Channel measurement information determination method, terminal, and network device

Abstract

The present disclosure relates to a channel measurement information determination method, a terminal, and a network device. The method is executed by a terminal and comprises: determining the power of a reference PDSCH in an OTFS system, and determining channel measurement information on the basis of the power of the reference PDSCH. Thus, a terminal can determine the power of a reference PDSCH in an OTFS system, and then determine channel measurement information on the basis of the power of the reference PDSCH, such that the effectiveness of channel measurement information measurement can be improved.

Description

Channel measurement information determination method, terminal, and network device Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a method for determining channel measurement information, a terminal, and a network device. Background Art

[0002] The orthogonal frequency division multiplexing (OFDM) system can effectively suppress the fading caused by multipath delay by adding a cyclic prefix (CP).

[0003] Summary of the Invention

[0004] The channel measurement information determination method, terminal, and network device provided in the embodiments of the present disclosure are used to solve the problem of how to determine the power of a reference physical downlink shared channel (PDSCH) in an OTFS system to meet the problem of the terminal determining channel measurement information based on the power of the reference PDSCH.

[0005] The embodiments of the present disclosure provide a method for determining channel measurement information, a terminal, and a network device.

[0006] According to a first aspect of an embodiment of the present disclosure, a method for determining channel measurement information is proposed, which is performed by a terminal, including: determining the power of a reference PDSCH in an OTFS system, and determining channel measurement information based on the power of the reference PDSCH.

[0007] In the above embodiment, the terminal can determine the power of the reference PDSCH in the OTFS system, and then determine the channel measurement information based on the power of the reference PDSCH, which can improve the effectiveness of the channel measurement information measurement.

[0008] According to a second aspect of an embodiment of the present disclosure, a method for determining channel measurement information is proposed, which is executed by a network device, including: determining the power of a reference PDSCH in an OTFS system, wherein the power of the reference PDSCH is used by a terminal to determine channel measurement information.

[0009] In the above embodiment, the network device can determine the power of the reference PDSCH in the OTFS system. The power of the reference PDSCH is used by the terminal to determine the channel measurement information. Then, when the network device receives the channel measurement information sent by the terminal, it can determine the actual channel state based on the power of the reference PDSCH, so as to accurately schedule downlink data transmission based on the actual channel state, thereby improving the performance of downlink data transmission.

[0010] According to a third aspect of an embodiment of the present disclosure, a method for determining channel measurement information is proposed, wherein a terminal determines the power of a reference PDSCH in an OTFS system, and determines channel measurement information based on the power of the reference PDSCH; a network device determines the power of a reference PDSCH in the OTFS system, wherein the power of the reference PDSCH is used by the terminal to determine the channel measurement information.

[0011] In the above embodiment, the terminal determines the power of the reference PDSCH in the OTFS system, and then determines the channel measurement information based on the power of the reference PDSCH, which can improve the effectiveness of the channel measurement information measurement, and the network device can determine the power of the reference PDSCH in the OTFS system, and then when receiving the channel measurement information sent by the terminal, it can determine the actual channel state based on the power of the reference PDSCH, so as to accurately schedule downlink transmission based on the actual channel state, thereby improving the performance of downlink data transmission.

[0012] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, including: a processing module, configured to determine the power of a reference PDSCH in an OTFS system, and determine channel measurement information based on the power of the reference PDSCH.

[0013] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, including: a processing module, configured to determine the power of a reference PDSCH in an OTFS system, wherein the power of the reference PDSCH is used by a terminal to determine channel measurement information.

[0014] According to a sixth aspect of an embodiment of the present disclosure, a terminal is provided, comprising: one or more processors; a memory coupled to the processor, wherein the memory stores instructions, and when the instructions are executed by the processor, the terminal executes the method described in the first aspect.

[0015] According to a seventh aspect of an embodiment of the present disclosure, a network device is provided, comprising: one or more processors; a memory coupled to the processor, wherein the memory stores instructions, and when the instructions are executed by the processor, the network device is used to execute the method described in the second aspect.

[0016] According to an eighth aspect of an embodiment of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the method described in the first aspect, and the network device is configured to implement the method described in the second aspect.

[0017] According to a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0019] FIG1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure;

[0020] FIG2 is a schematic diagram of transmitting a reference signal based on an OTFS system provided by an embodiment of the present disclosure;

[0021] FIG3 is a flow chart of a method for determining channel measurement information provided by an embodiment of the present disclosure;

[0022] FIG4A is a schematic diagram of a power relationship provided by an embodiment of the present disclosure;

[0023] FIG4B is a schematic diagram of another power relationship provided by an embodiment of the present disclosure;

[0024] FIG4C is a schematic diagram of another power relationship provided by an embodiment of the present disclosure;

[0025] FIG5A is a schematic diagram of another power relationship provided by an embodiment of the present disclosure;

[0026] FIG5B is a schematic diagram of another power relationship provided by an embodiment of the present disclosure;

[0027] FIG5C is a schematic diagram of another power relationship provided by an embodiment of the present disclosure;

[0028] FIG6A is a schematic diagram of another power relationship provided by an embodiment of the present disclosure;

[0029] FIG6B is a schematic diagram of another power relationship provided by an embodiment of the present disclosure;

[0030] FIG6C is a schematic diagram of another power relationship provided by an embodiment of the present disclosure;

[0031] FIG7 is a flowchart of another method for determining channel measurement information provided by an embodiment of the present disclosure;

[0032] FIG8 is a flowchart of another method for determining channel measurement information provided by an embodiment of the present disclosure;

[0033] FIG9A is a structural diagram of a terminal provided by an embodiment of the present disclosure;

[0034] FIG9B is a structural diagram of a network device provided by an embodiment of the present disclosure;

[0035] FIG10A is a structural diagram of a communication device provided by an embodiment of the present disclosure;

[0036] FIG10B is a schematic structural diagram of a chip provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] The embodiments of the present disclosure provide a method for determining channel measurement information, a terminal, and a network device.

[0038] In a first aspect, an embodiment of the present disclosure proposes a method for determining channel measurement information, which is executed by a terminal, including: determining the power of a reference PDSCH in an OTFS system, and determining channel measurement information based on the power of the reference PDSCH.

[0039] In the above embodiment, the terminal can determine the power of the reference PDSCH in the OTFS system, and then determine the channel measurement information based on the power of the reference PDSCH, which can improve the effectiveness of the channel measurement information measurement.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the above method further includes: the terminal sending channel measurement information to the network device.

[0041] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the reference PDSCH in the OTFS system, including at least one of the following: determining the power of the data symbols of the reference PDSCH, wherein the power of the reference PDSCH includes the power of the data symbols of the reference PDSCH; determining the power of the demodulation reference signal DMRS symbol of the reference PDSCH, wherein the power of the reference PDSCH includes the power of the demodulation reference signal DMRS symbol of the reference PDSCH.

[0042] In the above embodiment, the terminal can determine at least one of the power of the data symbol of the reference PDSCH and the power of the demodulation reference signal DMRS symbol of the reference PDSCH to determine the channel measurement information based on at least one of the power of the data symbol of the reference PDSCH and the power of the DMRS symbol of the reference PDSCH.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the data symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a first offset value; and determining the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and the first offset value.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a first offset value; determining the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and the first offset value, and determining the second offset value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the second offset value.

[0045] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a third offset value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and the third offset value.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the data symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a third offset value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and the third offset value, and determining a fourth offset value; determining the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and the fourth offset value.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the data symbol of the reference PDSCH and the power of the DMRS symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining the fifth offset value and the sixth offset value; determining the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and the fifth offset value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and the sixth offset value.

[0048] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the data symbol of the reference PDSCH, including: determining the power of the first information; determining the seventh offset value; and determining the power of the data symbol of the reference PDSCH based on the power of the first information and the seventh offset value.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the first information; determining the seventh offset value; determining the power of the data symbol of the reference PDSCH based on the power of the first information and the seventh offset value, and determining the eighth offset value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the eighth offset value.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the first information; determining the ninth offset value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the first information and the ninth offset value.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the data symbol of the reference PDSCH, including: determining the power of the first information; determining the ninth offset value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the first information and the ninth offset value, and determining the tenth offset value; determining the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and the tenth offset value.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the data symbols of the reference PDSCH and the power of the DMRS symbols of the reference PDSCH, including: determining the power of the first information; determining the eleventh offset value and the twelfth offset value; determining the power of the data symbols of the reference PDSCH based on the power of the first information and the eleventh offset value; determining the power of the DMRS of the reference PDSCH based on the power of the first information and the twelfth offset value.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the data symbols of the reference PDSCH, including: determining the power of the data symbols of the PDSCH; determining the first parameter value; and determining the power of the data symbols of the reference PDSCH based on the power of the data symbols of the PDSCH and the first parameter value.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the data symbol of the PDSCH; determining a first parameter value; determining the power of the data symbol of the reference PDSCH based on the power of the data symbol of the PDSCH and the first parameter value, and determining a second parameter value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the second parameter value.

[0055] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the DMRS symbol of the PDSCH; determining a third parameter value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS of the PDSCH and the third parameter value.

[0056] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the data symbol of the reference PDSCH, including: determining the power of the DMRS symbol of the PDSCH; determining a third parameter value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS of the PDSCH and the third parameter value, and determining a fourth parameter value; determining the power of the data symbol of the reference PDSCH based on the power of the DMRS of the reference PDSCH and the fourth parameter value.

[0057] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH and the power of the data symbol of the reference PDSCH, including: determining the power of the data symbol of the PDSCH, and the power of the DMRS of the PDSCH; determining the fifth parameter value and the sixth parameter value; determining the power of the data symbol of the reference PDSCH based on the power of the data symbol of the PDSCH and the fifth parameter value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS of the PDSCH and the sixth parameter value.

[0058] In combination with some embodiments of the first aspect, in some embodiments, the power of the DMRS symbol of the reference PDSCH includes at least one of the following: the average power on the resource element RE occupied by the DMRS of the reference PDSCH; the average power on the RE occupied by the DMRS of the reference PDSCH minus the first value.

[0059] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the CSI-RS in the OTFS system, including: determining the power of the first information; determining the power offset value; and determining the power of the CSI-RS based on the power and the power offset value of the first information.

[0060] In combination with some embodiments of the first aspect, in some embodiments, the power of the CSI-RS in the OTFS system includes at least one of the following: the average power on the REs occupied by the CSI-RS in the OTFS system; the average power on the REs occupied by the CSI-RS in the OTFS system minus the second value.

[0061] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the first information, including at least one of the following: determining the power EPRE on each RE of the SSS in the orthogonal frequency division multiplexing OFDM system; determining the EPRE of the secondary synchronization signal SSS in the OTFS system; determining the EPRE of the data symbol of the physical broadcast channel PBCH in the OTFS system; determining the power of the DMRS symbol of the PBCH in the OTFS system.

[0062] In combination with some embodiments of the first aspect, in some embodiments, the terminal determines the power of the first information, including: receiving indication information sent by a network device, wherein the indication information is used to indicate the power of the first information; and determining the power of the first information according to the indication information.

[0063] In combination with some embodiments of the first aspect, in some embodiments, the power of the DMRS symbol of the PBCH in the OTFS system includes at least one of the following: the average power on the RE occupied by the DMRS of the PBCH in the OTFS system; the average power on the RE occupied by the DMRS of the PBCH in the OTFS system minus a third value.

[0064] In a second aspect, an embodiment of the present disclosure proposes a method for determining channel measurement information, which is executed by a network device, including: determining the power of a reference PDSCH in an OTFS system, wherein the power of the reference PDSCH is used by a terminal to determine channel measurement information.

[0065] In the above embodiment, the network device can determine the power of the reference PDSCH in the OTFS system. The power of the reference PDSCH is used by the terminal to determine the channel measurement information. Then, when the network device receives the channel measurement information sent by the terminal, it can determine the actual channel state based on the power of the reference PDSCH, so as to accurately schedule downlink data transmission based on the actual channel state, thereby improving the performance of downlink data transmission.

[0066] In combination with some embodiments of the second aspect, in some embodiments, the above method further includes: the network device receives channel measurement information sent by the terminal.

[0067] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the reference PDSCH in the OTFS system, including at least one of the following: determining the power of the data symbols of the reference PDSCH, wherein the power of the reference PDSCH includes the power of the data symbols of the reference PDSCH; determining the power of the DMRS symbols of the reference PDSCH, wherein the power of the reference PDSCH includes the power of the DMRS symbols of the reference PDSCH.

[0068] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a first offset value; and determining the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and the first offset value.

[0069] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a first offset value; determining the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and the first offset value, and determining the second offset value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the second offset value.

[0070] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a third offset value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and the third offset value.

[0071] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a third offset value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and the third offset value, and determining a fourth offset value; determining the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and the fourth offset value.

[0072] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the data symbol of the reference PDSCH and the power of the DMRS symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining the fifth offset value and the sixth offset value; determining the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and the fifth offset value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and the sixth offset value.

[0073] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining the power of the first information; determining the seventh offset value; and determining the power of the data symbol of the reference PDSCH based on the power of the first information and the seventh offset value.

[0074] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the first information; determining the seventh offset value; determining the power of the data symbol of the reference PDSCH based on the power of the first information and the seventh offset value, and determining the eighth offset value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the eighth offset value.

[0075] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the first information; determining the ninth offset value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the first information and the ninth offset value.

[0076] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining the power of the first information; determining the ninth offset value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the first information and the ninth offset value, and determining the tenth offset value; determining the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and the tenth offset value.

[0077] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the data symbols of the reference PDSCH and the power of the DMRS symbols of the reference PDSCH, including: determining the power of the first information; determining the eleventh offset value and the twelfth offset value; determining the power of the data symbols of the reference PDSCH based on the power of the first information and the eleventh offset value; determining the power of the DMRS of the reference PDSCH based on the power of the first information and the twelfth offset value.

[0078] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the data symbols of the reference PDSCH, including: determining the power of the data symbols of the PDSCH; determining a first parameter value; and determining the power of the data symbols of the reference PDSCH based on the power of the data symbols of the PDSCH and the first parameter value.

[0079] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the data symbol of the PDSCH; determining a first parameter value; determining the power of the data symbol of the reference PDSCH based on the power of the data symbol of the PDSCH and the first parameter value, and determining the second parameter value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the second parameter value.

[0080] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the DMRS symbol of the PDSCH; determining a third parameter value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS of the PDSCH and the third parameter value.

[0081] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining the power of the DMRS symbol of the PDSCH; determining a third parameter value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS of the PDSCH and the third parameter value, and determining a fourth parameter value; determining the power of the data symbol of the reference PDSCH based on the power of the DMRS of the reference PDSCH and the fourth parameter value.

[0082] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH and the power of the data symbol of the reference PDSCH, including: determining the power of the data symbol of the PDSCH, and the power of the DMRS of the PDSCH; determining the fifth parameter value and the sixth parameter value; determining the power of the data symbol of the reference PDSCH based on the power of the data symbol of the PDSCH and the fifth parameter value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS of the PDSCH and the sixth parameter value.

[0083] In combination with some embodiments of the second aspect, in some embodiments, the power of the DMRS symbol of the reference PDSCH includes at least one of the following: the average power on the RE occupied by the DMRS of the reference PDSCH; the average power on the RE occupied by the DMRS of the reference PDSCH minus the first value.

[0084] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the CSI-RS in the OTFS system, including: determining the power of the first information; determining the power offset value; and determining the power of the CSI-RS based on the power and the power offset value of the first information.

[0085] In combination with some embodiments of the first aspect, in some embodiments, the power of the CSI-RS in the OTFS system includes at least one of the following: the average power on the REs occupied by the CSI-RS in the OTFS system; the average power on the REs occupied by the CSI-RS in the OTFS system minus the second value.

[0086] In combination with some embodiments of the second aspect, in some embodiments, the network device determines the power of the first information, including at least one of the following: determining the EPRE of the SSS in the OFDM system; determining the EPRE of the SSS in the OTFS system; determining the EPRE of the data symbol of the PBCH in the OTFS system; determining the power of the DMRS symbol of the PBCH in the OTFS system.

[0087] In combination with some embodiments of the second aspect, in some embodiments, the above method further includes: the network device sends indication information to the terminal, wherein the indication information is used to indicate the power of the first information.

[0088] In combination with some embodiments of the second aspect, in some embodiments, the power of the DMRS symbol of the PBCH in the OTFS system includes at least one of the following: the average power on the RE occupied by the DMRS of the PBCH in the OTFS system; the average power on the RE occupied by the DMRS of the PBCH in the OTFS system minus a third value.

[0089] In a third aspect, an embodiment of the present disclosure proposes a method for determining channel measurement information, wherein the terminal determines the power of the reference PDSCH in the OTFS system, and determines the channel measurement information based on the power of the reference PDSCH; the network device determines the power of the reference PDSCH in the OTFS system, wherein the power of the reference PDSCH is used by the terminal to determine the channel measurement information.

[0090] In a fourth aspect, an embodiment of the present disclosure proposes a terminal, which includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute the optional implementation method of the first aspect.

[0091] In a fifth aspect, an embodiment of the present disclosure proposes a network device, which includes at least one of a transceiver module and a processing module; wherein the network device is used to execute the optional implementation method of the second aspect.

[0092] In a sixth aspect, an embodiment of the present disclosure proposes a terminal, which includes: one or more processors; a memory coupled to the processor, the memory storing instructions, which, when executed by the processor, enables the terminal to execute the optional implementation method of the first aspect.

[0093] In the seventh aspect, an embodiment of the present disclosure proposes a network device, which includes: one or more processors; a memory coupled to the processor, on which instructions are stored, and when the instructions are executed by the processor, the network device is used to execute the optional implementation method of the second aspect.

[0094] In the eighth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal and a network device; wherein the terminal is configured to execute the method described in the optional implementation manner of the first aspect, and the network device is configured to execute the method described in the optional implementation manner of the second aspect.

[0095] In a ninth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0096] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0097] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0098] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0099] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0100] The embodiments of the present disclosure provide a method for determining channel measurement information, a terminal, and a network device. In some embodiments, the terms "channel measurement information determining method" and "information processing method" and "communication method" are interchangeable.

[0101] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0102] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0103] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0104] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0105] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0106] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0107] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0108] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0109] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0110] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0111] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0112] In some embodiments, terms such as "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 less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0113] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0114] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0115] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0116] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0117] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0118] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0119] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0120] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0121] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0122] FIG1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure.

[0123] As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0124] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0125] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0126] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (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 base station (Open RAN), a cloud base station (cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0127] In some embodiments, the core network device may be a single device including a first network function, a second network function, etc., or may be a plurality of devices or a group of devices each including all or part of the first network function, the second network function, etc. The network function may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0128] In some embodiments, the first network function is, for example, an access and mobility management function (AMF).

[0129] In some embodiments, the first network function is used for access control and mobility management of the terminal accessing the operator network, for example, including functions such as mobile status management, allocation of user temporary identity, authentication and authorization of users, etc., and its name is not limited to this.

[0130] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0131] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0132] The embodiments of the present disclosure may be applied to long term evolution (LTE), LTE-advanced (LTE-A), LTE-beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), global system for mobile communications (GSM (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), and the like. band, UWB), 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), systems using other communication methods, and next-generation systems based on them. In addition, multiple systems can also be combined (for example, a combination of LTE or LTE-A and 5G) for application.

[0133] In cellular mobile networks, orthogonal frequency division multiplexing (OFDM) has been widely used. By adding a cyclic prefix (CP), the impact of multipath delay can be effectively addressed. However, the performance of the OFDM system will still deteriorate in time-varying channels. For higher wireless frequencies or very high terminal mobility, such as in high-speed rail scenarios, the Doppler shift and Doppler spread of the wireless channel are relatively large, which causes inter-carrier interference (ICI) in the OFDM system. Although the impact of Doppler can be reduced by adopting a larger sub-carrier space (SCS), the length of the CP is also proportionally reduced under the premise of a certain overhead, which means that the CP may not be sufficient to combat the impact of multipath delay.

[0134] Orthogonal time-frequency space (OTFS) was proposed to address the effects of high Doppler ratios. In an OTFS system, as shown in Figure 2, data is first mapped onto a two-dimensional grid in the delay-Doppler (DD) domain. It is then transformed to a two-dimensional grid in the time-frequency (TF) domain using an inverse symplectic finite Fourier transform (ISFFT). The TF domain symbols can then be transmitted using a multicarrier system (Heisenberg transform). For example, OFDM can be used for transmission.

[0135] After the OTFS time-domain signal passes through the time-varying channel h(τ,ν), the receiver first transforms the received signal into the TF domain (Wigner transform) and then performs a symplectic Fourier transform (SFFT) to restore it to the DD domain. Hereinafter, the grid points in the DD and TF domains are collectively referred to as resource elements (REs). In the OTFS system, after the ISFFT transform, the data symbols in each DD domain RE are spread across all TF domain REs, meaning that they experience the same frequency selectivity and time diversity across all TF domain REs. Therefore, all DD domain data symbols can be well approximated as experiencing the same time-invariant channel. This property directly impacts the design of the reference signal for the OTFS system. Ideally, the symbols received by the receiver in the DD domain are equal to the two-dimensional circular convolution of the transmitter's DD domain symbols with the DD domain channel h(τ,ν).

[0136] Thanks to these properties, the OTFS system can treat a time-varying channel as a time-invariant channel in the DD domain, achieving full frequency and time diversity. This makes the OTFS system far superior to OFDM systems in situations with large Doppler frequencies. However, its two-dimensional cyclic convolution in the DD domain also introduces new system design requirements and increases processing complexity.

[0137] In the OTFS system, due to its two-dimensional circular convolution in the DD domain, at the receiver, any DD domain symbol is spread across multiple DD domain REs. Calculating the reference PDSCH power to measure the channel state is an urgent problem that needs to be solved.

[0138] Based on this, embodiments of the present disclosure provide a method, terminal, and network device for determining channel measurement information. The terminal determines the power of a reference PDSCH in an OTFS system and determines channel measurement information based on the power of the reference PDSCH. This allows the terminal to determine the power of the reference PDSCH in the OTFS system and, based on the power of the reference PDSCH, determine channel measurement information, thereby improving the effectiveness of channel measurement.

[0139] FIG3 is an interactive diagram illustrating a method for determining channel measurement information according to an embodiment of the present disclosure. As shown in FIG3 , an embodiment of the present disclosure relates to a method for determining channel measurement information, the method comprising:

[0140] S301: The terminal determines the power of a reference PDSCH in the OTFS system, and determines channel measurement information based on the power of the reference PDSCH.

[0141] In the embodiment of the present disclosure, the terminal may determine the power of a reference PDSCH in the OTFS system, and determine channel measurement information based on the power of the reference PDSCH.

[0142] The terminal determines the power of the reference PDSCH in the OTFS system, which may be determining the receiving power or the transmitting power of the reference PDSCH in the OTFS system.

[0143] It is understandable that the power of the reference PDSCH in the OTFS system is an estimated power, and the terminal needs to measure the channel measurement information based on the power of the reference PDSCH in the OTFS system, and then report the determined channel measurement information to the network device.

[0144] It can be understood that the power of the reference PDSCH in the OTFS system may be the power per resource element (EPRE) on each RE of the reference PDSCH.

[0145] In some embodiments, the type of channel measurement information is channel state information (CSI).

[0146] In some embodiments, the type of channel measurement information is reference signal received power (RSRP).

[0147] In some embodiments, the type of channel measurement information is layer 1 reference signal received power (L1-RSRP).

[0148] In some embodiments, the type of channel measurement information is layer 1 signal to interference plus noise ratio (L1-SINR).

[0149] In some embodiments, the terminal determines the power of the reference PDSCH in the OTFS system, including at least one of the following: determining the power of the data symbols of the reference PDSCH, wherein the power of the reference PDSCH includes the power of the data symbols of the reference PDSCH; determining the power of the DMRS symbols of the reference PDSCH, wherein the power of the reference PDSCH includes the power of the DMRS symbols of the reference PDSCH.

[0150] In the embodiment of the present disclosure, the power of the reference PDSCH includes the power of the data symbols of the reference PDSCH, and the terminal may determine the power of the data symbols of the reference PDSCH.

[0151] In some embodiments, the power of the data symbol referenced by the PDSCH determined by the terminal is the received power or the transmitted power of the data symbol referenced by the PDSCH determined by the terminal.

[0152] In some embodiments, the power of the data symbol of the reference PDSCH may be the EPRE of the data symbol of the reference PDSCH.

[0153] In the embodiment of the present disclosure, the power of the reference PDSCH includes the power of the demodulation reference signal (DMRS) symbol of the reference PDSCH. The terminal may determine the power of the demodulation reference signal DMRS symbol of the reference PDSCH.

[0154] In some embodiments, the power of the DMRS symbol referenced to the PDSCH determined by the terminal is the received power or the transmitted power of the DMRS symbol referenced to the PDSCH determined by the terminal.

[0155] In some embodiments, the power of the DMRS symbol of the reference PDSCH may be the EPRE of the DMRS symbol of the reference PDSCH.

[0156] In some embodiments, the power of the DMRS symbol of the reference PDSCH includes at least one of the following: the average power on the resource elements RE occupied by the DMRS of the reference PDSCH; the average power on the RE occupied by the DMRS of the reference PDSCH minus the first value.

[0157] In the embodiment of the present disclosure, the power of the DMRS symbol of the reference PDSCH may be the average power on the resource elements RE occupied by the DMRS of the reference PDSCH.

[0158] In the embodiment of the present disclosure, the power of the DMRS symbol of the reference PDSCH may be the average power on the REs occupied by the DMRS of the reference PDSCH minus the first value.

[0159] In some embodiments, the terminal determines the first value based on implementation, or determines the first value based on protocol agreement, or determines the first value based on an indication of a network device.

[0160] In some embodiments, the terminal receives first indication information sent by a network device, where the first indication information is used to indicate a first value, and the first indication information is broadcast information or radio resource control (RRC) signaling.

[0161] In some embodiments, the terminal determines the power of the data symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a first offset value; and determining the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and the first offset value.

[0162] In an embodiment of the present disclosure, the terminal may determine the power of a channel state information-reference signal (CSI-RS) in the OTFS system, determine a first offset value, and then determine the power of a data symbol of a reference PDSCH based on the power of the CSI-RS and the first offset value.

[0163] In some embodiments, the terminal determines the power of the CSI-RS in the OTFS system by determining the receiving power or transmitting power of the CSI-RS in the OTFS system by the terminal.

[0164] In some embodiments, the power of the CSI-RS in the OTFS system may be the EPRE of the CSI-RS in the OTFS system. Exemplarily, the terminal determines the power of the data symbol of the reference PDSCH as the power of the CSI-RS in the OTFS system plus the first offset value.

[0165] In some embodiments, the terminal determines the first offset value based on implementation, or determines the first offset value based on a protocol agreement, or determines the first offset value based on an indication of a network device. Exemplarily, the terminal receives second indication information from the network device, where the second indication information is used to indicate the first offset value, wherein the second indication information is broadcast information or RRC signaling.

[0166] In some embodiments, the terminal determines the power of the CSI-RS in the OTFS system, including: determining the power of the first information; determining a power offset value; and determining the power of the CSI-RS according to the power of the first information and the power offset value.

[0167] In the embodiment of the present disclosure, when the terminal determines the power and power offset value of the first information, the power of the CSI-RS can be determined based on the power and power offset value of the first information. Exemplarily, the terminal determines the power of the CSI-RS as the power of the first information plus the power offset value.

[0168] In some embodiments, the power of the first information determined by the terminal is the receiving power or the sending power of the first information determined by the terminal.

[0169] In some embodiments, the terminal determines the power offset value based on implementation, or determines the power offset value based on a protocol agreement, or determines the power offset value based on an indication from a network device. Exemplarily, the terminal receives third indication information sent by the network device, where the third indication information is used to indicate the power offset value, wherein the third indication information is broadcast information or RRC signaling.

[0170] In some embodiments, the power of the first information may be the EPRE for transmitting the first information.

[0171] In some embodiments, the power of the CSI-RS in the OTFS system includes at least one of the following: the average power of REs occupied by the CSI-RS in the OTFS system; the average power of REs occupied by the CSI-RS in the OTFS system minus the second value.

[0172] In some embodiments, the terminal determines the second value based on implementation, or determines the second value based on a protocol agreement, or determines the second value based on an indication of a network device. Exemplarily, the terminal receives fourth indication information sent by the network device, the fourth indication information being used to indicate the second value, wherein the third indication information is broadcast information or RRC signaling.

[0173] In some embodiments, the terminal determines the power of the first information, including at least one of the following: determining the EPRE of the SSS in the OFDM system; determining the EPRE of the SSS in the OTFS system; determining the EPRE of the data symbol of the PBCH in the OTFS system; determining the power of the DMRS symbol of the PBCH in the OTFS system.

[0174] In the embodiment of the present disclosure, the terminal determines the power of the first information by determining the EPRE of a secondary synchronization signal (SSS) in an OFDM system.

[0175] In the embodiment of the present disclosure, the terminal determines the power of the first information by determining the EPRE of the secondary synchronization signal SSS in the OTFS system.

[0176] In the embodiment of the present disclosure, the terminal determines the power of the first information by determining the EPRE of data symbols of a physical broadcast channel (PBCH) in the OTFS system.

[0177] In the embodiment of the present disclosure, the terminal determines the power of the first information, which may be to determine the power of the DMRS symbol of the PBCH in the OTFS system.

[0178] In some embodiments, the terminal determines the power of the first information, including: receiving indication information sent by a network device, where the indication information is used to indicate the power of the first information, and determining the power of the first information according to the indication information.

[0179] In some embodiments, the power of the DMRS symbol of the PBCH in the OTFS system includes at least one of the following: the average power of the REs occupied by the DMRS of the PBCH in the OTFS system; the average power of the REs occupied by the DMRS of the PBCH in the OTFS system minus a third value.

[0180] In the embodiment of the present disclosure, the power of the DMRS symbol of the PBCH in the OTFS system may be the average power on the REs occupied by the DMRS of the PBCH in the OTFS system.

[0181] In the embodiment of the present disclosure, the power of the DMRS symbol of the PBCH in the OTFS system may be the average power on the REs occupied by the DMRS of the PBCH in the OTFS system minus the third value.

[0182] In some embodiments, the terminal determines the third value based on implementation, or determines the third value based on a protocol agreement, or determines the third value based on an indication of a network device. Exemplarily, the terminal receives fifth indication information sent by the network device, where the fifth indication information is used to indicate the third value, wherein the fifth indication information is broadcast information or RRC signaling.

[0183] In some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining a second offset value; and determining the power of the DMRS symbol of the reference PDSCH according to the power of the data symbol of the reference PDSCH and the second offset value.

[0184] In the embodiment of the present disclosure, when determining the power of a data symbol of a reference PDSCH, the terminal may determine a second offset value, and then determine the power of a DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the second offset value. Exemplarily, the terminal determines the power of the DMRS symbol of the reference PDSCH as the power of the data symbol of the reference PDSCH plus the second offset value.

[0185] For example, as shown in Figure 4A, the first offset value is Offset1, and the second offset value is Offset2. After the terminal determines the power of the CSI-RS in the OTFS system, it can determine the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and Offset1, and then determine the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and Offset2.

[0186] In some embodiments, the terminal determines the second offset value based on implementation, or determines the second offset value based on a protocol agreement, or determines the second offset value based on an indication of a network device. Exemplarily, the terminal receives sixth indication information sent by the network device, where the sixth indication information is used to indicate the second offset value, and the sixth indication information is broadcast information or RRC signaling.

[0187] In some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining the third offset value according to the power of the CSI-RS and the third offset value.

[0188] In the disclosed embodiment, the terminal may determine the power of the CSI-RS in the OTFS system, determine a third offset value, and then determine the power of the DMRS symbol referenced to the PDSCH based on the power of the CSI-RS and the third offset value. Exemplarily, the terminal determines the power of the DMRS symbol referenced to the PDSCH as the power of the CSI-RS in the OTFS system plus the third offset value.

[0189] In some embodiments, the terminal determines the third offset value based on implementation, or determines the third offset value based on a protocol agreement, or determines the third offset value based on an indication of a network device. Exemplarily, the terminal receives seventh indication information sent by the network device, where the seventh indication information is used to indicate the third offset value, and the seventh indication information is broadcast information or RRC signaling.

[0190] In some embodiments, the terminal determines the power of the data symbol of the reference PDSCH including: determining a fourth offset value; and determining the power of the data symbol of the reference PDSCH according to the power of the DMRS symbol of the reference PDSCH and the fourth offset value.

[0191] In the embodiment of the present disclosure, when determining the power of the DMRS symbol of the reference PDSCH, the terminal may determine a fourth offset value, and then determine the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and the fourth offset value. Exemplarily, the terminal determines the power of the data symbol of the reference PDSCH as the power of the DMRS symbol of the reference PDSCH plus the fourth offset value.

[0192] For example, as shown in Figure 4B, the third offset value is Offset3, and the fourth offset value is Offset4. After the terminal determines the power of the CSI-RS in the OTFS system, it can determine the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and Offset3, and then determine the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and Offset4.

[0193] In some embodiments, the terminal determines the fourth offset value based on implementation, or determines the fourth offset value based on a protocol agreement, or determines the fourth offset value based on an indication of a network device. Exemplarily, the terminal receives eighth indication information sent by the network device, where the eighth indication information is used to indicate the fourth offset value, and the eighth indication information is broadcast information or RRC signaling.

[0194] In some embodiments, the terminal determines the power of the data symbols of the reference PDSCH and the power of the DMRS symbols of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining the fifth offset value and the sixth offset value; determining the power of the data symbols of the reference PDSCH based on the power of the CSI-RS and the fifth offset value; determining the power of the DMRS symbols of the reference PDSCH based on the power of the CSI-RS and the sixth offset value.

[0195] In the embodiment of the present disclosure, the terminal may determine the power of the CSI-RS in the OTFS system, determine the fifth offset value and the sixth offset value, and then determine the power of the data symbols of the reference PDSCH based on the power of the CSI-RS and the fifth offset value, and determine the power of the DMRS symbols of the reference PDSCH based on the power of the CSI-RS and the sixth offset value. Exemplarily, the terminal determines the power of the data symbols of the reference PDSCH to be the power of the CSI-RS in the OTFS system plus the fifth offset value. Exemplarily, the terminal determines the power of the DMRS symbols of the reference PDSCH to be the power of the CSI-RS in the OTFS system plus the sixth offset value.

[0196] For example, as shown in Figure 4C, the fifth offset value is Offset5, and the sixth offset value is Offset6. After the terminal determines the power of the CSI-RS in the OTFS system, it can determine the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and Offset5, and determine the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and Offset6.

[0197] In some embodiments, the terminal determines the fifth offset value based on implementation, or determines the fifth offset value based on a protocol agreement, or determines the fifth offset value based on an indication of a network device. Exemplarily, the terminal receives ninth indication information sent by the network device, where the ninth indication information is used to indicate the fifth offset value, and the ninth indication information is broadcast information or RRC signaling.

[0198] In some embodiments, the terminal determines the sixth offset value based on implementation, or determines the sixth offset value based on a protocol agreement, or determines the sixth offset value based on an indication of a network device. Exemplarily, the terminal receives tenth indication information sent by the network device, where the tenth indication information is used to indicate the sixth offset value, and the tenth indication information is broadcast information or RRC signaling.

[0199] In some embodiments, the terminal determines the power of the data symbol of the reference PDSCH, including: determining the power of the first information; determining the seventh offset value; and determining the power of the data symbol of the reference PDSCH based on the power of the first information and the seventh offset value.

[0200] In the disclosed embodiment, the terminal may determine the power of the first information and the seventh offset value, and then determine the power of the data symbol of the reference PDSCH based on the power of the first information and the seventh offset value. Exemplarily, the terminal determines the power of the data symbol of the reference PDSCH as the power of the first information plus the seventh offset value.

[0201] In some embodiments, the terminal determines the seventh offset value based on implementation, or determines the seventh offset value based on a protocol agreement, or determines the seventh offset value based on an indication of a network device. Exemplarily, the terminal receives eleventh indication information sent by the network device, the eleventh indication information is used to indicate the seventh offset value, and the eleventh indication information is broadcast information or RRC signaling.

[0202] It should be noted that, for the description related to the terminal determining the power of the first information, reference may be made to the description related to the above embodiment, which will not be repeated here.

[0203] In some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining an eighth offset value; and determining the power of the DMRS symbol of the reference PDSCH according to the power of the data symbol of the reference PDSCH and the eighth offset value.

[0204] In the embodiment of the present disclosure, when determining the power of the data symbol of the reference PDSCH, the terminal may determine the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the eighth offset value. Exemplarily, the terminal determines the power of the DMRS symbol of the reference PDSCH as the power of the data symbol of the reference PDSCH plus the eighth offset value.

[0205] Exemplarily, as shown in Figure 5A, the seventh offset value is Offset7, and the eighth offset value is Offset8. After the terminal determines the power of the first information, it can determine the power of the data symbol of the reference PDSCH based on the power of the first information and Offset7, and then determine the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and Offset8.

[0206] In some embodiments, the terminal determines the eighth offset value based on implementation, or determines the eighth offset value based on a protocol agreement, or determines the eighth offset value based on an indication of a network device. Exemplarily, the terminal receives twelfth indication information sent by the network device, where the twelfth indication information is used to indicate the eighth offset value, and the twelfth indication information is broadcast information or RRC signaling.

[0207] In some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the first information; determining the ninth offset value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the first information and the ninth offset value.

[0208] In the disclosed embodiment, the terminal may determine the power of the first information and the ninth offset value, and then determine the power of the DMRS symbol referenced to the PDSCH based on the power of the first information and the ninth offset value. Exemplarily, the terminal determines the power of the DMRS symbol referenced to the PDSCH as the power of the first information plus the ninth offset value.

[0209] In some embodiments, the terminal determines the ninth offset value based on implementation, or determines the ninth offset value based on a protocol agreement, or determines the ninth offset value based on an indication of a network device. Exemplarily, the terminal receives thirteenth indication information sent by the network device, where the thirteenth indication information is used to indicate the ninth offset value, and the thirteenth indication information is broadcast information or RRC signaling.

[0210] It should be noted that, for the description of how the terminal determines the power of the first information, please refer to the aforementioned related description and will not be repeated here.

[0211] In some embodiments, the terminal determines the power of the data symbol of the reference PDSCH including: determining a tenth offset value; and determining the power of the data symbol of the reference PDSCH according to the power of the DMRS symbol of the reference PDSCH and the tenth offset value.

[0212] In the embodiment of the present disclosure, when determining the power of the DMRS symbol of the reference PDSCH, the terminal may determine the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and the tenth offset value. Exemplarily, the terminal determines the power of the data symbol of the reference PDSCH as the power of the DMRS symbol of the reference PDSCH plus the tenth offset value.

[0213] For example, as shown in Figure 5B, the ninth offset value is Offset9 and the tenth offset value is Offset10. After the terminal determines the power of the first information, it can determine the power of the DMRS symbol of the reference PDSCH based on the power of the first information and Offset9, and then determine the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and Offset10.

[0214] In some embodiments, the terminal determines the tenth offset value based on implementation, or determines the tenth offset value based on a protocol agreement, or determines the tenth offset value based on an indication of a network device. Exemplarily, the terminal receives fourteenth indication information sent by the network device, where the fourteenth indication information is used to indicate the tenth offset value, and the fourteenth indication information is broadcast information or RRC signaling.

[0215] In some embodiments, the terminal determines the power of the data symbols of the reference PDSCH and the power of the DMRS symbols of the reference PDSCH, including: determining the power of the first information; determining the eleventh offset value and the twelfth offset value; determining the power of the data symbols of the reference PDSCH based on the power of the first information and the eleventh offset value; determining the power of the DMRS of the reference PDSCH based on the power of the first information and the twelfth offset value.

[0216] In an embodiment of the present disclosure, a terminal may determine the power of the first information, determine the eleventh offset value and the twelfth offset value, and then determine the power of the data symbols of the reference PDSCH based on the power of the first information and the eleventh offset value, and determine the power of the DMRS symbols of the reference PDSCH based on the power of the first information and the twelfth offset value. Exemplarily, the terminal determines the power of the data symbols of the reference PDSCH as the power of the first information plus the eleventh offset value. Exemplarily, the terminal determines the power of the DMRS symbols of the reference PDSCH as the power of the first information plus the twelfth offset value.

[0217] For example, as shown in Figure 5C, the eleventh offset value is Offset11, and the twelfth offset value is Offset12. After the terminal determines the power of the first information, it can determine the power of the data symbol of the reference PDSCH based on the power of the first information and Offset11, and determine the power of the DMRS symbol of the reference PDSCH based on the power of the first information and Offset12.

[0218] It should be noted that, for the description of how the terminal determines the power of the first information, please refer to the aforementioned related description and will not be repeated here.

[0219] In some embodiments, the terminal determines the eleventh offset value based on implementation, or determines the eleventh offset value based on a protocol agreement, or determines the eleventh offset value based on an indication from a network device. Exemplarily, the terminal receives fifteenth indication information sent by the network device, where the fifteenth indication information is used to indicate the eleventh offset value, and the fifteenth indication information is broadcast information or RRC signaling.

[0220] In some embodiments, the terminal determines the twelfth offset value based on implementation, or determines the twelfth offset value based on a protocol agreement, or determines the twelfth offset value based on an indication of a network device. Exemplarily, the terminal receives sixteenth indication information sent by the network device, where the sixteenth indication information is used to indicate the twelfth offset value, and the sixteenth indication information is broadcast information or RRC signaling.

[0221] In some embodiments, the terminal determines the power of the data symbol of the reference PDSCH, including: determining the power of the data symbol of the PDSCH; determining a first parameter value; and determining the power of the data symbol of the reference PDSCH based on the power of the data symbol of the PDSCH and the first parameter value.

[0222] In an embodiment of the present disclosure, a terminal may determine the power of a data symbol of a PDSCH and a first parameter value, and then determine the power of a data symbol of a reference PDSCH based on the power of the data symbol of the PDSCH and the first parameter value. Exemplarily, the terminal determines the power of the data symbol of the reference PDSCH as the power of the data symbol of the PDSCH plus the first parameter value.

[0223] In some embodiments, the power of the data symbols of the PDSCH determined by the terminal is the reception power or transmission power of the data symbols of the PDSCH determined by the terminal.

[0224] In some embodiments, the terminal determines the first parameter value based on implementation, or determines the first parameter value based on a protocol agreement, or determines the first parameter value based on an indication of a network device. Exemplarily, the terminal receives seventeenth indication information sent by the network device, where the seventeenth indication information is used to indicate the first parameter value, and the seventeenth indication information is broadcast information or RRC signaling.

[0225] It can be understood that the terminal receives the data symbols of the PDSCH sent by the network device and determines the power of the data symbols of the PDSCH.

[0226] In some embodiments, the terminal determines the power of the data symbols of the PDSCH, which may be the EPRE of the data symbols of the PDSCH of the terminal.

[0227] In some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining a second parameter value; and determining the power of the DMRS symbol of the reference PDSCH according to the power of the data symbol of the reference PDSCH and the second parameter value.

[0228] In the embodiment of the present disclosure, when determining the power of the data symbol of the reference PDSCH, the terminal may determine the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the second parameter value. Exemplarily, the terminal determines the power of the DMRS symbol of the reference PDSCH as the power of the data symbol of the reference PDSCH plus the second parameter value.

[0229] Exemplarily, as shown in Figure 6A, the first parameter value is powerOffset1, and the second parameter value is powerOffset2. After the terminal determines the power of the data symbol of the PDSCH, it can determine the power of the data symbol of the reference PDSCH based on the power of the data symbol of the PDSCH and powerOffset1, and then determine the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and powerOffset2.

[0230] In some embodiments, the terminal determines the second parameter value based on implementation, or determines the second parameter value based on a protocol agreement, or determines the second parameter value based on an indication of a network device. Exemplarily, the terminal receives eighteenth indication information sent by the network device, where the eighteenth indication information is used to indicate the second parameter value, and the eighteenth indication information is broadcast information or RRC signaling.

[0231] In some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the DMRS symbol of the PDSCH; determining a third parameter value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS of the PDSCH and the third parameter value.

[0232] In the disclosed embodiment, the terminal may determine the power of the DMRS symbol of the PDSCH and the third parameter value, and then determine the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS symbol of the PDSCH and the third parameter value. Exemplarily, the terminal determines the power of the DMRS symbol of the reference PDSCH as the power of the DMRS symbol of the PDSCH plus the third parameter value.

[0233] In some embodiments, the terminal determines the power of the DMRS symbol of the PDSCH by the terminal, which is the received power or the transmitted power of the DMRS symbol of the PDSCH determined by the terminal.

[0234] It can be understood that the terminal receives the DMRS symbol of the PDSCH sent by the network device and can determine the power of the DMRS symbol of the PDSCH.

[0235] In some embodiments, the terminal determines the power of the DMRS symbol of the PDSCH, which may be the EPRE of the DMRS symbol of the PDSCH of the terminal.

[0236] In some embodiments, the terminal determines the third parameter value based on implementation, or determines the third parameter value based on a protocol agreement, or determines the third parameter value based on an indication of a network device. Exemplarily, the terminal receives nineteenth indication information sent by the network device, where the nineteenth indication information is used to indicate the third parameter value, and the nineteenth indication information is broadcast information or RRC signaling.

[0237] In some embodiments, the terminal determines the power of the data symbol of the reference PDSCH, including: determining a fourth parameter value; and determining the power of the data symbol of the reference PDSCH according to the power of the DMRS of the reference PDSCH and the fourth parameter value.

[0238] In the embodiment of the present disclosure, when determining the power of the DMRS symbol of the reference PDSCH, the terminal may determine the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and the fourth parameter value. Exemplarily, the terminal determines the power of the data symbol of the reference PDSCH as the power of the DMRS symbol of the reference PDSCH plus the fourth parameter value.

[0239] For example, as shown in Figure 6B, the third parameter value is powerOffset3, and the fourth parameter value is powerOffset4. After the terminal determines the power of the DMRS symbol of the PDSCH, it can determine the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS symbol of the PDSCH and powerOffset3, and then determine the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and powerOffset4.

[0240] In some embodiments, the terminal determines the fourth parameter value based on implementation, or determines the fourth parameter value based on a protocol agreement, or determines the fourth parameter value based on an indication of a network device. Exemplarily, the terminal receives twentieth indication information sent by the network device, where the twentieth indication information is used to indicate the fourth parameter value, and the twentieth indication information is broadcast information or RRC signaling.

[0241] In some embodiments, the terminal determines the power of the DMRS symbol of the reference PDSCH and the power of the data symbol of the reference PDSCH, including: determining the power of the data symbol of the PDSCH, and the power of the DMRS of the PDSCH; determining the fifth parameter value and the sixth parameter value; determining the power of the data symbol of the reference PDSCH based on the power of the data symbol of the PDSCH and the fifth parameter value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS of the PDSCH and the sixth parameter value.

[0242] In the disclosed embodiment, the terminal may determine the power of the data symbols of the PDSCH, the power of the DMRS of the PDSCH, and the fifth parameter value and the sixth parameter value, and then determine the power of the data symbols of the reference PDSCH based on the power of the data symbols of the PDSCH and the fifth parameter value, and determine the power of the DMRS symbols of the reference PDSCH based on the power of the DMRS of the PDSCH and the sixth parameter value. Exemplarily, the terminal determines the power of the data symbols of the reference PDSCH as the power of the data symbols of the PDSCH plus the fifth parameter value. Exemplarily, the terminal determines the power of the DMRS symbols of the reference PDSCH as the power of the DMRS of the PDSCH plus the sixth parameter value.

[0243] For example, as shown in Figure 6C, the fifth parameter value is powerOffset5, and the sixth parameter value is powerOffset6. After the terminal determines the power of the data symbol of PDSCH and the power of the DMRS symbol of PDSCH, it can determine the power of the data symbol of the reference PDSCH based on the power of the data symbol of PDSCH and powerOffset5, and determine the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS symbol of PDSCH and powerOffset6.

[0244] In some embodiments, the terminal determines the fifth parameter value based on implementation, or determines the fifth parameter value based on a protocol agreement, or determines the fifth parameter value based on an indication of a network device. Exemplarily, the terminal receives twenty-first indication information sent by the network device, where the twenty-first indication information is used to indicate the fifth parameter value, and the twenty-first indication information is broadcast information or RRC signaling.

[0245] In some embodiments, the terminal determines the sixth parameter value based on implementation, or determines the sixth parameter value based on a protocol agreement, or determines the sixth parameter value based on an indication of a network device. Exemplarily, the terminal receives twenty-second indication information sent by the network device, where the twenty-second indication information is used to indicate the sixth parameter value, and the twenty-second indication information is broadcast information or RRC signaling.

[0246] In the embodiment of the present disclosure, after determining the power of the reference PDSCH in the OTFS system, the terminal may determine channel measurement information based on the power of the reference PDSCH, thereby improving the effectiveness of the channel measurement information measurement.

[0247] S302: The network device determines the power of the reference PDSCH in the OTFS system.

[0248] In an embodiment of the present disclosure, a network device can determine the power of a reference PDSCH in an OTFS system. The power of the reference PDSCH is used by a terminal to determine channel measurement information. When the network device receives the channel measurement information sent by the terminal, it can determine the actual channel state based on the power of the reference PDSCH, so as to accurately schedule downlink data transmission based on the actual channel state, thereby improving the performance of downlink data transmission.

[0249] The network device determines the power of the reference PDSCH in the OTFS system, which may be determining the receiving power or the transmitting power of the reference PDSCH in the OTFS system.

[0250] It can be understood that the power of the reference PDSCH in the OTFS system may be the EPRE of the reference PDSCH.

[0251] In some embodiments, the network device determines the power of the reference PDSCH in the OTFS system, including at least one of the following: determining the power of the data symbols of the reference PDSCH, wherein the power of the reference PDSCH includes the power of the data symbols of the reference PDSCH; determining the power of the DMRS symbols of the reference PDSCH, wherein the power of the reference PDSCH includes the power of the DMRS symbols of the reference PDSCH.

[0252] In the embodiment of the present disclosure, the power of the reference PDSCH includes the power of the data symbols of the reference PDSCH, and the network device may determine the power of the data symbols of the reference PDSCH.

[0253] In some embodiments, the network device determines the power of the data symbol with reference to the PDSCH so that the terminal can determine the reception power or transmission power of the data symbol with reference to the PDSCH.

[0254] In some embodiments, the power of the data symbols of the reference PDSCH may be the EPRE of the data symbols of the reference PDSCH.

[0255] In the embodiment of the present disclosure, the power of the reference PDSCH includes the power of the reference PDSCH DMRS symbol, and the network device may determine the power of the reference PDSCH DMRS symbol.

[0256] In some embodiments, the network device determines the power of the DMRS symbol with reference to the PDSCH for the terminal to determine the receive power or transmit power of the DMRS symbol with reference to the PDSCH.

[0257] In some embodiments, the power of the DMRS symbol of the reference PDSCH may be the EPRE of the DMRS symbol of the reference PDSCH.

[0258] In some embodiments, the power of the DMRS symbol of the reference PDSCH includes at least one of the following: the average power on the resource elements RE occupied by the DMRS of the reference PDSCH; the average power on the RE occupied by the DMRS of the reference PDSCH minus the first value.

[0259] In the embodiment of the present disclosure, the power of the DMRS symbol of the reference PDSCH may be the average power on the resource elements RE occupied by the DMRS of the reference PDSCH.

[0260] In the embodiment of the present disclosure, the power of the DMRS symbol of the reference PDSCH may be the average power on the REs occupied by the DMRS of the reference PDSCH minus the first value.

[0261] In some embodiments, when the network device determines the first value, the network device sends indication information to the terminal to indicate the first value. Exemplarily, the network device sends the first indication information to the terminal, the first indication information is used to indicate the first value, and the first indication information is broadcast information or RRC signaling.

[0262] In some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a first offset value; and determining the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and the first offset value.

[0263] In the embodiment of the present disclosure, the network device may determine the power of the CSI-RS in the OTFS system, determine a first offset value, and then determine the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and the first offset value.

[0264] In some embodiments, the network device determines the power of the CSI-RS in the OTFS system to determine the receiving power or transmitting power of the CSI-RS in the OTFS system for the terminal.

[0265] In some embodiments, the power of the CSI-RS in the OTFS system may be the EPRE of the CSI-RS in the OTFS system. Exemplarily, the network device determines the power of the data symbol of the reference PDSCH as the power of the CSI-RS in the OTFS system plus the first offset value.

[0266] In some embodiments, when the network device determines the first offset value, it sends indication information to the terminal to indicate the first offset value. Exemplarily, the network device sends second indication information to the terminal, the second indication information is used to indicate the first offset value, and the second indication information is broadcast information or RRC signaling.

[0267] In some embodiments, the network device determines the power of the CSI-RS in the OTFS system, including: determining the power of the first information; determining a power offset value; and determining the power of the CSI-RS according to the power of the first information and the power offset value.

[0268] In the embodiment of the present disclosure, when the network device determines the power and power offset value of the first information, the power of the CSI-RS can be determined based on the power and power offset value of the first information. Exemplarily, the network device determines the power of the CSI-RS as the power of the first information plus the power offset value.

[0269] In some embodiments, the network device determines the power of the first information as the terminal determines the receiving power or the transmitting power of the first information.

[0270] In some embodiments, when the network device determines the power offset value, it sends indication information to the terminal to indicate the power offset value. Exemplarily, the network device sends third indication information to the terminal, where the third indication information is used to indicate the power offset value, and the third indication information is broadcast information or RRC signaling.

[0271] In some embodiments, the power of the first information may be the EPRE for transmitting the first information.

[0272] In some embodiments, the power of the CSI-RS in the OTFS system includes at least one of the following: the average power of REs occupied by the CSI-RS in the OTFS system; the average power of REs occupied by the CSI-RS in the OTFS system minus the second value.

[0273] In some embodiments, when the network device determines the second value, it sends indication information to the terminal to indicate the second value. Exemplarily, the network device sends fourth indication information to the terminal, the fourth indication information is used to indicate the second value, and the fourth indication information is broadcast information or RRC signaling.

[0274] In some embodiments, the network device determines the power of the first information, including at least one of the following: determining the EPRE of the SSS in the OFDM system; determining the EPRE of the SSS in the OTFS system; determining the EPRE of the data symbols of the PBCH in the OTFS system; determining the power of the DMRS symbols of the PBCH in the OTFS system.

[0275] In this embodiment of the present disclosure, the network device determines the power of the first information to determine the EPRE of the SSS in an OFDM system. In this embodiment of the present disclosure, the network device determines the power of the first information to determine the EPRE of the secondary synchronization signal (SSS) in an OTFS system. In this embodiment of the present disclosure, the network device determines the power of the first information to determine the EPRE of data symbols of the PBCH in the OTFS system. In this embodiment of the present disclosure, the network device determines the power of the first information to determine the power of DMRS symbols of the PBCH in the OTFS system.

[0276] In some embodiments, the network device sends indication information to the terminal, where the indication information is used to indicate the power of the first information.

[0277] In some embodiments, the power of the DMRS symbol of the PBCH in the OTFS system includes at least one of the following: the average power of the REs occupied by the DMRS of the PBCH in the OTFS system; the average power of the REs occupied by the DMRS of the PBCH in the OTFS system minus a third value.

[0278] In the embodiment of the present disclosure, the power of the DMRS symbol of the PBCH in the OTFS system may be the average power of the REs occupied by the DMRS of the PBCH in the OTFS system. In the embodiment of the present disclosure, the power of the DMRS symbol of the PBCH in the OTFS system may be the average power of the REs occupied by the DMRS of the PBCH in the OTFS system minus the third value.

[0279] In some embodiments, when the network device determines the third value, it sends indication information to the terminal to indicate the third value. Exemplarily, the network device sends fifth indication information to the terminal, where the fifth indication information is used to indicate the third value, and the fifth indication information is broadcast information or RRC signaling.

[0280] In some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining a second offset value; and determining the power of the DMRS symbol of the reference PDSCH according to the power of the data symbol of the reference PDSCH and the second offset value.

[0281] In the embodiment of the present disclosure, when determining the power of a data symbol of a reference PDSCH, the network device may determine a second offset value, and then determine the power of a DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the second offset value. Exemplarily, the network device determines the power of the DMRS symbol of the reference PDSCH as the power of the data symbol of the reference PDSCH plus the second offset value.

[0282] Exemplarily, as shown in FIG4A , the first offset value is Offset1, and the second offset value is Offset2. After the network device determines the power of the CSI-RS in the OTFS system, it can determine the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and Offset1, and then determine the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and Offset2. In some embodiments, when the network device determines the second offset value, it sends indication information to the terminal to indicate the second offset value. Exemplarily, the network device sends sixth indication information to the terminal, and the sixth indication information is used to indicate the second offset value. The sixth indication information is broadcast information or RRC signaling.

[0283] In some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining a third offset value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and the third offset value.

[0284] In the disclosed embodiments, the network device may determine the power of the CSI-RS in the OTFS system, determine a third offset value, and then determine the power of the DMRS symbol referenced to the PDSCH based on the power of the CSI-RS and the third offset value. Exemplarily, the network device determines the power of the DMRS symbol referenced to the PDSCH as the power of the CSI-RS in the OTFS system plus the third offset value.

[0285] In some embodiments, when the network device determines the third offset value, it sends indication information to the terminal to indicate the third offset value. Exemplarily, the network device sends seventh indication information to the terminal, where the seventh indication information is used to indicate the third offset value, and the seventh indication information is broadcast information or RRC signaling.

[0286] In some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining a fourth offset value; and determining the power of the data symbol of the reference PDSCH according to the power of the DMRS symbol of the reference PDSCH and the fourth offset value.

[0287] In an embodiment of the present disclosure, when determining the power of a DMRS symbol of a reference PDSCH, the network device may determine a fourth offset value, and then determine the power of a data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and the fourth offset value. Exemplarily, the network device determines the power of the data symbol of the reference PDSCH as the power of the DMRS symbol of the reference PDSCH plus the fourth offset value.

[0288] For example, as shown in Figure 4B, the third offset value is Offset3, and the fourth offset value is Offset4. After the network device determines the power of the CSI-RS in the OTFS system, it can determine the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and Offset3, and then determine the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and Offset4.

[0289] In some embodiments, when the network device determines the fourth offset value, it sends indication information to the terminal to indicate the fourth offset value. Exemplarily, the network device sends eighth indication information to the terminal, where the eighth indication information is used to indicate the fourth offset value, and the eighth indication information is broadcast information or RRC signaling.

[0290] In some embodiments, the network device determines the power of the data symbols of the reference PDSCH and the power of the DMRS symbols of the reference PDSCH, including: determining the power of the CSI-RS in the OTFS system; determining the fifth offset value and the sixth offset value; determining the power of the data symbols of the reference PDSCH based on the power of the CSI-RS and the fifth offset value; determining the power of the DMRS symbols of the reference PDSCH based on the power of the CSI-RS and the sixth offset value.

[0291] In an embodiment of the present disclosure, a network device may determine the power of the CSI-RS in the OTFS system, determine a fifth offset value and a sixth offset value, and then determine the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and the fifth offset value, and determine the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and the sixth offset value. Exemplarily, the network device determines the power of the data symbol of the reference PDSCH to be the power of the CSI-RS in the OTFS system plus the fifth offset value. Exemplarily, the network device determines the power of the DMRS symbol of the reference PDSCH to be the power of the CSI-RS in the OTFS system plus the sixth offset value.

[0292] For example, as shown in FIG4C , the fifth offset value is Offset5, and the sixth offset value is Offset6. After the network device determines the power of the CSI-RS in the OTFS system, it can determine the power of the data symbol of the reference PDSCH based on the power of the CSI-RS and Offset5, and determine the power of the DMRS symbol of the reference PDSCH based on the power of the CSI-RS and Offset6.

[0293] In some embodiments, when the network device determines the fifth offset value, it sends indication information to the terminal to indicate the fifth offset value. Exemplarily, the network device sends ninth indication information to the terminal, where the ninth indication information is used to indicate the fifth offset value, and the ninth indication information is broadcast information or RRC signaling.

[0294] In some embodiments, when the network device determines the sixth offset value, it sends indication information to the terminal to indicate the sixth offset value. Exemplarily, the network device sends tenth indication information to the terminal, the tenth indication information is used to indicate the sixth offset value, and the tenth indication information is broadcast information or RRC signaling.

[0295] In some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining the power of the first information; determining the seventh offset value; and determining the power of the data symbol of the reference PDSCH based on the power of the first information and the seventh offset value.

[0296] In the disclosed embodiment, the network device may determine the power of the first information and the seventh offset value, and then determine the power of the data symbol of the reference PDSCH based on the power of the first information and the seventh offset value. Exemplarily, the power of the data symbol of the reference PDSCH by the network device is the power of the first information plus the seventh offset value.

[0297] In some embodiments, when the network device determines the seventh offset value, it sends indication information to the terminal to indicate the seventh offset value. Exemplarily, the network device sends eleventh indication information to the terminal, the eleventh indication information is used to indicate the seventh offset value, and the eleventh indication information is broadcast information or RRC signaling.

[0298] It should be noted that, for the relevant description of how the network device determines the power of the first information, reference can be made to the relevant description in the above embodiment, which will not be repeated here.

[0299] In some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining an eighth offset value; and determining the power of the DMRS symbol of the reference PDSCH according to the power of the data symbol of the reference PDSCH and the eighth offset value.

[0300] In the embodiment of the present disclosure, when determining the power of a data symbol of a reference PDSCH, the network device may determine the power of a DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and an eighth offset value. Exemplarily, the network device determines the power of the DMRS symbol of the reference PDSCH as the power of the data symbol of the reference PDSCH plus the eighth offset value.

[0301] For example, as shown in Figure 5A, the seventh offset value is Offset7, and the eighth offset value is Offset8. After the network device determines the power of the first information, it can determine the power of the data symbol of the reference PDSCH based on the power of the first information and Offset7, and then determine the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and Offset8.

[0302] In some embodiments, when the network device determines the eighth offset value, it sends indication information to the terminal to indicate the eighth offset value. Exemplarily, the network device sends twelfth indication information to the terminal, the twelfth indication information is used to indicate the eighth offset value, and the twelfth indication information is broadcast information or RRC signaling.

[0303] In some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the first information; determining a ninth offset value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the first information and the ninth offset value.

[0304] In the disclosed embodiment, the network device may determine the power of the first information and the ninth offset value, and then determine the power of the DMRS symbol referenced to the PDSCH based on the power of the first information and the ninth offset value. Exemplarily, the network device determines the power of the DMRS symbol referenced to the PDSCH as the power of the first information plus the ninth offset value.

[0305] In some embodiments, when the network device determines the ninth offset value, it sends indication information to the terminal to indicate the ninth offset value. Exemplarily, the network device sends thirteenth indication information to the terminal, the thirteenth indication information is used to indicate the ninth offset value, and the thirteenth indication information is broadcast information or RRC signaling.

[0306] It should be noted that, for the description of how the network device determines the power of the first information, reference can be made to the relevant description of the aforementioned embodiment, which will not be repeated here.

[0307] In some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining a tenth offset value; and determining the power of the data symbol of the reference PDSCH according to the power of the DMRS symbol of the reference PDSCH and the tenth offset value.

[0308] In the embodiment of the present disclosure, when determining the power of the DMRS symbol of the reference PDSCH, the network device may determine the power of the data symbol of the reference PDSCH according to the power of the DMRS symbol of the reference PDSCH and the tenth offset value.

[0309] Exemplarily, the network device determines the power of the data symbol of the reference PDSCH as the power of the DMRS symbol of the reference PDSCH plus the tenth offset value.

[0310] For example, as shown in Figure 5B, the ninth offset value is Offset9 and the tenth offset value is Offset10. After the network device determines the power of the first information, it can determine the power of the DMRS symbol of the reference PDSCH based on the power of the first information and Offset9, and then determine the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and Offset10.

[0311] In some embodiments, when the network device determines the tenth offset value, it sends indication information to the terminal to indicate the tenth offset value. Exemplarily, the network device sends fourteenth indication information to the terminal, the fourteenth indication information is used to indicate the tenth offset value, and the fourteenth indication information is broadcast information or RRC signaling.

[0312] In some embodiments, the network device determines the power of the data symbols of the reference PDSCH and the power of the DMRS symbols of the reference PDSCH, including: determining the power of the first information; determining the eleventh offset value and the twelfth offset value; determining the power of the data symbols of the reference PDSCH based on the power of the first information and the eleventh offset value; determining the power of the DMRS of the reference PDSCH based on the power of the first information and the twelfth offset value.

[0313] In an embodiment of the present disclosure, a network device may determine the power of the first information, determine the eleventh offset value and the twelfth offset value, and then determine the power of the data symbols of the reference PDSCH based on the power of the first information and the eleventh offset value, and determine the power of the DMRS symbols of the reference PDSCH based on the power of the first information and the twelfth offset value. Exemplarily, the network device determines the power of the data symbols of the reference PDSCH as the power of the first information plus the eleventh offset value. Exemplarily, the network device determines the power of the DMRS symbols of the reference PDSCH as the power of the first information plus the twelfth offset value.

[0314] Exemplarily, as shown in Figure 5C, the eleventh offset value is Offset11, and the twelfth offset value is Offset12. After the network device determines the power of the first information, it can determine the power of the data symbol of the reference PDSCH based on the power of the first information and Offset11, and determine the power of the DMRS symbol of the reference PDSCH based on the power of the first information and Offset12.

[0315] It should be noted that, for the description of how the network device determines the power of the first information, reference can be made to the relevant description of the aforementioned embodiment, which will not be repeated here.

[0316] In some embodiments, when the network device determines the eleventh offset value, it sends indication information to the terminal to indicate the eleventh offset value. Exemplarily, the network device sends fifteenth indication information to the terminal, the fifteenth indication information is used to indicate the eleventh offset value, and the fifteenth indication information is broadcast information or RRC signaling.

[0317] In some embodiments, when the network device determines the twelfth offset value, the network device sends indication information to the terminal to indicate the twelfth offset value. Exemplarily, the network device sends sixteenth indication information to the terminal, the sixteenth indication information is used to indicate the twelfth offset value, and the sixteenth indication information is broadcast information or RRC signaling.

[0318] In some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining the power of the data symbol of the PDSCH; determining a first parameter value; and determining the power of the data symbol of the reference PDSCH based on the power of the data symbol of the PDSCH and the first parameter value.

[0319] In an embodiment of the present disclosure, a network device may determine the power of a data symbol of a PDSCH and a first parameter value, and then determine the power of a data symbol of a reference PDSCH based on the power of the data symbol of the PDSCH and the first parameter value. Exemplarily, the network device determines the power of the data symbol of the reference PDSCH as the power of the data symbol of the PDSCH plus the first parameter value.

[0320] In some embodiments, the network device determines the power of the data symbols of the PDSCH for the terminal to determine the receiving power or transmitting power of the data symbols of the PDSCH.

[0321] In some embodiments, when the network device determines the first parameter value, it sends indication information to the terminal to indicate the first parameter value. Exemplarily, the network device sends seventeenth indication information to the terminal, the seventeenth indication information is used to indicate the first parameter value, and the seventeenth indication information is broadcast information or RRC signaling.

[0322] It is understandable that the network device sends the data symbols of the PDSCH to the terminal and can determine the power of the data symbols of the PDSCH.

[0323] In some embodiments, the power of the data symbols of the PDSCH sent by the network device to the terminal may be the EPRE of the data symbols of the PDSCH sent to the terminal.

[0324] In some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining a second parameter value; and determining the power of the DMRS symbol of the reference PDSCH according to the power of the data symbol of the reference PDSCH and the second parameter value.

[0325] In the embodiment of the present disclosure, when determining the power of the data symbol of the reference PDSCH, the network device may determine the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and the second parameter value. Exemplarily, the network device determines the power of the DMRS symbol of the reference PDSCH as the power of the data symbol of the reference PDSCH plus the second parameter value.

[0326] Exemplarily, as shown in Figure 6A, the first parameter value is powerOffset1, and the second parameter value is powerOffset2. After the network device determines the power of the data symbol of the PDSCH, it can determine the power of the data symbol of the reference PDSCH based on the power of the data symbol of the PDSCH and powerOffset1, and then determine the power of the DMRS symbol of the reference PDSCH based on the power of the data symbol of the reference PDSCH and powerOffset2.

[0327] In some embodiments, when the network device determines the second parameter value, it sends indication information to the terminal to indicate the second parameter value. Exemplarily, the network device sends eighteenth indication information to the terminal, the eighteenth indication information is used to indicate the second parameter value, and the eighteenth indication information is broadcast information or RRC signaling.

[0328] In some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH, including: determining the power of the DMRS symbol of the PDSCH; determining a third parameter value; and determining the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS of the PDSCH and the third parameter value.

[0329] In the disclosed embodiment, the network device may determine the power of the DMRS symbol of the PDSCH and a third parameter value, and then determine the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS symbol of the PDSCH and the third parameter value. Exemplarily, the network device determines the power of the DMRS symbol of the reference PDSCH as the power of the DMRS symbol of the PDSCH plus the third parameter value.

[0330] In some embodiments, the network device determines the power of the DMRS symbol of the PDSCH for the terminal to determine the receive power or transmit power of the DMRS symbol of the PDSCH.

[0331] It is understandable that the network device sends the DMRS symbol of the PDSCH to the terminal and can determine the power of the DMRS symbol of the PDSCH.

[0332] In some embodiments, the network device determines the power of the DMRS symbol of the PDSCH, which may be the EPRE of the DMRS symbol of the PDSCH sent to the terminal.

[0333] In some embodiments, when the network device determines the third parameter value, it sends indication information to the terminal to indicate the third parameter value. Exemplarily, the network device sends nineteenth indication information to the terminal, the nineteenth indication information is used to indicate the third parameter value, and the nineteenth indication information is broadcast information or RRC signaling.

[0334] In some embodiments, the network device determines the power of the data symbol of the reference PDSCH, including: determining a fourth parameter value; and determining the power of the data symbol of the reference PDSCH according to the power of the DMRS of the reference PDSCH and the fourth parameter value.

[0335] In the embodiment of the present disclosure, when determining the power of the DMRS symbol of the reference PDSCH, the network device may determine the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and the fourth parameter value. Exemplarily, the network device determines the power of the data symbol of the reference PDSCH as the power of the DMRS symbol of the reference PDSCH plus the fourth parameter value.

[0336] For example, as shown in Figure 6B, the third parameter value is powerOffset3, and the fourth parameter value is powerOffset4. After the network device determines the power of the DMRS symbol of the PDSCH, it can determine the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS symbol of the PDSCH and powerOffset3, and then determine the power of the data symbol of the reference PDSCH based on the power of the DMRS symbol of the reference PDSCH and powerOffset4.

[0337] In some embodiments, when the network device determines the fourth parameter value, it sends indication information to the terminal to indicate the fourth parameter value. Exemplarily, the network device sends twentieth indication information to the terminal, where the twentieth indication information is used to indicate the fourth parameter value, and the twentieth indication information is broadcast information or RRC signaling.

[0338] In some embodiments, the network device determines the power of the DMRS symbol of the reference PDSCH and the power of the data symbol of the reference PDSCH, including: determining the power of the data symbol of the PDSCH, and the power of the DMRS of the PDSCH; determining a fifth parameter value and a sixth parameter value; determining the power of the data symbol of the reference PDSCH based on the power of the data symbol of the PDSCH and the fifth parameter value; determining the power of the DMRS symbol of the reference PDSCH based on the power of the DMRS of the PDSCH and the sixth parameter value.

[0339] In the embodiment of the present disclosure, the network device can determine the power of the data symbols of the PDSCH, the power of the DMRS of the PDSCH, and the fifth parameter value and the sixth parameter value, and then can determine the power of the data symbols of the reference PDSCH based on the power of the data symbols of the PDSCH and the fifth parameter value, and determine the power of the DMRS symbols of the reference PDSCH based on the power of the DMRS of the PDSCH and the sixth parameter value.

[0340] Exemplarily, the network device determines the power of the data symbol of the reference PDSCH as the power of the data symbol of the PDSCH plus the fifth parameter value. Exemplarily, the network device determines the power of the DMRS symbol of the reference PDSCH as the power of the DMRS of the PDSCH plus the sixth parameter value.

[0341] For example, as shown in Figure 6C, the fifth parameter value is powerOffset5, and the sixth parameter value is powerOffset6. After the network device determines the power of the data symbols of the PDSCH and the power of the DMRS symbols of the PDSCH, it can determine the power of the data symbols of the reference PDSCH based on the power of the data symbols of the PDSCH and powerOffset5, and determine the power of the DMRS symbols of the reference PDSCH based on the power of the DMRS symbols of the PDSCH and powerOffset6.

[0342] In some embodiments, when the network device determines the fifth parameter value, it sends indication information to the terminal to indicate the fifth parameter value. Exemplarily, the network device sends twenty-first indication information to the terminal, the twenty-first indication information is used to indicate the fifth parameter value, and the twenty-first indication information is broadcast information or RRC signaling.

[0343] In some embodiments, when the network device determines the sixth parameter value, it sends indication information to the terminal to indicate the sixth parameter value. Exemplarily, the network device sends twenty-second indication information to the terminal, the twenty-second indication information is used to indicate the sixth parameter value, and the twenty-second indication information is broadcast information or RRC signaling.

[0344] S303: The terminal sends channel measurement information to the network device.

[0345] In the embodiment of the present disclosure, the terminal determines the power of the reference PDSCH in the OTFS system, and after determining channel measurement information based on the power of the reference PDSCH, the terminal may send the determined channel measurement information to the network device.

[0346] In the embodiment of the present disclosure, the network device receives channel measurement information sent by the terminal.

[0347] In some embodiments, the network device determines the power of the reference PDSCH in the OTFS system and the channel measurement information sent by the receiving terminal, and can determine the actual channel state based on the power of the reference PDSCH to accurately schedule downlink data transmission based on the actual channel state, thereby improving the performance of downlink data transmission.

[0348] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0349] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0350] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, and terms such as "physical uplink shared channel (PUSCH)" and "UL data" can be used interchangeably.

[0351] In some embodiments, terms such as "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", and "pilot signal" can be used interchangeably.

[0352] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0353] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0354] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0355] The communication method involved in the embodiments of the present disclosure may include at least one of S301 to S303. For example, S301 may be implemented as an independent embodiment, S302 may be implemented as an independent embodiment, S303 may be implemented as an independent embodiment, S301+S303 may be implemented as an independent embodiment, and S302+S303 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0356] In some embodiments, S301 and S302 may be executed in an interchangeable order or simultaneously.

[0357] In some embodiments, S303 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0358] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0359] FIG7 is a flow chart of a method for determining channel measurement information according to an embodiment of the present disclosure. As shown in FIG7 , the embodiment of the present disclosure relates to a method for determining channel measurement information, which is executed by a terminal and includes:

[0360] S701 : Determine the power of a reference PDSCH in an OTFS system, and determine channel measurement information based on the power of the reference PDSCH.

[0361] Among them, the optional implementation of S701 can refer to the optional implementation of S301 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0362] S702: Send channel measurement information.

[0363] Among them, the optional implementation of S702 can refer to the optional implementation of S303 in Figure 3 and other related parts in the embodiment involved in Figure 3, and will not be repeated here.

[0364] In some embodiments, the terminal sends the channel measurement information to the network device, but is not limited thereto, and the terminal may also send the channel measurement information to other entities.

[0365] Optionally, the channel measurement information is used by the network device to determine the actual channel state based on the power of the reference PDSCH in the OTFS system, so as to accurately schedule downlink data transmission based on the actual channel state, thereby improving the performance of downlink data transmission.

[0366] The communication method involved in the embodiment of the present disclosure may include at least one of S701 to S702. For example, S701 may be implemented as an independent embodiment, and S702 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0367] In some embodiments, S702 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0368] FIG8 is a flow chart of a method for determining channel measurement information according to an embodiment of the present disclosure. As shown in FIG8 , an embodiment of the present disclosure relates to a method for determining channel measurement information, which is executed by a network device and includes:

[0369] S801: Determine the power of a reference PDSCH in an OTFS system.

[0370] Among them, the optional implementation of S801 can refer to the optional implementation of S302 in Figure 3 and other related parts in the embodiment involved in Figure 3, and will not be repeated here.

[0371] S802: Acquire channel measurement information.

[0372] Among them, the optional implementation of S802 can refer to the optional implementation of S303 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0373] In some embodiments, the network device receives the channel measurement information sent by the terminal, but is not limited thereto, and may also receive the first information sent by other entities.

[0374] In some embodiments, the network device obtains channel measurement information specified by the protocol.

[0375] In some embodiments, the network device obtains channel measurement information from upper layer(s).

[0376] In some embodiments, the network device performs processing to obtain the channel measurement information.

[0377] In some embodiments, S802 is omitted, and the network device autonomously implements the function indicated by the channel measurement information, or the above function is default or by default.

[0378] In some embodiments, the network device determines the power of the reference PDSCH in the OTFS system and the channel measurement information sent by the receiving terminal, and can determine the actual channel state based on the power of the reference PDSCH to accurately schedule downlink data transmission based on the actual channel state, thereby improving the performance of downlink data transmission.

[0379] The communication method involved in the embodiment of the present disclosure may include at least one of S801 to S802. For example, S801 may be implemented as an independent embodiment, and S802 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0380] In some embodiments, S802 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0381] In some embodiments, in NR systems, the average RE power (EPRE) of the SSS, i.e., ss-PBCH-BlockPower, is directly transmitted as system information. The EPRE of the CSI-RS is determined based on the average EPRE of the SSS and the offset value powerControlOffsetSS. When performing CSI measurements, the EPRE of the reference PDSCH is determined based on the EPRE of the CSI-RS and the offset value powerControlOffset.

[0382] In the OTFS system, due to its two-dimensional circular convolution in the DD domain, at the receiver, any DD domain symbol is spread across multiple DD domain REs. Calculating the CSI-RS power and the reference PDSCH power to perform CSI and L1-RSRP measurements is a pressing issue.

[0383] The embodiments of the present disclosure provide a method for calculating the power of a CSI-RS signal, a method for calculating the power of a DMRS symbol referenced to a PDSCH, and a method for calculating the power of a data symbol referenced to a PDSCH, thereby improving the effectiveness of measurements such as CSI and L1-RSRP, and thereby improving the performance of downlink data transmission.

[0384] In the OTFS system, the equivalent DD domain channel h(τ,ν) is time-invariant. That is, data symbols on all REs in the DD domain experience the same channel h(τ,ν). Therefore, for an antenna port, channel information for the entire DD domain can be obtained by transmitting a reference signal (RS) on one or a group of DD domain REs.

[0385] Due to the two-dimensional circular convolution characteristics of OTFS in the DD domain, any DD domain symbol is spread across multiple DD domain REs. Specifically, assuming that the channel h(τ,ν) includes P paths (each path can have different delays and / or Dopplers), each DD domain symbol is spread across P DD domain REs. In order to eliminate the inter-symbol interference caused by the above-mentioned two-dimensional circular convolution characteristics, a guard interval can be inserted between different channels / signals. The DD domain REs occupied by the guard interval are not used to carry signals, or the carried symbols are 0. Because the guard interval is added around the RS, the RS can be power boosted, thereby improving the accuracy of channel estimation and channel measurement based on the RS.

[0386] In order to determine the power of a channel / signal in the OTFS system, the power of a channel or signal can be sent as a reference in the system information (ie, the first information described in the above embodiment), which is recorded as P ref. The power of other channels can be configured relative to the reference. The reference can also be the average EPRE of the SSS in the OFDM system. Alternatively, the reference can be the average EPRE of the SSS in the OTFS system. Alternatively, the reference can be the EPRE of the data symbols of the PBCH in the OTFS system. Alternatively, the reference can be the power level of the DMRS symbols of the PBCH in the OTFS system. The power level of the DMRS symbols of the PBCH can be defined as the average power on the REs occupied by the DMRS symbols. Because the DMRS symbols are power-boosted, the value of this average power is larger than the EPRE of the data symbols of the PBCH. The power level of the DMRS symbols of the PBCH can also be defined as the average power on the REs occupied by the DMRS symbols minus an offset value Δ1. Δ1 can be configured using broadcast information. Δ1 can also be calculated based on the guard interval of the DMRS symbols. For example, subtracting this offset value can remove the effect of the power boosting, so that the resulting value is equal to or close to the EPRE of the data symbols of the PBCH. On the terminal side, due to the two-dimensional circular convolution characteristics of OTFS in the DD domain, the terminal needs to collect the energy of the reference channel / signal on the REs of the multipath corresponding to the channel h(τ,ν).

[0387] In some embodiments, in an OTFS system, CSI and RSRP / L1-RSRP / L1-SINR may be measured based on CSI-RS.

[0388] The power level P of CSI-RS in OTFS system CSIRS It can be determined based on the reference channel / signal (such as the first information in the above embodiment) and the offset value powerOffset1. CSIRS =P ref +powerOffset1. powerOffset1 can be configured using broadcast information or RRC signaling. CSIRS It can be defined as the average power on the REs occupied by CSI-RS. Because CSI-RS has a power boost, this average power is larger than the EPRE of the data symbols transmitted by the general PDSCH. CSIRS It can also be defined as the average power on the REs occupied by the CSI-RS minus an offset value Δ2. Δ2 can be configured via broadcast information or RRC signaling. Δ2 can also be calculated based on the CSI-RS guard interval. For example, subtracting this offset value can remove the effect of power boost, resulting in a value equivalent to the EPRE of data symbols transmitted by a typical PDSCH. On the terminal side, due to the two-dimensional cyclic convolution characteristics of OTFS in the DD domain, the terminal needs to collect the CSI-RS energy on the REs corresponding to the multipath of the channel h(τ,ν).

[0389] When measuring CSI, the parameters of the reference PDSCH are determined based on the CSI-RS used for channel measurement.

[0390] In a possible implementation, a method for determining reference PDSCH parameters is as follows: the power level P of the reference PDSCH PDSCH The power level P of the CSI-RS can be CSIRS and offset value powerOffset2. For example, P PDSCH =P CSIRS +powerOffset2. powerOffset2 can be configured using broadcast information or RRC signaling.

[0391] P PDSCH It can be the EPRE of the data symbol of PDSCH. When measuring CSI, the power level of the DMRS symbol of the reference PDSCH can be based on P PDSCH For example, the power level of the DMRS symbol of the reference PDSCH is equal to P PDSCH +Offset1. Offset1 can be configured using broadcast information or RRC signaling. Figure 4A is a diagram showing the relationship between the power of CSI-RS, data symbols referenced to PDSCH, and DMRS symbols referenced to PDSCH.

[0392] Or, P PDSCH The EPRE of the data symbol of the reference PDSCH can be based on the P PDSCH For example, the EPRE of the data symbol of the reference PDSCH is equal to P PDSCH +Offset2. Offset2 can be configured using broadcast information or RRC signaling. Figure 4B is a diagram showing the relationship between the power of CSI-RS, data symbols referenced to PDSCH, and DMRS symbols referenced to PDSCH.

[0393] In another possible implementation, a method for determining reference PDSCH parameters is as follows: EPRE P of a data symbol of a reference PDSCH data and the power level P of the DMRS symbol of the reference PDSCH DMRS It can be based on the power level P of the CSI-RS CSIRS OK. data According to P CSIRS and offset value powerOffset3. For example, P data =P CSIRS +powerOffset3.P DMRSAccording to P CSIRS and offset value powerOffset4. For example, P DMRS =P CSIRS +powerOffset4. powerOffset3 and powerOffset4 can be configured using broadcast information or RRC signaling. Figure 4C is a diagram showing the relationship between the power of CSI-RS, reference PDSCH data symbols, and reference PDSCH DMRS symbols.

[0394] In the two implementations above, the power of a PDSCH DMRS symbol can be defined as the average power over the REs occupied by the DMRS. Because DMRS is power-boosted, this average power value is greater than the EPRE of the PDSCH data symbols. The power level of a PDSCH DMRS symbol can also be defined as the average power over the REs occupied by the DMRS minus an offset value Δ3. Δ3 can be configured using broadcast information or RRC signaling. Δ3 can also be calculated based on the DMRS guard interval. For example, subtracting this offset value can remove the effect of power boosting, resulting in a value equal to or close to the EPRE of the data symbols transmitted by the PDSCH.

[0395] On the terminal side, due to the two-dimensional cyclic convolution characteristics of OTFS in the DD domain, the terminal needs to collect the energy of the PDSCH data symbols or DMRS symbols on the REs of the multipath corresponding to the channel h(τ,ν).

[0396] In some embodiments, in an OTFS system, CSI and RSRP / L1-RSRP / L1-SINR, etc., may be measured based on the reference channel / signal (such as the first information described in the above embodiments). Here, the reference channel / signal may include the SSS, PBCH DMRS, and / or data symbols. The channel state measured on the reference channel or signal actually reflects the channel information of the entire DD domain.

[0397] When measuring CSI, parameters of the reference PDSCH are determined based on the reference channel / signal.

[0398] The first method to determine the reference PDSCH parameters: the power level P of the reference PDSCH PDSCH The power P of the reference channel / signal can be ref and offset value powerOffset2. For example, P PDSCH =P ref +powerOffset2. powerOffset2 can be configured using broadcast information or RRC signaling.

[0399] P PDSCHIt can be defined as the EPRE of the data symbol of PDSCH. When measuring CSI, the power level of the DMRS of the reference PDSCH can be based on P PDSCH For example, the power level of the DMRS of the reference PDSCH is equal to P PDSCH +Offset 1. Offset 1 can be configured using broadcast information or RRC signaling.

[0400] Or, P PDSCH It can be defined as the power level of the DMRS symbol of PDSCH. When measuring CSI, the EPRE of the data symbol of the reference PDSCH can be based on P PDSCH For example, the EPRE of the data symbol of the reference PDSCH is equal to P PDSCH +Offset2. Offset2 can be configured using broadcast information or RRC signaling.

[0401] The second method for determining the reference PDSCH parameters: EPRE P of the data symbol of the reference PDSCH data and the power level P of the DMRS of the reference PDSCH DMRS It can be based on the power P of the reference channel / signal ref OK. data According to P CSIRS and offset value powerOffset3. For example, P data =P ref +powerOffset3.P DMRS According to P CSIRS and offset value powerOffset4. For example, P DMRS =P ref +powerOffset4. powerOffset3 and powerOffset4 can be configured using broadcast information or RRC signaling.

[0402] In both methods described above, the power level of a PDSCH DMRS symbol can be defined as the average power across the REs occupied by the DMRS. Because DMRS is power-boosted, this average power value is greater than the EPRE of the PDSCH data symbols. The power level of a PDSCH DMRS symbol can also be defined as the average power across the REs occupied by the DMRS minus an offset value of Δ3. Δ3 can be configured using broadcast information or RRC signaling. Δ3 can also be calculated based on the DMRS guard interval.

[0403] On the terminal side, due to the two-dimensional cyclic convolution characteristics of OTFS in the DD domain, the terminal needs to collect the energy of the PDSCH data symbols or DMRS symbols on the REs of the multipath corresponding to the channel h(τ,ν).

[0404] In some embodiments, a network device semi-statically configures a terminal's downlink data channel resources. The downlink data channel resources include allocated DMRS resources. These DMRS resources can be used as CSI-RS resources for this terminal and / or other terminals to measure and obtain channel information for the entire DD domain. Such CSI-RS can be configured using RRC signaling. The method of Example 1 can be used to measure CSI and RSRP / L1-RSRP / L1-SINR based on this CSI-RS.

[0405] The network device dynamically schedules the terminal's downlink data channel resources, which include allocated DMRS resources. This DMRS resource can be used as the terminal's CSI-RS resource to measure and obtain channel information for the entire DD domain. The method in Example 1 can be used to measure CSI and RSRP / L1-RSRP / L1-SINR based on this CSI-RS.

[0406] Note that the DMRS EPRE and data symbol EPRE of the PDSCH of the terminal are P DMRS0 and P data0 , P DMRS0 and P data0 They can all be obtained by measuring the PDSCH of the terminal. Or, P DMRS0 It is obtained by measuring the DMRS of the PDSCH of the terminal, P data0 According to the terminal's PDSCH parameters and P DMRS0 When measuring CSI, refer to the EPRE P of the data symbol of PDSCH. data and EPRE P of DMRS of reference PDSCH DMRS It can be determined according to the PDSCH of the terminal. data =P data0 +powerOffset5,P DMRS =P DMRS0+powerOffset6, powerOffset5, and powerOffset6 can be configured using broadcast information or RRC signaling. Specifically, for this terminal, the terminal can assume that the power of the DMRS symbols and data symbols of the reference PDSCH used for CSI measurement is the same as that of the current PDSCH, and powerOffset5 = powerOffset6 = 0. Figure 6C shows the power relationship between the terminal's PDSCH and the reference PDSCH used for CSI measurement.

[0407] On the terminal side, due to the two-dimensional cyclic convolution characteristics of OTFS in the DD domain, the terminal needs to collect the energy of the PDSCH data symbols or DMRS symbols on the REs of the multipath corresponding to the channel h(τ,ν).

[0408] In this embodiment, in addition to equating the PDSCH DMRS to CSI-RS and then defining measurements such as CSI and L1-RSRP, it can also be described as directly defining measurements such as CSI and L1-RSRP based on the PDSCH DMRS.

[0409] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0410] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0411] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned 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 a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0412] FIG9A is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure. As shown in FIG9A , the terminal 100 may include at least one of a transceiver module 11 and a processing module 12 .

[0413] In some embodiments, the processing module 12 is configured to determine the power of a reference PDSCH in the OTFS system, and determine channel measurement information based on the power of the reference PDSCH.

[0414] The transceiver module 11 is configured to execute at least one of the communication steps (e.g., S301 to S303, but not limited thereto) such as sending and / or receiving performed by the terminal 101 in any of the above methods, and will not be described in detail here. Optionally, the processing module 22 is configured to execute at least one of the other steps (e.g., S301 to S303, but not limited thereto) performed by the terminal 101 in any of the above methods, and will not be described in detail here.

[0415] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0416] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0417] FIG9B is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure. As shown in FIG9B , the network device 102 may include at least one of a transceiver module 21 and a processing module 22 .

[0418] In some embodiments, the processing module 22 is configured to determine the power of a reference PDSCH in the OTFS system, wherein the power of the reference PDSCH is used by the terminal to determine channel measurement information.

[0419] The transceiver module 21 is configured to execute at least one of the communication steps (e.g., S301 to S303, but not limited thereto) such as sending and / or receiving performed by the network device 102 in any of the above methods, and will not be described in detail here. Optionally, the processing module 22 is configured to execute at least one of the other steps (e.g., S301 to S303, but not limited thereto) performed by the network device 102 in any of the above methods, and will not be described in detail here.

[0420] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0421] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0422] Figure 10A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0423] As shown in Figure 10A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0424] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, S301 to S303, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, S301 to S303, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated together. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc. may be interchangeable, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. may be interchangeable, and the terms receiver, receiving unit, receiver, receiving circuit, etc. may be interchangeable.

[0425] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memory 8102 and may be configured to receive data from the memory 8102 or other devices, or to send data to the memory 8102 or other devices. For example, the interface circuits 8104 may read data stored in the memory 8102 and send the data to the processor 8101.

[0426] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 10A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0427] FIG10B is a schematic diagram of the structure of the chip 8200 proposed in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG10B , but the present disclosure is not limited thereto.

[0428] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0429] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0430] In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., S301-S303, but not limited thereto) of the aforementioned method, such as sending and / or receiving. For example, the interface circuit 8202 performing the communication steps (e.g., S301-S303, but not limited thereto) of the aforementioned method means that the interface circuit 8202 performs data exchange between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps (e.g., S301-S303, but not limited thereto).

[0431] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute 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 thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0432] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0433] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0434] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0435] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0436] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A method for determining channel measurement information, characterized in that: The method is executed by a terminal, and includes: Determine the power of the reference physical downlink shared channel PDSCH in the orthogonal frequency division multiplexing (OTFS) system; Channel measurement information is determined based on the power of the reference PDSCH.

2. The method according to claim 1, characterized in that The method further comprises: The channel measurement information is sent to a network device.

3. The method according to claim 1 or 2, characterized in that The determining of the power of the reference PDSCH in the OTFS system includes at least one of the following: Determine the power of data symbols of a reference PDSCH, wherein the power of the reference PDSCH includes the power of data symbols of the reference PDSCH; The power of a demodulation reference signal DMRS symbol of a reference PDSCH is determined, wherein the power of the reference PDSCH includes the power of the DMRS symbol of the reference PDSCH.

4. The method according to claim 3, characterized in that The determining the power of the data symbol of the reference PDSCH includes: Determine the power of a channel state information reference signal CSI-RS in an OTFS system; determining a first offset value; The power of the data symbol of the reference PDSCH is determined according to the power of the CSI-RS and the first offset value.

5. The method according to claim 4, characterized in that The determining the power of the DMRS symbol of the reference PDSCH includes: determining a second offset value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the data symbol of the reference PDSCH and the second offset value.

6. The method according to claim 3, characterized in that The determining the power of the DMRS symbol of the reference PDSCH includes: Determine the power of CSI-RS in OTFS system; determining a third offset value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the CSI-RS and the third offset value.

7. The method according to claim 6, characterized in that The determining the power of the data symbol of the reference PDSCH comprises: determining a fourth offset value; The power of the data symbol of the reference PDSCH is determined according to the power of the DMRS symbol of the reference PDSCH and the fourth offset value.

8. The method according to claim 3, characterized in that The determining the power of the data symbol of the reference PDSCH includes: determining a power of the first information; determining a seventh offset value; The power of the data symbol of the reference PDSCH is determined according to the power of the first information and the seventh offset value.

9. The method according to claim 8, characterized in that The determining the power of the DMRS symbol of the reference PDSCH includes: determining an eighth offset value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the data symbol of the reference PDSCH and the eighth offset value.

10. The method according to claim 3, characterized in that The determining the power of the DMRS symbol of the reference PDSCH includes: determining a power of the first information; determining a ninth offset value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the first information and the ninth offset value.

11. The method according to claim 10, characterized in that The determining the power of the data symbol of the reference PDSCH comprises: determining a tenth offset value; The power of the data symbol of the reference PDSCH is determined according to the power of the DMRS symbol of the reference PDSCH and the tenth offset value.

12. The method according to claim 3, characterized in that The determining the power of the data symbol of the reference PDSCH includes: Determining the power of data symbols of the PDSCH; determining a first parameter value; The power of the data symbol of the reference PDSCH is determined according to the power of the data symbol of the PDSCH and the first parameter value.

13. The method according to claim 12, characterized in that The determining the power of the DMRS symbol of the reference PDSCH includes: determining a second parameter value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the data symbol of the reference PDSCH and the second parameter value.

14. The method according to claim 3, characterized in that The determining the power of the DMRS symbol of the reference PDSCH includes: Determine the power of the DMRS symbol of the PDSCH; determining a third parameter value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the DMRS of the PDSCH and the third parameter value.

15. The method according to claim 14, characterized in that The determining the power of the data symbol of the reference PDSCH includes: determining a fourth parameter value; The power of the data symbol of the reference PDSCH is determined according to the power of the DMRS of the reference PDSCH and the fourth parameter value.

16. The method according to any one of claims 3 to 15, characterized in that The power of the DMRS symbol of the reference PDSCH includes at least one of the following: The average power of the resource element RE occupied by the DMRS of the reference PDSCH; The first value is subtracted from the average power on REs occupied by the DMRS of the reference PDSCH.

17. The method according to any one of claims 4 to 7, characterized in that The determining the power of the CSI-RS in the OTFS system includes: determining a power of the first information; determining a power offset value; The power of the CSI-RS is determined according to the power of the first information and the power offset value.

18. The method according to claim 17, characterized in that The power of the CSI-RS in the OTFS system includes at least one of the following: Average power on REs occupied by CSI-RS in OTFS system; The average power on REs occupied by the CSI-RS in the OTFS system is subtracted from the second value.

19. The method according to any one of claims 8 to 11, 17 and 18, characterized in that The determining of the power of the first information includes at least one of the following: Determine the power EPRE on each RE of the SSS in an orthogonal frequency division multiplexing (OFDM) system; Determine the EPRE of the secondary synchronization signal SSS in the OTFS system; Determine the EPRE of data symbols of the physical broadcast channel PBCH in the OTFS system; Determine the power of DMRS symbols of PBCH in OTFS system.

20. The method of claim 19, wherein: The determining the power of the first information includes: receiving indication information sent by a network device, wherein the indication information is used to indicate the power of the first information; The power of the first information is determined according to the indication information.

21. The method according to claim 19 or 20, characterized in that The power of the DMRS symbol of the PBCH in the OTFS system includes at least one of the following: The average power on REs occupied by DMRS of PBCH in OTFS system; The average power on REs occupied by DMRS of PBCH in the OTFS system is subtracted from the third value.

22. A method for determining channel measurement information, characterized in that: The method is performed by a network device and includes: The power of a reference PDSCH in an OTFS system is determined, wherein the power of the reference PDSCH is used by a terminal to determine channel measurement information.

23. The method of claim 22, wherein: The method further comprises: receiving the channel measurement information sent by the terminal.

24. The method according to claim 22 or 23, characterized in that The determining of the power of the reference PDSCH in the OTFS system includes at least one of the following: Determine the power of data symbols of a reference PDSCH, wherein the power of the reference PDSCH includes the power of data symbols of the reference PDSCH; The power of a DMRS symbol of a reference PDSCH is determined, wherein the power of the reference PDSCH includes the power of the DMRS symbol of the reference PDSCH.

25. The method of claim 24, wherein: The determining the power of the data symbol of the reference PDSCH includes: Determine the power of CSI-RS in OTFS system; determining a first offset value; The power of the data symbol of the reference PDSCH is determined according to the power of the CSI-RS and the first offset value.

26. The method of claim 25, wherein: The determining the power of the DMRS symbol of the reference PDSCH includes: determining a second offset value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the data symbol of the reference PDSCH and the second offset value.

27. The method of claim 24, wherein: The determining the power of the DMRS symbol of the reference PDSCH includes: Determine the power of CSI-RS in OTFS system; determining a third offset value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the CSI-RS and the third offset value.

28. The method of claim 27, wherein: The determining the power of the data symbol of the reference PDSCH comprises: determining a fourth offset value; The power of the data symbol of the reference PDSCH is determined according to the power of the DMRS symbol of the reference PDSCH and the fourth offset value.

29. The method of claim 24, wherein: The determining the power of the data symbol of the reference PDSCH includes: determining a power of the first information; determining a seventh offset value; The power of the data symbol of the reference PDSCH is determined according to the power of the first information and the seventh offset value.

30. The method of claim 29, wherein: The determining the power of the DMRS symbol of the reference PDSCH includes: determining an eighth offset value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the data symbol of the reference PDSCH and the eighth offset value.

31. The method of claim 24, wherein: The determining the power of the DMRS symbol of the reference PDSCH includes: determining a power of the first information; determining a ninth offset value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the first information and the ninth offset value.

32. The method of claim 31, wherein: The determining the power of the data symbol of the reference PDSCH comprises: determining a tenth offset value; The power of the data symbol of the reference PDSCH is determined according to the power of the DMRS symbol of the reference PDSCH and the tenth offset value.

33. The method of claim 24, wherein: The determining the power of the data symbol of the reference PDSCH includes: Determining the power of data symbols of the PDSCH; determining a first parameter value; The power of the data symbol of the reference PDSCH is determined according to the power of the data symbol of the PDSCH and the first parameter value.

34. The method of claim 33, wherein: The determining the power of the DMRS symbol of the reference PDSCH includes: determining a second parameter value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the data symbol of the reference PDSCH and the second parameter value.

35. The method of claim 24, wherein: The determining the power of the DMRS symbol of the reference PDSCH includes: Determine the power of the DMRS symbol of the PDSCH; determining a third parameter value; The power of the DMRS symbol of the reference PDSCH is determined according to the power of the DMRS of the PDSCH and the third parameter value.

36. The method of claim 35, wherein: The determining the power of the data symbol of the reference PDSCH includes: determining a fourth parameter value; The power of the data symbol of the reference PDSCH is determined according to the power of the DMRS of the reference PDSCH and the fourth parameter value.

37. The method according to any one of claims 24 to 36, characterized in that The power of the DMRS symbol of the reference PDSCH includes at least one of the following: Refer to the average power on REs occupied by DMRS of PDSCH; The first value is subtracted from the average power on REs occupied by the DMRS of the reference PDSCH.

38. The method according to any one of claims 25 to 28, characterized in that The determining the power of the CSI-RS in the OTFS system includes: determining a power of the first information; determining a power offset value; The power of the CSI-RS is determined according to the power of the first information and the power offset value.

39. The method of claim 38, wherein: The power of the CSI-RS in the OTFS system includes at least one of the following: Average power on REs occupied by CSI-RS in OTFS system; The average power on REs occupied by the CSI-RS in the OTFS system is subtracted from the second value.

40. The method according to any one of claims 29 to 32, 38 and 39, characterized in that The determining of the power of the first information includes at least one of the following: Determine the EPRE of SSS in OFDM system; Determine the EPRE of SSS in the OTFS system; Determine the EPRE of data symbols of PBCH in the OTFS system; Determine the power of DMRS symbols of PBCH in OTFS system.

41. The method of claim 40, wherein: The method comprises: Sending indication information to the terminal, wherein the indication information is used to indicate the power of the first information.

42. The method according to claim 40 or 41, characterized in that The power of the DMRS symbol of the PBCH in the OTFS system includes at least one of the following: The average power on REs occupied by DMRS of PBCH in OTFS system; The average power on REs occupied by DMRS of PBCH in the OTFS system is subtracted from the third value.

43. An information transmission method, characterized in that: include: The terminal determines the power of a reference PDSCH in the OTFS system, and determines channel measurement information based on the power of the reference PDSCH; The network device determines the power of a reference PDSCH in the OTFS system, wherein the power of the reference PDSCH is used by the terminal to determine channel measurement information.

44. A terminal, characterized in that: include: The processing module is used to determine the power of a reference PDSCH in the OTFS system, and determine channel measurement information based on the power of the reference PDSCH.

45. A network device, characterized in that: include: The processing module is used to determine the power of the reference PDSCH in the OTFS system, wherein the power of the reference PDSCH is used by the terminal to determine channel measurement information.

46. ​​A terminal, characterized in that: include: one or more processors; A memory coupled to the processor, wherein the memory stores instructions, and when the instructions are executed by the processor, the terminal executes the method according to any one of claims 1 to 21.

47. A network device, characterized in that: include: one or more processors; A memory coupled to the processor, wherein instructions are stored in the memory, and when the instructions are executed by the processor, the network device executes the method according to any one of claims 22 to 42.

48. A communication system, characterized in that: The method comprises a terminal and a network device, wherein the terminal is configured to implement the method according to any one of claims 1 to 22, and the network device is configured to implement the method according to any one of claims 22 to 42.

49. A storage medium storing instructions, characterized in that: When the instructions are executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 21 and 22 to 42.

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