Configuration method and communication device

Abstract

The invention provides a configuration method and a communication device. The method comprises the following steps: receiving configuration information from network equipment; the configuration information comprises first indication information and a first parameter corresponding to a symbol in the first signal, the first indication information is used for indicating a guard interval configuration mode of the first signal, the first parameter is used for indicating the number of zero data in a component signal, and the component signal is located in the symbol corresponding to the first parameter; and demodulating the first signal based on the configuration information, or generating the first signal based on the configuration information. According to the invention, the symbol average power is improved, and the signal transmission is ensured.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a configuration method and a communication device. Background Art

[0002] Multipath is a propagation phenomenon that causes a radio signal to reach a receiver via two or more paths. Since the multiple paths have different propagation distances, the signals arrive at the receiver at different times. The difference between the arrival time of the last resolvable delayed signal and the first delayed signal is called the maximum delay spread (MDS).

[0003] When a signal is transmitted through a multipath channel, the same signal will cause interference due to the overlap of multipath propagation at the receiving station, which is called inter-symbol interference (ISI). To address ISI, a protection interval (such as a cyclic prefix (CP)) can usually be added before the orthogonal frequency division multiplexing (OFDM) symbol is sent to the channel. As long as the protection interval is greater than the MDS of the channel, the impact of ISI can be completely eliminated in theory.

[0004] In order to flexibly configure the CP length according to user needs, the CP can be flexibly configured by duplicating blocks, adding unique words (UW) signals, or puncturing the tail of the previous symbol. Zero head (ZH) and / or zero tail (ZT) can also be used to reduce the interference caused by MDS exceeding CP. However, these methods may cause the problem of reduced symbol average power, thereby affecting signal transmission. Summary of the invention

[0005] The present application proposes a configuration method and a communication device, which are beneficial to improving the average power of symbols and ensuring signal transmission based on the method described in the present application.

[0006] In a first aspect, the present application provides a configuration method, the method comprising: receiving configuration information from a network device; the configuration information comprising first indication information and a first parameter corresponding to a symbol in a first signal, the first indication information being used to indicate a protection interval configuration method of the first signal, the first parameter being used to indicate the amount of zero data in a component signal, the component signal being located in the symbol corresponding to the first parameter; demodulating the first signal based on the configuration information, or generating the first signal based on the configuration information.

[0007] Based on the method described in the first aspect, by boosting the power of non-zero signals of certain symbols in the first signal, the average power of the symbols is increased, thereby ensuring signal transmission and improving demodulation performance. In the specific process, the network device is required to send configuration information to the terminal device, through which the symbols for power boosting in the first signal and the number of zero data of the component signals in these symbols can be clearly defined, so that the first signal is demodulated or modulated in a corresponding manner, which can improve the demodulation performance and will not affect channel estimation and equalization.

[0008] In a possible implementation, the guard interval configuration mode of the first signal is a first guard interval configuration mode, the first signal includes a first symbol and a second symbol, the first symbol is the previous symbol of the second symbol, and the second symbol includes a zero head ZH signal and / or a zero tail ZT signal; in the first guard interval configuration mode, the first parameter corresponding to the second symbol indicates the number of zero data of the ZH signal and / or the ZT signal in the second symbol. Based on this mode, inter-symbol interference can be avoided, and the average power of the symbol can be increased in the first guard interval configuration mode to ensure signal transmission.

[0009] In a possible implementation, the first signal further includes a third symbol, the third symbol is a symbol preceding the first symbol, the third symbol includes a ZH signal, and the tail signal in the third symbol is replaced by a component signal in the first symbol; in the first guard interval configuration mode, the first parameter corresponding to the third symbol indicates the number of zero data of the ZH signal in the third symbol. Based on this method, inter-symbol interference can be avoided, and the average power of the symbol can be increased in the first guard interval configuration mode to ensure signal transmission.

[0010] In one possible implementation, the first symbol is any one of the following symbols: demodulation reference signal DMRS, channel state information reference signal CSI-RS, physical downlink control channel PDCCH, physical uplink control channel PUCCH, channel sounding reference signal SRS, synchronization signal block SSB, ultra-reliable low latency communication URLLC.

[0011] In a possible implementation, the protection interval configuration mode of the first signal is the second protection interval configuration mode, each symbol in the first signal includes a first copy block and a second copy block; the first signal includes a fourth symbol and a fifth symbol, the fourth symbol is the previous symbol of the fifth symbol; the fourth symbol is the other symbol in the first signal except the first symbol, and the fifth symbol is the other symbol in the first signal except the last symbol; the end position of the first copy block of the fourth symbol is the cyclic prefix CP interception point of the fourth symbol, and the end position of the second copy block of the fourth symbol is the end position of the fourth symbol; the end position of the first copy block of the fifth symbol is the CP interception point of the fifth symbol, and the end position of the second copy block of the fifth symbol is the end position of the fifth symbol; the data of the second copy block of the fourth symbol is the same as the data of the first copy block of the fifth symbol; under the second protection interval configuration mode, if the first copy block of the fourth symbol is a zero signal and the second copy block of the fifth symbol is a zero signal, the first parameter corresponding to the fourth symbol indicates the number of zero data of the first copy block and the second copy block in the fourth symbol, and the first parameter corresponding to the fifth symbol indicates the number of zero data of the first copy block and the second copy block in the fifth symbol. Based on this method, the average power of symbols can be increased in the second guard interval configuration mode to ensure signal transmission.

[0012] In a possible implementation, the first signal includes a sixth symbol and a seventh symbol, the sixth symbol is the previous symbol of the seventh symbol; the sixth symbol is the first symbol of the first signal; the end position of the first copy block of the sixth symbol is the CP interception point of the sixth symbol, and the end position of the second copy block of the sixth symbol is the end position of the sixth symbol; the end position of the first copy block of the seventh symbol is the CP interception point of the seventh symbol, and the end position of the second copy block of the seventh symbol is the end position of the seventh symbol; the data of the second copy block of the sixth symbol is the same as the data of the first copy block of the seventh symbol; in the second protection interval configuration mode, if the second copy block of the sixth symbol is a zero signal, the first parameter corresponding to the sixth symbol indicates the number of zero data of the first copy block and the second copy block in the sixth symbol. Based on this method, the average power of the symbol can be improved in the second protection interval configuration mode to ensure signal transmission.

[0013] In a possible implementation, the sixth symbol also includes a ZH signal; and the first parameter corresponding to the sixth symbol further indicates the amount of zero data of the ZH signal in the sixth symbol. Based on this approach, inter-symbol interference can be further avoided, and the average power of the symbol can be increased under the second guard interval configuration mode to ensure signal transmission.

[0014] In a possible implementation, the first signal includes an eighth symbol and a ninth symbol, the eighth symbol is the previous symbol of the ninth symbol; the ninth symbol is the last symbol of the first signal; the end position of the first copy block of the eighth symbol is the CP interception point of the eighth symbol, and the end position of the second copy block of the eighth symbol is the end position of the eighth symbol; the end position of the first copy block of the ninth symbol is the CP interception point of the ninth symbol, and the end position of the second copy block of the ninth symbol is the end position of the ninth symbol; the data of the second copy block of the eighth symbol is the same as the data of the first copy block of the ninth symbol; in the second protection interval configuration mode, if the first copy block of the ninth symbol is a zero signal, the first parameter corresponding to the ninth symbol indicates the number of zero data of the first copy block and the second copy block in the ninth symbol. Based on this method, the average power of the symbol can be improved in the second protection interval configuration mode to ensure signal transmission.

[0015] In a possible implementation, the ninth symbol further includes a ZH signal and / or a ZT signal; and the first parameter corresponding to the ninth symbol further indicates the number of zero data of the ZH signal and / or the ZT signal in the ninth symbol. Based on this approach, inter-symbol interference can be further avoided, and the average power of the symbol can be increased under the second guard interval configuration mode to ensure signal transmission.

[0016] In a possible implementation, the guard interval configuration mode of the first signal is the third guard interval configuration mode, the tenth symbol is any symbol in the first signal, the tenth symbol includes a tail unique word UW signal, and the end position of the tail UW signal of the tenth symbol is the end position of the tenth symbol; under the third guard interval configuration mode, if the tail UW signal is a zero signal, the first parameter corresponding to the tenth symbol indicates the number of zero data of the tail UW signal in the tenth symbol. Based on this method, the average power of the symbol can be increased under the third guard interval configuration mode to ensure signal transmission.

[0017] In a possible implementation, the tenth symbol also includes a header UW signal, and the starting position of the header UW signal of the tenth symbol is the starting position of the tenth symbol; if the header UW signal is a zero signal, the first parameter corresponding to the tenth symbol also indicates the number of zero data of the header UW signal in the tenth symbol. Based on this method, inter-symbol interference can be further avoided, and the average power of the symbol can be increased under the third guard interval configuration mode to ensure signal transmission.

[0018] In a possible implementation, generating the first signal based on the configuration information includes: processing the first data corresponding to the symbol based on the first parameter to obtain the second data corresponding to the symbol; the first data is the input data of the discrete Fourier transform DFT, and the second data is the output data of the DFT; processing the second data corresponding to the symbol to obtain the first signal; wherein the symbol includes the second symbol and / or the third symbol; or, the symbol includes one or more of the following symbols: the fourth symbol, the fifth symbol, the sixth symbol, and the ninth symbol; or, the symbol includes the tenth symbol. Based on this method, the average power of the symbol can be increased, the demodulation performance can be improved, and the signal transmission can be guaranteed.

[0019] In a possible implementation, demodulating the first signal based on the configuration information includes: processing the first signal to obtain second data corresponding to the symbol; the second data is the output data of DFT; processing the second data corresponding to the symbol based on the first parameter to obtain first data corresponding to the symbol; the first data is the input data of DFT; wherein the symbol includes the second symbol and / or the third symbol; or, the symbol includes one or more of the following symbols: the fourth symbol, the fifth symbol, the sixth symbol, the ninth symbol; or, the symbol includes the tenth symbol. Based on this method, the average power of the symbol can be increased, the demodulation performance can be improved, and the signal transmission can be guaranteed.

[0020] In a possible implementation, the amplitude expansion factor of the first data is Where M is the size of DFT, N 0 is the first parameter corresponding to the symbol.

[0021] In a second aspect, the present application provides a configuration method, which includes: sending configuration information to a terminal device; the configuration information includes first indication information and a first parameter corresponding to a symbol in a first signal, the first indication information is used to indicate a protection interval configuration method of the first signal, and the first parameter is used to indicate the amount of zero data in a component signal, and the component signal is located in the symbol corresponding to the first parameter; receiving a first signal from the terminal device, the first signal being generated based on the configuration information.

[0022] The beneficial effects of the possible implementation methods of the second aspect can be found in the beneficial effects of the possible implementation methods of the first aspect, and will not be repeated here.

[0023] In a possible implementation, the protection interval configuration mode of the first signal is a first protection interval configuration mode, the first signal includes a first symbol and a second symbol, the first symbol is the previous symbol of the second symbol, and the second symbol includes a zero start ZH signal and / or a zero tail ZT signal; under the first protection interval configuration mode, the first parameter corresponding to the second symbol indicates the number of zero data of the ZH signal and / or the ZT signal in the second symbol.

[0024] In one possible implementation, the first signal also includes a third symbol, which is the previous symbol of the first symbol, and the third symbol includes a ZH signal, and the tail signal in the third symbol is replaced by the component signal in the first symbol; under the first protection interval configuration mode, the first parameter corresponding to the third symbol indicates the number of zero data of the ZH signal in the third symbol.

[0025] In one possible implementation, the first symbol is any one of the following symbols: demodulation reference signal DMRS, channel state information reference signal CSI-RS, physical downlink control channel PDCCH, physical uplink control channel PUCCH, channel sounding reference signal SRS, synchronization signal block SSB, ultra-reliable low latency communication URLLC.

[0026] In a possible implementation, the protection interval configuration mode of the first signal is the second protection interval configuration mode, each symbol in the first signal includes a first copy block and a second copy block; the first signal includes a fourth symbol and a fifth symbol, the fourth symbol is the previous symbol of the fifth symbol; the fourth symbol is the other symbol in the first signal except the first symbol, and the fifth symbol is the other symbol in the first signal except the last symbol; the end position of the first copy block of the fourth symbol is the cyclic prefix CP interception point of the fourth symbol, and the end position of the second copy block of the fourth symbol is the end position of the fourth symbol; the end position of the first copy block of the fifth symbol is the CP interception point of the fifth symbol, and the end position of the second copy block of the fifth symbol is the end position of the fifth symbol; the data of the second copy block of the fourth symbol is the same as the data of the first copy block of the fifth symbol; under the second protection interval configuration mode, if the first copy block of the fourth symbol is a zero signal and the second copy block of the fifth symbol is a zero signal, the first parameter corresponding to the fourth symbol indicates the number of zero data of the first copy block and the second copy block in the fourth symbol, and the first parameter corresponding to the fifth symbol indicates the number of zero data of the first copy block and the second copy block in the fifth symbol.

[0027] In one possible implementation, the first signal includes a sixth symbol and a seventh symbol, the sixth symbol being the previous symbol of the seventh symbol; the sixth symbol being the first symbol of the first signal; the end position of the first copy block of the sixth symbol being the CP interception point of the sixth symbol, and the end position of the second copy block of the sixth symbol being the end position of the sixth symbol; the end position of the first copy block of the seventh symbol being the CP interception point of the seventh symbol, and the end position of the second copy block of the seventh symbol being the end position of the seventh symbol; the data of the second copy block of the sixth symbol being the same as the data of the first copy block of the seventh symbol; under the second protection interval configuration mode, if the second copy block of the sixth symbol is a zero signal, the first parameter corresponding to the sixth symbol indicates the number of zero data of the first copy block and the second copy block in the sixth symbol.

[0028] In a possible implementation manner, the sixth symbol further includes a ZH signal; and the first parameter corresponding to the sixth symbol further indicates the amount of zero data of the ZH signal in the sixth symbol.

[0029] In a possible implementation, the first signal includes an eighth symbol and a ninth symbol, the eighth symbol being the previous symbol of the ninth symbol; the ninth symbol being the last symbol of the first signal; the end position of the first copy block of the eighth symbol being the CP interception point of the eighth symbol, and the end position of the second copy block of the eighth symbol being the end position of the eighth symbol; the end position of the first copy block of the ninth symbol being the CP interception point of the ninth symbol, and the end position of the second copy block of the ninth symbol being the end position of the ninth symbol; the data of the second copy block of the eighth symbol being the same as the data of the first copy block of the ninth symbol; under the second protection interval configuration mode, if the first copy block of the ninth symbol is a zero signal, the first parameter corresponding to the ninth symbol indicates the number of zero data in the first copy block and the second copy block in the ninth symbol.

[0030] In a possible implementation manner, the ninth symbol further includes a ZH signal and / or a ZT signal; and the first parameter corresponding to the ninth symbol further indicates the amount of zero data of the ZH signal and / or the ZT signal in the ninth symbol.

[0031] In one possible implementation, the protection interval configuration mode of the first signal is the third protection interval configuration mode, the tenth symbol is any symbol in the first signal, the tenth symbol includes a tail unique word UW signal, and the end position of the tail UW signal of the tenth symbol is the end position of the tenth symbol; under the third protection interval configuration mode, if the tail UW signal is a zero signal, the first parameter corresponding to the tenth symbol indicates the number of zero data in the tail UW signal in the tenth symbol.

[0032] In one possible implementation, the tenth symbol also includes a header UW signal, and the starting position of the header UW signal of the tenth symbol is the starting position of the tenth symbol; if the header UW signal is a zero signal, the first parameter corresponding to the tenth symbol also indicates the number of zero data in the header UW signal in the tenth symbol.

[0033] In a possible implementation, the method also includes: processing the first signal to obtain second data corresponding to the symbol; the second data is output data of discrete Fourier transform DFT; processing the second data corresponding to the symbol based on the first parameter to obtain first data corresponding to the symbol; the first data is input data of DFT; wherein the symbol includes the second symbol and / or the third symbol; or, the symbol includes one or more of the following symbols: a fourth symbol, a fifth symbol, a sixth symbol, a ninth symbol; or, the symbol includes the tenth symbol.

[0034] In a possible implementation, the amplitude expansion factor of the first data is Where M is the size of DFT, N 0 is the first parameter corresponding to the symbol.

[0035] In a third aspect, the present application provides a communication device, the communication device comprising a processor, when the processor calls a computer program in a memory, the method described in the first aspect or the second aspect is executed.

[0036] In a fourth aspect, the present application provides a communication device, comprising a processor and a memory, wherein the processor and the memory are coupled; the processor is used to implement the method described in the first aspect or the second aspect.

[0037] In a fifth aspect, the present application provides a communication device, which includes a processor, a memory and a transceiver, and the processor and the memory are coupled; the transceiver is used to send and receive data, and the processor is used to implement the method described in the first aspect or the second aspect.

[0038] In a sixth aspect, the present application provides a chip comprising a processor and an interface, wherein the processor and the interface are coupled; the interface is used to receive or output signals, and the processor is used to execute code instructions so that the method described in the first aspect or the second aspect is executed.

[0039] In a seventh aspect, the present application provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed by a communication device, the method described in the first aspect or the second aspect is implemented.

[0040] In an eighth aspect, the present application provides a communication system, which includes a terminal device and a network device, the terminal device is used to execute the method described in the first aspect, and the network device is used to execute the method described in the second aspect.

[0041] In a ninth aspect, the present application provides a computer program product comprising instructions, and when a computer reads and executes the computer program product, the computer executes the method described in the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of a communication system provided in an embodiment of the present application;

[0043] Figure 2 is a schematic diagram of multipath propagation (a transmitted signal reaches a receiver via two paths) provided in an embodiment of the present application;

[0044] Figure 3 is a schematic diagram of adding a cyclic prefix (CP) provided in an embodiment of the present application;

[0045] Figure 4 It is a schematic diagram of a forward shift of an FFT window position provided in an embodiment of the present application;

[0046] Figure 5A It is a schematic diagram of a flexible CP length configuration solution 1 provided in an embodiment of the present application;

[0047] Figure 5B is a schematic diagram of a duplicate block in a symbol provided in an embodiment of the present application;

[0048] Figure 5C This is a schematic diagram of a second flexible CP length configuration scheme provided in an embodiment of the present application;

[0049] Figure 5D This is a schematic diagram of a third flexible CP length configuration scheme provided in an embodiment of the present application;

[0050] Figure 5E is a schematic diagram of a ZH signal and / or a ZT signal in a symbol provided by an embodiment of the present application;

[0051] Figure 6 It is a flowchart of a configuration method provided in an embodiment of the present application;

[0052] Figure 7 It is a schematic diagram of a power boost of a symbol in a first guard interval configuration mode provided by an embodiment of the present application;

[0053] Fig. 8A It is a schematic diagram of a power boost of a symbol in a second guard interval configuration mode provided by an embodiment of the present application;

[0054] Figure 8B It is a schematic diagram of another power boost of a symbol in a second guard interval configuration mode provided in an embodiment of the present application;

[0055] Figure 8C It is a schematic diagram of another power boost of a symbol in a second guard interval configuration mode provided in an embodiment of the present application;

[0056] Fig.8D It is a schematic diagram of another power boost of a symbol in a second guard interval configuration mode provided in an embodiment of the present application;

[0057] Fig. 8E It is a schematic diagram of another power boost of a symbol in a second guard interval configuration mode provided in an embodiment of the present application;

[0058] Fig.8F It is a schematic diagram of another power boost of a symbol in a second guard interval configuration mode provided in an embodiment of the present application;

[0059] Fig. 9A It is a schematic diagram of a power boost of a symbol in a third guard interval configuration mode provided in an embodiment of the present application;

[0060] Fig. 9B It is a schematic diagram of another power boost of a symbol in a third guard interval configuration mode provided in an embodiment of the present application;

[0061] Fig.10 is a curve diagram of demodulation BLER performance of a symbol after power boosting and before power boosting provided in an embodiment of the present application;

[0062] Fig.11 It is a flowchart of another configuration method provided in an embodiment of the present application;

[0063] Fig.12 is a structural diagram of a communication device provided in an embodiment of the present application;

[0064] Fig.13 is a structural diagram of another communication device provided in an embodiment of the present application;

[0065] Fig.14 It is a schematic diagram of the structure of a chip provided in an embodiment of the present application. DETAILED DESCRIPTION

[0066] The terms "first" and "second" and the like in the specification, claims and drawings of this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0067] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0068] In the present application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three and more than three, and "and / or" is used to describe the corresponding relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0069] In order to better understand the embodiments of the present application, the system architecture involved in the embodiments of the present application is first introduced below:

[0070] The technical solution of the embodiment of the present application can be applied to various communication systems, such as satellite communication systems and traditional mobile communication systems. Among them, the satellite communication system can be integrated with the traditional mobile communication system (i.e., the ground communication system). Mobile communication systems include, for example, wireless local area network (WLAN) communication system, wireless fidelity (Wi-Fi) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), fifth generation (5G) system or new radio (NR), and other future communication systems, such as the sixth generation (6G) system, etc., and also support communication systems that integrate multiple wireless technologies, for example, it can also be applied to non-terrestrial networks (NTN) such as drones, satellite communication systems, and high altitude platform stations (HAPS) communications. The system integrates ground mobile communication networks. It is understandable that the system architecture described in the embodiments of the present application is for more clearly illustrating the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided in the embodiments of the present application.

[0071] Figure 1 Schematic diagram of a communication system applicable to an embodiment of the present application. The communication system includes at least one network device and at least one terminal device. Figure 1 The network device and multiple terminal devices are used as examples. The multiple terminal devices can be cellular phones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radio devices, global positioning systems, personal digital assistants (PDAs) and / or any other suitable devices for communicating on wireless communication systems, and can all be connected to the network device. The terminal devices can all communicate with the network device. In addition, terminal devices can also communicate with each other, such as device-to-device (D2D) transmission. Of course, Figure 1 The number of terminal devices and network devices in the example is just an example, and can be less or more. Figure 1 The terminal equipment and network equipment involved in the communication system are described in detail.

[0072] 1. Terminal equipment

[0073] The terminal device mentioned in the embodiments of the present application may be a device with wireless transceiver functions, and may specifically refer to user equipment (UE), access terminal, subscriber unit, user station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication equipment, user agent or user device. The terminal device may also be a satellite phone, a cellular phone, a smart phone, a wireless data card, a wireless modem, a machine type communication device, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a PDA, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a communication device carried on a high-altitude aircraft, a wearable device, a drone, a robot, a terminal in D2D communication, a terminal in vehicle to everything (V2X), a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, or a terminal device in a future communication network, etc., and the present application does not limit it. In addition, in this application, unless otherwise specified, "terminal device" may refer to the terminal device itself or a component in the terminal device, such as a chip system, SoC, which may be installed in the terminal device.

[0074] 2. Network equipment

[0075] The network device mentioned in the embodiments of the present application has a wireless transceiver function and is used to communicate with the terminal. Specifically, it may refer to a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation base station (nextgeneration NodeB, gNB) in a 5G mobile communication system, a next generation base station in a sixth generation (6th generation, 6G) mobile communication system, an access network device or a module of an access network device in an open access network (open RAN, ORAN) system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The network device may also be a module or unit that can implement some functions of a base station. For example, the network device may be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc., described below. Among them, in the ORAN system, CU can also be called O-CU, DU can also be called open (open, O)-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CUP-UP, and RU can also be called O-RU. Exemplarily, the base station in the embodiment of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, next generation base stations (gNodeB, gNB), transmission and receiving points (transmitting and receiving point, TRP), transmission points (transmitting point, TP), mobile switching centers, and can also be devices to devices (Device-to-Device, D2D), vehicle-to-everything (vehicle-to-everything, V2X), machine-to-machine (machine-to-machine, M2M) communications, Internet of Things (Internet of Things) communications, etc., which undertake wireless access functions. In addition, in this application, unless otherwise specified, "network device" may refer to the network device itself or a component in the network device, such as a chip system, a system-on-a-chip (SOC), which may be installed in the network device.

[0076] In order to facilitate understanding of the solution provided by the embodiment of the present application, the following introduces the relevant concepts involved in the embodiment of the present application:

[0077] 1. Channel, multipath and maximum delay spread (MDS)

[0078] In radio systems, the medium that propagates a signal from a transmitter to a receiver is called a channel. Multipath is a propagation phenomenon that causes a radio signal to take two or more paths to reach a receiver. Causes of multipath include atmospheric ducting, ionospheric reflection and refraction, and reflections from water and land objects such as mountains and buildings. Figure 2 Give a schematic diagram of multipath propagation (a transmitted signal takes two paths to reach the receiver). Figure 2 In the wireless transmission environment, the signal sent by the network device can reach the terminal device through the line of sight (LOS) path and the non-line of sight (NLOS) path, where the LOS path refers to the straight path of propagation between the terminal device and the network device; the NLOS path refers to the path where the straight path of signal transmission between the terminal device and the network device is blocked due to the presence of obstacles in the wireless transmission environment, and the radio waves will propagate in non-line-of-sight propagation modes such as reflection, refraction and diffraction.

[0079] Since these multiple paths of the signal have different propagation distances, they arrive at the receiver at different times. The difference between the time it takes for the signal to arrive at the receiver via the first path and the time it takes for the signal to arrive at the receiver via the last path is called the maximum delay spread (MDS).

[0080] 2. Orthogonal frequency division multiplexing (OFDM) and cyclic prefix (CP)

[0081] OFDM is a high-speed data transmission method. Its basic idea is to divide a given channel into many sub-channels in the frequency domain, and keep the sub-channels orthogonal to each other. The high-speed data stream is distributed to multiple orthogonal sub-channels for transmission, so that the symbol rate on the sub-channel is greatly reduced, and the duration of a single data symbol is greatly prolonged, so it has a strong ability to resist delay spread. OFDM is a multi-carrier modulation (MCM) technology. The basic idea of ​​multi-carrier modulation is to transform the data stream into N sub-data streams with lower rates, and use these sub-data streams to modulate N sub-carriers respectively, and then transmit them in parallel. Since the rate of the sub-data stream is 1 / N of the original rate, that is, the symbol period is expanded to N times the original rate, which is much larger than the maximum delay spread of the channel. In this way, multi-carrier modulation divides a broadband frequency selective channel into N narrowband flat fading channels, so that equalization is relatively simple, and thus has a strong ability to resist multipath fading and pulse interference, which is particularly suitable for high-speed wireless data transmission. OFDM is a multi-carrier modulation in which sub-carriers overlap with each other. Therefore, in addition to the advantages of multi-carrier modulation mentioned above, it also has higher spectrum utilization. OFDM selects sub-carriers that are orthogonal to each other in the time domain. Although they overlap with each other in the frequency domain, they can still be separated at the receiving end.

[0082] In OFDM systems, when signals are transmitted through multipath channels, the same signal will cause interference due to the overlap of multipath propagation at the receiving station, which is called inter-symbol interference (ISI). Therefore, to address ISI, a guard interval (such as CP) can usually be added before the OFDM symbol is sent to the channel. As long as the guard interval is larger than the MDS of the channel, the influence of ISI can be completely eliminated in theory. The guard interval can be obtained by adding CP to the starting position of the symbol. Figure 3 As shown, an OFDM symbol Include valid data x k and CP (redundant data), the specific implementation process is to copy x k The last G sampling points of x are added to k The starting position of the time domain OFDM symbol can be obtained It can be understood that CP and x k The last G sampling points (i.e. x k [NG],...,x k The sampling index corresponding to the CP intercept point is NG-1, that is, the next sampling point of the CP intercept point is equal to the first sampling point of the CP.

[0083] At the receiving end, the OFDM signal can be demodulated by inverse processing. Assuming that time and frequency synchronization can be achieved and the CP length is not less than MDS, after the CP removal operation (i.e., removing the first G sampling points in the received OFDM signal), a data block containing N sampling points with no ISI can be obtained, which is also equal to x k The circular convolution with the channel impulse response. The time domain circular convolution can be converted into the frequency domain point multiplication through the fast Fourier transform (FFT), and then the channel equalization can be completed with low complexity by using the frequency domain single tap equalization.

[0084] There may be timing synchronization errors in actual links. In order to minimize the negative impact of ISI in the presence of timing errors, the receiver often moves the FFT window at the receiving end forward, such as Figure 4 As shown. The shift amount is generally 10% to 20% of the CP length, that is, in the absence of a timing error, the CP length is equivalently reduced by 10% to 20%. If the MDS plus the shift amount of the FFT window exceeds the CP length, the symbol will also be affected by ISI. In an embodiment of the present application, exceeding the CP or insufficient (insufficient) CP can be understood as the channel MDS exceeding the CP, or the sum of the channel MDS and the timing synchronization error exceeding the CP. In summary, only when the CP length is sufficient can ISI be avoided and the channel linear convolution can be converted to circular convolution, enabling low-complexity frequency domain channel equalization.

[0085] 3. Discrete Fourier transform spread OFDM (DFT-s-OFDM)

[0086] DFT-s-OFDM defines the data block s transmitted in the time domain k , there is an additional discrete Fourier transform (DFT) process before the OFDM process, that is, for each data block s containing M data k Perform M-point DFT operation. Through this operation, the DFT-s-OFDM signal has the characteristics of a single carrier, with a peak to average power ratio (PAPR) much lower than that of multi-carrier signals such as OFDM. Therefore, under the same power amplifier, DFT-s-OFDM can provide greater output power and higher power amplifier efficiency, thereby achieving the purpose of improving coverage and reducing energy consumption.

[0087] s kIt may include modulation symbols and / or redundant signal sampling points. The modulation symbol may be a modulation symbol obtained by modulating the (coded) bit stream. The modulation method may include pulse amplitude modulation (PAM), phase shift keying (PSK), quadrature amplitude modulation (QAM), offset quadrature amplitude modulation (OQAM), amplitude phase shift keying (APSK), etc.

[0088] The redundant signal sampling points may include a phase tracking reference signal (PTRS) sampling point, a unique word (UW), zero, and the like.

[0089] 4. Time domain linear convolution single carrier (SC) modulation

[0090] In time-domain linear convolution SC modulation, a data sequence is filtered by shaping to generate a signal x. The shaping filtering here includes two processes: upsampling and filtering (i.e., linear convolution of the upsampled signal and the shaped pulse).

[0091] The data sequence includes modulation symbols and / or redundant signal sampling points. The modulation symbol may be a modulation symbol obtained by modulating a (coded) bit stream. The modulation mode may include PAM, PSK, QAM, OQAM, APSK, etc. The redundant signal sampling points may include PTRS sampling points, UW, zero, etc.

[0092] In DFT-s-OFDM, the upsampling factor is The shaped pulse has a period, which is N. Therefore, the DFT-s-OFDM signal x k Can be understood as data block s k Circular convolution with shaped pulses.

[0093] 5. Single carrier frequency domain equalization (SC-FDE)

[0094] Based on the time-domain linear convolution SC modulation, SC-FDE first divides the data sequence into a series of data blocks of length M through the partition module. kEach data block adds Q length CP, that is, copies s k The last Q data to s k (At this time, the CP intercept point corresponds to the data index MQ-1). Due to the CP, the linear convolution of the multipath channel is converted into a circular convolution, and then the receiver can use a low-complexity single-tap frequency domain channel equalization.

[0095] 6. Length of CP

[0096] The NR protocol can support two CP lengths, namely normal CP (NCP) and extended CP (ECP). Among them, the overhead of NCP is about 144 / (2048+144)=6.6%, while the overhead of ECP is about 512 / (512+2048)=20%. Therefore, the overhead of ECP is much higher than that of NCP.

[0097] Currently, CP is configured at the cell level, that is, all users in the cell are configured with the same CP length. If the MDS in the cell is less than the NCP, all users in the cell are configured with the NCP; if the MDS in the cell is greater than the NCP, all users in the cell are configured with the ECP. However, this may cause spectrum efficiency loss for some users in the cell, and even the situation where the MDS exceeds the CP. For example, the MDS of a user corresponds to 20 samples, and the effective data part of the OFDM / DFT-s-OFDM symbol contains 2048 samples; according to the minimum CP overhead principle, a CP length of 20 can avoid ISI and ICI; however, under the cell-level CP configuration, the NCP length needs to be configured, and the NCP length is 144, which causes spectrum efficiency loss.

[0098] In order to flexibly configure the CP length according to user needs, the following three solutions can be adopted.

[0099] Solution 1: Flexible configuration of CP length based on replication blocks

[0100] Solution 1 is applicable to single-carrier waveforms, such as DFT-s-OFDM waveforms and time-domain linear convolution SC waveforms. The so-called replication block refers to the replicated data block. Figure 5A Demonstrate the technical effect of the solution. Figure 5A (a) shows two serially transmitted (including CP (NCP or ECP)) DFT-s-OFDM symbols, denoted as and The subscript "k" represents the symbol index. The D2 part signal (the end position is The end position of The D2 part (the end position is the CP interception point) of the same. It should be understood that the same here is not necessarily the same in an absolute sense, and can also mean approximately the same.

[0101] The specific implementation process is before DFT, such as Figure 5A As shown in (b), two adjacent data blocks of length M are assumed to be denoted by s k-1 and k Do forward / backward copying. Take backward copying as an example. k After The data (i.e. D2 part) is replaced by s k-1 After data; then Figure 5A As shown in (c), after the IFFT output, a cyclic shift is performed first, and then a CP is added. For example, x k Do N CP Circular shift of point And x k Without shifting, adding CP gives At this time, we got Figure 5A The result shown in (a).

[0102] Based on this method, before single carrier modulation, The D2 part can be used as Supplementary CP (SCP), The equivalent CP length is equal to the CP length (ie N CP ) plus the SCP length (i.e., the length of the D2 portion). The D2 portion of the signal can be called a replica block, and the length of the replica block can be adjusted to achieve flexible configuration of the equivalent CP length. Optionally, performing a cyclic shift on the IFFT output in the time domain can also be equivalent to performing phase compensation on the IFFT input in the frequency domain.

[0103] The so-called replication block can be the s mentioned above k-1 After The data (i.e., D2 part) can be random, fixed, or a combination of random and fixed. Random data, such as communication data, symbol and They are all data DFT-s-OFDM symbols. Determined data, such as PTRS sampling points, DMRS sampling points, or UW. In particular, in order to follow the DMRS signal design in NR, DMRS can only be forward copied to the previous symbol adjacent to it, or can only be backward copied to the next symbol adjacent to it.

[0104] When multiple (greater than three) symbols are considered and the replica block length is less than the CP length, each symbol has two replica blocks, which can be recorded as the first replica block and the second replica block. The end position of the first replica block is the CP interception point, and the end position of the second replica block is the end position of the symbol. For example, Figure 5B In the symbol preceding the DMRS symbol, the first replica block is S1 and the second replica block is S2; in the DMRS symbol, the first replica block is S2 and the second replica block is S3; in the symbol following the DMRS symbol, the first replica block is S3 and the second replica block is S4. The second replica block S2 of the symbol preceding the DMRS symbol is the same as the first replica block S2 in the DMRS symbol, and the first replica block S3 of the symbol following the DMRS symbol is the same as the second replica block S3 in the DMRS symbol.

[0105] Solution 2: Flexible configuration of CP length based on unique word (UW) signal

[0106] Solution 2 is applicable to single-carrier waveforms, such as DFT-s-OFDM waveforms and time-domain linear convolution SC waveforms; it is also applicable to multi-carrier waveforms, such as OFDM waveforms. The so-called UW signal is a sequence of a predetermined cyclic prefix, which can be used for channel characteristic detection or as a cyclic prefix to eliminate inter-symbol interference. During reception processing, the receiver first processes the UW signal, obtains the channel characteristics and delay of the received data through UW signal processing, processes the subsequent data segments, eliminates the frequency domain fluctuations caused by multipath transmission of the transmission channel, and then correctly demodulates the data.

[0107] In the second scheme, CP is not added to the symbol, but the equivalent CP is constructed by the UW signal, which is beneficial to reduce the CP overhead. Figure 5C As shown, there are three consecutive symbols, each with a length of N u The tail UW signal of each symbol is the same. The same here does not necessarily mean the same in an absolute sense, but can also mean approximately the same. Optionally, each symbol can also have a head UW signal. Since each UW signal is the same, the tail UW signal of the previous symbol can be used as the equivalent CP of the current symbol. For example, assuming that each symbol has both a tail UW signal and a head UW signal, Figure 5C The tail UW signal of symbol k-1 plus the head UW signal of symbol k can be used as the equivalent CP of symbol k, and the tail UW signal of symbol k and the head UW signal of symbol k+1 can be used as the equivalent CP of symbol k+1. Therefore, the length of the equivalent CP can be flexibly configured by adjusting the length of the UW signal.

[0108] Of course, the lengths of the tail UW signals of all symbols may be equal or unequal. For example, a DMRS symbol and its previous data symbol may have a longer UW signal in order to improve the quality of channel estimation; a data symbol and its previous data symbol may have a shorter UW signal in order to reduce the UW signal overhead.

[0109] Solution 3: Flexibly configure the length of the CP based on the tail of the previous symbol punctured

[0110] Solution 3 is applicable to single-carrier waveforms, such as DFT-s-OFDM waveforms and time-domain linear convolution SC waveforms; it is also applicable to multi-carrier waveforms, such as OFDM waveforms. The so-called puncturing can be understood as using a new signal to replace the original signal. Figure 5D As shown in (a), taking forward puncturing as an example, the D2 part of the current symbol (the end position is the CP interception point) is used to replace the tail part of the previous symbol, and the following is obtained: Figure 5D As shown in (b), the D2 part in the current symbol is exactly the same as the D2 part in the previous symbol, which can achieve lossless CP extension. Therefore, the equivalent CP length can be flexibly configured by adjusting the puncturing length.

[0111] Optionally, in order to reduce the impact of puncturing on the previous symbol, since the receiver does not need to demodulate the UW signal, the punctured position of the previous symbol can be the UW signal.

[0112] 7. Zero Head (ZH) / Zero Tail (ZT)

[0113] The so-called zero head refers to a header sequence whose starting position is the starting position of a symbol, and the header sequence is (approximately) a zero signal; the so-called zero tail refers to a tail sequence whose ending position is the ending position of a symbol, and the tail sequence is (approximately) a zero signal. ZH or ZT can be applied to single-carrier waveforms, such as DFT-s-OFDM waveforms and time-domain linear convolution SC waveforms; it can also be applied to multi-carrier waveforms, such as OFDM waveforms.

[0114] (a) Using ZT to reduce interference to the next symbol

[0115] When MDS exceeds CP, the last part of the signal of symbol k-1 will fall within the RX FFT window of symbol k, causing inter-symbol interference. Figure 5E As shown in (a), if the tail signal of symbol k-1 is (approximately) zero signal (i.e., ZT), even if MDS exceeds CP, interference to symbol k can be avoided (reduced). Optionally, the symbol can have a zero header (ZH) to make the ZT power lower. The length of ZH is shorter than ZT.

[0116] (b) Using ZH to reduce interference from the previous symbol

[0117] When MDS exceeds CP, for symbol k, it does not know whether the last part of the signal of symbol k-1 is zero. If it is not zero, symbol k will still be affected by inter-symbol interference. Therefore, the scheme based on ZT is a passive design. The scheme based on ZH (such as Figure 5E (b) is an active anti-interference design. The header of symbol k is actively designed to be (approximately) zero signal (i.e., ZH). Optionally, the symbol can have ZT in order to make the ZH power lower. The length of ZH is longer than ZT. The receiver does not need to demodulate ZH / ZT. Therefore, even if the header of symbol k is interfered, it will not affect the demodulation performance of the signal in other parts of symbol k.

[0118] (c) Combining ZH and ZT to reduce intersymbol interference

[0119] The main application scenario is that the previous symbol or the next symbol of symbol k is a high-importance symbol. Among them, the high-importance symbols may include synchronization symbols (such as primary synchronization symbols and secondary synchronization symbols), reference symbols (such as demodulation reference signals and channel state information reference signals), control symbols (such as physical downlink control channel symbols and physical uplink control channel symbols), etc., which will provide parameters (such as channel frequency response) for data demodulation in the data sharing channel. For such symbols, for some reasons, such as parameter estimation performance is not affected, it is required not to be interfered with or to be interfered with very little.

[0120] like Figure 5E As shown in (c), if symbol k uses ZH to reduce interference from the previous symbol, and the next symbol of symbol k is a high importance level symbol, then symbol k also needs ZT to reduce interference to the high importance level symbol. Therefore, symbol k has both ZH and ZT. If symbol k uses ZT to reduce interference to the next symbol, and the previous symbol of symbol k is a high importance level symbol (without ZT), in order to reduce the interference of the high importance level symbol to symbol k, symbol k also needs ZH. Therefore, symbol k has both ZH and ZT.

[0121] 8. Symbol average power

[0122] In the NR protocol, the DFT mathematical expression in the DFT-s-OFDM waveform is shown in formula (1):

[0123]

[0124] In formula (1), represents the size of DFT, represents the input of DFT, Represents the output of the DFT. The expected energy value of is 1, that is The expected value of is 1. For example, It can be π / 2-BPSK, BPSK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM complex symbols in section 38.2115.1 of the protocol. Assuming that the IFFT transform size in DFT-s-OFDM modulation is N, the average power expectation value of each sampling point in the DFT-s-OFDM symbol (i.e., the symbol average power) is equal to

[0125] If the DFT input data contains zero data, there is The expected energy of non-zero data is 1. When the DFT transform of formula (1) is used, the expected average power value of each sampling point in the generated DFT-s-OFDM symbol (i.e., the symbol average power) is less than

[0126] Since the assumption that DFT input data contains zero data is valid, for example, the replica block mentioned above can be zero data; the UW signal can be zero data; ZT and ZH can also be zero data. Therefore, when these methods are used to deal with the problem of MDS exceeding CP, the average power of symbols may be reduced, which will affect the transmit power, reduce the symbol demodulation performance, and affect signal transmission.

[0127] In order to improve the average power of symbols and ensure signal transmission, the present application provides a configuration method and a communication device. The configuration method and the communication device provided in the embodiments of the present application are further described in detail below.

[0128] Figure 6 is a flow chart of a configuration method provided in an embodiment of the present application. Figure 6 As shown, the configuration method includes the following steps S601 and S602. Figure 6 The execution subject of the method shown can be a terminal device and a network device. Or, Figure 6 The execution entity of the method shown may be a chip in a terminal device and a chip in a network device, which is not limited in the embodiments of the present application. Figure 6 The method is described by taking a terminal device and a network device as an example of the execution subject.

[0129] S601. A network device sends configuration information to a terminal device, the configuration information including first indication information and a first parameter corresponding to a symbol in a first signal, the first indication information being used to indicate a guard interval configuration mode of the first signal, the first parameter being used to indicate the amount of zero data in a component signal, the component signal being located in the symbol corresponding to the first parameter. Accordingly, the terminal device receives the configuration information from the network device.

[0130] In the embodiment of the present application, the so-called protection interval configuration method can be considered as the above-mentioned flexible configuration CP length scheme. For example, the first protection interval configuration method can be considered as the third scheme for flexibly configuring the CP length (i.e., flexibly configuring the CP length based on the tail of the previous symbol before puncturing), the second protection interval configuration method can be considered as the first scheme for flexibly configuring the CP length (i.e., flexibly configuring the CP length based on the replica block), and the third protection interval configuration method can be considered as the second scheme for flexibly configuring the CP length (i.e., flexibly configuring the CP length based on the UW signal). Of course, the protection interval configuration method here can also adopt other configuration methods, which are not limited here.

[0131] In a possible implementation, the guard interval configuration mode includes a first guard interval configuration mode, a second guard interval configuration mode, and a third guard interval configuration mode. The following describes in detail different guard interval configuration modes.

[0132] Mode 1: The guard interval configuration mode of the first signal is the first guard interval configuration mode. The first guard interval configuration mode here can be considered as the above-mentioned scheme 3 for flexibly configuring the CP length (ie, flexibly configuring the CP length based on the tail of the previous symbol punctured).

[0133] In a specific implementation, when the first signal adopts the first guard interval configuration mode, if the previous symbol or the next symbol of the current symbol is a high importance level symbol, then in order to ensure that the high importance level symbol is not interfered with as much as possible, a ZH signal and / or a ZT signal may exist in the current symbol. Since both the ZH signal and the ZT signal are zero signals, the current symbol will have a problem of reduced symbol average power, which will affect the transmit power, reduce symbol demodulation performance, and affect signal transmission.

[0134] In order to improve the average power of symbols and ensure signal transmission, the power of non-zero signals of certain symbols in the first signal can be increased. Then the key is to determine the symbols that can be powered up and the number of zero data of component signals (such as ZH signals and / or ZT signals) in these symbols. Specifically, the network device can send the configuration information of the first signal to the terminal device, informing the terminal device of the protection interval configuration method adopted by the first signal and the first parameter corresponding to the symbol that is powered up in the first signal. The first parameter here refers to the number of zero data of the component signal in the symbol that is powered up. In this way, after the terminal device receives the first signal, it can determine which symbols in the first signal have been powered up and what kind of power boost has been done according to the configuration information of the first signal, so as to demodulate the first signal in a corresponding manner, which can improve the demodulation performance and will not affect channel estimation and equalization. Among them, the first signal received by the terminal device here can be sent by the network device or by other devices, which is not limited here.

[0135] The high importance level symbols mentioned here can be demodulation reference signal (DMRS), channel state information reference signal (CSI-RS), physical downlink control channel (PDCCH), physical uplink control channel (PUCCH), channel sounding reference signal (SRS), synchronization signal block (SSB), ultra reliable low latency communication (URLLC), etc., which are not limited here. For these high importance level symbols, for some reasons (such as parameter estimation performance is not affected), it is required that they are not interfered with or are interfered with very little, and there is no ZH signal or ZT signal for the high importance level symbols.

[0136] Taking the first symbol as a high importance level symbol as an example, the power boosting of symbols in different situations is described in detail below. Optionally, the first symbol is any one of the following symbols: DMRS, CSI-RS, PDCCH, PUCCH, SRS, SSB, URLLC.

[0137] Case 1: The guard interval configuration mode of the first signal is the first guard interval configuration mode, the first signal includes a first symbol and a second symbol, the first symbol is the previous symbol of the second symbol, and the second symbol includes a ZH signal and / or a ZT signal. At this time, under the first guard interval configuration mode, the first parameter corresponding to the second symbol indicates the number of zero data of the ZH signal and / or the ZT signal in the second symbol.

[0138] The starting position of the ZH signal in the second symbol is the next sampling point of the CP ending position of the second symbol; and the ending position of the ZT signal in the second symbol is the ending position of the second symbol.

[0139] It can be understood that, Figure 7 As shown, in the first guard interval configuration mode, when the previous symbol of the second symbol (i.e., the first symbol) is a symbol of high importance level, if the second symbol contains a ZH signal and / or a ZT signal, the power of the second symbol can be increased. The ZH signal and the ZT signal are zero signals, and the first parameter corresponding to the second symbol indicates the number of zero data of the ZH signal and / or the ZT signal in the second symbol.

[0140] Case 2: The first signal also includes a third symbol, the third symbol is the symbol before the first symbol, the third symbol includes a ZH signal, and the tail signal in the third symbol is replaced by the component signal in the first symbol. At this time, in the first guard interval configuration mode, the first parameter corresponding to the third symbol indicates the number of zero data of the ZH signal in the third symbol.

[0141] Among them, the starting position of the ZH signal in the third symbol is the next sampling point of the CP end position of the third symbol; the end position of the tail signal in the third symbol is the end position of the third symbol; and the end position of the component signal in the first symbol is the CP interception point of the first symbol.

[0142] It can be understood that, Figure 7 As shown, under the first protection interval configuration mode, when the symbol after the third symbol (i.e., the first symbol) is a symbol of high importance level, if there is a ZH signal in the third symbol, the power of the third symbol can be boosted. The ZH signal is a zero signal, and the first parameter corresponding to the second symbol indicates the number of zero data of the ZH signal in the second symbol. After the power of the third symbol is boosted, the tail signal in the third symbol can be replaced by the component signal in the first symbol as an extended CP (SCP) of the first symbol, thereby preventing the first symbol from being interfered.

[0143] Mode 2: The guard interval configuration mode of the first signal is the second guard interval configuration mode. The second guard interval configuration mode here can be considered as the above-mentioned scheme 1 for flexibly configuring the CP length (ie, flexibly configuring the CP length based on the replica block).

[0144] In a specific implementation, when the first signal adopts the second protection interval configuration method, there is a possibility that the duplicate blocks in some symbols are zero signals. At this time, the average power of the symbol will be reduced, thereby affecting the transmission power, reducing the symbol demodulation performance, and affecting signal transmission.

[0145] In order to increase the average power of symbols and ensure signal transmission, the power of non-zero signals of certain symbols in the first signal can be boosted. Then the key is to determine the symbols that can be power-boosted and the number of zero data in the component signals (such as replication blocks) in these symbols. Specifically, the network device can send the configuration information of the first signal to the terminal device, informing the terminal device of the protection interval configuration method adopted by the first signal and the first parameter corresponding to the symbol that is power-boosted in the first signal. The first parameter here refers to the number of zero data in the component signal of the symbol that is power-boosted. In this way, after the terminal device receives the first signal, it can determine which symbols in the first signal have been power-boosted and what kind of power boost has been made based on the configuration information of the first signal, so as to demodulate the first signal in a corresponding manner, which not only improves the demodulation performance, but also does not affect channel estimation and equalization.

[0146] It should be pointed out that not all symbols can have their non-zero signals boosted as long as there are replica blocks with zero signals. Fig. 8A As shown, each symbol in the first signal has two replica blocks. Taking symbol 1 and symbol 2 as examples, symbol 1 has a first replica block (S1) and a second replica block (S2, non-zero signal), and symbol 2 has a first replica block (S2) and a second replica block (zero signal). Among them, the second replica block of symbol 2 is a zero signal. The data of the second replica block of symbol 1 is the same as the data of the first replica block of symbol 2. The second replica block of symbol 1 can be used as a supplementary CP (SCP) of symbol 2, that is, the second replica block of symbol 1 can be used together with the CP of symbol 2 itself as an equivalent CP of symbol 2. Since the second replica block of symbol 2 is a zero signal, if the non-zero signal of symbol 2 is power-boosted at this time, then after the power boost, the data of the first replica block of symbol 2 will be different from the data of the second replica block of symbol 1. At this time, the second replica block of symbol 1 cannot be used as a supplementary CP of symbol 2, which is easy to cause the problem of inter-symbol interference. Therefore, the symbol can be power-boosted only when any of the following conditions is met.

[0147] Assuming that each symbol in the first signal includes a first replica block and a second replica block, different conditions are described below.

[0148] Condition 1: The first signal includes a fourth symbol and a fifth symbol, the fourth symbol is the symbol preceding the fifth symbol; the fourth symbol is the other symbol in the first signal except the first symbol, and the fifth symbol is the other symbol in the first signal except the last symbol. Under the second protection interval configuration mode, if the first replica block of the fourth symbol is a zero signal and the second replica block of the fifth symbol is a zero signal, then the first parameter corresponding to the fourth symbol indicates the number of zero data of the first replica block and the second replica block in the fourth symbol, and the first parameter corresponding to the fifth symbol indicates the number of zero data of the first replica block and the second replica block in the fifth symbol.

[0149] Among them, the end position of the first copy block of the fourth symbol is the CP interception point of the fourth symbol, and the end position of the second copy block of the fourth symbol is the end position of the fourth symbol; the end position of the first copy block of the fifth symbol is the CP interception point of the fifth symbol, and the end position of the second copy block of the fifth symbol is the end position of the fifth symbol; the data of the second copy block of the fourth symbol is the same as the data of the first copy block of the fifth symbol.

[0150] It can be understood that, Figure 8B As shown, for the middle two adjacent symbols of the first signal (i.e., the fourth symbol and the fifth symbol), when condition one is met (the first replica block of the fourth symbol is a zero signal, and the second replica block of the fifth symbol is a zero signal), the power of the fourth symbol and the fifth symbol can be boosted. In order to further reduce the interference introduced when the CP is exceeded, the second replica block of the fourth symbol and the first replica block of the fifth symbol can also be a zero signal, so the first parameter corresponding to the fourth symbol can indicate the number of zero data of the first replica block and the second replica block in the first symbol, and the first parameter corresponding to the fifth symbol can indicate the number of zero data of the first replica block and the second replica block in the fifth symbol.

[0151] Condition 2: The first signal includes a sixth symbol and a seventh symbol, the sixth symbol is the symbol before the seventh symbol; the sixth symbol is the first symbol of the first signal. Under the second guard interval configuration mode, if the second replica block of the sixth symbol is a zero signal, the first parameter corresponding to the sixth symbol indicates the amount of zero data in the first replica block and the second replica block in the sixth symbol.

[0152] Among them, the end position of the first copy block of the sixth symbol is the CP interception point of the sixth symbol, and the end position of the second copy block of the sixth symbol is the end position of the sixth symbol; the end position of the first copy block of the seventh symbol is the CP interception point of the seventh symbol, and the end position of the second copy block of the seventh symbol is the end position of the seventh symbol; the data of the second copy block of the sixth symbol is the same as the data of the first copy block of the seventh symbol.

[0153] It can be understood that, Figure 8CAs shown, when the first symbol of the first signal satisfies condition 2 (the second replica block of the sixth symbol is a zero signal), the power of the first symbol of the first signal can be boosted. In order to construct a circular convolution and reduce the interference introduced when the CP is exceeded, the first replica block of the first symbol can also be a zero signal, so the first parameter corresponding to the first symbol can indicate the number of zero data in the first replica block and the second replica block in the first symbol.

[0154] Alternatively, if Fig.8D As shown, the sixth symbol also includes a ZH signal; the first parameter corresponding to the sixth symbol also indicates the number of zero data of the ZH signal in the sixth symbol.

[0155] It can be understood that in order to reduce the performance degradation of the first symbol caused by the inter-symbol interference introduced when the CP is exceeded, a ZH signal can be further added to the first symbol. Since the ZH signal is a zero signal, the first parameter corresponding to the first symbol also needs to indicate the amount of zero data of the ZH signal in the first symbol.

[0156] Condition 3: The first signal includes an eighth symbol and a ninth symbol, the eighth symbol is the previous symbol of the ninth symbol, and the ninth symbol is the last symbol of the first signal. In the second guard interval configuration mode, if the first replica block of the ninth symbol is a zero signal, the first parameter corresponding to the ninth symbol indicates the number of zero data in the first replica block and the second replica block in the ninth symbol.

[0157] Among them, the end position of the first copy block of the eighth symbol is the CP interception point of the eighth symbol, and the end position of the second copy block of the eighth symbol is the end position of the eighth symbol; the end position of the first copy block of the ninth symbol is the CP interception point of the ninth symbol, and the end position of the second copy block of the ninth symbol is the end position of the ninth symbol; the data of the second copy block of the eighth symbol is the same as the data of the first copy block of the ninth symbol.

[0158] It can be understood that, Fig. 8E As shown, when the last symbol of the first signal satisfies condition three (the first replica block of the ninth symbol is a zero signal), the power of the last symbol of the first signal can be boosted. In order to reduce interference to other users, the second replica block of the last symbol can also be a zero signal. Therefore, the first parameter corresponding to the last symbol can indicate the number of zero data in the first replica block and the second replica block in the last symbol.

[0159] Alternatively, if Fig.8F As shown, the ninth symbol also includes a ZH signal and / or a ZT signal; the first parameter corresponding to the ninth symbol also indicates the number of zero data of the ZH signal and / or the ZT signal in the ninth symbol.

[0160] It can be understood that, in order to reduce interference to other users, the last symbol of the first signal may have a ZT signal; and / or, in order to reduce the power level of the ZT signal, the last symbol of the first signal may also have a ZH signal. Since both the ZT signal and the ZH signal are zero signals, the first parameter corresponding to the last symbol also needs to indicate the number of zero data of the ZH signal and / or the ZT signal in the last symbol.

[0161] Mode 3: The guard interval configuration mode of the first signal is the third guard interval configuration mode. The first guard interval configuration mode here can be considered as the second scheme of flexibly configuring the CP length mentioned above (ie, flexibly configuring the CP length based on the UW signal).

[0162] In a specific implementation, when the first signal adopts the third protection interval configuration method, there is a possibility that the UW signal in some symbols is a zero signal. At this time, the problem of reduced average symbol power will occur, thereby affecting the transmission power, reducing the symbol demodulation performance, and affecting signal transmission.

[0163] In order to improve the average power of symbols and ensure signal transmission, the power of non-zero signals of certain symbols in the first signal can be increased. Then the key is to determine the symbols that can be powered up and the number of zero data of component signals (such as UW signals) in these symbols. Specifically, the network device can send the configuration information of the first signal to the terminal device, informing the terminal device of the protection interval configuration method adopted by the first signal and the first parameter corresponding to the symbol of the power boost in the first signal. The first parameter here refers to the number of zero data of the component signal in the symbol of power boost. In this way, after the terminal device receives the first signal, it can determine which symbols in the first signal have been powered up and what kind of power boost has been done according to the configuration information of the first signal, so as to demodulate the first signal in a corresponding manner, which not only improves the demodulation performance, but also does not affect channel estimation and equalization. Among them, the first signal received by the terminal device here can be sent by the network device or by other devices, which is not limited here.

[0164] It should be noted that the UW signal included in the first signal may be a head UW signal and / or a tail UW signal. The following is a detailed description taking the third symbol as an example.

[0165] Optionally, the guard interval configuration mode of the first signal is the third guard interval configuration mode, the tenth symbol is any symbol in the first signal, the tenth symbol includes a tail UW signal, and the end position of the tail UW signal of the tenth symbol is the end position of the tenth symbol. Under the third guard interval configuration mode, if the tail UW signal is a zero signal, the first parameter corresponding to the tenth symbol indicates the number of zero data of the tail UW signal in the tenth symbol.

[0166] It can be understood that, Fig. 9A As shown, each symbol in the first signal may have a tail UW signal, and if the tail UW signal of the current symbol is a zero signal, the current symbol may be power-boosted. The reason is that when the tail UW signal of the current symbol is a zero signal, if the current symbol is power-boosted, the tail UW signal is still a zero signal and can still be used as an equivalent CP of the next symbol to avoid interference between symbols.

[0167] It should be noted that for different types of symbols, the length of the tail UW signal can be the same, which is beneficial to reduce the computational burden. For different types of symbols, the length of the tail UW signal can also be different, which is beneficial to ensure that high-importance level symbols are not interfered with. For example, the length of the tail UW signal of the previous data symbol of a high-importance level symbol can be longer than the length of the tail UW signal of the high-importance level symbol. Among them, the high-importance level symbol here can be DMRS, CSI-RS, PDCCH, PUCCH, SRS, SSB, URLLC, etc.

[0168] Further optionally, the tenth symbol further includes a header UW signal, and the starting position of the header UW signal of the tenth symbol is the starting position of the tenth symbol. If the header UW signal is a zero signal, the first parameter corresponding to the tenth symbol also indicates the number of zero data in the header UW signal in the tenth symbol.

[0169] It can be understood that, Fig. 9B As shown in the figure, when the tail UW signal of the previous symbol of the tenth symbol is used as the equivalent CP of the tenth symbol, there may be an error, resulting in inter-symbol interference. In order to reduce this error, a head UW signal can be added to the tenth symbol, and the head UW signal is also a zero signal, so that the equivalent CP can be extended. Therefore, the first parameter corresponding to the tenth symbol should also indicate the number of zero data of the head UW signal in the tenth symbol.

[0170] In a possible implementation, the method further includes: the network device processes the first data corresponding to the symbol based on the first parameter to obtain the second data corresponding to the symbol; the first data is the input data of the DFT, and the second data is the output data of the DFT; the network device processes the second data corresponding to the symbol to obtain the first signal; wherein the symbol includes the second symbol and / or the third symbol; or, the symbol includes one or more of the following symbols: the fourth symbol, the fifth symbol, the sixth symbol, the ninth symbol; or, the symbol includes the tenth symbol. Based on this method, the average power of the symbol can be increased, the demodulation performance can be improved, and the signal transmission can be guaranteed.

[0171] Optionally, the amplitude expansion factor of the first data is Where M is the size of DFT, N 0 is the first parameter corresponding to the symbol.

[0172] It can be understood that the network device can determine the amplitude expansion factor of the first data that needs to be power-enhanced based on the first parameter. For DFT-s-OFDM modulation, the amplitude expansion factor can be used to adjust the above formula (1) to obtain the following formula (2). In this way, the input data of the DFT (i.e., the first data) is processed using formula (2) to obtain the output data of the DFT (i.e., the second data), thereby achieving power enhancement of the symbol; the output data of the DFT after power enhancement is processed to generate the first signal. This also improves the final transmission power of the first signal and ensures signal transmission.

[0173]

[0174] In formula (2), represents the size of DFT (i.e. M mentioned above), represents the input of DFT (i.e. the first data corresponding to the symbol), represents the output of DFT (ie, the second data corresponding to the symbol). The expected energy value of is 1, that is The expected value of is 1. For example, It can be π / 2-BPSK, BPSK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM complex symbols in Section 5.1 of protocol 38.211. It indicates that the first data is amplitude expanded by the amplitude expansion factor.

[0175] Of course, formula (2) can also be transformed into other forms, which are not limited here. For example, formula (2) can be transformed into formula (3):

[0176]

[0177] Formula (2) can also be transformed into formula (4):

[0178]

[0179] For DFT-s-OFDM modulation and time-domain linear convolution SC modulation, it is also possible to achieve power boost by directly multiplying the first data by the corresponding amplitude scale factor (ASF) without adjusting the above formula (1). This also increases the final transmission power of the first signal and ensures signal transmission. In this case, the amplitude scale factor of the first data is Where M is the size of DFT (i.e., the ), N 0 is the first parameter corresponding to the symbol.

[0180] In a possible implementation, the method further includes: the network device sends the first signal to the terminal device. Correspondingly, the terminal device receives the first signal sent by the network device.

[0181] It should be noted that the configuration information can be carried in downlink control information (DCI), in medium access control-control element (MAC-CE), or in radio resource control (RRC), and is not limited here.

[0182] S602: The terminal device demodulates the first signal based on the configuration information.

[0183] In the embodiment of the present application, after receiving the first signal, the terminal device can determine which symbols in the first signal have been power-boosted and how the power-boost has been performed according to the configuration information, so as to demodulate the first signal in a corresponding manner, thereby improving the demodulation performance and not affecting channel estimation and equalization. The first signal received by the terminal device here can be sent by a network device or other device, which is not limited here.

[0184] In a possible implementation, when the terminal device demodulates the first signal based on the configuration information, the specific implementation may be: the terminal device processes the first signal to obtain the second data corresponding to the symbol; the second data is the output data of DFT; the terminal device processes the second data corresponding to the symbol based on the first parameter to obtain the first data corresponding to the symbol; the first data is the input data of DFT; wherein the symbol includes the second symbol and / or the third symbol; or, the symbol includes one or more of the following symbols: the fourth symbol, the fifth symbol, the sixth symbol, the ninth symbol; or, the symbol includes the tenth symbol. Based on this method, the average power of the symbol can be increased, the demodulation performance can be improved, and the signal transmission can be guaranteed.

[0185] Optionally, the amplitude expansion factor of the first data is Where M is the size of DFT, N 0 is the first parameter corresponding to the symbol.

[0186] It can be understood that the first signal is generated according to the configuration information. Accordingly, after receiving the first signal, the terminal device also needs to perform inverse processing according to the configuration information. For DFT-s-OFDM modulation, if the above formula (2) is used to increase the power of the first data, then the terminal device performs M (i.e., the above mentioned ) point IDFT can be corrected to the normalization factor For DFT-s-OFDM modulation and time-domain linear convolution SC modulation, if the power is increased by directly multiplying the first data by the corresponding ASF, it needs to be divided by the ASF after channel equalization, that is, divided by Thereby, the demodulation of the first signal is achieved.

[0187] The following is a specific example to illustrate the improvement of symbol demodulation performance brought about by power increase. As shown in Table 1, the waveform in the simulation parameter table uses the DFT-s-OFDM waveform. The modulation method uses 64QAM. The codec uses low density parity check code (LDPC) with a code rate of 1 / 3. The subcarrier spacing is 3840kHz. The number of DFT points (i.e., DFT size) is 180. The number of IFFT points is 512. The number of sampling points in the CP is 36. PDSCH includes 14 symbols, and DMRS is the second symbol. The channel uses the delay line B channel, and the MDS is 14ns, corresponding to 144 samples; the moving speed is 0.00001km / h. The super CP response solution is that the CP of the DMRS symbol is extended to 144 samples by forward puncturing; the 1st and 3rd symbols have ZH signals and ZT signals, both of which have a length of 108; the length of the ZH signal of the 4th to 13th symbols is 3, and the length of the ZT signal is 108 respectively. The 14th symbol has no ZH signal and ZT signal. Channel estimation and equalization use minimum mean square error (MMSE). The simulation results are shown in Figure 2. Fig.10 As shown, the demodulation block error ratio (BLER) performance is given. It can be seen that by boosting the power of the symbol, the performance can be improved by 0.4 dB at a BLER of 10%.

[0188] Table 1

[0189]

[0190] It can be seen that based on the method described in the present application, by power-boosting the non-zero signals of certain symbols in the first signal, the average power of the symbols is increased, thereby ensuring signal transmission and improving demodulation performance. In a specific process, the network device is required to send configuration information to the terminal device, the configuration information includes a first indication information and a first parameter corresponding to the symbol in the first signal, the first indication information is used to indicate the protection interval configuration method of the first signal, and the first parameter is used to indicate the number of zero data in the component signal, and the component signal is located in the symbol corresponding to the first parameter. After the terminal device receives the configuration information, the symbols for power boosting and the number of zero data of the component signals in these symbols can be clearly identified through the configuration information, so as to demodulate the first signal in a corresponding manner, which not only improves the demodulation performance, but also does not affect channel estimation and equalization.

[0191] Fig.11 FIG. 1 is a flow chart of another configuration method provided in an embodiment of the present application. Fig.11 As shown, the configuration method includes the following steps S1101 to S1103. Fig.11 The execution subject of the method shown can be a terminal device and a network device. Or, Fig.11 The execution subject of the method shown may be a chip in a terminal device and a chip in a network device, which is not limited in the embodiments of the present application. Fig.11 The method is described by taking a terminal device and a network device as an example of the execution subject.

[0192] S1101. A network device sends configuration information to a terminal device, the configuration information including first indication information and a first parameter corresponding to a symbol in a first signal, the first indication information being used to indicate a guard interval configuration mode of the first signal, the first parameter being used to indicate the amount of zero data in a component signal, the component signal being located in the symbol corresponding to the first parameter. Accordingly, the terminal device receives the configuration information from the network device.

[0193] The specific implementation of step S1101 may refer to the specific implementation of step S601 above, which will not be elaborated here.

[0194] S1102. The terminal device generates the first signal based on the configuration information.

[0195] In a possible implementation, when the terminal device generates the first signal based on the configuration information, the specific implementation may be: the terminal device processes the first data corresponding to the symbol based on the first parameter to obtain the second data corresponding to the symbol; the first data is the input data of the DFT, and the second data is the output data of the DFT; the terminal device processes the second data corresponding to the symbol to obtain the first signal; wherein the symbol includes the second symbol and / or the third symbol; or, the symbol includes one or more of the following symbols: the fourth symbol, the fifth symbol, the sixth symbol, the ninth symbol; or, the symbol includes the tenth symbol. Based on this method, the average power of the symbol can be increased, the demodulation performance can be improved, and the signal transmission can be guaranteed.

[0196] Optionally, the amplitude expansion factor of the first data is Where M is the size of the discrete Fourier transform DFT, N 0 is the first parameter corresponding to the symbol.

[0197] It can be understood that the network device can determine the amplitude expansion factor of the first data that needs to be power-boosted based on the first parameter. For DFT-s-OFDM modulation, the amplitude expansion factor can be used to adjust the above formula (1) to obtain the following formula (2). In this way, the input data of the DFT (i.e., the first data) is processed using formula (2) to obtain the output data of the DFT (i.e., the second data), thereby achieving power boost for the symbol; the output data of the DFT after power boost is processed to generate the first signal. This also improves the final transmission power of the first signal and ensures signal transmission. Of course, formula (2) can also be transformed in other ways, which are not limited here. For example, formula (2) can be transformed into formula (3), formula (4), etc.

[0198] For DFT-s-OFDM modulation and time-domain linear convolution SC modulation, it is also possible to achieve power boost by directly multiplying the first data by the corresponding amplitude scale factor (ASF) without adjusting the above formula (1). This also increases the final transmission power of the first signal and ensures signal transmission. In this case, the amplitude scale factor of the first data is Where M is the size of DFT (i.e., the ), N 0 is the first parameter corresponding to the symbol.

[0199] S1103: The terminal device sends the first signal to the network device. Correspondingly, the network device receives the first signal from the terminal device.

[0200] In a possible implementation, the method further includes: the network device processes the first signal to obtain second data corresponding to the symbol; the second data is the output data of DFT; the network device processes the second data corresponding to the symbol based on the first parameter to obtain the first data corresponding to the symbol; the first data is the input data of DFT; wherein the symbol includes the second symbol and / or the third symbol; or, the symbol includes one or more of the following symbols: the fourth symbol, the fifth symbol, the sixth symbol, the ninth symbol; or, the symbol includes the tenth symbol. Based on this method, the average power of the symbol can be increased, the demodulation performance can be improved, and the signal transmission can be guaranteed.

[0201] Optionally, the amplitude expansion factor of the first data is Where M is the size of DFT, N 0 is the first parameter corresponding to the symbol.

[0202] It can be understood that the first signal is generated according to the configuration information. Accordingly, after the network device receives the first signal from the terminal device, it also needs to perform inverse processing according to the configuration information. For DFT-s-OFDM modulation, if the above formula (2) is used to increase the power of the first data, then the terminal device is performing M (i.e., the above mentioned ) point IDFT can be corrected to the normalization factor For DFT-s-OFDM modulation and time-domain linear convolution SC modulation, if the power is increased by directly multiplying the first data by the corresponding ASF, it needs to be divided by the ASF after channel equalization, that is, divided by Thereby, the demodulation of the first signal is achieved.

[0203] It should be noted that after the terminal device generates the first signal, it can also send the first signal to other devices, which is not limited here.

[0204] It can be seen that based on the method described in the present application, by power-boosting the non-zero signals of certain symbols in the first signal, the average power of the symbols is increased, thereby ensuring signal transmission and improving demodulation performance. In a specific process, the network device needs to send configuration information to the terminal device, and the configuration information includes a first indication information and a first parameter corresponding to the symbol in the first signal, the first indication information is used to indicate the protection interval configuration method of the first signal, and the first parameter is used to indicate the number of zero data in the component signal, and the component signal is located in the symbol corresponding to the first parameter. After the terminal device receives the configuration information, it can clearly determine the symbols for power boosting and the number of zero data of the component signals in these symbols according to the configuration information, so as to generate the first signal in a corresponding manner and send it to the network device. Correspondingly, the network device can also demodulate in a corresponding manner according to the configuration information, which not only improves the demodulation performance, but also does not affect channel estimation and equalization.

[0205] See also Fig.12 , Fig.12 A schematic structural diagram of a communication device 1200 according to an embodiment of the present application is shown. Fig.12 The communication device shown may be a terminal device or a network device, or may be a device in a terminal device or a network device, or may be a device that can be used in conjunction with a terminal device or a network device. Fig.12 As shown, the communication device 1200 may include a communication unit 1201 and a processing unit 1202. The processing unit 1202 is used for data processing. The communication unit 1201 is used for communication. Optionally, the communication unit 1201 is integrated with a receiving unit and a sending unit. The communication unit 1201 may also be referred to as a transceiver unit. Alternatively, the communication unit 1201 may also be split into a receiving unit and a sending unit.

[0206] In one implementation, the communication device 1200 may be a terminal device, or a device in a terminal device, or a device that can be used in conjunction with a terminal device, wherein:

[0207] The communication unit 1201 is used to receive configuration information from a network device; the configuration information includes first indication information and a first parameter corresponding to a symbol in a first signal, the first indication information is used to indicate a guard interval configuration mode of the first signal, and the first parameter is used to indicate the amount of zero data in a component signal, and the component signal is located in the symbol corresponding to the first parameter;

[0208] The processing unit 1202 is configured to demodulate the first signal based on the configuration information, or generate the first signal based on the configuration information.

[0209] In a possible implementation, the protection interval configuration mode of the first signal is a first protection interval configuration mode, the first signal includes a first symbol and a second symbol, the first symbol is the previous symbol of the second symbol, and the second symbol includes a ZH signal and / or a ZT signal; under the first protection interval configuration mode, the first parameter corresponding to the second symbol indicates the number of zero data of the ZH signal and / or the ZT signal in the second symbol.

[0210] In one possible implementation, the first signal also includes a third symbol, which is the previous symbol of the first symbol, and the third symbol includes a ZH signal, and the tail signal in the third symbol is replaced by the component signal in the first symbol; under the first protection interval configuration mode, the first parameter corresponding to the third symbol indicates the number of zero data of the ZH signal in the third symbol.

[0211] In a possible implementation, the first symbol is any one of the following symbols: DMRS, CSI-RS, PDCCH, PUCCH, SRS, SSB, URLLC.

[0212] In a possible implementation, the protection interval configuration mode of the first signal is the second protection interval configuration mode, each symbol in the first signal includes a first copy block and a second copy block; the first signal includes a fourth symbol and a fifth symbol, the fourth symbol is the previous symbol of the fifth symbol; the fourth symbol is the other symbol in the first signal except the first symbol, and the fifth symbol is the other symbol in the first signal except the last symbol; the end position of the first copy block of the fourth symbol is the CP interception point of the fourth symbol, and the end position of the second copy block of the fourth symbol is the end position of the fourth symbol; the end position of the first copy block of the fifth symbol is the CP interception point of the fifth symbol, and the end position of the second copy block of the fifth symbol is the end position of the fifth symbol; the data of the second copy block of the fourth symbol is the same as the data of the first copy block of the fifth symbol; under the second protection interval configuration mode, if the first copy block of the fourth symbol is a zero signal and the second copy block of the fifth symbol is a zero signal, the first parameter corresponding to the fourth symbol indicates the number of zero data of the first copy block and the second copy block in the fourth symbol, and the first parameter corresponding to the fifth symbol indicates the number of zero data of the first copy block and the second copy block in the fifth symbol.

[0213] In one possible implementation, the first signal includes a sixth symbol and a seventh symbol, the sixth symbol being the previous symbol of the seventh symbol; the sixth symbol being the first symbol of the first signal; the end position of the first copy block of the sixth symbol being the CP interception point of the sixth symbol, and the end position of the second copy block of the sixth symbol being the end position of the sixth symbol; the end position of the first copy block of the seventh symbol being the CP interception point of the seventh symbol, and the end position of the second copy block of the seventh symbol being the end position of the seventh symbol; the data of the second copy block of the sixth symbol being the same as the data of the first copy block of the seventh symbol; under the second protection interval configuration mode, if the second copy block of the sixth symbol is a zero signal, the first parameter corresponding to the sixth symbol indicates the number of zero data of the first copy block and the second copy block in the sixth symbol.

[0214] In a possible implementation manner, the sixth symbol further includes a ZH signal; and the first parameter corresponding to the sixth symbol further indicates the amount of zero data of the ZH signal in the sixth symbol.

[0215] In a possible implementation, the first signal includes an eighth symbol and a ninth symbol, the eighth symbol being the previous symbol of the ninth symbol; the ninth symbol being the last symbol of the first signal; the end position of the first copy block of the eighth symbol being the CP interception point of the eighth symbol, and the end position of the second copy block of the eighth symbol being the end position of the eighth symbol; the end position of the first copy block of the ninth symbol being the CP interception point of the ninth symbol, and the end position of the second copy block of the ninth symbol being the end position of the ninth symbol; the data of the second copy block of the eighth symbol being the same as the data of the first copy block of the ninth symbol; under the second protection interval configuration mode, if the first copy block of the ninth symbol is a zero signal, the first parameter corresponding to the ninth symbol indicates the number of zero data in the first copy block and the second copy block in the ninth symbol.

[0216] In a possible implementation manner, the ninth symbol further includes a ZH signal and / or a ZT signal; and the first parameter corresponding to the ninth symbol further indicates the amount of zero data of the ZH signal and / or the ZT signal in the ninth symbol.

[0217] In one possible implementation, the protection interval configuration mode of the first signal is the third protection interval configuration mode, the tenth symbol is any symbol in the first signal, the tenth symbol includes a tail UW signal, and the end position of the tail UW signal of the tenth symbol is the end position of the tenth symbol; under the third protection interval configuration mode, if the tail UW signal is a zero signal, the first parameter corresponding to the tenth symbol indicates the number of zero data in the tail UW signal in the tenth symbol.

[0218] In one possible implementation, the tenth symbol also includes a header UW signal, and the starting position of the header UW signal of the tenth symbol is the starting position of the tenth symbol; if the header UW signal is a zero signal, the first parameter corresponding to the tenth symbol also indicates the number of zero data in the header UW signal in the tenth symbol.

[0219] In a possible implementation, the processing unit 1202, when generating the first signal based on the configuration information, is specifically used to: process the first data corresponding to the symbol based on the first parameter to obtain the second data corresponding to the symbol; the first data is the input data of the discrete Fourier transform DFT, and the second data is the output data of the DFT; process the second data corresponding to the symbol to obtain the first signal; wherein the symbol includes the second symbol and / or the third symbol; or, the symbol includes one or more of the following symbols: a fourth symbol, a fifth symbol, a sixth symbol, a ninth symbol; or, the symbol includes the tenth symbol.

[0220] In one possible implementation, the processing unit 1202, when demodulating the first signal based on the configuration information, is specifically used to: process the first signal to obtain second data corresponding to the symbol; the second data is the output data of DFT; process the second data corresponding to the symbol based on the first parameter to obtain first data corresponding to the symbol; the first data is the input data of DFT; wherein the symbol includes the second symbol and / or the third symbol; or, the symbol includes one or more of the following symbols: a fourth symbol, a fifth symbol, a sixth symbol, a ninth symbol; or, the symbol includes the tenth symbol.

[0221] In a possible implementation, the amplitude expansion factor of the first data is Where M is the size of DFT, N 0 is the first parameter corresponding to the symbol.

[0222] In one implementation, the communication device 1200 may be a network device, or a device in a network device, or a device that can be used in conjunction with a network device, wherein:

[0223] A communication unit 1201 is configured to send configuration information to a terminal device; the configuration information includes first indication information and a first parameter corresponding to a symbol in a first signal, the first indication information is used to indicate a guard interval configuration mode of the first signal, and the first parameter is used to indicate the amount of zero data in a component signal, and the component signal is located in the symbol corresponding to the first parameter;

[0224] The communication unit 1201 is further configured to receive a first signal from a terminal device, where the first signal is generated based on the configuration information.

[0225] In a possible implementation, the protection interval configuration mode of the first signal is a first protection interval configuration mode, the first signal includes a first symbol and a second symbol, the first symbol is the previous symbol of the second symbol, and the second symbol includes a ZH signal and / or a ZT signal; under the first protection interval configuration mode, the first parameter corresponding to the second symbol indicates the number of zero data of the ZH signal and / or the ZT signal in the second symbol.

[0226] In one possible implementation, the first signal also includes a third symbol, which is the previous symbol of the first symbol, and the third symbol includes a ZH signal, and the tail signal in the third symbol is replaced by the component signal in the first symbol; under the first protection interval configuration mode, the first parameter corresponding to the third symbol indicates the number of zero data of the ZH signal in the third symbol.

[0227] In a possible implementation, the first symbol is any one of the following symbols: DMRS, CSI-RS, PDCCH, PUCCH, SRS, SSB, URLLC.

[0228] In a possible implementation, the protection interval configuration mode of the first signal is the second protection interval configuration mode, each symbol in the first signal includes a first copy block and a second copy block; the first signal includes a fourth symbol and a fifth symbol, the fourth symbol is the previous symbol of the fifth symbol; the fourth symbol is the other symbol in the first signal except the first symbol, and the fifth symbol is the other symbol in the first signal except the last symbol; the end position of the first copy block of the fourth symbol is the CP interception point of the fourth symbol, and the end position of the second copy block of the fourth symbol is the end position of the fourth symbol; the end position of the first copy block of the fifth symbol is the CP interception point of the fifth symbol, and the end position of the second copy block of the fifth symbol is the end position of the fifth symbol; the data of the second copy block of the fourth symbol is the same as the data of the first copy block of the fifth symbol; under the second protection interval configuration mode, if the first copy block of the fourth symbol is a zero signal and the second copy block of the fifth symbol is a zero signal, the first parameter corresponding to the fourth symbol indicates the number of zero data of the first copy block and the second copy block in the fourth symbol, and the first parameter corresponding to the fifth symbol indicates the number of zero data of the first copy block and the second copy block in the fifth symbol.

[0229] In one possible implementation, the first signal includes a sixth symbol and a seventh symbol, the sixth symbol being the previous symbol of the seventh symbol; the sixth symbol being the first symbol of the first signal; the end position of the first copy block of the sixth symbol being the CP interception point of the sixth symbol, and the end position of the second copy block of the sixth symbol being the end position of the sixth symbol; the end position of the first copy block of the seventh symbol being the CP interception point of the seventh symbol, and the end position of the second copy block of the seventh symbol being the end position of the seventh symbol; the data of the second copy block of the sixth symbol being the same as the data of the first copy block of the seventh symbol; under the second protection interval configuration mode, if the second copy block of the sixth symbol is a zero signal, the first parameter corresponding to the sixth symbol indicates the number of zero data of the first copy block and the second copy block in the sixth symbol.

[0230] In a possible implementation manner, the sixth symbol further includes a ZH signal; and the first parameter corresponding to the sixth symbol further indicates the amount of zero data of the ZH signal in the sixth symbol.

[0231] In a possible implementation, the first signal includes an eighth symbol and a ninth symbol, the eighth symbol being the previous symbol of the ninth symbol; the ninth symbol being the last symbol of the first signal; the end position of the first copy block of the eighth symbol being the CP interception point of the eighth symbol, and the end position of the second copy block of the eighth symbol being the end position of the eighth symbol; the end position of the first copy block of the ninth symbol being the CP interception point of the ninth symbol, and the end position of the second copy block of the ninth symbol being the end position of the ninth symbol; the data of the second copy block of the eighth symbol being the same as the data of the first copy block of the ninth symbol; under the second protection interval configuration mode, if the first copy block of the ninth symbol is a zero signal, the first parameter corresponding to the ninth symbol indicates the number of zero data in the first copy block and the second copy block in the ninth symbol.

[0232] In a possible implementation manner, the ninth symbol further includes a ZH signal and / or a ZT signal; and the first parameter corresponding to the ninth symbol further indicates the amount of zero data of the ZH signal and / or the ZT signal in the ninth symbol.

[0233] In one possible implementation, the protection interval configuration mode of the first signal is the third protection interval configuration mode, the tenth symbol is any symbol in the first signal, the tenth symbol includes a tail UW signal, and the end position of the tail UW signal of the tenth symbol is the end position of the tenth symbol; under the third protection interval configuration mode, if the tail UW signal is a zero signal, the first parameter corresponding to the tenth symbol indicates the number of zero data in the tail UW signal in the tenth symbol.

[0234] In one possible implementation, the tenth symbol also includes a header UW signal, and the starting position of the header UW signal of the tenth symbol is the starting position of the tenth symbol; if the header UW signal is a zero signal, the first parameter corresponding to the tenth symbol also indicates the number of zero data in the header UW signal in the tenth symbol.

[0235] In one possible implementation, the processing unit 1202 is used to: process the first signal to obtain second data corresponding to the symbol; the second data is output data of discrete Fourier transform DFT; process the second data corresponding to the symbol based on the first parameter to obtain first data corresponding to the symbol; the first data is input data of DFT; wherein the symbol includes the second symbol and / or the third symbol; or, the symbol includes one or more of the following symbols: a fourth symbol, a fifth symbol, a sixth symbol, a ninth symbol; or, the symbol includes the tenth symbol.

[0236] In a possible implementation, the amplitude expansion factor of the first data is Where M is the size of DFT, N 0 is the first parameter corresponding to the symbol.

[0237] Fig.13 A schematic diagram of the structure of another communication device is given. The communication device 1300 may be a terminal device or a network device in the above method embodiment, or may be a chip, a chip system, or a processor that supports the terminal device or the network device to implement the above method. The communication device may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

[0238] The communication device 1300 may include one or more processors 1301. The processor 1301 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal, a terminal chip, a DU or a CU, etc.), execute a software program, and process the data of the software program.

[0239] Optionally, the communication device 1300 may include one or more memories 1302, on which instructions 1304 may be stored, and the instructions may be executed on the processor 1301, so that the communication device 1300 performs the method described in the above method embodiment. Optionally, data may also be stored in the memory 1302. The processor 1301 and the memory 1302 may be provided separately or integrated together.

[0240] Optionally, the communication device 1300 may further include a transceiver 1305 and an antenna 1306. The transceiver 1305 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing a transceiver function. The transceiver 1305 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function. Among them, Fig.12 The processing unit 1202 shown may be a processor 1301. The communication unit 1201 may be a transceiver 1305.

[0241] In another possible design, the processor 1301 may include a transceiver for implementing the receiving and sending functions. For example, the transceiver may be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated. The above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.

[0242] In another possible design, optionally, the processor 1301 may store an instruction 1303, and the instruction 1303 runs on the processor 1301, so that the communication device 1300 can perform the method described in the above method embodiment. The instruction 1303 may be solidified in the processor 1301, in which case the processor 1301 may be implemented by hardware.

[0243] In another possible design, the communication device 1300 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments. The processor and transceiver described in the embodiments of the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channelmetal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0244] The communication device described in the above embodiments may be a terminal device or a network device, but the scope of the communication device described in the embodiments of the present application is not limited thereto, and the structure of the communication device may not be limited thereto. Fig.13 The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0245] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0246] (2) having a set of one or more ICs, and optionally, the IC set may also include a storage component for storing data and instructions;

[0247] (3) ASIC, such as modem (MSM);

[0248] (4) Modules that can be embedded in other devices;

[0249] (5) Receivers, terminals, smart terminals, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0250] (6)Others

[0251] For the case where the communication device may be a chip or a chip system, see Fig.14 Schematic diagram of the chip structure shown. Fig.14 The chip 1400 shown includes a processor 1401 and an interface 1402. Optionally, it may also include a memory 1403. The number of the processor 1401 may be one or more, and the number of the interface 1402 may be multiple.

[0252] For the case where the chip is used to implement a terminal device or a network device in the embodiment of the present application:

[0253] The interface 1402 is used to receive or output signals;

[0254] The processor 1401 is used to execute data processing operations of the terminal device or the network device.

[0255] It is understandable that some optional features in the embodiments of the present application may be implemented independently in certain scenarios without relying on other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects, or may be combined with other features according to needs in certain scenarios. Accordingly, the communication device provided in the embodiments of the present application may also implement these features or functions accordingly, which will not be described in detail here.

[0256] It should be understood that the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above processor can be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

[0257] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0258] The present application also provides a computer-readable medium, in which a computer program or instruction is stored. When the computer program or instruction is executed by a communication device, the functions of any of the above method embodiments are implemented.

[0259] The present application also provides a computer program product including instructions, and when a computer reads and executes the computer program product, the computer implements the functions of any of the above method embodiments.

[0260] The present application provides a communication system, which includes a terminal device and a network device; wherein the terminal device is used to execute the method executed by the terminal device in the above embodiment, and the network device is used to execute the method executed by the network device in the above embodiment.

[0261] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0262] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A configuration method, characterized in that: The method comprises: receiving configuration information from a network device; the configuration information comprising first indication information and a first parameter corresponding to a symbol in a first signal, the first indication information being used to indicate a guard interval configuration mode of the first signal, the first parameter being used to indicate the amount of zero data in a component signal, the component signal being located in the symbol corresponding to the first parameter; The first signal is demodulated based on the configuration information, or the first signal is generated based on the configuration information.

2. The method according to claim 1, characterized in that The guard interval configuration mode of the first signal is a first guard interval configuration mode, the first signal includes a first symbol and a second symbol, the first symbol is a symbol preceding the second symbol, and the second symbol includes a zero beginning ZH signal and / or a zero tail ZT signal; In the first guard interval configuration mode, the first parameter corresponding to the second symbol indicates the amount of zero data of the ZH signal and / or the ZT signal in the second symbol.

3. The method according to claim 2, characterized in that The first signal further includes a third symbol, the third symbol is a symbol preceding the first symbol, the third symbol includes a ZH signal, and a tail signal in the third symbol is replaced by a component signal in the first symbol; In the first guard interval configuration mode, the first parameter corresponding to the third symbol indicates the amount of zero data of the ZH signal in the third symbol.

4. The method according to claim 2 or 3, characterized in that: The first symbol is any one of the following symbols: a demodulation reference signal DMRS, a channel state information reference signal CSI-RS, a physical downlink control channel PDCCH, a physical uplink control channel PUCCH, a channel sounding reference signal SRS, a synchronization signal block SSB, and an ultra-reliable low-latency communication URLLC.

5. The method according to claim 1, characterized in that The guard interval configuration mode of the first signal is the second guard interval configuration mode, each symbol in the first signal includes a first replica block and a second replica block; the first signal includes a fourth symbol and a fifth symbol, the fourth symbol is a symbol preceding the fifth symbol; the fourth symbol is a symbol other than the first symbol in the first signal, and the fifth symbol is a symbol other than the last symbol in the first signal; The end position of the first copy block of the fourth symbol is the cyclic prefix CP interception point of the fourth symbol, and the end position of the second copy block of the fourth symbol is the end position of the fourth symbol; the end position of the first copy block of the fifth symbol is the CP interception point of the fifth symbol, and the end position of the second copy block of the fifth symbol is the end position of the fifth symbol; the data of the second copy block of the fourth symbol is the same as the data of the first copy block of the fifth symbol; Under the second protection interval configuration mode, if the first copy block of the fourth symbol is a zero signal and the second copy block of the fifth symbol is a zero signal, then the first parameter corresponding to the fourth symbol indicates the number of zero data of the first copy block and the second copy block in the fourth symbol, and the first parameter corresponding to the fifth symbol indicates the number of zero data of the first copy block and the second copy block in the fifth symbol.

6. The method according to claim 5, characterized in that The first signal includes a sixth symbol and a seventh symbol, the sixth symbol is a symbol preceding the seventh symbol; the sixth symbol is a first symbol of the first signal; The end position of the first copy block of the sixth symbol is the CP interception point of the sixth symbol, and the end position of the second copy block of the sixth symbol is the end position of the sixth symbol; the end position of the first copy block of the seventh symbol is the CP interception point of the seventh symbol, and the end position of the second copy block of the seventh symbol is the end position of the seventh symbol; data of the second copy block of the sixth symbol is the same as data of the first copy block of the seventh symbol; In the second guard interval configuration mode, if the second replica block of the sixth symbol is a zero signal, the first parameter corresponding to the sixth symbol indicates the amount of zero data of the first replica block and the second replica block in the sixth symbol.

7. The method according to claim 6, characterized in that The sixth symbol also includes a zero ZH signal; The first parameter corresponding to the sixth symbol further indicates the amount of zero data of the ZH signal in the sixth symbol.

8. The method according to any one of claims 5 to 7, characterized in that: The first signal includes an eighth symbol and a ninth symbol, the eighth symbol is a symbol preceding the ninth symbol; the ninth symbol is the last symbol of the first signal; The end position of the first copy block of the eighth symbol is the CP interception point of the eighth symbol, and the end position of the second copy block of the eighth symbol is the end position of the eighth symbol; the end position of the first copy block of the ninth symbol is the CP interception point of the ninth symbol, and the end position of the second copy block of the ninth symbol is the end position of the ninth symbol; data of the second copy block of the eighth symbol is the same as data of the first copy block of the ninth symbol; In the second guard interval configuration mode, if the first replica block of the ninth symbol is a zero signal, the first parameter corresponding to the ninth symbol indicates the amount of zero data of the first replica block and the second replica block in the ninth symbol.

9. The method according to claim 8, characterized in that The ninth symbol further includes a zero head ZH signal and / or a zero tail ZT signal; The first parameter corresponding to the ninth symbol further indicates the amount of zero data of the ZH signal and / or the ZT signal in the ninth symbol.

10. The method according to claim 1, characterized in that The guard interval configuration mode of the first signal is the third guard interval configuration mode, the tenth symbol is any symbol in the first signal, the tenth symbol includes a tail unique word UW signal, and the end position of the tail UW signal of the tenth symbol is the end position of the tenth symbol; In the third guard interval configuration mode, if the tail UW signal is a zero signal, the first parameter corresponding to the tenth symbol indicates the amount of zero data of the tail UW signal in the tenth symbol.

11. The method according to claim 10, characterized in that The tenth symbol further includes a header UW signal, and the starting position of the header UW signal of the tenth symbol is the starting position of the tenth symbol; If the header UW signal is a zero signal, the first parameter corresponding to the tenth symbol further indicates the amount of zero data of the header UW signal in the tenth symbol.

12. The method according to any one of claims 2 to 11, characterized in that: The generating the first signal based on the configuration information comprises: Processing first data corresponding to a symbol based on the first parameter to obtain second data corresponding to the symbol; the first data is input data of a discrete Fourier transform DFT, and the second data is output data of the DFT; Processing second data corresponding to the symbol to obtain the first signal; wherein the symbol includes the second symbol and / or the third symbol; or, The symbol includes one or more of the following symbols: the fourth symbol, the fifth symbol, the sixth symbol, the ninth symbol; or, The symbols include the tenth symbol.

13. The method according to any one of claims 2 to 11, characterized in that: The demodulating the first signal based on the configuration information includes: Processing the first signal to obtain second data corresponding to the symbol; the second data is output data of discrete Fourier transform DFT; Processing the second data corresponding to the symbol based on the first parameter to obtain the first data corresponding to the symbol; the first data is the input data of the DFT; wherein the symbol includes the second symbol and / or the third symbol; or, The symbol includes one or more of the following symbols: the fourth symbol, the fifth symbol, the sixth symbol, the ninth symbol; or, The symbols include the tenth symbol.

14. The method according to claim 12, characterized in that The amplitude expansion factor of the first data is: Among them, the M is the size of discrete Fourier transform DFT, and the N0 is the first parameter corresponding to the symbol.

15. A configuration method, characterized in that: The method comprises: Sending configuration information to a terminal device; the configuration information includes first indication information and a first parameter corresponding to a symbol in a first signal, the first indication information is used to indicate a guard interval configuration mode of the first signal, the first parameter is used to indicate the amount of zero data in a component signal, and the component signal is located in the symbol corresponding to the first parameter; The first signal is received from the terminal device, where the first signal is generated based on the configuration information.

16. The method according to claim 15, characterized in that The guard interval configuration mode of the first signal is a first guard interval configuration mode, the first signal includes a first symbol and a second symbol, the first symbol is a symbol preceding the second symbol, and the second symbol includes a zero beginning ZH signal and / or a zero tail ZT signal; In the first guard interval configuration mode, the first parameter corresponding to the second symbol indicates the amount of zero data of the ZH signal and / or the ZT signal in the second symbol.

17. The method according to claim 16, characterized in that The first signal further includes a third symbol, the third symbol is a symbol preceding the first symbol, the third symbol includes a ZH signal, and a tail signal in the third symbol is replaced by a component signal in the first symbol; In the first guard interval configuration mode, the first parameter corresponding to the third symbol indicates the amount of zero data of the ZH signal in the third symbol.

18. The method according to claim 16 or 17, characterized in that The first symbol is any one of the following symbols: a demodulation reference signal DMRS, a channel state information reference signal CSI-RS, a physical downlink control channel PDCCH, a physical uplink control channel PUCCH, a channel sounding reference signal SRS, a synchronization signal block SSB, and an ultra-reliable low-latency communication URLLC.

19. The method according to claim 15, characterized in that The guard interval configuration mode of the first signal is the second guard interval configuration mode, each symbol in the first signal includes a first replica block and a second replica block; the first signal includes a fourth symbol and a fifth symbol, the fourth symbol is a symbol preceding the fifth symbol; the fourth symbol is a symbol other than the first symbol in the first signal, and the fifth symbol is a symbol other than the last symbol in the first signal; The end position of the first copy block of the fourth symbol is the cyclic prefix CP interception point of the fourth symbol, and the end position of the second copy block of the fourth symbol is the end position of the fourth symbol; the end position of the first copy block of the fifth symbol is the CP interception point of the fifth symbol, and the end position of the second copy block of the fifth symbol is the end position of the fifth symbol; the data of the second copy block of the fourth symbol is the same as the data of the first copy block of the fifth symbol; Under the second protection interval configuration mode, if the first copy block of the fourth symbol is a zero signal and the second copy block of the fifth symbol is a zero signal, then the first parameter corresponding to the fourth symbol indicates the number of zero data of the first copy block and the second copy block in the fourth symbol, and the first parameter corresponding to the fifth symbol indicates the number of zero data of the first copy block and the second copy block in the fifth symbol.

20. The method according to claim 19, characterized in that The first signal includes a sixth symbol and a seventh symbol, the sixth symbol is a symbol preceding the seventh symbol; the sixth symbol is a first symbol of the first signal; The end position of the first copy block of the sixth symbol is the CP interception point of the sixth symbol, and the end position of the second copy block of the sixth symbol is the end position of the sixth symbol; the end position of the first copy block of the seventh symbol is the CP interception point of the seventh symbol, and the end position of the second copy block of the seventh symbol is the end position of the seventh symbol; data of the second copy block of the sixth symbol is the same as data of the first copy block of the seventh symbol; In the second guard interval configuration mode, if the second replica block of the sixth symbol is a zero signal, the first parameter corresponding to the sixth symbol indicates the amount of zero data of the first replica block and the second replica block in the sixth symbol.

21. The method according to claim 20, characterized in that The sixth symbol also includes a zero ZH signal; The first parameter corresponding to the sixth symbol further indicates the amount of zero data of the ZH signal in the sixth symbol.

22. The method according to any one of claims 19 to 21, characterized in that The first signal includes an eighth symbol and a ninth symbol, the eighth symbol is a symbol preceding the ninth symbol; the ninth symbol is the last symbol of the first signal; The end position of the first copy block of the eighth symbol is the CP interception point of the eighth symbol, and the end position of the second copy block of the eighth symbol is the end position of the eighth symbol; the end position of the first copy block of the ninth symbol is the CP interception point of the ninth symbol, and the end position of the second copy block of the ninth symbol is the end position of the ninth symbol; data of the second copy block of the eighth symbol is the same as data of the first copy block of the ninth symbol; In the second guard interval configuration mode, if the first replica block of the ninth symbol is a zero signal, the first parameter corresponding to the ninth symbol indicates the amount of zero data of the first replica block and the second replica block in the ninth symbol.

23. The method according to claim 22, characterized in that The ninth symbol further includes a zero head ZH signal and / or a zero tail ZT signal; The first parameter corresponding to the ninth symbol further indicates the amount of zero data of the ZH signal and / or the ZT signal in the ninth symbol.

24. The method according to claim 15, characterized in that The guard interval configuration mode of the first signal is the third guard interval configuration mode, the tenth symbol is any symbol in the first signal, the tenth symbol includes a tail unique word UW signal, and the end position of the tail UW signal of the tenth symbol is the end position of the tenth symbol; In the third guard interval configuration mode, if the tail UW signal is a zero signal, the first parameter corresponding to the tenth symbol indicates the amount of zero data of the tail UW signal in the tenth symbol.

25. The method according to claim 24, characterized in that The tenth symbol further includes a header UW signal, and the starting position of the header UW signal of the tenth symbol is the starting position of the tenth symbol; If the header UW signal is a zero signal, the first parameter corresponding to the tenth symbol further indicates the amount of zero data of the header UW signal in the tenth symbol.

26. The method according to any one of claims 16 to 25, characterized in that The method further comprises: Processing the first signal to obtain second data corresponding to the symbol; the second data is output data of discrete Fourier transform DFT; Processing the second data corresponding to the symbol based on the first parameter to obtain the first data corresponding to the symbol; the first data is the input data of the DFT; wherein the symbol includes the second symbol and / or the third symbol; or, The symbol includes one or more of the following symbols: the fourth symbol, the fifth symbol, the sixth symbol, the ninth symbol; or, The symbols include the tenth symbol.

27. The method according to claim 26, characterized in that The amplitude expansion factor of the first data is: Among them, the M is the size of discrete Fourier transform DFT, and the N0 is the first parameter corresponding to the symbol.

28. A communication system, characterized in that: It comprises a terminal device and a network device; wherein the terminal device is used to execute the method as described in any one of claims 1-14, and the network device is used to execute the method as described in any one of claims 15-27.

29. A communication device, characterized in that: The method comprises a unit for executing the method according to any one of claims 1 to 14, or comprises a unit for executing the method according to any one of claims 15 to 27.

30. A communication device, characterized in that: The method comprises a processor and a memory, wherein the processor and the memory are coupled, and the processor is used to implement the method according to any one of claims 1 to 14, or the processor is used to implement the method according to any one of claims 15 to 27.

31. A chip, characterized in that: It comprises a processor and an interface, wherein the processor and the interface are coupled; the interface is used to receive or output signals, and the processor is used to execute code instructions so that the method described in any one of claims 1 to 14 is executed, or so that the method described in any one of claims 15 to 27 is executed.

32. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which, when called by the computer, enable the computer to execute the method described in any one of claims 1 to 14, or enable the computer to execute the method described in any one of claims 15 to 27.

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