Communication method, communication device, communication system and storage medium

Abstract

The present disclosure relates to a communication method, a communication device, a communication system and a storage medium. The method comprises: on the basis of a power parameter value, determining the transmit power of a reference signal, wherein the reference signal is a signal used for determining a parameter value associated with a timing advance (TA); and sending the reference signal to a network device at the transmit power. Thus, on the basis of the power parameter value, the transmission power of the reference signal is determined in real time, thereby achieving, to a certain extent, the control over the transmit power of the reference signal used for determining the parameter value associated with the TA.

Description

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

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

[0002] To ensure that uplink transmissions from terminals in different locations can be synchronously received on the network device side, the terminals need to adjust the Timing Advance (TA). Summary of the Invention

[0003] This disclosure provides a communication method, communication device, communication system, and storage medium. By determining the transmission power of a reference signal in real time based on the value of a power parameter, it achieves control over the transmission power of the reference signal used to determine the parameter value associated with the TA to a certain extent.

[0004] According to a first aspect of the present disclosure, a communication method is provided, the method being executed by a terminal, the method comprising:

[0005] Based on the power parameter value, the transmission power of the reference signal is determined, where the reference signal is the signal used to determine the parameter value associated with the timing advance TA;

[0006] It sends a reference signal to the network device at a certain transmission power.

[0007] According to a second aspect of the present disclosure, a communication method is provided, the method being performed by a network device, the method comprising:

[0008] The receiving terminal sends a reference signal, wherein the transmission power of the reference signal is determined by the terminal based on a power parameter value;

[0009] Based on the reference signal, determine the parameter value associated with the timing advance (TA).

[0010] According to a third aspect of the embodiments of this disclosure, a terminal is provided, comprising:

[0011] The processing module is used to determine the transmission power of the reference signal based on the power parameter value, wherein the reference signal is a signal used to determine the parameter value associated with the timing advance TA;

[0012] The transceiver module is used to send reference signals to network devices at transmit power.

[0013] According to a fourth aspect of the embodiments of this disclosure, a network device is provided, comprising:

[0014] The transceiver module is used to receive a reference signal sent by the terminal, wherein the transmission power of the reference signal is determined by the terminal based on a power parameter value;

[0015] The processing module is used to determine the parameter values ​​associated with the timing advance (TA) based on the reference signal.

[0016] According to a fifth aspect of the embodiments of this disclosure, a communication device is provided, comprising:

[0017] One or more processors;

[0018] The processor is configured to invoke instructions to execute the method described in the first aspect above, or to execute the method described in the second aspect above.

[0019] A sixth aspect of this disclosure provides a communication system including a terminal and a network device, wherein the terminal is configured to perform the method described in the first aspect above, and the network device is configured to perform the method described in the second aspect above.

[0020] A seventh aspect of this disclosure provides a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the first aspect above, or to perform the method described in the second aspect above.

[0021] An eighth aspect of this disclosure provides a computer program product including a computer program that, when executed by a processor, implements the method described in the first aspect above, or implements the method described in the second aspect above.

[0022] The solution proposed in this disclosure, in the above embodiments, determines the transmission power of the reference signal in real time based on the value of the power parameter, thereby achieving control over the transmission power of the reference signal used to determine the parameter value associated with the TA to a certain extent. Attached Figure Description

[0023] 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.

[0024] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0025] Figures 2A-2C are interactive schematic diagrams of the communication method provided according to embodiments of the present disclosure;

[0026] Figures 3A-3B are schematic flowcharts illustrating a communication method according to embodiments of the present disclosure;

[0027] Figure 4A is a schematic diagram of the structure of the first passive IoT AIoT device proposed in the embodiment of this disclosure;

[0028] Figure 4B is a schematic diagram of the structure of the second passive IoT AIoT device proposed in an embodiment of this disclosure;

[0029] Figure 5A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure;

[0030] Figure 5B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0031] This disclosure provides communication methods, communication devices, communication systems, and storage media.

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

[0033] Based on the power parameter value, the transmission power of the reference signal is determined, wherein the reference signal is a signal used to determine the parameter value associated with the timing advance (TA); the reference signal is transmitted to the network device at the transmission power.

[0034] In the above embodiments, by determining the transmission power of the reference signal in real time based on the value of the power parameter, the transmission power of the reference signal used to determine the parameter value of TA association is controlled to a certain extent, which provides conditions for reducing the power consumption of the system.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, the parameter values ​​associated with the above-mentioned TA are one or more of the following: timing advance TA value, first-order rate of change of TA, and second-order rate of change of TA.

[0036] In the above embodiments, the reference signal can be used to update one or more of the TA value, the first-order rate of change of TA, and the second-order rate of change of TA, which improves the flexibility of TA adjustment and provides conditions for further reducing the power consumption of the system.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the power parameter values ​​mentioned above include one or more of the following: target received power, the amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

[0038] In the above embodiments, the terminal determines the transmission power of the reference signal based on multiple power parameter values, thereby improving the accuracy of the determined transmission power and providing conditions for the reliable transmission of the reference signal.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the above power parameter values ​​are pre-configured by the network device.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments the above method further includes: determining the power parameter value.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, determining the power parameter value as described above includes any one of the following:

[0042] The power parameter values ​​are determined based on the time-frequency resource pattern of the reference signal, where different time-frequency resource patterns correspond to different power parameter values;

[0043] The power parameter value is determined based on the first information sent by the network device, wherein the first information is used to indicate the power parameter value.

[0044] In the above embodiments, the terminal can determine the power parameter value in a variety of ways, thereby improving the flexibility and reliability of the transmission power control of the reference signal.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the power parameter values ​​corresponding to the different time-frequency resource patterns described above are different, including one or more of the following differences:

[0046] Target received power,

[0047] The amount of frequency domain resources occupied by the reference signal

[0048] And road loss compensation coefficient.

[0049] In the above embodiments, one or more of the power parameter values ​​corresponding to different time-frequency resource patterns can be different, thereby providing conditions for flexible control of the transmission power of the reference signal.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments the above method further includes:

[0051] Receive second information sent by the network device, wherein the second information is used to indicate the time-frequency resource pattern.

[0052] In the above embodiments, the terminal can determine the time-frequency resource pattern used by the reference signal according to the instructions of the network device, thereby ensuring the consistency between the terminal and the network device in their understanding of the time-frequency resource pattern used by the reference signal, and providing conditions for the reliable transmission of the reference signal.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are the same.

[0054] In the above embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are the same, thereby simplifying the process of the terminal determining the transmission power of the reference signal, improving the efficiency of determining the transmission power, and providing conditions for improving the transmission efficiency of the reference signal.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, determining the transmission power of the reference signal based on power parameters includes:

[0056] The transmission power formula of the reference signal is determined based on the time-frequency resource pattern of the reference signal. Different time-frequency resource patterns correspond to different transmission power formulas for the reference signal.

[0057] In the above embodiments, the terminal can determine the corresponding transmission power formula based on the time-frequency resource pattern used, thereby further improving the flexibility of reference signal transmission power control.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments the above method further includes:

[0059] Determine the duration for sending the reference signal.

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

[0061] Determine the time to start sending the reference signal.

[0062] In conjunction with some embodiments of the first aspect, in some embodiments, determining the time to begin transmitting the reference signal includes any of the following:

[0063] The time to start transmitting the reference signal is determined based on the reception time and the preset duration. The reception time is the reception time of the first information or the second information. The second information is used to indicate the power parameter value and the second information is used to indicate the time-frequency resource pattern.

[0064] The time to start sending the reference signal is determined based on the preset reference time point and the preset offset.

[0065] The time to begin transmitting the reference signal is determined according to the instructions of the network device.

[0066] In the above embodiments, the terminal can determine the signal timing information for sending the reference signal, thereby ensuring that the terminal can send the reference signal within the time that the network device is listening to the reference signal, thus providing conditions for the reliable transmission of the reference signal.

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

[0068] If the resources used to transmit the reference signal overlap with the resources used to transmit other uplink transmissions in the time domain, the transmission of the reference signal is cancelled.

[0069] In the above embodiments, when the time domain resources occupied by the reference signal conflict with the time domain resources occupied by other uplink transmissions, the transmission of the reference signal can be cancelled, thereby avoiding the reference signal from affecting the transmission of other uplink transmissions and improving system performance.

[0070] In conjunction with some embodiments of the first aspect, in some embodiments, the first time-frequency resource pattern and the second time-frequency resource pattern for transmitting the reference signal satisfy any one of the following:

[0071] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0072] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0073] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0074] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0075] In the above embodiments, different time-frequency resource patterns can adopt multiple time-frequency setting methods, which improves the flexibility of time-frequency resources used to transmit reference signals and provides conditions for further reducing the power consumption of transmitting reference signals.

[0076] Secondly, embodiments of this disclosure provide a communication method, which is executed by a network device, the method comprising:

[0077] Based on the power parameter value, the transmission power of the reference signal is determined, where the reference signal is the signal used to determine the parameter value associated with the timing advance TA;

[0078] It sends a reference signal to the network device at a certain transmission power.

[0079] In conjunction with some embodiments of the second aspect, in some embodiments, the parameter values ​​associated with the above-mentioned TA are one or more of the following:

[0080] Timing advance value (TA), first-order rate of change of TA, second-order rate of change of TA.

[0081] In conjunction with some embodiments of the second aspect, in some embodiments, the power parameter values ​​mentioned above include one or more of the following: target received power, the amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

[0082] In conjunction with some embodiments of the second aspect, in some embodiments, the above power parameter values ​​are pre-configured by the network device.

[0083] In conjunction with some embodiments of the second aspect, in some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are different.

[0084] In conjunction with some embodiments of the second aspect, in some embodiments, the power parameter values ​​corresponding to the different time-frequency resource patterns described above are different, including one or more of the following differences:

[0085] Target received power,

[0086] The amount of frequency domain resources occupied by the reference signal

[0087] and road loss compensation coefficient,

[0088] In conjunction with some embodiments of the second aspect, in some embodiments the above method further includes:

[0089] Send first information to the terminal, wherein the first information is used to indicate the power parameter value.

[0090] In conjunction with some embodiments of the second aspect, in some embodiments the above method further includes:

[0091] Send a second message to the terminal, wherein the second message is used to indicate the time-frequency resource pattern.

[0092] In conjunction with some embodiments of the second aspect, in some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are the same; and / or,

[0093] Different time-frequency resource patterns correspond to different formulas for the transmission power of the reference signal.

[0094] In conjunction with some embodiments of the second aspect, in some embodiments the above method further includes:

[0095] Determine the duration of the reference signal.

[0096] In conjunction with some embodiments of the second aspect, in some embodiments the above method further includes:

[0097] Determine the time when the terminal begins sending the reference signal.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, the determination of the time when the terminal begins to transmit the reference signal includes any of the following:

[0099] Based on the transmission time and the preset duration, the time at which the terminal starts transmitting the reference signal is determined. The transmission time is the transmission time of the first information or the second information. The first information is used to indicate the power parameter value, and the second information is used to indicate the time-frequency resource pattern.

[0100] Based on the preset reference time point and the preset offset, determine the time when the terminal starts sending the reference signal;

[0101] The time indicated to the terminal is determined as the time when the terminal begins sending reference signals.

[0102] In conjunction with some embodiments of the second aspect, in some embodiments, the first time-frequency resource pattern and the second time-frequency resource pattern for transmitting the reference signal satisfy any one of the following:

[0103] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0104] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0105] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0106] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0107] Thirdly, embodiments of this disclosure provide a terminal, the terminal comprising:

[0108] The processing module is used to determine the transmission power of the reference signal based on the power parameter value, wherein the reference signal is a signal used to determine the parameter value associated with the timing advance TA;

[0109] A transceiver module is used to transmit the reference signal to a network device at the aforementioned transmission power.

[0110] In conjunction with some embodiments of the third aspect, in some embodiments, the parameter values ​​associated with the above-mentioned TA are one or more of the following:

[0111] Timing advance value (TA), first-order rate of change of TA, second-order rate of change of TA.

[0112] In conjunction with some embodiments of the third aspect, in some embodiments, the above power parameter values ​​include one or more of the following: target received power, the amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

[0113] In conjunction with some embodiments of the third aspect, in some embodiments, the above power parameter values ​​are pre-configured by the network device.

[0114] In conjunction with some embodiments of the third aspect, in some embodiments, the above-described processing module is further used to determine the power parameter value.

[0115] In conjunction with some embodiments of the third aspect, in some embodiments, the above-described processing module is further configured to perform any of the following:

[0116] The power parameter values ​​are determined based on the time-frequency resource pattern of the reference signal, where different time-frequency resource patterns correspond to different power parameter values;

[0117] The power parameter value is determined based on the first information sent by the network device, wherein the first information is used to indicate the power parameter value.

[0118] In conjunction with some embodiments of the third aspect, in some embodiments, the power parameter values ​​corresponding to the different time-frequency resource patterns described above are different, including one or more of the following differences:

[0119] Target received power,

[0120] The amount of frequency domain resources occupied by the reference signal

[0121] And road loss compensation coefficient.

[0122] In conjunction with some embodiments of the third aspect, in some embodiments, the transceiver module described above is further configured to receive second information sent by the network device, wherein the second information is used to indicate a time-frequency resource pattern.

[0123] In conjunction with some embodiments of the third aspect, in some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are the same.

[0124] In conjunction with some embodiments of the third aspect, in some embodiments, the above-described processing module is further configured to:

[0125] The transmission power formula of the reference signal is determined based on the time-frequency resource pattern of the reference signal. Different time-frequency resource patterns correspond to different transmission power formulas for the reference signal.

[0126] In conjunction with some embodiments of the third aspect, in some embodiments, the above-described processing module is further configured to determine the duration of transmitting the reference signal.

[0127] In conjunction with some embodiments of the third aspect, in some embodiments, the above-described processing module is further configured to determine the time for starting to transmit the reference signal.

[0128] In conjunction with some embodiments of the third aspect, in some embodiments, the above-described processing module is further configured to perform any of the following:

[0129] The time to start transmitting the reference signal is determined based on the reception time and the preset duration. The reception time is the reception time of the first information or the second information. The second information is used to indicate the power parameter value and the second information is used to indicate the time-frequency resource pattern.

[0130] The time to start sending the reference signal is determined based on the preset reference time point and the preset offset.

[0131] Determine the time to start sending reference signals based on the instructions from the network equipment.

[0132] In conjunction with some embodiments of the third aspect, in some embodiments, the resources used to transmit the reference signal overlap with the resources used to transmit other uplink transmissions in the time domain, and the transceiver module is further used to cancel the transmission of the reference signal.

[0133] In conjunction with some embodiments of the third aspect, in some embodiments, the first time-frequency resource pattern and the second time-frequency resource pattern for transmitting the reference signal satisfy any one of the following:

[0134] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0135] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0136] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0137] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0138] Fourthly, embodiments of this disclosure provide a network device, the network device comprising:

[0139] A transceiver module is used to receive a reference signal sent by a terminal, wherein the transmission power of the reference signal is determined by the terminal based on a power parameter value;

[0140] The processing module is used to determine the parameter values ​​associated with the timing advance (TA) based on the reference signal.

[0141] In conjunction with some embodiments of the fourth aspect, in some embodiments, the parameter values ​​associated with the above-mentioned TA are one or more of the following:

[0142] Timing advance value (TA), first-order rate of change of TA, second-order rate of change of TA.

[0143] In conjunction with some embodiments of the fourth aspect, in some embodiments, the above power parameter values ​​include one or more of the following: target received power, the amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

[0144] In conjunction with some embodiments of the fourth aspect, in some embodiments, the above power parameter values ​​are pre-configured by the network device.

[0145] In conjunction with some embodiments of the fourth aspect, in some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are different.

[0146] In conjunction with some embodiments of the fourth aspect, in some embodiments, the power parameter values ​​corresponding to the different time-frequency resource patterns described above are different, including one or more of the following differences:

[0147] Target received power,

[0148] The amount of frequency domain resources occupied by the reference signal

[0149] and road loss compensation coefficient,

[0150] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module described above is further configured to send first information to the terminal, wherein the first information is used to indicate a power parameter value.

[0151] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module described above is further configured to send second information to the terminal, wherein the second information is used to indicate a time-frequency resource pattern.

[0152] In conjunction with some embodiments of the fourth aspect, in some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are the same; and / or,

[0153] Different time-frequency resource patterns correspond to different formulas for the transmission power of the reference signal.

[0154] In conjunction with some embodiments of the fourth aspect, in some embodiments, the above-described processing module is also used to determine the duration of the reference signal.

[0155] In conjunction with some embodiments of the fourth aspect, in some embodiments, the above-described processing module is further configured to determine the time when the terminal begins to transmit the reference signal.

[0156] In conjunction with some embodiments of the fourth aspect, in some embodiments, the above-described processing module is further configured to perform any of the following:

[0157] Based on the transmission time and the preset duration, the time at which the terminal starts transmitting the reference signal is determined. The transmission time is the transmission time of the first information or the second information. The first information is used to indicate the power parameter value, and the second information is used to indicate the time-frequency resource pattern.

[0158] Based on the preset reference time point and the preset offset, determine the time when the terminal starts sending the reference signal;

[0159] The time indicated to the terminal is determined as the time when the terminal begins sending reference signals.

[0160] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first time-frequency resource pattern and the second time-frequency resource pattern for transmitting the reference signal satisfy any one of the following:

[0161] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0162] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0163] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0164] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0165] Fifthly, embodiments of this disclosure provide a communication device, which includes one or more processors; wherein the communication device is used to execute the first aspect and optional implementations of the first aspect, or to execute the second aspect and optional implementations of the second aspect.

[0166] In a sixth aspect, embodiments of this disclosure provide a communication system comprising: a terminal and a network device; wherein the terminal is configured to perform the method described in the first aspect and optional implementations thereof, and the network device is configured to perform the method described in the second aspect and optional implementations thereof.

[0167] In a seventh aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the first aspect and its optional implementations, or to perform the method described in the second aspect and its optional implementations.

[0168] Eighthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method described in the first aspect and its optional implementations, or to perform the method described in the second aspect and its optional implementations.

[0169] In a ninth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the method as described in the first aspect and optional implementations of the first aspect, or to perform the method as described in the second aspect and optional implementations of the second aspect.

[0170] In a tenth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described according to the first aspect and optional implementations thereof, or configured to perform the method described according to the second aspect and optional implementations thereof.

[0171] It is understood that the aforementioned terminals, network devices, 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.

[0172] This disclosure provides a communication method. In some embodiments, the terms communication method, measurement configuration method, configuration method, etc., can be used interchangeably; the terms measurement configuration device, configuration device, communication device, etc., can be used interchangeably; and the terms measurement configuration system, configuration system, communication system, etc., can be used interchangeably.

[0173] 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.

[0174] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0175] 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.

[0176] 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.

[0177] In the embodiments disclosed herein, "multiple" refers to two or more.

[0178] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0179] 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 B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0180] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); 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, C, etc.

[0181] 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.

[0182] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0183] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0184] 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”.

[0185] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0186] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0187] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "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," or "bandwidth part (BWP)."

[0188] In some embodiments, "terminal" or "terminal device" may be referred to as "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," "client," etc.

[0189] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0190] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0191] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0192] As shown in Figure 1, the communication system 100 may include a terminal 101 and a network device 102.

[0193] In some embodiments, terminal 101 includes, for example, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home, but is not limited thereto.

[0194] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0195] In some embodiments, the access network device 102 may be 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: an evolved Node B (eNB), a next-generation eNB (ng-eNB), a next-generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.

[0196] 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.

[0197] 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.

[0198] In some embodiments, the core network equipment may be a single device, including a first network element, a second network element, etc., or it may be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. Network elements may be virtual or physical. The core network may include, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0199] 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.

[0200] The following embodiments of this disclosure can be applied to the communication system shown in FIG1, or some of the subjects, but are not limited thereto. The subjects shown in FIG1 are illustrative. The communication system may include all or some of the subjects in FIG1, or may include other subjects other than those in FIG1. ​​The number and form of each subject are arbitrary. Each subject may be physical or virtual. The connection relationship between the subjects is illustrative. The subjects may not be connected or may be connected. The connection may be in any way, such as direct connection or indirect connection, wired connection or wireless connection.

[0201] 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).

[0202] In a non-terrestrial network (NTN) system, a terminal performs timing advance (TA) adjustments, typically based on its own Global Navigation Satellite System (GNSS) module. It can determine its own position based on GNSS and make TA adjustments according to the TA commands sent by the network.

[0203] In some embodiments, the TA value that needs to be adjusted can be determined using Equation 1 below. TA =(N TA +N TA,UE-specific +N TA,commom +N TA,offset )×T C (1)

[0204] Where: N TA It is 0 before initial access, and will be updated according to the TA command issued by the network device thereafter;

[0205] N TA,UE-specific It is the TA of the service link calculated by the terminal based on the satellite ephemeris information broadcast by the network device and its own location;

[0206] N TA,commom It is the TA of the feeder link calculated by the terminal based on the common timing advance parameter information broadcast by the network device;

[0207] N TA,offset It is a fixed offset value, defined in the same way as in terrestrial communication networks;

[0208] T c It is the basic unit of time, and its definition is the same as that in terrestrial communication networks.

[0209] In some embodiments, in NTN, the terminal may not have a GNSS module, or in some cases, GNSS may be unavailable due to coverage issues. In these cases, the terminal's location cannot be obtained through GSNN, and the terminal cannot adjust its TA based on the existing TA adjustment mechanism.

[0210] In some embodiments, for Low Earth Orbit (LEO) NTN networks, the TA (Transmission Terminal) changes relatively quickly in the connected state. To avoid network devices frequently sending TA commands, the network devices can first track the changes in TA.

[0211] In some embodiments, the terminal can send a tracking reference signal (RS) because the network device needs to obtain the rate of change of the tracking TA (TA) within a short period of time. The terminal can use a denser time-frequency resource pattern (pattern 1) to send the tracking RS for the network device to track the changes in the TA (this process can be called the initial tracking TA process) to obtain a parameter value associated with the TA, such as the TA value and the rate of change of the TA (e.g., first-order rate of change, second-order rate of change, etc.). This parameter is then configured for the UE, allowing the terminal to calculate the TA value over a period of time based on the associated parameters, after which the terminal adjusts the TA. After the network device finishes tracking the TA, the terminal can use a sparser time-frequency resource pattern (pattern 2) to send the tracking RS (this process can be called the re-tracking TA process) for the network device to update the parameter values ​​associated with the determined TA. This is because during the initial tracking of the TA in the network, the parameter values ​​associated with the TA have already been obtained, such as the first and second rates of change of the TA. However, considering the moving speed of the terminal, the position of the terminal may change, so the rate of change of the TA may change to some extent. For example, if the second rate of change of the TA changes, the terminal needs to continue to send tracking RS, so that the network device can fine-tune the already obtained rate of change of the TA. Therefore, the temporal density of the tracking RS in pattern2 does not need to be so dense.

[0212] In some embodiments, the tracking RS used by the terminal for TA adjustment can be a new reference signal, such as a tracking RS. In this case, two time-frequency domain resource patterns can be used to transmit the initial tracking TA (pattern 1) and the retransmission of the tracking TA (pattern 2), respectively. Alternatively, an existing time-frequency resource pattern of the reference signal can be reused. For example, the pattern of the Sounding Reference Signal (SRS) can be used as pattern 1 for the initial tracking TA process; however, pattern 2 can use a newly designed SRS pattern for the retransmission of the tracking TA process, wherein pattern 2 has less time-domain resource than pattern 1.

[0213] In some embodiments, regardless of whether a new reference signal is introduced, the time-frequency domain resource pattern used for the initial tracking TA and the time-frequency domain resource pattern used for tracking the TA again may be different or the same.

[0214] This solution proposes a method for determining the power of the tracking RS used for TA adjustment in real time based on power parameters, thereby providing conditions for saving the transmission power consumption of the reference signal while ensuring the reliable transmission of the reference signal used for TA adjustment.

[0215] 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 present disclosure relates to a communication method for a communication system, the communication system including a terminal and a network device, the method including:

[0216] Step S2101: Send the second message.

[0217] In some embodiments, the network device sends second information to the terminal.

[0218] In some embodiments, if the satellites in the NTN network are in transparent forwarding mode, then the network equipment can be a ground base station.

[0219] In some embodiments, if the satellites in the NTN network are in regenerative mode, then the network equipment can be satellite equipment.

[0220] In some embodiments, the second information is used to indicate a time-frequency resource pattern.

[0221] In some embodiments, terms such as "time-frequency resource pattern", "time-frequency resource mode", and "time-frequency resource style" can be used to indicate the allocation of resources in time and frequency. In some scenarios, the above terms can be used interchangeably.

[0222] In some embodiments, the second information can be transmitted via downlink physical layer control signaling, such as via downlink control information (DCI). Alternatively, the second information can also be transmitted via a medium access control (MAC) control element, which is not limited in this disclosure.

[0223] In some embodiments, the terminal may determine the time-frequency resource pattern indicated in the second information as the time-frequency resource pattern that the reference signal is currently to use.

[0224] In some embodiments, the network device may pre-configure multiple time-frequency resource patterns for the terminal, and then indicate the time-frequency resource pattern to be used through the second information.

[0225] In some embodiments, the network device can configure multiple time-frequency resource patterns for a terminal via system messages. For example, two time-frequency resource patterns, pattern 1 and pattern 2, can be configured via a System Information Block (SIB) or a Master Information Block (MIB), etc. This disclosure does not limit this.

[0226] In some embodiments, a network device may configure multiple time-frequency resource patterns for a terminal via Radio Resource Control (RRC) messages.

[0227] In some embodiments, a network device may use a single bit to indicate to a terminal the index of the time-frequency resource pattern being used. Different values ​​of this bit indicate different time-frequency resource pattern indices.

[0228] In some embodiments, different bits correspond to different time-frequency resource patterns. When the value of a certain bit is valid, it indicates that the currently used time-frequency resource pattern is the pattern corresponding to that bit.

[0229] In some embodiments, the network device can configure two time-frequency resource patterns for the terminal: a first time-frequency resource pattern (Pattern1) and a second time-frequency resource pattern (Pattern2).

[0230] In some embodiments, the possible structural forms of the first time-frequency resource pattern (Pattern1) and the second time-frequency resource pattern (Pattern2) in the time-frequency domain can be referred to Table 1 below:

[0231] Table 1

[0232] In other words, the structure of Pattern1 and Pattern2 can be as shown in example (case)1: the time domain density of the first time-frequency resource pattern is greater than the time domain density of the second time-frequency resource pattern, the frequency domain density of the first time-frequency resource pattern is the same as the frequency domain density of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as the number of resources occupied by the second time-frequency resource pattern in the frequency domain.

[0233] Alternatively, the structure of Pattern1 and Pattern2 can be as shown in case2: the time-domain density of the first time-frequency resource pattern is greater than the time-domain density of the second time-frequency resource pattern, the frequency-domain density of the first time-frequency resource pattern is different from the frequency-domain density of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from the number of resources occupied by the second time-frequency resource pattern in the frequency domain.

[0234] Alternatively, the structure of Pattern1 and Pattern2 can be as shown in case3: the time-domain density of the first time-frequency resource pattern is greater than the time-domain density of the second time-frequency resource pattern, the frequency-domain density of the first time-frequency resource pattern is the same as the frequency-domain density of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from the number of resources occupied by the second time-frequency resource pattern in the frequency domain.

[0235] Alternatively, the structure of Pattern1 and Pattern2 can be as shown in case4: the time-domain density of the first time-frequency resource pattern is greater than the time-domain density of the second time-frequency resource pattern, the frequency-domain density of the first time-frequency resource pattern is different from the frequency-domain density of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as the number of resources occupied by the second time-frequency resource pattern in the frequency domain.

[0236] Step S2102: Determine the power parameter value based on the time-frequency resource pattern of the reference signal.

[0237] In some embodiments, different power parameter values ​​correspond to different time-frequency resource patterns.

[0238] In some embodiments, the power parameters include one or more of the following: target received power, the amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

[0239] In some embodiments, the target received power may be configured by the network device or agreed upon by the protocol.

[0240] In some embodiments, the target received power of network devices corresponding to different serving cells, different bandwidth parts (BWP), and different carriers may be different.

[0241] In some embodiments, the number of frequency domain resources occupied by the reference signal describes the number of frequency domain resource units occupied by the reference signal, such as the number of Physical Resource Blocks (PRBs) or Physical Resource Elements (PREs). The number of frequency domain resources occupied by the reference signal can be configured by the network device or agreed upon by the protocol, and this disclosure does not limit it.

[0242] In some embodiments, the road loss compensation coefficient can be configured by the network device or agreed upon by the protocol.

[0243] In some embodiments, the network device may pre-configure different sets of power parameters corresponding to different time-frequency resource patterns for the terminal. Among these sets, at least one power parameter has a different value. For example, time-frequency resource pattern pattern1 (hereinafter referred to as pattern1) corresponds to power parameter set #1, and pattern2 corresponds to power parameter set #2. Among these sets, at least one power parameter value differs between power parameter set #1 and power parameter set #2, such as different target received power and / or different amounts of frequency domain resources occupied by the reference signal.

[0244] In some embodiments, different time-frequency resource patterns correspond to different power parameter values, including one or more of the following differences: target received power, the amount of frequency domain resources occupied by the reference signal, and the path loss compensation coefficient. That is, between power parameter set #1 and power parameter set #2, at least one of the following parameters has a different value: target received power, the amount of frequency domain resources occupied by the reference signal, and the path loss compensation coefficient.

[0245] In some embodiments, when using pattern1, the target received power value is p1; when using pattern2, the target received power value is p2.

[0246] In some embodiments, the density corresponding to pattern1 is greater than the density corresponding to pattern2, and the p1 value is greater than the p2 value.

[0247] In some embodiments, when using pattern1, the road loss compensation coefficient is α1; when using pattern2, the road loss compensation coefficient is α2.

[0248] In some embodiments, the density corresponding to pattern1 is greater than the density corresponding to pattern2, and α1 is greater than α2.

[0249] In some embodiments, when using pattern1, the amount of resources occupied by the reference signal in the frequency domain is M1; when using pattern2, the amount of resources occupied by the reference signal in the frequency domain is M2.

[0250] In some embodiments, the density corresponding to pattern1 is greater than the density corresponding to pattern2, and M1 is greater than M2.

[0251] In some embodiments, the power parameter value may also include the path loss value between the terminal and the network device. This path loss value may be determined by the terminal based on the downlink reference signal.

[0252] In some embodiments, the network device may also configure a set of common power parameters for the terminal to calculate the transmission power of the reference signal.

[0253] In some embodiments, regardless of which time-frequency resource pattern is indicated in the second information, the terminal can determine that the corresponding power parameter value is a value in the common power parameter set. That is, different time-frequency resource patterns correspond to the same power parameter value.

[0254] The power parameter information included in the power parameter set can be found in the detailed description of other embodiments of this disclosure, and will not be repeated here.

[0255] In some embodiments, network devices can configure a common power parameter set through RRC or system information.

[0256] In some embodiments, if the network device only configures a set of common power parameters for the terminal, then the terminal can directly use the parameter values ​​in the set of common power parameters without executing the above S2102.

[0257] Step S2103: Determine the transmission power of the reference signal based on the power parameter value.

[0258] In some embodiments, the reference signal is a signal used to determine the parameter value associated with the timing advance (TA).

[0259] In some embodiments, the reference signal can be any signal that can be used for TA measurement and / or tracking.

[0260] In some embodiments, the terms "reference signal," "tracking reference signal," and "following reference signal" can be used interchangeably in certain scenarios.

[0261] In some embodiments, the reference signal may be a sounding reference signal (SRS), a tracking reference signal (TRS), or other reference signals; this disclosure does not limit the specific reference signal used.

[0262] In some embodiments, the parameter value associated with TA can be one or more of the following: timing advance TA value, first-order rate of change of TA, second-order rate of change of TA, etc.

[0263] In some embodiments, the terminal can determine the transmission power of the reference signal based on the reference signal transmission power formula shown in equation (2):

[0264] in, For the target received power value, 10log 10 (2 μ ·M tracking RS,b,f,c (i) represents the total power value of the resources occupied by Tracking RS in the frequency domain. PL is the road loss compensation coefficient. b,f,c (q s P represents the path loss value between the terminal and the network equipment, calculated by the terminal based on the downlink signal. CMAX,f,c (i) represents the maximum transmit power value of the terminal.

[0265] In some embodiments, the letters in the subscripts of the above parameters have the following meanings: c represents the serving cell; f represents the carrier; b represents the bandwidth portion (BWP); l represents the power control adjustment state index of the Physical Uplink Control Channel (PUCCH), and l can take values ​​such as 0 or 1; i represents the transmission occasion of the PUCCH; q s , which represents the index of the resource where the reference signal used to calculate path loss is located (pathloss RS resource index), which can be configured based on RRC signaling or updated based on MAC CE.

[0266] In some embodiments, Used to indicate the corresponding serving cell c, carrier f, bandwidth portion b, and resource index q. s The target received power value of the network device.

[0267] Step S2104: Determine the duration of transmitting the reference signal.

[0268] In some embodiments, the terminal and network device may determine the duration for which the terminal transmits the reference signal.

[0269] In some embodiments, the duration of the reference signal can be a fixed value, which can be configured by the network device or agreed upon by the protocol.

[0270] In some embodiments, the durations corresponding to different time-frequency resource patterns may be equal or unequal.

[0271] In some embodiments, when configuring a time-frequency resource pattern for a terminal, the network device can simultaneously configure the duration of the time-frequency resource pattern. For example, the network device configures pattern 1 and pattern 2 for the terminal, and the duration ΔT1 corresponding to pattern 1 and the duration ΔT2 corresponding to pattern 2.

[0272] In some embodiments, the network device may indicate to the terminal the duration ΔT1 of pattern1 and the duration ΔT2 of pattern2 via downlink physical layer control signaling (such as DCI).

[0273] In some embodiments, the network device may also indicate pattern 1 and pattern 2, and △T1 and △T2 in system messages. For example, pattern 1 and pattern 2, and △T1 and △T2 may be configured through a System Information Block (SIB) or a Master Information Block (MIB), etc., which is not limited in this disclosure.

[0274] In this embodiment of the disclosure, the terminal and network device can determine the duration of the reference signal based on the same rules, thereby ensuring the reliable transmission of the reference signal and providing conditions for determining accurate TA associated parameter values.

[0275] Step S2105: Determine the time to start sending the reference signal.

[0276] In some embodiments, the terminal and network device may determine the time to start transmitting the reference signal.

[0277] In some embodiments, the terminal may determine the time to start sending the reference signal based on the reception time of the second information and a preset duration.

[0278] In some embodiments, the preset duration can be configured by the network device or agreed upon by the protocol.

[0279] In some embodiments, the preset duration can be the duration required for the terminal to decode the received second information and obtain the time-frequency resource pattern indicated in the second information.

[0280] In some embodiments, the terminal may determine the time after receiving the second information and then waiting for a preset period of time as the time to start sending the reference signal.

[0281] In some embodiments, the network device may determine the time when the terminal begins to send the reference signal based on the transmission time of the second information and a preset duration.

[0282] In some embodiments, the network device may estimate the time when the terminal receives the second information based on the transmission time of the second information and the channel state, and then determine the time when the terminal starts to transmit the reference signal based on the estimated reception time and the preset duration.

[0283] In some embodiments, the network device may also determine the time after which the terminal starts sending the second information, after a number of preset durations, as the reference time.

[0284] In some embodiments, the preset duration associated with different time-frequency resource patterns may be the same or different, and this disclosure does not limit this.

[0285] In some embodiments, the terminal and network device may also determine the time to start transmitting the reference signal based on a preset reference time point and a preset offset.

[0286] In some embodiments, the preset reference time may be configured by the network device or agreed upon by the protocol, and this disclosure does not limit it.

[0287] In some embodiments, the offsets associated with different time-frequency resource patterns may be the same or different, and this disclosure does not limit this.

[0288] In some embodiments, the network device may also indicate to the terminal the time to start sending reference signals.

[0289] In some embodiments, the terminal may determine the time to start transmitting the reference signal based on instructions from the network device.

[0290] In some embodiments, steps S2103, S2104 and S2105 can be executed in parallel; or step S2104 can be executed first, followed by steps S2103 and S2105; or step S2105 can be executed first, followed by steps S2103 and S2104.

[0291] Step S2106: Send a reference signal.

[0292] In some embodiments, the terminal may use a defined time-frequency resource pattern and a defined transmission power to begin transmitting a reference signal to the network device at the time at which the reference signal is first transmitted.

[0293] In some embodiments, the network device receives a reference signal sent by the terminal.

[0294] In some embodiments, the reference signal used to determine the parameter value associated with the TA can be sent periodically, and the terminal and network device can directly send the reference signal based on the transmission period without executing S2104 and S2105.

[0295] In some embodiments, the transmission period of the reference signal may be configured by the network device or agreed upon by the protocol, and this disclosure does not limit it.

[0296] Step S2107: Determine the parameter value associated with the timing advance TA based on the reference signal.

[0297] In some embodiments, if the reference signal received by the network device uses a high density of time-frequency resource patterns, the network device can determine the TA value, the first-order rate of change of TA, and the second-order rate of change of TA based on the reference signal.

[0298] In some embodiments, if the time-frequency resource pattern density used by the reference signal received by the network device is small, the network device can update the parameter values ​​associated with the determined TA based on the reference signal, such as updating the second-order rate of change of TA, or updating the first-order rate of change of TA and / or the second-order rate of change of TA, etc.

[0299] Step S2108: Send the parameter values ​​associated with TA.

[0300] In some embodiments, the network device may send the parameter value associated with the TA to the terminal.

[0301] In some embodiments, after receiving the TA-associated parameter value sent by the network device, the terminal can adjust the TA based on the TA-associated parameter value.

[0302] In some embodiments, if the resources used to transmit the reference signal overlap with the resources used to transmit other uplink transmissions in the time domain, the terminal may cancel the transmission of the reference signal.

[0303] In some embodiments, the content included in other uplink transmissions may be uplink signals or uplink data, and this disclosure does not limit this.

[0304] In some embodiments, after determining the time to start sending the reference signal and the duration of the reference signal, if the time domain resources occupied by the reference signal overlap with the time domain resources occupied by other uplink transmissions, then in order to ensure the reliable transmission of other uplink transmissions, the terminal may cancel sending the reference signal.

[0305] In some embodiments, if the time domain resources occupied by the reference signal partially overlap with the time domain resources occupied by other uplink transmissions, the terminal may cancel the transmission of the reference signal only during the overlapping period and transmit the reference signal only during the non-overlapping period. This disclosure does not limit this.

[0306] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2108. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, step S2104 may be implemented as an independent embodiment, step S2105 may be implemented as an independent embodiment, step S2101+S2102 may be implemented as an independent embodiment, step S2101+S2103 may be implemented as an independent embodiment, step S2103+S2106 may be implemented as an independent embodiment, step S2104+S2106 may be implemented as an independent embodiment, step S2105+S2106 may be implemented as an independent embodiment, step S2106+S2107 may be implemented as an independent embodiment, step S2107+S2108 may be implemented as an independent embodiment, etc., but not limited thereto.

[0307] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0308] In the embodiments disclosed herein, each step and its optional implementation can also be carried out independently.

[0309] In this embodiment, the network device indicates the pattern to be used to the terminal. The terminal then determines the power parameter value corresponding to the pattern, calculates the transmission power, and sends a reference signal to the network device. This minimizes the terminal's power consumption while ensuring the network device can reliably update the parameter values ​​associated with the transmission reference (TA).

[0310] Figure 2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2B, the present disclosure relates to a communication method for a communication system, the communication system including a terminal and a network device, the method including:

[0311] Step S2201: Send the second message.

[0312] In some embodiments, the network device sends second information to the terminal.

[0313] In some embodiments, the second information is used to indicate a time-frequency resource pattern.

[0314] For a detailed description of step S2201, please refer to step S2101 in the embodiment shown in Figure 2A, which will not be repeated here.

[0315] Step S2202: Send the first message.

[0316] In some embodiments, the network device sends first information to the terminal.

[0317] In some embodiments, the first information is used to indicate power parameter values.

[0318] In some embodiments, the first information and the second information can be sent through a unified message, that is, S2201 and S2202 can be executed simultaneously.

[0319] In some embodiments, the first information and the second information can be sent through different messages. That is, the first information and the second information can be sent in a time-sharing manner. For example, the first information can be sent first, followed by the second information (that is, S2202 can be executed first, followed by S2201), etc. This disclosure does not limit this.

[0320] In some embodiments, the network device may also configure multiple sets of power parameters for the terminal, and then indicate the power parameter values ​​to be used to the terminal through the first information.

[0321] In some embodiments, the network device can indicate an index of a power parameter set to the terminal through first information, and then the terminal can determine the value in the power parameter set corresponding to the index indicated by the first information as the power parameter value to be used.

[0322] In some embodiments, network devices can configure a set of power parameters for terminals using RRC or system information.

[0323] Step S2203: Determine the transmission power of the reference signal based on the power parameter value.

[0324] Step S2204: Determine the duration of transmitting the reference signal.

[0325] Step S2205: Determine the time to start sending the reference signal.

[0326] Step S2206: Send a reference signal.

[0327] Step S2207: Determine the parameter value associated with the timing advance TA based on the reference signal.

[0328] Step S2208: Send the parameter values ​​associated with TA.

[0329] In some embodiments, if the resources used to transmit reference signals overlap with the resources used to transmit other uplink transmissions in the time domain, the transmission of reference signals is cancelled.

[0330] For a detailed description of steps S2203-S2208, please refer to steps S2103-S2108 in the embodiment shown in Figure 2A, which will not be repeated here.

[0331] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2208. For example, step S2201 can be implemented as an independent embodiment, step S2202 can be implemented as an independent embodiment, step S2203 can be implemented as an independent embodiment, step S2204 can be implemented as an independent embodiment, step S2205 can be implemented as an independent embodiment, step S2201+S2202 can be implemented as an independent embodiment, step S2201+S2203 can be implemented as an independent embodiment, step S2203+S2206 can be implemented as an independent embodiment, step S2204+S2206 can be implemented as an independent embodiment, step S2205+S2206 can be implemented as an independent embodiment, step S2206+S2207 can be implemented as an independent embodiment, step S2207+S2208 can be implemented as an independent embodiment, etc., but not limited thereto.

[0332] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0333] In the embodiments disclosed herein, each step and its optional implementation can also be carried out independently.

[0334] In this embodiment, the network device indicates the pattern to be used and the power parameter value to the terminal. The terminal then calculates the transmission power based on the power parameter value and sends a reference signal to the network device. This minimizes the terminal's power consumption while ensuring the network device can reliably update the parameter values ​​associated with the TA.

[0335] Figure 2C is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2C, the present disclosure relates to a communication method for a communication system, the communication system including a terminal and a network device, the method including:

[0336] Step S2301: Send the second message.

[0337] In some embodiments, the network device sends second information to the terminal.

[0338] In some embodiments, the second information is used to indicate a time-frequency resource pattern.

[0339] For a detailed description of step S2301, please refer to step S2101 in the embodiment shown in Figure 2A, which will not be repeated here.

[0340] Step S2302: Determine the power parameter values.

[0341] In some embodiments, the terminal can determine the power parameter value based on the time-frequency resource pattern of the reference signal, wherein different time-frequency resource patterns correspond to different power parameter values.

[0342] In some embodiments, the terminal may determine the power parameter value based on first information sent by the network device, wherein the first information is used to indicate the power parameter value.

[0343] In some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns may be the same or different.

[0344] The specific implementation method for determining the power parameter value described above can be found in the detailed description of other embodiments, and will not be repeated here.

[0345] The execution order of the above steps S2301 and S2302 can be adjusted as needed. For example, S2302 can be executed first, followed by S2301; or S2301 and S2302 can be executed simultaneously. This disclosure does not limit this.

[0346] Step S2303: Determine the transmission power formula of the reference signal based on the time-frequency resource pattern of the reference signal.

[0347] In some embodiments, different time-frequency resource patterns correspond to different reference signal transmission power formulas.

[0348] In some embodiments, the formula for the transmission power of the reference signal may be as shown in equation (3) or (4):

[0349] The meanings of the parameters in equations (3) and (4) above can be found in the parameters in equation (2) of the above embodiments, and will not be repeated here. In addition, offset is the offset value, which may be positive or negative.

[0350] In some embodiments, the offset may be configured by the network device, or it may be pre-configured, or it may be agreed upon by the protocol.

[0351] In some embodiments, equations (3) and (4) above may be configured by the network device, or may be pre-configured, or may be agreed upon by the protocol.

[0352] In some embodiments, the terminal can determine the time-frequency resource pattern indicated by the second information and the corresponding reference signal transmission power formula based on the correspondence between the time-frequency resource pattern and the reference signal transmission power formula.

[0353] In some embodiments, the correspondence between the time-frequency resource pattern and the reference signal transmission power formula can be configured by the network device or agreed upon by the protocol.

[0354] For example, the correspondence between time-frequency resource patterns and reference signal transmission power formulas is as follows: pattern1 corresponds to formula (3), and pattern2 corresponds to formula (4). If the pattern indicated by the second information is pattern1, then the terminal can determine that the reference signal transmission power formula used is formula (3); if the pattern indicated by the second information is pattern2, then the terminal can determine that the reference signal transmission power formula used is formula (4).

[0355] Step S2304: Determine the transmission power of the reference signal based on the power parameter values ​​and the formula for the transmission power of the reference signal.

[0356] Step S2305: Determine the duration of transmitting the reference signal.

[0357] Step S2306: Determine the time to start sending the reference signal.

[0358] Step S2307: Send a reference signal.

[0359] Step S2308: Determine the parameter value associated with the timing advance TA based on the reference signal.

[0360] Step S2309: Send the parameter values ​​associated with TA.

[0361] For a detailed description of steps S2305-S2309, please refer to steps S2104-S2108 in the embodiment shown in Figure 2A, which will not be repeated here.

[0362] The communication method involved in the embodiments of this disclosure may include at least one of steps S2301 to S2309. For example, step S2301 can be implemented as an independent embodiment, step S2302 can be implemented as an independent embodiment, step S2303 can be implemented as an independent embodiment, step S2304 can be implemented as an independent embodiment, step S2305 can be implemented as an independent embodiment, step S2301+S2302 can be implemented as an independent embodiment, step S2301+S2303 can be implemented as an independent embodiment, step S2303+S2306 can be implemented as an independent embodiment, step S2304+S2306 can be implemented as an independent embodiment, step S2305+S2306 can be implemented as an independent embodiment, step S2306+S2307 can be implemented as an independent embodiment, step S2307+S2308 can be implemented as an independent embodiment, step S2308+S2309 can be implemented as an independent embodiment, and so on, but not limited thereto.

[0363] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0364] In the embodiments disclosed herein, each step and its optional implementation can also be carried out independently.

[0365] In this embodiment, the network device indicates the pattern to be used to the terminal. The terminal then determines the reference signal transmission power calculation formula based on the pattern, calculates the transmission power based on the power parameter values, and then sends the reference signal to the network device. This minimizes the terminal's power consumption while ensuring the network device can reliably update the parameter values ​​associated with the TA.

[0366] Figure 3A is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3A, the present disclosure relates to a communication method for a terminal, the method comprising:

[0367] Step S3101: Determine the transmission power of the reference signal based on the power parameter value, wherein the reference signal is a signal used to determine the parameter value associated with the timing advance TA.

[0368] Step S3102: Send a reference signal to the network device with transmission power.

[0369] In some embodiments, the parameter values ​​associated with the TA described above are one or more of the following:

[0370] Timing advance value (TA), first-order rate of change of TA, second-order rate of change of TA.

[0371] In some embodiments, the power parameter values ​​mentioned above include one or more of the following: target received power, amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

[0372] In some embodiments, the power parameter values ​​described above are pre-configured by the network device.

[0373] In some embodiments, the above method further includes:

[0374] Determine the power parameter value.

[0375] In some embodiments, determining the power parameter value as described above includes any of the following:

[0376] The power parameter values ​​are determined based on the time-frequency resource pattern of the reference signal, where different time-frequency resource patterns correspond to different power parameter values;

[0377] The power parameter value is determined based on the first information sent by the network device, wherein the first information is used to indicate the power parameter value.

[0378] In some embodiments, the power parameter values ​​corresponding to the different time-frequency resource patterns described above are different, including one or more of the following differences:

[0379] Target received power,

[0380] The amount of frequency domain resources occupied by the reference signal

[0381] And road loss compensation coefficient.

[0382] In some embodiments, the above method further includes:

[0383] Receive second information sent by the network device, wherein the second information is used to indicate the time-frequency resource pattern.

[0384] In some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are the same.

[0385] In some embodiments, determining the transmission power of the reference signal based on power parameters includes:

[0386] The transmission power formula of the reference signal is determined based on the time-frequency resource pattern of the reference signal. Different time-frequency resource patterns correspond to different transmission power formulas for the reference signal.

[0387] In some embodiments, the above method further includes:

[0388] Determine the duration for sending the reference signal.

[0389] In some embodiments, the above method further includes:

[0390] Determine the time to start sending the reference signal.

[0391] In some embodiments, determining the time to begin transmitting the reference signal includes any of the following:

[0392] The time to start transmitting the reference signal is determined based on the reception time and the preset duration. The reception time is the reception time of the first information or the second information. The second information is used to indicate the power parameter value and the second information is used to indicate the time-frequency resource pattern.

[0393] The time to start sending the reference signal is determined based on the preset reference time point and the preset offset.

[0394] The time to begin transmitting the reference signal is determined according to the instructions of the network device.

[0395] In some embodiments, the above method further includes:

[0396] If the resources used to transmit the reference signal overlap with the resources used to transmit other uplink transmissions in the time domain, the transmission of the reference signal is cancelled.

[0397] In some embodiments, the first time-frequency resource pattern and the second time-frequency resource pattern for transmitting the reference signal satisfy any one of the following:

[0398] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0399] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0400] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0401] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0402] For a detailed description of steps S3101-S3102, please refer to steps S2103 and S2106 in the embodiment shown in Figure 2A, which will not be repeated here.

[0403] Figure 3B is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3B, the present disclosure relates to a communication method for a network device, the method comprising:

[0404] Step S3201: Receive a reference signal sent by the terminal, wherein the transmission power of the reference signal is determined by the terminal based on a power parameter value.

[0405] Step S3201: Determine the parameter value associated with the timing advance TA based on the reference signal.

[0406] In some embodiments, the parameter values ​​associated with the TA described above are one or more of the following:

[0407] Timing advance value (TA), first-order rate of change of TA, second-order rate of change of TA.

[0408] In some embodiments, the power parameter values ​​mentioned above include one or more of the following: target received power, amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

[0409] In some embodiments, the power parameter values ​​described above are pre-configured by the network device.

[0410] In some embodiments, different power parameter values ​​correspond to different time-frequency resource patterns.

[0411] In some embodiments, the power parameter values ​​corresponding to the different time-frequency resource patterns described above are different, including one or more of the following differences:

[0412] Target received power,

[0413] The amount of frequency domain resources occupied by the reference signal

[0414] and road loss compensation coefficient,

[0415] In some embodiments, the above method further includes:

[0416] Send first information to the terminal, wherein the first information is used to indicate the power parameter value.

[0417] In some embodiments, the above method further includes:

[0418] Send a second message to the terminal, wherein the second message is used to indicate the time-frequency resource pattern.

[0419] In some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are the same; and / or,

[0420] Different time-frequency resource patterns correspond to different formulas for the transmission power of the reference signal.

[0421] In some embodiments, the above method further includes:

[0422] Determine the duration of the reference signal.

[0423] In some embodiments, the above method further includes:

[0424] Determine the time when the terminal begins sending the reference signal.

[0425] In some embodiments, determining the time when the terminal begins transmitting the reference signal includes any one of the following:

[0426] Based on the transmission time and the preset duration, the time at which the terminal starts transmitting the reference signal is determined. The transmission time is the transmission time of the first information or the second information. The first information is used to indicate the power parameter value, and the second information is used to indicate the time-frequency resource pattern.

[0427] Based on the preset reference time point and the preset offset, determine the time when the terminal starts sending the reference signal;

[0428] The time indicated to the terminal is determined as the time when the terminal begins sending reference signals.

[0429] In some embodiments, the first time-frequency resource pattern and the second time-frequency resource pattern for transmitting the reference signal satisfy any one of the following:

[0430] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0431] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0432] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0433] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0434] For a detailed description of steps S3201-S3202, please refer to the above embodiment description.

[0435] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0436] The following is an exemplary description of the above method.

[0437] The power control of the tracking reference signal (tracking RS) adopts an open-loop power control method. The transmit power value is determined based on the following power parameters: target receive power value p, the amount of resources M occupied by the tracking RS in the frequency domain, path loss value, and path loss compensation coefficient α.

[0438] Optionally, the number of resources M occupied by Tracking RS in the frequency domain can be M frequency domain resource units, such as M PRBs or M PREs.

[0439] Optionally, based on the above power parameters, the terminal can use the calculation formula shown in equation (2) above to calculate the transmission power when sending tracking RS.

[0440] In some embodiments, the terminal determines the transmission power of the tracking RS using the following three options:

[0441] Option 1: When the tracking RS uses pattern 1 or pattern 2, the above power formula (2) is used to calculate the final transmission power, but different power parameter values ​​are used.

[0442] Optionally, network devices can configure multiple sets of power parameters via RRC, which are used for power control of the tracking RS of pattern 1 and pattern 2 respectively. The power parameter set corresponding to the track RS pattern used can be dynamically indicated through physical layer control information, or the power parameter set corresponding to the track RS pattern used can be dynamically activated using MAC CE.

[0443] Example 1: When using pattern 1 for tracking RS, the target received power value p1 is used; when using pattern 2, the target received power value p2 is used.

[0444] Example 2: When using pattern 1, the tracking RS uses the road loss compensation coefficient α1; when using pattern 2, the road loss compensation coefficient α2 is used.

[0445] Example 3: When using pattern 1, the Tracking RS occupies M1 resources in the frequency domain. When using pattern 2, the Tracking RS occupies M2 resources in the frequency domain.

[0446] Optionally, in Example 1, the value of P1 is larger than the value of P2; in Example 2, the value of α1 is larger than the value of α2; and in Example 3, the frequency domain resources occupied by pattern1 are greater than those occupied by pattern2.

[0447] In some embodiments, in downlink physical layer control signaling, 1 bit is used to indicate to the terminal the index of the pattern of the currently used tracking RS.

[0448] Optionally, the above three embodiments can be used in combination.

[0449] For example, the network device configures two sets of power parameters via RRC: parameter set 1 {p1, α1, M1} and parameter set 2 {p2, α2, M2}. Parameter set 1 is used for power control of pattern 1, and parameter set 2 is used for power control of pattern 2. During the time period [t1, t2], the network device instructs the UE to use power parameter set 1 to determine the transmission power of the tracking RS via downlink physical control information. During the time period [t3, t4], the network device instructs the UE to use power parameter set 2 to determine the transmission power of the tracking RS via downlink physical control information.

[0450] Option 2: When the tracking RS uses pattern 1 or pattern 2, the final transmission power is calculated using the power formula (2) above, and the same power parameter value is used.

[0451] In some embodiments, network devices can configure a set of common power parameters via RRC to determine the transmit power of the tracking RS for pattern 1 and pattern 2.

[0452] Option 3: When the tracking RS uses pattern 1 or pattern 2, different power formulas (such as formula (3) or (4)) are used to determine the final transmission power, and for the same power parameter, the same power parameter value or different power parameter values ​​are used.

[0453] In some embodiments, network devices can configure a set of common power parameters via RRC to determine the transmit power of the tracking RS for pattern 1 and pattern 2.

[0454] Optionally, when using pattern1, the transmission power is calculated using formula (3).

[0455] Optionally, when using pattern2, the transmission power is calculated using formula (4).

[0456] Optionally, the offset value can be positive or negative, and it can be configured by the network side or pre-configured.

[0457] In some embodiments, if the satellites in the NTN network are in transparent forwarding mode, then the network equipment can be a ground base station.

[0458] In some embodiments, if the satellites in the NTN network are in regenerative mode, then the network equipment can be satellite equipment.

[0459] In some embodiments, the above embodiments can be applied to the following cases:

[0460] Case 1: The two patterns occupy the same amount of frequency domain resources, but the terminal uses different power parameter values ​​when using the two patterns. The terminal determines that the transmission power values ​​of the tracking RS for pattern 1 and the tracking RS for pattern 2 are different or the same.

[0461] Case 2: The two patterns occupy the same amount of frequency domain resources, and the terminal uses the same power parameter value when using both patterns. The terminal determines that the transmission power values ​​of the tracking RS for pattern 1 and the tracking RS for pattern 2 are either different or the same.

[0462] Case 3: The two patterns occupy different amounts of frequency domain resources. The terminal sends the two patterns using different power parameter values. The tracking RS for pattern 1 and the tracking RS for pattern 2 determined by the terminal are different or the same.

[0463] Case 4: The two patterns occupy different amounts of frequency domain resources. The terminal sends the two patterns using the same power parameter value. The terminal determines that the tracking RS for pattern 1 and the tracking RS for pattern 2 have different or the same transmission power values.

[0464] In some embodiments, the duration for the terminal to send the tracking RS of pattern 1 or pattern 2 can be determined as follows:

[0465] Method 1: For the duration of sending pattern 1 and pattern 2 tracking RS, the network device pre-configures the duration △T1 of sending pattern 1 and the duration △T2 of sending pattern 2 to the terminal; or, the network device indicates the duration △T1 of sending pattern 1 and the duration △T2 of sending pattern 2 to the terminal through downlink physical layer control signaling; or, the network device indicates the duration △T1 and duration △T2 in the system message (SIB or MIB).

[0466] Method 2: The durations of △T1 and △T2 are either equal or unequal.

[0467] In some embodiments, the terminal determines the time to start sending the tracking RS for pattern 1 and the time to start sending the tracking RS for pattern 2, which can be determined as follows:

[0468] Method 1: After receiving the tracking RS pattern indication information field carried in the physical layer control signaling (such as DCI) within △Tprocess time, the terminal starts to send tracking RS using the tracking RS pattern indicated by DCI, where △Tprocess is the time for the terminal to process downlink signals.

[0469] Method 2: The network device is pre-configured to send tracking RS pattern 1 at time t1 and tracking RS pattern 2 at time t2 to the terminal;

[0470] Method 3: The network device configures an offset value relative to a reference time point. For example, for the time t1 when tracking RS pattern 1 is sent, the network device is configured to offset 1 relative to the reference time point, and for the time t2 when tracking RS pattern 2 is sent, the network device is configured to offset 2 relative to the reference time point. The reference time point is configured or pre-configured by the network device, or defined by the protocol.

[0471] In some embodiments, if the time when the terminal sends the tracking RS overlaps with other uplink signals, the UE does not send the tracking RS, but only sends the other uplink signals.

[0472] In some embodiments, the tracking RS is transmitted periodically, with the period pre-configured by the network device.

[0473] In some embodiments, the design of the time-frequency domain structure of the tracking RS of pattern1 and pattern2 can refer to Table 1 above.

[0474] This disclosure also provides embodiments of an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., a RAN) in any of the above methods.

[0475] 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.

[0476] 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).

[0477] Figure 4A is a schematic diagram of the structure of a terminal proposed in an embodiment of this disclosure. As shown in Figure 4A, the terminal 4100 may include at least one of a transceiver module 4101, a processing module 4102, etc.

[0478] In some embodiments, the processing module is configured to determine the transmission power of a reference signal based on a power parameter value, wherein the reference signal is a signal used to determine the parameter value associated with the timing advance TA.

[0479] A transceiver module is used to transmit the reference signal to a network device at the aforementioned transmission power.

[0480] In some embodiments, the parameter values ​​associated with the TA described above are one or more of the following:

[0481] Timing advance value (TA), first-order rate of change of TA, second-order rate of change of TA.

[0482] In some embodiments, the power parameter values ​​mentioned above include one or more of the following: target received power, amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

[0483] In some embodiments, the power parameter values ​​described above are pre-configured by the network device.

[0484] In some embodiments, the above-described processing module is further configured to determine the power parameter value.

[0485] In some embodiments, the above-described processing module is further configured to perform any of the following:

[0486] The power parameter values ​​are determined based on the time-frequency resource pattern of the reference signal, where different time-frequency resource patterns correspond to different power parameter values;

[0487] The power parameter value is determined based on the first information sent by the network device, wherein the first information is used to indicate the power parameter value.

[0488] In some embodiments, the power parameter values ​​corresponding to the different time-frequency resource patterns described above are different, including one or more of the following differences:

[0489] Target received power,

[0490] The amount of frequency domain resources occupied by the reference signal

[0491] And road loss compensation coefficient.

[0492] In some embodiments, the transceiver module is further configured to receive second information sent by the network device, wherein the second information is used to indicate a time-frequency resource pattern.

[0493] In some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are the same.

[0494] In some embodiments, the above-described processing module is further configured to:

[0495] The transmission power formula of the reference signal is determined based on the time-frequency resource pattern of the reference signal. Different time-frequency resource patterns correspond to different transmission power formulas for the reference signal.

[0496] In some embodiments, the processing module described above is further configured to determine the duration of transmitting the reference signal.

[0497] In some embodiments, the processing module described above is further configured to determine the time at which the reference signal is started to be transmitted.

[0498] In some embodiments, the above-described processing module is further configured to perform any of the following:

[0499] The time to start transmitting the reference signal is determined based on the reception time and the preset duration. The reception time is the reception time of the first information or the second information. The second information is used to indicate the power parameter value and the second information is used to indicate the time-frequency resource pattern.

[0500] The time to start sending the reference signal is determined based on the preset reference time point and the preset offset.

[0501] Determine the time to start sending reference signals based on the instructions from the network equipment.

[0502] In some embodiments, the resources used to transmit the reference signal overlap with the resources used to transmit other uplink transmissions in the time domain, and the transceiver module is further configured to cancel the transmission of the reference signal.

[0503] In some embodiments, the first time-frequency resource pattern and the second time-frequency resource pattern for transmitting the reference signal satisfy any one of the following:

[0504] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0505] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0506] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0507] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0508] Optionally, the transceiver module described above 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 elaborated here.

[0509] Optionally, the above processing module is used to perform at least one of the other steps executed by the terminal in any of the above methods, which will not be elaborated here.

[0510] Figure 4B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. As shown in Figure 4B, the network device 4200 may include at least one of a transceiver module 4201, a processing module 4202, etc.

[0511] In some embodiments, the transceiver module described above is used to receive a reference signal sent by the terminal, wherein the transmission power of the reference signal is determined by the terminal based on a power parameter value;

[0512] The processing module is used to determine the parameter values ​​associated with the timing advance (TA) based on the reference signal.

[0513] In some embodiments, the parameter values ​​associated with the TA described above are one or more of the following:

[0514] Timing advance value (TA), first-order rate of change of TA, second-order rate of change of TA.

[0515] In some embodiments, the power parameter values ​​mentioned above include one or more of the following: target received power, amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

[0516] In some embodiments, the power parameter values ​​described above are pre-configured by the network device.

[0517] In some embodiments, different power parameter values ​​correspond to different time-frequency resource patterns.

[0518] In some embodiments, the power parameter values ​​corresponding to the different time-frequency resource patterns described above are different, including one or more of the following differences:

[0519] Target received power,

[0520] The amount of frequency domain resources occupied by the reference signal

[0521] and road loss compensation coefficient,

[0522] In some embodiments, the transceiver module is further configured to send first information to the terminal, wherein the first information is used to indicate a power parameter value.

[0523] In some embodiments, the transceiver module is further configured to send second information to the terminal, wherein the second information is used to indicate a time-frequency resource pattern.

[0524] In some embodiments, the power parameter values ​​corresponding to different time-frequency resource patterns are the same; and / or,

[0525] Different time-frequency resource patterns correspond to different formulas for the transmission power of the reference signal.

[0526] In some embodiments, the processing module described above is further configured to determine the duration of the reference signal.

[0527] In some embodiments, the above-described processing module is further configured to determine the time when the terminal begins to transmit the reference signal.

[0528] In some embodiments, the above-described processing module is further configured to perform any of the following:

[0529] Based on the transmission time and the preset duration, the time at which the terminal starts transmitting the reference signal is determined. The transmission time is the transmission time of the first information or the second information. The first information is used to indicate the power parameter value, and the second information is used to indicate the time-frequency resource pattern.

[0530] Based on the preset reference time point and the preset offset, determine the time when the terminal starts sending the reference signal;

[0531] The time indicated to the terminal is determined as the time when the terminal begins sending reference signals.

[0532] In some embodiments, the first time-frequency resource pattern and the second time-frequency resource pattern for transmitting the reference signal satisfy any one of the following:

[0533] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0534] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0535] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern, and the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain.

[0536] The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

[0537] Optionally, the transceiver module described above 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 elaborated here.

[0538] Optionally, the above processing module 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 elaborated here.

[0539] 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.

[0540] 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. Optionally, the processing module may be interchangeable with a processor.

[0541] 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.

[0542] As shown in Figure 5A, the communication device 5100 includes one or more processors 5101. The processor 5101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can 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. The communication device 5100 is used to execute any of the above methods.

[0543] In some embodiments, the communication device 5100 further includes one or more memories 5102 for storing instructions. Optionally, all or part of the memories 5102 may also be located outside the communication device 5100.

[0544] In some embodiments, the communication device 5100 further includes one or more transceivers 5103. When the communication device 5100 includes one or more transceivers 5103, the transceivers 5103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2106, S2108, S2201, S2202, S2206, S2208, S2301, S2307, S2309, but not limited thereto), and the processor 5101 performs other steps. At least one of the steps (e.g., steps S2102, S2103, S2104, S2105, S2107, S2109, S2203, S2204, S2205, S2207, S2209, S2302, S2303, S2304, S2305, S2306, S2308, S2310, but not limited thereto).

[0545] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0546] In some embodiments, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5102, and the interface circuit 5104 can be used to receive signals from the memory 5102 or other devices, and can be used to send signals to the memory 5102 or other devices. For example, the interface circuit 5104 can read instructions stored in the memory 5102 and send the instructions to the processor 5101.

[0547] The communication device 5100 described in the above embodiments may be a terminal, a network device, or a third entity, 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. 6A. 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 and programs; (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.

[0548] 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.

[0549] Chip 5200 includes one or more processors 5201, which are used to perform any of the above methods.

[0550] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, the interface circuit 5202 is connected to memory 5203, and the interface circuit 5202 can be used to receive signals from memory 5203 or other devices, and the interface circuit 5202 can be used to send signals to memory 5203 or other devices. For example, the interface circuit 5202 can read instructions stored in memory 5203 and send the instructions to processor 5201.

[0551] In some embodiments, the interface circuit 5202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2106, S2108, S2201, S2202, S2206, S2208, S2301, S2307, S2309, but not limited thereto), and the processor 5201 performs at least one of other steps (e.g., steps S2102, S2103, S2104, S2105, S2107, S2109, S2203, S2204, S2205, S2207, S2209, S2302, S2303, S2304, S2305, S2306, S2308, S2310, but not limited thereto).

[0552] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0553] In some embodiments, chip 5200 further includes one or more memories 5203 for storing instructions. Optionally, all or part of the memories 5203 may be located outside of chip 5200.

[0554] 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.

[0555] This disclosure also provides a program product that, when executed by the communication device 5100, causes the communication device 5100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0556] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method, characterized in that, The method, executed by a terminal, includes: Based on the power parameter value, the transmission power of the reference signal is determined, wherein the reference signal is a signal used to determine the parameter value associated with the timing advance TA; The reference signal is transmitted to the network device at the aforementioned transmission power.

2. The method as described in claim 1, characterized in that, The parameter value associated with the TA is one or more of the following: Timing advance value (TA), first-order rate of change of TA, second-order rate of change of TA.

3. The method as described in claim 1 or 2, characterized in that, The power parameter values ​​include one or more of the following: target received power, the amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

4. The method according to any one of claims 1-3, characterized in that, The power parameter value is pre-configured by the network device.

5. The method as described in claim 4, characterized in that, The method further includes: Determine the power parameter value.

6. The method as described in claim 5, characterized in that, Determining the power parameter value includes any one of the following: The power parameter value is determined based on the time-frequency resource pattern of the reference signal, wherein different time-frequency resource patterns correspond to different power parameter values; The power parameter value is determined based on the first information sent by the network device, wherein the first information is used to indicate the power parameter value.

7. The method as described in claim 6, characterized in that, The power parameter values ​​corresponding to the different time-frequency resource patterns are different, including one or more of the following differences: Target received power, The amount of frequency domain resources occupied by the reference signal And road loss compensation coefficient.

8. The method as described in claim 6 or 7, characterized in that, The method further includes: The network device receives second information, wherein the second information is used to indicate the time-frequency resource pattern.

9. The method according to any one of claims 1-4, characterized in that, Different time-frequency resource patterns correspond to the same power parameter values.

10. The method according to any one of claims 1-9, characterized in that, Determining the transmission power of the reference signal based on power parameters includes: The transmission power formula of the reference signal is determined based on the time-frequency resource pattern of the reference signal. Different time-frequency resource patterns correspond to different transmission power formulas for the reference signal.

11. The method according to any one of claims 1-10, characterized in that, The method further includes: Determine the duration for which the reference signal is transmitted.

12. The method according to any one of claims 1-11, characterized in that, The method further includes: Determine the time to begin transmitting the reference signal.

13. The method as described in claim 12, characterized in that, The determination of the time to begin transmitting the reference signal includes any of the following: The time to start transmitting the reference signal is determined based on the reception time and the preset duration, wherein the reception time is the reception time of the first information or the second information, the second information is used to indicate the power parameter value, and the second information is used to indicate the time-frequency resource pattern; The time to start sending the reference signal is determined based on a preset reference time point and a preset offset. The time to begin transmitting the reference signal is determined according to the instructions of the network device.

14. The method as described in claim 12 or 13, characterized in that, The method further includes: If the resources used to transmit the reference signal overlap with the resources used to transmit other uplink transmissions in the time domain, the transmission of the reference signal is cancelled.

15. The method according to any one of claims 1-14, characterized in that, The first and second time-frequency resource patterns used for transmitting the reference signal satisfy any one of the following: The time-domain density of the first time-frequency resource pattern is greater than the time-domain density of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern. The number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain. The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain. The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from the number of resources occupied by the second time-frequency resource pattern in the frequency domain. The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

16. A communication method, characterized in that, Performed by a network device, the method includes: The receiving terminal sends a reference signal, wherein the transmission power of the reference signal is determined by the terminal based on a power parameter value; Based on the reference signal, determine the parameter value associated with the timing advance (TA).

17. The method as described in claim 16, characterized in that, The parameter value associated with the TA is one or more of the following: Timing advance value (TA), first-order rate of change of TA, second-order rate of change of TA.

18. The method as described in claim 16 or 17, characterized in that, The power parameter values ​​include one or more of the following: target received power, the amount of frequency domain resources occupied by the reference signal, and path loss compensation coefficient.

19. The method according to any one of claims 16-18, characterized in that, The power parameter value is pre-configured by the network device.

20. The method as described in claim 19, characterized in that, Different time-frequency resource patterns correspond to different power parameter values.

21. The method as described in claim 20, characterized in that, The power parameter values ​​corresponding to the different time-frequency resource patterns are different, including one or more of the following differences: Target received power, The amount of frequency domain resources occupied by the reference signal and road loss compensation coefficient, 22. The method according to any one of claims 19-21, characterized in that, The method further includes: Send first information to the terminal, wherein the first information is used to indicate the power parameter value.

23. The method according to any one of claims 16-22, characterized in that, The method further includes: Send a second message to the terminal, wherein the second message is used to indicate the time-frequency resource pattern.

24. The method according to any one of claims 16-18, characterized in that, Different time-frequency resource patterns correspond to the same power parameter values; and / or, Different time-frequency resource patterns correspond to different formulas for the transmission power of the reference signal.

25. The method as described in any one of claims 16-18, characterized in that, The method further includes: Determine the duration of the reference signal.

26. The method according to any one of claims 16-25, characterized in that, The method further includes: Determine the time at which the terminal begins transmitting the reference signal.

27. The method as described in claim 26, characterized in that, Determining the time at which the terminal begins transmitting the reference signal includes any one of the following: Based on the transmission time and the preset duration, the time at which the terminal begins to transmit the reference signal is determined, wherein the transmission time is the transmission time of the first information or the second information, the first information is used to indicate the power parameter value, and the second information is used to indicate the time-frequency resource pattern; The time at which the terminal begins to send the reference signal is determined based on a preset reference time point and a preset offset. The time indicated to the terminal is determined as the time when the terminal begins to send the reference signal.

28. The method as described in any one of claims 16-27, characterized in that, The first and second time-frequency resource patterns used for transmitting the reference signal satisfy any one of the following: The time-domain density of the first time-frequency resource pattern is greater than the time-domain density of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern. The number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain. The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from that occupied by the second time-frequency resource pattern in the frequency domain. The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is the same as that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is different from the number of resources occupied by the second time-frequency resource pattern in the frequency domain. The time-domain density of the first time-frequency resource pattern is greater than that of the second time-frequency resource pattern. The frequency-domain density of the first time-frequency resource pattern is different from that of the second time-frequency resource pattern. Furthermore, the number of resources occupied by the first time-frequency resource pattern in the frequency domain is the same as that occupied by the second time-frequency resource pattern in the frequency domain.

29. A terminal, characterized in that, include: The processing module is used to determine the transmission power of the reference signal based on the power parameter value, wherein the reference signal is used to determine the parameter value associated with the timing advance TA; A transceiver module is used to transmit the reference signal to a network device at the aforementioned transmission power.

30. A network device, characterized in that, include: A transceiver module is used to receive a reference signal sent by a terminal, wherein the transmission power of the reference signal is determined by the terminal based on a power parameter value; The processing module is used to determine the parameter value associated with the timing advance (TA) based on the reference signal.

31. A communication device, characterized in that, The communication device is used to perform the method according to any one of claims 1 to 15, 16 to 28.

32. A communication system, characterized in that, The device includes a terminal and a network device, wherein the terminal is configured to implement the method of any one of claims 1 to 15, and the network device is configured to implement the method of any one of claims 16 to 28.

33. A storage medium storing instructions, characterized in that, When the instructions are executed on a communication device, the communication device performs the method as described in any one of claims 1 to 15, 16 to 28.

34. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by the communication device, it implements the method of any one of claims 1 to 15, 16 to 28.

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