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

Abstract

The present disclosure relates to a communication method, a communication device, a communication system, a storage medium, and a program product. The communication method comprises: determining, by a terminal, power information, the power information being used by a first device to determine a transmission power of a continuous wave (CW) transmitted to a second device. The present disclosure enables the first device to more quickly adjust the power of the CW transmitted, thereby improving communication efficiency.

Description

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

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a communication method, a communication device, a communication system, a storage medium and a program product. BACKGROUND

[0002] Ambient Internet Of Things (A-IoT) is a new Internet of Things technology. Currently, some A-IoT devices have a peak power consumption of 1 microwatt (μw) or several hundred μw, have energy storage capability, but cannot generate or amplify signals independently, and use a backscattering working mode. For example, when sending information, the A-IoT device needs to be provided with a continuous wave (CW) for backscattering by the outside world. A device that provides the CW for the A-IoT device can be referred to as a CW node.

[0003] SUMMARY

[0004] In a scenario in which a network device controls a CW node, the latency of control signaling is relatively long.

[0005] Embodiments of the present disclosure provide a communication method, a communication device, a communication system, a storage medium and a program product.

[0006] According to a first aspect of embodiments of the present disclosure, a communication method is provided. The method comprises: determining, by a terminal, power information, the power information being used by a first device to determine a transmission power of a continuous electromagnetic wave (CW) transmitted to a second device.

[0007] According to a second aspect of embodiments of the present disclosure, a communication method is provided. The method comprises: transmitting, by a network device, at least one of a first RSSI threshold and a first value, and a second RSSI threshold to a terminal; the at least one of the first RSSI threshold and the first value, and the second RSSI threshold is used to determine power information; and the power adjustment value is used by a first device to determine a transmission power of a continuous electromagnetic wave (CW) transmitted to a second device.

[0008] According to a third aspect of embodiments of the present disclosure, a communication method is provided. The method comprises: receiving, by a first device, a power adjustment value transmitted by a terminal; or, receiving, by the first device, a power adjustment value transmitted by a network device; the power adjustment value is used by the first device to determine a transmission power of a continuous electromagnetic wave (CW) transmitted to a second device.

[0009] According to a fourth aspect of the embodiments of the present disclosure, a communication method is provided. The method comprises: a second device sending a first signal to a terminal, the first signal being used to measure an RSSI value, the RSSI being used to determine power information, the power information being used by a first device to determine a transmission power of a continuous electromagnetic wave (CW) sent by the first device to the second device.

[0010] According to a fifth aspect of the embodiments of the present disclosure, a communication method is provided. The method comprises: a terminal determining power information, the power information being used by a first device to determine a transmission power of a continuous electromagnetic wave (CW) sent by the first device to a second device; the power information comprising a power adjustment value or an RSSI value; the terminal sending the power adjustment value to the first device; or, the terminal sending an RSSI value to a network device, the network device determining a power adjustment value based on the RSSI value and sending the power adjustment value to the first device; the first device receiving the power adjustment value.

[0011] According to a sixth aspect of the embodiments of the present disclosure, a terminal is provided. The terminal comprises: a processing module configured to determine, by the terminal, power information, the power information being used by a first device to determine a transmission power of a continuous electromagnetic wave (CW) sent by the first device to a second device.

[0012] According to a seventh aspect of the embodiments of the present disclosure, a network device is provided. The network device comprises: a transceiver configured to send a first RSSI threshold or a first value or a second RSSI threshold to a terminal, the first RSSI threshold or the first value or the second RSSI threshold being used to determine power information, the power adjustment value being used by a first device to determine a transmission power of a continuous electromagnetic wave (CW) sent by the first device to a second device.

[0013] According to an eighth aspect of the embodiments of the present disclosure, a first device is provided. The first device comprises: a transceiver configured to receive a power adjustment value sent by a terminal or a power adjustment value sent by a network device, the power adjustment value being used by the first device to determine a transmission power of a continuous electromagnetic wave (CW) sent by the first device to a second device.

[0014] According to a ninth aspect of the embodiments of the present disclosure, a second device is provided. The second device comprises: a transceiver configured to send a first signal to a terminal, the first signal being used to measure an RSSI value, the RSSI being used to determine power information, the power information being used by a first device to determine a transmission power of a continuous electromagnetic wave (CW) sent by the first device to the second device.

[0015] According to a tenth aspect of the embodiments of the present disclosure, a terminal is provided. The terminal comprises: one or more processors; and wherein the terminal is configured to perform the first aspect and any one of the communication methods in the first aspect.

[0016] According to a twelfth aspect of the embodiments of the present disclosure, a first device is provided, including one or more processors; and the network device is configured to perform the third aspect and any one of the communication methods in the third aspect.

[0017] According to a twelfth aspect of the embodiments of the present disclosure, a first device is provided, including one or more processors; and the network device is configured to perform the third aspect and any one of the communication methods in the third aspect.

[0018] According to a twelfth aspect of the embodiments of the present disclosure, a first device is provided, including one or more processors; and the network device is configured to perform the third aspect and any one of the communication methods in the third aspect.

[0019] According to a twelfth aspect of the embodiments of the present disclosure, a first device is provided, including one or more processors; and the network device is configured to perform the third aspect and any one of the communication methods in the third aspect.

[0020] According to a twelfth aspect of the embodiments of the present disclosure, a first device is provided, including one or more processors; and the network device is configured to perform the third aspect and any one of the communication methods in the third aspect.

[0021] According to a twelfth aspect of the embodiments of the present disclosure, a first device is provided, including one or more processors; and the network device is configured to perform the third aspect and any one of the communication methods in the third aspect.

[0022] The present disclosure determines the power information by the terminal, and the power information is used by the first device to determine the power of sending the CW to the second device, thereby realizing the control of the first device by the terminal, reducing the time delay, making the first device adjust the power of sending the CW more quickly, and improving the communication efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiments, and the following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0024] FIG. 1a is a schematic diagram of a deployment structure of an A-IoT device.

[0025] FIG. 1b is a schematic diagram of a deployment structure of an A-IoT device.

[0026] FIG. 1c is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0027] FIG. 2a is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure.

[0028] FIG. 2b is a schematic diagram of a transmission occasion of a first signal and a second time length according to an exemplary embodiment of the present disclosure.

[0029] FIG. 3a is a flowchart of a communication method according to an embodiment of the present disclosure.

[0030] FIG. 3b is a flowchart of a communication method according to an embodiment of the present disclosure.

[0031] FIG. 4a is a flowchart of a communication method according to an embodiment of the present disclosure.

[0032] FIG. 4b is a flowchart of a communication method according to an embodiment of the present disclosure.

[0033] FIG. 5 is a flowchart of a communication method according to an embodiment of the present disclosure.

[0034] FIG. 6 is a flowchart of a communication method according to an embodiment of the present disclosure.

[0035] FIG. 7 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure.

[0036] FIG. 8a is a schematic diagram of a structure of a terminal according to an embodiment of the present disclosure.

[0037] FIG. 8b is a schematic diagram of a structure of a network device according to an embodiment of the present disclosure.

[0038] FIG. 8c is a schematic diagram of a structure of a first device according to an embodiment of the present disclosure.

[0039] FIG. 8d is a schematic diagram of a structure of a second device according to an embodiment of the present disclosure.

[0040] FIG. 9a is a schematic diagram of a structure of a communication device according to an embodiment of the present disclosure.

[0041] FIG. 9b is a schematic diagram of a chip structure according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0042] The embodiments of the present disclosure provide a communication method, a communication device, a communication system, a storage medium and a program product.

[0043] In a first aspect, the embodiments of the present disclosure provide a communication method, comprising: determining, by a terminal, power information, wherein the power information is used by a first device to determine a transmission power of a continuous wave (CW) transmitted to a second device.

[0044] In the above embodiment, the terminal determines the power information, and the power information is used by the first device to determine the power of the CW transmitted to the second device, so that the terminal controls the first device, thereby reducing the time delay, enabling the first device to quickly adjust the power of the CW, and improving the communication efficiency.

[0045] In some optional embodiments of the first aspect, the power information comprises a power adjustment value.

[0046] In the above embodiment, the power information can be a power adjustment value, and the terminal determines the power adjustment value, so that the power adjustment value can be directly transmitted to the first device, so that the first device can timely determine the transmission power and quickly adjust the transmission power.

[0047] In some optional embodiments of the first aspect, the power information is determined in the following manner: the terminal receives a first signal transmitted by the second device, and measures a received signal strength indication (RSSI) value; and the terminal determines a difference between the RSSI value and a first RSSI threshold value as the power adjustment value.

[0048] In the above embodiment, the terminal can determine the power adjustment value by measuring the first signal and based on the difference between the measured value and the threshold value, so as to obtain a more accurate power adjustment value.

[0049] In some optional embodiments of the first aspect, the first RSSI threshold value is transmitted by a network device, or is specified by a protocol, or is predefined between the network device and the terminal.

[0050] In the above embodiment, the threshold value is transmitted by a network device, or is specified by a protocol, or is predefined between the network device and the terminal, so as to adapt to different communication situations and improve flexibility.

[0051] In some optional embodiments of the first aspect, the power information is determined in the following manner: a predefined first value or a first value transmitted by a network device is determined as the power adjustment value.

[0052] In the above embodiment, the predefined first value or the first value transmitted by the network device can be determined as the power adjustment value, thereby improving the efficiency.

[0053] In some optional embodiments of the first aspect, the determining the predefined first value or the first value sent by the network device as the power adjustment value comprises: determining the predefined first value or the first value sent by the network device as the power adjustment value in a second time length, wherein the terminal does not receive the first signal sent by the second device in the second time length.

[0054] In the above embodiments, the predefined first value or the first value sent by the network device can be determined as the power adjustment value in the second time length, wherein the first signal is not received in the second time length. That is, in the time period in which the first signal can not be received, the terminal determines the predefined first value or the first value sent by the network device as the power adjustment value, thereby improving the efficiency and avoiding unnecessary power waste.

[0055] In some optional embodiments of the first aspect, the second time length comprises at least one of the following: a time length defined by a protocol; a time length sent by the network device; a time length predefined between the network device and the terminal; a time length determined by the terminal based on a transmission occasion of the first signal.

[0056] In the above embodiments, the second time length can be defined by a protocol, configured by a network, predefined, or determined by the terminal based on a transmission occasion, thereby being able to adapt to different situations and improve the communication efficiency.

[0057] In some optional embodiments of the first aspect, the second time length ranges from T1 to T2, T1 is the shortest time length required for the terminal to send the second signal to receive the first signal, and T2 is the longest time length required for the terminal to send the second signal to receive the first signal; wherein the first signal is a signal sent by the second device to the terminal, and the second signal is a signal sent by the terminal to the second device.

[0058] In the above embodiments, the second time length ranges from T1 to T2, and the second time length between T1 and T2 is the time period in which the first signal can not be received, thereby improving the efficiency.

[0059] In some optional embodiments of the first aspect, the starting position of the second time length is a time point that is spaced from a transmission occasion of the first signal by N time units, and the ending position of the second time length is a time point that is spaced from the transmission occasion by M time units; wherein M and N are positive integers, and M is less than N.

[0060] In the above embodiment, the start position and the end position of the second time length are as described above, and before the transmission time of the first signal, the terminal often cannot receive the first signal, so the start position and the end position of the second time length can be determined before the transmission time of the first signal, so as to improve the accuracy.

[0061] In some optional embodiments of the first aspect, the power information is determined in the following manner: the terminal receives a plurality of first signals in the first time length and measures a plurality of RSSI values; the terminal determines the difference between the maximum value of the plurality of RSSI values and the second RSSI threshold as the power adjustment value; or, the terminal determines the difference between the minimum value of the plurality of RSSI values and the second RSSI threshold as the power adjustment value; or, the terminal determines the difference between the average value of the plurality of RSSI values and the second RSSI threshold as the power adjustment value; or, the terminal subtracts the second RSSI threshold from the plurality of RSSI values respectively to obtain a plurality of difference values, and determines the sum of the plurality of difference values as the power adjustment value.

[0062] In the above embodiment, a plurality of first signals can be measured in the first time length to obtain a plurality of RSSI values, and then the power adjustment value is determined in combination with the RSSI threshold. Thus, the power adjustment value is referenced to the comprehensive situation in a period of time, so as to improve the reliability of the power adjustment value.

[0063] In some optional embodiments of the first aspect, the second RSSI threshold is sent by the network device, or is specified by a protocol, or is predefined between the network device and the terminal.

[0064] In the above embodiment, the threshold value can be sent by the network device, can be specified by a protocol, or can be predefined, so as to improve flexibility.

[0065] In some optional embodiments of the first aspect, the method further comprises: the terminal sends the power adjustment value to the first device; or, the terminal sends the power adjustment value to the network device.

[0066] In the above embodiment, the terminal sends the power adjustment value to the first device, or sends the power adjustment value to the network device, and then the network device sends the power adjustment value to the first device, so that the first device can receive the power adjustment value, thereby improving efficiency.

[0067] In some optional embodiments of the first aspect, the power information comprises an RSSI value of a first signal, the first signal is a signal sent by the second device to the terminal, and the power information is determined in the following manner: the terminal receives the first signal sent by the second device and measures the RSSI value.

[0068] In the above embodiment, the power information includes an RSSI value, the terminal can measure the RSSI value and send the RSSI value to the network device, so as to determine the power adjustment value by the network device and send the first device to save the power consumption of the terminal side.

[0069] In some optional embodiments of the first aspect, the method further includes: the terminal sending the RSSI value to the network device.

[0070] In the above embodiment, the terminal can send the RSSI value to the network device, so as to determine the power adjustment value by the network device and send the first device to save the power consumption of the terminal side.

[0071] In the second aspect, a communication method is provided, the method includes: a network device sending at least one of a first RSSI threshold value and a first value, and a second RSSI threshold value to a terminal; the at least one of the first RSSI threshold value and the first value, and the second RSSI threshold value is used to determine power information; and the power adjustment value is used by a first device to determine the transmission power of a continuous electromagnetic wave (CW) sent to a second device.

[0072] In some optional embodiments of the second aspect, the power information includes a power adjustment value.

[0073] In some optional embodiments of the second aspect, the power adjustment value is determined based on the first RSSI threshold value and the RSSI value of a first signal sent by the second device to the terminal.

[0074] In some optional embodiments of the second aspect, the power adjustment value is determined based on the first value.

[0075] In some optional embodiments of the second aspect, the method further includes: the network device sending a second time length to the terminal, the second time length being a time length for determining the power adjustment value based on the first value, and the terminal not receiving a signal sent by the second device within the second time length.

[0076] In some optional embodiments of the second aspect, the second time length is in a range of T1 to T2, the T1 is a shortest time length required for the terminal to send a second signal to receive a first signal, and the T2 is a longest time length required for the terminal to send the second signal to receive the first signal; wherein the first signal is a signal sent by the second device to the terminal, and the second signal is a signal sent by the terminal to the second device.

[0077] In some possible embodiments of the second aspect, a starting position of the second time length is a time point that is spaced apart from a transmission occasion of the first signal by N time units, and an ending position of the second time length is a time point that is spaced apart from the transmission occasion by M time units, where M and N are positive integers, and M is less than N.

[0078] In some possible embodiments of the second aspect, the power adjustment value is determined based on the second RSSI threshold and RSSI values of a plurality of first signals in a first time length, the first signals being signals transmitted by the second device to the terminal.

[0079] In some possible embodiments of the second aspect, the method further includes: receiving, by the network device, the power adjustment value transmitted by the terminal; and transmitting, by the network device, the power adjustment value to the first device.

[0080] In some possible embodiments of the second aspect, the power information includes an RSSI value.

[0081] In some possible embodiments of the second aspect, the method further includes: receiving, by the network device, the RSSI value transmitted by the terminal; determining, by the network device, a power adjustment value based on the RSSI value and a first RSSI threshold, or determining, by the network device, a power adjustment value based on the RSSI value and a second RSSI threshold; and transmitting, by the network device, the power adjustment value to the first device.

[0082] In a third aspect, a communication method is provided, including: receiving, by a first device, a power adjustment value transmitted by a terminal, or receiving, by the first device, a power adjustment value transmitted by a network device, the power adjustment value being used by the first device to determine a transmission power of a continuous wave (CW) transmitted by the first device to a second device.

[0083] In a fourth aspect, a communication method is provided, including: transmitting, by a second device, a first signal to a terminal, the first signal being used to measure an RSSI value, the RSSI value being used to determine power information, the power information being used by a first device to determine a transmission power of a continuous wave (CW) transmitted by the first device to the second device.

[0084] In a fifth aspect, a communication method is provided, including: determining, by a terminal, power information, the power information being used by a first device to determine a transmission power of a continuous wave (CW) transmitted by the first device to a second device, the power information including a power adjustment value or an RSSI value; transmitting, by the terminal, the power adjustment value to the first device, or transmitting, by the terminal, the RSSI value to a network device, the network device determining a power adjustment value based on the RSSI value and transmitting the power adjustment value to the first device; and receiving, by the first device, the power adjustment value.

[0085] In a sixth aspect, a terminal is provided, comprising: a processing module configured to determine, by the terminal, power information, the power information being used by a first device to determine a transmission power of a continuous wave (CW) transmitted to a second device.

[0086] In some embodiments of the sixth aspect, the power information comprises a power adjustment value.

[0087] In some embodiments of the sixth aspect, the processing module is configured to determine the power information by: receiving a first signal transmitted by the second device, and measuring a received signal strength indication (RSSI) value; and determining a difference between the RSSI value and a first RSSI threshold as the power adjustment value.

[0088] In some embodiments of the sixth aspect, the first RSSI threshold is transmitted by a network device, or is specified by a protocol, or is predefined between the network device and the terminal.

[0089] In some embodiments of the sixth aspect, the processing module is configured to determine the power information by: determining a predefined first value or a first value transmitted by a network device as the power adjustment value.

[0090] In some embodiments of the sixth aspect, the processing module is configured to determine the predefined first value or the first value transmitted by the network device as the power adjustment value by: determining the predefined first value or the first value transmitted by the network device as the power adjustment value within a second time duration, wherein the terminal does not receive the first signal transmitted by the second device within the second time duration.

[0091] In some embodiments of the sixth aspect, the second time duration comprises at least one of: a time duration specified by a protocol; a time duration transmitted by a network device; a time duration predefined between the network device and the terminal; a time duration determined by the terminal based on a transmission occasion of the first signal.

[0092] In some embodiments of the sixth aspect, the second time duration is within a range of T1 to T2, the T1 is a shortest time duration required by the terminal to transmit a second signal to receive the first signal, and the T2 is a longest time duration required by the terminal to transmit the second signal to receive the first signal, wherein the first signal is a signal transmitted by the second device to the terminal, and the second signal is a signal transmitted by the terminal to the second device.

[0093] In some optional embodiments of the sixth aspect, a starting position of the second time length is a time point that is spaced by N time units from a transmission occasion of the first signal, and an ending position of the second time length is a time point that is spaced by M time units from the transmission occasion; wherein the M and N are positive integers, and the M is smaller than the N.

[0094] In some optional embodiments of the sixth aspect, the processing module determines the power information in the following manner: the terminal receives a plurality of first signals in a first time length, and measures a plurality of RSSI values; the terminal determines a difference between a maximum value of the plurality of RSSI values and a second RSSI threshold as the power adjustment value; or, the terminal determines a difference between a minimum value of the plurality of RSSI values and the second RSSI threshold as the power adjustment value; or, the terminal determines a difference between an average value of the plurality of RSSI values and the second RSSI threshold as the power adjustment value; or, the terminal subtracts the second RSSI threshold from each of the plurality of RSSI values to obtain a plurality of difference values, and determines a sum of the plurality of difference values as the power adjustment value.

[0095] In some optional embodiments of the sixth aspect, the second RSSI threshold is sent by a network device, or is defined by a protocol, or is predefined between the network device and the terminal.

[0096] In some optional embodiments of the sixth aspect, the terminal further comprises a transceiver module, configured to send the power adjustment value to the first device; or, the terminal sends the power adjustment value to a network device.

[0097] In some optional embodiments of the sixth aspect, the power information comprises an RSSI value of a first signal, the first signal being a signal sent by the second device to the terminal, and the processing module determines the power information in the following manner: the terminal receives the first signal sent by the second device, and measures the RSSI value.

[0098] In some optional embodiments of the sixth aspect, the terminal further comprises a transceiver module, configured to send the RSSI value to a network device.

[0099] In a seventh aspect, a network device is provided, comprising: a transceiver module, configured to send a first RSSI threshold or a first value or a second RSSI threshold to a terminal; the first RSSI threshold or the first value or the second RSSI threshold is used to determine power information; the power adjustment value is used by a first device to determine a transmission power of a continuous electromagnetic wave (CW) sent to a second device.

[0100] In some optional embodiments of the seventh aspect, the power information comprises a power adjustment value.

[0101] In some embodiments of the seventh aspect, the power adjustment value is determined based on the first RSSI threshold and an RSSI value of a first signal, the first signal being a signal sent by the second device to the terminal.

[0102] In some embodiments of the seventh aspect, the power adjustment value is determined based on the first value.

[0103] In some embodiments of the seventh aspect, the transceiver is further configured to: send, to the terminal, a second time duration, the second time duration being a time duration during which the power adjustment value is determined based on the first value, and during which the terminal does not receive a signal sent by the second device.

[0104] In some embodiments of the seventh aspect, the second time duration has a range of T1 to T2, the T1 being a shortest time duration required for the terminal to send a second signal to receive a first signal, and the T2 being a longest time duration required for the terminal to send the second signal to receive the first signal; wherein the first signal is a signal sent by the second device to the terminal, and the second signal is a signal sent by the terminal to the second device.

[0105] In some embodiments of the seventh aspect, a starting position of the second time duration is a time point that is N time units away from a transmission occasion of the first signal, and an ending position of the second time duration is a time point that is M time units away from the transmission occasion; wherein the M and N are positive integers, and the M is smaller than the N.

[0106] In some embodiments of the seventh aspect, the power adjustment value is determined based on the second RSSI threshold and RSSI values of a plurality of first signals in a first time duration, the first signal being a signal sent by the second device to the terminal.

[0107] In some embodiments of the seventh aspect, the transceiver is further configured to: receive the power adjustment value sent by the terminal; and send, to the first device, the power adjustment value by the network device.

[0108] In some embodiments of the seventh aspect, the power information comprises an RSSI value.

[0109] In some embodiments of the seventh aspect, the transceiver is further configured to: receive the RSSI value sent by the terminal; and determine, by the network device, a power adjustment value based on the RSSI value and a first RSSI threshold, or determine, by the network device, a power adjustment value based on the RSSI value and a second RSSI threshold; and send, to the first device, the power adjustment value by the network device.

[0110] In an eighth aspect, a first device is provided, comprising: a transceiver configured to receive a power adjustment value sent by a terminal, or configured to receive a power adjustment value sent by a network device; the power adjustment value is used by the first device to determine a transmission power for transmitting a continuous wave (CW) to a second device.

[0111] In a ninth aspect, a second device is provided, comprising: a transceiver configured to send a first signal to a terminal, the first signal is used to measure a received signal strength indicator (RSSI) value, the RSSI value is used to determine a power information, the power information is used by the first device to determine a transmission power for transmitting a continuous wave (CW) to a second device.

[0112] In a tenth aspect, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to perform the first aspect and any one of the communication methods in the first aspect.

[0113] In an eleventh aspect, a network device is provided, comprising: one or more processors; wherein the network device is configured to perform the second aspect and any one of the communication methods in the second aspect.

[0114] In a twelfth aspect, a first device is provided, comprising: one or more processors; wherein the network device is configured to perform the third aspect and any one of the communication methods in the third aspect.

[0115] In a thirteenth aspect, a second device is provided, comprising: one or more processors; wherein the network device is configured to perform the fourth aspect and any one of the communication methods in the fourth aspect.

[0116] In a fourteenth aspect, a communication system is provided, comprising a terminal, a network device, a first device and a second device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, the network device is configured to implement the second aspect and any one of the communication methods in the second aspect. The first device is configured to implement the third aspect and any one of the communication methods in the third aspect, and the second device is configured to implement the fourth aspect and any one of the communication methods in the fourth aspect.

[0117] In a fifteenth aspect, a storage medium is provided, the storage medium stores instructions, when the instructions are executed on a communication device, the communication device performs the first aspect and any one of the communication methods in the first aspect, or the second aspect and any one of the communication methods in the second aspect, or the third aspect and any one of the communication methods in the third aspect, or the fourth aspect and any one of the communication methods in the fourth aspect.

[0118] In a sixteenth aspect, a program product is provided, comprising: a computer program which, when executed by a communication device, causes the communication device to perform the communication method according to the first aspect and any one of the first aspect, or the communication method according to the second aspect and any one of the second aspect, or the communication method according to the third aspect and any one of the third aspect, or the communication method according to the fourth aspect and any one of the fourth aspect.

[0119] In a seventeenth aspect, a computer program is provided, which, when executed on a computer, causes the computer to perform the communication method according to the first aspect and any one of the first aspect, or the communication method according to the second aspect and any one of the second aspect, or the communication method according to the third aspect and any one of the third aspect, or the communication method according to the fourth aspect and any one of the fourth aspect.

[0120] In an eighteenth aspect, a chip or chip system is provided. The chip or chip system comprises processing circuitry configured to perform the communication method according to the first aspect and any one of the first aspect, or the communication method according to the second aspect and any one of the second aspect, or the communication method according to the third aspect and any one of the third aspect, or the communication method according to the fourth aspect and any one of the fourth aspect.

[0121] It can be understood that the terminal, the access network device, the first network element, the other network element, the core network device, the communication system, the storage medium, the program product, the computer program, the chip or the chip system involved in the embodiments of the present disclosure are used to execute the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be described here.

[0122] The embodiments of the present disclosure propose a communication method, a communication device, a communication system, a storage medium and a program product. In some embodiments, the communication method and the information processing method, and the communication method and the like can be replaced with each other, the communication device and the information processing device, and the communication device and the like can be replaced with each other, and the information processing system and the communication system and the like can be replaced with each other.

[0123] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or all steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation manners of other embodiments.

[0124] In the embodiments of the present disclosure, the terms and / or descriptions among the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical environments in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0125] The terms used in the embodiments of the present disclosure are only for the purpose of describing particular embodiments and are not used as limitations of the present disclosure.

[0126] In the embodiments of the present disclosure, unless otherwise specified and logically conflicted, the elements expressed in singular form, such as "one", "one kind", "the", "the above", "the", "the above", "this" and the like, can represent "one and only one", and can also represent "one or more", "at least one" and the like. For example, in the case of using articles such as "a", "an", "the" and the like in English, the noun after the article can be understood as singular expression, and can also be understood as plural expression.

[0127] In the embodiments of the present disclosure, "plurality" refers to two or more.

[0128] In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple" and the like can be replaced with each other.

[0129] In some embodiments, the writing manner of "at least one of A, B", "A and / or B", "A in one case and B in another case", "A in response to one case and B in response to another case" and the like can include the following technical solutions according to the case: A in some embodiments (A is executed regardless of B); B in some embodiments (B is executed regardless of A); A and B are selectively executed in some embodiments (A and B are selected from A and B); A and B are executed in some embodiments (A and B are executed). When there are more branches of A, B, C and the like, it is similar to the above.

[0130] In some embodiments, the writing manner of "A or B" and the like can include the following technical solutions according to the case: A in some embodiments (A is executed regardless of B); B in some embodiments (B is executed regardless of A); A and B are selectively executed in some embodiments (A and B are selected from A and B). When there are more branches of A, B, C and the like, it is similar to the above.

[0131] The prefix words of "first", "second" and the like in the embodiments of the present disclosure are merely used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description objects are described in the claims or embodiments, and should not be construed as redundant limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different. For another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and the contents thereof can be the same or different.

[0132] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0133] In some embodiments, the terms of "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0134] In some embodiments, the terms of "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", "above" and the like can be replaced with each other, and the terms of "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", "below" and the like can be replaced with each other.

[0135] In some embodiments, the apparatuses and devices can be interpreted as entities, and can also be interpreted as virtual, whose names are not limited to the names described in the embodiments, and in some cases can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0136] In some embodiments, "network" can be interpreted as an apparatus contained in the network, for example, access network device, core network device, etc.

[0137] In some embodiments, "access network device (AN device)" can also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments can also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0138] In some embodiments, a "terminal" or "terminal device" can be referred to as a "user equipment" (UE), a "user terminal," a "mobile station" (MS), a "mobile terminal" (MT), a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, etc.

[0139] In some embodiments, data, information, etc. can be obtained in compliance with laws and regulations of the country in which the location is situated.

[0140] In some embodiments, data, information, etc. can be obtained after obtaining consent from a user.

[0141] In addition, each element, each row, or each column in the table of the embodiments of the present 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.

[0142] Ambient Internet Of Things (A-IoT) is a brand-new Internet of Things technology. Compared with traditional Internet of Things technology, a significant feature is that the number of A-IoT terminals that can access the network is large in scale, and the structure is simple, the hardware cost and maintenance cost are low, and the power consumption is low, which can be used for a long time without replacing the battery. Among them, the A-IoT terminal can also be referred to as A-IoT user equipment (A-IoT UE), A-IoT device (A-IoT device), A-IoT tag (A-IoT Tag), etc.

[0143] A-IoT device can be applied to the scenario of inventory of large-scale goods, i.e. A-IoT device reports Evolved Packet Core (EPC) code to network device or intermediate node or UE, can be applied to the scenario of sensing such as smart home, environment monitoring, i.e. meets certain trigger condition, reports some data, can be applied to the scenario of positioning, to find goods or positioning in shopping mall. Can also be used in command scenario, for the command sent by network device, to make certain response.

[0144] A-IoT device can be divided into three types:

[0145] device 1: peak power consumption is 1 μw, has energy storage, cannot independently generate / amplify signal, for example, uses backscattering working mode. Does not have the ability of DL and / or UL signal amplification.

[0146] device 2a: peak power consumption is several hundred μw, has energy storage ability, cannot independently generate signal, for example, uses backscattering working mode. Can use stored energy for DL and / or UL signal amplification.

[0147] device 2b: peak power consumption is several hundred μw, has energy storage ability, can independently generate signal, for example, has RF module for active signal transmission.

[0148] device 2c: has the ability of active information transmission and backscattering.

[0149] Among them, device 1, 2a can only use the backscattering working mode and cannot actively send signals. When it needs to send information, it needs to have an external electromagnetic wave (continuous wave, CW) for backscattering, that is, it works based on backscattering. For A-IOT devices using backscattering mode, A-IOT devices need an energy source (node) that provides continuous electromagnetic waves (continuous wave, CW) while transmitting data, that is, a continuous electromagnetic wave energy source (CW node). Provide electromagnetic waves for reflection. CW is generally constant in amplitude. The CW node can be a separate node or just a network / intermediate node communicating with the A-IOT device. The intermediate node is, for example, a UE. The A-IoT device reflects the received CW and loads the signaling / data to be transmitted onto the reflected wave to send it out. The reflected wave and the CW are the same frequency or have a certain frequency offset. For example, the A-IoT device receives the CW, activates the internal receiving processing module to start working, and encodes and modulates the signaling / data that the A-IoT device needs to upload. At the same time, the CW also plays the role of charging the A-IoT device.

[0150] In the communication system where the A-IoT device is located, there can be nodes such as network devices, terminals, intermediate nodes, and auxiliary nodes. Among them, the intermediate node is the node between the A-IoT device and the network device, which can be a relay, an integrated access and backhaul node (IAB node), a UE, a signal repeater (Repeater)

[0151] Currently, A-IoT devices support the following two deployment structures:

[0152] (1): A-IoT devices and networks directly receive and transmit DL and UL data, as shown in FIG. 1a, which is a deployment structure diagram of an A-IoT device.

[0153] (2): A-IoT devices and networks indirectly receive and transmit DL and UL data through intermediate nodes, as shown in FIG. 1b, which is a deployment structure diagram of an A-IoT device.

[0154] Currently, in the system of the environmental Internet of Things, there are three types of terminal data transmission:

[0155] (1): Report data based on the needs of network devices, such as inventory.

[0156] (2): Based on A-IoT device trigger, for example, the temperature of a sensor is higher than a configured threshold.

[0157] (3): Periodic data reporting. For example, a periodic request from the network to enable periodic environmental IoT data reporting, or based on A-IOT device self-trigger to enable periodic environmental IoT data reporting. But due to the discontinuous power supply, it may be difficult to implement even if difficult.

[0158] Currently, how to control the transmission power of the CW is being studied.

[0159] In some embodiments, the transmission power of the CW is controlled by the base station or the UE (UE as an intermediate node), and the base station and the UE can be equivalent to the network device of the node. The CW can be transmitted at a constant power value, or under the control of the base station or the UE, the transmission power of the CW is controlled in a dynamic manner. For example, similar to the closed-loop plus open-loop power control method in NR. In the current NR, the power control of the uplink signal is a closed-loop plus open-loop mechanism, as shown in the following formula 1. Formula 1 is an exemplary calculation formula of the transmission power.

[0160] In formula 1, P PUSCH,b,f,c (i,j,q d ,l) is the transmission power, and min represents the minimum value symbol, that is, P PUSCH,b,f,c (i,j,q d ,l) is equal to the minimum value of P CMAX,f,c (i) and . Wherein, P O_PUSCH,b,f,c (j) represents the target received power of the physical uplink shared channel (PUSCH) configured by the base station. log represents the logarithmic symbol, and log 10 (X) represents the logarithm of X with 10 as the base of X. represents the power value of PUSCH on the bandwidth of the transmission bandwidth. a b,f,c (j) represents the path loss compensation parameter. PL b,f,c (q d ) represents the path loss between the base station and the UE calculated by the UE based on the reference signal. Delta TFb,f,c (i) represents the power increment based on the modulation method and channel coding rate. f b,f,c (i,l) represents the power increment based on the modulation method and channel coding rate.

[0161] In some embodiments, based on the mechanism of NR, the specific CW power control can be as follows formula 2.

[0162] CW transmit power = UR target received power + k * round trip power loss - device power amplifier value + waveform variation + TPC value

[0163] Equation 2

[0164] Wherein, UR represents a terminal (UE) as a reader. The UR target received power, i.e., the reader side target received power, is determined according to parameters of a network device. k represents a road loss compensation parameter, and takes a value of [0, 1]. The round trip power loss is determined by the network device according to measurement conditions, and is a large-scale fading considering a signal transmission process. The round trip power loss = CW transmit power - reader received device to reader (D2R) signal power transmitted by an A-IOT device to the reader. The TPC value is a Transmission Power Control (TPC) value.

[0165] In some embodiments, when the network device of the CW node is a UE, i.e., in the mode of UE controlling the CW node, a connection is established between the UE and the CW node. For example, the CW node can be a special node authenticated by high-layer authentication, a CW node configured by a high layer, and indicated to surrounding UEs. Therefore, based on high-layer configuration or indication, there is always one UE that can establish a connection with one CW node within its communication range. The UE can also be referred to as a UE reader, i.e., a UE as a reader. The base station controls the transmit power of the CW, and the power adjustment value is determined according to the influence of small-scale fading of signal transmission determined by the base station according to measurement. The specific adjustment value is determined according to the implementation of the base station.

[0166] However, if the mode of UE controlling the CW node, how to determine the power adjustment value is a problem to be solved. Or, if there is no connection between the CW node and the UE, the base station controls the CW node, and the UE determines the power information (the power information is, for example, the target received power), how the UE determines the power adjustment value is a problem to be solved.

[0167] The present disclosure determines the power information by the terminal, and the power information is used by the first device to determine the power of transmitting the CW to the second device, so as to realize the control of the first device by the terminal, thereby reducing the time delay, making the first device more quickly adjust the power of transmitting the CW, and improving the communication efficiency.

[0168] FIG. 1c is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0169] As shown in FIG. 1c, the communication system 100 includes a terminal 101, a network device 102, a first device 103, and a second device 104.

[0170] In some embodiments, the terminal 101 can also be a reader. The terminal 101 includes at least one of a mobile phone, a wearable device, an Internet of Things (IoT) device, a communication-capable automobile, a smart automobile, a Pad, a wireless transceiver-equipped computer, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, and the like, but is not limited thereto.

[0171] In some embodiments, the network device 102 can include at least one of an access network device and a core network device.

[0172] In some embodiments, the access network device is, for example, a node or a device that accesses a terminal to a wireless network, and can include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, an access node in a Wi-Fi system, and the like, but is not limited thereto.

[0173] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, at this time, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0174] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), where the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the access network device, and some of the protocol layers are controlled by the CU, and the remaining or all of the protocol layers are distributed in the DU and controlled by the CU. However, the present disclosure is not limited thereto.

[0175] In some embodiments, the core network device can be one device including one or more network elements, or can be multiple devices or device groups including all or part of the one or more network elements. The network element can be virtual or physical. The core network includes at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next-generation core (NGC).

[0176] In some embodiments, the first device 103 can be a CW node, but is not limited thereto.

[0177] In some embodiments, the second device 104 can be an A-IoT device, but is not limited thereto.

[0178] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the present disclosure, and does not constitute a limitation on the technical solutions proposed by the present disclosure. Those skilled in the art can know that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions proposed by the present disclosure are also applicable to similar technical problems.

[0179] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1c, or part of the subjects, but are not limited thereto. The subjects shown in FIG. 1c are illustrative, and the communication system can include all or part of the subjects in FIG. 1c, or other subjects other than those in FIG. 1c. The number and form of each subject is arbitrary, each subject can be real or virtual, the connection relationship between each subject is illustrative, each subject can not be connected or can be connected, and the connection can be in any manner, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0180] Embodiments of the present disclosure 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), 6th generation mobile communication system (6G), 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 (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, device-to-device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication methods, next-generation system expanded based thereon, and the like. In addition, a plurality of systems can be combined (for example, combination of LTE or LTE-A and 5G, and the like).

[0181] FIG. 2a is a schematic diagram of an interaction of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2a, the embodiment of the present disclosure relates to a communication method for a communication system 100, the method comprising:

[0182] In step S2101, network device 102 sends at least one of a first RSSI threshold, a first value, and a second RSSI threshold to terminal 101.

[0183] In some embodiments, terminal 101 receives at least one of a first Received Signal Strength Indication (RSSI) threshold, a first value, and a second RSSI threshold sent by network device 102.

[0184] In some embodiments, at least one of the first RSSI threshold, the first value, and the second RSSI threshold may be pre-configured by the network device. For example, the network device sending at least one of the first RSSI threshold, the first value, and the second RSSI threshold to the terminal may be a pre-configuration of at least one of the first RSSI threshold, the first value, and the second RSSI threshold by the network device to the terminal. However, this is not a limitation. For example, the network device may also send at least one of the first RSSI threshold, the first value, and the second RSSI threshold in real time according to the actual situation, i.e., a non-pre-configured method, which is not limited in this disclosure.

[0185] In some embodiments, the name of the first value is not limited, and it may be, for example, a preset value.

[0186] In some embodiments, in a mode where the first device is controlled by a terminal, the network device sends at least one of a first RSSI threshold, a first value, and a second RSSI threshold to the terminal, so that the terminal can determine a power adjustment value to control the transmission power of the first device. However, this is not a limitation. For example, in a mode where the first device is controlled by a network device, the network device may also send at least one of a first RSSI threshold, a first value, and a second RSSI threshold to the terminal, allowing the terminal to determine the power adjustment value and send it to the network device, which then controls the transmission power of the first device.

[0187] In some embodiments, the first RSSI threshold sent by the network device is used to calculate the power adjustment value. For example, the terminal receives a first signal and measures the RSSI value, and determines the power adjustment value based on the RSSI value and the first RSSI threshold. The RSSI value can also be called the RSSI measurement value. The first signal is a signal sent to the terminal by a second device. The second device is a device that receives CW (Content-to-Wave) signals, and the power adjustment value is used to determine the transmission power of the CW. The second device can be an A-IoT device, and the first signal can be a D2R (Digital-to-Remote) signal, but this disclosure does not limit this.

[0188] In some embodiments, the first value sent by the network device is used to determine the power adjustment value. For example, the terminal may determine the first value as the power adjustment value.

[0189] In some embodiments, the second RSSI threshold value sent by the network device is used to calculate the power adjustment value. For example, the terminal receives a plurality of first signals in a first time duration, and measures a plurality of RSSI values. Based on the plurality of RSSI values and the second RSSI threshold value, the power adjustment value is determined.

[0190] In some embodiments, the power adjustment value can also be a TPC value.

[0191] In some embodiments, the first RSSI threshold value and the second RSSI threshold value can be the same or different.

[0192] It can be understood that step S2101 is optional. On one hand, at least one of the first RSSI threshold value, the first value and the second RSSI threshold value can be determined in other manners, and then step S2101 can be omitted. For example, at least one of the first RSSI threshold value, the first value and the second RSSI threshold value can be determined based on a protocol, i.e., the protocol can specify at least one of the first RSSI threshold value, the first value and the second RSSI threshold value. For another example, at least one of the first RSSI threshold value, the first value and the second RSSI threshold value can be determined based on a predefinition between the terminal and the network device, i.e., the terminal and the network device can predefine at least one of the first RSSI threshold value, the first value and the second RSSI threshold value. On the other hand, the terminal can repeatedly determine the power adjustment value, but the network device can not repeatedly send at least one of the first RSSI threshold value, the first value and the second RSSI threshold value. That is, at least one of the first RSSI threshold value, the first value and the second RSSI threshold value can be preconfigured in the process of determining the power adjustment value by the terminal, and step S2101 can be omitted.

[0193] In step S2102, the second device 104 sends the first signal to the terminal 101.

[0194] In some embodiments, the terminal 101 receives the first signal sent by the second device 104.

[0195] In some embodiments, the terminal receives the first signal, and can measure the first signal to obtain an RSSI value.

[0196] In some embodiments, the terminal can perform single measurement to obtain one RSSI value. The terminal can also perform multiple measurements to obtain a plurality of RSSI values. For example, the terminal can receive a plurality of first signals in a first time duration, and measure the plurality of second signals to obtain a plurality of RSSI values.

[0197] In some embodiments, the first signal can be a D2R signal, but is not limited thereto.

[0198] It can be understood that step S2102 is optional. In the present disclosure, the terminal can determine the power adjustment value through the RSSI value, but can also determine the power adjustment value through other manners, and if the power adjustment value is determined through other manners, step S2102 can be omitted.

[0199] In step S2103, the terminal 101 determines the power information.

[0200] In some embodiments, the power information includes the power adjustment value. The terminal can receive the first signal and measure the first signal to obtain the RSSI value. The RSSI value can be one or more. The terminal can determine the power adjustment value based on one RSSI value and the first RSSI threshold, or determine the power adjustment value based on multiple RSSI values and the second RSSI threshold. The terminal can send the power adjustment value to the first device, so that the first device determines the power of the CW based on the power adjustment value.

[0201] In some embodiments, the power adjustment value can be determined based on one RSSI value and the first RSSI threshold. For example, the difference between the RSSI value and the first RSSI threshold can be determined as the power adjustment value.

[0202] In some embodiments, the power adjustment value can be determined based on multiple RSSI values and the second RSSI threshold.

[0203] Optionally, the terminal can select the maximum value from the multiple RSSI values, and determine the difference between the maximum value and the second RSSI threshold as the power adjustment value.

[0204] Optionally, the terminal can select the minimum value from the multiple RSSI values, and determine the difference between the minimum value and the second RSSI threshold as the power adjustment value.

[0205] Optionally, the terminal can calculate the average value of the multiple RSSI values, and determine the difference between the average value and the second RSSI threshold as the power adjustment value.

[0206] Optionally, the terminal can subtract each of the multiple RSSI values from the second RSSI threshold to obtain multiple differences, and determine the sum of the multiple differences as the power adjustment value. The second RSSI threshold can be one or multiple. That is, the multiple RSSI values can be subtracted from the same second RSSI threshold to obtain the difference. Or, the multiple RSSI values can be subtracted from different second RSSI thresholds to obtain the difference.

[0207] In some embodiments, a predefined first value or a first value sent by the network device can be determined as the power adjustment value.

[0208] In some embodiments, the first value predefined or sent by the network device can be determined as the power adjustment value in a second time duration, in which the terminal does not receive the first signal sent by the second device. For example, to determine the power adjustment value, if the first signal is received in a certain time period, the power adjustment value can be determined by measuring the first signal. If the first signal is not received in the certain time period, the first value predefined or sent by the network device can be determined as the power adjustment value. In the embodiment, the second time duration is the time period in which the first signal can not be received.

[0209] In some embodiments, the second time duration comprises at least one of the following: a time duration predefined by a protocol; a time duration sent by the network device; a time duration predefined between the network device and the terminal; a time duration determined by the terminal based on a transmission occasion of the first signal.

[0210] Optionally, the second time duration comprises a time duration predefined by a protocol. For example, the second time duration can be predefined in the protocol, and the terminal can determine the first value predefined or sent by the network device as the power adjustment value in the second time duration.

[0211] Optionally, the second time duration comprises a time duration sent by the network device. For example, the second time duration can be determined by the network device and sent to the terminal. The terminal can determine the first value predefined or sent by the network device as the power adjustment value in the second time duration. For example, the network device can send the second time duration to the terminal in a preconfigured manner, i.e., the second time duration can be preconfigured by the network device. However, the disclosure is not limited thereto, for example, the second time duration can also be sent to the terminal in real time by the network device, i.e., in a non-preconfigured manner.

[0212] Optionally, the second time duration comprises a time duration predefined between the network device and the terminal. For example, the second time duration can be predefined between the terminal and the network device, and the terminal can determine the first value predefined or sent by the network device as the power adjustment value in the second time duration.

[0213] Optionally, the second time duration comprises a time duration determined by the terminal based on a transmission occasion of the first signal. For example, in some time units before the transmission occasion of the first signal, the terminal is less likely to receive the first signal, and the terminal can determine the time units before the transmission occasion of the first signal as the second time duration.

[0214] It can be understood that the above optional embodiments can be combined. For example, the second time length can include a protocol specified time length and a time length determined by the terminal based on the transmission occasion of the first signal. That is, the terminal determines the predefined first value or the transmitted first value as the power adjustment value within the protocol specified time length. Moreover, the terminal can also determine another second time length based on the transmission occasion of the first signal, and also determine the predefined first value or the transmitted first value as the power adjustment value within the second time length. For another example, when the second time length is specified in the protocol, in a general communication scenario, the terminal determines the second time length based on the protocol specification. For some specific communication scenarios, the network device can flexibly adjust the second time length by preconfiguring the second time length. That is, assuming that the protocol specified second time length is A, and the network device transmitted second time length is B. In a general communication scenario, the terminal can determine the predefined first value or the network device transmitted first value as the power adjustment value within A. In some specific communication scenarios, the terminal can determine the predefined first value or the network device transmitted first value as the power adjustment value within B. The present disclosure does not limit the specific communication scenarios. It can be understood that the present disclosure does not exemplify the combination of the above optional examples one by one, but is not limited to the examples given, and the above optional examples can be used in any combination, and the present disclosure does not limit.

[0215] In some embodiments, the second time length is in the range of T1 to T2. For example, the process of the terminal receiving the first signal is that the terminal sends a second signal to the second device, and the second device returns the first signal to the terminal in response to the second signal. The second signal can be a reader to device (R2D) signal sent by the reader to the A-IoT device. The terminal needs at least T1 and at most T2 from sending the second signal to receiving the first signal. T1 and T2 are time periods or time lengths. That is, if the terminal sends the second signal, the first signal should be received within T, and the value of T is in the range of [T1, T2]. If the first signal cannot be received within T, the terminal can determine the predefined first value or the network device transmitted first value as the power adjustment value. The second time length is the time period in which the first signal can not be received, and the value of the second time length can be in the range of [T1, T2]. T1 is the shortest time length required for the terminal to send the second signal and receive the first signal, and T2 is the longest time length required for the terminal to send the second signal and receive the first signal. The first signal is a signal sent by the second device to the terminal, and the second signal is a signal sent by the terminal to the second device.

[0216] Optionally, the second time length can be equal to T1.

[0217] Optionally, the second time length can be equal to T2.

[0218] It can be understood that the second time length in the present disclosure is in the range of T1 to T2, but is not limited thereto. For example, the second time length can also be an integer multiple of T, and T is in the range of [T1, T2].

[0219] In some embodiments, the starting position of the second time length is a time point before the transmission occasion of the first signal and spaced apart from the transmission occasion by N time units, and the ending position of the second time length is a time point before the transmission occasion and spaced apart from the transmission occasion by M time units. M and N are positive integers, and M is less than N. For example, FIG. 2b is a schematic diagram of the transmission occasion of the first signal and the second time length according to an exemplary embodiment of the present disclosure. As shown in FIG. 2b, t1 is the starting position of the second time length, and t1 is at a position before the transmission occasion of the first signal and spaced apart from the transmission occasion of the first signal by N time units. t2 is the ending position of the second time length, and t2 is at a position before the transmission occasion of the first signal and spaced apart from the transmission occasion of the first signal by M time units. M is less than N, that is, t1 is before t2.

[0220] In some embodiments, M and N can be specified by a protocol, preconfigured by a network device, or predefined by a terminal and a network device.

[0221] In some embodiments, the time unit can be a chip, a symbol, a slot, a frame, etc., and the present disclosure does not list all examples, but is not limited thereto. The symbol can be an Orthogonal Frequency Division Multiplexing symbol (OFDM symbol), for example.

[0222] In some embodiments, the power information includes an RSSI value. The terminal can receive the first signal and measure the first signal to obtain the RSSI value. The terminal can send the RSSI value to the network device, and the network device determines the power adjustment value based on the RSSI and the first RSSI threshold value, and sends the power adjustment value to the first device so that the first device determines the power of the CW based on the power adjustment value.

[0223] In some embodiments, the first RSSI threshold value is sent by the network device, specified by a protocol, or predefined between the network device and the terminal. For example, if the terminal determines the power adjustment value based on the first RSSI threshold value and the RSSI value, the first RSSI threshold value can be sent by the network device, determined from the protocol, or predefined with the network device. If the network device determines the power adjustment value based on the first RSSI threshold value and the RSSI value, the first RSSI threshold value can be determined by the network device itself, determined from the protocol, or predefined with the terminal.

[0224] Step S2104, the terminal 101 sends the power information to the first device 103 or the network device 102.

[0225] For example, step S2104a, the terminal 101 sends the power information to the first device 103.

[0226] For example, step S2104b, the terminal 101 sends the power information to the network device 102.

[0227] In some embodiments, the power information includes a power adjustment value, and the terminal 101 can send the power adjustment value to the first device 103. For example, if there is a connection between the terminal and the first device, the terminal can send the power adjustment value directly to the first device. The first device 103 receives the power adjustment value sent by the terminal 101. The first device can determine the transmission power of the CW sent to the second device according to the power adjustment value sent by the terminal, for example, referring to formula 2, the power adjustment value can be used as the TPC value in formula 2. The first device can send the CW to the second device according to the determined transmission power, so that the second device sends a signal by reflecting the CW.

[0228] In some embodiments, the power information includes a power adjustment value. The terminal 101 can send the power adjustment value to the network device 102. For example, if there is no connection between the terminal and the first device, the terminal can send the power adjustment value to the network device, and the network device sends the power adjustment value to the first device.

[0229] In some embodiments, the power information can include an RSSI value, and the terminal 101 can send the RSSI value to the network device 102. The network device can determine a power adjustment value according to the first RSSI threshold and the RSSI value sent by the terminal, and send the power adjustment value to the first device. The first device can receive the power adjustment value sent by the network device. The first device can determine the transmission power of the CW sent to the second device according to the power adjustment value sent by the network device, for example, referring to formula 2, the power adjustment value can be used as the TPC value in formula 2. The first device can send the CW to the second device according to the determined transmission power, so that the second device sends a signal by reflecting the CW.

[0230] Step S2105, the network device 102 sends the power information to the first device 103.

[0231] In some embodiments, the first device 103 receives the power information sent by the network device 102.

[0232] In some embodiments, if there is no direct connection between the terminal and the first device, the terminal can determine a power adjustment value and send the power adjustment value to the network device, and the network device sends the power adjustment value to the first device.

[0233] In some embodiments, if the terminal sends the RSSI value to the network device, the network device can determine the power adjustment value based on the RSSI value, and send the power adjustment value to the first device.

[0234] It can be understood that step S2105 is optional, for example, if the terminal performs step S2104a, step S2105 can be omitted. For another example, if the terminal performs step S2104b, step S2105 can be performed.

[0235] The communication method related to the embodiments of the present disclosure can include at least one of steps S2101-S2105. Steps S2101-S2105 can each be implemented as a separate embodiment, and the embodiments can be combined and adjusted in order without contradiction. For example, step S2103 can be implemented as an independent embodiment, but is not limited thereto.

[0236] In some embodiments, the steps are all optional, and one or more of the steps can be omitted or replaced in different embodiments. For example, step S2101 is optional.

[0237] In some embodiments, other optional implementations can be described before or after the description of Figure 2a.

[0238] Figure 3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 3a, the embodiment of the present disclosure relates to a communication method performed by the terminal 101, and the above method includes:

[0239] Step S3101, obtaining at least one of the first RSSI threshold, the first value and the second RSSI threshold.

[0240] Optional implementations of step S3101 can refer to optional implementations of step S2101 of Figure 2a, and other related parts in the embodiments related to Figure 2a, which will not be described here.

[0241] In some embodiments, the terminal 101 obtains at least one of the first RSSI threshold, the first value and the second RSSI threshold sent by the network device 102, but is not limited thereto, and can also receive at least one of the first RSSI threshold, the first value and the second RSSI threshold sent by other subjects.

[0242] In some embodiments, the terminal 101 obtains at least one of the first RSSI threshold, the first value and the second RSSI threshold specified by the protocol.

[0243] In some embodiments, the terminal 101 obtains at least one of the first RSSI threshold, the first value and the second RSSI threshold from upper layer(s).

[0244] In some embodiments, the terminal 101 processes to obtain at least one of the first RSSI threshold, the first value and the second RSSI threshold.

[0245] In some embodiments, the step S3101 is omitted, and the terminal 101 autonomously implements the function indicated by at least one of the first RSSI threshold, the first value and the second RSSI threshold, or the above function is default or default.

[0246] In step S3102, the first signal is obtained.

[0247] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in FIG. 2a, and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0248] In some embodiments, the terminal 101 obtains the first signal sent by the second device 104, but is not limited thereto, and can also receive the first signal sent by other subjects.

[0249] In some embodiments, the terminal 101 obtains the first signal specified by the protocol.

[0250] In some embodiments, the terminal 101 obtains the first signal from upper layer(s).

[0251] In some embodiments, the terminal 101 processes to obtain the first signal.

[0252] In some embodiments, the step S3102 is omitted, and the terminal 101 autonomously implements the function indicated by the first signal, or the above function is default or default.

[0253] In step S3103, the power information is determined.

[0254] The optional implementation of step S3103 can refer to the optional implementation of step S2103 in FIG. 2a, and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0255] In some embodiments, the power information includes a power adjustment value, and the power adjustment value is determined based on the first RSSI threshold and the RSSI value of the first signal.

[0256] In some embodiments, the power information includes a power adjustment value, and the power adjustment value is determined based on the second RSSI threshold and the RSSI values of the plurality of first signals.

[0257] In some embodiments, the power information comprises a power adjustment value, which is determined based on a first value sent by the network device or a predefined first value.

[0258] In some embodiments, the power information comprises an RSSI value, which is determined based on a measurement on the first signal.

[0259] Step S3104: sending the power information.

[0260] The optional implementation of step S3104 can refer to the optional implementation of step S2104 in FIG. 2a, and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0261] In some embodiments, the terminal sends the power information to the first device, for example, sends the power adjustment value to the first device, but is not limited thereto, and can also send the power adjustment value to other entities.

[0262] In some embodiments, the terminal sends the power information to the first device, for example, sends the RSSI value to the first device, but is not limited thereto, and can also send the RSSI value to other entities.

[0263] The communication method involved in the embodiments of the present disclosure can comprise at least one of steps S3101 to S3104. Steps S3101 to S3104 can each be implemented as a separate embodiment, and under the condition of no contradiction, each embodiment can be combined and adjusted in order. For example, step S3103 can be implemented as an independent embodiment, but is not limited thereto.

[0264] In some embodiments, the plurality of steps are optional, and one or more of the steps can be omitted or replaced in different embodiments. For example, step S3101 is optional.

[0265] In some embodiments, other optional implementations can be referred to the description before or after FIG. 2a.

[0266] FIG. 3b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3b, the embodiment of the present disclosure relates to a communication method, which is executed by the terminal 101, and the above method comprises:

[0267] Step S3201: determining power information.

[0268] The optional implementation of step S3201 can refer to the optional implementation of step S2103 in FIG. 2a, and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0269] In some embodiments, the power information comprises a power adjustment value, which is determined based on the first RSSI threshold and the RSSI value of the first signal.

[0270] In some embodiments, the power information comprises a power adjustment value, which is determined based on the second RSSI threshold and the RSSI values of the plurality of first signals.

[0271] In some embodiments, the power information comprises a power adjustment value, which is determined based on the first value sent by the network device or the predefined first value.

[0272] In some embodiments, the power information comprises an RSSI value, which is determined based on the measurement of the first signal.

[0273] FIG. 4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4a, the embodiment of the present disclosure relates to a communication method, which is performed by the network device 102, and the above method comprises the following steps:

[0274] In step S4101, at least one of the first RSSI threshold, the first value and the second RSSI threshold is sent.

[0275] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in FIG. 2a, and other associated parts in the embodiments involved in FIG. 2a, which will not be described here.

[0276] In some embodiments, the network device 102 can send at least one of the first RSSI threshold, the first value and the second RSSI threshold to the terminal 101, but is not limited thereto, and can also send at least one of the first RSSI threshold, the first value and the second RSSI threshold to other entities.

[0277] In step S4102, power information is obtained.

[0278] The optional implementation of step S4102 can refer to the optional implementation of step S2104 in FIG. 2a, and other associated parts in the embodiments involved in FIG. 2a, which will not be described here.

[0279] In some embodiments, the power information comprises an RSSI value or a power adjustment value. The network device can obtain the RSSI value, determine the power adjustment value based on the RSSI value, and send the power adjustment value. The network device can also obtain the power adjustment value and send the power adjustment value.

[0280] In some embodiments, the network device 102 receives the power information sent by the terminal 101, but is not limited thereto, and can also receive the power information sent by other subjects.

[0281] In some embodiments, the network device 102 acquires the power information specified by the protocol.

[0282] In some embodiments, the network device 102 acquires the power information from upper layer(s).

[0283] In some embodiments, the network device 102 processes to obtain the power information.

[0284] In some embodiments, the step S4102 is omitted, and the network device 102 autonomously implements the function indicated by the power information, or the above function is default or default.

[0285] Step S4103, sending the power adjustment value.

[0286] The optional implementation of step S4103 can refer to the optional implementation of step S2105 in FIG. 2a, and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0287] In some embodiments, the network device 102 can receive the RSSI value sent by the terminal 101, and send the power adjustment value determined based on the RSSI value.

[0288] In some embodiments, the network device 102 can receive the power adjustment value sent by the terminal 101, and send the power adjustment value.

[0289] FIG. 4b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4b, the embodiment of the present disclosure relates to a communication method, which is performed by the network device 102, and the above method comprises:

[0290] Step S4201, sending at least one of the first RSSI threshold value, the first value and the second RSSI threshold value.

[0291] The optional implementation of step S4201 can refer to the optional implementation of step S2101 in FIG. 2a, and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0292] In some embodiments, the network device 102 can send at least one of the first RSSI threshold value, the first value and the second RSSI threshold value to the terminal 101, but is not limited thereto, and can also send at least one of the first RSSI threshold value, the first value and the second RSSI threshold value to other entities.

[0293] FIG. 5 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG. 5, the embodiment of the present disclosure relates to a communication method, which is performed by the first device 103, and the above method comprises:

[0294] Step S5101, acquiring power information.

[0295] The optional implementation of step S5101 can refer to the optional implementation of step S2104 or step S2105 of FIG. 2a, and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0296] In some embodiments, the power information includes a power adjustment value.

[0297] In some embodiments, the first device 103 receives the power information sent by the terminal 101, but is not limited thereto, and can also receive the power information sent by other subjects.

[0298] In some embodiments, the first device 103 receives the power information sent by the network device 102, but is not limited thereto, and can also receive the power information sent by other subjects.

[0299] In some embodiments, the first device 103 acquires the power information specified by a protocol.

[0300] In some embodiments, the first device 103 acquires the power information from upper layer(s).

[0301] In some embodiments, the first device 103 processes to obtain the power information.

[0302] In some embodiments, step S4102 is omitted, and the first device 103 autonomously implements the function indicated by the power information, or the above function is default or default.

[0303] FIG. 6 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG. 6, the embodiment of the present disclosure relates to a communication method, which is performed by the second device 104, and the above method comprises:

[0304] Step S6101, sending a first signal.

[0305] The optional implementation of step S6101 can refer to the optional implementation of step S2102 of FIG. 2a, and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0306] In some embodiments, the second device 104 sends the first signal to the terminal 101, but is not limited thereto, and can also send the first signal to other entities.

[0307] FIG. 7 is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 5, the embodiment of the present disclosure relates to a communication method, and the above method comprises:

[0308] Step S7101, the terminal 101 determines power information.

[0309] Step S7102a, the terminal 101 sends the power adjustment value to the first device 103; or, the terminal 101 sends the RSSI value to the network device 102.

[0310] Step S7102b, the network device 102 determines the power adjustment value based on the RSSI value, and sends the power adjustment value to the first device 103.

[0311] Step S7103, the first device 103 receives the power adjustment value.

[0312] In some embodiments, the above method can include the method of the above embodiments related to the communication system 100, the terminal 101, the network device 102, the first device 103, and the second device 104, which will not be repeated here.

[0313] The present disclosure provides the following specific embodiments:

[0314] Suppose, when the UE controls the CW node and decides the power adjustment value (TPC value) in the CW node transmission power, the following method is used:

[0315] In some embodiments, the CW node can be a node within the topology, can be an intermediate UE node, or another 1 node, or the CW node is a node outside the topology, etc.

[0316] In some embodiments, the UE measures the last received D2R signal, compares the measured RSSI value of the D2R signal with the RSSI threshold value to determine the power adjustment value, and the power adjustment value = RSSI threshold value - RSSI measurement value of the D2R signal.

[0317] In some embodiments, the base station pre-configures the RSSI threshold value, or the RSSI threshold value is a predefined value.

[0318] In some embodiments, the UE does not receive D2R within a period of time T, and the UE uses a predefined value or a base station pre-configured value as the power adjustment value.

[0319] In some embodiments, the time T is a protocol specified time, a predefined time, or a base station pre-configured time, and the time T can be in the range of [TR2D_min, TR2D_max]. Wherein, TR2D_max is the maximum time from the UE sending an R2D signal to receiving a D2R signal. TR2D_min is the minimum time from the UE sending an R2D signal to receiving a D2R signal.

[0320] In some embodiments, the time T is TR2D_max. That is, the maximum time from the UE sending an R2D signal to receiving a D2R signal.

[0321] In some embodiments, the time T is TR2D_min. That is, the UE transmits 1 R2D signal to the shortest time of receiving the D2R signal.

[0322] In some embodiments, the time T is a period of time T=[t1, t2], where t1 is the time corresponding to N chip / OFDM symbol / slot before the D2R transmission occasion (i-i0), and t2 is the time corresponding to M chip / OFDM symbol / slot before the D2R transmission occasion i, where i0>0, and is the smallest integer satisfying i-i0-N<i-M, and N and M are integers, which can be predefined, preconfigured by the network device, etc.

[0323] In some embodiments, the UE measures n D2R signals (n is an integer greater than or equal to 1) according to a period of time T to obtain n RSSI measurement values {RRSI1, RSSI2, ……, RSSIn-1, RSSIn} and compares the RSSI threshold to determine the power adjustment value.

[0324] Optionally, the power adjustment value = RSSI threshold-max{RRSI1, RSSI2, ……, RSSIn-1, RSSIn}, max is the maximum value symbol, that is, the maximum value of the n RRSI measurement values is subtracted from the RSSI threshold to obtain the power adjustment value.

[0325] Optionally, the power adjustment value = RSSI threshold-min{RRSI1, RSSI2, ……, RSSIn-1, RSSIn}, min is the minimum value symbol, that is, the minimum value of the n RRSI measurement values is subtracted from the RSSI threshold to obtain the power adjustment value.

[0326] Optionally, the power adjustment value = RSSI threshold-average{RRSI1, RSSI2, ……, RSSIn-1, RSSIn}, average is the average value symbol, that is, the average value of the n RRSI measurement values is subtracted from the RSSI threshold to obtain the power adjustment value.

[0327] Optionally, where from i to n, the sum is taken, that is, that is, the sum of the difference values obtained by respectively subtracting the n RRSI measurement values and the RSSI threshold is taken as the power adjustment value.

[0328] wherein the definition of the time T is defined in the above embodiments.

[0329] In some embodiments, the UE indicates the measured RSSI or the determined power adjustment value to the base station, which indicates the power adjustment value to the CW node.

[0330] In some embodiments, the UE sends the measured RSSI or the determined power adjustment value to the base station through an uplink channel, such as a PUSCH, a PUCCH, a PDRCH, etc.

[0331] In some embodiments, the base station indicates the power adjustment value to the CW node through RRC signaling, downlink physical layer signaling, a MAC CE, a downlink command, a PRDCH, etc.

[0332] The embodiments of the present disclosure further provide a device (which can also be referred to as a communication device) for implementing any of the above methods, for example, a device including units or modules for implementing the steps performed by a terminal in any of the above methods. For another example, another device is provided, including units or modules for implementing the steps performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0333] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize any of the above methods or realize the functions of each unit or module of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship of elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the above units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0334] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of a hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, the hardware circuit can also be designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), or the like.

[0335] FIG. 8a is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 8a, the terminal 8100 can include at least one of a processing module 8101 and a transceiver module 8102. The processing module 8101 is configured to determine power information, and the power information is used by a first device to determine a transmission power of a continuous wave (CW) transmitted to a second device.

[0336] In some embodiments, the power information includes a power adjustment value.

[0337] In some embodiments, the processing module 8101 determines the power information in the following manner: receiving a first signal transmitted by the second device, and measuring a received signal strength indication (RSSI) value; and determining a difference between the RSSI value and a first RSSI threshold value as the power adjustment value.

[0338] In some embodiments, the first RSSI threshold value is transmitted by a network device, or is specified by a protocol, or is predefined between the network device and the terminal.

[0339] In some embodiments, the processing module 8101 determines the power information by determining a predefined first value or a first value sent by the network device as the power adjustment value.

[0340] In some embodiments, the processing module 8101 determines the predefined value or the value sent by the network device as the power adjustment value by determining the predefined first value or the first value sent by the network device as the power adjustment value within a second time length; wherein the terminal does not receive the first signal sent by the second device within the second time length.

[0341] In some embodiments, the second time length comprises at least one of the following: a time length specified by a protocol; a time length sent by the network device; a time length predefined between the network device and the terminal; a time length determined by the terminal based on a transmission occasion of the first signal.

[0342] In some embodiments, the second time length ranges from T1 to T2, T1 is the shortest time length required for the terminal to send the second signal to receive the first signal, and T2 is the longest time length required for the terminal to send the second signal to receive the first signal; wherein the first signal is a signal sent by the second device to the terminal, and the second signal is a signal sent by the terminal to the second device.

[0343] In some embodiments, the starting position of the second time length is a time point N time units away from the transmission occasion of the first signal, and the ending position of the second time length is a time point M time units away from the transmission occasion of the first signal; wherein M and N are positive integers, and M is less than N.

[0344] In some embodiments, the processing module 8101 determines the power information by: the terminal receives a plurality of first signals within a first time length and measures a plurality of RSSI values; the terminal determines the difference between the maximum value of the plurality of RSSI values and a second RSSI threshold as the power adjustment value; or, the terminal determines the difference between the minimum value of the plurality of RSSI values and the second RSSI threshold as the power adjustment value; or, the terminal determines the difference between the average value of the plurality of RSSI values and the second RSSI threshold as the power adjustment value; or, the terminal subtracts the second RSSI threshold from each of the plurality of RSSI values to obtain a plurality of difference values, and determines the sum of the plurality of difference values as the power adjustment value.

[0345] In some embodiments, the second RSSI threshold is sent by the network device, specified by a protocol, or predefined between the network device and the terminal.

[0346] In some embodiments, the terminal further comprises a transceiver module 8102 for sending the power adjustment value to the first device; or, the terminal sends the power adjustment value to the network device.

[0347] In some embodiments, the power information comprises an RSSI value of the first signal, the first signal being a signal sent by the second device to the terminal, and the processing module 8101 determines the power information by: the terminal receiving the first signal sent by the second device and measuring the RSSI value.

[0348] In some embodiments, the terminal further comprises a transceiver module 8102 configured to send the RSSI value to the network device.

[0349] It can be understood that the transceiver can be integrated into the processing module 8101 in the present disclosure, and in some embodiments, the processing module 8101 can implement part of the functions of the transceiver module 8102. Accordingly, the processor can be integrated into the transceiver module 8102 in the present disclosure, and in some embodiments, the transceiver module 8102 can implement part of the functions of the processing module 8101.

[0350] FIG. 8b is a structural schematic diagram of a network device according to an embodiment of the present disclosure. As shown in FIG. 8b, the network device 8200 can comprise at least one of a transceiver module 8201 and a processing module 8202. The transceiver module 8201 is configured to send a first RSSI threshold value or a first value or a second RSSI threshold value to a terminal, the first RSSI threshold value or the first value or the second RSSI threshold value being used to determine power information, and a power adjustment value being used by a first device to determine a transmission power of a continuous electromagnetic wave (CW) sent to a second device.

[0351] In some embodiments, the power information comprises the power adjustment value.

[0352] In some embodiments, the power adjustment value is determined based on the first RSSI threshold value and an RSSI value of the first signal, the first signal being a signal sent by the second device to the terminal.

[0353] In some embodiments, the power adjustment value is determined based on the first value.

[0354] In some embodiments, the transceiver module 8201 is further configured to send a second time length to the terminal, the second time length being a time length during which the power adjustment value is determined based on the first value, and the terminal not receiving a signal sent by the second device within the second time length.

[0355] In some embodiments, the second time length is in a range of T1 to T2, T1 being a shortest time length required for the terminal to send a second signal to receive the first signal, and T2 being a longest time length required for the terminal to send the second signal to receive the first signal, the first signal being a signal sent by the second device to the terminal, and the second signal being a signal sent by the terminal to the second device.

[0356] In some embodiments, the starting position of the second time length is a time point before the transmission occasion of the first signal, and the transmission occasion is spaced by N time units, and the ending position of the second time length is a time point before the transmission occasion, and the transmission occasion is spaced by M time units; wherein M and N are positive integers, and M is less than N.

[0357] In some embodiments, the power adjustment value is determined based on the second RSSI threshold and the RSSI values of the plurality of first signals in the first time length, and the first signal is a signal sent by the second device to the terminal.

[0358] In some embodiments, the transceiver module 8201 is further configured to receive the power adjustment value sent by the terminal, and the network device sends the power adjustment value to the first device.

[0359] In some embodiments, the power information includes the RSSI value.

[0360] In some embodiments, the transceiver module 8201 is further configured to receive the RSSI value sent by the terminal, and the network device determines the power adjustment value based on the RSSI value and the first RSSI threshold, or the network device determines the power adjustment value based on the RSSI value and the second RSSI threshold, and the network device sends the power adjustment value to the first device.

[0361] It can be understood that the transceiver module 8201 in the present disclosure can integrate a processor, and in some embodiments, the transceiver module 8201 can realize part of the functions of the processing module 8202. Accordingly, the processing module 8202 in the present disclosure can integrate a transceiver, and in some embodiments, the processing module 8202 can realize part of the functions of the transceiver module 8201.

[0362] FIG. 8c is a structural schematic diagram of a first device according to an embodiment of the present disclosure. As shown in FIG. 8c, the first device 8300 can include at least one of a transceiver module 8301 and a processing module 8302. The transceiver module 8301 is configured to receive a power adjustment value sent by a terminal, or receive a power adjustment value sent by a network device, and the power adjustment value is used by the first device to determine the transmission power of a continuous electromagnetic wave (CW) sent to a second device.

[0363] It can be understood that the transceiver module 8301 in the present disclosure can integrate a processor, and in some embodiments, the transceiver module 8301 can realize part of the functions of the processing module 8302. Accordingly, the processing module 8302 in the present disclosure can integrate a transceiver, and in some embodiments, the processing module 8302 can realize part of the functions of the transceiver module 8301.

[0364] FIG. 8d is a structural schematic diagram of the second device according to an embodiment of the present disclosure. As shown in FIG. 8d, the second device 8400 can include at least one of a transceiver module 8401 and a processing module 8402. The transceiver module 8401 is configured to send a first signal to a terminal, the first signal being used to measure an RSSI value, the RSSI being used to determine power information, and the power information being used by the first device to determine a transmission power of a continuous electromagnetic wave (CW) sent to the second device.

[0365] It can be understood that the transceiver module 8401 in the present disclosure can integrate a processor, and in some embodiments, the transceiver module 8401 can implement part of the functions of the processing module 8402. Accordingly, the processing module 8402 in the present disclosure can integrate a transceiver, and in some embodiments, the processing module 8402 can implement part of the functions of the transceiver module 8401.

[0366] FIG. 9a is a structural schematic diagram of a communication device according to an embodiment of the present disclosure. The communication device 9100 can be a network device, a terminal, a chip, a chip system, or a processor supporting the network device to implement any of the above methods, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. Alternatively, the network device can be an access network device, a core network device, or the like. Alternatively, the terminal can be a user equipment or the like. The communication device 9100 can be used to implement the methods described in the above method embodiments, and details can be referred to the descriptions in the above method embodiments.

[0367] As shown in FIG. 9a, the communication device 9100 includes one or more processors 9101. The processor 9101 can be a general-purpose processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be configured to process a communication protocol and communication data, and the central processing unit can be configured to control the communication device, execute a program, and process data of the program. The communication device 9100 is configured to execute any of the above methods. Alternatively, the communication device can be a base station, a baseband chip, a terminal device, a terminal device chip, a DU, a CU, or the like.

[0368] In some embodiments, the communication device 9100 further includes one or more memories 9102 configured to store instructions. Alternatively, all or part of the memory 9102 can also be outside the communication device 9100.

[0369] In some embodiments, the communication device 9100 further includes one or more transceivers 9103. When the communication device 9100 includes one or more transceivers 9103, the transceiver 9103 performs the communication steps S2101 such as sending and / or receiving in the above methods, and the processor 9101 performs other steps.

[0370] In some embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, etc. can be replaced by each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced by each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced by each other.

[0371] In some embodiments, the communication device 9100 can include one or more interface circuits 9104. Optionally, the interface circuit 9104 is connected with the memory 9102, and the interface circuit 9104 can be used to receive signals from the memory 9102 or other devices, and can be used to send signals to the memory 9102 or other devices. For example, the interface circuit 9104 can read instructions stored in the memory 9102 and send the instructions to the processor 9101.

[0372] The communication device 9100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 9100 described in the present disclosure is not limited thereto, and the structure of the communication device 9100 can not be limited by Figure 9a. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: 1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally also include storage components for storing data, programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handset, mobile unit, vehicle-mounted device, network device, cloud device, artificial intelligence device, etc.; (6) other, etc.

[0373] Figure 9b is a schematic diagram of a chip structure according to an embodiment of the present disclosure. For the case where the communication device 9100 can be a chip or a chip system, the structure of the chip 9200 can be referred to as shown in Figure 9b, but is not limited thereto.

[0374] The chip 9200 includes one or more processors 9201, and the chip 9200 is configured to execute any of the above methods.

[0375] In some embodiments, the chip 9200 further includes one or more interface circuits 9202. Optionally, the interface circuit 9202 is connected with the memory 9203, and the interface circuit 9202 can be used to receive signals from the memory 9203 or other devices, and can be used to send signals to the memory 9203 or other devices. For example, the interface circuit 9202 can read instructions stored in the memory 9203 and send the instructions to the processor 9201.

[0376] In some embodiments, the interface circuit 9202 performs communication steps (e.g., transmitting and / or receiving) in the above-described methods S2101, and the processor 9201 performs other steps.

[0377] In some embodiments, the terms interface circuit, interface, transceiver pin, and transceiver can be replaced by each other.

[0378] In some embodiments, the chip 9200 further includes one or more memories 9203 for storing instructions. Optionally, all or part of the memories 9203 can be outside the chip 9200.

[0379] The present disclosure further provides a storage medium having instructions stored thereon, which, when executed on the communication device 9100, cause the communication device 9100 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 is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a transitory storage medium.

[0380] The present disclosure further provides a program product, which, when executed by the communication device 9100, causes the communication device 9100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0381] The present disclosure further provides a computer program, which, when executed on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method characterized by comprising: The method comprises: The terminal determines power information, which is used by the first device to determine the transmission power of the continuous electromagnetic wave (CW) transmitted to the second device.

2. The method of claim 1, wherein, The power information comprises a power adjustment value.

3. The method of claim 2, wherein, The power information is determined in the following manner: The terminal receives a first signal transmitted by the second device and measures a received signal strength indicator (RSSI) value; the terminal determines the difference between the RSSI value and a first RSSI threshold value as the power adjustment value. Or, The terminal determines a predefined first value or a first value transmitted by the network device as the power adjustment value. Or, The terminal receives multiple first signals within a first time duration and measures multiple RSSI values; the terminal determines the difference between the maximum value of the multiple RSSI values and a second RSSI threshold value as the power adjustment value. Or, The terminal receives multiple first signals within a first time duration and measures multiple RSSI values; the terminal determines the difference between the minimum value of the multiple RSSI values and a second RSSI threshold value as the power adjustment value. Or, The terminal receives multiple first signals within a first time duration and measures multiple RSSI values; the terminal determines the difference between the average value of the multiple RSSI values and a second RSSI threshold value as the power adjustment value. Or, The terminal receives multiple first signals within a first time duration and measures multiple RSSI values. The terminal subtracts the multiple RSSI values from a second RSSI threshold value respectively to obtain multiple difference values, and determines the sum of the multiple difference values as the power adjustment value.

4. The method of claim 3, wherein, The determination of the predefined first value or the first value transmitted by the network device as the power adjustment value comprises: Determining the predefined first value or the first value transmitted by the network device as the power adjustment value within a second time duration. The terminal does not receive the first signal transmitted by the second device within the second time duration.

5. The method of claim 4, wherein, The second time duration comprises at least one of the following: A time duration specified by a protocol; A time duration transmitted by the network device; A time duration predefined between the network device and the terminal; A time duration determined by the terminal based on the transmission occasion of the first signal.

6. The method according to any of claims 4-5, characterized by, The value range of the second time duration is T1 to T2, T1 is the shortest time duration required by the terminal to transmit a second signal to receive the first signal, and T2 is the longest time duration required by the terminal to transmit the second signal to receive the first signal. The first signal is a signal transmitted by the second device to the terminal, and the second signal is a signal transmitted by the terminal to the second device.

7. The method according to any one of claims 4-6, characterized in that, The starting position of the second time duration is the time point N time units away from the transmission occasion of the first signal, and the ending position of the second time duration is the time point M time units away from the transmission occasion of the first signal. M and N are positive integers, and M is less than N.

8. The method according to any one of claims 2-7, characterized in that, The method further comprises: The terminal transmits the power adjustment value to the first device; or The terminal transmits the power adjustment value to the network device.

9. The method of claim 1, wherein, The power information comprises an RSSI value of a first signal, the first signal being a signal sent by the second device to the terminal, and the power information is determined in the following manner: The terminal receives the first signal sent by the second device and measures to obtain the RSSI value.

10. The method according to claim 2 or 9, characterized in that, The method further comprises: The terminal sends the RSSI value to the network device.

11. A communication method, comprising: The method comprises: The network device sends at least one of a first RSSI threshold value and a first value, and a second RSSI threshold value to the terminal; The at least one of the first RSSI threshold value and the first value, and the second RSSI threshold value is used to determine the power information; The power information is used by the first device to determine the transmission power of the continuous electromagnetic wave (CW) sent to the second device.

12. The method of claim 11, wherein, The power information comprises a power adjustment value.

13. The method of claim 12, wherein, The power adjustment value is a difference between the first RSSI threshold value and the RSSI value of the first signal, the first signal being a signal sent by the second device to the terminal; or The power adjustment value is the first value; or The power adjustment value is a difference between the second RSSI threshold value and a maximum value of the RSSI values of the first signals in the first time period; Or The power adjustment value is a difference between the second RSSI threshold value and a minimum value of the RSSI values of the first signals in the first time period; Or The power adjustment value is a difference between the second RSSI threshold value and an average value of the RSSI values of the first signals in the first time period; Or The power adjustment value is a sum of a plurality of difference values obtained by subtracting the RSSI values of the first signals in the first time period from the second RSSI threshold value respectively.

14. The method of claim 13, wherein, The method further comprises: The network device sends a second time period to the terminal, the second time period being a time period for determining the power adjustment value based on the first value, and the terminal does not receive a signal sent by the second device in the second time period.

15. The method of claim 14, wherein, The second time period has a value range of T1 to T2, the T1 being a shortest time period required for the terminal to send a second signal to receive a first signal, and the T2 being a longest time period required for the terminal to send the second signal to receive the first signal; The first signal is a signal sent by the second device to the terminal, and the second signal is a signal sent by the terminal to the second device.

16. The method of any of claims 13-14, wherein, The starting position of the second time period is a time point that is spaced apart from a transmission time point of the first signal by N time units, and the ending position of the second time period is a time point that is spaced apart from the transmission time point by M time units; The M and the N are positive integers, and the M is smaller than the N.

17. The method according to any one of claims 12-16, characterized by, The method further comprises: The network device receives the power adjustment value sent by the terminal; The network device sends the power adjustment value to the first device.

18. The method of claim 11, wherein, The power information comprises an RSSI value.

19. The method of claim 18, wherein, The method further comprises: The network device receives the RSSI value sent by the terminal; The network device determines a power adjustment value based on the RSSI value and a first RSSI threshold value, or determines a power adjustment value based on the RSSI value and a second RSSI threshold value; The network device sends the power adjustment value to the first device.

20. A method of communication, comprising: The method comprises: A terminal determines power information, the power information being used by a first device to determine a transmission power for transmitting a continuous electromagnetic wave (CW) to a second device; The power information comprises a power adjustment value or an RSSI value; The terminal sends the power adjustment value to the first device; or, the terminal sends an RSSI value to a network device, the network device determines a power adjustment value based on the RSSI value and sends the power adjustment value to the first device; The first device receives the power adjustment value.

21. A communications device, characterized by The communication device is configured to perform the communication method of any one of claims 1-10 or 11-19.

22. A communication system, characterized by Comprise: A terminal and a network device, wherein the terminal is configured to implement the communication method of any one of claims 1-10, and the network device is configured to implement the communication method of any one of claims 11-19.

23. A storage medium characterized by Comprise: The storage medium stores instructions, which, when executed on a communication device, cause the communication device to perform the communication method of any one of claims 1-10 or 11-19.

24. A program product, characterized by Comprise: A computer program, which, when executed on a communication device, causes the communication device to perform the communication method of any one of claims 1-10 or 11-19.

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