Communication method and apparatus, and storage medium

Abstract

The present disclosure relates to a communication method and apparatus, and a storage medium. The communication method comprises: a terminal receives first information sent by a network device, the first information being used for indicating a modulation mode, and the modulation mode being quadrature amplitude modulation (QAM) or amplitude modulation (AM); the terminal maps a data bit sequence into a symbol sequence on the basis of the modulation mode; and the terminal sends the symbol sequence by means of a first waveform. In the embodiments of the present disclosure, the terminal can dynamically switch between QAM and AM, and can perform uplink transmission using a unified first waveform, thereby reducing the complexity and cost of a system.

Description

Communication method, device and storage medium Technical Field

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

[0002] The New Radio (NR) uplink (UL) supports two waveforms: Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) and Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM). Supporting both DFT-s-OFDM and CP-OFDM waveforms increases system complexity and cost.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a communication method, device, and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by a terminal. The method includes:

[0006] receiving first information sent by a network device, where the first information is used to indicate a modulation mode, where the modulation mode is quadrature amplitude modulation (QAM) or amplitude modulation (AM);

[0007] Mapping the data bit sequence into a symbol sequence according to the modulation mode;

[0008] The symbol sequence is transmitted via a first waveform.

[0009] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a network device. The method includes:

[0010] Sending first information to the terminal, where the first information is used to indicate a modulation mode, where the modulation mode is QAM or AM, and the modulation mode is used to map a data bit sequence into a symbol sequence;

[0011] The symbol sequence transmitted via the first waveform is received.

[0012] According to a third aspect of an embodiment of the present disclosure, a communication device is provided, including:

[0013] a transceiver module configured to receive first information sent by a network device, where the first information is used to indicate a modulation mode, and the modulation mode is QAM or AM;

[0014] a processing module, configured to map a data bit sequence into a symbol sequence according to the modulation mode;

[0015] The transceiver module is further configured to transmit the symbol sequence via a first waveform.

[0016] According to a fourth aspect of an embodiment of the present disclosure, a communication device is provided, including:

[0017] a transceiver module configured to send first information to a terminal, where the first information is used to indicate a modulation mode, where the modulation mode is QAM or AM, and the modulation mode is used to map a data bit sequence into a symbol sequence;

[0018] The transceiver module is further configured to receive the symbol sequence sent via the first waveform.

[0019] According to a fifth aspect of an embodiment of the present disclosure, a communication device is provided, including:

[0020] one or more processors;

[0021] The communication device is used to execute the communication method proposed in the first aspect or the second aspect.

[0022] According to a sixth aspect of an embodiment of the present disclosure, a communication system is proposed, including a terminal and a network device, wherein the terminal is configured to implement the communication method proposed in the first aspect, and the network device is configured to implement the communication method proposed in the second aspect.

[0023] According to a seventh aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method proposed in the first aspect or the second aspect.

[0024] According to an eighth aspect of an embodiment of the present disclosure, a computer program product is proposed, comprising a computer program and / or instructions, which, when executed by a communication device, implement the communication method proposed in the first aspect or the second aspect.

[0025] In the above embodiment, the terminal can dynamically switch between quadrature amplitude modulation and amplitude modulation, and can use a unified first waveform for uplink transmission, which can reduce the complexity and cost of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] FIG1 is a schematic diagram of an exemplary architecture of a communication system provided according to an embodiment of the present disclosure.

[0028] FIG2 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

[0029] FIG3 is a schematic diagram of an exemplary flow of a communication method provided according to an embodiment of the present disclosure.

[0030] FIG4 is a schematic diagram of an exemplary flow of a communication method provided according to an embodiment of the present disclosure.

[0031] FIG5 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

[0032] FIG6A is a schematic diagram of an exemplary structure of a communication device provided according to an embodiment of the present disclosure.

[0033] FIG6B is a schematic diagram of an exemplary structure of a communication device provided according to an embodiment of the present disclosure.

[0034] FIG7A is a schematic diagram of an exemplary structure of a communication device provided according to an embodiment of the present disclosure.

[0035] FIG7B is a schematic diagram of an exemplary structure of a chip provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] The embodiments of the present disclosure provide a communication method, device, and storage medium.

[0037] In a first aspect, an embodiment of the present disclosure provides a communication method, which is executed by a terminal. The method includes:

[0038] receiving first information sent by a network device, where the first information is used to indicate a modulation mode, where the modulation mode is quadrature amplitude modulation (QAM) or amplitude modulation (AM);

[0039] Mapping the data bit sequence into a symbol sequence according to the modulation mode;

[0040] The symbol sequence is transmitted via a first waveform.

[0041] In the above embodiment, the terminal can dynamically switch between quadrature amplitude modulation and amplitude modulation, and can use a unified first waveform for uplink transmission, which can reduce the complexity and cost of the system. Among them, amplitude modulation can obtain greater diversity gain and higher reliability in the Khatri-Rao domain, thereby achieving uplink coverage enhancement. The network equipment can dynamically indicate the modulation mode on the terminal side, for example, for a terminal located at the edge of the cell, it can be instructed to use amplitude modulation to achieve uplink coverage enhancement, for example, for a terminal located at the center of the cell, it can be instructed to use quadrature amplitude modulation to achieve high-speed uplink transmission.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the modulation mode is AM, symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, and b is a positive integer.

[0043] In the above embodiment, when the modulation mode is amplitude modulation, data bits of different states can be carried by different amplitudes.

[0044] In combination with some embodiments of the first aspect, in some embodiments, b is predefined or configured by the network device.

[0045] In the above embodiment, b can be predefined in the protocol or predefined by the terminal or configured by the network device. As an implementation method, the network device sends second information to the terminal, and the second information is used to configure b. If the network device does not configure b for the terminal, b can take a default value.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, mapping the data bit sequence into a symbol sequence according to the modulation mode includes:

[0047] Map each b data bit in the data bit sequence to N RF symbols, the N RF The amplitudes of the symbols are the same, the N RF Is a positive integer.

[0048] In the above embodiment, if the modulation mode is amplitude modulation, each b data bits are mapped to N RF The N RF The symbols carry the same data bits, so that the receiving end (network equipment) performs spatial filtering.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the N RF It is predefined or configured by the network device.

[0050] In the above embodiment, N RFIt can be predefined in the protocol or predefined by the terminal or configured by the network device. As an implementation method, the network device sends the second information to the terminal, and the second information is used to configure N RF If the network device does not configure N for the terminal RF , N RF You can use the default value.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, the N RF The amplitude of each symbol is one of N amplitudes that are predefined or configured by the network device, Alternatively, the N RF The amplitude of a symbol is one of the amplitudes in the constellation diagram, q(M) is the number of amplitudes in the constellation diagram, and M is the number of constellation points in the constellation diagram.

[0052] In the above embodiment, N RF The amplitude of each symbol is one of the predefined N amplitudes, or N RF The amplitude of each symbol is one of N amplitudes configured by the network device, or N RF The amplitude of each symbol is one of the amplitudes in the constellation diagram, so amplitude modulation can be performed based on a non-constellation diagram method (for example, based on predefined N amplitudes or N amplitudes configured by a network device) or a constellation diagram based method (for example, based on the amplitude in the QAM constellation diagram).

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the N RF Each symbol in the N symbols is determined from the constellation symbol corresponding to the amplitude in the constellation diagram; or, the N RF The phase of each symbol in the symbols is a random phase in [0, 2π).

[0054] In the above embodiment, N RF The phase of each symbol in N symbols can be determined randomly, or RF Each symbol in the N symbols can be a constellation symbol in the QAM constellation diagram. RF The phase of each of the symbols may be the same or different.

[0055] In combination with some embodiments of the first aspect, in some embodiments, the first information is carried in downlink control information (DCI) including uplink scheduling permission.

[0056] In combination with some embodiments of the first aspect, in some embodiments, the data bit sequence is a code block sequence after channel coding.

[0057] In combination with some embodiments of the first aspect, in some embodiments, the first waveform is a CP-OFDM waveform.

[0058] In the above embodiment, the terminal can dynamically switch between orthogonal amplitude modulation and amplitude modulation, and can use a unified CP-OFDM waveform for uplink transmission, thereby using one waveform to solve the uplink coverage problem, and thus avoiding the problem of supporting two waveforms caused by the introduction of the DFT-s-OFDM waveform.

[0059] In a second aspect, an embodiment of the present disclosure provides a communication method, which is performed by a network device. The method includes:

[0060] Sending first information to the terminal, where the first information is used to indicate a modulation mode, where the modulation mode is QAM or AM, and the modulation mode is used to map a data bit sequence into a symbol sequence;

[0061] The symbol sequence transmitted via the first waveform is received.

[0062] In combination with some embodiments of the second aspect, in some embodiments, the modulation mode is AM, symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, and b is a positive integer.

[0063] In combination with some embodiments of the second aspect, in some embodiments, b is predefined or configured by the network device.

[0064] In conjunction with some embodiments of the second aspect, in some embodiments, each b data bits in the data bit sequence is mapped to N RF symbols, the N RF The amplitudes of the symbols are the same, the N RF Is a positive integer.

[0065] In conjunction with some embodiments of the second aspect, in some embodiments, the N RF It is predefined or configured by the network device.

[0066] In conjunction with some embodiments of the second aspect, in some embodiments, the N RF The amplitude of each symbol is one of N amplitudes that are predefined or configured by the network device, Alternatively, the N RF The amplitude of a symbol is one of the amplitudes in the constellation diagram, q(M) is the number of amplitudes in the constellation diagram, and M is the number of constellation points in the constellation diagram.

[0067] In conjunction with some embodiments of the second aspect, in some embodiments, the N RFEach symbol in the N symbols is determined from the constellation symbol corresponding to the amplitude in the constellation diagram; or, the N RF The phase of each symbol in the symbols is a random phase in [0, 2π).

[0068] In combination with some embodiments of the second aspect, in some embodiments, the first information is carried in a DCI including an uplink scheduling grant.

[0069] In combination with some embodiments of the second aspect, in some embodiments, the data bit sequence is a code block sequence after channel coding.

[0070] In combination with some embodiments of the second aspect, in some embodiments, the first waveform is a CP-OFDM waveform.

[0071] In a third aspect, an embodiment of the present disclosure provides a communication device, including:

[0072] a transceiver module configured to receive first information sent by a network device, where the first information is used to indicate a modulation mode, and the modulation mode is QAM or AM;

[0073] a processing module, configured to map a data bit sequence into a symbol sequence according to the modulation mode;

[0074] The transceiver module is further configured to transmit the symbol sequence via a first waveform.

[0075] In a fourth aspect, an embodiment of the present disclosure provides a communication device, including:

[0076] a transceiver module configured to send first information to a terminal, where the first information is used to indicate a modulation mode, where the modulation mode is QAM or AM, and the modulation mode is used to map a data bit sequence into a symbol sequence;

[0077] The transceiver module is further configured to receive the symbol sequence sent via the first waveform.

[0078] In a fifth aspect, an embodiment of the present disclosure proposes a communication device, comprising: one or more processors; wherein the communication device is used to execute the method described in the optional implementation manner of the first aspect or the second aspect.

[0079] In a sixth aspect, an embodiment of the present disclosure proposes a communication system, comprising a terminal and a network device, wherein the terminal is configured to implement the method described in the optional implementation manner of the first aspect, and the network device is configured to implement the method described in the optional implementation manner of the second aspect.

[0080] In a seventh aspect, an embodiment of the present disclosure proposes a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the method described in the optional implementation of the first aspect or the second aspect.

[0081] In an eighth aspect, an embodiment of the present disclosure proposes a computer program product, comprising a computer program and / or instructions, which, when executed by a communication device, implement the method described in the optional implementation manner of the first aspect or the second aspect.

[0082] In a ninth 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 or second aspect.

[0083] It is understandable that the above-mentioned communication devices, communication equipment, communication systems, storage media, computer program products, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0084] The embodiments of the present disclosure provide a communication method, apparatus, and storage medium. In some embodiments, the terms communication method and uplink transmission method can be used interchangeably.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0090] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0098] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0099] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or 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)", etc.

[0100] In some embodiments, "terminal" or "terminal device" may be referred to as "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.

[0101] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0102] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0103] 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.

[0104] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0105] 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.

[0106] In some embodiments, the network device 102 includes, for example, an access network device. The access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0107] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0108] 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.

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

[0112] Multiple antenna technology, also known as multiple input multiple output (MIMO) technology, can provide spatial diversity and spatial multiplexing. Spatial diversity can significantly improve the reliability of communication links, while spatial multiplexing can greatly increase the spectral efficiency of communication links. MIMO technology is one of the important physical layer transmission technologies, including 4G LTE systems, 5G NR systems, and even future wireless communication systems (such as 6G communication systems).

[0113] Currently, multi-antenna arrays are primarily uniform arrays, such as the common one-dimensional uniform linear array (ULA) and two-dimensional uniform planar array (UPA). In addition to uniform arrays, there are also sparse arrays. The individual antenna elements (element groups) in a sparse array are non-uniformly distributed, such as the common minimum redundancy array (MRA) and Golomb array. Compared to uniform arrays, sparse arrays have the following advantages: 1) With the same number of antenna elements, sparse arrays can achieve a larger antenna aperture, thereby obtaining higher spatial resolution; 2) With the same antenna aperture, sparse arrays have fewer antenna elements, fewer RF channels, lower power consumption, and less mutual coupling between antennas.

[0114] In cellular communication systems, uplink coverage has always been a bottleneck due to the limited transmit power of user equipment (UE). To enhance uplink coverage, the 4G LTE system introduced the DFT-s-OFDM waveform. This waveform has a low peak-to-average power ratio (PAPR), allowing for a smaller power backoff during power amplification to achieve higher transmit power. Therefore, the DFT-s-OFDM waveform continues to be used in 5G NR systems.

[0115] The UL of 5G NR supports both CP-OFDM and DFT-s-OFDM waveforms, and switches between the two waveforms. For example, when the UE is at the edge of the cell, the DFT-s-OFDM waveform is used; when the UE is at the center of the cell, the CP-OFDM waveform is used.

[0116] However, supporting both DFT-s-OFDM and CP-OFDM waveforms simultaneously has certain drawbacks: 1) DFT-s-OFDM is not well-suited for multi-layer transmission, whether for single-user or multi-user. Currently, the DFT-s-OFDM waveform only supports single-layer transmission. 2) The DFT-s-OFDM waveform requires specialized processing distinct from the CP-OFDM waveform, such as operations related to the Demodulation Reference Signal (DMRS) and the Phase Tracking Reference Signal (PTRS). This significantly increases system complexity and cost. Therefore, it is necessary to consider unified waveforms and operations.

[0117] 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, which includes:

[0118] Step S2101: The network device sends first information to the terminal, where the first information is used to indicate a modulation mode.

[0119] In some embodiments, the terminal receives the first information, for example, the terminal receives the first information sent by the network device.

[0120] In some embodiments, the first information is used to indicate a modulation mode, which is quadrature amplitude modulation (QAM) or amplitude modulation (AM). The modulation mode is used to map a data bit sequence into a symbol sequence.

[0121] In some embodiments, the first information indicating the modulation mode may be indicated directly or indirectly. As an implementation method, the first information may be 1 bit. For example, if the bit is "0", it indicates QAM, and if the bit is "1", it indicates AM. As an implementation method, if the network device does not send the first information to the terminal, QAM is indicated by default. If the network device sends the first information to the terminal, AM is indicated. The embodiments of the present disclosure do not limit the indication method of the first information. In some embodiments, the name of the first information is not limited, and it may be, for example, "modulation indicator (MI)", "modulation indication information", etc.

[0122] In some embodiments, the first information is carried in a DCI including an uplink scheduling grant. Optionally, a first indication field is added to the DCI including the uplink scheduling grant, the first indication field including 1 bit for indicating a modulation mode.

[0123] In some embodiments, step S2101 is an optional step. When the terminal does not receive the first information sent by the network device, the terminal may map the data bit sequence into a symbol sequence according to a modulation scheme of QAM or AM, or may map the data bit sequence into a symbol sequence according to a default value of the modulation scheme, or may map the data bit sequence into a symbol sequence according to a most recently used modulation scheme.

[0124] Step S2102: The terminal maps the data bit sequence into a symbol sequence according to the modulation mode.

[0125] In some embodiments, the terminal modulates the data bit sequence according to the modulation mode indicated by the first information, that is, maps the data bit sequence into a symbol sequence. Optionally, the data bit sequence is a code block sequence after channel coding.

[0126] In some embodiments, if the modulation mode is QAM, the terminal performs constellation modulation on the data bit sequence, thereby mapping the data bit sequence into a constellation symbol sequence.

[0127] In some embodiments, if the modulation mode is AM, the terminal performs amplitude modulation on the data bit sequence, thereby mapping the data bit sequence into a symbol sequence. Symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, where b is a positive integer. For example, there are 2 b data bits in total. b Different states, corresponding to 2 b Alternatively, b may be predefined or configured by the network device. For example, b may be predefined in the protocol or predefined by the terminal.

[0128] In some embodiments, if the modulation mode is AM, the terminal maps each b data bit in the data bit sequence to N RF symbols, the N RF The amplitudes of the symbols are the same, N RF is a positive integer. Since N RF The amplitudes of the symbols are the same, so in some embodiments, N RF It can be called the repetition factor (RF). RF It can be predefined or configured by the network device. For example, N is predefined in the protocol. RF Or the terminal pre-defines N RF .

[0129] In some embodiments, amplitude modulation can be performed based on a non-constellation method or a constellation method, that is, mapping each b data bit in the data bit sequence to N RF symbols.

[0130] (1) Methods based on non-constellation diagrams

[0131] First, N amplitudes are predefined or configured by the network device. Optionally, N amplitudes are predefined in the protocol or the terminal predefines N amplitudes. RF When N RF The amplitude of each symbol is one of the N amplitudes above, In particular, if N is an integer power of 2, then b≤log2N. Therefore, every Data bits are mapped to N RF Symbols, N RF The amplitude of each symbol is the same, that is, b data bits are mapped to one amplitude. Optionally, each b data bits are mapped to 2 of the N amplitudes above. b One of the ranges.

[0132] Taking N=8 as an example, assuming that 8 different amplitudes are predefined, and a maximum of 3 data bits are mapped to one of the 8 amplitudes, in one implementation, every 3 data bits can be mapped to one of the 8 amplitudes, and in one implementation, every 2 data bits can be mapped to one of the 4 amplitudes (4 of the 8 amplitudes). Taking N=16 as an example, assuming that the network device configures 16 different amplitudes for the terminal, in one implementation, every 4 data bits can be mapped to one of the 16 amplitudes, in one implementation, every 3 data bits can be mapped to one of the 8 amplitudes (8 of the 16 amplitudes), and in one implementation, every 2 data bits can be mapped to one of the 4 amplitudes (4 of the 16 amplitudes).

[0133] In some embodiments, N RF The amplitude of a symbol is determined by the mapping relationship between b data bits and amplitude. RF The phase of each of the symbols may be the same or different.

[0134] In some embodiments, N RF The phase of each symbol in the symbols is a random phase in [0, 2π). RF The phases of the symbols are independent of each other. RF The phase of each symbol is a random phase uniformly distributed in [0, 2π).

[0135] In some embodiments, N different amplitudes are predefined or configured by the network device to determine The amplitude corresponding to the data bit in N amplitudes is recorded as amplitude one. According to amplitude one and the random phase uniformly distributed in [0, 2π), N RF symbols, thereby mapping b data bits to N RF symbols.

[0136] (2) Constellation diagram-based method

[0137] Based on the amplitude in the constellation diagram, b data bits are mapped to N RF When N RF The amplitude of each symbol is one of the amplitudes in the above constellation diagram, q(M) is the number of amplitudes in the constellation diagram, and M is the number of constellation points in the constellation diagram. For example, for a QAM constellation with an order (i.e., the number of constellation points) of M, there are q(M) different amplitudes. Taking 16QAM as an example, there are q(16) = 3 different amplitudes. Taking 64QAM as an example, there are q(64) = 9 different amplitudes. In particular, if q(M) is an integer power of 2, then b ≤ log2q(M). Therefore, every at most bits are mapped to N RF Symbols, N RF The amplitude of each symbol is the same, that is, b data bits are mapped to one amplitude. Optionally, each b data bit is mapped to 2 of the q(M) amplitudes of the QAM constellation. b One of the ranges.

[0138] Taking 64QAM as an example, there are q(64)=9 different amplitudes in total, and a maximum of 3 data bits are mapped to one amplitude. For example, every 3 data bits can be mapped to one amplitude among 8 amplitudes (8 amplitudes in the 64QAM constellation diagram), or every 2 data bits can be mapped to one amplitude among 4 amplitudes (4 amplitudes in the 64QAM constellation diagram).

[0139] In some embodiments, N RF The amplitude of a symbol is determined by the mapping relationship between b data bits and amplitude. RF The phase of each of the symbols may be the same or different.

[0140] In some embodiments, N RF The amplitude of the symbol is recorded as amplitude one, N RF Each of the symbols is determined from the constellation symbol (constellation point) corresponding to amplitude one in the constellation diagram. RF Each of the symbols is independently randomly selected from the constellation symbols with amplitude one in the QAM constellation diagram.

[0141] In some embodiments, N RF The phase of each symbol in the symbols is a random phase in [0, 2π). RF The phases of the symbols are independent of each other. RF The phase of each symbol is a random phase uniformly distributed in [0, 2π).

[0142] In the above embodiment, N RF The phase of each symbol in N symbols can be determined randomly, or RF Each of the symbols may be a constellation symbol in a QAM constellation diagram.

[0143] In some embodiments, based on the amplitude in the QAM constellation diagram, the The amplitude corresponding to the data bits in the QAM constellation diagram is amplitude one, and N constellation symbols with amplitude one in the QAM constellation diagram are independently randomly selected. RF constellation symbols, thereby mapping b data bits to N RF symbols.

[0144] In some embodiments, based on the amplitude in the QAM constellation diagram, the The amplitude of the data bit in the QAM constellation diagram is amplitude 1. According to amplitude 1 and the random phase uniformly distributed in [0, 2π), N is determined. RF symbols, thereby mapping b data bits to N RF In the above embodiment, only the amplitude state in the QAM constellation diagram is used.

[0145] In some embodiments, the network device sends second information to the terminal, where the second information includes at least one of the following:

[0146] b;

[0147] N RF ;

[0148] N amplitudes.

[0149] Optionally, the second information includes b, that is, the network device configures b for the terminal through the second information. If the network device does not configure b for the terminal, b can take a default value, such as or These correspond to the above non-constellation diagram-based method and constellation diagram-based method, respectively. Optionally, the second information does not include b. For example, when b is predefined or takes a default value, the second information does not include b.

[0150] Optionally, the second information includes N RF , that is, the network device configures N for the terminal through the second information RFIf the network device is not configured for the terminal RF , then N RF The default value can be used. Optionally, the second information does not include N RF , for example, when N RF is predefined or takes the default value, the second information does not include N RF .

[0151] Optionally, the second information includes N amplitudes, i.e., the network device configures N amplitudes for the terminal through the second information. If the network device does not configure N amplitudes for the terminal, the N amplitudes may take default values. Optionally, the second information does not include N amplitudes, for example, when the N amplitudes are predefined or take default values, or when the terminal performs amplitude modulation based on a constellation diagram, the second information does not include N amplitudes.

[0152] Optionally, the second information may be included in the first information, or the first information and the second information may be independent information. Optionally, the second information is carried in the DCI containing the uplink scheduling grant. Optionally, a second indication field is added to the DCI containing the uplink scheduling grant for configuring b. Optionally, a third indication field is added to the DCI containing the uplink scheduling grant for configuring N. RF .

[0153] Step S2103: The terminal sends a symbol sequence using a first waveform.

[0154] In some embodiments, the first waveform is a CP-OFDM waveform.

[0155] In some embodiments, a network device receives a sequence of symbols transmitted via a first waveform.

[0156] In some embodiments, the network device detects (equalizes) the received signal of the above symbol sequence. RF The received signal of N symbols is filtered in the spatial domain and transformed into Khatri-Rao domain. RF The equivalent transmitted signal of each symbol in Khatri-Rao domain is detected.

[0157] For ease of description, taking b data bits as an example, the transmission from the terminal to the network device can be expressed as the following formula: i =H i x i +n i , i=1,…,N RF

[0158] in, N RF The transmitted signal corresponding to the i-th symbol vector in the symbol vectors contains Nt Layer, N t is the number of transmitting antennas of the terminal, and the average power of the signal sent by the terminal satisfies to Indicates N RF The power of the symbol vector at each layer, is the channel matrix of the uplink channel, N r is the number of antenna elements in the sparse array used by the network device for reception; i , are the signal and noise of the corresponding i-th symbol vector received by the network device, and the average power of the noise received by the network device satisfies is the power of the noise, N r ×N r The unit array.

[0159] For AM modulation, since N RF The symbols have the same amplitude and carry the same data bits. The network equipment RF The received signal vector (i.e. y i ) performs spatial filtering to transform the signal into Khatri-Rao domain. Similarly, the filtered signal can be expressed as is the equivalent received signal in Khatri-Rao domain, is the equivalent channel matrix in Khatri-Rao domain, For the equivalent signaling in Khatri-Rao domain, is the equivalent noise in Khatri-Rao domain. Based on this, Test. Compared with H i , i=1,...,N RF , There can be more rows (the number of rows depends on the type and parameters of the sparse array of the network equipment), corresponding to more virtual receive antennas in the Khatri-Rao domain. Obviously, this will bring greater diversity gain, thereby improving uplink coverage.

[0160] In the above embodiment, the terminal can dynamically switch between orthogonal amplitude modulation and amplitude modulation, and can use a unified first waveform for uplink transmission, which can reduce the complexity and cost of the system. According to an optional implementation method, amplitude modulation can obtain greater diversity gain and higher reliability in the Khatri-Rao domain, and achieve uplink coverage enhancement under a unified CP-OFDM waveform. Compared to the uplink (UL) supporting both CP-OFDM and DFT-s-OFDM waveforms, the embodiment of the present disclosure can solve the uplink coverage problem through a single CP-OFDM waveform, avoiding the problems caused by the introduction of the DFT-s-OFDM waveform.

[0161] Network equipment can dynamically indicate the modulation method to use on the terminal side. For example, for terminals at the cell edge, it can be instructed to use amplitude modulation to achieve enhanced uplink coverage. For example, for terminals at the cell center, it can be instructed to use orthogonal amplitude modulation to achieve high-speed uplink transmission. The antenna array on the network equipment side is a sparse array, which can achieve the same effect as a uniform array with more antennas using fewer receive antennas, thereby saving costs.

[0162] 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", "codepoint", "bit", "data", and "chip" can be used interchangeably.

[0163] In some embodiments, the terms "downlink", "physical downlink", etc. can be used interchangeably.

[0164] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI" and the like may be used interchangeably.

[0165] 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.

[0166] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0167] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2103. For example, step S2102 may be implemented as an independent embodiment, step S2101 + step S2102 may be implemented as an independent embodiment, and step S2102 + step S2103 may be implemented as an independent embodiment, but the present disclosure is not limited thereto.

[0168] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0169] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0170] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , the embodiment of the present disclosure relates to a communication method, which is executed by a terminal and includes:

[0171] Step S3101: Obtain first information.

[0172] 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.

[0173] In some embodiments, the first information is used to indicate a modulation mode, which is QAM or AM. The modulation mode is used to map a data bit sequence into a symbol sequence.

[0174] In some embodiments, the terminal receives the first information sent by the network device, but is not limited thereto and may also receive the first information sent by other entities.

[0175] In some embodiments, the first information is carried in a DCI including an uplink scheduling grant.

[0176] In some embodiments, step S3101 is omitted. For example, when the terminal does not obtain the first information, the data bit sequence is mapped into a symbol sequence according to a modulation scheme of QAM and AM, or according to a default value of the modulation scheme, or according to a most recently used modulation scheme.

[0177] Step S3102: Map the data bit sequence into a symbol sequence according to the modulation mode.

[0178] 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.

[0179] In some embodiments, the data bit sequence is a code block sequence that has been channel-coded.

[0180] In some embodiments, when the modulation mode is AM, symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, where b is a positive integer.

[0181] In some embodiments, b is predefined or configured by the network device (or other entity).

[0182] In some embodiments, for an AM modulation mode, each b data bit in the data bit sequence is mapped to N RF Symbols, N RF The amplitudes of the symbols are the same, N RF Is a positive integer.

[0183] In some embodiments, N RF Predefined or configured by a network device (or other entity).

[0184] In some embodiments, N RF The amplitude of each symbol is one of the predefined N amplitudes or N RF The amplitude of each symbol is one of N amplitudes configured by the network device (or other entity),

[0185] In some embodiments, N RF The amplitude of a symbol is one of the amplitudes in the constellation diagram, q(M) is the number of amplitudes in the constellation diagram, and M is the number of constellation points contained in the constellation diagram.

[0186] In some embodiments, N RF Each of the symbols is determined from the constellation symbol of the corresponding amplitude in the constellation diagram.

[0187] In some embodiments, N RFThe phase of each symbol in the symbols is a random phase in [0, 2π).

[0188] In some embodiments, second information sent by the network device is received, and the second information includes at least one of the following: b; N RF ; N amplitudes.

[0189] Step S3103: Send a symbol sequence via a first waveform.

[0190] 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.

[0191] In some embodiments, the first waveform is a CP-OFDM waveform.

[0192] FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a communication method, which is executed by a network device and includes:

[0193] Step S4101, sending the first information.

[0194] 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.

[0195] In some embodiments, the network device sends the first information to the terminal. Optionally, the first information is carried in a DCI containing an uplink scheduling grant.

[0196] In some embodiments, the first information is used to indicate a modulation mode, which is QAM or AM, and the modulation mode is used to map a data bit sequence into a symbol sequence. Optionally, the data bit sequence is a code block sequence after channel coding.

[0197] In some embodiments, when the modulation mode is AM, symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, where b is a positive integer.

[0198] In some embodiments, b is predefined or configured by the network device (or other entity).

[0199] In some embodiments, for AM modulation, each b data bits in the data bit sequence is mapped to N RF Symbols, N RF The amplitudes of the symbols are the same, N RF Is a positive integer.

[0200] In some embodiments, N RFPredefined or configured by a network device (or other entity).

[0201] In some embodiments, N RF The amplitude of each symbol is one of the predefined N amplitudes or N RF The amplitude of each symbol is one of N amplitudes configured by the network device (or other entity),

[0202] In some embodiments, N RF The amplitude of a symbol is one of the amplitudes in the constellation diagram, q(M) is the number of amplitudes in the constellation diagram, and M is the number of constellation points contained in the constellation diagram.

[0203] In some embodiments, N RF Each of the symbols is determined from the constellation symbol of the corresponding amplitude in the constellation diagram.

[0204] In some embodiments, N RF The phase of each symbol in the symbols is a random phase in [0, 2π).

[0205] In some embodiments, step S4101 is omitted. For example, when the network device does not send the first information, the terminal can map the data bit sequence into a symbol sequence according to a modulation method of QAM and AM, or according to a default value of the modulation method, or according to a most recently used modulation method.

[0206] In some embodiments, the network device sends second information to the terminal, and the second information includes at least one of the following: b; N RF ; N amplitudes.

[0207] Step S4102: Receive a symbol sequence sent via a first waveform.

[0208] The optional implementation of step S4102 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.

[0209] In some embodiments, the first waveform is a CP-OFDM waveform.

[0210] In some embodiments, the network device detects (equalizes) the received signal of the above symbol sequence. RF The received signal of N symbols is filtered in the spatial domain and transformed into Khatri-Rao domain. RF The equivalent transmitted signal of each symbol in Khatri-Rao domain is detected.

[0211] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0212] FIG5 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the communication method includes:

[0213] Step S5101: The base station configures a modulation indicator (MI) for the UE.

[0214] Optionally, the MI value can be QAM or AM. MI configuration can be accomplished through at least one of DCI, MAC Control Element (MAC CE), and Radio Resource Control (RRC) signaling. For example, an MI field containing one bit is added to the DCI containing the uplink scheduling grant.

[0215] Step S5102: The base station configures a repetition factor (RF) for the UE.

[0216] For MI=AM, the base station configures the repetition factor (RF) for the UE, and the value of RF is recorded as N RF The RF configuration can be completed through at least one of DCI, MAC CE, and RRC signaling. For example, an RF field is added to the DCI containing the uplink scheduling grant.

[0217] Optionally, steps S5101 and S5102 may be performed simultaneously or in a swapped order. Optionally, the MI and RF may be carried in the same information / message / signaling, for example, the MI and RF may be included in a DCI containing an uplink scheduling grant. Optionally, the MI and RF may be configured independently.

[0218] Optionally, step S5102 is omitted. For example, for MI=QAM, the base station does not configure RF for the UE. For another example, RF may be predefined by a protocol.

[0219] Step S5103: The UE maps the data bit sequence into a symbol sequence according to the MI.

[0220] The data bit sequence is a code block sequence after channel coding.

[0221] For MI=QAM, the UE performs constellation mapping (QAM) on the data bit sequence, that is, mapping the data bits into constellation symbols.

[0222] For MI=AM, the UE performs amplitude modulation (AM) on the data bit sequence, that is, different amplitudes of the symbol correspond to different states of the data bit.

[0223] For a QAM constellation with an order (i.e., the number of constellation points) of M, there are q(M) different amplitudes. Taking 16QAM as an example, there are q(16) = 3 different amplitudes. Taking 64QAM as an example, there are q(64) = 9 different amplitudes. In amplitude modulation, each maximum Data bits are mapped to N RF Symbols, N RF The amplitudes of the symbols are the same (denoted as amplitude 1). Specifically, the amplitude 1 depends on the mapping relationship between data bits and amplitudes.

[0224] Optionally, N RF Each of the symbols is independently randomly selected from the constellation symbols with amplitude one in the QAM constellation diagram.

[0225] Optionally, N RF The phases of the symbols are independent, and the phase of each symbol is a random phase uniformly distributed in [0, 2π).

[0226] Step S5104: The UE sends a symbol sequence using a first waveform.

[0227] Optionally, the first waveform is a CP-OFDM waveform.

[0228] For MI=QAM or MI=AM, the UE sends a symbol sequence using a CP-OFDM waveform.

[0229] Step S5105: The base station detects (equalizes) the signal sent by the UE.

[0230] The communication method proposed in the embodiments of the present disclosure can be used in scenarios where the antenna array of a network device is a sparse array. Adaptive uplink transmission is achieved based on the sparse array. Amplitude modulation can achieve greater diversity gain and higher reliability in the Khatri-Rao domain. Dynamic switching between QAM and AM modulation modes under a unified CP-OFDM waveform can enhance uplink coverage. For example, amplitude modulation is used for UEs located at the edge of a cell. For example, for terminals located at the center of a cell, quadrature amplitude modulation can be used to achieve high-speed uplink transmission. UEs only need to support the CP-OFDM waveform.

[0231] 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.

[0232] 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.

[0233] 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.

[0234] Figure 6A is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure. As shown in Figure 6A, the communication device 6100 may include: at least one of a transceiver module 6101 and a processing module 6102. In some embodiments, the transceiver module 6101 is used to receive first information sent by a network device, where the first information indicates a modulation mode, which is QAM or AM. The processing module 6102 is used to map a data bit sequence into a symbol sequence based on the modulation mode. The transceiver module 6101 is also used to send the symbol sequence via a first waveform. Optionally, the transceiver module 6101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal in any of the above methods (such as step S2103, but not limited thereto), which are not further described here. Optionally, the processing module 6102 is used to perform at least one of the other steps (such as step S2102, but not limited thereto) performed by the terminal in any of the above methods, which are not further described here.

[0235] Figure 6B is a structural diagram of a communication device proposed in an embodiment of the present disclosure. As shown in Figure 6B, the communication device 6200 may include: at least one of a transceiver module 6201, a processing module 6202, etc. In some embodiments, the transceiver module 6201 is used to send first information to the terminal, and the first information is used to indicate a modulation mode, and the modulation mode is QAM or AM, and the modulation mode is used to map a data bit sequence into a symbol sequence. The transceiver module 6201 is also used to receive the symbol sequence sent via the first waveform. Optionally, the transceiver module 6201 is used to perform at least one of the communication steps such as sending and / or receiving (for example, step S2101, but not limited to this) performed by the network device in any of the above methods, which will not be repeated here. Optionally, the processing module 6202 is used to perform at least one of the other steps performed by the network device in any of the above methods, which will not be repeated here.

[0236] 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.

[0237] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0238] 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 (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 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.

[0239] As shown in FIG7A , the communication device 7100 includes one or more processors 7101. The processor 7101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control a communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 7100 is used to perform any of the above methods.

[0240] 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.

[0241] 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 at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101 and step S2103, but not limited thereto), and the processor 7101 performs at least one of the other steps (for example, step S2102, but not limited thereto).

[0242] 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.

[0243] 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.

[0244] 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.

[0245] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0246] The chip 7200 includes one or more processors 7201 , and the chip 7200 is configured to execute any of the above methods.

[0247] 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.

[0248] In some embodiments, the interface circuit 7202 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, step S2103, but not limited to this), and the processor 7201 performs at least one of the other steps (for example, step S2102, but not limited to this).

[0249] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0250] 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.

[0251] 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.

[0252] 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.

[0253] 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: Executed by a terminal, the method includes: receiving first information sent by a network device, where the first information is used to indicate a modulation mode, where the modulation mode is quadrature amplitude modulation (QAM) or amplitude modulation (AM); Mapping the data bit sequence into a symbol sequence according to the modulation mode; The symbol sequence is transmitted via a first waveform.

2. The method according to claim 1, characterized in that The modulation mode is AM, symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, and b is a positive integer.

3. The method according to claim 2, characterized in that The b is predefined or configured by the network device.

4. The method according to claim 2 or 3, characterized in that Mapping the data bit sequence into a symbol sequence according to the modulation mode includes: Map each b data bit in the data bit sequence to N RF symbols, the N RF The amplitudes of the symbols are the same, the N RF Is a positive integer.

5. The method according to claim 4, characterized in that The N RF It is predefined or configured by the network device.

6. The method according to claim 4 or 5, characterized in that The N RF The amplitude of each symbol is one of N amplitudes that are predefined or configured by the network device, or, The N RF The amplitude of a symbol is one of the amplitudes in the constellation diagram, q(M) is the number of amplitudes in the constellation diagram, and M is the number of constellation points in the constellation diagram.

7. The method according to any one of claims 4 to 6, characterized in that The N RF Each of the symbols is determined from the constellation symbols corresponding to the amplitude in the constellation diagram; or, The N RF The phase of each symbol in the symbols is a random phase in [0, 2π).

8. The method according to any one of claims 1 to 7, characterized in that The first information is carried in downlink control information DCI including an uplink scheduling grant.

9. The method according to any one of claims 1 to 8, characterized in that The data bit sequence is a code block sequence after channel coding.

10. The method according to any one of claims 1 to 9, characterized in that The first waveform is a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform.

11. A communication method, characterized in that: Executed by a network device, the method includes: Sending first information to the terminal, where the first information is used to indicate a modulation mode, where the modulation mode is QAM or AM, and the modulation mode is used to map a data bit sequence into a symbol sequence; The symbol sequence transmitted via the first waveform is received.

12. The method according to claim 11, characterized in that The modulation mode is AM, symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, and b is a positive integer.

13. The method according to claim 12, characterized in that The b is predefined or configured by the network device.

14. The method according to claim 12 or 13, characterized in that Each b data bit in the data bit sequence is mapped to N RF symbols, the N RF The amplitudes of the symbols are the same, the N RF Is a positive integer.

15. The method according to claim 14, characterized in that The N RF It is predefined or configured by the network device.

16. The method according to claim 14 or 15, characterized in that The N RF The amplitude of each symbol is one of N amplitudes that are predefined or configured by the network device, or, The N RF The amplitude of a symbol is one of the amplitudes in the constellation diagram, q(M) is the number of amplitudes in the constellation diagram, and M is the number of constellation points in the constellation diagram.

17. The method according to any one of claims 14 to 16, characterized in that: The N RF Each of the symbols is determined from the constellation symbols corresponding to the amplitude in the constellation diagram; or, The N RF The phase of each symbol in the symbols is a random phase in [0, 2π).

18. The method according to any one of claims 11 to 17, characterized in that: The first information is carried in a DCI including an uplink scheduling grant.

19. The method according to any one of claims 11 to 18, characterized in that The data bit sequence is a code block sequence after channel coding.

20. The method according to any one of claims 11 to 19, characterized in that: The first waveform is a CP-OFDM waveform.

21. A communication device, characterized in that: include: a transceiver module configured to receive first information sent by a network device, where the first information is used to indicate a modulation mode, and the modulation mode is QAM or AM; a processing module, configured to map a data bit sequence into a symbol sequence according to the modulation mode; The transceiver module is further configured to send the symbol sequence via a first waveform.

22. A communication device, characterized in that: include: a transceiver module configured to send first information to a terminal, where the first information is used to indicate a modulation mode, where the modulation mode is QAM or AM, and the modulation mode is used to map a data bit sequence into a symbol sequence; The transceiver module is further configured to receive the symbol sequence sent via the first waveform.

23. A communication device, characterized in that: include: one or more processors; The communication device is used to execute the communication method according to any one of claims 1 to 10 or any one of claims 11 to 20.

24. 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 10, and the network device is configured to implement the communication method according to any one of claims 11 to 20.

25. 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 10 or any one of claims 11 to 20.

26. A computer program product comprising a computer program and / or instructions, characterized in that When the computer program and / or the instructions are executed by a communication device, the communication method according to any one of claims 1 to 10 or any one of claims 11 to 20 is implemented.

Images