WO2021016858A1 - 信息发送、接收方法及装置、发送设备和接收设备 - Google Patents

信息发送、接收方法及装置、发送设备和接收设备 Download PDF

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Publication number
WO2021016858A1
WO2021016858A1 PCT/CN2019/098359 CN2019098359W WO2021016858A1 WO 2021016858 A1 WO2021016858 A1 WO 2021016858A1 CN 2019098359 W CN2019098359 W CN 2019098359W WO 2021016858 A1 WO2021016858 A1 WO 2021016858A1
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Prior art keywords
time domain
target mapping
mapping
information
last time
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PCT/CN2019/098359
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English (en)
French (fr)
Inventor
李媛媛
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2019/098359 priority Critical patent/WO2021016858A1/zh
Priority to US17/631,409 priority patent/US12108383B2/en
Priority to CN201980001593.4A priority patent/CN110574317B/zh
Publication of WO2021016858A1 publication Critical patent/WO2021016858A1/zh

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    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • 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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • 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
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H04L5/0041—Frequency-non-contiguous
    • 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 signaling, 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
    • H04L5/0058—Allocation criteria
    • H04L5/0069—Allocation based on distance or geographical location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to an information sending method and device, an information receiving method and device, a sending device and a receiving device.
  • V2X Vehicle to Everything
  • V2V Vehicle to Vehicle
  • V2I Vehicle to Infrastructure
  • V2P Vehicle to People
  • V2N Vehicle Interaction with the network
  • Cellular (C)-V2X refers to a vehicle based on the evolution of cellular network communication technologies such as the fourth generation mobile communication technology (4th Generation, 4G) or the fifth generation mobile communication technology (5th Generation, 5G).
  • Wireless communication technology which includes two communication interfaces: one is a short-distance direct communication interface (PC5) between cars, people and roads, and the other is a cellular communication interface (Uu), which can achieve long-distance and larger Range of reliable communication.
  • PC5 short-distance direct communication interface
  • Uu cellular communication interface
  • V2X organically links people, vehicles, roads, clouds and other transportation participation elements together. It can not only support vehicles to obtain more information than bicycles perceive, and promote the innovation and application of autonomous driving technology; it also helps build a smart transportation system. Promoting the development of new models of automobiles and traffic services is of great significance to improving traffic efficiency, saving resources, reducing pollution, reducing accident rates, and improving traffic management.
  • LTE Long Term Evolution
  • the physical layer structure is enhanced to support higher speeds, support for global satellite navigation system synchronization and more efficient resource allocation mechanisms and congestion control mechanisms.
  • the Uu interface it includes the enhancement of uplink and downlink transmission and consideration of multi-access edge computing capabilities.
  • LTE-eV2X refers to the enhanced technology research phase (R15) that supports V2X advanced business scenarios. The goal is to further improve the reliability, data rate and delay performance of the V2X pass-through mode to partially meet the needs of V2X advanced business.
  • the 5G-V2X phase refers to the technical research phase (R16+) based on the 5G New Radio (NR), which is used to support the advanced business scenarios of V2X. The study was launched in June 2018 and will be combined with LTE-V2X or LTE- eV2X forms a complementary relationship.
  • the communication standard formulation on the PC5 interface of V2X is based on Device to Device (D2D for short), and uses a broadcast communication method, that is, a single vehicle broadcasts information to multiple vehicles.
  • D2D Device to Device
  • the fixed subcarrier interval is 15KHz
  • the scheduling is based on subframes.
  • the length of a subframe is 1ms, and there are 14 symbols in a subframe.
  • the raw bits are calculated according to the 14-symbol bearer.
  • GP guard period
  • the first symbol is used for Automatic Gain Control (AGC) processing. Therefore, in the worst case, the terminal will lose at least two symbols of useful information, causing performance loss.
  • AGC Automatic Gain Control
  • the last symbol Since the first symbol and the last symbol are considered during rate matching, but in actual transmission, the last symbol does not send any data, which affects the decoding performance and ultimately affects the performance of the system.
  • part or all of the first symbol needs to be used for AGC processing and estimation.
  • one method is to combine GP and AGC in the first symbol processing, that is, the front end of the first symbol No data is sent for a period of time, and the last symbol is sent as usual.
  • the present application discloses an information sending method and device, an information receiving method and device, a sending device and a receiving device, so as to reduce the interference caused by the last symbol of SL to the first symbol of NR DL.
  • an information sending method applied to a sending end includes:
  • the information of the set duration at the end of the last time domain unit is not sent, and the set duration is determined by the target mapping method used when performing resource mapping.
  • the performing resource mapping in a comb-like manner on the frequency domain of the last time domain unit includes:
  • the performing resource mapping in a comb-like manner on the frequency domain of the last time domain unit includes:
  • the performing resource mapping in a comb-like manner on the frequency domain of the last time domain unit includes:
  • an information receiving method is provided, which is applied to a receiving end, and the method includes:
  • the information of the duration set at the end of the last time domain unit is not processed.
  • the acquisition of the target mapping method used for resource mapping in the frequency domain of the last time domain unit includes:
  • the acquisition of the target mapping method used for resource mapping in the frequency domain of the last time domain unit includes:
  • an information sending device applied to a sending end includes:
  • a mapping module configured to perform resource mapping in a comb-like manner on the frequency domain of the last time domain unit, the comb-like manner including at least one mapping manner;
  • a transformation module configured to transform the frequency domain mapped by the mapping module to the time domain
  • the processing module is configured to not send the information of the set duration at the end of the last time domain unit after the transformation module is transformed into the time domain, and the set duration is determined by the target mapping used in resource mapping The way is ok.
  • mapping module includes:
  • the first selection submodule is configured to select the target mapping mode according to the coverage radius of the cell where it is located and the processing capability of the receiving end;
  • the first sending submodule is configured to send signaling carrying the target mapping mode selected by the first selection submodule to the receiving end.
  • mapping module includes:
  • the receiving sub-module is configured to receive signaling carrying the target mapping mode or indication information indicating the target mapping mode sent by the cluster head in the cluster where the sending end is located, and the target mapping mode is determined by the cluster head Select according to the transmission distance between the sending end and the receiving end and the processing capability of the receiving end.
  • mapping module includes:
  • the determining sub-module is configured to determine the target mapping mode
  • the second sending submodule is configured to send signaling carrying the target mapping mode determined by the determining submodule to the receiving end or send indication information indicating the target mapping mode to the receiving end.
  • an information receiving device applied to a receiving end including:
  • the obtaining module is configured to obtain the target mapping method used for resource mapping in the frequency domain of the last time domain unit;
  • a determining module configured to determine a set duration based on the target mapping method acquired by the acquiring module
  • the processing module is configured to not process the set duration information determined by the determining module at the end of the last time domain unit.
  • the acquisition module includes:
  • the first receiving submodule is configured to receive the signaling sent by the sending end or the cluster head in the cluster where the receiving end is located;
  • the first obtaining submodule is configured to obtain the target mapping mode from the signaling received by the first receiving submodule.
  • the acquisition module includes:
  • the second receiving submodule is configured to receive the indication information sent by the sending end or the cluster head in the cluster where the receiving end is located;
  • the blind detection acquisition sub-module is configured to perform blind detection on the indication information received by the second receiving sub-module to acquire the target mapping mode.
  • a sending device including:
  • a memory for storing processor executable instructions
  • the processor is configured to:
  • the information of the set duration at the end of the last time domain unit is not sent, and the set duration is determined by the target mapping method used when performing resource mapping.
  • a receiving device including:
  • a memory for storing processor executable instructions
  • the processor is configured to:
  • the information of the duration set at the end of the last time domain unit is not processed.
  • a computer-readable storage medium having computer instructions stored thereon, which when executed by a processor implements the steps of the information sending method described above.
  • a computer-readable storage medium having computer instructions stored thereon, which, when executed by a processor, implement the steps of the above information receiving method.
  • the frequency domain is transformed to the time domain, and after the transformation to the time domain, the information of the set duration at the end of the last time domain unit is not sent, thereby Reduce the interference caused by the last symbol of SL to the first symbol of NR DL.
  • the set duration is determined based on the target mapping method, and the information of the set duration at the end of the last time domain unit is not processed, thereby improving information processing effectiveness.
  • Fig. 1 is a flowchart of an information sending method shown in an exemplary embodiment of the present application
  • Fig. 2a is a schematic diagram of a mapping manner shown in an exemplary embodiment of the present application.
  • FIG. 2b is a schematic diagram of another mapping manner shown in an exemplary embodiment of the present application.
  • Fig. 2c is a schematic diagram of another mapping manner shown in an exemplary embodiment of the present application.
  • Fig. 3 is a flowchart of an information receiving method shown in an exemplary embodiment of the present application.
  • Fig. 4 is a signaling flowchart of an information receiving method shown in an exemplary embodiment of the present application.
  • Fig. 5 is a block diagram showing an information sending device according to an exemplary embodiment
  • Fig. 6 is a block diagram showing another information sending device according to an exemplary embodiment
  • Fig. 7 is a block diagram showing another information sending device according to an exemplary embodiment
  • Fig. 8 is a block diagram showing another information sending device according to an exemplary embodiment
  • Fig. 9 is a block diagram showing an information receiving device according to an exemplary embodiment
  • Fig. 10 is a block diagram showing another information receiving device according to an exemplary embodiment
  • Fig. 11 is a block diagram showing another information receiving device according to an exemplary embodiment
  • Fig. 12 is a block diagram showing a device suitable for an information sending device or an information receiving device according to an exemplary embodiment
  • Fig. 13 is a block diagram showing another device suitable for information sending according to an exemplary embodiment.
  • Fig. 1 is a flowchart of an information sending method shown in an exemplary embodiment of the present application. This embodiment is described from the sending end. As shown in Fig. 1, the information sending method includes:
  • step S101 resource mapping is performed in a comb-like manner on the frequency domain of the last time domain unit, and the comb-like manner includes at least one mapping manner.
  • the transmitting end may be a base station or a UE.
  • the time domain unit may include but is not limited to symbols.
  • the comb-like manner may include, but is not limited to, the three mapping manners shown in FIGS. 2a to 2c, wherein the black blocks in FIGS. 2a to 2c can represent data.
  • performing resource mapping in a comb-like manner on the frequency domain of the last time domain unit may include but is not limited to any of the following manners:
  • the base station selects the target mapping mode according to the coverage radius of the cell and the processing capability of the receiving end, and informs the receiving end through signaling.
  • the target mapping mode can be represented by a preset number of bits, for example, by two bits or one bit.
  • 00 can be used to indicate that the value corresponding to the target mapping method shown in Figure 2a is 2; 01 is used to indicate the value corresponding to the target mapping method shown in Figure 2b is 4; The value corresponding to the target mapping method is 6.
  • 0 can be used to indicate that the value corresponding to the target mapping method shown in Figure 2b is 4, and 1 can be used to indicate that the value corresponding to the target mapping method shown in Figure 2c is 6.
  • the bit is empty, It means that the value corresponding to the target mapping method shown in FIG. 2a is the default value 2.
  • Method 12 Receive the signaling carrying the target mapping mode or the indication information indicating the target mapping mode sent by the cluster head in the cluster where the sending end is located.
  • the target mapping mode is determined by the cluster head according to the transmission distance between the sending end and the receiving end and the receiving end. Processing power selection.
  • the cluster head selects the target mapping method according to the transmission distance between the sender and the receiver and the processing capability of the receiver, and informs the terminals in the cluster through signaling or instruction information.
  • the notification signaling can be carried in a broadcast channel to notify the terminal.
  • the indication information can be a sequence, and different sequences are used to represent different mapping methods.
  • Manner 13 Determine the target mapping mode, and send signaling carrying the target mapping mode to the receiving end or send indication information indicating the target mapping mode to the receiving end.
  • the terminal as the sending end can determine the target mapping mode by itself, and send the signaling carrying the target mapping mode to the receiving end or send the indication information indicating the target mapping mode to the receiving end.
  • the indication information may be a sequence, and different sequences are used to represent different mapping modes.
  • step S102 the frequency domain is transformed to the time domain.
  • step S103 after transforming to the time domain, the information of the set duration at the end of the last time domain unit is not sent, and the set duration is determined by the target mapping method used when performing resource mapping.
  • the set duration is determined by the target mapping method, and the set duration is one part of the value corresponding to the target mapping method.
  • the set duration is 1/2
  • the set duration is 1/4
  • the target mapping method is shown in Figure 2c.
  • the set duration is 1/6.
  • the information of the set duration at the end of the last time domain unit is not sent, so as to reduce the interference generated by the last symbol of SL on the first symbol of NR DL.
  • the resource mapping is performed on the frequency domain of the last time domain unit in a comb-like manner to transform the frequency domain to the time domain, and after the transformation to the time domain, the time set at the end of the last time domain unit is not sent Information, thereby reducing the interference caused by the last symbol of SL to the first symbol of NR DL.
  • Fig. 3 is a flowchart of an information receiving method shown in an exemplary embodiment of the present application. This embodiment is described from the receiving end. As shown in Fig. 3, the information sending method includes:
  • step S301 the target mapping method used for resource mapping in the frequency domain of the last time domain unit is acquired.
  • the receiving end may be a UE.
  • the time domain unit may include but is not limited to symbols.
  • the target mapping method used for resource mapping on the frequency domain of the last time domain unit can be obtained in the following manner:
  • Manner 21 Receive the signaling sent by the sending end or the cluster head in the cluster where the receiving end is located, and obtain the target mapping mode from the signaling.
  • the receiving end can directly learn the target mapping mode. For example, if the signaling carries the target mapping mode shown in Figure 2a, the corresponding value of the target mapping mode can be directly obtained from the signaling. 2.
  • Manner 22 Receive the indication information sent by the sending end or the cluster head in the cluster where the receiving end is located, perform a blind check on the indication information, and obtain the target mapping mode.
  • the indication information may be but not limited to a sequence.
  • the target mapping mode can be obtained by blindly checking the indication information.
  • step S302 the set duration is determined based on the target mapping mode.
  • the set duration is one-fold of the value corresponding to the target mapping mode.
  • the set duration is 1/2
  • the set duration is 1/4
  • the target mapping method is shown in Figure 2c.
  • the set duration is 1/6.
  • step S303 the time length information set at the end of the last time domain unit is not processed.
  • the receiving end After receiving the information, the receiving end does not process the information of the set duration at the end of the last time domain unit, which improves the efficiency of information processing.
  • the set duration is determined based on the target mapping method, and the information about the set duration at the end of the last time domain unit is not processed, thereby Can improve the efficiency of information processing.
  • Fig. 4 is a signaling flowchart of an information receiving method shown in an exemplary embodiment of the present application. This embodiment is described from the perspective of the interaction between the sending end and the receiving end. As shown in Fig. 4, the information receiving method includes:
  • step S401 the transmitting end performs resource mapping in a comb-like manner on the frequency domain of the last symbol, and the comb-like manner includes at least one mapping manner.
  • step S402 the transmitting end transforms the frequency domain into the time domain.
  • step S403 after transforming to the time domain, the sending end does not send the information of the set duration at the end of the last symbol, and the set duration is determined by the target mapping method used during resource mapping.
  • step S404 the receiving end obtains the target mapping mode used for resource mapping in the frequency domain of the last symbol.
  • step S405 the receiving end determines the set duration based on the target mapping mode.
  • step S406 the receiving end does not process the information of the set duration at the end of the last symbol.
  • the sender does not send the information of the set duration at the end of the last symbol, thereby reducing the interference caused by the last symbol of SL on the first symbol of NR DL.
  • the information with the duration set at the end of the last symbol is not processed, which improves the information processing efficiency.
  • Fig. 5 is a block diagram showing an information sending device according to an exemplary embodiment.
  • the information sending device is located at the sending end. As shown in Fig. 5, the device includes:
  • the mapping module 51 is configured to perform resource mapping in a comb-like manner on the frequency domain of the last time domain unit, and the comb-like manner includes at least one mapping manner.
  • the transmitting end may be a base station or a UE.
  • the time domain unit may include but is not limited to symbols.
  • the comb-like manner may include, but is not limited to, the three mapping manners shown in FIGS. 2a to 2c, wherein the black blocks in FIGS. 2a to 2c can represent data.
  • the transform module 52 is configured to transform the frequency domain mapped by the mapping module 51 into the time domain.
  • the processing module 53 is configured to not send the information of the set duration at the end of the last time domain unit after the transformation module 52 transforms to the time domain, and the set duration is determined by the target mapping method used during resource mapping.
  • the set duration is determined by the target mapping method, and the set duration is one part of the value corresponding to the target mapping method.
  • the set duration is 1/2
  • the set duration is 1/4
  • the target mapping method is shown in Figure 2c.
  • the set duration is 1/6.
  • the information of the set duration at the end of the last time domain unit is not sent, so as to reduce the interference generated by the last symbol of SL on the first symbol of NR DL.
  • the resource mapping is performed on the frequency domain of the last time domain unit in a comb-like manner to transform the frequency domain to the time domain, and after the transformation to the time domain, the time set at the end of the last time domain unit is not sent Information, thereby reducing the interference caused by the last symbol of SL to the first symbol of NR DL.
  • Fig. 6 is a block diagram showing another information sending device according to an exemplary embodiment. As shown in Fig. 6, based on the embodiment shown in Fig. 5, the mapping module 51 may include:
  • the first selection submodule 511 is configured to select the target mapping mode according to the coverage radius of the cell where it is located and the processing capability of the receiving end.
  • the first sending submodule 512 is configured to send signaling carrying the target mapping mode selected by the first selection submodule 511 to the receiving end.
  • the base station selects the target mapping mode according to the coverage radius of the cell and the processing capability of the receiving end, and informs the receiving end through signaling.
  • the target mapping mode can be represented by a preset number of bits, for example, by two bits or one bit.
  • 00 can be used to indicate that the value corresponding to the target mapping method shown in Figure 2a is 2; 01 is used to indicate the value corresponding to the target mapping method shown in Figure 2b is 4; The value corresponding to the target mapping method is 6.
  • 0 can be used to indicate that the value corresponding to the target mapping method shown in Figure 2b is 4, and 1 can be used to indicate that the value corresponding to the target mapping method shown in Figure 2c is 6.
  • the bit is empty, It means that the value corresponding to the target mapping method shown in FIG. 2a is the default value 2.
  • the target mapping method is selected according to the coverage radius of the cell and the processing capability of the receiving end, and the signal carrying the target mapping method is sent to the receiving end, so that the receiving end can obtain the last time domain unit to perform on the frequency domain.
  • the target mapping method used in resource mapping.
  • Fig. 7 is a block diagram showing another information sending device according to an exemplary embodiment. As shown in Fig. 7, based on the embodiment shown in Fig. 5, the mapping module 51 may include:
  • the receiving sub-module 513 is configured to receive the signaling carrying the target mapping mode or the indication information indicating the target mapping mode sent by the cluster head in the cluster where the sending end is located.
  • the target mapping mode is determined by the cluster head according to the transmission between the sending end and the receiving end. Choice of distance and receiving end processing power.
  • the cluster head selects the target mapping method according to the transmission distance between the sender and the receiver and the processing capability of the receiver, and informs the terminals in the cluster through signaling or instruction information.
  • the notification signaling can be carried in a broadcast channel to notify the terminal.
  • the indication information can be a sequence, and different sequences are used to represent different mapping methods.
  • the last time domain unit used for resource mapping in the frequency domain is obtained.
  • Fig. 8 is a block diagram showing another information sending device according to an exemplary embodiment. As shown in Fig. 8, based on the embodiment shown in Fig. 5, the mapping module 51 may include:
  • the determining sub-module 514 is configured to determine the target mapping mode.
  • the second sending submodule 515 is configured to send signaling carrying the target mapping mode determined by the determining submodule 514 to the receiving end or send indication information indicating the target mapping mode to the receiving end.
  • the terminal as the sending end can determine the target mapping mode by itself, and send the signaling carrying the target mapping mode to the receiving end or send the indication information indicating the target mapping mode to the receiving end.
  • the indication information may be a sequence, and different sequences are used to represent different mapping modes.
  • the receiving end can obtain the frequency domain of the last time domain unit.
  • the target mapping method used for resource mapping used for resource mapping.
  • Fig. 9 is a block diagram showing an information receiving device according to an exemplary embodiment.
  • the device is located at the receiving end. As shown in Fig. 9, the device includes:
  • the acquiring module 91 is configured to acquire the target mapping mode used when performing resource mapping on the frequency domain of the last time domain unit.
  • the receiving end may be a UE.
  • the time domain unit may include but is not limited to symbols.
  • the determining module 92 is configured to determine the set duration based on the target mapping method acquired by the acquiring module 91.
  • the set duration is one-fold of the value corresponding to the target mapping mode.
  • the set duration is 1/2
  • the set duration is 1/4
  • the target mapping method is shown in Figure 2c.
  • the set duration is 1/6.
  • the processing module 93 is configured to not process the set duration information determined by the last time domain unit end determining module 92.
  • the information of the set duration at the end of the last time domain unit is not processed, which improves the efficiency of information processing.
  • the set duration is determined based on the target mapping method, and the information about the set duration at the end of the last time domain unit is not processed, thereby Can improve the efficiency of information processing.
  • Fig. 10 is a block diagram showing another information receiving device according to an exemplary embodiment.
  • the obtaining module 91 may include:
  • the first receiving submodule 911 is configured to receive the signaling sent by the sending end or the cluster head in the cluster where the receiving end is located.
  • the first obtaining sub-module 912 is configured to obtain the target mapping mode from the signaling received by the first receiving sub-module 911.
  • the receiving end can directly learn the target mapping mode. For example, if the signaling carries the target mapping mode shown in Figure 2a, the corresponding value of the target mapping mode can be directly obtained from the signaling. 2.
  • Fig. 11 is a block diagram showing another information receiving device according to an exemplary embodiment. As shown in Fig. 11, on the basis of the embodiment shown in Fig. 9, the obtaining module 91 may include:
  • the second receiving submodule 913 is configured to receive the indication information sent by the sending end or the cluster head in the cluster where the receiving end is located.
  • the blind detection acquisition sub-module 914 is configured to perform blind detection on the indication information received by the second receiving sub-module 913 to acquire the target mapping mode.
  • the received indication information is blindly checked to obtain the target mapping mode, which provides conditions for determining the set duration according to the target mapping mode.
  • Fig. 12 is a block diagram showing a device suitable for an information sending device or an information receiving device according to an exemplary embodiment.
  • the apparatus 1200 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant and other user equipment.
  • the device 1200 may include one or more of the following components: a processing component 1202, a memory 1204, a power supply component 1206, a multimedia component 1208, an audio component 1210, an input/output (I/O) interface 1212, a sensor component 1214, And the communication component 1216.
  • a processing component 1202 a memory 1204, a power supply component 1206, a multimedia component 1208, an audio component 1210, an input/output (I/O) interface 1212, a sensor component 1214, And the communication component 1216.
  • the processing component 1202 generally controls the overall operations of the device 1200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing element 1202 may include one or more processors 1220 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 1202 may include one or more modules to facilitate the interaction between the processing component 1202 and other components.
  • the processing component 1202 may include a multimedia module to facilitate the interaction between the multimedia component 1208 and the processing component 1202.
  • one of the processors 1220 in the processing component 1202 may be configured as:
  • the information of the set duration at the end of the last time domain unit is not sent, and the set duration is determined by the target mapping method used during resource mapping.
  • one of the processors 1220 in the processing component 1202 may be configured as:
  • the information of the duration set at the end of the last time domain unit is not processed.
  • the memory 1204 is configured to store various types of data to support the operation of the device 1200. Examples of these data include instructions for any application or method operating on the device 1200, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 1204 can be implemented by any type of volatile or non-volatile storage devices or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable and Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic Disk Magnetic Disk or Optical Disk.
  • the power supply component 1206 provides power for various components of the device 1200.
  • the power supply component 1206 may include a power management system, one or more power supplies, and other components associated with the generation, management, and distribution of power for the device 1200.
  • the multimedia component 1208 includes a screen that provides an output interface between the device 1200 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor can not only sense the boundary of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
  • the multimedia component 1208 includes a front camera and/or a rear camera. When the device 1200 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 1210 is configured to output and/or input audio signals.
  • the audio component 1210 includes a microphone (MIC).
  • the microphone is configured to receive external audio signals.
  • the received audio signal may be further stored in the memory 1204 or transmitted via the communication component 1216.
  • the audio component 1210 further includes a speaker for outputting audio signals.
  • the I/O interface 1212 provides an interface between the processing component 1202 and a peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 1214 includes one or more sensors for providing the device 1200 with various aspects of status assessment.
  • the sensor component 1214 can detect the on/off status of the device 1200 and the relative positioning of components.
  • the component is the display and keypad of the device 1200.
  • the sensor component 1214 can also detect the position change of the device 1200 or a component of the device 1200. The presence or absence of contact with the device 1200, the orientation or acceleration/deceleration of the device 1200 and the temperature change of the device 1200.
  • the sensor assembly 1214 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 1214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 1214 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 1216 is configured to facilitate wired or wireless communication between the apparatus 1200 and other devices.
  • the device 1200 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof.
  • the communication component 1216 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 1216 further includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the apparatus 1200 may be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing equipment (DSPD), programmable logic devices (PLD), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing equipment
  • PLD programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • non-transitory computer-readable storage medium including instructions, such as the memory 1204 including instructions, which may be executed by the processor 1220 of the device 1200 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • Fig. 13 is a block diagram showing another device suitable for information sending according to an exemplary embodiment.
  • the apparatus 1300 may be provided as a base station. 13, the device 1300 includes a processing component 1322, a wireless transmitting/receiving component 1324, an antenna component 1326, and a signal processing part specific to a wireless interface.
  • the processing component 1322 may further include one or more processors.
  • One of the processors in the processing component 1322 may be configured as:
  • the information of the set duration at the end of the last time domain unit is not sent, and the set duration is determined by the target mapping method used in resource mapping.
  • a non-transitory computer-readable storage medium including instructions is also provided, and the foregoing instructions can be executed by the processing component 1322 of the device 1300 to complete the foregoing information sending method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • the relevant part can refer to the part of the description of the method embodiment.
  • the device embodiments described above are merely illustrative.
  • 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, they may be located in one place. , Or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement it without creative work.

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Abstract

本公开是关于一种信息发送方法及装置、信息接收方法及装置、发送设备和接收设备。其中，信息发送方法包括：在最后一个时域单元的频域上按照梳状方式进行资源映射，该梳状方式包括至少一种映射方式；将频域变换到时域；在变换到时域后，不发送最后一个时域单元末尾设定时长的信息，设定时长由进行资源映射时所采用的目标映射方式确定。本公开实施例，通过在最后一个时域单元的频域上按照梳状方式进行资源映射，将频域变换到时域，并在变换到时域后，不发送最后一个时域单元末尾设定时长的信息，从而减少SL的最后一个符号对NR DL的第一个符号产生的干扰。

Description

信息发送、接收方法及装置、发送设备和接收设备 技术领域
本公开涉及通信技术领域，尤其涉及一种信息发送方法及装置、信息接收方法及装置、发送设备和接收设备。
背景技术
车用无线通信技术(Vehicle to Everything，简称V2X)是将车辆与一切事物相连接的新一代信息通信技术，其中，V代表车辆，X代表任何与车辆交互信息的对象，当前X主要包含车、人、交通路侧基础设施和网络。V2X交互的信息模式包括：车与车之间(Vehicle to Vehicle，简称V2V)、车与路之间(Vehicle to Infrastructure，简称V2I)、车与人之间(Vehicle to Pedestrian，简称V2P)、车与网络之间(Vehicle to Network，简称V2N)的交互。蜂窝(Cellular，简称C)-V2X是指是基于第四代移动通信技术(4th Generation，简称4G)或第五代移动通信技术(5th Generation，简称5G)等蜂窝网通信技术演进形成的车用无线通信技术，它包含了两种通信接口：一种是车、人、路之间的短距离直接通信接口(PC5)，另一种是蜂窝通信接口(Uu)，可实现长距离和更大范围的可靠通信。
V2X将人、车、路、云等交通参与要素有机地联系在一起，不仅可以支撑车辆获得比单车感知更多的信息，促进自动驾驶技术创新和应用；还有利于构建一个智慧的交通体系，促进汽车和交通服务的新模式的新业态发展，对提高交通效率、节省资源、减少污染、降低事故发生率、改善交通管理具有重要意义。
对于C-V2X关键技术，在长期演进(Long Term Evolution，简称LTE)基础上有一些核心性能的提升。在PC5接口上，物理层结构进行增强支持更高的速度，支持全球卫星导航系统同步和更加高效的资源分配机制以及拥塞控制机制等。在Uu接口上，包括对上下行传输进行增强，以及考虑多接入边缘计算能力等。
C-V2X的标准化可以分为3个阶段，LTE-V2X的R14版本标准主要包括业务需求、系统架构、空口技术和安全研究四个方面。LTE-eV2X是指支持V2X高级业务场景的增强型技术研究阶段(R15)，目标是进一步提升V2X直通模式的可靠性、数据速率和时延性能，以部分满足V2X高级业务需求。5G-V2X阶段是指基于5G新空口(New  Radio，简称NR)的技术研究阶段(R16+)，用于支持V2X的高级业务场景，于2018年6月启动研究，将与LTE-V2X或LTE-eV2X形成互补关系。
在V2X的PC5接口上的通信标准制定是以设备到设备(Device to Device，简称D2D)为基础，采用的是广播式的通信方式，即由单车向多车广播发送信息。在LTE V2X中固定子载波间隔为15KHz，调度以子帧为单位，一个子帧长度为1ms，一个子帧中有14个符号。数据在进行速率匹配时，按照14个符号的承载来计算行(raw)比特(bits)，但是在实际映射时，考虑到对基站上下行数据的干扰，引入了保护间隔(Guard period，简称GP)，即最后一个符号实际并不发送任何数据。同时，第一个符号用于自动增益控制(Automatic Gain Control，简称AGC)处理。因此，在最恶劣的情况下，终端会至少损失两个符号的有用信息，造成性能损失。
由于在速率匹配时考虑第一个符号和最后一个符号，但实际发送的时候，最后一个符号并未发送任何数据，从而对解码性能造成了影响，最终影响了系统的性能。
NR V2x中需要采用第一个符号的部分或者全部用于做AGC处理和估计，为了降低AGC的开销，一种方法是，将GP和AGC合并在第一个符号处理，即第一个符号前端空出一段时间不发送任何数据，而最后一个符号照常发送。
当前V2X系统中，没有定时调整机制，如果终端没有及时调整定时提前(timing advance)，就会导致NR发送的数据对NR的上行发送定时不一致，从而对其产生干扰，即直连(sidelink，简称SL)的最后一个符号，对NR下行(downlink，简称DL)的第一个符号产生干扰，且对于覆盖外进入覆盖内的终端，在没有与基站同步时，也极易产生上述干扰。
发明内容
有鉴于此，本申请公开了一种信息发送方法及装置、信息接收方法及装置、发送设备和接收设备，以减少SL的最后一个符号对NR DL的第一个符号产生的干扰。
根据本公开实施例的第一方面，提供一种信息发送方法，应用于发送端，所述方法包括：
在最后一个时域单元的频域上按照梳状方式进行资源映射，所述梳状方式包括至少一种映射方式；
将所述频域变换到时域；
在变换到所述时域后，不发送所述最后一个时域单元末尾设定时长的信息，所述设定时长由进行资源映射时所采用的目标映射方式确定。
在一实施例中，所述在最后一个时域单元的频域上按照梳状方式进行资源映射，包括：
根据所在小区的覆盖半径和接收端的处理能力选择所述目标映射方式；
向所述接收端发送携带所述目标映射方式的信令。
在一实施例中，所述在最后一个时域单元的频域上按照梳状方式进行资源映射，包括：
接收所述发送端所在簇内的簇头发送的携带所述目标映射方式的信令或指示所述目标映射方式的指示信息，所述目标映射方式由所述簇头根据所述发送端和接收端之间的传输距离和所述接收端的处理能力选择。
在一实施例中，所述在最后一个时域单元的频域上按照梳状方式进行资源映射，包括：
确定所述目标映射方式；
向接收端发送携带所述目标映射方式的信令或向所述接收端发送指示所述目标映射方式的指示信息。
根据本公开实施例的第二方面，提供一种信息接收方法，应用于接收端，所述方法包括：
获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式；
基于所述目标映射方式确定设定时长；
不处理所述最后一个时域单元末尾设定时长的信息。
在一实施例中，所述获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式，包括：
接收发送端发送的或所述接收端所在簇内的簇头发送的信令；
从所述信令中获取所述目标映射方式。
在一实施例中，所述获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式，包括：
接收发送端发送的或所述接收端所在簇内的簇头发送的指示信息；
对所述指示信息进行盲检，获取所述目标映射方式。
根据本公开实施例的第三方面，提供一种信息发送装置，应用于发送端，所述装置包括：
映射模块，被配置为在最后一个时域单元的频域上按照梳状方式进行资源映射，所述梳状方式包括至少一种映射方式；
变换模块，被配置为将所述映射模块映射后的所述频域变换到时域；
处理模块，被配置为在所述变换模块变换到所述时域后，不发送所述最后一个时域单元末尾设定时长的信息，所述设定时长由进行资源映射时所采用的目标映射方式确定。
在一实施例中，所述映射模块包括：
第一选择子模块，被配置为根据所在小区的覆盖半径和接收端的处理能力选择所述目标映射方式；
第一发送子模块，被配置为向所述接收端发送携带所述第一选择子模块选择的所述目标映射方式的信令。
在一实施例中，所述映射模块包括：
接收子模块，被配置为接收所述发送端所在簇内的簇头发送的携带所述目标映射方式的信令或指示所述目标映射方式的指示信息，所述目标映射方式由所述簇头根据所述发送端和接收端之间的传输距离和所述接收端的处理能力选择。
在一实施例中，所述映射模块包括：
确定子模块，被配置为确定所述目标映射方式；
第二发送子模块，被配置为向接收端发送携带所述确定子模块确定的所述目标映射方式的信令或向所述接收端发送指示所述目标映射方式的指示信息。
根据本公开实施例的第四方面，提供一种信息接收装置，应用于接收端，所述装置包括：
获取模块，被配置为获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式；
确定模块，被配置为基于所述获取模块获取到的所述目标映射方式确定设定时长；
处理模块，被配置为不处理所述最后一个时域单元末尾所述确定模块确定的设定时长的信息。
在一实施例中，所述获取模块包括：
第一接收子模块，被配置为接收发送端发送的或所述接收端所在簇内的簇头发送的信令；
第一获取子模块，被配置为从所述第一接收子模块接收的所述信令中获取所述目标映射方式。
在一实施例中，所述获取模块包括：
第二接收子模块，被配置为接收发送端发送的或所述接收端所在簇内的簇头发送的指示信息；
盲检获取子模块，被配置为对所述第二接收子模块接收的所述指示信息进行盲检，获取所述目标映射方式。
根据本公开实施例的第五方面，提供一种发送设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
在最后一个时域单元的频域上按照梳状方式进行资源映射，所述梳状方式包括至少一种映射方式；
将所述频域变换到时域；
在变换到所述时域后，不发送所述最后一个时域单元末尾设定时长的信息，所述设定时长由进行资源映射时所采用的目标映射方式确定。
根据本公开实施例的第六方面，提供一种接收设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式；
基于所述目标映射方式确定设定时长；
不处理所述最后一个时域单元末尾设定时长的信息。
根据本公开实施例的第七方面，提供一种计算机可读存储介质，其上存储有计算机指令，该指令被处理器执行时实现上述信息发送方法的步骤。
根据本公开实施例的第八方面，提供一种计算机可读存储介质，其上存储有计算机指令，该指令被处理器执行时实现上述信息接收方法的步骤。
本公开的实施例提供的技术方案可以包括以下有益效果：
通过在最后一个时域单元的频域上按照梳状方式进行资源映射，将频域变换到时域，并在变换到时域后，不发送最后一个时域单元末尾设定时长的信息，从而减少SL的最后一个符号对NR DL的第一个符号产生的干扰。
通过获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式，基于目标映射方式确定设定时长，不处理最后一个时域单元末尾设定时长的信息，从而可以提高信息处理效率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
图1是本申请一示例性实施例示出的一种信息发送方法的流程图；
图2a是本申请一示例性实施例示出的一种映射方式的示意图；
图2b是本申请一示例性实施例示出的另一种映射方式的示意图；
图2c是本申请一示例性实施例示出的另一种映射方式的示意图；
图3是本申请一示例性实施例示出的一种信息接收方法的流程图；
图4是本申请一示例性实施例示出的一种信息接收方法的信令流程图；
图5是根据一示例性实施例示出的一种信息发送装置的框图；
图6是根据一示例性实施例示出的另一种信息发送装置的框图；
图7是根据一示例性实施例示出的另一种信息发送装置的框图；
图8是根据一示例性实施例示出的另一种信息发送装置的框图；
图9是根据一示例性实施例示出的一种信息接收装置的框图；
图10是根据一示例性实施例示出的另一种信息接收装置的框图；
图11是根据一示例性实施例示出的另一种信息接收装置的框图；
图12是根据一示例性实施例示出的一种适用于信息发送装置或信息接收装置的框图；
图13是根据一示例性实施例示出的另一种适用于信息发送装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
图1是本申请一示例性实施例示出的一种信息发送方法的流程图，该实施例从发送端进行描述，如图1所示，该信息发送方法包括：
在步骤S101中，在最后一个时域单元的频域上按照梳状方式进行资源映射，该梳状方式包括至少一种映射方式。
其中，发送端可以为基站，也可以为UE。时域单元可以包括但不局限于符号。
其中，该梳状方式可以包括但不局限于图2a至图2c所示的三种映射方式，其中，图2a至图2c中的黑色块可以表示数据。
在该实施例中，在最后一个时域单元的频域上按照梳状方式进行资源映射可以包括但不局限于以下任一方式：
方式11)根据所在小区的覆盖半径和接收端的处理能力选择目标映射方式，并向接收端发送携带目标映射方式的信令。
在该实施例中，基站根据所在小区的覆盖半径和接收端的处理能力选择目标映射方式，并通过信令通知接收端。
其中，目标映射方式可以通过预设数量的比特来表示，例如通过两比特或一比特表示。当通过两比特表示时，例如可以通过00表示图2a所示目标映射方式对应的取值为2，通过01表示图2b所示目标映射方式对应的取值为4，通过11表示图2c所示目标映射方式对应的取值为6。当通过一比特表示时，例如可以通过0表示图2b所示目标映射方式对应的取值为4，通过1表示图2c所示目标映射方式对应的取值为6，当表示比特为空时，表示图2a所示目标映射方式对应的取值为默认值2。
方式12)接收发送端所在簇内的簇头发送的携带目标映射方式的信令或指示目标映射方式的指示信息，目标映射方式由簇头根据发送端和接收端之间的传输距离和接收端的处理能力选择。
若作为发送端的终端位于簇内，则由簇头根据发送端和接收端之间的传输距离和接收端的处理能力选择目标映射方式，并通过信令或指示信息通知簇内终端。
其中，通知信令可以承载在广播信道中通知终端。指示信息可以为序列，通过不同的序列表征不同的映射方式。
方式13)确定目标映射方式，并向接收端发送携带目标映射方式的信令或向接收端发送指示目标映射方式的指示信息。
作为发送端的终端可以自己确定目标映射方式，并向接收端发送携带目标映射方式的信令或向接收端发送指示目标映射方式的指示信息。
其中，指示信息可以为序列，通过不同的序列表征不同的映射方式。
在步骤S102中，将频域变换到时域。
在步骤S103中，在变换到时域后，不发送最后一个时域单元末尾设定时长的信息，设定时长由进行资源映射时所采用的目标映射方式确定。
其中，设定时长由目标映射方式确定，设定时长为目标映射方式对应的取值分之一。
例如，目标映射方式为图2a所示映射方式时，设定时长为1/2，目标映射方式为图2b所示映射方式时，设定时长为1/4，目标映射方式为图2c所示映射方式时，设定时长为1/6。
在该实施例中，在将频域变换到时域后，不发送最后一个时域单元末尾设定时长的信息，以减少SL的最后一个符号对NR DL的第一个符号产生的干扰。
上述实施例，通过在最后一个时域单元的频域上按照梳状方式进行资源映射，将频域变换到时域，并在变换到时域后，不发送最后一个时域单元末尾设定时长的信息，从而减少SL的最后一个符号对NR DL的第一个符号产生的干扰。
图3是本申请一示例性实施例示出的一种信息接收方法的流程图，该实施例从接收端进行描述，如图3所示，该信息发送方法包括：
在步骤S301中，获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式。
其中，接收端可以为UE。时域单元可以包括但不局限于符号。
在该实施例中，可以通过以下方式获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式：
方式21)接收发送端发送的或接收端所在簇内的簇头发送的信令，并从该信令中获取目标映射方式。
接收端在接收到信令后，可以直接获知目标映射方式，例如，信令中携带的是图2a所示的目标映射方式，则可以直接从信令中获取到目标映射方式对应的取值为2。
方式22)接收发送端发送的或接收端所在簇内的簇头发送的指示信息，对该指示信息进行盲检，获取目标映射方式。
其中，指示信息可以为但不局限于序列，在该实施例中，通过对指示信息进行盲检，可以获得目标映射方式。
在步骤S302中，基于目标映射方式确定设定时长。
在获取到目标映射方式之后，可以确定设定时长为目标映射方式对应的取值分之一。
例如，目标映射方式为图2a所示映射方式时，设定时长为1/2，目标映射方式为图2b所示映射方式时，设定时长为1/4，目标映射方式为图2c所示映射方式时，设定时长为1/6。
在步骤S303中，不处理最后一个时域单元末尾设定时长的信息。
接收端在接收信息后，对最后一个时域单元末尾设定时长的信息不处理，提高信息处理效率。
上述实施例，通过获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式，基于目标映射方式确定设定时长，不处理最后一个时域单元末尾设定时长的信息，从而可以提高信息处理效率。
图4是本申请一示例性实施例示出的一种信息接收方法的信令流程图，该实施例从发送端和接收端交互的角度进行描述，如图4所示，该信息接收方法包括：
在步骤S401中，发送端在最后一个符号的频域上按照梳状方式进行资源映射，该梳状方式包括至少一种映射方式。
在步骤S402中，发送端将频域变换到时域。
在步骤S403中，发送端在变换到时域后，不发送最后一个符号末尾设定时长的信息，设定时长由进行资源映射时所采用的目标映射方式确定。
在步骤S404中，接收端获取最后一个符号的频域上进行资源映射时所采用的目标映射方式。
其中，上述步骤S402和步骤S404并无严格的执行顺序。
在步骤S405中，接收端基于目标映射方式确定设定时长。
在步骤S406中，接收端不处理最后一个符号末尾设定时长的信息。
上述实施例，通过发送端和接收端之间的交互，使得发送端不发送最后一个符号末尾设定时长的信息，从而减少SL的最后一个符号对NR DL的第一个符号产生的干扰，通过不处理最后一个符号末尾设定时长的信息，提高信息处理效率。
图5是根据一示例性实施例示出的一种信息发送装置的框图，该信息发送装置位于发送端，如图5所示，该装置包括：
映射模块51被配置为在最后一个时域单元的频域上按照梳状方式进行资源映射，梳状方式包括至少一种映射方式。
其中，发送端可以为基站，也可以为UE。时域单元可以包括但不局限于符号。
其中，该梳状方式可以包括但不局限于图2a至图2c所示的三种映射方式，其中，图2a至图2c中的黑色块可以表示数据。
变换模块52被配置为将映射模块51映射后的频域变换到时域。
处理模块53被配置为在变换模块52变换到时域后，不发送最后一个时域单元末尾设定时长的信息，设定时长由进行资源映射时所采用的目标映射方式确定。
其中，设定时长由目标映射方式确定，设定时长为目标映射方式对应的取值分之一。
例如，目标映射方式为图2a所示映射方式时，设定时长为1/2，目标映射方式为图2b所示映射方式时，设定时长为1/4，目标映射方式为图2c所示映射方式时，设定时长为1/6。
在该实施例中，在将频域变换到时域后，不发送最后一个时域单元末尾设定时长的信息，以减少SL的最后一个符号对NR DL的第一个符号产生的干扰。
上述实施例，通过在最后一个时域单元的频域上按照梳状方式进行资源映射，将频域变换到时域，并在变换到时域后，不发送最后一个时域单元末尾设定时长的信息，从而减少SL的最后一个符号对NR DL的第一个符号产生的干扰。
图6是根据一示例性实施例示出的另一种信息发送装置的框图，如图6所示，在上述图5所示实施例的基础上，映射模块51可以包括：
第一选择子模块511被配置为根据所在小区的覆盖半径和接收端的处理能力选择目标映射方式。
第一发送子模块512被配置为向接收端发送携带第一选择子模块511选择的目标映射方式的信令。
在该实施例中，基站根据所在小区的覆盖半径和接收端的处理能力选择目标映射方式，并通过信令通知接收端。
其中，目标映射方式可以通过预设数量的比特来表示，例如通过两比特或一比特表示。当通过两比特表示时，例如可以通过00表示图2a所示目标映射方式对应的取值为2，通过01表示图2b所示目标映射方式对应的取值为4，通过11表示图2c所示目标映射方式对应的取值为6。当通过一比特表示时，例如可以通过0表示图2b所示目标映射方式对应的取值为4，通过1表示图2c所示目标映射方式对应的取值为6，当表示比特为空时，表示图2a所示目标映射方式对应的取值为默认值2。
上述实施例，通过根据所在小区的覆盖半径和接收端的处理能力选择目标映射方 式，并向接收端发送携带目标映射方式的信令，以使接收端可以获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式。
图7是根据一示例性实施例示出的另一种信息发送装置的框图，如图7所示，在上述图5所示实施例的基础上，映射模块51可以包括：
接收子模块513被配置为接收发送端所在簇内的簇头发送的携带目标映射方式的信令或指示目标映射方式的指示信息，目标映射方式由簇头根据发送端和接收端之间的传输距离和接收端的处理能力选择。
若作为发送端的终端位于簇内，则由簇头根据发送端和接收端之间的传输距离和接收端的处理能力选择目标映射方式，并通过信令或指示信息通知簇内终端。
其中，通知信令可以承载在广播信道中通知终端。指示信息可以为序列，通过不同的序列表征不同的映射方式。
上述实施例，通过接收发送端所在簇内的簇头发送的携带目标映射方式的信令或指示目标映射方式的指示信息，以获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式。
图8是根据一示例性实施例示出的另一种信息发送装置的框图，如图8所示，在上述图5所示实施例的基础上，映射模块51可以包括：
确定子模块514被配置为确定目标映射方式。
第二发送子模块515被配置为向接收端发送携带确定子模块514确定的目标映射方式的信令或向接收端发送指示目标映射方式的指示信息。
作为发送端的终端可以自己确定目标映射方式，并向接收端发送携带目标映射方式的信令或向接收端发送指示目标映射方式的指示信息。
其中，指示信息可以为序列，通过不同的序列表征不同的映射方式。
上述实施例，通过确定目标映射方式，并向接收端发送携带目标映射方式的信令或向接收端发送指示目标映射方式的指示信息，以使接收端可以获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式。
图9是根据一示例性实施例示出的一种信息接收装置的框图，该装置位于接收端，如图9所示，该装置包括：
获取模块91被配置为获取最后一个时域单元的频域上进行资源映射时所采用的 目标映射方式。
其中，接收端可以为UE。时域单元可以包括但不局限于符号。
确定模块92被配置为基于获取模块91获取到的目标映射方式确定设定时长。
在获取到目标映射方式之后，可以确定设定时长为目标映射方式对应的取值分之一。
例如，目标映射方式为图2a所示映射方式时，设定时长为1/2，目标映射方式为图2b所示映射方式时，设定时长为1/4，目标映射方式为图2c所示映射方式时，设定时长为1/6。
处理模块93被配置为不处理最后一个时域单元末尾确定模块92确定的设定时长的信息。
在接收信息后，对最后一个时域单元末尾设定时长的信息不处理，提高信息处理效率。
上述实施例，通过获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式，基于目标映射方式确定设定时长，不处理最后一个时域单元末尾设定时长的信息，从而可以提高信息处理效率。
图10是根据一示例性实施例示出的另一种信息接收装置的框图，如图10所示，在上述图9所示实施例的基础上，获取模块91可以包括：
第一接收子模块911被配置为接收发送端发送的或接收端所在簇内的簇头发送的信令。
第一获取子模块912被配置为从第一接收子模块911接收的信令中获取目标映射方式。
接收端在接收到信令后，可以直接获知目标映射方式，例如，信令中携带的是图2a所示的目标映射方式，则可以直接从信令中获取到目标映射方式对应的取值为2。
上述实施例，通过接收发送端发送的或接收端所在簇内的簇头发送的信令，并从接收的信令中获取目标映射方式，为根据目标映射方式确定设定时长提供条件。
图11是根据一示例性实施例示出的另一种信息接收装置的框图，如图11所示，在上述图9所示实施例的基础上，获取模块91可以包括：
第二接收子模块913被配置为接收发送端发送的或接收端所在簇内的簇头发送的指示信息。
盲检获取子模块914被配置为对第二接收子模块913接收的指示信息进行盲检，获取目标映射方式。
上述实施例，通过接收发送端发送的或接收端所在簇内的簇头发送的指示信息，对接收的指示信息进行盲检，获取目标映射方式，为根据目标映射方式确定设定时长提供条件。
图12是根据一示例性实施例示出的一种适用于信息发送装置或信息接收装置的框图。例如，装置1200可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等用户设备。
参照图12，装置1200可以包括以下一个或多个组件：处理组件1202，存储器1204，电源组件1206，多媒体组件1208，音频组件1210，输入/输出(I/O)的接口1212，传感器组件1214，以及通信组件1216。
处理组件1202通常控制装置1200的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理元件1202可以包括一个或多个处理器1220来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件1202可以包括一个或多个模块，便于处理组件1202和其他组件之间的交互。例如，处理部件1202可以包括多媒体模块，以方便多媒体组件1208和处理组件1202之间的交互。
当装置1200作为信息发送装置，处理组件1202中的其中一个处理器1220可以被配置为：
在最后一个时域单元的频域上按照梳状方式进行资源映射，梳状方式包括至少一种映射方式；
将频域变换到时域；
在变换到时域后，不发送最后一个时域单元末尾设定时长的信息，设定时长由进行资源映射时所采用的目标映射方式确定。
当装置1200作为信息接收装置，处理组件1202中的其中一个处理器1220可以被配置为：
获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式；
基于目标映射方式确定设定时长；
不处理最后一个时域单元末尾设定时长的信息。
存储器1204被配置为存储各种类型的数据以支持在设备1200的操作。这些数据的示例包括用于在装置1200上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器1204可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件1206为装置1200的各种组件提供电力。电源组件1206可以包括电源管理系统，一个或多个电源，及其他与为装置1200生成、管理和分配电力相关联的组件。
多媒体组件1208包括在装置1200和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件1208包括一个前置摄像头和/或后置摄像头。当设备1200处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1210被配置为输出和/或输入音频信号。例如，音频组件1210包括一个麦克风(MIC)，当装置1200处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1204或经由通信组件1216发送。在一些实施例中，音频组件1210还包括一个扬声器，用于输出音频信号。
I/O接口1212为处理组件1202和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1214包括一个或多个传感器，用于为装置1200提供各个方面的状态评估。例如，传感器组件1214可以检测到设备1200的打开/关闭状态，组件的相对定位， 例如组件为装置1200的显示器和小键盘，传感器组件1214还可以检测装置1200或装置1200一个组件的位置改变，用户与装置1200接触的存在或不存在，装置1200方位或加速/减速和装置1200的温度变化。传感器组件1214可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1214还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1214还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件1216被配置为便于装置1200和其他设备之间有线或无线方式的通信。装置1200可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信部件1216经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，通信部件1216还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置1200可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器1204，上述指令可由装置1200的处理器1220执行以完成上述方法。例如，非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
图13是根据一示例性实施例示出的另一种适用于信息发送装置的框图。装置1300可以被提供为一基站。参照图13，装置1300包括处理组件1322、无线发射/接收组件1324、天线组件1326、以及无线接口特有的信号处理部分，处理组件1322可进一步包括一个或多个处理器。
处理组件1322中的其中一个处理器可以被配置为：
在最后一个时域单元的频域上按照梳状方式进行资源映射，该梳状方式包括至少一种映射方式；
将频域变换到时域；
在变换到时域后，不发送最后一个时域单元末尾设定时长的信息，设定时长由进 行资源映射时所采用的目标映射方式确定。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，上述指令可由装置1300的处理组件1322执行以完成上述信息发送方法。例如，非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中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模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (11)

  1. 一种信息发送方法，其特征在于，应用于发送端，所述方法包括：
    在最后一个时域单元的频域上按照梳状方式进行资源映射，所述梳状方式包括至少一种映射方式；
    将所述频域变换到时域；
    在变换到所述时域后，不发送所述最后一个时域单元末尾设定时长的信息，所述设定时长由进行资源映射时所采用的目标映射方式确定。
  2. 根据权利要求1所述的方法，其特征在于，所述在最后一个时域单元的频域上按照梳状方式进行资源映射，包括：
    根据所在小区的覆盖半径和接收端的处理能力选择所述目标映射方式；
    向所述接收端发送携带所述目标映射方式的信令。
  3. 根据权利要求1所述的方法，其特征在于，所述在最后一个时域单元的频域上按照梳状方式进行资源映射，包括：
    接收所述发送端所在簇内的簇头发送的携带所述目标映射方式的信令或指示所述目标映射方式的指示信息，所述目标映射方式由所述簇头根据所述发送端和接收端之间的传输距离和所述接收端的处理能力选择。
  4. 根据权利要求1所述的方法，其特征在于，所述在最后一个时域单元的频域上按照梳状方式进行资源映射，包括：
    确定所述目标映射方式；
    向接收端发送携带所述目标映射方式的信令或向所述接收端发送指示所述目标映射方式的指示信息。
  5. 一种信息接收方法，其特征在于，应用于接收端，所述方法包括：
    获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式；
    基于所述目标映射方式确定设定时长；
    不处理所述最后一个时域单元末尾设定时长的信息。
  6. 根据权利要求5所述的方法，其特征在于，所述获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式，包括：
    接收发送端发送的或所述接收端所在簇内的簇头发送的信令；
    从所述信令中获取所述目标映射方式。
  7. 根据权利要求5所述的方法，其特征在于，所述获取最后一个时域单元的频域上进行 资源映射时所采用的目标映射方式，包括：
    接收发送端发送的或所述接收端所在簇内的簇头发送的指示信息；
    对所述指示信息进行盲检，获取所述目标映射方式。
  8. 一种信息发送装置，其特征在于，应用于发送端，所述装置包括：
    映射模块，被配置为在最后一个时域单元的频域上按照梳状方式进行资源映射，所述梳状方式包括至少一种映射方式；
    变换模块，被配置为将所述映射模块映射后的所述频域变换到时域；
    处理模块，被配置为在所述变换模块变换到所述时域后，不发送所述最后一个时域单元末尾设定时长的信息，所述设定时长由进行资源映射时所采用的目标映射方式确定。
  9. 一种信息接收装置，其特征在于，应用于接收端，所述装置包括：
    获取模块，被配置为获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式；
    确定模块，被配置为基于所述获取模块获取到的所述目标映射方式确定设定时长；
    处理模块，被配置为不处理所述最后一个时域单元末尾所述确定模块确定的设定时长的信息。
  10. 一种发送设备，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    在最后一个时域单元的频域上按照梳状方式进行资源映射，所述梳状方式包括至少一种映射方式；
    将所述频域变换到时域；
    在变换到所述时域后，不发送所述最后一个时域单元末尾设定时长的信息，所述设定时长由进行资源映射时所采用的目标映射方式确定。
  11. 一种接收设备，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    获取最后一个时域单元的频域上进行资源映射时所采用的目标映射方式；
    基于所述目标映射方式确定设定时长；
    不处理所述最后一个时域单元末尾设定时长的信息。
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