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

Abstract

The present disclosure relates to a communication method, a terminal, a network device, a communication system, and a storage medium. The communication method comprises: sending first information, wherein the first information is used for indicating power information of different waveforms used by a terminal at full power to send a physical uplink shared channel (PUSCH). By means of the scheme provided in the embodiments of the present disclosure, a network device can more accurately make scheduling decisions of uplink transmission waveform switching.

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, comprising: sending first information, wherein the first information is used to indicate the capability of a terminal, and the first information is used to indicate power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH under full power.

[0007] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising: receiving first information, the first information being used to indicate the capability of a terminal, the first information being used to indicate power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH under full power conditions.

[0008] According to a third aspect of an embodiment of the present disclosure, a communication method is provided, comprising: a terminal sending first information, wherein the first information is used to indicate the capability of the terminal, and the first information is used to indicate power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH under full power; and a network device receives the first information.

[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 conditions; 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 the fifth aspect of an embodiment of the present disclosure, a terminal is provided, comprising: a transceiver module for sending first information, wherein the first information is used to indicate the capability of the terminal, and the first information is used to indicate power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH under full power.

[0011] According to the sixth aspect of an embodiment of the present disclosure, a network device is provided, comprising: a transceiver module for receiving first information, wherein the first information is used to indicate the capability of a terminal, and the first information is used to indicate power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH under full power.

[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 the eleventh aspect of the embodiment of the present disclosure, a storage medium is provided, which stores instructions, characterized in that when the Zhong Ling is run on a communication device, the communication device executes the communication method described in any one of the second 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 first information, where the first information is used to indicate the capability of the terminal, and the first information is used to indicate the power information of different waveforms used by the terminal to send the physical uplink shared channel PUSCH under full power.

[0039] In the above embodiment, the terminal reports the power information of different waveforms used to send the PUSCH at full power, so that the network device can make a more accurate scheduling decision on switching the uplink transmission waveform.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the power information is determined based on an uplink configuration parameter of the PUSCH, where the uplink configuration parameter is used to indicate a parameter used for sending the PUSCH.

[0041] In the above embodiment, different uplink configuration parameters correspond to different power information. That is, the power information can be determined based on the uplink configuration parameters, thereby sending accurate power information to the network device so that the network device can make more accurate scheduling decisions for switching uplink transmission waveforms.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the uplink configuration parameters include at least one of the following: one or more groups of uplink configuration parameters pre-configured by the network device; one or more groups of pre-defined uplink configuration parameters; one or more groups of uplink configuration parameters corresponding to the power information pre-stored by the terminal.

[0043] In the above embodiment, the uplink configuration parameters can be pre-configured by the network device, pre-defined, or correspond to the power information pre-stored by the terminal. According to different situations, the uplink configuration parameters can be adaptively adopted from any of the above to improve communication efficiency.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the power information is determined based on at least one of the following methods: based on the peak-to-average power ratio PAPR corresponding to different uplink configuration parameters pre-stored by the terminal; based on the maximum power backoff MPR value obtained after processing by the power amplifier (PA) of the terminal.

[0045] In the above embodiment, the power information can be determined based on at least one of PAPR and MPR, so as to achieve more accurate reporting of power information or faster reporting of power information, so that the network device can make scheduling decisions for switching the uplink transmission waveform more accurately or more efficiently.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the power information includes at least one of the following: a peak-to-average power ratio (PAPR) corresponding to different waveforms; a PAPR difference corresponding to different waveforms; an actual value of a maximum power backoff (MPR) value corresponding to different waveforms; a difference between actual MPR values ​​corresponding to different waveforms; an actual value of the maximum transmission power corresponding to different waveforms; a difference between actual maximum transmission power values ​​corresponding to different waveforms; a peak-to-average power ratio (PAPR) mapping value index corresponding to different waveforms; a PAPR difference mapping value index corresponding to different waveforms; an actual value mapping value index of the maximum power backoff (MPR) value corresponding to different waveforms; a difference mapping value index between actual MPR values ​​corresponding to different waveforms; an actual value mapping value index of the maximum transmission power corresponding to different waveforms; and a difference mapping value index between actual maximum transmission power values ​​corresponding to different waveforms.

[0047] In the above embodiment, the power information may include at least one of the above items, so that the network device can make a scheduling decision to switch the uplink transmission waveform more accurately according to the reported power information.

[0048] In combination with some embodiments of the first aspect, in some embodiments, the uplink configuration parameter includes at least one of the following: waveform; bandwidth configuration; modulation mode.

[0049] In the above embodiment, the uplink configuration parameters may include at least one of the above items, so that the corresponding power information can be reported in response to various different combinations of uplink configuration parameters, thereby facilitating the network equipment to make waveform switching scheduling decisions more accurately in response to various different situations of uplink configuration parameters.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the different waveforms include 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.

[0051] In the above embodiment, the different waveforms include at least one of the above items, so as to realize mutual switching of the above waveforms and improve communication efficiency.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving second information, where the second information is determined based on the first information, and the second information is used to schedule the waveform used for sending the PUSCH.

[0053] In the above embodiment, the terminal receives the second information and can schedule the waveform used by the PUSHC to improve communication efficiency.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving third information, the third information including conversion precoding information, and the conversion precoding information is used to indicate the waveform used to send message 3 during the random access process.

[0055] In the above embodiment, the terminal receives the third information, which can instruct the terminal to use a waveform to improve communication efficiency.

[0056] In a second aspect, an embodiment of the present disclosure proposes a communication method, which includes: receiving first information, where the first information is used to indicate the capability of the terminal, and the first information is used to indicate power information of different waveforms used by the terminal to send the physical uplink shared channel PUSCH under full power.

[0057] In combination with some embodiments of the second aspect, in some embodiments, the power information is determined based on an uplink configuration parameter of the PUSCH, where the uplink configuration parameter is used to represent a parameter used for sending the PUSCH.

[0058] In combination with some embodiments of the second aspect, in some embodiments, the uplink configuration parameters include at least one of the following: one or more groups of uplink configuration parameters pre-configured by the network device; one or more groups of pre-defined uplink configuration parameters; one or more groups of uplink configuration parameters corresponding to the power information pre-stored by the terminal.

[0059] In combination with some embodiments of the second aspect, in some embodiments, the power information is determined based on at least one of the following methods: based on the peak-to-average power ratio PAPR corresponding to different uplink configuration parameters pre-stored by the terminal; based on the maximum power backoff MPR value obtained after processing by the power amplifier (PA) of the terminal.

[0060] In combination with some embodiments of the second aspect, in some embodiments, the power information includes at least one of the following: a peak-to-average power ratio (PAPR) corresponding to different waveforms; a PAPR difference corresponding to different waveforms; an actual value of a maximum power backoff (MPR) value corresponding to different waveforms; a difference between actual MPR values ​​corresponding to different waveforms; an actual value of the maximum transmission power corresponding to different waveforms; a difference between actual maximum transmission power values ​​corresponding to different waveforms; a peak-to-average power ratio (PAPR) mapping value index corresponding to different waveforms; a PAPR difference mapping value index corresponding to different waveforms; an actual value mapping value index of the maximum power backoff (MPR) value corresponding to different waveforms; a difference mapping value index between actual MPR values ​​corresponding to different waveforms; an actual value mapping value index of the maximum transmission power corresponding to different waveforms; and a difference mapping value index between actual maximum transmission power values ​​corresponding to different waveforms.

[0061] In combination with some embodiments of the second aspect, in some embodiments, the uplink configuration parameters include at least one of the following: waveform; bandwidth configuration; modulation mode.

[0062] In combination with some embodiments of the second aspect, in some embodiments, the different waveforms include 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.

[0063] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: receiving second information, where the second information is determined based on the first information, and the second information is used to schedule the waveform used for sending the PUSCH.

[0064] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: receiving third information, the third information including conversion precoding information, and the conversion precoding information is used to indicate the waveform used to send message 3 during the random access process.

[0065] In a third aspect, an embodiment of the present disclosure proposes a communication method, which includes: a terminal sends first information, where the first information is used to indicate the capability of the terminal, and the first information includes power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH under full power; and a network device receives the first information.

[0066] In a fourth aspect, a communication method is provided, the method comprising: a network device sends system information, the system information including configuration information, the configuration information being used to instruct a terminal to use a first waveform; the terminal receives the system information, accesses the network device through a random access process, and uses the first waveform as the waveform of message 3 during the random access process; after the terminal accesses the network device, the first information is sent, the first information being used to indicate power information of different waveforms used by the terminal to send PUSCH under full power; after the network device receives the first information, the second information is sent, the second information being used to schedule the waveform used by the terminal to send PUSCH to be the second waveform; the terminal determines to use the second waveform to send PUSCH, and the first waveform and the second waveform are the same or different.

[0067] In combination with some embodiments of the fourth aspect, in some embodiments, the method further includes: after the terminal accesses the network device, the terminal receives the fourth information, and the fourth information is used to indicate the waveform used by the terminal.

[0068] In a fifth 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.

[0069] In a sixth 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.

[0070] In a seventh 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.

[0071] In an eighth 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.

[0072] In the ninth 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.

[0073] In the tenth 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.

[0074] In an eleventh 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.

[0075] In a twelfth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the first and third aspects, and the optional implementation of the second and third aspects.

[0076] In a thirteenth 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0083] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0084] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0098] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0099] 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.

[0100] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0101] As shown in FIG. 1 a , a communication system 100 includes a terminal 101 and a network device 102 .

[0102] 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.

[0103] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0104] 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.

[0105] 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.

[0106] 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 Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0107] 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.

[0108] 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).

[0109] 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.

[0110] 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.

[0111] 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).

[0112] 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.

[0113] In some embodiments, waveforms for uplink transmission are supported in new radio (NR), such as CP-OFDM and DFT-S-OFDM.

[0114] 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 .

[0115] In some embodiments, the PAPR of the DFT-S-OFDM waveform is low, and the PAPR of the CP-OFDM waveform is high.

[0116] 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.

[0117] 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.

[0118] In some embodiments, one bit is added to downlink control information (DCI) to indicate a specific uplink scheduling PUSCH channel transmission waveform.

[0119] 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.

[0120] Table 2

[0121] 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.

[0122] 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.

[0123] 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 .

[0124] 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.

[0125] Table 3

[0126] 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

[0127] 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 cIndicates the additional power backoff required by network signaling to ensure the relevant radiation requirements of different operating frequency bands, ΔT IB,c Indicates 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.

[0128] 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

[0129] 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 transmit in this situation. However, 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.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] When dynamically switching the uplink transmission waveform, there is a problem of inaccurate scheduling.

[0134] 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.

[0135] 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:

[0136] Step S2101 , the network device 102 sends system information to the terminal 101 .

[0137] In some embodiments, the terminal 101 receives system information sent by the network device.

[0138] In some embodiments, the system information includes configuration information, where the configuration information is used to instruct the terminal to use the first waveform.

[0139] In some embodiments, the configuration information is used to indicate the waveform of the terminal random access procedure message 3.

[0140] 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.

[0141] Step S2102 , the network device 102 sends third information to the terminal 101 .

[0142] In some embodiments, terminal 101 receives third information sent by the network device.

[0143] In some embodiments, after the terminal receives the network device, the terminal receives the third information.

[0144] In some embodiments, the third 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.

[0145] In some embodiments, the third information may be, for example, random access configuration information.

[0146] 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).

[0147] In some embodiments, the terminal determines the waveform used to transmit the PUSCH based on the third 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.

[0148] Step S2103 , the network device 102 sends fourth information to the terminal 101 .

[0149] In some embodiments, the terminal 101 receives fourth information sent by the network device 102 .

[0150] In some embodiments, after the terminal accesses the network device, the network device sends fourth information, and the terminal receives the fourth information, where the fourth information is used to indicate the waveform used by the terminal.

[0151] In some embodiments, the fourth information is information for configuring the PUSCH. For example, it can be RRC signaling. The network device can semi-statically configure the waveform used by the terminal to send the PUSCH through RRC signaling.

[0152] 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.

[0153] 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 third information, that is, determine the waveform used to send the PUSCH based on the waveform indicated by message 3 during the random access procedure.

[0154] 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.

[0155] It can be understood that the above steps S2101, S2102 and S2103 are optional execution steps.

[0156] Step S2104 , the terminal 101 sends first information to the network device 102 .

[0157] In some embodiments, the network device 102 receives the first information sent by the terminal 101 .

[0158] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0159] 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.

[0160] In some embodiments, the first information is used to indicate the capabilities of the terminal, the first information is used to indicate the terminal capability information, and the first information is used to indicate the power information of different waveforms used by the terminal to send PUSCH at full power. Optionally, the first information and the capability information can be interchangeable.

[0161] In some embodiments, the terminal's capabilities include air interface capabilities. For example, the terminal's capabilities include frequency bands and carrier aggregation combinations supported by the terminal.

[0162] Of course, the terminal capabilities listed above are mostly illustrative examples, and the terminal capabilities are not limited to them. This disclosure does not list them one by one.

[0163] Alternatively, the different waveforms may include CP-OFDM, or include DFT-S-OFDM, or include CP-OFDM and DFT-S-OFDM.

[0164] Of course, the above different waveforms are only illustrative examples. The different waveforms used by the terminal to send PUSCH at full power are not limited to these, and this disclosure does not limit them.

[0165] In some embodiments, full-power transmission means that the terminal transmits at a maximum transmission power corresponding to a predefined power level. For example, the predefined power level of the terminal is PC1.5, and the maximum transmission power corresponding to PC1.5 is 29 decibel milliwatts (dBm). For this terminal, full-power transmission means transmitting at a power of 29 dBm.

[0166] In some embodiments, the power information is determined based on different uplink configuration parameters of the PUSCH.

[0167] In some embodiments, the uplink configuration parameter includes a waveform.

[0168] In some embodiments, the uplink configuration parameters include bandwidth configuration, wherein the bandwidth configuration may include at least one of bandwidth size, bandwidth position allocated in the frequency domain, and the like.

[0169] In some embodiments, the uplink configuration parameters include a modulation mode.

[0170] Exemplarily, the uplink configuration parameters may be modulation and coding scheme (MCS), full data rate access (FDRA), etc., but the present disclosure does not limit this.

[0171] Optionally, the uplink configuration parameters include one or more groups of uplink configuration parameters pre-configured by the network device.

[0172] Optionally, the uplink configuration parameters include one or more predefined groups of uplink configuration parameters.

[0173] Optionally, the uplink configuration parameters include one or more groups of uplink configuration parameters corresponding to power information pre-stored by the terminal.

[0174] 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.

[0175] In some embodiments, the network device 102 configures one or more groups of uplink configuration parameters to the terminal 101 .

[0176] Optionally, the terminal may actually measure power information under one or more groups of uplink configuration parameters configured by the network device.

[0177] Optionally, the terminal may pre-store power information corresponding to one or more groups of uplink configuration parameters configured by the network device.

[0178] It can be understood that when the terminal actually measures the power information, it does not need to actually send the PUSCH.

[0179] In some embodiments, one or more sets of uplink configuration parameters are predefined.

[0180] Optionally, the terminal may actually measure power information under one or more groups of uplink configuration parameters predefined by the network device.

[0181] Optionally, the terminal may pre-store power information corresponding to one or more groups of uplink configuration parameters pre-defined by the network device.

[0182] In some embodiments, the terminal pre-stores one or more groups of uplink configuration parameters corresponding to the power information. For example, the terminal pre-stores a power information table corresponding to one or more groups of uplink configuration parameters.

[0183] In some embodiments, the first information includes power information corresponding to all uplink configuration parameters. For example, the first information includes power information corresponding to all uplink configuration parameters pre-configured by the network device. For example, the first information includes power information corresponding to all pre-defined uplink configuration parameters. For another example, the first information includes all power information in a pre-stored power information table corresponding to one or more sets of uplink configuration parameters.

[0184] In some embodiments, the first information includes power information corresponding to some uplink configuration parameters. For example, the first information includes power information corresponding to some uplink configuration parameters pre-configured by the network device. For example, the first information includes power information corresponding to some pre-defined uplink configuration parameters. For another example, the first information includes a portion of a pre-stored power information table corresponding to one or more sets of uplink configuration parameters.

[0185] In some embodiments, the power information may be determined based on PAPRs corresponding to different uplink configuration parameters pre-stored by the terminal.

[0186] In some embodiments, the power information may include power information related to PAPRs corresponding to different waveforms.

[0187] Optionally, the power information includes PAPRs corresponding to different waveforms. Optionally, the power information includes PAPR differences corresponding to different waveforms. Optionally, the power information includes PAPR mapping value indices corresponding to different waveforms. Optionally, the power information includes PAPR difference mapping value indices corresponding to different waveforms.

[0188] In some embodiments, the power information may include the PAPR corresponding to different waveforms. The network device may schedule dynamic switching of uplink transmission waveforms based on the PAPR. For example, if the PAPR of the waveform currently used by the terminal to transmit PUSCH is less than the PAPR of the target waveform, the network device may switch the waveform currently used by the terminal to transmit PUSCH to the target waveform. Alternatively, if the PAPR of the waveform currently used by the terminal to transmit PUSCH is greater than the PAPR of the target waveform, the network device may switch the waveform currently used by the terminal to transmit PUSCH to the target waveform.

[0189] It can be understood that the above examples in the present disclosure are only for explanation. In actual situations, the scheduling method of the network device for waveform switching according to the PAPR is not limited in the present disclosure.

[0190] In some embodiments, the power information may include the PAPR difference corresponding to different waveforms. The network device may schedule dynamic switching of uplink transmission waveforms based on the PAPR difference. For example, if the PAPR difference between the waveform currently used by the terminal to transmit PUSCH and the target waveform is greater than a threshold, the network device may switch the waveform currently used by the terminal to transmit PUSCH to the target waveform. Alternatively, if the PAPR difference between the waveform currently used by the terminal to transmit PUSCH and the target waveform is greater than a threshold, the network device may switch the waveform currently used by the terminal to transmit PUSCH to the target waveform.

[0191] In some embodiments, a PAPR mapping value index may be used to represent the PAPR. For example, a mapping value index of 1 may represent a PAPR of 1 dB, a mapping value index of 2 may represent a PAPR of 1.8 dB, etc. Of course, the above specific examples of PAPR mapping value indexes are merely illustrative and are not limited in this disclosure.

[0192] In some embodiments, a PAPR difference mapping value index may be used to represent the PAPR difference.

[0193] In some embodiments, the terminal may pre-report a PAPR mapping value index corresponding to the PAPR, so that the network device can determine the PAPR according to the PAPR mapping value index included in the first information, thereby configuring dynamic switching of the uplink transmission waveform.

[0194] In some embodiments, the terminal may pre-report the PAPR difference mapping value index corresponding to the PAPR difference, so that the network device can determine the PAPR difference according to the PAPR difference index included in the first information, thereby configuring dynamic switching of the uplink transmission waveform.

[0195] In some embodiments, a PAPR mapping value index corresponding to the PAPR may be predefined, so that the network device can determine the PAPR according to the PAPR mapping value index included in the first information, thereby performing scheduling configuration for dynamic waveform switching.

[0196] In some embodiments, a PAPR difference mapping value index corresponding to the PAPR difference may be predefined so that the network device can determine the PAPR difference according to the PAPR difference mapping value index included in the first information, thereby performing scheduling configuration for dynamic waveform switching.

[0197] In some embodiments, the power information may be determined based on an MPR obtained after processing by a PA of the terminal.

[0198] In some embodiments, the power information may include power information related to the MPRs of different waveforms. Optionally, the power information includes actual values ​​of the MPR values ​​of different waveforms. Optionally, the power information includes differences between the MPR values ​​of different waveforms. Optionally, the power information includes actual values ​​of the maximum transmission powers of different waveforms. Optionally, the power information includes differences between actual values ​​of the maximum transmission powers of different waveforms. Optionally, the power information includes a mapping value index of the actual MPR values ​​of different waveforms. Optionally, the power information includes a mapping value index of the differences between actual MPR values ​​of different waveforms. Optionally, the power information includes a mapping value index of the actual values ​​of the maximum transmission powers of different waveforms. Optionally, the power information includes a mapping value index of the differences between actual values ​​of the maximum transmission powers of different waveforms.

[0199] In some embodiments, an MPR actual value mapping value index may be used to represent the MPR actual value.

[0200] In some embodiments, a difference map value index between MPR actual values ​​may be used to represent the difference between the MPR actual values.

[0201] In some embodiments, an actual value mapping value index of the maximum transmission power may be used to represent the actual value of the maximum transmission power.

[0202] In some embodiments, a difference mapping value index between actual values ​​of the maximum transmission power may be used to represent the actual value of the maximum transmission power.

[0203] In some embodiments, the network device may perform scheduling configuration for dynamic waveform switching based on one or more of the actual value of the MPR value, the difference between the MPR values, the actual value of the maximum transmission power, the difference between the actual values ​​of the maximum transmission power, the MPR actual value mapping value index, the MPR actual value difference mapping value index, the actual value mapping value index of the maximum transmission power, and the actual value mapping value index of the maximum transmission power. Specific implementation methods can refer to the exemplary manner in which the network device performs scheduling for dynamic uplink transmission waveform switching based on the PAPR value, and this disclosure will not be repeated here.

[0204] In some embodiments, the power information is determined based on PAPRs corresponding to different uplink configuration parameters pre-stored by the terminal and an MPR obtained after processing the PA of the terminal.

[0205] In some embodiments, the power information may include power information related to different MPRs and PAPRs. In some embodiments, the power information may include actual PAPR and MPR values ​​corresponding to different waveforms. In some embodiments, the power information may include differences in PAPRs and MPR values ​​corresponding to different waveforms. In some embodiments, the power information may include indexes of mapping values ​​of PAPR and MPR values ​​corresponding to different waveforms. In some embodiments, the power information may include indexes of mapping values ​​of PAPR differences and MPR differences corresponding to different waveforms. In some embodiments, the power information may include actual values ​​of PAPR and maximum transmission power corresponding to different waveforms. In some embodiments, the power information may include the difference between the difference in PAPRs and the actual value of maximum transmission power corresponding to different waveforms. In some embodiments, the power information may include indexes of mapping values ​​of PAPRs and actual value of maximum transmission power corresponding to different waveforms. In some embodiments, the power information may include indexes of mapping values ​​of PAPRs and actual value of maximum transmission power corresponding to different waveforms. In some embodiments, the power information may include indexes of mapping values ​​of PAPR differences and actual value of maximum transmission power corresponding to different waveforms. In some embodiments, the power information may include indexes of mapping values ​​of PAPR differences and actual value of maximum transmission power corresponding to different waveforms. In some embodiments, the power information may include indexes of mapping values ​​of PAPR differences and actual value of maximum transmission power corresponding to different waveforms. In some embodiments, the power information may include indexes of mapping values ​​of MPR differences and actual value of maximum transmission power corresponding to different waveforms. In some embodiments, the power information may include indexes of mapping values ​​of MPR differences and actual value of maximum transmission power corresponding to different waveforms. In some embodiments, the power information may include an MPR mapping value index corresponding to different waveforms and an actual value mapping value index of the maximum transmission power. In some embodiments, the power information may include a difference mapping value index between the MPR values ​​corresponding to different waveforms and an actual value mapping value index of the maximum transmission power. In some embodiments, the power information may include the PAPR, the actual MPR value, and the actual maximum transmission power value corresponding to different waveforms. In some embodiments, the power information may include a difference between the PAPR values ​​corresponding to different waveforms, a difference between the actual MPR values, and a difference between the actual maximum transmission power values. In some embodiments, the power information may include a PAPR mapping value index corresponding to different waveforms, an MPR actual value mapping value index, and an actual maximum transmission power mapping value index. In some embodiments, the power information may include a difference mapping value index between the PAPR values ​​corresponding to different waveforms, a difference mapping value index between the actual MPR values, and a difference mapping value index between the actual maximum transmission power values.

[0206] In some embodiments, terminal 101 sends a PHR to network device 102 .

[0207] In some embodiments, the network device 102 receives the PHR sent by the terminal 101 .

[0208] In some embodiments, the PHR includes PA-related information, such as PA structure, PA corresponding power level, etc. The network device 102 can determine the current actual MPR based on the PA-related information in the PHR, thereby implementing scheduling configuration for dynamic switching of uplink transmission waveforms.

[0209] In some embodiments, the name of the first information is not limited, and it can be, for example, "capability information", "terminal reporting information", etc.

[0210] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", etc. can be used interchangeably.

[0211] In some embodiments, the network device 102 schedules dynamic switching of uplink transmission waveforms based on the first information.

[0212] In some embodiments, the first information is used to indicate the capabilities of the terminal. In some embodiments, the first information is used to indicate power information of different waveforms used by the terminal to transmit PUSCH at full power. In some embodiments, the network device schedules dynamic switching of uplink transmission waveforms based on the power information of different waveforms.

[0213] For example, the network device may schedule the terminal to switch the waveform used to send the PUSCH from the current waveform to the target waveform based on the power information of different waveforms.

[0214] For another example, the network device may schedule the terminal to send a PUSCH and continue to use the current waveform based on power information of different waveforms.

[0215] Step S2105 , the network device 102 sends second information to the terminal 101 .

[0216] In some embodiments, the terminal 101 receives second information sent by the network device.

[0217] In some embodiments, the second information may be, for example, a DCI, or a medium access control control element (MAC CE), or an RRC reconfiguration message.

[0218] In some embodiments, the second information is used to schedule the waveform used by the terminal to transmit the PUSCH. For example, the second information is used to schedule the waveform used by the terminal to transmit the PUSCH to be the second waveform, where the second waveform is used to represent the waveform after the waveform is switched.

[0219] In some embodiments, the terminal determines to use the second waveform for sending the PUSCH.

[0220] In some embodiments, the first waveform and the second waveform may be the same, that is, the second 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 second information is used to instruct the terminal to switch the waveform of the PUSCH sent from the first waveform to the second waveform.

[0221] The communication method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2105. For example, step S2104 may be implemented as an independent embodiment. Step S2104 and step S2105 may be implemented as independent embodiments.

[0222] In some embodiments, steps S2102 and S2103 may be executed in an interchanged order or simultaneously.

[0223] In some embodiments, steps S2101, S2102, S2103, and S2104 are optional and may be omitted or replaced in different embodiments.

[0224] In some embodiments, step S2102 and step S2103 are optional and can be omitted or replaced in different embodiments.

[0225] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0226] 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:

[0227] Step S3101, obtain system information.

[0228] 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.

[0229] 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.

[0230] 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.

[0231] In some embodiments, terminal 101 obtains system information specified by the protocol.

[0232] In some embodiments, terminal 101 obtains system information from upper layer(s).

[0233] In some embodiments, terminal 101 performs processing to obtain system information.

[0234] 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.

[0235] Step S3102, obtain third information.

[0236] 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.

[0237] In some embodiments, the terminal receives the third information sent by the network device, but is not limited thereto, and may also receive the third information sent by other entities.

[0238] In some embodiments, the terminal 101 receives the third information sent by the network device 102, but is not limited thereto and may also receive the third information sent by other entities.

[0239] In some embodiments, terminal 101 obtains third information specified by the protocol.

[0240] In some embodiments, terminal 101 obtains the third information from upper layer(s).

[0241] In some embodiments, terminal 101 performs processing to obtain the third information.

[0242] In some embodiments, step S3102 is omitted, and the terminal 101 autonomously implements the function indicated by the third information, or the above function is default or by default.

[0243] Step S3103, obtain the fourth information.

[0244] 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.

[0245] In some embodiments, the terminal receives the fourth information sent by the network device, but is not limited thereto, and may also receive the fourth information sent by other entities.

[0246] In some embodiments, the terminal 101 receives the fourth information sent by the network device 102, but is not limited thereto and may also receive the fourth information sent by other entities.

[0247] In some embodiments, terminal 101 obtains fourth information specified by the protocol.

[0248] In some embodiments, terminal 101 obtains the fourth information from upper layer(s).

[0249] In some embodiments, the terminal 101 performs processing to obtain the fourth information.

[0250] In some embodiments, step S3103 is omitted, and the terminal 101 autonomously implements the function indicated by the fourth information, or the above function is default or by default.

[0251] Step S3104, sending the first information.

[0252] 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.

[0253] 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.

[0254] Step S3105, obtaining the second information.

[0255] The optional implementation of step S3105 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0256] 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.

[0257] In some embodiments, terminal 101 receives the second information sent by network device 102, but is not limited thereto and may also receive the second information sent by other entities. In some embodiments, terminal 101 obtains the second information specified by the protocol. In some embodiments, terminal 101 obtains the second information from an upper layer(s). In some embodiments, terminal 101 processes the second information to obtain the second information. In some embodiments, step S3104 is omitted, and terminal 101 autonomously implements the function indicated by the second information, or the function is defaulted or acquiesced.

[0258] The communication method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3105. For example, step S3104 may be implemented as an independent embodiment. Step S3104 and step S3105 may be implemented as independent embodiments.

[0259] In some embodiments, steps S3102 and S3103 may be executed in an interchanged order or simultaneously.

[0260] In some embodiments, steps S3101, S3102, S3103, and S3104 are optional and may be omitted or replaced in different embodiments.

[0261] In some embodiments, step S3102 and step S3103 are optional and can be omitted or replaced in different embodiments.

[0262] 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:

[0263] Step S3201, sending the first information.

[0264] The optional implementation of step S3101 can refer to the optional implementation of step S2104 in Figure 2, step S3104 in Figure 3a, and other related parts in the embodiments involved in Figures 2 and 3a, which will not be repeated here.

[0265] In some embodiments, the terminal 101 sends the first information to the network device 102, but is not limited thereto and may also send the second information to other entities.

[0266] Step S3202, obtain the second information.

[0267] The optional implementation of step S3202 can refer to step S2105 in FIG. 2 , the optional implementation of step S3105 in FIG. 3 a , and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

[0268] 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.

[0269] In some embodiments, terminal 101 receives the second information sent by network device 102, but is not limited thereto and may also receive the second information sent by other entities. In some embodiments, terminal 101 obtains the second information specified by the protocol. In some embodiments, terminal 101 obtains the second information from an upper layer(s). In some embodiments, terminal 101 processes the second information to obtain the second information. In some embodiments, step S3202 is omitted, and terminal 101 autonomously implements the function indicated by the second information, or the function is defaulted or acquiesced.

[0270] 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:

[0271] Step S3301, sending the first information.

[0272] The optional implementation of step S3301 can refer to the optional implementation of step S2104 in Figure 2, step S3104 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.

[0273] 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.

[0274] In some embodiments, the power information is determined based on different uplink configuration parameters of the PUSCH.

[0275] In the above embodiment, different uplink configuration parameters correspond to different power information. That is, the power information can be determined based on the uplink configuration parameters, thereby sending accurate power information to the network device so that the network device can make more accurate scheduling decisions for switching uplink transmission waveforms.

[0276] In some embodiments, different uplink configuration parameters include at least one of the following: one or more groups of uplink configuration parameters pre-configured by the network device; one or more groups of pre-defined uplink configuration parameters; one or more groups of uplink configuration parameters corresponding to power information pre-stored by the terminal.

[0277] In the above embodiment, the uplink configuration parameters can be pre-configured by the network device, pre-defined, or correspond to the power information pre-stored by the terminal. According to different situations, the uplink configuration parameters can be adaptively adopted from any of the above to improve communication efficiency.

[0278] In some embodiments, the power information is determined based on at least one of the following methods: based on the peak-to-average power ratio PAPR corresponding to different uplink configuration parameters pre-stored by the terminal; based on the maximum power fallback MPR value obtained after processing by the power amplifier (PA) of the terminal.

[0279] In the above embodiment, the power information can be determined based on at least one of PAPR and MPR, so as to achieve more accurate reporting of power information or faster reporting of power information, so that the network device can make scheduling decisions for switching the uplink transmission waveform more accurately or more efficiently.

[0280] In some embodiments, the power information includes at least one of the following: peak-to-average power ratio (PAPR) corresponding to different waveforms; PAPR difference corresponding to different waveforms; actual value of maximum power backoff (MPR) value corresponding to different waveforms; difference between actual MPR values ​​corresponding to different waveforms; actual value of maximum transmission power corresponding to different waveforms; difference between actual maximum transmission power values ​​corresponding to different waveforms; peak-to-average power ratio (PAPR) mapping value index corresponding to different waveforms; PAPR difference mapping value index corresponding to different waveforms; actual value mapping value index of maximum power backoff (MPR) value corresponding to different waveforms; difference mapping value index between actual MPR values ​​corresponding to different waveforms; actual value mapping value index of maximum transmission power corresponding to different waveforms; difference mapping value index between actual maximum transmission power values ​​corresponding to different waveforms.

[0281] In the above embodiment, the power information may include at least one of the above items, so that the network device can make a scheduling decision to switch the uplink transmission waveform more accurately according to the reported power information.

[0282] In some embodiments, the uplink configuration parameters include at least one of the following: waveform; bandwidth configuration; modulation mode.

[0283] In the above embodiment, the uplink configuration parameters may include at least one of the above items, so that the corresponding power information can be reported in response to various different combinations of uplink configuration parameters, thereby facilitating the network equipment to make waveform switching scheduling decisions more accurately in response to various different situations of uplink configuration parameters.

[0284] In some embodiments, the different waveforms include 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).

[0285] 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:

[0286] Step S4101, sending system information.

[0287] 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.

[0288] 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.

[0289] Step S4102, sending the third information.

[0290] 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.

[0291] In some embodiments, the terminal 101 sends the third information to the network device 102, but is not limited thereto and the third information may also be sent to other entities.

[0292] Step S4103, sending the fourth information.

[0293] The optional implementation of step S4103 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.

[0294] In some embodiments, the terminal 101 sends the fourth information to the network device 102, but is not limited thereto, and the fourth information may also be sent to other entities.

[0295] Step S4104, obtaining first information.

[0296] 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.

[0297] In some embodiments, the network device receives the first information sent by the terminal, but is not limited thereto and may also receive the first information sent by other entities.

[0298] In some embodiments, the network device 102 receives the first information sent by the terminal 101, but is not limited thereto and may also receive the first information sent by other entities.

[0299] In some embodiments, the network device 102 obtains first information specified by the protocol.

[0300] In some embodiments, the network device 102 obtains the first information from an upper layer(s).

[0301] In some embodiments, the network device 102 performs processing to obtain the first information.

[0302] In some embodiments, step S4101 is omitted, and the network device 102 autonomously implements the function indicated by the first information, or the above function is default or by default.

[0303] Step S4105, sending the second information.

[0304] The optional implementation of step S4105 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0305] 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.

[0306] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4101 and S4102. For example, step S4101 may be implemented as an independent embodiment. Steps S4101 and S4104 may be implemented as independent embodiments.

[0307] In some embodiments, steps S4101 and S4102 may be executed in an interchanged order or simultaneously.

[0308] In some embodiments, step S4102, step S4103, and step S4104 are optional and can be omitted or replaced in different embodiments.

[0309] In some embodiments, step S4102 and step S4103 are optional and can be omitted or replaced in different embodiments.

[0310] 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:

[0311] Step S4201, obtain first information.

[0312] The optional implementation of step S4201 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.

[0313] In some embodiments, the network device receives the first information sent by the terminal, but is not limited thereto and may also receive the first information sent by other entities.

[0314] In some embodiments, the network device 102 receives the first information sent by the terminal 101, but is not limited thereto and may also receive the first information sent by other entities.

[0315] In some embodiments, the network device 102 obtains first information specified by the protocol.

[0316] In some embodiments, the network device 102 obtains the first information from an upper layer(s).

[0317] In some embodiments, the network device 102 performs processing to obtain the first information.

[0318] In some embodiments, step S4101 is omitted, and the network device 102 autonomously implements the function indicated by the first information, or the above function is default or by default.

[0319] Step S4202, sending the second information.

[0320] The optional implementation of step S4202 can refer to the optional implementation of step S2105 in Figure 2, step S4105 in Figure 4a, and other related parts in the embodiments involved in Figures 2 and 4a, which will not be repeated here.

[0321] 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.

[0322] Figure 4c is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 4c, the embodiment of the present disclosure relates to a communication method, which includes:

[0323] Step S4301, obtain first information.

[0324] The optional implementation of step S4301 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0325] In some embodiments, the network device 102 receives the first information sent by the terminal 101, but is not limited thereto and may also receive the first information sent by other entities.

[0326] In some embodiments, the network device 102 obtains first information specified by the protocol.

[0327] In some embodiments, the network device 102 obtains the first information from an upper layer(s).

[0328] In some embodiments, the network device 102 performs processing to obtain the first information.

[0329] In some embodiments, step S4301 is omitted, and the network device 102 autonomously implements the function indicated by the first information, or the above function is default or by default.

[0330] In some embodiments, the power information is determined based on different uplink configuration parameters of the PUSCH.

[0331] In the above embodiment, different uplink configuration parameters correspond to different power information. That is, the power information can be determined based on the uplink configuration parameters, thereby sending accurate power information to the network device so that the network device can make more accurate scheduling decisions for switching uplink transmission waveforms.

[0332] In some embodiments, different uplink configuration parameters include at least one of the following: one or more groups of uplink configuration parameters pre-configured by the network device; one or more groups of pre-defined uplink configuration parameters; one or more groups of uplink configuration parameters corresponding to power information pre-stored by the terminal.

[0333] In the above embodiment, the uplink configuration parameters can be pre-configured by the network device, pre-defined, or correspond to the power information pre-stored by the terminal. According to different situations, the uplink configuration parameters can be adaptively adopted from any of the above to improve communication efficiency.

[0334] In some embodiments, the power information is determined based on at least one of the following methods: based on the peak-to-average power ratio PAPR corresponding to different uplink configuration parameters pre-stored by the terminal; based on the maximum power fallback MPR value obtained after processing by the power amplifier (PA) of the terminal.

[0335] In the above embodiment, the power information can be determined based on at least one of PAPR and MPR, so as to achieve more accurate reporting of power information or faster reporting of power information, so that the network device can make scheduling decisions for switching the uplink transmission waveform more accurately or more efficiently.

[0336] In some embodiments, the power information includes at least one of the following: peak-to-average power ratio (PAPR) corresponding to different waveforms; PAPR difference corresponding to different waveforms; actual value of maximum power backoff (MPR) value corresponding to different waveforms; difference between actual MPR values ​​corresponding to different waveforms; actual value of maximum transmission power corresponding to different waveforms; difference between actual maximum transmission power values ​​corresponding to different waveforms; peak-to-average power ratio (PAPR) mapping value index corresponding to different waveforms; PAPR difference mapping value index corresponding to different waveforms; actual value mapping value index of maximum power backoff (MPR) value corresponding to different waveforms; difference mapping value index between actual MPR values ​​corresponding to different waveforms; actual value mapping value index of maximum transmission power corresponding to different waveforms; difference mapping value index between actual maximum transmission power values ​​corresponding to different waveforms.

[0337] In the above embodiment, the power information may include at least one of the above items, so that the network device can make a scheduling decision to switch the uplink transmission waveform more accurately according to the reported power information.

[0338] In some embodiments, the uplink configuration parameters include at least one of the following: waveform; bandwidth configuration; modulation mode.

[0339] In the above embodiment, the uplink configuration parameters may include at least one of the above items, so that the corresponding power information can be reported in response to various different combinations of uplink configuration parameters, thereby facilitating the network equipment to make waveform switching scheduling decisions more accurately in response to various different situations of uplink configuration parameters.

[0340] In some embodiments, the different waveforms include 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).

[0341] FIG5a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the embodiment of the present disclosure relates to a communication method, which includes:

[0342] In step S5101, the terminal 101 sends first information, where the first information is used to indicate the capability of the terminal. The first information includes power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH at full power.

[0343] The optional implementation of step S5101 can be found in S2101 of FIG. 2 , step S3101 of FIG. 3 , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 , which will not be described in detail here.

[0344] 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.

[0345] Step S5102: The network device 102 receives first information.

[0346] 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.

[0347] 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.

[0348] 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:

[0349] Step S5201: The network device sends system information.

[0350] Optional implementations of step S5201 can be found in S2102 of FIG. 2 , step S3102 of FIG. 3 , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 , which will not be described in detail here.

[0351] 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.

[0352] 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.

[0353] Optional implementations of step S5202 can be found in S2102 of FIG. 2 , step S3102 of FIG. 3 , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 , which will not be described in detail here.

[0354] 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.

[0355] Step S5203: 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.

[0356] The optional implementation of step S5203 can be found in S2101 of FIG. 2 , step S3101 of FIG. 3 , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 , which will not be described in detail here.

[0357] 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.

[0358] In step S5204, after receiving the first information, the network device sends second information, where the second information is used to schedule the terminal to use the second waveform to send the PUSCH.

[0359] Optional implementations of step S5204 can be found in S2104 of FIG. 2 , step S3104 of FIG. 3 , and other related parts of the embodiments involved in FIG. 2 and FIG. 3 , which will not be described in detail here.

[0360] 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.

[0361] The present disclosure also provides a communication method as follows:

[0362] In some embodiments, the terminal capability information reporting is enhanced to report the PAPR-related transmission power information corresponding to different waveforms CP-OFDM and DFT-s-OFDM when the terminal transmits PUSCH at full power.

[0363] In some embodiments, the first information may be terminal capability information.

[0364] In some embodiments, reporting may be sending.

[0365] In some embodiments, the information about the PAPR-related transmission power may be power information.

[0366] In some embodiments, power information is obtained through the PUSCH under different configurations. Because different PAPR characteristics are related to different transmission parameters, the terminal can calculate the PAPR under different reference configurations and / or the corresponding power backoff value MPR under the terminal's PA implementation structure through pre-stored or actual measurement, but without actually sending it over the air interface, and report it through the terminal capability information.

[0367] In some embodiments, configuration, transmission parameter, and reference configuration may all represent uplink configuration parameters.

[0368] In some embodiments, the following measurement / reporting configuration methods are included:

[0369] 1) The network pre-configures one or more reference configurations of channels, such as different MCSs and FDRAs;

[0370] 2) The protocol predefines a reference configuration for one or more groups of channels;

[0371] 3) The terminal pre-stores PAPR / MPR tables corresponding to different reference configurations, and the terminal decides to report part of them, for example, all MCSs corresponding to a reference statistical complementary cumulative distribution function (CCDF), such as 1% of a small bandwidth;

[0372] In some embodiments, the specific measured / reported quantity is at least one of the following:

[0373] 1) Actual values ​​of PAPR / ΔPAPR and MPR / ΔMPR for different waveforms;

[0374] 2) PAPR / ΔPAPR and MPR / ΔMPR mapping value indexes corresponding to different waveforms;

[0375] 3) Actual values ​​of PAPR / ΔPAPR and Pcmax / ΔPcmax corresponding to different waveforms;

[0376] 4) PAPR / ΔPAPR and Pcmax / ΔPcmax mapping value index corresponding to different waveforms;

[0377] 5) Actual values ​​of PAPR / ΔPAPR, MPR / ΔMPR, and Pcmax / ΔPcmax corresponding to different waveforms;

[0378] 6) PAPR / ΔPAPR, MPR / ΔMPR, and Pcmax / ΔPcmax mapping value indexes corresponding to different waveforms.

[0379] In some embodiments, new measurement reporting quantities are defined, such as ΔPAPR and ΔMPR, which correspond to the difference between PAPR or MPR under different waveforms, and ΔPcmax, which corresponds to the difference between Pcmax under different waveforms.

[0380] In some embodiments, the network receives reference terminal capability information reported by the terminal, and can obtain MPR and terminal PA fallback information under various reference conditions, and obtain specific information about the terminal PA implementation characteristics;

[0381] In some embodiments, the network determines the current actual MPR based on PA characteristic information according to the actual PHR report, which can be used more directly for dynamic wave shaping (DWS) decision making.

[0382] In some embodiments, the specific information of the PA implementation characteristics and the PA characteristic information may be PA related information.

[0383] In some embodiments, the reference terminal capability information may be first information.

[0384] 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.

[0385] 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.

[0386] 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.

[0387] 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 first information, and the first information is used to indicate the capabilities of the terminal, and the first information includes power information of different waveforms used by the terminal to send the physical uplink shared channel (PUSCH) at full power. Optionally, the transceiver module is used to perform the communication steps S2101 such as sending and / or receiving performed by terminal 101 in any of the above methods, which will not be repeated here.

[0388] Figure 6b is a structural diagram 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 the first information, and the first information is used to indicate the capability of the terminal. The first information includes power information of different waveforms used by the terminal to send the physical uplink shared channel PUSCH under full power. Optionally, the above-mentioned transceiver module is used to execute the communication steps S2101 such as sending and / or receiving performed by the terminal 101 in any of the above methods, which will not be 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 the first information.

[0389] 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.

[0390] 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.

[0391] 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.

[0392] 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.

[0393] 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.

[0394] 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.

[0395] 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.

[0396] 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.

[0397] 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.

[0398] The chip 7200 includes one or more processors 7201 , and the chip 7200 is configured to execute any of the above methods.

[0399] 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.

[0400] 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.

[0401] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0402] 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.

[0403] 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.

[0404] 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.

[0405] 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: First information is sent, where the first information is used to indicate power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH under full power.

2. The method according to claim 1, characterized in that The power information is determined based on an uplink configuration parameter of the PUSCH, where the uplink configuration parameter is used to indicate a parameter used to send the PUSCH.

3. The method according to claim 2, characterized in that The uplink configuration parameter includes at least one of the following: One or more groups of uplink configuration parameters pre-configured by the network device; One or more predefined groups of uplink configuration parameters; One or more groups of uplink configuration parameters corresponding to the power information pre-stored in the terminal.

4. The method according to any one of claims 1 to 3, characterized in that: The power information is determined based on at least one of the following methods: Determining based on the peak-to-average power ratios PAPR corresponding to different uplink configuration parameters pre-stored by the terminal; The maximum power back-off MPR value is determined based on the maximum power back-off MPR value obtained after processing by the power amplifier PA of the terminal.

5. The method according to any one of claims 1 to 4, characterized in that: The power information includes at least one of the following: Peak-to-average power ratio PAPR corresponding to different waveforms; PAPR difference corresponding to different waveforms The actual value of the maximum power back-off MPR value corresponding to different waveforms; The difference between the actual values ​​of MPR corresponding to different waveforms; Actual values ​​of maximum transmission power corresponding to different waveforms; The difference between the actual values ​​of the maximum transmission power corresponding to different waveforms; Peak-to-average power ratio PAPR mapping value index corresponding to different waveforms; PAPR difference mapping value index corresponding to different waveforms; The actual value mapping value index corresponding to the maximum power back-off MPR value of different waveforms; The difference mapping value index between the actual values ​​of MPR corresponding to different waveforms; The actual value mapping value index corresponding to the maximum transmission power of different waveforms; The difference mapping value index between the actual values ​​of the maximum transmission power of different waveforms.

6. The method according to any one of claims 1 to 5, characterized in that: The uplink configuration parameters include at least one of the following: Waveform; Bandwidth configuration; Modulation method.

7. The method according to any one of claims 1 to 5, characterized in that: The different waveforms include at least one of the following: Cyclic prefix orthogonal frequency division multiplexing CP-OFDM; Spread spectrum orthogonal frequency division multiplexing DFT-S-OFDM based on discrete Fourier transform.

8. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: Second information is received, where the second information is determined based on the first information, and the second information is used to schedule a waveform used for sending a PUSCH.

9. The method according to any one of claims 1 to 8, characterized in that: The method further comprises: Receive third information, where the third 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.

10. A communication method, characterized in that: The method comprises: First information is received, where the first information is used to indicate power information of different waveforms used by a terminal to send a physical uplink shared channel PUSCH under full power.

11. The method according to claim 10, characterized in that The power information is determined based on an uplink configuration parameter of the PUSCH.

12. The method according to claim 11, characterized in that The uplink configuration parameter includes at least one of the following: One or more groups of uplink configuration parameters pre-configured by the network device; One or more predefined groups of uplink configuration parameters; One or more groups of uplink configuration parameters corresponding to the power information pre-stored in the terminal.

13. The method according to any one of claims 10 to 12, characterized in that: The power information is determined based on at least one of the following methods: Determining based on the peak-to-average power ratios PAPR corresponding to different uplink configuration parameters pre-stored by the terminal; The maximum power back-off MPR value is determined based on the maximum power back-off MPR value obtained after processing by the power amplifier PA of the terminal.

14. The method according to any one of claims 10 to 13, characterized in that: The power information includes at least one of the following: Peak-to-average power ratio PAPR corresponding to different waveforms; The PAPR difference corresponding to different waveforms; The actual value of the maximum power back-off MPR value corresponding to different waveforms; The difference between the actual values ​​of MPR corresponding to different waveforms; Actual values ​​of maximum transmission power corresponding to different waveforms; The difference between the actual values ​​of the maximum transmission power corresponding to different waveforms; Peak-to-average power ratio PAPR mapping value index corresponding to different waveforms; Different indexes of PAPR difference mapping values ​​corresponding to different waveforms; The actual value mapping value index corresponding to the maximum power back-off MPR value of different waveforms; The difference mapping value index between the actual values ​​of MPR corresponding to different waveforms; The actual value mapping value index corresponding to the maximum transmission power of different waveforms; The difference mapping value index between the actual values ​​of the maximum transmission power of different waveforms.

15. The method according to any one of claims 10 to 14, characterized in that: The uplink configuration parameters include at least one of the following: Waveform; Bandwidth configuration; Modulation method.

16. The method according to any one of claims 10 to 14, characterized in that: The different waveforms include at least CP-OFDM and DFT-S-OFDM.

17. The method according to any one of claims 10 to 16, characterized in that: The method further comprises: Send second information, where the second information is determined based on the first information, and the second information is used to schedule a waveform used for sending a PUSCH.

18. The method according to any one of claims 10 to 17, characterized in that: The method further comprises: Send third information, where the third information includes conversion precoding information, where the conversion precoding information is used to indicate a waveform used to send message 3 during random access.

19. A communication method, characterized in that: The method comprises: The terminal sends first information, where the first information is used to indicate the capability of the terminal, and the first information includes power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH at full power; The network device receives the first information.

20. A communication method, characterized in that: The method comprises: The network device sends system information, where the system information includes configuration information, where the configuration information is used to instruct the terminal to use the first waveform; The terminal receives the system information, accesses the network device through a random access process, and uses the first waveform as the waveform of message 3 during the random access process; After the terminal accesses the network device, sending first information, where the first information is used to indicate power information of different waveforms used by the terminal to send a PUSCH under full power; After receiving the first information, the network device sends second information, where the second information is used to schedule the waveform used by the terminal to send the PUSCH as a second waveform; 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.

21. The method according to claim 20, characterized in that The method further includes: after the terminal accesses the network device, the terminal receives the fourth information, where the fourth information is used to indicate a waveform used by the terminal.

22. A terminal, characterized in that: include: The transceiver module is used to send first information, where the first information is used to indicate the capability of the terminal, and the first information includes power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH at full power.

23. A network device, characterized in that: include: The transceiver module is used to receive first information, where the first information is used to indicate the capability of the terminal, and the first information includes power information of different waveforms used by the terminal to send a physical uplink shared channel PUSCH at full power.

24. 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 9.

25. 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 10-18.

26. 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 7, and the network device is configured to implement the communication method according to any one of claims 8 to 14.

27. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 9 and 10 to 18.

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