WO2024067305A1

WO2024067305A1 - Single carrier communication method and communication apparatus

Info

Publication number: WO2024067305A1
Application number: PCT/CN2023/120120
Authority: WO
Inventors: 袁世通; 刘凤威; 陈雷; 樊波
Original assignee: 华为技术有限公司
Priority date: 2022-09-28
Filing date: 2023-09-20
Publication date: 2024-04-04
Also published as: CN117793905A

Abstract

The present application provides a single carrier communication method and a communication apparatus. The method may comprise: modulating an encoded bitstream to obtain at least two parts of modulation symbols, the at least two parts of modulation symbols comprising a first part of modulation symbols and a second part of modulation symbols; respectively performing single carrier processing on the first part of modulation symbols and the second part of modulation symbols to obtain a first part of signals and a second part of signals; and sending the first part of signals over a first frequency domain resource by using a first beam, and sending the second part of signals over a second frequency domain resource by using a second beam. The present application can realize frequency division multiplexing in a single carrier transmission scenario.

Description

Single carrier communication method and communication device

This application claims priority to the Chinese patent application filed with the China Patent Office on September 28, 2022, with application number 202211191236.9 and application name “Single Carrier Communication Method and Communication Device”, the entire contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the field of communications, and more specifically, to a single-carrier communication method and a communication device.

Background technique

In the uplink single-carrier transmission scenario, the transmitter may use multiple antenna panels or multiple beams to transmit data at the same time. The existing downlink frequency division multiplexing mode includes two schemes: one scheme is to send two resource blocks (RB) after mapping a redundant version (RV) layer based on two transmission points (TRP) or two beams; the other scheme is to map multiple RVs to different RBs, perform frequency division repetition, and send them based on two TRPs or two beams.

However, the existing downlink frequency division multiplexing mode is not friendly to a single carrier, so directly multiplexing the existing downlink frequency division multiplexing mode in an uplink single carrier transmission scenario will affect the transmission performance.

Summary of the invention

The present application provides a single-carrier communication method and a communication device to implement frequency division multiplexing in a single-carrier transmission scenario.

In a first aspect, a single-carrier communication method is provided, which can be executed by a communication device (such as a terminal device or a network device), or can be executed by a component of the communication device (such as a chip or a circuit), without limitation.

The method may include: modulating a coded bit stream to obtain at least two parts of modulation symbols, the at least two parts of modulation symbols including a first part of modulation symbols and a second part of modulation symbols; performing single-carrier processing on the first part of modulation symbols and the second part of modulation symbols respectively to obtain a first part of signals and a second part of signals; using a first beam to send the first part of signals on a first frequency domain resource, and using a second beam to send the second part of signals on a second frequency domain resource.

For example, the first frequency domain resource and the second frequency domain resource do not overlap.

Based on the above technical solution, in a single-carrier transmission scenario, each of the at least two parts of modulation symbols can be processed by single carrier to obtain at least two parts of signals, and then different beams can be used to send each part of the signal to achieve multi-stream signal space division multiplexing. In addition, the at least two parts of the signal can also be transmitted using different frequency domain resources, so that multi-stream signal frequency division-space division multiplexing can also be achieved. In addition, since each part of the modulation symbol is processed by single carrier, even if the transmission quality on some frequency domain resources is not good, it has little effect on the demodulation of the signal on the remaining frequency domain resources, thereby improving the overall transmission performance.

In combination with the first aspect, in some implementations of the first aspect, the single carrier processing includes: a discrete Fourier transform DFT operation.

In combination with the first aspect, in certain implementations of the first aspect, the ratio between the number of frequency domain units in the first frequency domain resources and the number of frequency domain units in the second frequency domain resources is the same as the ratio between the number of symbols in the first part of the modulation symbols and the number of symbols in the second part of the modulation symbols.

For example, the first ratio is the ratio between the number of frequency domain units in the first frequency domain resource and the number of frequency domain units in the second frequency domain resource, and the second ratio is the ratio between the number of symbols in the first part of the modulation symbols and the number of symbols in the second part of the modulation symbols, and the first ratio and the second ratio are the same.

Based on the above technical solution, the ratio between the number of frequency domain units in the first frequency domain resource and the number of frequency domain units in the second frequency domain resource is the same as the ratio between the number of symbols in the first part of the modulation symbol and the number of symbols in the second part of the modulation symbol. In this way, the resources used to transmit each part of the signal (such as the first part of the signal and the second part of the signal) can be reasonably allocated to improve the utilization rate of the resources.

In combination with the first aspect, in certain implementations of the first aspect, modulating the coded bit stream to obtain at least two parts of modulation symbols includes: modulating the coded bit stream to obtain modulation symbols, and the modulation symbols are divided into at least two parts of modulation symbols.

In combination with the first aspect, in some implementations of the first aspect, the modulation symbol is evenly divided into at least two parts of modulation symbols.

Based on the above technical solution, the modulation symbols can be evenly divided into at least two parts of modulation symbols, which is simple and easy to implement.

In combination with the first aspect, in certain implementations of the first aspect, the modulation symbols are equally divided into a first part of modulation symbols and a second part of modulation symbols, wherein the first half of the modulation symbols are the first part of modulation symbols, and the second half of the modulation symbols are the second part of modulation symbols; or, the symbols in the modulation symbols numbered with odd numbers are the first part of modulation symbols, and the symbols in the modulation symbols numbered with even numbers are the second part of modulation symbols.

In combination with the first aspect, in some implementations of the first aspect, the number of frequency domain units in the first frequency domain resources and the number of frequency domain units in the second frequency domain resources are the same.

Based on the above technical solution, the resources allocated to the terminal device for transmitting signals can be evenly divided into two parts, each used to transmit the two parts of the signal.

In combination with the first aspect, in certain implementations of the first aspect, the first frequency domain resources and the second frequency domain resources are allocated resources. If the allocated resources also include third frequency domain resources, no signal is transmitted on the third frequency domain resources, or the signal transmitted on the third frequency domain resources is a preset signal.

Based on the above technical solution, if the frequency domain resources allocated to the terminal device are to be divided equally into two parts, each used to transmit the first part of the signal and the second part of the signal, then if the number of frequency domain units in the allocated resources is an odd number, the extra frequency domain unit may not transmit a signal, or may transmit a preset signal.

In combination with the first aspect, in certain implementations of the first aspect, the method also includes: receiving first indication information, the first indication information satisfies any of the following items: the first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or, the first indication information includes the first TPMI or the second TPMI, the first TPMI and the second TPMI are associated with each other, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or, the first indication information includes a third TPMI, and the third TPMI is used to precode the first part of the signal and the second part of the signal.

Based on the above technical solution, two TPMIs can be provided, which are respectively used for the first frequency domain resource and the second frequency domain resource, that is, respectively used for the first part of the signal transmitted on the first frequency domain resource and the second part of the signal transmitted on the second frequency domain resource, thereby improving flexibility.

In combination with the first aspect, in certain implementations of the first aspect, the method also includes: sending a first demodulation reference signal DMRS and a second DMRS, the first DMRS is used to assist in demodulating the first part of the signal, the second DMRS is used to assist in demodulating the second part of the signal, the antenna ports of the first DMRS and the second DMRS are the same, the first DMRS corresponds to the first frequency domain resources, and the second DMRS corresponds to the second frequency domain resources.

Based on the above technical solution, the antenna ports of the DMRS used for each part of the frequency domain resources can be the same.

In combination with the first aspect, in certain implementations of the first aspect, before using a first beam to send a first part of the signal on a first frequency domain resource and using a second beam to send a second part of the signal on a second frequency domain resource, the method also includes: receiving second indication information, the second indication information indicating: sending each part of the at least two parts of the signal on different frequency domain resources, and/or using different beams to send each part of the at least two parts of the signal.

Based on the above technical solution, the transmitting end can determine whether to adopt the frequency division-space division multiplexing mode to transmit the signal based on the indication.

In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving third indication information, the third indication information indicating transmission resources, and the transmission resources include first frequency domain resources and second frequency domain resources.

In combination with the first aspect, in certain implementations of the first aspect, the transmission resource is a configured authorized CG resource.

In a second aspect, a single-carrier communication method is provided, which can be executed by a communication device (such as a terminal device or a network device), or can be executed by a component of the communication device (such as a chip or a circuit), without limitation.

The method may include: receiving a first part of the signal on a first frequency domain resource, and receiving a second part of the signal on a second frequency domain resource, wherein the first part of the signal and the second part of the signal are obtained by performing single-carrier processing on the first part of the modulation symbols and the second part of the modulation symbols respectively; and jointly demodulating the first part of the signal and the second part of the signal.

For example, the first signal portion and the second signal portion are sent using different beams.

In combination with the second aspect, in some implementations of the second aspect, the single carrier processing includes: discrete Fourier transform DFT operation.

In combination with the second aspect, in certain implementations of the second aspect, the first ratio and the second ratio are the same, wherein the first ratio is the ratio between the number of frequency domain units in the first frequency domain resources and the number of frequency domain units in the second frequency domain resources, and the second ratio is the ratio between the number of symbols in the first part of the modulation symbols and the number of symbols in the second part of the modulation symbols.

In combination with the second aspect, in some implementations of the second aspect, the number of symbols in the first part of the modulation symbols and the number of symbols in the second part of the modulation symbols The number of symbols in the number is the same.

In combination with the second aspect, in certain implementations of the second aspect, the first part of the modulation symbols and the second part of the modulation symbols belong to modulation symbols, wherein the first half of the modulation symbols are the first part of the modulation symbols, and the second half of the modulation symbols are the second part of the modulation symbols; or, the symbols numbered odd in the modulation symbols are the first part of the modulation symbols, and the symbols numbered even in the modulation symbols are the second part of the modulation symbols.

In combination with the second aspect, in some implementations of the second aspect, the number of frequency domain units in the first frequency domain resources and the number of frequency domain units in the second frequency domain resources are the same.

In combination with the second aspect, in certain implementations of the second aspect, the first frequency domain resources and the second frequency domain resources are allocated resources. If the allocated resources also include third frequency domain resources, no signal is transmitted on the third frequency domain resources, or the signal transmitted on the third frequency domain resources is a preset signal.

In combination with the second aspect, in certain implementations of the second aspect, the method also includes: sending first indication information, the first indication information satisfies any of the following items: the first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or, the first indication information includes the first TPMI or the second TPMI, the first TPMI and the second TPMI are associated with each other, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or, the first indication information includes a third TPMI, and the third TPMI is used to precode the first part of the signal and the second part of the signal.

In combination with the second aspect, in certain implementations of the second aspect, the method also includes: receiving a first demodulation reference signal DMRS and a second DMRS, the antenna ports of the first DMRS and the second DMRS are the same, the first DMRS corresponds to a first frequency domain resource, and the second DMRS corresponds to a second frequency domain resource; using the first DMRS to assist in demodulating the first signal, and using the second DMRS to assist in demodulating the second signal.

In combination with the second aspect, in certain implementations of the second aspect, before receiving the first part of the signal on the first frequency domain resource and receiving the second part of the signal on the second frequency domain resource, the method also includes: sending second indication information, the second indication information indicating: sending each part of the at least two parts of the signal on different frequency domain resources, and/or using different beams to send each part of the at least two parts of the signal.

In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending third indication information, the third indication information indicating transmission resources, and the transmission resources include first frequency domain resources and second frequency domain resources.

In combination with the second aspect, in certain implementations of the second aspect, the transmission resource is a configured authorized CG resource.

Regarding the beneficial effects of the second aspect, reference may be made to the relevant description in the first aspect and will not be repeated here.

On the third aspect, a single-carrier communication method is provided, which can be executed by a communication device (such as a terminal device or a network device), or can be executed by a component of the communication device (such as a chip or a circuit), without limitation.

The method may include: performing single-carrier modulation on the modulation symbol to obtain a modulated signal, wherein the modulated signal is divided into at least two signal parts, and the at least two signal parts include a first signal part and a second signal part; using a first beam to send the first signal part on a first frequency domain resource, and using a second beam to send the second signal part on a second frequency domain resource.

Regarding the beneficial effects of the third aspect and possible designs of the third aspect, please refer to the relevant description in the first aspect and will not be repeated here.

In a fourth aspect, a single-carrier communication method is provided, which can be executed by a communication device (such as a terminal device or a network device), or can be executed by a component of the communication device (such as a chip or a circuit), without limitation.

The method may include: receiving a first part of the signal on a first frequency domain resource, and receiving a second part of the signal on a second frequency domain resource, wherein the first part of the signal and the second part of the signal are obtained by dividing a modulated signal, and the modulated signal is obtained by single-carrier modulation of a modulation symbol; and jointly demodulating the first part of the signal and the second part of the signal.

Regarding the beneficial effects of the fourth aspect and possible designs of the fourth aspect, please refer to the relevant description in the second aspect and will not be repeated here.

In the fifth aspect, a single-carrier communication method is provided, which can be executed by a communication device (such as a terminal device or a network device), or can be executed by a component of the communication device (such as a chip or a circuit), without limitation.

The method may include: receiving first indication information, where the first indication information satisfies any of the following: the first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or the first indication information includes the first TPMI or the second TPMI, the first TPMI and the second TPMI are associated, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal The first part of the signal and the second part of the signal are signals obtained by single carrier processing.

Optionally, the method further includes: precoding the first part of the signal based on the first TPMI, and precoding the second part of the signal based on the second TPMI.

Regarding the beneficial effects of the fifth aspect and possible designs of the first aspect, please refer to the relevant description in the second aspect and will not be repeated here.

In the sixth aspect, a single-carrier communication method is provided, which can be executed by a communication device (such as a terminal device or a network device), or can be executed by a component of the communication device (such as a chip or a circuit), without limitation.

The method may include: sending first indication information, the first indication information satisfies any of the following items: the first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or, the first indication information includes the first TPMI or the second TPMI, the first TPMI and the second TPMI are associated, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; wherein the first part of the signal and the second part of the signal are signals obtained by single carrier processing.

Regarding the beneficial effects of the sixth aspect and possible designs of the sixth aspect, please refer to the relevant description in the second aspect and will not be repeated here.

In a seventh aspect, a communication device is provided, the device being used to execute the method in any possible implementation of the first to sixth aspects. Specifically, the device may include a unit and/or module, such as a processing unit and/or a communication unit, for executing the method in any possible implementation of the first to sixth aspects.

In one implementation, the device is a communication device (such as a terminal device, or a network device). When the device is a terminal device, the communication unit may be a transceiver, or an input/output interface; the processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input/output interface may be an input/output circuit.

In another implementation, the device is a chip, chip system or circuit for a communication device (such as a terminal device, or a network device). When the device is a chip, chip system or circuit for a terminal device, the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip, chip system or circuit; the processing unit may be at least one processor, processing circuit or logic circuit.

In an eighth aspect, a communication device is provided, the device comprising: at least one processor, configured to execute a computer program or instruction stored in a memory, so as to execute the method in any possible implementation of the first to sixth aspects above. Optionally, the device further comprises a memory, configured to store a computer program or instruction. Optionally, the device further comprises a communication interface, and the processor reads the computer program or instruction stored in the memory through the communication interface.

In one implementation, the device is a communication device (such as a terminal device or a network device).

In another implementation, the device is a chip, a chip system or a circuit used in a communication device (such as a terminal device or a network device).

In a ninth aspect, the present application provides a processor for executing the methods provided in the first to sixth aspects above.

For the operations such as sending and acquiring/receiving involved in the processor, unless otherwise specified, or unless they conflict with their actual function or internal logic in the relevant description, they can be understood as operations such as processor output, reception, input, etc., or as sending and receiving operations performed by the radio frequency circuit and antenna, and this application does not limit this.

In a tenth aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, wherein the program code includes a method for executing any possible implementation of the first to sixth aspects above.

In an eleventh aspect, a computer program product comprising instructions is provided, and when the computer program product is run on a computer, the computer is enabled to execute a method in any possible implementation of the first to sixth aspects above.

In a twelfth aspect, a communication system is provided, comprising the aforementioned transmitting device and receiving device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a wireless communication system 100 applicable to an embodiment of the present application.

FIG. 2 is a schematic diagram of a single-carrier communication method 200 provided in an embodiment of the present application.

FIG. 3 is a schematic diagram of signal processing applicable to an embodiment of the present application.

FIG. 4 is a schematic diagram applicable to method 1.

FIG. 5 is a schematic diagram applicable to method 2.

FIG. 6 is a schematic diagram of a DMRS applicable to an embodiment of the present application.

FIG. 7 is a schematic block diagram of a communication device 700 provided in an embodiment of the present application.

FIG8 is a schematic block diagram of a communication device 800 provided in an embodiment of the present application.

FIG. 9 is a schematic block diagram of a chip system 900 provided in an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

The technical solution provided in this application can be applied to various communication systems, such as: the fifth generation (5th generation, 5G) or new radio (new radio, NR) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, etc. The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system. The technical solution provided in this application can also be applied to device to device (D2D) communication, vehicle to everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and Internet of things (IoT) communication system or other communication systems.

The terminal devices in the embodiments of the present application include various devices with wireless communication functions, which can be used to connect people, objects, machines, etc. The terminal devices can be widely used in various scenarios, such as: cellular communication, D2D, V2X, peer to peer (P2P), M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery, etc. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. The terminal device can be a user equipment (UE), terminal, fixed device, mobile station device or mobile device of the third generation partnership project (3GPP) standard, a subscriber unit, a handheld device, a vehicle-mounted device, a wearable device, a cellular phone, a smart phone, a SIP phone, a wireless data card, a personal digital assistant (PDA), a computer, a tablet computer, a notebook computer, a wireless modem, a handheld device (handset), a laptop computer, a computer with wireless transceiver function, a smart book, a vehicle, a satellite, a global positioning system (GPS) device, a target tracking device, an aircraft (such as a drone, a helicopter, a multi-copter, a quadcopter, or an airplane), a ship, a remote control device, a smart home device, an industrial device, or a device built into the above device (for example, a communication module, a modem or a chip in the above device), or other processing devices connected to the wireless modem.

It should be understood that in some scenarios, the UE can also be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in scenarios such as V2X, D2D or P2P.

In the embodiment of the present application, the device for realizing the function of the terminal device can be the terminal device, or it can be a device that can support the terminal device to realize the function, such as a chip system or a chip, which can be installed in the terminal device. In the embodiment of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices.

The network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be referred to as an access network device or a wireless access network device, such as a base station. The network device in the embodiment of the present application may refer to a wireless access network (RAN) node (or device) that connects a terminal device to a wireless network. Base station can broadly cover various names as follows, or replace with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station, auxiliary station, multi-standard wireless (motor slide retainer, MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, a modem or a chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs the base station function in D2D, V2X, and M2M communications, a network-side device in a 6G network, or a device that performs the base station function in a future communication system. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network device.

Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

The network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air. The embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.

First, a communication system applicable to the present application is briefly introduced as follows.

Referring to FIG. 1 , as an example, FIG. 1 is a schematic diagram of a wireless communication system 100 applicable to an embodiment of the present application. As shown in FIG. 1 , the wireless communication system 100 may include at least one network device, such as the network device 110 shown in FIG. 1 , and the wireless communication system 100 may also include at least one terminal device, such as the terminal device 120 shown in FIG. 1 . Both the network device and the terminal device may be configured with at least one antenna, and the network device and the terminal device may communicate using a multi-antenna technology.

When the network device and the terminal device communicate, the network device can manage at least one cell, and there can be an integer number of terminal devices in one cell. Optionally, the network device 110 and the terminal device 120 form a single-cell communication system, and without loss of generality, the cell is recorded as cell #1. The network device 110 can be a network device in cell #1, or the network device 110 can serve a terminal device (such as terminal device 120) in cell #1.

It should be noted that a cell can be understood as an area within the coverage of wireless signals of network equipment.

It is understood that Figure 1 is only a simplified schematic diagram for ease of understanding, and the wireless communication system 100 may also include other network devices or other terminal devices, which are not shown in Figure 1. The embodiments of the present application may be applicable to any communication scenario in which a transmitting device and a receiving device communicate.

As an example, the technical solution of the present application can be applied to the transmission scenario within a cell. The terminal device measures the reference signal of the non-serving beam of the current serving cell and reports it to the current serving cell. According to the configuration of the network device, the terminal device can switch the serving beam to the reported beam.

As another example, the technical solution of the present application can also be applied to the scenario of inter-cell transmission. The terminal device measures the reference signal of the non-serving cell beam and reports it to the current serving cell. According to the configuration of the network device, after switching the beam, the terminal device can receive signaling/data from another cell without switching the serving cell. In other words, the terminal device receives a signal from the antenna of another cell, but the serving cell may remain unchanged or may change.

The above is an exemplary description and is not intended to be limiting. The technical solution of the present application can be used in scenarios where a terminal device uses at least two beams to simultaneously perform uplink transmission. The devices on the network side that receive signals sent by a terminal device using at least two beams may belong to different cells, or may be different TRPs or antenna panels in the same cell, without limitation. In addition, the terminal device generally uses two panels to achieve simultaneous transmission of multiple beams, so the technical solution of the present application can also be used in scenarios where multiple panels transmit simultaneously.

To facilitate understanding of the embodiments of the present application, a brief description of the terms involved in the present application is given.

1. Beam

A beam is a communication resource. The embodiment of a beam in the NR protocol can be a spatial filter, or a spatial filter or spatial parameters. The beam used to send a signal can be called a transmission beam (Tx beam), which can be called a spatial domain transmit filter or a spatial domain transmit parameter; the beam used to receive a signal can be called a reception beam (Rx beam), which can be called a spatial domain receive filter or a spatial domain receive parameter.

The transmit beam may refer to the distribution of signal strength in different directions of space after the signal is transmitted by the antenna, and the receive beam may refer to the distribution of signal strength in different directions of space of the wireless signal received from the antenna.

It should be understood that the embodiment of beams in the NR protocol listed above is only an example and should not constitute any limitation to this application. This application does not exclude the possibility of defining other terms in future protocols to express the same or similar meanings.

In addition, the beam may be a wide beam, a narrow beam, or other types of beams. The technology for forming the beam may be a beamforming technology or other technologies. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology. Different beams may be considered as different resources. The same information or different information may be sent through different beams.

Optionally, multiple beams with the same or similar communication characteristics are regarded as one beam. One beam may include one or more antenna ports for transmitting data channels, control channels, and sounding signals, etc. One or more antenna ports forming a beam may also be regarded as an antenna port set.

As an example, when using a low frequency band or a medium frequency band, the signal can be sent omnidirectionally or through a wider angle; when using a high frequency band, thanks to the smaller carrier wavelength of the high frequency communication system, an antenna array consisting of many antenna elements can be arranged at the transmitting and receiving ends. The transmitting end sends the signal with a certain beamforming weight so that the transmitted signal forms a beam with spatial directivity. At the same time, the receiving end uses an antenna array with a certain beamforming weight for reception, which can increase the received power of the signal at the receiving end and combat path loss.

2. Antenna port

Antenna port is referred to as port. A transmitting antenna identified by a receiving device, or a transmitting antenna that can be distinguished in space. An antenna port can be configured for each virtual antenna. Each virtual antenna can be a weighted combination of multiple physical antennas. Each antenna port can correspond to a reference signal port.

3. Reference signal (RS)

A reference signal, also called a pilot signal, is a known signal provided by a transmitting device to a receiving device for channel estimation, channel measurement, channel detection, or channel demodulation. As an example, a reference signal can be applied to a physical layer. Reference signals can include downlink reference signals and uplink reference signals.

As an example, downlink reference signals include: primary synchronization signal (PSS), secondary synchronization signal (SSS), demodulation reference signal (DMRS) for downlink demodulation, phase noise tracking signal (PTRS) for downlink, channel status information reference signal (CSI-RS), cell reference signal (CRS), time/frequency tracking reference signal (TRS), positioning signal (positioning RS), etc. Among them, DMRS for demodulation of physical downlink control channel (PDCCH) may be referred to as PDCCH DMRS, and DMRS for demodulation of physical downlink shared channel (PDSCH) may be referred to as PDSCH DMRS.

As an example, the uplink reference signal includes: DMRS for uplink demodulation, sounding reference signal (SRS) for uplink channel measurement, or PTRS for uplink, uplink positioning signal (uplink positioning RS), etc. Among them, the DMRS used for physical uplink control channel (physical uplink control channel, PUCCH) demodulation can be called PUCCH DMRS, and the DMRS used for physical uplink shared channel (physical uplink shared channel, PUSCH) demodulation can be called PUSCH DMRS.

In addition to the reference signals listed above, the reference signal of the present application may also be a sequence signal in a set of sequence signals with good correlation characteristics. The good correlation characteristic is that any sequence in the set has a larger autocorrelation peak, and any two sequences in the set have a smaller mutual correlation peak. That is, in an embodiment of the present application, a transmitting device may send multiple signals, at least one of which is a sequence signal with the above-mentioned good correlation, such as a pseudo-random sequence and a Zadoff-chu sequence. Specifically, correlation refers to a correlation calculation between a sequence signal and another sequence signal in the same set to obtain a correlation value. Thus, for a sequence signal with good correlation characteristics, the receiving device can detect whether the signal exists based on the correlation. That is, there is no need to use a detection mechanism such as a pilot for the transmission of a sequence signal with correlation. Among them, as a type of signal with good correlation characteristics, a reference signal (or a pilot signal) can be listed.

It should be understood that the specific examples of sequence signals listed above are only for illustrative purposes and the present application is not limited thereto. For example, the sequence signal may also be a signal for carrying feedback information (e.g., confirmation (acknowledgement, ACK) information or negative acknowledgement (negative acknowledgment, NACK)), a resource request signal or a measurement request signal, etc.

4. Quasi-co-location (QCL)

QCL is also called Quasi-Colocation. A QCL relationship is used to indicate that multiple resources have one or more identical or similar communication characteristics. For multiple resources having a QCL relationship, the same or similar communication configuration can be used.

For example, if two antenna ports have a QCL relationship, the parameters of one antenna port can be used to determine the parameters of another antenna port that has a QCL relationship with the antenna port. The parameters may include one or more of the following: delay spread, Doppler spread, Doppler shift, average delay, average gain, and spatial Rx parameters. The spatial Rx parameters may include one or more of the following: angle of arrival (AOA), average AOA, AOA spread, angle of departure (AOD), average angle of departure AOD, AOD spread, receive antenna spatial correlation parameters, transmit antenna spatial correlation parameters, transmit beam, receive beam, and resource identifier.

As an example, the co-location indication may be used to indicate whether at least two groups of antenna ports have a co-location relationship. For example, the co-location indication is used to indicate whether the channel state information reference signals sent by at least two groups of antenna ports come from the same transmission point, or the co-location indication is used to indicate whether at least two groups of antenna ports have a co-location relationship. Whether the channel state information reference signals sent by the group antenna ports come from the same beam group.

5. Transmission configuration indicator (TCI)

TCI can be used to indicate TCI state (TCI-state). The upper layer in the protocol can configure QCL through TCI-state. TCI-state is used to configure a quasi-co-location relationship between one or two downlink reference signals and the DMRS of PDSCH. TCI-state includes one or two QCL relationships. QCL represents a certain consistency relationship between the signal to be received and a previously known reference signal. If a QCL relationship exists, the terminal device can use the reception or transmission parameters of the previous reception of a reference signal to receive or send the upcoming signal.

The configuration information of a TCI state may include the identifiers of one or two reference signal resources and the associated QCL type. When the QCL relationship is configured as one of type A, B, or C, the terminal device can demodulate the PDCCH or PDSCH according to the indication of the TCI state. When the QCL relationship is configured as type D, the terminal device can know which transmit beam the network device uses to send the signal, and then determine which receive beam to use to receive the signal based on the beam pairing relationship determined by the channel measurement described above.

The following is a brief introduction to the configuration, activation and indication of TCI status.

TCI state configuration: As an example, the network device can configure multiple TCI states to the terminal device through radio resource control (RRC) signaling. These TCI states all include a QCL-Info of type D. The network device can also configure a TCI-state that does not include a QCL-info of type D, and there is no restriction on this.

TCI state activation: After the network device is configured with multiple TCI states, 8 of the TCI states can be activated through the medium access control-control element (MAC-CE). These 8 TCI states correspond one-to-one to the 8 values of the TCI field in the downlink control information (DCI). That is, the 8 values of the TCI field of the DCI correspond to which 8 TCI states can be determined through MAC-CE.

TCI state indication: The network device indicates a specific TCI-state through the TCI field in the DCI. For example, the value of the TCI field in the DCI sent by the network device to the terminal device is 000, indicating that the data transmission beam adopts the TCI state corresponding to 000. The reference signal contained in the QCL-Info of type D in the TCI state is the channel state information-reference signal (CSI-RS) with an index of #1, indicating that the beam used for data transmission is the same as the receiving beam corresponding to the CSI-RS with an index of #1. The receiving beam corresponding to the CSI-RS with an index of #1 can be determined through the beam measurement process and is known to the terminal device. Therefore, through the specific value of the TCI field, the terminal device can determine the beam corresponding to the data transmission beam, and thus use the corresponding beam to send or receive data.

It should be noted that the two descriptions of TCI-state and TCI state in this article can be interchangeable.

6. Time domain unit and frequency domain unit

Data or information can be carried through time and frequency resources.

In the frequency domain, time-frequency resources can include one or more frequency domain units. A frequency domain unit can be a resource element (RE), a resource block (RB), a subchannel, a resource pool, a bandwidth, a bandwidth part (BWP), a carrier, a channel, or an interlace RB, etc.

7. Public beam

At present, each channel is indicated by a separate beam. Each channel has its own corresponding beam. In the embodiment of the present application, a common beam is defined, which can be used for multiple uplink and/or downlink channels at the same time. It can be understood that the naming of the common beam is for the convenience of distinction, and it can also be replaced by other names without limitation.

Common beam: The same beam (or the same group of beams) used by at least one of the following: at least one channel, at least one channel, at least one reference signal, at least one reference signal. As an example, the channel includes but is not limited to at least one of the following: PDCCH, PDSCH, PUCCH, PUSCH, physical random access channel (PRACH). As an example, the reference signal includes but is not limited to at least one of the following: synchronization signal block (SSB), CSI-RS, DMRS, PTRS, TRS, SRS, etc.

Joint common beam: used for transmission of at least one uplink channel or at least one reference signal, and at least one downlink channel or at least one reference signal. For example, PDCCH, PDSCH, PUCCH and PUSCH. The joint common beam may also be referred to as an uplink and downlink common beam, and its naming does not limit the protection scope of the embodiments of the present application.

Uplink common beam: A beam used for uplink transmission of at least one of the following: at least one channel, at least one channel transmission, at least one reference signal, at least one reference signal. For example, a beam used for PUCCH, PUSCH, and SRS at the same time can be called an uplink common beam. Beam.

Downlink common beam: used for transmission of at least one of the following in downlink at the same time: at least one channel, at least one channel transmission, at least one reference signal, at least one reference signal. For example, a beam used for PDCCH, PDSCH and CSI-RS at the same time can be called an uplink common beam.

The form of common beam: the common beam can be a newly defined structure (such as different from the existing TCI-state). For example, the common beam includes relevant information of the beam indication, including but not limited to one or more of the following: common beam identifier (identifier, ID), logical cell identifier (cell ID), physical cell identifier, partial bandwidth identifier, reference signal resources for determining the beam, QCL type, uplink power control related parameters (such as path loss measurement reference signal resources, p0, closed loop index (closedLoopIndex)), path loss reference signal identifier.

Application scope of common beam: As an example, common beam can be cell-level, such as a common common beam used for transmission of multiple channels in a cell. As another example, common beam can be BWP-level, such as used for transmission of multiple channels in a BWP. As another example, common beam can also be cross-cell, such as used for transmission of multiple channels in multiple cells. The multiple cells can be, for example, multiple cells in a frequency band, or multiple cells can be multiple cells across frequency bands, without limitation.

The above briefly describes the terms involved in this application, which will not be repeated in the following embodiments. In addition, the above description of terms is only for ease of understanding and does not limit the protection scope of the embodiments of this application.

It can be understood that the term "and/or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.

It can also be understood that the information indicated by the indication information is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (such as specified by the protocol), thereby reducing the indication overhead to a certain extent.

The method provided by the embodiment of the present application will be described in detail below in conjunction with the accompanying drawings. The embodiment provided by the present application can be applied to any communication scenario of a transmitting end device and a receiving end device, such as being applied to the communication system shown in FIG1 above. In the following method embodiment, the transmitting end device is mainly a terminal device (or a terminal device) and the receiving end device is a network device (or a network device) as an example for exemplary description.

Referring to FIG. 2 , as an example, FIG. 2 is a schematic diagram of a single-carrier communication method 200 provided in an embodiment of the present application.

210. Modulate the coded bit stream to obtain at least two parts of modulation symbols, where the at least two parts of modulation symbols include a first part of modulation symbols and a second part of modulation symbols.

In a first possible implementation, the coded bit stream is modulated to obtain modulation symbols, where the modulation symbols are divided into at least two modulation symbol parts.

In a second possible implementation, the coded bit stream is modulated to obtain at least two parts of modulation symbols.

The embodiments of the present application are mainly introduced by taking the first possible implementation method as an example.

Taking the transmitting end device as a terminal device as an example, in step 210, the terminal device modulates the coded bit stream to obtain modulation symbols.

For example, the modulation method for modulating the coded bit stream may include, but is not limited to, any of the following: pi/2-binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), 64QAM, 256QAM, phase shift keying (PSK), amplitude phase shift keying (APSK), non-uniform QAM, etc. Taking the modulation method for modulating the coded bit stream as QAM as an example, the modulation symbol may be, for example, a QAM symbol.

It can be understood that the embodiments of the present application do not limit the specific method of coded bit stream modulation.

It can also be understood that, in step 210, the number of symbols in the modulation symbol obtained by modulating the coded bit stream is multiple.

Optionally, the method 200 further includes: dividing the modulation symbol into at least two parts of modulation symbols, where the at least two parts of modulation symbols include a first part of modulation symbols and a second part of modulation symbols.

Taking the transmitting end device as a terminal device as an example, the terminal device divides the modulation symbol into at least two modulation symbols.

The following is an example. Assume that the number of modulation symbols is N, where N is an integer greater than 1. The terminal device can The modulation symbols can be divided into at least two parts of modulation symbols. For example, the terminal device can divide the N modulation symbols into two parts of modulation symbols; for another example, the terminal device can divide the N modulation symbols into three parts of modulation symbols; for another example, the terminal device can divide the N modulation symbols into four parts of modulation symbols, and so on, without limitation. Among them, the number of symbols in each part of modulation symbols can be the same or different, without limitation. In addition, each part of modulation symbols can correspond to a stream signal.

For ease of understanding, the following description mainly uses two parts of modulation symbols (ie, a first part of modulation symbols and a second part of modulation symbols) as an example for exemplary explanation.

Optionally, the modulation symbol is evenly divided into at least two parts of modulation symbols, that is, the modulation symbol is evenly divided into at least two parts of modulation symbols. Taking evenly dividing the modulation symbol into the first part of modulation symbols and the second part of modulation symbols as an example, two possible implementations of even division are introduced.

One possible implementation is to split it in half.

Based on this implementation method, the first half of the modulation symbols in the modulation symbol is the first part of the modulation symbols, and the second half of the modulation symbols in the modulation symbol is the second part of the modulation symbols; or, the second half of the modulation symbols in the modulation symbol is the first part of the modulation symbols, and the first half of the modulation symbols in the modulation symbol is the second part of the modulation symbols.

Here is an example. Assume that the number of modulation symbols is N, N is an even number, and the N modulation symbols are: Q1, Q2, ..., QN. After being divided in half, the number of modulation symbols in the first part and the number of modulation symbols in the second part are both N/2, and the modulation symbols in the first part are: Q1, Q2, ... QN/2, and the modulation symbols in the second part are: Q(N/2+1), Q(N/2+2), ... QN/2.

Another possible implementation is comb-shaped bisection.

Comb-shaped bisection means taking every other one. Based on this implementation, the symbols with odd numbers in the modulation symbols are the first part of the modulation symbols, and the symbols with even numbers in the modulation symbols are the second part of the modulation symbols; or, the symbols with even numbers in the modulation symbols are the first part of the modulation symbols, and the symbols with odd numbers in the modulation symbols are the second part of the modulation symbols.

Here is an example. Assume that the number of modulation symbols is N, N is an even number, and the N modulation symbols are: Q1, Q2, ..., QN. After comb-shaped division, the number of modulation symbols in the first part and the number of modulation symbols in the second part are both N/2, and the modulation symbols in the first part are: Q1, Q3, ... Q(N-1), and the modulation symbols in the second part are: Q2, Q4, ... QN.

It can be understood that the above two division methods are exemplary and not limiting. Any method that can make the number of symbols of the first part of modulation symbols and the number of symbols of the second part of modulation symbols the same is applicable to the embodiment of the present application.

220, perform single carrier processing on the first part of modulation symbols and the second part of modulation symbols respectively to obtain a first part of signals and a second part of signals.

Taking the transmitting end device as a terminal device as an example, in step 220, the terminal device performs single carrier processing on the first part of modulation symbols and the second part of modulation symbols respectively.

Among them, single carrier processing can also be called single carrier modulation. For example, a single carrier can be discrete Fourier transformation-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) or single carrier-quadrature amplitude modulation (SC-QAM).

Optionally, the single carrier processing includes a discrete Fourier transform (DFT) operation. That is, performing single carrier processing on the first part of the modulation symbols and the second part of the modulation symbols respectively may include: performing DFT processing on the first part of the modulation symbols and the second part of the modulation symbols respectively.

It can be understood that the process of obtaining the first part of the signal and the second part of the signal may include other processes or operations in addition to the single carrier processing, and is not limited thereto.

Referring to FIG. 3 , as an example, FIG. 3 is a schematic diagram of signal processing applicable to an embodiment of the present application.

As an example, the terminal device performs modulation mapping on the coded bit stream to obtain modulation symbols. Modulation symbols can also be called complex-valued symbols. The modulation symbols are mapped to multiple layers, or transmission layers, through layer mapping. The modulation symbols after layer mapping can be subjected to DFT operation; the frequency domain elements after the DFT operation are mapped to subcarriers; after subcarrier mapping, the frequency domain signal is subjected to inverse fast Fourier transform (IFFT); a cyclic prefix (CP) is added to the signal after IFFT to obtain a transmission symbol (such as the first part of the signal, and the second part of the signal), and finally the transmission symbol is transmitted through the antenna port. Among them, DFT can also be called frequency domain precoding.

As shown in FIG3 , after modulation mapping, the modulation symbols are: Q1, Q2, ..., QN. Assuming that the method of half-division is adopted, the first N/2 symbols, i.e., Q1, Q2, ..., QN/2, can be mapped to layer 1, and the remaining N/2 symbols, i.e., Q(N/2+1), Q(N/2+2), ... QN/2, can be mapped to layer 2. For example, after the first N/2 QAM symbols are mapped to layer 1, a DFT operation is performed; the frequency domain elements after the DFT operation are mapped to subcarriers (not shown in Figure 3); after subcarrier mapping, the frequency domain signal is transformed by IFFT; CP is added to the signal after IFFT, and finally the first part of the signal is obtained and transmitted through the first beam. The signal of layer 2 is similar and will not be repeated here.

230. Use a first beam to send a first part of the signal on a first frequency domain resource, and use a second beam to send a second part of the signal on a second frequency domain resource.

Taking the transmitting end device as a terminal device as an example, in step 230, the terminal device uses a first beam to send a first part of the signal on a first frequency domain resource, and uses a second beam to send a second part of the signal on a second frequency domain resource. The first part of the signal and the second part of the signal may also be referred to as a first stream signal and a second stream signal.

Taking the receiving end device as a network device as an example, the network device receives the first part of the signal on the first frequency domain resource and receives the second part of the signal on the second frequency domain resource. For example, the network device can use different beams to receive the first part of the signal and the second part of the signal; for another example, the network device can also use the same beam to receive the first part of the signal and the second part of the signal, without limitation. For example, the first part of the signal and the second part of the signal are received respectively through two TRPs, for example, the first TRP receives the first part of the signal, and the second TRP receives the second part of the signal.

The first frequency domain resource and the second frequency domain resource may not overlap. In this way, two signals or two streams of signals may be transmitted in a frequency division multiplexing manner. In addition, the first beam and the second beam may be different. In this way, two signals or two streams of signals may be transmitted in a frequency division-space division multiplexing manner.

It is understandable that the first frequency domain resource and the second frequency domain resource may also be the same. That is, in the embodiment of the present application, it is possible to limit the two signal parts or two stream signals to be transmitted in a space division multiplexing manner, without limiting whether to be transmitted in a frequency division multiplexing manner.

For example, in an embodiment of the present application, the first beam may be replaced by the first antenna panel, and the second beam may be replaced by the second antenna panel. Alternatively, the first beam may be replaced by the first common beam, and the second beam may be replaced by the second common beam. Alternatively, taking the transmitting end as a terminal device as an example, the first beam may be replaced by the beam used for communicating with the first network device (such as the first TRP), and the second beam may be replaced by the beam used for communicating with the second network device (such as the second TRP).

By way of example, the first beam and the second beam may also be the same beam.

Based on the embodiments of the present application, in a single-carrier transmission scenario, transmission can be performed through at least two streams of signals. Specifically, the modulation symbol can be divided into at least two parts of modulation symbols, and each part of the modulation symbol is processed by single carrier respectively to obtain at least two parts of signals or at least two streams of signals, and then different beams can be used to send each part of the signal or each stream signal to achieve multi-stream signal space division multiplexing. In addition, the at least two parts of the signal or at least two streams of signals can also be transmitted using different frequency domain resources, so that multi-stream signal frequency division-space division multiplexing can also be achieved. In addition, since each part of the modulation symbol is processed by single carrier respectively, even if the transmission quality on some frequency domain resources is not good, it has little effect on the demodulation of the signal on the remaining frequency domain resources, thereby improving the overall transmission performance.

The following mainly takes the sending end device as the terminal device and the receiving end device as the network device to introduce the solution of the embodiment of the present application.

Optionally, the first ratio and the second ratio are related, wherein the first ratio is the ratio between the number of frequency domain units in the first frequency domain resources and the number of frequency domain units in the second frequency domain resources, and the second ratio is the ratio between the number of symbols in the first part of the modulation symbols and the number of symbols in the second part of the modulation symbols.

In a possible implementation, the first ratio and the second ratio are the same. That is, the ratio between the number of frequency domain units in the first frequency domain resource and the number of frequency domain units in the second frequency domain resource is the same as the ratio between the number of symbols in the first part of the modulation symbol and the number of symbols in the second part of the modulation symbol. Based on this, the resources used to transmit each part of the signal (such as the first part of the signal and the second part of the signal) can be reasonably allocated to improve resource utilization.

Optionally, the number of frequency domain units in the first frequency domain resource and the second frequency domain resource is the same. Based on this, the resources allocated to the terminal device for transmitting signals can be evenly divided into two parts, which are used to transmit two parts of signals respectively.

Assume that the total number of frequency domain units allocated to the terminal device is N _PRB , which is an even _number , and the number of frequency domain units in the first frequency domain resource and the second frequency domain resource is the same, indicating that the number of frequency domain units in the first frequency domain resource and the second frequency domain resource are both (N _PRB /2).

In a possible implementation manner, the first part of frequency domain resources is the first (N _PRB /2) frequency domain units, and the second part of frequency domain resources is the remaining (N _PRB /2) frequency domain units.

For example, by default, the first part of the frequency domain resources is the first (N _PRB /2) frequency domain units, and the second part of the frequency domain resources is the remaining (N _PRB /2) frequency domain units. That is, it can be predefined, such as the standard predefined, that the first part of the signal is mapped to the first (N _PRB /2) frequency domain units. The second part of the signal is mapped to the remaining (N _PRB /2) frequency domain units.

For another example, based on the indication of the network device, the first part of the frequency domain resources is the first (N _PRB /2) frequency domain units, and the second part of the frequency domain resources is the remaining (N _PRB /2) frequency domain units. In other words, the network device can send indication information to the terminal device, and the indication information indicates that the first part of the signal is mapped to the first (N _PRB /2) frequency domain units, and the second part of the signal is mapped to the remaining (N _PRB /2) frequency domain units.

Optionally, the first frequency domain resource and the second frequency domain resource belong to the allocated resources. If the allocated resources also include the third frequency domain resource, no signal is transmitted on the third frequency domain resource, or the signal transmitted on the third frequency domain resource is a preset signal. Among them, the allocated resources may be resources allocated to the terminal device for transmitting signals. Based on this, if the frequency domain resources allocated to the terminal device are to be divided into two parts on average, used to transmit the first part of the signal and the second part of the signal respectively, then if the number of frequency domain units in the allocated resources is an odd number, for the extra frequency domain unit, no signal may be transmitted, or a preset signal may be transmitted.

Assuming that the total number of frequency domain units allocated to the terminal device is N _PRB , N _PRB is an odd number, if the number of frequency domain units in the first frequency domain resource and the second frequency domain resource is the same, in a possible implementation, the number of frequency domain units in the first frequency domain resource is The number of frequency domain units in the second frequency domain resource is in, Indicates rounding down. The remaining frequency domain units in the N _PRB frequency domain units (that is, the third frequency domain resources) can be processed in any of the following ways. Optionally, the third frequency domain resource can be the last frequency domain unit in the N _PRB frequency domain units, or the first frequency domain unit in the N _PRB frequency domain units, or any frequency domain unit in the N _PRB frequency domain units, without limitation.

Mode 1: The signal transmitted on the third frequency domain resource is a preset signal, that is, the symbol mapped on the third frequency domain resource is a preset symbol.

The preset symbol may also be called a virtual symbol (e.g., it may be "0"), which is mainly used for mapping on the third frequency domain resource and does not participate in the subsequent demodulation. For example, taking the frequency domain unit as RB, based on the method 1, the preset symbol of 1RB can be filled in the first part of the modulation symbol and mapped to the first part. The data is sent on RBs.

Refer to Figure 4, as an example, Figure 4 is a schematic diagram applicable to method 1. As shown in Figure 4, it is assumed that the frequency domain units in the first frequency domain resource allocated to the first part of the signal are 3 frequency domain units, and the frequency domain units in the second frequency domain resource allocated to the second part of the signal are 2 frequency domain units. The first part of the modulation symbols and the filled preset symbols can be mapped to 3 frequency domain units in the first frequency domain resources, and the second part of the modulation symbols can be mapped to 2 frequency domain units in the second frequency domain resources. In this example, the third frequency domain resource can be considered as a frequency domain unit in the first frequency domain resource that maps the preset symbol.

Accordingly, considering that each RB includes 12 REs, one RE is one OFDM subcarrier, so when the network device performs frequency domain processing on the signal received by the first beam (that is, the first part of the signal), it takes subcarriers, and the number of inverse discrete Fourier transformation (IDFT) points is determined according to the number. After the network device performs frequency domain equalization on the first part of the signal, the number of IDFT points is determined according to the total symbol length (that is, including the preset symbol). After determining the number of IDFT points, after transforming to the time domain, the redundant symbols (that is, the preset symbols are discarded), and then the symbol streams of the two beams are combined for joint demodulation and decoding.

Mode 2: No signal is transmitted on the third frequency domain resource, that is, no symbol is mapped on the third frequency domain resource.

For example, suppose the frequency domain unit assigned to the first part of the signal is frequency domain units, assigned to the second part of the signal The frequency domain unit is Then the first part of the modulation symbols can be mapped to the first frequency domain resource. frequency domain units, and no signal is mapped to the remaining frequency domain unit; the second part of the modulation symbols is mapped to the second frequency domain resource. frequency domain unit.

Refer to Figure 5, as an example, Figure 5 is a schematic diagram applicable to Mode 2. As shown in Figure 5, it is assumed that the frequency domain units in the first frequency domain resource allocated to the first part of the signal are 3 frequency domain units, and the frequency domain units in the second frequency domain resource allocated to the second part of the signal are 2 frequency domain units. The first part of the modulation symbols can be mapped to the first 2 frequency domain units in the first frequency domain resource, and the third frequency domain unit in the first frequency domain resource (an example of the third frequency domain resource) is not mapped to the signal; the second part of the modulation symbols can be mapped to 2 frequency domain units in the second frequency domain resource.

Accordingly, when the network device performs frequency domain processing on the signal received by the first beam (that is, the first part of the signal), subcarriers, and the number of IDFT points is determined according to this number. After the network device performs frequency domain equalization on the first part of the signal, the number of IDFT points is determined according to the actual symbol length. The frequency domain unit is RB, starting from the first RB RBs are IDFT-ed, RBs can be discarded or ignored. After transformation to the time domain, the symbol streams of the two beams are combined for joint demodulation and decoding.

Optionally, method 200 also includes: receiving first indication information, the first indication information including a first transmission precoding matrix indicator (TPMI) and/or a second TPMI.

Among them, TPMI is used to select one from multiple precoding matrices predefined by the protocol. In general, multiple streams use one precoding matrix, and one precoding matrix is used to allocate all frequency domain resources of the terminal device. Different from this, in an embodiment of the present application, two TPMIs can be provided, respectively for the first frequency domain resources and the second frequency domain resources, that is, respectively for the first part of the signal transmitted on the first frequency domain resource and the second part of the signal transmitted on the second frequency domain resource, that is, two TPMIs can be used for two single-stream transmissions. For example, the terminal device sends two parts of single-layer signals (such as two single-layer PUSCHs), which are precoded separately and mapped and transmitted through a beam or an antenna panel respectively, that is, each beam or each antenna panel has a layer of transmission, so the coverage gain can be guaranteed. As shown in Figure 3, the network device schedules two layers, and the signals of each layer are precoded separately, mapped and transmitted through a beam or an antenna panel.

In a first possible implementation manner, the first indication information includes a first TPMI and a second TPMI.

The first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal. Based on this, the network device can indicate two single-stream TPMIs so as to precode the two parts of the signal separately.

In a second possible implementation manner, the first indication information includes a first TPMI.

The first TPMI is used to precode the first part of the signal. The first TPMI and the second TPMI are associated, so the terminal device can determine the second TPMI based on the first TPMI and the associated relationship, and the second TPMI is used to precode the second part of the signal.

The association relationship between the first TPMI and the second TPMI may be predefined, such as predefined by a standard, or may be preconfigured by a network device and notified to the terminal device, and there is no limitation on this.

In a third possible implementation manner, the first indication information includes the second TPMI. This implementation manner may refer to the above-mentioned second possible implementation manner, which will not be described in detail here.

It can be understood that the above is an exemplary description and is not limited to this. For example, the first indication information includes a third TPMI, and the third TPMI can be used to precode the first part of the signal and the second part of the signal. In this case, as an example, the terminal device can use a part of the third TPMI matrix (such as a column, or a row, or a part of the row, or a part of the column, or a part of the row and column, etc.) to precode a part of the signal.

As an example, the matrix of the third TPMI exhibits block diagonal characteristics. Wherein, block diagonal means: Wherein a/b/c/d are any complex numbers or real numbers, and their values may be the same. It can be understood that the above matrix is for the purpose of introducing the block diagonal, and the specific form of the matrix satisfying the block diagonal in the embodiment of the present application is not limited thereto.

In a possible implementation, a corresponding relationship is predefined (such as a standard predefined relationship), and the corresponding relationship is a corresponding relationship between a TPMI matrix and an index, wherein the TPMI matrix satisfies a block diagonal feature. As an example, the corresponding relationship may exist in the form of a table.

Another possible implementation is that the network device selects a TPMI matrix that satisfies the block diagonal feature, and indicates the index corresponding to the TPMI to the terminal device. For example, the network device predefines (such as standard predefines) the index corresponding to the TPMI matrix that satisfies the block diagonal feature from an existing TPMI table, and indicates it to the terminal device. It can also be understood that the above-mentioned solution for TPMI can be used alone.

The above mainly uses codebook transmission as an example for exemplary explanation. It can be understood that for non-codebook (NCB) transmission, as an example, the network device can indicate two SRS resource indicators (SRS resource indicator, SRI) in the uplink scheduling DCI signaling, which are used to determine the precoding and number of layers for single-carrier transmission of two beams (or two panels) respectively.

Optionally, method 200 further includes: the terminal device sends a first DMRS and a second DMRS, the first DMRS is used to assist in demodulating the first part of the signal, the second DMRS is used to assist in demodulating the second part of the signal, the first DMRS corresponds to the first frequency domain resource, and the second DMRS corresponds to the second frequency domain resource. Accordingly, the network device receives the first DMRS and the second DMRS. The network device can assist in demodulating the first part of the signal based on the first DMRS, and assist in demodulating the second part of the signal based on the second DMRS.

The first DMRS is used to assist in demodulating the first part of the signal, indicating that the first DMRS is used to assist the network device in demodulating the first part of the signal. The second DMRS is used to assist in demodulating the second part of the signal, indicating that the second DMRS is used to assist the network device in demodulating the second part of the signal.

The first DMRS corresponds to the first frequency domain resource, indicating that the first DMRS is used for the signal on the first frequency domain resource (i.e., the first part of the signal). The second DMRS corresponds to the second frequency domain resource, indicating that the second DMRS is used for the signal on the second frequency domain resource (i.e., the second part of the signal).

In a possible implementation manner, the antenna port of the first DMRS and the second DMRS is the same.

See Figure 6, as an example, Figure 6 is a schematic diagram of a DMRS applicable to an embodiment of the present application. As shown in Figure 6, two parts of frequency domain resources are used to transmit a first part of the signal and a second part of the signal, respectively. The two parts of the frequency domain resources can use the DMRS of the same antenna port (such as the same comb position but sub-band frequency division), respectively for transmitting signals of different beams (or different antenna panels), that is, the first part of the signal and the second part of the signal.

It can be understood that the above is an exemplary description and is not limited to this. For example, the antenna ports of the first DMRS and the second DMRS may also be different. As an example, when the antenna ports of the first DMRS and the second DMRS are different, the antenna ports of the first DMRS and the second DMRS may belong to the same code division multiplexing (CDM) port group (CDM group).

Optionally, the method 200 further includes: the network device indicates the number of layers (number of layer) to the terminal device. In the embodiment of the present application, for example, if the terminal device sends X part signals (or X stream signaling), the X part signals can be mapped to X layers, where X is an integer greater than 1. Therefore, the number of layers (referred to as the number of layers) can be used to determine the number of streams (referred to as the number of streams). Similarly, the number of streams can also be used to determine the number of layers.

In a first possible implementation, a network device configures or indicates at least two fields (such as Precoding information and number of layers fields) through signaling. When a single carrier is turned on, each Precoding information and number of layers field may indicate one layer (i.e., the number of layers is 1). Based on this implementation, each Precoding information and number of layers field indicates one layer, so as an example, the number of Precoding information and number of layers fields is the number of streams.

For example, taking two Precoding information and number of layers fields as an example, when a single carrier is turned on, the two Precoding information and number of layers fields are used for two beams (or two antenna panels) respectively. In addition, at least one bit in each Precoding information and number of layers field can indicate the precoding matrix under the corresponding transmission layer. For example, at least one bit in each Precoding information and number of layers field indicates the index corresponding to the precoding matrix, and the terminal device can determine the precoding matrix based on the correspondence between the precoding matrix and the index. Among them, the correspondence between the precoding matrix and the index can be predefined, such as predefined by the standard. As an example, the correspondence between the precoding matrix and the index The corresponding relationship between them can be in the form of a table.

In a second possible implementation, the network device configures or indicates a field (such as a Precoding information and number of layers field) through signaling. When a single carrier is turned on, the Precoding information and number of layers field may indicate at least two layers (i.e., the number of layers is at least 2). Based on this implementation, the network device configures or indicates a Precoding information and number of layers field through signaling, and indicates the number of layers through the field. Therefore, as an example, the number of layers indicated by the Precoding information and number of layers field is the number of streams.

For example, taking the Precoding information and number of layers field indicating two layers as an example, it can be defaulted or the network device indicates that a layer of data is mapped on a beam (or an antenna panel) or a scheduling resource. In addition, the precoding matrix can be indicated by at least one bit in the Precoding information and number of layers field. For example, the index corresponding to the precoding matrix is indicated by at least one bit in the Precoding information and number of layers field. The terminal device can determine the precoding matrix based on the correspondence between the precoding matrix and the index. The terminal device can use a part of the precoding matrix (e.g., part of the column, or the row, or the row and column) to precode a part of the transmitted signal (e.g., a layer). Among them, the correspondence between the precoding matrix and the index can be predefined, such as a standard predefined. As an example, the correspondence between the precoding matrix and the index can exist in the form of a table.

Optionally, the method 200 further includes: the terminal device receives second indication information, the second indication information indicating: sending each of the at least two parts of the signal on different frequency domain resources, and/or using different beams to send each of the at least two parts of the signal. Accordingly, the network device sends the second indication information.

Example 1: The second indication information indicates that each part of the at least two parts of the signal is sent on different frequency domain resources.

In this example, after receiving the second indication information, the terminal device learns according to the second indication information to send each part of the at least two signals on different frequency domain resources. Therefore, the terminal device determines to turn on the single-carrier frequency division-space division multiplexing mode, and after modulating the coded bit stream to obtain the modulation symbol, divides the modulation symbol into at least two parts of modulation symbols, and performs single-carrier processing on each part of the modulation symbol, and then uses different beams to send each part of the at least two signals on different frequency domain resources.

In this example, if the network device instructs to send each part of the at least two parts of the signal on different frequency domain resources, the terminal device may default to transmitting the signals on the different frequency domain resources through different beams.

Example 2: The second indication information indicates that each part of the at least two parts of the signal is sent using a different beam.

In this example, after receiving the second indication information, the terminal device learns according to the second indication information to use different beams to send each part of the at least two signals. Therefore, the terminal device determines to turn on the single-carrier frequency division-space division multiplexing mode, and after modulating the coded bit stream to obtain the modulation symbol, divides the modulation symbol into at least two parts of modulation symbols, and performs single-carrier processing on each part of the modulation symbol, and then uses different beams to send each part of the at least two signals on different frequency domain resources.

In this example, if the network device instructs to use different beams to send each of the at least two signals, the terminal device may default to using different beams to send each of the at least two signals on different frequency domain resources.

Example 3: The second indication information indicates that each part of the at least two parts of the signal is sent on different frequency domain resources, and each part of the at least two parts of the signal is sent using different beams.

In this example, after receiving the second indication information, the terminal device learns according to the second indication information to send each part of the at least two signals on different frequency domain resources, and to use different beams to send each part of the at least two signals. Therefore, the terminal device determines to start the single-carrier frequency division-space division multiplexing mode, and after modulating the coded bit stream to obtain the modulation symbol, divides the modulation symbol into at least two parts of modulation symbols, and performs single-carrier processing on each part of the modulation symbol, and then uses different beams to send each part of the at least two signals on different frequency domain resources.

Optionally, the method 200 further includes: the terminal device receives third indication information, the third indication information indicates transmission resources, and the transmission resources include first frequency domain resources and second frequency domain resources. Accordingly, the network device sends the third indication information.

In a first possible implementation manner, the third indication information includes information about transmission resources. Based on the third indication information, that is, the information about the transmission resources, the terminal device can obtain the first frequency domain resource and the second frequency domain resource.

For example, assuming that the number of transmission resource frequency domain units is N _PRB , which is an even _number , the terminal device defaults (such as predefined) that the first part of the frequency domain resources is the first (N _PRB /2) frequency domain units, and the second part of the frequency domain resources is the remaining (N _PRB /2) frequency domain units.

In a second possible implementation, the third indication information includes information about the first frequency domain resource. Based on the third indication information, that is, the information about the first frequency domain resource, the terminal device can obtain the first frequency domain resource and the second frequency domain resource.

For example, assuming that the number of frequency domain units in the first frequency domain resource is N1, then the second frequency domain resource can be defaulted (eg, predefined) It is N1 frequency domain units after the last frequency domain unit in the first frequency domain resource.

In a third possible implementation, the third indication information includes information about the second frequency domain resource. Based on the third indication information, that is, the information about the second frequency domain resource, the terminal device can obtain the first frequency domain resource and the second frequency domain resource. For details, please refer to the above second possible implementation, which will not be repeated here.

Optionally, the transmission resource is a configured grant (CG) resource.

As an example, CG resources include two types: 1) CG type 1: The network device configures semi-static periodic transmission resources for the terminal device, and indicates the configured transmission resources to the terminal device through RRC. 2) CG type 2: The network device configures semi-static periodic transmission resources for the terminal device, indicates the configured transmission resources to the terminal device through RRC, and indicates activation or deactivation of the configured resources to the terminal device through DCI.

For example, the network device sends an RRC message to the terminal device, the RRC message includes a configured GrantConfig, and the configured GrantConfig indicates the transmission resources configured by the network device for the terminal device. In a possible implementation, the RRC message may also indicate whether to enable a single carrier, that is, whether to use single carrier modulation.

For example, the RRC message includes an indication information indicating whether a single carrier is turned on. Assume that 1 bit is used to indicate whether a single carrier is turned on. If the bit is set to "1", it means that the single carrier is turned on; if the bit is set to "0", it means that the single carrier is not turned on. It should be understood that the above is only an exemplary description and is not limiting. In addition, turning on a single carrier can also be reflected as enabling transmit precoding (transform precoding enable).

Optionally, when a single carrier is enabled, a frequency division multiplexing mode is used. For example, the frequency division multiplexing mode may be used by default when a single carrier is enabled, or the frequency division multiplexing mode may be determined to be used through an instruction of a network device.

Optionally, when a single carrier is turned on, the terminal device transmits a W stream signal. Wherein W is an integer greater than 1. For example, W is 2, or W is 3, or W is 4, etc. For example, it can be defaulted that the terminal device transmits a W stream signal when a single carrier is turned on, or it can also be determined by the instruction of the network device to transmit the W stream signal.

In a possible implementation, the network device indicates the number of layers, and the terminal device can obtain the value of W based on the number of layers. For example, the network device can configure precodingAndNumberOfLayers2, which indicates that the number of layers is 2, that is, two stream signals are transmitted, and each stream signal is precoded independently.

Optionally, if configuredGrantConfig configures frequency hopping, frequency division-space division joint frequency hopping can also be supported. For example, each time the terminal device transmits a signal, the location and quantity of frequency domain resources can be determined based on frequency hopping and RB bandwidth. For another example, each time the terminal device transmits a signal, if the signal is transmitted in two streams, the terminal device can use the first beam to send the first part of the signal on the first half of the RB of the resource used for the terminal device to transmit the signal, and use the second beam to send the second part of the signal on the second half of the RB of the resource used for the terminal device to transmit the signal.

Optionally, for type 2 CG resources, the network device can use DCI activation or repeated activation to dynamically adjust at least one of the following items sent in different periodic frequency hopping: beam, frequency domain resources.

In the above embodiments, single carrier transmission is mentioned many times. Taking the transmitting end device as a terminal device as an example, the terminal device may optionally determine to enable or disable single carrier transmission based on certain parameters. Enabling single carrier transmission can be understood as using the single carrier communication method provided in the embodiment of the present application for transmission. Disabling single carrier transmission can be understood as not using the single carrier communication method provided in the embodiment of the present application for transmission.

In a possible implementation, the terminal device considers enabling or disabling single carrier transmission according to the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration, respectively. It can be understood that the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration are named for distinction, and their specific naming does not limit the protection scope of the embodiments of the present application.

For example, the network device can send two high-level parameters to the terminal, as an example, respectively recorded as the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration, and the terminal device can consider enabling or disabling single carrier transmission according to the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration.

In another possible implementation, the terminal device considers enabling or disabling single carrier transmission according to a certain type of parameter (such as transformPrecoder). It can be understood that transformPrecoder is only a possible naming, and its specific naming does not limit the protection scope of the embodiments of the present application.

For example, the network device may send at least one high-level parameter transformPrecoder to the terminal, and the terminal device may consider enabling or disabling single carrier transmission according to the at least one transformPrecoder.

Here are a few possible examples.

Example 1, for any of the following: PUSCH scheduled by a random access response (RAR) uplink (UL) grant, PUSCH scheduled by a fallback RAR UL grant, or PUSCH scheduled by a DCI with a format of 0_0, in any of the above PUSCH transmissions, for the corresponding beam or antenna panel, the terminal device may consider enabling or disabling single carrier transmission according to the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration, respectively. The cyclic redundancy check (CRC) of the PUSCH may be scrambled by a temporary cell-radio network temporary indentifier (TC-RNTI).

Example 2, for PUSCH transmission scheduled by PDCCH, if the terminal device receives a DCI with a scheduling grant, and the format of the DCI is 0_0, the terminal device may consider enabling or disabling single carrier transmission for the corresponding beam or antenna panel in this PUSCH transmission based on two parameters configured by the high-level layer, the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration.

Example 3, if the terminal device receives a DCI with a scheduling grant, the format of the DCI is not 0_0, and two high-level parameters transformPrecoder are included in the PUSCH configuration (pusch-Config), the terminal device may consider enabling or disabling a single carrier on two beams or panels according to the corresponding parameters in this PUSCH transmission.

Example 4: If the terminal device receives a DCI with a scheduling grant, the format of the DCI is not 0_0, and the high-level parameter transformPrecoder is not configured in pusch-Config, the terminal device may consider enabling or disabling single carrier transmission for the corresponding beam or antenna panel based on the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration of the high-level configuration parameters, or the terminal device may consider enabling or disabling single carrier transmission based on the msg3-transformPrecoder parameter configured in the high-level configuration.

Example 5, for a PUSCH transmission whose transmission resources are configured as a grant, if the terminal device includes a high-level parameter transformPrecoder in the configured GrantConfig, the terminal device may consider enabling or disabling a single carrier on two beams or panels according to the parameter in this PUSCH transmission.

Example 6, for a PUSCH transmission whose transmission resources are configured as a grant, if the terminal device includes two high-level parameters transformPrecoder in the configured GrantConfig, the terminal device can consider enabling or disabling a single carrier on two beams or panels according to the corresponding parameters in this PUSCH transmission.

Example 7. For PUSCH transmission whose transmission resources are configured as authorization, if the terminal device does not configure the high-level parameter transformPrecoder in the configured GrantConfig, the terminal device may consider enabling or disabling single carrier transmission for the corresponding beam or antenna panel based on the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration of the high-level configuration parameters, or the terminal device may consider enabling or disabling single carrier transmission based on the msg3-transformPrecoder parameter configured in the high-level configuration.

The above examples are for illustrative purposes only and are not intended to be limiting.

It can be understood that in some of the above embodiments, "transmission" is mentioned. If no special explanation is given, transmission includes receiving and/or sending. For example, transmitting a signal may include receiving a signal and/or sending a signal.

It can also be understood that in some of the above embodiments, the indication information is mentioned, and the indication information can be DCI information. The DCI information can be one DCI information, including transmission parameters indicating two beams or antenna panels, or the DCI information can be two DCI information, respectively indicating transmission parameters of two beams or antenna panels. The DCI information can be sent by one network device or TRP, or by two network devices or TRPs, without limitation.

It can also be understood that in some of the above embodiments, the partial signals may overlap, partially overlap, or not overlap in the frequency domain.

It can also be understood that in some of the above embodiments, each partial signal can also be replaced by each stream signal. For example, the first partial signal can also be called a first stream signal, and the second partial signal can also be called a second stream signal. For another example, at least two partial signals can also be called at least two stream signals.

It can also be understood that in each embodiment of the present application, the interaction between the terminal device and the network device is mainly used as an example for illustrative description, and the present application is not limited thereto. The terminal device can be replaced by a sending end device, which can be a terminal device or a network device; the network device can be replaced by a receiving end device, which can be a terminal device or a network device.

It can also be understood that in the various embodiments of the present application, the beam is mainly used as an example for illustrative description, and the beam can also be replaced by an antenna panel.

It can also be understood that some optional features in the embodiments of the present application may not depend on other features in some scenarios, or may be combined with other features in some scenarios, without limitation.

It can also be understood that the solutions in the various embodiments of the present application can be used in reasonable combination, and the explanations or descriptions of the various terms appearing in the embodiments can be mutually referenced or explained in the various embodiments, without limitation.

It can also be understood that in the above-mentioned various method embodiments, the methods and operations implemented by the communication device can also be implemented by the communication device. It is implemented by component parts (such as chips or circuits).

Corresponding to the methods given in the above-mentioned method embodiments, the embodiments of the present application also provide corresponding devices, which include modules for executing the corresponding methods in the above-mentioned method embodiments. The module can be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the above-mentioned method embodiments are also applicable to the following device embodiments.

Referring to FIG. 7 , as an example, FIG. 7 is a schematic block diagram of a communication device 700 provided in an embodiment of the present application. The device 700 includes a transceiver unit 710 and a processing unit 720. The transceiver unit 710 can be used to implement corresponding communication functions. The transceiver unit 710 can also be called a communication interface or a communication unit. The processing unit 720 can be used to perform data processing, such as single carrier processing of modulation symbols.

Optionally, the device 700 also includes a storage unit, which can be used to store instructions and/or data, and the processing unit 720 can read the instructions and/or data in the storage unit so that the device implements the actions of the communication device (such as a sending end device or a receiving end device) in the aforementioned method embodiments.

Optionally, the transceiver unit 710 may include a receiving unit and/or a sending unit. The receiving unit may be used to perform the receiving-related operations in the above method embodiment, and the sending unit may be used to perform the sending-related operations in the above method embodiment. The receiving unit and the sending unit may be integrated together, or may be separately arranged.

In one design, the device 700 may be the sending end device (such as a terminal device or a network device) in the aforementioned embodiment, or may be a component of the sending end device (such as a chip). The device 700 may implement the steps or processes corresponding to those performed by the sending end device in the above method embodiment, wherein the transceiver unit 710 may be used to perform the transceiver-related operations of the sending end device in the above method embodiment, and the processing unit 720 may be used to perform the processing-related operations of the sending end device in the above method embodiment.

In one possible implementation, the processing unit 720 is used to modulate the coded bit stream to obtain modulation symbols; the processing unit 720 is also used to divide the modulation symbols into at least two parts of modulation symbols, and the at least two parts of modulation symbols include a first part of modulation symbols and a second part of modulation symbols; the processing unit 720 is also used to perform single-carrier processing on the first part of modulation symbols and the second part of modulation symbols, respectively, to obtain a first part of the signal and a second part of the signal; the transceiver unit 710 is used to send the first part of the signal using a first beam on a first frequency domain resource, and send the second part of the signal using a second beam on a second frequency domain resource.

Optionally, the single carrier processing includes: a discrete Fourier transform DFT operation.

Optionally, the first ratio and the second ratio are the same, wherein the first ratio is the ratio between the number of frequency domain units in the first frequency domain resources and the number of frequency domain units in the second frequency domain resources, and the second ratio is the ratio between the number of symbols in the first part of the modulation symbols and the number of symbols in the second part of the modulation symbols.

Optionally, the processing unit 720 is further configured to divide the modulation symbol into at least two parts of modulation symbols, including: the processing unit 720 is further configured to divide the modulation symbol into at least two parts of modulation symbols on average.

Optionally, the processing unit 720 is also used to equally divide the modulation symbols into at least two parts of modulation symbols, including: the processing unit 720 is also used to equally divide the modulation symbols into a first part of modulation symbols and a second part of modulation symbols, wherein the first half of the modulation symbols are the first part of modulation symbols, and the second half of the modulation symbols are the second part of modulation symbols; or, the symbols with odd numbers in the modulation symbols are the first part of modulation symbols, and the symbols with even numbers in the modulation symbols are the second part of modulation symbols.

Optionally, the number of frequency domain units in the first frequency domain resource and the second frequency domain resource is the same.

Optionally, the first frequency domain resources and the second frequency domain resources are allocated resources. If the allocated resources also include third frequency domain resources, no signal is transmitted on the third frequency domain resources, or the signal transmitted on the third frequency domain resources is a preset signal.

Optionally, the transceiver unit 710 is also used to receive first indication information, and the first indication information satisfies any of the following items: the first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or, the first indication information includes the first TPMI or the second TPMI, the first TPMI and the second TPMI are associated with each other, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or, the first indication information includes a third TPMI, and the third TPMI is used to precode the first part of the signal and the second part of the signal.

Optionally, the transceiver unit 710 is also used to send a first demodulation reference signal DMRS and a second DMRS, the first DMRS is used to assist in demodulating the first part of the signal, and the second DMRS is used to assist in demodulating the second part of the signal, the antenna ports of the first DMRS and the second DMRS are the same, the first DMRS corresponds to the first frequency domain resources, and the second DMRS corresponds to the second frequency domain resources.

Optionally, the transceiver unit 710 is also used to receive second indication information, the second indication information indicating: sending each part of the at least two parts of the signal on different frequency domain resources, and/or sending each part of the at least two parts of the signal using different beams.

Optionally, the transceiver unit 710 is further configured to receive third indication information, where the third indication information indicates a transmission resource, and the transmission resource includes a first A first frequency domain resource and a second frequency domain resource.

Optionally, the transmission resource is a configuration authorized CG resource.

The device 700 can implement the steps or processes executed by the sending end device in the method embodiment according to the embodiment of the present application, and the device 700 may include a unit for executing the method executed by the sending end device in the embodiments shown in Figures 2 to 6.

In another design, the device 700 may be the receiving end device (such as a terminal device or a network device) in the aforementioned embodiment, or may be a component of the receiving end device (such as a chip). The device 700 may implement the steps or processes executed by the receiving end device in the above method embodiment, wherein the transceiver unit 710 may be used to execute the transceiver-related operations of the receiving end device in the above method embodiment, and the processing unit 720 may be used to execute the processing-related operations of the receiving end device in the above method embodiment.

In one possible implementation, the transceiver unit 710 is used to receive a first part of the signal using a first beam on a first frequency domain resource, and to receive a second part of the signal using a second beam on a second frequency domain resource, wherein the first part of the signal and the second part of the signal are obtained by performing single-carrier processing on the first part of the modulation symbols and the second part of the modulation symbols, respectively; and the processing unit 720 is used to jointly demodulate the first part of the signal and the second part of the signal.

Optionally, the number of symbols in the first part of the modulation symbols is the same as the number of symbols in the second part of the modulation symbols.

Optionally, the first part of the modulation symbols and the second part of the modulation symbols belong to modulation symbols, wherein the first half of the modulation symbols in the modulation symbols are the first part of the modulation symbols, and the second half of the modulation symbols in the modulation symbols are the second part of the modulation symbols; or, the symbols numbered odd in the modulation symbols are the first part of the modulation symbols, and the symbols numbered even in the modulation symbols are the second part of the modulation symbols.

Optionally, the transceiver unit 710 is also used to send a first indication information, and the first indication information satisfies any of the following items: the first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or, the first indication information includes the first TPMI or the second TPMI, the first TPMI and the second TPMI are associated with each other, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or, the first indication information includes a third TPMI, and the third TPMI is used to precode the first part of the signal and the second part of the signal.

Optionally, the transceiver unit 710 is also used to receive a first demodulation reference signal DMRS and a second DMRS, the antenna ports of the first DMRS and the second DMRS are the same, the first DMRS corresponds to a first frequency domain resource, and the second DMRS corresponds to a second frequency domain resource; the processing unit 720 is also used to use the first DMRS to assist in demodulating the first signal, and use the second DMRS to assist in demodulating the second signal.

Optionally, the transceiver unit 710 is also used to send second indication information, the second indication information indicating: sending each part of the at least two parts of the signal on different frequency domain resources, and/or using different beams to send each part of the at least two parts of the signal.

Optionally, the transceiver unit 710 is further used to send third indication information, where the third indication information indicates transmission resources, and the transmission resources include first frequency domain resources and second frequency domain resources.

The device 700 can implement the steps or processes executed by the receiving end device in the method embodiment according to the embodiment of the present application, and the device 700 may include a unit for executing the method executed by the receiving end device in the embodiments shown in Figures 2 to 6.

A more detailed description of the device 700 can be directly obtained by referring to the relevant description in the above method embodiment, which will not be repeated here.

It should be understood that the specific process of each unit executing the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, it will not be repeated here.

It should also be understood that the device 700 here is embodied in the form of a functional unit. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combined logic circuit and/or other suitable components that support the described functions. In an optional example, those skilled in the art may understand that the device 700 may specifically be a communication device (such as a transmitting end device or a receiving end device) in the above-mentioned embodiments, and may be used to execute the above-mentioned method embodiments corresponding to the communication device. To avoid repetition, the various processes and/or steps will not be described here.

The device 700 of each of the above schemes has the function of implementing the corresponding steps performed by the communication device (such as a transmitting end device, and such as a receiving end device) in the above method. The function can be implemented by hardware, or by hardware executing the corresponding software implementation. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor to respectively perform the transceiver operations and related processing operations in each method embodiment.

In addition, the transceiver unit 710 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit.

It should be noted that the device in FIG. 7 may be the device in the aforementioned embodiment, or may be a chip or a chip system, such as a system on chip (SoC). The transceiver unit may be an input and output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip. This is not limited here.

Referring to FIG8 , as an example, FIG8 is a schematic block diagram of a communication device 800 provided in an embodiment of the present application. The device 800 includes a processor 810, and the processor 810 is coupled to a memory 820. Optionally, the memory 820 is further included, which is used to store computer programs or instructions and/or data, and the processor 810 is used to execute the computer programs or instructions stored in the memory 820, or read the data stored in the memory 820, so as to execute the methods in the above method embodiments.

Optionally, there are one or more processors 810 .

Optionally, the memory 820 is one or more.

Optionally, the memory 820 is integrated with the processor 810 or is separately provided.

Optionally, as shown in Fig. 8, the device 800 further includes a transceiver 830, and the transceiver 830 is used for receiving and/or sending signals. For example, the processor 810 is used for controlling the transceiver 830 to receive and/or send signals.

Optionally, when the communication device 800 is a chip, the transceiver 830 may be an input and output interface of the chip, wherein the input interface implements a receiving operation and the output interface implements a sending operation. As a solution, the device 800 is used to implement the operations performed by the communication device in each of the above method embodiments.

For example, the processor 810 is configured to execute a computer program or instruction stored in the memory 820 to implement related operations of the transmitting end device or the receiving end device in each of the above method embodiments.

In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 810 or an instruction in the form of software. The method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in the processor for execution. The software module can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 820, and the processor 810 reads the information in the memory 820 and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.

It should be understood that in the embodiments of the present application, the processor may be one or more integrated circuits for executing related programs to execute the embodiments of the methods of the present application.

The processor (e.g., processor 810) may include one or more processors and be implemented as a combination of computing devices. The processor may include one or more of the following: a microprocessor, a microcontroller, a digital signal processor (DSP), a digital signal processing device (DSPD), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a programmable logic device (PLD), a gating logic, a transistor logic, a discrete hardware circuit, a processing circuit or other suitable hardware, firmware and/or a combination of hardware and software for performing the various functions described in the present disclosure. The processor may be a general-purpose processor or a dedicated processor. For example, the processor 810 may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data. The central processing unit may be used to enable the device to execute a software program and process data in the software program. In addition, a portion of the processor may also include a non-volatile random access memory. For example, the processor may also store information about the type of device.

Program in this application is used to refer to software in a broad sense. Non-limiting examples of software include: program code, program, subroutine, instruction, instruction set, code, code segment, software module, application, or software application, etc. The program can be run in a processor and/or computer. So that the device performs various functions and/or processes described in this application.

The memory (e.g., memory 820) can store data required by the processor (e.g., processor 810) when executing software. The memory can be implemented using any suitable storage technology. For example, the memory can be any available storage medium that can be accessed by the processor and/or computer. Non-limiting examples of storage media include random access memory (RAM), Read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct rambus RAM (DR RAM), removable media, optical disk storage, magnetic disk storage media, magnetic storage devices, flash memory, registers, state memory, remote mounted memory, local or remote memory components, or any other medium capable of carrying or storing software, data or information and accessible by a processor/computer. It should be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

The memory (e.g., memory 820) and the processor (e.g., processor 810) may be provided separately or integrated together. The memory may be used to connect to the processor so that the processor can read information from the memory and store and/or write information in the memory. The memory may be integrated in the processor. The memory and the processor may be provided in an integrated circuit (e.g., the integrated circuit may be provided in a UE or other network node).

Referring to FIG. 9 , as an example, FIG. 9 is a schematic block diagram of a chip system 900 provided in an embodiment of the present application. The chip system 900 (or also referred to as a processing system) includes a logic circuit 910 and an input/output interface (input/output interface) 920.

Among them, the logic circuit 910 can be a processing circuit in the chip system 900. The logic circuit 910 can be coupled to the storage unit and call the instructions in the storage unit so that the chip system 900 can implement the methods and functions of each embodiment of the present application. The input/output interface 920 can be an input/output circuit in the chip system 900, outputting information processed by the chip system 900, or inputting data or signaling information to be processed into the chip system 900 for processing.

As a solution, the chip system 900 is used to implement the operations performed by the communication device in the above method embodiments.

For example, the logic circuit 910 is used to implement the processing-related operations performed by the transmitting end device in the above method embodiments, such as the processing-related operations performed by the transmitting end device in the embodiment shown in Figure 2, or the processing-related operations performed by the transmitting end device in the embodiment shown in Figure 5; the input/output interface 920 is used to implement the sending and/or receiving related operations performed by the transmitting end device in the above method embodiments, such as the sending and/or receiving related operations performed by the transmitting end device in the embodiment shown in Figure 2, or the sending and/or receiving related operations performed by the transmitting end device in the embodiment shown in Figure 5.

For another example, the logic circuit 910 is used to implement the processing-related operations performed by the receiving end device in the above method embodiments, such as the processing-related operations performed by the receiving end device in the embodiment shown in Figure 2, or the processing-related operations performed by the receiving end device in the embodiment shown in Figure 5; the input/output interface 920 is used to implement the sending and/or receiving-related operations performed by the receiving end device in the above method embodiments, such as the sending and/or receiving-related operations performed by the receiving end device in the embodiment shown in Figure 2, or the sending and/or receiving-related operations performed by the receiving end device in the embodiment shown in Figure 5.

The embodiment of the present application also provides a computer-readable storage medium on which are stored computer instructions for implementing the methods executed by a communication device (such as a transmitting end device or a receiving end device) in the above-mentioned method embodiments.

The present application also provides a computer program product, comprising instructions, which, when executed by a computer, implement the methods performed by a communication device (such as a transmitting device or a receiving device) in the above-mentioned method embodiments.

An embodiment of the present application further provides a communication system, which includes the transmitting end device and the receiving end device in the above embodiments.

The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, which will not be repeated here.

In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement the solution provided by the present application.

In addition, the functional units in the various embodiments of the present application may be integrated into one unit, or each unit may be physically separate. There are two or more units, or two or more units can be integrated into one unit.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing computer program instructions on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. For example, the computer can be a personal computer, a server, or a network device, etc. The computer instruction can be stored in a computer-readable storage medium, or transmitted from a computer-readable storage medium to another computer-readable storage medium, for example, the computer instruction can be transmitted from a website site, a computer, a server or a data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. About computer-readable storage medium, it can be described with reference to the above.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A single carrier communication method, characterized by comprising:

Modulating the coded bit stream to obtain at least two parts of modulation symbols, wherein the at least two parts of modulation symbols include a first part of modulation symbols and a second part of modulation symbols;

Performing single carrier processing on the first part of modulation symbols and the second part of modulation symbols respectively to obtain a first part of signals and a second part of signals;

The first part of the signal is sent using a first beam on a first frequency domain resource, and the second part of the signal is sent using a second beam on a second frequency domain resource.
The method according to claim 1, characterized in that the step of modulating the coded bit stream to obtain at least two parts of modulation symbols comprises:

The coded bit stream is modulated to obtain modulation symbols, and the modulation symbols are divided into the at least two modulation symbol parts.
The method according to claim 2 is characterized in that the modulation symbol is evenly divided into the at least two parts of modulation symbols.
The method according to claim 3, characterized in that the modulation symbol is evenly divided into the first part of modulation symbols and the second part of modulation symbols,

The first half of the modulation symbols in the modulation symbols are the first part of the modulation symbols, and the second half of the modulation symbols in the modulation symbols are the second part of the modulation symbols; or, the symbols numbered as odd numbers in the modulation symbols are the first part of the modulation symbols, and the symbols numbered as even numbers in the modulation symbols are the second part of the modulation symbols.
The method according to any one of claims 1 to 4, characterized in that the method further comprises:

Receive first indication information, where the first indication information satisfies any of the following:

The first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or,

The first indication information includes a first TPMI or a second TPMI, the first TPMI and the second TPMI are associated with each other, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or,

The first indication information includes a third TPMI, and the third TPMI is used to precode the first part of the signal and the second part of the signal.
The method according to any one of claims 1 to 5, characterized in that the method further comprises:

A first demodulation reference signal DMRS and a second DMRS are sent, wherein the first DMRS is used to assist in demodulating the first part of the signal, and the second DMRS is used to assist in demodulating the second part of the signal, the antenna ports of the first DMRS and the second DMRS are the same, the first DMRS corresponds to the first frequency domain resources, and the second DMRS corresponds to the second frequency domain resources.
The method according to any one of claims 1 to 6, characterized in that before the first part of the signal is sent using a first beam on the first frequency domain resource and the second part of the signal is sent using a second beam on the second frequency domain resource, the method further comprises:

Receive second indication information, wherein the second indication information indicates: sending each of the at least two signal parts on different frequency domain resources, and/or sending each of the at least two signal parts using different beams.
The method according to any one of claims 1 to 7, characterized in that the method further comprises:

Receive third indication information, where the third indication information indicates transmission resources, and the transmission resources include the first frequency domain resources and the second frequency domain resources.
A single carrier communication method, characterized by comprising:

Receiving a first part of the signal on a first frequency domain resource, and receiving a second part of the signal on a second frequency domain resource, wherein the first part of the signal and the second part of the signal are obtained by performing single carrier processing on the first part of the modulation symbols and the second part of the modulation symbols respectively;

The first part of the signal and the second part of the signal are jointly demodulated.
The method according to claim 9 is characterized in that the number of symbols in the first part of the modulation symbols is the same as the number of symbols in the second part of the modulation symbols.
The method according to claim 10, characterized in that the first part of the modulation symbols and the second part of the modulation symbols belong to modulation symbols,

The first half of the modulation symbols in the modulation symbols are the first part of the modulation symbols, and the second half of the modulation symbols in the modulation symbols are the second part of the modulation symbols; or, the symbols numbered as odd numbers in the modulation symbols are the first part of the modulation symbols, and the symbols numbered as even numbers in the modulation symbols are the second part of the modulation symbols.
The method according to any one of claims 9 to 11, characterized in that the method further comprises:

Sending first indication information, where the first indication information satisfies any of the following:

The first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or,

The first indication information includes a first TPMI or a second TPMI, the first TPMI and the second TPMI are associated with each other, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or,

The first indication information includes a third TPMI, and the third TPMI is used to precode the first part of the signal and the second part of the signal.
The method according to any one of claims 9 to 12, characterized in that the method further comprises:

receiving a first demodulation reference signal DMRS and a second DMRS, where the first DMRS and the second DMRS have the same antenna port, the first DMRS corresponds to the first frequency domain resource, and the second DMRS corresponds to the second frequency domain resource;

The first DMRS is used to assist in demodulating the first signal, and the second DMRS is used to assist in demodulating the second signal.
The method according to any one of claims 9 to 13, characterized in that before receiving the first part of the signal on the first frequency domain resource and receiving the second part of the signal on the second frequency domain resource, the method further comprises:

Send second indication information, wherein the second indication information indicates: sending each part of the at least two parts of the signal on different frequency domain resources, and/or using different beams to send each part of the at least two parts of the signal.
The method according to any one of claims 9 to 14, characterized in that the method further comprises:

Send third indication information, where the third indication information indicates transmission resources, and the transmission resources include the first frequency domain resources and the second frequency domain resources.
The method according to any one of claims 1 to 15, characterized in that the single carrier processing comprises: a discrete Fourier transform DFT operation.
The method according to any one of claims 1 to 16 is characterized in that the ratio between the number of frequency domain units in the first frequency domain resources and the number of frequency domain units in the second frequency domain resources is the same as the ratio between the number of symbols in the first part of the modulation symbols and the number of symbols in the second part of the modulation symbols.
The method according to any one of claims 1 to 17, characterized in that

The number of frequency domain units in the first frequency domain resource and the number of frequency domain units in the second frequency domain resource are the same.
The method according to any one of claims 1 to 17, characterized in that

The first frequency domain resources and the second frequency domain resources are allocated resources. If the allocated resources also include third frequency domain resources, no signal is transmitted on the third frequency domain resources, or the signal transmitted on the third frequency domain resources is a preset signal.
The method according to claim 8 or 15 is characterized in that the transmission resource is a configured authorized CG resource.
A communication device, comprising: a transceiver unit and a processing unit,

The processing unit is used to modulate the coded bit stream to obtain at least two parts of modulation symbols, wherein the at least two parts of modulation symbols include a first part of modulation symbols and a second part of modulation symbols;

The processing unit is further configured to perform single-carrier processing on the first part of modulation symbols and the second part of modulation symbols respectively to obtain a first part of signals and a second part of signals;

The transceiver unit is configured to send the first part of the signal using a first beam on a first frequency domain resource, and send the second part of the signal using a second beam on a second frequency domain resource.
The apparatus according to claim 21, wherein the processing unit is configured to modulate the coded bit stream to obtain at least two parts of modulation symbols, including:

The processing unit is used to modulate the coded bit stream to obtain modulation symbols, and the modulation symbols are divided into the at least two modulation symbol parts.
The apparatus according to claim 22, wherein the modulation symbol is evenly divided into the at least two modulation symbols.
The apparatus according to claim 23, wherein the modulation symbol is evenly divided into the first part of modulation symbols and the second part of modulation symbols,

The first half of the modulation symbols in the modulation symbols are the first part of the modulation symbols, and the second half of the modulation symbols in the modulation symbols are the second part of the modulation symbols; or, the symbols numbered as odd numbers in the modulation symbols are the first part of the modulation symbols, and the symbols numbered as even numbers in the modulation symbols are the second part of the modulation symbols.
The device according to any one of claims 21 to 24, characterized in that the transceiver unit is further used for:

Receive first indication information, where the first indication information satisfies any of the following:

The first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or,

The first indication information includes a first TPMI or a second TPMI, the first TPMI and the second TPMI are associated with each other, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or,

The first indication information includes a third TPMI, and the third TPMI is used to precode the first part of the signal and the second part of the signal.
The device according to any one of claims 21 to 25, characterized in that the transceiver unit is further used for:

A first demodulation reference signal DMRS and a second DMRS are sent, wherein the first DMRS is used to assist in demodulating the first part of the signal, and the second DMRS is used to assist in demodulating the second part of the signal, the antenna ports of the first DMRS and the second DMRS are the same, the first DMRS corresponds to the first frequency domain resources, and the second DMRS corresponds to the second frequency domain resources.
The device according to any one of claims 21 to 26, characterized in that the transceiver unit is further used for:

Receive second indication information, wherein the second indication information indicates: sending each of the at least two signal parts on different frequency domain resources, and/or sending each of the at least two signal parts using different beams.
The device according to any one of claims 21 to 27, characterized in that the transceiver unit is further used for:

Receive third indication information, where the third indication information indicates transmission resources, and the transmission resources include the first frequency domain resources and the second frequency domain resources.
A communication device, comprising: a transceiver unit and a processing unit,

The transceiver unit is configured to receive a first portion of signals on a first frequency domain resource, and receive a second portion of signals on a second frequency domain resource, wherein the first portion of signals and the second portion of signals are obtained by performing single carrier processing on the first portion of modulation symbols and the second portion of modulation symbols, respectively;

The processing unit is used to jointly demodulate the first part of the signal and the second part of the signal.
The apparatus according to claim 29 is characterized in that the number of symbols in the first part of the modulation symbols is the same as the number of symbols in the second part of the modulation symbols.
The apparatus according to claim 30, wherein the first part of the modulation symbols and the second part of the modulation symbols belong to modulation symbols,

The first half of the modulation symbols in the modulation symbols are the first part of the modulation symbols, and the second half of the modulation symbols in the modulation symbols are the second part of the modulation symbols; or, the symbols numbered as odd numbers in the modulation symbols are the first part of the modulation symbols, and the symbols numbered as even numbers in the modulation symbols are the second part of the modulation symbols.
The device according to any one of claims 29 to 31, characterized in that the transceiver unit is further used for:

Sending first indication information, where the first indication information satisfies any of the following:

The first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or,

The first indication information includes a first TPMI or a second TPMI, the first TPMI and the second TPMI are associated with each other, the first TPMI is used to precode the first part of the signal, and the second TPMI is used to precode the second part of the signal; or,

The first indication information includes a third TPMI, and the third TPMI is used to precode the first part of the signal and the second part of the signal.
The device according to any one of claims 29 to 32, characterized in that

The transceiver unit is further used to: receive a first demodulation reference signal DMRS and a second DMRS, the first DMRS and the second DMRS have the same antenna port, the first DMRS corresponds to the first frequency domain resource, and the second DMRS corresponds to the second frequency domain resource;

The processing unit is further configured to use the first DMRS to assist in demodulating the first signal, and use the second DMRS to assist in demodulating the second signal.
The device according to any one of claims 29 to 33, characterized in that the transceiver unit is further used for:

Send second indication information, wherein the second indication information indicates: sending each part of the at least two parts of the signal on different frequency domain resources, and/or using different beams to send each part of the at least two parts of the signal.
The device according to any one of claims 29 to 34, characterized in that the transceiver unit is further used for:

Send third indication information, where the third indication information indicates transmission resources, and the transmission resources include the first frequency domain resources and the second frequency domain resources.
The device according to any one of claims 21 to 35 is characterized in that the single carrier processing includes: discrete Fourier transform DFT operation.
The device according to any one of claims 21 to 36 is characterized in that the ratio between the number of frequency domain units in the first frequency domain resources and the number of frequency domain units in the second frequency domain resources is the same as the ratio between the number of symbols in the first part of the modulation symbols and the number of symbols in the second part of the modulation symbols.
The device according to any one of claims 21 to 37, characterized in that

The number of frequency domain units in the first frequency domain resource and the number of frequency domain units in the second frequency domain resource are the same.
The device according to any one of claims 21 to 37, characterized in that

The first frequency domain resources and the second frequency domain resources are allocated resources. If the allocated resources also include third frequency domain resources, no signal is transmitted on the third frequency domain resources, or the signal transmitted on the third frequency domain resources is a preset signal.
The device according to claim 28 or 35 is characterized in that the transmission resource is a configured authorized CG resource.
A communication device, characterized in that it comprises a processor, wherein the processor is used to execute a computer program or instruction stored in a memory so that the device performs the method according to any one of claims 1 to 20.
The device according to claim 41, characterized in that the device also includes the memory and/or the communication interface, the communication interface is coupled to the processor,

The communication interface is used to input and/or output information.
The device according to any one of claims 21 to 42 is characterized in that the device is any one of the following: a chip, a chip system, or a circuit.
A computer-readable storage medium, characterized in that a computer program or instruction is stored on the computer-readable storage medium, and when the computer program or instruction is executed on a communication device, the communication device executes the method as described in any one of claims 1 to 20.
A computer program product, characterized in that the computer program product comprises a computer program or instructions for executing the method according to any one of claims 1 to 20.