Communication method, communication device, communication system, storage medium, and program product
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING XIAOMI MOBILE SOFTWARE CO LTD
- Filing Date
- 2024-11-22
- Publication Date
- 2026-07-24
AI Technical Summary
Existing communication systems struggle to effectively and rationally allocate the transmission power of sensing and communication signals, leading to resource waste and performance degradation.
The transmission power of sensing and communication signals is determined by receiving and transmitting reference signals, and adjustments are made to achieve a reasonable allocation of power resources for sensing and communication signals.
It achieves a reasonable allocation of power resources between sensing signals and communication signals, thereby improving the efficiency and performance of the communication system.
Smart Images

Figure CN122460175A_ABST
Abstract
Description
Communication methods, communication equipment, communication systems, storage media and software products Technical Field
[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, communication device, communication system, storage medium, and program product. Background Technology
[0002] Integrated Sensing and Communication (ISAC) is a novel communication technology that integrates sensing capabilities into the design of communication systems. This allows communication systems to provide sensing as a service along with communication to users. By sending and receiving sensing signals, network devices / terminals can sense information such as the distance, speed, and angle of targets / environments, thereby acquiring information about the surrounding targets / environment. Summary of the Invention
[0003] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.
[0004] According to a first aspect of the embodiments of this disclosure, a communication method is provided, executed by a terminal, the method comprising:
[0005] Receive first information sent by a network device, wherein the first information includes at least one of the following: a first reference signal and a second reference signal;
[0006] The first transmission power of the first signal is determined based on the first reference signal, wherein the first signal is a sensing signal;
[0007] The second transmission power of the second signal is determined based on the second reference signal, wherein the second signal is a sensing signal or a communication signal;
[0008] Adjust the first transmission power and / or the second transmission power.
[0009] According to a second aspect of the embodiments of this disclosure, a communication method is provided, performed by a network device, the method comprising:
[0010] Send first information to the terminal, the first information including at least one of the following: a first reference signal and a second reference signal, the first reference signal being used to determine a first transmission power of the first signal and the second reference signal being used to determine a second transmission power of the second signal; the first signal is a sensing signal and the second signal is a sensing signal or a communication signal.
[0011] According to a third aspect of the embodiments of this disclosure, a communication device is provided that can be used to perform the methods described in optional implementations of the first or second aspects.
[0012] According to a fourth aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to perform a method as described in an optional implementation of the first aspect, and the network device is configured to perform a method as described in an optional implementation of the second aspect.
[0013] According to a fifth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform the method as described in an optional implementation of the first or second aspect.
[0014] According to a sixth aspect of the present disclosure, a program product is provided, including at least one of a program and instructions, wherein the program and instructions, when executed by a communication device, implement the method described in an optional implementation of the first or second aspect.
[0015] The technical solution provided in this disclosure can produce the following beneficial effects: receiving first information sent by a network device, the first information including at least one of the following: a first reference signal and a second reference signal; determining a first transmission power of the first signal based on the first reference signal, wherein the first signal is a sensing signal; determining a second transmission power of a second signal based on the second reference signal, wherein the second signal is a sensing signal or a communication signal; and adjusting the first transmission power and / or the second transmission power. In other words, when the terminal simultaneously sends sensing signals and communication signals, or simultaneously sends multiple sensing signals, it can adjust the transmission power of the sensing signals and / or communication signals, thereby achieving a reasonable allocation of power resources for communication signals and sensing signals.
[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0017] 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.
[0018] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
[0019] Figure 1B is a schematic diagram illustrating a sensing mode according to an embodiment of the present disclosure.
[0020] Figure 1C is a schematic diagram of a channel according to an embodiment of the present disclosure.
[0021] Figure 2A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.
[0022] Figure 2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.
[0023] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.
[0024] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.
[0025] Figure 5 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.
[0026] Figure 6A is a schematic diagram of the structure of a terminal proposed in an embodiment of this disclosure.
[0027] Figure 6B is a schematic diagram of the structure of a network device proposed in an embodiment of this disclosure.
[0028] Figure 7A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.
[0029] Figure 7B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation
[0030] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.
[0031] In a first aspect, embodiments of this disclosure provide a communication method executed by a terminal, the method comprising:
[0032] Receive first information sent by a network device, wherein the first information includes at least one of the following: a first reference signal and a second reference signal;
[0033] The first transmission power of the first signal is determined based on the first reference signal, wherein the first signal is a sensing signal;
[0034] The second transmission power of the second signal is determined based on the second reference signal, wherein the second signal is a sensing signal or a communication signal;
[0035] Adjust the first transmission power and / or the second transmission power.
[0036] In the above embodiments, when the terminal transmits sensing signals and communication signals simultaneously, or transmits multiple sensing signals simultaneously, it can adjust the transmission power of the sensing signals and / or communication signals, thereby achieving a reasonable allocation of power resources for communication signals and sensing signals.
[0037] In conjunction with some embodiments of the first aspect, in some embodiments, adjusting the first transmit power and / or the second transmit power includes:
[0038] Adjust the first transmission power and / or the second transmission power according to the second information;
[0039] The second information includes at least one of the following:
[0040] The priority of the first signal;
[0041] The priority of the second signal;
[0042] A first factor is used to determine a third transmit power, which is the minimum transmit power required to transmit the first signal;
[0043] The second factor is used to determine the fourth transmit power, which is the minimum transmit power required to transmit the second signal.
[0044] In the above embodiments, the terminal can adjust the first transmission power and / or the second transmission power according to at least one of the first signal priority, the second signal priority, the minimum transmission power required to transmit the first signal, and the minimum transmission power required to transmit the second signal, so that the accuracy of power adjustment is higher.
[0045] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first transmit power of the first signal based on the first reference signal includes:
[0046] The first path loss value of the first signal is determined based on the first reference signal;
[0047] The first transmission power is determined based on the first path loss value.
[0048] In the above embodiments, the terminal can determine the first transmit power based on the first path loss value of the first signal.
[0049] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first path loss value of the first signal based on the first reference signal includes:
[0050] Based on the first reference signal, a second path loss value and / or a third path loss value of the first signal are determined. The second path loss value is the path loss value of the target channel, which is the channel through which the first reference signal reaches the receiving end after passing through the sensing target. The third path loss value is the path loss value between the transmitting end and the receiving end of the first reference signal.
[0051] The first path loss value is determined based on the second path loss value and / or the third path loss value.
[0052] In the above embodiments, the terminal can determine the first path loss value based on the path loss value of the target channel and / or the path loss value between the transmitter and receiver of the first reference signal, so that the determined first path loss value is more accurate, thereby further improving the accuracy of the first transmission power.
[0053] In conjunction with some embodiments of the first aspect, in some embodiments, determining the second path loss value of the first signal based on the first reference signal includes:
[0054] The first reference signal is measured to obtain the first reference signal received power RSRP and the average transmit power of the first reference signal on a RE, wherein the first RSRP is the average received power of the first reference signal in the target channel;
[0055] The second path loss value is determined based on the average transmit power of the first RSRP and the first reference signal on a RE.
[0056] In the above embodiments, the terminal can calculate the second path loss value based on the average transmit power of the first reference signal on a RE and the average receive power of the first reference signal in the target channel.
[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the first RSRP includes at least one of the following:
[0058] The average received power of the first reference signal on the RE in the target channel;
[0059] The average received power of the direct path of the first reference signal in the target channel on the RE, wherein the direct path is a path composed of a first line-of-sight (LOS) path and a second LOS path, wherein the first LOS path is the LOS path between the transmitter and the sensing target, and the second LOS path is the LOS path between the sensing target and the receiver.
[0060] The average received power of the first reference signal at the i-th path delay in the target channel on the RE, where i is an integer greater than 0.
[0061] In the above embodiments, the first RSRP can be determined in multiple ways, making the determination of the first RSRP more flexible.
[0062] In conjunction with some embodiments of the first aspect, in some embodiments, determining the third path loss value of the first signal based on the first reference signal includes:
[0063] The first reference signal is measured to obtain the second RSRP of the first reference signal and the average transmit power of the first reference signal on a RE, wherein the second RSRP is the average receive power of the first reference signal on the RE;
[0064] The third path loss value is determined based on the average transmit power of the second RSRP and the first reference signal on a RE.
[0065] In the above embodiments, the terminal can calculate the third path loss value based on the average transmit power of the first reference signal on a RE and the average receive power of the first reference signal on the RE.
[0066] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first path loss value based on the second path loss value and / or the third path loss value includes at least one of the following:
[0067] Use the second path loss value as the first path loss value;
[0068] The third path loss value is used as the first path loss value;
[0069] The first path loss value is determined based on the second path loss value, the third path loss value, the first weight, and the second weight.
[0070] The first path loss value is determined based on the second path loss value and the first path loss offset.
[0071] The first path loss value is determined based on the third path loss value and the second path loss offset.
[0072] In the above embodiments, the first path loss value can be determined in multiple ways, making the determination of the first path loss value more flexible.
[0073] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first transmit power based on the first path loss value includes:
[0074] The first transmission power is determined based on the first path loss value and the third information;
[0075] The third information includes at least one of the following:
[0076] The maximum transmission power of the terminal;
[0077] Target received power, which is the received power expected by the receiver;
[0078] The subcarrier spacing used by the first signal;
[0079] The number of resource blocks (RBs) used by the first signal;
[0080] Road loss ratio factor;
[0081] The power offset value is determined based on the modulation scheme and the channel coding rate;
[0082] Dynamic power adjustment amount, which is indicated by the network device.
[0083] In the above embodiments, the terminal can determine the first transmission power based on the first path loss value and the third information, thereby improving the accuracy of the first transmission power.
[0084] In conjunction with some embodiments of the first aspect, in some embodiments, determining the second transmit power of the second signal based on the second reference signal includes:
[0085] The fourth path loss value of the second signal is determined based on the second reference signal;
[0086] The second transmit power is determined based on the fourth path loss value.
[0087] In the above embodiments, the terminal can determine the second transmit power based on the fourth path loss value of the second signal.
[0088] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:
[0089] The network device sends the first path loss value and the fourth path loss value, wherein the first path loss value is used by the network device to determine the first transmit power, and the fourth path loss value is used by the network device to determine the second transmit power.
[0090] In the above embodiments, the terminal can send the first path loss value and the fourth path loss value to the network device so that the network device can determine the first transmission power and the second transmission power.
[0091] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:
[0092] It is determined that the first signal and the second signal overlap in the time domain, and the sum of the first transmission power and the second transmission power is greater than the maximum transmission power of the terminal.
[0093] In the above embodiments, when the terminal determines that the first signal and the second signal overlap in the time domain, and the sum of the first transmission power and the second transmission power is greater than the terminal's maximum transmission power, the terminal adjusts the first transmission power and / or the second transmission power.
[0094] In conjunction with some embodiments of the first aspect, in some embodiments, adjusting the first transmit power and / or the second transmit power according to the second information includes at least one of the following:
[0095] The first signal has a higher priority than the second signal, so the second transmission power is adjusted.
[0096] The first signal has a lower priority than the second signal, so the first transmission power is adjusted.
[0097] Adjust the first transmission power and / or the second transmission power based on the third transmission power and the fourth transmission power.
[0098] In the above embodiments, the terminal can adjust the first transmission power and / or the second transmission power in any of the above methods, making the adjustment of transmission power more flexible.
[0099] In conjunction with some embodiments of the first aspect, in some embodiments, adjusting the second transmit power includes at least one of the following:
[0100] Set the second transmission power to 0;
[0101] The sum of the first transmission power and the fourth transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the first transmission power is taken as the second transmission power.
[0102] In the above embodiments, the terminal can set the second transmission power to 0, that is, discard the second signal. The terminal can also reduce the second transmission power of the second signal while prioritizing the first transmission power of the first signal.
[0103] In conjunction with some embodiments of the first aspect, in some embodiments, adjusting the first transmit power includes at least one of the following:
[0104] Set the first transmission power to 0;
[0105] The sum of the second transmission power and the third transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the second transmission power is taken as the first transmission power.
[0106] In the above embodiments, the terminal can set the first transmission power to 0, that is, discard the first signal. The terminal can also reduce the first transmission power of the first signal while prioritizing the second transmission power of the second signal.
[0107] In conjunction with some embodiments of the first aspect, in some embodiments, adjusting the first transmission power and / or the second transmission power according to the third transmission power and the fourth transmission power includes at least one of the following:
[0108] If the sum of the third and fourth transmission powers is greater than the maximum transmission power of the terminal, the first and / or the second transmission power shall be set to 0.
[0109] If the sum of the third and fourth transmission powers is less than or equal to the maximum transmission power of the terminal, then at least one of the following shall be performed:
[0110] The third transmission power is used as the first transmission power, and the fourth transmission power is used as the second transmission power;
[0111] The third transmission power is used as the first transmission power, and the power difference between the terminal's maximum transmission power and the third transmission power is used as the second transmission power;
[0112] The fourth transmission power is used as the second transmission power, and the power difference between the terminal's maximum transmission power and the fourth transmission power is used as the first transmission power.
[0113] In the above embodiments, the terminal may discard the first signal and / or the second signal, or it may simultaneously reduce the first signal and the second signal according to the third transmission power and the fourth transmission power.
[0114] In conjunction with some embodiments of the first aspect, in some embodiments, the priority of the first signal and the priority of the second signal include at least one of the following:
[0115] The first signal and the second signal are in the same serving cell, and the relationship between the priorities of the first signal and the second signal includes at least one of the following: the priority of the first signal is higher than the priority of the second signal, the priority of the first signal is equal to the priority of the second signal, and the priority of the first signal is lower than the priority of the second signal.
[0116] The first signal is used for the first cell, and the second signal is used for the second cell. The first signal has a higher priority than the second signal.
[0117] The first signal is used in the second cell, and the second signal is used in the first cell. The priority of the first signal is lower than that of the second signal.
[0118] Wherein, the first cell is a serving cell and the second cell is a non-serving cell, or the first cell is a primary cell and the second cell is a secondary cell.
[0119] In the above embodiments, the priorities of the first and second signals of the serving cell are not limited. The priority of the signal in the serving cell is higher than that of the signal in the non-serving cell, and the priority of the signal in the primary cell is higher than that of the signal in the secondary cell.
[0120] Secondly, embodiments of this disclosure provide a communication method executed by a network device, the method comprising:
[0121] Send first information to the terminal, the first information including at least one of the following: a first reference signal and a second reference signal, the first reference signal being used to determine a first transmission power of the first signal and the second reference signal being used to determine a second transmission power of the second signal; the first signal is a sensing signal and the second signal is a sensing signal or a communication signal.
[0122] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:
[0123] Receive the first path loss value and the fourth path loss value sent by the terminal;
[0124] The first transmission power is determined based on the first path loss value;
[0125] The second transmit power is determined based on the fourth path loss value.
[0126] In the above embodiments, the network device can determine the first transmission power based on the first path loss value and the second transmission power based on the fourth path loss value.
[0127] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:
[0128] Adjust the first transmission power and / or the second transmission power according to the second information;
[0129] The second information includes at least one of the following:
[0130] The priority of the first signal;
[0131] The priority of the second signal;
[0132] A first factor is used to determine a third transmit power, which is the minimum transmit power required to transmit the first signal;
[0133] The second factor is used to determine the fourth transmit power, which is the minimum transmit power required to transmit the second signal.
[0134] In the above embodiments, the network device can adjust the first transmission power and / or the second transmission power according to the second information, thereby realizing the rational allocation of communication signal and sensing signal power resources.
[0135] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:
[0136] It is determined that the first signal and the second signal overlap in the time domain, and the sum of the first transmission power and the second transmission power is greater than the maximum transmission power of the terminal.
[0137] In the above embodiments, when the network device determines that the first signal and the second signal overlap in the time domain, and the sum of the first transmission power and the second transmission power is greater than the maximum transmission power of the terminal, it adjusts the first transmission power and / or the second transmission power.
[0138] In conjunction with some embodiments of the second aspect, in some embodiments, adjusting the first transmission power and / or the second transmission power according to the second information includes at least one of the following:
[0139] The first signal has a higher priority than the second signal, so the second transmission power is adjusted.
[0140] The first signal has a lower priority than the second signal, so the first transmission power is adjusted.
[0141] Adjust the first transmission power and / or the second transmission power based on the third transmission power and the fourth transmission power.
[0142] In the above embodiments, the network device can adjust the first transmission power and / or the second transmission power in any of the above methods, making the adjustment of transmission power more flexible.
[0143] In conjunction with some embodiments of the second aspect, in some embodiments, adjusting the second transmit power includes at least one of the following:
[0144] Set the second transmission power to 0;
[0145] The sum of the first transmission power and the fourth transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the first transmission power is taken as the second transmission power.
[0146] In the above embodiments, the network device can set the second transmission power to 0, that is, discard the second signal. The network device can also reduce the second transmission power of the second signal while prioritizing the first transmission power of the first signal.
[0147] In conjunction with some embodiments of the second aspect, in some embodiments, adjusting the first transmit power includes at least one of the following:
[0148] Set the first transmission power to 0;
[0149] The sum of the second transmission power and the third transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the second transmission power is taken as the first transmission power.
[0150] In the above embodiments, the network device can set the first transmission power to 0, that is, discard the first signal. The network device can also reduce the first transmission power of the first signal while giving priority to ensuring the second transmission power of the second signal.
[0151] In conjunction with some embodiments of the second aspect, in some embodiments, adjusting the first transmission power and / or the second transmission power according to the third transmission power and the fourth transmission power includes at least one of the following:
[0152] If the sum of the third and fourth transmission powers is greater than the maximum transmission power of the terminal, the first and / or the second transmission power shall be set to 0.
[0153] If the sum of the third and fourth transmission powers is less than or equal to the maximum transmission power of the terminal, then at least one of the following shall be performed:
[0154] The third transmission power is used as the first transmission power, and the fourth transmission power is used as the second transmission power;
[0155] The third transmission power is used as the first transmission power, and the power difference between the terminal's maximum transmission power and the third transmission power is used as the second transmission power;
[0156] The fourth transmission power is used as the second transmission power, and the power difference between the terminal's maximum transmission power and the fourth transmission power is used as the first transmission power.
[0157] In the above embodiments, the network device may discard the first signal and / or the second signal, or it may simultaneously reduce the first signal and the second signal according to the third transmission power and the fourth transmission power.
[0158] In conjunction with some embodiments of the second aspect, in some embodiments, the priority of the first signal and the priority of the second signal include at least one of the following:
[0159] The first signal and the second signal are in the same serving cell, and the relationship between the priorities of the first signal and the second signal includes at least one of the following: the priority of the first signal is higher than the priority of the second signal, the priority of the first signal is equal to the priority of the second signal, and the priority of the first signal is lower than the priority of the second signal.
[0160] The first signal is used for the first cell, and the second signal is used for the second cell. The first signal has a higher priority than the second signal.
[0161] The first signal is used in the second cell, and the second signal is used in the first cell. The priority of the first signal is lower than that of the second signal.
[0162] Wherein, the first cell is a serving cell and the second cell is a non-serving cell, or the first cell is a primary cell and the second cell is a secondary cell.
[0163] Thirdly, embodiments of this disclosure propose a terminal that may include at least one of a transceiver module and a processing module; wherein the terminal may be used to execute an optional implementation of the first aspect.
[0164] Fourthly, embodiments of this disclosure provide a network device that may include at least one of a transceiver module and a processing module; wherein the network device may be used to perform an optional implementation of the second aspect.
[0165] Fifthly, embodiments of this disclosure provide a terminal that may include one or more processors; wherein the terminal may be used to execute an optional implementation of the first aspect.
[0166] In a sixth aspect, embodiments of this disclosure provide a network device that may include one or more processors; wherein the network device may be used to perform an optional implementation of the second aspect.
[0167] In a seventh aspect, embodiments of this disclosure provide a communication system that may include: a terminal and a network device; wherein the terminal is configured to perform the method described in the optional implementation of the first aspect, and the network device is configured to perform the method described in the optional implementation of the second aspect.
[0168] Eighthly, 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 as described in an optional implementation of the first or second aspect.
[0169] In a ninth aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in an optional implementation of the first or second aspect.
[0170] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in an optional implementation of the first or second aspect.
[0171] Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described in optional implementations of the first or second aspect.
[0172] It is understood that the aforementioned terminals, network devices, communication devices, communication systems, storage media, program products, computer programs, chips, or chip systems can all be used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.
[0173] This disclosure provides a communication method, communication device, communication system, storage medium, and program product. In some embodiments, the terms "information transmission method" and "information processing method," "communication method," etc., can be used interchangeably; the terms "information transmission device" and "information processing device," "communication device," "communication equipment," etc., can be used interchangeably; and the terms "information processing system," "communication system," etc., can be used interchangeably.
[0174] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.
[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 some embodiments, "multiple" can refer to two or more.
[0178] In some embodiments, the terms "at least one of A or B, at least one of A and B", "one or more", "a plurality of", "multiple" and the like can 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 whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.
[0180] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.
[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, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.
[0184] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.
[0185] 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”.
[0186] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “node,” “function,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.
[0187] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).
[0188] In some embodiments, the terms "Access Network Device (AN Device)," "Radio Access Network Device (RAN Device)," "Base Station (BS)," "Radio Base Station," "Fixed Station," "Node," "Access Point," "Transmission Point (TP)," "Reception Point (RP)," "Transmission / Reception Point (TRP)," "Panel," "Antenna Panel," "Antenna Array," "Cell," "Macro Cell," "Small Cell," "Femto Cell," "Pico Cell," "Sector," "Cell Group," "Serving Cell," "Carrier," "Component Carrier," and "Bandwidth Part (BWP)" can be used interchangeably.
[0189] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.
[0190] In some embodiments, access network devices, core network devices, or network devices can be replaced with terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced with communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel or direct channel, and uplink link, downlink, etc., can be replaced with sidelink link or direct link.
[0191] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.
[0192] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.
[0193] In some embodiments, data, information, etc., may be obtained with the user's consent.
[0194] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.
[0195] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1A, the communication system 100 may include a terminal 101 and a network device 102.
[0196] In some embodiments, terminal 101 may include 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.
[0197] In some embodiments, network device 102 may include at least one of access network device and core network device.
[0198] In some embodiments, the access network device may be a node or device that connects a terminal device to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.
[0199] 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.
[0200] 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 protocol layer functions are centrally controlled by the CU, while the remaining part or all protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.
[0201] In some embodiments, the core network equipment may be a single device, multiple devices, or a group of devices. The core network may include at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).
[0202] 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.
[0203] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1A are examples. The communication system may include all or some of the main bodies in FIG1A, or it may include other main bodies outside of FIG1A. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is an example. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.
[0204] 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).
[0205] In some embodiments of this disclosure, by transmitting and receiving sensing signals, the gNB / UE can sense information such as the distance, speed, and angle of the target / environment, and obtain information about the surrounding target / environment for scenarios such as drone detection, intrusion detection, intelligent transportation, and smart factories.
[0206] Figure 1B is a schematic diagram illustrating a sensing mode according to an embodiment of the present disclosure. As shown in Figure 1B, the related art includes six sensing modes: TRP-to-TRP bi-static (dual-station), TRP mono-static (single-station), TRP-to-UE bi-static, UE-to-TRP bi-static, UE-to-UE bi-static, and UE mono-static.
[0207] When receiving sensing signals, the sensing channel passing through the target channel and the sensing channel passing through the background channel can be received simultaneously.
[0208] In some embodiments, the target channel refers to the channel containing target information, that is, the sensing signal is received by the receiver (receiving end) after passing through the target.
[0209] In some embodiments, the background channel refers to a channel that does not contain target information, meaning that the sensing signal is received by the receiver without passing through the target.
[0210] Figure 1C is a channel schematic diagram according to an embodiment of the present disclosure. As shown in Figure 1C, the target channel includes the channel consisting of the link from the transmitter to the target (Tx-target) and the link from the target to the receiver (target-Rx). For the background channel, in mono-static sensing mode, it refers to the channel through which the sensed signal is reflected to the receiver via a cluster; in bi-static sensing mode, it includes the channel through which the sensed signal is reflected to the receiver via a cluster and the channel directly from Tx to Rx. Here, RCS stands for Radar Cross Section, LOS stands for Line of Sight, NLOS stands for Non-Line of Sight, the target-specific channel component can be called the target-specific channel component, and the background channel component can be called the background channel component.
[0211] In some embodiments, when determining the transmission power of the sensing signal, the intended use of the sensing signal must be considered: for sensing a target. In this case, the transmission power of the sensing signal must fully consider the attenuation of the sensing signal after passing through the target in order to determine an appropriate transmission power that meets the sensing performance requirements.
[0212] In some embodiments, when the UE performs sensing and communication simultaneously, the power coordination between sensing signals and communication signals needs to be considered.
[0213] In some embodiments, a reference signal, such as a Synchronization Signal / PBCH (Physical Broadcast Channel) Block (SSB) or a Channel State Information-Reference Signal (CSI-RS), can be configured to measure and acquire the path loss of the communication signal.
[0214] In some embodiments, the reference signal received power (RSRP) is calculated based on the average received power of the reference signal on the resource element (RE) and the transmit power P of the reference signal. C Determine the road loss value PL C For P C -RSRP.
[0215] In some embodiments, the transmit power P of the communication signal is determined based on power configuration parameters (which may include parameters agreed upon by the protocol, configured at higher levels, or dynamically indicated). tx1 An example is shown in formula (1):
[0216] Among them, P CMAX P0 is the maximum transmit power supported by the UE, and M is the target receive power. RB This represents the number of RBs used in the signal, with a subcarrier spacing of SCS#1 (in kHz), and μ taking the value of SCS#1 / 15–1; α is the path loss scaling factor, PL is the path loss value, Δ is the power offset value determined according to the modulation scheme and channel coding rate, and f TPC It is a dynamically adjusted power.
[0217] In some embodiments, the power configuration parameters include the UE's maximum transmit power, target receive power P0, number of RBs used in the signal and subcarrier spacing SCS, path loss scaling factor α, modulation scheme and channel coding rate, and dynamic power adjustment amount.
[0218] In some embodiments, when the UE transmits multiple communication signals simultaneously, the transmission power of each communication signal is determined in the manner described above. There may be a situation where the sum of the transmission powers of multiple communication signals exceeds the maximum transmission power of the UE. In this case, one or more communication signals can be discarded, or the power of one or more communication signals can be reduced, so that the sum of the transmission powers of multiple communication signals does not exceed the maximum transmission power of the UE.
[0219] In some embodiments, the signal power calculation and signal drop / reduction methods do not take into account the differences between the sensed signal and the communication signal:
[0220] The path loss calculation of communication signals takes into account the received power of the reference signal, while the sensing performance of the sensing signal is mainly determined by the received power of the target channel, where the target channel refers to the channel containing the target information.
[0221] When the UE transmits sensing signals and communication signals simultaneously, or transmits multiple sensing signals simultaneously, the specific method of signal discarding / power reduction is undetermined.
[0222] Figure 2A is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 2A, the embodiments of the present disclosure relate to a communication method, which includes:
[0223] This method may include:
[0224] Step S2101: Network device 102 sends first information to terminal 101.
[0225] In some embodiments, terminal 101 receives first information sent by network device 102, but is not limited thereto. Terminal 101 may also receive first information sent by other entities, in which case step S2101 may be omitted.
[0226] In some embodiments, the terminal 101 obtains the first information specified by the protocol, in which case step S2101 can be omitted.
[0227] In some embodiments, the terminal 101 obtains the first information from the upper layer(s), in which case step S2101 can be omitted.
[0228] In some embodiments, the first information includes at least one of the following: a first reference signal and a second reference signal.
[0229] In some embodiments, network device 102 sends a first reference signal to terminal 101, and terminal 101 determines a first transmit power of the first signal based on the first reference signal.
[0230] In some embodiments, network device 102 sends a second reference signal to terminal 101, and terminal 101 determines the second transmission power of the second signal based on the second reference signal.
[0231] In some embodiments, network device 102 sends a first reference signal and a second reference signal to terminal 101. Terminal 101 determines a first transmission power of the first signal based on the first reference signal and a second transmission power of the second signal based on the second reference signal.
[0232] In some embodiments, network device 102 sends second information to terminal 101, and terminal 101 adjusts the first transmission power and / or the second transmission power according to the second information.
[0233] In some embodiments, the first signal is a sensing signal.
[0234] In some embodiments, the second signal is a sensing signal or a communication signal.
[0235] In some embodiments, the sensing signal may be, for example, a signal used to sense information such as distance, speed, and angle of a target / environment.
[0236] In some embodiments, the communication signal may be, for example, a signal other than the sensing signal transmitted between the network device 102 and the terminal 101.
[0237] In some embodiments, the first reference signal may be, for example, an SSB, a CSI-RS, a Sounding Reference Signal (SRS), a UL Demodulation Reference Signal (DMRS), or a DL DMRS. This disclosure does not limit the type of the first reference signal.
[0238] In some embodiments, the second reference signal may be, for example, an SSB, a CSI-RS, an SRS, a UL DMRS, or a DL DMRS. This disclosure does not limit the type of the second reference signal.
[0239] Step S2102: Terminal 101 determines the first path loss value of the first signal based on the first reference signal.
[0240] In some embodiments, after receiving the first reference signal sent by the network device 102, the terminal 101 can measure the first reference signal and determine the first path loss value through the method of the relevant protocol, which will not be elaborated here.
[0241] In some embodiments, after receiving a first reference signal sent by a network device 102, the terminal 101 determines a second path loss value and / or a third path loss value of the first signal based on the first reference signal, and determines the first path loss value based on the second path loss value and / or the third path loss value.
[0242] In some embodiments, the second path loss value is the path loss value of the target channel.
[0243] In some embodiments, the target channel is the channel through which the first reference signal reaches the receiver after passing through the sensing target.
[0244] In some embodiments, the target channel may be a channel containing target information, wherein the target may be, for example, a sensed object. As shown in the dual-station sensing mode in Figure 1C, the target channel includes a channel composed of a Tx-target link and a target-Rx link, and the second path loss value is the path loss value of the channel composed of the Tx-target link and the target-Rx link.
[0245] In some embodiments, the third path loss value is the path loss value between the transmitter and receiver of the first reference signal. As shown in the bi-station sensing mode of Figure 1C, the third path loss value is the path loss value of Tx-Rx.
[0246] In some embodiments, terminal 101 measures the first reference signal to obtain a first RSRP of the first reference signal and an average transmit power of the first reference signal on an RE, and determines the second path loss value based on the first RSRP and the average transmit power of the first reference signal on an RE.
[0247] In some embodiments, the first RSRP is the average received power of the first reference signal in the target channel.
[0248] In some embodiments, the first RSRP includes at least one of the following:
[0249] The average received power of the first reference signal on the RE in the target channel;
[0250] The average received power of the direct path of the first reference signal in the target channel on the RE;
[0251] The average received power of the first reference signal at the i-th path delay in the target channel on the RE, where i is an integer greater than 0.
[0252] In some embodiments, the direct path is a path composed of a first LOS path and a second LOS path. The first LOS path is the LOS path between the transmitter and the sensing target, and the second LOS path is the LOS path between the sensing target and the receiver. As shown in FIG1C, the first LOS path is the LOS path between Tx and target, and the second LOS path is the LOS path between target and Rx.
[0253] In some embodiments, "direct path of the first reference signal" can be understood as the first reference signal propagating from the transmitter to the receiver via the first LOS path and the second LOS path after passing through the target.
[0254] In some embodiments, the first reference signal at the first path delay in the target channel is the first reference signal on the first detected path in the time domain of the target channel.
[0255] It should be understood that the first reference signal at the i-th path delay in the target channel is the first reference signal on the i-th detected path in the time domain of the target channel.
[0256] In some embodiments, the first RSRP may be determined based on one or more path delays among the i path delays of the target channel, and this disclosure does not limit this.
[0257] In some embodiments, the specific content included in the first RSRP may be a protocol pre-defined, higher-level configuration, or dynamic indication, and this disclosure does not limit this.
[0258] In some embodiments, RSRP is L1-RSRP.
[0259] In some embodiments, RSRP is HigherlayerfilteredRSRP obtained by filtering L1-RSRP.
[0260] It should be noted that the method for obtaining HigherlayerfilteredRSRP can be found in the relevant protocol documentation, and will not be elaborated here.
[0261] In some embodiments, after the terminal 101 measures the average transmit power of the first RSRP and the first reference signal on a RE, it can use the difference between the average transmit power of the first reference signal on a RE and the first RSRP as the second path loss value.
[0262] For example, terminal 101 calculates the second path loss value using formula (2): PL2=Pref–RSRP1 (2)
[0263] Wherein, PL2 is the second path loss value, Pref is the average transmit power of the first reference signal RS1 on one RE, and RSRP1 is the first RSRP.
[0264] In some embodiments, terminal 101 measures the first reference signal to obtain a second RSRP of the first reference signal and an average transmit power of the first reference signal on a RE, and determines a third path loss value based on the second RSRP and the average transmit power of the first reference signal on a RE.
[0265] In some embodiments, the second RSRP is the average received power of the first reference signal on the RE.
[0266] In some embodiments, after the terminal 101 measures the average transmit power of the second RSRP and the first reference signal on a RE, it can use the difference between the average transmit power of the first reference signal on a RE and the second RSRP as the third path loss value.
[0267] For example, terminal 101 calculates the third path loss value using formula (3): PL3=Pref–RSRP2 (3)
[0268] Wherein, PL3 is the third path loss value, Pref is the average transmit power of the first reference signal RS2 on one RE, and RSRP2 is the second RSRP.
[0269] In some embodiments, the first reference signal used to determine the second path loss value and the third path loss value includes one or more, and RS1 and RS2 can be any one of them.
[0270] In some embodiments, the first reference signal RS1 used to determine the second path loss value and the first reference signal RS2 used to determine the third path loss value can be the same signal or different signals, and this disclosure does not limit this.
[0271] In some embodiments, terminal 101 determines the first path loss value by at least one of the following:
[0272] Use the second path loss value as the first path loss value;
[0273] Use the third path loss value as the first path loss value;
[0274] The first path loss value is determined based on the second path loss value, the third path loss value, the first weight, and the second weight.
[0275] The first path loss value is determined based on the second path loss value and the first path loss offset.
[0276] The first path loss value is determined based on the third path loss value and the second path loss offset.
[0277] The first path loss value is determined based on the second path loss value, the third path loss value, the first weight, the second weight, and the third path loss offset.
[0278] In some embodiments, the terminal 101 uses the calculated second path loss value PL1 as the first path loss value.
[0279] In some embodiments, the terminal 101 uses the calculated third path loss value PL2 as the first path loss value.
[0280] In some embodiments, terminal 101 calculates the first path loss value based on the second path loss value, the third path loss value, the first weight, and the second weight using formula (4): PL1=a*PL2+b*PL3 (4)
[0281] Wherein, PL1 is the first path loss value, a is the first weight, and b is the second weight.
[0282] In some embodiments, a and b are real numbers.
[0283] In some embodiments, a and b are protocol predefined, high-level configurations, or dynamic indications, which are not limited in this disclosure.
[0284] In some embodiments, the terminal 101 uses the sum of the second path loss value and the first path loss offset as the first path loss value.
[0285] In some embodiments, the first path loss offset is predetermined by the protocol, configured by a higher layer, or dynamically indicated; this disclosure does not limit this.
[0286] In some embodiments, the terminal 101 uses the sum of the third path loss value and the second path loss offset as the first path loss value.
[0287] In some embodiments, the second path loss offset is predetermined by the protocol, configured by a higher layer, or dynamically indicated; this disclosure does not limit this.
[0288] In some embodiments, terminal 101 calculates the first path loss value using formula (5) based on the second path loss value, the third path loss value, the first weight, the second weight, and the third path loss offset: PL1=a*PL2+b*PL3+offset (5)
[0289] Here, offset is the third path loss offset.
[0290] In some embodiments, offset is a real number.
[0291] In some embodiments, offset is a protocol predefined, a higher-level configuration, or a dynamic indication, which is not limited in this disclosure.
[0292] Step S2103: Terminal 101 determines the first transmission power of the first signal based on the first path loss value.
[0293] In some embodiments, terminal 101 determines a first transmit power based on the first path loss value and the third information.
[0294] In some embodiments, the third information includes at least one of the following:
[0295] The maximum transmit power of terminal 101;
[0296] Target received power;
[0297] The subcarrier spacing used in the first signal;
[0298] The number of resource blocks (RBs) used by the first signal;
[0299] Road loss ratio factor;
[0300] Power offset value;
[0301] Dynamic power adjustment amount.
[0302] In some embodiments, the maximum transmit power of terminal 101 can be understood as the maximum transmit power supported by terminal 101.
[0303] In some embodiments, the target received power is the received power desired by the receiver.
[0304] In some embodiments, the power offset value is determined based on the modulation scheme and the channel coding rate.
[0305] In some embodiments, the method for determining the power offset value can be found in the relevant protocol documentation, and will not be elaborated here.
[0306] In some embodiments, the third information includes the maximum transmit power of terminal 101 as agreed upon in the protocol.
[0307] In some embodiments, the information configured at higher layers in the third information includes at least one of the following: target received power, subcarrier spacing used by the first signal, number of RBs used by the first signal, path loss scaling factor, modulation scheme, and channel coding rate.
[0308] In some embodiments, the information in the third information includes at least one of the following: the number of RBs used by the first signal, the amount of dynamic power adjustment, the modulation scheme, and the channel coding rate.
[0309] In some embodiments, the amount of dynamic power adjustment is indicated by network device 102.
[0310] In some embodiments, network device 102 may send at least one of the following to terminal 101: the number of RBs used in the first signal, the amount of dynamic power adjustment, the modulation scheme, and the channel coding rate.
[0311] In some embodiments, terminal 101 can calculate the first transmit power using formula (6):
[0312] Where P1 is the first transmission power, P CMAX P0 is the maximum transmit power of terminal 101, and M is the target receive power. RB1 The first signal uses RBs, μ1 is set to SCS#1 / 15–1, SCS#1 is the subcarrier spacing used by the first signal in kHz, α is the path loss scaling factor, PL1 is the first path loss value, Δ is the power offset value, and f TPC This is the dynamic power adjustment amount.
[0313] Step S2104: Terminal 101 determines the fourth path loss value of the second signal based on the second reference signal.
[0314] In some embodiments, if the second signal is a communication signal, the terminal 101 can determine the fourth path loss value of the second signal based on the second reference signal according to the relevant protocol.
[0315] In some embodiments, if the second signal is a communication signal, the second reference signal and the first reference signal may be the same signal or different signals, and this disclosure does not limit this.
[0316] In some embodiments, if the second signal is a sensing signal, the terminal 101 can refer to the method for determining the first path loss value of the first signal in step S2102 to determine the fourth path loss value of the second signal, which will not be described again here.
[0317] In some embodiments, if the second signal is a sensing signal, the second reference signal and the first reference signal can be the same signal or different signals, and this disclosure does not limit this.
[0318] Step S2105: Terminal 101 determines the second transmission power of the second signal based on the fourth path loss value.
[0319] In some embodiments, terminal 101 can calculate the second transmit power using formula (7):
[0320] Where P2 is the second transmission power, P CMAX P0 is the maximum transmit power of terminal 101, and M is the target receive power. RB2 The number of RBs used for the second signal, μ2 is taken as SCS#1 / 15–1, where SCS#1 is the subcarrier spacing used for the second signal in kHz, α is the path loss scaling factor, PL4 is the fourth path loss value, Δ is the power offset value, and f TPC This is the dynamic power adjustment amount.
[0321] In some embodiments, P0, α, Δ, f in formula (7) TPC The definition can be found in the explanation in step S2103, and will not be repeated here.
[0322] Step S2106: Terminal 101 adjusts the first transmission power and / or the second transmission power according to the second information.
[0323] In some embodiments, the first information may include the second information.
[0324] In some embodiments, terminal 101 predefines second information, where the first information includes a first reference signal and / or a second reference signal, but does not include the second information.
[0325] In some embodiments, the terminal 101 pre-configures second information, where the first information includes a first reference signal and / or a second reference signal, but does not include the second information.
[0326] In some embodiments, the second information may also be a protocol agreement, a high-level configuration, or a dynamic instruction, and this disclosure does not limit this.
[0327] In some embodiments, the second information may include at least one of the following:
[0328] The priority of the first signal;
[0329] The priority of the second signal;
[0330] A first factor is used to determine a third transmit power, which is the minimum transmit power required to transmit the first signal;
[0331] The second factor is used to determine the fourth transmit power, which is the minimum transmit power required to transmit the second signal.
[0332] In some embodiments, the priority of the first signal and the priority of the second signal include at least one of the following:
[0333] In the same serving cell, the relationship between the priority of the first signal and the priority of the second signal includes at least one of the following: the priority of the first signal is higher than the priority of the second signal, the priority of the first signal is equal to the priority of the second signal, and the priority of the first signal is lower than the priority of the second signal.
[0334] The first signal is used for the first cell, and the second signal is used for the second cell. The first signal has a higher priority than the second signal.
[0335] The first signal is used in the second cell, and the second signal is used in the first cell. The first signal has a lower priority than the second signal.
[0336] In this configuration, the first cell is a serving cell and the second cell is a non-serving cell, or the first cell is a primary cell (PCell) or a primary secondary cell (PSCell) and the second cell is a secondary cell (Scell).
[0337] In some embodiments, the first cell is a serving cell and the second cell is a non-serving cell.
[0338] In some embodiments, the first cell is the primary cell and the second cell is the secondary cell.
[0339] In some embodiments, the first cell is a primary cell and the second cell is a secondary cell.
[0340] In some embodiments, if the second signal is a communication signal, the priority of the first signal and the priority of the second signal include at least one of the following:
[0341] In the same serving cell, the first signal has a higher priority than the second signal.
[0342] In the same serving cell, the first signal has a lower priority than the second signal.
[0343] If the first signal and the second signal are in the same serving cell, the priority of the first signal is equal to the priority of the second signal.
[0344] The second signal is used in the first cell, and the first signal is used in the second cell. The priority of the first signal is lower than that of the second signal.
[0345] The second signal is used in the second cell, and the first signal is used in the first cell. The first signal has a higher priority than the second signal.
[0346] In some embodiments, if the second signal is a sensing signal, the priority of the first signal and the priority of the second signal include at least one of the following:
[0347] If the first signal and the second signal are in the same serving cell, the priority of the first signal is equal to the priority of the second signal.
[0348] In the same serving cell, the first signal has a higher priority than the second signal.
[0349] The second signal is used in the first cell, and the first signal is used in the second cell. The priority of the first signal is lower than that of the second signal.
[0350] The second signal is used in the second cell, and the first signal is used in the first cell. The first signal has a higher priority than the second signal.
[0351] In some embodiments, the higher layer can configure the priority of the first signal to be higher than the priority of the second signal.
[0352] In some embodiments, a first signal is used to sense a first moving target, and a second signal is used to sense a second moving target, wherein the moving speed of the first moving target is higher than the moving speed of the second moving target.
[0353] In some embodiments, a first signal is used to sense a first moving target, and a second signal is used to sense a second moving target, wherein the moving speed of the first moving target is lower than the moving speed of the second moving target.
[0354] In some embodiments, a first signal is used to sense a first category of target, and a second signal is used to sense a second category of target. The first category of target is, for example, a person, and the second category of target is, for example, a vehicle, an animal, etc., but this disclosure does not limit the scope of the embodiments.
[0355] In some embodiments, when the priority of the first signal and the priority of the second signal are configured or indicated in different ways, the different ways may correspond to different priorities.
[0356] In one implementation, the priority of the dynamically indicated first signal and the priority of the second signal are higher than the priority of the first signal and the priority of the second signal configured by the higher layer. For example, if the priority of the first signal configured by the higher layer is equal to the priority of the second signal, and the priority of the dynamically indicated first signal is higher than the priority of the second signal, then terminal 101 adopts the approach of prioritizing the first signal over the second signal.
[0357] In some embodiments, the first factor may be a first reduction factor or a first scaling factor.
[0358] In some embodiments, the first scaling factor may be a protocol agreement, a high-level configuration, or a dynamic indication, and this disclosure does not limit this aspect.
[0359] In some embodiments, the second factor may be a second reduction factor or a second scaling factor.
[0360] In some embodiments, the second scaling factor may be a protocol agreement, a high-level configuration, or a dynamic indication, and this disclosure does not limit this.
[0361] In some embodiments, the name of the first information is not limited, and it may be, for example, "power configuration information" or "power configuration parameters".
[0362] In some embodiments, the name of the second information is not limited, and it may be, for example, "power reduction configuration information" or "power reduction configuration parameters".
[0363] In some embodiments, after the terminal 101 determines the first transmit power of the first signal and the second transmit power of the second signal, it can determine whether the first signal and the second signal overlap in the time domain. The time domain positions of the first signal and the second signal can be determined according to higher-level configuration / dynamic indication.
[0364] In some embodiments, terminal 101 determines that the first signal and the second signal overlap in the time domain, and that the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of terminal 101, and adjusts the first transmit power and / or the second transmit power according to the second information.
[0365] In some embodiments, when terminal 101 determines that the first signal and the second signal overlap in the time domain, it can determine whether the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of terminal 101. If the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of terminal 101, it is determined that the first transmit power and / or the second transmit power is required.
[0366] In some embodiments, the terminal 101 adjusts the first transmit power and / or the second transmit power by at least one of the following:
[0367] The first signal has a higher priority than the second signal, so the second transmission power is adjusted.
[0368] The first signal has a lower priority than the second signal, so the first transmission power is adjusted.
[0369] Adjust the first transmission power and / or the second transmission power based on the third and fourth transmission powers.
[0370] In some embodiments, "adjusting the second transmission power" can be understood as adjusting the second transmission power without adjusting the first transmission power.
[0371] In some embodiments, "adjusting the first transmission power" can be understood as adjusting the first transmission power without adjusting the second transmission power.
[0372] In some embodiments, the first signal and the second signal overlap in the time domain, and the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of terminal 101 (P1+P2>P). CMAX If the priority of the first signal is higher than that of the second signal, then the second transmission power is adjusted.
[0373] In some embodiments, adjusting the second transmit power includes at least one of the following:
[0374] Set the second transmission power to 0;
[0375] The sum of the first transmission power and the fourth transmission power is less than or equal to the maximum transmission power of terminal 101. The difference between the maximum transmission power of terminal 101 and the first transmission power is taken as the second transmission power.
[0376] In some embodiments, "setting the second transmit power to 0" can be understood as discarding the second signal. In this case, without adjusting the first transmit power, the performance of the first signal can be guaranteed.
[0377] In some embodiments, the fourth transmit power is the minimum transmit power required to transmit the second signal, and the fourth transmit power can be determined based on a second factor.
[0378] In some embodiments, if the second factor is a second reduction factor, the fourth transmit power can be calculated using formula (8): P4 = P2 - xScale#2 (8)
[0379] Wherein, P1 is the second transmit power, P4 is the fourth transmit power, and xScale#2 is the second reduction factor.
[0380] In some embodiments, the second reduction factor may be a protocol agreement, a high-level configuration, or a dynamic indication, and this disclosure does not limit this.
[0381] In some embodiments, if the second factor is a second scaling factor, the fourth transmit power can be calculated using formula (9): P4 = c#2 * P2 (9)
[0382] Where c#2 is the second scaling factor.
[0383] It should be noted that the second transmission power in formulas (8) and (9) is the second transmission power before adjustment.
[0384] It should be understood that the sum of the first transmission power and the fourth transmission power is less than or equal to the maximum transmission power of terminal 101, indicating that the maximum transmission power of terminal 101 is sufficient to transmit the first signal at the first transmission power and the second signal at the fourth transmission power.
[0385] In some embodiments, if P1 + P4 ≤ P CMAX Then P1′=P1 (the first transmission power remains unchanged), P2′=P CMAX -P1. Where P1′ is the adjusted first transmit power and P2′ is the adjusted second transmit power.
[0386] It should be understood that in P1 + P4 = P CMAX At that time, P CMAX -P1 = P4 can be understood as not adjusting the first transmission power and using the fourth transmission power as the second transmission power. In this way, the second signal can be transmitted while prioritizing the performance of the first signal.
[0387] It should be understood that in P1+P4 <P CMAX At that time, P CMAX -P1>P4 can be understood as not adjusting the first transmission power, and using the transmission power other than the first transmission power from the maximum transmission power of terminal 101 as the second transmission power. In this way, while prioritizing the performance of the first signal, the performance loss of the second signal can be minimized.
[0388] In some embodiments, P1′ = P1 (the first transmit power remains unchanged), P2′ = P CMAX -P1. Where P1′ is the adjusted first transmit power, and P2′ is the adjusted second transmit power. This can be understood as not adjusting the first transmit power, and using the transmit power other than the first transmit power from the maximum transmit power of terminal 101 as the second transmit power. In this way, the power of the second signal is determined after prioritizing the performance of the first signal. When the second signal is not transmitted, the probability of successful demodulation of the second signal is 0. When the transmit power of the second signal is less than the fourth transmit power, the probability of successful demodulation of the second signal decreases, but remains greater than 0. In this case, the performance of the second signal is better than when the second signal is not transmitted.
[0389] In some embodiments, adjusting the first transmit power includes at least one of the following:
[0390] Set the first transmit power to 0;
[0391] The sum of the second and third transmission powers is less than or equal to the maximum transmission power of terminal 101. The difference between the maximum transmission power and the second transmission power of terminal 101 is taken as the first transmission power.
[0392] In some embodiments, "setting the first transmit power to 0" can be understood as discarding the first signal. In this case, without adjusting the second transmit power, the performance of the second signal can be guaranteed.
[0393] In some embodiments, the third transmit power is the minimum transmit power required to transmit the first signal, and the third transmit power can be determined based on a first factor.
[0394] In some embodiments, if the first factor is a first reduction factor, the third transmit power can be calculated using formula (10): P3 = P1 - xScale#1 (10)
[0395] Wherein, P1 is the first transmit power, P3 is the third transmit power, and xScale#1 is the first reduction factor.
[0396] In some embodiments, the first reduction factor may be a protocol agreement, a high-level configuration, or a dynamic indication, and this disclosure does not limit this.
[0397] In some embodiments, if the first factor is a first scaling factor, the third transmit power can be calculated using formula (11): P3 = c#1 * P1 (11)
[0398] Wherein, c#1 is the first scaling factor.
[0399] It should be noted that the first transmission power in formulas (10) and (11) is the first transmission power before adjustment.
[0400] It should be understood that the sum of the second transmission power and the third transmission power is less than or equal to the maximum transmission power of terminal 101, indicating that the maximum transmission power of terminal 101 is sufficient to transmit the second signal at the second transmission power while simultaneously transmitting the first signal at the third transmission power.
[0401] In some embodiments, if P2 + P3 ≤ P CMAX Then P2′=P2 (the second transmission power remains unchanged), P1′=P CMAX -P2. Where P1′ is the adjusted first transmit power and P2′ is the adjusted second transmit power.
[0402] It should be understood that in P2 + P3 = P CMAX At that time, P CMAX -P2 = P3 can be understood as not adjusting the second transmission power and using the third transmission power as the first transmission power. In this way, the first signal can be transmitted while prioritizing the performance of the second signal.
[0403] It should be understood that in P2+P3 <P CMAX At that time, P CMAX -P2>P3 can be understood as not adjusting the second transmission power, and using the transmission power other than the second transmission power from the maximum transmission power of terminal 101 as the first transmission power. In this way, while prioritizing the performance of the second signal, the performance loss of the first signal can be minimized.
[0404] In some embodiments, P2′=P2 (the second transmission power remains unchanged), P1′=P CMAX -P2. Where P1′ is the adjusted first transmit power, and P2′ is the adjusted second transmit power. This can be understood as not adjusting the second transmit power, and using the transmit power other than the second transmit power from the maximum transmit power of terminal 101 as the first transmit power. In this way, the power of the first signal is determined after prioritizing the performance of the second signal. When the first signal is not transmitted, the probability of successful demodulation of the first signal is 0. When the transmit power of the first signal is less than the third transmit power, the probability of successful demodulation of the first signal decreases, but remains greater than 0. In this case, the performance of the first signal is better than when the first signal is not transmitted.
[0405] In some embodiments, adjusting the first transmission power and / or the second transmission power according to the third transmission power and the fourth transmission power includes at least one of the following:
[0406] The sum of the third and fourth transmission powers is greater than the maximum transmission power of terminal 101. Therefore, the first transmission power is set to 0, and the second transmission power is set to min{fourth transmission power, P}. CMAX} or set to min{second transmit power, P CMAX}, min{} indicates selecting the smaller value;
[0407] The sum of the third and fourth transmission powers is greater than the maximum transmission power of terminal 101. Therefore, the second transmission power is set to 0, and the first transmission power is set to min{the third transmission power, P}. CMAX} or set to min{first transmit power, P CMAX};
[0408] If the sum of the third and fourth transmission powers is less than or equal to the maximum transmission power of terminal 101, perform at least one of the following:
[0409] The third transmission power is used as the first transmission power, and the fourth transmission power is used as the second transmission power;
[0410] The third transmission power is used as the first transmission power, and the power difference between the maximum transmission power of terminal 101 and the third transmission power is used as the second transmission power;
[0411] The fourth transmission power is used as the second transmission power, and the power difference between the maximum transmission power of terminal 101 and the fourth transmission power is used as the first transmission power.
[0412] It should be understood that the sum of the third and fourth transmission powers is greater than the maximum transmission power of terminal 101, indicating that the maximum transmission power of terminal 101 cannot simultaneously transmit the first and second signals.
[0413] In some embodiments, if P3 + P4 > P CMAX Then P1′=0 (first transmit power set to 0), P2′=0 (second transmit power set to 0). Where P1′ is the adjusted first transmit power, and P2′ is the adjusted second transmit power.
[0414] In some embodiments, if P3 + P4 > P CMAX And P4≤P CMAX If P1′ = 0, then the second signal is transmitted, and the first signal is discarded. This prioritizes the transmission of the second signal. The second transmission power is set to min{fourth transmission power, P CMAX} or set to min{second transmit power, P CMAX}
[0415] In some embodiments, if P3 + P4 > P CMAX And P3≤P CMAX If P2′ = 0, then the first signal is transmitted, and the second signal is discarded. This prioritizes the transmission of the first signal. The first transmission power is set to min{the third transmission power, P CMAX} or set to min{first transmit power, P CMAX}
[0416] It should be understood that the sum of the third and fourth transmission powers is less than or equal to the maximum transmission power of terminal 101, indicating that the maximum transmission power of terminal 101 is sufficient to simultaneously transmit the first and second signals.
[0417] In some embodiments, if P3 + P4 ≤ P CMAX Then P1′=P3, P2′=P4, meaning that terminal 101 transmits the first signal at the third transmission power and the second signal at the fourth transmission power. In this way, the first and second signals can be transmitted simultaneously.
[0418] In some embodiments, if P3 + P4 ≤ P CMAX Then P1′=P3, P2′=P CMAX-P3 means that terminal 101 transmits the first signal at the third transmission power, and uses the transmission power other than the third transmission power of the maximum transmission power of terminal 101 as the second transmission power. In this way, the first signal can also be transmitted while prioritizing the performance of the second signal.
[0419] In some embodiments, if P3 + P4 ≤ P CMAX Then P2′=P4, P1′=P CMAX -P4 means that terminal 101 transmits the second signal at the fourth transmission power, and uses the transmission power other than the fourth transmission power of the maximum transmission power of terminal 101 as the first transmission power. In this way, the second signal can be transmitted while prioritizing the performance of the first signal.
[0420] In some embodiments, if terminal 101 determines that the first signal and the second signal do not overlap in the time domain, or the sum of the first transmit power and the second transmit power is less than or equal to the maximum transmit power of terminal 101, then the first transmit power and / or the second transmit power are not adjusted, and step S2106 can be omitted.
[0421] For example, if terminal 101 determines that the first signal and the second signal do not overlap in the time domain, then neither the first transmission power nor the second transmission power will exceed the maximum transmission power of terminal 101, and there is no need to adjust the first transmission power and the second transmission power. In this case, step S2106 can be omitted.
[0422] For example, if terminal 101 determines that the sum of the first transmission power and the second transmission power is less than or equal to the maximum transmission power of terminal 101, then there is no need to adjust the first transmission power and the second transmission power, and step S2106 can be omitted.
[0423] Using the above method, when the terminal transmits sensing signals and communication signals simultaneously, or transmits multiple sensing signals simultaneously, it can adjust the transmission power of sensing signals and / or communication signals, thereby achieving a reasonable allocation of power resources for communication signals and sensing signals.
[0424] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.
[0425] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".
[0426] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.
[0427] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".
[0428] In some embodiments, the terms “resource block (RB)”, “physical resource block (PRB)”, “sub-carrier group (SCG)”, “resource element group (REG)”, “PRB pair”, “RB pair”, “resource element (RE)”, and “sub-carrier” can be used interchangeably.
[0429] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) status", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", and "panel" can be used interchangeably.
[0430] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.
[0431] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.
[0432] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.
[0433] In some embodiments, if an arrow in the interaction diagram representing the sending of information, signaling, etc. from one subject to another passes through other subjects, it can be interpreted as the information being forwarded from one subject to another via other subjects, or it can be interpreted as the information being sent from one subject to another without passing through other subjects.
[0434] The methods involved in the embodiments of this disclosure may include at least one of the steps S2101 to S2106 described above. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2104 may be implemented as an independent embodiment, step S2102 + step S2103 may be implemented as an independent embodiment, step S2104 + step S2105 may be implemented as an independent embodiment, step S2101 + step S2102 + step S2103 may be implemented as an independent embodiment, step S2101 + step S2104 + step S2105 may be implemented as an independent embodiment, step S2103 + step S2105 + step S2106 may be implemented as an independent embodiment, but are not limited thereto.
[0435] In some embodiments, the order of any two steps S2101 to S2106 can be interchanged or they can be performed simultaneously. For example, the order of steps S2102 and S2104 can be interchanged or they can be performed simultaneously.
[0436] In some embodiments, steps S2101 to S2106 are optional, and one or more of these steps may be omitted or substituted in different embodiments. For example, step S2106 may be omitted.
[0437] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.
[0438] Figure 2B is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 2B, the embodiments of the present disclosure relate to a communication method, which includes:
[0439] Step S2201: Network device 102 sends first information to terminal 101.
[0440] In some embodiments, terminal 101 receives first information sent by network device 102, but is not limited thereto. Terminal 101 may also receive first information sent by other entities, in which case step S2101 may be omitted.
[0441] In some embodiments, the terminal 101 obtains the first information specified by the protocol, in which case step S2101 can be omitted.
[0442] In some embodiments, the terminal 101 obtains the first information from the upper layer(s), in which case step S2101 can be omitted.
[0443] In some embodiments, the first information includes at least one of the following: a first reference signal and a second reference signal.
[0444] In some embodiments, network device 102 sends a first reference signal to terminal 101, and terminal 101 determines a first transmit power of the first signal based on the first reference signal.
[0445] In some embodiments, network device 102 sends a second reference signal to terminal 101, and terminal 101 determines the second transmission power of the second signal based on the second reference signal.
[0446] In some embodiments, network device 102 sends a first reference signal and a second reference signal to terminal 101. Terminal 101 determines a first transmission power of the first signal based on the first reference signal and a second transmission power of the second signal based on the second reference signal.
[0447] In some embodiments, the first signal is a sensing signal.
[0448] In some embodiments, the second signal is a sensing signal or a communication signal.
[0449] In some embodiments, the sensing signal may be, for example, a signal used to sense information such as distance, speed, and angle of a target / environment.
[0450] In some embodiments, the communication signal may be, for example, a signal other than the sensing signal transmitted between the network device 102 and the terminal 101.
[0451] In some embodiments, the first reference signal may be, for example, SSB, CSI-RS, SRS, UL DMRS, or DL DMRS, and this disclosure does not limit the type of the first reference signal.
[0452] In some embodiments, the second reference signal may be, for example, an SSB, a CSI-RS, an SRS, a UL DMRS, or a DL DMRS. This disclosure does not limit the type of the second reference signal.
[0453] In some embodiments, the name of the first information is not limited, and it may be, for example, "power configuration information" or "power configuration parameters".
[0454] Step S2202: Terminal 101 determines the first path loss value of the first signal based on the first reference signal.
[0455] The optional implementation of step S2202 can be found in the optional implementation of step S2102 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.
[0456] Step S2203: Terminal 101 determines the fourth path loss value of the second signal based on the second reference signal.
[0457] The optional implementation of step S2203 can be found in the optional implementation of step S2104 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.
[0458] Step S2204: Terminal 101 sends the first path loss value and the fourth path loss value to network device 102.
[0459] In some embodiments, network device 102 receives first information sent by terminal 101, but is not limited thereto. Network device 102 may also receive first information sent by other entities, in which case step S2204 may be omitted.
[0460] In some embodiments, after determining the first path loss value of the first signal, the terminal sends the first path loss value to the network device 102.
[0461] In some embodiments, after determining the fourth path loss value of the second signal, the terminal sends the fourth path loss value to the network device 102.
[0462] In some embodiments, after determining the first path loss value of the first signal and the fourth path loss value of the second signal, the terminal sends the first path loss value and the fourth path loss value to the network device 102.
[0463] Step S2205: Network device 102 determines the first transmission power of the first signal based on the first path loss value.
[0464] In some embodiments, network device 102 determines a first transmit power based on the first path loss value and third information.
[0465] In some embodiments, the third information includes at least one of the following:
[0466] The maximum transmit power of terminal 101;
[0467] Target received power;
[0468] The subcarrier spacing used in the first signal;
[0469] The number of RBs used in the first signal;
[0470] Road loss ratio factor;
[0471] Power offset value;
[0472] Dynamic power adjustment amount.
[0473] In some embodiments, the target received power is the received power desired by the receiver.
[0474] In some embodiments, the power offset value is determined based on the modulation scheme and the channel coding rate.
[0475] In some embodiments, the method for determining the power offset value can be found in the relevant protocol documentation, and will not be elaborated here.
[0476] In some embodiments, network device 102 can calculate the first transmit power using formula (6).
[0477] Step S2206: Network device 102 determines the second transmission power of the second signal based on the fourth path loss value.
[0478] In some embodiments, network device 102 can calculate the second transmit power using formula (7).
[0479] Step S2207: Network device 102 adjusts the first transmission power and / or the second transmission power according to the second information.
[0480] In some embodiments, after determining the first transmit power of the first signal and the second transmit power of the second signal, the network device 102 can determine whether the first signal and the second signal overlap in the time domain, and the time domain positions of the first signal and the second signal can be determined according to higher-level configuration / dynamic indication.
[0481] In some embodiments, network device 102 determines that the first signal and the second signal overlap in the time domain, and that the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of terminal 101, and adjusts the first transmit power and / or the second transmit power according to the second information.
[0482] In some embodiments, the second information may include at least one of the following:
[0483] The priority of the first signal;
[0484] The priority of the second signal;
[0485] A first factor is used to determine a third transmit power, which is the minimum transmit power required to transmit the first signal;
[0486] The second factor is used to determine the fourth transmit power, which is the minimum transmit power required to transmit the second signal.
[0487] In some embodiments, the priority of the first signal and the priority of the second signal include at least one of the following:
[0488] In the same serving cell, the relationship between the priority of the first signal and the priority of the second signal includes at least one of the following: the priority of the first signal is higher than the priority of the second signal, the priority of the first signal is equal to the priority of the second signal, and the priority of the first signal is lower than the priority of the second signal.
[0489] The first signal is used for the first cell, and the second signal is used for the second cell. The first signal has a higher priority than the second signal.
[0490] The first signal is used in the second cell, and the second signal is used in the first cell. The first signal has a lower priority than the second signal.
[0491] In this case, the first cell is a serving cell and the second cell is a non-serving cell, or the first cell is a primary cell (PCell) or a primary-secondary cell and the second cell is a secondary cell (Scell).
[0492] In some embodiments, the first cell is a serving cell and the second cell is a non-serving cell.
[0493] In some embodiments, the first cell is the primary cell and the second cell is the secondary cell.
[0494] In some embodiments, the first cell is a primary cell and the second cell is a secondary cell.
[0495] In some embodiments, if the second signal is a communication signal, the priority of the first signal and the priority of the second signal include at least one of the following:
[0496] In the same serving cell, the first signal has a higher priority than the second signal.
[0497] In the same serving cell, the first signal has a lower priority than the second signal.
[0498] If the first signal and the second signal are in the same serving cell, the priority of the first signal is equal to the priority of the second signal.
[0499] The second signal is used in the first cell, and the first signal is used in the second cell. The priority of the first signal is lower than that of the second signal.
[0500] The second signal is used in the second cell, and the first signal is used in the first cell. The first signal has a higher priority than the second signal.
[0501] In some embodiments, if the second signal is a sensing signal, the priority of the first signal and the priority of the second signal include at least one of the following:
[0502] If the first signal and the second signal are in the same serving cell, the priority of the first signal is equal to the priority of the second signal.
[0503] In the same serving cell, the first signal has a higher priority than the second signal.
[0504] The second signal is used in the first cell, and the first signal is used in the second cell. The priority of the first signal is lower than that of the second signal.
[0505] The second signal is used in the second cell, and the first signal is used in the first cell. The first signal has a higher priority than the second signal.
[0506] In some embodiments, the higher layer can configure the priority of the first signal to be higher than the priority of the second signal.
[0507] In some embodiments, a first signal is used to sense a first moving target, and a second signal is used to sense a second moving target, wherein the moving speed of the first moving target is higher than the moving speed of the second moving target.
[0508] In some embodiments, a first signal is used to sense a first moving target, and a second signal is used to sense a second moving target, wherein the moving speed of the first moving target is lower than the moving speed of the second moving target.
[0509] In some embodiments, a first signal is used to sense a first category of target, and a second signal is used to sense a second category of target. The first category of target is, for example, a person, and the second category of target is, for example, a vehicle, an animal, etc., but this disclosure does not limit the scope of the embodiments.
[0510] In some embodiments, when the priority of the first signal and the priority of the second signal are configured or indicated in different ways, the different ways may correspond to different priorities.
[0511] In one implementation, the priority of the dynamically indicated first signal and the priority of the second signal are higher than the priority of the first signal and the priority of the second signal configured by the higher layer. For example, if the priority of the first signal configured by the higher layer is equal to the priority of the second signal, and the priority of the dynamically indicated first signal is higher than the priority of the second signal, then terminal 101 adopts the approach of prioritizing the first signal over the second signal.
[0512] In some embodiments, the first factor may be a first reduction factor or a first scaling factor.
[0513] In some embodiments, the first scaling factor may be a protocol agreement, a high-level configuration, or a dynamic indication, and this disclosure does not limit this aspect.
[0514] In some embodiments, the second factor may be a second reduction factor or a second scaling factor.
[0515] In some embodiments, the second scaling factor may be a protocol agreement, a high-level configuration, or a dynamic indication, and this disclosure does not limit this.
[0516] In some embodiments, the name of the first information is not limited, and it may be, for example, "power configuration information" or "power configuration parameters".
[0517] In some embodiments, the name of the second information is not limited, and it may be, for example, "power reduction configuration information" or "power reduction configuration parameters".
[0518] In some embodiments, when terminal 101 determines that the first signal and the second signal overlap in the time domain, it can determine whether the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of terminal 101. If the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of terminal 101, it is determined that the first transmit power and / or the second transmit power is required.
[0519] In some embodiments, the network device 102 adjusts the first transmit power and / or the second transmit power by at least one of the following:
[0520] The first signal has a higher priority than the second signal, so the second transmission power is adjusted.
[0521] The first signal has a lower priority than the second signal, so the first transmission power is adjusted.
[0522] Adjust the first transmission power and / or the second transmission power based on the third and fourth transmission powers.
[0523] In some embodiments, "adjusting the second transmission power" can be understood as adjusting the second transmission power without adjusting the first transmission power.
[0524] In some embodiments, "adjusting the first transmission power" can be understood as adjusting the first transmission power without adjusting the second transmission power.
[0525] In some embodiments, the first signal and the second signal overlap in the time domain, and the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of terminal 101 (P1+P2>P). CMAX If the priority of the first signal is higher than that of the second signal, then the second transmission power is adjusted.
[0526] In some embodiments, adjusting the second transmit power includes at least one of the following:
[0527] Set the second transmission power to 0;
[0528] The sum of the first transmission power and the fourth transmission power is less than or equal to the maximum transmission power of terminal 101. The difference between the maximum transmission power of terminal 101 and the first transmission power is taken as the second transmission power.
[0529] In some embodiments, "setting the second transmit power to 0" can be understood as discarding the second signal. In this case, without adjusting the first transmit power, the performance of the first signal can be guaranteed.
[0530] In some embodiments, the fourth transmit power is the minimum transmit power required to transmit the second signal, and the fourth transmit power can be determined based on a second factor.
[0531] In some embodiments, if the second factor is a second reduction factor, the fourth transmit power can be calculated using formula (8).
[0532] In some embodiments, the second reduction factor may be a protocol agreement, a high-level configuration, or a dynamic indication, and this disclosure does not limit this.
[0533] In some embodiments, if the second factor is a second proportional factor, the fourth transmit power can be calculated using formula (9).
[0534] It should be noted that the second transmission power in formulas (8) and (9) is the second transmission power before adjustment.
[0535] It should be understood that the sum of the first transmission power and the fourth transmission power is less than or equal to the maximum transmission power of terminal 101, indicating that the maximum transmission power of terminal 101 is sufficient to transmit the first signal at the first transmission power and the second signal at the fourth transmission power.
[0536] In some embodiments, if P1 + P4 ≤ P CMAX Then P1′=P1 (the first transmission power remains unchanged), P2′=P CMAX -P1. Where P1′ is the adjusted first transmit power and P2′ is the adjusted second transmit power.
[0537] It should be understood that in P1 + P4 = P CMAX At that time, P CMAX -P1 = P4 can be understood as not adjusting the first transmission power and using the fourth transmission power as the second transmission power. In this way, the second signal can be transmitted while prioritizing the performance of the first signal.
[0538] It should be understood that in P1+P4 <P CMAX At that time, P CMAX -P1>P4 can be understood as not adjusting the first transmission power, and using the transmission power other than the first transmission power from the maximum transmission power of terminal 101 as the second transmission power. In this way, while prioritizing the performance of the first signal, the performance loss of the second signal can be minimized.
[0539] In some embodiments, P1′ = P1 (the first transmit power remains unchanged), P2′ = P CMAX -P1. Where P1′ is the adjusted first transmit power, and P2′ is the adjusted second transmit power. This can be understood as not adjusting the first transmit power, and using the transmit power other than the first transmit power from the maximum transmit power of terminal 101 as the second transmit power. In this way, the power of the second signal is determined after prioritizing the performance of the first signal. When the second signal is not transmitted, the probability of successful demodulation of the second signal is 0. When the transmit power of the second signal is less than the fourth transmit power, the probability of successful demodulation of the second signal decreases, but remains greater than 0. In this case, the performance of the second signal is better than when the second signal is not transmitted.
[0540] In some embodiments, adjusting the first transmit power includes at least one of the following:
[0541] Set the first transmit power to 0;
[0542] The sum of the second and third transmission powers is less than or equal to the maximum transmission power of terminal 101. The difference between the maximum transmission power and the second transmission power of terminal 101 is taken as the first transmission power.
[0543] In some embodiments, "setting the first transmit power to 0" can be understood as discarding the first signal. In this case, without adjusting the second transmit power, the performance of the second signal can be guaranteed.
[0544] In some embodiments, the third transmit power is the minimum transmit power required to transmit the first signal, and the third transmit power can be determined based on a first factor.
[0545] In some embodiments, if the first factor is a first reduction factor, the third transmit power can be calculated by formula (10).
[0546] In some embodiments, the first reduction factor may be a protocol agreement, a high-level configuration, or a dynamic indication, and this disclosure does not limit this.
[0547] In some embodiments, if the first factor is a first proportional factor, the third transmit power can be calculated by formula (11).
[0548] It should be noted that the first transmission power in formulas (10) and (11) is the first transmission power before adjustment.
[0549] It should be understood that the sum of the second transmission power and the third transmission power is less than or equal to the maximum transmission power of terminal 101, indicating that the maximum transmission power of terminal 101 is sufficient to transmit the second signal at the second transmission power while simultaneously transmitting the first signal at the third transmission power.
[0550] In some embodiments, if P2 + P3 ≤ P CMAX Then P2′=P2 (the second transmission power remains unchanged), P1′=P CMAX -P2. Where P1′ is the adjusted first transmit power and P2′ is the adjusted second transmit power.
[0551] It should be understood that in P2 + P3 = P CMAX At that time, P CMAX -P2 = P3 can be understood as not adjusting the second transmission power and using the third transmission power as the first transmission power. In this way, the first signal can be transmitted while prioritizing the performance of the second signal.
[0552] It should be understood that in P2+P3 <P CMAX At that time, P CMAX-P2>P3 can be understood as not adjusting the second transmission power, and using the transmission power other than the second transmission power from the maximum transmission power of terminal 101 as the first transmission power. In this way, while prioritizing the performance of the second signal, the performance loss of the first signal can be minimized.
[0553] In some embodiments, P2′=P2 (the second transmission power remains unchanged), P1′=P CMAX -P2. Where P1′ is the adjusted first transmit power, and P2′ is the adjusted second transmit power. This can be understood as not adjusting the second transmit power, and using the transmit power other than the second transmit power from the maximum transmit power of terminal 101 as the first transmit power. In this way, the power of the first signal is determined after prioritizing the performance of the second signal. When the first signal is not transmitted, the probability of successful demodulation of the first signal is 0. When the transmit power of the first signal is less than the third transmit power, the probability of successful demodulation of the first signal decreases, but remains greater than 0. In this case, the performance of the first signal is better than when the first signal is not transmitted.
[0554] In some embodiments, adjusting the first transmission power and / or the second transmission power according to the third transmission power and the fourth transmission power includes at least one of the following:
[0555] The sum of the third and fourth transmission powers is greater than the maximum transmission power of terminal 101. Therefore, the first transmission power is set to 0, and the second transmission power is set to min{fourth transmission power, P}. CMAX} or set to min{second transmit power, P CMAX}, min{} indicates selecting the smaller value;
[0556] The sum of the third and fourth transmission powers is greater than the maximum transmission power of terminal 101. Therefore, the second transmission power is set to 0, and the first transmission power is set to min{the third transmission power, P}. CMAX} or set to min{first transmit power, P CMAX};
[0557] If the sum of the third and fourth transmission powers is less than or equal to the maximum transmission power of terminal 101, perform at least one of the following:
[0558] The third transmission power is used as the first transmission power, and the fourth transmission power is used as the second transmission power;
[0559] The third transmission power is used as the first transmission power, and the power difference between the maximum transmission power of terminal 101 and the third transmission power is used as the second transmission power;
[0560] The fourth transmission power is used as the second transmission power, and the power difference between the maximum transmission power of terminal 101 and the fourth transmission power is used as the first transmission power.
[0561] It should be understood that the sum of the third and fourth transmission powers is greater than the maximum transmission power of terminal 101, indicating that the maximum transmission power of terminal 101 cannot simultaneously transmit the first and second signals.
[0562] In some embodiments, if P3 + P4 > P CMAX Then P1′=0 (first transmit power set to 0), P2′=0 (second transmit power set to 0). Where P1′ is the adjusted first transmit power, and P2′ is the adjusted second transmit power.
[0563] In some embodiments, if P3 + P4 > P CMAX And P4≤P CMAX If P1′ = 0, then the second signal is transmitted, and the first signal is discarded. This prioritizes the transmission of the second signal. The second transmission power is set to min{fourth transmission power, P CMAX} or set to min{second transmit power, P CMAX}
[0564] In some embodiments, if P3 + P4 > P CMAX And P3≤P CMAX If P2′ = 0, then the first signal is transmitted, and the second signal is discarded. This prioritizes the transmission of the first signal. The first transmission power is set to min{the third transmission power, P CMAX} or set to min{first transmit power, P CMAX}
[0565] It should be understood that the sum of the third and fourth transmission powers is less than or equal to the maximum transmission power of terminal 101, indicating that the maximum transmission power of terminal 101 is sufficient to simultaneously transmit the first and second signals.
[0566] In some embodiments, if P3 + P4 ≤ P CMAX Then P1′=P3, P2′=P4, meaning that terminal 101 transmits the first signal at the third transmission power and the second signal at the fourth transmission power. In this way, the first and second signals can be transmitted simultaneously.
[0567] In some embodiments, if P3 + P4 ≤ P CMAX Then P1′=P3, P2′=P CMAX-P3 means that terminal 101 transmits the first signal at the third transmission power, and uses the transmission power other than the third transmission power of the maximum transmission power of terminal 101 as the second transmission power. In this way, the first signal can also be transmitted while prioritizing the performance of the second signal.
[0568] In some embodiments, if P3 + P4 ≤ P CMAX Then P2′=P4, P1′=P CMAX -P4 means that terminal 101 transmits the second signal at the fourth transmission power, and uses the transmission power other than the fourth transmission power of the maximum transmission power of terminal 101 as the first transmission power. In this way, the second signal can be transmitted while prioritizing the performance of the first signal.
[0569] In some embodiments, if terminal 101 determines that the first signal and the second signal do not overlap in the time domain, or the sum of the first transmit power and the second transmit power is less than or equal to the maximum transmit power of terminal 101, then the first transmit power and / or the second transmit power are not adjusted, and step S2106 can be omitted.
[0570] For example, if terminal 101 determines that the first signal and the second signal do not overlap in the time domain, then neither the first transmission power nor the second transmission power will exceed the maximum transmission power of terminal 101, and there is no need to adjust the first transmission power and the second transmission power. In this case, step S2106 can be omitted.
[0571] For example, if terminal 101 determines that the sum of the first transmission power and the second transmission power is less than or equal to the maximum transmission power of terminal 101, then there is no need to adjust the first transmission power and the second transmission power, and step S2106 can be omitted.
[0572] Using the above method, when the terminal needs to send sensing signals and communication signals simultaneously, or send multiple sensing signals simultaneously, the network device can adjust the transmission power of the sensing signals and / or communication signals, thereby achieving a reasonable allocation of power resources for communication signals and sensing signals.
[0573] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.
[0574] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".
[0575] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.
[0576] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".
[0577] In some embodiments, the terms “resource block (RB)”, “physical resource block (PRB)”, “sub-carrier group (SCG)”, “resource element group (REG)”, “PRB pair”, “RB pair”, “resource element (RE)”, and “sub-carrier” can be used interchangeably.
[0578] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) status", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", and "panel" can be used interchangeably.
[0579] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.
[0580] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.
[0581] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.
[0582] In some embodiments, if an arrow in the interaction diagram representing the sending of information, signaling, etc. from one subject to another passes through other subjects, it can be interpreted as the information being forwarded from one subject to another via other subjects, or it can be interpreted as the information being sent from one subject to another without passing through other subjects.
[0583] The methods involved in the embodiments of this disclosure may include at least one of the steps S2201 to S2207 described above. For example, step S2101 may be implemented as an independent embodiment, step S2202 may be implemented as an independent embodiment, step S2204 may be implemented as an independent embodiment, step S2202 + step S2203 may be implemented as an independent embodiment, step S2204 + step S2205 may be implemented as an independent embodiment, step S2201 + step S2202 + step S2203 may be implemented as an independent embodiment, step S2201 + step S2204 + step S2205 may be implemented as an independent embodiment, step S2203 + step S2205 + step S2206 may be implemented as an independent embodiment, but are not limited thereto.
[0584] In some embodiments, the order of any two steps S2201 to S2207 can be interchanged or they can be performed simultaneously. For example, the order of steps S2202 and S2204 can be interchanged or they can be performed simultaneously, as can the order of steps S2205 and S2206.
[0585] In some embodiments, steps S2201 to S2207 are optional, and one or more of these steps may be omitted or substituted in different embodiments. For example, step S2207 may be omitted.
[0586] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.
[0587] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3, this embodiment of the present disclosure relates to a communication method that can be executed by a terminal 101. The method may include:
[0588] Step S3101: Receive the first information.
[0589] The optional implementation of step S3101 can be found in the optional implementation of step S2101 in Figure 2A and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.
[0590] Step S3102: Determine the first transmission power of the first signal based on the first reference signal.
[0591] The optional implementation of step S3102 can be found in the optional implementation of steps S2102 to S2103 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.
[0592] Step S3103: Determine the second transmission power of the second signal based on the second reference signal.
[0593] The optional implementation of step S3103 can be found in the optional implementation of steps S2104 to S2105 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.
[0594] Step S3104: Adjust the first transmission power and / or the second transmission power.
[0595] The optional implementation of step S3104 can be found in the optional implementation of step S2106 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.
[0596] In some embodiments, the above steps are all optional.
[0597] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, the present disclosure relates to a communication method that can be executed by a network device 102. The method may include:
[0598] Step S4101: Send the first message.
[0599] The optional implementation of step S4101 can be found in the optional implementation of step S2201 in Figure 2B, and other related parts in the embodiments involved in Figure 2B, which will not be repeated here.
[0600] Step S4102: Receive the first loss value of the first signal and the fourth loss value of the second signal.
[0601] The optional implementation of step S4102 can be found in the optional implementation of step S2204 in Figure 2B, and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.
[0602] Step S4103: Determine the first transmit power of the first signal based on the first path loss value.
[0603] The optional implementation of step S4103 can be found in the optional implementation of step S2205 in Figure 2B, and other related parts in the embodiments involved in Figure 2B, which will not be repeated here.
[0604] Step S4104: Determine the second transmission power of the second signal based on the fourth path loss value.
[0605] The optional implementation of step S4104 can be found in the optional implementation of step S2206 in Figure 2B, as well as other related parts in the embodiments involved in Figure 2B, which will not be repeated here.
[0606] Step S4105: Adjust the first transmission power and / or the second transmission power according to the second information.
[0607] The optional implementation of step S4105 can be found in the optional implementation of step S2207 in Figure 2B, and other related parts in the embodiments involved in Figure 2B, which will not be repeated here.
[0608] In some embodiments, the above steps are all optional.
[0609] In some embodiments, determining the transmit power of the sensing signal / the transmit power of the sensing signal and the communication signal includes:
[0610] Based on the transmission power P1 of the first sensing signal and the transmission power P2 of the second signal, the updated transmission powers of the first sensing signal and the second signal are determined, and the values are transmission power P1′ and transmission power P2′, respectively.
[0611] In some embodiments, updating the transmit power includes at least one of the following:
[0612] The power of the first sensing signal remains unchanged, and the power of the second signal remains unchanged;
[0613] The power of the first sensing signal remains unchanged, while the second signal is discarded;
[0614] The first sensing signal is discarded, while the power of the second signal remains unchanged.
[0615] The power of the first sensing signal remains unchanged, while the power of the second signal is reduced;
[0616] The power of the first sensing signal is reduced, while the power of the second signal remains unchanged;
[0617] The power of the first sensing signal is reduced, and the power of the second signal is reduced.
[0618] The transmission power of the sensing signal is determined based on the first path loss value PL1, which is one of the following:
[0619] Path loss value PL2 for the target channel;
[0620] The road loss value PL3 for Tx-Rx;
[0621] a*PL2+b*PL3+offset#0: Protocol convention / higher-level configuration / dynamic indication of a, b and offset#0, where a, b, and offset#0 are real numbers;
[0622] a*PL2+offset#1: Protocol convention / higher-level configuration / dynamic indication offset#1, offset#1 is the path loss offset, and a can be 1.
[0623] b*PL3+offset#2: Protocol convention / higher-level configuration / dynamic indication offset#2, offset#2 is the path loss offset, and b can be 1.
[0624] In some embodiments, the terminal determines the transmit power of the sensing signal / the transmit power of the sensing signal and the communication signal.
[0625] In some embodiments, the terminal determines the updated transmission power of the first sensing signal and the second signal based on the transmission power P1 of the first sensing signal and the transmission power P2 of the second signal, wherein the values are transmission power P1′ and transmission power P2′, respectively, using at least one of the following methods:
[0626] Method 0: P1′=P1, P2′=P2.
[0627] Method 1: P1′=P1, P2′=0.
[0628] Method 2: P1′=0, P2′=P2.
[0629] Method 3-1: P1′=P1, P2′=P2-1.
[0630] In some embodiments, if P1 + P2 - 2 > PCMAX P2-1 takes the value 0 or P CMAX –P1.
[0631] In some embodiments, if P1 + P2 - 2 ≤ P CMAX P2-1=P CMAX –P1 or P2-1 = P2-2.
[0632] In some embodiments, P2-2 is one of the following:
[0633] P2-2 is determined based on P2 and the reduction factor (xScale#1), where P2-2 = P2 – xScale#1, and xScale#1 is the protocol agreement / higher-level configuration / dynamic indication.
[0634] P2-2 is determined based on P2 and the scaling factor c#1, where P2-2 = c#1 * P2, and c#1 is the protocol agreement / higher-level configuration / dynamic indication.
[0635] In some embodiments, P CMAX This is the maximum transmit power supported by the UE.
[0636] Method 3-2: P1′=P1-1, P2′=P2.
[0637] In some embodiments, if P1-2+P2>P CMAX P1-1 takes the value 0 or P CMAX -P2.
[0638] In some embodiments, if P1-2+P2≤P CMAX P1-1=P CMAX -P2 or P1-1 = P1-2.
[0639] In some embodiments, P1-2 is one of the following:
[0640] P1-2 is determined based on P1 and the reduction factor (xScale#2), where P1-2 = P1 – xScale#2, and xScale#2 is the protocol agreement / higher-level configuration / dynamic indication.
[0641] P1-2 is determined based on P1 and the scaling factor c#2, where P1-2 = c#2 * P1, and c#2 is the protocol agreement / high-level configuration / dynamic indication.
[0642] Method 3-3: P1′=P1-3, P2′=P2-3.
[0643] In some embodiments, if P1-2+P2-2>P CMAX P1-3 and P2-3 are one of the following:
[0644] P1-3 takes the value 0, and P2-3 takes the value 0;
[0645] P1-3 takes the value 0, P2-3 takes the value min{P2-2, P...} CMAX} or min{P2,P CMAX};
[0646] P2-3 takes the value 0, P1-3 takes the value min{P1-2, P...} CMAX} or min{P1,P CMAX}
[0647] In some embodiments, if P1-2+P2-2≤P CMAX P1-3 and P2-3 are one of the following:
[0648] P1-3 = P1-2, P2-3 = P2-2;
[0649] P1-3 = P1-2, P2-3 = P CMAX –P1-3;
[0650] P1-3=P CMAX –P2-3, P2-3=P2-2.
[0651] In some embodiments, the first sensing signal and the second signal do not overlap in the time domain, which is used in mode 0.
[0652] In some embodiments, the first sensing signal and the second signal overlap in the time domain, using one of modes 0 to 3-2.
[0653] In some embodiments, when determining the power of the first sensing signal and the second signal using methods 0 to 3-2, it must be ensured that the power of the first sensing signal does not exceed P. CMAX The power of the second signal does not exceed P. CMAX .
[0654] In some embodiments, the first sensing signal is used to determine P1 using the above embodiments; when the second signal is a sensing signal, P2 is determined using the above embodiments; when the second signal is a communication signal, P2 is determined using related technologies.
[0655] In some embodiments, the transmit power of the sensed signal is determined based on a first path loss value, which is one of the following:
[0656] (1) Path loss value PL2 of the target channel, where the target channel refers to the channel containing the target information, PL2 = Pref#1 – RSRP, where Pref#1 refers to the average transmit power of the first sensing reference signal / communication reference signal on one RE, and RSRP is determined according to one of the following:
[0657] The average received power of the first sensing reference signal / communication reference signal on the RE in the target channel;
[0658] The average received power on the RE of the direct path of the first sensing reference signal / communication reference signal in the target channel;
[0659] The direct path refers to the path composed of the LOS path between Tx and target and the LOS path between target and Rx;
[0660] The average received power of the first sensing reference signal / communication reference signal at the i-th path delay in the target channel on the RE;
[0661] The first sensing reference signal / communication reference signal at the first path delay in the target channel is the first detected path in the time domain of the target channel.
[0662] (2) The path loss value PL3 of Tx-Rx, PL3 = Pref#2 – RSRP, Pref#2 is the average transmit power of the reference signal on a RE, the reference signal is the first sensing reference signal / communication reference signal, and RSRP is the average receive power of the reference signal on the RE.
[0663] (3) a*PL2+b*PL3+offset#0, where a, b and offset#0 are agreed upon by the protocol / higher-level configuration / dynamic indication, and a, b and offset#0 are real numbers, and offset#0 is the road loss offset.
[0664] (4)PL2+offset#1, where offset#1 is the protocol agreement / high-level configuration / dynamic indication, and offset#1 is the road loss offset.
[0665] (5)PL3+offset#2, where offset#2 is the protocol agreement / high-level configuration / dynamic indication, and offset#2 is the road loss offset.
[0666] In some embodiments, a first sensing reference signal is used to determine that the signals of PL2 and PL3 are the same signal, in which case Pref#1 = Pref#2.
[0667] In some embodiments, the RSRP is an L1-RSRP or a Higherlayer-filtered RSRP obtained by filtering an L1-RSRP.
[0668] In some embodiments, the base station determines the transmission power of the sensing signal and / or communication signal in the following manner.
[0669] In some embodiments, the base station determines the updated transmission power of the first sensing signal and the second signal based on the transmission power P1 of the first sensing signal and the transmission power P2 of the second signal, with the values being transmission power P1′ and transmission power P2′, respectively.
[0670] It should be noted that the specific method for the base station to determine the transmission power can refer to the method for the terminal to determine the transmission power in the above embodiments, and will not be repeated here.
[0671] In some embodiments, the terminal determines the transmission power of the sensing signal and / or communication signal in the following manner.
[0672] In some embodiments, the terminal determines the updated transmission power of the first sensing signal and the second signal based on the transmission power P1 of the first sensing signal and the transmission power P2 of the second signal, wherein the values are transmission power P1′ and transmission power P2′, respectively, using at least one of the following methods:
[0673] Method 0: P1′=P1, P2′=P2.
[0674] In some embodiments, the first sensing signal and the second signal do not overlap in the time domain, and mode 0 is used. In this case, the power of the first sensing signal and the second signal does not need to be scaled and will not exceed the maximum transmit power of the UE.
[0675] In some embodiments, the first sensing signal and the second signal overlap in the time domain, and P1 + P2 ≤ P CMAX When using mode 0, the power of the first sensing signal and the second signal does not need to be scaled and will not exceed the UE's maximum transmit power.
[0676] Method 1: P1′=P1, P2′=0.
[0677] In some embodiments, the first sensing signal and the second signal overlap in the time domain, and P1 + P2 > P CMAX In this case, the first sensing signal has a higher priority than the second signal, so the second signal can be discarded to ensure the performance of the first sensing signal.
[0678] Method 2: P1′=0, P2′=P2.
[0679] In some embodiments, the first sensing signal and the second signal overlap in the time domain, and P1 + P2 > P CMAX When the first sensing signal has a lower priority than the second signal, the first sensing signal can be discarded to ensure the performance of the second signal.
[0680] Method 3-1: P1′=P1, P2′=P2-1.
[0681] In some embodiments, the first sensing signal and the second signal overlap in the time domain, and P1 + P2 > P CMAX When the first sensing signal has a higher priority than the second signal, mode 3-1 can be used.
[0682] In some embodiments, if P1 + P2 - 2 > P CMAX P2-1 takes the value 0 or P CMAX –P1,
[0683] In some embodiments, if P1 + P2 - 2 ≤ P CMAX P2-1=P CMAX –P1 or P2-1 = P2-2, where P2-2 is one of the following:
[0684] P2-2 is determined based on P2 and the reduction factor (xScale#1), where P2-2 = P2 – xScale#1, and xScale#1 is the protocol agreement / higher-level configuration / dynamic indication.
[0685] P2-2 is determined based on P2 and the scaling factor c#1, where P2-2 = c#1 * P2, and c#1 is the protocol agreement / high-level configuration / dynamic indication.
[0686] In some embodiments, if P1 + P2 - 2 > P CMAX If P2-1 takes the value 0, then even after reducing P2-2, the condition P1+P2-2 ≤ P still cannot be satisfied. CMAX This means the power of the second signal needs to be further reduced. However, when the power is further reduced, the performance of the second signal cannot be guaranteed, so the second signal can be discarded, meaning P2-1 takes the value 0. If P1+P2-2>P CMAX If P2-1 takes the value 0, then even after reducing P2-2, the condition P1+P2-2 ≤ P still cannot be satisfied. CMAX That is, the power of the second signal needs to be further reduced. However, when the power is further reduced, the performance of the second signal cannot be guaranteed. Therefore, P2-1 can be enabled to take the value P. CMAX –P1, compared to the case where P2-1 is 0, the second signal has a certain probability of being correctly demodulated. If P1+P2-2≤P CMAX P2-1=P CMAX –P1, at this point the performance of the second signal is somewhat compromised, but still acceptable.
[0687] Method 3-2: P1′=P1-1, P2′=P2.
[0688] In some embodiments, the first sensing signal and the second signal overlap in the time domain, and P1 + P2 > PCMAX When the first sensing signal has a lower priority than the second signal, mode 3-2 can be used.
[0689] In some embodiments, if P1-2+P2>P CMAX P1-1 takes the value 0 or P CMAX -P2.
[0690] In some embodiments, if P1-2+P2≤P CMAX P1-1=P CMAX -P2 or P1-1 = P1-2, where P1-2 is one of the following:
[0691] P1-2 is determined based on P1 and the reduction factor (xScale#2), where P1-2 = P1 – xScale#2, and xScale#2 is the protocol agreement / higher-level configuration / dynamic indication.
[0692] P1-2 is determined based on P1 and the scaling factor c#2, where P1-2 = c#2 * P1, and c#2 is the protocol agreement / high-level configuration / dynamic indication.
[0693] In some embodiments, if P1-2+P2>P CMAX If P1-1 takes the value 0, then even after reducing P1-2, the condition P1-2 + P2 ≤ P still cannot be satisfied. CMAX This means the power of the first sensing signal needs to be further reduced. However, when the power is further reduced, the performance of the first sensing signal cannot be guaranteed, so the first sensing signal can be discarded, i.e., P1-1 takes the value 0. If P1-2+P2>P CMAX If P1-1 takes the value 0, then even after reducing P1-2, the condition P1-2 + P2 ≤ P still cannot be satisfied. CMAX That is, the power of the first sensing signal needs to be further reduced. However, when the power is further reduced, the performance of the first sensing signal cannot be guaranteed. Therefore, P1-1 can be enabled to take the value P. CMAX -P2, compared to the case where P1-1 is 0, the first sensing signal has a certain probability of being correctly demodulated. If P1-2+P2≤P CMAX P1-1=P CMAX -P2, at this point the performance of the first sensing signal is somewhat compromised, but still acceptable.
[0694] Method 3-3: P1′=P1-3, P2′=P2-3.
[0695] In some embodiments, the first sensing signal and the second signal overlap in the time domain, and P1 + P2 > P CMAX When the first sensing signal and the second signal have the same priority or it is impossible to determine which signal has a higher priority, method 3-3 can be used.
[0696] In some embodiments, for mode 3-3, the power of both P1 and P2 can be scaled to a certain extent.
[0697] In some embodiments, if P1-2+P2-2>P CMAX P1-3 and P2-3 are one of the following:
[0698] Method 3-3-1: P1-3 is set to 0, P2-3 is set to 0. In this case, neither the first sensing signal nor the second signal is sent, which can ensure the fairness of the transmission of the two signals.
[0699] Method 3-3-2: P1-3 takes the value 0, P2-3 takes the value min{P2-2, P CMAX} or min{P2,P CMAX In this case, the first sensing signal is not sent, but the second sensing signal is sent, which avoids the waste of resources caused by not sending either signal.
[0700] Method 3-3-3: P2-3 takes the value 0, P1-3 takes the value min{P1-2, P CMAX} or min{P1,P CMAX At this point, the first sensing signal is sent, but the second sensing signal is not sent, which avoids wasting resources by not sending either signal.
[0701] In some embodiments, if P1-2+P2-2≤P CMAX P1-3 and P2-3 are one of the following:
[0702] Method 3-3-4: P1-3 = P1-2, P2-3 = P2-2, in this case, the first sensing signal and the second signal are sent at the minimum power that can guarantee certain performance;
[0703] Method 3-3-5: P1-3 = P1-2, P2-3 = P CMAX –P1-3, at this point, compared to method 3-3-4, the power of the second signal can be increased;
[0704] Method 3-3-6: P1-3 = P CMAX –P2-3, P2-3 = P2-2, at this point, compared to method 3-3-4, the power of the first sensing signal can be improved.
[0705] In some embodiments, the terminal transmits N (N is an integer greater than 2) signals, which can be ordered according to their priority, where the priority of the i-th signal is no lower than the priority of the (i+1)-th signal. The transmit power of the N signals can be determined as follows:
[0706] Step 1: Determine the transmission power of the i-th and (i+1)-th signals using methods 0 to 3-3 above, ensuring that the sum of the powers of signals 1 to (i+1) does not exceed P. CMAX ;
[0707] Step 2: Further determine the transmission power of the (i+1)th and (i+2)th signals using methods 0 to 3-3 above (i can take values 1, 2, 3…N-2), ensuring that the sum of the powers of signals 1 to i+2 does not exceed P. CMAX .
[0708] In some embodiments, the original power of the i-th signal is P. i The power of the i-th signal determined in step 1 is P′. i The power of the (i+1)th signal is P′ i+1 In step 2, when determining the transmission power of the (i+1)th and (i+2)th signals, the original power of the (i+1)th signal is P. i+1 ;
[0709] In some embodiments, the original power of the i-th signal is P. i The power of the i-th signal determined in step 1 is P′. i The power of the (i+1)th signal is P′ i+1 In step 2, when determining the transmission power of the (i+1)th and (i+2)th signals, the original power of the (i+1)th signal is P′. i+1 .
[0710] In some embodiments, the priority of the first sensing signal and the second signal can be determined by at least one of the following:
[0711] (1) The second signal is a communication signal:
[0712] In the same serving cell, the first sensing signal has a higher priority than the second signal;
[0713] In the same serving cell, the first sensing signal has a lower priority than the second signal;
[0714] If the first sensing signal and the second signal are in the same serving cell, the priority of the first sensing signal is equal to that of the second signal.
[0715] The second signal is used for the first cell, and the first sensing signal is used for the second cell. The first sensing signal has a lower priority than the second signal.
[0716] Wherein, the first cell is the serving cell and the second cell is the non-serving cell, or the first cell is a PCcell / PScell and the second cell is an Scell.
[0717] (2) The second signal is a sensing signal:
[0718] If the first sensing signal and the second signal are in the same serving cell, the priority of the first sensing signal is equal to that of the second signal.
[0719] In the same serving cell, the first sensing signal has a higher priority than the second signal;
[0720] In higher-level configurations, the first sensing signal has a higher priority than the second signal;
[0721] The first sensing signal is used to sense a target with a first moving speed, and the second signal is used to sense a target with a second moving speed, wherein the first moving speed is higher than the second moving speed.
[0722] The first sensing signal is used to sense a target with a first moving speed, and the second signal is used to sense a target with a second moving speed, wherein the first moving speed is lower than the second moving speed.
[0723] The first sensing signal is used to sense targets of the first category, and the second signal is used to sense targets of the second category.
[0724] The second signal is used for the first cell, and the first sensing signal is used for the second cell. The first sensing signal has a lower priority than the second signal.
[0725] The second signal is used for the second cell, and the first sensing signal is used for the first cell. The first sensing signal has a higher priority than the second signal.
[0726] Wherein, the first cell is the serving cell and the second cell is the non-serving cell, or the first cell is a PCcell / PScell and the second cell is an Scell.
[0727] In some embodiments, the higher-level configuration of the first sensing signal having a higher priority than the second signal includes at least one of the following:
[0728] The first sensing signal is used to sense a target with a first moving speed, and the second signal is used to sense a target with a second moving speed, wherein the first moving speed is higher than the second moving speed.
[0729] The first sensing signal is used to sense a target with a first moving speed, and the second signal is used to sense a target with a second moving speed, wherein the first moving speed is lower than the second moving speed.
[0730] The first sensing signal is used to sense targets of the first category, and the second signal is used to sense targets of the second category.
[0731] In some embodiments, the influence of other factors on the priority determination of the first sensing signal and the second signal may also be considered, such as the dynamic indication signal having a higher priority than the higher-level configuration signal.
[0732] In some embodiments, the terminal determines the transmission power of the sensing signal and / or communication signal in the following manner.
[0733] In some embodiments, the first sensing signal is used to determine P1 using the following embodiments; when the second signal is a sensing signal, P2 is used to determine P2 using the following embodiments; when the second signal is a communication signal, P2 is determined using related technologies.
[0734] In some implementations, the transmit power of the sensed signal is determined based on a first path loss value, which is one of the following:
[0735] (1) Path loss value PL2 of the target channel, where the target channel refers to the channel containing the target information, PL2 = Pref#1 – RSRP, where Pref#1 refers to the average transmit power of the first sensing reference signal / communication reference signal on one RE, and RSRP is determined according to one of the following:
[0736] The average received power of the first sensing reference signal / communication reference signal on the RE in the target channel;
[0737] The average received power on the RE of the direct path of the first sensing reference signal / communication reference signal in the target channel;
[0738] The direct path refers to the path composed of the LOS path between Tx and target and the LOS path between target and Rx;
[0739] The average received power of the first sensing reference signal / communication reference signal at the i-th path delay in the target channel on the RE;
[0740] The first sensing reference signal / communication reference signal at the first path delay in the target channel is the first detected path in the time domain of the target channel.
[0741] (2) The path loss value PL3 of Tx-Rx, PL3 = Pref#2 – RSRP, Pref#2 is the average transmit power of the reference signal on a RE, the reference signal is the first sensing reference signal / communication reference signal, and RSRP is the average receive power of the reference signal on the RE.
[0742] (3) a*PL2+b*PL3+offset#0, where a, b and offset#0 are agreed upon by the protocol / higher-level configuration / dynamic indication, and a, b and offset#0 are real numbers.
[0743] (4)PL2+offset#1, where offset#1 is the protocol agreement / high-level configuration / dynamic indication, and offset#1 is the road loss offset.
[0744] (5)PL3+offset#2, where offset#2 is the protocol agreement / high-level configuration / dynamic indication, and offset#2 is the road loss offset.
[0745] In some embodiments, a first sensing reference signal is used to determine that the signals of PL2 and PL3 are the same signal, in which case Pref#1 = Pref#2.
[0746] In some embodiments, UE#1 may receive a first sensing reference signal, measure the first sensing reference signal, and acquire PL2 / PL3. Optionally, the first sensing reference signal and the first sensing signal are of the same signal category, that is, UE#1 may send the first sensing signal for sensing, or may receive the first sensing signal to acquire PL2 / PL3. The transmitting node of the first sensing reference signal is a base station or UE#2, and the transmitting node of the first sensing signal is UE#1.
[0747] In some embodiments, UE#1 may send a first sensing reference signal, a second node may receive the first sensing reference signal, and the second node may measure the first sensing reference signal to obtain PL2 / PL3. Optionally, the first sensing reference signal and the first sensing signal are of the same signal category, that is, UE#1 may send the first sensing signal for sensing, or it may send the first sensing signal for the second node to measure PL2 and / or PL3, wherein the second node is at least one of the following:
[0748] The second node is the base station, which configures / indicates PL2 and / or PL3 to UE#1;
[0749] The second node is UE#2. UE#2 can feed back the measurement results to the base station, which will then configure / indicate PL2 and / or PL3 to UE#1.
[0750] In some embodiments, UE#1 may receive a communication reference signal, measure the communication reference signal, and acquire PL2 and / or PL3.
[0751] In some embodiments, UE#1 may transmit a communication reference signal, a second node may receive the communication reference signal, and the second node may measure the communication reference signal to obtain PL2 and / or PL3. The second node may be at least one of the following:
[0752] The second node is the network node, which configures / indicates PL2 and / or PL3 to UE#1;
[0753] The second node is UE#2. UE#2 can feed back the measurement results to the network side, and the network will configure / indicate PL2 and / or PL3 to UE#1.
[0754] In some embodiments, the RSRP is an L1-RSRP or a Higherlayer-filtered RSRP obtained by filtering an L1-RSRP, which may be referred to as an L3-RSRP.
[0755] L1-RSRP refers to the result obtained from a single sensing reference signal resource measurement; HigherlayerfilteredRSRP refers to the RSRP obtained by filtering the L1-RSRP results obtained from multiple sensing reference signal resources measurements. The specific filtering method can be configured through higher-level parameters, such as the filtering coefficients configured in QuantityConfig.
[0756] In some embodiments, after determining the first path loss value, the transmit power of the sensing signal can be determined based on parameters agreed upon by other protocols / configured by higher layers and information from dynamic indications.
[0757] In some embodiments, the parameters agreed upon in the protocol include the UE's maximum transmit power.
[0758] In some embodiments, the parameters of the high-level configuration include at least one of the following:
[0759] Target received power P0;
[0760] The number of RBs used in the signal and the subcarrier spacing (SCS);
[0761] Road loss scaling factor α;
[0762] Modulation method and channel coding rate;
[0763] In some embodiments, the information dynamically indicated includes at least one of the following:
[0764] The number of RBs used in the signal;
[0765] Modulation method and channel coding rate;
[0766] Dynamic power adjustment amount.
[0767] In some embodiments, the transmission power of the sensing signal can be calculated using formula (6).
[0768] In some embodiments, when the second signal is a communication signal, the transmission power can be determined using relevant protocols, and this disclosure does not limit this.
[0769] Figure 5 is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 5, the embodiments of the present disclosure relate to a communication method, which includes:
[0770] Step S5101: Network device 102 sends first information to terminal 101.
[0771] In some embodiments, the first information includes a reference signal for measuring the first sensing signal and a reference signal for measuring the second signal, power configuration parameters, the priority of the first sensing signal and the second signal, and power reduction configuration parameters.
[0772] In some embodiments, the first information includes a reference signal for measuring the first sensing signal and a reference signal for the second signal, which are used to determine the path loss of the first sensing signal and the path loss of the second signal, respectively.
[0773] In some embodiments, the transmit power P1 of the first sensing signal and the transmit power P2 of the second signal are determined based on power configuration parameters (which may include parameters agreed upon by the protocol, configured at higher levels, or dynamically indicated).
[0774] In some embodiments, the updated transmit power of the first sensing signal and the second signal is determined based on the priority of the first sensing signal and the second signal, and the power reduction configuration parameters are set to transmit power P1′ and transmit power P2′, respectively.
[0775] Step S5102: Terminal 101 determines the transmission power of the first sensing signal and the transmission power of the second signal.
[0776] In some embodiments, based on the first information, terminal 101 uses the above embodiments to determine the transmission power of the first sensing signal and the second signal.
[0777] In some embodiments of this disclosure, a communication system is provided, which may include a terminal and a network device, wherein the terminal may execute the communication method executed by the terminal in the foregoing embodiments of this disclosure; and the network device may execute the communication method executed by the network device in the foregoing embodiments of this disclosure.
[0778] This disclosure also provides 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., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.
[0779] 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), and 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), such as a Field Programmable Gate Array (FPGA), which 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.
[0780] 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. In addition, it can also be hardware circuits designed for artificial intelligence, which can be understood as ASICs, such as Neural Network Processing Units (NPUs), Tensor Processing Units (TPUs), and Deep Learning Processing Units (DPUs).
[0781] Figure 6A is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. As shown in Figure 6A, the terminal 101 may include at least one of a transceiver module 6101, a processing module 6102, etc. In some embodiments, the transceiver module 6101 is configured to receive first information sent by a network device, the first information including at least one of the following: a first reference signal and a second reference signal; the processing module 6102 is configured to determine a first transmission power of the first signal based on the first reference signal, the first signal being a sensing signal; determine a second transmission power of a second signal based on the second reference signal, the second signal being a sensing signal or a communication signal; and adjust the first transmission power and / or the second transmission power. Optionally, the transceiver module 6101 may be used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 101 in any of the above methods (e.g., steps S2101, S2201, S3101, S5101, but not limited thereto), which will not be elaborated here. Optionally, the processing module 6102 may be used to execute at least one of the other steps executed by the terminal 101 in any of the above methods (e.g., steps S2102, S2103, S2104, S2105, S2106, S3102, S3103, S3104, S5102, but not limited thereto), which will not be elaborated here.
[0782] In some embodiments, the processing module 6102 is further configured to:
[0783] Adjust the first transmission power and / or the second transmission power according to the second information;
[0784] The second information includes at least one of the following:
[0785] The priority of the first signal;
[0786] The priority of the second signal;
[0787] A first factor is used to determine a third transmit power, which is the minimum transmit power required to transmit the first signal;
[0788] The second factor is used to determine the fourth transmit power, which is the minimum transmit power required to transmit the second signal.
[0789] In some embodiments, the processing module 6102 is further configured to:
[0790] The first path loss value of the first signal is determined based on the first reference signal;
[0791] The first transmission power is determined based on the first path loss value.
[0792] In some embodiments, the processing module 6102 is further configured to:
[0793] Based on the first reference signal, a second path loss value and / or a third path loss value of the first signal are determined. The second path loss value is the path loss value of the target channel, which is the channel through which the first reference signal reaches the receiving end after passing through the sensing target. The third path loss value is the path loss value between the transmitting end and the receiving end of the first reference signal.
[0794] The first path loss value is determined based on the second path loss value and / or the third path loss value.
[0795] In some embodiments, the processing module 6102 is further configured to:
[0796] The first reference signal is measured to obtain the first reference signal received power (RSRP) and the average transmit power of the first reference signal on a resource element (RE). The first RSRP is the average received power of the first reference signal in the target channel.
[0797] The second path loss value is determined based on the average transmit power of the first RSRP and the first reference signal on a RE.
[0798] In some embodiments, the first RSRP includes at least one of the following:
[0799] The average received power of the first reference signal on the RE in the target channel;
[0800] The average received power of the direct path of the first reference signal in the target channel on the RE, wherein the direct path is a path composed of a first line-of-sight (LOS) path and a second LOS path, wherein the first LOS path is the LOS path between the transmitter and the sensing target, and the second LOS path is the LOS path between the sensing target and the receiver.
[0801] The average received power of the first reference signal at the i-th path delay in the target channel on the RE, where i is an integer greater than 0.
[0802] In some embodiments, the processing module 6102 is further configured to:
[0803] The first reference signal is measured to obtain the second RSRP of the first reference signal and the average transmit power of the first reference signal on a RE, wherein the second RSRP is the average receive power of the first reference signal on the RE;
[0804] The third path loss value is determined based on the average transmit power of the second RSRP and the first reference signal on a RE.
[0805] In some embodiments, the processing module 6102 is further configured to:
[0806] Use the second path loss value as the first path loss value;
[0807] The third path loss value is used as the first path loss value;
[0808] The first path loss value is determined based on the second path loss value, the third path loss value, the first weight, and the second weight.
[0809] The first path loss value is determined based on the second path loss value and the first path loss offset.
[0810] The first path loss value is determined based on the third path loss value and the second path loss offset.
[0811] In some embodiments, the processing module 6102 is further configured to:
[0812] The first transmission power is determined based on the first path loss value and the third information;
[0813] The third information includes at least one of the following:
[0814] The maximum transmission power of the terminal;
[0815] Target received power, which is the received power expected by the receiver;
[0816] The subcarrier spacing used by the first signal;
[0817] The number of resource blocks (RBs) used by the first signal;
[0818] Road loss ratio factor;
[0819] The power offset value is determined based on the modulation scheme and the channel coding rate;
[0820] Dynamic power adjustment amount, which is indicated by the network device.
[0821] In some embodiments, the processing module 6102 is further configured to:
[0822] The fourth path loss value of the second signal is determined based on the second reference signal;
[0823] The second transmit power is determined based on the fourth path loss value.
[0824] In some embodiments, the transceiver module 6101 is further configured to:
[0825] The network device sends the first path loss value and the fourth path loss value, wherein the first path loss value is used by the network device to determine the first transmit power, and the fourth path loss value is used by the network device to determine the second transmit power.
[0826] In some embodiments, the processing module 6102 is further configured to:
[0827] It is determined that the first signal and the second signal overlap in the time domain, and the sum of the first transmission power and the second transmission power is greater than the maximum transmission power of the terminal.
[0828] In some embodiments, the processing module 6102 is further configured to:
[0829] The first signal has a higher priority than the second signal, so the second transmission power is adjusted.
[0830] The first signal has a lower priority than the second signal, so the first transmission power is adjusted.
[0831] Adjust the first transmission power and / or the second transmission power based on the third transmission power and the fourth transmission power.
[0832] In some embodiments, the processing module 6102 is further configured to:
[0833] Set the second transmission power to 0;
[0834] The sum of the first transmission power and the fourth transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the first transmission power is taken as the second transmission power.
[0835] In some embodiments, the processing module 6102 is further configured to:
[0836] Set the first transmission power to 0;
[0837] The sum of the second transmission power and the third transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the second transmission power is taken as the first transmission power.
[0838] In some embodiments, the processing module 6102 is further configured to:
[0839] If the sum of the third and fourth transmission powers is greater than the maximum transmission power of the terminal, the first and / or the second transmission power shall be set to 0.
[0840] If the sum of the third and fourth transmission powers is less than or equal to the maximum transmission power of the terminal, then at least one of the following shall be performed:
[0841] The third transmission power is used as the first transmission power, and the fourth transmission power is used as the second transmission power;
[0842] The third transmission power is used as the first transmission power, and the power difference between the terminal's maximum transmission power and the third transmission power is used as the second transmission power;
[0843] The fourth transmission power is used as the second transmission power, and the power difference between the terminal's maximum transmission power and the fourth transmission power is used as the first transmission power.
[0844] In some embodiments, the priority of the first signal and the priority of the second signal include at least one of the following:
[0845] The first signal and the second signal are in the same serving cell, and the relationship between the priorities of the first signal and the second signal includes at least one of the following: the priority of the first signal is higher than the priority of the second signal, the priority of the first signal is equal to the priority of the second signal, and the priority of the first signal is lower than the priority of the second signal.
[0846] The first signal is used for the first cell, and the second signal is used for the second cell. The first signal has a higher priority than the second signal.
[0847] The first signal is used in the second cell, and the second signal is used in the first cell. The priority of the first signal is lower than that of the second signal.
[0848] Wherein, the first cell is a serving cell and the second cell is a non-serving cell, or the first cell is a primary cell and the second cell is a secondary cell.
[0849] 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.
[0850] 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.
[0851] Figure 6B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. As shown in Figure 6B, the network device 102 may include at least one of a transceiver module 6201, a processing module 6202, etc. In some embodiments, the transceiver module 6201 is configured to send first information to a terminal, the first information including at least one of the following: a first reference signal and a second reference signal, wherein the first reference signal is used to determine a first transmission power of the first signal, and the second reference signal is used to determine a second transmission power of the second signal; the first signal is a sensing signal, and the second signal is a sensing signal or a communication signal. Optionally, the transceiver module 6201 may be used to perform at least one of the communication steps (e.g., steps S2101, S2201, S4101, S4102, S5101, but not limited thereto) performed by the network device 102 in any of the above methods, which will not be elaborated here. Optionally, the processing module 6202 may be used to perform at least one of the other steps performed by the network device 102 in any of the above methods (e.g., steps S2205, S2206, S2207, S4103, S4104, S4105, but not limited thereto), which will not be elaborated here.
[0852] In some embodiments, the transceiver module 6201 is further configured to:
[0853] Receive the first path loss value and the fourth path loss value sent by the terminal;
[0854] The processing module 6202 is further configured to:
[0855] The first transmission power is determined based on the first path loss value;
[0856] The second transmit power is determined based on the fourth path loss value.
[0857] In some embodiments, the processing module 6202 is further configured to:
[0858] Adjust the first transmission power and / or the second transmission power according to the second information;
[0859] The second information includes at least one of the following:
[0860] The priority of the first signal;
[0861] The priority of the second signal;
[0862] A first factor is used to determine a third transmit power, which is the minimum transmit power required to transmit the first signal;
[0863] The second factor is used to determine the fourth transmit power, which is the minimum transmit power required to transmit the second signal.
[0864] In some embodiments, the processing module 6202 is further configured to:
[0865] It is determined that the first signal and the second signal overlap in the time domain, and the sum of the first transmission power and the second transmission power is greater than the maximum transmission power of the terminal.
[0866] In some embodiments, the processing module 6202 is further configured to:
[0867] The first signal has a higher priority than the second signal, so the second transmission power is adjusted.
[0868] The first signal has a lower priority than the second signal, so the first transmission power is adjusted.
[0869] Adjust the first transmission power and / or the second transmission power based on the third transmission power and the fourth transmission power.
[0870] In some embodiments, the processing module 6202 is further configured to:
[0871] Set the second transmission power to 0;
[0872] The sum of the first transmission power and the fourth transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the first transmission power is taken as the second transmission power.
[0873] In some embodiments, the processing module 6202 is further configured to:
[0874] Set the first transmission power to 0;
[0875] The sum of the second transmission power and the third transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the second transmission power is taken as the first transmission power.
[0876] In some embodiments, the processing module 6202 is further configured to:
[0877] If the sum of the third and fourth transmission powers is greater than the maximum transmission power of the terminal, the first and / or the second transmission power shall be set to 0.
[0878] If the sum of the third and fourth transmission powers is less than or equal to the maximum transmission power of the terminal, then at least one of the following shall be performed:
[0879] The third transmission power is used as the first transmission power, and the fourth transmission power is used as the second transmission power;
[0880] The third transmission power is used as the first transmission power, and the power difference between the terminal's maximum transmission power and the third transmission power is used as the second transmission power;
[0881] The fourth transmission power is used as the second transmission power, and the power difference between the terminal's maximum transmission power and the fourth transmission power is used as the first transmission power.
[0882] In some embodiments, the priority of the first signal and the priority of the second signal include at least one of the following:
[0883] The first signal and the second signal are in the same serving cell, and the relationship between the priorities of the first signal and the second signal includes at least one of the following: the priority of the first signal is higher than the priority of the second signal, the priority of the first signal is equal to the priority of the second signal, and the priority of the first signal is lower than the priority of the second signal.
[0884] The first signal is used for the first cell, and the second signal is used for the second cell. The first signal has a higher priority than the second signal.
[0885] The first signal is used in the second cell, and the second signal is used in the first cell. The priority of the first signal is lower than that of the second signal.
[0886] Wherein, the first cell is a serving cell and the second cell is a non-serving cell, or the first cell is a primary cell and the second cell is a secondary cell.
[0887] 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.
[0888] 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.
[0889] Figure 7A is a schematic diagram of the structure of the communication device 7100 proposed in an embodiment of this disclosure. The communication device 7100 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 first 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 7100 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.
[0890] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 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, IoT devices, IoT device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 7100 is used to execute any of the above methods.
[0891] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may also be located outside the communication device 7100.
[0892] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceivers 7103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2201, S3101, S4101, S4102, S5101, but not limited thereto), and the processor 7101 performs at least one of other steps (e.g., steps S2102, S2103, S2104, S2105, S2106, S3102, S3103, S3104, S4103, S4104, S4105, S5102, but not limited thereto).
[0893] 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.
[0894] In some embodiments, the communication device 7100 may include one or more interface circuits. Optionally, the interface circuit is connected to the memory 7102, and the interface circuit can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit can read instructions stored in the memory 7102 and send the instructions to the processor 7101.
[0895] The communication device 7100 described in the above embodiments may be a first device or an Internet of Things (IoT) device, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7A. The communication device may be a standalone device or may be 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, IoT device, smart IoT device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, first device, cloud device, artificial intelligence device, etc.; (6) others, etc.
[0896] Figure 7B is a schematic diagram of the structure of the chip 7200 according to an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, the schematic diagram of the chip 7200 shown in Figure 7B can be referenced, but is not limited thereto.
[0897] Chip 7200 includes one or more processors 7201, which are used to perform any of the above methods.
[0898] In some embodiments, chip 7200 further includes one or more interface circuits 7203. Optionally, interface circuit 7203 is connected to memory 7202, and interface circuit 7203 can be used to receive signals from memory 7202 or other devices, and interface circuit 7203 can be used to send signals to memory 7202 or other devices. For example, interface circuit 7203 can read instructions stored in memory 7202 and send the instructions to processor 7201.
[0899] In some embodiments, the interface circuit 7203 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2201, S3101, S4101, S4102, S5101, but not limited thereto), and the processor 7201 performs at least one of the other steps (e.g., steps S2102, S2103, S2104, S2105, S2106, S3102, S3103, S3104, S4103, S4104, S4105, S5102, but not limited thereto).
[0900] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.
[0901] In some embodiments, chip 7200 further includes one or more memories 7202 for storing instructions. Optionally, all or part of the memories 7202 may be located outside of chip 7200.
[0902] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device 7100, cause the communication device 7100 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.
[0903] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product may be a computer program product.
[0904] 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: Receive first information sent by a network device, wherein the first information includes at least one of the following: a first reference signal and a second reference signal; The first transmission power of the first signal is determined based on the first reference signal, wherein the first signal is a sensing signal; The second transmission power of the second signal is determined based on the second reference signal, wherein the second signal is a sensing signal or a communication signal; Adjust the first transmission power and / or the second transmission power.
2. The method according to claim 1, characterized in that, The adjustment of the first transmission power and / or the second transmission power includes: Adjust the first transmission power and / or the second transmission power according to the second information; The second information includes at least one of the following: The priority of the first signal; The priority of the second signal; A first factor is used to determine a third transmit power, which is the minimum transmit power required to transmit the first signal; The second factor is used to determine the fourth transmit power, which is the minimum transmit power required to transmit the second signal.
3. The method according to claim 1 or 2, characterized in that, Determining the first transmission power of the first signal based on the first reference signal includes: The first path loss value of the first signal is determined based on the first reference signal; The first transmission power is determined based on the first path loss value.
4. The method according to claim 3, characterized in that, Determining the first path loss value of the first signal based on the first reference signal includes: Based on the first reference signal, a second path loss value and / or a third path loss value of the first signal are determined. The second path loss value is the path loss value of the target channel, which is the channel through which the first reference signal reaches the receiving end after passing through the sensing target. The third path loss value is the path loss value between the transmitting end and the receiving end of the first reference signal. The first path loss value is determined based on the second path loss value and / or the third path loss value.
5. The method according to claim 4, characterized in that, Determining the second path loss value of the first signal based on the first reference signal includes: The first reference signal is measured to obtain the first reference signal received power (RSRP) and the average transmit power of the first reference signal on a resource element (RE). The first RSRP is the average received power of the first reference signal in the target channel. The second path loss value is determined based on the average transmit power of the first RSRP and the first reference signal on a RE.
6. The method according to claim 5, characterized in that, The first RSRP includes at least one of the following: The average received power of the first reference signal on the RE in the target channel; The average received power of the direct path of the first reference signal in the target channel on the RE, wherein the direct path is a path composed of a first line-of-sight (LOS) path and a second LOS path, wherein the first LOS path is the LOS path between the transmitter and the sensing target, and the second LOS path is the LOS path between the sensing target and the receiver. The average received power of the first reference signal at the i-th path delay in the target channel on the RE, where i is an integer greater than 0.
7. The method according to any one of claims 4-6, characterized in that, Based on the first reference signal, determining the third path loss value of the first signal includes: The first reference signal is measured to obtain the second RSRP of the first reference signal and the average transmit power of the first reference signal on a RE, wherein the second RSRP is the average receive power of the first reference signal on the RE; The third path loss value is determined based on the average transmit power of the second RSRP and the first reference signal on a RE.
8. The method according to any one of claims 4-7, characterized in that, Determining the first path loss value based on the second path loss value and / or the third path loss value includes at least one of the following: Use the second path loss value as the first path loss value; The third path loss value is used as the first path loss value; The first path loss value is determined based on the second path loss value, the third path loss value, the first weight, and the second weight. The first path loss value is determined based on the second path loss value and the first path loss offset. The first path loss value is determined based on the third path loss value and the second path loss offset.
9. The method according to any one of claims 3-8, characterized in that, Determining the first transmit power based on the first path loss value includes: The first transmission power is determined based on the first path loss value and the third information; The third information includes at least one of the following: The maximum transmission power of the terminal; Target received power, which is the received power expected by the receiver; The subcarrier spacing used by the first signal; The number of resource blocks (RBs) used by the first signal; Road loss ratio factor; The power offset value is determined based on the modulation scheme and the channel coding rate; Dynamic power adjustment amount, which is indicated by the network device.
10. The method according to any one of claims 3-9, characterized in that, Determining the second transmission power of the second signal based on the second reference signal includes: The fourth path loss value of the second signal is determined based on the second reference signal; The second transmit power is determined based on the fourth path loss value.
11. The method according to claim 10, characterized in that, The method further includes: The network device sends the first path loss value and the fourth path loss value, wherein the first path loss value is used by the network device to determine the first transmit power, and the fourth path loss value is used by the network device to determine the second transmit power.
12. The method according to any one of claims 2-11, characterized in that, The method further includes: It is determined that the first signal and the second signal overlap in the time domain, and the sum of the first transmission power and the second transmission power is greater than the maximum transmission power of the terminal.
13. The method according to claim 12, characterized in that, The adjustment of the first transmission power and / or the second transmission power based on the second information includes at least one of the following: The first signal has a higher priority than the second signal, so the second transmission power is adjusted. The first signal has a lower priority than the second signal, so the first transmission power is adjusted. Adjust the first transmission power and / or the second transmission power based on the third transmission power and the fourth transmission power.
14. The method according to claim 13, characterized in that, The adjustment of the second transmission power includes at least one of the following: Set the second transmission power to 0; The sum of the first transmission power and the fourth transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the first transmission power is taken as the second transmission power.
15. The method according to claim 13 or 14, characterized in that, The adjustment of the first transmission power includes at least one of the following: Set the first transmission power to 0; The sum of the second transmission power and the third transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the second transmission power is taken as the first transmission power.
16. The method according to any one of claims 13-15, characterized in that, The step of adjusting the first transmission power and / or the second transmission power according to the third transmission power and the fourth transmission power includes at least one of the following: If the sum of the third and fourth transmission powers is greater than the maximum transmission power of the terminal, the first and / or the second transmission power shall be set to 0. If the sum of the third and fourth transmission powers is less than or equal to the maximum transmission power of the terminal, then at least one of the following shall be performed: The third transmission power is used as the first transmission power, and the fourth transmission power is used as the second transmission power; The third transmission power is used as the first transmission power, and the power difference between the terminal's maximum transmission power and the third transmission power is used as the second transmission power; The fourth transmission power is used as the second transmission power, and the power difference between the terminal's maximum transmission power and the fourth transmission power is used as the first transmission power.
17. The method according to any one of claims 2-16, characterized in that, The priority of the first signal and the priority of the second signal include at least one of the following: The first signal and the second signal are in the same serving cell, and the relationship between the priorities of the first signal and the second signal includes at least one of the following: the priority of the first signal is higher than the priority of the second signal, the priority of the first signal is equal to the priority of the second signal, and the priority of the first signal is lower than the priority of the second signal. The first signal is used for the first cell, and the second signal is used for the second cell. The first signal has a higher priority than the second signal. The first signal is used in the second cell, and the second signal is used in the first cell. The priority of the first signal is lower than that of the second signal. Wherein, the first cell is a serving cell and the second cell is a non-serving cell, or the first cell is a primary cell and the second cell is a secondary cell.
18. A communication method, characterized in that, Performed by a network device, the method includes: Send first information to the terminal, the first information including at least one of the following: a first reference signal and a second reference signal, the first reference signal being used to determine a first transmission power of the first signal and the second reference signal being used to determine a second transmission power of the second signal; the first signal is a sensing signal and the second signal is a sensing signal or a communication signal.
19. The method according to claim 18, characterized in that, The method further includes: Receive the first path loss value and the fourth path loss value sent by the terminal; The first transmission power is determined based on the first path loss value; The second transmit power is determined based on the fourth path loss value.
20. The method according to claim 19, characterized in that, The method further includes: Adjust the first transmission power and / or the second transmission power according to the second information; The second information includes at least one of the following: The priority of the first signal; The priority of the second signal; A first factor is used to determine a third transmit power, which is the minimum transmit power required to transmit the first signal; The second factor is used to determine the fourth transmit power, which is the minimum transmit power required to transmit the second signal.
21. The method according to claim 20, characterized in that, The method further includes: It is determined that the first signal and the second signal overlap in the time domain, and the sum of the first transmission power and the second transmission power is greater than the maximum transmission power of the terminal.
22. The method according to claim 21, characterized in that, The adjustment of the first transmission power and / or the second transmission power based on the second information includes at least one of the following: The first signal has a higher priority than the second signal, so the second transmission power is adjusted. The first signal has a lower priority than the second signal, so the first transmission power is adjusted. Adjust the first transmission power and / or the second transmission power based on the third transmission power and the fourth transmission power.
23. The method according to claim 22, characterized in that, The adjustment of the second transmission power includes at least one of the following: Set the second transmission power to 0; The sum of the first transmission power and the fourth transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the first transmission power is taken as the second transmission power.
24. The method according to claim 22 or 23, characterized in that, The adjustment of the first transmission power includes at least one of the following: Set the first transmission power to 0; The sum of the second transmission power and the third transmission power is less than or equal to the maximum transmission power of the terminal, and the difference between the maximum transmission power of the terminal and the second transmission power is taken as the first transmission power.
25. The method according to any one of claims 22-24, characterized in that, The step of adjusting the first transmission power and / or the second transmission power according to the third transmission power and the fourth transmission power includes at least one of the following: If the sum of the third and fourth transmission powers is greater than the maximum transmission power of the terminal, the first and / or the second transmission power shall be set to 0. If the sum of the third and fourth transmission powers is less than or equal to the maximum transmission power of the terminal, then at least one of the following shall be performed: The third transmission power is used as the first transmission power, and the fourth transmission power is used as the second transmission power; The third transmission power is used as the first transmission power, and the power difference between the terminal's maximum transmission power and the third transmission power is used as the second transmission power; The fourth transmission power is used as the second transmission power, and the power difference between the terminal's maximum transmission power and the fourth transmission power is used as the first transmission power.
26. The method according to any one of claims 20-25, characterized in that, The priority of the first signal and the priority of the second signal include at least one of the following: The first signal and the second signal are in the same serving cell, and the relationship between the priorities of the first signal and the second signal includes at least one of the following: the priority of the first signal is higher than the priority of the second signal, the priority of the first signal is equal to the priority of the second signal, and the priority of the first signal is lower than the priority of the second signal. The first signal is used for the first cell, and the second signal is used for the second cell. The first signal has a higher priority than the second signal. The first signal is used in the second cell, and the second signal is used in the first cell. The priority of the first signal is lower than that of the second signal. Wherein, the first cell is a serving cell and the second cell is a non-serving cell, or the first cell is a primary cell and the second cell is a secondary cell.
27. A communication device, characterized in that, The communication device is used to perform the communication method according to any one of claims 1-17 and 18-26.
28. A communication system, characterized in that, The device includes a terminal and a network device, wherein the terminal is configured to implement the communication method according to any one of claims 1-17, and the network device is configured to implement the communication method according to any one of claims 18-26.
29. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the communication method as described in any one of claims 1-17 and 18-26.
30. 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 a communication device, it implements the steps of the method according to any one of claims 1-17, 18-26.