Power headroom information transmission method, device and storage medium

Abstract

The present application relates to a power headroom information transmission method, a device and a storage medium. The method comprises: sending a first message, the first message comprising indication information, the indication information being used for indicating whether the first message comprises first information, the first information being power headroom information corresponding to when a terminal device uses a first waveform to perform uplink transmission, and the first waveform being different from a waveform used by the terminal device for current uplink transmission. In this way, power headroom information corresponding to uplink transmission by the first waveform can be reported by means of the first message, thereby improving the flexibility and reliability of power control.

Description

Power headroom information transmission method, device and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a method, device, and storage medium for transmitting power headroom information. Background Art

[0002] In a wireless communication system, in order to perform uplink power control, a terminal device may report power headroom information.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a power headroom information transmission method, device, and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a method for transmitting power headroom information is proposed, the method comprising:

[0006] A first message is sent, wherein the first message includes indication information, and the indication information is used to indicate whether the first message contains first information, wherein the first information is the power margin information corresponding to when the terminal device uses a first waveform for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

[0007] According to a second aspect of an embodiment of the present disclosure, a method for transmitting power headroom information is proposed, the method comprising:

[0008] A first message is received, wherein the first message includes indication information, wherein the indication information is used to indicate whether the first message contains first information, wherein the first information is the power margin information corresponding to when the terminal device uses a first waveform for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

[0009] According to a third aspect of an embodiment of the present disclosure, a terminal device is provided, including:

[0010] The transceiver module is configured to send a first message, wherein the first message includes indication information, and the indication information is used to indicate whether the first message contains first information. The first information is the power margin information corresponding to the terminal device using a first waveform for uplink transmission, and the first waveform is different from the waveform currently used for uplink transmission by the terminal device.

[0011] According to a fourth aspect of an embodiment of the present disclosure, a network device is provided, including:

[0012] The transceiver module is configured to receive a first message, wherein the first message includes indication information, and the indication information is used to indicate whether the first message contains first information. The first information is the power margin information corresponding to the terminal device using a first waveform for uplink transmission, and the first waveform is different from the waveform currently used for uplink transmission by the terminal device.

[0013] According to a third aspect of an embodiment of the present disclosure, a communication device is proposed, comprising: one or more processors; wherein the communication device can be used to execute an optional implementation of the first aspect or the second aspect.

[0014] According to a sixth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first aspect or the second aspect.

[0015] The technical solution provided by the embodiments of the present disclosure can include the following beneficial effects: a first message is sent, the first message including indication information, the indication information being used to indicate whether the first message includes first information, the first information being power headroom information corresponding to when a terminal device uses a first waveform for uplink transmission, the first waveform being different from the waveform currently used by the terminal device for uplink transmission. In this way, the power headroom information corresponding to the use of the first waveform for uplink transmission can be reported via the first message, thereby improving the flexibility and reliability of power control.

[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0018] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0019] FIG2 is a schematic flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure.

[0020] FIG3A is a schematic diagram showing a first message according to an embodiment of the present disclosure.

[0021] FIG3B is a schematic diagram showing a first message according to an embodiment of the present disclosure.

[0022] FIG3C is a schematic diagram showing a first message according to an embodiment of the present disclosure.

[0023] FIG4A is a schematic diagram showing a first message according to an embodiment of the present disclosure.

[0024] FIG4B is a schematic diagram showing a first message according to an embodiment of the present disclosure.

[0025] FIG4C is a schematic diagram showing a first message according to an embodiment of the present disclosure.

[0026] FIG4D is a schematic diagram showing a first message according to an embodiment of the present disclosure.

[0027] FIG4E is a schematic diagram showing a first message according to an embodiment of the present disclosure.

[0028] FIG4F is a schematic diagram showing a first message according to an embodiment of the present disclosure.

[0029] FIG5A is a schematic flow chart showing a method for transmitting power headroom information according to an embodiment of the present disclosure.

[0030] FIG5B is a schematic flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure.

[0031] FIG5C is a schematic flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure.

[0032] FIG6A is a schematic flow chart showing a method for transmitting power headroom information according to an embodiment of the present disclosure.

[0033] FIG6B is a schematic flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure.

[0034] FIG6C is a schematic flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure.

[0035] FIG6D is a schematic flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure.

[0036] FIG7 is a schematic flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure.

[0037] FIG8 is a schematic flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure.

[0038] FIG9A is a schematic structural diagram of a terminal-side device according to an embodiment of the present disclosure.

[0039] FIG9B is a schematic structural diagram of a network-side device according to an embodiment of the present disclosure.

[0040] FIG10A is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.

[0041] FIG10B is a schematic structural diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0042] The embodiments of the present disclosure provide a power headroom information transmission method, device, and storage medium.

[0043] In a first aspect, an embodiment of the present disclosure provides a method for transmitting power headroom information, the method comprising:

[0044] A first message is sent, wherein the first message includes indication information, and the indication information is used to indicate whether the first message contains first information, wherein the first information is the power margin information corresponding to when the terminal device uses a first waveform for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

[0045] In the above embodiment, the power headroom information corresponding to uplink transmission using the first waveform can be reported through the first message, thereby improving the flexibility and reliability of power control.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, when a first condition is met, the indication information is used to indicate that the first message does not include the first information;

[0047] The first condition includes at least one of the following:

[0048] The terminal device does not perform physical uplink shared channel PUSCH transmission in the serving cell;

[0049] The terminal device does not support the use of the first waveform for uplink transmission in the serving cell.

[0050] In the above embodiment, whether the first information is included in the first message may be determined according to the capability and / or status of the terminal device.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the first message is a power headroom report medium access control element PHR MAC CE.

[0052] In the above embodiment, the first information may be reported through the PHR MAC CE.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the PHR MAC CE is a single-entry Single Entry PHR MAC CE, and the indication information is at least one bit of the Single Entry PHR MAC CE.

[0054] In the above embodiment, the first information may be reported via the Single Entry PHR MAC CE.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments,

[0056] The indication information is a preset first value, and the Single Entry PHR MAC CE includes the first information; or,

[0057] The indication information is not the first value, and the Single Entry PHR MAC CE does not include the first information.

[0058] In the above embodiment, it is possible to flexibly determine whether the Single Entry PHR MAC CE includes the first information, thereby improving the flexibility of reporting the power headroom information.

[0059] In combination with some embodiments of the first aspect, in some embodiments, the Single Entry PHR MAC CE is an Enhanced Single Entry PHR MAC CE containing multiple candidate beams or an Enhanced Single Entry PHR for multiple TRP MAC CE containing multiple transmission / reception points TRP.

[0060] In the above embodiment, in a multi-candidate beam or multi-TRP scenario, the first information can be reported through the Single Entry PHR MAC CE, thereby enriching the scenario of power headroom information reporting.

[0061] In combination with some embodiments of the first aspect, in some embodiments, the PHR MAC CE is a multiple-entry Multiple Entry PHR MAC CE, the Multiple Entry PHR MAC CE includes multiple power headroom parameter groups, one power headroom parameter group corresponds to one serving cell, and the indication information includes multiple indication parameters, one indication parameter corresponds to one serving cell.

[0062] In the above embodiment, the first information may be reported via the Multiple Entry PHR MAC CE.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, one piece of first information corresponds to one serving cell, wherein:

[0064] One indication parameter satisfies the second condition, the Multiple Entry PHR MAC CE includes first information corresponding to a serving cell, and the serving cell is the serving cell corresponding to the one indication parameter; or,

[0065] An indication parameter does not meet the second condition, and the Multiple Entry PHR MAC CE does not include the first information corresponding to the serving cell.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the indication parameter includes a first indication bit and / or a second indication bit, and the second condition includes any one of the following:

[0067] The first indication bit is a second value;

[0068] The second indication bit is a third value;

[0069] The first indication bit is the second value, and the second indication bit is the third value;

[0070] The first indication bit is the second value, the second indication bit is the third value, and the power headroom type is the first type, where the power headroom type is a parameter in a power headroom parameter group corresponding to the serving cell.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments,

[0072] The power headroom parameter group includes the first indication bit; or,

[0073] The power headroom parameter group does not include the second indication bit, and multiple second indication bits are included in at least one byte of the Multiple Entry PHR MAC CE.

[0074] In the above embodiment, it is possible to flexibly determine whether the Multiple Entry PHR MAC CE includes the first information, thereby improving the flexibility of reporting the power headroom information.

[0075] In combination with some embodiments of the first aspect, in some embodiments, the Multiple Entry PHR MAC CE is an Enhanced Multiple Entry PHR MAC CE containing multiple candidate beams or an Enhanced Multiple Entry PHR for multiple TRP MAC CE containing multiple transmission / reception points TRP.

[0076] In the above embodiment, in a multi-candidate beam or multi-TRP scenario, the first information can be reported through the Multiple Entry PHR MAC CE, thereby enriching the scenario of power headroom information reporting.

[0077] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0078] At least one downlink control information DCI format of the first bandwidth BWP is configured with dynamic waveform switching DWS, and the Multiple Entry PHR MAC CE includes first information corresponding to the first serving cell;

[0079] The first BWP is at least one of the following:

[0080] The activated BWP of the first serving cell is configured with PDCCH resources, and the first BWP is the activated BWP of the first serving cell;

[0081] The activated BWP of the first serving cell is not configured with PDCCH resources, the first BWP is the activated BWP of the second serving cell, and the second serving cell is used to schedule the first serving cell.

[0082] In the above embodiment, whether to report the first information can be flexibly determined, which further improves the flexibility of reporting the power headroom information.

[0083] With reference to some embodiments of the first aspect, in some embodiments, sending the first message includes:

[0084] At least one downlink control information DCI format of the second bandwidth BWP is configured with dynamic waveform switching DWS, and the first message is sent. The second BWP is the activated BWP of the primary serving cell of the terminal device.

[0085] In the above embodiment, whether to report the first information can be flexibly determined, which further improves the flexibility of reporting the power headroom information.

[0086] In combination with some embodiments of the first aspect, in some embodiments, the first message also includes second information, and the second information is the power margin information corresponding to when the terminal device uses a second waveform for uplink transmission, and the second waveform is the waveform currently used by the terminal device.

[0087] In the above embodiment, the first information and the second information may be reported simultaneously, thereby improving the reliability of the power headroom information reporting.

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

[0089] A second message is received, where the second message includes third information, where the third information is used to indicate whether at least one downlink control information DCI format of the partial bandwidth BWP used by the terminal device is configured with dynamic waveform switching DWS.

[0090] In the above embodiment, whether to configure the DWS can be determined according to the third information, thereby improving the flexibility of the DWS configuration.

[0091] In a second aspect, an embodiment of the present disclosure provides a method for transmitting power headroom information, the method comprising:

[0092] A first message is received, wherein the first message includes indication information, wherein the indication information is used to indicate whether the first message contains first information, wherein the first information is the power margin information corresponding to when the terminal device uses a first waveform for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

[0093] In the above embodiment, the power headroom information corresponding to uplink transmission using the first waveform can be reported through the first message, thereby improving the flexibility and reliability of power control.

[0094] In conjunction with some embodiments of the second aspect, in some embodiments, the first condition is met, and the indication information is used to indicate that the first message does not include the first information;

[0095] The first condition includes at least one of the following:

[0096] The terminal device does not perform physical uplink shared channel PUSCH transmission in the serving cell;

[0097] The terminal device does not support the use of the first waveform for uplink transmission in the serving cell.

[0098] In combination with some embodiments of the second aspect, in some embodiments, the first message is a power headroom report medium access control element PHR MAC CE.

[0099] In combination with some embodiments of the second aspect, in some embodiments, the PHR MAC CE is a single-entry Single Entry PHR MAC CE, and the indication information is at least one bit of the Single Entry PHR MAC CE.

[0100] In conjunction with some embodiments of the second aspect, in some embodiments,

[0101] The indication information is a preset first value, and the Single Entry PHR MAC CE includes the first information; or,

[0102] The indication information is not the first value, and the Single Entry PHR MAC CE does not include the first information.

[0103] In combination with some embodiments of the second aspect, in some embodiments, the Single Entry PHR MAC CE is an Enhanced Single Entry PHR MAC CE containing multiple candidate beams or an Enhanced Single Entry PHR for multiple TRP MAC CE containing multiple transmission / reception points TRP.

[0104] In combination with some embodiments of the second aspect, in some embodiments, the PHR MAC CE is a multiple-entry Multiple Entry PHR MAC CE, the Multiple Entry PHR MAC CE includes multiple power headroom parameter groups, one power headroom parameter group corresponds to one serving cell, and the indication information includes multiple indication parameters, one indication parameter corresponds to one serving cell.

[0105] In conjunction with some embodiments of the second aspect, in some embodiments, one piece of first information corresponds to one serving cell, wherein:

[0106] One indication parameter satisfies the second condition, the Multiple Entry PHR MAC CE includes first information corresponding to a serving cell, and the serving cell is the serving cell corresponding to the one indication parameter; or,

[0107] An indication parameter does not meet the second condition, and the Multiple Entry PHR MAC CE does not include the first information corresponding to the serving cell.

[0108] In conjunction with some embodiments of the second aspect, in some embodiments, the indication parameter includes a first indication bit and / or a second indication bit, and the second condition includes any one of the following:

[0109] The first indication bit is a second value;

[0110] The second indication bit is a third value;

[0111] The first indication bit is the second value, and the second indication bit is the third value;

[0112] The first indication bit is the second value, the second indication bit is the third value, and the power headroom type is the first type, where the power headroom type is a parameter in a power headroom parameter group corresponding to the serving cell.

[0113] In conjunction with some embodiments of the second aspect, in some embodiments,

[0114] The power headroom parameter group includes the first indication bit; or,

[0115] The power headroom parameter group does not include the second indication bit, and multiple second indication bits are included in at least one byte of the Multiple Entry PHR MAC CE.

[0116] In combination with some embodiments of the second aspect, in some embodiments, the Multiple Entry PHR MAC CE is an Enhanced Multiple Entry PHR MAC CE containing multiple candidate beams or an Enhanced Multiple Entry PHR for multiple TRP MAC CE containing multiple transmission / reception points TRP.

[0117] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0118] At least one downlink control information DCI format of the first bandwidth BWP is configured with dynamic waveform switching DWS, and the Multiple Entry PHR MAC CE includes first information corresponding to the first serving cell;

[0119] The first BWP is at least one of the following:

[0120] The activated BWP of the first serving cell is configured with PDCCH resources, and the first BWP is the activated BWP of the first serving cell;

[0121] The activated BWP of the first serving cell is not configured with PDCCH resources, the first BWP is the activated BWP of the second serving cell, and the second serving cell is used to schedule the first serving cell.

[0122] In conjunction with some embodiments of the second aspect, in some embodiments, receiving the first information includes:

[0123] At least one downlink control information DCI format of the second bandwidth BWP is configured with dynamic waveform switching DWS, and the first message is received. The second BWP is the activated BWP of the primary serving cell of the terminal device.

[0124] In combination with some embodiments of the second aspect, in some embodiments, the first message also includes second information, and the second information is the power margin information corresponding to when the terminal device uses a second waveform for uplink transmission, and the second waveform is the waveform currently used by the terminal device.

[0125] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0126] A second message is sent, where the second message includes third information, where the third information is used to indicate whether at least one downlink control information DCI format of the partial bandwidth BWP used by the terminal device is configured with dynamic waveform switching DWS.

[0127] In a third aspect, an embodiment of the present disclosure provides a method for transmitting power headroom information, the method comprising:

[0128] The terminal device sends a first message to the network device, and the first message includes indication information, and the indication information is used to indicate whether the first message contains first information. The first information is the power margin information corresponding to the terminal device using a first waveform for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

[0129] In the above embodiment, the power headroom information corresponding to uplink transmission using the first waveform can be reported through the first message, thereby improving the flexibility and reliability of power control.

[0130] In a fourth aspect, an embodiment of the present disclosure proposes a terminal device, which may include at least one of a transceiver module and a processing module; wherein the terminal device can be used to execute the optional implementation method of the first aspect.

[0131] In a fifth aspect, an embodiment of the present disclosure proposes a network device, which may include at least one of a transceiver module and a processing module; wherein the network device can be used to execute the optional implementation method of the second aspect.

[0132] In a sixth aspect, an embodiment of the present disclosure proposes a communication device, which may include: one or more processors; wherein the communication device can be used to execute an optional implementation of the first aspect or the second aspect.

[0133] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, which may include: a terminal device and a network device; wherein the terminal device is configured to execute the method described in the optional implementation manner of the first aspect, and the network device is configured to execute the method described in the optional implementation manner of the second aspect.

[0134] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first aspect or the second aspect.

[0135] In a ninth aspect, an embodiment of the present disclosure proposes a program product, which, when executed by a communication device, enables the communication device to execute the method described in the optional implementation manner of the first aspect or the second aspect.

[0136] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first aspect or the second aspect.

[0137] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first aspect or the second aspect.

[0138] It is understandable that the above-mentioned terminal devices, network devices, communication devices, communication systems, storage media, program products, computer programs, chips, or chip systems can all be used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0139] The present disclosure provides a method, device, and storage medium for transmitting power headroom information. In some embodiments, the terms "power headroom information transmission method" and "information processing method" and "communication method" are interchangeable; "power headroom information transmission device" and "information processing device" and "communication device" are interchangeable; and "information processing system" and "communication system" are interchangeable.

[0140] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0141] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0142] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0143] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0144] In some embodiments, "plurality" may refer to two or more.

[0145] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0146] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0147] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0148] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0149] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0150] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0151] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0152] In some embodiments, devices and the like can be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as "device," "equipment," "device," "circuit," "network element," "node," "function," "unit," "section," "system," "network," "chip," "chip system," "entity," and "subject" can be used interchangeably.

[0153] In some embodiments, "network" can be interpreted as devices included in the network (eg, network equipment, access network equipment, core network equipment, etc.).

[0154] In some embodiments, the network device may include at least one of an access network device and a core network device.

[0155] In some embodiments, the terms "Access Network Device (AN Device)", "Radio Access Network Device (RAN Device)", "Base Station (BS)", "Radio Base Station (Radio Base Station)", "Fixed Station (Fixed Station)", "Node (Node)", "Access Point (Access Point)", "Transmission Point (TP)", "Reception Point (RP)", "Transmission and / or Reception Point (TRP))", "Panel (Panel)", "Antenna Panel (Antenna Panel)", "Antenna Array (Antenna Array)" "Cell (Cell)", "Macro Cell (Macro Cell)", "Small Cell (Small Cell)", "Femto Cell (Femto Cell)", "Pico Cell (Pico Cell)" "Sector (Sector)", "Cell Group (Cell Group)", "Serving Cell (Cell)", "Carrier (Carrier)", "Component Carrier (Component Carrier)", "Bandwidth Part (BWP)" and the like may be used interchangeably.

[0156] In some embodiments, the terms "terminal", "terminal device", "terminal side device", "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station (Subscriber Station), mobile unit (Mobile Unit), subscriber unit (Subscriber Unit), wireless unit (Wireless Unit), remote unit (Remote Unit), mobile device (Mobile Device), wireless device (Wireless Device), wireless communication device (Wireless Communication Device), remote device (Remote Device), mobile subscriber station (Mobile Subscriber Station), access terminal (Access Terminal), mobile terminal (Mobile Terminal), wireless terminal (Wireless Terminal), remote terminal (Remote Terminal), handset (Handset), user agent (User Agent), mobile client (Mobile Client), client (Client) and the like can be used interchangeably.

[0157] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal device. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal device is replaced by the communication between multiple terminal devices (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal device has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminal devices (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels or direct channels, and uplinks, downlinks, etc. can be replaced by side links or direct links.

[0158] In some embodiments, the terminal device may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal device.

[0159] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0160] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0161] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0162] FIG1 is a schematic diagram illustrating an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , the communication system 100 may include a terminal device 101 and a network device 102 .

[0163] In some embodiments, the terminal device 101 may include at least one of a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, and a wireless terminal device in smart home, but is not limited thereto.

[0164] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0165] In some embodiments, the access network device may be a node or device that accesses the terminal device to the wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0166] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0167] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit (Control Unit). The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0168] In some embodiments, the core network device may be a single device, or may be multiple devices or a group of devices. The core network may include at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0169] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0170] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are examples. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationship between the entities is an example. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0171] The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.17 (WiMAX (registered trademark)), IEEE 802.18 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (WiMAX (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (WiMAX (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0172] In wireless communication systems, one of the bottlenecks of uplink coverage is the Physical Random Access Channel (PRACH). In some embodiments, to improve PRACH coverage, the communication system may implement a solution based on multiple PRACH transmissions, whereby a terminal device transmits multiple message 1 (MSG1) transmissions in a single random access attempt. Multiple MSG1 transmissions sent in a single attempt may be referred to as one MSG1 or multiple MSG1s, although this is not limited in the present disclosure.

[0173] In some embodiments, the bottleneck of the uplink coverage of the wireless communication system includes the physical uplink shared channel (PUSCH). In order to enhance the uplink coverage of PUSCH, the communication system can support dynamic waveform switching (DWS) of PUSCH. For example, the waveform used by PUSCH can be switched between the cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform and the discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM) waveform. Among them, CP-OFDM is a multi-carrier waveform, and DFT-S-OFDM is a single-carrier waveform. The single-carrier waveform has a lower peak-to-average power ratio and can obtain better power amplifier efficiency. However, the performance of the single-carrier waveform will degrade under frequency selective channel conditions, while the multi-carrier waveform does not have this problem. Single-carrier waveforms are more suitable for use in poor channel conditions when increased transmit power is required, while multi-carrier waveforms are suitable for use in good channel conditions when lower transmit power is required. Therefore, dynamic waveform switching can adapt to different scenarios and improve uplink coverage.

[0174] In some embodiments, the terminal device may report power headroom information to the network device so that the network device performs uplink power control according to the power headroom information. The power headroom information may be P CMAX,f,c The P CMAX,f,c For the specific definition of , please refer to the definition of 3GPP protocol.

[0175] Under different waveforms, the power headroom of the terminal device can be the same or different. In some embodiments, to achieve dynamic waveform switching, the terminal device can report to the network device the power headroom corresponding to using the target waveform (not the currently used waveform) for PUSCH transmission.

[0176] FIG2 is a flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure. The method may be performed by the above-mentioned communication system. As shown in FIG2 , the method may include:

[0177] Step S2101: The network device sends a second message to the terminal device.

[0178] In some embodiments, the terminal device may receive the second message. For example, the terminal device may receive the second message sent by the network device. For another example, the terminal device may also receive the second message sent by another entity.

[0179] In some embodiments, the second message includes third information, which can be used to indicate whether at least one downlink control information (DCI) format of the partial bandwidth BWP used by the terminal device is configured with dynamic waveform switching DWS.

[0180] In some embodiments, the third information may be used to indicate whether the terminal device is configured with DWS.

[0181] In some embodiments, the third information may be used to indicate whether the terminal device uses DWS.

[0182] In some embodiments, the name of the third information is not limited, and may be, for example, "DWS indication information", "DWS configuration information", etc.

[0183] In some embodiments, the above-mentioned second message may include at least one of a radio resource control RRC (Radio Resource Control) message, a medium access control control element MAC CE (Medium Access Control Control Element), a DCI or other messages sent by a network device to a terminal device.

[0184] Step S2102: The terminal device sends a first message to the network device.

[0185] In some embodiments, the network device may receive the first message. For example, the network device may receive the first message sent by the terminal device. For another example, the network device may also receive the first message sent by another entity.

[0186] In some embodiments, the first message may include indication information, and the indication information may be used to indicate whether the first message contains the first information.

[0187] In some embodiments, the first information is power headroom information corresponding to when the terminal device uses a first waveform for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission. The waveform currently used by the terminal device for uplink transmission can be referred to as a second waveform, and the first waveform is different from the second waveform. For example, the second waveform is CP-OFDM and the first waveform is DFT-S-OFDM; for another example, the second waveform is DFT-S-OFDM and the first waveform is CP-OFDM.

[0188] In some embodiments, the first information is power margin information corresponding to when the terminal device uses the first waveform for uplink transmission.

[0189] In some embodiments, the first information is power margin information corresponding to the terminal device predicting the use of the first waveform for uplink transmission.

[0190] In some embodiments, the first information is power margin information corresponding to the assumption that the terminal device uses the first waveform for uplink transmission.

[0191] In some embodiments, the name of the first information is not limited, and may be, for example, "first power headroom information", "power headroom information of a first waveform", "power headroom information of a target waveform", etc.

[0192] In some embodiments, the first information may be power headroom information. CMAX,f,c .

[0193] In other embodiments, the first message may include the above-mentioned first information but does not include indication information.

[0194] In some embodiments, the first message may further include second information, which may be power margin information corresponding to the terminal device using a second waveform for uplink transmission, where the second waveform is the waveform currently used by the terminal device for uplink transmission.

[0195] For example, the first message may include first information and second information, the second information being the power margin information corresponding to the terminal device using the second waveform for uplink transmission, and the first information being the power margin information corresponding to the terminal device using the first waveform for uplink transmission.

[0196] In some embodiments, the above indication information may be determined based on relevant conditions of the terminal device, for example:

[0197] In one implementation, when a first condition is met, the indication information is used to indicate that the first message does not include the first information; wherein the first condition may include at least one of the following:

[0198] The terminal device does not perform physical uplink shared channel (PUSCH) transmission in the serving cell;

[0199] The terminal device does not support the use of the first waveform for uplink transmission in the serving cell.

[0200] For example, if the terminal device does not support the first waveform, the indication information may indicate that the first information is not included in the first message.

[0201] For another example, the terminal device's capabilities support the first waveform, but the first waveform is not supported in the serving cell, then the indication information may indicate that the first information is not included in the first message.

[0202] Optionally, whether the terminal device performs PUSCH transmission in the serving cell can be represented or determined by a field in the first message.

[0203] For example, the first message may include a V field, where a V value of 0 indicates actual transmission (ie, PUSCH transmission is in progress), and a V value of 1 indicates no actual PUSCH transmission (ie, no PUSCH transmission is in progress).

[0204] For another example, the first message may include a PH field, where a PH field of PH type 1 indicates PUSCH transmission, a PH field of PH type 2 indicates physical uplink control channel (PUCCH) and PUSCH transmission, and a PH field of PH Type 3 indicates channel sounding reference signal (SRS) transmission. In this way, when the PH value is PH type 1 or PH type 2, it can be determined that the terminal device is performing PUSCH transmission in the serving cell.

[0205] In some embodiments, the above-mentioned first message may include at least one of an RRC message, a MAC CE, uplink control information UCI (Uplink Control Information) or other messages sent by the terminal device to the network device.

[0206] In some embodiments, the first message may be a Power Headroom Report Medium Access Control Control Element (PHR MAC CE).

[0207] In some embodiments, the PHR MAC CE may be a single entry PHR MAC CE. The indication information may be at least one bit of the Single Entry PHR MAC CE. Optionally, the Single Entry PHR MAC CE may include a power headroom parameter group corresponding to a serving cell.

[0208] FIG3A is a schematic diagram illustrating a first message according to an embodiment of the present disclosure. The first message may be a Single Entry PHR MAC CE. As shown in FIG3A , the first message may include the following fields:

[0209] P field: The value of the P field can be set to 0 or 1. The value of the P field can be set according to the Maximum Permissible Exposure (MPE) requirement, or the P field is used to indicate whether the power margin has performed power fallback. For the meaning of the P field, please refer to the relevant description in the 3GPP protocol and will not be repeated here. The length of the P field can be 1 bit.

[0210] E field: The E field may contain the aforementioned indication information. The E field may be 1 bit long. The E field is an extension bit and may be replaced by other letters. Optionally, the E field may be used to indicate whether the first information (i.e., the PCMAX,f,C (Assumed PUSCH) field) is present in the first message.

[0211] PH field: The PH (Power Headroom) field can be used to indicate the power headroom of the terminal device. Optionally, the PH field can be used to indicate the power headroom level of the terminal device. The length of the PH field can be 6 bits. Optionally, the PH (Type 1, PCell) in Figure 3B can be used to indicate the presence of a PUSCH transmission.

[0212] MPE or R field: This field can be MPE or R (reserved field). If the terminal device is configured with MPE-Reporting-FR2, the current serving cell operates in FR2, and the P field is set to 1, then the MPE field indicates the power backoff applied to meet the MPE requirement. If mpe-Reporting-FR2 is not configured, or the current serving cell operates in FR1, or the P field is set to 0, then the R field (reserved field) is present instead. The MPE or R field can be 2 bits in length.

[0213] P CMAX,f,cField: The P CMAX,f,c The field can be used to indicate the maximum output power configured by the terminal device and can be used to calculate the power margin PH. CMAX,f,c The field may be the second information mentioned above, which is used to indicate the power headroom information corresponding to the terminal device using the second waveform for uplink transmission. CMAX,f,c The length of the field can be 2 bits.

[0214] R field: The R field is a reserved field and can be set to 0. The length of the R field can be 1 bit or 2 bits.

[0215] PCMAX,f,C (Assumed PUSCH) field: The PCMAX,f,C (Assumed PUSCH) field may be the first information described above, which is used to indicate the power headroom information corresponding to the terminal device using the first waveform for uplink transmission. The length of the PCMAX,f,C (Assumed PUSCH) field may be 2 bits.

[0216] It should be noted that the PCMAX,f,C (Assumed PUSCH) field can represent the P corresponding to the assumed PUSCH. CMAX,f,c The assumed PUSCH is a PUSCH assumed to be sent using the first waveform. The extended bit E field (other letters may also be used) may be used to indicate whether the PCMAX, f, C (Assumed PUSCH) field is present in the first message. For other fields besides PCMAX, f, C (Assumed PUSCH) and E, refer to the relevant description of the Single Entry PHR MAC CE in the 3GPP protocol.

[0217] In one implementation, the indication information E is a first value, and the Single Entry PHR MAC CE may include the first information (PCMAX, f, C (Assumed PUSCH) field). Optionally, when the indication information E is the first value, the Single Entry PHR MAC CE may include the first information (PCMAX, f, C (Assumed PUSCH) field).

[0218] In another implementation, when the indication information E is not the first value, the Single Entry PHR MAC CE does not include the first information (PCMAX, f, C (Assumed PUSCH) field). Optionally, when the indication information E is not the first value, the Single Entry PHR MAC CE may not include the first information (PCMAX, f, C (Assumed PUSCH) field).

[0219] Optionally, the first value may be any preset value, for example, 0 or 1 preset according to a protocol.

[0220] In some embodiments, the Single Entry PHR MAC CE may be an Enhanced Single Entry PHR MAC CE including multiple candidate beams, for example, including a Maximum Permissible Exposure (MPE) indicating the multiple candidate beams. Alternatively, the Single Entry PHR MAC CE may be an Enhanced Single Entry PHR for multiple TRP MAC CE including multiple transmission / reception points (TRPs), for example, including power headroom (PH) information for the multiple TRPs.

[0221] FIG3B is a schematic diagram illustrating a first message according to an embodiment of the present disclosure. The first message may be an Enhanced Single Entry PHR MAC CE including multiple candidate beams. As shown in FIG3B , the first message may include the following fields:

[0222] B i Field: The B i Field is used to indicate the resource i The field indicates whether the candidate beam information exists. For example, if the B1 field is set to 1, it indicates that the first octet containing Resource1 exists; if the B2 field is set to 1, it indicates that the second octet containing Resource2 exists, and so on.

[0223] P i Field: The P i Field is used to indicate the resource i The power fallback value (MPE) corresponding to the candidate beam indicated by the field iFor example, if the P1 field is set to 1, it indicates that there is a power backoff value MPE1 for the candidate beam indicated by Resource1; if the B2 field is set to 1, it indicates that there is a power backoff value MPE2 for the candidate beam indicated by Resource2, and so on.

[0224] Resource i Field: The Resource i Can be used to identify candidate beams. i The field may also be referred to as SSBRI i or CRI i field.

[0225] MPE i or R field: The MPE i Field is used to indicate the resource i The power backoff value of the candidate beam indicated by the field.

[0226] Optionally, the value range of the above i can be 1 to 4.

[0227] P field, E field, PH field, MPE or R field, P CMAX,f,c The description of the field, R field, PCMAX,f,C (Assumed PUSCH) field can refer to the description of the embodiment shown in Figure 3A, which will not be repeated here. It should also be noted that the above fields can also refer to the relevant description of Enhanced Single Entry PHR MAC CE in the 3GPP protocol.

[0228] FIG3C is a schematic diagram illustrating a first message according to an embodiment of the present disclosure. The first message may be an Enhanced Single Entry PHR for multiple TRP MAC CE containing multiple TRPs. As shown in FIG3C , the first message may include the following fields:

[0229] V field: The V field can be used to indicate whether the PH value of the corresponding TRP is based on actual transmission or reference format. For example, a V field set to 0 can indicate actual transmission on PUSCH, and a V field set to 1 indicates the use of PUSCH reference format.

[0230] PH1 field: The PH1 field can be used to indicate the power margin of the terminal device based on TRP1.

[0231] PH2 field: The PH2 field can be used to indicate the power margin of the terminal device based on TRP2.

[0232] Similarly, the P field, E field, PH field, MPE or R field, P CMAX,f,c The description of the field, R field, PCMAX,f,C (Assumed PUSCH) field can refer to the description in the embodiment shown in Figure 3A and will not be repeated here. It should also be noted that the above fields can also refer to the relevant description of Enhanced Single Entry PHR for multiple TRP MAC CE in the 3GPP protocol.

[0233] In other embodiments, the PHR MAC CE may be a Multiple Entry PHR MAC CE, which may include multiple power headroom parameter groups, one power headroom parameter group corresponds to one serving cell, and the indication information includes multiple indication parameters, one indication parameter corresponds to one serving cell.

[0234] Optionally, the above-mentioned first information may correspond to a serving cell.

[0235] Optionally, the Multiple Entry PHR MAC CE may be an Enhanced Multiple Entry PHR MAC CE including multiple candidate beams, for example, including an MPE indicating the number of multiple candidate reports. Alternatively, the Multiple Entry PHR MAC CE may also be an Enhanced Multiple Entry PHR for multiple TRP MAC CE including multiple transmit / receive points TRP, for example, including PH information of multiple TRPs.

[0236] In one implementation, if one indication parameter satisfies the second condition, the Multiple Entry PHR MAC CE includes first information corresponding to a serving cell, and the serving cell is the serving cell corresponding to the one indication parameter. Optionally, if one indication parameter satisfies the second condition, the Multiple Entry PHR MAC CE may include first information corresponding to a serving cell, and the serving cell is the serving cell corresponding to the one indication parameter. Optionally, if one indication parameter satisfies the second condition, the Multiple Entry PHR MAC CE includes first information corresponding to a serving cell, and the serving cell is the serving cell corresponding to the one indication parameter.

[0237] In another implementation, if one indication parameter does not satisfy the second condition, the Multiple Entry PHR MAC CE does not include the first information corresponding to the serving cell. Optionally, if one indication parameter does not satisfy the second condition, the Multiple Entry PHR MAC CE does not include the first information corresponding to the serving cell. Similarly, the serving cell is the serving cell corresponding to the one indication parameter. Optionally, if one indication parameter does not satisfy the second condition, the Multiple Entry PHR MAC CE does not include the first information corresponding to the serving cell.

[0238] Optionally, the indication parameter may include a first indication bit and / or a second indication bit, and the second condition may include any one of the following:

[0239] The first indicator bit is a second value;

[0240] The second indicator bit is a third value;

[0241] The first indicator bit is the second value, and the second indicator bit is the third value;

[0242] The first indication bit is the second value, the second indication bit is the third value, and the power headroom type is the first type. The power headroom type is a parameter in the power headroom parameter group corresponding to the serving cell. The first type can be any pre-set type. For example, the first type can be Type 1.

[0243] The second and third values ​​may be the same or different. The second and third values ​​may be any pre-set values, for example, values ​​pre-set according to a protocol. For example, the second and third values ​​may both be 0; for another example, the second and third values ​​may both be 1; for another example, the second value may be 0 and the third value may be 1; for another example, the second value may be 1 and the third value may be 0.

[0244] In one implementation, the power headroom parameter group may include a first indication bit.

[0245] In another implementation, the power headroom parameter group may not include the second indication bit, and the multiple second indication bits are included in at least one byte of the Multiple Entry PHR MAC CE.

[0246] FIG4A is a schematic diagram illustrating a first message according to an embodiment of the present disclosure. The first message may be a Multiple Entry PHR MAC CE. As shown in FIG4A , the first message may include power headroom parameter groups corresponding to multiple serving cells. The first message may include the following fields:

[0247] V field: The V field may be the first indication bit mentioned above, and the V field may be a bit in the power headroom parameter group corresponding to the serving cell. When the V field corresponding to a serving cell is a second value (e.g., V=0), the first message may carry the first information corresponding to the serving cell (e.g., PCMAX,f,C(Assumed PUSCH)2, PCMAX,f,C(Assumed PUSCH)3, ..., PCMAX,f,C(Assumed PUSCH)m in FIG4A ); when the V field corresponding to a serving cell is not a second value (e.g., V=1), the first message may not carry the first information corresponding to the serving cell.

[0248] R field: The R field is a reserved field and can be set to 0. The length of the R field can be 1 bit or 2 bits.

[0249] PCMAX,f,C(Assumed PUSCH)i(i=2, 3,…,m) field: m can be determined based on the number of service cells carried by the first message. The PCMAX,f,C(Assumed PUSCH)i field is the first information. The first information exists when the V field corresponding to the service cell is the second value (for example, V=0), and is used to indicate the power margin information corresponding to the first waveform used for uplink transmission in the service cell by the terminal device.

[0250] The power headroom parameter group corresponding to a serving cell may include a P field, a V field, a PH field, an MPE or R field, a P CMAX,f,C At least one of the following fields: P field, V field, PH (Type X, Serving Cell n), MPE or R field, P field, R field, and PCMAX, f, C (Assumed PUSCH) field. For example, the power headroom parameter group corresponding to the serving cell Serving Cell n includes the following fields: P field, V field, PH (Type X, Serving Cell n) field, MPE or R field, P field, CMAX,f,C m field, R field and PCMAX,f,C(Assumed PUSCH)m field. n and m are both positive integers, and m can be equal to n+2.

[0251] It should be noted that, for the description of other fields in the first message, reference can be made to the description in the embodiment shown in FIG3A and the relevant description in the 3GPP protocol, which will not be repeated here.

[0252] FIG4B is a schematic diagram illustrating a first message according to an embodiment of the present disclosure. The first message may be a Multiple Entry PHR MAC CE. As shown in FIG4B , FIG4B differs from FIG4A in that an E field is added, and one E field may correspond to one serving cell.

[0253] The E field may be the second indication bit. The E field is not a bit in the power headroom parameter group corresponding to the serving cell. Multiple E fields may be included in at least one byte of the Multiple Entry PHR MAC CE. The position of the at least one byte is not limited and may be anywhere in the Multiple Entry PHR MAC CE.

[0254] If the E field corresponding to a serving cell is the second value (e.g., E=0), the first message may carry the first information corresponding to the serving cell (e.g., PCMAX,f,C(Assumed PUSCH)2, PCMAX,f,C(Assumed PUSCH)3, ..., PCMAX,f,C(Assumed PUSCH)m in the figure); if the E field corresponding to a serving cell is not the second value (e.g., E=1), the first message may not carry the first information corresponding to the serving cell. Optionally, if the E field corresponding to a serving cell is the second value (e.g., E=0), the first message may carry the first information corresponding to the serving cell (e.g., PCMAX,f,C(Assumed PUSCH)2, PCMAX,f,C(Assumed PUSCH)3, ..., PCMAX,f,C(Assumed PUSCH)m in the figure); if the E field corresponding to a serving cell is not the second value (e.g., E=1), the first message may not carry the first information corresponding to the serving cell.

[0255] For example, E1 to E8 in FIG4B correspond one-to-one to the PCell and the other seven serving cells. For example, E1 to E7 correspond to serving cells with serving cell indices 1 to 7, respectively, and E8 corresponds to the PCell. For another example, E1 corresponds to the PCell, and E2 to E8 correspond to serving cells with serving cell indices 1 to 7, respectively.

[0256] It should be noted that E1 to E8 in the figure above can also be represented as E0 to E7, where E0 represents PCell and E1 to E7 correspond to serving cells with serving cell index = 1 to 7. E1 to E8 or E0 to E7 are used to indicate whether the corresponding serving cell has a byte carrying the first information.

[0257] In addition, the positions of the bytes E1 to E8 can be flexibly adjusted up or down, and can be above or below any other byte, and the embodiment of the present disclosure does not limit this.

[0258] In some embodiments, as shown in FIG. 4B , the first indication bit (V field) may be an optional field, and the V field may be replaced by a reserved field R.

[0259] In other embodiments, as shown in Figure 4B, for a serving cell, if the first indication bit (V field) corresponding to the serving cell is a second value (for example, V=0), and the second indication bit (E field) corresponding to the serving cell is a third value (for example, E=1), then the Multiple Entry PHR MAC CE carries the first information corresponding to the serving cell (PCMAX,f,C(Assumed PUSCH)).

[0260] In some other embodiments, as shown in Figure 4B, for a serving cell, if the first indication bit (V field) corresponding to the serving cell is a second value (for example, V=0), the second indication bit (E field) corresponding to the serving cell is a third value (for example, E=1), and the reported power headroom type is the first type (for example, Type 1PH), then the Multiple Entry PHR MAC CE carries the first information corresponding to the serving cell (PCMAX,f,C(Assumed PUSCH)).

[0261] FIG4C is a schematic diagram illustrating a first message according to an embodiment of the present disclosure. The first message may be an Enhanced Multiple Entry PHR MAC CE including multiple candidate beams. As shown in FIG4C , the first message may include the following fields:

[0262] V field: The V field can be the above-mentioned first indication bit, and the V field can be a bit in the power headroom parameter group corresponding to the serving cell. The V field corresponding to a serving cell is the second value (for example, V=0), and the first message can carry the first information corresponding to the serving cell (for example, PCMAX,f,C(Assumed PUSCH)2, PCMAX,f,C(Assumed PUSCH)3, ..., PCMAX,f,C(Assumed PUSCH)m in Figure 4C); the V field corresponding to a serving cell is not the second value (for example, V=1), and the first message may not carry the first information corresponding to the serving cell. Optionally, in the case that the V field corresponding to a serving cell is the second value (for example, V=0), the first message can carry the first information corresponding to the serving cell (for example, PCMAX,f,C(Assumed PUSCH)2, PCMAX,f,C(Assumed PUSCH)3, ..., PCMAX,f,C(Assumed PUSCH)m in Figure 4C). CMAX,f,C(Assumed PUSCH) m); when the V field corresponding to a serving cell is not the second value (for example, V=1), the first message may not carry the first information corresponding to the serving cell.

[0263] R field: The R field is a reserved field and can be set to 0. The length of the R field can be 1 bit or 2 bits.

[0264] PCMAX,f,C(Assumed PUSCH)i(i=2, 3,…,m) field: m can be determined based on the number of service cells carried by the first message. The PCMAX,f,C(Assumed PUSCH)i field is the first information. The first information exists when the V field corresponding to the service cell is the second value (for example, V=0), and is used to indicate the power margin information corresponding to the first waveform used for uplink transmission in the service cell by the terminal device.

[0265] It should also be noted that, for descriptions of other fields in the first message, reference can be made to the description in the embodiment shown in FIG3A and the relevant description in the 3GPP protocol, which will not be repeated here.

[0266] Figure 4D is a schematic diagram of a first message according to an embodiment of the present disclosure. The first message may be an Enhanced Multiple Entry PHR MAC CE containing multiple candidate beams. The difference between Figure 4D and Figure 4C is that an E field is added, and one E field may correspond to one serving cell.

[0267] The E field may be the second indication bit. The E field is not a bit in the power headroom parameter group corresponding to the serving cell. Multiple E fields may be included in at least one byte of the Enhanced Multiple Entry PHR MAC CE. The position of the at least one byte is not limited and may be anywhere in the Enhanced Multiple Entry PHR MAC CE.

[0268] For example, E1 to E8 in FIG4D correspond one-to-one to the PCell and the other seven serving cells. For example, E1 to E7 correspond to serving cells with serving cell indices 1 to 7, respectively, and E8 corresponds to the PCell. For another example, E1 corresponds to the PCell, and E2 to E8 correspond to serving cells with serving cell indices 1 to 7, respectively.

[0269] It should be noted that E1 to E8 in the figure above can also be represented as E0 to E7, where E0 represents PCell and E1 to E7 correspond to serving cells with serving cell index = 1 to 7. E1 to E8 or E0 to E7 are used to indicate whether the corresponding serving cell has a byte carrying the first information.

[0270] In addition, the positions of the bytes E1 to E8 can be flexibly adjusted up or down, and can be above or below any other byte, and the embodiment of the present disclosure does not limit this.

[0271] In some embodiments, as shown in FIG. 4D , the first indication bit (V field) may be an optional field, and the V field may be replaced by a reserved field R.

[0272] In some other embodiments, as shown in FIG4D , for a serving cell, if the first indication bit (V field) corresponding to the serving cell is a second value (e.g., V=0), and the second indication bit (E field) corresponding to the serving cell is a third value (e.g., E=1), then the Enhanced Multiple Entry PHR MAC CE carries the first information (P field) corresponding to the serving cell. CMAX,f,C(Assumed PUSCH) ).

[0273] In some other embodiments, as shown in Figure 4D, for a serving cell, if the first indication bit (V field) corresponding to the serving cell is a second value (for example, V=0), the second indication bit (E field) corresponding to the serving cell is a third value (for example, E=1), and the reported power headroom type is the first type (for example, Type 1PH), then the Enhanced Multiple Entry PHR MAC CE carries the first information corresponding to the serving cell (PCMAX,f,C(Assumed PUSCH)).

[0274] FIG4E is a schematic diagram illustrating a first message according to an embodiment of the present disclosure. The first message may be an Enhanced Multiple Entry PHR for multiple TRP MAC CE containing multiple transmit / receive points (TRPs). As shown in FIG4E , the first message may include the following fields:

[0275] V field: The V field can be the above-mentioned first indication bit. If the V field corresponding to PH1 is the second value (for example, V=0), or the V field corresponding to PH2 is the second value, or the V fields corresponding to PH1 and PH2 are both second values, then the first message can carry the first information corresponding to the service cell (for example, PCMAX,f,C (Assumed PUSCH)); conversely, if the V fields corresponding to PH1 and PH2 are not the second value (for example, both are 1), then the first message may not carry the first information corresponding to the service cell.

[0276] R field: The R field is a reserved field and can be set to 0. The length of the R field can be 1 bit or 2 bits.

[0277] PCMAX,f,C (Assumed PUSCH) field: The PCMAX,f,C (Assumed PUSCH) field is the first information. The first information exists when the V field corresponding to the serving cell is the second value (for example, V=0), and is used to indicate the power margin information corresponding to the terminal device if the first waveform is used for uplink transmission in the serving cell.

[0278] It should also be noted that, for descriptions of other fields in the first message, reference can be made to the description in the embodiment shown in FIG3A and the relevant description in the 3GPP protocol, which will not be repeated here.

[0279] Figure 4F is a schematic diagram of a first message according to an embodiment of the present disclosure. The first message may be an Enhanced Multiple Entry PHR for multiple TRP MAC CE including multiple transmit / receive points (TRPs). Figure 4D differs from Figure 4C in that an R field is replaced with an E field. The E field may be the second indication bit described above, and one E field may correspond to one serving cell.

[0280] In some embodiments, the E field is a third value (e.g., E=1), and the first message may carry the first information corresponding to the serving cell (e.g., PCMAX,f,C(Assumed PUSCH)); conversely, the E field is not the third value (e.g., E=0), and the first message may not carry the first information corresponding to the serving cell. Optionally, if the E field is a third value (e.g., E=1), the first message may carry the first information corresponding to the serving cell (e.g., PCMAX,f,C(Assumed PUSCH)); conversely, if the E field is not the third value (e.g., E=0), the first message may not carry the first information corresponding to the serving cell.

[0281] In other embodiments, the E field is a third value (e.g., E=1), the V field corresponding to PH1 is a second value (e.g., V=0), or the V field corresponding to PH2 is a second value, or the V fields corresponding to PH1 and PH2 are both second values, and the first message may carry the first information corresponding to the serving cell (e.g., PCMAX, f, C (Assumed PUSCH)); conversely, in other cases, the first message may not carry the first information corresponding to the serving cell. Optionally, in the case where the E field is a third value (e.g., E=1), if the V field corresponding to PH1 is a second value (e.g., V=0), or the V field corresponding to PH2 is a second value, or the V fields corresponding to PH1 and PH2 are both second values, then the first message may carry the first information corresponding to the serving cell (e.g., PCMAX, f, C (Assumed PUSCH)); conversely, in other cases, the first message may not carry the first information corresponding to the serving cell.

[0282] In some embodiments of the present disclosure, whether the first message includes the first information corresponding to the serving cell may be determined based on whether the serving cell is configured with dynamic waveform switching DWS.

[0283] In some embodiments, when at least one downlink control information DCI format of the first BWP (Bandwidth Part) is configured with dynamic waveform switching DWS, the Multiple Entry PHR MAC CE may include first information corresponding to the first serving cell;

[0284] The first BWP is at least one of the following:

[0285] The activated BWP of the first serving cell is configured with PDCCH resources, and the first BWP is the activated BWP of the first serving cell;

[0286] The activated BWP of the first serving cell is not configured with PDCCH resources, the first BWP is the activated BWP of the second serving cell, and the second serving cell is used to schedule the first serving cell;

[0287] In a case where the activated BWP of the first serving cell is configured with PDCCH resources, the first BWP is the activated BWP of the first serving cell;

[0288] In the case that the activated BWP of the first serving cell is not configured with PDCCH resources, the first BWP is the activated BWP of the second serving cell, and the second serving cell is used to schedule the first serving cell.

[0289] Optionally, at least one downlink control information DCI format of the first BWP (Bandwidth Part) is configured with dynamic waveform switching DWS, and the Multiple Entry PHR MAC CE may include first information corresponding to the first serving cell.

[0290] It should be noted that the first serving cell may be any serving cell of the terminal device, and the second serving cell may also be any serving cell of the terminal device. Optionally, the second serving cell may be the primary cell (PCell) or the primary secondary cell (PSCell) of the terminal device.

[0291] In one implementation, for the reporting of Multiple Entry PHR MAC CE, if PDCCH resources are configured on the activated BWP (e.g., the first BWP) of a serving cell (e.g., the third service message), and at least one DCI format on the activated BWP is configured with a DWS field, then the Multiple Entry PHR MAC CE may carry the first information corresponding to the serving cell (e.g., the third service message), and the first information may be the above-mentioned PCMAX,f,C (Assumed PUSCH); otherwise, if the DWS field is not configured, the first information is not carried.

[0292] In another implementation, for the reporting of Multiple Entry PHR MAC CE, if PDCCH resources are not configured on the activated BWP of a service cell (for example, the third service message), if at least one DCI format on the activated BWP (for example, the first BWP) of another service cell responsible for scheduling the service cell (for example, the second service cell, the second service cell can be the primary cell PCell or the primary and secondary cell PSCell) is configured with a DWS field, then the Multiple Entry PHR MAC CE can carry the first information corresponding to the service cell (for example, the third service message), and the first information can be the above-mentioned PCMAX,f,C (Assumed PUSCH); otherwise, if the DWS field is not configured, the first information is not carried.

[0293] In some embodiments, the terminal device may be configured with DWS and send the first message. Alternatively, the terminal device may be configured with DWS and send the first message.

[0294] In one implementation, the terminal device may configure dynamic waveform switching DWS in at least one DCI format of the second BWP and send a first message, where the second BWP is the activated BWP of the primary serving cell of the terminal device. Optionally, the terminal device may send the first message when at least one DCI format of the second BWP is configured with dynamic waveform switching DWS, where the second BWP is the activated BWP of the primary serving cell of the terminal device.

[0295] For example, for reporting of the PHR MAC CE, the terminal device may use any optional PHR MAC CE structure in the embodiments of the present disclosure to send the PHR MAC CE only when at least one DCI format on the activated BWP of the primary cell PCell is configured with a DWS field.

[0296] In this way, the terminal device can send the first message according to the configuration, thereby improving the flexibility of sending power headroom information.

[0297] Step S2103: The network device determines the power headroom information of the terminal device based on the first message.

[0298] For example, the network device may determine whether the first message includes the first information based on the indication information in the first message, and determine the power headroom information of the terminal device based on the first information.

[0299] The method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2103. For example, step S2102 may be implemented as an independent embodiment, step S2101 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, steps S2102 + S2103 may be implemented as independent embodiments, and steps S2101 + S2103 may be implemented as independent embodiments.

[0300] In some embodiments, the above steps S2101 to S2103 can be executed in a swapped order or simultaneously. For example, steps S2101 and S2102 can be executed in a swapped order or simultaneously.

[0301] In some embodiments, steps S2101 to S2103 are all optional. For example, steps S2101 and S2103 are optional, and one or more of these steps may be omitted or replaced in different embodiments. For another example, steps S2101 and S2102 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0302] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0303] Using the above method, a first message is sent, the first message including indication information for indicating whether the first message includes first information, the first information being power headroom information corresponding to when a terminal device uses a first waveform for uplink transmission, where the first waveform is different from the waveform currently used for uplink transmission by the terminal device. In this way, the power headroom information corresponding to the use of the first waveform for uplink transmission can be reported via the first message, thereby improving the flexibility and reliability of power control.

[0304] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0305] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0306] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0307] In some embodiments, terms such as "Physical Downlink Shared Channel (PDSCH)", "DL data", "DL signal", "DL message", "downlink data", "downlink signal", "downlink message" can be replaced with each other, and terms such as "Physical Uplink Shared Channel (PUSCH)", "UL data", "UL signal", "UL message", "uplink data", "uplink signal", "uplink message" can be replaced with each other.

[0308] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0309] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0310] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0311] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0312] FIG5A is a flow chart illustrating a method for transmitting power headroom information according to an embodiment of the present disclosure. As shown in FIG5A , an embodiment of the present disclosure relates to a method for transmitting power headroom information, which can be performed by a terminal device. The method may include:

[0313] Step S5101: Get the second message.

[0314] The optional implementation of step S5101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0315] In some embodiments, the terminal device may receive the second message sent by the network device, but is not limited thereto. The terminal device may also receive the second message sent by other entities.

[0316] In some embodiments, the terminal device may obtain a second message specified by the protocol.

[0317] In some embodiments, the terminal device may obtain the second message from upper layer(s).

[0318] In some embodiments, the terminal device may perform processing to obtain the second message.

[0319] In some embodiments, step S5101 may be omitted, and the terminal device may autonomously implement the function indicated by the second message, or the above function may be default or by default.

[0320] Step S5102: Send the first message.

[0321] The optional implementation of step S5102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0322] In some embodiments, the terminal device may send the first message to the network device, but is not limited thereto. The terminal device may also send the first message to other entities.

[0323] Optionally, the first message is used by the network device to determine the power headroom information of the terminal device according to the first message. Its optional implementation method can be referred to the optional implementation method of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0324] The method involved in the embodiment of the present disclosure may include at least one of the above steps S5101 to S5102. For example, step S5101 may be implemented as an independent embodiment, and step S5102 may be implemented as an independent embodiment.

[0325] In some embodiments, the above steps S5101 to S5102 can be executed in an interchangeable order or simultaneously.

[0326] FIG5B is a flow chart illustrating a method for transmitting power headroom information according to an embodiment of the present disclosure. As shown in FIG5B , an embodiment of the present disclosure relates to a method for transmitting power headroom information, which can be performed by a terminal device. The method may include:

[0327] Step S5201: Get the second message.

[0328] The optional implementation of step S5201 can be found in step S2101 of FIG. 2 , the optional implementation of step S5101 of FIG. 5A , and other related parts in the embodiments involved in FIG. 2 and FIG. 5A , which will not be described in detail here.

[0329] FIG5C is a flow chart illustrating a method for transmitting power headroom information according to an embodiment of the present disclosure. As shown in FIG5C , an embodiment of the present disclosure relates to a method for transmitting power headroom information, which can be performed by a terminal device. The method may include:

[0330] Step S5301: Send the first message.

[0331] The optional implementation of step S5301 can be found in step S2102 of FIG. 2 , the optional implementation of step S5102 of FIG. 5A , and other related parts in the embodiments involved in FIG. 2 and FIG. 5A , which will not be described in detail here.

[0332] In some embodiments, the terminal device may send the second information to the network device, but is not limited thereto and may also send the second information to other entities.

[0333] In some embodiments, the first message includes indication information, and the indication information is used to indicate whether the first message contains first information, and the first information is the power margin information corresponding to the terminal device using a first waveform for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

[0334] In some embodiments, when a first condition is met, the indication information is used to indicate that the first message does not include the first information;

[0335] The first condition includes at least one of the following:

[0336] The terminal device does not perform physical uplink shared channel PUSCH transmission in the serving cell;

[0337] The terminal device does not support the use of the first waveform for uplink transmission in the serving cell.

[0338] In some embodiments, the first message is a Power Headroom Report Medium Access Control Element PHR MAC CE.

[0339] In some embodiments, the PHR MAC CE is a single-entry Single Entry PHR MAC CE, and the indication information is at least one bit of the Single Entry PHR MAC CE.

[0340] In some embodiments,

[0341] In a case where the indication information is a preset first value, the Single Entry PHR MAC CE includes the first information; or,

[0342] When the indication information is not the first value, the Single Entry PHR MAC CE does not include the first information.

[0343] In some embodiments, the Single Entry PHR MAC CE is an Enhanced Single Entry PHR MAC CE containing multiple candidate beams or an Enhanced Single Entry PHR for multiple TRP MAC CE containing multiple transmission / reception points TRP.

[0344] In some embodiments, the PHR MAC CE is a Multiple Entry PHR MAC CE, the Multiple Entry PHR MAC CE includes multiple power headroom parameter groups, one power headroom parameter group corresponds to one serving cell, and the indication information includes multiple indication parameters, one indication parameter corresponds to one serving cell.

[0345] In some embodiments, one piece of first information corresponds to one serving cell, wherein:

[0346] When one indication parameter satisfies the second condition, the Multiple Entry PHR MAC CE includes first information corresponding to a serving cell, and the serving cell is the serving cell corresponding to the one indication parameter; or

[0347] When an indication parameter does not satisfy the second condition, the Multiple Entry PHR MAC CE does not include the first information corresponding to the serving cell.

[0348] In some embodiments, the indication parameter includes a first indication bit and / or a second indication bit, and the second condition includes any one of the following:

[0349] The first indication bit is a second value;

[0350] The second indication bit is a third value;

[0351] The first indication bit is the second value, and the second indication bit is the third value;

[0352] The first indication bit is the second value, the second indication bit is the third value, and the power headroom type is the first type, where the power headroom type is a parameter in a power headroom parameter group corresponding to the serving cell.

[0353] In some embodiments,

[0354] The power headroom parameter group includes the first indication bit; or,

[0355] The power headroom parameter group does not include the second indication bit, and multiple second indication bits are included in at least one byte of the Multiple Entry PHR MAC CE.

[0356] In some embodiments, the Multiple Entry PHR MAC CE is an Enhanced Multiple Entry PHR MAC CE including multiple candidate beams or an Enhanced Multiple Entry PHR for multiple TRP MAC CE including multiple transmission / reception points TRP.

[0357] In some embodiments, the method further comprises:

[0358] In a case where at least one downlink control information DCI format of the first bandwidth BWP is configured with dynamic waveform switching DWS, the Multiple Entry PHR MAC CE includes first information corresponding to the first serving cell;

[0359] The first BWP is at least one of the following:

[0360] In a case where the activated BWP of the first serving cell is configured with PDCCH resources, the first BWP is the activated BWP of the first serving cell;

[0361] In a case where the activated BWP of the first serving cell is not configured with PDCCH resources, the first BWP is the activated BWP of the second serving cell, and the second serving cell is used to schedule the first serving cell.

[0362] In some embodiments, sending the first message includes:

[0363] The first message is sent when at least one downlink control information DCI format of the second bandwidth BWP is configured with dynamic waveform switching DWS, and the second BWP is the activated BWP of the primary serving cell of the terminal device.

[0364] In some embodiments, the first message also includes second information, where the second information is power margin information corresponding to when the terminal device uses a second waveform for uplink transmission, and the second waveform is the waveform currently used by the terminal device.

[0365] In some embodiments, the method further comprises:

[0366] A second message is received, where the second message includes third information, where the third information is used to indicate whether at least one downlink control information DCI format of the partial bandwidth BWP used by the terminal device is configured with dynamic waveform switching DWS.

[0367] FIG6A is a flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure. As shown in FIG6A , an embodiment of the present disclosure relates to a method for transmitting power headroom information, which can be executed by a network device. The method includes:

[0368] Step S6101: Send the second message.

[0369] The optional implementation of step S6101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0370] In some embodiments, the network device may send the second message to the terminal device, but is not limited thereto. The network device may also send the second message to other entities.

[0371] Step S6102: Get the first message.

[0372] The optional implementation of step S6102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0373] In some embodiments, the network device may receive the first message sent by the terminal device, but is not limited thereto. The network device may also receive the first message sent by other entities.

[0374] In some embodiments, the network device may obtain a first message specified by the protocol.

[0375] In some embodiments, the network device may obtain the first message from upper layer(s).

[0376] In some embodiments, the network device may perform processing to obtain the first message.

[0377] In some embodiments, step S6102 may be omitted, and the network device may autonomously implement the function indicated by the first message, or the above function may be default or acquiescent.

[0378] Step S6103: Determine the power headroom information of the terminal device according to the first message.

[0379] The optional implementation of step S6103 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0380] The method involved in the embodiments of the present disclosure may include at least one of the above steps S6101 to S6103. For example, step S6102 can be implemented as an independent embodiment, step S6101 can be implemented as an independent embodiment, step S6103 can be implemented as an independent embodiment, steps S6102 + S6103 can be implemented as an independent embodiment, and steps S6101 + S6102 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0381] In some embodiments, the above steps S6101 to S6103 can be executed in a swapped order or simultaneously. For example, steps S6101 and S6102 can be executed in a swapped order or simultaneously.

[0382] In some embodiments, steps S6101 to S6103 are all optional. For example, steps S6101 and S6103 are optional, and one or more of these steps may be omitted or replaced in different embodiments. For another example, steps S6102 and S6103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0383] FIG6B is a flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure. As shown in FIG6B , an embodiment of the present disclosure relates to a method for transmitting power headroom information, which can be performed by a network device. The method may include:

[0384] Step S6201: Send the second message.

[0385] The optional implementation of step S6201 can be found in step S2101 of FIG. 2 , the optional implementation of step S6101 of FIG. 6A , and other related parts in the embodiments involved in FIG. 2 and FIG. 6A , which will not be described in detail here.

[0386] Step S6202: Get the first message.

[0387] The optional implementation of step S6202 can be found in step S2102 of FIG. 2 , the optional implementation of step S6102 of FIG. 6A , and other related parts in the embodiments involved in FIG. 2 and FIG. 6A , which will not be described in detail here.

[0388] In some embodiments, the above steps are all optional steps.

[0389] FIG6C is a flow chart illustrating a method for transmitting power headroom information according to an embodiment of the present disclosure. As shown in FIG6C , an embodiment of the present disclosure relates to a method for transmitting power headroom information, which can be performed by a network device. The method may include:

[0390] Step S6301: Get the first message.

[0391] The optional implementation of step S6301 can be found in step S2102 of FIG. 2 , the optional implementation of step S6102 of FIG. 6A , and other related parts in the embodiments involved in FIG. 2 and FIG. 6A , which will not be described in detail here.

[0392] Step S6302: Determine the power headroom information of the terminal device according to the first message.

[0393] The optional implementation of step S6302 can be found in step S2103 of FIG. 2 , the optional implementation of step S6103 of FIG. 6A , and other related parts in the embodiments involved in FIG. 2 and FIG. 6A , which will not be described in detail here.

[0394] In some embodiments, the above steps are all optional steps.

[0395] FIG6D is a flow chart illustrating a method for transmitting power headroom information according to an embodiment of the present disclosure. As shown in FIG6D , an embodiment of the present disclosure relates to a method for transmitting power headroom information, which can be performed by a network device. The method may include:

[0396] Step S6401: Get the first message.

[0397] In some embodiments, a network device may receive a first message, wherein the first message includes indication information, and the indication information is used to indicate whether the first message contains first information, wherein the first information is the power margin information corresponding to when the terminal device uses a first waveform for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

[0398] The optional implementation of step S6401 can be found in step S2102 of FIG. 2 , the optional implementation of step S6102 of FIG. 6A , and other related parts in the embodiments involved in FIG. 2 and FIG. 6A , which will not be described in detail here.

[0399] FIG7 is a flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure. As shown in FIG7 , an embodiment of the present disclosure relates to a method for transmitting power headroom information, which may include:

[0400] Step S7101: The terminal device sends a first message to the network device.

[0401] The optional implementation of step S7101 can be found in the optional implementation of step S2102 in Figure 2, step S5102 in Figure 5A, step S6102 in Figure 6A, and other related parts in the embodiments involved in Figure 2, Figure 5A or Figure 6A, which will not be repeated here.

[0402] In some embodiments, the above method may include the method described in the embodiments of the above communication system, terminal equipment, network equipment, etc., which will not be repeated here.

[0403] FIG8 is a flow chart of a method for transmitting power headroom information according to an embodiment of the present disclosure. As shown in FIG8 , an embodiment of the present disclosure relates to a method for transmitting power headroom information, which can be performed by a communication system and may include:

[0404] Step S8101: The terminal device sends a first message.

[0405] In some embodiments, the first message may be a PHR MAC CE. For example, the terminal device reports the PHR MAC CE and provides indication information in the MAC CE to indicate whether power headroom information is present in the MAC CE, where the power headroom information is power headroom information corresponding to assuming that a first waveform is used to transmit the PUSCH (different from a waveform currently used to transmit the PUSCH).

[0406] In one implementation, the power headroom information is P CMAX,f,c , the P CMAX,f,c For the definition of , refer to the description of 3GPP protocol.

[0407] Optionally, the PHR MAC CE can be either a single entry PHR MAC CE or a multiple entry PHR MAC CE. A single entry means including only a single serving cell, and a multiple entry means including multiple serving cells. The single entry or multiple entry PHR MAC CE can include MPE information indicating multiple beams, or PH information indicating multiple TRPs.

[0408] Embodiment 1: If the terminal device has no actual PUSCH transmission on a serving cell, the PHR MAC CE indicates that the octet for carrying the power headroom information for the serving cell is not carried.

[0409] Note: A V field of 0 indicates actual transmission, while a V field of 1 indicates no actual transmission. PH type 1 indicates PUSCH transmission, PH type 2 indicates PUCCH+PUSCH transmission, and PH type 3 indicates SRS transmission.

[0410] Example 2: If the terminal device does not support the method for calculating P in a serving cell CMAX,f,c If the assumed PUSCH is transmitted using the parameters of the serving cell, the PHR MAC CE indicates that the octet (byte) for carrying the power headroom information for the serving cell is not carried. The assumed PUSCH is a PUSCH transmitted by the key device assuming the first waveform is used.

[0411] Embodiment 3: The design of Single Entry PHR MAC CE is shown in Figures 3A-3C.

[0412] Among them, PCMAX,f,C(Assumed PUSCH) represents the P corresponding to assumed PUSCH CMAX,f,C The extended bit E (other letters may also be used) is introduced to indicate whether the following PCMAX,f,C (Assumed PUSCH) field is present.

[0413] An example of MPE reporting without multiple TRPs or multiple candidate beams is shown in FIG3A .

[0414] An example of multi-candidate beam MPE reporting is shown in Figure 3B.

[0415] An example of multiple TRP reporting is shown in Figure 3C.

[0416] Example 4: The design of Multiple Entry PHR MAC CE is shown in Figures 4A-4F:

[0417] Among them, PCMAX,f,C(Assumed PUSCH) represents the P corresponding to assumed PUSCH CMAX,f,C The extended bit E (other letters may also be used) is introduced to indicate whether the following PCMAX,f,C (Assumed PUSCH) field is present.

[0418] As shown in the embodiment of FIG4A: when the V field of a serving cell indicates 0, it carries the P corresponding to the assumed PUSCH. CMAX,f,CWhen it is 1, it does not carry the P corresponding to the assumed PUSCH. CMAX,f,C octet.

[0419] In the embodiment shown in Figure 4B: E1 to E8 in the figure correspond one-to-one to PCell and the other 7 serving cells, for example, E1 to E7 correspond to serving cells with serving cell index = 1 to 7, and E8 corresponds to PCell. In the above figure, E1 to E8 can also be expressed as E0 to E7, where E0 represents PCell and E1 to E7 correspond to serving cells with serving cell index = 1 to 7. E1 to E8 or E0 to E7 are used to indicate whether the corresponding serving cell has an octet that carries the assumed PUSCH power margin. Note: The position of the octets of E1 to E8 can be flexibly adjusted up or down, and can be above or below any octect. There is no restriction at this time.

[0420] As shown in the embodiment of FIG4B: for a serving cell, if its corresponding V bit indicates 0 and reports Type 1 PH, and its corresponding E bit indicates a specific value (such as 1), then the P corresponding to the assumed PUSCH of the serving cell is carried. CMAX,f,C otherwise, not carried.

[0421] Examples of multi-candidate beam MPE reporting are shown in Figures 4C and 4D.

[0422] As shown in the embodiment of FIG4C: When the V field of a serving cell indicates 0, it carries the P corresponding to the assumed PUSCH. CMAX,f,C When it is 1, it does not carry the P corresponding to the assumed PUSCH. CMAX,f,C octet.

[0423] In the embodiment shown in Figure 4D: E1 to E8 in the figure correspond one-to-one to PCell and the other 7 serving cells, for example, E1 to E7 correspond to serving cells with serving cell index = 1 to 7, and E8 corresponds to PCell. In the above figure, E1 to E8 can also be expressed as E0 to E7, where E0 represents PCell and E1 to E7 correspond to serving cells with serving cell index = 1 to 7. E1 to E8 or E0 to E7 are used to indicate whether the corresponding serving cell has an octet that carries the assumed PUSCH power margin. Note: The position of the octets of E1 to E8 can be flexibly adjusted up or down, and can be above or below any octect. There is no restriction at this time.

[0424] As shown in the embodiment of FIG4D : for a serving cell, if its corresponding V bit indicates 0 and reports Type 1 PH, and its corresponding E bit indicates a specific value (such as 1), then the P corresponding to the assumed PUSCH of the serving cell is carried. CMAX,f,C otherwise, not carried.

[0425] Examples of multiple TRP reports are shown in Figures 4E and 4F.

[0426] As shown in the embodiment of FIG4E: If the V field of PH1 or PH2 is 0, or the V fields of PH1 and PH2 are both 0, then the octet containing the PCMAX,f,C corresponding to the assumed PUSCH is carried. If the V fields of PH1 and PH2 are both 1, then the octet containing the PCMAX,f,C corresponding to the assumed PUSCH is not carried. CMAX,f,C octet.

[0427] In the embodiment shown in FIG4F , if the V field of PH1 or PH2 is 0 and the E field is a specific value (such as 1), the octet containing the PCMAX,f,C corresponding to the assumed PUSCH is carried. In other cases, the octet containing the PCMAX,f,C corresponding to the assumed PUSCH is not carried. CMAX,f,C octet.

[0428] Embodiment 5: For Single Entry / Multiple Entry PHR MAC CE reporting, the terminal device uses the MAC CE designed in the above embodiment 3 or embodiment 4 only when at least one DCI format on the active BWP of the PCell is configured with a DWS (Dynamic Waveform Switching) field.

[0429] Embodiment 6: For Multiple Entry PHR MAC CE reporting, if a PDCCH resource is configured on the active BWP of a serving cell and at least one DCI format on the BWP is configured with a DWS field, the PHR MAC CE shall carry the octet of PCMAX,f,C corresponding to the assumed PUSCH of the serving cell; if the DWS field is not configured, it shall not be carried.

[0430] Example 7: For Multiple Entry PHR MAC CE reporting, if the active BWP of a serving cell is not configured with PDCCH resources, and if at least one DCI format on the active BWP of another serving cell (such as PCell or PSCell) responsible for scheduling the serving cell is configured with a DWS field, then the PHR MAC CE shall carry the octet of PCMAX,f,C corresponding to the assumed PUSCH of the serving cell; if the DWS field is not configured, it shall not be carried.

[0431] In some embodiments of the present disclosure, a communication system is provided, which may include a terminal device and a network device, wherein the terminal device can execute the power headroom information transmission method executed by the terminal device in the aforementioned embodiment of the present disclosure; the network device can execute the power headroom information transmission method executed by the network device in the aforementioned embodiment of the present disclosure.

[0432] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal device in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0433] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0434] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of a hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0435] Figure 9A is a schematic diagram of the structure of a terminal device 101 proposed in an embodiment of the present disclosure. As shown in Figure 9A, the terminal device 101 may include: at least one of a transceiver module 9101, a processing module 9102, etc. In some embodiments, the transceiver module 9101 is configured to send a first message, the first message including indication information, the indication information being used to indicate whether the first message contains first information, the first information being power headroom information corresponding to when the terminal device uses a first waveform for uplink transmission, the first waveform being different from the waveform currently used for uplink transmission of the terminal device. Optionally, the transceiver module 9101 may be used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, step S2102, but not limited thereto) executed by the terminal device 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module 9102 may be used to execute at least one of the other steps (for example, step S2103, but not limited thereto) executed by the terminal device 101 in any of the above methods, which will not be described in detail here.

[0436] Figure 9B is a structural diagram of a network device proposed in an embodiment of the present disclosure. As shown in Figure 9B, the network device 102 may include: at least one of a transceiver module 9201, a processing module 9202, etc. In some embodiments, the transceiver module 9201 is configured to receive a first message, the first message including indication information, the indication information being used to indicate whether the first message contains first information, the first information being power headroom information corresponding to when the terminal device uses a first waveform for uplink transmission, the first waveform being different from the waveform currently used for uplink transmission of the terminal device. Optionally, the transceiver module 9201 may be used to execute at least one of the communication steps such as sending and / or receiving (e.g., step S2101, step S2102, but not limited thereto) performed by the network device 102 in any of the above methods, which will not be described in detail here. Optionally, the processing module 9202 may be used to execute at least one of the other steps (e.g., step S2103, but not limited thereto) performed by the network device 102 in any of the above methods, which will not be described in detail here.

[0437] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0438] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0439] Figure 10A is a schematic diagram of the structure of a communication device 10100 proposed in an embodiment of the present disclosure. Communication device 10100 can be a network device (e.g., an access network device, a core network device, etc.), or a terminal device (e.g., a user device, etc.), or a chip, chip system, or processor that supports a network device in implementing any of the above methods, or a chip, chip system, or processor that supports a terminal device in implementing any of the above methods. Communication device 10100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0440] As shown in Figure 10A, the communication device 10100 includes one or more processors 10101. The processor 10101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 10100 can be used to perform any of the above methods. Optionally, one or more processors 10101 are used to call instructions to enable the communication device 10100 to perform any of the above methods.

[0441] In some embodiments, the communication device 10100 may further include one or more transceivers 10102. When the communication device 10100 includes one or more transceivers 10102, the transceiver 10102 may perform at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101 and step S2102, but not limited thereto), and the processor 10101 may perform at least one of the other steps (for example, step S2103, but not limited thereto).

[0442] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0443] In some embodiments, the communication device 10100 further includes one or more memories 10103 for storing data. Alternatively, all or part of the memories 10103 may be located outside the communication device 10100. In alternative embodiments, the communication device 10100 may include one or more interface circuits 10104. Optionally, the interface circuits 10104 are connected to the memories 10103 and may be configured to receive data from the memories 10103 or other devices, or to send data to the memories 10103 or other devices. For example, the interface circuits 10104 may read data stored in the memories 10103 and send the data to the processor 10101.

[0444] The communication device 10100 described in the above embodiments may be a network device or a terminal device, but the scope of the communication device 10100 described in the present disclosure is not limited thereto, and the structure of the communication device 10100 may not be limited by FIG. 10A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0445] 10B is a schematic diagram of the structure of a chip 10200 according to an embodiment of the present disclosure. If the communication device 10100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 10200 shown in FIG10B , but the present disclosure is not limited thereto.

[0446] Chip 10200 includes one or more processors 10201, and chip 10200 is used to execute any of the above methods.

[0447] In some embodiments, chip 10200 further includes one or more interface circuits 10204. Alternatively, the terms interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 10200 further includes one or more memories 10203 for storing data. Alternatively, all or part of memories 10203 may be located external to chip 10200.

[0448] Optionally, the interface circuit 10204 is connected to the memory 10203. The interface circuit 10204 can be used to receive data from the memory 10203 or other devices, and the interface circuit 10204 can be used to send data to the memory 10203 or other devices. For example, the interface circuit 10204 can read data stored in the memory 10203 and send the data to the processor 10201.

[0449] In some embodiments, the interface circuit 10204 performs at least one of the communication steps (e.g., step S2101 and step S2102, but not limited thereto) of the aforementioned method. The interface circuit 10204 performing the communication steps (e.g., step S2101 and step S2102, but not limited thereto) of the aforementioned method means, for example, that the interface circuit 10204 performs data exchange between the processor 10201, chip 10200, memory 10203, or a transceiver device. In some embodiments, the processor 10201 may perform at least one of the other steps (e.g., step S2103, but not limited thereto).

[0450] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0451] The embodiments of the present disclosure further provide a storage medium having instructions stored thereon. When the instructions are executed on the communication device 10100, the communication device 10100 is caused to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0452] The embodiments of the present disclosure further provide a program product, which, when executed by the communication device 10100, enables the communication device 10100 to perform any of the above methods. Optionally, the program product may be a computer program product.

[0453] The embodiments of the present disclosure also provide a computer program, which, when executed on a computer, enables the computer to execute any one of the above methods.

Claims

1. A method for transmitting power headroom information, characterized in that: The method comprises: A first message is sent, wherein the first message includes indication information, wherein the indication information is used to indicate whether the first message contains first information, wherein the first information is power margin information corresponding to a first waveform used by a terminal device for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

2. The method according to claim 1, characterized in that The first message is a power headroom report medium access control element PHR MAC CE.

3. The method according to claim 2, characterized in that The PHR MAC CE is a single-entry Single Entry PHR MAC CE, and the indication information is at least one bit of the Single Entry PHR MAC CE.

4. The method according to claim 3, characterized in that The indication information is a first value, and the Single Entry PHR MAC CE includes the first information; or, The indication information is not the first value, and the Single Entry PHR MAC CE does not include the first information.

5. The method according to claim 3 or 4, characterized in that: The Single Entry PHR MAC CE is an Enhanced Single Entry PHR MAC CE including multiple candidate beams or an Enhanced Single Entry PHR for multiple TRP MAC CE including multiple transmitting / receiving points TRP.

6. The method according to claim 2, characterized in that The PHR MAC CE is a Multiple Entry PHR MAC CE, which includes multiple power headroom parameter groups, one power headroom parameter group corresponds to one serving cell, and the indication information includes multiple indication parameters, one indication parameter corresponds to one serving cell.

7. The method according to claim 6, characterized in that One first information corresponds to one serving cell, wherein: An indication parameter satisfies the second condition, the Multiple Entry PHR MAC CE includes first information corresponding to a serving cell, and the serving cell is the serving cell corresponding to the one indication parameter; or, An indication parameter does not satisfy the second condition, and the Multiple Entry PHR MAC CE does not include the first information corresponding to the serving cell.

8. The method according to claim 7, characterized in that The indication parameter includes a first indication bit and / or a second indication bit, and the second condition includes any one of the following: The first indication bit is a second value; The second indication bit is a third value; The first indication bit is the second value, and the second indication bit is the third value; The first indication bit is the second value, the second indication bit is the third value, and the power headroom type is a first type, and the power headroom type is a parameter in a power headroom parameter group corresponding to the serving cell.

9. The method according to claim 8, characterized in that The power headroom parameter group includes the first indication bit; or, The power headroom parameter group does not include the second indication bit, and a plurality of second indication bits are included in at least one byte of the Multiple Entry PHR MAC CE.

10. The method according to any one of claims 6 to 9, characterized in that The Multiple Entry PHR MAC CE is an Enhanced Multiple Entry PHR MAC CE including multiple candidate beams or an Enhanced Multiple Entry PHR for multiple TRP MAC CE including multiple transmitting / receiving points TRP.

11. The method according to any one of claims 6 to 10, characterized in that The method further comprises: At least one downlink control information DCI format of the first bandwidth BWP is configured with dynamic waveform switching DWS, and the Multiple Entry PHR MAC CE includes first information corresponding to the first serving cell; Wherein, the first BWP is at least one of the following: The activated BWP of the first serving cell is configured with a PDCCH resource, and the first BWP is the activated BWP of the first serving cell; The activated BWP of the first service cell is not configured with PDCCH resources, the first BWP is the activated BWP of the second service cell, and the second service cell is used to schedule the first service cell.

12. The method according to any one of claims 1 to 11, characterized in that The sending of the first message comprises: At least one downlink control information DCI format of the second bandwidth BWP is configured with dynamic waveform switching DWS, and the first message is sent, and the second BWP is the activated BWP of the primary service cell of the terminal device.

13. The method according to any one of claims 1 to 12, characterized in that The first message also includes second information, where the second information is the power margin information corresponding to when the terminal device uses a second waveform for uplink transmission, and the second waveform is the waveform currently used by the terminal device.

14. The method according to any one of claims 1 to 15, characterized in that The method further comprises: A second message is received, where the second message includes third information, where the third information is used to indicate whether at least one downlink control information DCI format of the partial bandwidth BWP used by the terminal device is configured with dynamic waveform switching DWS.

15. A method for transmitting power headroom information, characterized in that: The method comprises: A first message is received, wherein the first message includes indication information, wherein the indication information is used to indicate whether the first message contains first information, wherein the first information is power margin information corresponding to a first waveform used by a terminal device for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

16. The method according to claim 15, characterized in that The first message is a power headroom report medium access control element PHR MAC CE.

17. The method according to claim 16, characterized in that The PHR MAC CE is a single-entry Single Entry PHR MAC CE, and the indication information is at least one bit of the Single Entry PHR MAC CE.

18. The method according to claim 17, characterized in that The indication information is a first value, and the Single Entry PHR MAC CE includes the first information; or, The indication information is not the first value, and the Single Entry PHR MAC CE does not include the first information.

19. The method according to claim 17 or 18, characterized in that The Single Entry PHR MAC CE is an Enhanced Single Entry PHR MAC CE including multiple candidate beams or an Enhanced Single Entry PHR for multiple TRP MAC CE including multiple transmitting / receiving points TRP.

20. The method according to claim 16, characterized in that The PHR MAC CE is a Multiple Entry PHR MAC CE, which includes multiple power headroom parameter groups, one power headroom parameter group corresponds to one serving cell, and the indication information includes multiple indication parameters, one indication parameter corresponds to one serving cell.

21. The method according to claim 20, characterized in that One first information corresponds to one serving cell, wherein: An indication parameter satisfies the second condition, the Multiple Entry PHR MAC CE includes first information corresponding to a serving cell, and the serving cell is the serving cell corresponding to the one indication parameter; or, An indication parameter does not satisfy the second condition, and the Multiple Entry PHR MAC CE does not include the first information corresponding to the serving cell.

22. The method according to claim 21, characterized in that The indication parameter includes a first indication bit and / or a second indication bit, and the second condition includes any one of the following: The first indication bit is a second value; The second indication bit is a third value; The first indication bit is the second value, and the second indication bit is the third value; The first indication bit is the second value, the second indication bit is the third value, and the power headroom type is a first type, and the power headroom type is a parameter in a power headroom parameter group corresponding to the serving cell.

23. The method according to claim 22, characterized in that The power headroom parameter group includes the first indication bit; or, The power headroom parameter group does not include the second indication bit, and a plurality of second indication bits are included in at least one byte of the Multiple Entry PHR MAC CE.

24. The method according to any one of claims 20 to 23, characterized in that The Multiple Entry PHR MAC CE is an Enhanced Multiple Entry PHR MAC CE including multiple candidate beams or an Enhanced Multiple Entry PHR for multiple TRP MAC CE including multiple transmitting / receiving points TRP.

25. The method according to any one of claims 20 to 24, characterized in that The method further comprises: At least one downlink control information DCI format of the first bandwidth BWP is configured with dynamic waveform switching DWS, and the Multiple Entry PHR MAC CE includes first information corresponding to the first serving cell; Wherein, the first BWP is at least one of the following: The activated BWP of the first serving cell is configured with a PDCCH resource, and the first BWP is the activated BWP of the first serving cell; The activated BWP of the first service cell is not configured with PDCCH resources, the first BWP is the activated BWP of the second service cell, and the second service cell is used to schedule the first service cell.

26. The method according to any one of claims 15 to 25, characterized in that The receiving the first message comprises: At least one downlink control information DCI format of the second bandwidth BWP is configured with dynamic waveform switching DWS, and the first message is received, and the second BWP is the activated BWP of the primary service cell of the terminal device.

27. The method according to any one of claims 15 to 26, characterized in that The first message also includes second information, where the second information is the power margin information corresponding to when the terminal device uses a second waveform for uplink transmission, and the second waveform is the waveform currently used by the terminal device.

28. The method according to any one of claims 15 to 27, characterized in that The method further comprises: A second message is sent, where the second message includes third information, where the third information is used to indicate whether at least one downlink control information DCI format of the partial bandwidth BWP used by the terminal device is configured with dynamic waveform switching DWS.

29. A terminal device, characterized in that: include: The transceiver module is configured to send a first message, wherein the first message includes indication information, wherein the indication information is used to indicate whether the first message contains first information, wherein the first information is power margin information corresponding to a first waveform used by a terminal device for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

30. A network device, characterized in that: include: The transceiver module is configured to receive a first message, wherein the first message includes indication information, wherein the indication information is used to indicate whether the first message contains first information, wherein the first information is power margin information corresponding to a first waveform used by a terminal device for uplink transmission, and the first waveform is different from the waveform currently used by the terminal device for uplink transmission.

31. A communication device, characterized in that: include: one or more processors; The communication device is used to execute the power headroom information transmission method according to any one of claims 1 to 14 or claims 15 to 28.

32. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is enabled to perform the power headroom information transmission method according to any one of claims 1 to 14 or claims 15 to 28.

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