Communication method, communication device, communication system, storage medium, and program product

Abstract

The present disclosure relates to a communication method, a communication device, a communication system, a storage medium, and a program product. The method comprises: receiving indication information sent by a network device, the indication information being used for indicating an adjustment value of a timing advance (TA); and determining the effective time of the indication information on the basis of a first time at which the indication information is received and at least one DSMW, wherein the at least one DSMW is a window for a terminal to send a sensing signal, and the sensing signal is used for performing sensing measurement on a sensing target. In the method of the present disclosure, upon receiving information indicating TA adjustment, the terminal can determine an appropriate effective time on the basis of a DSMW and the time when the indication information is received, so that the terminal can adjust the TA at an appropriate time to avoid affecting the phase coherence of sensing signals sent in the DSMW.

Description

Communication methods, communication equipment, communication systems, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, communication device, communication system, storage medium, and program product. Background Technology

[0002] Integrated Sensing and Communication (ISAC) is a novel communication technology applicable to 5G or 6G networks. It aims to integrate sensing capabilities into communication systems, enabling these systems to provide sensing as a service alongside communication. In an ISAC system, a sensing target can reflect or scatter the sensing signal transmitted by the sensing transmitter. The sensing receiver receives the reflected or scattered signal, measures it to obtain Doppler frequency shift information, and then uses this Doppler frequency information to sense the target. Summary of the Invention

[0003] During the window for transmitting sensing signals, which is also the window for obtaining Doppler information by measuring the sensing signals, it is necessary to determine how the terminal, as the sensing transmitter, should adjust the timing advance.

[0004] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.

[0005] In a first aspect, embodiments of this disclosure provide a communication method executed by a terminal, the method comprising:

[0006] Receive indication information sent by the network device, the indication information being used to indicate the adjustment value of the timing advance (TA);

[0007] The effective time of the indication information is determined based on the first moment of receiving the indication information and at least one Doppler Shift Measurement Window (DSMW), wherein the at least one DSMW is a window for the terminal to send sensing signals, which are used to perform sensing measurements on the sensing target.

[0008] Secondly, embodiments of this disclosure provide a communication method executed by a network device, the method comprising:

[0009] The terminal sends an indication message, which is used to indicate the adjustment value of the timing advance (TA). The first moment when the indication message is received and at least one DSMW are used to determine the effective time of the indication message. The at least one DSMW is a window for sending sensing signals, which are used to perform sensing measurements on the sensing target.

[0010] Thirdly, embodiments of this disclosure provide a communication device, wherein the communication device is used to perform the method described in the first aspect or the second aspect.

[0011] Fourthly, embodiments of this disclosure provide a communication system, including a terminal and a network device, wherein,

[0012] The terminal is configured to implement the method as described in the first aspect;

[0013] The network device is configured to implement the method as described in the second aspect.

[0014] Fifthly, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0015] When the instructions are executed on a communication device, the communication device causes the communication device to perform the method as described in the first aspect or the second aspect.

[0016] In a sixth aspect, embodiments of this disclosure provide a program product, including at least one of a program and instructions, wherein when the program and instructions are executed by a communication device, they implement the method described in the first aspect or the second aspect.

[0017] In this embodiment of the present disclosure, after receiving the information indicating TA adjustment, the terminal can determine the appropriate effective time based on the DSMW and the time of receiving the indication information, so that the terminal can adjust TA at the appropriate time to avoid affecting the phase consistency of the sensing signal transmitted in the DSMW. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0019] Figure 1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0020] Figure 1B is a duplex schematic diagram provided according to an embodiment of the present disclosure;

[0021] Figures 1C to 1D are schematic diagrams of time-frequency configuration in a sensing scenario provided according to embodiments of the present disclosure;

[0022] Figure 2A is an exemplary interactive schematic diagram of a method provided according to an embodiment of the present disclosure;

[0023] Figure 2B is a schematic diagram of the processing of a terminal supporting a first capability according to an embodiment of the present disclosure;

[0024] Figures 2C to 2I are schematic diagrams of DSMW provided according to embodiments of the present disclosure;

[0025] Figures 2J to 2K are schematic diagrams of instruction information provided according to embodiments of the present disclosure;

[0026] Figures 3A to 3C are exemplary interactive schematic diagrams of the method provided according to embodiments of the present disclosure;

[0027] Figure 4A is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure;

[0028] Figure 4B is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure;

[0029] Figure 5A is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0030] Figure 5B is a schematic diagram of a communication device according to an embodiment of the present disclosure. Detailed Implementation

[0031] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.

[0032] In a first aspect, embodiments of this disclosure provide a communication method executed by a terminal, the method comprising:

[0033] Receive indication information sent by the network device, the indication information being used to indicate the adjustment value of the timing advance (TA);

[0034] The effective time of the indication information is determined based on the first moment of receiving the indication information and at least one Doppler frequency shift measurement window (DSMW), wherein the at least one DSMW is a window through which the terminal sends a sensing signal, which is used to perform sensing measurement on the sensing target.

[0035] In the above embodiments, after receiving the information indicating TA adjustment, the terminal can determine the appropriate effective time based on the DSMW and the time of receiving the indication information, so that the terminal can adjust TA at the appropriate time to avoid affecting the phase consistency of the sensing signal transmitted in the DSMW.

[0036] In conjunction with the embodiments of the first aspect, in some embodiments, at least one DSMW includes one of the following:

[0037] Multiple periodic DSMWs;

[0038] Semi-persistent multiple DSMWs;

[0039] The network device triggers multiple DSMWs via signaling;

[0040] The network device triggers a DSMW via signaling.

[0041] In conjunction with the embodiments of the first aspect, in some embodiments, determining the effective time of the indication information based on the first time the indication information is received and at least one DSMW includes:

[0042] Based on the first DSMW located after the first time in the at least one DSMW, the effective time of the indication information is determined to be the start time of the first DSMW, and the interval between the first time and the start time of the first DSMW is greater than or equal to a preset duration.

[0043] In conjunction with the embodiments of the first aspect, in some embodiments, determining the effective time of the indication information based on the first time the indication information is received and at least one DSMW includes:

[0044] Based on the first DSMW located after the first time in the at least one DSMW, the effective time of the indication information is determined to be the start time of the uplink resource in the first DSMW, and the interval between the first time and the start time of the uplink resource is greater than or equal to a preset duration.

[0045] In conjunction with the embodiments of the first aspect, in some embodiments, determining the effective time of the indication information based on the first time the indication information is received and at least one DSMW includes:

[0046] If the first moment falls within the second DSMW of the at least one DSMW, the effective moment of the indication information is determined to be one of the following:

[0047] The second time after the first time, wherein the second time is not within any of the at least one DSMW;

[0048] The end time of the DSMW in which the second time occurs, wherein the second time is located within one of the at least one DSMW;

[0049] Wherein, the interval between the first moment and the second moment is greater than or equal to a preset duration.

[0050] In conjunction with the embodiments of the first aspect, in some embodiments, determining the effective time of the indication information based on the first time of receiving the indication information and at least one DSMW includes: if the first time is located in the interval between two adjacent DSMWs in the at least one DSMW, and the time between the first time and the start time of the DSMW after the first time is greater than or equal to a preset duration, determining the effective time as the start time of the DSMW after the first time.

[0051] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes: when there is an interval between two adjacent DSMWs in the at least one DSMW, the terminal ignores the received indication information.

[0052] In conjunction with the embodiments of the first aspect, in some embodiments, the indication information is carried in the signaling that triggers the DSMW, and the indication information is also used to adjust the TA within the DSMW; wherein, the first time interval between the first time and the start time of the DSMW is a preset duration.

[0053] In conjunction with the embodiments of the first aspect, in some embodiments, the preset duration is defined by the protocol or configured by the network device.

[0054] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0055] At the time of effectiveness, adjust TA according to the instruction information;

[0056] In the DSMW most recently after the effective time, an uplink signal is sent according to the adjusted TA, the uplink signal including a sensing signal.

[0057] In conjunction with the embodiments of the first aspect, in some embodiments, the effective time of multiple indication messages is the same, and the adjustment of TA according to the indication messages includes the following:

[0058] Adjust the TA according to the last received instruction among the plurality of instruction messages;

[0059] The accumulated adjustment value is determined based on the multiple indication information, and the TA is adjusted based on the accumulated adjustment value.

[0060] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0061] If the TA timer times out in any of the at least one DSMWs, a sensing signal is sent only according to the TA corresponding to the TA timer.

[0062] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0063] Receive first information sent by the network device, the first information being used to indicate the updated TA; or...

[0064] Send a second message to the network device, the second message being used to request an updated TA;

[0065] The first information is determined based on the sensing signals received by the network device or based on the second information.

[0066] In conjunction with the embodiments of the first aspect, in some embodiments, the terminal does not support a first capability, which is the ability to maintain phase consistency of the transmitted sensing signal within the same DSMW while adjusting the TA within a DSMW.

[0067] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0068] The network device sends capability information, which is used to indicate whether the terminal supports the first capability.

[0069] Secondly, embodiments of this disclosure provide a communication method executed by a network device, the method comprising:

[0070] Send indication information to the terminal, the indication information being used to indicate the adjustment value of timing advance (TA), wherein the first moment the indication information is received and at least one DSMW are used to determine the effective moment of the indication information, wherein the at least one DSMW is a window for sending sensing signals.

[0071] In conjunction with embodiments of the second aspect, in some embodiments, at least one DSMW includes one of the following:

[0072] Multiple periodic DSMWs;

[0073] Semi-persistent multiple DSMWs;

[0074] The network device triggers multiple DSMWs via signaling;

[0075] The network device triggers a DSMW via signaling.

[0076] In conjunction with the second aspect of the embodiments, in some embodiments, the effective time of the indication information is: the start time of the first DSMW located after the first time among the at least one DSMW, and the interval between the first time and the start time of the first DSMW is greater than or equal to a preset duration.

[0077] In conjunction with the second aspect of the embodiments, in some embodiments, the effective time of the indication information is: the start time of the uplink resource in the first DSMW located after the first time in the at least one DSMW, and the interval between the first time and the start time of the uplink resource is greater than or equal to a preset duration.

[0078] In conjunction with the embodiments of the second aspect, in some embodiments, if the first moment is located within a second DSMW of the at least one DSMW, the effective moment of the indication information is one of the following:

[0079] The second time after the first time, wherein the second time is not within any of the at least one DSMW;

[0080] The end time of the DSMW in which the second time occurs, wherein the second time is located within one of the at least one DSMW;

[0081] Wherein, the interval between the first moment and the second moment is greater than or equal to a preset duration.

[0082] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0083] When there is an interval between two adjacent DSMWs in the at least one DSMW, the indication information is not sent.

[0084] In conjunction with the second aspect of the embodiments, in some embodiments, the first moment is located in the interval between two adjacent DSMWs in the at least one DSMW, and the time between the first moment and the start time of the DSMW after the first moment is greater than or equal to a preset duration, and the effective moment is the start time of the DSMW after the first moment.

[0085] In conjunction with the embodiments of the second aspect, in some embodiments, the indication information is carried in the signaling that triggers the DSMW, and the indication information is used to adjust the TA within the DSMW; wherein, the first time interval between the first time and the start time of the DSMW is a preset duration.

[0086] In conjunction with the embodiments of the second aspect, in some embodiments, the preset duration is defined by the protocol or configured by the network device.

[0087] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0088] If the TA timer times out in any of the at least one DSMWs, the terminal sends a sensing signal and determines first information based on the received sensing signal; or, the terminal sends second information, which is used to request an updated TA.

[0089] The first information is sent to the terminal, and the first information is used to indicate the updated TA.

[0090] In conjunction with the embodiments of the second aspect, in some embodiments, the terminal does not support the first capability, which is the ability to maintain phase consistency of the transmitted sensing signal within the same DSMW while adjusting the TA within a DSMW.

[0091] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0092] The terminal sends capability information, which indicates whether the terminal supports the first capability.

[0093] Thirdly, embodiments of this disclosure provide a communication device, wherein the communication device is used to perform the method described in the first aspect or the second aspect.

[0094] Fourthly, embodiments of this disclosure provide a communication system, including a terminal and a network device, wherein,

[0095] The terminal is configured to implement the method as described in the first aspect;

[0096] The network device is configured to implement the method as described in the second aspect.

[0097] Fifthly, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0098] When the instructions are executed on a communication device, the communication device causes the communication device to perform the method as described in the first aspect or the second aspect.

[0099] In a sixth aspect, embodiments of this disclosure provide a program product, including at least one of a program and instructions, wherein when the program and instructions are executed by a communication device, they implement the method described in the first aspect or the second aspect.

[0100] In a seventh aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in alternative implementations of the first and second aspects.

[0101] Eighthly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and second aspects above.

[0102] It is understood that the aforementioned communication devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0103] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0104] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0105] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0106] In the embodiments of this disclosure, "multiple" refers to two or more.

[0107] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0108] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0109] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0110] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0111] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0112] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0113] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0114] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0115] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0116] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0117] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0118] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0119] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0120] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0121] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0122] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0123] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0124] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0125] As shown in Figure 1A, the communication system 100 includes a terminal 101 and a network device 102.

[0126] In some embodiments, a terminal includes, but is not limited to, at least one of the following: a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and a wireless terminal device in a smart home.

[0127] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0128] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system, but is not limited thereto.

[0129] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0130] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0131] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0132] In some embodiments, core network equipment includes network elements with specific functions, such as Access Management Function (AMF) and Service Management Function (SMF).

[0133] Figure 1B is a schematic diagram of an ISAC mode in a communication system 100 according to an embodiment of this disclosure. During the design process of an ISAC system, the service requirements of both communication and sensing need to be considered simultaneously. As shown in Figure 1B, an ISAC system can include different modes. The first type is mono-static sensing, where the same device or node transmits and receives the sensing RS; the second type is bi-static sensing, where different devices or nodes transmit and receive or reflect the sensing RS. Specifically, the above two types of ISAC modes can be further divided into the following six types or six modes:

[0134] Mode 1: Base station monostatic transmission and reception (TRP), as shown by number 1 in Figure 1B. Base station A sends a sensing signal. After the sensing signal passes through the environment or objects in the environment, base station A receives and measures the reflected / scattered waves, such as Sensing RS or Reflected Sensing RS.

[0135] Mode 2: Base station A transmits and base station B receives (TRP-TRP bistatic), as shown by number 2 in Figure 1B. Base station A sends a sensing signal, and after the sensing signal passes through the environment or an object in the environment (sensing target), base station B receives and measures the reflected / scattered wave.

[0136] Mode 3: Terminal transmits to base station (UE-TRP bistatic), as shown by number 3 in Figure 1B. The terminal sends a sensing signal, and after the sensing signal passes through the environment or objects in the environment, the base station receives and measures the reflected / scattered waves.

[0137] Mode 4: Base Station Transmits to UE (TRP-UE bistatic), as shown by number 4 in Figure 1B. The base station transmits a sensing signal, which is then reflected by the object being measured, and the terminal receives and measures the reflected / scattered wave.

[0138] Mode 5: UE monostatic, as shown by number 5 in Figure 1B. The terminal sends a sensing signal, and after the sensing signal passes through the environment or objects in the environment, the terminal receives and measures the reflected / scattered waves.

[0139] Mode 6: Terminal A transmits and B receives (UE-UE bistatic), as shown by the number 6 in Figure 1B. Terminal A sends a sensing signal, and after the sensing signal passes through the environment or objects in the environment, Terminal B receives and measures the reflected / scattered waves.

[0140] In some embodiments, the sensing transmitter in the ISAC can be a terminal 101 or a network device 102 such as a base station, the sensing target can be a person or a vehicle, and the sensing receiver can be a terminal 101 or a network device 102 such as a base station.

[0141] The sensing transmitter sends a sensing signal, and the sensing receiver receives the sensing signal reflected or scattered by the sensing target. It can also measure the sensing signal to obtain Doppler frequency shift information, so as to facilitate the sensing of the sensing target.

[0142] In some embodiments, the sensing target is generally not a network device or terminal and does not have the function of receiving, processing, or transmitting signals, but it can reflect / scatter signals after they arrive. The network device or terminal needs to determine the location of the sensing target by the signal reflected by the sensing target, or by the changes the sensing target makes to existing signals in the sensing environment when it enters the wireless sensing network (e.g., blocking existing LOS paths between transceivers, blocking existing NLOS paths reflected from known environmental targets to the receiver). In sensing services, in addition to calculating the location of the sensing target, it is also necessary to calculate its velocity. The sensing receiver needs to measure the phase-coherent sensing signal over a certain time period to obtain Doppler frequency shift information, and then use this Doppler frequency shift information to calculate the velocity of the sensing target.

[0143] In some embodiments, as shown in FIG1B, the communication system 100 may further include a sensing network function or sensing function (SF), which may be a sensing server in the network, a sensing function control node, or a network element in the core network equipment, and may be used for sensing information storage, complex sensing calculation, sensing resource configuration, etc.

[0144] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0145] The following embodiments of this disclosure can be applied to the communication system 100 or some of the main bodies shown in FIG1A or FIG1B, but are not limited thereto. The main bodies shown in FIG1A or FIG1B are illustrative. The communication system may include all or some of the main bodies in FIG1A or FIG1B, or may include other main bodies other than those in FIG1A or FIG1B. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0146] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0147] In some implementations, a common method for configuring sensing signal resources in an ISAC system is as follows. Taking the Orthogonal Frequency Division Multiplexing (OFDM) signal waveform as an example, the time resource configuration of the sensing signal mainly involves three parameters: the update period of the sensing measurement data, the duration of the sensing frame, and the sensing OFDM symbol interval; which are similar to the parameters in a traditional pulse radar: the data sampling interval, the radar frame duration, and the pulse repetition period.

[0148] As shown in Figure 1C, the sensing OFDM symbol interval is the time interval between adjacent OFDM symbols occupied by the sensing signal, denoted as T in the figure. s The sensing frame duration refers to the time span of the sensing signal corresponding to one sensing signal processing operation, often referred to as the coherent processing interval (CPI), as shown by T in the figure. f The update period of the sensing measurement data refers to the time interval between two consecutive sensing signal processing operations, as shown by T in the case of Figure 1C. u .

[0149] As shown in Figure 1D, taking the OFDM signal waveform as an example, frequency resource configuration mainly involves two parameters: bandwidth B and sensing subcarrier spacing Δf. The sensing subcarrier spacing refers to the frequency interval between adjacent subcarriers occupied by the sensing signal.

[0150] In some implementations, uplink power control in traditional communication networks is divided into closed-loop power control and open-loop power control. Open-loop power control involves the terminal obtaining the path loss based on the downlink reference signal, and then calculating the uplink transmission power using the uplink power calculation formula after path loss compensation. Closed-loop power control, compared to open-loop power control, adds the step of the base station sending a power control command, which the terminal then uses to determine the uplink transmission power. Downlink power control is relatively simple; generally, the base station controls the downlink signal transmission power itself, or, if the base station has a defined power offset configuration for the downlink transmission signal, it determines the transmission power of the signal based on its configured power offset.

[0151] In some implementations, to obtain Doppler frequency shift information for calculating the velocity of a sensed target, the sensing receiver needs to measure the sensed signal over a certain period to obtain Doppler frequency shift information. To better obtain the Doppler frequency shift measurement results of the sensed signal, one method for determining the sensing signal transmission power is to transmit the sensed signal at a constant transmission power during the time period (DSMW) when the sensing receiver measures the sensed signal to obtain the Doppler frequency shift result, thus better ensuring the phase consistency of the transmitted sensed signal. From a hardware perspective, when the transmitting end adjusts the transmission power, the power amplifier (PA) parameters of the transmitter need to be adjusted, which may cause a phase abrupt change in the transmitted signal. If a phase abrupt change occurs in the sensed signal within the DSMW corresponding to a certain Doppler measurement result at the sensing receiver, the measured Doppler frequency shift will be inaccurate, leading to inaccurate velocity calculation results for the sensed target.

[0152] In some implementations, in mobile communication networks, timing advance (TA) is used to control the timing of uplink data transmission by the terminal. The purpose is to ensure that uplink transmissions from all terminals at different locations are received synchronously at the base station. In RRC Connected state, the base station is responsible for maintaining the timing advance to keep the terminal physical layer synchronized. Serving cells with uplinks applying the same timing advance and using the same timing reference cell are grouped into Timing Advance Groups (TAGs). Each TAG contains at least one serving cell configured with an uplink, and the mapping from each serving cell to a TAG is configured by RRC. In TA update scenarios, the TA update command triggers the terminal to restart a TAG-specific timer. This timer indicates whether the physical layer can be synchronized: when the timer is running, the physical layer is considered synchronized; otherwise, the physical layer is considered asynchronous. In asynchronous cases, the terminal can only perform uplink transmissions MSG1 or MSGA.

[0153] In some implementations, to ensure phase consistency of sensing signals within a DSMW, different sensing signals within the DSMW also maintain the same time interval. Adjusting the timing shift (TA) may affect the positions of different sensing signals within the DSMW in the time domain, thus impacting their phase consistency. When adjusting the TA, if the terminal wants to ensure phase consistency of the sensing signals transmitted within the DSMW before and after the TA adjustment, the terminal may need additional hardware processing to determine the phase of the sensing signals after the TA adjustment, requiring additional terminal capabilities. It is uncertain whether a terminal with sensing signal transmission capabilities possesses this additional capability.

[0154] For terminals without this additional capability, adjusting the TA within a DSMW may affect the phase continuity of the sensed signals transmitted by the terminal. Therefore, it is necessary to determine how the TA should be adjusted or updated when the terminal is configured or DSMW is triggered.

[0155] Figure 2A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2A, the communication method of this embodiment includes:

[0156] In step S2101, terminal 101 sends capability information to network device 102.

[0157] In some embodiments of this disclosure, terminal 101 can act as a sensing transmitter in an ISAC to transmit sensing signals (Sensing RS). In this case, the sensing receiver can be either another terminal or network device 102.

[0158] In some embodiments, capability information is used to indicate whether terminal 101 supports a first capability.

[0159] The first capability is the ability to maintain phase consistency of the transmitted sensing signal within the same DSMW while adjusting the TA within the same DSMW.

[0160] In some embodiments, for a terminal 101 that supports the first capability, the TA can be adjusted within the DSMW without affecting the phase consistency of the transmitted sensing signal.

[0161] In one example, after network device 102 sends a TA adjustment command to terminal 101, terminal 101 can send uplink signals according to the adjusted TA. As shown in Figure 2B, when there is no TA adjustment command, terminal 101 periodically sends sensing signals within the DSMW. The phase of the sensing signal at each sensing signal transmission occasion is recorded as p1, p2, and p3, respectively. If a TA adjustment command is received and the TA increases, terminal 101 will synchronously adjust the phase of the transmitted sensing signal when sending the sensing signal, so that the phase of the sensing signal undergoes a phase adjustment amount p_delta that is linearly related to the TA adjustment amount.

[0162] In this example, p_delta = 2*pi*fc*(TA2-TA1), where TA2 represents the adjusted TA, TA1 represents the original TA, fc is the carrier frequency of the sensed signal, and pi is pi.

[0163] In some embodiments, for terminals that do not support the first capability, they do not support adjusting the phase of the transmitted sensing signal while adjusting the TA within the DSMW. Therefore, the TA can be adjusted at an appropriate time according to the description of steps S2102 to S210 in the following embodiments, so as not to affect the phase consistency of the transmitted sensing signal.

[0164] In some embodiments, network device 102 receives capability information to determine whether terminal 101 has the capability to adjust TA during the DSMW period, so that network device 102 can determine the behavior of terminal 101 in sending sensing signals or other uplink signals during the DSMW.

[0165] In step S2102, network device 102 sends instruction information to terminal 101.

[0166] In some embodiments, the indication information is used to indicate the adjustment value of the timing advance (TA).

[0167] In some embodiments, the indication information may be a TA adjustment command.

[0168] In some embodiments, network device 102 may send instruction information to terminal 101 through Media Access Control Control Element (MAC CE).

[0169] In some embodiments, terminal 101 receives instruction information.

[0170] In some embodiments, the indication information may carry an adjustment value or change value that instructs the terminal 101 to perform TA adjustment. This adjustment value is used by the terminal 101 to determine the TA value after adjustment, as detailed in the following embodiments.

[0171] In step S2103, terminal 101 determines the effective time of the indication information based on the first moment of receiving the indication information and at least one DSMW.

[0172] In some embodiments, the first moment refers to the moment when the information is received. The first moment can be a point in time, a time slot, or a symbol.

[0173] In some embodiments, at least one DSMW may be a window configured or triggered by network device 102 for terminal 101 to send sensing signals, and also for sensing receiver to receive and measure sensing signals.

[0174] In some embodiments, at least one DSMW includes one of the following:

[0175] Multiple periodic DSMWs;

[0176] Semi-persistent multiple DSMWs;

[0177] Network device 102 triggers multiple DSMWs via signaling;

[0178] Network device 102 triggers a DSMW via signaling.

[0179] Optionally, network device 102 can configure periodic DSMWs for terminal 101, such as configuring the period or period offset of the DSMW. Figures 2C and 2D illustrate two types of periodic DSMWs, where the period is T. In Figure 2D, an interval (gap) is set between adjacent DSMWs, and the length of the gap is denoted as T0.

[0180] Optionally, network device 102 can configure various periodic DSMWs for terminal 101, using signaling to activate or trigger semi-persistent DSMWs. Figures 2E to 2F illustrate two types of semi-persistent DSMWs.

[0181] Optionally, network device 102 can trigger multiple DSMWs via signaling. Figures 2G to 2H illustrate multiple DSMWs triggered by two different signaling methods.

[0182] Optionally, network device 102 can trigger one or more DSMWs via signaling, as illustrated in Figure 2I, which shows a single DSMW triggered by signaling.

[0183] In some embodiments, determining the effective time of the indication information based on the time-domain relationship between the first time and the DSMW can have several different implementations.

[0184] In the first embodiment, step S2103 includes the following steps:

[0185] In step S2103-11, terminal 101 determines the effective time of the indication information as the start time of the first DSMW based on the first DSMW located after the first time among at least one DSMW. The interval between the first time and the start time of the first DSMW is greater than or equal to a preset duration.

[0186] In this step, the first DSMW can be the most recent DSMW after the first moment, and the interval between the first moment and the first moment satisfies the preset duration.

[0187] In this step, assuming the first time point is t1, after receiving the indication information at t1, terminal 101 can assume that the effective time of the indication information is located at the start time of the nearest DSMW after t1. Furthermore, this start time needs to have an interval of at least a preset duration (denoted as T1) between it and t1. For example, the start time of the first DSMW is not earlier than (t1+T1).

[0188] In this step, the preset duration can be defined by the protocol or configured by the network device. For example, the preset duration is the shortest time required for terminal 101 to demodulate and obtain TA. As another example, the preset duration can be the duration related to the HARQ-ACK feedback corresponding to the indication information, such as T1 = feedback delay from the indication information to its corresponding HARQ-ACK + T', where T' can be defined by the protocol or configured by the base station.

[0189] In one example, as shown in Figure 2J, TA1...TA6 represent indication information at different times, i.e., TA adjustment commands.

[0190] Taking TA1, TA2, and TA3 as examples, the first moment of these three indication messages is within DSMW1, and the effective time of these three indication messages is the same, which is the start time t of the nearest DSMW (i.e., DSMW2) after the first moment. Among them, the interval between the start time of DSMW2 and the first moment of these three indication messages is greater than or equal to a preset duration.

[0191] Taking TA4 as an example, the first moment of the indication information is within DSMW1. However, since the interval between the start time of DSMW2 and the first moment is less than the preset duration, and the interval between the start time of DSMW3 and the first moment is greater than or equal to the preset duration, the effective time of the indication information of TA4 is the start time of DSMW3.

[0192] Based on a similar description above, the effective time of the TA5 instruction is the start time of DSMW3, and the effective time of the TA6 instruction is the start time of DSMW4.

[0193] In the second embodiment, step S2103 includes the following steps:

[0194] In steps S2103-21, terminal 101 determines the effective time of the indication information as the start time of the uplink resource in the first DSMW, based on the first DSMW located after the first time. The interval between the first time and the start time of the uplink resource is greater than or equal to a preset duration.

[0195] In this step, the first DSMW can refer to the first DSMW of the above embodiment.

[0196] In this step, the start time of the uplink resource can refer to the start time of the earliest uplink resource in the first DSMW.

[0197] In this step, uplink resources may include channels through which terminal 101 transmits sensing signals or communication signals, or time-frequency resources allocated as uplink resources by network device 102.

[0198] In this step, assuming the first time point is t1, after receiving the indication information at t1, terminal 101 can assume that the effective time of the indication information is located at the start time of the uplink resources in the first DSMW after t1. Furthermore, this start time needs to have an interval of at least a preset duration T1 between it and t1. For example, the start time of the uplink resources in the first DSMW is not earlier than (t1+T1).

[0199] In this step, the preset duration can be defined by the protocol or configured by the network device. For example, the preset duration is the shortest time required for terminal 101 to demodulate and obtain TA. As another example, the preset duration can be the duration related to the HARQ-ACK feedback corresponding to the indication information, such as T1 = feedback delay from the indication information to its corresponding HARQ-ACK + T', where T' can be defined by the protocol or configured by the base station.

[0200] In one example, as shown in Figure 2K, TA1...TA6 represent indication information at different times, i.e., TA adjustment commands.

[0201] Taking TA1, TA2, and TA3 as examples, the first moment of these three indication messages is within DSMW1. The effective time of these three indication messages is the same, which is the start time of the first uplink resource in the nearest DSMW (i.e., DSMW2) after the first moment. Among them, the interval between the start time of the first uplink resource in DSMW2 and the first moment of these three indication messages is greater than or equal to a preset duration.

[0202] For TA4, since the time interval between the start time of the first uplink resource in DSMW 2 and the first time corresponding to TA4 is less than T, the effective time of TA4 is not the start time of the first uplink resource in DSMW 2, but the start time of the first uplink resource in DSMW 3.

[0203] Based on a similar description above, the effective time of the TA5 indication message is the start time of the first uplink resource in DSMW3, and the effective time of the TA6 indication message is the start time of the first uplink resource in DSMW4.

[0204] In the third embodiment, step S2103 includes the following steps:

[0205] Step S2103-31: If the first moment is within the second DSMW of at least one DSMW, terminal 101 determines the effective time of the indication information as one of the following:

[0206] The second time after the first time, the second time is not within any DSMW in at least one DSMW;

[0207] The second time point is the end time of the DSMW in which it is located, and the second time point is located within one of at least one DSMW.

[0208] The interval between the first moment and the second moment is greater than or equal to the preset duration T1.

[0209] In this step, assume the first time is t1, which is within the second DSMW; the second time is denoted as (t1+T1). If (t1+T1) is not within any DSMW, the indication information takes effect at time (t1+T1). If (t1+T1) is within a DSMW, the indication information takes effect at the end time of that DSMW.

[0210] In this step, the preset duration can be defined by the protocol or configured by the network device. For example, the preset duration is the shortest time required for terminal 101 to demodulate and obtain TA. As another example, the preset duration can be the duration related to the HARQ-ACK feedback corresponding to the indication information, such as T1 = feedback delay from the indication information to its corresponding HARQ-ACK + T', where T' can be defined by the protocol or configured by the base station.

[0211] In some embodiments, terminal 101 may ignore the received indication information or not expect to receive indication information. For example:

[0212] In one example, when there is a gap between two adjacent DSMWs in at least one DSMW, the terminal does not expect to receive indication information.

[0213] Alternatively, in this example, if a gap exists, the first moment of the indication message is located within the interval between two adjacent DSMWs, and the time between the first moment and the start time of the DSMW following the first moment is greater than or equal to a preset duration. That is, the indication message is preferably sent within a gap period T1 hours earlier than the start time of the DSMW. In this case, the effective time of the indication message is the start time of the DSMW following that first moment.

[0214] In another example, for a single DSMW triggered by signaling, terminal 101 does not expect to receive indication information. If network device 102 sends indication information within that DSMW, terminal 101 can ignore the indication information.

[0215] In some embodiments, in a scenario where a DSMW is triggered by signaling, indication information can be sent via the signaling that triggers the DSMW. For example, the indication information is carried in the signaling that triggers a DSMW, and the indication information is used to adjust the TA within that DSMW; wherein, the first moment is spaced from the start moment of a DSMW by a preset duration.

[0216] In this embodiment, the preset duration T1 can be found in the description of the foregoing embodiment.

[0217] Step S2104: At the effective time, terminal 101 adjusts TA according to the instruction information.

[0218] In some embodiments, after the terminal 101 determines the effective time of the indication information, it can apply the TA adjustment command to perform TA adjustment at the effective time.

[0219] In some embodiments, terminal 101 can determine the adjusted TA value based on the adjustment value in the effective instruction information and the TA value before adjustment.

[0220] In some embodiments, if there are multiple indication messages and the multiple indication messages take effect at the same time, such as TA1 to TA3 in Figure 2J or Figure 2K, the terminal 101 can determine the TA adjustment command of the application according to the following two examples.

[0221] In one example, terminal 101 adjusts TA based on the last received instruction among multiple instruction messages.

[0222] In this example, referring to the example in Figure 2J, when TA1 to TA3 are received, the adjusted TA can be determined based on the adjustment value in TA3.

[0223] In this example, the TA adjustment value indicated by the instruction information sent by network device 102 should be determined based on the TA value applied by terminal 101 before the adjustment.

[0224] In another example, terminal 101 determines an accumulated adjustment value based on multiple indications and adjusts TA based on the accumulated adjustment value.

[0225] In this example, based on the strength of Figure 2J, when TA1 to TA3 are received, the cumulative value is determined based on the adjustment values ​​in the multiple indication messages of TA1 to TA3, and the adjusted TA is determined according to the cumulative value.

[0226] In this example, the indication information sent by network device 102 can be determined based on the TA value applied by terminal 101 before adjustment and the first few indication information among multiple indication information. For example, when network device 102 sends TA3, it needs to determine the adjustment value carried in TA3 based on the TA value applied by terminal 101 before adjustment, the adjustment value in TA1, and the adjustment value in TA2.

[0227] In step S2105, in the DSMW most recently after the effective time, terminal 101 sends an uplink signal according to the adjusted TA.

[0228] In some embodiments, the uplink signal includes a sensing signal and a communication signal other than the sensing signal.

[0229] In some embodiments, after adjusting the TA, terminal 101 can transmit a sensing signal based on the adjusted TA in the corresponding DSMW. The sensing receiver can be either a terminal or a network device.

[0230] In some embodiments, the terminal 101 adjusts the TA based on a determined effective time, ensuring that the TA adjustment process does not occur within any DSMW or before uplink resources are transmitted in any DSMW. For example, if the effective time is the start time of a DSMW, the terminal 101 has already completed the TA adjustment before uplink resources begin transmission, and no further TA adjustment is needed within that DSMW, thus not affecting the phase consistency of the transmitted sensing signal within that DSMW. Alternatively, if the effective time is the end time of a DSMW, the terminal 101 has already completed the TA adjustment before uplink resources begin transmission in the next DSMW, and no further TA adjustment is needed within that next DSMW, thus not affecting the phase consistency of the transmitted sensing signal within that next DSMW. Therefore, the process of the terminal 101 adjusting the TA will not affect the phase consistency of the sensing signal in DSMWs after the effective time.

[0231] In some embodiments, after adjusting the TA, the terminal 101 can send communication signals to the network device 102 based on the adjusted TA in the corresponding DSMW.

[0232] In this embodiment, the communication signal refers to other uplink signals or uplink channels besides the sensing signal.

[0233] In step S2106, if the TA timer times out in any DSMW of at least one DSMW, the terminal 101 sends a sensing signal only according to the TA corresponding to the TA timer.

[0234] In some embodiments, if the TA timer in a certain DSMW times out, it indicates asynchrony, and the terminal 101 needs to stop sending communication signals other than the sensing signal.

[0235] In some embodiments, the timeout of the TA timer does not affect the transmission of the sensing signal, and the terminal 101 can still transmit the sensing signal.

[0236] In this embodiment, since the TA timer corresponding to the TA may be invalid at this time, if the terminal 101 continues to use the TA to send the sensing signal, the sensing signal may not be aligned with the time domain symbol boundary of the network device 102. For the network device 102 receiving the sensing signal, it is necessary to use a search window with a larger time domain range near the sensing signal to receive the sensing signal to ensure accurate reception of the sensing signal.

[0237] In step S2107, terminal 101 sends second information to network device 102.

[0238] In some embodiments, the second information is used to request an updated TA.

[0239] In some embodiments, in the scenario where the TA timer expires as described above, terminal 101 can request TA update from network device 102 by sending second information.

[0240] In some embodiments, terminal 101 may send second information via MSG1 or MSGA during the random access process to obtain an updated TA command from network device 102.

[0241] In some embodiments, network device 102 receives second information.

[0242] In step S2108, network device 102 sends first information to terminal 101.

[0243] In some embodiments, the first information is used to indicate the updated TA.

[0244] In some embodiments, network device 102 may send first information after receiving second information.

[0245] In some embodiments, the first information is determined based on sensing signals received by the network device.

[0246] For example, if the terminal cannot send a communication signal when the TA timer expires, the network device 102 corresponding to the serving cell of the terminal can determine the TA that matches the terminal 101 by receiving the sensing signal sent by the terminal 101, and send the updated TA command to the terminal.

[0247] In some embodiments, terminal 101 receives first information.

[0248] In some embodiments, after receiving the first information, the terminal 101 needs to determine the effective time of the first information according to the aforementioned method for determining the effective time of the indication information, and then apply the TA indicated by the first information after the first information takes effect.

[0249] In some embodiments, after the first information takes effect, the terminal 101 may resume the transmission of uplink communication signals or channels based on the TA indicated by the first information.

[0250] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0251] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0252] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0253] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".

[0254] In some embodiments, the terms “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, and “RAN-based” can be used interchangeably.

[0255] In some embodiments, the terms "synchronization signal (SS)," "synchronization signal block (SSB)," "reference signal (RS)," "pilot," and "pilot signal" can be used interchangeably.

[0256] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, and “transmission time interval (TTI)” can be used interchangeably.

[0257] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0258] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0259] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0260] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0261] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data and / or instructions received; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0262] In some embodiments, if an arrow in the interaction diagram representing the sending of information, signaling, etc. from one subject to another passes through other subjects, it can be interpreted as the information being forwarded from one subject to another via other subjects, or it can be interpreted as the information being sent from one subject to another without passing through other subjects.

[0263] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2108. For example, steps S2102 and S2103 may be implemented as independent embodiments, but are not limited thereto.

[0264] In some embodiments, steps S2104 and S2105 are optional, and one of them may be performed in different embodiments, or one or more of these steps may be omitted or substituted in different embodiments.

[0265] In some embodiments, at least one of steps S2106, S2107, and S2108 may be optionally omitted or substituted in different embodiments.

[0266] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0267] Figure 3A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 3A, the communication method of this embodiment includes:

[0268] In step S3101, network device 102 sends instruction information to terminal 101.

[0269] In some embodiments, the implementation of step S3101 can refer to the implementation of step S2102 in FIG2A, and will not be repeated here.

[0270] In step S3102, terminal 101 determines the effective time of the indication information based on the first moment of receiving the indication information and at least one DSMW.

[0271] In some embodiments, the implementation of step S3102 can refer to the implementation of step S2103 in FIG2A, and will not be repeated here.

[0272] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0273] Figure 3B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 3B, the communication method of this embodiment includes:

[0274] In step S3201, network device 102 sends instruction information to terminal 101.

[0275] In some embodiments, the implementation of step S3201 can refer to the implementation of step S2102 in FIG2A, and will not be repeated here.

[0276] In step S3202, terminal 101 determines the effective time of the indication information based on the first moment of receiving the indication information and at least one DSMW.

[0277] In some embodiments, the implementation of step S3202 can refer to the implementation of step S2103 in FIG2A, and will not be repeated here.

[0278] In step S3203, at the effective time, terminal 101 adjusts TA according to the instruction information.

[0279] In some embodiments, the implementation of step S3203 can refer to the implementation of step S2104 in FIG2A, and will not be repeated here.

[0280] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0281] Figure 3C is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 3C, the communication method of this embodiment includes:

[0282] In step S3301, network device 102 sends instruction information to terminal 101.

[0283] In some embodiments, the implementation of step S3301 can refer to the implementation of step S2102 in FIG2A, and will not be repeated here.

[0284] In step S3302, terminal 101 determines the effective time of the indication information based on the first moment of receiving the indication information and at least one DSMW.

[0285] In some embodiments, the implementation of step S3302 can refer to the implementation of step S2103 in FIG2A, and will not be repeated here.

[0286] In step S3303, if the TA timer times out in any DSMW of at least one DSMW, the terminal 101 sends a sensing signal according to the TA.

[0287] In some embodiments, the implementation of step S3303 can refer to the implementation of step S2106 in FIG2A, and will not be repeated here.

[0288] In step S3304, network device 102 sends the first information to terminal 101.

[0289] In some embodiments, the implementation of step S3304 can refer to the implementation of step S2108 in FIG2A, and will not be repeated here.

[0290] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0291] The methods in this disclosure may include the following embodiments:

[0292] Example 1: For cases where DSMWs are periodic, semi-persistent, or multiple consecutive (e.g., multiple consecutive ones triggered by a triggering signaling).

[0293] Example 1-1:

[0294] For a TA command received at time t1, it takes effect from the start time of the target DSMW. The start time of the target DSMW is no earlier than t1 + T1; the duration T1 is reserved here mainly for the minimum time required for the UE to demodulate the TA and prepare the TA command. The duration T1 can be defined by the protocol or configured by the base station. The duration T1 can also be the duration related to the time of the HARQ-ACK feedback corresponding to the TA command. For example, T1 = the feedback delay from the TA command to its corresponding HARQ-ACK + T', where the duration T' can be defined by the protocol or configured by the base station.

[0295] Optionally, the TA command corresponds to the instruction information in the foregoing embodiments. The target DSMW corresponds to the first DSMW in the foregoing embodiments.

[0296] Alternatively, this embodiment can refer to the embodiment corresponding to Figure 2J.

[0297] Examples 1-2:

[0298] For a TA command received at time t1, the start time of the earliest uplink resource in the target DSMW takes effect. The start time of the earliest uplink resource in the target DSMW is no earlier than t1 + T1; the duration T1 is reserved here mainly for the minimum duration required for the UE to demodulate the TA and prepare the TA command. The duration T can be defined by the protocol or configured by the base station. The duration T1 can also be the duration related to the time of the HARQ-ACK feedback corresponding to the TA command. For example, T1 = the feedback delay from the TA command to its corresponding HARQ-ACK + T', where the duration T' can be defined by the protocol or configured by the base station. The uplink resources include channels for sensing signals or communication signals transmitted by the UE or time-frequency resources allocated by the network for uplink.

[0299] Alternatively, this embodiment can refer to the embodiment corresponding to Figure 2K.

[0300] Examples 1-3:

[0301] For a TA command received at time t1 within a DSMW, if the TA command is not within any DSMW at time t1+T, then the TA command takes effect at time t1+T. If the TA command is within a DSMW at time t1+T, then the TA command takes effect at the end of that DSMW.

[0302] Examples 1-4:

[0303] In cases where there is a gap between DSMWs, another feasible solution is that the UE does not expect to receive a TA command within the DSMW. If the base station sends a TA command within the DSMW, the UE will ignore the TA. TA commands can only be sent during a gap period T1 hours earlier than the start time of the DSMW.

[0304] Example 2: For cases where a single or multiple DSMWs are triggered by a triggering signaling.

[0305] Example 2-1:

[0306] Within the DSMW triggered by the triggering signaling, the UE does not expect to receive a TA. If the base station sends a TA command within the DSMW, the UE will ignore the TA.

[0307] Example 2-2:

[0308] For a TA command received at time t1 within a DSMW, if time t1+T1 is not within any DSMW, then the TA command takes effect at time t1+T1.

[0309] Examples 2-3:

[0310] Triggering signaling can carry a TA update command to control the TA within the DSMW triggered by the triggering signaling. In this case, the time-domain interval between the triggering signaling and the start position of the triggered DSMW is greater than or equal to the minimum interval required for the TA command to take effect, or the time-domain interval between the triggering signaling and the first uplink channel of the triggered DSMW is greater than or equal to the minimum interval required for the TA command to take effect.

[0311] Examples 2-4:

[0312] If multiple TA commands have the same start time:

[0313] The UE determines the TA for Sensing RS and other uplink channels after the effective start time based on the last received TA command among multiple TA commands with the same effective start time. In this case, the TA sent by the base station is required to be a TA adjustment value determined based on the TA value of the UE's current application.

[0314] Alternatively, the UE determines the TA for Sensing RS and other uplink channels from the effective start time based on the TA adjustment value, which includes at least the sum of the multiple TA commands. In this case, the TA transmitted by the base station is required to be a TA adjustment value determined based on the TA currently used by the UE plus an earlier transmitted TA adjustment value.

[0315] Alternatively, for the examples in Figures 2J to 2K, the TA applied within DSMW 2 may be determined according to TA commands that include at least TA 1, TA 2, and TA 3 to determine the TA of the uplink signal (including the Sensing RS) in DSMW 2. Alternatively, the TA applied within DSMW 2 may be determined solely based on TA 3 to determine the TA of the uplink signal (including the Sensing RS) in DSMW 2.

[0316] Examples 2-5:

[0317] During the DSMW period, if the UE's TA timer expires, the UE will stop transmitting uplink communication channels. However, this TA timer expiration does not affect the transmission of Sensing RS. Since the original TA may be invalid at this time, if the UE continues to use the TA to transmit Sensing RS, it may cause the Sensing RS to be out of alignment with the time domain symbol boundary of the base station. This requires the base station receiving the Sensing RS to use a larger time domain search window near the Sensing RS to receive the Sensing RS signal in order to ensure accurate reception of the Sensing RS.

[0318] If the TA timer expires and the UE is unable to transmit the communication channel, the serving cell of the UE can determine the TA that matches the UE by receiving the Sensing RS sent by the UE, and send the TA update command that needs to be sent to the UE.

[0319] Examples 2-6:

[0320] If a TA timer expires in DSMW, in addition to the base station sending an updated TA command to the UE based on Sensing RS as in Examples 2-5, the UE can also send MSG1 or MSG A to the base station to obtain a new TA command from the base station. However, even if a new TA command is obtained from the base station, the effective date of the TA still needs to be determined according to the methods described in Examples 1 and 2-1 above.

[0321] Examples 2-7:

[0322] In the case where a TA timer expires during the DSMW period and a new TA command is obtained during the DSMW, the UE will resume uplink communication channel transmission after the new TA takes effect.

[0323] Example 3:

[0324] For terminals supporting the first capability, the terminal can adjust the TA during the DSMW period without affecting the phase consistency of the Sensing RS. After the base station sends a TA adjustment command to the UE, the UE can transmit uplink signals according to the adjusted TA. Figure 2B illustrates how the uplink signal phase is determined when adjusting the TA for a UE with this capability. When the TA is not adjusted, the UE transmits periodic Sensing RS with phases p1, p2, and p3 in each occasion. If a TA update occurs and the TA increases, the UE's phase also undergoes a phase adjustment (p_delta) linearly related to the corresponding TA adjustment amount when transmitting Sensing RS. For example, p_delta = 2 * pi * fc * (TA2 - TA1).

[0325] The UE can report to the base station whether it has the ability to adjust TA during the DSMW period, so that the base station can determine the behavior of the UE in sending Sensing RS and other uplink signals during the DSMW.

[0326] Example 4:

[0327] The TA update methods in Examples 1 and 2 are applicable to sensing signal channels, but not to communication channels. That is, for communication channels, upon receiving a TA command, the uplink communication channel TA value will be adjusted according to the method of applying TA to the communication channel, without being limited by DSMW. The typical method for adjusting the uplink communication channel TA value according to the method of applying TA to the communication channel is as follows:

[0328] If a TA command is received at time t1, the TA command will be applied to the uplink communication channel at time t1+T1 and thereafter. The time T1 is reserved here mainly for the minimum time required for the UE to demodulate the TA and prepare the TA command. The time T1 can be defined by the protocol or configured by the base station. The time T1 can also be the time related to the time of the HARQ-ACK feedback corresponding to the TA command. For example, T = the feedback delay from the TA command to its corresponding HARQ-ACK + T', where the time T' can be defined by the protocol or configured by the base station.

[0329] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0330] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0331] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0332] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0333] Figure 4A is a schematic diagram of a terminal according to an embodiment of this disclosure. Terminal 4100 is used to execute any of the above methods. In some embodiments, as shown in Figure 4A, terminal 4100 may include at least one of a transceiver module 4101, a processing module 4102, etc. In some embodiments, the transceiver module 4101 is used to receive indication information sent by a network device, the indication information indicating an adjustment value for a timing advance (TA); the processing module 4102 is used to determine the effective time of the indication information based on a first moment when the indication information is received and at least one Doppler frequency shift measurement window (DSMW), wherein the at least one DSMW is a window for the terminal to send sensing signals, and the sensing signals are used to perform sensing measurements on a sensing target.

[0334] Optionally, the transceiver module 4101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal in any of the above methods, which will not be described in detail here. Optionally, the processing module 4102 is used to perform at least one of the other steps performed by the terminal in any of the above methods, which will not be described in detail here.

[0335] Figure 4B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. The network device 4200 is used to perform any of the above methods. In some embodiments, as shown in Figure 4B, the network device 4200 may include at least one of a transceiver module 4201, a processing module 4202, etc. In some embodiments, the transceiver module 4201 is used to send indication information to a terminal, the indication information indicating an adjustment value for a timing advance (TA), wherein a first moment when the indication information is received and at least one timing delay mechanism (DSMW) are used to determine the effective moment of the indication information, wherein the at least one DSMW is a window for transmitting sensing signals, and the sensing signals are used to perform sensing measurements on a sensing target.

[0336] Optionally, the transceiver module 4201 is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device in any of the above methods, which will not be described in detail here. Optionally, the processing module 4202 is used to perform at least one of the other steps performed by the network device in any of the above methods, which will not be described in detail here.

[0337] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0338] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0339] In some embodiments, the processing module can be interchanged with the processor, and the transceiver module can be interchanged with the transceiver.

[0340] Figure 5A is a schematic diagram of the structure of the communication device 5100 proposed in an embodiment of this disclosure. The communication device 5100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 5100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0341] As shown in Figure 5A, the communication device 5100 is used to execute any of the above methods. In some embodiments, the communication device 5100 includes one or more processors 5101. The processor 5101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 5100 is used to execute any of the above methods. Optionally, one or more processors 5101 are used to invoke instructions to cause the communication device 5100 to execute any of the above methods.

[0342] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 performs at least one of the communication steps such as sending and / or receiving in the above-described method, and the processor 5101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0343] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data and / or instructions. Optionally, one or more processors 5101 are used to invoke instructions stored in the memory 5103 to cause the communication device 5100 to perform any of the above methods. Optionally, all or part of the memory 5103 may also be located outside the communication device 5100. In an optional embodiment, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5103 and can be used to receive data and / or instructions from the memory 5103 or other devices, and can be used to send data and / or instructions to the memory 5103 or other devices. For example, the interface circuit 5104 can read data and / or instructions stored in the memory 5103 and can be used to send data and / or instructions to the memory 5103 or other devices. For example, the interface circuit 5104 can read data and / or instructions stored in the memory 5103 and send the data and / or instructions to the processor 5101.

[0344] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in this disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0345] Figure 5B is a schematic diagram of the structure of chip 5200 according to an embodiment of this disclosure. For cases where the communication device 5100 can be a chip or a chip system, the schematic diagram of chip 5200 shown in Figure 5B can be referred to, but is not limited thereto.

[0346] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.

[0347] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 5200 further includes one or more memories 5203 for storing data and / or instructions. Optionally, all or part of the memories 5203 may be located outside of chip 5200. Optionally, the interface circuit 5202 is connected to the memories 5203, and the interface circuit 5202 can be used to receive data and / or instructions from the memories 5203 or other devices, and the interface circuit 5202 can be used to send data and / or instructions to the memories 5203 or other devices. For example, the interface circuit 5202 can read data and / or instructions stored in the memories 5203 and send the data and / or instructions to the processor 5201.

[0348] In some embodiments, the interface circuit 5202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 5202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 5202 performs data and / or instruction interaction between the processor 5201, the chip 5200, the memory 5203, or the transceiver device. In some embodiments, the processor 5201 performs at least one of the other steps.

[0349] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0350] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 5100, cause the communication device 5100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0351] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by the communication device 5100, cause the communication device 5100 to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0352] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods. Industrial applicability

[0353] After receiving the instruction to adjust the TA, the terminal can determine the appropriate effective time based on the DSMW and the time of receiving the instruction, so that the terminal can adjust the TA at the appropriate time to avoid affecting the phase consistency of the sensing signal transmitted in the DSMW.

Claims

1. A communication method, executed by a terminal, the method comprising: Receive indication information sent by the network device, the indication information being used to indicate the adjustment value of the timing advance (TA); The effective time of the indication information is determined based on the first moment of receiving the indication information and at least one Doppler frequency shift measurement window (DSMW), wherein the at least one DSMW is a window through which the terminal sends a sensing signal, which is used to perform sensing measurement on the sensing target.

2. The method of claim 1, wherein, The at least one DSMW includes one of the following: Multiple periodic DSMWs; Semi-persistent multiple DSMWs; The network device triggers multiple DSMWs via signaling; The network device triggers a DSMW via signaling.

3. The method of claim 2, wherein, Determining the effective time of the indication information based on the first moment of receiving the indication information and at least one DSMW includes: Based on the first DSMW located after the first time in the at least one DSMW, the effective time of the indication information is determined to be the start time of the first DSMW, and the interval between the first time and the start time of the first DSMW is greater than or equal to a preset duration.

4. The method of claim 2, wherein, Determining the effective time of the indication information based on the first moment of receiving the indication information and at least one DSMW includes: Based on the first DSMW located after the first time in the at least one DSMW, the effective time of the indication information is determined to be the start time of the uplink resource in the first DSMW, and the interval between the first time and the start time of the uplink resource is greater than or equal to a preset duration.

5. The method of claim 2, wherein, Determining the effective time of the indication information based on the first moment of receiving the indication information and at least one DSMW includes: If the first moment falls within the second DSMW of the at least one DSMW, the effective moment of the indication information is determined to be one of the following: The second time after the first time, wherein the second time is not within any of the at least one DSMW; The end time of the DSMW in which the second time occurs, wherein the second time is located within one of the at least one DSMW; Wherein, the interval between the first moment and the second moment is greater than or equal to a preset duration.

6. The method of claim 2, wherein, Determining the effective time of the indication information based on the first moment of receiving the indication information and at least one DSMW includes: If the first time point is located between two adjacent DSMWs in the at least one DSMW, and the time interval between the first time point and the start time of the DSMW after the first time point is greater than or equal to a preset duration, the effective time point is determined to be the start time of the DSMW after the first time point.

7. The method of claim 2, wherein, The method further includes: When there is a gap between two adjacent DSMWs in at least one DSMW, the terminal ignores the received indication information.

8. The method as described in any one of claims 2 to 6, wherein, The indication information is carried in the signaling that triggers the DSMW, and the indication information is also used to adjust the TA within the DSMW; wherein, the first time interval between the first time and the start time of the DSMW is a preset duration.

9. The method of any one of claims 1 to 8, wherein, The method further includes: At the time of effectiveness, adjust TA according to the instruction information; In the DSMW most recently after the effective time, an uplink signal is sent according to the adjusted TA, wherein the uplink signal includes a sensing signal.

10. The method of claim 9, wherein, When multiple indication messages take effect at the same time, adjusting the TA according to the indication messages includes the following: Adjust the TA according to the last received instruction among the plurality of instruction messages; The accumulated adjustment value is determined based on the multiple indication information, and the TA is adjusted based on the accumulated adjustment value.

11. The method of any one of claims 1 to 8, wherein, The method further includes: If the TA timer times out in any of the at least one DSMWs, a sensing signal is sent only according to the TA corresponding to the TA timer.

12. The method of claim 11, wherein, The method further includes: Receive first information sent by the network device, the first information being used to indicate the updated TA; or... Send a second message to the network device, the second message being used to request an updated TA; The first information is determined based on the sensing signal received by the network device or based on the second information.

13. The method as claimed in any one of claims 1 to 12, wherein, The terminal does not support the first capability, which is the ability to maintain phase consistency of the transmitted sensing signal within the same DSMW while adjusting the TA within a DSMW.

14. The method of claim 13, wherein, The method further includes: The network device sends capability information, which is used to indicate whether the terminal supports the first capability.

15. A communication method performed by a network device, the method comprising: Send indication information to the terminal, the indication information being used to indicate the adjustment value of timing advance (TA), wherein the first moment when the indication information is received and at least one DSMW are used to determine the effective moment of the indication information, wherein the at least one DSMW is a window for sending sensing signals, the sensing signals being used to perform sensing measurements on the sensing target.

16. The method of claim 15, wherein, The at least one DSMW includes one of the following: Multiple periodic DSMWs; Semi-persistent multiple DSMWs; The network device triggers multiple DSMWs via signaling; The network device triggers a DSMW via signaling.

17. The method of claim 16, wherein, The effective time of the indication information is: the start time of the first DSMW located after the first time among the at least one DSMW, and the interval between the first time and the start time of the first DSMW is greater than or equal to a preset duration.

18. The method of claim 16, wherein, The effective time of the indication information is: the start time of the uplink resource in the first DSMW located after the first time in the at least one DSMW, and the interval between the first time and the start time of the uplink resource is greater than or equal to a preset duration.

19. The method of claim 16, wherein, If the first moment falls within the second DSMW of the at least one DSMW, the effective moment of the indication information is one of the following: The second time after the first time, wherein the second time is not within any of the at least one DSMW; The end time of the DSMW in which the second time occurs, wherein the second time is located within one of the at least one DSMW; Wherein, the interval between the first moment and the second moment is greater than or equal to a preset duration.

20. The method of claim 16, wherein, The first time point is located in the interval between two adjacent DSMWs in the at least one DSMW, and the time between the first time point and the start time of the DSMW after the first time point is greater than or equal to a preset duration. The effective time point is the start time of the DSMW after the first time point.

21. The method according to any one of claims 16 to 20, wherein, The indication information is carried in the signaling that triggers the DSMW, and the indication information is also used to adjust the TA within the DSMW; wherein, the first time interval between the first time and the start time of the DSMW is a preset duration.

22. The method of any one of claims 15 to 21, wherein, The method further includes: If the TA timer times out in any of the at least one DSMWs, the terminal sends a sensing signal and determines first information based on the received sensing signal; or, the terminal sends second information, which is used to request an updated TA. The first information is sent to the terminal, and the first information is used to indicate the updated TA.

23. The method as claimed in any one of claims 15 to 22, wherein, The terminal does not support the first capability, which is the ability to maintain phase consistency of the transmitted sensing signal within the same DSMW while adjusting the TA within a DSMW.

24. The method of claim 23, wherein, The method further includes: The terminal sends capability information, which indicates whether the terminal supports the first capability.

25. A communications device, comprising: The communication device is used to perform the method according to any one of claims 1 to 14 or any one of claims 15 to 24.

26. A communication system comprising a terminal and network equipment, wherein, The terminal is configured to implement the method as described in any one of claims 1 to 14; The network device is configured to implement the method as described in any one of claims 15 to 24.

27. A storage medium storing instructions, wherein, When the instructions are executed on the communication device, the communication device performs the method as described in any one of claims 1 to 14 or any one of claims 15 to 24.

28. A program product comprising at least one of a program, instructions, wherein, When at least one of the programs or instructions is executed by a communication device, it implements the method as described in any one of claims 1 to 14 or any one of claims 15 to 24.

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