Information transmission method and device

Abstract

The embodiment of the invention discloses an information transmission method and device, and belongs to the technical field of communication, and the information transmission method comprises the steps that a communication device sends or receives first information; wherein one basic resource unit of the first information comprises a first part and a second part, the time length of the first part is the same as that of a CP part of an OFDM symbol, and the time length of the second part is the same as that of the OFDM symbol which does not comprise the CP part; or, the time length of the second part is an integral multiple of the time length of the minimum resource unit, and the part, except the second part, of the basic resource unit is the first part; or the time length of one basic resource unit of the first information is an integral multiple of the time length of the minimum resource unit.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a method and device for transmitting information. Background Art

[0002] The New Radio (NR) system uses an Orthogonal Frequency Division Multiplexing (OFDM) waveform, so the resource unit of the signal mapping is implemented based on OFDM symbols. In the Ambient IoT (AIOT) system, the control node provides services for AIOT devices. Among them, the control node can be a base station, a core network or a terminal. The terminal is a UE or other terminal device, such as a reader. The AIOT device can be: a device using backscatter communication, or the target terminal of the communication is a passive device or a device with a power lower than the power of the Narrow Band-Internet of Things (NB-IoT). The signal of the AIOT system may use a non-OFDM waveform, such as a binary On-Off Keying (OOK) waveform. Therefore, how to determine the basic resource unit of the AIOT system to realize the transmission of information is a technical problem that needs to be solved in the relevant technology. Summary of the invention

[0003] The embodiments of the present application provide a method and device for transmitting information, which can solve the problem that information cannot be transmitted due to the inability to determine the basic resource unit of the AIOT system.

[0004] In a first aspect, a method for transmitting information is provided, comprising: a communication device sending or receiving first information; wherein a basic resource unit of the first information comprises a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part of the basic resource unit other than the second part is the first part; or, the time length of a basic resource unit of the first information is an integer multiple of the time length of the minimum resource unit.

[0005] According to a second aspect, a device for transmitting information is provided, comprising: a transmission module for sending or receiving first information; wherein a basic resource unit of the first information comprises a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part of the basic resource unit other than the second part is the first part; or, the time length of a basic resource unit of the first information is an integer multiple of the time length of the minimum resource unit.

[0006] According to a third aspect, a communication device is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0007] In a fourth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the communication interface is used to send or receive first information; wherein a basic resource unit of the first information comprises a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part of the basic resource unit other than the second part is the first part; or, the time length of a basic resource unit of the first information is an integer multiple of the time length of the minimum resource unit.

[0008] In a fifth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0009] In a sixth aspect, a wireless communication system is provided, including: a terminal and a network side device, wherein the terminal or the network side device can be used to execute the steps of the method described in the first aspect.

[0010] In a seventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.

[0011] In an eighth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect.

[0012] The embodiment of the present application determines the basic resource unit of the first information so that the transmitting end and the receiving end have consistent understanding of the basic resource unit, thereby facilitating the effective transmission of the first information. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

[0014] Figure 2 is a schematic flow chart of a method for transmitting information according to an embodiment of the present application;

[0015] Figure 3 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0016] Figure 4 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0017] Figure 5 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0018] Figure 6 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0019] Figure 7 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0020] Figure 8 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0021] Fig. 9 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0022] Fig.10 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0023] Fig.11 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0024] Fig.12 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0025] Fig.13 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0026] Fig.14is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0027] Fig.15 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0028] Fig.16 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0029] Fig.17 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0030] Fig.18 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0031] Fig.19 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0032] Fig. 20 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0033] Fig.21 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0034] Fig. 22 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0035] Fig.23 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0036] Fig.24 is a specific application schematic diagram of the information transmission method according to an embodiment of the present application;

[0037] Fig.25 is a schematic diagram of the structure of an information transmission device according to an embodiment of the present application;

[0038] Fig.26 is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

[0039] Fig. 27 is a schematic diagram of the structure of a terminal according to an embodiment of the present application;

[0040] Fig.28 It is a schematic diagram of the structure of a network side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0042] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0043] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0044] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0045] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B (home evolved Node B), a Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0046] The following is a detailed description of the information transmission method provided in the embodiments of the present application through some embodiments and their application scenarios in combination with the accompanying drawings.

[0047] Since the time dimension of the AIOT system may not be based on the orthogonal frequency division multiplexing (OFDM) symbol granularity. If the time dimension of the AIOT system is still based on the OFDM symbol granularity, since the length of each OFDM symbol is different, for example, the 1st and 14th OFDM symbols in a time slot have different OFDM symbol lengths due to different cyclic prefix (CP) lengths, the time length of each AIOT modulation symbol (such as OOK symbol) will also have at least two lengths to achieve alignment with the OFDM symbol time length, or the modulation symbol time length of each AIOT is the same, but the time resources corresponding to the CP part of each OFDM symbol need to be specially processed to achieve alignment with the OFDM symbol time length. In the NR OFDM system, CP can solve the problems of inter-carrier interference (ICI) and inter-symbol interference (ISI). However, in the AIOT system, since a non-OFDM waveform is used, generating CP in the OFDM system manner does not have the effect of reducing ISI or ICI. Therefore, the AIOT system needs a new way to determine the basic resource unit.

[0048] like Figure 2 As shown, an embodiment of the present application provides a method 200 for transmitting information. The method can be executed by a communication device. In other words, the method can be executed by software or hardware installed in the communication device. The method includes the following steps.

[0049] S202: The communication device sends or receives first information; wherein a basic resource unit of the first information includes a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part of the basic resource unit other than the second part is the first part; or, the time length of a basic resource unit of the first information is an integer multiple of the time length of the minimum resource unit.

[0050] The communication device mentioned in each embodiment of the present application may be an AIOT device, or a terminal or a network side device (such as a base station or a core network device). For example, in this step, the AIOT device sends the first information to the terminal or the network side device; the AIOT device receives the first information from the terminal or the network side device; the terminal or the network side device receives the first information from the AIOT device; the terminal or the network side device sends the first information to the AIOT device.

[0051] In the AIOT system, the node providing services for the AIOT device may be a base station, a core network device or a terminal, and the terminal may be a UE or other terminal devices, such as a reader, etc. The applicable scenarios of the embodiments of the present application include, for example, two forms of communication between the AIOT device and the base station, and the communication between the AIOT device and the base station assisted by an intermediate node (such as a terminal).

[0052] The first information mentioned in various embodiments of the present application may include an AIOT signal or channel.

[0053] In various embodiments of the present application, the basic resource unit may be a time domain unit, and the basic resource unit may be used for resource allocation, signal mapping, etc. The minimum resource unit includes at least one modulation symbol unit, and a modulation symbol unit may include one or more coding units.

[0054] Optionally, the basic resource unit is one of the following: an OFDM symbol, at least one time slot or subframe, or a predefined fixed time length.

[0055] In one embodiment, the basic resource unit of the AIOT system is an OFDM symbol (including the CP part). The minimum resource unit is at least one modulation symbol unit. A basic resource unit includes N modulation symbol units, where N is a positive integer.

[0056] Optionally, the part of the basic resource unit that does not include the CP (ie, the second part) maps N modulation symbol units, and each modulation symbol unit has the same time length, and the CP part in the basic resource unit generates a signal according to a predefined rule.

[0057] Optionally, N modulation symbol units are mapped in a basic resource unit (including CP), and the time lengths of different modulation symbol units may be different.

[0058] In this embodiment, resource allocation of the first information may be based on a basic resource unit OFDM symbol as a granularity, a time slot or a subframe as a granularity, or a modulation symbol unit as a granularity.

[0059] This embodiment can be compatible with the time unit of the NR OFDM symbol. The time resource part of the OFDM symbol that does not include the CP (i.e., the second part) and the time resource part of the CP of the OFDM symbol (i.e., the first part) can be mapped separately. Signals can be enabled to allow the base station to simultaneously send AIOT downlink signals and NR downlink signals through the same transmitter, thereby reducing the impact on the base station transmitter.

[0060] In another embodiment, the basic resource unit of the AIOT system is at least one time slot, at least one subframe or a predefined fixed time length, and the minimum resource unit is at least one modulation symbol unit. The modulation symbol is an amplitude shift keying (ASK) symbol, such as an OOK symbol, or a binary phase shift keying (BPSK) symbol, or an orthogonal phase shift keying (QPSK) symbol, or a frequency shift keying (FSK) symbol, or a phase shift keying (PSK) symbol, such as BSPK or QPSK, or O-QPSK. A modulation symbol unit may include one or more coding units. For example, using OOK modulation, a modulation symbol unit is an OOK symbol (ON or OFF). For example, using OOK modulation + Manchester coding, 1 bit of information can generate 2 or 4 OOK symbols after encoding. Taking 2-bit Manchester coding as an example, bit information '1' corresponds to 1 OOK OFF and 1 OOK ON symbol, and bit information '0' corresponds to 1 OOK ON and 1 OOK OFF symbol. One modulation symbol unit is an OOK symbol (ON or OFF), and one modulation symbol unit includes one coding unit (one OOK ON or one OOK OFF). Alternatively, one modulation symbol unit is multiple OOK symbols corresponding to 1 bit of information, for example, 2-bit Manchester coding, one modulation symbol unit is 2 OOK symbols, corresponding to two coding units (the coding unit is one OOK ON or one OOK OFF). For another example, using OOK modulation or ASK modulation + pulse width encoding (PIE), one modulation symbol unit is an OOK symbol (ON or OFF) or an ASK symbol (high level or low level), and one modulation symbol unit includes one coding unit (one OOK symbol or ASK symbol). Alternatively, one modulation symbol unit is a plurality of OOK symbols or ASK symbols encoded with 1-bit information '0'. Figure 3As shown, assuming that 1 bit of information '0' corresponds to a high level and a low level (or a high level and zero), the time length of each level is PW, then a coding unit is PW, and a modulation symbol unit contains 2 PWs. Assuming that 1 bit of information '1' corresponds to a high level and a low level (or a high level and zero), the time length of the high level is 3*PW, and the time length of the low level or zero is PW. Then, 1 bit of information '1' corresponds to 2 modulation symbol units.

[0061] In this embodiment, one basic resource unit includes N modulation symbol units, where N is a positive integer. For example, the time length of one OOK symbol is 10 us, and one subframe includes 100 OOK symbols.

[0062] In this embodiment, the resource allocation of the first information is based on the granularity of the basic resource unit, for example, the minimum granularity of the time resource of a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) is a slot, which can occupy M slots, M ≥ 1. In a basic resource unit, the first information is mapped to all modulation symbol units in the basic resource unit, or part of the modulation symbol units.

[0063] This embodiment is compatible with the time unit of the NR time slot or subframe, and the modulation symbols can be mapped sequentially in a time slot or subframe. By sequentially mapping each modulation symbol in the same manner in a time slot or subframe, the complexity of the AIOT device can be reduced.

[0064] The information transmission method provided by the embodiment of the present application is that the communication device sends or receives the first information, and a basic resource unit of the first information may include a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part other than the second part of the basic resource unit is the first part; or, the time length of a basic resource unit of the first information is an integer multiple of the time length of the minimum resource unit. The embodiment of the present application determines the basic resource unit of the first information, so that the transmitting end and the receiving end have a consistent understanding of the basic resource unit, which facilitates the effective transmission of the first information.

[0065] The basic resource unit based on OFDM symbols provided in the embodiment of the present application can simplify the base station measurement processing and reuse the existing NR processing module as much as possible to provide services for AIOT devices.

[0066] The above implementation introduces that a basic resource unit of the first information may include a first part and a second part. The signal mapping method of the first part and the second part will be explained below through multiple implementation methods.

[0067] Mode 1: The second part generates or maps N modulation symbols, the first part does not generate or map any signal, the first part is located before or after the second part, and the length of each modulation symbol is the same. N is the maximum number of complete modulation symbols that can be mapped by the second part, N1 is the number of sampling points corresponding to the first part, and N and N1 are positive integers.

[0068] Mode 1 can simplify the processing at the transmitting end and the receiving end by leaving the first part blank, for example, leaving the CP part blank.

[0069] When the basic resource unit is an OFDM symbol, Figure 4 As shown, for each basic resource unit, the second part of the time resources (corresponding to the N1+1th to the N1+N2th sample points) generates or maps N modulation symbols (for example, OOK symbols, or BPSK / QPSK symbols), and the first part of the time resources (corresponding to the 1st to the N1th sample points) does not generate or map any signal. Wherein, N is the maximum number of complete modulation symbols that can be mapped by the second part of the time resources, and each modulation symbol has the same length.

[0070] According to another implementation of method 1, Figure 5 As shown, for each basic resource unit, the second part of the time resources (corresponding to the 1st to N2th sample points) generates or maps N modulation symbols (for example, OOK symbols, or BPSK / QPSK symbols), and the first part of the time resources (corresponding to the N2th+1th to the N1th+N2th sample points) does not generate or map any signal. Wherein, N is the maximum number of complete modulation symbols that can be mapped by the second part of the time resources, and each modulation symbol has the same length.

[0071] Mode 2: The second part generates or maps N modulation symbols, the first part generates or maps a first specific signal, the first part is located before or after the second part, and the length of each modulation symbol is the same. Optionally, the specific signal is the same as the signal, amplitude or level of the last N1 samples of the second part, or the same as the amplitude or level of the last modulation symbol of the second part.

[0072] When the basic resource unit is an OFDM symbol, Figure 6As shown, for each basic resource unit, the second part of the time resources (corresponding to the N1+1th to N1+N2th samples) generates or maps N modulation symbols (e.g., OOK symbols, or BPSK / QPSK symbols), and the first part of the time resources (corresponding to the 1st to N1th samples) generates or maps a specific signal. The specific signal generated or mapped is the same as the signal, amplitude or level of the last N1 samples in the second part of the time resources, or the same as the amplitude or level of the last modulation symbol in the second part of the time resources (but the time length is N1 samples, not N2 / N samples). Wherein, N is the maximum number of complete modulation symbols that can be mapped to the second part of the time resources, and each modulation symbol has the same length.

[0073] For example, AIOT transmission uses OOK modulation. For each basic resource unit, the second part of the time resource generates or maps 4 OOK symbols, and the signal in the first part of the time resource has the same amplitude (or the same level) as the last OOK symbol in the second part of the time resource.

[0074] According to another implementation of method 2, Figure 7 As shown, for each basic resource unit, the second part of the time resources (corresponding to the 1st to N2th samples) generates or maps N modulation symbols (e.g., OOK symbols, or BPSK / QPSK symbols), and the first part of the time resources (corresponding to the N2+1th to N1+N2th samples) generates or maps a specific signal. The generated or mapped specific signal is the same as the signal, amplitude, or level of the last N1 samples in the second part of the time resources, or the same as the amplitude or level of the last modulation symbol in the second part of the time resources (but the time length is N1 samples, not N2 / N samples).

[0075] Method 2 can simplify the processing of the CP part at the receiving end. For example, the network node can receive AIOT and NR signals in the same OFDM symbol in the time domain and remove the CP in the same way as the NR signal.

[0076] Mode 3: The second part generates or maps N modulation symbols, the first part generates or maps a second specific signal, the first part is located before the second part, and the length of each modulation symbol is the same. Optionally, the second specific signal is the same as the signal, amplitude or level of the first N1 samples of the second part, or the same as the amplitude or level of the first modulation symbol of the second part.

[0077] When the basic resource unit is an OFDM symbol, Figure 8As shown, for each basic resource unit, the second part of the time resources (corresponding to the N1+1th to N1+N2th samples) generates or maps N modulation symbols (e.g., OOK symbols, or BPSK / QPSK symbols), and the first part of the time resources (corresponding to the 1st to N1th samples) generates or maps a specific signal. The specific signal generated or mapped is the same as the signal, amplitude, or level of the first N1 samples in the second part of the time resources, or the same as the amplitude or level of the first modulation symbol in the second part of the time resources (but the time length is N1 samples, not N2 / N samples). Wherein, N is the maximum number of complete modulation symbols that can be mapped to the second part of the time resources, and each modulation symbol has the same length.

[0078] For example, AIOT transmission uses OOK modulation. For each basic resource unit, the second part of the time resource generates or maps 4 OOK symbols, and the signal in the first part of the time resource has the same amplitude (or the same level) as the first OOK symbol in the second part of the time resource.

[0079] Compared with method 2, method 3 can simplify the processing at the transmitter, and there is no need to wait until the last symbol to generate the CP.

[0080] Method 4: A period of time resources between the first part and the beginning of the second part generates or maps a modulation symbol, and the remaining time resources of the second part generates or maps N-1 modulation symbols. The first part is located before the second part, and the length of each of the N-1 modulation symbols is the same.

[0081] When the basic resource unit is an OFDM symbol, Fig. 9 As shown, for each basic resource unit, a modulation symbol is generated or mapped within a period of time between the first part of the time resources (corresponding to the 1st to N1th samples) and the beginning of the second part of the time resources (corresponding to the N1+1th to N1+(N2 / N)th samples), and N-1 modulation symbols are generated or mapped in the remaining part of the second part of the time resources, and the length of each modulation symbol is N2 / N samples. It is not difficult to see that the first modulation symbol is longer than the other N-1 modulation symbols.

[0082] Mode 4 can simplify the processing at the transmitting end, and the transmitted signals are all modulation symbols, and there is no need to generate a CP.

[0083] Method 5: The last time resources of the second part generate or map a modulation symbol with the first part, and the remaining time resources of the second part generate or map N-1 modulation symbols. The first part is located after the second part, and the length of each of the N-1 modulation symbols is the same.

[0084] When the basic resource unit is an OFDM symbol, Fig.10 As shown, for each basic resource unit, a modulation symbol is generated or mapped in the first part of the time resources (corresponding to the N2+1th to the N1+N2th sample points) and the last part of the second part of the time resources (corresponding to the N2-N2 / N+1th to the N2th sample points), and N-1 modulation symbols are generated or mapped in the remaining part of the second part of the time resources, and the length of each modulation symbol is N2 / N sample points. It is not difficult to see that the last modulation symbol is longer than the other N-1 modulation symbols.

[0085] Mode 5 can simplify the processing at the sending end, and the signals sent are all modulation symbols, and there is no need to generate CP.

[0086] Mode 6: The second part generates or maps N modulation symbols, the first part generates or maps predefined modulation symbols, the first part is located before or after the second part, and the length of each modulation symbol is the same.

[0087] For each basic resource unit, the second part of the time resources (corresponding to the N1+1th to N1+N2th sample points) generates or maps N modulation symbols (e.g., OOK symbols, or BPSK / QPSK symbols), and the first part of the time resources (corresponding to the 1st to N1th sample points) generates or maps a specific signal. The specific signal is generated or mapped as a predefined modulation symbol, for example, an OOK ON signal (the amplitude / level of the generated specific signal is the same as the amplitude / level of the OOK ON signal).

[0088] According to another implementation method of method 6, for each basic resource unit, the second part of time resources (corresponding to the 1st to N2th sample points) generates or maps N modulation symbols (for example, OOK symbols, or BPSK / QPSK symbols), and the first part of time resources (corresponding to the N2+1th to N1+N2th sample points) generates or maps a specific signal.

[0089] Mode 6 can simplify the processing at the transmitting end. The signal of the first part is a fixed signal and does not need to rely on the data signal. And the receiving end can use the fixed signal to assist in receiving the data signal, such as AGC, synchronization, etc.

[0090] Mode 7: When the basic resource unit is the first basic resource unit of a transmission, the first part does not generate or map any signal; when the basic resource unit is not the first basic resource unit of a transmission, the first part generates or maps a third specific signal, and the first part is located before the second part. Optionally, the third specific signal is the same as the signal, amplitude or level of the last N1 samples in the previous basic resource unit, or the same as the signal, amplitude or level of the last modulation symbol in the previous basic resource unit.

[0091] When the basic resource unit is an OFDM symbol, Fig.11 As shown, for each basic resource unit, if this basic resource unit is the first basic resource unit of a transmission, the first part of the time resources (corresponding to the 1st to N1th sample points) does not generate or map any signal; if this basic resource unit is the other part of a transmission, a specific signal is generated or mapped on the first part of the time resources (corresponding to the 1st to N1th sample points), and the specific signal is the same as the signal, amplitude or level of the last N1 sample points in the previous basic resource unit, or the same as the signal, amplitude or level of the last modulation symbol in the previous basic resource unit.

[0092] Mode 7 can simplify the processing at the sending end, and only special processing is performed on the starting part or the ending part of a transmission. The other parts can generate signals in the same way.

[0093] Mode 8: When the basic resource unit is the last basic resource unit of a transmission, the first part does not generate or map any signal; when the basic resource unit is not the last basic resource unit of a transmission, the first part generates or maps a fourth specific signal, and the first part is located after the second part. Optionally, the fourth specific signal is the same as the signal, amplitude or level of the last N1 samples in the basic resource unit, or the same as the signal, amplitude or level of the last modulation symbol in the basic resource unit, or the fourth specific signal is the same as the signal, amplitude or level of the first N1 samples of the next basic resource unit, or the same as the signal, amplitude or level of the first modulation symbol of the next basic resource unit.

[0094] When the basic resource unit is an OFDM symbol, Fig.12As shown, for each basic resource unit, if this basic resource unit is the last basic resource unit of a transmission, the first part of the time resources (corresponding to the N2+1th to the N1+N2th samples) does not generate or map any signal; if this basic resource unit is the other part of a transmission, a specific signal is generated or mapped on the first part of the time resources (corresponding to the N2+1th to the N1+N2th samples), and the specific signal is the same as the signal, amplitude or level of the last N1 samples in this basic resource unit, or the same as the signal, amplitude or level of the last modulation symbol in this basic resource unit, or a specific signal is generated or mapped on the first part of the time resources (corresponding to the N2+1th to the N1+N2th samples), and the specific signal is the same as the signal, amplitude or level of the first N1 samples in the next basic resource unit, or the same as the signal, amplitude or level of the first modulation symbol in the next basic resource unit.

[0095] Mode 8 can simplify the processing at the sending end, and only special processing is performed on the starting part or the ending part of a transmission. The other parts can generate signals in the same way.

[0096] Mode 9: When the basic resource unit is an OFDM symbol, for each basic resource unit, the second part of the time resources (corresponding to the N1+1th to N1+N2th samples) generates or maps N modulation symbols (for example, OOK symbols, or BPSK / QPSK symbols), and the signal generated or mapped by the first part of the time resources (corresponding to the 1st to N1th samples) is implemented based on the UE. Optionally, the mapped signal and other modulation symbols use the same modulation method. Optionally, the mapped signal and other modulation symbols use the same power. For example, if the modulation symbol is BPSK, the signal mapped by the first part of the time resources can be a BPSK modulation symbol representing +1 or -1 (or 1 or 0), and the transmission power is the same as the BSPK modulation symbol mapped by the first part of the time resources.

[0097] According to another implementation method of method 9, when the basic resource unit is an OFDM symbol, for each basic resource unit, the second part of the time resources (corresponding to the 1st to N2th sample points) generates or maps N modulation symbols (for example, OOK symbols, or BPSK / QPSK symbols), and the signal generated or mapped by the first part of the time resources (corresponding to the N2+1th to the N1+N2th sample points) can be implemented based on the UE.

[0098] In each of the above methods, N is the maximum number of complete modulation symbols that can be mapped to the second part, N1 is the number of sampling points corresponding to the first part, and N and N1 are positive integers. In addition,

[0099] Optionally, the basic resource unit is at least one time slot or subframe, or a predefined fixed time length, the time length of a basic resource unit is an integer multiple of the time length of the minimum resource unit, and M modulation symbols are generated or mapped in the basic resource unit, where M is a positive integer.

[0100] Optionally, in each of the above embodiments, the first information may include first data or a first signal, and the first signal may include, for example, a preamble, a delimiter or a transmission terminator, and the method further includes the following steps: the communication device receives first resource indication information, and the first resource indicated by the first resource indication information is a resource of the first data; the communication device maps the first data according to the first resource; wherein the second resource occupied by the first signal is determined according to at least one of the following: an indication of the second resource indication information, the time length of the first signal, and a predefined channel structure.

[0101] The resource allocation method adopted in this embodiment is that when the resources of the first signal are not an integer multiple of the basic resource unit, the resources of the data part of the first information are an integer multiple of the basic resource unit and can be aligned with the time slot, subframe or OFDM symbol boundary.

[0102] Optionally, in each of the above embodiments, the first information may include first data or a first signal, and the first signal may include, for example, a preamble, a delimiter or a transmission terminator, and the method further includes the following steps: the communication device receives third resource indication information, and the third resource indicated by the third resource indication information is a resource of the first data and the first signal; the communication device maps the first data and the first signal according to at least one of the following: the third resource, the time length of the first signal, and a predefined channel structure.

[0103] The resource allocation method adopted in this embodiment allows the AIOT device to simply determine all time resources for an AIOT transmission based on the indicated resources.

[0104] The above two embodiments can allocate transmission resources for the first information, so as to facilitate the effective transmission of the first information.

[0105] Optionally, in each of the above implementations, the transmission of the first information is based on repetition, and the method further includes one of the following steps:

[0106] 1) The communication device receives fourth resource indication information, and the fourth resource indicated by the fourth resource indication information is a resource for a single transmission of the first information; the communication device determines a resource for R repeated transmissions of the first information based on the fourth resource; R is a positive integer, and R is greater than 1.

[0107] 2) The communication device receives fifth resource indication information, where the fifth resource indicated by the fifth resource indication information is the resource of the first information repeatedly transmitted R times; R is a positive integer, and R is greater than 1.

[0108] In the case where the transmission of the first information is based on repetition, this embodiment can allocate transmission resources for the first information through the above two methods, so as to facilitate the effective transmission of the first information.

[0109] In this embodiment, the first information may include first data or a first signal; wherein the fourth resource is a resource for a single transmission of the first data, and the second resource occupied by the first signal is determined according to at least one of the following: the second resource indication information indicates the time length of the first signal and a predefined channel structure; or, the fourth resource is a resource for a single transmission of the first data or the first signal.

[0110] Optionally, in each of the above implementations, the resource allocation of the first information is based on the granularity of the basic resource unit, and the basic resource unit is one of the following: an OFDM symbol, at least one time slot or subframe, a predefined fixed time length; or, the resource allocation of the first information is based on the granularity of a time slot, a subframe or a predefined fixed time length, and the basic resource unit is an OFDM symbol.

[0111] The above embodiments provide a basic resource unit, and the method of basic resource unit and signal mapping needs to consider the coexistence of AIOT and NR, including the impact on the complexity of base station implementation and the performance of NR UE, and the resource utilization efficiency and the impact on the complexity of AIOT devices. These impacts are related to the deployment scenario of the AIOT system, such as whether the AIOT system is deployed within the bandwidth of the existing NR system (In-band) and whether the base station needs to serve both AIOT and NR UE, and are also related to the capabilities of the AIOT device, such as whether the AIOT device is a device based on backscatter transmission or a device with independent signal generation capabilities.

[0112] Optionally, in each of the above implementations, before the communication device sends the first information, the method also includes: the communication device maps the first information to all resources of the allocated time resources; or, the communication device maps the first information to a subset of resources of the allocated time resources, and the subset resources are smaller than the allocated time resources.

[0113] Optionally, the transmission of the first information is a single transmission, wherein, among the X basic resource units of the single transmission, no signal is generated or mapped in at least W minimum resource units among the first Y basic resource units or the last Z basic resource units; or, the transmission of the first information is based on repetition; wherein, among the X basic resource units of each repeated transmission, no signal is generated or mapped in at least W minimum resource units among the first Y basic resource units or the last Z basic resource units; or, among multiple basic resource units of R repeated transmissions, no signal is generated or mapped in at least W minimum resource units among the first Y basic resource units or the last Z basic resource units; R, X, Y, Z, W are positive integers, and R is greater than 1.

[0114] The at least W minimum resource units may be located at the start position of the first Y basic resource units, or at the end position of the last Z basic resource units. This embodiment can reduce the impact of inter-user interference caused by non-ideal timing of AIOT devices by leaving a blank at the start position or the end position of a first information.

[0115] Optionally, the length of the time resource in which no signal is generated or mapped is obtained according to at least one of the following: predefined; configured; determined according to a predefined or configured parameter value; determined according to the capability or type of the communication device.

[0116] Optionally, in each of the above implementations, the basic resource unit or signal mapping method used for the uplink transmission and downlink transmission of the communication device is the same; or, the basic resource unit or signal mapping method used for the uplink transmission and downlink transmission of the communication device is different; or, the basic resource unit or signal mapping method used by different types of communication devices is the same; or, the basic resource unit or signal mapping method used by different types of communication devices is different.

[0117] Optionally, the basic resource unit or signal mapping method used by the communication device is obtained according to at least one of the following: predefined; obtained according to a deployment scenario; obtained according to an operating frequency; obtained according to a communication device capability; obtained according to a waveform used for transmission. The deployment scenario includes an in-band deployment scenario or a stand-alone deployment scenario.

[0118] To illustrate the information transmission method provided in the embodiments of the present application in detail, several specific embodiments will be described below.

[0119] Embodiment 1

[0120] This embodiment is described by taking the basic resource unit as an OFDM symbol as an example.

[0121] In some deployment scenarios, the frequency domain resources of the AIOT system are located within the NR system bandwidth (in-band deployment), and the base station (or other nodes providing services for AIOT) can provide services for AIOT devices and NR UEs at the same time in the same time resources, for example, AIOT devices and NR UEs occupy different frequency domain resources. In order to reduce the complexity of existing NR base stations, the hardware of existing NR base stations can be reused as much as possible to provide services for AIOT devices and NR UEs at the same time. For example, AIOT downlink transmission is based on OOK, and the base station can reuse the OFDM generator to generate OOK signals. In this scenario, a more reasonable design is that the basic resource unit for AIOT transmission is an OFDM symbol (including the CP part). In a basic time resource unit, N modulation symbol units may be included. The minimum resource unit is a modulation symbol unit.

[0122] For the convenience of description, it is assumed that one modulation symbol unit corresponds to one modulation symbol, and the modulation symbol represents the modulation symbol unit. However, various embodiments of the present application are also applicable to the case where one modulation symbol unit corresponds to multiple modulation symbols.

[0123] A basic resource unit can be divided into two parts in the time dimension. The time length of the first part of the time resource is the same as the time length of the CP part, and the time length of the second part of the time resource is the same as the time length of the OFDM symbol excluding the CP part. The first part of the time resource is located before the second part of the time resource, or the first part of the time resource is located after the second part of the time resource. Assuming that the time length of a sample point is Ts, the first part of the time resource corresponds to N1 sample points, and the second part of the time resource corresponds to N2 sample points.

[0124] In this embodiment, the signal mapping manner of the first part and the second part can refer to the introduction of manners 1 to 9 above.

[0125] The above methods 1 to 9 are mainly described from the perspective of the transmitting end. In order to ensure correct reception at the receiving end, the receiving end needs to receive according to the same assumption. For example, in the example of method 7, the receiving end assumes that the first part of the time resources of the first basic resource unit is empty, and the receiving end may not process the signal in the first part of the time resources, but only processes the modulation symbols in the second part of the time resources. For the signals in the first part of the time resources of other basic resource units, the receiving end assumes that the signal in the first part of the time resources is the same as the previous modulation symbol. However, the present application does not limit whether the receiving end receives the signal in the first part of the time resources based on this assumption, or whether the receiving end does not process the signal in the first part of the time resources.

[0126] Embodiment 2

[0127] In this embodiment, the basic resource unit is a time slot, a subframe, or a predefined fixed time length.

[0128] In Example 1, the basic resource unit based on OFDM symbols can enable the base station to reuse the existing OFDM processing module to serve the AIOT device. However, since the basic resource unit of the OFDM symbol is not an integer multiple of the time length of the modulation symbol, and the two partial time resources in a basic resource unit need to be processed separately, the resource efficiency is low and the complexity of the AIOT device is high. If the AIOT system and the NR system are implemented by different base stations or two sets of processing modules, the advantage of using OFDM symbols as the basic resource unit is not obvious. For example, the frequency domain resources of the AIOT system are independent of the NR deployment, the carrier where the AIOT system is located does not belong to the NR carrier, or the carrier of the AIOT system belongs to the NR carrier, but there is no NR coverage within the coverage range of the AIOT deployment or the base station serving AIOT (or other nodes providing services for AIOT) does not provide NR services. Usually, the AIOT system and the NR system are implemented by different base stations or two sets of processing modules.

[0129] In this embodiment, the basic resource unit is a time slot, or a resource unit of a predefined fixed time length, such as a subframe. Alternatively, the basic resource unit is L time slots or subframes, where L is predefined or network configured, and L is an integer greater than 1.

[0130] Method A: Fig.13 As shown, the time length of a basic resource unit is an integer multiple (M times, M is a positive integer) of the time length of the minimum resource unit. M modulation symbols are generated or mapped in this basic resource unit. For example, a basic resource unit is a time slot with a time length of 0.5ms, a minimum resource unit is a modulation symbol with a time length of 10us, and a basic resource unit corresponds to 50 modulation symbols.

[0131] Method B: Fig.14 As shown, the time length of a basic resource unit may not be an integer multiple of the minimum resource unit time length.

[0132] A basic resource unit can be divided into two parts in the time dimension. The time length of the second part of the time resource must be an integer multiple of the time length of the minimum resource unit. The remaining part of this basic resource unit is the first part of the time resource. The first part of the time resource is located before the second part of the time resource, or the first part of the time resource is located after the second part of the time resource. Assuming that the time length of a sample point is Ts, the first part of the time resource corresponds to M1 sample points, and the second part of the time resource corresponds to M2 sample points.

[0133] For example, a basic resource unit is a time slot with a time length of 0.5ms, and a minimum resource unit is a modulation symbol with a time length of 8us. A basic resource unit can fully map 62 modulation symbols with 4us remaining. Then the length of the second part of the time resource is 496us, and the length of the first part of the time resource is 4us.

[0134] According to one implementation, for each basic resource unit, the second part of the time resources generates or maps M modulation symbols, and the first part of the time resources is vacant, or generates or maps signals in a predefined manner. For example, the basic resource unit OFDM symbol in the first embodiment is replaced by the time slot or subframe in the second embodiment, and the various modes in the first part of the time resources and the second part of the time resources in the first embodiment are applicable to the second embodiment. For example, the generated specific signal is the same as the signal, amplitude or level of the last M1 sample points in the second part of the time resources, or the same as the amplitude or level of the last modulation symbol in the second part of the time resources (but the time length is M1 sample points, not M2 / M sample points), or the generated specific signal is the same as the signal of the first M1 sample points in the second part of the time resources, or the same as the amplitude or level of the first modulation symbol in the second part of the time resources (but the time length is M1 sample points, not M2 / M sample points), or the generated specific signal is a predefined signal, such as an OOK ON signal, etc.

[0135] The above description is mainly from the perspective of the transmitter. In order to ensure correct reception at the receiver, the receiver needs to receive according to the same assumption. For example, in the example of method B, the receiver assumes that the first part of the time resources of a basic resource unit is empty. The receiver may not process the signal in the first part of the time resources, but only process the modulation symbols in the second part of the time resources.

[0136] Embodiment 3

[0137] This embodiment mainly introduces the relationship between resource allocation or signal mapping of first information and basic resource units.

[0138] 1. Relationship between resource allocation of first information and basic resource unit.

[0139] The transmission of the first information includes only data (payload), or the transmission of the first information includes both data and a first signal, such as at least one of a preamble, a delimiter, and a transmission terminator.

[0140] According to one implementation, Fig.15As shown, the resource indicated or configured by the base station for the transmission of the first information is a resource for the data of the first information. The AIOT device maps the data according to the indicated or configured resources, and the resource of the first signal is determined according to the indicated or configured time resource, the time length of the first signal, and the predefined channel structure (the time sequence of the first signal and the data). For example, the base station indicates that the time resource for a first message is time slot n to time slot n+10, and the data is mapped in time slot n to time slot n+10. Assuming that the length of the preamble is 2 time slots, the time resource of the preamble is time slot n-2 to time slot n-1.

[0141] According to another implementation, Fig.16 As shown, the resources indicated or configured by the base station for the transmission of the first information are a resource for the data of the first information and a resource for the first signal. Optionally, the resources indicated or configured by the base station for the transmission of the first information are a resource for the data of the first information and a resource for at least one signal in the first signal, for example, including a preamble, but excluding a delimiter. The AIOT device maps the first signal and the data according to the indicated or configured resources, the time length of the first signal and the predefined channel structure (the time sequence of the first signal and the data). For example, the base station indicates that the time resources for a first information are time slot n-2 to time slot n+10. Assuming that the length of the preamble is 2 time slots, the time resources of the preamble are time slot n-2 to time slot n-1, and the data is mapped in time slot n to time slot n+10.

[0142] The transmission of a first message is based on repetition (repetition factor R>1). According to one implementation, Fig.17 As shown, the resources indicated or configured by the base station for the transmission of the first information are resources for a single transmission of the first information. The AIOT device determines the resources for R transmissions based on the indicated or configured resources, wherein the resources for the first transmission are determined based on the indicated or configured resources, and the number of basic resource units for the other R-1 repeated transmissions is the same as that for the first transmission, and each transmission is mapped to an adjacent time slot or subframe. If the base station also indicates the interval between each repeated transmission, each transmission is in a non-adjacent time slot or subframe. The time resource starting point for the next repeated transmission is determined based on the time resource and interval of the previous repeated transmission.

[0143] If the transmission of a first information includes both data and a first signal, the first signal in each repeated transmission may be the same or different. For example, the first signal is a delimiter, which is sent only before the first repeated transmission and is not included in other repeated transmissions. For another example, the first signal is a preamble, which is included in each repeated transmission.

[0144] Optionally, the resources indicated or configured by the base station for the transmission of the first information are resources for data of a single transmission of the first information. The AIOT device determines the resources for R transmissions based on the indicated or configured resources, wherein the resources for the data for the first transmission are determined based on the indicated or configured resources, and the resources for the first signal for the first transmission are determined based on the indicated or configured time resources, the time length of the first signal, and a predefined channel structure (the time sequence of the first signal and the data). If the channel structure of the R repeated transmissions is the same, the resources for the remaining R-1 repeated transmissions are determined based on the data of the first repeated transmission and the resources of the first signal, and the number of basic resource units for each other repeated transmission is the same as that for the first repeated transmission.

[0145] For example, Fig.18 As shown, the number of repetitions of a first message is 2, the first repetition transmission includes preamble and data, and the second repetition transmission includes preamble and data. The base station indicates that the time resource for a first message is time slot n to time slot n+10. Assuming that the length of the preamble is 2 time slots, the time resource of the preamble of the first repetition transmission is time slot n-2 to time slot n-1, and the data of the first repetition transmission is mapped in time slot n to time slot n+10. The preamble of the second repetition transmission is mapped in time slot n+11 to time slot n+12. The data of the second repetition transmission is mapped in time slot n+13 to time slot n+22.

[0146] If the channel structures of the R repeated transmissions are different, for example, the first repeated transmission includes preamble and data, and the other repeated transmissions only have data, then the number of basic resource units of the data of the other R-1 repeated transmissions is the same as that of the first transmission. The repeated transmissions of the first information are mapped to adjacent time slots or subframes. If the base station also indicates the interval between the repeated transmissions, the transmissions are in non-adjacent time slots or subframes. The time resource starting point of the next repeated transmission is determined based on the time resource and interval of the previous repeated transmission. For example, Fig.19 As shown, the number of repetitions of a first message is 2, the first repetition transmission includes preamble and data, and the second repetition transmission only has data. The base station indicates that the time resource for a first message is time slot n to time slot n+10. Assuming that the length of the preamble is 2 time slots, the time resource of the preamble is time slot n-2 to time slot n-1, and the data of the first repetition transmission is mapped to time slot n to time slot n+10. The data of the second repetition transmission is mapped to time slot n+11 to time slot n+20.

[0147] Optionally, the resources indicated or configured by the base station for the transmission of the first information are resources for data of a single transmission of the first information, and resources for at least one signal in the first signal. If the channel structure of the R repeated transmissions is the same, then the number of basic resource units of the preamble and data of the other R-1 repeated transmissions is the same as that of the first transmission. Each repeated transmission of the first information is mapped to adjacent time slots or subframes. If the base station also indicates the interval between each repeated transmission, each transmission is in a non-adjacent time slot or subframe. The time resource starting point of the next repeated transmission is determined based on the time resource and interval of the previous repeated transmission. If the channel structure of the R repeated transmissions is different, then the number of basic resource units of the data of the other R-1 repeated transmissions is the same as that of the first transmission. Each repeated transmission of the first information is mapped to adjacent time slots or subframes. If the base station also indicates the interval between each repeated transmission, each transmission is in a non-adjacent time slot or subframe. The time resource starting point of the next repeated transmission is determined based on the time resource and interval of the previous repeated transmission, such as Fig. 20 shown.

[0148] If the transmission of a first information includes both data and a first signal, such as Fig.21 As shown. Optionally, the resources indicated or configured by the base station for the transmission of the first information are resources for data of R repeated transmissions of the first information. Optionally, the resources indicated or configured by the base station for the transmission of the first information are resources for data of a single transmission of the first information, and resources for at least one signal in the first signal.

[0149] According to one implementation, the basic resource unit and signal mapping method are determined according to embodiment one, and the resource allocation of the first information (including the data part and the first signal part, if any) is based on the granularity of the basic resource unit OFDM symbol. For example, the starting point and / or end point of the time resource allocated for a first information can be aligned with the boundary within a time slot / subframe, or the starting point and / or end point of the time resource of a first information can be the starting point or end point of an OFDM symbol within a time slot / subframe.

[0150] According to another implementation, the basic resource unit and signal mapping method are determined according to the first embodiment and / or the second embodiment, and the resource allocation of the first information is based on the granularity of slot or subframe, for example, the starting point and / or end point of the time resource allocated for a first information is aligned with the boundary within a time slot / subframe. Optionally, the resource allocation of the first information includes only the data part, and the starting point and / or end point of the time resource of the first signal part may not be aligned with the boundary within a time slot / subframe. For example, the resources indicated by the base station are time slots n to n+10, the indicated resources are the resources of the data part, and the length of the delimiter is 4 symbols. Assuming that a time slot includes 14 symbols, the starting point of the section break is the 11th symbol of the time slot n-1. That is, the starting point of the section break is not at the time slot boundary, and the end point is at the time slot boundary. Optionally, the resource allocation of the first information includes the data part and the first signal, such as the delimiter+data, then the starting point of the delimiter is at the time slot boundary, and the starting point of the data is the 5th symbol of a time slot, not at the time slot boundary.

[0151] 2. Relationship between the mapping of the first information and the basic resource unit.

[0152] According to one implementation, a first information is mapped to all resources of the allocated time resources. In the allocated time resources, if the first part of the time resources determined according to the method of embodiment 1 or embodiment 2 is empty (such as method 1, 7, 8 in embodiment 1), no signal is mapped.

[0153] According to one implementation, the time resource mapped to a first information may be a subset of the allocated time resource. By leaving a blank at the beginning or end of a first information, the impact of inter-user interference caused by the non-ideal timing of the AIOT device can be reduced. For example, the timing error of the AIOT device is ±T, and the time length of the blank position is not less than 2*T. By leaving a blank at the beginning or end of a first information, the impact of inter-user interference caused by the different times when the uplink signals of different AIOT devices arrive at the base station can be reduced. For example, the maximum time difference between the uplink signals of two AIOT devices reaching the base station is T_uplink (T_uplink may include the sum of the uplink transmission time difference and the synchronization error of two AIOT devices), and the time length of the blank position is not less than T_uplink or 2*T_uplink, and time may also be reserved for the switching of the baseband or radio frequency. In order to make the corresponding position blank, rate matching or puncturing may be used, or the impact of assuming the blank position when calculating the AIOT signal load size.

[0154] Assume that a time resource allocated by a first information includes X basic resource units, and no signal is generated or mapped in the time resource of the beginning or the end of the X basic resource units. For example, the time resource is the first Y basic resource units or the last Z basic resource units of the X basic resource units, or the signal is not generated or mapped in at least W minimum resource units of the first Y basic resource units or the last Z basic resource units.

[0155] Optionally, the length of the time resource is predefined by the standard, or configured, or determined according to a parameter value predefined or configured by the standard. For example, the length of the time resource is determined according to the length of the first part of the time resource in mode B in embodiment 2. For another example, the length of the time resource is determined according to at least one parameter among Y, Z, and W, and the value of at least one of Y, Z, and W is predefined or configured by the standard.

[0156] Optionally, the length of the time resource is related to the capability / type of the AIOT device. For example, the synchronization accuracy that can be achieved by AIOT device type A / B and AIOT device type C is different, and the corresponding W may be different. For another example, the synchronization / timing mode of AIOT device type A / B and AIOT device type C is different, and the corresponding W may be different.

[0157] For example, according to method A of embodiment 2, a basic resource unit is a time slot with a time length of 0.5ms, a minimum resource unit is a modulation symbol with a time length of 10us, and a basic resource unit corresponds to M=50 modulation symbols. Assuming that the time resource allocated by a first information is X=4 time slots, Y=0, Z=1, and W=1, then in the 1st to 3rd time slots, each time slot maps 50 modulation symbols, and in the 4th time slot maps 49 modulation symbols, the position of the 50th modulation symbol must be left empty and no signal is generated or mapped. In this way, two AIOT devices with a timing error of no more than ±5us can be transmitted in adjacent time slots without generating inter-symbol interference, such as Fig. 22 shown.

[0158] For example, according to method B of embodiment 2, a basic resource unit is a time slot with a time length of 0.5ms, a minimum resource unit is a modulation symbol with a time length of 8us, and the second part of the time resources of a basic resource unit corresponds to M=64 modulation symbols, and the first part of the time resources corresponds to 4us. Assuming that the time resources allocated by a first information are X=4 time slots, Y=0, Z=1, and W=1, then in the 1st to 3rd time slots, the second part of the time resources of each time slot maps 64 modulation symbols, and the first part of the time resources of each time slot (the last 4us) is vacant or maps the signal in a predefined manner. In the 4th time slot, the second part of the time resources maps 63 modulation symbols, and the position of the 64th modulation symbol of the second part of the time resources and the first part of the time resources (the last 4us) needs to be vacant without generating or mapping any signal. In this way, two AIOT devices with a timing error of no more than ±6us can be sent in adjacent time slots without generating inter-symbol interference.

[0159] For example, according to method 1 of embodiment 1, a basic resource unit is an OFDM symbol length, and the minimum resource unit is an OOK modulation symbol. A time slot includes 14 basic resource units, and a basic resource unit includes 4 modulation symbols. Assuming that the time resources allocated by a first information are 2 time slots, that is, X=28 basic resource units, Y=1, Z=0, then the first basic resource unit in the first time slot is vacated, the first part of the time resources of each basic resource unit in the other 27 basic resource units is vacated, and the second part of the time resources is mapped to the modulation symbol, and a total of 108 modulation symbols are mapped.

[0160] For example, according to method 6 of embodiment 1, a basic resource unit is an OFDM symbol length, and the minimum resource unit is an OOK modulation symbol. A time slot includes 14 basic resource units, and a basic resource unit includes 4 modulation symbols. Assuming that the time resource allocated by a first information is 2 time slots, that is, X=28 basic resource units, Y=1, Z=0, then the first basic resource unit in the first time slot is vacant, and the first part of the time resources of each basic resource unit in the other 27 basic resource units sends the level of the OOK ON signal, and the second part of the time resources maps the modulation symbol, and a total of 108 modulation symbols are mapped.

[0161] According to one implementation, if the transmission of a first information is based on repetition (number of repeated transmissions R>1), in each repeated transmission of the X basic resource units of the resource, no signal is generated or mapped in at least W minimum resource units in the first Y basic resource units or the last Z basic resource units.

[0162] For example, according to Mode 1 of Embodiment 2, a basic resource unit is a time slot with a time length of 0.5 ms, the minimum resource unit is a modulation symbol with a time length of 10 us, and one basic resource unit corresponds to M = 50 modulation symbols. Assume that the number of repetitions R of a first piece of information is 2, and the allocated resources for each repeated transmission are X = 2 time slots. Y = 0, Z = 1, W = 1. Then, in the 1st and 3rd time slots, 50 modulation symbols are mapped to each time slot. In the 2nd and 4th time slots, 49 modulation symbols are mapped to each time slot, and the position of the 50th modulation symbol needs to be left empty without generating or mapping any signal. In this way, two AIoT devices with a timing error not exceeding 10 us can send data in adjacent time slots without generating inter-symbol interference. And if the baseband and / or radio frequency need to be switched between each repeated transmission, it can be completed within an interval of 10 us without affecting other modulation symbols, such as Fig.23 as shown

[0163] According to one implementation, among the multiple basic resource units (total resources) for R repeated transmissions, at least W minimum resource units in the first Y basic resource units or the last Z basic resource units do not generate or map signals.

[0164] For example, according to Mode 1 of Embodiment 2, a basic resource unit is a time slot with a time length of 0.5 ms, the minimum resource unit is a modulation symbol with a time length of 10 us, and one basic resource unit corresponds to M = 50 modulation symbols. Assume that the number of repetitions R of a first piece of information is 2, and the resources for each repeated transmission are 2 time slots, so the total resources are X = 4 time slots. Y = 0, Z = 1, W = 1. Then, in the 1st to 3rd time slots, 50 modulation symbols are mapped to each time slot. In the 4th time slot, 49 modulation symbols are mapped to each time slot, and the position of the 50th modulation symbol needs to be left empty without generating or mapping any signal. In this way, two AIoT devices with a timing error not exceeding 10 us can send data in adjacent time slots without generating inter-symbol interference, such as Fig.24 as shown

[0165] Optionally, if the transmission of a first piece of information is based on repetition (the number of repetitions R > 1), the time resources allocated for a first piece of information represent the time resources for R' repeated transmissions (R' < R). Among the X basic resource units of the total resources for R' repeated transmissions, at least W minimum resource units in the first Y basic resource units or the last Z basic resource units do not generate or map signals.

[0166] Embodiment 4

[0167] This embodiment mainly introduces how to select basic resource units and the signal mapping method.

[0168] According to one implementation, the uplink and downlink transmissions of the AIOT system use the same basic resource unit and signal mapping method. For example, the uplink and downlink transmissions are determined in the same manner as in Embodiment 1, or the uplink and downlink transmissions are determined in the same manner as in Embodiment 2. The use of a unified basic resource unit and signal mapping method for uplink and downlink transmissions can simplify the design.

[0169] According to one implementation, different basic resource units and signal mapping methods may be used for uplink and downlink transmission of the AIOT system. For example, if the downlink transmission is based on OOK transmission, the base station can reuse the OFDM transmitter to provide downlink services for AIOT devices and NR UEs. Therefore, the AIOT system uses OFDM as the basic resource unit for downlink and uses OFDM symbols as units for signal mapping (such as the method of embodiment one) to minimize the additional base station complexity brought to support the AIOT system. In the uplink transmission, since OFDM will cause the transmitter of AIOT to be too complex and unable to achieve the effect of low power consumption, the uplink transmission will not use the OFDM transmitter to generate the signal. Accordingly, the base station receives the AIOT uplink signal, nor can it receive the signal based on the OFDM receiver. Therefore, the uplink transmission of AIOT can not use OFDM as the basic resource unit and use OFDM symbols as units for signal mapping. The uplink transmission of AIOT can use simpler and more resource-efficient basic resource units and signal mapping methods (such as the method of embodiment two). For another example, both uplink and downlink use OFDM symbols as basic resource units, but the processing methods for the first part of time resources may be different. For example, for downlink transmission to simplify base station processing, a method compatible with the existing OFDM symbol CP generation method may be used, such as method 2 of embodiment 1. For uplink transmission to simplify the processing of AIOT devices, method 1 of embodiment 1 may be used.

[0170] According to one implementation, different AIOT device types use the same basic resource unit and signal mapping method. Using a unified basic resource unit and signal mapping method for different AIOT device types can simplify the design.

[0171] According to another implementation method, different AIOT device types use different basic resource units and signal mapping methods. For example, AIOT device type C has independent signal generation and strong signal processing capabilities. It is a typical application scenario that the same base station provides services for NR UE and AIOT device C in the NR frequency band at the same time. Therefore, it is beneficial for AIOT device type C to use OFDM as the basic resource unit for at least downlink transmission and use OFDM symbols as units for signal mapping, which can minimize the additional base station complexity brought to support AIOT systems. AIOT device types A / B can only transmit through backscatter, process simple waveforms and modulation methods, and have limited coverage, for example, they are more suitable for indoor scenarios. It is a typical application scenario that a base station only provides services for AIOT devices without NR UE. Therefore, it is beneficial for AIOT device types A / B to adopt simpler and more resource-efficient basic resource units and signal mapping methods (such as the method of embodiment 2).

[0172] Optionally, the basic resource unit and signal mapping method used by the AIOT device are predefined. For example, AIOT device type A / B only supports the method of embodiment 2, and AIOT device type C only supports the method of embodiment 1.

[0173] Optionally, the basic resource unit and signal mapping method used by the AIOT device are predefined and configurable. For example, AIOT device type A / B only supports the method of embodiment 2. AIOT device type C supports the methods of embodiment 1 and embodiment 2, and the base station configures which method AIOT device type C uses.

[0174] According to one implementation, the basic resource units and signal mapping methods that can be used by AIOT devices are related to the deployment scenario. For example, for the in-band deployment scenario, the downlink transmission of the AIOT device adopts at least the method of embodiment 1, and for the stand-alone deployment scenario, the AIOT device adopts the method of embodiment 2. Optionally, the deployment scenario can be determined by a non-standardized method, such as OAM, or some scenarios can be determined based on the operating frequency.

[0175] According to one implementation, the basic resource units and signal mapping methods that can be used by AIOT devices are related to the operating frequency. The standard predefines the basic resource units and signal mapping methods corresponding to an operating frequency.

[0176] According to one implementation, the transmission of the AIOT system may adopt one or more of a variety of waveforms. For example, an ASK (e.g., OOK) signal generated based on OFDM, or a pulse-shaped ASK (e.g., OOK) signal, or a PSK signal. Depending on the different waveforms, the basic resource units and signal mapping methods that can be adopted by the AIOT device may be different.

[0177] The basic resource unit based on OFDM symbols provided in the embodiment of the present application can simplify the base station measurement processing and reuse the existing NR processing module as much as possible to provide services for AIOT devices. The embodiment of the present application provides a variety of methods for processing the CP time length part according to the different requirements of the complexity of AIOT devices and the complexity of the system, and the modulation method (such as OOK). And the basic resource unit and signal mapping method provided in the embodiment of the present application can achieve a compromise between performance and complexity for different deployment scenarios and AIOT device complexity. In addition, the channel / signal mapping method provided in the embodiment of the present application can reduce the interference caused by the synchronization error of the AIOT device.

[0178] The information transmission method provided in the embodiment of the present application can be executed by an information transmission device. In the embodiment of the present application, the information transmission device provided in the embodiment of the present application is described by taking the information transmission method executed by the information transmission device as an example.

[0179] Fig.25 is a schematic diagram of the structure of an information transmission device according to an embodiment of the present application, and the device may correspond to a communication device in other embodiments. Fig.25 As shown, the device 2500 includes the following modules.

[0180] Transmission module 2502 is used to send or receive first information; wherein a basic resource unit of the first information includes a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part of the basic resource unit other than the second part is the first part; or, the time length of a basic resource unit of the first information is an integer multiple of the time length of the minimum resource unit.

[0181] Optionally, the device 2500 may further include a processing module and the like.

[0182] The embodiment of the present application determines the basic resource unit of the first information so that the transmitting end and the receiving end have consistent understanding of the basic resource unit, thereby facilitating the effective transmission of the first information.

[0183] Optionally, as an embodiment, the basic resource unit is one of the following: an OFDM symbol, at least one time slot or subframe, a predefined fixed time length.

[0184] Optionally, as an embodiment, one of the basic resource units includes a first part and a second part; wherein the first part and the second part satisfy at least one of the following:

[0185] 1) The second part generates or maps N modulation symbols, the first part does not generate or map any signal, the first part is located before or after the second part, and the length of each modulation symbol is the same.

[0186] 2) The second part generates or maps N modulation symbols, and the first part generates or maps a first specific signal. The first part is located before or after the second part, and the length of each modulation symbol is the same. Optionally, the first specific signal is the same as the signal, amplitude or level of the last N1 samples of the second part, or the same as the amplitude or level of the last modulation symbol of the second part.

[0187] 3) The second part generates or maps N modulation symbols, the first part generates or maps a second specific signal, the first part is located before the second part, and the length of each modulation symbol is the same. Optionally, the second specific signal is the same as the signal, amplitude or level of the first N1 samples of the second part, or the same as the amplitude or level of the first modulation symbol of the second part.

[0188] 4) A period of time resources between the first part and the beginning of the second part generates or maps a modulation symbol, and the remaining time resources of the second part generates or maps N-1 modulation symbols. The first part is located before the second part, and the length of each of the N-1 modulation symbols is the same.

[0189] 5) The last time resources of the second part generate or map a modulation symbol with the first part, and the remaining time resources of the second part generate or map N-1 modulation symbols. The first part is located after the second part, and the length of each of the N-1 modulation symbols is the same.

[0190] 6) The second part generates or maps N modulation symbols, the first part generates or maps predefined modulation symbols, the first part is located before or after the second part, and the length of each modulation symbol is the same.

[0191] 7) When the basic resource unit is the first basic resource unit of a transmission, the first part does not generate or map any signal; when the basic resource unit is not the first basic resource unit of a transmission, the first part generates or maps a third specific signal, and the first part is located before the second part. Optionally, the third specific signal is the same as the signal, amplitude or level of the last N1 samples in the previous basic resource unit, or the same as the signal, amplitude or level of the last modulation symbol in the previous basic resource unit.

[0192] 8) When the basic resource unit is the last basic resource unit of a transmission, the first part does not generate or map any signal; when the basic resource unit is not the last basic resource unit of a transmission, the first part generates or maps a fourth specific signal, and the first part is located after the second part. Optionally, the fourth specific signal is the same as the signal, amplitude or level of the last N1 samples in the basic resource unit, or the same as the signal, amplitude or level of the last modulation symbol in the basic resource unit, or the fourth specific signal is the same as the signal, amplitude or level of the first N1 samples of the next basic resource unit, or the same as the signal, amplitude or level of the first modulation symbol of the next basic resource unit.

[0193] Among them, N is the maximum number of complete modulation symbols that can be mapped to the second part, N1 is the number of sampling points corresponding to the first part, and N and N1 are positive integers.

[0194] Optionally, as an embodiment, the basic resource unit is at least one time slot or subframe, or a predefined fixed time length, the time length of one basic resource unit is an integer multiple of the time length of the minimum resource unit, and M modulation symbols are generated or mapped in the basic resource unit, where M is a positive integer.

[0195] Optionally, as an embodiment, the first information includes first data or a first signal, and the communication module 2502 is also used to: receive first resource indication information, the first resource indicated by the first resource indication information is the resource of the first data; map the first data according to the first resource; wherein the second resource occupied by the first signal is determined according to at least one of the following: the indication of the second resource indication information, the time length of the first signal and a predefined channel structure; or, receive third resource indication information, the third resource indicated by the third resource indication information is the resource of the first data and the first signal; map the first data and the first signal according to at least one of the following: the third resource, the time length of the first signal and a predefined channel structure.

[0196] Optionally, as an embodiment, the transmission of the first information is based on repetition, and the communication module 2502 is also used to: receive fourth resource indication information, the fourth resource indicated by the fourth resource indication information is a resource for a single transmission of the first information; determine the resource for R repeated transmissions of the first information based on the fourth resource; or, receive fifth resource indication information, the fifth resource indicated by the fifth resource indication information is a resource for R repeated transmissions of the first information; R is a positive integer, and R is greater than 1.

[0197] Optionally, as an embodiment, the first information includes first data or a first signal; wherein the fourth resource is a resource for a single transmission of the first data, and the second resource occupied by the first signal is determined according to at least one of the following: the second resource indication information indicates the time length of the first signal and a predefined channel structure; or, the fourth resource is a resource for a single transmission of the first data or the first signal.

[0198] Optionally, as an embodiment, the resource allocation of the first information is based on the granularity of the basic resource unit, and the basic resource unit is one of the following: an OFDM symbol, at least one time slot or subframe, a predefined fixed time length; or, the resource allocation of the first information is based on the granularity of a time slot, a subframe or a predefined fixed time length, and the basic resource unit is an OFDM symbol.

[0199] Optionally, as an embodiment, the communication module 2502 is also used to: map the first information to all resources of the allocated time resources; or, map the first information to a subset of resources of the allocated time resources, wherein the subset of resources is smaller than the allocated time resources.

[0200] Optionally, as an embodiment, the transmission of the first information is a single transmission, wherein, among the X basic resource units of the single transmission, no signal is generated or mapped in at least W minimum resource units among the first Y basic resource units or the last Z basic resource units; or, the transmission of the first information is based on repetition; wherein, among the X basic resource units of each repeated transmission, no signal is generated or mapped in at least W minimum resource units among the first Y basic resource units or the last Z basic resource units; or, among multiple basic resource units of R repeated transmissions, no signal is generated or mapped in at least W minimum resource units among the first Y basic resource units or the last Z basic resource units; R, X, Y, Z, W are positive integers, and R is greater than 1.

[0201] Optionally, as an embodiment, the length of the time resource in which no signal is generated or mapped is obtained according to at least one of the following: predefined; configured; determined according to a predefined or configured parameter value; determined according to the capability or type of the device.

[0202] Optionally, as an embodiment, the basic resource unit or signal mapping method used for the uplink transmission and downlink transmission of the device is the same; or, the basic resource unit or signal mapping method used for the uplink transmission and downlink transmission of the device is different; or, the basic resource unit or signal mapping method used by different types of devices is the same; or, the basic resource unit or signal mapping method used by different types of devices is different.

[0203] Optionally, as an embodiment, the basic resource unit or signal mapping method adopted by the device is obtained according to at least one of the following: predefined; obtained according to a deployment scenario; obtained according to an operating frequency; obtained according to device capabilities; obtained according to a waveform adopted for transmission.

[0204] According to the device 2500 of the embodiment of the present application, the process of the method 200 corresponding to the embodiment of the present application can be referred to, and the various units / modules in the device 2500 and the above-mentioned other operations and / or functions are respectively for implementing the corresponding processes in the method 200, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

[0205] The information transmission device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or it can be other devices other than a terminal. Exemplarily, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0206] The information transmission device provided in the embodiment of the present application can achieve Figures 2 to 24 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0207] Optional, such as Fig.26As shown, the embodiment of the present application further provides a communication device 2600, including a processor 2601 and a memory 2602, and the memory 2602 stores a program or instruction that can be run on the processor 2601. For example, when the communication device 2600 is a terminal, the program or instruction is executed by the processor 2601 to implement the various steps of the above-mentioned information transmission method embodiment, and can achieve the same technical effect. When the communication device 2600 is a network side device, the program or instruction is executed by the processor 2601 to implement the various steps of the above-mentioned information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0208] An embodiment of the present application also provides a terminal, including a processor and a communication interface, the communication interface is used to send or receive first information; wherein a basic resource unit of the first information includes a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part other than the second part of the basic resource unit is the first part; or, the time length of a basic resource unit of the first information is an integer multiple of the time length of the minimum resource unit. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, Fig. 27 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0209] The terminal 2700 includes but is not limited to: a radio frequency unit 2701, a network module 2702, an audio output unit 2703, an input unit 2704, a sensor 2705, a display unit 2706, a user input unit 2707, an interface unit 2708, a memory 2709 and at least some of the components of the processor 2710.

[0210] Those skilled in the art will appreciate that the terminal 2700 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 2710 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig. 27 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0211] It should be understood that in the embodiment of the present application, the input unit 2704 may include a graphics processor (Graphics Processing Unit, GPU) 27041 and a microphone 27042, and the graphics processor 27041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 2706 may include a display panel 27061, and the display panel 27061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 2707 includes a touch panel 27071 and at least one of other input devices 27072. The touch panel 27071 is also called a touch screen. The touch panel 27071 may include two parts: a touch detection device and a touch controller. Other input devices 27072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0212] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 2701 can transmit the data to the processor 2710 for processing; in addition, the RF unit 2701 can send uplink data to the network side device. Generally, the RF unit 2701 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0213] The memory 2709 can be used to store software programs or instructions and various data. The memory 2709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 2709 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may 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 may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 2709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0214] The processor 2710 may include one or more processing units; optionally, the processor 2710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 2710.

[0215] Among them, the radio frequency unit 2701 can be used to send or receive first information; wherein a basic resource unit of the first information includes a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part of the basic resource unit other than the second part is the first part; or, the time length of a basic resource unit of the first information is an integer multiple of the time length of the minimum resource unit.

[0216] The embodiment of the present application determines the basic resource unit of the first information so that the transmitting end and the receiving end have consistent understanding of the basic resource unit, thereby facilitating the effective transmission of the first information.

[0217] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the information transmission method embodiment, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0218] The embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is used to send or receive first information; wherein a basic resource unit of the first information includes a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part other than the second part of the basic resource unit is the first part; or, the time length of a basic resource unit of the first information is an integer multiple of the time length of the minimum resource unit. This network side device embodiment corresponds to the above-mentioned network side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network side device embodiment, and can achieve the same technical effect.

[0219] The present application embodiment also provides a network side device. Fig.28 As shown, the network side device 2800 includes: an antenna 281, a radio frequency device 282, a baseband device 283, a processor 284 and a memory 285. The antenna 281 is connected to the radio frequency device 282. In the uplink direction, the radio frequency device 282 receives information through the antenna 281 and sends the received information to the baseband device 283 for processing. In the downlink direction, the baseband device 283 processes the information to be sent and sends it to the radio frequency device 282. The radio frequency device 282 processes the received information and sends it out through the antenna 281.

[0220] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 283, which includes a baseband processor.

[0221] The baseband device 283 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig.28 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 285 through a bus interface to call the program in the memory 285 to execute the network device operations shown in the above method embodiment.

[0222] The network side device may further include a network interface 286, which is, for example, a Common Public Radio Interface (CPRI).

[0223] The network side device 2800 of the embodiment of the present application further includes: instructions or programs stored in the memory 285 and executable on the processor 284, and the processor 284 calls the instructions or programs in the memory 285 to execute Fig.25 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0224] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned information transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0225] The processor is the processor in the terminal described in the above embodiment. The readable storage medium may be non-volatile or non-transient. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0226] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0227] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0228] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the above-mentioned information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0229] An embodiment of the present application also provides an information transmission system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the information transmission method as described above, and the network side device can be used to execute the steps of the information transmission method as described above.

[0230] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0231] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0232] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A method for transmitting information, characterized in that: include: The communication device sends or receives first information; A basic resource unit of the first information includes a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part of the basic resource unit other than the second part is the first part; or, The time length of a basic resource unit of the first information is an integer multiple of the time length of a minimum resource unit.

2. The method according to claim 1, characterized in that One of the basic resource units includes a first part and a second part; wherein the first part and the second part satisfy one of the following: The second part generates or maps N modulation symbols, the first part does not generate or map any signal, the first part is located before or after the second part, and the length of each modulation symbol is the same; The second part generates or maps N modulation symbols, the first part generates or maps a first specific signal, the first part is located before or after the second part, and the length of each modulation symbol is the same; The second part generates or maps N modulation symbols, the first part generates or maps a second specific signal, the first part is located before the second part, and the length of each modulation symbol is the same; A time resource between the first part and the beginning of the second part generates or maps a modulation symbol, and a remaining time resource of the second part generates or maps N-1 modulation symbols, the first part is located before the second part, and the length of each modulation symbol in the N-1 modulation symbols is the same; The last time resource of the second part generates or maps one modulation symbol with the first part, and the remaining time resources of the second part generate or map N-1 modulation symbols, the first part is located after the second part, and the length of each modulation symbol in the N-1 modulation symbols is the same; The second part generates or maps N modulation symbols, the first part generates or maps predefined modulation symbols, the first part is located before or after the second part, and the length of each modulation symbol is the same; In the case where the basic resource unit is the first basic resource unit of a transmission, the first part does not generate or map any signal; in the case where the basic resource unit is not the first basic resource unit of a transmission, the first part generates or maps a third specific signal, and the first part is located before the second part; In the case where the basic resource unit is the last basic resource unit of a transmission, the first part does not generate or map any signal; in the case where the basic resource unit is not the last basic resource unit of a transmission, the first part generates or maps a fourth specific signal, and the first part is located after the second part; Among them, N is the maximum number of complete modulation symbols that can be mapped to the second part, N1 is the number of sampling points corresponding to the first part, and N and N1 are positive integers.

3. The method according to claim 2, characterized in that The first specific signal is the same as the signal, amplitude or level of the last N1 samples of the second part, or the same as the amplitude or level of the last modulation symbol of the second part; or, The second specific signal is the same as the signal, amplitude or level of the first N1 samples of the second part, or the same as the amplitude or level of the first modulation symbol of the second part; or, The third specific signal is the same as the signal, amplitude or level of the last N1 samples in the previous basic resource unit, or the same as the signal, amplitude or level of the last modulation symbol in the previous basic resource unit; or, The fourth specific signal is the same as the signal, amplitude or level of the last N1 samples in the basic resource unit, or the same as the signal, amplitude or level of the last modulation symbol in the basic resource unit, or the fourth specific signal is the same as the signal, amplitude or level of the first N1 samples of the next basic resource unit, or the same as the signal, amplitude or level of the first modulation symbol of the next basic resource unit.

4. The method according to claim 1, characterized in that The basic resource unit is at least one time slot or subframe, or a predefined fixed time length. The time length of a basic resource unit is an integer multiple of the time length of the minimum resource unit. M modulation symbols are generated or mapped in the basic resource unit, where M is a positive integer.

5. The method according to any one of claims 1 to 4, characterized in that: The first information includes first data or a first signal, and the method further includes: The communication device receives first resource indication information, where the first resource indicated by the first resource indication information is a resource of the first data; The communication device maps the first data according to the first resource; wherein the second resource occupied by the first signal is determined according to at least one of the following: an indication of second resource indication information, a time length of the first signal and a predefined channel structure.

6. The method according to any one of claims 1 to 4, characterized in that: The first information includes first data or a first signal, and the method further includes: The communication device receives third resource indication information, and the third resource indicated by the third resource indication information is the resource of the first data and the first signal; the communication device maps the first data and the first signal according to at least one of the following: the third resource, the time length of the first signal and the predefined channel structure.

7. The method according to any one of claims 1 to 6, characterized in that: The transmission of the first information is based on repetition, and the method further comprises: The communication device receives fourth resource indication information, where the fourth resource indicated by the fourth resource indication information is a resource for a single transmission of the first information; the communication device determines a resource for R repeated transmissions of the first information according to the fourth resource; or The communication device receives fifth resource indication information, where the fifth resource indicated by the fifth resource indication information is a resource that is repeatedly transmitted R times for the first information; R is a positive integer, and R is greater than 1.

8. The method according to claim 7, characterized in that The first information includes first data or a first signal; The fourth resource is a resource for a single transmission of the first data, and the second resource occupied by the first signal is determined according to at least one of the following: the second resource indication information indicates the time length of the first signal and a predefined channel structure; or The fourth resource is a resource for single transmission of the first data or the first signal.

9. The method according to any one of claims 1 to 8, characterized in that: The resource allocation of the first information is based on the basic resource unit as the granularity, and the basic resource unit is one of the following: an OFDM symbol, at least one time slot or subframe, a predefined fixed time length; or, The resource allocation of the first information is based on a granularity of a time slot, a subframe or a predefined fixed time length, and the basic resource unit is an OFDM symbol.

10. The method according to any one of claims 1 to 9, characterized in that: Before the communication device sends the first information, the method further includes: The communication device maps the first information to all resources of the allocated time resources; or, The communication device maps the first information to a subset resource of the allocated time resources, the subset resource being smaller than the allocated time resources.

11. The method according to claim 10, characterized in that The transmission of the first information is a single transmission, wherein, among the X basic resource units of the single transmission, no signal is generated or mapped in at least W minimum resource units among the first Y basic resource units or the last Z basic resource units; or, The transmission of the first information is based on repetition; wherein, in each repeated transmission of X basic resource units, no signal is generated or mapped in at least W minimum resource units of the first Y basic resource units or the last Z basic resource units; or, in multiple basic resource units of R repeated transmissions, no signal is generated or mapped in at least W minimum resource units of the first Y basic resource units or the last Z basic resource units; R, X, Y, Z, W are positive integers, and R is greater than 1.

12. The method according to claim 10 or 11, characterized in that: The length of the time resource in which the signal is not generated or mapped is obtained according to at least one of the following: Predefined; configured; determined according to a predefined or configured parameter value; determined according to the capability or type of the communication device.

13. The method according to any one of claims 1 to 12, characterized in that: The basic resource unit or signal mapping method used by the uplink transmission and downlink transmission of the communication device is the same; or, The basic resource units or signal mapping methods used in uplink transmission and downlink transmission of the communication device are different; or, The basic resource unit or signal mapping method used by different types of communication devices is the same; or, The basic resource units or signal mapping methods adopted by different types of communication devices are different.

14. An information transmission device, characterized in that: include: A transmission module, used for sending or receiving first information; A basic resource unit of the first information includes a first part and a second part, the time length of the first part is the same as the time length of the CP part of the OFDM symbol, and the time length of the second part is the same as the time length of the OFDM symbol excluding the CP part; or, the time length of the second part is an integer multiple of the time length of the minimum resource unit, and the part of the basic resource unit other than the second part is the first part; or, The time length of a basic resource unit of the first information is an integer multiple of the time length of a minimum resource unit.

15. The device according to claim 14, characterized in that One of the basic resource units includes a first part and a second part; wherein the first part and the second part satisfy one of the following: The second part generates or maps N modulation symbols, the first part does not generate or map any signal, the first part is located before or after the second part, and the length of each modulation symbol is the same; The second part generates or maps N modulation symbols, the first part generates or maps a first specific signal, the first part is located before or after the second part, and the length of each modulation symbol is the same; The second part generates or maps N modulation symbols, the first part generates or maps a second specific signal, the first part is located before the second part, and the length of each modulation symbol is the same; A time resource between the first part and the beginning of the second part generates or maps a modulation symbol, and a remaining time resource of the second part generates or maps N-1 modulation symbols, the first part is located before the second part, and the length of each modulation symbol in the N-1 modulation symbols is the same; The last time resource of the second part generates or maps one modulation symbol with the first part, and the remaining time resources of the second part generate or map N-1 modulation symbols, the first part is located after the second part, and the length of each modulation symbol in the N-1 modulation symbols is the same; The second part generates or maps N modulation symbols, the first part generates or maps predefined modulation symbols, the first part is located before or after the second part, and the length of each modulation symbol is the same; In the case where the basic resource unit is the first basic resource unit of a transmission, the first part does not generate or map any signal; in the case where the basic resource unit is not the first basic resource unit of a transmission, the first part generates or maps a third specific signal, and the first part is located before the second part; In the case where the basic resource unit is the last basic resource unit of a transmission, the first part does not generate or map any signal; in the case where the basic resource unit is not the last basic resource unit of a transmission, the first part generates or maps a fourth specific signal, and the first part is located after the second part; Among them, N is the maximum number of complete modulation symbols that can be mapped to the second part, N1 is the number of sampling points corresponding to the first part, and N and N1 are positive integers.

16. The device according to claim 15, characterized in that The first specific signal is the same as the signal, amplitude or level of the last N1 samples of the second part, or the same as the amplitude or level of the last modulation symbol of the second part; or, The second specific signal is the same as the signal, amplitude or level of the first N1 samples of the second part, or the same as the amplitude or level of the first modulation symbol of the second part; or, The third specific signal is the same as the signal, amplitude or level of the last N1 samples in the previous basic resource unit, or the same as the signal, amplitude or level of the last modulation symbol in the previous basic resource unit; or, The fourth specific signal is the same as the signal, amplitude or level of the last N1 samples in the basic resource unit, or the same as the signal, amplitude or level of the last modulation symbol in the basic resource unit, or the fourth specific signal is the same as the signal, amplitude or level of the first N1 samples of the next basic resource unit, or the same as the signal, amplitude or level of the first modulation symbol of the next basic resource unit.

17. The device according to claim 14, characterized in that The basic resource unit is at least one time slot or subframe, or a predefined fixed time length. The time length of a basic resource unit is an integer multiple of the time length of the minimum resource unit. M modulation symbols are generated or mapped in the basic resource unit, where M is a positive integer.

18. The device according to any one of claims 14 to 17, characterized in that The first information includes first data or a first signal, and the communication module is further used for: receiving first resource indication information, wherein the first resource indicated by the first resource indication information is a resource of the first data; mapping the first data according to the first resource; wherein the second resource occupied by the first signal is determined according to at least one of the following: an indication of the second resource indication information, a time length of the first signal, and a predefined channel structure; or, Receive third resource indication information, where the third resource indicated by the third resource indication information is a resource of the first data and the first signal; map the first data and the first signal according to at least one of the following: the third resource, the time length of the first signal, and a predefined channel structure.

19. The device according to any one of claims 14 to 18, characterized in that The transmission of the first information is based on repetition, and the communication module is further used for: receiving fourth resource indication information, where the fourth resource indicated by the fourth resource indication information is a resource for a single transmission of the first information; determining a resource for R repeated transmissions of the first information according to the fourth resource; or, receiving fifth resource indication information, where the fifth resource indicated by the fifth resource indication information is a resource that is repeatedly transmitted R times of the first information; R is a positive integer, and R is greater than 1.

20. The device according to any one of claims 14 to 19, characterized in that The resource allocation of the first information is based on the basic resource unit as the granularity, and the basic resource unit is one of the following: an OFDM symbol, at least one time slot or subframe, a predefined fixed time length; or, The resource allocation of the first information is based on a granularity of a time slot, a subframe or a predefined fixed time length, and the basic resource unit is an OFDM symbol.

21. The device according to any one of claims 14 to 20, characterized in that The communication module is also used for: Mapping the first information to all resources of the allocated time resources; or, The first information is mapped to a subset resource of the allocated time resources, where the subset resource is smaller than the allocated time resources.

22. The device according to any one of claims 14 to 21, characterized in that The basic resource unit or signal mapping method used in uplink transmission and downlink transmission of the device is the same; or, The basic resource units or signal mapping methods used in uplink transmission and downlink transmission of the device are different; or, The basic resource unit or signal mapping method used by different types of devices is the same; or, Different types of devices adopt different basic resource units or signal mapping methods.

23. A communication device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 13 are implemented.

24. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 13 are implemented.

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