device, the terminal device according to the second timing relationship and/or the second reference node, and the target timer Length, based on the start time or restart time of the target timer, determines the end time of the target timer. Schematically, the end time of the target timer is equal to the sum of the start time or restart time and the length of the target timer.

In the case where the second timing relationship is the downlink timing of the satellite or the uplink timing of the satellite, or the second reference node is a satellite, the terminal device is based on the start time of the target timer or The restart time determines the end time of the target timer. Schematically, the end time of the target timer is equal to the sum of the start time or restart time, the length of the target timer and the first offset value.

The method for determining the start time or restart time of the target timer:

The starting moment or restarting moment of the target timer is determined based on the third time unit n3, and the third time unit n3 is determined according to the second timing relationship and/or the second reference node.

Optionally, the start time or restart time of the target timer is the start time of the third time unit n3; or, the start time or restart time of the target timer is the end time of the third time unit n3; or, the target timer The starting moment or restarting moment of the target timer is the starting moment of the third sub-time unit in the third time unit n3; or, the starting moment or restarting moment of the target timer is the end of the third sub-time unit in the third time unit n3 time; wherein, the third time unit n3 has an associated relationship with the configuration parameters of the target timer; or, the third sub-time unit in the third time unit n3 has an associated relationship with the configuration parameters of the target timer.

Optionally, the third time unit n3 is the time unit used to transmit the configuration parameters of the target timer determined according to the second timing relationship; or, the third time unit n3 is determined according to the second reference node and used to transmit the target timing The time unit of the configuration parameter of the controller.

Optionally, the third sub-time unit is a sub-time unit used to transmit the configuration parameters of the target timer determined according to the second timing relationship; or, the third sub-time unit is determined according to the second reference node and used to transmit the target timer The sub-time unit of the configuration parameter of the timer.

Next, two possible implementations of the method for the terminal device to determine the termination moment or validity period of the timer will be introduced:

In the first possible implementation manner, when the second timing relationship is the downlink timing of the terminal device or the uplink timing of the terminal device, or the second reference node is the terminal device, the terminal device according to the second timing relationship and/or the second The reference node determines the validity period of the target timer; or, the terminal device determines the end time of the target timer based on the start time or restart time of the target timer according to the second timing relationship and/or the second reference node.

FIG. 13 shows a schematic diagram of determining the end time or the validity period of the target timer as the second timing relationship is the downlink timing of the terminal device. Schematically, the network device sends the configuration parameters of the target timer in the third time unit n3, and the terminal device receives the configuration parameters of the target timer in the third time unit n3.

The terminal device determines the validity period of the target timer according to the length of the target timer. Schematically, the validity period of the target timer is equal to the length of the target timer.

The third time unit n3 of the downlink sequence of the terminal equipment (for example, the start time or end time of the third time unit n3, or the start of the first symbol of the configuration parameter of the target timer transmitted on the third time unit n3 Time, or the end time of the last symbol of the configuration parameter of the target timer transmitted on the third time unit n3, Figure 13 shows the start time of the third time unit n3) to determine the start time or restart of the target timer time, and then determine the end time of the target timer according to the length of the target timer. Schematically, the end time of the target timer is equal to the sum of the start time or restart time and the length.

In this example, when the second timing relationship is the downlink timing of the terminal device, the starting time or restarting time of the target timer is the starting time of the third time unit n3 of the uplink timing of the terminal device. The end time of the time unit marked black in FIG. 13 is the end time of the target timer.

In a second possible implementation manner, when the second timing relationship is the downlink timing of the satellite or the uplink timing of the satellite, or the second reference node is a satellite, the terminal device, according to the length of the target timer and the first offset value, Determine the validity period of the target timer; or, the terminal device determines the end time or validity period of the target timer based on the start time or restart time of the target timer according to the length of the target timer and the first offset value. The first offset value is determined based on the serving link timing advance TA of the terminal device.

FIG. 14 shows a schematic diagram of determining the end time or validity period of the target timer, where the second timing relationship is the downlink timing of the satellite. Schematically, the network device sends the configuration parameters of the target timer in the third time unit n3, and the terminal device receives the configuration parameters of the target timer in the third time unit n3.

The terminal device determines the validity period of the target timer according to the length of the target timer and the first offset value. Schematically, the validity period of the target timer is equal to the sum of the length of the target timer and the first offset value.

The terminal device transmits the first symbol of the configuration parameter of the target timer on the third time unit n3 according to the third time unit n3 of the satellite downlink sequence (for example, the start time or the end time of the third time unit n3) The start moment, or the end moment of the last symbol of the configuration parameter of the target timer transmitted on the third time unit n3, which is shown in Figure 13 as the start moment of the third time unit n3) determines the start moment of the target timer or restart time, and then determine the end time of the target timer according to the length of the target timer and the first offset value. Schematically, the end time of the target timer is equal to the sum of the start time or restart time, the length of the target timer and the first offset value.

Optionally, the first offset value is determined based on the service link timing advance TA of the terminal device, for example, the first offset value is a round-trip transmission delay value between the terminal device and the satellite.

In this example, the end time of the time unit marked black in FIG. 14 is the end time of the target timer.

In summary, the terminal device determines the timer parameters of the target timer according to the second timing relationship and/or the second reference node, so that at least the end time and the validity period of the same target timer on the terminal device and the network device One is consistent, or the uplink time unit corresponding to the end time of the same target timer on the terminal device and the network device is consistent, or the downlink time unit corresponding to the end time of the same target timer on the terminal device and the network device is consistent, The terminal device and the network device have the same understanding of at least one of the end time of the target timer and the validity period.

Based on the embodiment shown in FIG. 5, step 520 can be replaced with step 1520. FIG. 15 shows a flowchart of a method for determining a timer parameter provided by an exemplary embodiment of the present application. The method is executed by a network device. The method include:

Step 1520: Determine timer parameters of the target timer according to the third timing relationship and/or the third reference node.

The network device determines the timer parameters of the target timer according to the third timing relationship and/or the third reference node, so that the understanding of the end time of the same target timer on the terminal device and the network device is consistent, or the terminal device and the network device The understanding of the uplink time unit corresponding to the end time of the same target timer is the same, or the understanding of the downlink time unit corresponding to the end time of the same target timer on the terminal device and the network device is consistent.

The third reference node (reference node): refers to a node for determining the timer parameter of the target timer, and the third reference node includes one of a reference point and a network device.

Wherein, the third timing relationship is one of the following timing relationships:

The downlink timing of the reference point;

The downlink timing of network equipment;

The uplink timing of the reference point;

· Uplink timing of network equipment;

Wherein, the third reference node is a reference point or a network device.

In an embodiment, according to the third timing relationship and/or the third reference node, the network device determines the end time or the validity period of the target timer.

Optionally, when the third timing relationship is the downlink timing of the network device or the uplink timing of the network device, or the third reference node is a network device, the network device determines according to the length of the target timer and the second offset value The end time or expiration date of the target timer. Optionally, the second offset value is determined based on the round-trip transmission delay RTT of the terminal device. For detailed introduction, refer to the first possible implementation manner in the following step 1620 .

Optionally, when the third timing relationship is the downlink timing of the reference point or the uplink timing of the reference point, or the third reference node is the reference point, the terminal device determines according to the length of the target timer and the third offset value The end time or expiration date of the target timer. Optionally, the third offset value is determined based on the complete TA of the terminal device. For detailed introduction, refer to the second possible implementation manner in step 1620 below.

Based on the optional embodiment shown in FIG. 15, step 1520 can be replaced with step 1620. FIG. 16 shows a flowchart of a method for determining a timer parameter provided by an exemplary embodiment of the present application. The method is performed by a network device Execution, the method includes:

Step 1620, according to the third timing relationship and/or the third reference node, determine the validity period of the target timer; or, according to the third timing relationship and/or the third reference node, based on the start time or restart time of the target timer, determine The end moment of the target timer.

For determining the validity period:

When the third timing relationship is the downlink timing of the network device or the uplink timing of the network device, or the third reference node is a network device, the network device according to the third timing relationship and/or the third reference node, and the target timer The length and the second offset value determine the validity period of the target timer. Schematically, the validity period of the target timer is equal to the sum of the length of the target timer and the second offset value.

In the case where the third timing relationship is the downlink timing of the reference point or the uplink timing of the reference point, or the third reference node is the reference point, the network device determines the validity period of the target timer according to the length of the target timer and the third offset value . Schematically, the validity period of the target timer is equal to the sum of the length of the target timer and the third offset value.

For the determination method of the end time:

When the third timing relationship is the downlink timing of the network device or the uplink timing of the network device, or the third reference node is a network device, the network device according to the third timing relationship and/or the third reference node, and the target timer The length and the second offset value determine the end time of the target timer based on the start time or restart time of the target timer. Schematically, the end time of the target timer is equal to the sum of the start time or restart time, the length of the target timer and the second offset value.

When the third timing relationship is the downlink timing of the reference point or the uplink timing of the reference point, or when the third reference node is the reference point, the network device based on the length of the target timer and the third offset value, based on the target timer The start time or restart time determines the end time of the target timer. Schematically, the end time of the target timer is equal to the sum of the start time or restart time, the length of the target timer and the third offset value.

Optionally, the second offset value is determined based on the round-trip transmission delay RTT of the terminal device, and the third offset value is determined based on the complete TA of the terminal device.

The method for determining the start time or restart time of the target timer:

The starting moment or restarting moment of the target timer is determined based on the fourth time unit n4, and the fourth time unit n4 is determined according to the third timing relationship and/or the third reference node.

Optionally, the start time or restart time of the target timer is the start time of the fourth time unit n4; or, the start time or restart time of the target timer is the end time of the fourth time unit n4; or, the target timer The starting moment or restarting moment of the target timer is the starting moment of the fourth sub-time unit in the fourth time unit n4; or, the starting moment or restarting moment of the target timer is the end of the fourth sub-time unit in the fourth time unit n4 time; wherein, the fourth time unit n4 has an associated relationship with the configuration parameters of the target timer; or, the fourth sub-time unit in the fourth time unit n4 has an associated relationship with the configuration parameters of the target timer.

Optionally, the fourth time unit n4 is the time unit used to transmit the configuration parameters of the target timer determined according to the third timing relationship; or, the fourth time unit n4 is determined according to the third reference node and used to transmit the target timing The time unit of the configuration parameter of the controller.

Optionally, the fourth sub-time unit is a sub-time unit used to transmit the configuration parameters of the target timer determined according to the third timing relationship; or, the fourth sub-time unit is determined according to the third reference node and used to transmit the target timer The sub-time unit of the configuration parameter of the timer.

Next, two possible implementations of the method for the network device to determine the termination moment or validity period of the timer will be introduced:

In the first possible implementation manner, when the third timing relationship is the downlink timing of the network device or the uplink timing of the network device, or the third reference node is the network device, the network device shift value, to determine the validity period of the target timer; or, the network device determines the end time of the target timer based on the start time or restart time of the target timer according to the length of the target timer and the second offset value.

FIG. 17 shows that the third timing relationship is the downlink timing of the network device, and the end time or validity period of the target timer is determined. Schematically, the network device sends the configuration parameters of the target timer in the fourth time unit n4, and the terminal device receives the configuration parameters of the target timer in the fourth time unit n4.

The network device determines the validity period of the target timer according to the length of the target timer and the second offset value. Schematically, the validity period of the target timer is equal to the sum of the length of the target timer and the second offset value.

The network device according to the fourth time unit n4 of the downlink sequence of the network device (for example, the start time or the end time of the fourth time unit n4, or the first one of the configuration parameters of the target timer transmitted on the fourth time unit n4 The start moment of the symbol, or the end moment of the last symbol of the configuration parameter of the target timer transmitted on the fourth time unit n4, which is shown in Figure 17 as the start moment of the fourth time unit n4) to determine the target timer At the start time or restart time, the end time of the target timer is determined according to the length of the target timer and the second offset value. Schematically, the end time of the target timer is equal to the sum of the start time or restart time, length and second offset value of the target timer.

Optionally, the second offset value is determined based on the round-trip transmission delay RTT of the terminal device. For example, the second offset value is the sum of the round-trip transmission delay value between the satellite and the terminal device, the round-trip transmission delay value between the satellite and the reference point, and the round-trip transmission delay value between the network device and the reference point. Schematically, with reference to FIG. 4 , the second offset value is the sum of the offset value 4 and the offset value 5 .

In this example, the end time of the time unit marked black in FIG. 17 is the end time of the target timer.

In the second possible implementation manner, when the third timing relationship is the downlink timing of the reference point or the uplink timing of the reference point, or the third reference node is the reference point, the network device shifting the value to determine the validity period of the target timer; or, the network device determines the end time of the target timer based on the start time or restart time of the target timer according to the length of the target timer and the third offset value.

FIG. 18 shows that the third timing relationship is the downlink timing of the reference point, and the network device determines the end time or validity period of the target timer. Schematically, the network device sends the configuration parameters of the target timer in the fourth time unit n4, and the terminal device receives the configuration parameters of the target timer in the fourth time unit n4.

The network device determines the validity period of the target timer according to the length of the target timer and the third offset value. Schematically, the validity period of the target timer is equal to the sum of the length of the target timer and the third offset value.

The network device transmits the first symbol of the configuration parameter of the target timer on the fourth time unit n4 according to the fourth time unit n4 of the downlink timing of the reference point (for example, the start time or the end time of the fourth time unit n4) or the end time of the last symbol transmitting the configuration parameter of the target timer on the fourth time unit n4, FIG. 18 shows the start time of the fourth time unit n4) to determine the start of the target timer time or restart time, and then determine the end time of the target timer according to the length of the target timer and the third offset value. Schematically, the end time of the target timer is equal to the sum of the start time or restart time, length and the third offset value of the target timer.

Optionally, the third offset value is determined based on the complete TA of the terminal device. For example, the third offset value is the sum of the round-trip transmission delay value between the satellite and the terminal device and the round-trip transmission delay value between the satellite and the reference point. Schematically, with reference to FIG. 4 , the complete TA is an offset value of 5.

In this example, the end time of the time unit marked black in FIG. 18 is the end time of the target timer.

In summary, the network device determines the timer parameters of the target timer according to the third timing relationship and/or the third reference node, so that at least One is consistent, or the uplink time unit corresponding to the end time of the same target timer on the terminal device and the network device is consistent, or the downlink time unit corresponding to the end time of the same target timer on the terminal device and the network device is consistent, The terminal device and the network device understand at least one of the end time of the target timer and the validity period to be consistent.

It should be understood that, in the case of no contradiction, the various embodiments in the present application can be combined in any way, and the technical solutions obtained by the combination all belong to the protection scope of the embodiments of the present application.

Fig. 19 shows a structural block diagram of an apparatus for determining a timer parameter provided by an exemplary embodiment of the present application, and the apparatus includes:

The determining module 1901 is configured to determine timer parameters of the target timer according to the timing relationship and/or the reference node, where the timer parameters include at least one of start time, restart time, end time and validity period.

In an optional embodiment, the determining module 1901 is further configured to determine the timer parameter of the target timer according to the first timing relationship and/or the first reference node;

Downlink timing of terminal equipment;

Satellite downlink timing;

The downlink timing of the reference point;

Downlink timing of network equipment;

Uplink timing of terminal equipment;

Satellite uplink timing;

Uplink timing of the reference point;

Uplink timing of network equipment;

Wherein, the first reference node is one of the following:

Terminal equipment, satellites, reference points, network equipment.

In an optional embodiment, the determining module 1901 is further configured to determine the target time unit n according to the first timing relationship and/or the first reference node.

In an optional embodiment, the determining module 1901 is further configured to determine the timer parameter of the target timer based on the target time unit n.

In an optional embodiment, the target time unit n includes a first time unit n1, and the determining module 1901 is further configured to determine the start time of the first time unit n1 as the start time or restart time of the target timer.

In an optional embodiment, the determining module 1901 is further configured to determine the end time of the first time unit n1 as the start time or restart time of the target timer.

In an optional embodiment, the determining module 1901 is further configured to determine the start time of the first sub-time unit in the first time unit n1 as the start time or restart time of the target timer.

In an optional embodiment, the determining module 1901 is further configured to determine the end time of the first sub-time unit in the first time unit n1 as the start time or restart time of the target timer.

Wherein, the first time unit n1 has an association relationship with the configuration parameters of the target timer; or, the first sub-time unit in the first time unit n1 has an association relationship with the configuration parameters of the target timer.

In an optional embodiment, the first time unit n1 has an association relationship with the configuration parameters of the target timer, including:

The first time unit n1 is the time unit used to transmit the configuration parameters of the target timer determined according to the first timing relationship; or,

The first time unit n1 is a time unit used to transmit the configuration parameters of the target timer determined by the first reference node.

In an optional embodiment, the first sub-time unit in the first time unit n1 has an association relationship with the configuration parameters of the target timer, including:

The first sub-time unit is a sub-time unit used to transmit configuration parameters of the target timer determined according to the first timing relationship; or,

The first sub-time unit is a sub-time unit used to transmit the configuration parameters of the target timer determined by the first reference node.

In an optional embodiment, the determining module 1901 is further configured to determine an end time or a valid period of the target timer based on the start time of the target timer and the length of the target timer.

In an optional embodiment, the determining module 1901 is further configured to determine an end time or a valid period of the target timer based on the restart time of the target timer and the length of the target timer.

In an optional embodiment, the target time unit n includes a second time unit n2, and the determining module 1901 is further configured to determine the start time of the second time unit n2 as the end time of the target timer.

In an optional embodiment, the determining module 1901 is further configured to determine the end time of the second time unit n2 as the end time of the target timer.

In an optional embodiment, the determining module 1901 is further configured to determine the start time of the second sub-time unit in the second time unit n2 as the end time of the target timer.

In an optional embodiment, the determining module 1901 is further configured to determine the end time of the second sub-time unit in the second time unit n2 as the end time of the target timer.

In an optional embodiment, the determining module 1901 is further configured to determine the validity period of the target timer based on the second time unit n2.

In an optional embodiment, the determining module 1901 is further configured to determine the validity period of the target timer based on the second sub-time unit in the second time unit n2.

Wherein, the second time unit n2 is determined based on the length of the target timer; or, the second sub-time unit in the second time unit n2 is determined based on the length of the target timer.

In an optional embodiment, the apparatus includes at least one of terminal equipment and network equipment.

In an optional embodiment, the determining module 1901 is further configured to determine the timer parameter of the target timer according to the second timing relationship and/or the second reference node.

Downlink timing of terminal equipment;

Satellite downlink timing;

Uplink timing of terminal equipment;

Satellite uplink timing;

Wherein, the second reference node is a satellite or a terminal device.

In an optional embodiment, the determining module 1901 is further configured to determine an end time or a valid period of the target timer according to the second timing relationship and/or the second reference node.

In an optional embodiment, the determining module 1901 is further configured to: when the second timing relationship is the downlink timing of the terminal device or the uplink timing of the terminal device, or the second reference node is the terminal device, according to the target timer Length, which determines the end moment or validity period of the target timer.

In an optional embodiment, the determining module 1901 is further configured to, when the second timing relationship is the downlink timing of the satellite or the uplink timing of the satellite, or when the second reference node is a satellite, according to the length of the target timer and The first offset value determines the end moment or validity period of the target timer.

In an optional embodiment, the first offset value is determined based on the serving link timing advance TA of the terminal device.

In an optional embodiment, the determining module 1901 is further configured to determine the end time or the valid period of the target timer based on the start time or restart time of the target timer.

Wherein, the starting time or restarting time of the target timer is determined based on the third time unit n3, and the third time unit n3 is determined according to the second timing relationship and/or the second reference node.

In an optional embodiment, the start time or restart time of the target timer is determined based on the third time unit n3, including:

The start time or restart time of the target timer is the start time of the third time unit n3;

or,

The start time or restart time of the target timer is the end time of the third time unit n3;

or,

The starting moment or restarting moment of the target timer is the starting moment of the third sub-time unit in the third time unit n3;

or,

The start time or restart time of the target timer is the end time of the third sub-time unit in the third time unit n3.

Wherein, the third time unit n3 has an association relationship with the configuration parameters of the target timer; or, the third sub-time unit in the third time unit n3 has an association relationship with the configuration parameters of the target timer.

In an optional embodiment, the third time unit n3 has an association relationship with the configuration parameters of the target timer, including:

The third time unit n3 is the time unit used to transmit the configuration parameters of the target timer determined according to the second timing relationship; or,

The third time unit n3 is a time unit determined according to the configuration parameters of the transmission target timer determined by the second reference node.

The third sub-time unit in the third time unit n3 has an association relationship with the configuration parameters of the target timer, including:

The third sub-time unit is a sub-time unit used to transmit configuration parameters of the target timer determined according to the second timing relationship; or,

The third sub-time unit is a sub-time unit used to transmit the configuration parameters of the target timer determined by the second reference node.

In an optional embodiment, the determining module 1901 is further configured to determine the timer parameter of the target timer according to the third timing relationship and/or the third reference node;

The downlink timing of the reference point;

Downlink timing of network equipment;

Uplink timing of the reference point;

Uplink timing of network equipment;

Wherein, the third reference node is a reference point or a network device.

In an optional embodiment, the determining module 1901 is further configured to determine an end time or a valid period of the target timer according to a third timing relationship and/or a third reference node.

In an optional embodiment, the determining module 1901 is further configured to: when the third timing relationship is the downlink timing of the network device or the uplink timing of the network device, or the third reference node is a network device, according to the target timer The length and the second offset value determine the end time or validity period of the target timer.

In an optional embodiment, the determining module 1901 is further configured to: when the third timing relationship is the downlink timing of the reference point or the uplink timing of the reference point, or when the third reference node is the reference point, according to the target timer The length and the third offset value determine the end moment or validity period of the target timer.

In an optional embodiment, the second offset value is determined based on a round-trip transmission delay RTT of the terminal device.

In an optional embodiment, the third offset value is determined based on the complete TA of the terminal device.

Wherein, the starting time or restarting time of the target timer is determined based on the fourth time unit n4, and the fourth time unit n4 is determined according to the third timing relationship and/or the third reference node.

In an optional embodiment, the start time or restart time of the target timer is determined based on the fourth time unit n4, including:

The start time or restart time of the target timer is the start time of the fourth time unit n4;

Or, the start time or restart time of the target timer is the end time of the fourth time unit n4;

Or, the start time or restart time of the target timer is the start time of the fourth sub-time unit in the fourth time unit n4;

Or, the start time or restart time of the target timer is the end time of the fourth sub-time unit in the fourth time unit n4.

Wherein, the fourth time unit n4 has an association relationship with the configuration parameters of the target timer; or, the fourth sub-time unit in the fourth time unit n4 has an association relationship with the configuration parameters of the target timer.

In an optional embodiment, the fourth time unit n4 has an association relationship with the configuration parameters of the target timer, including:

The fourth time unit n4 is the time unit used to transmit the configuration parameters of the target timer determined according to the third timing relationship; or,

The fourth time unit n4 is a time unit used to transmit the configuration parameters of the target timer determined by the third reference node.

The fourth sub-time unit in the fourth time unit n4 has an association relationship with the configuration parameters of the target timer, including:

The fourth sub-time unit is a sub-time unit used to transmit the configuration parameters of the target timer determined according to the third timing relationship; or,

The fourth sub-time unit is a sub-time unit used to transmit the configuration parameters of the target timer determined by the third reference node.

In an optional embodiment, the length of the target timer is configured by the network device, or is predefined.

In an optional embodiment, the target timer is a timer in the NTN system.

In an optional embodiment, the target timer includes at least one of the following:

The timer corresponding to the ephemeris information;

A timer corresponding to the public timing advance value and/or the offset value of the public timing advance value;

A timer corresponding to the validity period of uplink synchronization;

GNSS corresponding timer;

The timer corresponding to the common transmission delay.

In summary, the above-mentioned device for determining the timer parameters is determined according to the timing relationship in the NTN system by defining the start time, restart time, end time and validity period of the target timer, which can avoid network equipment and terminal equipment from interacting with the timer. The understanding of the validity period is inconsistent.

The above-mentioned means for determining timer parameters further defines that the start time and restart time of the target timer are determined according to the first timing relationship and/or the first reference node in the NTN system, and the first timing relationship includes the downlink timing of the terminal equipment , the downlink timing of the satellite, the downlink timing of the reference point, the downlink timing of the network equipment, the uplink timing of the terminal equipment, the uplink timing of the satellite, the uplink timing of the reference point and the uplink timing of the network equipment, the first reference node includes terminal equipment, satellite One of the reference point and the network device can prevent the network device and the terminal device from inconsistency in understanding the validity period of the timer.

The above-mentioned device for determining the timer parameters is also determined according to the third timing relationship and/or the third reference node in the NTN system by defining the end time and validity period of the target timer, the third timing relationship includes the downlink timing of the reference point, One of the downlink timing of the network device, the uplink timing of the reference point, and the uplink timing of the network device. The third reference node is the network device or the reference point, which can avoid inconsistent understanding of the validity period of the timer by the network device and the terminal device.

FIG. 20 shows a schematic structural diagram of a communication device (UE or network device) provided by an exemplary embodiment of the present application. The communication device includes: a processor 2001 , a receiver 2002 , a transmitter 2003 , a memory 2004 and a bus 2005 .

The processor 2001 includes one or more processing cores, and the processor 2001 executes various functional applications and information processing by running software programs and modules.

The receiver 2002 and the transmitter 2003 can be implemented as a communication component, and the communication component can be a communication chip.

The memory 2004 is connected to the processor 2001 through the bus 2005 .

The memory 2004 may be used to store at least one instruction, and the processor 2001 is used to execute the at least one instruction, so as to implement various steps in the foregoing method embodiments.

In addition, the memory 2004 can be realized by any type of volatile or non-volatile storage device or their combination, volatile or non-volatile storage device includes but not limited to: magnetic disk or optical disk, electrically erasable and programmable Read-Only Memory (EEPROM, Electrically Erasable Programmable Read Only Memory), Erasable Programmable Read-Only Memory (EPROM, Erasable Programmable Read Only Memory), Static Random-Access Memory (SRAM, Static Random-Access Memory), Read-Only Memory (ROM, Read Only Memory), magnetic memory, flash memory, programmable read-only memory (PROM, Programmable Read Only Memory).

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as a memory including instructions, which can be executed by a processor of a communication device to implement the above-mentioned method for determining a coverage enhancement level. For example, the non-transitory computer-readable storage medium can be ROM, random access memory (RAM, Random-Access Memory), compact disc read-only memory (CD-ROM, Compact Disc Read Only Memory), magnetic tape, floppy disk and optical data storage devices, etc.

A non-transitory computer-readable storage medium, when the instructions in the non-transitory computer storage medium are executed by the processor of the communication device, the communication device can execute the above method for determining the timer parameter.

An exemplary embodiment of the present application also provides a network device, the network device includes: a processor; a transceiver connected to the processor; wherein the processor is configured to load and execute executable instructions to The methods for determining the timer parameters provided by the foregoing method embodiments are implemented.

An exemplary embodiment of the present application also provides a chip, the chip includes a programmable logic circuit and/or program instructions, when the chip is running, to implement the method for determining the timer parameters provided by the above method embodiments .

An exemplary embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores at least one instruction, at least one program, code set or instruction set, the at least one instruction, the At least one segment of program, the code set or instruction set is loaded and executed by the processor to implement the methods for determining timer parameters provided by the above method embodiments.

It should be understood that the "plurality" mentioned herein refers to two or more than two. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship.

Other embodiments of the present application will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the application, these modifications, uses or adaptations follow the general principles of the application and include common knowledge or conventional technical means in the technical field not disclosed in the application . The specification and examples are to be considered exemplary only, with a true scope and spirit of the application indicated by the following claims.

It should be understood that the present application is not limited to the precise constructions which have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

A method for determining timer parameters, characterized in that the method comprises:

The timer parameter of the target timer is determined according to the timing relationship and/or the reference node, and the timer parameter includes at least one of a start time, a restart time, an end time and a valid period.
The method according to claim 1, wherein the determining the timer parameters of the target timer according to the timing relationship and/or the reference node comprises:

determining the timer parameter of the target timer according to a first timing relationship and/or a first reference node;

Wherein, the first timing relationship is one of the following timing relationships:

Downlink timing of terminal equipment;

Satellite downlink timing;

The downlink timing of the reference point;

Downlink timing of network equipment;

Uplink timing of the terminal equipment;

The uplink timing of the satellite;

Uplink timing of the reference point;

Uplink timing of the network device;

Wherein, the first reference node is one of the following:

The terminal device, the satellite, the reference point, the network device.
The method according to claim 2, wherein the determining the timer parameter of the target timer according to the first timing relationship and/or the first reference node comprises:

determining a target time unit n according to the first timing relationship and/or the first reference node;

determining the timer parameter of the target timer based on the target time unit n.
The method according to claim 3, wherein the target time unit n includes a first time unit n1, and determining the timer parameter of the target timer based on the target time unit n includes:

determining the start time of the first time unit n1 as the start time or restart time of the target timer;

or,

determining the end time of the first time unit n1 as the start time or restart time of the target timer;

or,

determining the start time of the first sub-time unit in the first time unit n1 as the start time or restart time of the target timer;

or,

determining the end time of the first sub-time unit in the first time unit n1 as the start time or restart time of the target timer;

Wherein, the first time unit n1 has an association relationship with the configuration parameters of the target timer; or, the first sub-time unit in the first time unit n1 has an association relationship with the configuration parameters of the target timer .
The method according to claim 4, wherein the first time unit n1 has an association relationship with the configuration parameters of the target timer, including:

The first time unit n1 is a time unit for transmitting configuration parameters of the target timer determined according to the first timing relationship; or,

The first time unit n1 is a time unit for transmitting configuration parameters of the target timer determined according to the first reference node.
The method according to claim 4, wherein the first sub-time unit in the first time unit n1 has an association relationship with the configuration parameters of the target timer, including:

The first sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the first timing relationship; or,

The first sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the first reference node.
The method according to any one of claims 4 to 6, wherein the determining the timer parameter of the target timer based on the target time unit n further includes:

determining the end time or validity period of the target timer based on the start time of the target timer and the length of the target timer;

or,

Based on the restart time of the target timer and the length of the target timer, an end time or a valid period of the target timer is determined.
The method according to claim 3, wherein the target time unit n includes a second time unit n2, and determining the timer parameter of the target timer based on the target time unit n includes :

determining the start time of the second time unit n2 as the end time of the target timer;

or,

determining the end time of the second time unit n2 as the end time of the target timer;

or,

determining the start time of the second sub-time unit in the second time unit n2 as the end time of the target timer;

or,

determining the end time of the second sub-time unit in the second time unit n2 as the end time of the target timer;

or,

determining the validity period of the target timer based on the second time unit n2;

or,

determining the validity period of the target timer based on the second sub-time unit in the second time unit n2;

Wherein, the second time unit n2 is determined based on the length of the target timer; or, the second sub-time unit in the second time unit n2 is determined based on the length of the target timer.
The method according to any one of claims 1 to 8, characterized in that, the method is executed by a terminal device; and/or, the method is executed by a network device.
The method according to claim 1, wherein the method is executed by a terminal device; and determining the timer parameters of the target timer according to the timing relationship and/or the reference node includes:

determining the timer parameter of the target timer according to a second timing relationship and/or a second reference node;

Wherein, the second timing relationship is one of the following timing relationships:

The downlink timing of the terminal equipment;

Satellite downlink timing;

Uplink timing of the terminal equipment;

The uplink timing of the satellite;

Wherein, the second reference node is the satellite or the terminal device.
The method according to claim 10, wherein the determining the timer parameter of the target timer according to the second timing relationship and/or the second reference node comprises:

Determine the end time or validity period of the target timer according to the second timing relationship and/or the second reference node.
The method according to claim 10 or 11, wherein the determining the end time or validity period of the target timer according to the second timing relationship and/or the second reference node includes:

When the second timing relationship is the downlink timing of the terminal device or the uplink timing of the terminal device, or the second reference node is the terminal device, according to the length of the target timer, determine The end time or validity period of the target timer;

or,

When the second timing relationship is the downlink timing of the satellite or the uplink timing of the satellite, or the second reference node is the satellite, according to the length of the target timer and the first offset The value determines the end moment or expiration date of the target timer.
The method according to claim 12, wherein the first offset value is determined based on a serving link timing advance TA of the terminal device.
The method according to any one of claims 11 to 13, wherein the determining the end time or validity period of the target timer includes:

determining the end time or validity period of the target timer based on the start time or restart time of the target timer;

Wherein, the start time or restart time of the target timer is determined based on a third time unit n3, and the third time unit n3 is determined according to the second timing relationship and/or the second reference node.
The method according to claim 14, wherein the start time or restart time of the target timer is determined based on the third time unit n3, comprising:

The start time or restart time of the target timer is the start time of the third time unit n3;

or,

The start time or restart time of the target timer is the end time of the third time unit n3;

or,

The start time or restart time of the target timer is the start time of the third sub-time unit in the third time unit n3;

or,

The start time or restart time of the target timer is the end time of the third sub-time unit in the third time unit n3;

Wherein, the third time unit n3 has an association relationship with the configuration parameters of the target timer; or, the third sub-time unit in the third time unit n3 has an association relationship with the configuration parameters of the target timer .
The method according to claim 15, wherein the third time unit n3 has an association relationship with the configuration parameters of the target timer, including:

The third time unit n3 is a time unit for transmitting configuration parameters of the target timer determined according to the second timing relationship; or,

The third time unit n3 is a time unit for transmitting configuration parameters of the target timer determined according to the second reference node;

The third sub-time unit in the third time unit n3 has an association relationship with the configuration parameters of the target timer, including:

The third sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the second timing relationship; or,

The third sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the second reference node.
The method according to claim 1, wherein the method is performed by a network device; the determination of the timer parameters of the target timer according to the timing relationship and/or the reference node includes:

determining the timer parameter of the target timer according to a third timing relationship and/or a third reference node;

Wherein, the third timing relationship is one of the following timing relationships:

The downlink timing of the reference point;

The downlink timing of the network device;

Uplink timing of the reference point;

Uplink timing of the network device;

Wherein, the third reference node is the reference point or the network device.
The method according to claim 17, wherein the determining the timer parameter of the target timer according to the third timing relationship and/or the third reference node comprises:

Determine the end time or validity period of the target timer according to the third timing relationship and/or the third reference node.
The method according to claim 17 or 18, wherein the determining the end time or validity period of the target timer according to the third timing relationship and/or the third reference node includes:

When the third timing relationship is the downlink timing of the network device or the uplink timing of the network device, or the third reference node is the network device, according to the length of the target timer and the first Two offset values, to determine the end time or validity period of the target timer;

or,

When the third timing relationship is the downlink timing of the reference point or the uplink timing of the reference point, or the third reference node is the reference point, according to the length of the target timer and the first Three offset values, which determine the end time or validity period of the target timer.
The method according to claim 19, wherein the second offset value is determined based on a round-trip transmission delay (RTT) of the terminal device.
The method according to claim 19 or 20, wherein the third offset value is determined based on the complete TA of the terminal device.
The method according to any one of claims 17 to 21, wherein the determining the end time or validity period of the target timer includes:

determining the end time or validity period of the target timer based on the start time or restart time of the target timer;

Wherein, the start time or restart time of the target timer is determined based on a fourth time unit n4, and the fourth time unit n4 is determined according to the third timing relationship and/or the third reference node.
The method according to claim 22, wherein the start time or restart time of the target timer is determined based on the fourth time unit n4, comprising:

The start time or restart time of the target timer is the start time of the fourth time unit n4;

or,

The start time or restart time of the target timer is the end time of the fourth time unit n4;

or,

The start time or restart time of the target timer is the start time of the fourth sub-time unit in the fourth time unit n4;

or,

The start time or restart time of the target timer is the end time of the fourth sub-time unit in the fourth time unit n4;

Wherein, the fourth time unit n4 has an association relationship with the configuration parameters of the target timer; or, the fourth sub-time unit in the fourth time unit n4 has an association relationship with the configuration parameters of the target timer .
The method according to claim 23, wherein the fourth time unit n4 has an association relationship with the configuration parameters of the target timer, including:

The fourth time unit n4 is a time unit for transmitting configuration parameters of the target timer determined according to the third timing relationship; or,

The fourth time unit n4 is a time unit for transmitting configuration parameters of the target timer determined according to the third reference node;

The fourth sub-time unit in the fourth time unit n4 has an association relationship with the configuration parameters of the target timer, including:

The fourth sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the third timing relationship; or,

The fourth sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the third reference node.
The method according to any one of claims 12-16, 19-24, characterized in that the length of the target timer is configured by the network device, or is predefined.
The method according to any one of claims 1 to 25, wherein the target timer is a timer in the NTN system.
The method according to any one of claim 26, wherein the target timer comprises at least one of the following:

The timer corresponding to the ephemeris information;

A timer corresponding to the public timing advance value and/or the offset value of the public timing advance value;

A timer corresponding to the validity period of uplink synchronization;

GNSS corresponding timer;

The timer corresponding to the common transmission delay.
A device for determining timer parameters, characterized in that the device comprises:

A determining module, configured to determine a timer parameter of the target timer according to a timing relationship and/or a reference node, where the timer parameter includes at least one of a start time, a restart time, an end time and a validity period.
The device according to claim 28, wherein the determining module is further configured to determine the timer parameter of the target timer according to the first timing relationship and/or the first reference node;

Wherein, the first timing relationship is one of the following timing relationships:

Downlink timing of terminal equipment;

Satellite downlink timing;

The downlink timing of the reference point;

Downlink timing of network equipment;

Uplink timing of the terminal equipment;

The uplink timing of the satellite;

Uplink timing of the reference point;

Uplink timing of the network device;

Wherein, the first reference node is one of the following:

The terminal device, the satellite, the reference point, the network device.
The device according to claim 29, characterized in that,

The determining module is further configured to determine a target time unit n according to the first timing relationship and/or the first reference node;

The determining module is further configured to determine the timer parameter of the target timer based on the target time unit n.
The device according to claim 30, wherein the target time unit n includes a first time unit n1, and the determining module is further configured to determine the starting moment of the first time unit n1 as the The start time or restart time of the target timer;

or,

The determination module is further configured to determine the end time of the first time unit n1 as the start time or restart time of the target timer;

or,

The determination module is also used to determine the start time of the first sub-time unit in the first time unit n1 as the start time or restart time of the target timer;

or,

The determination module is further configured to determine the end time of the first sub-time unit in the first time unit n1 as the start time or restart time of the target timer;

Wherein, the first time unit n1 has an association relationship with the configuration parameters of the target timer; or, the first sub-time unit in the first time unit n1 has an association relationship with the configuration parameters of the target timer .
The device according to claim 31, wherein the first time unit n1 has an association relationship with the configuration parameters of the target timer, including:

The first time unit n1 is a time unit for transmitting configuration parameters of the target timer determined according to the first timing relationship; or,

The first time unit n1 is a time unit for transmitting configuration parameters of the target timer determined according to the first reference node.
The device according to claim 31, wherein the first sub-time unit in the first time unit n1 has an association relationship with the configuration parameters of the target timer, including:

The first sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the first timing relationship; or,

The first sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the first reference node.
The device according to any one of claims 31 to 33, wherein the determining module is further configured to determine the target timer based on the start time of the target timer and the length of the target timer The end time or validity period of the target timer;

or,

The determination module is further configured to determine an end time or a valid period of the target timer based on the restart time of the target timer and the length of the target timer.
The device according to claim 30, wherein the target time unit n includes a second time unit n2, and the determining module is further configured to determine the starting moment of the second time unit n2 is the end time of the target timer;

or,

The determination module is further configured to determine the end time of the second time unit n2 as the end time of the target timer;

or,

The determination module is further configured to determine the start time of the second sub-time unit in the second time unit n2 as the end time of the target timer;

or,

The determination module is further configured to determine the end time of the second sub-time unit in the second time unit n2 as the end time of the target timer;

or,

The determining module is further configured to determine the validity period of the target timer based on the second time unit n2;

or,

The determining module is further configured to determine the validity period of the target timer based on the second sub-time unit in the second time unit n2;

Wherein, the second time unit n2 is determined based on the length of the target timer; or, the second sub-time unit in the second time unit n2 is determined based on the length of the target timer.
The device according to any one of claims 28 to 35, wherein the device includes at least one of terminal equipment and network equipment.
The device according to claim 28, wherein the determining module is further configured to determine the timer parameter of the target timer according to a second timing relationship and/or a second reference node;

Wherein, the second timing relationship is one of the following timing relationships:

The downlink timing of the terminal equipment;

Satellite downlink timing;

Uplink timing of the terminal equipment;

The uplink timing of the satellite;

Wherein, the second reference node is the satellite or the terminal device.
The device according to claim 28, wherein the determining module is further configured to determine an end time or a validity period of the target timer according to the second timing relationship and/or the second reference node.
Apparatus according to claim 37 or 38, characterized in that

The determining module is further configured to: when the second timing relationship is the downlink timing of the terminal device or the uplink timing of the terminal device, or the second reference node is the terminal device, according to the The length of the target timer is determined to determine the end time or validity period of the target timer;

or,

The determining module is further configured to: when the second timing relationship is the downlink timing of the satellite or the uplink timing of the satellite, or the second reference node is the satellite, according to the target timing The length of the timer and the first offset value determine the end moment or validity period of the target timer.
The apparatus according to claim 39, wherein the first offset value is determined based on a serving link timing advance TA of the terminal equipment.
The device according to any one of claims 38 to 40, wherein the determining module is further configured to determine the end time or the restart time of the target timer based on the start time or restart time of the target timer validity period;

Wherein, the start time or restart time of the target timer is determined based on a third time unit n3, and the third time unit n3 is determined according to the second timing relationship and/or the second reference node.
The device according to claim 41, wherein the start time or restart time of the target timer is determined based on the third time unit n3, comprising:

The start time or restart time of the target timer is the start time of the third time unit n3;

or,

The start time or restart time of the target timer is the end time of the third time unit n3;

or,

The start time or restart time of the target timer is the start time of the third sub-time unit in the third time unit n3;

or,

The start time or restart time of the target timer is the end time of the third sub-time unit in the third time unit n3;

Wherein, the third time unit n3 has an association relationship with the configuration parameters of the target timer; or, the third sub-time unit in the third time unit n3 has an association relationship with the configuration parameters of the target timer .
The device according to claim 42, wherein the third time unit n3 has an association relationship with the configuration parameters of the target timer, including:

The third time unit n3 is a time unit for transmitting configuration parameters of the target timer determined according to the second timing relationship; or,

The third time unit n3 is a time unit for transmitting configuration parameters of the target timer determined according to the second reference node;

The third sub-time unit in the third time unit n3 has an association relationship with the configuration parameters of the target timer, including:

The third sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the second timing relationship; or,

The third sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the second reference node.
The device according to claim 28, wherein the determining module is further configured to determine the timer parameter of the target timer according to a third timing relationship and/or a third reference node;

Wherein, the third timing relationship is one of the following timing relationships:

The downlink timing of the reference point;

The downlink timing of the network device;

Uplink timing of the reference point;

Uplink timing of the network device;

Wherein, the third reference node is the reference point or the network device.
The device according to claim 44, wherein the determining module is further configured to determine an end time or a validity period of the target timer according to the third timing relationship and/or the third reference node.
Apparatus according to claim 44 or 45, characterized in that

The determining module is further configured to: when the third timing relationship is the downlink timing of the network device or the uplink timing of the network device, or the third reference node is the network device, according to the the length of the target timer and the second offset value, and determine the end time or validity period of the target timer;

or,

The determining module is further configured to: when the third timing relationship is the downlink timing of the reference point or the uplink timing of the reference point, or the third reference node is the reference point, according to the The length of the target timer and the third offset value are used to determine the end time or validity period of the target timer.
The apparatus according to claim 46, wherein the second offset value is determined based on a round-trip transmission delay (RTT) of the terminal device.
The apparatus according to claim 46 or 47, wherein the third offset value is determined based on the complete TA of the terminal device.
The device according to any one of claims 44 to 48, wherein the determination module is further configured to determine the end time or the restart time of the target timer based on the start time or restart time of the target timer validity period;

Wherein, the start time or restart time of the target timer is determined based on a fourth time unit n4, and the fourth time unit n4 is determined according to the third timing relationship and/or the third reference node.
The device according to claim 49, wherein the start time or restart time of the target timer is determined based on the fourth time unit n4, comprising:

The start time or restart time of the target timer is the start time of the fourth time unit n4;

or,

The start time or restart time of the target timer is the end time of the fourth time unit n4;

or,

The start time or restart time of the target timer is the start time of the fourth sub-time unit in the fourth time unit n4;

or,

The start time or restart time of the target timer is the end time of the fourth sub-time unit in the fourth time unit n4;

Wherein, the fourth time unit n4 has an association relationship with the configuration parameters of the target timer; or, the fourth sub-time unit in the fourth time unit n4 has an association relationship with the configuration parameters of the target timer .
The device according to claim 50, wherein the fourth time unit n4 has an association relationship with the configuration parameters of the target timer, including:

The fourth time unit n4 is a time unit for transmitting configuration parameters of the target timer determined according to the third timing relationship; or,

The fourth time unit n4 is a time unit for transmitting configuration parameters of the target timer determined according to the third reference node;

The fourth sub-time unit in the fourth time unit n4 has an association relationship with the configuration parameters of the target timer, including:

The fourth sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the third timing relationship; or,

The fourth sub-time unit is a sub-time unit for transmitting configuration parameters of the target timer determined according to the third reference node.
The device according to any one of claims 39-43, 46-51, characterized in that the length of the target timer is configured by the network device, or is predefined.
The device according to any one of claims 28 to 52, wherein the target timer is a timer in the NTN system.
The device according to any one of claim 53, wherein the target timer includes at least one of the following:

The timer corresponding to the ephemeris information;

A timer corresponding to the public timing advance value and/or the offset value of the public timing advance value;

A timer corresponding to the validity period of uplink synchronization;

GNSS corresponding timer;

The timer corresponding to the common transmission delay.
A communication device, characterized in that the communication device includes: a processor and a memory, the memory stores a computer program, and the computer program is loaded and executed by the processor to implement any one of claims 1 to 27. The method for determining the timer parameters.
A chip, characterized in that the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, the method for determining timer parameters according to any one of claims 1 to 27 is implemented.
A computer-readable storage medium, characterized in that a computer program is stored in the storage medium, and the computer program is used for execution by a processor, so as to realize the setting of the timer parameter according to any one of claims 1 to 27 Determine the method.