Transmission method, communication device, computer readable storage medium and chip

Abstract

Embodiments of the present disclosure provide a transmission method, a communication device, a computer readable storage medium and a chip. In the method, a terminal device determines a power control adjustment value at a current transmission occasion based on a time domain window before the current transmission occasion, wherein the time domain window includes at least two transmission occasions; determines a transmission power of the current transmission occasion based on the power control adjustment value; and transmits at the current transmission occasion at the transmission power. In this way, the terminal device can determine the transmission power based on the time domain window, so that the determined transmission power can match the actual scene, ensuring the communication performance.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of communications, and more specifically, to a transmission method, a communication apparatus, a computer-readable storage medium, and a chip. BACKGROUND

[0002] In a wireless communication system involving a terminal device and an access network device, the terminal device and the access network device can perform various communications of signaling, information, and data.

[0003] When the terminal device performs uplink transmission to the access network device, the terminal device needs to determine the uplink transmission power before transmission. However, due to the diversity and complexity of real scenarios, the current uplink transmission power determination scheme is not perfect, and even cannot determine the uplink transmission power that meets the requirements. SUMMARY

[0004] Example embodiments of the present disclosure provide a scheme for determining transmission power based on a time domain window.

[0005] In a first aspect, a transmission method is provided. The method includes: determining, by a terminal device, a power control adjustment value at a current transmission occasion based on a time domain window before the current transmission occasion, wherein the time domain window includes at least two transmission occasions; determining, by the terminal device, a transmission power of the current transmission occasion based on the power control adjustment value; and performing, by the terminal device, transmission at the current transmission occasion with the transmission power.

[0006] In this way, the terminal device can determine the transmission power based on the time domain window, so that the determined transmission power can match the actual scenario, and the communication performance is guaranteed.

[0007] In some embodiments of the first aspect, wherein determining the power control adjustment value at the current transmission occasion includes: determining the power control adjustment value at the current transmission occasion based on an initial power control adjustment value of a starting transmission occasion of the time domain window and an accumulation, wherein the accumulation is an accumulation of first parameter values in all downlink control information (DCI) received between a first time associated with the starting transmission occasion and a second time associated with the current transmission occasion.

[0008] In this way, when determining the power control adjustment value, the terminal device can fully consider all accumulations in the time domain window, avoid omission of transmission power control command values, truly reflect the adjustment of power control, and guarantee the communication performance.

[0009] In some embodiments of the first aspect, wherein determining the power control adjustment value at the current transmission occasion includes: determining a scaling factor based on the time domain window; obtaining a second parameter value corresponding to a TPC command field parameter in DCI from the access network device; and determining the power control adjustment value at the current transmission occasion based on the second parameter value and the scaling factor.

[0010] In this way, the terminal device can determine the power control adjustment value based on the second parameter value in combination with the scaling factor, and can better adapt to the actual required power adjustment range, thereby ensuring the communication performance.

[0011] In some embodiments of the first aspect, wherein determining the scaling factor based on the time domain window comprises: determining the scaling factor based on a total length between a starting transmission occasion and a current transmission occasion of the time domain window; or determining the scaling factor based on a length of the time domain window.

[0012] In this way, the terminal device determines the scaling factor by the span of the time domain window, and the method is simple and easy to implement, and can improve the efficiency of determining the transmission power.

[0013] In some embodiments of the first aspect, wherein determining the scaling factor based on the time domain window comprises: obtaining an interval length, wherein the interval length is a total length between a starting transmission occasion and a current transmission occasion of the time domain window or a length of the time domain window; and obtaining the scaling factor corresponding to the interval length based on a correspondence between the interval length and the scaling factor, wherein the correspondence is configured by an RRC of the access network device or predefined.

[0014] In this way, the terminal device determines the interval length by the span of the time domain window, and determines the scaling factor based on the RRC configuration, and the method has a certain flexibility.

[0015] In some embodiments of the first aspect, wherein determining the scaling factor based on the time domain window comprises: obtaining an interval length, wherein the interval length is a total length between a starting transmission occasion and a current transmission occasion of the time domain window or a length of the time domain window; obtaining a scaling factor from RRC signaling or DCI of the access network device; and determining the scaling factor based on the interval length and the scaling factor.

[0016] In this way, the terminal device determines the interval length by the span of the time domain window, and determines the scaling factor in combination with the scaling factor in the RRC or DCI, and the method has a certain flexibility, and takes into account various factors to make the determined scaling factor more accurate.

[0017] In some embodiments of the first aspect, wherein determining the power control adjustment value at the current transmission occasion based on the second parameter value and the scaling factor comprises: determining the power control adjustment value at the current transmission occasion based on a product of the second parameter value and the scaling factor.

[0018] In some embodiments of the first aspect, wherein determining the power control adjustment value at the current transmission occasion comprises: obtaining an interval length, wherein the interval length is a total length between a starting transmission occasion of the time domain window and the current transmission occasion or a length of the time domain window; obtaining a TPC command field parameter in the DCI from the access network device; determining the power control adjustment value at the current transmission occasion based on the interval length and the TPC command field parameter.

[0019] In this way, the expansion of the TPC command value is achieved, which is not only related to the TPC command field but also related to the interval length. Such expansion makes the range of the power control adjustment value larger and the adjustment amount more precise, which can better adapt to the required power control adjustment amplitude in actual scenarios and ensure the communication performance.

[0020] In some embodiments of the first aspect, wherein the time domain window is used for joint channel estimation, and the current transmission occasion and a starting transmission occasion of the time domain window further include interrupt time domain resources that are not used for joint channel estimation.

[0021] In a second aspect, a communication apparatus is provided. The apparatus comprises: a first determining unit configured to determine a power control adjustment value at a current transmission occasion based on a time domain window before the current transmission occasion, wherein the time domain window comprises at least two transmission occasions; a second determining unit configured to determine a transmission power of the current transmission occasion based on the power control adjustment value at the current transmission occasion; and a transmission unit configured to transmit at the current transmission occasion with the transmission power.

[0022] In some embodiments of the second aspect, wherein the first determining unit is configured to determine the power control adjustment value at the current transmission occasion based on an initial power control adjustment value at a starting transmission occasion of the time domain window and an accumulation, wherein the accumulation is an accumulation of first parameter values in all downlink control information (DCI) received between a first time associated with the starting transmission occasion and a second time associated with the current transmission occasion.

[0023] In some embodiments of the second aspect, wherein the first determining unit is configured to determine a scaling factor based on the time domain window; obtain a second parameter value corresponding to a TPC command field parameter in the DCI from the access network device; and determine the power control adjustment value at the current transmission occasion based on the second parameter value and the scaling factor.

[0024] In some embodiments of the second aspect, wherein the first determining unit is configured to determine a scaling factor based on a total length between a starting transmission occasion of the time domain window and the current transmission occasion; or determine the scaling factor based on a length of the time domain window.

[0025] In some embodiments of the second aspect, the first determining unit is configured to: obtain an interval length, wherein the interval length is a total length between a starting transmission occasion of the time domain window and the current transmission occasion or a length of the time domain window; and obtain the scaling factor corresponding to the interval length based on a correspondence between the interval length and the scaling factor, wherein the correspondence is configured by the RRC of the access network device or predefined.

[0026] In some embodiments of the second aspect, the first determining unit is configured to: obtain an interval length, wherein the interval length is a total length between a starting transmission occasion of the time domain window and the current transmission occasion or a length of the time domain window; obtain a scaling factor from RRC signaling or DCI of the access network device; and determine the scaling factor based on the interval length and the scaling factor.

[0027] In some embodiments of the second aspect, the first determining unit is configured to: determine the power control adjustment value at the current transmission occasion based on a product of the second parameter value and the scaling factor.

[0028] In some embodiments of the second aspect, the first determining unit is configured to: obtain an interval length, wherein the interval length is a total length between a starting transmission occasion of the time domain window and the current transmission occasion or a length of the time domain window; obtain a TPC command field parameter from DCI of the access network device; and determine the power control adjustment value at the current transmission occasion based on the interval length and the TPC command field parameter.

[0029] In some embodiments of the second aspect, the time domain window is used for joint channel estimation, and the current transmission occasion and a starting transmission occasion of the time domain window further include an interruption time domain resource that is not used for joint channel estimation.

[0030] In a third aspect, a communication apparatus is provided, comprising a transceiver, a processor, and a memory having instructions stored thereon for execution by the processor, which when executed by the processor cause the apparatus to implement: determining a power control adjustment value at a current transmission occasion based on a time domain window before the current transmission occasion, wherein the time domain window comprises at least two transmission occasions; determining a transmission power of the current transmission occasion based on the power control adjustment value of the current transmission occasion; and transmitting at the current transmission occasion via the transceiver at the transmission power.

[0031] In some embodiments of the third aspect, the processor executes the instructions to cause the apparatus to implement: determining the power control adjustment value at the current transmission occasion based on an initial power control adjustment value of a starting transmission occasion of the time domain window and an accumulation, wherein the accumulation is an accumulation of first parameter values in all downlink control information (DCI) received between a first time associated with the starting transmission occasion and a second time associated with the current transmission occasion.

[0032] In some embodiments of the third aspect, wherein the processor executes the instructions to cause the apparatus to implement: determining the scaling factor based on a total length between a starting transmission occasion of the time domain window and the current transmission occasion; or determining the scaling factor based on a length of the time domain window.

[0033] In some embodiments of the third aspect, wherein the processor executes the instructions to cause the apparatus to implement: determining the scaling factor based on a total length between a starting transmission occasion of the time domain window and the current transmission occasion; or determining the scaling factor based on a length of the time domain window.

[0034] In some embodiments of the third aspect, wherein the processor executes the instructions to cause the apparatus to implement: obtaining an interval length, wherein the interval length is a total length between a starting transmission occasion of the time domain window and the current transmission occasion or a length of the time domain window; obtaining the scaling factor corresponding to the interval length based on a correspondence between interval lengths and scaling factors, wherein the correspondence is configured by RRC of the access network device or predefined.

[0035] In some embodiments of the third aspect, wherein the processor executes the instructions to cause the apparatus to implement: obtaining an interval length, wherein the interval length is a total length between a starting transmission occasion of the time domain window and the current transmission occasion or a length of the time domain window; obtaining a scaling factor from RRC signaling or DCI of the access network device; determining the scaling factor based on the interval length and the scaling factor.

[0036] In some embodiments of the third aspect, wherein the processor executes the instructions to cause the apparatus to implement: determining the power control adjustment value for the current transmission occasion based on a product of the second parameter value and the scaling factor.

[0037] In some embodiments of the third aspect, wherein the processor executes the instructions to cause the apparatus to implement: obtaining an interval length, wherein the interval length is a total length between a starting transmission occasion of the time domain window and the current transmission occasion or a length of the time domain window; obtaining a TPC command field parameter from DCI of the access network device; determining the power control adjustment value for the current transmission occasion based on the interval length and the TPC command field parameter.

[0038] In some embodiments of the third aspect, wherein the time domain window is for joint channel estimation, and the current transmission occasion and a starting transmission occasion of the time domain window further include an interrupt time domain resource that is not for joint channel estimation.

[0039] In a fourth aspect, a transmission method is provided. The method comprises: obtaining, by a terminal device, power indication information, wherein the power indication information is used to indicate a power adjustment value for a current time domain resource, the power indication information comprises TPC indication information, the current time domain resource comprises at least two transmission occasions or a previous time domain resource of the current time domain resource comprises at least two transmission occasions; determining, by the terminal device, a power control adjustment value for the current time domain resource based on the power indication information; determining, by the terminal device, a transmission power for the current time domain resource based on the power control adjustment value for the current time domain resource; and transmitting, by the terminal device, in the current time domain resource at the transmission power.

[0040] In some embodiments of the fourth aspect, wherein the power adjustment value indicated by the TPC indication information is determined from a value set, the value set comprises at least one value greater than 4.

[0041] In some embodiments of the fourth aspect, wherein a number of bits occupied by the TPC indication information is greater than 2, and / or a number of elements in the value set is greater than 4.

[0042] In some embodiments of the fourth aspect, wherein the value set is determined from at least two value sets based on a predefined criterion, or the value set is determined from at least two value sets based on an index from RRC.

[0043] In some embodiments of the fourth aspect, wherein the value set is configured by RRC signaling or the value set is predefined.

[0044] In some embodiments of the fourth aspect, determining the power control adjustment value for the current time domain resource based on the power indication information comprises: determining the power control adjustment value for the current time domain resource based on a scaling factor and the power adjustment value indicated by the TPC indication information.

[0045] In some embodiments of the fourth aspect, the scaling factor is a predetermined value; or the scaling factor is determined based on a third message and / or a predefined criterion, wherein the third message is carried in RRC signaling.

[0046] In some embodiments of the fourth aspect, the scaling factor is determined based on a third message, the third message comprising the scaling factor.

[0047] In some embodiments of the fourth aspect, the scaling factor is determined based on a third message and a fourth message, wherein the fourth message is used to determine one of a plurality of scaling factors. In some examples, the terminal device receives the third message, wherein the third message comprises the plurality of scaling factors; the terminal device receives the fourth message, the fourth message comprising scaling factor indication information; and the terminal device obtains the scaling factor indicated by the scaling factor indication information from the plurality of scaling factors.

[0048] In some embodiments of the fourth aspect, the fourth message is a DCI or a MAC-CE.

[0049] In some embodiments of the fourth aspect, the scaling factor is determined based on a predefined criterion, wherein the predefined criterion is an interval length, the interval length being a length of a previous time-domain resource or being a length between a first transmission occasion of the previous time-domain resource and a first transmission occasion of the current time-domain resource.

[0050] In some embodiments of the fourth aspect, the scaling factor is determined based on the third message and a predefined criterion, wherein the third message comprises a scaling factor and the predefined criterion is an interval length. In some embodiments, a product of the scaling factor and the interval length is taken as the scaling factor.

[0051] In a fifth aspect, a communication apparatus is provided. The apparatus comprises: an obtaining unit configured to obtain power indication information, wherein the power indication information is used to indicate a power control adjustment value for a current time-domain resource, the power indication information comprises TPC indication information, and the current time-domain resource comprises at least two transmission occasions or a previous time-domain resource of the current time-domain resource comprises at least two transmission occasions; a first determining unit configured to determine, based on the power indication information, the power control adjustment value for the current time-domain resource; a second determining unit configured to determine, based on the power control adjustment value for the current time-domain resource, a transmit power for the current time-domain resource; and a transmitting unit configured to cause the terminal device to transmit at the transmit power in the current time-domain resource.

[0052] In some embodiments of the fifth aspect, wherein the power adjustment value indicated by the TPC indication information is determined from a value set, and the value set comprises at least one value greater than 4.

[0053] In some embodiments of the fifth aspect, wherein a number of bits occupied by the TPC indication information is greater than 2, and / or a number of elements in the value set is greater than 4.

[0054] In some embodiments of the fifth aspect, wherein the value set is determined from at least two value sets based on a predefined criterion, or the value set is determined from at least two value sets based on an index from RRC.

[0055] In some embodiments of the fifth aspect, wherein the value set is configured by RRC signaling or the value set is predefined.

[0056] In some embodiments of the fifth aspect, the first determining unit is configured to determine, based on a scaling factor and a power adjustment value indicated by the TPC indication information, the power control adjustment value for the current time-domain resource.

[0057] In some embodiments of the fifth aspect, the scaling factor is a predetermined value; or, the scaling factor is determined based on the third message and / or a predefined criterion, wherein the third message is carried in RRC signaling.

[0058] In some embodiments of the fifth aspect, the scaling factor is determined based on the third message, which includes the scaling factor.

[0059] In some embodiments of the fifth aspect, the scaling factor is determined based on the third message and a fourth message, wherein the fourth message is used to determine one of the plurality of scaling factors. In some examples, the obtaining unit is configured to receive the third message, wherein the third message includes the plurality of scaling factors; receive the fourth message, which includes scaling factor indication information; and obtain the scaling factor indicated by the scaling factor indication information from the plurality of scaling factors.

[0060] In some embodiments of the fifth aspect, the fourth message is DCI or MAC-CE.

[0061] In some embodiments of the fifth aspect, the scaling factor is determined based on a predefined criterion, wherein the predefined criterion is an interval length, which is a length of a previous time-domain resource or a length between a first transmission occasion of the previous time-domain resource and a first transmission occasion of the current time-domain resource.

[0062] In some embodiments of the fifth aspect, the scaling factor is determined based on the third message and a predefined criterion, wherein the third message includes a scaling factor and the predefined criterion is an interval length. In some embodiments, a product of the scaling factor and the interval length is taken as the scaling factor.

[0063] In a sixth aspect, a communication apparatus is provided, which includes a transceiver, a processor, and a memory having instructions stored thereon for execution by the processor, which when executed by the processor, cause the apparatus to implement: obtaining, via the transceiver, power indication information, wherein the power indication information is used to indicate a power adjustment value for a current time-domain resource, the power indication information includes TPC indication information, and the current time-domain resource includes at least two transmission occasions or a previous time-domain resource of the current time-domain resource includes at least two transmission occasions; determining, based on the power indication information, a power control adjustment value for the current time-domain resource; determining, based on the power control adjustment value for the current time-domain resource, a transmission power for the current time-domain resource; and transmitting, via the transceiver, at the transmission power in the current time-domain resource.

[0064] In some embodiments of the sixth aspect, wherein the power adjustment value indicated by the TPC indication information is determined from a set of values, which includes at least one value greater than 4.

[0065] In some embodiments of the sixth aspect, wherein the number of bits occupied by the TPC indication information is greater than 2, and / or, the number of elements in the set of values is greater than 4.

[0066] In some embodiments of the sixth aspect, wherein the set of values is determined from at least two sets of values based on a predefined criterion, or the set of values is determined from at least two sets of values based on an index from RRC.

[0067] In some embodiments of the sixth aspect, wherein the set of values is configured by RRC signaling or the set of values is predefined.

[0068] In some embodiments of the sixth aspect, wherein the processor executes the instructions to cause the apparatus to implement: determining the power control adjustment value for the current time-domain resource based on the scaling factor and the power adjustment value indicated by the TPC indication information.

[0069] In some embodiments of the sixth aspect, the scaling factor is a predetermined value; or the scaling factor is determined based on a third message and / or a predefined criterion, wherein the third message is carried in RRC signaling.

[0070] In some embodiments of the sixth aspect, the scaling factor is determined based on a third message, wherein the third message comprises the scaling factor.

[0071] In some embodiments of the sixth aspect, the scaling factor is determined based on a third message and a fourth message, wherein the fourth message is used to determine one of a plurality of scaling factors. In some examples, wherein the processor executes the instructions to cause the apparatus to implement, via the transceiver: receiving the third message, wherein the third message comprises the plurality of scaling factors; receiving the fourth message, wherein the fourth message comprises scaling factor indication information; obtaining the scaling factor indicated by the scaling factor indication information from the plurality of scaling factors.

[0072] In some embodiments of the sixth aspect, the fourth message is DCI or MAC-CE.

[0073] In some embodiments of the sixth aspect, the scaling factor is determined based on a predefined criterion, wherein the predefined criterion is an interval length, and the interval length is a length of a previous time-domain resource or a length between a first transmission occasion of the previous time-domain resource and a first transmission occasion of the current time-domain resource.

[0074] In some embodiments of the sixth aspect, the scaling factor is determined based on a third message and a predefined criterion, wherein the third message comprises a scaling factor and the predefined criterion is an interval length. In some embodiments, a product of the scaling factor and the interval length is taken as the scaling factor.

[0075] In a seventh aspect, a transmission method is provided. The method comprises: sending, by an access network device, power indication information to a terminal device, wherein the power indication information is used to indicate a power adjustment value of a current time domain resource, the power indication information comprises TPC indication information, the current time domain resource comprises at least two transmission occasions or a previous time domain resource of the current time domain resource comprises at least two transmission occasions; receiving, by the access network device, a transmission performed by the terminal device at a transmit power in the current time domain resource, and the TPC indication information is a basis for determining the transmit power. For example, the terminal device can determine the transmit power based on the TPC indication information.

[0076] In some embodiments of the seventh aspect, a number of bits occupied by the TPC indication information is greater than 2.

[0077] In some embodiments of the seventh aspect, the power adjustment value indicated by the TPC indication information is determined from a value set, and the value set comprises at least one value greater than 4.

[0078] In some embodiments of the seventh aspect, a number of elements in the value set is greater than 4.

[0079] In some embodiments of the seventh aspect, the method further comprises: sending, by the access network device, a third message to the terminal device, wherein the third message is used for the terminal device to determine the transmit power, the third message is carried in RRC signaling, and the third message comprises a scaling factor or a scaling factor.

[0080] In some embodiments of the seventh aspect, the method further comprises: sending, by the access network device, a third message to the terminal device, wherein the third message comprises a plurality of scaling factors; and sending, by the access network device, a fourth message to the terminal device, wherein the fourth message is used to indicate one of the plurality of scaling factors, the third message is carried in RRC signaling, the fourth message is DCI or MAC-CE, and the third message and the fourth message are used for the terminal device to determine the transmit power.

[0081] In some embodiments of the seventh aspect, the method further comprises: sending, by the access network device, configuration information to the terminal device, wherein the configuration information is used to configure a plurality of sets.

[0082] In some embodiments of the seventh aspect, the method further comprises: sending, by the access network device, set indication information to the terminal device, wherein the set indication information is used for the terminal device to determine the value set from the plurality of sets.

[0083] In an eighth aspect, a communication apparatus is provided. The apparatus comprises: a sending unit configured to send power indication information to a terminal device, wherein the power indication information is used to indicate a power adjustment value of a current time domain resource, the power indication information comprises TPC indication information, the current time domain resource comprises at least two transmission occasions or a previous time domain resource of the current time domain resource comprises at least two transmission occasions; a receiving unit configured to receive, in the current time domain resource, a transmission performed by the terminal device at a transmission power, the TPC indication information is a basis for determining the transmission power. For example, the terminal device can determine the transmission power based on the TPC indication information.

[0084] In some embodiments of the eighth aspect, a number of bits occupied by the TPC indication information is greater than 2.

[0085] In some embodiments of the eighth aspect, the power adjustment value indicated by the TPC indication information is determined from a value set, the value set comprises at least one value greater than 4.

[0086] In some embodiments of the eighth aspect, a number of elements in the value set is greater than 4.

[0087] In some embodiments of the eighth aspect, the sending unit is further configured to send, to the terminal device, a third message used by the terminal device to determine the transmission power, wherein the third message is carried in RRC signaling, and the third message comprises a scaling factor or a scaling factor.

[0088] In some embodiments of the eighth aspect, the sending unit is further configured to send, to the terminal device, a third message comprising a plurality of scaling factors, and send, to the terminal device, a fourth message used to indicate one of the plurality of scaling factors, wherein the third message is carried in RRC signaling, the fourth message is DCI or MAC-CE, and the third message and the fourth message are used by the terminal device to determine the transmission power.

[0089] In some embodiments of the eighth aspect, the sending unit is further configured to send, to the terminal device, configuration information, wherein the configuration information is used to configure a plurality of sets.

[0090] In some embodiments of the eighth aspect, the sending unit is further configured to send, to the terminal device, set indication information used by the terminal device to determine the value set from the plurality of sets.

[0091] In a ninth aspect, a communication apparatus is provided. The apparatus includes a transceiver, a processor, and a memory having instructions stored thereon that, when executed by the processor, cause the apparatus to implement: sending, via the transceiver, power indication information to a terminal device, wherein the power indication information is used to indicate a power adjustment value of a current time domain resource, the power indication information includes TPC indication information, the current time domain resource includes at least two transmission occasions or a previous time domain resource of the current time domain resource includes at least two transmission occasions; receiving, via the transceiver, a transmission by the terminal device at a transmit power on the current time domain resource, the TPC indication information is a basis for determining the transmit power. For example, the terminal device can determine the transmit power based on the TPC indication information.

[0092] In some embodiments of the ninth aspect, wherein a number of bits occupied by the TPC indication information is greater than 2.

[0093] In some embodiments of the ninth aspect, wherein the power adjustment value indicated by the TPC indication information is determined from a value set, the value set includes at least one value greater than 4.

[0094] In some embodiments of the ninth aspect, wherein a number of elements in the value set is greater than 4.

[0095] In some embodiments of the ninth aspect, wherein the processor executes the instructions to cause the apparatus to implement: sending, via the transceiver, a third message to the terminal device, the third message is used by the terminal device to determine the transmit power, wherein the third message is carried in RRC signaling, the third message includes a scaling factor or a scaling factor.

[0096] In some embodiments of the ninth aspect, wherein the processor executes the instructions to cause the apparatus to implement: sending, via the transceiver, a third message to the terminal device, the third message includes a plurality of scaling factors; sending a fourth message to the terminal device, the fourth message is used to indicate one of the plurality of scaling factors, wherein the third message is carried in RRC signaling, the fourth message is DCI or MAC-CE, the third message and the fourth message are used by the terminal device to determine the transmit power.

[0097] In some embodiments of the ninth aspect, wherein the processor executes the instructions to cause the apparatus to implement: sending, via the transceiver, configuration information to the terminal device, wherein the configuration information is used to configure a plurality of sets.

[0098] In some embodiments of the ninth aspect, wherein the processor executes the instructions to cause the apparatus to implement: sending, via the transceiver, set indication information to the terminal device, the set indication information is used by the terminal device to determine the value set from the plurality of sets.

[0099] In a tenth aspect, a terminal device is provided. The terminal device can be configured to implement the method of the first aspect, the fourth aspect, or any implementation thereof.

[0100] In an eleventh aspect, an access network device is provided. The access network device can be configured to implement the method of the seventh aspect, or any implementation thereof.

[0101] In a twelfth aspect, a computer-readable storage medium is provided. The computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the operations of the method according to the first aspect, the fourth aspect, the seventh aspect, or any implementation thereof.

[0102] In a thirteenth aspect, a chip or chip system is provided. The chip or chip system includes processing circuitry configured to perform the operations of the method according to the first aspect, the fourth aspect, the seventh aspect, or any implementation thereof.

[0103] In a fourteenth aspect, a computer program or computer program product is provided. The computer program or computer program product is tangibly stored on a computer-readable medium and includes computer-executable instructions that, when executed on a computer, cause the computer to perform the operations of the method according to the first aspect, the fourth aspect, the seventh aspect, or any implementation thereof.

[0104] In a fifteenth aspect, a wireless communication system is provided. The system includes an access network device and a terminal device, wherein the terminal device can be configured to implement the operations of the method according to the first aspect, the fourth aspect, or any implementation thereof, and wherein the access network device can be configured to implement the operations of the method according to the seventh aspect, or any implementation thereof. BRIEF DESCRIPTION OF DRAWINGS

[0105] The features, advantages, and other aspects of the present disclosure will become more apparent from the following detailed description in conjunction with the accompanying drawings. Several implementations of the present disclosure are illustrated in the drawings, in which:

[0106] Figure 1 A schematic diagram of a communication system 100 in which embodiments of the present disclosure can be implemented is shown;

[0107] Figure 2 A schematic flow chart of a transmission method 200 according to embodiments of the present disclosure is shown;

[0108] Figure 3 A time domain schematic diagram 300 for terminal device transmission according to embodiments of the present disclosure is shown;

[0109] Figure 4Another time-domain diagram 400 for terminal device transmission according to embodiments of the disclosure is shown;

[0110] Figure 5 Yet another time-domain diagram 500 for terminal device transmission according to embodiments of the disclosure is shown;

[0111] Figure 6 One time-domain diagram 600 for transmission of PUSCH according to embodiments of the disclosure is shown;

[0112] Figure 7 Another time-domain diagram 700 for transmission of PUSCH according to embodiments of the disclosure is shown;

[0113] Figure 8 Another schematic flow chart of a transmission method 800 according to embodiments of the disclosure is shown;

[0114] Figure 9 Another schematic flow chart of a transmission method 900 according to embodiments of the disclosure is shown;

[0115] Figure 10 One schematic block diagram of a communication apparatus 1000 according to embodiments of the disclosure is shown;

[0116] Figure 11 Another schematic block diagram of a communication apparatus 1100 according to embodiments of the disclosure is shown;

[0117] Figure 12 Yet another schematic block diagram of a communication apparatus 1200 according to embodiments of the disclosure is shown;

[0118] Figure 13 A simplified block diagram of an example apparatus 1300 according to embodiments of the disclosure is shown. DETAILED DESCRIPTION

[0119] Embodiments of the disclosure will be described in more detail with reference to the drawings. While certain embodiments of the disclosure will be shown in the drawings and described below, it will be understood that the disclosure can be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the disclosure to those skilled in the art.

[0120] In the description of embodiments of the disclosure, the term "includes" and its conjugates are to be read open-ended, i.e., "includes but is not limited to." The term "based on" is to be read as "based at least in part on." The term "one embodiment" or "an embodiment" are to be read as "at least one embodiment." The term "another embodiment" or "a further embodiment" are to be read as "at least one other embodiment." The term "first," "second," etc. can refer to different or same objects.

[0121] Embodiments of the disclosure can be implemented according to any appropriate communication protocol, including but not limited to cellular communication protocols such as 3rd Generation (3G), 4th Generation (4G), and 5th Generation (5G), wireless local area network communication protocols such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, and / or any other protocol now known or later developed.

[0122] The technical solutions of embodiments of the disclosure are applied to a communication system complying with any appropriate communication protocol, for example, General Packet Radio Service (GPRS), Global System for Mobile Communications (GSM), Enhanced Data rates for GSM Evolution (EDGE), Universal Mobile Telecommunications Service (UMTS), Long Term Evolution (LTE) system, Wideband Code Division Multiple Access (WCDMA) system, Code Division Multiple Access 2000 (CDMA2000) system, Time Division-Synchronization Code Division Multiple Access (TD-SCDMA) system, Frequency Division Duplex (FDD) system, Time Division Duplex (TDD) system, 5th Generation (5G) system or New Radio (NR), etc.

[0123] For illustrative purposes, embodiments of the present disclosure are described below in the context of a 5G Third Generation Partnership Project (3GPP) communication system. However, it should be appreciated that embodiments of the present disclosure are not limited to be applied to the 5G 3GPP communication system, but can be applied to any communication system in which similar problems exist, such as a wireless local area network (WLAN), a wired communication system, or other communication systems developed in the future, etc.

[0124] The term "terminal device" used in the present disclosure refers to any terminal device capable of performing wired or wireless communication with a network device or between each other. The terminal device can sometimes be referred to as a user equipment (UE). The terminal device can be any type of mobile terminal, fixed terminal, or portable terminal. As an example, the terminal device can include a mobile phone, a station, a unit, a device, a mobile terminal (MT), a subscription station, a portable subscription station, an Internet node, a communicator, a desktop computer, a laptop computer, a notebook computer, a tablet computer, a personal communication system device, a personal navigation device, a personal digital assistant (PDA), a positioning device, a radio broadcast receiver, an electronic book device, a game device, an Internet of Things (IoT) device, a vehicle-mounted device, an aircraft, a virtual reality (VR) device, an augmented reality (AR) device, a wearable device, a terminal device in a 5G network, or any terminal device in an evolved public land mobile network (PLMN), other devices that can be used for communication, or any combination of the above. Embodiments of the present disclosure are not limited thereto.

[0125] The term "access network device" used in this disclosure is an entity or node that can be used to communicate with a terminal device. The access network device can be an apparatus deployed in a wireless access network to provide wireless communication functions for mobile terminals, for example, can be a Radio Access Network (RAN) network device. The access network device can include various types of base stations. As an example, the access network device can include various forms of macro base stations, micro base stations, pico base stations, femto base stations, relay stations, access points, Remote Radio Units (RRUs), Radio Heads (RHs), Remote Radio Heads (RRHs), and the like. In systems employing different wireless access technologies, the name of the access network device can be different, for example, in a Long Term Evolution (LTE) network it is called an evolved NodeB (eNB or eNodeB), in a 3G network it is called a NodeB (NB), in a 5G network it can be called a gNodeB (gNB) or NR NodeB (NR NB), and the like. In some scenarios, the access network device can contain a Central Unit (CU) and / or a Distributed Unit (DU). The CU and the DU can be placed in different places, for example: the DU is pulled away and placed in a high traffic area, and the CU is placed in a central machine room. Alternatively, the CU and the DU can also be placed in the same machine room. The CU and the DU can also be different components under one rack. For the convenience of description, in the subsequent embodiments of this disclosure, the above-mentioned apparatuses providing wireless communication functions for mobile terminals are collectively referred to as access network devices, and the embodiments of this disclosure are not specifically limited.

[0126] The term "Joint Channel Estimation (JCE)" used in the present disclosure can be used to implement Coverage Enhancement (CE). Joint Channel Estimation can be used between Physical Uplink Shared Channels (PUSCHs), or can be used between Physical Uplink Control Channels (PUCCHs), or can be used between PUSCH and PUCCH, or can be used between other uplink transmissions. Joint Channel Estimation can be used between once scheduled or different times scheduled repetitions, or can be used between different schedules. Joint Channel Estimation can be performed on a Time Domain Window (TW) across several slots or symbols, and the condition for performing Joint Channel Estimation is to maintain the continuity of phase and consistency of transmit power. Joint Channel Estimation can also be referred to as "Cross-Slot Channel Estimation" or "Demodulation Reference Signal bundling (DMRS bundling)", etc. For the convenience of description, in the subsequent embodiments of the present disclosure, the description is based on "Joint Channel Estimation".

[0127] The term "slot" used in the present disclosure is a time unit of data scheduling. In a wireless communication system (such as 5G NR), there are various scheduling time units, for example, frame, subframe, slot, and symbol, etc. Generally, the time length of a frame is 10 ms, including 10 subframes, and the time length of each subframe is 1 ms. Each subframe is composed of several slots. In the normal cyclic prefix, a slot includes 14 symbols; in the extended cyclic prefix, a slot includes 12 symbols. The symbol can be an Orthogonal Frequency Division Multiplexing (OFDM) symbol. It should be noted that the slot in the embodiments of the present disclosure can be a slot containing 14 symbols, or a mini-slot, which will not be distinguished in particular hereinafter.

[0128] The term "repetition" used in the present disclosure can be the number of times of repeated transmission for PUSCH and / or PUCCH transmission. The repetition can be a repetition factor, a number of repetitions, a number of repeated transmission slots, etc., which is configured by Radio Resource Control (RRC) or by Downlink Control Information (DCI). For PUSCH, there are two repetition types: repetition type A and repetition type B. In repetition type A, a repetition is transmitted once per slot, and occupies the same number of consecutive symbols per slot. In repetition type A, the repetition factor configured by RRC or DCI is equal to the number of repetitions, and is also equal to the number of repeated transmission slots. In repetition type B, the repetition factor configured by RRC or DCI refers to the number of nominal repetitions, each nominal repetition has the same number of allocated symbols in time domain, and the time domain resources of adjacent nominal repetitions are consecutive. A nominal repetition can also be referred to as a nominal repetition. Since the transmission of repetition type B cannot use invalid symbols and cannot cross slot boundaries, a nominal repetition of repetition type B needs to be split into actual repetitions around invalid symbols or slot boundaries when encountering invalid symbols or slot boundaries. For PUCCH, there is one repetition type, and the repetition of PUCCH is similar to repetition type A of PUSCH.

[0129] The term "Transmission Occasion (TO)" used in the present disclosure is a representation in time domain. For PUSCH repetition type A or for PUCCH repetition, a TO can be the time domain resource occupied by one repetition, for example, one slot. For PUSCH repetition type B, a TO can be the time domain resource occupied by one actual repetition, or can be one slot.

[0130] In the current wireless communication system, the terminal device needs to determine the transmission power before uplink transmission. However, in the current scheme, the terminal device does not consider factors such as joint channel estimation when determining the transmission power, resulting in low accuracy of the determined transmission power, which affects the efficiency of uplink transmission.

[0131] Embodiments of the present disclosure provide a transmission scheme. In the scheme, the terminal device can determine the transmission power based on a time domain window, so that the determined transmission power is more accurate, ensuring the efficiency of uplink transmission. The following describes the scheme through Figures 1 to 8Embodiments according to the present disclosure are described in more detail.

[0132] Figure 1 A schematic diagram illustrating a communication system 100 in which embodiments of the present disclosure can be implemented is shown. As shown, the system 100 includes an access network device 110 and a terminal device 120, and communication can be conducted between the access network device 110 and the terminal device 120. Figure 1

[0133] The access network device 110 can configure the terminal device 120 with high layer signaling, where the high layer signaling refers to signaling issued by at least one protocol layer above the physical layer. For example, the high layer protocol layer can include at least one of the following protocol layers: Medium Access Control (MAC) layer, Radio Link Control (RLC) layer, Packet Data Convergence Protocol (PDCP) layer, Radio Resource Control (RRC) layer, Non Access Stratum (NAS) and the like.

[0134] Figure 2 A schematic flow chart illustrating a transmission method 200 according to an embodiment of the present disclosure is shown. For example, the method 200 can be implemented at the terminal device 120 as shown. Figure 1 For ease of understanding, the transmission method 200 is described below by taking the terminal device 120 as an example, but this is merely exemplary and is not intended to limit the embodiments of the present disclosure in any way.

[0135] The method 200 starts at block 210. At 210, the terminal device 120 determines a power control adjustment state at a current transmission occasion based on a time domain window before the current transmission occasion, where the time domain window includes at least two transmission occasions.

[0136] It can be understood that the current transmission occasion is a transmission occasion that needs to be power controlled to re-determine the transmission power. Generally, the time domain window can cover at least two transmission occasions, and power control is needed at the starting transmission occasion of the time domain window.

[0137] ​In this embodiment of the disclosure, at least two transmission opportunities within the time-domain window may have the same transmission characteristic information, wherein the same transmission characteristic information includes at least one of the following: the same Transmitted Precoding Matrix Indicator (TPMI) precoder, the same transmit power, the same frequency domain resource occupancy (such as Physical Resource Block (PRB)), phase continuity, the same antenna port, etc.

[0138] For example, having the same transmit power at least two transmission opportunities within a time window means that no power control or adjustment is performed at non-initial transmission opportunities within the time window, so that the transmit power of each transmission opportunity within the time window is equal.

[0139] In this embodiment, the time-domain window can be used for joint channel estimation, or for other scenarios where the transmit power remains constant within the time-domain window. In this embodiment, the time-domain window can also be referred to as a time window, joint transmission timing, constant transmission timing, or others. In this embodiment, the power control adjustment value can also be referred to as a power control adjustment state value, power control adjustment state parameter, power control adjustment state item, power control adjustment state, power control adjustment parameter, or others; this disclosure is not limited in this regard.

[0140] Figure 3 A time-domain schematic diagram 300 for transmission by a terminal device according to an embodiment of the present disclosure is shown. Figure 3 The diagram shows a time-domain window 310, which includes four time points (TOs), designated TO1 to TO4. It can be understood that the initial transmission timing of time-domain window 310 is TO1 301, and the current transmission timing after time-domain window 310 is TO5 302. In other words, the initial transmission timing 301 is the first TO within time-domain window 310, while the current transmission timing 302 is the first TO after time-domain window 310.

[0141] In some examples, the current transmission timing can be the start of a transmission in another time-domain window following the current time-domain window. For example... Figure 3 As shown, time-domain window 310 is followed by time-domain window 320, which includes four time points (TOs), namely TO5 to TO8. The current transmission timing TO5 is after time-domain window 310, and the current transmission timing TO5 is the starting transmission timing of time-domain window 320.

[0142] Understandably, in some embodiments, a TO can correspond to a time slot, such as in a scenario where PUSCH repeats type A.

[0143] Figure 4 Another time-domain diagram 400 for terminal device transmission is shown according to an embodiment of the present disclosure. In Figure 4 , a time-domain window 410 is shown, and includes 4 TOs, TO1 to TO4. It can be understood that the starting transmission occasion of the time-domain window 410 is TO1, and the current transmission occasion after the time-domain window 410 is TO5. In addition, as Figure 4 shown, there is also an interruption time-domain resource 420 after the time-domain window 410 and before the current transmission occasion TO5.

[0144] In some examples, the length of the interruption time-domain resource 420 can be 1 or more slots, or can be 1 or more symbols, and the like. In one case, if there is a period of time after the time-domain window 410 during which no uplink transmission is needed, then this period of time constitutes the interruption time-domain resource 420, that is, the interruption time-domain resource 420 is not scheduled for transmission of the current terminal device. In another case, if the joint channel estimation process is interrupted due to some factors, then the interrupted time constitutes the interruption time-domain resource 420.

[0145] For example, for a configured nominal time-domain window, the nominal time-domain window can be interrupted due to some factors, so that one nominal time-domain window is broken into at least two actual time-domain windows. Such factors include, but are not limited to, dynamic slot format indication (SFI), uplink cancellation indication (UL CI), channel preemption of different priorities, timing adjustment (such as timing advance command (TA command) or timing advance change (TA change)), frequency offset correction, carrier aggregation (CA), dual connectivity (DC), and the like.

[0146] It should be noted that although the nominal time-domain window and the actual time-domain window are mentioned in the present disclosure, the nominal time-domain window and the actual time-domain window are distinguished in order to introduce the interruption time-domain resource. Both the nominal time-domain window and the actual time-domain window can be time-domain windows for joint channel estimation.

[0147] Figure 5 Another time-domain diagram 500 for terminal device transmission is shown according to an embodiment of the present disclosure. In Figure 5In the embodiment, the nominal time domain window 510 is broken into an actual time domain window 511 and an actual time domain window 512, and the actual time domain window 511 and the actual time domain window 512 are interrupted by the interrupted time domain resource 520.

[0148] For the time domain window 511, the starting transmission occasion is at Figure 5 In the embodiment, the starting transmission occasion 501 of the time domain window 511, the current transmission occasion after the time domain window 511 is at Figure 5 In the embodiment, the current transmission occasion 502. It can be seen that, between the starting transmission occasion 501 and the current transmission occasion 502, in addition to the time domain window 511, the interrupted time domain resource 520 which is not used for joint channel estimation is also included.

[0149] In the embodiment of the present disclosure, the time domain window in 210 can refer to an actual time domain window. It can be understood that the current transmission occasion in the embodiment of the present disclosure can be the starting transmission occasion of the next time domain window of the time domain window in 210, or can be other transmission occasion of a non-time domain window. And it should be understood that although the time domain window in 210 includes at least two transmission occasions, the next time domain window located after the time domain window can include one or more transmission occasions. For example, in Figure 3 In the embodiment, the time domain window in which the current transmission occasion is located includes 4 transmission occasions. For another example, in Figure 5 In the embodiment, the time domain window in which the current transmission occasion is located includes 1 transmission occasion. In other words, the scenario applicable to the embodiment of the present disclosure can be that the power of the previous transmission occasion (or the previous transmission occasion) of the current transmission occasion has not changed, such as no power update or no power update calculation or the unchanged power determined by re-determination. More specifically, as an example, in the scenario of joint channel estimation, the previous transmission occasion of the current transmission occasion belongs to the non-starting transmission occasion of the time domain window for joint channel estimation.

[0150] In an implementation manner, the transmission to be performed by the terminal device 120 is PUSCH, and the power control adjustment value determined in 210 is a PUSCH power control adjustment value.

[0151] For the following description, it is assumed that the terminal device 120 performs PUSCH transmission on the carrier f of the active uplink bandwidth part (active UL BWP) b of the serving cell c, and the PUSCH power control adjustment value in the state l on the transmission occasion i is denoted as f b,f,c (i, l).

[0152] In some embodiments, if the terminal device 120 is not configured with a Transmission Power Control (TPC) accumulation (tpc-Accumulation) parameter, at 210, the terminal device 120 can determine the power control adjustment value at the current transmission occasion based on an initial power control adjustment value of a starting transmission occasion of the time domain window and an accumulation of first parameter values in all DCIs received between a first time associated with the starting transmission occasion and a second time associated with the current transmission occasion.

[0153] Specifically, the terminal device 120 can obtain an initial power control adjustment value of a starting transmission occasion of the time domain window; determine an accumulation of first parameter values in all DCIs received between a first time associated with the starting transmission occasion and a second time associated with the current transmission occasion; determine the power control adjustment value at the current transmission occasion based on the initial power control adjustment value and the accumulation.

[0154] In the embodiments of the present disclosure, the TPC accumulation parameter can be configured or provided by higher layer signaling, and when the terminal device 120 is not provided with the TPC accumulation parameter, the power control adjustment value at the current transmission occasion can be determined based on the initial power control adjustment value of the starting transmission occasion.

[0155] Exemplarily, the initial power control adjustment value of the starting transmission occasion of the time domain window can be denoted as f b,f,c (i-i0,l), which can be determined when determining the transmit power of the starting transmission occasion.

[0156] Exemplarily, the first parameter value can be a TPC accumulation value in the DCI corresponding to the TPC command field parameter, specifically a TPC accumulation value for PUSCH. In some examples, the first parameter value can be indicated by a TPC command field in a DCI format scheduling the PUSCH transmission, as shown in Table 1 below. In other examples, the first parameter value can be indicated by a DCI format 2_2 scrambled by a Transmission Power Control-Physical Uplink Shared Channel-Radio Network Temporary Identifier (TPC-PUSCH-RNTI) through a Cyclic Redundancy Check (CRC).

[0157] Table 1

[0158] TPC command field TPC accumulated value for PUSCH [dB] 0 -1 1 0 2 1 3 3

[0159] Exemplarily, the first parameter value for PUSCH can be denoted as δ PUSCH，b,f,c,(i), and further represent the accumulation of the first parameter value in all DCIs received between the first time instance associated with the starting transmission occasion and the second time instance associated with the current transmission occasion as a sum of TPC accumulations in the set D i , wherein the set D i is determined based on the first time instance and the second time instance.

[0160] The first time instance associated with the starting transmission occasion can be the first S1 symbols before the starting transmission occasion. That is, the first time instance is located before the starting transmission occasion, and the first time instance can be spaced apart from the starting transmission occasion by S1 symbols. In other words, the first time instance is the first S1 symbols before the starting transmission occasion. For example, the first time instance can be the first K PUSCH (i-i0)-1 symbols before the starting transmission occasion i-i0, i.e., S1=K PUSCH (i-i0)-1.

[0161] The second time instance associated with the current transmission occasion can be the first S2 symbols before the current transmission occasion. That is, the second time instance is located before the current transmission occasion, and the second time instance can be spaced apart from the current transmission occasion by S2 symbols. In other words, the second time instance is the first S2 symbols before the current transmission occasion. For example, the second time instance can be the first K PUSCH (i) symbols before the current transmission occasion i, i.e., S2=K PUSCH (i).

[0162] It can be understood that i0>0, and i0 is the smallest integer such that the first K PUSCH (i-i0)-1 symbols of the PUSCH transmission occasion i-i0 are earlier than the first K PUSCH (i) symbols of the PUSCH transmission occasion i, and i-i0 is the first transmission occasion of the time domain window, also referred to as the starting transmission occasion.

[0163] In some examples, K PUSCH (i) can be determined in the following way. If the PUSCH transmission is scheduled by a DCI, then K PUSCH (i) is the number of symbols between the last symbol of a physical downlink control channel (PDCCH) corresponding to the DCI and the first symbol of the scheduled PUSCH transmission.

[0164] In other examples, K PUSCH(i). If the PUSCH transmission is configured by RRC, such as by "ConfiguredGrantConfig" or the like, K PUSCH (i) is the number of symbols, which can be equal to the number of symbols per slot PUSCH，min (i) is the number of symbols, which can be equal to the number of symbols per slot (e.g. 12 or 14) and the minimum value indicated by the k2 field in the PUSCH-ConfigCommon field.

[0165] It can be understood that the manner of determining K PUSCH (i-i0)-1 is similar to the manner of determining K PUSCH (i), and thus is not repeated here.

[0166] In the embodiments of the present disclosure, the accumulation of the first parameter value is the accumulation of all the first parameter values between the first time and the second time. The accumulation can be determined at one time, or can be determined respectively for each transmission occasion and then accumulated.

[0167] Figure 6 One time-domain diagram 600 for transmission of PUSCH is shown according to the embodiments of the present disclosure. In Figure 6 , the PUSCH scheduled by the DCI 0_x contains 8 repeated transmissions, each of which is a transmission occasion, and is TO1 to TO8 respectively. Figure 6 Two time-domain windows are shown in Figure 6 , respectively time-domain window 601 and time-domain window 602, each of which contains 4 TOs. In addition, the first time associated with the starting transmission occasion TO1 of the time-domain window 601 is shown in Figure 6 as the first time 610, specifically, the Kth symbol before the starting transmission occasion TO1. The second time associated with the current transmission occasion TO5 after the time-domain window 601 is shown in Figure 6 as the second time 620, specifically, the Kth symbol before the current transmission occasion TO5. The accumulation of the first parameter value from the first time to the second time can be obtained at one time, such as in

[0168] Figure 7 Another time-domain diagram 700 for transmission of PUSCH is shown according to the embodiments of the present disclosure. Similar to Figure 6 , two time-domain windows are shown in Figure 7 , respectively time-domain window 701 and time-domain window 702, each of which contains 4 TOs. In addition, the first time associated with the starting transmission occasion TO1 of the time-domain window 701 is shown in Figure 7The first time point 710 is shown in the diagram, and the second time point associated with the current transmission timing TO5 after time window 701 is shown in the diagram. Figure 7 The second time point is shown as 720. The accumulation of the first parameter values ​​from the first time point to the second time point can be determined separately for each transmission timing and then accumulated.

[0169] Specifically, in Figure 7 In the time-domain window 701, there are four transmission opportunities, namely TO1 to TO4. The first accumulation of the first parameter values ​​between the first time point associated with transmission opportunity TO1 and the third time point associated with transmission opportunity TO2 can be determined, denoted as ∑δ1. The second accumulation of the first parameter values ​​between the third time point associated with transmission opportunity TO2 and the fourth time point associated with transmission opportunity TO3 can be determined, denoted as ∑δ2. The third accumulation of the first parameter values ​​between the fourth time point associated with transmission opportunity TO3 and the fifth time point associated with transmission opportunity TO4 can be determined, denoted as ∑δ3. The fourth accumulation of the first parameter values ​​between the fifth time point associated with transmission opportunity TO4 and the second time point associated with transmission opportunity TO5 can be determined, denoted as ∑δ4. Further, based on the first, second, third, and fourth accumulations, the accumulation of the first parameter values ​​from the first time point to the second time point is obtained, denoted as ∑δ=∑δ1+∑δ2+∑δ3+∑δ4.

[0170] For non-initial transmission opportunities within the time window, the transmit power is not updated to maintain power consistency (i.e., transmit power remains constant) within the time window. During such non-initial transmission opportunities, the power control adjustment value can be updated, but this updated power control adjustment value is not used to determine the transmit power during the non-initial transmission opportunity.

[0171] Reference Figure 7 Assuming the initial power control adjustment value for the start of transmission at time window 701, TO1, is denoted as f1, then the power control adjustment value for transmission at time window TO2, denoted as f2, can be determined based on f1 and the first accumulated ∑δ1. Similarly, the power control adjustment value for transmission at time window TO3, denoted as f3, can be determined based on f2 and the second accumulated ∑δ2. The power control adjustment value for transmission at time window TO4, denoted as f4, can be determined based on f3 and the third accumulated ∑δ3. Thus, even for non-starting transmission times within time window 701, the corresponding power control adjustment value is determined. It should be noted that although the power control adjustment values ​​for transmission times TO2, TO3, and TO4 are determined, the transmit power for transmission times TO2, TO3, and TO4 is determined based on f1, which ensures power consistency within time window 701.

[0172] Further, the manner of determining the power control adjustment value of the current transmission occasion TO5 can be: determining the power control adjustment value of the current transmission occasion TO5 based on the power control adjustment value f4 of the transmission occasion TO4 and the fourth accumulation ∑δ4, denoted as f5. It can be understood that since the current transmission occasion TO5 no longer belongs to the same time domain window, the power needs to be updated at the current transmission occasion TO5, and therefore when determining the transmission power of the current transmission occasion TO5, the updated power control adjustment value f5 is used instead of f1.

[0173] In this way, the accumulation of the first parameter values in all the DCIs received between the first time associated with the starting transmission occasion and the second time associated with the current transmission occasion can be obtained. Further, in the embodiments of the present disclosure, the power control adjustment value of the current transmission occasion can be determined based on the initial power control adjustment value f b，f，c (i-i0, l) and the accumulation of the first parameter values in all the DCIs received between the first time and the second time determining the power control adjustment value f b，f，c (i, l) of the current transmission occasion.

[0174] Specifically, if (1) the transmission power of the starting transmission occasion i-i0 is the maximum transmission power and or (2) the transmission power of the starting transmission occasion i-i0 is the minimum transmission power and f b，f，c (i, l) = f b，f，c (i-i0, l). Otherwise, the sum of the initial power control adjustment value and the accumulation of the first parameter values is taken as the power control adjustment value of the current transmission occasion, denoted as:

[0175]

[0176] In some other embodiments, if the terminal device 120 is configured with a transmission power control, TPC, accumulation (tpc-Accumulation) parameter, at 210, the terminal device 120 can determine a scaling factor based on the time domain window; obtain a second parameter value corresponding to a TPC command field parameter in the DCI from the access network device; and determine the power control adjustment value at the current transmission occasion based on the second parameter value and the scaling factor.

[0177] In the embodiments of the present disclosure, the TPC accumulation parameter can be configured or provided through high layer signaling, and when the terminal device 120 is provided with the TPC accumulation parameter, the power control adjustment value at the current transmission occasion can be determined based on the scaling factor and the second parameter value.

[0178] Exemplarily, the second parameter value can be a TPC absolute value in the DCI corresponding to the TPC command field (TPC command field) parameter. That is, the second parameter value can be indicated by a TPC command field in a DCI format scheduling the PUSCH transmission, as shown in Table 2 below. Exemplarily, the second parameter value can be denoted as δ' PUSCH,b,f,c (i, l).

[0179] Table 2

[0180] TPC command field TPC absolute value [dB] 0 -4 1 -1 2 1 3 4

[0181] The scaling factor can be determined based at least in part on an interval length, where the interval length is a total length between the starting transmission occasion and the current transmission occasion of the time domain window or a length of the time domain window.

[0182] Exemplarily, the length in the embodiments of the present disclosure represents a time domain length, which can be at least one of the following: a number of slots, a number of symbols, a number of transmission occasions, a number of repetitions, and the like, where the number of repetitions can be a nominal number of repetitions or an actual number of repetitions, and the like, which are not limited by the present disclosure.

[0183] In some examples, the total length between the starting transmission occasion and the current transmission occasion of the time domain window can be equal to the length of the time domain window. Alternatively, in a case where no interruption time domain resource is included between the starting transmission occasion and the current transmission occasion, the total length between the starting transmission occasion and the current transmission occasion is equal to the length of the time domain window. Referring to Figure 3 , the total length or the length is equal to 4 slots or 4 TOs.

[0184] In other examples, the total length between the starting transmission occasion and the current transmission occasion of the time domain window can not be equal to the length of the time domain window. Alternatively, in a case where an interruption time domain resource not used for joint channel estimation is included between the starting transmission occasion and the current transmission occasion, the total length between the starting transmission occasion and the current transmission occasion can not be equal to the length of the time domain window. Referring to Figure 5 , the total length between the starting transmission occasion 501 and the current transmission occasion 502 is 3 slots, while the length of the time domain window 511 between the starting transmission occasion 501 and the current transmission occasion 502 is 2 slots.

[0185] In some examples, the total length between the starting transmission occasion and the current transmission occasion of the time domain window or the length of the time domain window can be taken as the interval length, and the interval length can be taken as the scaling factor. Specifically, a dimensionless value of the interval length after de-dimensioning can be taken as the scaling factor.

[0186] For example, referring to Figure 3For example, if the total length between the starting transmission occasion and the current transmission occasion of the time domain window is 4 slots, the scaling factor can be equal to 4. For another example, referring to FIG. 4, if the total length between the starting transmission occasion and the current transmission occasion of the time domain window is 3 slots, the scaling factor can be equal to 3. For another example, referring to FIG. 5, if the length of the time domain window is 2 slots, the scaling factor can be equal to 2. Figure 5 For example, if the total length between the starting transmission occasion and the current transmission occasion of the time domain window is 4 slots, the scaling factor can be equal to 4. For another example, referring to FIG. 4, if the total length between the starting transmission occasion and the current transmission occasion of the time domain window is 3 slots, the scaling factor can be equal to 3. For another example, referring to FIG. 5, if the length of the time domain window is 2 slots, the scaling factor can be equal to 2. Figure 5 For example, if the total length between the starting transmission occasion and the current transmission occasion of the time domain window is 4 slots, the scaling factor can be equal to 4. For another example, referring to FIG. 4, if the total length between the starting transmission occasion and the current transmission occasion of the time domain window is 3 slots, the scaling factor can be equal to 3. For another example, referring to FIG. 5, if the length of the time domain window is 2 slots, the scaling factor can be equal to 2.

[0187] In some examples, the total length between the starting transmission occasion and the current transmission occasion of the time domain window or the length of the time domain window can be taken as the interval length, and a scaling factor corresponding to the interval length can be obtained based on a corresponding relationship between interval lengths and scaling factors, wherein the corresponding relationship is configured by the RRC of the access network device or predefined.

[0188] For example, the access network device 110 can configure the corresponding relationship between the interval length and the scaling factor through the RRC, and then the terminal device 120 can determine the scaling factor corresponding to the interval length based on the corresponding relationship.

[0189] For example, the interval length and the scaling factor can have a one-to-one correspondence, such as the interval length being 3 and the scaling factor being X1, or the interval length being 2 and the scaling factor being X2. For another example, the interval length and the scaling factor can have a many-to-one correspondence, such as the interval length being 3 and 4 and the scaling factor being X1, or the interval length being 1 and 2 and the scaling factor being X2. For another example, the interval length and the scaling factor can be a corresponding relationship between intervals and discrete values, such as the interval length interval (0, 2] corresponding to the scaling factor X1. It can be understood that the corresponding relationship between the interval length and the scaling factor can also be in other forms, which are not listed here.

[0190] In some examples, the total length between the starting transmission occasion and the current transmission occasion of the time domain window or the length of the time domain window can be taken as the interval length, a scaling factor from the RRC signaling or DCI of the access network device or predefined can be obtained, and the scaling factor corresponding to the interval length can be determined based on the interval length and the scaling factor.

[0191] For example, the access network device 110 can configure a scaling factor through the RRC or through the DCI. For another example, the access network device 110 can configure multiple scaling factors through the RRC, and one of the multiple scaling factors can be indicated by the DCI or the MAC-CE. For example, the product of the interval length and the scaling factor can be taken as the scaling factor. Specifically, the product of the dimensionless value of the interval length after de-dimensioning and the scaling factor can be taken as the scaling factor.

[0192] In this way, the scaling factor can be determined based on the interval length by the above manner, and further, the power control adjustment value at the current transmission occasion can be determined based on the scaling factor and the second parameter value. Exemplarily, the product of the second parameter value and the scaling factor can be taken as the power control adjustment value at the current transmission occasion.

[0193] Specifically, the scaling factor is denoted as β, then the power control adjustment value at the current transmission occasion can be determined by f b,f,c (i, l) = β × δ' PUSCH,b,f,c (i, l), to obtain the power control adjustment value at the current transmission occasion.

[0194] In the embodiments of the present disclosure, the scaling factor can also be referred to as an adjustment factor or a power control adjustment factor or other names, etc., and the scaling factor can be used to adjust the TPC command adjustment value to determine the power control adjustment value.

[0195] In this way, in the embodiments of the present disclosure, the power control adjustment value at the current transmission occasion is determined based on both the scaling factor and the second parameter value, which is determined based on the interval length and takes into account the time-domain span between two power controls, thereby ensuring the communication performance and better adapting to the actual required power adjustment range.

[0196] In some other embodiments, if the terminal device 120 is configured with a transmission power control TPC accumulation (tpc-Accumulation) parameter, then at 210, the terminal device 120 can obtain an interval length, where the interval length is the total length between the starting transmission occasion of the time-domain window and the current transmission occasion or the length of the time-domain window; obtain a TPC command field parameter in the DCI from the access network device; and determine a power control adjustment value at the current transmission occasion based on the interval length and the TPC command field parameter.

[0197] The interval length can refer to the related description in the above embodiments, which will not be repeated here for brevity.

[0198] In some examples, the TPC command field can occupy 2 bits, and accordingly, the TPC command field parameter is any value from 0 to 3. In some other examples, the TPC command field can occupy 3 bits, and accordingly, the TPC command field parameter is any value from 0 to 7.

[0199] Exemplarily, determining the power control adjustment value at the current transmission occasion based on the interval length and the TPC command field parameter can include: determining a TPC absolute value corresponding to the interval length and the TPC command field parameter, and taking the TPC absolute value as the power control adjustment value at the current transmission occasion.

[0200] As an example, as shown in Table 3, a row of TPC absolute values can be determined based on the TPC command field parameter, and a column of TPC absolute values can be determined based on the interval length, so that the TPC absolute value can be determined based on both the TPC command field parameter and the interval length.

[0201] In the embodiments of the present disclosure, different TPC absolute values can be applicable for different interval lengths. For example, in Table 3, when the interval length is 3, the corresponding TPC absolute values are -8, -2, 2, and 8. When the interval length is 2, the corresponding TPC absolute values are -6, -1, 1, and 6.

[0202] Table 3

[0203]

[0204] It should be noted that Table 3 is only illustrative. One or more interval lengths can correspond to a column of TPC absolute values. For example, the interval length of 3 or 4 can correspond to the 2nd column of Table 3, and the interval length of 1 or 2 can correspond to the 3rd column of Table 3. Alternatively, an interval of interval lengths can correspond to a column of TPC absolute values. For example, the interval length in the interval (2, 4] can correspond to the 2nd column of Table 3, and the interval length in the interval (0, 2] can correspond to the 3rd column of Table 3. Alternatively, the TPC absolute values can include more or fewer columns.

[0205] In this way, in the embodiments of the present disclosure, the power control adjustment value of the current transmission occasion is determined based on the interval length and the like, which can better adapt to the amplitude of the actual required power adjustment, considers the time domain span between two power controls, and ensures the communication performance. In addition, the extension of the TPC command field is optionally considered, and a certain flexibility is provided.

[0206] In another implementation manner, the uplink transmission to be performed by the terminal device 120 is a PUCCH, and the power control adjustment value determined at 210 is a PUCCH power control adjustment value.

[0207] For the following description, it is assumed that the terminal device 120 performs PUCCH transmission on the carrier f of the active uplink bandwidth part (active UL BWP) b of the serving cell c, and the PUCCH power control adjustment value in the state l at the transmission occasion i is denoted as g b,f,c (i, l).

[0208] Specifically, at 210, the terminal device 120 can determine the power control adjustment value at the current transmission occasion based on an initial power control adjustment value of a starting transmission occasion of the time domain window and an accumulation of first parameter values in all DCIs received between a first time associated with the starting transmission occasion and a second time associated with the current transmission occasion.

[0209] Specifically, the terminal device 120 can obtain an initial power control adjustment value of a starting transmission occasion of the time domain window; determine an accumulation of first parameter values in all DCIs received between a first time associated with the starting transmission occasion and a second time associated with the current transmission occasion; determine the power control adjustment value at the current transmission occasion based on the initial power control adjustment value and the accumulation.

[0210] In the embodiments of the present disclosure, the TPC accumulation parameter can be configured or provided by high layer signaling, and when the terminal device 120 is not provided with the TPC accumulation parameter, the power control adjustment value at the current transmission occasion can be determined based on the initial power control adjustment value of the starting transmission occasion.

[0211] Exemplarily, the initial power control adjustment value of the starting transmission occasion of the time domain window can be denoted as g b,f,c (i-i0,l), which can be determined when determining the transmission power of the starting transmission occasion.

[0212] Exemplarily, the first parameter value can be a TPC accumulation value in the DCI corresponding to the TPC command field parameter, specifically a TPC accumulation value for PUCCH. In some examples, the first parameter value can be indicated by a TPC command field in a DCI format scheduling a physical downlink shared channel (PDSCH) transmission corresponding to the PUCCH, as shown in Table 4 below. In other examples, the first parameter value can be indicated by a DCI format 22 scrambled by transmission power control-physical uplink shared channel-radio network temporary identifier (TPC-PUSCH-RNTI) through cyclic redundancy check (CRC).

[0213] Table 4

[0214] TPC command field TPC accumulated value for PUCCH [dB] 0 -1 1 0 2 1 3 3

[0215] Exemplarily, the first parameter value for PUCCH can be denoted as δ PUCCH，b，f，c(m, 1), and further represent the accumulation of the first parameter value in all DCIs received between the first time instance associated with the starting transmission occasion and the second time instance associated with the current transmission occasion as a sum of TPC accumulations in a set C i , wherein the set C i is determined based on the first time instance and the second time instance.

[0216] The first time instance associated with the starting transmission occasion can be the S11th symbol before the starting transmission occasion. That is, the first time instance is located before the starting transmission occasion, and the first time instance can be spaced apart from the starting transmission occasion by S11 symbols. In other words, the first time instance is the S11th symbol before the starting transmission occasion. For example, the first time instance can be the K PUCCH (i-i0)-1th symbol before the starting transmission occasion i-i0, i.e., S11=K PUCCH (i-i0)-1.

[0217] The second time instance associated with the current transmission occasion can be the S12th symbol before the current transmission occasion. That is, the second time instance is located before the current transmission occasion, and the second time instance can be spaced apart from the current transmission occasion by S12 symbols. In other words, the second time instance is the S12th symbol before the current transmission occasion. For example, the second time instance can be the K PUCCH (i)th symbol before the current transmission occasion i, i.e., S12=K PUCCH (i).

[0218] It can be understood that i0>0, and i0is the smallest integer such that the K PUCCH (i-i0)-1th symbol before the PUCCH transmission occasion i-i0is earlier than the K PUCCH (i)th symbol before the PUCCH transmission occasion i, and i-i0is the first transmission occasion of the time domain window, which can also be referred to as the starting transmission occasion of the time domain window.

[0219] In some examples, K PUCCH (i) can be determined in the following way. If the PUCCH transmission is in response to a detected DCI format, then K PUCCH (i) is the number of symbols between the last symbol of the PDCCH corresponding to the DCI and the first symbol of the corresponding PUCCH transmission.

[0220] In other examples, K PUCCH (i) can be determined in the following way. If the PUCCH transmission is not in response to a detected DCI format, then K PUCCH (i) is K PUCCH，mina number of symbols, which can be equal to a number of symbols per slot a product of the number of symbols (e.g. 12 or 14) and a minimum value indicated by a k2 field in a PUSCH-ConfigCommon field (PUSCH-ConfigCommon) of the PUSCH-Config.

[0221] It can be understood that the determination of K PUCCH The determination of K PUCCH The determination of K

[0222] In the embodiments of the present disclosure, the accumulation of the first parameter value is the accumulation of all the first parameter values between the first time and the second time. The accumulation can be determined at one time, or can be determined respectively for each transmission occasion and then accumulated. The process is similar to the above description of the determination of the initial power control adjustment value f Figure 6 and Figure 7 Similar to the description of the PUSCH, for brevity, it is not repeated here.

[0223] In this way, the accumulation of the first parameter value in all the DCIs received between the first time associated with the starting transmission occasion and the second time associated with the current transmission occasion can be obtained. Further, in the embodiments of the present disclosure, the initial power control adjustment value f b，f，c (i-i0, l) and the accumulation of the first parameter value in all the DCIs received between the first time and the second time determine the power control adjustment value f b，f，c (i, l) of the current transmission occasion.

[0224] Specifically, if (1) the transmission power of the starting transmission occasion i-i0 is the maximum transmission power and or (2) the transmission power of the starting transmission occasion i-i0 is the minimum transmission power and then g b，f，c (i, l) = g b，f，c (i-i0, l). Otherwise, the sum of the initial power control adjustment value and the accumulation of the first parameter value is taken as the power control adjustment value of the current transmission occasion, denoted as:

[0225]

[0226] In this way, in the embodiments of the present disclosure, when determining the power control adjustment value of the current transmission occasion, the adjustment of the TPC command on the power control can be truly reflected, the transmission power control command value of the TPC accumulation will not be missed due to the limitation of the joint channel estimation on the power, and the actual adjustment amplitude can be better adapted to, thereby ensuring the communication performance.

[0227] At 220, terminal device 120 determines the transmit power at the current transmission time based on the power control adjustment value at the current transmission time.

[0228] In one implementation, the uplink transmission to be performed by the terminal device 120 is PUSCH, and the power control adjustment value determined at 210 is the PUSCH power control adjustment value. Accordingly, at 220, the PUSCH transmit power can be determined.

[0229] For example, if terminal device 120 performs PUSCH transmission on carrier f of the active uplink bandwidth part (active UL BWP) b of serving cell c, it is configured using the parameter set at index j, for the PUSCH power control adjustment value f of state l. b，f，c (i, l), the transmit power of PUSCH transmission timing i is expressed as P PUSCH，b，fc (i, j, q) d ,l), can be determined according to the following formula:

[0230]

[0231] In the above formula, P CMAX，f，c (i) is the maximum output power of i during PUSCH transmission on carrier f of serving cell c. The maximum output power is pre-configured. Min indicates that the output power value is the smaller of the two values ​​in the curly braces. P O_PUSCH，b，f，c (j) is the nominal power P O_NOMINAL_PUSCH，f，c (j) and power budget compensation P O_UE_PUSCH，bf，c The sum of (j) can be configured by the higher level. This is the bandwidth allocated for PUSCH resources, expressed using the number of Resource Blocks (RBs) used for PUSCH transmission timing. α b，f，c (j) is road loss compensation, which can be configured by higher-level management. PL b，f，c (qd) is the downlink pathloss estimate of the active DL BWP, estimated using a reference signal with an exponent of qd, in dB. TF，b，f，c (i) is an adjustment value related to the number of bits per resource element (BPRE) transmitted.

[0232] In another implementation, the uplink transmission that the terminal device 120 is to make is a PUCCH, and the power control adjustment value determined at 210 is a PUCCH power control adjustment value. Accordingly, at 220, a PUCCH transmit power can be determined.

[0233] Illustratively, if the terminal device 120 is to make a PUCCH transmission on carrier f of the active uplink bandwidth part (active UL BWP) b of serving cell c, using a numerology with index q u , and the PUCCH power control adjustment value for state l is g b，f，c (i, l), the transmit power for PUCCH transmission occasion i is denoted as P PUCCH，b，f，c (i, q u , q d , l), which can be determined according to:

[0234]

[0235] In the above equation, P CMAX，f，c (i) is the maximum transmit power for PUCCH transmission occasion i on carrier f of serving cell c, which is pre-configured. P O_PUCCH，b，f，c (q u ) is the sum of the nominal power P O_NOMINAL_PUCCH，f，c (q u ) and the power budget compensation P O_UE_PUCCH，b，f，c (q u ), which can be configured by higher layers. is the bandwidth of the PUCCH resource allocation, expressed using the number of resource blocks (RBs) used for the PUCCH transmission occasion. PL b，f，c (qd) is the downlink path loss estimate for the active DL BWP, estimated using the reference signal with index q d . Δ F_PUCCH (F) is the offset adjustment value configured for different PUCCH formats, respectively. Δ TF，b，f，c (i) is the adjustment value related to the BPRE of the transmission.

[0236] At 230, the terminal device 120 transmits at the transmit power in the current transmission occasion.

[0237] In particular, the terminal device 120 can transmit a PUSCH at P PUSCH，b，fc (i, j, q d , l), or a PUCCH at P PUCCH，b，fc (i, q u , q d, l) transmitting the PUCCH.

[0238] Thus, in the embodiments of the present disclosure, when determining the transmit power of the current transmission occasion, the time domain window before the current transmission occasion can be considered, so that the power state adjustment state can be more matched with the value required by the occasion to adjust, and the communication performance is ensured.

[0239] It can be understood that the time domain window in the embodiments of the present disclosure can be used for joint channel estimation, and the joint channel estimation is not limited to between PUSCH repetitions of one scheduling or between PUCCH repetitions of one scheduling, and the joint channel estimation can be between different PUSCH repetitions of different scheduling, or can be between different PUCCH repetitions of different scheduling, or can be between PUSCH and PUCCH, or can be between Msg3 repetitions in a random access scenario, etc., and the present disclosure is not limited thereto. Although the embodiments are described above respectively for PUSCH and PUCCH, the present disclosure can also include any combination of the above-mentioned embodiments, and in addition, can also include the transmit power for other uplink transmissions, etc., which are not listed one by one in the present disclosure.

[0240] It can be understood that although the above embodiments are described with respect to the "time domain window", the time domain window can also be referred to as a joint transmission occasion (JTO), a transmission occasion for joint channel estimation (TOJ), etc. For example, for a PUSCH repetition type A scenario or for a PUCCH repetition scenario, the joint transmission occasion corresponds to a time domain window covering multiple TOs. For example, for a PUSCH repetition type B scenario, the joint transmission occasion corresponds to an actual repetition, rather than a nominal repetition.

[0241] Accordingly, the process of determining the PUSCH power control adjustment value with respect to the "joint transmission occasion (JTO)" can include: when not being configured with a TPC accumulation parameter, determining the PUSCH power control adjustment value of the current joint transmission occasion based on an initial PUSCH power control adjustment value of a previous joint transmission occasion and an accumulation, wherein the accumulation is an accumulation of first PUSCH parameter values in DCIs between a first time associated with the previous joint transmission occasion and a second time associated with the current joint transmission occasion. Similarly, the process of determining the PUCCH power control adjustment value with respect to the "joint transmission occasion (JTO)" can include: determining the PUCCH power control adjustment value of the current joint transmission occasion based on an initial PUCCH power control adjustment value of a previous joint transmission occasion and an accumulation, wherein the accumulation is an accumulation of first PUCCH parameter values in DCIs between a first time associated with the previous joint transmission occasion and a second time associated with the current joint transmission occasion.

[0242] It can be understood that the accumulation in determining the power control adjustment value for the joint transmission occasion (JTO) can be completed once or can be completed multiple times according to the TOs. Regardless of how the accumulation is determined, the power control at the joint transmission occasion can be performed according to the existing manner. Thus, the power control adjustment value meeting the actual requirements can be determined only by replacing the existing TO with the JTO, which simplifies the processing manner and guarantees the communication performance.

[0243] Figure 8 Another schematic flowchart of a transmission method 800 according to an embodiment of the present disclosure is shown. As an example, the method 800 can be implemented at the terminal device 120 shown. Figure 1 For ease of understanding, the transmission method 800 is described below by taking the terminal device 120 as an example, but this is merely exemplary and is not intended to limit the embodiments of the present disclosure in any way.

[0244] The method 800 starts at block 810. At 810, the terminal device 120 acquires power indication information, where the power indication information is used to indicate a power adjustment value at a current time domain resource, and the power indication information includes TPC indication information, and the current time domain resource includes at least two transmission occasions or a previous time domain resource of the current time domain resource includes at least two transmission occasions.

[0245] At 820, the terminal device 120 determines a power control adjustment value at the current time domain resource based on the power indication information.

[0246] At 830, the terminal device 120 determines a transmission power at the current time domain resource based on the power control adjustment value at the current time domain resource.

[0247] At 840, the terminal device 120 performs transmission at the current time domain resource with the transmission power.

[0248] Exemplarily, the time domain resource including at least two transmission occasions can be used for joint channel estimation, or can be used for other scenarios, etc., which are not limited by the present disclosure. Exemplarily, the time domain resource can be a time domain window, or can also be referred to as a time window, a joint transmission occasion (JTO), an invariable transmission occasion, a transmission occasion for joint channel estimation (TOJ), or other, etc. Exemplarily, the power control adjustment value can also be referred to as a power control adjustment state or a power control adjustment state value or a power control adjustment state parameter or a power control adjustment state item or a power control adjustment parameter or other, etc., which are not limited by the present disclosure.

[0249] In the embodiments of the present disclosure, the at least two transmission occasions within the current time domain resource can have the same transmission characteristic information, where the same transmission characteristic information includes at least one of the following: the same TPMI, the same transmission power, the same frequency domain resource occupation, phase continuity, the same antenna port, and the like. Similarly, the at least two transmission occasions within the previous time domain resource can have the same transmission characteristic information.

[0250] For example, the at least two transmission occasions within the current time domain resource having the same transmission power means that the non-initial transmission occasion of the current time domain resource does not perform power control / power adjustment. Alternatively, it can be understood that the first transmission occasion of the current time domain resource performs power control / power adjustment, and the transmission power of the other transmission occasions after the first transmission occasion is equal to the transmission power of the first transmission occasion.

[0251] In an implementation manner, Figure 8 The method 800 shown can be used to determine the PUSCH transmission power of the terminal device 120. For example, in the case where the terminal device 120 is not configured with the TPC accumulation parameter, at 820, the PUSCH power control adjustment value in the current time domain resource is determined based on the initial power control adjustment value of the previous time domain resource of the current time domain resource and the accumulation of the power adjustment values indicated by the power indication information in all DCIs received between the first time point associated with the previous time domain resource and the second time point associated with the current time domain resource.

[0252] The power adjustment value indicated by the TPC indication information can be determined from a value set. As an example, the value set can be a TPC accumulation value, specifically, a TPC accumulation value of PUSCH. For example, the TPC indication information can be a TPC command field parameter, and the power adjustment value indicated by the power indication information can be a TPC accumulation value of PUSCH corresponding to the TPC command field parameter. For brevity, the description of this embodiment is not repeated here, and the reader can refer to the description above in connection with Table 1 and the like.

[0253] In another implementation manner, Figure 8 The method 800 shown can be used to determine the PUSCH transmission power of the terminal device 120. For example, in the case where the terminal device 120 is not configured with the TPC accumulation parameter, at 820, the PUSCH power control adjustment value in the current time domain resource is determined based on the initial power control adjustment value of the previous time domain resource of the current time domain resource and the accumulation of the power adjustment values indicated by the power indication information in all DCIs received between the first time point associated with the previous time domain resource and the second time point associated with the current time domain resource.

[0254] The first time and the second time can refer to the related description of the first time and the second time in the above embodiments, and for the sake of brevity, will not be repeated here.

[0255] The power adjustment value indicated by the TPC indication information can be determined from the first value set. As an example, the TPC indication information can be a TPC command field parameter, and the power adjustment value indicated by the power indication information can be a TPC accumulation value of PUSCH corresponding to the TPC command field parameter.

[0256] In some examples of the implementation, at least one of the elements in the first value set is greater than 3, and / or at least one of the elements in the first value set is less than -1.

[0257] In some examples of the implementation, the number of elements in the first value set can be equal to 4 or can be greater than 4. For example, the TPC indication information can be a TPC command field parameter, and the number of bits occupied by the TPC command field can be greater than 2, for example 3, so that the TPC command field parameter can be a value in 0 to 7, and accordingly the first value set can also contain 8 elements, at least one of which is greater than 3 or at least one of which is less than -1.

[0258] In some examples, the first value set is RRC configured or predefined.

[0259] In other examples, the first value set is determined from at least two first sets. For example, the first value set can be determined from at least two first sets based on first set indication information in RRC signaling. As an example, the first set indication information can be an index. For example, the first value set can be determined from at least two first sets based on a predefined criterion. The predefined criterion can be a scenario for joint channel estimation, etc. As an example, the predefined criterion can be an interval length. The interval length is the length of the previous time domain resource or the length between the first transmission occasion of the previous time domain resource and the first transmission occasion of the current time domain resource.

[0260] Optionally, the at least two first sets can be predefined, for example, pre-configured or pre-stored in various ways. In other examples, part or all of the at least two first sets can be configured by RRC signaling. In other examples, part or all of the at least two first sets can be indicated by DCI. In the embodiments of the present disclosure, the at least two first sets can also be configured in other ways, etc., which will not be listed here.

[0261] Optionally, part or all of the elements in the at least two first sets can be predefined or can be configured by RRC signaling.

[0262] Thus, the disclosure embodiments achieve the expansion of the TPC accumulation value for PUSCH, so that the range of power control adjustment value is larger, the adjustment amount is more precise, and the power control adjustment amplitude required by actual scenarios such as joint channel estimation can be better adapted, thereby ensuring the communication performance.

[0263] In another implementation manner, Figure 8 The method 800 shown can be used to determine the PUCCH transmit power of the terminal device 120. For example, at 820, the PUCCH power control adjustment value at the current time domain resource is determined based on the initial power control adjustment value of the previous time domain resource of the current time domain resource and the accumulation of all power indication information indicated in the DCI received between the first time associated with the previous time domain resource and the second time associated with the current time domain resource.

[0264] The power adjustment value indicated by the TPC indication information can be determined from a value set. As an example, the value set can be a TPC accumulation value, specifically, a TPC accumulation value for PUCCH. For example, the TPC indication information can be a TPC command field parameter, and the power adjustment value indicated by the TPC indication information can be a TPC accumulation value for PUCCH corresponding to the TPC command field parameter. For brevity, the description of this embodiment is not repeated here, which can be referred to the description above in connection with Table 4, etc.

[0265] In another implementation manner, Figure 8 The method 800 shown can be used to determine the PUCCH transmit power of the terminal device 120. For example, at 820, the PUCCH power control adjustment value at the current time domain resource is determined based on the initial PUCCH power control adjustment value of the previous transmission occasion of the current time domain resource and the PUCCH accumulation of all power indication information indicated in the DCI received between the first time associated with the previous transmission occasion and the second time associated with the current time domain resource.

[0266] The description of the first time and the second time in the above embodiments is not repeated here for brevity.

[0267] The power adjustment value indicated by the TPC indication information can be determined from a second value set. As an example, the TPC indication information can be a TPC command field parameter, and the power adjustment value indicated by the TPC indication information can be a TPC accumulation value for PUCCH corresponding to the TPC command field parameter.

[0268] In some examples of the implementation, at least one of the elements in the second set of values is greater than 3, and / or at least one of the elements in the second set of values is less than -1.

[0269] In some examples of the implementation, the number of elements in the second set of values can be equal to 4, or can be greater than 4. For example, the TPC indication information can be a TPC command field parameter, the TPC command field can occupy more than 2 bits, for example 3 bits, so that the TPC command field parameter can be a value in 0 to 7, and accordingly the second set of values can also contain 8 elements, at least one of which is greater than 3 or at least one of which is less than -1.

[0270] In some examples, the second set of values is RRC configured or predefined.

[0271] In some other examples, the second set of values is determined from at least two second sets. For example, the second set of values can be determined from the at least two second sets based on second set indication information in RRC signaling. For example, the second set indication information can be an index. For example, the second set of values can be determined from the at least two second sets based on a predefined criterion. The predefined criterion can be a scenario for joint channel estimation, etc. For example, the predefined criterion can be an interval length. The interval length is a length of a previous time domain resource or a length between a first transmission occasion of the previous time domain resource and a first transmission occasion of a current time domain resource.

[0272] Optionally, the at least two second sets can be predefined, for example preconfigured or pre-stored in various ways. In some other examples, part or all of the at least two second sets can be configured through RRC signaling. In some other examples, part or all of the at least two second sets can be indicated through DCI. In the embodiments of the present disclosure, the at least two second sets can also be configured in other ways, etc., which are not listed here.

[0273] Optionally, part or all of the elements in the at least two second sets can be predefined or configured through RRC signaling.

[0274] In this way, the embodiments of the present disclosure realize the expansion of the TPC accumulation value of the PUCCH, so that the range of the power control adjustment value is larger, the adjustment amount is more precise, and the power control adjustment amplitude required by actual scenarios such as joint channel estimation can be better adapted to, and the communication performance is guaranteed.

[0275] It can be understood that, in some embodiments, the current time domain resource includes at least two transmission occasions, and the previous time domain resource can include one or more transmission occasions. Taking the time domain resource as a time domain window for example, in an example, as shown in FIG. 3, the current time domain resource (such as the time domain window 320) includes 4 transmission occasions, and the previous time domain resource (such as the time domain window 310) includes 4 transmission occasions. Figure 3 In another example, as shown in FIG. 5, the current time domain resource (such as the time domain window 513) includes 4 transmission occasions, and the previous time domain resource (such as the time domain window 512) includes 1 transmission occasion. Figure 5

[0276] It can be understood that, in another embodiment, the current transmission resource includes one transmission occasion, for example, the current transmission resource is a separate transmission occasion for joint channel estimation, or the current transmission resource is not a separate transmission occasion for joint channel estimation, and the previous time domain resource includes at least two transmission occasions. In an example, as shown in FIG. 6, the current time domain resource (such as the time domain window 620) includes one transmission occasion, and the previous time domain resource (such as the time domain window 611) includes two transmission occasions. Figure 5

[0277] In another implementation manner, as shown in FIG. 8, the method 800 can be used to determine the PUSCH transmission power of the terminal device 120. Exemplarily, in the case of being configured with the TPC accumulation parameter, at 820, the power control adjustment value in the current time domain resource is determined based on the scaling factor and the power adjustment value indicated by the TPC indication information. Figure 8 In some examples, the scaling factor can be pre-configured or pre-defined. That is, the scaling factor is a predetermined value, so that the pre-defined scaling factor can be directly obtained to determine the power control adjustment value, which is efficient and reduces the calculation complexity of the terminal device.

[0278] In another example, the scaling factor can be determined based on a third message, wherein the third message can be carried in the RRC signaling.

[0279] For example, the third message can include a scaling factor, so that the terminal device 120 can directly obtain the scaling factor from the third message, which is fast and efficient and reduces the calculation complexity of the terminal device.

[0280]

[0281] ​​​In some examples, the scaling factor can be determined based on a third message and a fourth message, wherein the third message can be carried in RRC signaling and include a plurality of scaling factors, and wherein the fourth message can be DCI or a Medium Access Control-Control Element (MAC-CE). The fourth message can be used to determine one of the plurality of scaling factors.

[0282] In particular, the terminal device 120 can receive a third message including a plurality of scaling factors. The terminal device 120 can receive a fourth message including scaling factor indication information. The terminal device 120 further obtains, from the plurality of scaling factors, a scaling factor indicated by the scaling factor indication information. In this way, the scaling factor can be determined based on both the third message and the fourth message, which can be semi-statically configured by RRC and indicated by DCI or MAC-CE, can avoid excessive signaling overhead of DCI or MAC-CE, and can achieve faster updating of the scaling factor and be more flexible.

[0283] In some examples, the scaling factor can be determined based on a predefined criterion. For example, the predefined criterion can be an interval length, which can be a length of a previous time-domain resource or a length between a first transmission occasion of the previous time-domain resource and a first transmission occasion of a current time-domain resource.

[0284] In an example, the interval length can be used as the scaling factor, such as a dimensionless value of the interval length after de-dimensioning.

[0285] In another example, the scaling factor corresponding to the interval length can be obtained based on a correspondence between the interval length and the scaling factor, wherein the correspondence can be configured by RRC of the access network device or predefined.

[0286] In yet another example, the scaling factor can be determined based on the interval length and a predefined scaling factor. For example, a product of the interval length and the scaling factor can be used as the scaling factor.

[0287] It can be understood that the length in the embodiments of the present disclosure can be at least one of a number of slots, a number of symbols, a number of transmission occasions, a number of repetitions, and the like, wherein the number of repetitions can be a nominal number of repetitions or an actual number of repetitions, and the like, which are not limited by the present disclosure.

[0288] In some examples, the scaling factor can be determined based on a third message and a predefined criterion. The third message can be carried in RRC signaling, and the predefined criterion can be an interval length, which can be a length of a previous time-domain resource or a length between a first transmission occasion of the previous time-domain resource and a first transmission occasion of a current time-domain resource.

[0289] For example, the third message includes a scaling factor, and the product of the interval length and the scaling factor can be used as the scaling factor.

[0290] In some examples, the scaling factor can be determined based on the fourth message and a predefined criterion. The fourth message is DCI, and the predefined criterion is the interval length, which is the length of the previous time-domain resource or the length between the first transmission occasion of the previous time-domain resource and the first transmission occasion of the current time-domain resource.

[0291] For example, the fourth message includes a scaling factor, and the product of the interval length and the scaling factor can be used as the scaling factor.

[0292] In some examples, the scaling factor can be determined based on the third message, the fourth message and a predefined criterion. The third message is carried in RRC signaling, the fourth message is DCI or AMC-CE, and the predefined criterion is the interval length.

[0293] For example, the third message includes a plurality of scaling factors, and the fourth message includes scaling factor indication information. The scaling factor indicated by the scaling factor indication information can be obtained from the plurality of scaling factors, and the product of the interval length and the scaling factor can be used as the scaling factor.

[0294] In the embodiments of the present disclosure, the scaling factor can also be referred to as an adjustment factor or a power control adjustment factor or other names, etc. The scaling factor can be used to adjust the TPC command adjustment value to determine the power control adjustment value.

[0295] In some embodiments, the power adjustment value indicated by the TPC indication information can be determined from a value set.

[0296] Optionally, the value set or the elements in the value set can be predefined.

[0297] In an example, the TPC indication information can be a TPC command field parameter, and the power adjustment value indicated by the TPC indication information can be a TPC absolute value corresponding to the TPC command field parameter. As shown in Table 2 above, the power adjustment value indicated by the TPC indication information can be determined from the value set {-4, -1, 1, 4}.

[0298] In another example, at least one element in the value set in which the power adjustment value indicated by the TPC indication information is located has a value greater than 4. For example, the value set can be {-6, -1, 1, 6} or {-8, -2, 2, 8} or others.

[0299] In another example, the power adjustment value indicated by the TPC indication information is in a value set which contains more than 4 elements. For example, the TPC indication information can be a TPC command field parameter, the TPC command field can occupy more than 2 bits, for example 3 bits, so that the TPC command field parameter can be a value in 0 to 7, and the value set can also contain 8 elements, at least one of which is greater than 4. For example, the value set can be {-6, -4, -2, -1, 1, 2, 4, 6} or other.

[0300] In some embodiments, the value set or the elements in the value set are configured by RRC, so that the terminal device 120 can determine the indicated power adjustment value from the value set based on the TPC indication information.

[0301] In some embodiments, the value set can be determined from at least two value sets (hereinafter referred to as at least two sets).

[0302] In an example, the value set can be determined from the at least two sets based on set indication information in RRC signaling.

[0303] For example, the set indication information can be an index. The at least two sets can have corresponding indexes, and different sets have different indexes. Then the corresponding value set can be determined based on the index in the RRC signaling. For example, Table 5, there are two sets for the TPC absolute value used for JCE, which are {-6, -1, 1, 6} and {-8, -2, 2, 8}. Assuming that the index of the set {-6, -1, 1, 6} is A1, and the index of the set {-8, -2, 2, 8} is A2. Then, if the index in the RRC signaling is A1, the value set can be determined as {-6, -1, 1, 6}. If the index in the RRC signaling is A2, the value set can be determined as {-8, -2, 2, 8}. It can be understood that the set indication information can also be in other forms, which are not listed here.

[0304] Table 5

[0305]

[0306] In another example, the value set can be determined from the at least two sets based on a predefined criterion. The predefined criterion can be a scenario for joint channel estimation, etc.

[0307] For example, Table 5, there are two sets corresponding to the TPC command field, which are the TPC absolute value and the TPC absolute value used for JCE. Then when determining the transmission power of the current time domain resource for joint channel estimation, the value set can be determined as the column in which the TPC absolute value used for JCE is located, that is, the value set is {-6, -1, 1, 6}.

[0308] In yet another example, the value set can be determined from the at least two sets based on a predefined criterion. The predefined criterion can be an interval length. The interval length is a length of a previous time domain resource or a length between a first transmission occasion of the previous time domain resource and a first transmission occasion of the current time domain resource.

[0309] Taking Table 6 as an example, there are two sets corresponding to the TPC command field, which are: TPC absolute value for JCE with interval length = 3 and TPC absolute value for JCE with interval length = 2. Then, the terminal device 120 can first determine the interval length, and then can determine the value set based on the interval length.

[0310] Table 6

[0311]

[0312] In this way, by extending the TPC command field in the row and / or column direction, the actual required power adjustment range can be adapted, and the communication performance is ensured. Specifically, the TPC absolute value is expanded, which is not only related to the TPC command field, but also related to the interval length. Such expansion makes the range of power control adjustment value larger, the adjustment amount more fine, and the power control adjustment range required by the actual scene more adaptable, thereby ensuring the communication performance.

[0313] It should be noted that Table 6 is only illustrative. One or more interval lengths can correspond to a column of TPC absolute value for JCE, for example, interval length = 3 or 4 corresponds to the 2nd column of Table 6, and interval length = 1 or 2 corresponds to the 3rd column of Table 6. Alternatively, an interval of interval lengths can correspond to a column of TPC absolute value for JCE, for example, interval length in the interval (2, 4] corresponds to the 2nd column of Table 6, and interval length in the interval (0, 2] corresponds to the 3rd column of Table 6. Alternatively, TPC absolute value for JCE can include more or fewer columns.

[0314] In addition, it can be understood that the value set can also be determined from the at least two sets in other ways, which are not listed one by one here.

[0315] In some examples, the at least two sets can be predefined, for example, pre-configured or pre-stored in various ways. In other examples, part or all of the at least two sets can be configured by RRC signaling. In other examples, part or all of the at least two sets can be indicated by DCI. In the embodiments of the present disclosure, the at least two sets can also be configured in other ways, and the like, which are not listed here.

[0316] In some embodiments, the determining, at 820, the power control adjustment value for the current time domain resource can include determining a power control adjustment value for each transmission occasion of the current time domain resource.

[0317] In some embodiments, the determining, at 820, the power control adjustment value for the current time domain resource can include determining a power control adjustment value for a first transmission occasion of the current time domain resource. Optionally, a power control adjustment value for other transmission occasions of the current time domain resource (i.e., other than the first transmission occasion) can be determined by other rules, such as a rule that a transmission power of the other transmission occasion is equal to a transmission power of the first transmission occasion.

[0318] Regarding blocks 830 and 840 in Figure 8 , reference can be made to the above description of the embodiments of Figure 2 blocks 220 and 230, which will not be repeated here for brevity.

[0319] Thus, the embodiments of the present disclosure determine the power control adjustment value for the current time domain resource based on the power indication information (such as the TPC command indication information), which simplifies the processing procedure of the terminal device, reduces the complexity at the terminal device, and improves the efficiency of determining the transmission power. Moreover, the power adjustment value corresponding to the TPC command indication information (such as the TPC absolute value for JCE) can have a larger value or a larger range, which can thus adapt to the amplitude of the actual required power adjustment, and ensures the communication performance.

[0320] Figure 9 Another schematic flowchart of a transmission method 900 is shown according to an embodiment of the present disclosure. As an example, the method 900 can be implemented at the access network device 110 shown in Figure 1 For ease of understanding, the transmission method 900 is described below by taking the access network device 110 as an example, but this is merely exemplary and is not intended to limit the embodiments of the present disclosure in any way.

[0321] The method 900 starts at block 910. At 910, the access network device 110 sends power indication information to the terminal device 120, where the power indication information is used to indicate a power adjustment value for a current time domain resource, the power indication information includes TPC indication information, and the current time domain resource includes at least two transmission occasions or a previous time domain resource of the current time domain resource includes at least two transmission occasions.

[0322] At 920, the access network device 110 receives a transmission by the terminal device 120 at a transmission power at the current time domain resource, where the TPC indication information is a basis for determining the transmission power.

[0323] Exemplarily, the time domain resource can be used for joint channel estimation, or can be used for other scenarios, etc., and the disclosure does not limit this. Exemplarily, the time domain resource can be a time domain window, or can also be referred to as a time window, a joint transmission occasion (JTO), an invariable transmission occasion, a transmission occasion for joint channel estimation (TOJ), or other, etc.

[0324] Exemplarily, the power indication information can be used for the terminal device 120 to determine a power control adjustment value based on the power indication information, and further determine a transmission power based on the power control adjustment value, wherein the power control adjustment value can also be referred to as a power control adjustment state or a power control adjustment state value or a power control adjustment state parameter or a power control adjustment state item or a power control adjustment parameter or other, etc., and the disclosure does not limit this.

[0325] In the embodiments of the disclosure, the at least two transmission occasions within the current time domain resource can have the same transmission characteristic information, wherein the same transmission characteristic information includes at least one of the following: the same TPMI, the same transmission power, the same frequency domain resource occupation, phase continuity, the same antenna port, etc.

[0326] For example, the at least two transmission occasions within the current time domain resource have the same transmission power means that the power control / power adjustment is not performed at the non-starting transmission occasion of the current time domain resource. Or it can be understood that the power control / power adjustment is performed at the first transmission occasion of the current time domain resource, and the transmission power of the other transmission occasions after the first transmission occasion is equal to the transmission power of the first transmission occasion.

[0327] Optionally, the previous time domain resource of the current time domain resource can include one or more transmission occasions, and the previous time domain resource can be a time domain window for joint channel estimation, or can be a transmission occasion for non-joint channel estimation.

[0328] In some embodiments, the number of bits occupied by the TPC indication information is greater than 2 or equal to 2. As an example, the TPC indication information can be a TPC command field parameter.

[0329] Exemplarily, the power adjustment value indicated by the TPC indication information can be a transmission power control command value, such as a TPC accumulated value, a TPC absolute value, etc.

[0330] In some embodiments, the power adjustment value indicated by the TPC indication information is determined from a value set, and the value set includes at least one value greater than 4. As an example, the value set or the elements in the value set can be configured by the access network device 110 through RRC signaling. As an example, the number of elements in the value set can be equal to 4, or the number of elements in the value set is greater than 4.

[0331] In some embodiments, the method 900 can further include that the access network device 110 sends a third message to the terminal device 120, the third message being used for the terminal device 120 to determine the transmission power, wherein the third message is carried in RRC signaling, and the third message includes a scaling factor or a scaling factor.

[0332] In an example, the third message includes the scaling factor, so that the terminal device 120 can determine the power control adjustment value based on the scaling factor and the power adjustment value indicated by the TPC indication information.

[0333] In another example, the third message includes the scaling factor, so that the terminal device 120 can determine the scaling factor based on the scaling factor and a predefined criterion (such as an interval length, as described in the embodiments in conjunction with FIG. 6), and then determine the power control adjustment value based on the scaling factor and the power adjustment value indicated by the TPC indication information. Figure 8

[0334] In some embodiments, the method 900 can further include that the access network device 110 sends a third message to the terminal device 120, the third message including a plurality of scaling factors; and the access network device 110 further sends a fourth message to the terminal device 120, the fourth message being used for the terminal device 120 to determine one of the plurality of scaling factors from the plurality of scaling factors, wherein the third message is carried in RRC signaling, and the fourth message is DCI or MAC-CE, and the third message and the fourth message are used for the terminal device 120 to determine the transmission power.

[0335] In some embodiments, the method 900 can further include that the access network device 110 sends configuration information to the terminal device 120, wherein the configuration information is used to configure a plurality of sets of values (hereinafter referred to as a plurality of sets). In this way, the terminal device 120 can determine a set of values from the plurality of sets, and further, the terminal device 120 can determine the power adjustment value indicated by the TPC indication information from the set of values based on the TPC indication information.

[0336] In some embodiments, the method 900 can further include that the access network device 110 sends set indication information to the terminal device 120, the set indication information being used for the terminal device 120 to determine the set of values from the plurality of sets.

[0337] In an example, the set indication information can be an index or an index value, so that the terminal device 120 can determine the set of values from the plurality of sets based on the index or the index value, and further, the terminal device 120 can determine the power adjustment value indicated by the TPC indication information from the set of values based on the TPC indication information.

[0338] ​Understandably, descriptions of scaling factors, scaling factors, value sets, and multiple sets can be found in the above examples, and will not be repeated here for the sake of brevity.

[0339] Thus, in this embodiment of the present disclosure, the access network device can be configured or instructed in a semi-static or static manner, which allows for faster updates or adjustments of scaling factors, and the configuration method is more flexible.

[0340] It should be understood that in the embodiments of this disclosure, terms such as "first," "second," and "third" are merely used to indicate that multiple objects may be different, but do not exclude the possibility that two objects are the same. "First," "second," and "third," etc., should not be construed as any limitation on the embodiments of this disclosure.

[0341] It should also be understood that the manner, situation, category, and division of embodiments in the present disclosure are for the convenience of description only and should not constitute a special limitation. Various manners, categories, situations, and features in the embodiments can be combined with each other where logically consistent.

[0342] It should also be understood that the foregoing is merely to help those skilled in the art better understand the embodiments of this disclosure, and is not intended to limit the scope of the embodiments of this disclosure. Those skilled in the art can make various modifications, variations, or combinations based on the foregoing. Such modifications, variations, or combinations are also within the scope of the embodiments of this disclosure.

[0343] It should also be understood that the above description focuses on highlighting the differences between the various embodiments. Similarities or commonalities can be referenced or learned from each other, and for the sake of brevity, they will not be repeated here.

[0344] Figure 10 A schematic block diagram of a communication device 1000 according to an embodiment of the present disclosure is shown. The device 1000 may be implemented at a terminal device 120, or may be implemented as a chip or chip system in the terminal device 120, and the scope of the present disclosure is not limited in this respect.

[0345] like Figure 10 As shown, the device 1000 may include a first determining unit 1010, a second determining unit 1020, and a transmission unit 1030. The first determining unit 1010 is configured to determine a power control adjustment value for the current transmission opportunity based on a time-domain window preceding the current transmission opportunity, wherein the time-domain window includes at least two transmission opportunities. The second determining unit 1020 is configured to determine the transmit power for the current transmission opportunity based on the power control adjustment value. The transmission unit 1030 is configured to transmit at the transmit power during the current transmission opportunity.

[0346] In some embodiments, the first determining unit 1010 is configured to determine the power control adjustment value at the current transmission occasion based on an initial power control adjustment value of a starting transmission occasion of the time domain window and an accumulation of first parameter values in all downlink control information (DCI) received between a first time associated with the starting transmission occasion and a second time associated with the current transmission occasion.

[0347] In some embodiments, the first determining unit 1010 is configured to determine a scaling factor based on the time domain window, obtain a second parameter value corresponding to a TPC command field parameter in DCI from the access network device, and determine the power control adjustment value at the current transmission occasion based on the second parameter value and the scaling factor.

[0348] In some embodiments, the first determining unit 1010 is configured to determine the scaling factor based on a total length between the starting transmission occasion of the time domain window and the current transmission occasion, or determine the scaling factor based on a length of the time domain window.

[0349] In some embodiments, the first determining unit 1010 is configured to obtain an interval length, where the interval length is a total length between the starting transmission occasion of the time domain window and the current transmission occasion or a length of the time domain window, and obtain the scaling factor corresponding to the interval length based on a correspondence between the interval length and the scaling factor, where the correspondence is configured by RRC of the access network device.

[0350] In some embodiments, the first determining unit 1010 is configured to obtain an interval length, where the interval length is a total length between the starting transmission occasion of the time domain window and the current transmission occasion or a length of the time domain window, obtain a scaling factor in RRC signaling or DCI from the access network device, and determine the scaling factor based on the interval length and the scaling factor.

[0351] In some embodiments, the first determining unit 1010 is configured to determine the power control adjustment value at the current transmission occasion based on a product of the second parameter value and the scaling factor.

[0352] In some embodiments, the first determining unit 1010 is configured to obtain an interval length, where the interval length is a total length between the starting transmission occasion of the time domain window and the current transmission occasion or a length of the time domain window, obtain a TPC command field parameter in DCI from the access network device, and determine the power control adjustment value at the current transmission occasion based on the interval length and the TPC command field parameter.

[0353] In some embodiments, the time domain window is used for joint channel estimation, and the current transmission occasion and the starting transmission occasion of the time domain window further include an interrupt time domain resource that is not used for joint channel estimation.

[0354] For example, Figure 10 The device 1000 can be implemented as a terminal device 120, or as a chip or chip system in the terminal device 120, and the embodiments of this disclosure are not limited thereto. Figure 10 The device 1000 in the middle can be used to achieve the above-mentioned combination. Figures 2 to 7 For the sake of brevity, the various processes described in the terminal device 120 will not be repeated here.

[0355] Figure 11 Another schematic block diagram of a communication device 1100 according to an embodiment of the present disclosure is shown. The device 1100 may be implemented at a terminal device 120, or may be implemented as a chip or chip system in the terminal device 120, and the scope of the present disclosure is not limited in this respect.

[0356] like Figure 11 As shown, the device 1100 may include an acquisition unit 1110, a first determination unit 1120, a second determination unit 1130, and a transmission unit 1140. The acquisition unit 1110 is configured to acquire power indication information, wherein the power indication information indicates a power adjustment value for a current time-domain resource. The power indication information includes TPC indication information, and the current time-domain resource includes at least two transmission opportunities, or the preceding time-domain resource includes at least two transmission opportunities. The first determination unit 1120 is configured to determine a power control adjustment value for the current time-domain resource based on the power indication information. The second determination unit 1130 is configured to determine the transmit power for the current time-domain resource based on the power control adjustment value. The transmission unit 1140 is configured for the terminal device to transmit at the transmit power for the current time-domain resource.

[0357] In some embodiments, the power adjustment value indicated by the TPC indication information is determined from a set of values ​​that includes at least one value greater than 4.

[0358] In some embodiments, the number of bits occupied by the TPC indication information is greater than 2, and / or the number of elements in the value set is greater than 4.

[0359] In some embodiments, the set of values ​​is determined from at least two sets of values ​​based on predefined criteria, or the set of values ​​is determined from at least two sets of values ​​based on an index from the RRC.

[0360] In some embodiments, the set of values ​​is configured by RRC signaling or is predefined.

[0361] In some embodiments, the first determining unit is configured to: determine a power control adjustment value for the current time domain resource based on the power adjustment value indicated by the scaling factor and TPC indication information.

[0362] In some embodiments, the scaling factor is a predetermined value; or, the scaling factor is determined based on a third message and / or predefined criteria, wherein the third message is carried in RRC signaling.

[0363] In some embodiments, the scaling factor is determined based on a third message, which includes the scaling factor.

[0364] In some embodiments, the scaling factor is determined based on a third message and a fourth message, wherein the fourth message is used to determine one of a plurality of scaling factors. In some examples, the acquisition unit is configured to receive a third message, wherein the third message includes a plurality of scaling factors; receive a fourth message, wherein the fourth message includes scaling factor indication information; and acquire the scaling factor indicated by the scaling factor indication information from the plurality of scaling factors.

[0365] In some embodiments, the fourth message is DCI or MAC-CE.

[0366] In some embodiments, the scaling factor is determined based on a predefined criterion, wherein the predefined criterion is an interval length, which is either the length of the previous time-domain resource or the length between the first transmission timing of the previous time-domain resource and the first transmission timing of the current time-domain resource.

[0367] In some embodiments, the scaling factor is determined based on a third message and a predefined criterion, wherein the third message includes a scaling factor and the predefined criterion is an interval length. In some embodiments, the product of the scaling factor and the interval length is used as the scaling factor.

[0368] For example, Figure 11 The device 1100 can be implemented as a terminal device 120, or as a chip or chip system in the terminal device 120, and the embodiments of this disclosure are not limited thereto. Figure 11 The device 1100 in the middle can be used to achieve the above-mentioned combination. Figure 8 For the sake of brevity, the various processes described in the terminal device 120 will not be repeated here.

[0369] Figure 12 Another schematic block diagram of a communication apparatus 1200 according to an embodiment of the present disclosure is shown. The apparatus 1200 may be implemented at the access network device 110, or may be implemented as a chip or chip system in the access network device 110, and the scope of the present disclosure is not limited in this respect.

[0370] like Figure 12As shown, the apparatus 1200 may include a transmitting unit 1210 and a receiving unit 1220. The transmitting unit 1210 is configured to transmit power indication information to the terminal device, wherein the power indication information indicates a power adjustment value for the current time-domain resource, the power indication information including TPC indication information, the current time-domain resource including at least two transmission opportunities, or the previous time-domain resource including at least two transmission opportunities. The receiving unit 1220 is configured to receive a transmission from the terminal device at the transmitted power on the current time-domain resource, the TPC indication information serving as the basis for determining the transmitted power.

[0371] In some embodiments, the number of bits occupied by the TPC indication information is greater than 2.

[0372] In some embodiments, the power adjustment value indicated by the TPC indication information is determined from a set of values ​​that includes at least one value greater than 4.

[0373] In some embodiments, the number of elements in the set of values ​​is greater than 4.

[0374] In some embodiments, the sending unit 1210 is further configured to send a third message to the terminal device 120, the third message being used by the terminal device 120 to determine the transmit power, wherein the third message is carried in RRC signaling and includes a scaling factor or scaling factor.

[0375] In some embodiments, the transmitting unit 1210 is further configured to: send a third message to the terminal device 120, the third message including a plurality of scaling factors; and send a fourth message to the terminal device 120, the fourth message being used to determine one of the plurality of scaling factors, wherein the third message is carried in RRC signaling, the fourth message being DCI or MAC-CE, and the third message and the fourth message being used by the terminal device 120 to determine the transmit power.

[0376] In some embodiments, the sending unit 1210 is further configured to send configuration information to the terminal device 120, wherein the configuration information is used to configure multiple sets.

[0377] In some embodiments, the sending unit 1210 is further configured to send set indication information to the terminal device 120, for the terminal device 120 to determine the set of values ​​from multiple sets.

[0378] For example, Figure 12 The device 1200 can be implemented as an access network device 110, or as a chip or chip system in the access network device 110, and the embodiments of this disclosure are not limited thereto. Figure 12 The device 1200 in the middle can be used to achieve the above-mentioned combination. Figure 9For brevity, the various processes described above with respect to the access network device 110 will not be repeated here.

[0379] Figure 13 A simplified block diagram of an example apparatus 1300 according to embodiments of the present disclosure is shown. The apparatus 1300 can be used to implement a terminal device 120 or an access network device 110 as shown in Figure 1 FIG. 1. As shown, the apparatus 1300 includes one or more processors 1310, one or more memories 1320 coupled to the processors 1310, and a communication module 1340 coupled to the processors 1310.

[0380] The communication module 1340 can be used for bi-directional communication. The communication module 1340 can have at least one communication interface for communication. The communication interface can include any interface necessary to communicate with other devices.

[0381] The processor 1310 can be of any type suitable to the local technical network and can include, among others, at least one of the following: a general purpose computer, a special purpose computer, a microcontroller, a Digital Signal Processor (DSP), or one or more of a multi-core controller-based architecture. The apparatus 1300 can have multiple processors, for example, application specific integrated circuit chips, which are time-slaved to a clock that is synchronized with the main processor.

[0382] The memory 1320 can include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, at least one of the following: Read-Only Memory (ROM) 1324, Erasable Programmable Read Only Memory (EPROM), flash memory, a hard disk, a Compact Disc (CD), a Digital Versatile Disc (DVD), or other magnetic storage and / or optical storage. Examples of volatile memories include, but are not limited to, at least one of the following: Random Access Memory (RAM) 1322, or other volatile memory that does not persist in the event of a power duration.

[0383] The computer program 1330 includes computer executable instructions executed by the associated processor 1310. The program 1330 can be stored in the ROM 1324. The processor 1310 can perform any suitable action and processing by loading the program 1330 into the RAM 1322.

[0384] Embodiments of the present disclosure can be implemented with the aid of program 1330, such that apparatus 1300 can perform any of the processes discussed with reference to Figures 2 to 9 Embodiments of the present disclosure can also be implemented by hardware or by a combination of software and hardware.

[0385] In some embodiments, program 1330 can be tangibly embodied in a computer- readable medium, which can include a memory in apparatus 1300, such as memory 1320, or other storage devices accessible by apparatus 1300. Program 1330 can be loaded from the computer-readable medium into RAM 1322 for execution by the processor. The computer-readable medium can include any type of tangible non-transitory memory, such as ROM, EPROM, flash memory, hard disk, CD-ROM, DVD, etc.

[0386] In some embodiments, communication module 1340 in apparatus 1300 can be implemented as a transmitter and a receiver (or transceiver), which can be configured to receive RRC and / or DCI, etc., transmit PUSCH and / or PUCCH, etc. In addition, apparatus 1300 can further include one or more of a scheduler, a controller, a radio frequency / antenna, which will not be elaborated in the present disclosure.

[0387] Exemplarily, Figure 13 Apparatus 1300 in the above embodiments can be implemented as terminal device 120 or access network device 110, or can be implemented as a chip or chip system in terminal device 120, or can be implemented as a chip or chip system in access network device 110, and embodiments of the present disclosure are not limited thereto.

[0388] Embodiments of the present disclosure also provide a chip, which can include an input interface, an output interface, and a processing circuit. In embodiments of the present disclosure, the interaction of the above signaling or data can be completed by the input interface and the output interface, and the generation and processing of the signaling or data information can be completed by the processing circuit.

[0389] Embodiments of the present disclosure also provide a chip system, which includes a processor for supporting terminal device 120 or access network device 110 to implement the functions involved in any of the above embodiments. In a possible design, the chip system can also include a memory for storing necessary program instructions and data, which, when the processor runs the program instructions, causes the device in which the chip system is installed to implement the methods involved in any of the above embodiments. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0390] Embodiments of the present disclosure further provide a processor for coupling with a memory, the memory storing instructions which, when executed by the processor, cause the processor to perform the methods and functions involving the terminal device 120 or the access network device 110 in any of the above embodiments.

[0391] Embodiments of the present disclosure further provide a computer program product containing instructions which, when executed on a computer, cause the computer to perform the methods and functions involving the terminal device 120 or the access network device 110 in any of the above embodiments.

[0392] Embodiments of the present disclosure further provide a computer readable storage medium having computer instructions stored thereon, which, when executed by a processor, cause the processor to perform the methods and functions involving the terminal device 120 or the access network device 110 in any of the above embodiments.

[0393] Embodiments of the present disclosure further provide a wireless communication system, which includes a terminal device and an access network device.

[0394] In general, the various embodiments of the present disclosure can be implemented in hardware or special-purpose circuits, software, logic or any combination thereof. Some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software which can be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that these blocks, apparatus, systems, techniques or methods described herein can be implemented in, as non-limiting examples, hardware, software, firmware, special-purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.

[0395] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, for example, instructions included in program modules, executed by devices at a target real or virtual processor to perform processes / methods as described above with reference to Figures 2 to 9 Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform particular tasks or implement particular abstract data types. In various embodiments, the functionality of the program modules can be combined or split between program modules as desired. Machine executable instructions for program modules can be executed within a local or distributed device. In a distributed device, program modules can be located in local and remote memory storage devices.

[0396] Computer program code for carrying out operations of the methods of the present disclosure can be written in one or more programming languages. These computer program codes can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the program codes, which execute via the computer or other programmable data processing apparatus, cause the functions / operations specified in the flow diagrams and / or block diagrams to be implemented. The program code can be entirely on the computer, partially on the computer, as a stand-alone software package, partially on the computer and partially on a remote computer, or entirely on a remote computer or server.

[0397] In the context of the present disclosure, computer program code or related data can be embodied by any suitable carrier wave, including a signal, computer readable medium, or the like. Examples of a signal can include, but are not limited to, electro-magnetic waves, radio waves, sound waves, or other forms of propagated signals.

[0398] A computer readable medium can be any tangible medium that contains or stores the program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable medium can be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a computer readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), and a digital versatile disc (DVD), or any suitable combination of the foregoing.

[0399] Moreover, while operations of the methods of the present disclosure are described in a particular order in the drawings, this is not required or implied in any particular order for performing the operations, or that all of the illustrated operations be performed to achieve desirable results. Rather, the steps depicted in the flowcharts can be altered in execution order. Additionally or alternatively, certain steps can be omitted, combined into a single step, and / or broken into multiple steps. It is also noted that features and functionalities of two or more devices according to the present disclosure can be embodied in one device. Conversely, features and functionalities of one device described above can be further divided into multiple devices.

[0400] Having described various implementations of the disclosure above, the descriptions are not exhaustive and do not limit the implementations to the disclosed implementations. Numerous modifications and adaptations thereof will be apparent to those skilled in the art without departing from the scope and spirit of the described implementations. The scope of the described implementations is defined by the appended claims, rather than the description of the described implementations. Terms of the description used herein are chosen for the purpose of explaining various implementations, not for purposes of limitation.

Claims

1. A transmission method, comprising: determining, by a terminal device, a power control adjustment value at a current transmission occasion based on an actual time domain window before the current transmission occasion, wherein the actual time domain window is formed by a configured nominal time domain window being interrupted by interrupted time domain resources, the actual time domain window comprises at least two transmission occasions, the at least two transmission occasions have the same transmission characteristic information, a first transmission occasion in the actual time domain window is a starting transmission occasion, the actual time domain window is used for joint channel estimation, and the starting transmission occasion in the actual time domain window and the current transmission occasion after the actual time domain window further comprise interrupted time domain resources which are not used for joint channel estimation; determining, by the terminal device, a transmission power of the current transmission occasion based on the power control adjustment value; and transmitting, by the terminal device, at the current transmission occasion with the transmission power. 2.The method of claim 1, wherein the determining the power control adjustment value at the current transmission occasion comprises: determining the power control adjustment value at the current transmission occasion based on an initial power control adjustment value of the starting transmission occasion of the actual time domain window and an accumulation of a first parameter value in all downlink control information (DCI) received between a first time associated with the starting transmission occasion and a second time associated with the current transmission occasion. 3.The method of claim 1, wherein the determining the power control adjustment value at the current transmission occasion comprises: determining a scaling factor based on the actual time domain window; obtaining a second parameter value corresponding to a TPC command field parameter in DCI from an access network device; and determining the power control adjustment value at the current transmission occasion based on the second parameter value and the scaling factor. 4.The method of claim 3, wherein the determining the scaling factor based on the actual time domain window comprises: determining the scaling factor based on a total length between the starting transmission occasion and the current transmission occasion of the actual time domain window; or determining the scaling factor based on a length of the actual time domain window. 5.The method of claim 3, wherein the determining the scaling factor based on the actual time domain window comprises: obtaining an interval length, wherein the interval length is a total length between the starting transmission occasion and the current transmission occasion of the actual time domain window or a length of the actual time domain window; and obtaining the scaling factor corresponding to the interval length based on a corresponding relationship between interval length and scaling factor, wherein the corresponding relationship is configured by RRC of the access network device or predefined. 6.The method of claim 3, wherein the determining the scaling factor based on the actual time domain window comprises: obtaining an interval length, wherein the interval length is a total length between the starting transmission occasion and the current transmission occasion of the actual time domain window or a length of the actual time domain window; obtaining a scaling factor in RRC signaling or DCI from the access network device; and determining the scaling factor based on the scaling factor and the interval length. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ determine the scaling factor based on the interval length and the scaling factor. 7.The method of any one of claims 3-6, wherein determining a power control adjustment value at the current transmission occasion based on the second parameter value and the scaling factor comprises: determining the power control adjustment value at the current transmission occasion based on a product of the second parameter value and the scaling factor. 8.The method of claim 1, wherein the determining a power control adjustment value at the current transmission occasion comprises: obtaining an interval length, wherein the interval length is a total length between the starting transmission occasion and the current transmission occasion of the actual time domain window or a length of the actual time domain window; obtaining a TPC command field parameter from a DCI of an access network device; and determining the power control adjustment value at the current transmission occasion based on the interval length and the TPC command field parameter. 9.A communication apparatus comprising: a first determining unit configured to determine a power control adjustment value at a current transmission occasion based on an actual time domain window before the current transmission occasion, wherein the actual time domain window is formed by a configured nominal time domain window being interrupted by interrupted time domain resources, the actual time domain window comprises at least two transmission occasions, and the at least two transmission occasions have a same transmission characteristic information, a first transmission occasion in the actual time domain window is a starting transmission occasion, the actual time domain window is used for joint channel estimation, and the starting transmission occasion in the actual time domain window and the current transmission occasion after the actual time domain window further comprise interrupted time domain resources which are not used for joint channel estimation; a second determining unit configured to determine a transmission power of the current transmission occasion based on the power control adjustment value; and a transmission unit configured to transmit at the current transmission occasion with the transmission power. 10.The apparatus of claim 9, wherein the first determining unit is configured to: determine the power control adjustment value at the current transmission occasion based on an initial power control adjustment value of the starting transmission occasion of the actual time domain window and an accumulation, wherein the accumulation is an accumulation of first parameter values in all downlink control information (DCI) received between a first time associated with the starting transmission occasion and a second time associated with the current transmission occasion. 11.The apparatus of claim 9, wherein the first determining unit is configured to: determine a scaling factor based on the actual time domain window; obtain a second parameter value corresponding to a TPC command field parameter in a DCI from an access network device; and determine the power control adjustment value at the current transmission occasion based on the second parameter value and the scaling factor. 12.The apparatus of claim 11, wherein the first determining unit is configured to: determine the scaling factor based on a total length between the starting transmission occasion and the current transmission occasion of the actual time domain window; or determine the scaling factor based on a length of the actual time domain window. ​ ​ ​ 13.The apparatus of claim 11, wherein the first determining unit is configured to: obtain an interval length, wherein the interval length is a total length between the starting transmission occasion and the current transmission occasion of the actual time domain window or a length of the actual time domain window; and obtain the scaling factor corresponding to the interval length based on a correspondence between interval lengths and scaling factors, wherein the correspondence is configured by a RRC of an access network device or predefined. 14.The apparatus of claim 11, wherein the first determining unit is configured to: obtain an interval length, wherein the interval length is a total length between the starting transmission occasion and the current transmission occasion of the actual time domain window or a length of the actual time domain window; obtain a scaling factor in RRC signaling or DCI from an access network device; and determine the scaling factor based on the interval length and the scaling factor. 15.The apparatus of any one of claims 11-14, wherein the first determining unit is configured to: determine the power control adjustment value at the current transmission occasion based on a product of the second parameter value and the scaling factor. 16.The apparatus of claim 9, wherein the first determining unit is configured to: obtain an interval length, wherein the interval length is a total length between the starting transmission occasion and the current transmission occasion of the actual time domain window or a length of the actual time domain window; obtain a TPC command field parameter in DCI from an access network device; and determine the power control adjustment value at the current transmission occasion based on the interval length and the TPC command field parameter. 17.A computer-readable storage medium having instructions stored thereon that, when executed on a computer, cause the computer to perform the method of any one of claims 1-8. 18.A chip comprising processing circuitry configured to perform the method of any one of claims 1-8. 19.A transmission method, comprising: sending, by an access network device, power indication information to a terminal device, wherein the power indication information is used to indicate a power adjustment value of a current time domain resource, the power indication information comprises transmission power control (TPC) indication information, the current time domain resource comprises at least two transmission occasions or a previous time domain resource of the current time domain resource comprises at least two transmission occasions, and the at least two transmission occasions have the same sending characteristic information, the previous time domain resource of the current time domain resource is an actual time domain window formed by interrupting a configured nominal time domain window by an interrupt time domain resource, a first transmission occasion in the actual time domain window is a starting transmission occasion, the actual time domain window is used for joint channel estimation, and the starting transmission occasion in the actual time domain window and a current transmission occasion after the actual time domain window further comprise an interrupt time domain resource which is not used for joint channel estimation. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The access network device receives the transmission of the terminal device with a transmit power on the current time domain resource, and the TPC indication information is a basis for determining the transmit power.

20. The method of claim 19, wherein a number of bits occupied by the TPC indication information is greater than 2.

21. The method of claim 19, wherein a power adjustment value indicated by the TPC indication information is determined from a value set, the value set comprising at least one value greater than 4.

22. The method of claim 21, wherein a number of elements in the value set is greater than 4.

23. The method of claim 20, wherein a power adjustment value indicated by the TPC indication information is determined from a value set, the value set comprising at least one value greater than 4.

24. The method of claim 23, wherein a number of elements in the value set is greater than 4.

25. The method of any one of claims 19-24, further comprising: The access network device sends a third message to the terminal device, the third message comprising a scaling factor or a scaling factor, the scaling factor or the scaling factor being used to determine the transmit power.

26. The method of any one of claims 19-24, further comprising: The access network device sends a third message to the terminal device, wherein the third message comprises a plurality of scaling factors; The access network device sends a fourth message to the terminal device, wherein the fourth message is used to indicate one of the plurality of scaling factors, the scaling factor indicated by the fourth message being used to determine the transmit power.

27. The method of any one of claims 19-24, further comprising: The access network device sends configuration information to the terminal device, wherein the configuration information is used to configure a plurality of sets; The access network device sends set indication information to the terminal device, wherein the set indication information is used to indicate one of the plurality of sets.

28. The method of claim 25, further comprising: The access network device sends configuration information to the terminal device, wherein the configuration information is used to configure a plurality of sets; The access network device sends set indication information to the terminal device, wherein the set indication information is used to indicate one of the plurality of sets.

29. The method of claim 26, further comprising: The access network device sends configuration information to the terminal device, wherein the configuration information is used to configure a plurality of sets; The access network device sends set indication information to the terminal device, wherein the set indication information is used to indicate one of the plurality of sets.

30. A communication apparatus, comprising a processor and a memory; wherein The memory stores a computer program; The processor invokes the computer program in the memory to cause the communication apparatus to perform the method of any one of claims 19-29.

31. A computer program product containing instructions which, when executed on a computer, cause the computer to carry out the method of any one of claims 1-8 or 19-29.

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