WO2019210778A1 - 信息传输方法和信息传输装置 - Google Patents

信息传输方法和信息传输装置 Download PDF

Info

Publication number
WO2019210778A1
WO2019210778A1 PCT/CN2019/083257 CN2019083257W WO2019210778A1 WO 2019210778 A1 WO2019210778 A1 WO 2019210778A1 CN 2019083257 W CN2019083257 W CN 2019083257W WO 2019210778 A1 WO2019210778 A1 WO 2019210778A1
Authority
WO
WIPO (PCT)
Prior art keywords
length
time unit
cyclic prefix
symbol
equal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/083257
Other languages
English (en)
French (fr)
Inventor
高磊
刘德平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP19797046.0A priority Critical patent/EP3780467B1/en
Priority to CA3098616A priority patent/CA3098616A1/en
Publication of WO2019210778A1 publication Critical patent/WO2019210778A1/zh
Priority to US17/088,181 priority patent/US11665038B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H04L5/0083—Timing of allocation at predetermined intervals symbol-by-symbol
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Definitions

  • the present application relates to the field of communications, and in particular to an information transmission method and an information transmission apparatus in the field of communications.
  • Vehicle networking systems improves the safety and reliability of road traffic through communication between vehicles, vehicles, transportation facilities and pedestrians, and improves traffic efficiency.
  • Vehicle networking systems include communication between vehicle-to-vehicle (V2V), communication between vehicle-to-infrastructure (V2I), and vehicle-to-pedestrian (V2P) Communication between, vehicle-to-network (V2N), etc.
  • V2V vehicle-to-vehicle
  • V2I vehicle-to-infrastructure
  • V2P vehicle-to-pedestrian
  • V2N vehicle-to-network
  • D2D Device-to-device
  • D2D direct-connect communication using network-allocated resources or self-selected resources is a way to exchange information between car-networking devices.
  • the Internet-connected devices may support more types of services through device-to-device direct communication, for example, fleet services, sensor information sharing services, etc. These services have higher requirements on the coverage distance of terminal equipment, and the coverage distance requirement is 700m or even 1000m.
  • 5G it is necessary to support a higher frequency carrier and a larger bandwidth than in a long term evolution (LTE) system.
  • LTE long term evolution
  • SCS subcarrier spacing
  • CP cyclic prefix
  • CP cyclic prefix
  • the present application provides an information transmission method and an information transmission apparatus capable of not changing a symbol boundary position for decoding data while ensuring data transmission between devices to devices.
  • an information transmission method including: a first terminal device mapping first information to a first time unit and a second time unit; the first terminal device in the first time unit and the Transmitting the first information on a second time unit; wherein the first time unit and the second time unit are continuous, and the first time unit is before the second time unit, the first time
  • the unit includes a first symbol including a first cyclic prefix, the first symbol is a first symbol used by the first terminal device to transmit the first information, and the second time unit includes at least one second a second symbol of the cyclic prefix, and a length of the first cyclic prefix is greater than a length of the second cyclic prefix, the length of the first time unit being equal to the second cycle of the N second time units
  • the length of the second symbol of the prefix, N is an integer greater than or equal to 2.
  • the length of the first time unit is equal to N times the length of the second symbol including the second CP
  • the first symbol may be referred to as a special symbol
  • the first CP may be referred to as a special CP or a special long CP.
  • the second symbol may be a common symbol defined in an existing protocol, and the second CP is a normal CP (including NCP and ECP) defined in the existing protocol, such that the length of the first time unit is equal to an integer number of ordinary ones including the ordinary CP.
  • the length of the symbol ensures that the symbol boundary position used to decode the data is consistent with the specifications of the existing protocol, thereby avoiding further complications, in which case the transmitter and receiver can partially reuse the existing design.
  • the first symbol of the data transmission is set to include a special cyclic prefix longer than the normal cyclic prefix, and the length of the first time unit to which the first symbol belongs is a common one including the normal cyclic prefix.
  • An integer multiple of the length of the symbol enables the symbol boundary position for decoding data in the second time unit to be unchanged while ensuring data transfer between the devices.
  • the present application does not limit the number of symbols included in the first time unit, that is, the foregoing first time unit may include a first symbol (ie, the first symbol) used to transmit the first information, and may also include Other symbols. Specifically, other symbols included in the first time unit may also include the first cyclic prefix. When the number of symbols included in the first time unit is 1, it is possible to ensure that all the symbol boundary positions for decoding data in the current data transmission are not changed while ensuring data transmission between the devices.
  • the second terminal device as the receiving end can implement frequency synchronization by using a feature in the first CP that is not affected by the automatic gain control AGC and the first symbol ending portion sequence.
  • the first information is a reference signal and/or data
  • the first terminal device maps the first information to the first time unit and the second time unit, including: the first terminal The device maps the reference signal to all or a portion of the resource elements of the first time unit.
  • all or part of the resources of the first symbol may be mapped to the reference signal, such that, since the first symbol included in the first symbol is longer than the second CP included in the second symbol, the second terminal device has a receiving timing deviation greater than that of the second CP.
  • time synchronization can be achieved with a reference signal mapped to the first symbol.
  • the first time unit further includes a guard interval, and the guard interval is located at a start position of the first time unit.
  • the guard interval can be used to prevent inter-symbol interference ISI of signals transmitted from two different terminal devices in adjacent time units.
  • different terminal devices respectively transmit signals in adjacent time units, and the timings at which the receiving terminal devices arrive are different.
  • the second terminal device receives the timing in which the previous transmission signal is later than the subsequent timing, the second terminal device receives the two transmissions from the time domain.
  • the signals will partially overlap and the signals in the overlapping portions will interfere with each other. Therefore, the two signals do not overlap when a certain length of time (i.e., guard interval GP) is reserved for each transmission start and/or end position.
  • guard interval GP guard interval
  • the GP may be located at a starting position of one data transmission. Since the first terminal device as the transmitting end of each transmission needs to perform power adjustment, and the second terminal device as the receiving end needs to perform automatic gain control AGC, these usually cause the second terminal device to exceed the second CP (ie, the normal CP).
  • the time domain sequence of the length is not identifiable. Therefore, the portion of the first symbol of the beginning of a transmission cannot be used for demodulation and decoding even if the data or reference signal is mapped. Placing the GP at the beginning of a data transmission does not waste the symbols that the second terminal device can use to decode the data.
  • the present application does not limit the location of the guard interval.
  • the second time unit includes a guard interval, and the guard interval may be located at an end position of the second time unit. This example does not limit this.
  • the start position of the first time unit and the end position of the second time unit may both include a guard interval, and the length of the guard interval in the first time unit and the length of the guard interval in the second time unit in the embodiment of the present application. Not limited.
  • the length of the guard interval is protocol-agreeted, network device configured, or pre-configured.
  • the length of the guard interval is greater than a maximum timing offset equal to twice the coverage distance supported by the first terminal device divided by the speed of light.
  • the lengths of the GPs may be designed to different values according to the design goals of the different coverage distances, which is not limited by the embodiment of the present application.
  • the length of the GP is greater than 2 times the terminal coverage distance requirement divided by the speed of light. For example, when the coverage distance requirement is 1000 m, the length of the GP is greater than 6.67 us; when the coverage distance requirement is 700 m, the length of the GP is greater than 4.67 us.
  • the length of the guard interval is greater than the transition time of the terminal device from the receive mode to the transmit mode and/or the transition time of the terminal device from the transmit mode to the receive mode.
  • the transceiving conversion time of the terminal device includes the conversion time of the terminal device from the receiving mode to the transmitting mode and the switching time of the terminal device from the transmitting mode to the receiving mode.
  • the terminal device can complete the transceiving conversion in the GP, thereby completely transmitting and receiving the corresponding signal.
  • the length of the guard interval is greater than a sum of a transition time of the terminal device from the receiving mode to the transmitting mode and a maximum timing offset, or
  • the length of the guard interval is greater than a sum of a transition time of the terminal device from the transmit mode to the receive mode and the maximum timing offset;
  • the maximum timing offset is equal to twice the coverage distance supported by the first terminal device divided by the speed of light.
  • the second cyclic prefix is configured as a regular cyclic prefix
  • the length of the guard interval is equal to the length of the regular cyclic prefix
  • the length of the first cyclic prefix is equal to a portion of the first symbol other than the first cyclic prefix The sum of the length and the regular cyclic prefix; or
  • the length of the guard interval is equal to twice the length of the regular cyclic prefix, and the length of the first cyclic prefix is equal to the first symbol except the first cyclic prefix.
  • the length of the guard interval is equal to 4 times the length of the regular cyclic prefix
  • the length of the first cyclic prefix is equal to the first symbol except the first cyclic prefix.
  • the length of the portion is subtracted by 2 times the length of the regular cyclic prefix.
  • the first time unit further includes a first sequence, and the first sequence is located before the first cyclic prefix, the first sequence is protocol-defined, network device configured or Pre-configured.
  • the foregoing first time unit further includes a sequence, which is located before the first CP, and is used by the second terminal device to perform AGC power statistics.
  • the sequence may be a time-domain constant power sequence, or may be a short-period sequence, or may be other types of sequences, which is not limited in this embodiment of the present application.
  • the time domain constant power sequence is a sequence having the same modulus value for each complex point corresponding to each sample in the time domain
  • the short period sequence is a sequence having a period shorter than the first CP length.
  • the AGC can be decomposed into two phases: power statistics and gain adjustment.
  • the power statistics phase needs to estimate the average power of the received signal. Therefore, using a specific sequence can speed up the estimation of the average power of the second terminal device.
  • the order in the first time unit is GP, sequence, and first CP.
  • the information transmission method in the embodiment of the present application may not change the symbol boundary position used for decoding data, waste the symbols that the receiving side terminal device can use to decode data, and solve the ISI problem and frequency synchronization between adjacent TTIs. Problems, potential time synchronization issues, and improved system performance.
  • another information transmission method including: a second terminal device receiving first information on a first time unit and a second time unit; and the second terminal device performing demapping processing to obtain the first a message; wherein the first time unit and the second time unit are consecutive, and the first time unit is before the second time unit, the first time unit includes a first cycle prefix a symbol, the first symbol is a first symbol used by the first terminal device to transmit the first information, and the second time unit includes at least one second symbol including a second cyclic prefix, and The length of the first cyclic prefix is greater than the length of the second cyclic prefix, and the length of the first time unit is equal to the length of the second symbol of the N second time units including the second cyclic prefix , N is an integer greater than or equal to 2.
  • the first time unit further includes a guard interval, and the guard interval is located at a start position of the first time unit.
  • the length of the guard interval is protocol-agreeted, network device configured, or pre-configured.
  • the second cyclic prefix is configured as a regular cyclic prefix
  • the length of the guard interval is equal to the length of the regular cyclic prefix
  • the length of the first cyclic prefix is equal to a portion of the first symbol other than the first cyclic prefix The sum of the length and the regular cyclic prefix; or
  • the length of the guard interval is equal to twice the length of the regular cyclic prefix, and the length of the first cyclic prefix is equal to the first symbol except the first cyclic prefix.
  • the length of the guard interval is equal to 4 times the length of the regular cyclic prefix
  • the length of the first cyclic prefix is equal to the first symbol except the first cyclic prefix.
  • the length of the portion is subtracted by 2 times the length of the regular cyclic prefix.
  • the first time unit further includes a first sequence, and the first sequence is located before the first cyclic prefix, the first sequence is protocol-defined, network device configured or Pre-configured.
  • an information transmission apparatus for performing the method of the first aspect or any possible implementation of the first aspect.
  • the apparatus comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • the apparatus comprises means for performing the method of any of the possible implementations of the second aspect or the second aspect described above.
  • the terminal apparatus comprising: a transceiver, a memory, and a processor.
  • the transceiver, the memory and the processor are in communication with each other via an internal connection path for storing instructions for executing instructions stored in the memory to control the receiver to receive signals and to control the transmitter to transmit signals
  • the processor executes the instructions stored by the memory, the executing causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect.
  • the terminal apparatus comprising: a transceiver, a memory, and a processor.
  • the transceiver, the memory and the processor are in communication with each other via an internal connection path for storing instructions for executing instructions stored in the memory to control the receiver to receive signals and to control the transmitter to transmit signals
  • the processor executes the instructions stored by the memory, the executing causes the processor to perform the method of any of the possible implementations of the second aspect or the second aspect.
  • a computer program product comprising: computer program code, when the computer program code is executed by a computing device, causing the computing device to perform any of the possible implementations of the various aspects described above Methods.
  • a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of any of the possible implementations of the various aspects described above.
  • a chip system comprising: a processor for calling and running a computer program from a memory, such that the device in which the chip system is installed performs the method in any of the possible implementations of the various aspects described above.
  • FIG. 1 shows a schematic diagram of a communication system of an embodiment of the present application.
  • FIG. 2 shows a schematic flow chart of an information transmission method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram showing the structure of a physical layer used for information transmission according to an embodiment of the present application.
  • FIG. 4 shows a schematic block diagram of an information transmission device according to an embodiment of the present application.
  • FIG. 5 shows a schematic block diagram of another information transmission device according to an embodiment of the present application.
  • FIG. 6 shows a schematic block diagram of another information transmission device according to an embodiment of the present application.
  • FIG. 7 shows a schematic block diagram of another information transmission device according to an embodiment of the present application.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD LTE frequency division duplex
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • FIG. 1 shows a communication system 100 to which an embodiment of the present application is applied.
  • the communication system 100 can include a first terminal device 110 and a second terminal device 120.
  • the first terminal device 110 and the second terminal device 120 may be mobile or fixed access terminals, user equipment (UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, Mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication.
  • PLMN public land mobile network
  • Direct communication may be performed between the first terminal device 110 and the second terminal device 120.
  • the above communication system 100 may be a D2D communication system, which is a technology that supports direct data communication between a terminal device and a terminal device using a dedicated air interface technology. D2D communication allows terminal devices to communicate directly by multiplexing cell resources, which can solve the problem of lack of spectrum resources in wireless communication systems.
  • the foregoing communication system 100 may be a V2V communication system, a V2I communication system, a V2P communication system, or the like, which is not limited by the embodiment of the present application.
  • the foregoing communication system 100 may further include at least one network device 130, which may be a device that communicates with the first terminal device 110 and the second terminal device 120, such as a base station or a base station controller.
  • Each network device 130 can provide communication coverage for a particular geographic area and can communicate with terminal devices (e.g., UEs) located within the coverage area (cell).
  • the at least one network device 130 may be a base transceiver station (BTS) in a GSM system or a code division multiple access (CDMA) system, or may be a base station (NodeB, NB) in a WCDMA system.
  • BTS base transceiver station
  • CDMA code division multiple access
  • NodeB, NB base station
  • It may be an evolved base station (eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (CRAN), or the network device may be a relay station or an access A point, an in-vehicle device, a wearable device, a network side device in a future 5G network, or a network device in a public land mobile network (PLMN) that is evolving in the future.
  • eNB evolved base station
  • CRAN cloud radio access network
  • PLMN public land mobile network
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and may include other numbers of terminal devices within the coverage of each network device. The embodiment does not limit this.
  • the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.
  • network entities such as a network controller, a mobility management entity, and the like.
  • the embodiment of the present application is not limited thereto.
  • the inter-symbol interference (ISI) problem is as follows: UE1 and UE3 are two transmitting UEs, and send data to UE2 in two adjacent transmission time intervals (TTIs). Due to the timing difference between UE1 and UE3 and the different transmission delays of two transmissions, the two transmission timings received by UE2 are different. This causes the previous TTI timing to be later than the next TTI timing. At this point, it can be considered that there is an ISI between the first symbol of the next TTI and the last symbol of the previous TTI.
  • TTI transmission time interval
  • V2X communication systems (for example, V2V, V2I, V2P, etc.) support a relative speed of 500 km/h between terminal devices, and the carrier frequency is generally higher than that of uplink and downlink communication. Therefore, the frequency offset of the signal received by the terminal device is high, and frequency synchronization is required.
  • Time synchronization problem In order to achieve better link performance under larger Doppler spread and frequency synchronization error, in 5G, it can be considered in long term evolution (LTE) systems.
  • LTE subcarrier spacing
  • CP cyclic prefix
  • Table 1 shows the combination of partial SCS and CP length supported by the current standard. As shown in Table 1, in LTE, if the SCS adopts 15 kHz, the length of the normal cyclic prefix (NCP) is 4.7 us. If SCS greater than 15kHZ is used, the length of the NCP will be shortened. Wherein, if the SCS adopts 60 kHZ, the length of the extended cyclic prefix (ECP) is 4.2 us. For the NCP case, the CP of the first symbol after each 0.5 ms boundary uses the length in parentheses.
  • the coverage distance of the V2X communication system in 5G is required to reach 700m or even 1000m (the demand for the V2X communication system in LTE is 320m), so that the maximum reception timing deviation will increase.
  • the receive timing offset and delay spread may be greater than the CP described above.
  • the terminal device as the receiving end needs to perform time synchronization on each received signal in order to receive correctly (including demodulation and decoding).
  • FIG. 2 shows a schematic flowchart 200 of an information transmission method according to an embodiment of the present application.
  • the method 200 can be applied to the communication system 100 shown in FIG. 1, but the embodiment of the present application is not limited thereto.
  • the first terminal device maps the first information to the first time unit and the second time unit.
  • the first terminal device sends the first information on the first time unit and the second time unit, and correspondingly, the second terminal device is in the first time unit and the second Receiving the first information on a time unit;
  • the second terminal device performs demapping processing to acquire the first information.
  • the first time unit and the second time unit are consecutive, and the first time unit is before the second time unit, the first time unit includes a first symbol including a first cyclic prefix, The first symbol is a first symbol used by the first terminal device to transmit the first information, and the second time unit includes at least one second symbol including a second cyclic prefix, and the first symbol
  • the length of the cyclic prefix is greater than the length of the second cyclic prefix, and the length of the first time unit is equal to the length of the second symbol of the N second time units including the second cyclic prefix, where N is An integer greater than or equal to 2.
  • the first terminal device may map the first information to the first time unit and the second time unit, and send the first information to the second terminal device at the first time unit and the second time unit.
  • FIG. 3 is a schematic diagram of a physical layer structure used by the first terminal device and the second terminal device for performing the current data transmission.
  • the first time unit and the second time unit are two consecutive time units, and the first time unit is located before the second time unit, the first time unit includes a first symbol, and the first symbol includes a first cyclic prefix. (cyclic prefix, CP), the second time unit includes at least one second symbol, each second symbol of the at least one second symbol includes a second CP, and the length of the first CP is greater than that of the second CP length.
  • CP cyclic prefix
  • the second time unit includes at least one second symbol, each second symbol of the at least one second symbol includes a second CP, and the length of the first CP is greater than that of the second CP length.
  • the first symbol is the first symbol of the
  • the length of the first time unit is equal to N times the length of the second symbol including the second CP
  • the first symbol may be referred to as a special symbol
  • the first CP may be referred to as a special CP or a special long CP.
  • the second symbol may be a common symbol defined in an existing protocol, and the second CP is a normal CP (including NCP and ECP) defined in the existing protocol, such that the length of the first time unit is equal to an integer number of ordinary ones including the ordinary CP.
  • the length of the symbol ensures that the symbol boundary position used to decode the data is consistent with the specifications of the existing protocol, thereby avoiding further complications, in which case the transmitter and receiver can partially reuse the existing design.
  • the first symbol of the data transmission is set to include a special cyclic prefix longer than the normal cyclic prefix, and the length of the first time unit to which the first symbol belongs is a common one including the normal cyclic prefix.
  • An integer multiple of the length of the symbol enables the symbol boundary position for decoding data in the second time unit to be unchanged while ensuring data transfer between the devices.
  • the present application does not limit the number of symbols included in the first time unit, that is, the foregoing first time unit may include a first symbol (ie, the first symbol) used to transmit the first information, and may also include Other symbols.
  • the other symbols included in the first time unit may also include a first cyclic prefix.
  • the length of the first cyclic prefix in the multiple other symbols may be greater than the length of the second cyclic prefix in the second symbol. .
  • the second terminal device as the receiving end can implement frequency synchronization by using a feature in the first CP that is not affected by the automatic gain control (AGC) and the sequence of the first symbol ending portion.
  • AGC automatic gain control
  • the length of the first time unit is equal to the length of the N second symbols containing ECP; if the second symbol in the second time unit uses NCP, then The length of a time unit is equal to the length of the N second symbols containing NCP.
  • the symbols containing NCP actually have two lengths.
  • the longer ones are longer symbols in the NCP-containing symbols, and the shorter ones are shorter symbols in the NCP-containing symbols.
  • the length of the first time unit is equal to the length of the longer symbol in the NCP-containing symbol and N. - the sum of the lengths of the shorter symbols in the NCP-containing symbols; otherwise, the length of the first time unit is equal to the length of the shorter symbols in the N NCP-containing symbols.
  • the first information is a reference signal and/or data
  • the data may include control signaling and/or service data
  • the first terminal device maps the first information to the first time.
  • the unit and the second time unit including:
  • the first terminal device maps the reference signal to all or part of resource elements of the first time unit.
  • all or part of the resources of the first symbol may be mapped to the reference signal, such that, since the first symbol included in the first symbol is longer than the second CP included in the second symbol, the second terminal device has a receiving timing deviation greater than that of the second CP.
  • time synchronization can be achieved with a reference signal mapped to the first symbol.
  • the first time unit further includes a guard interval, and the guard interval is located at a start position of the first time unit.
  • the guard interval can be used to prevent inter-symbol interference ISI of signals transmitted from two different terminal devices in adjacent time units.
  • different terminal devices respectively transmit signals in adjacent time units, and the timings at which the receiving terminal devices arrive are different.
  • the second terminal device receives the timing in which the previous transmission signal is later than the subsequent timing, the second terminal device receives the two transmissions from the time domain.
  • the signals will partially overlap and the signals in the overlapping portions will interfere with each other. Therefore, the two signals do not overlap when a certain length of time (i.e., guard interval GP) is reserved for each transmission start and/or end position.
  • guard interval GP guard interval
  • the guard period may be located at the beginning of one data transmission.
  • the GP On the side-line dedicated carrier, if the GP is greater than the maximum timing deviation, the ISI problem of the adjacent TTI can be solved. Since the first terminal device as the transmitting end of each transmission needs to perform power adjustment, and the second terminal device as the receiving end needs to perform automatic gain control (AGC), these usually cause the second terminal device to exceed the second.
  • AGC automatic gain control
  • the portion of the first symbol of the beginning of a transmission cannot be used for demodulation and decoding even if the data or reference signal is mapped. Placing the GP at the beginning of a data transmission does not waste the symbols that the second terminal device can use to decode the data.
  • the sum of the length of the GP and the length of the first symbol is the length of the first time unit, that is, the sum of the lengths of the GP and the first symbol is equal to the N second symbols. length.
  • the present application does not limit the location of the guard interval.
  • the second time unit includes a guard interval, and the guard interval may be located at the end of the second time unit.
  • the embodiment does not limit this.
  • the start position of the first time unit and the end position of the second time unit may both include a guard interval, and the length of the guard interval in the first time unit and the length of the guard interval in the second time unit in the embodiment of the present application. Not limited.
  • the length of the guard interval may be protocol-agreeted, network device configured, or pre-configured.
  • the length of the guard interval is greater than a maximum timing offset, which is equal to twice the coverage distance supported by the first terminal device divided by the speed of light.
  • the lengths of the GPs may be designed to different values according to the design goals of the different coverage distances, which is not limited by the embodiment of the present application.
  • the length of the GP is greater than 2 times the terminal coverage distance requirement divided by the speed of light. For example, when the coverage distance requirement is 1000 m, the length of the GP is greater than 6.67 us; when the coverage distance requirement is 700 m, the length of the GP is greater than 4.67 us.
  • the length of the guard interval is greater than a transition time of the terminal device from the receiving mode to the transmitting mode and/or a switching time of the terminal device from the sending mode to the receiving mode.
  • the transceiving conversion time of the terminal device includes the conversion time of the terminal device from the receiving mode to the transmitting mode and the switching time of the terminal device from the transmitting mode to the receiving mode.
  • the terminal device can complete the transceiving conversion in the GP, thereby completely transmitting and receiving the corresponding signal.
  • the length of the guard interval is greater than a sum of a transition time of the terminal device from the receiving mode to the transmitting mode and a maximum timing offset, or
  • the length of the guard interval is greater than a sum of a transition time of the terminal device from the transmit mode to the receive mode and the maximum timing offset;
  • the maximum timing offset is equal to twice the coverage distance supported by the first terminal device divided by the speed of light.
  • the length of the guard interval is equal to the length of the regular cyclic prefix
  • the length of the first cyclic prefix is equal to the sum of the length of the portion of the first symbol other than the first cyclic prefix and the regular cyclic prefix; or the length of the guard interval when the subcarrier spacing is 30 kHz
  • the length of the guard interval is equal to 4 times the length of the regular cyclic prefix
  • the length of the first cyclic prefix is equal to the length of the portion of the first symbol other than the first cyclic prefix minus the length
  • the length of the regular cyclic prefix is 2 times.
  • the lengths of the GP and the first CP under various SCSs may be implemented in any of the following three situations:
  • the length of the first time unit is twice the length of the second symbol including the second CP.
  • the first time unit further includes a first sequence, and the first sequence is located before the first cyclic prefix, and the first sequence is protocol-defined, network device configured or Pre-configured.
  • the foregoing first time unit further includes a sequence, which is located before the first CP, and is used by the second terminal device to perform AGC power statistics.
  • the sequence may be a time-domain constant power sequence, or may be a short-period sequence, or may be other types of sequences, which is not limited in this embodiment of the present application.
  • the time domain constant power sequence is a sequence having the same modulus value for each complex point corresponding to each sample in the time domain
  • the short period sequence is a sequence having a period shorter than the first CP length.
  • the AGC can be decomposed into two phases: power statistics and gain adjustment.
  • the power statistics phase needs to estimate the average power of the received signals. Therefore, using a specific sequence can speed up the estimation of the average power by the second terminal device.
  • the order in the first time unit is GP, sequence, and first CP.
  • the sum of the length of the GP and the length of the first symbol (including the sequence and the first CP) is the length of the first time unit, ie the sum of the lengths of the GP and the first symbol is equal to the length of the N second symbols.
  • the information transmission method in the embodiment of the present application may not change the symbol boundary position used for decoding data, waste the symbols that the receiving side terminal device can use to decode data, and solve the ISI problem and frequency synchronization between adjacent TTIs. Problems, potential time synchronization issues, and improved system performance.
  • the information transmission method according to the embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 3.
  • the information transmission apparatus according to the embodiment of the present application will be described in detail below with reference to FIG. 4 to FIG.
  • FIG. 4 shows an information transmission device 400 provided by an embodiment of the present application.
  • the device 400 includes:
  • the processing unit 410 is configured to map the first information to the first time unit and the second time unit;
  • the transceiver unit 420 is configured to send the first information on the first time unit and the second time unit;
  • the first time unit and the second time unit are consecutive, and the first time unit is before the second time unit, the first time unit includes a first symbol including a first cyclic prefix, The first symbol is a first symbol used by the apparatus to transmit the first information, and the second time unit includes at least one second symbol including a second cyclic prefix, and the first cyclic prefix
  • the length is greater than the length of the second cyclic prefix, the length of the first time unit is equal to the length of the second symbol of the N second time units including the second cyclic prefix, and N is greater than or equal to An integer of 2.
  • the first symbol of the data transmission is set to include a special cyclic prefix longer than the normal cyclic prefix, and the length of the first time unit to which the first symbol belongs is a common one including the normal cyclic prefix.
  • An integer multiple of the length of the symbol enables the symbol boundary position for decoding data in the second time unit to be unchanged while ensuring data transfer between the devices.
  • the first information is a reference signal and/or data
  • the processing unit 410 is specifically configured to: map the reference signal to all or part of resource elements of the first time unit.
  • the first time unit further includes a guard interval, and the guard interval is located at a start position of the first time unit.
  • the length of the guard interval is protocol-defined, network device configured, or pre-configured.
  • the second cyclic prefix is configured as a regular cyclic prefix
  • the length of the guard interval is equal to the length of the regular cyclic prefix
  • the length of the first cyclic prefix is equal to a portion of the first symbol other than the first cyclic prefix The sum of the length and the regular cyclic prefix; or
  • the length of the guard interval is equal to twice the length of the regular cyclic prefix, and the length of the first cyclic prefix is equal to the first symbol except the first cyclic prefix.
  • the length of the guard interval is equal to 4 times the length of the regular cyclic prefix
  • the length of the first cyclic prefix is equal to the first symbol except the first cyclic prefix.
  • the length of the portion is subtracted by 2 times the length of the regular cyclic prefix.
  • the first time unit further includes a first sequence, and the first sequence is located before the first cyclic prefix, and the first sequence is protocol-defined, network device configured or pre-configured.
  • the apparatus 400 herein is embodied in the form of a functional unit.
  • the term "unit” as used herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (eg, a shared processor, a proprietary processor, or a group) for executing one or more software or firmware programs. Processors, etc.) and memory, merge logic, and/or other suitable components that support the described functionality.
  • ASIC application specific integrated circuit
  • the device 400 may be specifically the first terminal device in the foregoing embodiment, and the device 400 may be used to perform various processes corresponding to the first terminal device in the foregoing method embodiment. / or steps, in order to avoid repetition, will not repeat them here.
  • the device 400 has the function of implementing the corresponding steps performed by the first terminal device in the above method; the function may be implemented by hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions; for example, the transmitting unit may be replaced by a transmitter, the receiving unit may be replaced by a receiver, and other units such as a determining unit may be replaced by a processor and executed separately Transceiver operations and associated processing operations in various method embodiments.
  • the device in FIG. 4 may also be a chip or chip system, for example, a system on chip (SoC).
  • the transceiver unit may be a transceiver circuit of the chip, which is not limited herein.
  • FIG. 5 shows an information transmission device 500 provided by an embodiment of the present application.
  • the device 500 includes:
  • the transceiver unit 510 is configured to receive first information on the first time unit and the second time unit;
  • the processing unit 520 is configured to perform demapping processing to acquire the first information.
  • the first time unit and the second time unit are consecutive, and the first time unit is before the second time unit, the first time unit includes a first symbol including a first cyclic prefix, The first symbol is a first symbol used by the first terminal device to transmit the first information, and the second time unit includes at least one second symbol including a second cyclic prefix, and the first symbol
  • the length of the cyclic prefix is greater than the length of the second cyclic prefix, and the length of the first time unit is equal to the length of the second symbol of the N second time units including the second cyclic prefix, where N is An integer greater than or equal to 2.
  • the first symbol of the data transmission is set to include a special cyclic prefix longer than the normal cyclic prefix, and the length of the first time unit to which the first symbol belongs is a common one including the normal cyclic prefix.
  • An integer multiple of the length of the symbol enables the symbol boundary position for decoding data in the second time unit to be unchanged while ensuring data transfer between the devices.
  • the first time unit further includes a guard interval, and the guard interval is located at a start position of the first time unit.
  • the length of the guard interval is protocol-defined, network device configured, or pre-configured.
  • the second cyclic prefix is configured as a regular cyclic prefix
  • the length of the guard interval is equal to the length of the regular cyclic prefix
  • the length of the first cyclic prefix is equal to a portion of the first symbol other than the first cyclic prefix The sum of the length and the regular cyclic prefix; or
  • the length of the guard interval is equal to twice the length of the regular cyclic prefix, and the length of the first cyclic prefix is equal to the first symbol except the first cyclic prefix.
  • the length of the guard interval is equal to 4 times the length of the regular cyclic prefix
  • the length of the first cyclic prefix is equal to the first symbol except the first cyclic prefix.
  • the length of the portion is subtracted by 2 times the length of the regular cyclic prefix.
  • the first time unit further includes a first sequence, and the first sequence is located before the first cyclic prefix, and the first sequence is protocol-defined, network device configured or pre-configured.
  • the apparatus 500 herein is embodied in the form of a functional unit.
  • the term "unit” as used herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (eg, a shared processor, a proprietary processor, or a group) for executing one or more software or firmware programs. Processors, etc.) and memory, merge logic, and/or other suitable components that support the described functionality.
  • ASIC application specific integrated circuit
  • the device 500 may be specifically the second terminal device in the foregoing embodiment, and the device 500 may be used to perform various processes corresponding to the second terminal device in the foregoing method embodiment. / or steps, in order to avoid repetition, will not repeat them here.
  • the foregoing apparatus 500 has a function of implementing corresponding steps performed by the second terminal device in the foregoing method; the function may be implemented by hardware, or may be implemented by hardware corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions; for example, the transmitting unit may be replaced by a transmitter, the receiving unit may be replaced by a receiver, and other units such as a determining unit may be replaced by a processor and executed separately Transceiver operations and associated processing operations in various method embodiments.
  • the device in FIG. 5 may also be a chip or chip system, for example, a system on chip (SoC).
  • the transceiver unit may be a transceiver circuit of the chip, which is not limited herein.
  • FIG. 6 shows another information transmission device 600 provided by an embodiment of the present application.
  • the apparatus 600 includes a processor 610, a transceiver 620, and a memory 630.
  • the processor 610, the transceiver 620, and the memory 630 are in communication with each other through an internal connection path.
  • the memory 630 is configured to store instructions, and the processor 610 is configured to execute instructions stored in the memory 630 to control the transceiver 620 to send signals and / or receive signals.
  • the processor 610 is configured to map the first information to the first time unit and the second time unit; and send, by the transceiver 620, the first information on the first time unit and the second time unit Wherein the first time unit and the second time unit are consecutive, and the first time unit is before the second time unit, the first time unit comprises a first symbol comprising a first cyclic prefix The first symbol is a first symbol used by the apparatus to transmit the first information, the second time unit includes at least one second symbol including a second cyclic prefix, and the first cyclic prefix The length of the first time unit is greater than the length of the second symbol of the N second time units including the second cyclic prefix, where N is greater than or An integer equal to 2.
  • the device 600 may be specifically the first terminal device in the foregoing embodiment, and may be used to perform various steps and/or processes corresponding to the first terminal device in the foregoing method embodiment.
  • the memory 630 can include read only memory and random access memory and provides instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the processor 610 can be configured to execute instructions stored in a memory, and when the processor 610 executes instructions stored in the memory, the processor 610 is configured to perform the various steps of the method embodiment corresponding to the first terminal device And / or process.
  • the memory 630 can include read only memory and random access memory and provides instructions and data to the processor.
  • a portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the processor 610 can be configured to execute instructions stored in a memory, and when the processor 610 executes instructions stored in the memory, the processor 610 is configured to perform the various steps of the method embodiment corresponding to the first terminal device described above and / or process.
  • FIG. 7 shows another information transmission apparatus 700 provided by an embodiment of the present application.
  • the apparatus 700 includes a processor 710, a transceiver 720, and a memory 730.
  • the processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path.
  • the memory 730 is configured to store instructions, and the processor 710 is configured to execute instructions stored in the memory 730 to control the transceiver 720 to send signals and / or receive signals.
  • the processor 710 is configured to receive first information by using the transceiver 720 on the first time unit and the second time unit; performing demapping processing to obtain the first information; wherein the first time unit and The second time unit is continuous, and the first time unit is before the second time unit, the first time unit includes a first symbol including a first cyclic prefix, and the first symbol is the first a first symbol used by the terminal device to transmit the first information, the second time unit includes at least one second symbol including a second cyclic prefix, and the length of the first cyclic prefix is greater than the second a length of the cyclic prefix, the length of the first time unit being equal to the length of the second symbol of the N second time units including the second cyclic prefix, and N being an integer greater than or equal to 2.
  • the device 700 may be specifically the second terminal device in the foregoing embodiment, and may be used to perform various steps and/or processes corresponding to the second terminal device in the foregoing method embodiment.
  • the memory 730 can include read only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the processor 710 can be configured to execute instructions stored in the memory, and when the processor 710 executes the instructions stored in the memory, the processor 710 is configured to perform the steps of the method embodiment corresponding to the second terminal device described above. And / or process.
  • the memory 730 can include read only memory and random access memory and provide instructions and data to the processor.
  • a portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the processor 710 can be configured to execute instructions stored in a memory, and when the processor 710 executes instructions stored in the memory, the processor 710 is configured to perform the various steps of the method embodiment corresponding to the second terminal device described above and / or process.
  • the transceiver described above can include a transmitter and a receiver.
  • the transceiver may further include an antenna, and the number of antennas may be one or more.
  • the memory can be a separate device or integrated into the processor.
  • the above various devices or parts of the device can be integrated into the chip for implementation, such as integration into a baseband chip.
  • the transceivers in FIG. 6 and FIG. 7 may also be communication interfaces, which are not limited herein.
  • the processor of the foregoing device may be a central processing unit (CPU), and the processor may also be another general-purpose processor, a digital signal processor (DSP). ), application specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software units in the processor.
  • the software unit can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in a memory, and the processor executes instructions in the memory, in combination with hardware to perform the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the available media can be magnetic media (eg, a floppy disk, a hard disk, Magnetic tape), optical medium (for example, DVD), or semiconductor medium (such as solid state disk (SSD)).
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present application may be in essence or part of the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请提供了一种信息传输方法和信息传输装置，该方法包括：第一终端设备将第一信息映射到第一时间单元和第二时间单元；所述第一终端设备在所述第一时间单元和所述第二时间单元上发送所述第一信息；其中，所述第一时间单元包括含第一循环前缀的第一符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度。本申请实施例的信息传输方法和信息传输装置，能够在保证设备到设备之间数据传输的同时，不改变用于解码数据的符号边界位置。

Description

信息传输方法和信息传输装置
本申请要求于2018年5月4日提交中国专利局、申请号为201810420187.9、申请名称为“信息传输方法和信息传输装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，特别涉及通信领域中的信息传输方法和信息传输装置。
背景技术
近年来，车联网技术越来越受到人们的关注。车联网系统通过车与车、交通设施、行人之间的通信提高道路交通的安全性、可靠性，提升交通通行效率。车联网系统包括车与车(vehicle-to-vehicle，V2V)之间的通信、车与基础设施(vehicle-to-infrastructure，V2I)之间的通信、车与人(vehicle-to-pedestrian，V2P)之间的通信、车与网络(vehicle-to-network，V2N)之间的通信等等。为了保证车辆安全行驶，车联网系统中的终端设备之间需要周期性的交互状态信息。使用网络分配的资源或自主选择的资源进行设备到设备(device-to-device，D2D)的直连通信是车联网设备之间交互信息的一种方式。
在第五代移动通信技术(5-generation，5G)中，车联网设备之间可能将通过设备到设备直连通信的方式支持更多类型的业务，例如，车队业务、传感器信息共享业务等，这些业务对终端设备的覆盖距离有着更高的要求，其中，覆盖距离要求达到700m甚至1000m。在5G中，需要支持比长期演进(long term evolution，LTE)系统中更高频率的载波以及更大的带宽，需要考虑更大的子载波间隔(subcarrier spacing，SCS)，则循环前缀(cyclic prefix，CP)长度会缩短。因此，如何保证设备到设备之间的直连通信，例如，V2V、V2I或V2P之间的直连通信等等，并不改变用于解码数据的符号边界位置，是一项亟待解决的技术问题。
发明内容
本申请提供了一种信息传输方法和信息传输装置，能够在保证设备到设备之间数据传输的同时，不改变用于解码数据的符号边界位置。
第一方面，提供了一种信息传输方法，包括：第一终端设备将第一信息映射到第一时间单元和第二时间单元；所述第一终端设备在所述第一时间单元和所述第二时间单元上发送所述第一信息；其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述第一终端设备传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的 所述第二符号的长度，N为大于或等于2的整数。
在本申请实施例中，第一时间单元的长度等于包括第二CP的第二符号的长度的N倍，第一符号可以称为特殊符号，第一CP可称为特殊CP或特殊的长CP，第二符号可以为现有协议中定义的普通符号，第二CP为现有协议中定义的普通CP(包括NCP和ECP)，这样，第一时间单元的长度等于整数个包含普通CP的普通符号的长度，可以保证用于解码数据的符号边界位置与现有协议的规定一致，从而避免进一步复杂化，在这种情况下，发射机和接收机可以部分重用已有的设计。
本申请实施例的信息传输方法，通过设置一次数据传输的第一个符号包括一个长于普通循环前缀的特殊循环前缀，且第一个符号所属的第一时间单元的长度为包括普通循环前缀的普通符号的长度的整数倍，能够在保证设备到设备之间数据传输的同时，不改变第二时间单元中用于解码数据的符号边界位置。
应理解，本申请并未限定第一时间单元所包括符号的个数，即上述第一时间单元可以包括传输第一信息所采用的第一个符号(即第一符号)之外，还可以包括其他符号。具体地，第一时间单元中包括的其他符号也可以包含第一循环前缀。当第一时间单元所包括符号的个数为1时，能够在保证设备到设备之间数据传输的同时，不改变本次数据传输中所有用于解码数据的符号边界位置。
此外，作为接收端的第二终端设备可以用第一CP中不受自动增益控制AGC影响的部分和第一符号结尾部分序列重复的特点，实现频率同步。
在一种可能的设计中，所述第一信息为参考信号和/或数据，所述第一终端设备将第一信息映射到第一时间单元和第二时间单元，包括：所述第一终端设备将所述参考信号映射到所述第一时间单元的全部或部分资源元素。
具体地，第一符号的全部或部分资源可以映射参考信号，这样，由于第一符号包括的第一CP长于第二符号包括的第二CP，第二终端设备在接收定时偏差大于第二CP的长度的情况下，可以利用映射到第一符号的参考信号实现时间同步。
在一种可能的设计中，所述第一时间单元还包括保护间隔，且所述保护间隔位于所述第一时间单元的起始位置。
保护间隔可以用于防止在相邻时间单元来自两个不同终端设备发送的信号的符号间干扰ISI。具体而言，不同终端设备在相邻的时间单元分别发送信号，到达接收终端设备的定时会有差异。以作为接收端的第二终端设备为例，若第二终端设备收到其中前一次传输信号的定时比后一次的定时晚，从时域上看，该第二终端设备收到的两次传输的信号就会有部分重叠，重叠部分的信号就会互相干扰。因此，在每次发送的起始和/或结尾位置保留一定长度的时间(即保护间隔GP)不发送任何信息，则上述两个信号就不会重叠了。
具体地，在本申请实施例中，GP可以位于一次数据传输的起始位置。由于每次传输的开头作为发送端的第一终端设备要做功率调整、作为接收端的第二终端设备需要做自动增益控制AGC，这些通常会导致在第二终端设备超过第二CP(即普通CP)的长度的时域序列不可识别。因此，一次传输的开始的第一个符号的部分即使映射数据或参考信号，也无法用于解调和解码。将GP放在一次数据传输的开头，不浪费第二终端设备可用于解码数据的符号。
应理解，本申请并不限定保护间隔的位置，在另一种可能的实现方式中，上述第二时 间单元包括保护间隔，且该保护间隔可以位于该第二时间单元的结尾位置，本申请实施例对此不作限定。还应理解，第一时间单元的起始位置和第二时间单元的结尾位置可以都包括保护间隔，本申请实施例对第一时间单元中保护间隔的长度和第二时间单元中保护间隔的长度不作限定。
在一种可能的设计中，所述保护间隔的长度是协议约定的、网络设备配置的或预配置的。
在一种可能的设计中，所述保护间隔的长度大于最大定时偏差，所述最大定时偏差等于所述第一终端设备所支持的覆盖距离的2倍除以光速。
具体地，对应不同覆盖距离的设计目标，GP的长度可以设计为不同的数值，本申请实施例对此不作限定。通常GP的长度大于2倍的终端设备覆盖距离需求除以光速。例如，覆盖距离需求为1000m时，GP的长度大于6.67us；覆盖距离需求为700m时，GP的长度大于4.67us。
在一种可能的设计中，所述保护间隔的长度大于终端设备从接收模式到发送模式的转换时间和/或终端设备从发送模式到接收模式的转换时间。
应理解，终端设备的收发转换时间包括终端设备从接收模式到发送模式的转换时间和终端设备从发送模式到接收模式的转换时间。当GP的长度大于终端设备的收发转换时间时，该终端设备能在GP内完成收发转换，从而完整的发送和接收对应的信号。
在一种可能的设计中，所述保护间隔的长度大于终端设备从接收模式到发送模式的转换时间与最大定时偏差之和，或
所述保护间隔的长度大于终端设备从发送模式到接收模式的转换时间与所述最大定时偏差之和；
其中，所述最大定时偏差等于所述第一终端设备所支持的覆盖距离的2倍除以光速。
在一种可能的设计中，在所述第二循环前缀被配置为常规循环前缀的情况下，
当子载波间隔为15kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度与所述常规循环前缀之和；或
当子载波间隔为30kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的2倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度；或
当子载波间隔为60kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的4倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度减去所述常规循环前缀的长度的2倍。
在一种可能的设计中，所述第一时间单元还包括第一序列，且所述第一序列位于所述第一循环前缀之前，所述第一序列是协议约定的、网络设备配置的或预配置的。
具体地，上述第一时间单元还包括一个序列，位于第一CP之前，用于第二终端设备进行AGC功率统计。可选地，该序列可以是时域恒功率序列，也可以是短周期序列，还可以是其他类型的序列，本申请实施例对此不作限定。其中，时域恒功率序列为时域每个样点对应的复数具有相同模值的序列，短周期序列为周期短于第一CP长度的序列。AGC可分解为功率统计和增益调整两个阶段，功率统计阶段需要估计收到信号的平均功率，因 此，使用特定的序列可以加快第二终端设备估计平均功率的速度。
应理解，在上述第一时间单元还包括序列的情况下，该第一时间单元中的顺序依次为GP、序列、第一CP。
综上，本申请实施例的信息传输方法，可以不改变用于解码数据的符号边界位置，不浪费接收侧终端设备可用于解码数据的符号，并解决相邻TTI之间的ISI问题、频率同步问题、潜在的时间同步问题，提高系统性能。
第二方面，提供了另一种信息传输方法，包括：第二终端设备在第一时间单元和第二时间单元上接收第一信息；所述第二终端设备进行解映射处理，获取所述第一信息；其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述第一终端设备传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度，N为大于或等于2的整数。
在一种可能的设计中，所述第一时间单元还包括保护间隔，且所述保护间隔位于所述第一时间单元的起始位置。
在一种可能的设计中，所述保护间隔的长度是协议约定的、网络设备配置的或预配置的。
在一种可能的设计中，在所述第二循环前缀被配置为常规循环前缀的情况下，
当子载波间隔为15kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度与所述常规循环前缀之和；或
当子载波间隔为30kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的2倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度；或
当子载波间隔为60kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的4倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度减去所述常规循环前缀的长度的2倍。
在一种可能的设计中，所述第一时间单元还包括第一序列，且所述第一序列位于所述第一循环前缀之前，所述第一序列是协议约定的、网络设备配置的或预配置的。
第三方面，提供了一种信息传输装置，用于执行第一方面或第一方面任意可能的实现方式中的方法。具体地，该装置包括用于执行上述第一方面或第一方面的任一种可能的实现方式中的方法的单元。
第四方面，提供了另一种信息传输装置，用于执行第二方面或第二方面任意可能的实现方式中的方法。具体地，该装置包括用于执行上述第二方面或第二方面的任一种可能的实现方式中的方法的单元。
第五方面，提供了另一种信息传输装置，该终端设备包括：收发器、存储器和处理器。其中，该收发器、该存储器和该处理器通过内部连接通路互相通信，该存储器用于存储指令，该处理器用于执行该存储器存储的指令，以控制接收器接收信号，并控制发送器发送 信号，并且当该处理器执行该存储器存储的指令时，该执行使得该处理器执行第一方面或第一方面的任一种可能的实现方式中的方法。
第六方面，提供了另一种信息传输装置，该终端设备包括：收发器、存储器和处理器。其中，该收发器、该存储器和该处理器通过内部连接通路互相通信，该存储器用于存储指令，该处理器用于执行该存储器存储的指令，以控制接收器接收信号，并控制发送器发送信号，并且当该处理器执行该存储器存储的指令时，该执行使得该处理器执行第二方面或第二方面的任一种可能的实现方式中的方法。
第七方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被计算设备运行时，使得所述计算设备执行上述各个方面的任意可能实现方式中的方法。
第八方面，提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行上述各个方面的任意可能的实现方式中的方法的指令。
第九方面，提供了一种芯片系统，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片系统的装置执行上述各个方面的任意可能的实现方式中的方法。
附图说明
图1示出了本申请实施例的通信系统的示意图。
图2示出了根据本申请实施例的信息传输方法的示意性流程图。
图3示出了根据本申请实施例进行信息传输所采用的物理层结构示意图。
图4示出了根据本申请实施例的信息传输装置的示意性框图。
图5示出了根据本申请实施例的另一信息传输装置的示意性框图。
图6示出了根据本申请实施例的另一信息传输装置的示意性框图。
图7示出了根据本申请实施例的另一信息传输装置的示意性框图。
具体实施方式
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)或全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统或未来的5G系统等。
图1示出了本申请实施例应用的通信系统100。该通信系统100可以包括第一终端设备110和第二终端设备120。该第一终端设备110和第二终端设备120可以是移动的或固定的接入终端、用户设备(user equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电 话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、未来5G网络中的终端设备或者未来演进的公共陆地移动网络(public land mobile network，PLMN)中的终端设备等。
上述第一终端设备110和第二终端设备120之间可以进行直连通信。应理解，上述通信系统100可以为D2D通信系统，D2D通信是一种支持终端设备和终端设备之间使用专用空中接口技术直接进行数据通信的技术。D2D通信允许终端设备之间通过复用小区资源直接进行通信，能够解决无线通信系统频谱资源匮乏的问题。可选地，上述通信系统100具体可以为V2V通信系统、V2I通信系统或V2P通信系统等等，本申请实施例对此不作限定。
可选地，上述通信系统100还可以包括至少一个网络设备130，该至少一个网络设备130可以是与第一终端设备110和第二终端设备120通信的设备，如基站或基站控制器等。每个网络设备130可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域(小区)内的终端设备(例如UE)进行通信。该至少一个网络设备130可以是GSM系统或码分多址(code division multiple access，CDMA)系统中的基站(base transceiver station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(cloud radio access network，CRAN)中的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备、未来5G网络中的网络侧设备或者未来演进的公共陆地移动网络(public land mobile network，PLMN)中的网络设备等。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例不限于此。
为便于理解，下面先介绍一下本申请实施例所涉及的相关术语。
符号间干扰(inter symbol interference，ISI)问题：以UE为例，UE1和UE3为两个发送UE，分别在相邻两个传输时间间隔(transmission time interval，TTI)发送数据给UE2。由于UE1和UE3的定时差异以及两次传输不同的传输时延，UE2收到的两次传输定时不同。这就会导致前一个TTI定时可能晚于后一个TTI定时，此时，就可以认为后一个TTI的第一个符号和前一个TTI的最后一个符号之间存在ISI。
频率同步问题：V2X通信系统(例如，V2V、V2I、V2P等)支持终端设备间的相对速度为500km/h，且载波频率一般比上下行通信更高。因此，终端设备收到信号的频偏较高，需要进行频率同步。
时间同步问题(潜在的)：为了在更大的多普勒扩展，且在频率同步误差下获得更好的链路性能，在5G中，可以考虑比长期演进(long term evolution，LTE)系统中更大的子载波间隔(subcarrier spacing，SCS)，则循环前缀(cyclic prefix，CP)长度会对应缩短。表一示出了目前标准支持的部分SCS和CP长度的组合，如表一所示，在LTE中，若SCS采用15kHz，则一般循环前缀(normal cyclic prefix，NCP)的长度为4.7us。若采 用大于15kHZ的SCS，那么NCP的长度会缩短。其中，若SCS采用60kHZ，扩展循环前缀(extend cyclic prefix，ECP)的长度为4.2us。对于NCP情况，在每个0.5ms边界之后的第一个符号的CP使用括号中的长度。
表一
SCS(对应不含CP的符号长度) NCP长度 ECP长度
15kHz(67us) 4.7us(5.2us) -
30kHz(33us) 2.3us(2.9us) -
60kHz(17us) 1.2us(1.7us) 4.2us
120kHz(8.3us) 0.59us(1.1us) -
240kHz(4.2us) 0.29us(0.81us) -
480kHz(2.1us) 0.15us(0.67us) -
5G中V2X通信系统的覆盖距离要求达到700m甚至1000m(LTE中的V2X通信系统的需求为320m)，这样，最大接收定时偏差会增大。接收定时偏差和时延扩展可能大于上述CP。此时作为接收端的终端设备需要对每次收到的信号先做时间同步，才能正确接收(包括解调和解码)。
图2示出了本申请实施例的信息传输方法的示意性流程图200。该方法200可以应用于图1所示的通信系统100，但本申请实施例不限于此。
S210，第一终端设备将第一信息映射到第一时间单元和第二时间单元；
S220，所述第一终端设备在所述第一时间单元和所述第二时间单元上发送所述第一信息，则对应地，第二终端设备在所述第一时间单元和所述第二时间单元上接收所述第一信息；
S230，所述第二终端设备进行解映射处理，获取所述第一信息；
其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述第一终端设备传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度，N为大于或等于2的整数。
具体地，第一终端设备可以将第一信息映射到第一时间单元和第二时间单元上，并且在该第一时间单元和该第二时间单元向第二终端设备发送该第一信息。图3为第一终端设备与第二终端设备进行本次数据传输所采用的物理层结构的示意图。其中，第一时间单元和第二时间单元为连续的两个时间单元，且第一时间单元位于第二时间单元之前，该第一时间单元包括第一符号，该第一符号包含第一循环前缀(cyclic prefix，CP)，该第二时间单元包括至少一个第二符号，该至少一个第二符号中的每个第二符号包括第二CP，且该第一CP的长度大于该第二CP的长度。应理解，上述第一符号为本次数据传输所采用的物理层结构的第一个符号，位于上述物理层结构的最前面，第二符号为后续其他普通符号。
在本申请实施例中，第一时间单元的长度等于包括第二CP的第二符号的长度的N倍， 第一符号可以称为特殊符号，第一CP可称为特殊CP或特殊的长CP，第二符号可以为现有协议中定义的普通符号，第二CP为现有协议中定义的普通CP(包括NCP和ECP)，这样，第一时间单元的长度等于整数个包含普通CP的普通符号的长度，可以保证用于解码数据的符号边界位置与现有协议的规定一致，从而避免进一步复杂化，在这种情况下，发射机和接收机可以部分重用已有的设计。
本申请实施例的信息传输方法，通过设置一次数据传输的第一个符号包括一个长于普通循环前缀的特殊循环前缀，且第一个符号所属的第一时间单元的长度为包括普通循环前缀的普通符号的长度的整数倍，能够在保证设备到设备之间数据传输的同时，不改变第二时间单元中用于解码数据的符号边界位置。
应理解，本申请并未限定第一时间单元所包括符号的个数，即上述第一时间单元可以包括传输第一信息所采用的第一个符号(即第一符号)之外，还可以包括其他符号。具体地，第一时间单元中包括的其他符号也可以包含第一循环前缀，此时，该多个其他符号中的第一循环前缀的长度可以均大于第二符号中的第二循环前缀的长度。当第一时间单元所包括符号的个数为1时，能够在保证设备到设备之间数据传输的同时，不改变本次数据传输中所有用于解码数据的符号边界位置。
此外，作为接收端的第二终端设备可以用第一CP中不受自动增益控制(automatic gain control，AGC)影响的部分和第一符号结尾部分序列重复的特点，实现频率同步。
应理解，若第二时间单元中的第二符号使用ECP，则第一时间单元的长度等于N个含ECP的第二符号的长度；若第二时间单元中的第二符号使用NCP，则第一时间单元的长度等于N个含NCP的第二符号的长度。
如表一所示，含NCP的符号实际上有两种长度，下面称其中长度较长的为含NCP的符号中较长符号，称其中长度较短的为含NCP的符号中较短符号。需要说明，在本申请实施例中，当0.5ms边界位于第一时间单元内部不包括结尾位置的其它位置时，第一时间单元的长度等于1个含NCP的符号中较长符号的长度与N-1个含NCP的符号中较短符号的长度之和；否则，该第一时间单元的长度等于N个含NCP的符号中较短符号的长度。
作为一个可选的实施例，所述第一信息为参考信号和/或数据，所述数据可以包括控制信令和/或业务数据，所述第一终端设备将第一信息映射到第一时间单元和第二时间单元，包括：
所述第一终端设备将所述参考信号映射到所述第一时间单元的全部或部分资源元素。
具体地，第一符号的全部或部分资源可以映射参考信号，这样，由于第一符号包括的第一CP长于第二符号包括的第二CP，第二终端设备在接收定时偏差大于第二CP的长度的情况下，可以利用映射到第一符号的参考信号实现时间同步。
作为一个可选的实施例，所述第一时间单元还包括保护间隔，且所述保护间隔位于所述第一时间单元的起始位置。
保护间隔可以用于防止在相邻时间单元来自两个不同终端设备发送的信号的符号间干扰ISI。具体而言，不同终端设备在相邻的时间单元分别发送信号，到达接收终端设备的定时会有差异。以作为接收端的第二终端设备为例，若第二终端设备收到其中前一次传输信号的定时比后一次的定时晚，从时域上看，该第二终端设备收到的两次传输的信号就会有部分重叠，重叠部分的信号就会互相干扰。因此，在每次发送的起始和/或结尾位置 保留一定长度的时间(即保护间隔GP)不发送任何信息，则上述两个信号就不会重叠了。
具体地，在本申请实施例中，保护间隔(guard period，GP)可以位于一次数据传输的起始位置。在侧行专用载波上，若GP大于最大定时偏差，则可以解决相邻TTI的ISI问题。由于每次传输的开头作为发送端的第一终端设备要做功率调整、作为接收端的第二终端设备需要做自动增益控制(automatic gain control，AGC)，这些通常会导致在第二终端设备超过第二CP(即普通CP)的长度的时域序列不可识别。
因此，一次传输的开始的第一个符号的部分即使映射数据或参考信号，也无法用于解调和解码。将GP放在一次数据传输的开头，不浪费第二终端设备可用于解码数据的符号。
应理解，在上述第一时间单元包括GP的情况下，GP的长度和第一符号的长度之和为第一时间单元的长度，即GP和第一符号的长度之和等于N个第二符号的长度。
还应理解，本申请并不限定保护间隔的位置，在另一种可能的实现方式中，上述第二时间单元包括保护间隔，且该保护间隔可以位于该第二时间单元的结尾位置，本申请实施例对此不作限定。还应理解，第一时间单元的起始位置和第二时间单元的结尾位置可以都包括保护间隔，本申请实施例对第一时间单元中保护间隔的长度和第二时间单元中保护间隔的长度不作限定。
作为一个可选的实施例，所述保护间隔的长度可以是协议约定的、网络设备配置的或预配置的。
作为一个可选的实施例，所述保护间隔的长度大于最大定时偏差，所述最大定时偏差等于所述第一终端设备所支持的覆盖距离的2倍除以光速。
具体地，对应不同覆盖距离的设计目标，GP的长度可以设计为不同的数值，本申请实施例对此不作限定。通常GP的长度大于2倍的终端设备覆盖距离需求除以光速。例如，覆盖距离需求为1000m时，GP的长度大于6.67us；覆盖距离需求为700m时，GP的长度大于4.67us。
作为一个可选的实施例，所述保护间隔的长度大于终端设备从接收模式到发送模式的转换时间和/或终端设备从发送模式到接收模式的转换时间。
应理解，终端设备的收发转换时间包括终端设备从接收模式到发送模式的转换时间和终端设备从发送模式到接收模式的转换时间。当GP的长度大于终端设备的收发转换时间时，该终端设备能在GP内完成收发转换，从而完整的发送和接收对应的信号。
作为一个可选的实施例，所述保护间隔的长度大于终端设备从接收模式到发送模式的转换时间与最大定时偏差之和，或
所述保护间隔的长度大于终端设备从发送模式到接收模式的转换时间与所述最大定时偏差之和；
其中，所述最大定时偏差等于所述第一终端设备所支持的覆盖距离的2倍除以光速。
作为一个可选的实施例，在所述第二循环前缀被配置为常规循环前缀的情况下，当子载波间隔为15kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度与所述常规循环前缀之和；或当子载波间隔为30kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的2倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度；或当子载波间隔为60kHZ时，所述保护间隔的长度等于所述常规循环前缀 的长度的4倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度减去所述常规循环前缀的长度的2倍。
具体地，若终端设备所支持的覆盖距离为700m，且不考虑GP长度大于收发转换时间，各种SCS下的GP和第一CP的长度可以实现为下列三种情况中的任意一种：
(1)SCS＝15kHz时，GP＝1*NCP，第一CP＝第一符号-第一CP+NCP；
(2)SCS＝30kHz时，GP＝2*NCP，第一CP＝第一符号-第一CP；
(3)SCS＝60kHz时，GP＝4*NCP，第一CP＝第一符号-第一CP-2*NCP。
这样，能够保证第一时间单元的长度为包括第二CP的第二符号的长度的2倍。
作为一个可选的实施例，所述第一时间单元还包括第一序列，且所述第一序列位于所述第一循环前缀之前，所述第一序列是协议约定的、网络设备配置的或预配置的。
具体地，上述第一时间单元还包括一个序列，位于第一CP之前，用于第二终端设备进行AGC功率统计。
可选地，该序列可以是时域恒功率序列，也可以是短周期序列，还可以是其他类型的序列，本申请实施例对此不作限定。其中，时域恒功率序列为时域每个样点对应的复数具有相同模值的序列，短周期序列为周期短于第一CP长度的序列。AGC可分解为功率统计和增益调整两个阶段，功率统计阶段需要估计收到信号的平均功率，因此，使用特定的序列可以加快第二终端设备估计平均功率的速度。
应理解，在上述第一时间单元还包括序列的情况下，该第一时间单元中的顺序依次为GP、序列、第一CP。GP的长度和第一符号(包括序列和第一CP)的长度之和为第一时间单元的长度，即GP和第一符号的长度之和等于N个第二符号的长度。
综上，本申请实施例的信息传输方法，可以不改变用于解码数据的符号边界位置，不浪费接收侧终端设备可用于解码数据的符号，并解决相邻TTI之间的ISI问题、频率同步问题、潜在的时间同步问题，提高系统性能。
应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
上文中结合图1至图3，详细描述了根据本申请实施例的信息传输方法，下面将结合图4至图7，详细描述根据本申请实施例的信息传输装置。
图4示出了本申请实施例提供的信息传输装置400，该装置400包括：
处理单元410，用于将第一信息映射到第一时间单元和第二时间单元；
收发单元420，用于在所述第一时间单元和所述第二时间单元上发送所述第一信息；
其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述装置传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度，N为大于或等于2的整数。
本申请实施例的信息传输装置，通过设置一次数据传输的第一个符号包括一个长于普通循环前缀的特殊循环前缀，且第一个符号所属的第一时间单元的长度为包括普通循环前缀的普通符号的长度的整数倍，能够在保证设备到设备之间数据传输的同时，不改变第二 时间单元中用于解码数据的符号边界位置。
可选地，所述第一信息为参考信号和/或数据，所述处理单元410具体用于：将所述参考信号映射到所述第一时间单元的全部或部分资源元素。
可选地，所述第一时间单元还包括保护间隔，且所述保护间隔位于所述第一时间单元的起始位置。
可选地，所述保护间隔的长度是协议约定的、网络设备配置的或预配置的。
可选地，在所述第二循环前缀被配置为常规循环前缀的情况下，
当子载波间隔为15kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度与所述常规循环前缀之和；或
当子载波间隔为30kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的2倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度；或
当子载波间隔为60kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的4倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度减去所述常规循环前缀的长度的2倍。
可选地，所述第一时间单元还包括第一序列，且所述第一序列位于所述第一循环前缀之前，所述第一序列是协议约定的、网络设备配置的或预配置的。
应理解，这里的装置400以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置400可以具体为上述实施例中的第一终端设备，装置400可以用于执行上述方法实施例中与第一终端设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述装置400具有实现上述方法中第一终端设备执行的相应步骤的功能；所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块；例如发送单元可以由发射机替代，接收单元可以由接收机替代，其它单元，如确定单元等可以由处理器替代，分别执行各个方法实施例中的收发操作以及相关的处理操作。
在本申请的实施例，图4中的装置也可以是芯片或者芯片系统，例如，片上系统(system on chip，SoC)。对应地，收发单元可以是该芯片的收发电路，本申请实施例在此不作限定。
图5示出了本申请实施例提供的信息传输装置500，该装置500包括：
收发单元510，用于在第一时间单元和第二时间单元上接收第一信息；
处理单元520，用于进行解映射处理，获取所述第一信息；
其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述第一终端设备传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含 第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度，N为大于或等于2的整数。
本申请实施例的信息传输装置，通过设置一次数据传输的第一个符号包括一个长于普通循环前缀的特殊循环前缀，且第一个符号所属的第一时间单元的长度为包括普通循环前缀的普通符号的长度的整数倍，能够在保证设备到设备之间数据传输的同时，不改变第二时间单元中用于解码数据的符号边界位置。
可选地，所述第一时间单元还包括保护间隔，且所述保护间隔位于所述第一时间单元的起始位置。
可选地，所述保护间隔的长度是协议约定的、网络设备配置的或预配置的。
可选地，在所述第二循环前缀被配置为常规循环前缀的情况下，
当子载波间隔为15kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度与所述常规循环前缀之和；或
当子载波间隔为30kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的2倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度；或
当子载波间隔为60kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的4倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度减去所述常规循环前缀的长度的2倍。
可选地，所述第一时间单元还包括第一序列，且所述第一序列位于所述第一循环前缀之前，所述第一序列是协议约定的、网络设备配置的或预配置的。
应理解，这里的装置500以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置500可以具体为上述实施例中的第二终端设备，装置500可以用于执行上述方法实施例中与第二终端设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述装置500具有实现上述方法中第二终端设备执行的相应步骤的功能；所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块；例如发送单元可以由发射机替代，接收单元可以由接收机替代，其它单元，如确定单元等可以由处理器替代，分别执行各个方法实施例中的收发操作以及相关的处理操作。
在本申请的实施例，图5中的装置也可以是芯片或者芯片系统，例如，片上系统(system on chip，SoC)。对应地，收发单元可以是该芯片的收发电路，本申请实施例在此不作限定。
图6示出了本申请实施例提供的另一信息传输装置600。该装置600包括处理器610、收发器620和存储器630。其中，处理器610、收发器620和存储器630通过内部连接通 路互相通信，该存储器630用于存储指令，该处理器610用于执行该存储器630存储的指令，以控制该收发器620发送信号和/或接收信号。
其中，该处理器610用于将第一信息映射到第一时间单元和第二时间单元；通过该收发器620在所述第一时间单元和所述第二时间单元上发送所述第一信息；其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述装置传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度，N为大于或等于2的整数。
应理解，装置600可以具体为上述实施例中的第一终端设备，并且可以用于执行上述方法实施例中第一终端设备对应的各个步骤和/或流程。可选地，该存储器630可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如，存储器还可以存储设备类型的信息。该处理器610可以用于执行存储器中存储的指令，并且当该处理器610执行存储器中存储的指令时，该处理器610用于执行上述与该第一终端设备对应的方法实施例的各个步骤和/或流程。
可选地，该存储器630可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如，存储器还可以存储设备类型的信息。该处理器610可以用于执行存储器中存储的指令，并且当该处理器610执行存储器中存储的指令时，该处理器610用于执行上述与第一终端设备对应的方法实施例的各个步骤和/或流程。
图7示出了本申请实施例提供的另一信息传输装置700。该装置700包括处理器710、收发器720和存储器730。其中，处理器710、收发器720和存储器730通过内部连接通路互相通信，该存储器730用于存储指令，该处理器710用于执行该存储器730存储的指令，以控制该收发器720发送信号和/或接收信号。
其中，该处理器710用于通过该收发器720在第一时间单元和第二时间单元上接收第一信息；进行解映射处理，获取所述第一信息；其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述第一终端设备传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度，N为大于或等于2的整数。
应理解，装置700可以具体为上述实施例中的第二终端设备，并且可以用于执行上述方法实施例中第二终端设备对应的各个步骤和/或流程。可选地，该存储器730可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如，存储器还可以存储设备类型的信息。该处理器710可以用于执行存储器中存储的指令，并且当该处理器710执行存储器中存储的指令时，该处理器710用于执行上述与该第二终端设备对应的方法实施例的各个步骤和/或流程。
可选地，该存储器730可以包括只读存储器和随机存取存储器，并向处理器提供指令 和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如，存储器还可以存储设备类型的信息。该处理器710可以用于执行存储器中存储的指令，并且当该处理器710执行存储器中存储的指令时，该处理器710用于执行上述与第二终端设备对应的方法实施例的各个步骤和/或流程。
应理解，上述的收发器可以包括发射机和接收机。收发器还可以进一步包括天线，天线的数量可以为一个或多个。存储器可以是一个单独的器件，也可以集成在处理器中。上述的各个器件或部分器件可以集成到芯片中实现，如集成到基带芯片中实现。
在本申请的实施例，图6和图7中的收发器也可以是通信接口，在此不做限定。
也应理解，在本申请实施例中，上述装置的处理器可以是中央处理单元(central processing unit，CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field-programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件单元组合执行完成。软件单元可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器执行存储器中的指令，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以意识到，结合本文中所公开的实施例中描述的各方法步骤和单元，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各实施例的步骤及组成。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。本领域普通技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的系统、 装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接，也可以是电的，机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (16)

  1. 一种信息传输方法，其特征在于，包括：
    第一终端设备将第一信息映射到第一时间单元和第二时间单元；
    所述第一终端设备在所述第一时间单元和所述第二时间单元上发送所述第一信息；
    其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述第一终端设备传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度，N为大于或等于2的整数。
  2. 根据权利要求1所述的方法，其特征在于，所述第一信息为参考信号和/或数据，所述第一终端设备将第一信息映射到第一时间单元和第二时间单元，包括：
    所述第一终端设备将所述参考信号映射到所述第一时间单元的全部或部分资源元素。
  3. 一种信息传输方法，其特征在于，包括：
    第二终端设备在第一时间单元和第二时间单元上接收第一信息；
    所述第二终端设备进行解映射处理，获取所述第一信息；
    其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述第一终端设备传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度，N为大于或等于2的整数。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述第一时间单元还包括保护间隔，且所述保护间隔位于所述第一时间单元的起始位置。
  5. 根据权利要求4所述的方法，其特征在于，所述保护间隔的长度是协议约定的、网络设备配置的或预配置的。
  6. 根据权利要求4或5所述的方法，其特征在于，在所述第二循环前缀被配置为常规循环前缀的情况下，
    当子载波间隔为15kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度与所述常规循环前缀之和；或
    当子载波间隔为30kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的2倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度；或
    当子载波间隔为60kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的4倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度减去所述常规循环前缀的长度的2倍。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述第一时间单元还包括第一序列，且所述第一序列位于所述第一循环前缀之前，所述第一序列是协议约定的、网络设备配置的或预配置的。
  8. 一种信息传输装置，其特征在于，包括：
    处理单元，用于将第一信息映射到第一时间单元和第二时间单元；
    收发单元，用于在所述第一时间单元和所述第二时间单元上发送所述第一信息；
    其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述装置传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度，N为大于或等于2的整数。
  9. 根据权利要求8所述的装置，其特征在于，所述第一信息为参考信号和/或数据，所述处理单元具体用于：
    将所述参考信号映射到所述第一时间单元的全部或部分资源元素。
  10. 一种信息传输装置，其特征在于，包括：
    收发单元，用于在第一时间单元和第二时间单元上接收第一信息；
    处理单元，用于进行解映射处理，获取所述第一信息；
    其中，所述第一时间单元和所述第二时间单元连续，且所述第一时间单元在所述第二时间单元之前，所述第一时间单元包括含第一循环前缀的第一符号，所述第一符号为所述第一终端设备传输所述第一信息所采用的第一个符号，所述第二时间单元包括至少一个含第二循环前缀的第二符号，且所述第一循环前缀的长度大于所述第二循环前缀的长度，所述第一时间单元的长度等于N个所述第二时间单元中含所述第二循环前缀的所述第二符号的长度，N为大于或等于2的整数。
  11. 根据权利要求8至10中任一项所述的装置，其特征在于，所述第一时间单元还包括保护间隔，且所述保护间隔位于所述第一时间单元的起始位置。
  12. 根据权利要求11所述的装置，其特征在于，所述保护间隔的长度是协议约定的、网络设备配置的或预配置的。
  13. 根据权利要求11或12所述的装置，其特征在于，在所述第二循环前缀被配置为常规循环前缀的情况下，
    当子载波间隔为15kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度与所述常规循环前缀之和；或
    当子载波间隔为30kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的2倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度；或
    当子载波间隔为60kHZ时，所述保护间隔的长度等于所述常规循环前缀的长度的4倍，所述第一循环前缀的长度等于所述第一符号中除所述第一循环前缀之外的部分的长度减去所述常规循环前缀的长度的2倍。
  14. 根据权利要求8至13中任一项所述的装置，其特征在于，所述第一时间单元还包括第一序列，且所述第一序列位于所述第一循环前缀之前，所述第一序列是协议约定的、网络设备配置的或预配置的。
  15. 一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，其特征在于，当所述计算机程序被计算设备执行时，使得所述计算设备实现如权利要求1至7中任一项所述的信息传输方法。
  16. 一种芯片系统，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片系统的通信装置执行如权利要求1至7中任一项所述的信息传输方法。
PCT/CN2019/083257 2018-05-04 2019-04-18 信息传输方法和信息传输装置 Ceased WO2019210778A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19797046.0A EP3780467B1 (en) 2018-05-04 2019-04-18 Information transmission method and information transmission device
CA3098616A CA3098616A1 (en) 2018-05-04 2019-04-18 Information transmission method and information transmission apparatus
US17/088,181 US11665038B2 (en) 2018-05-04 2020-11-03 Information transmission method and information transmission apparatus using cyclic prefixes of different lengths in first and second time units

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810420187.9 2018-05-04
CN201810420187.9A CN110445587B (zh) 2018-05-04 2018-05-04 信息传输方法和信息传输装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/088,181 Continuation US11665038B2 (en) 2018-05-04 2020-11-03 Information transmission method and information transmission apparatus using cyclic prefixes of different lengths in first and second time units

Publications (1)

Publication Number Publication Date
WO2019210778A1 true WO2019210778A1 (zh) 2019-11-07

Family

ID=68386264

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/083257 Ceased WO2019210778A1 (zh) 2018-05-04 2019-04-18 信息传输方法和信息传输装置

Country Status (5)

Country Link
US (1) US11665038B2 (zh)
EP (1) EP3780467B1 (zh)
CN (1) CN110445587B (zh)
CA (1) CA3098616A1 (zh)
WO (1) WO2019210778A1 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11272461B2 (en) * 2018-08-10 2022-03-08 Lg Electronics Inc. Method and apparatus for transmitting plurality of packets by sidelink terminal in wireless communication system
CN116346560B (zh) * 2021-12-22 2025-09-23 维沃移动通信有限公司 信号生成和接收方法及设备
EP4568147A4 (en) * 2022-08-26 2025-11-19 Huawei Tech Co Ltd SIGNAL PROCESSING METHOD AND APPARATUS
CN118413260A (zh) * 2023-01-29 2024-07-30 华为技术有限公司 一种信息传输方法及装置
CN118784421A (zh) * 2023-04-07 2024-10-15 华为技术有限公司 通信方法、网络设备、终端设备和通信系统
CN119450715A (zh) * 2023-08-03 2025-02-14 大唐移动通信设备有限公司 信息处理方法、装置、网络设备及终端
CN116800395B (zh) * 2023-08-23 2023-10-27 泸州卓远液压有限公司 一种基于5g的液压设备远程控制方法及装置
CN120034415A (zh) * 2023-11-23 2025-05-23 华为技术有限公司 符号处理方法、通信装置及通信系统
CN120343573A (zh) * 2024-01-16 2025-07-18 维沃移动通信有限公司 信息配置方法、终端及网络侧设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015042789A1 (zh) * 2013-09-25 2015-04-02 华为技术有限公司 信号的发送方法、接收方法、装置及通信设备
CN104770058A (zh) * 2013-07-26 2015-07-08 华为终端有限公司 用户设备之间的信号传输方法及装置
WO2016192032A1 (zh) * 2015-06-02 2016-12-08 华为技术有限公司 一种数据传输方法、系统及终端

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425713C1 (de) * 1994-07-20 1995-04-20 Inst Rundfunktechnik Gmbh Verfahren zur Vielträger Modulation und Demodulation von digital codierten Daten
KR100582906B1 (ko) * 2003-12-27 2006-05-23 한국전자통신연구원 무선 랜 시스템을 위한 프리앰블 구성 방법 및 프레임동기 검출 방법
CN101136892A (zh) * 2007-10-10 2008-03-05 天津大学 基于全相位fft的ofdm调制解调方法
WO2011034358A2 (ko) * 2009-09-16 2011-03-24 엘지전자 주식회사 다중 안테나 시스템에서 참조 신호 전송 방법 및 장치
CN101778081B (zh) * 2010-03-03 2012-10-03 宁波大学 一种单频网无线多媒体广播信号传输方法
WO2014025157A1 (en) * 2012-08-05 2014-02-13 Lg Electronics Inc. Method of configuring cyclic prefix for small cell in wireless communication system and apparatus therefor
CN105102671B (zh) * 2013-02-08 2020-08-07 瑞士艾发科技 Hipims溅射的方法和hipims溅射系统
JP6192067B2 (ja) * 2013-09-20 2017-09-06 株式会社日立国際電気 無線通信システム、及び、無線通信方法
US9794960B2 (en) * 2014-12-31 2017-10-17 Samsung Electronics Co., Ltd. Methods and apparatus for uplink channel access and transmissions for LTE on unlicensed spectrum
CN107113275A (zh) * 2014-12-31 2017-08-29 华为技术有限公司 一种数据传输方法、装置和系统
JP6737868B2 (ja) * 2015-07-06 2020-08-12 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． データ送信方法、無線ネットワーク装置、及び通信システム
CN106658697B (zh) * 2015-11-04 2020-11-17 中兴通讯股份有限公司 同步信号发送、检测方法、基站及终端
US10187191B2 (en) * 2016-01-27 2019-01-22 Qualcomm Incorporated SRS transmission in management in carrier aggregation
US10547417B2 (en) * 2016-09-27 2020-01-28 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving signal in communication system using scalable frame structure
CN106507439B (zh) * 2016-10-28 2019-12-10 宇龙计算机通信科技(深圳)有限公司 一种传输信息的方法、基站及终端
EP3416327A1 (en) * 2017-06-16 2018-12-19 Panasonic Intellectual Property Corporation of America Mapping indication in mixed ofdm numerology

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104770058A (zh) * 2013-07-26 2015-07-08 华为终端有限公司 用户设备之间的信号传输方法及装置
WO2015042789A1 (zh) * 2013-09-25 2015-04-02 华为技术有限公司 信号的发送方法、接收方法、装置及通信设备
WO2016192032A1 (zh) * 2015-06-02 2016-12-08 华为技术有限公司 一种数据传输方法、系统及终端

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3780467A4

Also Published As

Publication number Publication date
EP3780467B1 (en) 2026-03-25
US11665038B2 (en) 2023-05-30
CN110445587A (zh) 2019-11-12
CA3098616A1 (en) 2019-11-07
EP3780467A1 (en) 2021-02-17
EP3780467A4 (en) 2021-06-09
CN110445587B (zh) 2022-01-14
US20210075658A1 (en) 2021-03-11

Similar Documents

Publication Publication Date Title
US11457444B2 (en) Service transmission method and apparatus
CN110445587B (zh) 信息传输方法和信息传输装置
CN109327884B (zh) 通信方法、网络设备和中继设备
CN111278162B (zh) 一种通信接入的方法和设备
CN111757459B (zh) 一种通信方法及装置
CN114826535B (zh) 通信方法、设备及存储介质
TW202008829A (zh) 資源配置的方法和終端設備
TWI719128B (zh) 業務傳輸方法和通信設備
WO2022141277A1 (zh) 一种随机接入方法、电子设备及存储介质
CN111787625B (zh) 信息传输的方法和设备
CN108809557A (zh) 传输信息的方法和装置
CN113711628B (zh) 侧行数据传输方法、设备、存储介质及芯片
CN114600533B (zh) 信号传输方法、装置及设备
CN112740800B (zh) 通信方法、终端设备和网络设备
CN112399622B (zh) 一种控制信息的发送、接收方法和通信装置
WO2017166311A1 (zh) 一种上行信息的传输方法及设备、系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19797046

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 3098616

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2019797046

Country of ref document: EP

Effective date: 20201106

WWG Wipo information: grant in national office

Ref document number: 2019797046

Country of ref document: EP