Communication method, and terminal, network device, communication system and storage medium

Abstract

The present disclosure relates to a communication method, and a terminal, a network device, a communication system and a storage medium. The communication method comprises: sending a power headroom report, wherein the power headroom report comprises power headroom information, and the power headroom information is used for waveform handover on a physical uplink shared channel (PUSCH). In the present disclosure, a network device can more accurately make a scheduling decision for uplink transmission waveform handover.

Description

Communication method, terminal, network device, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, a terminal, a network device, a communication system, and a storage medium. Background Art

[0002] Two uplink transmission waveforms are supported in the physical uplink shared channel (PUSCH) transmission: cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) and discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM). Compared with CP-OFDM, the DFT-S-OFDM waveform is more suitable for uplink coverage-limited scenarios, such as cell-edge users, due to its lower peak-to-average power ratio (PAPR).

[0003] Summary of the Invention

[0004] When dynamically switching the uplink transmission waveform, the waveform switching decision cannot be well determined.

[0005] The embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising: sending a power headroom report, the power headroom report comprising power headroom information, the power headroom information being used for waveform switching on the PUSCH.

[0007] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising: receiving a power headroom report, the power headroom report comprising power headroom information, the power headroom information being used for waveform switching on the PUSCH.

[0008] According to a third aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising: a terminal sending a power headroom report, the power headroom report including power headroom information, the power headroom information being used for waveform switching on the PUSCH; and a network device receiving the power headroom report.

[0009] According to a fourth aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising: a network device sending system information, the system information including configuration information, the configuration information being used to instruct a terminal to use a first waveform; the terminal receiving the system information, accessing the network device through a random access process, and using the first waveform as the waveform of message 3 during the random access process; after the terminal accesses the network device, first information is sent, the first information being used to instruct the terminal to send power information of different waveforms used for PUSCH under full power; after receiving the first information, the network device sends second information, the second information being used to schedule the waveform used by the terminal to send PUSCH to be a second waveform; the terminal determines to use the second waveform to send PUSCH, the first waveform and the second waveform being the same or different.

[0010] According to a fifth aspect of an embodiment of the present disclosure, a terminal is provided, comprising: a transceiver module for sending a power headroom report, wherein the power headroom report includes power headroom information of a physical uplink shared channel PUSCH sent by the terminal, and the power headroom information is used for waveform switching used by the PUSCH.

[0011] According to the sixth aspect of an embodiment of the present disclosure, a network device is provided, comprising: a transceiver module for receiving a power headroom report, wherein the power headroom report includes power headroom information of a physical uplink shared channel PUSCH sent by the terminal, and the power headroom information is used for waveform switching used by the PUSCH.

[0012] According to a seventh aspect of an embodiment of the present disclosure, a terminal is provided, comprising: one or more processors; the processors are configured to call instructions so that the terminal executes the communication method described in the first aspect.

[0013] According to an eighth aspect of an embodiment of the present disclosure, a network device is provided, comprising: one or more processors; the processors are configured to call instructions so that the network device executes the communication method described in the second aspect.

[0014] According to a ninth aspect of an embodiment of the present disclosure, a communication system is provided, comprising a terminal and a network device, wherein the terminal is configured to implement the communication method described in any one of the first aspects, and the network device is configured to implement the communication method described in the second aspect.

[0015] According to a tenth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and is characterized in that when the instructions are executed on a communication device, the communication device executes the communication method described in any one of the first aspects.

[0016] According to an eleventh aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and wherein when the instructions are executed on a communication device, the communication device executes the communication method described in any one of the first aspects.

[0017] Through the solution provided by the embodiments of the present disclosure, network equipment can make scheduling decisions for uplink transmission waveform switching more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0020] FIG1b is a schematic diagram showing semi-static configuration of radio resource control according to an embodiment of the present disclosure.

[0021] FIG1c is a schematic diagram showing PAPR characteristics of an uplink transmission waveform according to an embodiment of the present disclosure.

[0022] FIG1d is a schematic diagram showing a PHR configuration format of a single carrier according to an embodiment of the present disclosure.

[0023] FIG1e is a schematic diagram of a multi-carrier PHR configuration format according to an embodiment of the present disclosure.

[0024] FIG2 is a schematic diagram showing interaction of a communication method according to an embodiment of the present disclosure.

[0025] FIG3 a is a flow chart of a communication method according to an embodiment of the present disclosure.

[0026] FIG3 b is a flow chart of a communication method according to an embodiment of the present disclosure.

[0027] FIG3 c is a flow chart of a communication method according to an embodiment of the present disclosure.

[0028] FIG4 a is a flow chart of a communication method according to an embodiment of the present disclosure.

[0029] FIG4 b is a flow chart of a communication method according to an embodiment of the present disclosure.

[0030] FIG4c is a flow chart of a communication method according to an embodiment of the present disclosure.

[0031] FIG5 a is a flow chart of a communication method according to an embodiment of the present disclosure.

[0032] FIG5 b is a flow chart of a communication method according to an embodiment of the present disclosure.

[0033] FIG6 a is a schematic diagram of a terminal according to an embodiment of the present disclosure.

[0034] FIG6 b is a schematic diagram of a network device according to an embodiment of the present disclosure.

[0035] Fig. 7a is a schematic diagram showing a communication device according to an exemplary embodiment.

[0036] FIG7 b is a schematic diagram showing a chip structure according to an exemplary embodiment. DETAILED DESCRIPTION

[0037] The embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system, and a storage medium.

[0038] In a first aspect, an embodiment of the present disclosure proposes a communication method, which includes: sending a power headroom report, wherein the power headroom report includes power headroom information of a physical uplink shared channel PUSCH sent by the terminal, and the power headroom information is used for waveform switching used by the PUSCH.

[0039] In the above embodiment, the terminal sends a power headroom report, wherein the power headroom report includes power headroom information for waveform switching used by PUSCH, so that the network device can make scheduling decisions for uplink transmission waveform switching more accurately based on the power headroom report.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the power headroom information includes at least one of the following: peak to average power ratio PAPR; the difference between PAPRs corresponding to different waveforms; maximum power backoff value MPR value; the difference between MPR values ​​corresponding to different waveforms; power headroom PH value; the difference between PH values ​​corresponding to different waveforms; maximum transmission power Pcmax value; the difference between Pcmax values ​​corresponding to different waveforms.

[0041] In the above embodiment, the terminal sends the above at least one kind of power headroom information so that the terminal can selectively report a certain kind of power headroom information or report multiple kinds of power headroom information at the same time in various situations, thereby improving communication efficiency.

[0042] In combination with some embodiments of the first aspect, in some embodiments, at least one of the following is met, triggering the measurement and / or sending of the power headroom report: the power parameter value of a single PUSCH transmission meets the power parameter threshold value; the proportion of power parameter values ​​that meet the power parameter threshold value in multiple PUSCH transmissions is greater than the proportion threshold; the number of transmissions in which the power parameter value meets the power parameter threshold value in multiple PUSCH transmissions is greater than the number threshold; the power parameter value of a single PUSCH transmission occasion (TO) meets the power parameter threshold value; the proportion of power parameter values ​​that meet the power parameter threshold value in multiple PUSCH transmission occasions is greater than the proportion threshold; the number of transmission occasions in which the power parameter value meets the power parameter threshold value in multiple PUSCH transmission occasions is greater than the number threshold.

[0043] In the above embodiment, the measurement and transmission of the power headroom report are triggered when at least one condition is met. This allows for timely triggering of the measurement and transmission of the power headroom report in some cases. In other cases, the effectiveness of triggering the transmission of the power headroom report is increased to avoid the situation where the triggering conditions for the power headroom report are too simple, resulting in frequent transmission of the power headroom report, which in turn causes repeated waveform switching and reduces system gain.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, the power parameter value includes at least one of the following: pH values ​​corresponding to different waveforms; differences in pH values ​​corresponding to different waveforms; MPR values ​​corresponding to different waveforms; differences between MPR values ​​corresponding to different waveforms; Pcmax values ​​corresponding to different waveform configurations; differences between Pcmax values ​​corresponding to different waveform configurations; PAPR values ​​corresponding to different waveforms; and differences in PAPR values ​​corresponding to different waveforms.

[0045] In the above embodiment, the power parameter value includes at least one of the above items, so that in some cases, the measurement and transmission of the power headroom report can be triggered in a timely manner. In other cases, it is to avoid that the triggering condition of the power headroom report is too simple, resulting in frequent transmission of the power headroom report and repeated waveform switching.

[0046] In combination with some embodiments of the first aspect, in some embodiments, satisfying the power parameter threshold value includes at least one of the following: the PH value is greater than the first PH threshold value; the PH value is less than or equal to the second PH threshold value; the MPR values ​​corresponding to different waveforms are higher than the MPR threshold value; the difference between the MPR values ​​corresponding to different waveforms is higher than the difference threshold value; the Pcmax value is greater than the first Pcmax value threshold value; the Pcmax value is less than or equal to the second Pcmax value threshold value.

[0047] In the above embodiment, based on at least one of the above situations, it is determined that the power parameter threshold is met, and the measurement and reporting of the power headroom is triggered, so that the network device can make more accurate scheduling decisions for waveform switching.

[0048] In combination with some embodiments of the first aspect, in some embodiments, the single PUSCH transmission or the multiple PUSCH transmissions include: a single or multiple PUSCH transmissions after the most recent power headroom report is sent; the single PUSCH transmission opportunity or the multiple PUSCH transmission opportunities include a single or multiple PUSCH transmission opportunities after the most recent power headroom report is sent.

[0049] In the above embodiment, the PUSCH transmission for measuring the power headroom information by the terminal may be performed after the last power headroom report is sent, so that the measured power headroom information is more accurate.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the multiple PUSCH transmissions or the multiple PUSCH transmission opportunities include: multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling; multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling and based on non-scheduling; multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling and based on non-scheduling with the same waveform configuration.

[0051] In the above embodiment, the terminal may determine whether to trigger the measurement and reporting of the power headroom report based on the scheduled PUSCH transmission, or may determine whether to trigger the measurement and reporting of the power headroom report based on the scheduled and unscheduled PUSCH transmissions, so as to more accurately determine whether to trigger the measurement and reporting of the power headroom report.

[0052] In combination with some embodiments of the first aspect, in some embodiments, a single PUSCH transmission or a single PUSCH transmission opportunity includes: the first PUSCH transmission or the first PUSCH transmission opportunity; the most recent PUSCH transmission or the most recent PUSCH transmission opportunity.

[0053] In the above embodiment, a single PUSCH transmission may be the first PUSCH transmission or the most recent PUSCH transmission, so that the first or the most recent transmission can be adaptively selected for various situations to improve communication efficiency.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the power headroom information includes power headroom information of a target waveform; or, the power headroom information includes power headroom information of a current waveform and a target waveform.

[0055] In the above embodiment, the power headroom information may include the target waveform, that is, the terminal may only report the power headroom information of the target waveform, so that the network device can more accurately schedule the dynamic switching of the uplink transmission waveform based on the power headroom information of the target waveform, while saving resources. Alternatively, the power headroom information may include the power headroom information of the current waveform and the target waveform, so that the network device can more accurately schedule the dynamic switching of the uplink transmission waveform based on the power headroom information of the current waveform and the target waveform.

[0056] In combination with some embodiments of the first aspect, in some embodiments, the waveform includes at least one of the following: cyclic prefix orthogonal frequency division multiplexing CP-OFDM; discrete Fourier transform-based spread spectrum orthogonal frequency division multiplexing DFT-S-OFDM.

[0057] In the above embodiment, the waveform includes at least one of the above items, so as to realize mutual switching of the above waveforms and improve communication efficiency.

[0058] In combination with some embodiments of the first aspect, in some embodiments, first information is received, where the first information is determined based on the power headroom report, and the first information is used to schedule a waveform used for sending a PUSCH.

[0059] In the above embodiment, the terminal receives the first information and can schedule the waveform used by the PUSHC to improve communication efficiency.

[0060] In combination with some embodiments of the first aspect, in some embodiments, second information is received, where the second information includes conversion precoding information, where the conversion precoding information is used to indicate a waveform used to send message 3 during random access.

[0061] In the above embodiment, the terminal receives the second information, which can instruct the terminal to use a waveform to improve communication efficiency.

[0062] In a second aspect, an embodiment of the present disclosure proposes a communication method, which includes: receiving a power headroom report, where the power headroom report includes power headroom information, and the power headroom information is used for waveform switching on the PUSCH.

[0063] In combination with some embodiments of the second aspect, in some embodiments, the power headroom information includes at least one of the following: peak to average power ratio PAPR; the difference between PAPRs corresponding to different waveforms; maximum power backoff value MPR value; the difference between MPR values ​​corresponding to different waveforms; power headroom PH value; the difference between PH values ​​corresponding to different waveforms; maximum transmission power Pcmax value; the difference between Pcmax values ​​corresponding to different waveforms.

[0064] In combination with some embodiments of the second aspect, in some embodiments, the power parameter value of a single PUSCH transmission satisfies the power parameter threshold value; or, the proportion of power parameter values ​​that meet the power parameter threshold value in multiple PUSCH transmissions is greater than the proportion threshold; or, the number of transmissions in which the power parameter value meets the power parameter threshold value in multiple PUSCH transmissions is greater than the number threshold; or, the power parameter value of a single PUSCH transmission opportunity satisfies the power parameter threshold value; or, the proportion of power parameter values ​​that meet the power parameter threshold value in multiple PUSCH transmission opportunities is greater than the proportion threshold; or, the number of transmission opportunities in which the power parameter value meets the power parameter threshold value in multiple PUSCH transmission opportunities is greater than the number threshold.

[0065] In conjunction with some embodiments of the second aspect, in some embodiments, the power parameter value includes at least one of the following: pH values ​​corresponding to different waveforms; differences in pH values ​​corresponding to different waveforms; MPR values ​​corresponding to different waveforms; differences between MPR values ​​corresponding to different waveforms; Pcmax values ​​corresponding to different waveform configurations; differences between Pcmax values ​​corresponding to different waveform configurations; PAPR values ​​corresponding to different waveforms; and differences in PAPR values ​​corresponding to different waveforms.

[0066] In combination with some embodiments of the second aspect, in some embodiments, satisfying the power parameter threshold value includes at least one of the following: the PH value is greater than the first PH threshold value; the PH value is less than or equal to the second PH threshold value; the MPR values ​​corresponding to different waveforms are higher than the MPR threshold value; the difference between the MPR values ​​corresponding to different waveforms is higher than the difference threshold value; the Pcmax value is greater than the first Pcmax value threshold value; the Pcmax value is less than or equal to the second Pcmax value threshold value.

[0067] In combination with some embodiments of the second aspect, in some embodiments, the single PUSCH transmission or the multiple PUSCH transmissions include: a single or multiple PUSCH transmissions after the most recent power headroom report is sent; the single PUSCH transmission opportunity or the multiple PUSCH transmission opportunities include a single or multiple PUSCH transmission opportunities after the most recent power headroom report is sent.

[0068] In combination with some embodiments of the second aspect, in some embodiments, the multiple PUSCH transmissions or the multiple PUSCH transmission opportunities include: multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling; multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling and based on non-scheduling; multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling and based on non-scheduling with the same waveform configuration.

[0069] In combination with some embodiments of the second aspect, in some embodiments, a single PUSCH transmission or a single PUSCH transmission opportunity includes: the first PUSCH transmission or the first PUSCH transmission opportunity; the most recent PUSCH transmission or the most recent PUSCH transmission opportunity.

[0070] In combination with some embodiments of the second aspect, in some embodiments, the power headroom information includes power headroom information of a target waveform; or, the power headroom information includes power headroom information of a current waveform and a target waveform.

[0071] In combination with some embodiments of the first aspect, in some embodiments, first information is sent, where the first information is determined based on the power headroom report, and the first information is used to schedule a waveform used for sending a PUSCH.

[0072] In combination with some embodiments of the first aspect, in some embodiments, second information is sent, where the second information includes conversion precoding information, and the conversion precoding information is used to indicate the waveform used to send message 3 during the random access process.

[0073] In a third aspect, an embodiment of the present disclosure proposes a communication method, which includes: a terminal sending a power headroom report, wherein the power headroom report includes power headroom information, and the power headroom information is used for waveform switching on the PUSCH; and a network device receives the power headroom report.

[0074] In a fourth aspect, an embodiment of the present disclosure proposes a terminal, which includes at least one of a communication module and a processing module; wherein the terminal is used to execute the first aspect and the optional implementation method of the first aspect.

[0075] In combination with some embodiments of the fourth aspect, in some embodiments, after the terminal accesses the network device through the first waveform, before the terminal sends a remaining report, the method also includes: the terminal determines that a first condition is met, the first condition is related to the power of the currently used waveform, or the first condition is related to the power of the second waveform.

[0076] In a fifth aspect, an embodiment of the present disclosure proposes a network device, including a communication module; wherein the above-mentioned network device is used to execute the second aspect and the optional implementation method of the second aspect.

[0077] In a sixth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; wherein the above-mentioned terminal is used to execute the first aspect and the optional implementation method of the first aspect.

[0078] In a seventh aspect, an embodiment of the present disclosure proposes a network device, comprising: one or more processors; wherein the above-mentioned network device is used to execute the second aspect and the optional implementation method of the second aspect.

[0079] In the eighth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal and a network device; wherein the terminal is configured to execute the method described in the first and third aspects, and the optional implementation methods of the first and third aspects, and the network device is configured to execute the method described in the second and third aspects, and the optional implementation methods of the second and third aspects.

[0080] In the ninth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first and third aspects, and the second and third aspects.

[0081] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and third aspects, and the second and third aspects.

[0082] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method as described in the first and third aspects, and the optional implementation of the second and third aspects.

[0083] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0084] It is understandable that the above-mentioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute 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.

[0085] In some embodiments, the terms communication method and information processing method are interchangeable, the terms communication device and information processing device are interchangeable, and the terms information processing system and communication system are interchangeable.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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., can 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 can be understood as a singular expression or a plural expression.

[0090] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0091] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0099] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0100] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0101] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0102] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0103] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0104] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0105] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0106] 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.

[0107] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0108] As shown in FIG. 1 a , a communication system 100 includes a terminal 101 and a network device 102 .

[0109] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0110] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0111] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal 101 device, an augmented reality (AR) terminal 101 device, a wireless terminal 101 device in industrial control, a wireless terminal 101 device in self-driving, a wireless terminal 101 device in remote medical surgery, a wireless terminal 101 device in a smart grid, a wireless terminal 101 device in transportation safety, a wireless terminal 101 device in a smart city, and at least one of a wireless terminal 101 device in a smart home, but is not limited thereto.

[0112] In some embodiments, the access network device is, for example, a node or device that accesses the terminal 101 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 wireless fidelity (WiFi) system, but is not limited thereto.

[0113] 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.

[0114] 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. 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.

[0115] In some embodiments, the core network device may be a device including one or more network elements, or may be multiple devices or a group of devices including one or more network elements, or may be physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0116] 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.

[0117] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0118] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (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).

[0119] In some embodiments, uplink coverage has always been one of the bottlenecks of system performance, which will affect signal quality and user experience. Uplink coverage enhancement is an issue that needs to be urgently addressed.

[0120] In some embodiments, waveforms for uplink transmission are supported in new radio (NR), such as CP-OFDM and DFT-S-OFDM.

[0121] In some embodiments, the uplink transmission waveform is semi-statically configured through Radio Resource Control (RRC), and the parameters for configuring the PUSCH are shown in FIG1b .

[0122] In some embodiments, the PAPR of the DFT-S-OFDM waveform is low, and the PAPR of the CP-OFDM waveform is high.

[0123] For example, as shown in FIG1c , in some cases, the PAPR of the DFT-S-OFDM waveform is approximately 3 decibels (dB) lower than the PAPR of the CP-OFDM waveform.

[0124] Therefore, the DFT-S-OFDM waveform is more suitable for scenarios with limited uplink coverage, such as cell-edge users. For example, in frequency range (FR) 2, the DFT-S-OFDM waveform has better uplink coverage.

[0125] In some embodiments, one bit is added to downlink control information (DCI) to indicate a specific uplink scheduling PUSCH channel transmission waveform.

[0126] In some embodiments, due to high-order modulation and transmission bandwidth configurations, a maximum transmit power reduction allowed for a terminal is defined. For example, for terminal power class (PC) 2, Table 2 defines the maximum power reduction (MPR) allowed for channel bandwidths that meet the following two criteria; for PC 3, Table 3 defines the maximum power reduction (MPR) allowed for channel bandwidths that meet the following two criteria.

[0127] Table 2

[0128] Table 3

[0129] In some embodiments, the additional emission requirement may be notified to the terminal via network signaling. Each additional emission requirement is associated with a unique network signaling (NS) value, which is indicated in RRC signaling by the NR band number of the applicable operating frequency band and the associated value in the field. For example, the NR band number of the applicable operating frequency band and the associated value in the field may be additional spectrum emission.

[0130] Exemplarily, to meet additional requirements, an additional maximum power reduction (A-MPR) is permitted for the maximum output power specified in Table 2 and / or Table 3. Unless otherwise specified, the total reduction in the maximum transmit power of the terminal is the maximum of the MPR and the A-MPR. MPR refers to the above description.

[0131] In some embodiments, the terminal is allowed to set the configured maximum output power for the carrier of the serving cell in each time slot. For example, the configured maximum output power P is set for the carrier f of the serving cell c. CMAX,f,c .

[0132] Optionally, P CMAX,f,c The value of P CMAX_L,f,c and P CMAX_H,f,c Between. That is Among them, P CMAX,f,c is the maximum transmit power, P CMAX_L,f,c is the lower value of the maximum transmit power, P CMAX_H,f,c The high value of the maximum transmit power.

[0133] Optionally, P CMAX_L,f,c Determined based on Formula 1: P CMAX_L,f,c =MIN{P EMAX,c -ΔT C,c (P PowerClass -ΔP PowerClass )-MAX(MAX(MPR c +ΔMPR c ,A-MPR c )+ΔT IB,c +ΔT C,c +ΔT RxSRS ,P-MPR c )} Formula 1

[0134] Where, f represents the carrier frequency, c represents the serving cell, and P EMAX,c Indicates the maximum allowable power of the network device configuration, P PowerClass Indicates the terminal defined power without considering other non-ideal factors (tolerance), ΔP PowerClass Indicates that the maximum power of the terminal is reduced or the power fallback value is configured based on the duty cycle to ensure RF radiation exposure, MPR c Indicates the maximum power reduction due to modulation mode and transmission bandwidth configuration factors, A-MPR c Indicates the additional power backoff required by network signaling to ensure the relevant radiation requirements of different operating frequency bands, ΔT IB,cIndicates the additional power back-off value under multi-carrier, ΔT C,c Indicates the additional power backoff value corresponding to the transmission of special edge configuration, ΔT RxSRS Indicates the terminal power adjustment value related to SRS antenna switching, P-MPR c Indicates the maximum power reduction of power management.

[0135] Optionally, P CMAX_H,f,c Determined based on Formula 2: P CMAX_H,f,c =MIN{P EMAX,c ,P PowerClass -ΔP PowerClass} Formula 2

[0136] In some embodiments, the terminal may report a power headroom report (PHR). The PHR may include power headroom (PH), maximum transmit power P CMAX,f,c and power management maximum power reduction (P-MPR). The power headroom reflects the amount of additional transmit power that the terminal can transmit with reference to the current PUSCH power level, and P CMAX,f,c It reflects the maximum power that the terminal can deliver in this situation. The current protocol stipulates that P-MPR is only reported for the FR2 band. It can be understood that PHR provides instantaneous information about a set of parameters for reporting specific PUSCH transmissions of network devices.

[0137] For example, Figure 1d shows the currently specified PHR configuration format for a single carrier. The P indication field is used to indicate whether there is MPE; the reserved bit can be denoted as R. It can be understood that the reserved bit usually does not contain any information and is mainly used to record the corresponding newly added data when necessary. The power margin is the above-mentioned PH, where in the case of a single carrier, the PH information corresponds to the PUSCH of the terminal, that is, type 1. At the same time, the PH is the PH corresponding to the primary cell (PCell). MPE or reserved bit indicates that this field can be MPE-related information or a reserved bit. Among them, the MPE-related information is used to record P-MPR in the case of FR2.

[0138] For another example, Figure 1e shows the PHR configuration format in a multi-carrier case. Among them, C1 to C7 can be used to indicate the PHR corresponding to different carriers respectively. It can be understood that the multi-carrier PHR can be regarded as a combination of multiple single-carrier PHRs. Type 2 can correspond to the physical uplink control channel (PUCCH), and the special cell (SpCell) can include a PCell and a primary secondary cell (PSCell). The serving cell can be a PCell, a secondary cell (SCell), a PSCell, or a SpCell, etc.

[0139] In some embodiments, two uplink waveforms are supported for PUSCH transmission: CP-OFDM and DFT-S-OFDM. Compared to CP-OFDM, DFT-S-OFDM is more suitable for uplink coverage-limited scenarios, such as cell-edge users, due to its lower PAPR. Therefore, dynamic switching between the CP-OFDM and DFT-S-OFDM waveforms is possible.

[0140] When dynamically switching the uplink transmission waveform, there is a problem of inaccurate scheduling.

[0141] Therefore, the present disclosure reports the power information of different waveforms used by PUSCH simultaneously with reporting the terminal capability information, so that the network device can more accurately and dynamically switch the waveform used by PUSCH.

[0142] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the embodiment of the present disclosure relates to a communication method for use in a communication system 100, the method comprising:

[0143] Step S2101 , the network device 102 sends system information to the terminal 101 .

[0144] In some embodiments, the terminal 101 receives system information sent by the network device.

[0145] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0146] 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.

[0147] 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", and "parameter" can be used interchangeably.

[0148] In some embodiments, the system information includes configuration information, where the configuration information is used to instruct the terminal to use the first waveform.

[0149] In some embodiments, the configuration information is used to indicate the waveform of the terminal random access procedure message 3.

[0150] In some embodiments, the terminal receives system information, accesses the network device through a random access procedure, and uses the first waveform as the waveform of message 3 during the random access procedure.

[0151] Step S2102 , the network device 102 sends second information to the terminal 101 .

[0152] In some embodiments, the terminal 101 receives second information sent by the network device.

[0153] In some embodiments, after the terminal receives the network device, the terminal receives the second information.

[0154] In some embodiments, the second information includes conversion and precoding information, and the conversion and coding information is used to indicate the waveform used to send message 3 during the random access process.

[0155] In some embodiments, transform precoding of type 1 and type 2 is enabled or disabled. If this field is not present, the terminal enables or disables transform precoding based on the message (MSG) 3 - transformprecoder field in the RACH-ConfigCommon directly included in the BWP configuration (i.e., not included in the additionalRACH-ConfigList).

[0156] In some embodiments, the terminal determines the waveform used to transmit the PUSCH based on the second information. That is, the terminal determines the waveform used to transmit the PUSCH based on the waveform used to transmit Message 3 during the random access process. For example, if the waveform used to transmit Message 3 during the random access process is CP-OFDM, the terminal may confirm that the waveform used to transmit the PUSCH is CP-OFDM.

[0157] In some embodiments, the network device semi-statically configures the waveform used by the terminal to send the PUSCH through RRC signaling.

[0158] In some embodiments, RRC signaling includes parameters for indicating a waveform, such as transform precoder parameters. For example, if the transform precoder parameters include enabled information, the terminal can be configured to use a DFT-S-OFDM waveform. For another example, if the transform precoder parameters include disabled information, the terminal can be configured to use another waveform, such as a CP-OFDM waveform.

[0159] In some embodiments, the RRC signaling does not include parameters for indicating the waveform. The terminal may determine the waveform used to send the PUSCH based on the second information, that is, determine the waveform used to send the PUSCH based on the waveform indicated by message 3 during the random access procedure.

[0160] In some embodiments, after the terminal accesses the network device, first information is sent, where the first information is used to indicate power information of different waveforms used by the terminal to send PUSCH under full power.

[0161] Step S2103: Send PHR.

[0162] In some embodiments, the network device 102 receives the PHR sent by the terminal 101 .

[0163] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0164] 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.

[0165] In some embodiments, the PHR includes power headroom information for PUSCH transmission by the terminal; alternatively, the PHR indicates the difference between the PUSCH transmit power in the current terminal's BWP and the maximum allowed transmit power. The value of PH can be positive, negative, or 0. The PUSCH transmit power is calculated using Formula 1 above and is not the actual transmit power of the terminal, so the value of PH can be negative.

[0166] 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.

[0167] In some embodiments, the power headroom information is used for switching the waveform used by the PUSCH.

[0168] In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.

[0169] Optionally, the power headroom information includes PAPR.

[0170] Optionally, the power headroom information includes a difference between PAPRs corresponding to different waveforms.

[0171] Optionally, the power headroom information includes a maximum power backoff value MPR value.

[0172] Optionally, the power headroom information includes a difference between MPR values ​​corresponding to different waveforms.

[0173] Optionally, the power headroom information includes a power headroom PH value.

[0174] Optionally, the power headroom information includes a difference between PH values ​​corresponding to different waveforms.

[0175] Optionally, the power headroom information includes a maximum transmission power Pcmax value.

[0176] Optionally, the power headroom information includes a difference between Pcmax values ​​corresponding to different waveforms.

[0177] In some embodiments, the power headroom information includes one or more of the above.

[0178] In some embodiments, the power headroom information includes power headroom information of a target waveform.

[0179] For example, the PHR includes a PHR corresponding to the target waveform. In some embodiments, the waveform may include CP-OFDM. In some embodiments, the waveform may include DFT-S-OFDM.

[0180] Because the power headroom information involves the difference between parameters of different waveforms, both terminal 101 and network device 102 can consider it to be the difference between the parameters of the currently used waveform and the parameters of the target waveform. Specifically, for network device 102, if the waveform used by the terminal is configured by network device 102, the network device can determine the waveform currently used by terminal 101.

[0181] Of course, the above waveforms are only illustrative examples, and the waveforms used by PUSCH are not limited thereto, and this disclosure does not impose any limitation thereto.

[0182] For example, the target waveform may be a waveform after dynamic waveform switching.

[0183] In some embodiments, the target waveform can be determined based on different scenarios. For example, for scenarios with limited uplink coverage, such as cell-edge users, the DFT-S-OFDM waveform is more suitable than CP-OFDM due to its lower PAPR. Therefore, if the currently used waveform is the CP-OFDM waveform, the target waveform can be the DFT-S-OFDM waveform. The terminal can send the PHR corresponding to the DFT-S-OFDM waveform. The network device can switch the waveform based on the PHR, switching the CP-OFDM waveform to the DFT-S-OFDM waveform.

[0184] Of course, the above examples are only exemplary and are not limited to those in this disclosure.

[0185] In some embodiments, the PHR may include an identifier to indicate whether the PHR corresponds to the current waveform or the target waveform. The network device may determine whether the received PHR corresponds to the waveform currently used by the terminal or the target waveform based on the identifier or convention in the PHR.

[0186] In some embodiments, the power headroom information includes power headroom information of a target waveform, and the power headroom information includes a pH value, a Pcmax value, and a difference between a current waveform and a target waveform PAPR of the target waveform.

[0187] In some embodiments, the power headroom information includes power headroom information of a target waveform, and the power headroom information includes a pH value, a Pcmax value, and a difference between the current waveform and the target waveform MPR of the target waveform.

[0188] In some embodiments, the power headroom information includes a pH value of the target waveform, a Pcmax value, a difference between the PAPR of the current waveform and the target waveform, an MPR value of the target waveform, and a difference between the MPR of the current waveform and the target waveform.

[0189] In some embodiments, the power headroom information includes power headroom information of a target waveform, the power headroom information including a pH value of the target waveform, a pH value difference between the current waveform and the target waveform, a difference between Pcmax values ​​of the current waveform and the target waveform, and a difference between PAPR of the current waveform and the target waveform.

[0190] In some embodiments, the power headroom information includes power headroom information of a target waveform, and the power headroom information includes a pH difference between the current waveform and the target waveform, a Pcmax difference between the current waveform and the target waveform, and an MPR difference between the current waveform and the target waveform.

[0191] In some embodiments, the power headroom information includes a pH difference between the current waveform and the target waveform, a Pcmax difference between the current waveform and the target waveform, a PAPR difference between the current waveform and the target waveform, and an MPR difference between the current waveform and the target waveform.

[0192] In some embodiments, the power headroom information includes power headroom information of the current waveform and the target waveform. For example, the PHR includes the PHR corresponding to the current waveform and the PHR corresponding to the target waveform.

[0193] In some embodiments, the power headroom information includes the pH value, the Pcmax value, and the PAPR of the current waveform and the target waveform.

[0194] In some embodiments, the power headroom information includes a pH value of the current waveform and a target waveform, a Pcmax value, and a difference between the PAPRs of the current waveform and the target waveform.

[0195] In some embodiments, the power headroom information includes pH values, Pcmax values, and MPR values ​​of the current waveform and the target waveform.

[0196] In some embodiments, the power headroom information includes a pH value, a Pcmax value, and a difference between the MPRs of the current waveform and the target waveform.

[0197] In some embodiments, the power headroom information includes a pH value, a Pcmax value, an MPR value, and a PAPR value of the current waveform and the target waveform.

[0198] In some embodiments, the power headroom information includes a pH value of the current waveform and a target waveform, a Pcmax value, a difference between the MPRs of the current waveform and the target waveform, and a difference between the PAPRs of the current waveform and the target waveform.

[0199] In some embodiments, the power headroom information includes a pH value difference between the current waveform and the target waveform, a Pcmax value, a difference between the Pcmax values ​​of the current waveform and the target waveform, and PAPRs of the current waveform and the target waveform.

[0200] In some embodiments, the power headroom information includes a pH difference between the current waveform and the target waveform, a Pcmax value, a difference between the Pcmax values ​​of the current waveform and the target waveform, and a difference between the PAPRs of the current waveform and the target waveform.

[0201] In some embodiments, the power headroom information includes a pH value difference between the current waveform and the target waveform, a Pcmax value, a difference between the Pcmax values ​​of the current waveform and the target waveform, and an MPR value.

[0202] In some embodiments, the power headroom information includes a pH difference between the current waveform and the target waveform, a Pcmax value, a difference between the Pcmax values ​​of the current waveform and the target waveform, a difference between the PAPR values ​​of the current waveform and the target waveform, and a difference between the MPR values ​​of the current waveform and the target waveform.

[0203] In some embodiments, the power headroom information includes pH values ​​of the current waveform and the target waveform, a pH difference between the current waveform and the target waveform, a Pcmax value, a difference between the Pcmax values ​​of the current waveform and the target waveform, a PAPR, and an MPR value.

[0204] In some embodiments, the power headroom information includes pH values ​​of the current waveform and the target waveform, a pH value difference between the current waveform and the target waveform, a Pcmax value, a difference between the Pcmax values ​​of the current waveform and the target waveform, a PAPR, an MPR value, a difference between the PAPR of the current waveform and the target waveform, and a difference between the MPR values ​​of the current waveform and the target waveform.

[0205] It is understandable that the power headroom information situations exemplified in the above embodiments are not all situations, and this disclosure does not list them all.

[0206] In some embodiments, before the terminal sends a PHR, after accessing the network device via the first waveform, and before the terminal sends a battery headroom report, the method further includes: the terminal determining that a first condition is satisfied, the first condition being related to the power of the currently used waveform, or the first condition being related to the power of the second waveform. The first waveform is, for example, the current waveform, and the second waveform is, for example, the target waveform.

[0207] In some embodiments, the terminal satisfies a first condition, triggering measurement and / or transmission of a PHR. The first condition may, for example, be that a power parameter value corresponding to a PUSHC transmission or PUSCH transmission opportunity satisfies a power parameter threshold; or, the first condition may, for example, be that a PHR prohibit timer expires or times out; or, the first condition may, for example, be that a PHR power factor change parameter (phr-tx-power factor change) is less than a path loss.

[0208] In some embodiments, the measurement and / or transmission of the PHR may be triggered based on a power parameter value corresponding to a PUSHC transmission or a PUSCH transmission opportunity meeting a power parameter threshold.

[0209] Optionally, when the power parameter value of a single PUSCH transmission meets a power parameter threshold, measurement and / or sending of a PHR is triggered.

[0210] The single PUSCH transmission may be the first PUSCH transmission or the most recent PUSCH transmission.

[0211] Optionally, when a proportion of power parameter values ​​in multiple PUSCH transmissions that meet a power parameter threshold value is greater than a proportion threshold, measurement and / or transmission of a PHR is triggered. For example, the proportion threshold may be set to 50%. Assuming that power parameter values ​​corresponding to 6 PUSCH transmissions in 10 PUSCH transmissions meet the power threshold value, that is, the proportion is 60%, then if the proportion of power parameter values ​​in multiple PUSCH transmissions that meet the power parameter threshold value is greater than the proportion threshold, measurement and / or transmission of a PHR may be triggered.

[0212] In some cases, when the proportion of power parameter values ​​that meet the power parameter threshold value in multiple PUSCH transmissions is greater than the proportion threshold, the measurement and / or transmission of the PHR is triggered. For example, the proportion threshold can be set to 50%. Assuming that the power parameter values ​​corresponding to 5 out of 10 PUSCH transmissions meet the power threshold value, that is, the proportion is 50%, then the proportion of power parameter values ​​that meet the power parameter threshold value in multiple PUSCH transmissions is equal to the proportion threshold, which can trigger the measurement and / or transmission of the PHR.

[0213] Of course, the above-mentioned scenarios and specific values ​​of the ratio thresholds are for illustration only and are not limited in this disclosure.

[0214] Optionally, if the number of transmissions in which the power parameter value satisfies the power parameter threshold value among multiple PUSCH transmissions is greater than a number threshold, measurement and / or transmission of the PHR is triggered. For example, the number threshold may be 5 times. Assuming that the power parameter value corresponding to 5 PUSCH transmissions satisfies the power threshold value, if the power parameter value corresponding to the sixth PUSCH transmission satisfies the power threshold value, then the number of transmissions in which the power parameter value satisfies the power parameter threshold value among the multiple PUSCH transmissions is greater than the number threshold, measurement and / or transmission of the PHR may be triggered.

[0215] In some cases, if the number of transmissions in which the power parameter value meets the power parameter threshold value during multiple PUSCH transmissions is equal to the number threshold, the measurement and / or transmission of the PHR is triggered. For example, the number threshold may be 5. Assuming that the power parameter value corresponding to 4 PUSCH transmissions meets the power threshold value, if the power parameter value corresponding to the 5th PUSCH transmission meets the power threshold value, then the number of transmissions in which the power parameter value meets the power parameter threshold value during multiple PUSCH transmissions is equal to the number threshold, the measurement and / or transmission of the PHR may be triggered.

[0216] Optionally, the power parameter value of a single PUSCH transmission opportunity satisfies a power parameter threshold value. The single PUSCH transmission opportunity may be the first PUSCH transmission opportunity or the most recent PUSCH transmission opportunity.

[0217] Optionally, a proportion of power parameter values ​​satisfying a power parameter threshold value in a plurality of PUSCH transmission opportunities is greater than or equal to a proportion threshold.

[0218] Optionally, the number of transmission opportunities in the multiple PUSCH transmission opportunities where the power parameter value meets the power parameter threshold is greater than or equal to a number threshold.

[0219] The present disclosure is based on the power parameter value of a single or multiple PUSCH transmission opportunity meeting the power parameter threshold value, and triggering the specific method of measuring and / or sending the PHR. The specific method of measuring and / or sending the PHR based on the power parameter value of a single or multiple PUSCH transmissions meeting the power parameter threshold value may be referred to above. The present disclosure will not repeat it here.

[0220] In some embodiments, the expiration or timeout of the PHR prohibit timer may trigger the measurement and / or reporting of the PHR, wherein the PHR prohibit timer may be a phr-prohibittimer. For example, within the period of the PHR prohibit timer, the measurement and / or transmission of the PHR may be triggered based on the power parameter value of a single or multiple PUSCH transmissions meeting the power parameter threshold value; when the PHR prohibit timer expires, the measurement and / or reporting of the PHR is actively triggered. For another example, if within the period of the PHR prohibit timer, the power parameter value based on a single or multiple PUSCH transmissions meets the power parameter threshold value, the measurement and / or transmission of the PHR is not triggered. Then, when the PHR prohibit timer expires, the measurement and / or reporting of the PHR is actively triggered, and the terminal again determines whether to trigger the measurement and / or transmission of the PHR based on the power parameter value of a single or multiple PUSCH transmissions after this PHR reporting meeting the power parameter threshold value.

[0221] In some embodiments, when the PHR power factor change parameter is less than the path loss, the measurement and / or reporting of the PHR can be triggered. For example, when the phr-tx-power factor change is not less than the path loss, the measurement and / or sending of the PHR can be triggered based on the power parameter value of a single or multiple PUSCH transmissions meeting the power parameter threshold value; when the phr-tx-power factor change is less than the path loss, the measurement and / or reporting of the PHR is actively triggered. For another example, when the phr-tx-power factor change is not less than the path loss, the measurement and / or sending of the PHR is not triggered based on the power parameter value of a single or multiple PUSCH transmissions meeting the power parameter threshold value. Then, when the phr-tx-power factor change is less than the path loss, the measurement and / or reporting of the PHR is actively triggered, and the terminal again determines whether to trigger the measurement and / or sending of the PHR based on the power parameter value of a single or multiple PUSCH transmissions after this PHR reporting meeting the power parameter threshold value.

[0222] In some embodiments, when the PHR power factor change parameter is not less than the path loss, the measurement and / or reporting of the PHR may be triggered. For example, when the phr-tx-power factor change parameter is not less than the path loss, the measurement and / or transmission of the PHR may be triggered when the power parameter value of multiple PUSCH transmissions meets the power parameter threshold value.

[0223] In some embodiments, the relationship between the size of the PHR power factor change parameter and the path loss affects the proportional threshold or the number threshold. For example, when the PHR power factor change parameter (phr-tx-power factor change) is less than the path loss, the number threshold can be 5 times. Assuming that the power parameter value corresponding to 5 PUSCH transmissions has met the power threshold value, at this time, if the power parameter value corresponding to the 6th PUSCH transmission meets the power threshold value, then the number of transmissions in which the power parameter value meets the power parameter threshold value in multiple PUSCH transmissions is greater than the number threshold, which can trigger the measurement and / or transmission of the PHR. When the PHR power factor change parameter (phr-tx-power factor change) is not less than the path loss, the number threshold becomes 10 times.

[0224] In some embodiments, multiple PUSCH transmissions include multiple PUSCH transmissions based on scheduling, or include multiple PUSCH transmissions based on scheduling and based on non-scheduling, or include multiple PUSCH transmissions based on scheduling and based on non-scheduling with the same waveform configuration. For example, when multiple PUSCH transmissions include multiple PUSCH transmissions based on scheduling, the measurement and transmission of the PHR of the multiple PUSCH transmissions based on scheduling can be triggered to facilitate the network device to schedule the waveform switching used by the scheduled PUSCH transmission. For another example, when multiple PUSCH transmissions include multiple PUSCH transmissions based on scheduling and based on non-scheduling, the measurement and transmission of the PHR based on scheduling and based on non-scheduling can be triggered to facilitate the network device to schedule the waveform switching used by the scheduled PUSCH transmission. That is, the waveform switching used by the scheduled PUSCH transmission can be scheduled with reference to the PHR of the non-scheduling PUSCH transmission. For another example, when multiple PUSCH transmissions include multiple scheduled and non-scheduled PUSCH transmissions with the same waveform configuration, the measurement and transmission of the scheduled and non-scheduled PHRs can be triggered, and the waveform switching used by the scheduled PUSCH transmission can be scheduled. The same waveform can be, for example, a target waveform. When the power parameters of the scheduled and non-scheduled PUSCH transmissions configured with the target waveform meet the power parameter threshold, the measurement and transmission of the scheduled and non-scheduled PHRs can be triggered. That is, it can be considered that the target waveform meets the conditions for being used, and the currently used waveform can be dynamically switched to the target waveform.

[0225] In some embodiments, a single PUSCH transmission or multiple PUSCH transmissions may be PUSCH transmissions based on timeline requirements.

[0226] In some embodiments, a single PUSCH transmission opportunity or multiple PUSCH transmission opportunities may be PUSCH transmission opportunities based on timeline requirements.

[0227] In some embodiments, the single PUSCH transmission or multiple PUSCH transmissions include: a single or multiple PUSCH transmissions after the most recent PHR transmission. For example, the measurement and / or transmission of the PHR may be triggered based on a power parameter of the single or multiple PUSCH transmissions after the most recent PHR transmission meeting a power parameter threshold.

[0228] In some embodiments, the single PUSCH transmission opportunity or multiple PUSCH transmission opportunities include the single or multiple PUSCH transmission opportunities after the most recent PHR was sent. For example, the measurement and / or sending of the PHR may be triggered based on a power parameter of the single PUSCH transmission opportunity or multiple PUSCH transmission opportunities after the most recent PHR was sent meeting a power parameter threshold.

[0229] In some embodiments, satisfying the power parameter threshold includes a pH value being greater than a first pH value threshold.

[0230] In some embodiments, satisfying the power parameter threshold includes a pH value being less than or equal to a second pH threshold. For example, when the pH value of the current waveform is less than or equal to the second pH threshold, the power parameter threshold may be considered satisfied, triggering measurement and / or transmission of the PHR. For another example, when the pH value of the target waveform is greater than the first pH threshold, the power parameter threshold may be considered satisfied, triggering measurement and / or transmission of the PHR.

[0231] It is understood that the above examples are merely illustrative and are not limiting in this disclosure.

[0232] In some embodiments, satisfying the power parameter threshold includes that the MPR values ​​corresponding to the different waveforms are higher than the MPR threshold.

[0233] In some embodiments, satisfying the power parameter threshold includes a difference between MPR values ​​corresponding to different waveforms being higher than a difference threshold.

[0234] In some embodiments, satisfying the power parameter threshold includes the Pcmax value being greater than a first Pcmax value threshold.

[0235] In some embodiments, satisfying the power parameter threshold includes the Pcmax value being less than or equal to a second Pcmax value threshold.

[0236] In some embodiments, the power parameter threshold value may be predefined or preconfigured by the network device.

[0237] In some embodiments, the number of transmissions based on the pH of the current waveform or the target waveform being lower or higher than a threshold value is greater than a threshold N. N is a positive integer and may be predefined or configured by the network device.

[0238] In some embodiments, the number of transmission opportunities based on the pH of the current waveform or the target waveform being lower or higher than a threshold value is greater than a threshold N.

[0239] In some embodiments, the ratio of the number of transmissions in which the pH of the current waveform or the target waveform is lower than or higher than a threshold value is higher than a certain ratio.

[0240] In some embodiments, the ratio of the number of transmission opportunities based on the pH of the current waveform or the target waveform being lower than or higher than a threshold value is higher than a certain ratio.

[0241] In some embodiments, the MPR corresponding to different waveforms of the PUSCH transmission corresponding to the PUSCH transmission is calculated based on the PUSCH transmission, or the difference between the MPRs is higher than a threshold value.

[0242] In some embodiments, the PUSCH transmission timing corresponding to the PUSCH transmission timing is calculated based on the PUSCH transmission timing, and the MPR corresponding to different waveforms appears or the difference between the MPRs is higher than a threshold.

[0243] In some embodiments, the MPR value is obtained by looking up a table or actually calculating and performing statistics.

[0244] In some embodiments, the number of PUSCH transmissions for which the MPRs based on different waveforms of different PUSCH transmissions or the difference between the MPRs is greater than a threshold is greater than N.

[0245] In some embodiments, the number of PUSCH transmission opportunities for which the MPRs based on different waveforms or the difference between the MPRs of different PUSCH transmission opportunities is greater than a threshold is greater than N.

[0246] In some embodiments, the ratio of the number of PUSCH transmissions in which the MPRs based on different waveforms of different PUSCH transmissions or the difference between the MPRs is higher than a threshold is higher than a certain ratio.

[0247] In some embodiments, the ratio of the number of PUSCH transmission opportunities for which the MPRs based on different waveforms or the difference between the MPRs calculated for different PUSCH transmission opportunities is higher than a threshold is higher than a certain ratio.

[0248] In some embodiments, the Pcmax calculated based on different PUSCH transmissions for corresponding different waveforms or the difference between the Pcmaxes for corresponding PUSCH transmissions is lower than or higher than a threshold value.

[0249] In some embodiments, the Pcmax of different waveforms corresponding to the corresponding PUSCH transmission opportunities calculated based on different PUSCH transmission opportunities or the difference between the Pcmax values ​​is lower than or higher than a threshold value.

[0250] In some embodiments, the number of PUSCH transmissions for which the Pcmax based on different waveforms or the difference between the Pcmax values ​​is lower than or higher than a threshold is greater than N.

[0251] In some embodiments, the number of PUSCH transmission opportunities for which the Pcmax values ​​based on different waveforms or the difference between the Pcmax values ​​is lower than or higher than a threshold value is greater than N.

[0252] In some embodiments, the ratio of the number of PUSCH transmissions in which the Pcmax based on different waveforms or the difference between the Pcmax values ​​is lower than or higher than a threshold is greater than a certain ratio.

[0253] In some embodiments, the ratio of the number of PUSCH transmission opportunities for which the Pcmax based on different waveforms or the difference between the Pcmax values ​​is lower than or higher than a threshold is higher than a certain ratio.

[0254] In some embodiments, the network device 102 schedules dynamic switching of uplink transmission waveforms based on the PHR.

[0255] In some embodiments, the network device schedules dynamic switching of uplink transmission waveforms based on the power headroom information in the PHR.

[0256] The PHR can be the PHR of the target waveform, or the PHR of the current waveform and the target waveform. For example, based on the power information in the PHR, the network device can schedule the terminal to switch the waveform used to send PUSCH from the current waveform to the target waveform, or schedule the terminal to continue using the current waveform when sending PUSCH.

[0257] Step S2104 , the network device 102 sends first information to the terminal 101 .

[0258] In some embodiments, the terminal 101 receives first information sent by a network device, wherein the first information is generated based on the PHR and is used to schedule a waveform used by the terminal to send a PUSCH.

[0259] In some embodiments, the first information may be, for example, a DCI, or a medium access control control element (MAC CE), or an RRC reconfiguration message.

[0260] For example, the first information is used to schedule the waveform used by the terminal to send the PUSCH to be the second waveform, where the second waveform is used to represent the waveform after the waveform is switched.

[0261] In some embodiments, the terminal determines to use the second waveform for sending the PUSCH.

[0262] In some embodiments, the first waveform and the second waveform may be the same, that is, the first information is used to instruct the terminal to continue to use the first waveform to send the PUSCH. In some embodiments, the first waveform and the second waveform may be different, that is, the first information is used to instruct the terminal to switch the waveform of the PUSCH sent from the first waveform to the second waveform.

[0263] The communication method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2104. For example, step S2103 may be implemented as an independent embodiment. Steps S2103 and S2104 may be implemented as independent embodiments.

[0264] In some embodiments, steps S2101 and S2102 may be executed in an interchanged order or simultaneously.

[0265] In some embodiments, steps S2101, S2102, and S2104 are optional and may be omitted or replaced in different embodiments.

[0266] In some embodiments, step S2101 and step S2102 are optional and can be omitted or replaced in different embodiments.

[0267] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0268] FIG3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3a, the present disclosure embodiment relates to a communication method, which is executed by terminal 101 and includes:

[0269] Step S3101, obtain system information.

[0270] The optional implementation of step S3101 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.

[0271] In some embodiments, the terminal receives system information sent by a network device, but is not limited thereto and may also receive system information sent by other entities.

[0272] In some embodiments, the terminal 101 receives the system information sent by the network device 102, but is not limited thereto and may also receive the system information sent by other entities.

[0273] In some embodiments, terminal 101 obtains system information specified by the protocol.

[0274] In some embodiments, terminal 101 obtains system information from upper layer(s).

[0275] In some embodiments, terminal 101 performs processing to obtain system information.

[0276] In some embodiments, step S3101 is omitted, and the terminal 101 autonomously implements the function indicated by the system information, or the above function is default or acquiescent.

[0277] Step S3102, obtaining second information.

[0278] The optional implementation of step S3102 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.

[0279] In some embodiments, the terminal receives the second information sent by the network device, but is not limited thereto, and may also receive the second information sent by other entities.

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

[0281] In some embodiments, terminal 101 obtains second information specified by the protocol.

[0282] In some embodiments, terminal 101 obtains the second information from upper layer(s).

[0283] In some embodiments, terminal 101 performs processing to obtain the second information.

[0284] In some embodiments, step S3102 is omitted, and the terminal 101 autonomously implements the function indicated by the second information, or the above function is default or by default.

[0285] Step S3103 sends PHR.

[0286] The optional implementation of step S3103 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.

[0287] In some embodiments, the terminal 101 sends the PHR to the network device 102, but is not limited thereto and the second information may also be sent to other entities.

[0288] Step S3104, obtaining first information.

[0289] The optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0290] In some embodiments, the terminal receives the first information sent by the network device, but is not limited thereto and may also receive the first information sent by other entities.

[0291] In some embodiments, the terminal 101 receives the first information sent by the network device 102, but is not limited thereto and may also receive the first information sent by other entities.

[0292] In some embodiments, terminal 101 obtains first information specified by a protocol.

[0293] In some embodiments, terminal 101 obtains the first information from upper layer(s).

[0294] In some embodiments, the terminal 101 performs processing to obtain the first information.

[0295] In some embodiments, step S3104 is omitted, and the terminal 101 autonomously implements the function indicated by the first information, or the above function is default or by default.

[0296] The communication method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3104. For example, step S3103 may be implemented as an independent embodiment. Steps S3103 and S3104 may be implemented as independent embodiments.

[0297] In some embodiments, steps S3101 and S3102 may be executed in an interchanged order or simultaneously.

[0298] In some embodiments, steps S3101, S3102, and S3104 are optional and may be omitted or replaced in different embodiments.

[0299] In some embodiments, step S3101 and step S3102 are optional and can be omitted or replaced in different embodiments.

[0300] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0301] FIG3b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3b, the embodiment of the present disclosure relates to a communication method, which is executed by terminal 101 and includes:

[0302] Step S3201, send PHR.

[0303] The optional implementation of step S3201 can refer to the optional implementation of step S2101 in Figure 2, step S3101 in Figure 3a, and other related parts in the embodiments involved in Figures 2 and 3a, which will not be repeated here.

[0304] In some embodiments, the terminal 101 sends the PHR to the network device 102, but is not limited thereto and may also send the PHR to other entities.

[0305] Step S3202, obtaining first information.

[0306] The optional implementation of step S3202 can refer to step S2104 in FIG. 2 , the optional implementation of step S3104 in FIG. 3 a , and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

[0307] In some embodiments, the terminal receives the first information sent by the network device, but is not limited thereto and may also receive the first information sent by other entities.

[0308] In some embodiments, the terminal 101 receives the first information sent by the network device 102, but is not limited thereto and may also receive the first information sent by other entities.

[0309] In some embodiments, terminal 101 obtains first information specified by a protocol.

[0310] In some embodiments, terminal 101 obtains the first information from upper layer(s).

[0311] In some embodiments, the terminal 101 performs processing to obtain the first information.

[0312] In some embodiments, step S3202 is omitted, and the terminal 101 autonomously implements the function indicated by the first information, or the above function is default or by default.

[0313] FIG3c is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3c, the embodiment of the present disclosure relates to a communication method, which is executed by terminal 101 and includes:

[0314] Step S3301, send PHR.

[0315] The optional implementation of step S3301 can refer to the optional implementation of step S2101 in Figure 2, step S3101 in Figure 3a, step S3201 in Figure 3b, and other related parts in the embodiments involved in Figures 2, 3a, and 3b, which will not be repeated here.

[0316] In some embodiments, the terminal 101 sends the PHR to the network device 102, but is not limited thereto and may also send the PHR to other entities.

[0317] In some embodiments, the power headroom information includes at least one of the following: peak-to-average power ratio (PAPR); the difference between PAPR values ​​corresponding to different waveforms; maximum power backoff value (MPR); the difference between MPR values ​​corresponding to different waveforms; power headroom value (PH); the difference between PH values ​​corresponding to different waveforms; maximum transmission power (Pcmax); the difference between Pcmax values ​​corresponding to different waveforms.

[0318] In some embodiments, at least one of the following is met, triggering the measurement and / or sending of PHR: the power parameter value of a single PUSCH transmission meets the power parameter threshold value; the proportion of power parameter values ​​that meet the power parameter threshold value in multiple PUSCH transmissions is greater than a proportion threshold; the number of transmissions in which the power parameter value meets the power parameter threshold value in multiple PUSCH transmissions is greater than a number threshold; the power parameter value of a single PUSCH transmission opportunity meets the power parameter threshold value; the proportion of power parameter values ​​that meet the power parameter threshold value in multiple PUSCH transmission opportunities is greater than a proportion threshold; the number of transmission opportunities in which the power parameter value meets the power parameter threshold value in multiple PUSCH transmission opportunities is greater than a number threshold.

[0319] In some embodiments, the power parameter value includes at least one of the following: pH values ​​corresponding to different waveforms; differences between pH values ​​corresponding to different waveforms; MPR values ​​corresponding to different waveforms; differences between MPR values ​​corresponding to different waveforms; Pcmax values ​​corresponding to different waveform configurations; differences between Pcmax values ​​corresponding to different waveform configurations; PAPR values ​​corresponding to different waveforms; and differences between PAPR values ​​corresponding to different waveforms.

[0320] In some embodiments, satisfying the power parameter threshold includes at least one of the following: the PH value is greater than a first PH threshold value; the PH value is less than or equal to a second PH threshold value; the MPR values ​​corresponding to different waveforms are higher than the MPR threshold value; the difference between the MPR values ​​corresponding to different waveforms is higher than the difference threshold value; the Pcmax value is greater than a first Pcmax value threshold value; the Pcmax value is less than or equal to a second Pcmax value threshold value.

[0321] In some embodiments, a single PUSCH transmission or multiple PUSCH transmissions include: a single or multiple PUSCH transmissions after the most recent PHR transmission; a single PUSCH transmission opportunity or multiple PUSCH transmission opportunities include a single or multiple PUSCH transmission opportunities after the most recent PHR transmission.

[0322] In some embodiments, multiple PUSCH transmissions or multiple PUSCH transmission opportunities include: multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling; multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling and based on non-scheduling; multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling and based on non-scheduling with the same waveform configuration.

[0323] In some embodiments, a single PUSCH transmission or a single PUSCH transmission opportunity includes: a first PUSCH transmission or a first PUSCH transmission opportunity; a most recent PUSCH transmission or a most recent PUSCH transmission opportunity.

[0324] In some embodiments, the power headroom information includes power headroom information of a target waveform; or, the power headroom information includes power headroom information of a current waveform and a target waveform.

[0325] In some embodiments, first information is sent, where the first information is determined based on the PHR, and the first information is used to schedule a waveform used to send a PUSCH.

[0326] FIG4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4a, the embodiment of the present disclosure relates to a communication method, and the method includes:

[0327] Step S4101, sending system information.

[0328] The optional implementation of step S4101 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.

[0329] In some embodiments, the terminal 101 sends the system information to the network device 102, but is not limited thereto and the system information may also be sent to other entities.

[0330] Step S4102, sending the second information.

[0331] The optional implementation of step S4102 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.

[0332] In some embodiments, the terminal 101 sends the second information to the network device 102, but is not limited thereto and the second information may also be sent to other entities.

[0333] Step S4103, obtain PHR.

[0334] The optional implementation of step S4103 can refer to the optional implementation of step S2104 in Figure 2, step S3103 in Figure 3a, and other related parts in the embodiments involved in Figures 2 and 3a, which will not be repeated here.

[0335] In some embodiments, the network device receives a PHR sent by a terminal, but is not limited thereto and may also receive a PHR sent by other entities.

[0336] In some embodiments, the network device 102 receives the PHR sent by the terminal 101, but is not limited thereto and may also receive the PHR sent by other entities.

[0337] In some embodiments, network device 102 obtains the PHR specified by the protocol.

[0338] In some embodiments, the network device 102 obtains the PHR from upper layer(s).

[0339] In some embodiments, network device 102 performs processing to obtain the PHR.

[0340] In some embodiments, step S4103 is omitted, and the network device 102 autonomously implements the function indicated by the PHR, or the above function is default or by default.

[0341] Step S4104, sending the first information.

[0342] The optional implementation of step S4104 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0343] In some embodiments, the terminal 101 sends the first information to the network device 102, but is not limited thereto and the first information may also be sent to other entities.

[0344] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4101 to S4104. For example, step S4104 may be implemented as an independent embodiment. Steps S4103 and S4104 may be implemented as independent embodiments.

[0345] In some embodiments, steps S4102 and S4103 may be executed in an interchanged order or simultaneously.

[0346] In some embodiments, steps S4101, S4102, and S4104 are optional and may be omitted or replaced in different embodiments.

[0347] In some embodiments, step S4101 and step S4102 are optional and can be omitted or replaced in different embodiments.

[0348] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0349] FIG4b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4b, the embodiment of the present disclosure relates to a communication method, and the method includes:

[0350] Step S4201, obtain PHR.

[0351] The optional implementation of step S4201 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.

[0352] In some embodiments, the network device receives a PHR sent by a terminal, but is not limited thereto and may also receive a PHR sent by other entities.

[0353] In some embodiments, the network device 102 receives the PHR sent by the terminal 101, but is not limited thereto and may also receive the PHR sent by other entities.

[0354] In some embodiments, network device 102 obtains the PHR specified by the protocol.

[0355] In some embodiments, the network device 102 obtains the PHR from upper layer(s).

[0356] In some embodiments, network device 102 performs processing to obtain the PHR.

[0357] In some embodiments, step S4101 is omitted, and the network device 102 autonomously implements the function indicated by the PHR, or the above function is default or by default.

[0358] Step S4202, sending the first information.

[0359] The optional implementation of step S4202 can refer to the optional implementation of step S2104 in Figure 2, step S4104 in Figure 4a, and other related parts in the embodiments involved in Figures 2 and 4a, which will not be repeated here.

[0360] In some embodiments, the terminal 101 sends the first information to the network device 102, but is not limited thereto and the first information may also be sent to other entities.

[0361] FIG4c is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4b, the embodiment of the present disclosure relates to a communication method, which includes:

[0362] Step S4301, obtain PHR.

[0363] The optional implementation of step S4301 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.

[0364] In some embodiments, the network device receives a PHR sent by a terminal, but is not limited thereto and may also receive a PHR sent by other entities.

[0365] In some embodiments, the network device 102 receives the PHR sent by the terminal 101, but is not limited thereto and may also receive the PHR sent by other entities.

[0366] In some embodiments, network device 102 obtains the PHR specified by the protocol.

[0367] In some embodiments, the network device 102 obtains the PHR from upper layer(s).

[0368] In some embodiments, network device 102 performs processing to obtain the PHR.

[0369] In some embodiments, step S4101 is omitted, and the network device 102 autonomously implements the function indicated by the PHR, or the above function is default or by default.

[0370] In some embodiments, first information is sent, where the first information is determined based on the PHR, and the first information is used to schedule a waveform used to send a PUSCH.

[0371] Figure 5a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 5a, the embodiment of the present disclosure relates to a communication method, which includes:

[0372] In step S5101, the terminal 101 sends a PHR, where the PHR includes power headroom information of a physical uplink shared channel PUSCH sent by the terminal. The power headroom information is used for waveform switching used by the PUSCH.

[0373] Optional implementations of step S5101 may refer to S2101 in FIG. 2 , step S3101 in FIG. 3 a , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 a , which will not be described in detail here.

[0374] In some embodiments, the above method may include the method of the above embodiments related to the communication system 100, the terminal 101, the network device 102, etc., which will not be repeated here.

[0375] In step S5102, the network device 102 receives a PHR.

[0376] The optional implementation of step S5102 can refer to S2101 in Figure 2, the optional implementation of step S4101 in Figure 4a, and other related parts in the embodiments involved in Figures 2 and 4a, which will not be repeated here.

[0377] In some embodiments, the above method may include the method of the above embodiments related to the communication system 100, the terminal 101, the network device 102, etc., which will not be repeated here.

[0378] FIG5b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5b, the embodiment of the present disclosure relates to a communication method, and the method includes:

[0379] Step S5201: The network device sends system information.

[0380] Optional implementations of step S5201 can be found in S2102 of FIG. 2 , step S3102 of FIG. 3 a , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 a , which will not be described in detail here.

[0381] In some embodiments, the above method may include the method of the above embodiments related to the communication system 100, the terminal 101, the network device 102, etc., which will not be repeated here.

[0382] Step S5202: The terminal receives system information and accesses the network device through a random access process. During the random access process, the first waveform is used as the waveform of message 3.

[0383] Optional implementations of step S5202 may refer to step S2102 in FIG. 2 , step S3102 in FIG. 3 a , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 a , which will not be described in detail here.

[0384] In some embodiments, the above method may include the method of the above embodiments related to the communication system 100, the terminal 101, the network device 102, etc., which will not be repeated here.

[0385] Step S5203: After the terminal accesses the network device, a PHR is sent.

[0386] Optional implementations of step S5203 may refer to S2101 in FIG. 2 , step S3101 in FIG. 3 a , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 a , which will not be described in detail here.

[0387] In some embodiments, the above method may include the method of the above embodiments related to the communication system 100, the terminal 101, the network device 102, etc., which will not be repeated here.

[0388] In step S5204, after receiving the PHR, the network device sends first information, where the first information is used to schedule the terminal to use the second waveform to send the PUSCH.

[0389] Optional implementations of step S5204 may refer to step S2104 in FIG. 2 , step S3104 in FIG. 3 a , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 a , which will not be described in detail here.

[0390] In some embodiments, the above method may include the method of the above embodiments related to the communication system 100, the terminal 101, the network device 102, etc., which will not be repeated here.

[0391] The present disclosure also provides a communication method as follows:

[0392] In some embodiments, the terminal enhances reporting of the PAPR or PAPR gap value ΔPAPR or MPR information of CP-OFDM and DFT-s-OFDM on the PUSCH based on the PHR.

[0393] In some embodiments, ΔPAPR is used to represent the difference between PAPRs of different waveforms.

[0394] In some embodiments, new PHR reporting triggering conditions are introduced.

[0395] In some embodiments, based on multiple PUSCH transmissions or multiple PUSCH transmission opportunities after the most recent PHR reporting point, the power information of different waveforms corresponding to the current transmission configuration is reported by looking up a table or calculating the power information. At the same time as reporting Pcmax and PH, PAPR or MPR can be selected for reporting. The specific triggering conditions for adding PHR are as follows:

[0396] 1) The transmission based on the PH of the current waveform or target waveform being lower or higher than a threshold value or the number of transmission opportunities being greater than a predefined or network-configured threshold N or the ratio being higher than a certain ratio.

[0397] Compared with the PH threshold trigger condition that passes through once directly, the effectiveness of triggering and reporting can be increased, and the operation of reporting or triggering waveform switching can be avoided too frequently, thereby reducing the actual system gain.

[0398] 2) Based on the transmission or transmission timing, the corresponding transmission or transmission timing corresponding to different waveforms has an MPR or ΔMPR higher than a threshold value.

[0399] In some embodiments, ΔMPR is used to represent the difference between MPRs of different waveforms.

[0400] In some embodiments, the terminal obtains the MPR by looking up a table or actually calculating and counting;

[0401] 3) Calculating MPR or ΔMPR based on different waveforms for different transmissions or transmission opportunities. The number of transmissions or transmission opportunities that are higher than a threshold is greater than a predefined or network-configured threshold N or is higher than a certain ratio.

[0402] 4) The Pcmax or ΔPcmax of the corresponding waveforms at the corresponding transmission or transmission timing calculated based on different transmissions or transmission timings is lower than or higher than a threshold value.

[0403] 5) Calculating the number of transmissions or transmission opportunities where Pcmax or ΔPcmax based on different waveforms for different transmissions or transmission opportunities is lower than or higher than a threshold value and is greater than a predefined or network-configured threshold N or is higher than a certain proportion;

[0404] In some embodiments, the PUSCH transmission type defines one of the following:

[0405] 1) Only consider the PUSCH based on scheduling;

[0406] 2) Both scheduled and unscheduled PUSCHs with the same waveform configuration are included in statistics A Alt.1, Alt.3, or Alt.5;

[0407] In some embodiments, PHR reporting content: 1 (corresponding to the target waveform) or 2 PHRs (corresponding to the current waveform and the target waveform), based on the PUSCH transmission required by the timeline or the current waveform or target waveform corresponding to the PUSCH transmission timing, Pcmax and PH are reported separately or simultaneously.

[0408] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0409] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0410] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0411] Figure 6a is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in Figure 6a, terminal 6100 may include a transceiver module 6101. In some embodiments, the transceiver module is used to send a PHR, which includes power headroom information for transmitting a physical uplink shared channel (PUSCH) from the terminal. The power headroom information is used to switch the waveform used by the PUSCH. Optionally, the transceiver module is used to perform the communication steps S2101-S2104, such as sending and / or receiving, performed by terminal 101 in any of the above methods, and will not be repeated here.

[0412] Figure 6b is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure. As shown in Figure 6b, the network device 6200 may include: a transceiver module 6201. The above-mentioned transceiver module 6201 is used to receive PHR, which includes power margin information of the physical uplink shared channel PUSCH sent by the terminal, and the power margin information is used for waveform switching used by PUSCH. Optionally, the above-mentioned transceiver module is used to execute the communication steps S2101-S2104 such as sending and / or receiving performed by the terminal 101 in any of the above methods, which are not repeated here. In some embodiments, 6200 may include a processing module 6202. The above-mentioned processing module 6202 is used to schedule dynamic switching of uplink transmission waveforms based on PHR.

[0413] 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.

[0414] 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.

[0415] Figure 7a is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device, a terminal, a chip, a chip system, or a processor that supports a network device in implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal in implementing any of the above methods. Optionally, the network device can be an access network device, a core network device, or the like. Optionally, the terminal can be a user equipment, or the like. Communication device 7100 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.

[0416] As shown in Figure 7a, communication device 7100 includes one or more processors 7101. Processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, while the central processing unit can be used to control the communication device, execute programs, and process program data. Communication device 7100 is used to perform any of the above methods. Optionally, the communication device can be a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.

[0417] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0418] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceiver 7103 performs the communication step S2101 such as sending and / or receiving in the above method, and the processor 7101 performs other steps.

[0419] 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, and transceiver circuit 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.

[0420] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102. The interface circuit 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0421] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be 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.

[0422] FIG7 b is a schematic diagram of the structure of a chip 7200 according to an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 7200 shown in FIG7 b , but the present disclosure is not limited thereto.

[0423] The chip 7200 includes one or more processors 7201 , and the chip 7200 is configured to execute any of the above methods.

[0424] In some embodiments, the chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to the memory 7203. The interface circuit 7202 can be used to receive signals from the memory 7203 or other devices, and can be used to send signals to the memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in the memory 7203 and send the instructions to the processor 7201.

[0425] In some embodiments, the interface circuit 7202 executes the communication step S2101 of sending and / or receiving in the above method, and the processor 7201 executes other steps.

[0426] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0427] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0428] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes 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.

[0429] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0430] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that: The method comprises: A power headroom report is sent, where the power headroom report includes power headroom information, where the power headroom information is used for waveform switching on a physical uplink shared channel PUSCH.

2. The method according to claim 1, characterized in that The power headroom information includes at least one of the following: Peak to Average Power Ratio PAPR; The difference between the PAPRs corresponding to different waveforms; Maximum power fallback value MPR value; The difference between the MPR values ​​corresponding to different waveforms; Power margin pH value; The difference between the pH values ​​corresponding to different waveforms; Maximum transmission power Pcmax value; The difference between the Pcmax values ​​corresponding to different waveforms.

3. The method according to any one of claims 1 to 2, characterized in that: The power parameter value of a single PUSCH transmission meets the power parameter threshold value; Or, the proportion of power parameter values ​​satisfying the power parameter threshold value in multiple PUSCH transmissions is greater than the proportion threshold; Or, the number of transmissions in which the power parameter value satisfies the power parameter threshold value among multiple PUSCH transmissions is greater than the number threshold; Or, the power parameter value of a single PUSCH transmission opportunity satisfies the power parameter threshold value; Or, the proportion of power parameter values ​​satisfying the power parameter threshold value in multiple PUSCH transmission opportunities is greater than the proportion threshold; Or, among the multiple PUSCH transmission opportunities, the number of transmission opportunities whose power parameter values ​​satisfy the power parameter threshold value is greater than the number threshold.

4. The method according to claim 3, characterized in that The power parameter value includes at least one of the following: PH values ​​corresponding to different waveforms; The difference in pH values ​​corresponding to different waveforms; MPR values ​​corresponding to different waveforms; The difference between the MPR values ​​corresponding to different waveforms; Pcmax corresponding to different waveform configurations; The difference between Pcmax corresponding to different waveform configurations; PAPR values ​​corresponding to different waveforms; The difference between the PAPRs corresponding to different waveforms.

5. The method according to claim 3 or 4, characterized in that: The power parameter threshold value is met, including at least one of the following: The pH value is greater than the first pH threshold value; The PH value is less than or equal to the second PH threshold value; The MPR values ​​corresponding to different waveforms are higher than the MPR threshold value; The difference between the MPR values ​​corresponding to different waveforms is higher than the difference threshold; The Pcmax value is greater than the first Pcmax value threshold; The Pcmax value is less than or equal to the second Pcmax value threshold.

6. The method according to any one of claims 3 to 5, characterized in that: The single PUSCH transmission or the multiple PUSCH transmissions include: a single or multiple PUSCH transmissions after the most recent power headroom report is sent; The single PUSCH transmission opportunity or the multiple PUSCH transmission opportunities include a single or multiple PUSCH transmission opportunities after the most recent power headroom report is sent.

7. The method according to any one of claims 3 to 6, characterized in that: The multiple PUSCH transmissions or the multiple PUSCH transmission opportunities include: Multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling; Multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling and scheduling-free; Multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling and scheduling-free for the same waveform configuration.

8. The method according to any one of claims 3 to 6, characterized in that: The single PUSCH transmission or single PUSCH transmission opportunity includes: First PUSCH transmission or first PUSCH transmission opportunity; The most recent PUSCH transmission or the most recent PUSCH transmission opportunity.

9. The method according to any one of claims 1 to 8, characterized in that: The power headroom information includes power headroom information of a target waveform, where the target waveform is determined based on a scenario in which the terminal sends a PUSCH; or, The power headroom information includes power headroom information of a current waveform and a target waveform.

10. The method according to any one of claims 1 to 9, characterized in that: The method further comprises: First information is received, where the first information is determined based on the power headroom report, and the first information is used to schedule a waveform used for sending a PUSCH.

11. The method according to any one of claims 1 to 10, characterized in that: The method further comprises: Second information is received, where the second information includes conversion precoding information, where the conversion precoding information is used to indicate a waveform used to send message 3 during a random access process.

12. A communication method, characterized in that: The method comprises: A power headroom report is received, where the power headroom report includes power headroom information, where the power headroom information is used for waveform switching on a PUSCH.

13. The method according to claim 12, characterized in that The power headroom information includes at least one of the following: Peak to Average Power Ratio PAPR; The difference between the PAPRs corresponding to different waveforms; Maximum power cut-off value MPR value; the difference between the MPR values ​​corresponding to different waveforms; Power margin pH value; The difference between the pH values ​​corresponding to different waveforms; Maximum transmission power Pcmax value; The difference between the Pcmax values ​​corresponding to different waveforms.

14. The method according to any one of claims 12-13, characterized in that: The power parameter value of a single PUSCH transmission meets the power parameter threshold value; Or, the proportion of power parameter values ​​satisfying the power parameter threshold value in multiple PUSCH transmissions is greater than the proportion threshold; Or, the number of transmissions in which the power parameter value satisfies the power parameter threshold value among multiple PUSCH transmissions is greater than the number threshold; Or, the power parameter value of a single PUSCH transmission opportunity satisfies the power parameter threshold value; Or, the proportion of power parameter values ​​satisfying the power parameter threshold value in multiple PUSCH transmission opportunities is greater than the proportion threshold; Or, among the multiple PUSCH transmission opportunities, the number of transmission opportunities whose power parameter values ​​satisfy the power parameter threshold value is greater than the number threshold.

15. The method according to claim 14, characterized in that The power parameter value includes at least one of the following: PH values ​​corresponding to different waveforms; The difference in pH values ​​corresponding to different waveforms; MPR values ​​corresponding to different waveforms; The difference between the MPR values ​​corresponding to different waveforms; Pcmax corresponding to different waveform configurations; The difference between Pcmax corresponding to different waveform configurations; PAPR values ​​corresponding to different waveforms; The difference between the PAPRs corresponding to different waveforms.

16. The method according to claim 14 or 15, characterized in that The power parameter threshold value is met, including at least one of the following: The pH value is greater than the first pH threshold value; The PH value is less than or equal to the second PH threshold value; The MPR values ​​corresponding to different waveforms are higher than the MPR threshold value; The difference between the MPR values ​​corresponding to different waveforms is higher than the difference threshold; The Pcmax value is greater than the first Pcmax value threshold; The Pcmax value is less than or equal to the second Pcmax value threshold.

17. The method according to any one of claims 14 to 16, characterized in that: The single PUSCH transmission or the multiple PUSCH transmissions include: a single or multiple PUSCH transmissions after the most recent power headroom report is sent; The single PUSCH transmission opportunity or the multiple PUSCH transmission opportunities include a single or multiple PUSCH transmission opportunities after the most recent power headroom report is sent.

18. The method according to any one of claims 14 to 17, characterized in that: The multiple PUSCH transmissions or the multiple PUSCH transmission opportunities include: Multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling; Multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling and scheduling-free; Multiple PUSCH transmissions or multiple PUSCH transmission opportunities based on scheduling and scheduling-free for the same waveform configuration.

19. The method according to any one of claims 14 to 17, characterized in that: The single PUSCH transmission or single PUSCH transmission opportunity includes: First PUSCH transmission or first PUSCH transmission opportunity; The most recent PUSCH transmission or the most recent PUSCH transmission opportunity.

20. The method according to any one of claims 12 to 19, characterized in that: The power headroom information includes power headroom information of a target waveform; or, The power headroom information includes power headroom information of a current waveform and a target waveform.

21. The method according to any one of claims 10 to 19, characterized in that: The method further comprises: Sending first information, where the first information is determined based on the power headroom report, and the first information is used to schedule a waveform used for sending a PUSCH.

22. The method according to any one of claims 10 to 20, characterized in that: The method further comprises: Send second information, where the second information includes conversion precoding information, and the conversion precoding information is used to indicate the waveform used to send message 3 during the random access process.

23. A communication method, characterized in that: The method comprises: The terminal sends a power headroom report, where the power headroom report includes power headroom information of a physical uplink shared channel PUSCH sent by the terminal, and the power headroom information is used for waveform switching used by the PUSCH; The network device receives the power headroom report.

24. A communication method, characterized in that: The method comprises: The terminal determines the first waveform as the uplink waveform; After the terminal accesses the network device through the first waveform, sending a power headroom report, the power headroom report including power headroom information, the power headroom information being used for waveform switching on a physical uplink shared channel PUSCH; After receiving the power headroom report, the network device sends first information, where the first information is used to schedule the waveform used by the terminal to send the PUSCH as a second waveform, and the first information is determined based on the power headroom report; The terminal determines to use a second waveform to send a PUSCH, and the first waveform and the second waveform are the same or different.

25. The method according to claim 24, characterized in that After the terminal accesses the network device through the first waveform and before the terminal sends a remaining capacity report, the method further includes: The terminal determines that a first condition is satisfied, where the first condition is related to the power of a waveform currently in use, or the first condition is related to the power of the second waveform.

26. A terminal, characterized in that: include: The transceiver module is used to send a power headroom report, where the power headroom report includes power headroom information, and the power headroom information is used for waveform switching on a physical uplink shared channel PUSCH.

27. A network device, characterized in that: include: The transceiver module is used to receive a power headroom report, where the power headroom report includes power headroom information, and the power headroom information is used for waveform switching on a physical uplink shared channel PUSCH.

28. A terminal, characterized in that: include: one or more processors; The processor is used to execute the communication method according to any one of claims 1 to 11.

29. A network device, characterized in that: include: one or more processors; The processor is used to execute the communication method described in any one of claims 12-22.

30. A communication system, characterized in that: The invention comprises a terminal and a network device, wherein the terminal is configured to implement the communication method according to any one of claims 1 to 11, and the network device is configured to implement the communication method according to any one of claims 12 to 22.

31. A storage medium storing instructions, characterized in that: When the instruction is executed on the communication device, the communication device executes the communication method as described in any one of claims 1-11-12-22.

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