CN117793905A

CN117793905A - Single carrier communication method and communication device

Info

Publication number: CN117793905A
Application number: CN202211191236.9A
Authority: CN
Inventors: 袁世通; 刘凤威; 陈雷; 樊波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2024-03-29
Also published as: WO2024067305A1

Abstract

The application provides a single carrier communication method and a communication device. The method may include: modulating the coded bit stream to obtain at least two parts of modulation symbols, wherein the at least two parts of modulation symbols comprise a first part of modulation symbols and a second part of modulation symbols; carrying out 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 portion of signals is transmitted using a first beam on a first frequency domain resource and the second portion of signals is transmitted using a second beam on a second frequency domain resource. Based on the application, the frequency division multiplexing of the single carrier transmission scene can be realized.

Description

Single carrier communication method and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a single carrier communication method and a communication apparatus.

Background

In the uplink single carrier transmission scenario, the transmitting end may transmit data by using multiple antenna panels or multiple beams at the same time. The existing downlink frequency division multiplexing mode comprises two schemes: one scheme is to transmit two parts of Resource Blocks (RBs) after layer mapping of one redundancy version (redundant version, RV) based on two transmission points (transmitting and receiving point, TRP) or two wave beams, respectively; another scheme is to map multiple RVs on different RBs, and repeat frequency division, and transmit the RVs based on two TRPs or two wave beams, respectively.

However, the existing downlink frequency division multiplexing mode is not friendly to the single carrier, so that multiplexing the existing downlink frequency division multiplexing mode directly in the uplink single carrier transmission scene can affect the transmission performance.

Disclosure of Invention

The application provides a single carrier communication method and a communication device to realize frequency division multiplexing of a single carrier transmission scene.

In a first aspect, a single carrier communication method is provided, which may be performed by a communication apparatus (such as a terminal device, e.g. a network device) or may also be performed by a component (such as a chip or a circuit) of the communication apparatus, which is not limited.

The method may include: modulating the coded bit stream to obtain at least two parts of modulation symbols, wherein the at least two parts of modulation symbols comprise a first part of modulation symbols and a second part of modulation symbols; carrying out 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 portion of signals is transmitted using a first beam on a first frequency domain resource and the second portion of signals is transmitted using a second beam on a second frequency domain resource.

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

Based on the technical scheme, under the single carrier transmission scene, each part of modulation symbols in at least two parts of modulation symbols can be processed by single carrier to obtain at least two parts of signals, and then different wave beams can be adopted to transmit each part of signals, so that the space division multiplexing of the multi-stream signals is realized. In addition, the at least two parts of signals can also be transmitted by adopting different frequency domain resources, so that the frequency division-space division multiplexing of the multi-stream signals can also be realized. In addition, since each part of modulation symbols is processed by single carrier, even if the transmission quality on part of frequency domain resources is bad, the demodulation effect on the signals on the other part of frequency domain resources is not great, and the overall transmission performance can be improved.

With reference to the first aspect, in certain implementations of the first aspect, the single carrier processing includes: discrete fourier transform, DFT, operation.

With reference to the first aspect, in certain implementations of the first aspect, a 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 a ratio between the number of symbols in the first partial modulation symbol and the number of symbols in the second partial modulation symbol.

For example, the first ratio is a ratio between a number of frequency domain units in the first frequency domain resource and a number of frequency domain units in the second frequency domain resource, and the second ratio is a ratio between a number of symbols in the first partial modulation symbol and a number of symbols in the second partial modulation symbol, the first ratio and the second ratio being 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 modulation symbols and the number of symbols in the second part of modulation symbols. In this way, resources for transmitting each part of signals (such as the first part of signals and the second part of signals) can be reasonably allocated, and the utilization rate of the resources is improved.

With reference to the first aspect, in some implementations of the first aspect, modulating the coded bit stream to obtain at least two parts of modulation symbols includes: the coded bit stream is modulated to obtain modulation symbols, which are divided into at least two parts of modulation symbols.

With reference to the first aspect, in certain implementations of the first aspect, the modulation symbols are equally divided into at least two parts of modulation symbols.

Based on the technical scheme, the modulation symbols can be equally divided into at least two parts of modulation symbols, and the implementation is simple and easy.

With reference to the first aspect, in some 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, where a first half of the modulation symbols are first part of modulation symbols and a second half of the modulation symbols are second part of modulation symbols; alternatively, the odd numbered symbols in the modulation symbols are the first partial modulation symbols and the even numbered symbols in the modulation symbols are the second partial modulation symbols.

With reference to the first aspect, in certain implementations of the first aspect, the number of frequency domain units in the first frequency domain resource and the second frequency domain resource is the same.

Based on the above technical solution, the resources allocated to the terminal device for transmitting signals may be equally divided into two parts, which are respectively used for transmitting the two parts of signals.

With reference to the first aspect, in some implementations of the first aspect, the first frequency domain resource and the second frequency domain resource belong to allocated resources, and if the allocated resources further include a third frequency domain resource, no signal is transmitted on the third frequency domain resource, or a signal transmitted on the third frequency domain resource is a preset signal.

Based on the above technical solution, if the frequency domain resource allocated to the terminal device is to be equally divided into two parts, which are used for transmitting the first part of signal and the second part of signal respectively, if the number of frequency domain units in the allocated resource is odd, for the redundant frequency domain unit, no signal may be transmitted, or a preset signal may be transmitted.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: receiving first indication information, wherein the first indication information meets any one of the following: the first indication information comprises a first Transmission Precoding Matrix Indication (TPMI) and a second TPMI, wherein the first TPMI is used for precoding a first part of signals, and the second TPMI is used for precoding a second part of signals; or the first indication information comprises a first TPMI or a second TPMI, the first TPMI and the second TPMI have an association relation, the first TPMI is used for precoding the first part of signals, and the second TPMI is used for precoding the second part of signals; or, the first indication information includes a third TPMI for precoding the first partial signal and the second partial signal.

Based on the above technical solution, two TPMI may be provided, which are respectively used for the first frequency domain resource and the second frequency domain resource, that is, the first portion of signal transmitted on the first frequency domain resource and the second portion of signal transmitted on the second frequency domain resource, so that flexibility may be improved.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: and transmitting a first demodulation reference signal (DMRS) and a second DMRS, wherein the first DMRS is used for assisting in demodulating the first part of signals, the second DMRS is used for assisting in demodulating the second part of signals, antenna ports of the first DMRS and the second DMRS are the same, the first DMRS corresponds to the first frequency domain resource, and the second DMRS corresponds to the second frequency domain resource.

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

With reference to the first aspect, in certain implementations of the first aspect, the method further includes, before transmitting the first partial signal on the first frequency domain resource using the first beam and transmitting the second partial signal on the second frequency domain resource using the second beam: receiving second indication information, wherein the second indication information indicates: each of the at least two partial signals is transmitted on a different frequency domain resource and/or transmitted using a different beam.

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

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: and receiving third indication information, wherein the third indication information indicates transmission resources, and the transmission resources comprise first frequency domain resources and second frequency domain resources.

With reference to the first aspect, in certain implementations of the first aspect, the transmission resource is a configuration grant CG resource.

In a second aspect, a single carrier communication method is provided, which may be performed by a communication apparatus (such as a terminal device, e.g. a network device) or may also be performed by a component (such as a chip or a circuit) of the communication apparatus, which is not limited.

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

The first partial signal and the second partial signal are transmitted using different beams, for example.

With reference to the second aspect, in certain implementations of the second aspect, the single carrier processing includes: discrete fourier transform, DFT, operation.

With reference to the second aspect, in certain implementations of the second aspect, the first ratio and the second ratio are the same, where the first ratio is a ratio between a number of frequency domain units in the first frequency domain resource and a number of frequency domain units in the second frequency domain resource, and the second ratio is a ratio between a number of symbols in the first portion of modulation symbols and a number of symbols in the second portion of modulation symbols.

With reference to the second aspect, in certain implementations of the second aspect, the number of symbols in the first partial modulation symbol is the same as the number of symbols in the second partial modulation symbol.

With reference to the second aspect, in some implementations of the second aspect, the first portion of modulation symbols and the second portion of modulation symbols belong to modulation symbols, where a first half of modulation symbols in the modulation symbols are first portion of modulation symbols, and a second half of modulation symbols in the modulation symbols are second portion of modulation symbols; alternatively, the odd numbered symbols in the modulation symbols are the first partial modulation symbols and the even numbered symbols in the modulation symbols are the second partial modulation symbols.

With reference to the second aspect, in certain implementations of the second aspect, the number of frequency domain units in the first frequency domain resource and the second frequency domain resource is the same.

With reference to the second aspect, in some implementations of the second aspect, the first frequency domain resource and the second frequency domain resource belong to allocated resources, and if the allocated resources further include a third frequency domain resource, no signal is transmitted on the third frequency domain resource, or a signal transmitted on the third frequency domain resource is a preset signal.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: transmitting first indication information, wherein the first indication information meets any one of the following: the first indication information comprises a first Transmission Precoding Matrix Indication (TPMI) and a second TPMI, wherein the first TPMI is used for precoding a first part of signals, and the second TPMI is used for precoding a second part of signals; or the first indication information comprises a first TPMI or a second TPMI, the first TPMI and the second TPMI have an association relation, the first TPMI is used for precoding the first part of signals, and the second TPMI is used for precoding the second part of signals; or, the first indication information includes a third TPMI for precoding the first partial signal and the second partial signal.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: receiving a first demodulation reference signal (DMRS) and a second DMRS, wherein 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 first DMRS is employed to assist in demodulating the first signal and the second DMRS is employed to assist in demodulating the second signal.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes, prior to receiving the first partial signal on the first frequency domain resource and the second partial signal on the second frequency domain resource: transmitting second indication information, wherein the second indication information indicates: each of the at least two partial signals is transmitted on a different frequency domain resource and/or transmitted using a different beam.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: and sending third indication information, wherein the third indication information indicates transmission resources, and the transmission resources comprise first frequency domain resources and second frequency domain resources.

With reference to the second aspect, in some implementations of the second aspect, the transmission resource is a configuration grant CG resource.

Regarding the advantageous effects of the second aspect, reference may be made to the relevant descriptions in the first aspect, and details are not repeated here.

In a third aspect, a single carrier communication method is provided, which may be performed by a communication apparatus (such as a terminal device, e.g. a network device) or may also be performed by a component (e.g. a chip or a circuit) of the communication apparatus, which is not limited thereto.

The method may include: carrying out single carrier modulation on the modulation symbol to obtain a modulated signal, wherein the modulated signal is divided into at least two parts of signals, and the at least two parts of signals comprise a first part of signal and a second part of signal; the first portion of signals are transmitted on the first frequency domain resource using a first beam and the second portion of signals are transmitted on the second frequency domain resource using a second beam.

Regarding the advantageous effects of the third aspect and the possible designs of the third aspect, reference may be made to the relevant descriptions in the first aspect, which are not repeated here.

In a fourth aspect, a single carrier communication method is provided, which may be performed by a communication apparatus (such as a terminal device, e.g. a network device) or may also be performed by a component (such as a chip or a circuit) of the communication apparatus, which is not limited thereto.

The method may include: receiving a first part of signals on a first frequency domain resource and receiving a second part of signals on a second frequency domain resource, wherein the first part of signals and the second part of signals are obtained by dividing modulated signals, and the modulated signals are obtained by modulating modulation symbols by a single carrier wave; the first partial signal and the second partial signal are jointly demodulated.

Regarding the advantageous effects of the fourth aspect and the possible designs of the fourth aspect, reference may be made to the relevant description in the second aspect, which is not repeated here.

In a fifth aspect, a single carrier communication method is provided, which may be performed by a communication apparatus (such as a terminal device, e.g. a network device) or may also be performed by a component (such as a chip or a circuit) of the communication apparatus, which is not limited thereto.

The method may include: receiving first indication information, wherein the first indication information meets any one of the following: the first indication information comprises a first Transmission Precoding Matrix Indication (TPMI) and a second TPMI, wherein the first TPMI is used for precoding a first part of signals, and the second TPMI is used for precoding a second part of signals; or the first indication information comprises a first TPMI or a second TPMI, the first TPMI and the second TPMI have an association relation, the first TPMI is used for precoding the first part of signals, and the second TPMI is used for precoding the second part of signals; wherein the first partial signal and the second partial signal are signals obtained by single carrier processing.

Optionally, the method further comprises: the first partial signal is precoded based on the first TPMI, and the second partial signal is precoded based on the second TPMI.

With respect to the advantageous effects of the fifth aspect and the possible designs of the first aspect, reference may be made to the relevant description in the second aspect, which is not repeated here.

In a sixth aspect, a single carrier communication method is provided, which may be performed by a communication apparatus (such as a terminal device, e.g. a network device) or may also be performed by a component (such as a chip or a circuit) of the communication apparatus, which is not limited.

The method may include: transmitting first indication information, wherein the first indication information meets any one of the following: the first indication information comprises a first Transmission Precoding Matrix Indication (TPMI) and a second TPMI, wherein the first TPMI is used for precoding a first part of signals, and the second TPMI is used for precoding a second part of signals; or the first indication information comprises a first TPMI or a second TPMI, the first TPMI and the second TPMI have an association relation, the first TPMI is used for precoding the first part of signals, and the second TPMI is used for precoding the second part of signals; wherein the first partial signal and the second partial signal are signals obtained by single carrier processing.

Regarding the advantageous effects of the sixth aspect and the possible designs of the sixth aspect, reference may be made to the related description in the second aspect, which is not repeated here.

A seventh aspect provides a communication device for performing the method of any one of the possible implementations of the first to sixth aspects. In particular, the apparatus may comprise means and/or modules, such as a processing unit and/or a communication unit, for performing the method in any of the possible implementations of the first to sixth aspects.

In one implementation, the device is a communication device (e.g., a terminal device, as well as a network device). When the apparatus 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. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input/output interface may be an input/output circuit.

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

In an eighth aspect, there is provided a communication apparatus comprising: at least one processor configured to execute a computer program or instructions stored in a memory to perform a method according to any one of the possible implementations of the first to sixth aspects. Optionally, the apparatus further comprises a memory for storing a computer program or instructions. Optionally, the apparatus further comprises a communication interface through which the processor reads the computer program or instructions stored in the memory.

In one implementation, the device is a communication device (e.g., a terminal device, as well as a network device).

In another implementation, the apparatus is a chip, a system-on-chip, or a circuit for a communication apparatus (e.g., a terminal device, and also a network device).

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

The operations such as transmitting and acquiring/receiving, etc. related to the processor may be understood as operations such as outputting and receiving, inputting, etc. by the processor, or may be understood as operations such as transmitting and receiving by the radio frequency circuit and the antenna, if not specifically stated, or if not contradicted by actual function or inherent logic in the related description, which is not limited in this application.

In a tenth aspect, a computer readable storage medium is provided, the computer readable medium storing program code for execution by a device, the program code comprising instructions for performing the method of any one of the possible implementations of the first to sixth aspects.

In an eleventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any one of the possible implementations of the first to sixth aspects described above.

A twelfth aspect provides a communication system comprising the aforementioned transmitting-end apparatus and receiving-end apparatus.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system 100 suitable for use in embodiments of the present application.

Fig. 2 is a schematic diagram of a single carrier communication method 200 according to an embodiment of the present application.

Fig. 3 is a schematic diagram of signal processing suitable for use in embodiments of the present application.

Fig. 4 is a schematic diagram applicable to embodiment 1.

Fig. 5 is a schematic diagram applicable to mode 2.

Fig. 6 is a schematic diagram of a DMRS suitable for use in embodiments of the present application.

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

Fig. 8 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 Description

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

The technical scheme provided by the application can be applied to various communication systems, such as: fifth generation (5th generation,5G) or New Radio (NR) systems, long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD) systems, and the like. The technical scheme provided by the application can also be applied to future communication systems, such as a sixth generation mobile communication system. The technical solutions provided herein may also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (machine to machine, M2M) communication, machine type communication (machine type communication, MTC), and internet of things (internet of things, ioT) communication systems or other communication systems.

The terminal device in the embodiment of the present application includes various devices having a wireless communication function, which can be used for connecting people, things, machines, and the like. The terminal device can be widely applied to various scenes, for example: cellular communication, D2D, V2X, peer to peer (P2P), M2M, MTC, ioT, virtual Reality (VR), augmented reality (augmented reality, AR), industrial control, autopilot, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city drone, robot, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery, and other scenarios. The terminal device may be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. The terminal device may be a User Equipment (UE) standard of the third generation partnership project (3rd generation partnership project,3GPP), a terminal (terminal), a fixed device, a mobile station (mobile station) device or a mobile device, a subscriber unit (subscriber unit), a handheld device, a vehicle-mounted device, a wearable device, a cellular phone (smart phone), a smart phone (smart phone), a SIP phone, a wireless data card, a personal digital assistant (personal digital assistant, PDA), a computer, a tablet computer, a notebook computer, a wireless modem, a handheld device (handset), a laptop computer (laptop computer), a computer with wireless transceiver function, a smart book, a vehicle, a satellite, a global positioning system (global positioning system, GPS) device, a target tracking device, an aircraft (e.g., a drone, a helicopter, a multi-helicopter, a tetra-helicopter, a plane, etc.), a ship, a remote control device, a smart home device, an industrial device, or a device built in the above device (e.g., a communication module in the above device, a modem, a chip, a wireless modem, or the like), or a processor connected to the wireless modem.

It should be appreciated that in some scenarios, the UE may also be used to act as a base station. For example, the UEs may act as scheduling entities that provide sidelink signals between UEs in a V2X, D2D or P2P or the like scenario.

In the embodiment of the present application, the device for implementing the function of the terminal device may be the terminal device, or may be a device capable of supporting the terminal device to implement the function, for example, a chip system or a chip, and the device may be installed in the terminal device. In the embodiment of the application, the chip system may be formed by a chip, and may also include a chip and other discrete devices.

The network device in the embodiments of the present application may be a device for communicating with a terminal device, which may also be referred to as an access network device or a radio access network device, e.g. the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (radio access network, RAN) node (or device) that accesses the terminal device to the wireless network. The base station may broadly cover or replace various names in the following, such as: a node B (NodeB), an evolved NodeB (eNB), a next generation NodeB (gNB), a relay station, an access point, a transmission point (transmitting and receiving point, TRP), a transmission point (transmitting point, TP), a master station, a secondary station, a multi-mode wireless (motor slide retainer, MSR) node, a home base station, a network controller, an access node, a wireless node, an Access Point (AP), a transmission node, a transceiver node, a baseband unit (BBU), a remote radio unit (remote radio unit, RRU), an active antenna unit (active antenna unit, AAU), a radio head (remote radio head, RRH), a Central Unit (CU), a Distributed Unit (DU), a positioning node, and the like. The base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. A base station may also refer to a communication module, modem, or chip for placement within the aforementioned device or apparatus. The base station may be a mobile switching center, a device that performs a base station function in D2D, V2X, M M communication, a network side device in a 6G network, a device that performs a base station function in a future communication system, or the like. The base stations may support networks of the same or different access technologies. The embodiment of the application does not limit the specific technology and the specific device form adopted by the network device.

The base station may be fixed or mobile. For example, a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to function as a device to communicate with another base station.

Network devices and terminal devices may be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; the device can be deployed on the water surface; but also on aerial planes, balloons and satellites. In the embodiment of the application, the scene where the network device and the terminal device are located is not limited.

A communication system suitable for use in the present application will first be briefly described as follows.

Referring to fig. 1, by way of example, fig. 1 is a schematic diagram of a wireless communication system 100 suitable for use in embodiments 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 further include at least one terminal device, such as the terminal device 120 shown in fig. 1. The network device and the terminal device may each 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 an integral number of terminal devices can be arranged in one cell. Alternatively, the network device 110 and the terminal device 120 constitute a single-cell communication system, and the cell is denoted as cell #1 without loss of generality. Network device 110 may be a network device in cell #1 or network device 110 may serve a terminal device (e.g., terminal device 120) in cell #1.

A cell is understood to be an area within the coverage of a radio signal of a network device.

It will be appreciated that fig. 1 is a simplified schematic diagram that is merely illustrative for ease of understanding, and that other network devices or other terminal devices may be included in the wireless communication system 100, which are not shown in fig. 1. The embodiment of the application can be applied to any communication scene of communication between the sending end equipment and the receiving end equipment.

As an example, the technical solution of the present application may be applicable to the scenario of transmission within a cell. The terminal equipment measures the reference signal of the non-service wave beam of the current service cell and reports the reference signal to the current service cell. According to the configuration of the network device, the terminal device may switch the service beam to the reported beam.

As another example, the technical solution of the present application may also be applicable to scenarios of inter-cell transmission. The terminal equipment measures the reference signal of the non-service cell wave beam and reports the reference signal to the current service cell. Depending on the configuration of the network device, after switching the beam, the terminal device may receive signaling/data from another cell, but without switching the serving cell. That is, the terminal device receives signals from the antenna of another cell, but the serving cell may not be changed or may be changed.

The foregoing is illustrative, and is not limiting. The technical scheme of the method and the device can be used for a scene that the terminal equipment adopts at least two beams to simultaneously carry out uplink transmission. The device for receiving the signals sent by the terminal device by adopting at least two beams at the network side can belong to different cells, or can be different TRPs or antenna panels (panels) of the same cell, and the device is not limited. In addition, the terminal device generally utilizes two panels to realize simultaneous transmission of multiple beams, so that the technical scheme of the application can be used for a scene of simultaneous transmission of multiple panels.

To facilitate an understanding of the embodiments of the present application, the terms referred to in this application are briefly described.

1. Beam (beam)

A beam is a communication resource. The beam may be embodied in an NR protocol as a spatial filter (spatial filter), or spatial filter (spatial filter) or spatial parameter (spatial parameters). The beam used to transmit the signal may be referred to as a transmit beam (transmission beam, tx beam), may be referred to as a spatial transmit filter (spatial domain transmit filter) or spatial transmit parameters (spatial domain transmit parameter); the beam used to receive the signal may be referred to as a receive beam (Rx beam), and may be referred to as a spatial receive filter (spatial domain receive filter) or spatial receive parameters (spatial domain receive parameter).

The transmit beam may refer to a distribution of signal strengths formed in spatially different directions after a signal is transmitted through an antenna, and the receive beam may refer to a signal strength distribution of a wireless signal received from the antenna in spatially different directions.

It should be understood that the above listed NR protocols are examples only for the implementation of beams and should not constitute any limitation to the present application. The present application does not exclude the possibility of defining other terms in future protocols to represent the same or similar meanings.

Furthermore, the beam may be a wide beam, or a narrow beam, or other type of beam. The technique of forming the beam may be a beamforming technique or other technique. The beamforming technique may specifically be a digital beamforming technique, an analog beamforming technique, or a hybrid digital/analog beamforming technique, etc. Different beams may be considered different resources. The same information or different information may be transmitted through different beams.

Alternatively, a plurality of beams having the same or similar communication characteristics are regarded as one beam. One or more antenna ports may be included in a beam for transmitting data channels, control channels, and sounding signals, etc. One or more antenna ports forming a beam may also be considered as a set of antenna ports.

As an example, when using a low frequency band or an intermediate frequency band, the signal may be transmitted omnidirectionally or through a wider angle; when the high-frequency band is used, due to the smaller carrier wave wavelength of the high-frequency communication system, the antenna array formed by a plurality of antenna arrays can be arranged at the transmitting end and the receiving end, the transmitting end transmits signals with a certain beam forming weight, so that the transmitted signals form beams with space directivity, and meanwhile, the receiving end receives the signals with the antenna array with the certain beam forming weight, so that the receiving power of the signals at the receiving end can be improved, and the path loss is resisted.

2. Antenna port (antenna port)

The antenna ports are simply referred to as ports. A transmit antenna identified by the receiving end device, or a spatially distinguishable transmit antenna. One antenna port may be configured for each virtual antenna, each virtual antenna may be a weighted combination of multiple physical antennas, and each antenna port may correspond to one reference signal port.

3. Reference Signal (RS)

The reference signal may also be referred to as a pilot signal (pilot signal), which is a known signal provided by the transmitting end device to the receiving device for channel estimation, channel measurement, channel sounding, channel demodulation, or the like. As an example, the reference signal may be applied to a physical layer (physical layer). The reference signals may include downlink reference signals and uplink reference signals.

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

In addition to the above-listed reference signals, the reference signal of the present application may also be one of a set of sequence signals having good correlation properties. Wherein the good correlation characteristic is that any one sequence in the set has a larger autocorrelation peak and any two sequences in the set have smaller cross correlation peaks. That is, in the embodiment of the present application, the transmitting apparatus may transmit a plurality of signals, wherein at least one signal is a sequence signal having the above-described good correlation, such as a pseudo random (pseudo random) sequence and a zodoff-chu sequence. Specifically, the correlation refers to performing a correlation calculation between one sequence signal and another sequence signal in the same set, and calculating a correlation value. Thus, for a sequence signal having good correlation characteristics, the receiving device can detect whether the signal is present or not based on the correlation. That is, a detection mechanism such as a pilot is not required for transmission of a sequence signal having correlation. Among them, as one of signals having good correlation characteristics, a reference signal (or, in other words, a pilot signal) is cited.

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

4. Quasi co-location (QCL)

QCL or quasi-parity. The QCL relationship is used to indicate that there are one or more identical or similar communication characteristics between the plurality of resources, and the same or similar communication configuration may be employed for the plurality of resources having the QCL relationship.

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

As an example, a parity indication may be used to indicate whether at least two groups of antenna ports have a parity relationship. For example, the parity indication indicates whether channel state information reference signals transmitted by at least two groups of antenna ports are from the same transmission point, or indicates whether channel state information reference signals transmitted by at least two groups of antenna ports are from the same beam group.

5. Transmission configuration indication (transmission configuration indicator, TCI)

TCI may be used to indicate TCI state (TCI-state). The QCL may be configured by a protocol middle-upper layer through a TCI-state for configuring a quasi co-sited relationship between one to two downlink reference signals and DMRSs of PDSCH. The TCI-state comprises one or two QCL relations, which characterize a certain consistency relation between the signal currently to be received and a certain reference signal known before. If a QCL relationship exists, the terminal device may use the reception or transmission parameters when previously receiving a certain reference signal to receive or transmit the upcoming signal.

The configuration information for one TCI state may include an identification of one or both reference signal resources, and an associated QCL type. When the QCL relationship is configured as one of type (type) a, or B, or C, the terminal device may 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 transmit signals, and can then determine which receive beam to use to receive signals based on the beam pairing relationship determined by the channel measurements described above.

The configuration, activation and indication of the TCI state is briefly described below.

TCI state configuration: as an example, the network device may configure the plurality of TCI states to the terminal device through radio resource control (radio resource control, RRC) signaling. These TCI states each include a QCL-Info of type typeD. The network device may also configure a TCI-state that does not include QCL-info of type typeD, without limitation.

TCI state activation: after the network device configures the plurality of TCI states, 8 of the TCI states may be activated by a medium access control element (MAC-CE). These 8 TCI states are in one-to-one correspondence with 8 values of the TCI field in the downlink control information (downlink control information, DCI). That is, which 8 TCI states correspond to the 8 values of the TCI field of the DCI may be determined by MAC-CE.

TCI status 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 transmitted by the network device to the terminal device is 000, which indicates the TCI state corresponding to 000 adopted by the data transmission beam. The reference signal included in the QCL-Info of type typeD in the TCI state is a channel state information-reference signal (CSI-RS) of index #1, which indicates that the beam used for data transmission is the same as the reception beam corresponding to the CSI-RS of index # 1. The reception beam corresponding to CSI-RS with index #1 may be determined through a beam measurement procedure, which is known to the terminal device. Therefore, by the specific value of the TCI field, the terminal device can determine the beam corresponding to the data transmission beam, so as to transmit or receive data by adopting the corresponding beam.

It should be noted that, the two descriptions of the TCI-state and the TCI state may be replaced with each other.

6. Time domain unit and frequency domain unit

The data or information may be carried by time-frequency resources.

In the frequency domain, the time-frequency resource may include one or more frequency domain units. A frequency domain unit may be a Resource Element (RE), or a Resource Block (RB), or a sub-channel (sub-channel), or a resource pool (resource pool), or a bandwidth part (BWP), or a carrier, or a channel, or an interlace (RB), etc.

7. Public beam

Currently each channel employs a separate beam indication. Each channel has its own corresponding beam. In the embodiment of the present application, a common beam is defined, and may be used for multiple channels in uplink and/or downlink simultaneously. It will be appreciated that the common beam designations are designations that are convenient to distinguish, and that other designations may be substituted without limitation.

Common beam: the same beam (or the same set of beams) is commonly employed by at least one of: at least one individual channel, at least one reference signal, at least one seed reference signal. By way of example, channels include, but are not limited to, at least one of: PDCCH, PDSCH, PUCCH, PUSCH physical random access channel (physical random access channel, PRACH). As an example, the reference signals include, but are not limited to, at least one of: synchronization signal block (synchronization signal block, SSB), CSI-RS, DMRS, PTRS, TRS, SRS, etc.

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

Uplink common beam: while for transmission of at least one of the following upstream: at least one channel, transmission of at least one channel, at least one reference signal. For example, beams simultaneously used for PUCCH, PUSCH, and SRS may be referred to as an uplink common beam.

Downlink common beam: while for transmission of at least one of the following downstream: at least one channel, transmission of at least one channel, at least one reference signal. For example, beams simultaneously used for PDCCH, PDSCH and CSI-RS may be referred to as an uplink common beam.

Form of common beam: the common beam may be a newly defined structure (e.g., different from the existing TCI-state). For example, the common beam includes information related to the beam indication including, but not limited to, one or more of the following: common beam Identity (ID), logical cell identity (cell ID), physical cell identity, partial bandwidth identity, reference signal resource for determining a beam, QCL type, uplink power control related parameters (e.g., path loss measurement reference signal resource, p0, closed loop index (closed loop loopcindex), etc.), identity of a path loss reference signal.

Application range of common beam: as an example, the common beam may be cell-level, such as one common beam for transmission of multiple channels within one cell. As another example, the common beam may be BWP-level, such as for transmission of multiple channels within one BWP. As another example, the common beam may also be trans-cell, such as for transmission of multiple channels for multiple cells. The plurality of cells may be, for example, a plurality of cells in one frequency band (band), or a plurality of cells crossing a frequency band, and are not limited.

The terms referred to in the present application are briefly described above, and will not be repeated in the following examples. Furthermore, the foregoing descriptions of the terms are provided for the purpose of illustration only, and are not intended to limit the scope of the embodiments of the present application.

It will be appreciated that the term "and/or" is merely one association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It is also understood that the information indicated by the indication information is referred to as information to be indicated. In a specific implementation process, there are various ways to indicate the information to be indicated, for example, but not limited to, the information to be indicated may be directly indicated, such as the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indicated indirectly by indicating other information, wherein the other information and the information to be indicated have an association relation. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of the specific information may also be achieved by means of a pre-agreed (e.g., protocol-specified) arrangement sequence of the respective information, thereby reducing the indication overhead to some extent.

The method provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings. The embodiments provided in the present application may be applicable to any communication scenario of a transmitting end device and a receiving end device, for example, may be applied to the communication system shown in fig. 1. In the following method embodiments, a transmitting device is mainly taken as a terminal device (or called a terminal device), and a receiving device is taken as a network device (or called a network device) for example.

Referring to fig. 2, fig. 2 is a schematic diagram illustrating a single carrier communication method 200 according to an embodiment of the present application.

At 210, the coded bit stream is modulated to obtain at least two partial modulation symbols, the at least two partial modulation symbols including a first partial modulation symbol and a second partial modulation symbol.

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

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 described by taking a first possible implementation manner as an example.

Taking the transmitting device as the terminal device, in step 210, the terminal device modulates the coded bit stream to obtain a modulation symbol.

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

It will be appreciated that embodiments of the present application are not limited to the particular manner in which the coded bit stream is modulated.

It is further understood that in step 210, the number of symbols in the modulation symbols obtained by modulating the coded bit stream is a plurality.

Optionally, the method 200 further comprises: the modulation symbols are divided into at least two portions of modulation symbols, the at least two portions of modulation symbols including a first portion of modulation symbols and a second portion of modulation symbols.

Taking the transmitting device as a terminal device, the terminal device divides the modulation symbol into at least two parts of modulation symbols.

The following list examples. Assuming that the number of symbols of the modulation symbols is N, where N is an integer greater than 1, the terminal device may divide the N modulation symbols into at least two part modulation symbols. For example, the terminal device may divide the N modulation symbols into two modulation symbols; for another example, the terminal device may divide the N modulation symbols into three modulation symbols; as another example, the terminal device may divide the N modulation symbols into four modulation symbols, and so on, without limitation. The number of the symbols in each part of the modulation symbols may be the same or different, and is not limited. Furthermore, each portion of modulation symbols may correspond to a stream signal.

For ease of understanding, the following description will be given mainly by way of example of dividing the modulation symbols into two parts (i.e., a first part modulation symbol and a second part modulation symbol).

Alternatively, the modulation symbols are equally divided into at least two parts of modulation symbols, i.e. the modulation symbols are equally divided into at least two parts of modulation symbols. In the following, two possible implementations of the average division are described taking as an example the average division of the modulation symbols into a first part of modulation symbols and a second part of modulation symbols.

One possible implementation is halving.

Based on the implementation, the first half of the modulation symbols are first part of modulation symbols, and the second half of the modulation symbols are second part of modulation symbols; or the second half part of modulation symbols in the modulation symbols are first part of modulation symbols, and the first half part of modulation symbols in the modulation symbols are second part of modulation symbols.

The following list examples. Let the number of modulation symbols be N, N being an even number, and the N modulation symbols be: q1, Q2, … …, QN, after halving, the number of the first part modulation symbol and the second part modulation symbol is N/2, and the first part modulation symbol is: q1, Q2, … … QN/2, the second partial modulation symbols are: q (N/2+1), Q (N/2+2), … … QN/2.

Another possible implementation is a comb bisection.

Comb-like halves means one after the other. Based on the implementation, the odd numbered symbols in the modulation symbols are the first partial modulation symbols, and the even numbered symbols in the modulation symbols are the second partial modulation symbols; alternatively, even numbered symbols in the modulation symbols are first partial modulation symbols, and odd numbered symbols in the modulation symbols are second partial modulation symbols.

The following list examples. Let the number of modulation symbols be N, N being an even number, and the N modulation symbols be: after Q1, Q2, … … and QN are comb-divided equally, the numbers of the first part modulation symbols and the second part modulation symbols are N/2, and the first part modulation symbols are as follows: q1, Q3, … … Q (N-1), the second partial modulation symbols are: q2, Q4, … … QN.

It will be appreciated that the two above-described divisions are illustrative and are not limiting. The same manner as to the number of symbols of the first partial modulation symbols and the second partial modulation symbols can be made applicable to the embodiments of the present application.

220, 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.

Taking the transmitting device as the terminal device, in step 220, the terminal device performs single carrier processing on the first portion of modulation symbols and the second portion of modulation symbols, respectively.

Wherein the single carrier processing may also be referred to as single carrier modulation. The single carrier may be, for example: discrete fourier transform spread orthogonal frequency division multiplexing (discrete fourier transformation-spread-orthogonal frequency division multiplexing, DFT-s-OFDM), or may be: single carrier quadrature amplitude modulation (SC-QAM) quadrature amplitude modulation.

Alternatively, the single carrier processing includes a discrete fourier transform (discrete fourier transformation, DFT) operation. That is, performing single carrier processing on the first portion of modulation symbols and the second portion of modulation symbols, respectively, may include: DFT processing is performed on the first and second partial modulation symbols, respectively.

It will be appreciated that the processing to obtain the first partial signal and the second partial signal may include other processing or operations in addition to single carrier processing, and is not limited thereto.

Referring to fig. 3, fig. 3 is a schematic diagram of signal processing suitable for use in embodiments of the present application, as an example.

As an example, the terminal device performs modulation mapping (modulation mapping) on the coded bit stream to obtain modulation symbols. The modulation symbols may also be referred to as complex-valued symbols (complex-valued symbols). The modulation symbols are mapped to a plurality of layers (layers), or transport layers, through layer mapping (layer mapping). The modulation symbol after layer mapping can be subjected to DFT operation; mapping the frequency domain elements after the DFT operation to subcarriers; after subcarrier mapping, the frequency domain signal is subjected to inverse fast fourier transform (inverse fast fourier transform, IFFT) transformation; a Cyclic Prefix (CP) is added to the IFFT-processed signal to obtain a transmission symbol (e.g., a first portion of the signal, and a second portion of the signal), and the transmission symbol is finally transmitted through an antenna port. Wherein the DFT may also be referred to as frequency domain precoding.

As shown in fig. 3, after modulation mapping, the modulation symbols are: q1, Q2, … …, QN, assuming halving, 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; mapping the frequency domain elements after the DFT operation to subcarriers (not shown in fig. 3); after subcarrier mapping, performing IFFT transformation on the frequency domain signals; and adding a CP to the signals subjected to IFFT to finally obtain a first part of signals, and transmitting the first part of signals through a first beam. The signals of layer 2 are similar and will not be described in detail here.

230 transmitting the first portion of the signal on the first frequency domain resource using the first beam and transmitting the second portion of the signal on the second frequency domain resource using the second beam.

Taking the transmitting device as the terminal device, in step 230, the terminal device uses a first beam to transmit a first portion of signals on a first frequency domain resource and uses a second beam to transmit a second portion of signals on a second frequency domain resource. Wherein the first partial signal and the second partial 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 for example, correspondingly, the network device receives the first part of signals on the first frequency domain resource and receives the second part of signals on the second frequency domain resource. For example, the network device may receive the first partial signal and the second partial signal using different beams; as another example, the network device may also receive the first partial signal and the second partial signal using the same beam, which is not limited. For example, the first partial signal and the second partial signal are received by two TRPs, respectively, e.g., the first TRP receives the first partial signal and the second TRP receives the second partial signal.

Wherein the first frequency domain resource and the second frequency domain resource may be non-overlapping. In this way, a two-part signal or two-stream signal can be transmitted in a frequency division multiplexing manner. Furthermore, the first beam and the second beam may be different. In this way, two-part signals or two-stream signals can be transmitted in a frequency-space division multiplexing manner.

It is understood 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, the two-part signal or the two-stream signal may be transmitted in a space division multiplexing manner, and it is not limited whether the two-part signal or the two-stream signal is transmitted in a frequency division multiplexing manner.

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

The first beam and the second beam may also be the same beam, for example.

According to the embodiment of the application, in a single carrier transmission scene, transmission can be performed through at least two streams of signals. Specifically, the modulation symbol may be divided into at least two parts of modulation symbols, and each part of modulation symbol is processed by a single carrier to obtain at least two parts of signals or at least two stream signals, so that each part of signals or each stream signal may be sent by using different beams, thereby implementing space division multiplexing of multiple stream signals. In addition, the at least two partial signals or at least two stream signals can also be transmitted by using different frequency domain resources, so that the multi-stream signal frequency division-space division multiplexing can also be realized. In addition, since each part of modulation symbols is processed by single carrier, even if the transmission quality on part of frequency domain resources is bad, the demodulation effect on the signals on the other part of frequency domain resources is not great, and the overall transmission performance can be improved.

The scheme of the embodiment of the application is described below mainly by taking a transmitting end device as a terminal device and a receiving end device as a network device.

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

One possible implementation is that 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 second ratio between the number of symbols in the first partial modulation symbol and the number of symbols in the second partial modulation symbol. Based on the method, resources for transmitting the partial signals (such as the first partial signal and the second partial signal) can be reasonably allocated, and the utilization rate of the resources is improved.

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 equally divided into two parts for transmitting the two-part signals, respectively.

Assume that the total number of frequency domain units allocated to the terminal device is N _PRB ，N _PRB The number of frequency domain units in the first frequency domain resource and the second frequency domain resource is the same, which indicates that the number of frequency domain units in the first frequency domain resource and the second frequency domain resource is (N _PRB /2)。

One possible implementation, the first part of the frequency domain resources is the first (N _PRB 2) frequency domain units, the second part of the frequency domain resources being the remaining (N) _PRB 2) frequency domain units.

For example, the default first portion of frequency domain resources is the front (N _PRB 2) frequency domain units, the second part of the frequency domain resources being the remaining (N) _PRB 2) frequency domain units. That is, the first partial signal may be predefined, as predefined by a standard, to be mapped to the front (N _PRB /2) the second partial signal is mapped to the remaining (N) _PRB 2) frequency domain units.

As another example, based on an indication of the network device, the first portion of the frequency domain resources are the first (N _PRB 2) frequency domain units, the second part of the frequency domain resources being the remaining (N) _PRB 2) frequency domain units. That is, the network device may transmit indication information to the terminal device, the indication information indicating that the first partial signal is mapped to the front (N _PRB /2) the second partial 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 allocated resources, and if the allocated resources further include a 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. The allocated resources may be resources allocated to the terminal device for transmitting signals. Based on this, if the frequency domain resource allocated to the terminal device is to be divided into two parts, which are used to transmit the first part of signal and the second part of signal, respectively, if the number of frequency domain units in the allocated resource is odd, for an extra frequency domain unit, no signal may be transmitted, or a preset signal may be transmitted.

Assume that the total number of frequency domain units allocated to the terminal device is N _PRB ，N _PRB For an odd number, if the number of frequency domain units in the first frequency domain resource is the same as the number of frequency domain units in the second frequency domain resource, one possible implementation is that the number of frequency domain units in the first frequency domain resource isThe number of frequency domain units in the second frequency domain resource is +.>Wherein (1)>Representing a rounding down. For N _PRB The remaining frequency domain units (i.e., the third frequency domain resource) among the frequency domain units may be processed in any of the following ways. Alternatively, the third frequency domain resource may be N _PRB The last frequency domain unit in the frequency domain units can also be N _PRB The first of the frequency domain units, or N _PRB Any one of the frequency domain units is not limited thereto.

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 referred to as a virtual symbol (e.g., may be "0"), for example, primarily for mapping on the third frequency domain resource, and does not participate in subsequent demodulation. For example, taking frequency domain units as RBs as an example, based on this mode 1, a preset symbol that can be filled with 1RB in the first part of modulation symbols is mapped to the frontAnd transmitting on each RB.

Referring to fig. 4, fig. 4 is a schematic diagram applicable to mode 1 as an example. As shown in fig. 4, it is assumed that the frequency domain units in the first frequency domain resource allocated to the first partial signal are 3 frequency domain units, and the frequency domain units in the second frequency domain resource allocated to the second partial signal are 2 frequency domain units. The first partial modulation symbols and the padded preset symbols may be mapped on 3 frequency-domain units in the first frequency-domain resource, and the second partial modulation symbols may be mapped on 2 frequency-domain units in the second frequency-domain resource. In this example, the third frequency domain resource may be considered as one frequency domain unit in the first frequency domain resource to which the preset symbol is mapped.

Accordingly, considering that each RB includes 12 REs, one RE is a subcarrier of one OFDM, the network device takes in frequency domain processing of the signal received using the first beam (i.e., the first partial signal)The subcarriers, and the number of inverse discrete fourier transform (inverse discrete fourier transformation, IDFT) points are determined. After the network device performs frequency domain equalization on the first part of signals, the number of IDFT points is determined according to the total symbol length (namely, the preset symbol is included). After determining the number of IDFT points, after transforming to the time domain, discarding redundant symbols (i.e. discarding preset symbols), and then combining the symbol streams of the two beams to perform joint demodulation decoding.

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

For example, assume that the frequency domain unit allocated to the first partial signal isThe frequency domain unit allocated to the second partial signal is +.>Frequency domain units. Then the first partial modulation symbol can be mapped to a front +.>On the frequency domain units, the remaining frequency domain units are not mapped with signals; the second partial modulation symbols are mapped to +. >And on the frequency domain units.

Referring to fig. 5, fig. 5 is a schematic diagram applicable to mode 2 as an example. As shown in fig. 5, it is assumed that the frequency domain units in the first frequency domain resource allocated to the first partial signal are 3 frequency domain units, and the frequency domain units in the second frequency domain resource allocated to the second partial signal are 2 frequency domain units. The first partial modulation symbols may be mapped on the first 2 frequency domain units in the first frequency domain resource and the signal is not mapped on the third frequency domain unit (an example of the third frequency domain resource) in the first frequency domain resource; the second partial modulation symbols may be mapped on 2 frequency domain units in the second frequency domain resource.

Accordingly, the network device takes the signal received in the first beam (i.e., the first partial signal) when performing frequency domain processingSubcarriers, and the number of IDFT points is determined according to the number. After the network device performs frequency domain equalization on the first part of signals, the number of IDFT points is determined according to the actual symbol length. Starting from the first RB with the frequency domain unit as RB +.>The RBs are IDFT, th->The RBs may be discarded or ignored. After the conversion to the time domain, the symbol streams of the two beams are combined for joint demodulation and decoding.

Optionally, the method 200 further comprises: first indication information is received, the first indication information comprising a first transmission precoding matrix indicator (transmission precoding matrix indicator, TPMI) and/or a second TPMI.

Wherein TPMI is a code for selecting one from a plurality of pre-defined pre-coding matrices of a protocol. In general, one precoding matrix is used for multiple streams, and one precoding matrix is used for all frequency domain resources allocated to a terminal device, unlike this, in the embodiment of the present application, two TPMI may be provided for a first frequency domain resource and a second frequency domain resource, that is, for a first portion of signals transmitted on the first frequency domain resource and a second portion of signals transmitted on the second frequency domain resource, respectively, that is, two TPMI may be used for two single stream transmissions. For example, the terminal device transmits two-part single-layer signals (e.g., two single-layer PUSCHs), which are respectively precoded and mapped and transmitted through one beam or one antenna panel, respectively, that is, one layer of transmission is performed on each beam or each antenna panel, so that coverage gain can be ensured. As shown in fig. 3, the network device schedules two layers, and the signals of each layer are precoded separately and mapped and transmitted through one beam or one antenna panel.

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

Wherein, the first TPMI is used for precoding the first part of signals, and the second TPMI is used for precoding the second part of signals. Based on this, the network device may instruct the two single-stream TPMI to separately precode the two partial signals, respectively.

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

Wherein, the first TPMI is configured to precode the first portion of the signal. The first TPMI has an association relationship with the second TPMI, and therefore, the terminal device may determine the second TPMI based on the first TPMI and the association relationship, where the second TPMI is used to precode the second portion 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 the network device and notified to the terminal device, which is not limited.

In a third possible implementation manner, the first indication information includes a second TPMI. This implementation may refer to the second possible implementation described above, and will not be described here again.

It is to be understood that the foregoing is illustrative and not restrictive. For example, the first indication information includes a third TPMI that may be used to precode the first partial signal and the second partial signal. In this case, as an example, the terminal device may precode a part of the signals using a part (e.g., a column, or a row, or a part of a column, or a part of a row, or a part of a column, etc.) of the third TPMI matrix.

As an example, the matrix of the third TPMI exhibits characteristics of block diagonals. Wherein, the block diagonal represents:wherein a/b/c/d is any complex number or real number, and the values can be the same. It will be appreciated that the above matrix is for the purpose of describing block diagonals, and embodiments of the present application are not limited in this regard to the particular form of matrix that satisfies the block diagonals.

One possible implementation way, a correspondence is predefined (e.g., predefined by a standard), where the correspondence is between a TPMI matrix and an index, and the TPMI matrix satisfies a block diagonal feature. As an example, the correspondence may exist in the form of a table.

Another possible implementation manner is that the network device selects a TPMI matrix that satisfies the block diagonal feature, and indicates an index corresponding to the TPMI to the terminal device. For example, the predefined (e.g., standard predefined) network device may be configured to determine the index corresponding to the TPMI matrix satisfying the block diagonal feature from the existing TPMI table, and indicate the index to the terminal device. It is also understood that the above-described scheme with respect to TPMI may be used alone.

The above is mainly exemplified by codebook transmission. It may be appreciated that for non-codebook (NCB) transmission, as an example, the network device may indicate two SRS resource indications (SRS resource indicator, SRI) in the uplink scheduling DCI signaling for determining the number of layers and precoding for single carrier transmission by two beams (or two panels), respectively.

Optionally, the method 200 further comprises: the terminal equipment sends a first DMRS and a second DMRS, wherein the first DMRS is used for assisting in demodulating the first part of signals, the second DMRS is used for assisting in demodulating the second part of signals, 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 may facilitate demodulation of the first portion of the signal based on the first DMRS and the second portion of the signal based on the second DMRS.

The first DMRS is configured to assist in demodulating the first portion of the signal, which indicates that the first DMRS is configured to assist the network device in demodulating the first portion of the signal. The second DMRS is configured to assist in demodulating the second partial signal, meaning that the second DMRS is configured to assist the network device in demodulating the second partial signal.

Wherein the first DMRS corresponds to a first frequency domain resource, and indicates that the first DMRS is used for a signal (i.e., a first portion of signals) on the first frequency domain resource. The second DMRS corresponds to a second frequency domain resource, and represents that the second DMRS is used for a signal (i.e., a second partial signal) on the second frequency domain resource.

One possible implementation, the antenna ports of the first DMRS and the second DMRS are the same.

Referring to fig. 6, fig. 6 is a schematic diagram of a DMRS suitable for use in embodiments of the present application, as an example. As shown in fig. 6, two frequency domain resources are used to transmit a first part of signal and a second part of signal, respectively, and the two frequency domain resources may use DMRS of the same antenna port (as same comb location but sub-band frequency division) to transmit signals of different beams (or different antenna panels), that is, the first part of signal and the second part of signal, respectively.

It will be appreciated that the foregoing is illustrative, and not limiting, and that, for example, the antenna ports of the first DMRS and the second DMRS may 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 (code division multiplexing, CDM) port group (CDM group).

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

In a first possible implementation, the network device configures or indicates at least two fields (e.g., referred to as precoding information and layer number (Precoding information and number of layers) fields) by signaling, and in the case of turning on a single carrier, each Precoding information and number of layers field may indicate one layer (i.e., layer number 1). Based on this implementation, each Precoding information and number of layers field indicates a layer, then the number of Precoding information and number of layers fields is, as an example, the number of streams.

For example, taking two Precoding information and number of layers fields as an example, in the case of turning on a single carrier, two Precoding information and number of layers fields are used for two beams (or two antenna panels), respectively. Further, by at least one bit in each Precoding information and number of layers field, a precoding matrix under a corresponding transmission layer can be indicated. For example, the index corresponding to the precoding matrix is indicated by at least one bit in each Precoding information and number of layers field, and the terminal device can determine the precoding matrix based on the correspondence between the precoding matrix and the index. Wherein the correspondence between the precoding matrix and the index may be predefined, as predefined by a standard. As an example, the correspondence between the precoding matrix and the index may exist in the form of a table.

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

For example, taking Precoding information and number of layers field to indicate two layers as an example, one layer of data may be mapped onto one beam (or one antenna panel) or one scheduling resource by default or indicated by the network device. Further, the precoding matrix may 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 may determine the precoding matrix based on a correspondence between the precoding matrix and the index, and the terminal device may precode a portion (e.g., a layer) of a signal to be transmitted using a portion (e.g., a portion of a column, a row, or a rank) of the precoding matrix. Wherein the correspondence between the precoding matrix and the index may be predefined, as predefined by a standard. As an example, the correspondence between the precoding matrix and the index may exist in the form of a table.

Optionally, the method 200 further comprises: the terminal equipment receives second indication information, wherein the second indication information indicates: each of the at least two partial signals is transmitted on a different frequency domain resource and/or transmitted using a different beam. Accordingly, the network device transmits the second indication information.

Example 1, the second indication information indicates that each of the at least two partial signals is transmitted on a different frequency domain resource.

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

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

Example 2, the second indication information indicates that each of the at least two partial signals is transmitted using a different beam.

In this example, after receiving the second indication information, the terminal device learns to transmit each part of signals in at least two parts of signals by using different beams according to the second indication information, so that the terminal device determines to start a single carrier frequency division-space division multiplexing mode, modulates the coded bit stream to obtain a modulation symbol, divides the modulation symbol into at least two parts of modulation symbols, and performs single carrier processing on each part of modulation symbol, thereby transmitting each part of signals in at least two parts of signals on different frequency domain resources by using different beams.

In this example, if the network device indicates to transmit each of the at least two partial signals using a different beam, the terminal device may default to transmit each of the at least two partial signals using a different beam on a different frequency domain resource.

Example 3, the second indication information indicates that each of the at least two partial signals is transmitted on a different frequency domain resource and each of the at least two partial signals is transmitted using a different beam.

In this example, after receiving the second indication information, the terminal device learns to send each part of signals in at least two parts of signals on different frequency domain resources according to the second indication information, and sends each part of signals in at least two parts of signals by adopting different beams, so that the terminal device determines to start a single carrier frequency division-space division multiplexing mode, modulates the coded bit stream to obtain a modulation symbol, divides the modulation symbol into at least two parts of modulation symbols, and respectively carries out single carrier processing on each part of modulation symbol, thereby respectively adopting different beams to send each part of signals in at least two parts of signals on different frequency domain resources.

Optionally, the method 200 further comprises: the terminal equipment receives third indication information, wherein the third indication information indicates transmission resources, and the transmission resources comprise first frequency domain resources and second frequency domain resources. Accordingly, the network device transmits the third indication information.

In a first possible implementation, the third indication information includes information of transmission resources. The terminal device may learn the first frequency domain resource and the second frequency domain resource based on the third indication information, that is, the information of the transmission resource.

For example, assume that the number of transmission resource frequency domain units is N _PRB ，N _PRB For even numbers, the terminal device defaults (e.g., predefines) the first portion of frequency domain resources to the previous (N) _PRB 2) frequency domain units, the second part of the frequency domain resources being the remaining (N) _PRB 2) frequency domain units.

In a second possible implementation manner, the third indication information includes information of the first frequency domain resource. The terminal device can acquire the first frequency domain resource and the second frequency domain resource based on the third indication information, namely the information of the first frequency domain resource.

For example, assuming that the number of frequency-domain units in the first frequency-domain resource is N1, the second frequency-domain resource may be defaulted (e.g., predefined) to be N1 frequency-domain units after the last frequency-domain unit in the first frequency-domain resource.

In a third possible implementation manner, the third indication information includes information of the second frequency domain resource. The terminal device can acquire the first frequency domain resource and the second frequency domain resource based on the third indication information, namely the information of the second frequency domain resource. Reference is made specifically to the second possible implementation manner, and details are not repeated here.

Optionally, the transmission resource is a Configured Grant (CG) resource.

As an example, CG resources include two types (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 the 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 including a configuration grant configuration (configurable grantconfigu) indicating transmission resources configured by the network device for the terminal device. In one possible implementation, the RRC message may also indicate whether to turn on a single carrier, i.e. whether single carrier modulation is used.

For example, the RRC message includes an indication information indicating whether to turn on a single carrier. Assume that indicated by 1 bit: whether to turn on a single carrier. If the bit is set to "1", it indicates that a single carrier is turned on; if the bit is set to "0", it means that the single carrier is not turned on. It is to be understood that the above is intended to be illustrative, and not restrictive. Furthermore, turning on a single carrier may also be embodied as enabling transmission precoding (transform precoding enable).

Alternatively, in the case of turning on a single carrier, a frequency division multiplexing mode is used. For example, the frequency division multiplexing mode may be used by default in the case of turning on a single carrier, or may also be determined by an instruction of the network device.

Alternatively, in case of turning on a single carrier, the terminal device transmits the 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, the terminal device may transmit the W-stream signal by default in the case of turning on a single carrier, or may determine to transmit the W-stream signal by an instruction of the network device.

In one possible implementation manner, the network device indicates the layer number, and the terminal device can learn the value of W based on the layer number. For example, the network device may configure a precoding and dnumberoflayers2 that indicates a layer number of 2, i.e., transmitted in two streams of signals, and precoded independently per stream of signals.

Optionally, if configurable grantconfig is configured with frequency hopping, then frequency-space division joint frequency hopping may also be supported. For example, the terminal device may determine the location and number of frequency domain resources according to the frequency hopping and RB bandwidth each time the terminal device transmits a signal. For another example, if the terminal device transmits signals in two streams each time, the terminal device may transmit a first portion of signals using a first beam on a first half RB of the resources used for transmitting signals by the terminal device and transmit a second portion of signals using a second beam on a second half RB of the resources used for transmitting signals by the terminal device.

Optionally, for CG resources of type 2, the network device may dynamically adjust at least one of the following for different periodic frequency hopping transmissions using DCI activation or repeated activation: beam, frequency domain resources.

In the above embodiments, single carrier transmission is mentioned multiple times. Taking the transmitting device as a terminal device for example, the terminal device may optionally determine to enable or disable single carrier transmission based on certain parameters. The single carrier transmission is enabled, which can be understood as transmission by adopting the single carrier communication method provided by the embodiment of the application. Disabling single carrier may be understood as not employing the single carrier communication method provided in the embodiments of the present application for transmission.

In one possible implementation, the terminal device considers enabling or disabling single carrier transmission according to a first msg3-transformPrecoder configuration and a second msg3-transformPrecoder configuration, respectively. It will be appreciated that the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration are naming schemes for distinction, and specific naming schemes thereof do not limit the scope of the embodiments of the present application.

For example, the network device may send two higher layer parameters to the terminal, denoted as a first msg3-transformPrecoder configuration and a second msg3-transformPrecoder configuration, respectively, and 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.

In another possible implementation, the terminal device may consider enabling or disabling single carrier transmission according to some type of parameter (e.g., denoted as transformPrecoder). It should be understood that the transformpredecoder is only one possible naming, and the specific naming method does not limit the scope of the embodiments of the present application.

For example, the network device may transmit at least one higher layer parameter transformPrecoder to the terminal, which may enable or disable single carrier transmission according to the at least one transformPrecoder consideration.

Several possible examples are listed below.

Example 1, for any of the following: in any of the above PUSCH transmissions, the terminal device may consider enabling or disabling single carrier transmission according to a first msg 3-transformpre-coder configuration and a second msg 3-transformpre-coder configuration, respectively, for a corresponding beam or antenna panel, in response to a random access response (random access response, RAR) Uplink (UL) grant scheduled PUSCH, a fallback (fallback) RAR UL grant scheduled PUSCH, or a DCI scheduled PUSCH in format 0_0. Wherein the cyclic redundancy check (cyclic redundancy check, CRC) of PUSCH may be scrambled by a temporary cell radio network temporary identity (TC-RNTI).

Example 2, for a PDCCH scheduled PUSCH transmission, if a terminal device receives DCI with a scheduling grant in a format of 0_0, the terminal device may consider enabling or disabling single carrier transmission for a corresponding beam or antenna panel in this PUSCH transmission according to two parameters of a higher layer configuration, a first msg 3-transformpre-coder configuration and a second msg 3-transformpre-coder configuration.

Example 3, if the terminal device receives DCI with a scheduling grant, the format of which is not 0_0, and includes two higher layer parameters transformpre-coders in PUSCH configuration (PUSCH-Config), the terminal device may consider enabling or disabling single carriers on two beams or panels according to the corresponding parameters in this PUSCH transmission.

Example 4, if the terminal device receives DCI with a scheduling grant, the DCI format is not 0_0 and the higher layer parameter, transformPrecoder, is not configured in the pusch-Config, the terminal device may consider enabling or disabling single carrier transmission for a corresponding beam or antenna panel according to the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration of the higher layer configured parameters, or the terminal device may consider enabling or disabling single carrier transmission according to the higher layer configured parameter msg 3-transformPrecoder.

Example 5 for PUSCH transmission with transmission resources being configuration grant, if the terminal device includes one higher layer parameter transformPrecoder in the configured GrantConfig, the terminal device may consider enabling or disabling single carriers on both beams or panels in this PUSCH transmission according to the parameter.

Example 6, for PUSCH transmission with transmission resources being configuration grant, if the terminal device includes two higher layer parameters transformPrecoder in the configured GrantConfig, the terminal device may consider enabling or disabling single carriers on two beams or panels according to the respective parameters in this PUSCH transmission.

Example 7, for PUSCH transmission with transmission resources being configuration grant, if the terminal device does not configure a higher layer parameter transformPrecoder in the configured GrantConfig, the terminal device may consider enabling or disabling single carrier transmission for a corresponding beam or antenna panel according to the first msg3-transformPrecoder configuration and the second msg3-transformPrecoder configuration of the parameters of the higher layer configuration, or the terminal device may consider enabling or disabling single carrier transmission according to the parameter msg3-transformPrecoder of the higher layer configuration.

The above examples are illustrative and not limiting.

It will be appreciated that in some embodiments described above, reference is made to "transmitting," which includes receiving and/or transmitting, unless specifically indicated otherwise. For example, transmitting the signal may include receiving the signal and/or transmitting the signal.

It is also understood that in some of the embodiments described above, reference is made to indication information, which may be DCI information. The DCI information may be one piece of DCI information including transmission parameters indicating two beams or antenna panels, or two pieces of DCI information indicating transmission parameters of two beams or antenna panels, respectively. The DCI information may be transmitted by one network device or TRP, or may be transmitted by two network devices or TRP, which is not limited.

It will also be appreciated that in some of the embodiments described above, the partial signals may or may not overlap in the frequency domain.

It will also be appreciated that in some of the embodiments described above, the partial signals may be replaced by stream signals. For example, the first partial signal may also be referred to as a first stream signal, and the second partial signal may also be referred to as a second stream signal. For another example, the at least two-part signal may also be referred to as at least two-stream signal.

It will be further appreciated that in the embodiments of the present application, the interaction between the terminal device and the network device is mainly exemplified, and the present application is not limited thereto. The terminal equipment can be replaced by a transmitting end device, and the transmitting end device can be terminal equipment or network equipment; the network device may be replaced by a receiving end device, which may be a terminal device or a network device.

It will also be appreciated that in the embodiments of the present application, the beam is mainly illustrated as an example, and the beam may be replaced by an antenna panel.

It will also be appreciated that some optional features of the various embodiments of the application may, in some circumstances, be independent of other features, or may, in some circumstances, be combined with other features, without limitation.

It is also to be understood that the aspects of the embodiments of the present application may be used in any reasonable combination, and that the explanation or illustration of the terms presented in the embodiments may be referred to or explained in the various embodiments without limitation.

It is further understood that in the foregoing embodiments of the methods and operations implemented by the communication device, the methods and operations may also be implemented by component parts (e.g., chips or circuits) of the communication device.

Corresponding to the methods given by the above method embodiments, the embodiments of the present application also provide corresponding apparatuses, where the apparatuses include corresponding modules for performing the above method embodiments. The module may be software, hardware, or a combination of software and hardware. It will be appreciated that the technical features described in the method embodiments described above are equally applicable to the device embodiments described below.

Referring to fig. 7, fig. 7 is a schematic block diagram of a communication device 700 according to an embodiment of the present application, as an example. The apparatus 700 comprises a transceiver unit 710 and a processing unit 720. The transceiving unit 710 may be used to implement corresponding communication functions. The transceiver unit 710 may also be referred to as a communication interface or a communication unit. Processing unit 720 may be configured to perform data processing, such as single carrier processing, on modulation symbols.

Optionally, the apparatus 700 further includes a storage unit, where the storage unit may be configured to store instructions and/or data, and the processing unit 720 may read the instructions and/or data in the storage unit, so that the apparatus performs the actions of the communication apparatus (e.g., the sending apparatus and, as another example, the receiving apparatus) in the foregoing method embodiments.

Alternatively, the transceiver unit 710 may include a receiving unit and/or a transmitting unit. The receiving unit may be configured to perform the receiving related operations in the above method embodiment, and the transmitting unit may be configured to perform the transmitting related operations in the above method embodiment. The receiving unit and the transmitting unit may be integrated together or may be separately provided.

In one design, the apparatus 700 may be a transmitting end apparatus (e.g., a terminal device, and also a network device) in the foregoing embodiment, or may be a component (e.g., a chip) of the transmitting end apparatus. The apparatus 700 may implement steps or processes performed by the transmitting end apparatus in the above method embodiment, where the transceiving unit 710 may be configured to perform transceiving related operations of the transmitting end apparatus in the above method embodiment, and the processing unit 720 may be configured to perform processing related operations of the transmitting end apparatus in the above method embodiment.

A possible implementation manner, the processing unit 720 is configured to modulate the coded bit stream to obtain a modulation symbol; the processing unit 720 is further configured to divide 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 symbol and a second part of modulation symbol; the processing unit 720 is further configured to perform single carrier processing on the first portion of modulation symbols and the second portion of modulation symbols, to obtain a first portion of signals and a second portion of signals; the transceiver 710 is configured to transmit the first partial signal on the first frequency domain resource using the first beam, and transmit the second partial signal on the second frequency domain resource using the second beam.

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

Optionally, the first ratio and the second ratio are the same, wherein the first ratio is a 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 a ratio between the number of symbols in the first part of modulation symbols and the number of symbols in the second part of 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 equally divide the modulation symbol into at least two parts of modulation symbols.

Optionally, the processing unit 720 is further configured to divide the modulation symbol into at least two parts, including: the processing unit 720 is further configured to equally divide the modulation symbols into a first portion of modulation symbols and a second portion of modulation symbols, where a first half of the modulation symbols are first portion of modulation symbols, and a second half of the modulation symbols are second portion of modulation symbols; alternatively, the odd numbered symbols in the modulation symbols are the first partial modulation symbols and the even numbered symbols in the modulation symbols are the second partial 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 resource and the second frequency domain resource belong to allocated resources, and if the allocated resources further include a 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.

Optionally, the transceiver unit 710 is further configured to receive first indication information, where the first indication information meets any one of the following: the first indication information comprises a first Transmission Precoding Matrix Indication (TPMI) and a second TPMI, wherein the first TPMI is used for precoding a first part of signals, and the second TPMI is used for precoding a second part of signals; or the first indication information comprises a first TPMI or a second TPMI, the first TPMI and the second TPMI have an association relation, the first TPMI is used for precoding the first part of signals, and the second TPMI is used for precoding the second part of signals; or, the first indication information includes a third TPMI for precoding the first partial signal and the second partial signal.

Optionally, the transceiver 710 is further configured to send a first demodulation reference signal DMRS and a second DMRS, where the first DMRS is configured to assist in demodulating the first portion of signal, the second DMRS is configured to assist in demodulating the second portion of signal, 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.

Optionally, the transceiver unit 710 is further configured to receive second indication information, where the second indication information indicates: each of the at least two partial signals is transmitted on a different frequency domain resource and/or transmitted using a different beam.

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 frequency domain resource and a second frequency domain resource.

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

The apparatus 700 may implement steps or processes corresponding to those performed by the sender apparatus in the method embodiment according to the embodiment of the present application, and the apparatus 700 may include units for performing the methods performed by the sender apparatus in the embodiments shown in fig. 2 to 6.

In another design, the apparatus 700 may be a receiving end apparatus (such as a terminal device, also referred to as a network device) in the foregoing embodiment, or may be a component (such as a chip) of the receiving end apparatus. The apparatus 700 may implement steps or processes performed by a receiving device in the above method embodiment, where the transceiver unit 710 may be configured to perform operations related to the transceiver of the receiving device in the above method embodiment, and the processing unit 720 may be configured to perform operations related to the processing of the receiving device in the above method embodiment.

A possible implementation manner, the transceiver unit 710 is configured to receive a first part of signals by using a first beam on a first frequency domain resource, and receive a second part of signals by using a second beam on a second frequency domain resource, where the first part of signals and the second part of signals are obtained by performing single carrier processing on a first part of modulation symbols and a second part of modulation symbols respectively; a processing unit 720, configured to jointly demodulate the first portion signal and the second portion signal.

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

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

Optionally, the transceiver unit 710 is further configured to send first indication information, where the first indication information meets any one of the following: the first indication information comprises a first Transmission Precoding Matrix Indication (TPMI) and a second TPMI, wherein the first TPMI is used for precoding a first part of signals, and the second TPMI is used for precoding a second part of signals; or the first indication information comprises a first TPMI or a second TPMI, the first TPMI and the second TPMI have an association relation, the first TPMI is used for precoding the first part of signals, and the second TPMI is used for precoding the second part of signals; or, the first indication information includes a third TPMI for precoding the first partial signal and the second partial signal.

Optionally, the transceiver 710 is further configured to receive a first demodulation reference signal DMRS and a second DMRS, where 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 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.

Optionally, the transceiver unit 710 is further configured to send second indication information, where the second indication information indicates: each of the at least two partial signals is transmitted on a different frequency domain resource and/or transmitted using a different beam.

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

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

The apparatus 700 may implement steps or processes corresponding to those performed by the receiving end apparatus in the method embodiment according to the embodiment of the present application, and the apparatus 700 may include units for performing the methods performed by the receiving end apparatus in the embodiments shown in fig. 2 to 6.

A more detailed description of the apparatus 700 may be directly obtained with reference to the related description in the above method embodiments, and will not be repeated herein.

It should be understood that the specific process of each unit performing the corresponding steps has been described in detail in the above method embodiments, and is not described herein for brevity.

It should also be appreciated that the apparatus 700 herein is embodied in the form of functional units. The term "unit" herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 700 may be specifically a communication apparatus (e.g. a transmitting end apparatus and a receiving end apparatus) in the foregoing embodiments, and may be used to perform each flow and/or step corresponding to the communication apparatus in the foregoing method embodiments, which is not repeated herein.

The apparatus 700 of each of the above embodiments has a function of implementing the corresponding steps performed by the communication apparatus (e.g., the transmitting apparatus, and also e.g., the receiving apparatus) in the above method. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions; for example, the transceiver unit may be replaced by a transceiver (e.g., a transmitting unit in the transceiver unit may be replaced by a transmitter, a receiving unit in the transceiver unit may be replaced by a receiver), and other units, such as a processing unit, etc., may be replaced by a processor, to perform the transceiver operations and related processing operations in the various method embodiments, respectively.

The transceiver unit 710 may be a transceiver circuit (e.g., may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.

It should be noted that the apparatus in fig. 7 may be the device in the foregoing embodiment, or may be a chip or a chip system, for example: system on chip (SoC). The receiving and transmitting unit can be an input and output circuit and a communication interface; the processing unit is an integrated processor or microprocessor or integrated circuit on the chip. And are not limited herein.

Referring to fig. 8, fig. 8 is a schematic block diagram of a communication device 800 provided in an embodiment of the present application, as an example. The apparatus 800 includes a processor 810, the processor 810 being coupled to a memory 820. Optionally, a memory 820 is further included for storing computer programs or instructions and/or data, and the processor 810 is configured to execute the computer programs or instructions stored in the memory 820 or to read the data stored in the memory 820 for performing the methods in the method embodiments above.

Optionally, the processor 810 is one or more.

Optionally, the memory 820 is one or more.

Alternatively, the memory 820 may be integrated with the processor 810 or provided separately.

Optionally, as shown in fig. 8, the apparatus 800 further comprises a transceiver 830, the transceiver 830 being used for receiving and/or transmitting signals. For example, the processor 810 is configured to control the transceiver 830 to receive and/or transmit signals.

Alternatively, when the communication device 800 is a chip, the transceiver 830 may be an input/output interface of the chip, where the input interface implements a receiving operation and the output interface implements a transmitting operation. As an option, the apparatus 800 is configured to implement the operations performed by the communication apparatus in the various method embodiments above.

For example, the processor 810 is configured to execute computer programs or instructions stored in the memory 820 to implement the relevant operations of the transmitting device or the receiving device in the above method embodiments.

In implementation, the steps of the above method may be performed by integrated logic circuitry in hardware or instructions in software in processor 810. The method disclosed in connection with the embodiments of the present application may be embodied directly in hardware processor execution or in a combination of hardware and software modules in a processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. Which is located in a memory 820, and a processor 810 reads information in the memory 820 and performs the steps of the above method in combination with its hardware. To avoid repetition, a detailed description is not provided herein.

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

A processor (e.g., processor 810) may include one or more processors and be implemented as a combination of computing devices. The processor may each include one or more of the following: microprocessors, microcontrollers, digital signal processors (digital signal processor, DSPs), digital signal processing devices (digital signal processing device, DSPD), application specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate arrays (field programmable gate array, FPGA), programmable logic devices (programmable logic device, PLD), gate logic, transistor logic, discrete hardware circuits, processing circuits, or other suitable hardware, firmware and/or combinations of hardware and software for executing the various functions described in this disclosure. The processor may be a general purpose processor or a special purpose 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 processor may be used to cause the device to execute a software program and process data in the software program. In addition, a portion of the processor may also include nonvolatile random access memory. The processor may also store information of the device type, for example.

The procedure in this application is used in a broad sense to represent software. Non-limiting examples of software include: program code, program, subroutine, instructions, instruction set, code segments, software modules, applications, or software applications, or the like. The program may run in a processor and/or a computer. Such that the apparatus performs the various functions and/or processes described herein.

The memory (e.g., memory 820) may store data required by a processor (e.g., processor 810) when executing software. The memory may be implemented using any suitable memory technology. For example, memory may be any available storage media that can be accessed by a processor and/or computer. Non-limiting examples of storage media include: random access memory (random access memory, RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), compact Disc-ROM (CD-ROM), static RAM, dynamic RAM, DRAM, synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM, DRAM), synchronous DRAM (DRAM), removable media, optical disk storage media, magnetic storage devices, flash memory, registers, state memory, remote mount memory, local or remote memory components, or any other medium capable of carrying or storing software, data, or information and being accessed by a processor/computer. It should be noted that the memory described herein is intended to comprise, without being 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 in connection with the processor such that the processor can read information from, store information in, and/or write information to the memory. The memory may be integrated in the processor. The memory and 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, fig. 9 is a schematic block diagram of a chip system 900 provided in an embodiment of the present application, as an example. The system-on-chip 900 (or may also be referred to as a processing system) includes logic 910 and input/output interface 920.

Logic 910 may be a processing circuit in system on a chip 900. Logic 910 may be coupled to a memory unit to invoke instructions in the memory unit so that the system-on-chip 900 can implement the methods and functions of embodiments of the present application. The input/output interface 920 may 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 an option, the chip system 900 is used to implement the operations performed by the communication device in the various method embodiments above.

For example, the logic circuit 910 is configured to implement the operations related to the processing performed by the sender device in the above method embodiment, for example, the operations related to the processing performed by the sender device in the embodiment shown in fig. 2, or the operations related to the processing performed by the sender device in the embodiment shown in fig. 5; the input/output interface 920 is configured to implement the operations related to transmission and/or reception performed by the transmitting end device in the above method embodiment, for example, the operations related to transmission and/or reception performed by the transmitting end device in the embodiment shown in fig. 2, or the operations related to transmission and/or reception performed by the transmitting end device in the embodiment shown in fig. 5.

For another example, the logic circuit 910 is configured to implement the operations related to the processing performed by the receiving end device in the above method embodiment, for example, the operations related to the processing performed by the receiving end device in the embodiment shown in fig. 2, or the operations related to the processing performed by the receiving end device in the embodiment shown in fig. 5; the input/output interface 920 is configured to implement the operations related to transmission and/or reception performed by the receiving end device in the above method embodiment, for example, the operations related to transmission and/or reception performed by the receiving end device in the embodiment shown in fig. 2, or the operations related to transmission and/or reception performed by the receiving end device in the embodiment shown in fig. 5.

The embodiments of the present application also provide a computer readable storage medium having stored thereon computer instructions for implementing the method performed by the communication device (e.g., the transmitting device, and also e.g., the receiving device) in the above method embodiments.

Embodiments of the present application also provide a computer program product containing instructions that, when executed by a computer, implement the method performed by a communication device (e.g., a transmitting device, and a receiving device) in the above method embodiments.

The embodiments of the present application also provide a communication system including the transmitting-end apparatus and the receiving-end apparatus in the above embodiments.

The explanation and beneficial effects of the related content in any of the above-mentioned devices can refer to the corresponding method embodiments provided above, and are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the above-described division of units is merely a logical function division, and there may be another division manner in actual implementation, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Furthermore, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to implement the solution provided in the present application.

In addition, each functional unit in each embodiment of the present application may be integrated in one unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

When implemented in software, may 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 the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. For example, the computer may be a personal computer, a server, or a network device, etc. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. With respect to computer readable storage media, reference may be made to the description above.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of single carrier communication, comprising:

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

carrying out 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 partial signal is transmitted on a first frequency domain resource using a first beam and the second partial signal is transmitted on a second frequency domain resource using a second beam.

2. The method of claim 1, wherein modulating the coded bit stream to obtain at least two portions of modulation symbols comprises:

and modulating the coded bit stream to obtain modulation symbols, wherein the modulation symbols are divided into at least two parts of modulation symbols.

3. The method of claim 2, wherein the modulation symbols are equally divided into the at least two portions of modulation symbols.

4. The method of claim 3, wherein the modulation symbols are equally divided into the first portion of modulation symbols and the second portion of modulation symbols,

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

5. The method according to any one of claims 1 to 4, further comprising:

receiving first indication information, wherein the first indication information meets any one of the following:

the first indication information includes a first transmission precoding matrix indication TPMI and a second TPMI, where the first TPMI is used for precoding the first part of signals, and the second TPMI is used for precoding the second part of signals; or,

The first indication information comprises a first TPMI or a second TPMI, the first TPMI and the second TPMI have an association relationship, the first TPMI is used for precoding the first part of signals, and the second TPMI is used for precoding the second part of signals; or,

the first indication information includes a third TPMI, where the third TPMI is configured to precode the first portion signal and the second portion signal.

6. The method according to any one of claims 1 to 5, further comprising:

and transmitting a first demodulation reference signal (DMRS) and a second DMRS, wherein the first DMRS is used for assisting in demodulating the first partial signal, the second DMRS is used for assisting in demodulating the second partial signal, antenna ports of the first DMRS and the second DMRS are the same, the first DMRS corresponds to the first frequency domain resource, and the second DMRS corresponds to the second frequency domain resource.

7. The method of any of claims 1-6, wherein the first portion of the signal is transmitted on a first frequency domain resource using a first beam and wherein the method further comprises, prior to the second portion of the signal being transmitted on a second frequency domain resource using a second beam:

Receiving second indication information, wherein the second indication information indicates: each of the at least two partial signals is transmitted on a different frequency domain resource and/or transmitted using a different beam.

8. The method according to any one of claims 1 to 7, further comprising:

and receiving third indication information, wherein the third indication information indicates transmission resources, and the transmission resources comprise the first frequency domain resources and the second frequency domain resources.

9. A method of single carrier communication, comprising:

receiving a first partial signal on a first frequency domain resource and receiving a second partial signal on a second frequency domain resource, wherein the first partial signal and the second partial signal are obtained by respectively carrying out single carrier processing on a first partial modulation symbol and a second partial modulation symbol;

and carrying out joint demodulation on the first part signal and the second part signal.

10. The method of claim 9, wherein the number of symbols in the first portion of modulation symbols is the same as the number of symbols in the second portion of modulation symbols.

11. The method of claim 10, wherein the first portion of modulation symbols and the second portion of modulation symbols belong to modulation symbols,

12. The method according to any one of claims 9 to 11, further comprising:

transmitting first indication information, wherein the first indication information meets any one of the following:

13. The method according to any one of claims 9 to 12, further comprising:

receiving a first demodulation reference signal (DMRS) and a second DMRS, wherein antenna ports of the first DMRS and the second DMRS are the same, the first DMRS corresponds to the first frequency domain resource, and the second DMRS corresponds to the second frequency domain resource;

and adopting the first DMRS to assist in demodulating the first signal, and adopting the second DMRS to assist in demodulating the second signal.

14. The method according to any of claims 9 to 13, wherein the receiving the first partial signal on the first frequency domain resource is preceded by receiving the second partial signal on the second frequency domain resource, the method further comprising:

transmitting second indication information, wherein the second indication information indicates: each of the at least two partial signals is transmitted on a different frequency domain resource and/or transmitted using a different beam.

15. The method according to any one of claims 9 to 14, further comprising:

And sending third indication information, wherein the third indication information indicates transmission resources, and the transmission resources comprise the first frequency domain resources and the second frequency domain resources.

16. The method according to any one of claims 1 to 15, wherein the single carrier processing comprises: discrete fourier transform, DFT, operation.

17. The method according to any of claims 1 to 16, wherein a ratio between a number of frequency domain units in the first frequency domain resource and a number of frequency domain units in the second frequency domain resource is the same as a ratio between a number of symbols in a first part of modulation symbols and a number of symbols in the second part of modulation symbols.

18. The method according to any one of claims 1 to 17, wherein,

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

19. The method according to any one of claims 1 to 17, wherein,

and if the allocated resources further comprise third frequency domain resources, the third frequency domain resources do not transmit signals, or the signals transmitted on the third frequency domain resources are preset signals.

20. The method according to claim 8 or 15, wherein the transmission resource is a configuration grant CG resource.

21. A communication device comprising means or units for performing the method of any one of claims 1 to 20.

22. A communication device comprising a processor for executing a computer program or instructions stored in a memory to cause the device to perform the method of any one of claims 1 to 20.

23. The apparatus of claim 22, further comprising the memory and/or a communication interface coupled with the processor,

the communication interface is used for inputting and/or outputting information.

24. A computer readable storage medium, characterized in that it has stored thereon a computer program or instructions, which when run on a communication device, cause the communication device to perform the method according to any of claims 1 to 20.