WO2019028699A1 - 信号传输方法及相关设备 - Google Patents

信号传输方法及相关设备 Download PDF

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Publication number
WO2019028699A1
WO2019028699A1 PCT/CN2017/096616 CN2017096616W WO2019028699A1 WO 2019028699 A1 WO2019028699 A1 WO 2019028699A1 CN 2017096616 W CN2017096616 W CN 2017096616W WO 2019028699 A1 WO2019028699 A1 WO 2019028699A1
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WIPO (PCT)
Prior art keywords
resource
signal
message
terminal
frequency domain
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PCT/CN2017/096616
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English (en)
French (fr)
Inventor
才宇
曾勇波
王键
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华为技术有限公司
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Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to US16/637,504 priority Critical patent/US11539490B2/en
Priority to CN201780091460.1A priority patent/CN110692274B/zh
Priority to EP17920659.4A priority patent/EP3644670B1/en
Priority to PCT/CN2017/096616 priority patent/WO2019028699A1/zh
Publication of WO2019028699A1 publication Critical patent/WO2019028699A1/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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • 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
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • 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
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0033—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation each allocating device acting autonomously, i.e. without negotiation with other allocating devices
    • 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
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
    • H04L5/26—Arrangements affording multiple use of the transmission path using time-division multiplexing combined with the use of different frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • 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

Definitions

  • the present application relates to the field of resource allocation and signal transmission, and in particular to a signal transmission method and related equipment.
  • FIG. 1 shows a schematic diagram of a D2D communication network architecture.
  • D2D communication two user terminals that are close to each other use the wireless resources allocated to them by the network device, and the D2D communication is directly performed without using the cellular communication mode previously transited through the network.
  • D2D communication can reduce the load on the network device side, increase the system capacity, and improve the wireless resource utilization of the cellular wireless communication system.
  • the present application provides a signal transmission method and related device.
  • the first terminal requests a network device to send a resource for information
  • the first terminal can simultaneously notify the network device of the signal transmission mode, so that the network device can configure the corresponding terminal for the first terminal.
  • the resource the first terminal may determine the target resource from the configured resources, and use the target resource to transmit the signal by using a corresponding transmission manner.
  • the present application provides a signal transmission method, which is applied to a first terminal side, including: a first terminal sends a first message to a network device; and the first message is used to indicate that the first terminal transmits a signal. And a second message sent by the network device, where the second message is used to indicate that the first terminal transmits the resource of the signal; and the signal is transmitted on the resource.
  • the present application provides a signal transmission method, which is applied to a network device side, and includes: a network device receives a first message sent by a first terminal; and the first message is used to indicate that the first terminal transmits a signal. And a second message sent to the first terminal, where the second message is used to indicate that the first terminal transmits the resource of the signal.
  • the transmission mode when the first terminal transmits a signal is a method of using resources, and can be classified from the following three aspects.
  • the transmission mode is divided according to the maximum frequency domain width, and the maximum frequency domain width can be determined according to the maximum frequency domain width supported by the second terminal receiving the bypass signal when the second terminal receives the signal transmitted by the first terminal.
  • the first is a way to transmit signals using resources within the full bandwidth.
  • the first aspect may include more transmission modes, for example, a method of transmitting signals by using resources within two PRB frequency domain widths, and a method of transmitting signals by using resources within four PRB frequency domain widths.
  • the first type is a method of transmitting a signal to a second terminal whose bandwidth capability is not limited.
  • the transmission mode of the signal is transmitted to the second terminal having the limited frequency bandwidth of one PRB.
  • the first is a way to transmit signals to a Narrow Band Internet of Things (NB-IoT) terminal.
  • NB-IoT Narrow Band Internet of Things
  • eMTC Enhanced Machine Type Communication
  • the first method is to transmit a signal multiple times on different frequency domain resources; the frequency domain width of the frequency domain resource is a maximum frequency domain width when the second terminal receiving the signal receives the bypass signal.
  • the second method is to use a first resource to transmit a signal; the first resource is determined according to a second resource occupied by the bypass signal received by the first terminal.
  • the first message is used by the first terminal to indicate the transmission mode of the signal to the network device.
  • the first message may also be used to indicate the amount of data of the signal transmitted using the transmission mode of the signal.
  • the first message is indicated in the following two ways:
  • the first message includes first indication information and second indication information, where the first indication information is used to indicate a transmission manner of the signal, and the second indication information is used to indicate that the transmission is performed by using the transmission manner. The amount of data in the signal.
  • the first message includes first indication information, where the first indication information is used to indicate a data amount of the signal; and a mapping relationship between the first indication information and a transmission manner of the signal may be predefined by a protocol or Configured by high layer signaling.
  • the first message when the transmission mode of the signal indicated by the first message is a manner of transmitting a signal on the first resource, the first message further includes, according to any one of the foregoing indication manners, the first resource. Or indication information of the second resource.
  • the second message is used to indicate to the first terminal the resource used for transmitting the signal, and has different indication manners in different scenarios.
  • the network device sends the third indication information and the fourth indication information to the first terminal by using the second message.
  • the network device sends the third indication information to the first terminal by using the second message.
  • the network device sends the third indication information and the fifth indication information to the first terminal by using the second message.
  • the network device sends the third indication information, the fourth indication information, and the fifth indication information to the first terminal by using the second message.
  • the network device sends the third indication information, the fourth indication information, and the sixth indication information to the first terminal by using the second message.
  • the network device sends the third indication information and the sixth indication information to the first terminal by using the second message.
  • the network device sends the third indication information, the fifth indication information, and the sixth indication information to the first terminal by using the second message.
  • the eighth transmission mode the network device sends the third indication information, the fourth indication information, the fifth indication information, and the sixth indication information to the first terminal by using the second message.
  • the network device sends the fourth indication information, the fifth indication information, and the sixth indication information to the first terminal by using the second message.
  • the tenth indication manner the network device sends the fifth indication information and the sixth indication information to the first terminal by using the second message.
  • the network device sends the fourth indication information and the sixth indication information to the first terminal by using the second message.
  • the network device sends the sixth indication information to the first terminal by using the second message.
  • the third indication information is used to indicate the resource pool
  • the fourth indication information is used to indicate the third resource
  • the fifth indication information is used to indicate the transmission mode
  • the sixth indication information is used.
  • the starting frequency domain position or ending frequency domain position of the resource that can be used when indicating the transmission of the signal, or a narrow band that can be used when indicating the transmission of the signal.
  • the present application provides a first terminal, including: a transmitter, a receiver, and a processor, where
  • the processor is configured to configure a first message, where the first message is used to indicate a transmission mode of the first terminal to transmit a signal; the transmitter is configured to send the first message to a network device; and the receiver is configured to receive And a second message sent by the network device, where the second message is used to indicate that the first terminal transmits the resource of the signal; and the transmitter is further configured to transmit the signal on the resource.
  • the respective devices included in the first terminal of the third aspect may be used to perform the method of the above first aspect, and may be specifically referred to the above description.
  • the present application provides another first terminal, including: a sending unit, a receiving unit, and a processing unit, where the processing unit is configured to configure a first message, where the first message is used to indicate the first a transmission mode of a terminal transmission signal; the sending unit is configured to send the first message to a network device; the receiving unit is configured to receive a second message sent by the network device, where the second message is used to indicate The first terminal transmits a resource of the signal; the sending unit is further configured to transmit the signal on the resource.
  • the functional unit included in the first terminal of the fourth aspect may be used to perform the method of the above first aspect, and may be specifically referred to the foregoing description.
  • the application provides a network device, including: a transmitter, a receiver, and a processor, where
  • the receiver is configured to receive a first message sent by the first terminal, where the first message is used to indicate a transmission mode of the signal transmitted by the first terminal, and the processor is configured to configure a second message, where the second message is used by the receiver.
  • the present application provides another network device, including: a sending unit, a receiving unit, and a processing unit, where the receiving unit is configured to receive a first message sent by a first terminal; Indicating the first a transmission mode of the terminal transmission signal; the processing unit is configured to configure a second message, where the second message is used to indicate that the first terminal transmits the resource of the signal; and the sending unit is configured to send to the first terminal Sending the second message.
  • the functional unit included in the network device of the sixth aspect can be used to perform the method of the foregoing second aspect, and the specific description can be referred to.
  • the present application provides a computer readable storage medium storing instructions that, when run on a computer, cause the computer to perform the first aspect and the first Any one of the various possible implementations on the one hand.
  • the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform any of the first aspect and each of the possible implementations of the first aspect.
  • the present application provides a computer readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the second aspect and the foregoing Any of the various possible implementations of the two aspects.
  • the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform any one of the various possible implementations of the second aspect and the second aspect described above.
  • the first terminal When the first terminal is configured to request the network device to transmit the information, the first terminal can simultaneously notify the network device of the signal transmission mode, so that the network device can configure the corresponding resource for the first terminal, and the first terminal can be configured from the resource. Determine the target resource and use the target resource to transmit the signal through the corresponding transmission method.
  • FIG. 1 is a schematic diagram of a network structure of a D2D communication system
  • FIG. 2 is a schematic diagram of time-frequency domain resources in a D2D communication system
  • FIG. 3 is a schematic diagram of a narrow band division provided by the present application.
  • 4a-4b are schematic structural diagrams of two first messages provided by the present application.
  • FIG. 5 is a schematic diagram of a relative position of a third resource in a narrow band provided by the present application.
  • FIG. 6 is a schematic flow chart of a signal transmission method provided by the present application.
  • FIG. 7 is a schematic structural diagram of hardware of a first terminal provided by the present application.
  • FIG. 8 is a hardware structural diagram of a network device provided by the present application.
  • FIG. 9 is a functional block diagram of a first terminal and a network device provided by the present application.
  • FIG. 2 shows a schematic diagram of time-frequency domain resources in a D2D communication system.
  • the length of one slot is 0.5 ms, and the general configuration includes seven single-carrier frequency division multiple access (SC-FDMA) symbols.
  • One subframe consists of two slots and has a size of 1 ms.
  • One radio frame includes 10 subframes, and one radio frame has a length of 10 ms.
  • the D2D sidelink bandwidth includes multiple subcarriers, and the number of subcarriers corresponding to different bypass bandwidths is different.
  • the bandwidth can be represented by the number of physical resource blocks (PRBs) included in the frequency domain.
  • PRBs physical resource blocks
  • a unit corresponding to 0.5 ms in the time domain and corresponding to 12 consecutive subcarriers in the frequency domain is called a physical resource block.
  • Each physical resource block is indicated by a time domain index on the time domain and by a frequency domain index on the frequency domain.
  • the time domain index may be a subframe index
  • the frequency domain index may be a PRB index.
  • the physical resource block shown in FIG. 2 is collectively indicated by time domain index 0 and frequency domain index 0.
  • FIG. 2 is a schematic diagram of time-frequency domain resources of Long Term Evolution (LTE) technology.
  • LTE Long Term Evolution
  • New RAT New Radio Access Technology
  • 4.5G, 5G, etc., the definition and name of the subframe, PRB, PRB-pair, etc., and the sub-carrier width, the length of the slot, and the transmitted symbols may change.
  • the present application is equally applicable to the changed scenario.
  • the network device configures a radio resource for the first terminal, and the first terminal uses the configured radio resource and the second terminal to perform signal transmission.
  • D2D communication includes sidelink communication, sidelink discovery, and vehicle-to-Vehicle sidelink communication.
  • the first terminal sends the request information to the network device, so that the network device allocates a wireless resource for the bypass signal, such as bypass discovery, bypass communication, and vehicle-to-vehicle bypass communication.
  • a wireless resource for the bypass signal such as bypass discovery, bypass communication, and vehicle-to-vehicle bypass communication.
  • the first terminal requests radio resources from the network device through the Sidelink UEInformation message, and sets the value of the field discTxResourceReq in the Sidelink UEInformation to indicate the number of messages to be sent.
  • the network device receives the request sent by the first terminal, and configures the radio resource for the first terminal.
  • the network device indicates a resource pool and indicates at least one reference PRB-pair in the resource pool for the first terminal.
  • the number of resource blocks (prb-Num), the starting resource block index (prb-Start), the ending resource block index (prb-End), and the resource pool are specifically indicated.
  • Time domain resources the physical resource block in the resource pool configured by the network device for the first terminal is not necessarily dedicated to the first terminal, and the physical resource block and the network device in the resource pool are configured to resource pools of other first terminals.
  • the physical resource blocks in the middle may be completely different, partially identical, or all the same.
  • the time domain index and the frequency domain index of the reference PRB-pair need to be specifically indicated.
  • the first terminal determines which PRB-pairs in the resource pool are used to transmit signals according to the reference PRB-pair, and transmits the signals using the determined PRB-pair.
  • the first terminal can determine the PRB-pair by a fixed algorithm.
  • the default first terminal determines a method in a fixed manner when transmitting a signal.
  • the PRB-pair to be used that is, the first terminal transmits the signal using the same transmission method.
  • the first terminal may transmit signals using a plurality of transmission methods other than the above-described one transmission mode.
  • different transmission modes use different PRB-pairs.
  • the resource pool configured by the network device for the first terminal includes PRB-pair1, PRB-pair 2, and PRB-pair3, and indicates that the reference PRB-pair is PRB-pair 1.
  • PRB-pair 1 and the PRB-pair 3 are used correspondingly
  • PRB-pair 1 and the PRB-pair 2 are used correspondingly.
  • the first terminal transmits the signal by using PRB-pair1 and PRB-pair3 through transmission mode 1.
  • the network device side does not know which transmission mode the first terminal uses. It may be considered that the first terminal transmits the message by using PRB-pair1 and PRB-pair2 through transmission mode 2.
  • the network device may configure PRB-pair3 for use by other first terminals, and prevent other first terminals from using PRB-pair2, causing collisions between the first terminals on PRB-pair3, and PRB-pair2 Was wasted.
  • the present application proposes a signal transmission method.
  • the first terminal When the first terminal requests wireless resources from the network device, the first terminal reports which transmission modes are to be used. Transmission signal. At the same time, when configuring the radio resource for the first terminal, the network device may indicate the transmission mode, so that the first terminal determines the resource used when transmitting the signal by using the indicated transmission manner.
  • a resource may be a PRB-pair defined in the prior art, or may be a physical resource block occupying any bandwidth in the time domain and occupying any bandwidth in the frequency domain, and the arbitrary time length and any bandwidth may be used by the network device.
  • the configuration or the agreement is not limited by this application.
  • the transmission mode of the signal is a manner in which the first terminal uses the resource when transmitting the signal.
  • the transmission mode is divided according to the maximum frequency domain width.
  • it can be divided into multiple transmission modes, that is, ways of transmitting signals using resources within different frequency domain widths.
  • the maximum frequency domain width may be determined according to a maximum frequency domain width supported when the second terminal receiving the signal transmitted by the first terminal receives the bypass signal.
  • the maximum frequency domain width can be measured in units of Hertz (Hz).
  • each terminal supports different bandwidth capabilities, and some terminals can only send and receive signals within a limited bandwidth.
  • some terminals support transmitting and receiving signals in all bypass bandwidths, and some terminals only support transmitting and receiving signals in the frequency domain width of 6PRB.
  • the terminal only supports transmitting and receiving signals within the frequency domain width of 1 PRB.
  • the bandwidth capability of the second terminal receiving the signal may be any one of the above, and the following transmission modes are described in detail below by way of example.
  • the first is a way to transmit signals using resources within full bandwidth.
  • This transmission mode is applicable to a scenario in which the bandwidth capability of the second terminal receiving the signal is not limited. If the frequency domain width of the configured resource pool exceeds the bypass bandwidth, the first terminal may use any resource within the bypass bandwidth of the resource pool to transmit signals, and the frequency domain width of the configured resource pool does not exceed the bypass bandwidth. In the case of the first terminal, the first terminal can use any resource in the resource pool to transmit signals. For example, when the first transmission mode is used, the first terminal can use the PRB-pai r transmission signal with the frequency domain index of 0 and 1 for the first time. The second time, the PRB-pai r signal with the frequency domain index of 10, 11 can be used for transmission, and the signals transmitted by the above two signals may be the same signal or different signals.
  • the transmission mode is applicable to a scenario in which the second terminal of the received signal has a limited bandwidth of 6 PRBs, and is of course applicable to a scenario in which the bandwidth capability of the second terminal is not limited. If the frequency domain width of the configured resource pool exceeds the frequency range of the 6 PRB frequency domain, the first terminal may use any resource within the 6 PRB frequency domain width in the resource pool to transmit signals, and the frequency domain width of the configured resource pool does not exceed 6 PRB frequency. In the case of a domain width, the first terminal can transmit signals using any resource within the resource pool.
  • the first terminal can transmit the PRB-pair with the frequency domain index of 0 and 1 for the first time, and the PRB-pair with the frequency domain index of 2 and 3 for the second time.
  • the first terminal can transmit the signal using the PRB-pair with the frequency domain index of 4 and 5.
  • the fourth time can use the PRB-pair transmission signal with the frequency domain index of 0 and 1, and the signal transmitted four times can be used. It is the same signal or it can be a different signal.
  • the two PRB-pairs (PRB-pair0 and PRB-pair5) with the largest interval in the frequency domain have a span of 6 ⁇ in the frequency domain and each PRB-pair is occupied in the frequency domain.
  • the second transmission mode is a manner in which the first terminal uses the resources in the frequency domain width of the six PRBs to transmit the same signal multiple times.
  • the same signal may be the same physical signal, or may be a different physical signal for transmitting the same message.
  • the second transmission mode is a manner in which the first terminal uses the resources in the frequency domain width of the 6 PRB to transmit the same signal multiple times in one cycle. That is, the second terminal transmits the same signal multiple times in the frequency domain width of the same 6 PRBs used in each period, for example, resources in the frequency domain width of 0-5 PRB can be used in the first period.
  • the same signal is transmitted multiple times, and the same signal can be transmitted multiple times in the second period using resources within the frequency domain of 6-11 PRB.
  • the transmission mode is applicable to a scenario in which the second terminal of the received signal has a limited bandwidth of one PRB, and is of course applicable to the frequency domain of the second terminal with unlimited bandwidth capability or a limited bandwidth of 6 PRBs. Width of the scene. If the frequency domain width of the configured resource pool exceeds the frequency range of the 1 PRB frequency domain, the first terminal may use any resource within the frequency range of the 1 PRB in the resource pool to transmit signals, and the frequency domain width of the configured resource pool does not exceed 1 PRB frequency. In the case of a domain width, the first terminal can transmit signals using any resource within the resource pool.
  • the first terminal may use two PRB-pair transmission signals whose time domain indexes are 0 and 1 and the frequency domain index is 0, or only the time domain index is 0, and the frequency is A PRB-pair transmission signal with a domain index of 0.
  • the third transmission mode is a manner in which the first terminal uses the resources in the frequency domain width of one PRB to transmit the same signal multiple times.
  • the third transmission mode is a manner in which the first terminal uses the resources in the frequency domain width of the 1 PRB to transmit the same signal multiple times in one cycle.
  • a resource may be a physical resource block occupying any length in the time domain and occupying any bandwidth in the frequency domain, which is not limited in this application.
  • the transmission mode is divided according to the second terminal receiving the signal.
  • the first type is a method of transmitting a signal to a second terminal whose bandwidth capability is not limited.
  • the signal transmitted by the first terminal can be received by the second terminal whose bandwidth capability is not limited.
  • a method of transmitting a signal to a second terminal having a limited bandwidth of 6 PRBs in the frequency domain width In this transmission mode, the signal transmitted by the first terminal can be received by the second terminal with a limited bandwidth of 6 PRBs.
  • the transmission mode of the signal is transmitted to the second terminal having the limited frequency bandwidth of one PRB.
  • the signal transmitted by the first terminal can be received by the second terminal with a limited bandwidth of 1 PRB.
  • transmission modes are only exemplary. In the specific implementation, there may be more transmission modes, such as a method of transmitting signals to a second terminal with a limited bandwidth of 2 PRBs in a frequency domain width, and a limited bandwidth.
  • the manner of transmitting signals for the second terminal of the frequency domain width of the four PRBs, etc., is not limited in this application.
  • the first is the way to transmit signals to the NB-IoT terminal.
  • the NB-IoT terminal only supports transmitting and receiving signals in the frequency domain width within one PRB.
  • the way to transmit signals to eMTC terminals the eMTC terminal only supports transmitting and receiving signals in the frequency domain width within 6 PRBs.
  • the transmission method can be divided into the following two types.
  • the first method is to transmit a signal multiple times on different frequency domain resources; the frequency domain width of the frequency domain resource is a maximum frequency domain width when the second terminal receiving the signal receives the bypass signal.
  • the first transmission mode is a manner of transmitting the same signal multiple times on different frequency domain resources in the same period.
  • a bypass bandwidth or resource pool can be divided into a plurality of narrowbands of the same frequency domain width in the frequency domain, and each narrowband is identified by a narrowband index.
  • the frequency domain width of each narrowband is determined according to the maximum frequency domain width supported by the second terminal receiving the signal. For example, when the limited bandwidth of the second terminal receiving the signal is 6 PRBs, a bypass with a total bandwidth of 3.24 Mhz can be divided into three narrow bands with a frequency domain width of 6 PRB, and the three narrow bands can be indexed. 0-2 logo.
  • the way to transmit signals multiple times on different frequency domain resources is equivalent to transmitting the same signal multiple times on different narrowbands.
  • the same signal may be transmitted multiple times on multiple narrowbands of the same resource pool, or the same signal may be transmitted multiple times on narrowbands in different resource pools.
  • the narrowband division in a resource pool configured for the terminal is as shown in the left figure of FIG. 3, and the first terminal may be indexed for the first time.
  • the signal is transmitted on two PRB-pairs in the narrow band of 0, and the second time is transmitted on the two PRB-pairs in the narrow band with index 1, and the third time is available in the index.
  • Signals are sent on two PRB-pairs in a narrow band of 2, and so on.
  • the number of times the first terminal sends a signal may be configured by the network device. With the first transmission method, the second terminal only needs to receive signals on one of the narrowbands to improve efficiency.
  • the first terminal may send a signal on two PRB-pairs in a narrow band with index 0 in resource pool 1 for the first time, and two PRBs in a narrow band with index 1 in resource pool 2 for the second time. Send a signal on the pair.
  • the frequency domain width of the resource pool configured to the terminal may be the same as the frequency domain width of the narrowband.
  • the second method is to use a first resource to transmit a signal; the first resource is determined according to a second resource occupied by the bypass signal received by the first terminal.
  • the first terminal may determine the first resource according to the second resource occupied by the received one or more bypass signals, where the received one or more bypass signals may be sent by the second terminal or other terminal. of.
  • the present application exemplarily proposes the following possible implementations.
  • the first terminal directly uses the frequency domain index of the second resource occupied by the bypass signal received by any one time as the frequency domain index of the first resource.
  • the first terminal determines a frequency domain index of the second resource that is occupied by the bypass signal received by any one time, and adds n to the frequency domain index to obtain a frequency domain index of the first resource, where n is positive.
  • the second resource occupied by the last received bypass signal is a PRB-pair whose frequency domain index is 0 and 1, respectively, and 2 is added to 0 and 1, respectively, to obtain the frequency domain index 2 of the first resource and 3. It is equivalent to the first resource being two PRB-pairs with frequency domain indexes of 2 and 3.
  • the terminal may arbitrarily determine the time domain index of the second resource to determine the second resource.
  • the bypass bandwidth can be divided into several narrowbands, and the first terminal can determine the narrowband where the second resource occupied by any one of the received bypass signals is located, and select one of the narrowbands. Or multiple resources as the first resource.
  • the method for determining the first resource according to the second resource occupied by the received bypass signal is not limited.
  • the first resource may be determined according to the second resource by other methods, which is not limited in this application.
  • the first terminal when the first terminal transmits a signal, it is possible to use any one or more of the above transmission methods.
  • the first terminal when the first terminal sends a message to the network device to request the resource for transmitting the signal, the first terminal can simultaneously notify the network device of the signal transmission mode supported by the first terminal, or the signal transmission that the first terminal wishes to use. the way.
  • the message sent by the first terminal to the network device may be referred to as a first message.
  • the first message can be implemented as RRC layer signaling, Medium Access Control Control Element (MAC CE), and Sidelink Control Information (SCI).
  • MAC CE Medium Access Control Control Element
  • SCI Sidelink Control Information
  • the first message may be implemented by adding a field in an existing message or by using a reserved field, or by adding a new message type.
  • the function of the first message is to request a resource for the first terminal to send a signal to the network device, and the first message refers to Show how the signal is transmitted.
  • the first message further indicates the amount of data of the signal transmitted using the transmission mode of the signal.
  • the first message can indicate the above two information in the following two alternative manners, which are described in detail below.
  • the first message includes first indication information and second indication information, where the first indication information is used to indicate a transmission manner of the signal, and the second indication information is used to indicate that the transmission is performed by using the transmission manner.
  • the amount of data in the signal may be the number of signals.
  • a plurality of first indication information and a plurality of second indication information corresponding to the plurality of first indication information may be included.
  • a field or an information element (IE) may be defined to include a first indication information and a corresponding second indication information.
  • each IE or field may be implemented as a SL-DiscTxResourceReq field as follows:
  • the SL-DiscTxResourceReq field includes two fields, a transmissionType and a discTxResourceReq.
  • the transmissionType is the first indication information indicating the transmission mode of the signal.
  • the transmission mode indicated here may be any one of the above-described transmission method divided according to the maximum frequency domain width or the transmission method divided according to the enhancement method.
  • the transmissionType may directly indicate the maximum frequency domain width, for example, directly indicating 6PRB, 1PRB, and the like.
  • the transmissionType field may also indicate other transmission modes as described above, and the application does not limit the application.
  • the discTxResourceReq is the second indication information indicating the amount of data of the signal transmitted using the transmission mode indicated by the transmissionType.
  • the amount of data can be measured by the number of signals.
  • each SL-DiscTxResourceReqIE or field directly indicates the mode of transmission through the transmissionType field.
  • the first terminal indicates the bypass discovery mode in the first message sent, and indirectly indicates the transmission mode through the bypass discovery mode, and there is a corresponding correspondence between the bypass discovery mode and the transmission mode. relationship.
  • mode A there are two discovery modes: mode A and mode B.
  • the first terminal sends a UE-to-Network Relay Discovery Announcement message to the second terminal.
  • the model B the first terminal sends the user equipment to the network to the second terminal.
  • UE-to-Network Relay Discovery Response message the manner in which the signal is transmitted multiple times on different frequency domain resources in the foregoing third aspect is used, and the first terminal sends the UE-to-Network.
  • Relay In Discovery Response the way to transmit signals using the first resource is used. Therefore, as shown in the following table, model A corresponds to the manner in which signals are transmitted multiple times on different frequency domain resources, and model B corresponds to the manner in which signals are transmitted using the first resource.
  • each IE or field can also indirectly indicate the transmission mode through the bypass discovery mode.
  • Each IE can be implemented as a SL-DiscTxResourceReq field as follows:
  • the SL-DiscTxResourceReq field includes two fields, ModeIndication and discTxResourceReq.
  • the ModeIndication is the first indication information, which directly indicates the bypass discovery mode used by the transmission signal, and indirectly indicates the transmission mode corresponding to the bypass discovery mode.
  • the discTxResourceReq is the second indication information, indicating the data amount of the signal corresponding to the transmission mode indicated by the ModeIndication field.
  • the first message includes first indication information, where the first indication information is used to indicate a data amount of the signal; and a mapping relationship between the first indication information and a transmission manner of the signal may be predefined by a protocol or Configured by high layer signaling.
  • the network device and the first terminal both know in advance a mapping relationship between the first indication information and a transmission manner of the signal.
  • the first message may include a plurality of first indication information, and each of the first indication information corresponds to one transmission mode.
  • the first message may include a SL-DiscTxResourceReq field as follows:
  • the three fields discTxResourceReqFullBW, discTxResourceReq6PRB, and discTxResourceReq1PRB included in the SL-DiscTxResourceReq field are all the first indication information.
  • the discTxResourceReqFullBW corresponds to a method of transmitting a signal using a resource within the full bypass bandwidth, indicating the amount of data of a signal in a manner of transmitting a signal using a resource within the full bypass bandwidth.
  • the discTxResourceReq6PRB corresponds to a method of transmitting a signal using a resource within the 6PRB, and indicates a data amount of a signal in a manner of transmitting a signal using a resource within the 6PRB.
  • discTxResourceReq1PRB corresponds to the way in which signals are transmitted using resources within 1 PRB, indicating the use of 1PRB The amount of data within the signal within the way the resource is transmitted. It should be understood that the foregoing only exemplarily lists three types of first indication information. In a specific implementation, more first indication information may be included, for example, corresponding to resource transmission within 2PRB or within 4PRB. The first indication information of the manner of the signal, and the like.
  • the first message when the transmission mode of the signal indicated by the first message is a manner of transmitting a signal on the first resource, the first message further includes, according to any one of the foregoing indication manners, the first resource. Or indication information of the second resource.
  • the second resource is a resource occupied by the bypass signal received by the first terminal.
  • the indication function of the first message may be implemented in other manners, which is not limited in this application.
  • the first terminal may notify the transmission mode of the signal supported by the first terminal of the network device, or the transmission mode of the signal that the first terminal wishes to use, and the signal transmitted by using each transmission mode.
  • the amount of data can cause the network device to allocate resources to the first terminal according to different transmission modes and data amounts.
  • the network device after receiving the first message sent by the first terminal, the network device sends a message to the first terminal to indicate the resource allocated to the first terminal.
  • the message sent by the network device to the first terminal may be referred to as a second message.
  • the second message can be implemented as RRC layer signaling, Medium Access Control Control Element (MAC CE), and Sidelink Control Information (SCI).
  • MAC CE Medium Access Control Control Element
  • SCI Sidelink Control Information
  • the second message may be implemented by adding a field in an existing message or by using a reserved field, or by adding a new message type.
  • the function of the second message is to indicate the resource for transmitting the signal to the first terminal.
  • the manner in which the network device indicates the resource to the first terminal by using the second message is different. The various indications of the second message are described in detail below.
  • the network device sends the third indication information and the fourth indication information to the first terminal by using the second message.
  • the third indication information is used to indicate the resource pool, and the fourth indication information is used to indicate the third resource.
  • the resource pool and the third resource are used by the first terminal to determine a target resource for transmitting the signal.
  • the third indication information may indicate the resource pool by using the frequency domain index and the time domain index, and the fourth indication information may also indicate the third resource by using the frequency domain index and the time domain index.
  • the third indication information and the fourth indication information may be included in the same second message, or may be included in the plurality of second messages, respectively.
  • the network device may send a second message including only the third indication information to the first terminal for the first time, and send a second message including only the fourth indication information to the first terminal for the second time, and send the second message twice.
  • the message sends the third indication information and the fourth indication information to the first terminal.
  • the third indication information may be implemented as the following SL-TF-ResourceConfig field or IE:
  • the SL-TF-ResourceConfig field or the IE includes frequency domain location information and time domain location information of a resource pool configured by the network device for the first terminal.
  • the frequency domain location information of the resource pool includes: a number of PRBs (prb-Num), a PRB start index (prb-Start), and a PRB end index (prb-End).
  • the resource pool configured by the network device for the first terminal includes PRBs in the frequency domain: PRBs whose index is greater than or equal to prb-start and less than prb-start+prb-num, and indexes greater than prb-end–prb-num and less than Or equal to the PRB of prb-end.
  • the time domain location of the resource pool is jointly indicated by the SL-OffsetIndicator field and the SubframeBitmapSL field.
  • the fourth indication information may be implemented as the following SL-TF-IndexPair field or IE:
  • the SL-TF-IndexPair field or the IE includes a time domain index (discSF-Index) and a frequency domain index (discPRB-Index) of the third resource.
  • the first terminal After receiving the second message, the first terminal determines, according to the resource pool indicated by the second message, the third resource, and the transmission mode indicated in the first message, that the signal is used when transmitting the signal by using the transmission mode in the first message.
  • Target resources Among them, the target resource belongs to the resource pool.
  • the first terminal determines, according to the third resource and the transmission mode, the target resource used for transmitting the signal multiple times from the resource pool.
  • the first message indicates two transmission modes in sequence: transmission mode 1 (the way of transmitting signals multiple times on different frequency domain resources), and transmission mode 2 (using the first resource to transmit signals) ).
  • the first message also indicates the amount of data using the transmission mode 1 and the signal transmitted using the transmission mode 2, as shown in Table 3 below:
  • the frequency domain index of the resource pool is 0-35, and three third resources are sequentially indicated, and the frequency domain indexes are 0, 10, and 20, respectively.
  • the first terminal may separately determine target resources when transmitting three signals, as follows:
  • the first third resource (frequency domain index 0), when the first signal of the corresponding data amount is transmitted by the transmission mode 1, the target resource used: the resource with the frequency domain index of 0, 1 is used. (Used for the first transmission), resources with a frequency domain index of 6, 7 (used for the second transmission), resources with a frequency domain index of 12, 13 (used for the third transmission), and so on.
  • the target resource used is: the resource with the frequency domain index of 10, 11 (Used for the first transmission), resources with a frequency domain index of 16, 17 (used for the second transmission), resources with a frequency domain index of 22, 23 (used for the third transmission), and so on.
  • the third third resource determines the target resource used when transmitting the corresponding signal by the transmission mode 2: the resource with the frequency domain index of 20, 21 (used for each transmission) .
  • the number of times the signal is transmitted may be configured by the network device or specified by the protocol.
  • the first terminal determines, according to the resource pool indicated by the second message, the third resource, and the transmission mode indicated in the first message, to use the transmission manner in the first message.
  • the target resource used when transmitting the corresponding signal may be different from the above example.
  • the network device sends the third indication information to the first terminal by using the second message.
  • the third indication information is used to indicate a resource pool, and the first terminal determines a target resource for transmitting the signal.
  • the third indication information may indicate the resource pool by using a frequency domain index and a time domain index.
  • the first indication manner is the same as the first indication manner, and the third indication information may be implemented as a SL-TF-ResourceConfig field or an IE, and the related description may be referred to.
  • the first terminal may determine to use the first message according to the resource pool indicated in the second message, the transmission mode indicated in the first message, and the third resource determined by the first terminal autonomously.
  • the target resource used when transmitting the signal belongs to the resource pool.
  • the first terminal determines, according to the third resource and the transmission mode, the target resource used for transmitting the signal multiple times from the resource pool.
  • a specific example is similar to the example in the first indication manner described above, except that the first terminal autonomously determines three third resources, and the frequency domain indexes are 0, 10, and 20, respectively.
  • the target resource determined by the first terminal refer to the example in the first indication manner, and details are not described herein.
  • the network device sends the third indication information and the fifth indication information to the first terminal by using the second message.
  • the third indication information is used to indicate a resource pool, and the fifth indication information is used to indicate a transmission mode.
  • the third indication information may indicate the resource pool by using a frequency domain index and a time domain index.
  • the resource pool and transmission mode are used by the first terminal to determine a target resource for transmitting signals.
  • the third indication information and the fifth indication information may be included in the same second message, or may be included in the plurality of second messages, respectively.
  • the third indication information may be implemented as a SL-TF-ResourceConfig field or an IE. Please refer to the related description above.
  • the fifth indication information may be implemented as a transmissionType field, and may refer to a related description in the first indication manner of the first message.
  • the first terminal After receiving the second message, the first terminal determines, according to the resource pool indicated in the second message, the transmission mode, and the third resource that is determined by the first terminal, to use the transmission mode in the second message to send a signal.
  • the target resource used belongs to the resource pool.
  • the first terminal determines, according to the third resource and the transmission mode, the target resource used for transmitting the signal multiple times from the resource pool.
  • the second message also indicates two transmission modes: transmission mode 1 (the manner in which the signal is transmitted multiple times on different frequency domain resources), and transmission mode 2 (the manner in which the signal is transmitted using the first resource).
  • the first terminal transmits two signals using transmission mode 1: signal 1, signal 2.
  • the first terminal transmits one signal using transmission mode 2: signal 3.
  • the first terminal autonomously determines a third resource corresponding to each of the three signals: the frequency domain index is 0, 10, and 20, respectively.
  • the target resource when the signal 1 is transmitted using the transmission mode 1 is determined: the resource with the frequency domain index of 0 and 1 (used for the first transmission)
  • the resources in the frequency domain index are 6, 7 (used in the second transmission), the resources in the frequency domain index are 12, 13 (used in the third transmission), and so on.
  • the target resource when the signal 2 is transmitted using the transmission mode 1 is determined: the resource with the frequency domain index of 10 and 11 (used for the first transmission)
  • the resources in the frequency domain index are 16, 17 (used in the second transmission), the resources in the frequency domain index are 22, 23 (used in the third transmission), and so on.
  • the target resource when the signal 3 is transmitted using the transmission mode 2 is determined: the resource whose frequency domain index is 20 or 21 (used for each transmission).
  • the number of times the signal is transmitted may be configured by the network device or specified by the protocol.
  • the network device sends the third indication information, the fourth indication information, and the fifth indication information to the first terminal by using the second message.
  • the third indication information is used to indicate the resource pool
  • the fourth indication information is used to indicate the third resource
  • the fifth indication information is used to indicate the transmission mode.
  • the third indication information may indicate the resource pool by using the frequency domain index and the time domain index
  • the fourth indication information may also indicate the third resource by using the frequency domain index and the time domain index.
  • the resource pool, the third resource, and the transmission mode are used by the first terminal to determine a target resource for transmitting the signal.
  • the third indication information, the fourth indication information, and the fifth indication information may be included in the same second message, or may be included in the plurality of second messages, respectively.
  • the third indication information may be implemented as a SL-TF-ResourceConfig field or an IE
  • the fourth indication information may be implemented as a SL-TF-IndexPair field or an IE
  • the fifth indication information may be implemented as a transmissionType field. Please refer to the related description above, and will not be described here.
  • the third resource determines a target resource used when the signal is transmitted using the transmission mode in the second message. Among them, the target resource belongs to the resource pool.
  • the first terminal determines, according to the third resource and the transmission mode, the target resource used for transmitting the signal multiple times from the resource pool.
  • the second message also indicates two transmission modes: transmission mode 1 (the manner in which the signal is transmitted multiple times on different frequency domain resources), and transmission mode 2 (the manner in which the signal is transmitted using the first resource).
  • transmission mode 1 the manner in which the signal is transmitted multiple times on different frequency domain resources
  • transmission mode 2 the manner in which the signal is transmitted using the first resource.
  • the second message also indicates three third resources (the frequency domain indices are 0, 10, 20, respectively).
  • the first terminal transmits two signals using transmission mode 1: signal 1, signal 2.
  • the first terminal determines, according to the transmission mode 1, the first third resource (frequency domain index 0), the target resource when the signal 1 is transmitted by using the transmission mode 1: the resource with the frequency domain index of 0, 1 (used for the first transmission) ), resources with a frequency domain index of 6, 7 (used for the second transmission), resources with a frequency domain index of 12, 13 (used for the third transmission), and so on.
  • the first terminal determines, according to the transmission mode 1 and the second third resource (frequency domain index 10), the target resource when the signal 1 is transmitted by using the transmission mode 1: the resource with the frequency domain index of 10 and 11 (at the time of the first transmission) Use), resources with a frequency domain index of 16, 17 (used for the second transmission), resources with a frequency domain index of 22, 23 (used for the third transmission), and so on.
  • the first terminal determines, according to the transmission mode 2 and the third third resource (frequency domain index 20), the target resource when the signal 3 is transmitted by using the transmission mode 2: the resource with the frequency domain index of 20 or 21 (used for each transmission) ).
  • the number of times the signal is transmitted may be configured by the network device or specified by the protocol.
  • the first mode, the transmission mode indicated in the first message includes the scenario of any one or more of the foregoing third modes.
  • the transmission mode indicated in the first message includes any one or more transmission modes of the foregoing first aspect, and the frequency domain width of the resource pool configured by the network device to the terminal is the maximum frequency domain in the foregoing first aspect. Width of the scene.
  • the transmission mode indicated in the first message includes any one or more transmission modes of the foregoing second aspect, and the frequency domain width of the resource pool configured by the network device to the terminal is the second terminal in the foregoing second aspect.
  • the supported maximum frequency domain width scene includes any one or more transmission modes of the foregoing second aspect, and the frequency domain width of the resource pool configured by the network device to the terminal is the second terminal in the foregoing second aspect.
  • the network device sends the third indication information, the fourth indication information, and the sixth indication information to the first terminal by using the second message.
  • the fifth indication manner is different from the first indication manner in that the sixth indication information is added.
  • the third indication information is used to indicate the resource pool, and the fourth indication information is used to indicate the third resource.
  • the sixth indication information is used to indicate a starting frequency domain position or an ending frequency domain position of a resource usable when transmitting the signal, or a narrow band usable for indicating a signal to be transmitted.
  • the third indication information may indicate the resource pool by using the frequency domain index and the time domain index, and the fourth indication information may also indicate the third resource by using the frequency domain index and the time domain index.
  • the sixth indication information may indicate a narrow band usable when the signal is transmitted through a narrowband index.
  • Initial frequency domain position or end frequency domain bit The narrowband, the resource pool, and the third resource are used by the first terminal to determine a target resource for transmitting the signal.
  • the frequency domain range of the resource that can be used when transmitting the signal starts from the initial frequency domain position or ends at the end of the frequency domain position
  • the frequency domain width of the usable resource is the maximum frequency domain width indicated in the transmission mode (when transmission The mode is any one of the above first aspects or any one of the second aspects).
  • the frequency domain of the resources that can be used when transmitting the signal is the frequency domain range in which the narrowband can be used.
  • the bypass bandwidth or resource pool can be divided into a plurality of narrow bands of the same frequency domain width in the frequency domain, and each narrow band can be identified by a narrowband index.
  • the frequency domain width of each narrowband is the maximum frequency domain width indicated in the transmission mode.
  • the frequency domain width of the bypass bandwidth shown in Figure 3 is the frequency domain width of 18 PRBs, that is, the bypass bandwidth is 3.24 Mhz.
  • the frequency domain width of each narrowband is the transmission mode.
  • the frequency domain width of the narrowband is 6 PRB frequency domain width
  • the narrowband index has 3: 0, 1 ,2.
  • the frequency domain location of the narrowband 0 is the frequency domain location of the PRB of the index 0-5
  • the frequency domain location of the narrowband 1 is the frequency domain location of the PRB of the index 6-11
  • the frequency domain location of the narrowband 3 is the index 12-17.
  • the transmission mode is the first aspect of using a resource transmission signal within a frequency domain of 1 PRB
  • 18 narrowbands with a frequency domain width of 1 PRB may be included in the same bypass bandwidth, and a narrowband index is used.
  • the frequency domain position of the narrowband 0 is the frequency domain location where the PRB of the index 0 is located
  • the frequency domain location of the narrowband 1 is the frequency domain location where the PRB of the index 1 is located, and so on.
  • the terminal may determine the narrowband that can be used according to the transmission mode and the narrowband index. For example, when the transmission mode is a method of transmitting a signal using a resource within a frequency domain of 6 PRB, and the narrowband index is 0, the terminal may determine that the frequency domain width of the narrowband that can be used is the frequency domain width of the PRB of the index 0-5.
  • the third indication information, the fourth indication information, and the sixth indication information may be included in the same second message, or may be included in the plurality of second messages, respectively.
  • the third indication information may be implemented as a SL-TF-ResourceConfig field or an IE
  • the fourth indication information may be implemented as a SL-TF-IndexPair field or an IE
  • the sixth indication information may be implemented as a lowest-PRB -index field, as follows:
  • the lowest-PRB-index field is a starting PRB index corresponding to the third resource indicated by the discTF-IndexPair field.
  • the lowest-PRB-index field may be replaced with a narrowband-index field for indicating a narrowband index.
  • the first terminal After receiving the second message, the first terminal, according to the resource pool, the third resource, the starting frequency domain location or the ending frequency domain location or the narrowband, and the transmission manner indicated in the first message, in the second message, Make sure to use the first message
  • the target resource used when transmitting in the transmission mode belongs to the resource pool.
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal starts from the initial frequency domain location or ends at the end of the frequency domain location, and the frequency domain width of the used target resource is the maximum frequency domain indicated in the transmission mode. Width (when the transmission mode is any one of the above first aspects or any one of the second aspects).
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal is the frequency domain range in which the indicated narrowband is located.
  • the first terminal determines a frequency domain width of each narrowband when the narrowband is divided according to a maximum frequency domain width indicated in the transmission mode.
  • the two messages are sequentially indicated in the first message and the corresponding data amount. It is assumed that the first terminal transmits two signals using the transmission mode 1: signal 1 and signal 2, and the transmission mode 2 is used. There are 1 signals transmitted and 3 signals. See Table 4 below:
  • the frequency domain index of the resource pool is 0-35, and the three third resources are indicated in sequence (the frequency domain index is 4, 12, 22 respectively), and 3 are used.
  • the starting frequency domain position (the frequency domain index is 0, 10, 20 respectively).
  • the first terminal may separately determine target resources when transmitting three signals, as follows:
  • the first terminal can determine, according to the transmission mode 1 and the first starting frequency domain location, that the frequency domain index of the resources that can be used when transmitting the signal 1 by the transmission mode 1 is 0-5.
  • the target resource used when transmitting the signal 1 can be determined: the resource with the frequency domain index of 4, 5 (used in the first transmission), and the frequency domain index is 0.
  • 1 resource used for the second transmission
  • resources with a frequency domain index of 2, 3 used for the third transmission
  • the first terminal may determine, according to the transmission mode 1 and the second initial frequency domain location, that the frequency domain index of the resources that can be used when transmitting the signal 2 by the transmission mode 1 is 10-15.
  • the second third resource the frequency domain index is 12
  • the target resource used when transmitting the signal 2 can be determined: the resource with the frequency domain index of 12, 13 (used in the first transmission), and the frequency domain index is 14 , 15 resources (used for the second transmission), resources with a frequency domain index of 10, 11 (used for the third transmission), and so on.
  • the first terminal can determine, according to the transmission mode 2 and the third initial frequency domain location, that the frequency domain index of the resources that can be used when transmitting the signal 3 by the transmission mode 2 is 20-27.
  • the target resource used when transmitting the signal 3 can be determined: the resource with the frequency domain index of 22, 23 (used in the first transmission), and the frequency domain index is 24 , 25 resources (used for the second transmission), resources with a frequency domain index of 26, 27 (used for the third transmission), resources with a frequency domain index of 20, 21 (used for the fourth transmission), This type of push.
  • the number of times the signal is transmitted may be configured by the network device or specified by the protocol.
  • the network device sends the third indication information and the sixth indication information to the first terminal by using the second message.
  • the third indication information is used to indicate a resource pool
  • the sixth indication information is used to indicate a starting frequency domain location or an ending frequency domain location of a resource that can be used when transmitting the signal, or a narrowband that can be used when indicating a signal is transmitted.
  • the third indication information may indicate the resource pool by using a frequency domain index and a time domain index.
  • the sixth indication information may indicate a narrow band usable when the signal is transmitted through a narrowband index.
  • the initial frequency domain location or the end frequency domain location or narrowband, and the resource pool is used by the first terminal to determine the target resource for the transmission signal.
  • the third indication information and the sixth indication information may be included in the same second message, or may be included in the plurality of second messages, respectively.
  • the determined third resource can determine a target resource used when transmitting the signal using the transmission method in the first message.
  • the target resource belongs to the resource pool.
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal starts from the initial frequency domain location or ends at the end of the frequency domain location, and the frequency domain width of the used target resource is the maximum frequency domain indicated in the transmission mode. Width (when the transmission mode is any one of the above first aspects or any one of the second aspects).
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal is the frequency domain range in which the indicated narrowband is located.
  • the first terminal determines a frequency domain width of each narrowband when the narrowband is divided according to a maximum frequency domain width indicated in the transmission mode.
  • the first terminal here autonomously determines three third resources.
  • the target resource determined by the first terminal refer to the example in the fifth indication mode, and details are not described herein.
  • the network device sends the third indication information, the fifth indication information, and the sixth indication information to the first terminal by using the second message.
  • the seventh indication manner and the third indication manner are different in that the sixth indication information is added.
  • the third indication information is used to indicate the resource pool
  • the fifth indication information is used to indicate the transmission mode
  • the sixth indication information is used to indicate the initial frequency domain location or the end frequency domain location of the resource that can be used when transmitting the signal, or used to indicate A narrow band that can be used when transmitting signals.
  • the third indication information may indicate the resource pool by using a frequency domain index and a time domain index.
  • the sixth indication information may indicate a narrow band usable when the signal is transmitted through a narrowband index.
  • the starting frequency domain location or ending frequency domain location or narrowband, resource pool and transmission mode are used by the first terminal to determine the target resource for the transmission signal.
  • the third indication information, the fifth indication information, and the sixth indication information may be included in the same second message, or may be included in the plurality of second messages, respectively.
  • the fourth indication information may be implemented as a SL-TF-IndexPair field or an IE
  • the fifth indication information may be implemented as a field transmissionType
  • the sixth indication information may be implemented as a lower-PRB-index field, specifically Refer to the related description in the third indication manner and the fifth indication manner described above.
  • the first terminal After receiving the second message, the first terminal, according to the resource pool, the transmission mode, and the The start frequency domain location or the end frequency domain location or narrowband, and the third resource autonomously determined by the first terminal may determine a target resource used when transmitting the signal using the transmission mode in the second message.
  • the target resource belongs to the resource pool.
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal starts from the initial frequency domain location or ends at the end of the frequency domain location, and the frequency domain width of the used target resource is the maximum frequency domain indicated in the transmission mode. Width (when the transmission mode is any one of the above first aspects or any one of the second aspects).
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal is the frequency domain range in which the indicated narrowband is located.
  • the first terminal determines a frequency domain width of each narrowband according to a maximum frequency domain width indicated in the transmission mode.
  • the first terminal determines a frequency domain range in which the indicated narrowband is located according to the frequency domain width of each narrowband and the indicated narrowband index.
  • the transmission mode is indicated in the second message, and the first terminal autonomously determines three third resources.
  • the target resource determined by the first terminal refer to the example in the fifth indication mode, and details are not described herein.
  • the eighth transmission mode the network device sends the third indication information, the fourth indication information, the fifth indication information, and the sixth indication information to the first terminal by using the second message.
  • the eighth transmission method differs from the fourth transmission method in that the sixth indication information is added.
  • the third indication information is used to indicate the resource pool
  • the fourth indication information is used to indicate the third resource
  • the fifth indication information is used to indicate the transmission mode
  • the sixth indication information is used to indicate the initial frequency domain of the resource that can be used when transmitting the signal. Position or end frequency domain location, or a narrow band that can be used to indicate when transmitting a signal.
  • the third indication information may indicate the resource pool by using the frequency domain index and the time domain index
  • the fourth indication information may also indicate the third resource by using the frequency domain index and the time domain index.
  • the sixth indication information may indicate a narrow band usable when the signal is transmitted through a narrowband index.
  • the starting frequency domain location or ending frequency domain location or narrowband, resource pool, third resource, and transmission mode are used by the first terminal to determine a target resource for transmitting signals.
  • the third indication information, the fourth indication information, the fifth indication information, and the sixth indication information may be included in the same second message, or may be included in the plurality of second messages, respectively.
  • the third indication information may be implemented as a SL-TF-ResourceConfig field or an IE
  • the fourth indication information may be implemented as a SL-TF-IndexPair field or an IE
  • the fifth indication information may be implemented as a field transmissionType.
  • the sixth indication information may be implemented as a lowest-PRB-index field. For details, refer to the related description in the fourth indication manner and the fifth indication manner.
  • the first terminal may determine to use the second message according to the resource pool, the transmission mode, the third resource, the starting frequency domain location, or the ending frequency domain location or the narrowband indicated in the second message.
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal starts from the initial frequency domain location or ends at the end of the frequency domain location, and the frequency domain width of the used target resource is the maximum frequency domain indicated in the transmission mode. Width (when the transmission mode is any one of the above first aspects or any one of the second aspects).
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal is the frequency domain range in which the indicated narrowband is located.
  • the first terminal determines a frequency domain width of each narrowband when the narrowband is divided according to a maximum frequency domain width indicated in the transmission mode.
  • the first terminal determines a frequency domain range in which the indicated narrowband is located according to the frequency domain width of each narrowband and the indicated narrowband index.
  • a specific example is similar to the example in the fifth indication above, the difference is here.
  • the transmission method is indicated in the second message.
  • the network device sends the fourth indication information, the fifth indication information, and the sixth indication information to the first terminal by using the second message.
  • the fourth indication information is used to indicate the third resource
  • the fifth indication information is used to indicate the transmission mode
  • the sixth indication information is used to indicate the initial frequency domain location or the ending frequency domain location of the resource that can be used when transmitting the signal, or used for Indicates the narrow band that can be used when transmitting signals.
  • the fourth indication information may indicate the third resource by using a frequency domain index and a time domain index.
  • the sixth indication information may indicate a narrow band usable when the signal is transmitted through a narrowband index.
  • the starting frequency domain location or ending frequency domain location or narrowband, third resource and transmission mode are used by the first terminal to determine the target resource of the transmission signal.
  • the fourth indication information may be implemented as a SL-TF-IndexPair field or an IE.
  • a SL-TF-IndexPair field or an IE.
  • the second message may include a SL-TF-ResourceConfig field or an IE
  • the fifth indication information may be implemented as a field transmissionType therein
  • the sixth indication information may be implemented as a field narrowband-Index therein, for Indicates a narrowband index.
  • the optional field narrowband-Index can be replaced with lower-PRB-index to indicate the starting PRB index. details as follows:
  • the time domain location of the resource that can be used by the first terminal transmission signal is jointly indicated by the SL-OffsetIndicator field and the SubframeBitmapSL field.
  • the first terminal After receiving the second message, the first terminal, according to the third resource indicated in the second message, the transmission mode, the starting frequency domain location or the ending frequency domain location of the available resource, or when indicating the transmission signal A narrow band that can be used to determine the target resource to use when transmitting signals using the transmission method in the second message.
  • the target resource belongs to the resource pool.
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal starts from the initial frequency domain location or ends at the end of the frequency domain location, and the frequency domain width of the used target resource is the maximum frequency domain indicated in the transmission mode. Width (when the transmission mode is any one of the above first aspects or any one of the second aspects).
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal is the frequency domain range in which the indicated narrowband is located.
  • the first terminal determines a frequency domain width of each narrowband when the narrowband is divided according to a maximum frequency domain width indicated in the transmission mode.
  • the first terminal determines a frequency domain range in which the indicated narrowband is located according to the frequency domain width of each narrowband and the indicated narrowband index.
  • a transmission mode is indicated, that is, a method of transmitting a signal using a resource within a frequency domain width of 6 PRB.
  • the initial frequency domain location is also indicated in the second message, and the frequency domain index is 0.
  • a third resource is also indicated in the second message, and the frequency domain index is 2.
  • the first terminal may send a message according to the transmission mode (using resources within the frequency domain width of the 6PRB)
  • the mode of the number) and the starting frequency domain location determine the frequency domain location of the configured resource pool, that is, the frequency domain index of the resource pool is 0-5.
  • the first terminal may determine, according to the determined resource pool, the transmission mode, and the third resource, the target resource: a resource with a frequency domain index of 2 and 3 (used in the first transmission), and a resource with a frequency domain index of 4 and 5. (Used for the second transmission), resources with a frequency domain index of 0, 1 (used for the third transmission), and so on.
  • the tenth indication manner the network device sends the fifth indication information and the sixth indication information to the first terminal by using the second message.
  • the fifth indication information is used to indicate a transmission mode
  • the sixth indication information is used to indicate a starting frequency domain position or an ending frequency domain position of a resource that can be used when transmitting the signal, or a narrow band that can be used when indicating a signal to be transmitted.
  • the sixth indication information may indicate a narrow band usable when the signal is transmitted through a narrowband index.
  • the initial frequency domain location or the end frequency domain location or narrowband, and the transmission mode is used by the first terminal to determine the target resource for the transmission signal.
  • the second message may include a SL-TF-ResourceConfig field or an IE
  • the fifth indication information may be implemented as a field transmissionType therein
  • the sixth indication information may be implemented as a field narrowband-Index therein, for Indicates a narrowband index.
  • the optional field narrowband-Index can be replaced with lower-PRB-index to indicate the starting PRB index.
  • the first terminal may use a narrowband that may be used according to the transmission mode indicated in the second message, the starting frequency domain location or the ending frequency domain location of the available resource, or the indication used to transmit the signal.
  • the third resource autonomously determined by the first terminal may determine a target resource used when transmitting the signal by using the transmission mode in the second message.
  • the target resource belongs to the resource pool.
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal starts from the initial frequency domain location or ends at the end of the frequency domain location, and the frequency domain width of the used target resource is the maximum frequency domain indicated in the transmission mode. Width (when the transmission mode is any one of the above first aspects or any one of the second aspects).
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal is the frequency domain range in which the indicated narrowband is located.
  • the first terminal determines a frequency domain width of each narrowband when the narrowband is divided according to a maximum frequency domain width indicated in the transmission mode.
  • the first terminal determines a frequency domain range in which the indicated narrowband is located according to the frequency domain width of each narrowband and the indicated narrowband index.
  • the first terminal autonomously determines three third resources.
  • the target resource determined by the first terminal refer to the example in the ninth indication mode, and details are not described herein.
  • the network device sends the fourth indication information and the sixth indication information to the first terminal by using the second message.
  • the fourth indication information is used to indicate a third resource
  • the sixth indication information is used to indicate a starting frequency domain location or an ending frequency domain location of a resource that can be used when transmitting the signal, or a narrowband that can be used when indicating a signal is transmitted.
  • the sixth indication information may indicate a narrow band usable when the signal is transmitted through a narrowband index. From The start frequency domain location or the end frequency domain location or narrowband, and the third resource is used by the first terminal to determine the target resource of the transmission signal.
  • the fourth indication information may be implemented as a SL-TF-IndexPair field or an IE
  • the sixth indication information may be implemented as a field narrowband-Index therein, which may be referred to the related description, and details are not described herein.
  • the first terminal may use the third resource indicated in the second message, the starting frequency domain location or the ending frequency domain location of the available resource, or may be used to indicate when the signal is transmitted.
  • the narrowband, and the transmission mode indicated in the first message can determine the target resource used when transmitting the signal using the transmission method in the first message.
  • the target resource belongs to the resource pool.
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal starts from the initial frequency domain location or ends at the end of the frequency domain location, and the frequency domain width of the used target resource is the maximum frequency domain indicated in the transmission mode. Width (when the transmission mode is any one of the above first aspects or any one of the second aspects).
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal is the frequency domain range in which the indicated narrowband is located.
  • the first terminal determines a frequency domain width of each narrowband when the narrowband is divided according to a maximum frequency domain width indicated in the transmission mode.
  • the first terminal determines a frequency domain range in which the indicated narrowband is located according to the frequency domain width of each narrowband and the indicated narrowband index.
  • the first terminal determines the target resource by using the transmission method in the first message.
  • the target resource determined by the first terminal refer to the example in the ninth indication mode, and details are not described herein.
  • the network device sends the sixth indication information to the first terminal by using the second message.
  • the sixth indication information is used to indicate a starting frequency domain position or an ending frequency domain position of a resource usable when transmitting the signal, or a narrow band usable for indicating a signal to be transmitted.
  • the sixth indication information may indicate a narrow band usable when the signal is transmitted through a narrowband index.
  • the initial frequency domain location or the end frequency domain location or narrowband is used by the first terminal to determine the target resource for the transmission signal.
  • the sixth indication information may be implemented as a field narrowband-Index, which is used to indicate a narrowband index.
  • the related description is omitted.
  • the first terminal After receiving the second message, the first terminal according to the starting frequency domain location or the ending frequency domain location of the available resource indicated in the second message, or a narrowband that can be used when indicating the transmission of the signal, and the first The transmission mode indicated in a message and the third resource autonomously determined by the first terminal may determine a target resource used when transmitting the signal by using the transmission mode in the second message.
  • the target resource belongs to the resource pool.
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal starts from the initial frequency domain location or ends at the end of the frequency domain location, and the frequency domain width of the used target resource is the maximum frequency domain indicated in the transmission mode. Width (when the transmission mode is any one of the above first aspects or any one of the second aspects).
  • the frequency domain range of the target resource used by the first terminal to determine the transmission signal is the frequency domain range in which the indicated narrowband is located.
  • the first terminal determines a frequency domain width of each narrowband when the narrowband is divided according to a maximum frequency domain width indicated in the transmission mode.
  • the first terminal determines a frequency domain range in which the indicated narrowband is located according to the frequency domain width of each narrowband and the indicated narrowband index.
  • the first terminal autonomously determines three third resources, and the first terminal determines the target resource by using the transmission manner in the first message.
  • the target resource determined by the first terminal reference may be made to the example in the ninth indication manner, and details are not described herein.
  • the network device sends the fourth indication information and the sixth indication information to the first terminal by using the second message.
  • the fourth indication information may indicate the frequency domain location of the third resource by using a relative position in the narrowband indicated by the third resource in the sixth indication information.
  • the field disc SF-Index indicates the time domain location of the third resource
  • the field discPRB-IndexInPool indicates the relative frequency domain location of the third resource in the resource pool configured for the first terminal.
  • the frequency domain position of the narrowband indicated by the sixth indication information is the frequency domain location where the PRB of the index 6-11 is located, as shown in FIG. 5.
  • the frequency domain location of the indicated third resource is the location of the first PRB in the narrowband, that is, the frequency domain location of the PRB of the index 6; when the discPRB-IndexInPool is 1
  • the frequency domain location of the indicated third resource is the location of the third PRB in the narrowband, that is, the frequency domain location of the PRB of the index 8; when the discPRB-IndexInPool value is 2, the frequency of the indicated third resource
  • the domain location is the location of the fifth PRB in the resource pool, that is, the frequency domain location where the PRB of index 10 is located.
  • the present application proposes a signal transmission method.
  • the signal transmission method of the present application may include the following steps:
  • the first terminal sends a first message to the network device, where the first message is used to indicate a transmission mode of the signal transmitted by the first terminal.
  • the network device receives the first message sent by the first terminal, and sends a second message to the first terminal.
  • the second message is used to instruct the first terminal to transmit the resource of the signal.
  • the first terminal receives the second message sent by the network device, and transmits the signal on the resource according to the second message.
  • the functions of the first message, the second message, the indication mode, and the signaling implementation may refer to the foregoing related content, and details are not described herein.
  • FIG. 7 is a schematic structural diagram of a hardware of a first terminal provided by the present application.
  • the first terminal 700 can include a baseband chip 110, a memory 115 (one or more computer readable storage media), a radio frequency (RF) module 116, and a peripheral system 117. These components can communicate over one or more communication buses 114.
  • a baseband chip 110 one or more computer readable storage media
  • RF radio frequency
  • the peripheral system 117 is mainly used to implement the interaction function between the first terminal 700 and the user/external environment, and mainly includes the input and output devices of the first terminal 700.
  • the peripheral system 117 can include a touch screen controller 118, a camera controller 119, an audio controller 120, and a sensor management module 121. Each controller may be coupled to a respective peripheral device (such as touch screen 123, camera 124, audio circuit 125, and sensor 126). It should be noted that the peripheral system 117 may also include other I/O peripherals.
  • the baseband chip 110 can be integrated to include one or more processors 111, a clock module 112, and a power management module 113.
  • the clock module 112 integrated in the baseband chip 110 is primarily used to generate the clocks required for data transfer and timing control for the processor 111.
  • the power management module 113 integrated in the baseband chip 110 is mainly used to provide a stable, high-precision voltage for the processor 111, the radio frequency module 116, and the peripheral system.
  • a radio frequency (RF) module 116 is used to receive and transmit radio frequency signals, primarily integrating the receiver and transmitter of the first terminal 700.
  • a radio frequency (RF) module 116 communicates with network devices and other communication devices via radio frequency signals.
  • the radio frequency (RF) module 116 may include, but is not limited to: an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC chip, a SIM card, WIFI modules and storage media.
  • a radio frequency (RF) module 116 can be implemented on a separate chip. In the present application, the radio frequency module 116 can be used to interact with a network device for information.
  • Memory 115 is coupled to processor 111 for storing various software programs and/or sets of instructions.
  • memory 115 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state storage devices.
  • the memory 115 can store an operating system (hereinafter referred to as a system) such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • the memory 115 can also store a network communication program that can be used to communicate with one or more additional devices, one or more first terminal devices, one or more network devices.
  • the memory 115 can also store a user interface program, which can realistically display the content of the application through a graphical operation interface, and receive user control operations on the application through input controls such as menus, dialog boxes, and keys. .
  • the first terminal 700 may be the first terminal in the communication system shown in FIG. 1, and may be implemented as a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, and a wireless local loop (Wireless Local). Loop, WLL) station, Personal Digital Assistant (PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and mobile in future 5G networks
  • PLMN public land mobile network
  • first terminal 700 is only one example provided by the present application, and that the first terminal 700 may have more or less components than the illustrated components, may combine two or more components, or may have Different configurations of components are implemented.
  • FIG. 8 is a structural block diagram of an implementation manner of a network device 800 provided by the present application.
  • the network device can include a communication interface 811, one or more processors 812, a transmitter 813, a receiver 814, a coupler 815, an antenna 816, and a memory 817. These components can be connected by bus or other means, and FIG. 8 is exemplified by a bus connection. among them:
  • Communication interface 811 can be used by network device 800 to communicate with other communication devices, such as first terminals, other network devices, and the like.
  • the communication interface 811 may be a network communication interface, such as an LTE (4G) communication interface, a 5G or a future communication interface of a new air interface.
  • LTE (4G) communication interface such as an LTE (4G) communication interface, a 5G or a future communication interface of a new air interface.
  • network device 800 can also be configured with a wired communication interface to support wired communication.
  • the antenna 816 can be used to convert electromagnetic energy in the transmission line into electromagnetic waves in free space, or to convert electromagnetic waves in free space into electromagnetic energy in the transmission line.
  • the coupler 815 can be used to divide the pass signal into multiple paths and assign it to multiple Receiver 814.
  • the transmitter 813 can be configured to transmit a signal output by the processor 812 for transmitting signals to the first terminal or other network device.
  • the receiver 814 can be configured to receive a signal received by the antenna 816 for receiving a signal transmitted by the first terminal or other network device.
  • the number of transmitters 813 and 814 may each be one or more.
  • the transmitter 813 is configured to send a second message or the like to the first terminal.
  • Memory 817 is coupled to processor 812 for storing various software programs and/or sets of instructions.
  • memory 812 can include high speed random access memory, and can also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state storage devices.
  • the memory 812 can store an operating system (hereinafter referred to as a system) such as an embedded operating system such as uCOS, VxWorks, or RTLinux.
  • the memory 812 can also store a network communication program that can be used to communicate with one or more additional devices, one or more first terminal devices, one or more network devices.
  • the memory 812 can be used to store an implementation of the method of transmitting signals provided by one or more embodiments of the present application on the network device 800 side.
  • the implementation of the method of transmitting signals provided by one or more embodiments of the present application please refer to the foregoing embodiments.
  • the processor 812 may include: an Administration Module/Communication Module (AM/CM) (a center for voice exchange and information exchange), a basic module (BasicModule, BM) (for completing call processing, signaling). Processing, radio resource management, radio link management and circuit maintenance functions), code transform and sub-multiplexer (TCSM) (for multiplexing demultiplexing and code conversion functions).
  • AM/CM Administration Module/Communication Module
  • BaseModule BasicModule
  • TCSM code transform and sub-multiplexer
  • processor 812 can be used to read and execute computer readable instructions. Specifically, the processor 812 can be used to invoke a program stored in the memory 817. For example, the method for transmitting a signal provided by one or more embodiments of the present application implements a program on the network device 800 side, and executes instructions included in the program.
  • the network device 800 may be a network device in the communication system shown in FIG. 1, and may be implemented as a base transceiver station, a wireless transceiver, a basic service set (BSS), an extended service set (ESS), a NodeB, an eNodeB. and many more.
  • Network device 800 can be implemented as several different types of base stations, such as macro base stations, micro base stations, and the like.
  • the network device 800 shown in FIG. 8 is only one implementation of the present application. In actual applications, the network device 800 may further include more or fewer components, which are not limited herein.
  • FIG. 9 is a schematic structural diagram of a first terminal 900 and a network device 910 provided by the present application.
  • the first terminal 900 and the network device 910 may be the communication system shown in FIG. 1 or the first terminal and the network device in the method embodiment shown in FIG. 6, respectively.
  • the first terminal 900 may include: a sending unit 901, a receiving unit 902, and a processing unit 903, where
  • the processing unit 903 is configured to configure a first message, where the first message is used to indicate a transmission mode of the first terminal to transmit a signal;
  • the sending unit 901 is configured to send the first message to a network device.
  • the receiving unit 902 is configured to receive a second message sent by the network device, where the second message is used to indicate Deriving a resource of the signal transmitted by the first terminal;
  • the sending unit 901 is further configured to transmit the signal on the resource.
  • the first message is further used to indicate the number of signals transmitted using the transmission mode.
  • the transmission mode of the signal is a manner in which the first terminal uses a resource when transmitting the signal.
  • the transmission mode of the signal can be classified into three aspects. For details, refer to the foregoing related description, and details are not described herein.
  • the network device 910 may include: a sending unit 911, a receiving unit 912, and a processing unit 913, where
  • the receiving unit 912 is configured to receive a first message sent by the first terminal, where the first message is used to indicate a transmission mode of the signal transmitted by the first terminal;
  • the processing unit 913 is configured to configure a second message, where the second message is used to indicate that the first terminal transmits the resource of the signal;
  • the sending unit 911 is configured to send the second message to the first terminal.
  • the first message is further used to indicate the number of signals transmitted using the transmission mode.
  • the transmission mode of the signal is a manner in which the first terminal uses a resource when transmitting the signal.
  • the transmission mode of the signal can be classified into three aspects. For details, refer to the foregoing related description, and details are not described herein.
  • the present application further provides a communication system, which may be the communication system shown in FIG. 1, and may include: a first terminal and a network device.
  • the first terminal may be the first terminal in the method embodiment of FIG. 6, and the network device may be the network device in the method embodiment of FIG. 6.
  • the first terminal may be the first terminal shown in FIG. 7 or FIG. 9, and the network device may be the network device shown in FIG. 8 or FIG.
  • the first terminal when the first terminal is configured to request the network device to transmit the information, the first terminal simultaneously notifies the network device of the signal transmission mode, so that the network device can configure the corresponding resource for the first terminal, and the first terminal can The target resource is determined in the configured resource, and the target resource is used to transmit the signal through the corresponding transmission mode.
  • the program can be stored in a computer readable storage medium, when the program is executed
  • the flow of the method embodiments as described above may be included.
  • the foregoing storage medium includes various media that can store program codes, such as a ROM or a random access memory RAM, a magnetic disk, or an optical disk.

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Abstract

本申请公开了一种信号传输方法及相关设备。所述方法可包括：第一终端向网络设备发送第一消息；第一消息用于指示第一终端传输信号的传输方式；接收网络设备发送的第二消息，第二消息用于指示第一终端传输所述信号的资源；在所述资源上传输所述信号。上述方案可使终端使用不同的传输方式及资源发送信号。

Description

信号传输方法及相关设备 技术领域
本申请涉及资源分配及信号传输领域，特别涉及信号传输方法及相关设备。
背景技术
目前，通信终端数量急剧增多，移动通信对数据传输速率的要求越来越高，通信系统的容量和可以使用的频谱资源已经成为阻碍移动通信技术发展的主要因素。
为了提高通信系统的无线频谱利用率，现有技术中提出了基于蜂窝网络的设备到设备(Device-to-Device，D2D)通信，又称为临近服务(Proximity Service，ProSe)。参见图1，图1示出了D2D通信网络架构示意图。如图所示，在D2D通信中，两个相距很近的用户第一终端利用网络设备给它们分配的无线资源，不再使用以前通过网络中转的蜂窝通信模式，直接进行D2D通信。D2D通信可以减少网络设备侧的负载，增加系统容量，提高蜂窝无线通信系统的无线资源利用率。
发明内容
本申请提供了一种信号传输方法及相关设备，通过第一终端在向网络设备请求用于发送信息的资源时，同时通知网络设备信号的传输方式，可使网络设备为第一终端配置相应的资源，第一终端可从配置的资源中确定目标资源，并通过对应的传输方式使用目标资源传输信号。
第一方面，本申请提供了一种信号传输方法，应用于第一终端侧，包括：第一终端向网络设备发送第一消息；所述第一消息用于指示所述第一终端传输信号的传输方式；接收所述网络设备发送的第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；在所述资源上传输所述信号。
第二方面，本申请提供了一种信号传输方法，应用于网络设备侧，包括：网络设备接收第一终端发送的第一消息；所述第一消息用于指示所述第一终端传输信号的传输方式；向所述第一终端发送第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源。
在本申请中，第一终端传输信号时的传输方式为使用资源的方式，可从以下三个方面进行分类。
1、根据最大频域宽度划分传输方式，最大频域宽度可根据接收第一终端发送的信号的第二终端接收旁路信号时所支持的最大频域宽度确定。
在可选实施例中，可分为以下三种传输方式：
第一种，使用全带宽内的资源传输信号的方式。
第二种，使用6PRB的频域宽度内的资源传输信号的方式。
第三种，使用1PRB的频域宽度内的资源传输信号的方式。
可理解的，具体实现中，第一方面可以包括更多的传输方式，例如使用2个PRB频域宽度内的资源传输信号的方式、使用4个PRB频域宽度内的资源传输信号的方式、使用Xkhz内的资源传输信号的方式等。
2、根据接收信号的第二终端划分传输方式。
在可选实施例中，可分为以下三种传输方式：
第一种，向带宽能力不受限的第二终端传输信号的方式。
第二种，向受限带宽为6个PRB的频域宽度的第二终端传输信号的方式。
第三种，向受限带宽为1个PRB的频域宽度的第二终端传输信号的传输方式。
在另一可选实施例中，可分为以下两种传输方式：
第一种，向窄带物联网(Narrow Band Internet of Things,NB-IoT)终端传输信号的方式。
第二种，向增强型机器类通信(Enhanced Machine Type Communication，eMTC)终端传输信号的方式。
3、可分为以下两种传输方式：
第一种，在不同频域资源上多次传输信号的方式；所述频域资源的频域宽度为接收所述信号的第二终端接收旁路信号时的最大频域宽度。
第二种，使用第一资源传输信号的方式；所述第一资源根据所述第一终端接收到的旁路信号所占用的第二资源确定。
在本申请中，第一消息用于第一终端向网络设备指示信号的传输方式。可选的，第一消息还可用于指示使用所述信号的传输方式传输的信号的数据量。在本申请中，第一消息的指示方式有以下两种：
第一种指示方式，第一消息包括第一指示信息和第二指示信息，其中，第一指示信息用于指示所述信号的传输方式；第二指示信息用于指示使用所述传输方式传输的信号的数据量。
第二种指示方式，第一消息包括第一指示信息，第一指示信息用于指示信号的数据量；所述第一指示信息与所述信号的传输方式之间的映射关系可由协议预先定义或由高层信令配置。
特别的，当第一消息中指示出的信号的传输方式为在第一资源上发送信号的方式时，第一消息在上述的任意一种指示方式的基础上，还包括用于指示第一资源或第二资源的指示信息。
在本申请中，第二消息用于向第一终端指示用于传输信号的资源，在不同的场景下有不同的指示方式。
第一种指示方式，网络设备通过第二消息向第一终端发送第三指示信息和第四指示信息。
第二种指示方式，网络设备通过第二消息向第一终端发送第三指示信息。
第三种指示方式，网络设备通过第二消息向第一终端发送第三指示信息和第五指示信息。
第四种指示方式，网络设备通过第二消息向第一终端发送第三指示信息、第四指示信息和第五指示信息。
第五种指示方式，网络设备通过第二消息向第一终端发送第三指示信息、第四指示信息、第六指示信息。
第六种指示方式，网络设备通过第二消息向第一终端发送第三指示信息和第六指示信息。
第七种指示方式，网络设备通过第二消息向第一终端发送第三指示信息、第五指示信息和第六指示信息。
第八种传输方式，网络设备通过第二消息向第一终端发送第三指示信息、第四指示信息、第五指示信息和第六指示信息。
第九种指示方式，网络设备通过第二消息向第一终端发送第四指示信息、第五指示信息和第六指示信息。
第十种指示方式，网络设备通过第二消息向第一终端发送第五指示信息和第六指示信息。
第十一种指示方式，网络设备通过第二消息向第一终端发送第四指示信息和第六指示信息。
第十二种指示方式，网络设备通过第二消息向第一终端发送第六指示信息。
在上述第一种至第十二种指示方式中，第三指示信息用于指示资源池，第四指示信息用于指示第三资源，第五指示信息用于指示传输方式，第六指示信息用于指示传输信号时可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带。
第三方面，本申请提供了一种第一终端，包括：发射器、接收器、处理器，其中，
所述处理器用于配置第一消息，所述第一消息用于指示所述第一终端传输信号的传输方式；所述发射器用于向网络设备发送所述第一消息；所述接收器用于接收所述网络设备发送的第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；所述发射器还用于在所述资源上传输所述信号。可理解的，第三方面的第一终端的包括的各个器件可用于执行上述第一方面的方法，具体可参考上述描述。
第四方面，本申请提供了另一种第一终端，包括：发送单元、接收单元、处理单元，其中，所述处理单元用于配置第一消息，所述第一消息用于指示所述第一终端传输信号的传输方式；所述发送单元用于向网络设备发送所述第一消息；所述接收单元用于接收所述网络设备发送的第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；所述发送单元还用于在所述资源上传输所述信号。
可理解的，第四方面的第一终端的包括的功能单元可用于执行上述第一方面的方法，具体可参考上述描述。
第五方面，本申请提供了一种网络设备，包括：发射器、接收器、处理器，其中，
所述接收器用于接收第一终端发送的第一消息；所述第一消息用于指示所述第一终端传输信号的传输方式；所述处理器用于配置第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；所述发射器用于向所述第一终端发送所述第二消息。可理解的，第五方面的网络设备的包括的各个器件可用于执行上述第二方面的方法，具体可参考上述描述。
第六方面，本申请提供了另一种网络设备，包括：发送单元、接收单元、处理单元，其中，所述接收单元用于接收第一终端发送的第一消息；所述第一消息用于指示所述第一 终端传输信号的传输方式；所述处理单元用于配置第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；所述发送单元用于向所述第一终端发送所述第二消息。
可理解的，第六方面的网络设备的包括的功能单元可用于执行上述第二方面的方法，具体可参考上述描述。
第七方面，本申请提供了一种本申请提供了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指令，当其在计算机上运行时，使得计算机执行上述第一方面和第一方面各个可能的实现方式中的任意一种方法。
第八方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面和第一方面各个可能的实现方式中的任意一种方法。
第九方面，本申请提供了一种本申请提供了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指令，当其在计算机上运行时，使得计算机执行上述第二方面和第二方面各个可能的实现方式中的任意一种方法。
第十方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面和第二方面各个可能的实现方式中的任意一种方法。
实施本申请，第一终端在向网络设备请求用于发送信息的资源时，同时通知网络设备信号的传输方式，可使网络设备为第一终端配置相应的资源，第一终端可从配置的资源中确定目标资源，并通过对应的传输方式使用目标资源传输信号。
附图说明
图1是D2D通信系统的网络结构示意图；
图2是D2D通信系统中时频域资源示意图；
图3是本申请提供的一种窄带划分示意图；
图4a-4b是本申请提供的两种第一消息的结构示意图；
图5是本申请提供的一种第三资源在窄带中的相对位置的示意图；
图6是本申请提供的一种信号传输方法的流程示意图；
图7是本申请提供的一种第一终端的硬件结构示意图；
图8是本申请提供的一种网络设备的硬件结构图；
图9是本申请提供的一种第一终端和网络设备的功能框图。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。
参见图2，图2示出了D2D通信系统中时频域资源示意图。
在时域，1个时隙(slot)的长度是0.5ms，一般配置下包括7个单频波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)符号。1个子帧由2个时隙组成，大小为1ms。1个无线帧包括10个子帧，1个无线帧的长度为10ms。子帧以 子帧索引标识。
在频域，D2D旁路(sidelink)带宽包括多个子载波，不同的旁路带宽对应的子载波的数目不同。带宽可以通过频域上包含的物理资源块(physical resource block，PRB)的个数来表示。
时域上对应0.5ms、频域上对应12个连续的子载波的单元称为物理资源块。每个物理资源块在时域上通过时域索引指示，在频域上通过频域索引指示。时域索引可以为子帧索引，频域索引可以为PRB索引。例如，图2中示出的物理资源块通过时域索引0和频域索引0共同指示。网络设备在为第一终端调度资源时，以一个子帧(1ms)内的两个PRB，即PRB对(PRB-pair)作为基本的物理资源单位进行调度。
需要说明的是，图2为长期演进(Long Term Evolution，LTE)技术的时频域资源示意图，在未来的新的无线接入技术(New Radio Access Technology，New RAT)中，例如未来即将面市的4.5G、5G等，子帧、PRB、PRB-pair等的定义及名称，以及子载波宽度、时隙的长度、传输的符号可能会发生变化，本申请同样适用于变化后的场景。
参见图1，图1所示通信系统中，网络设备为第一终端配置无线资源，第一终端使用配置的无线资源和第二终端进行信号传输。
下面说明在现有技术中，网络设备为第一终端分配无线资源以实现D2D通信的过程。D2D通信包括旁路通信(sidelink communication)、旁路发现(sidelink discovery)和车-车旁路通信(Vehicle-To-Vehicle sidelink communication)。
首先，在进行D2D通信之前，第一终端向网络设备发送请求信息，以使网络设备为其分配无线资源来发送旁路信号，如旁路发现、旁路通信、车-车旁路通信等过程中的相关信号等。在3GPP的release 12中定义，第一终端通过SidelinkUEInformation消息向网络设备请求无线资源，并设置SidelinkUEInformation中的字段discTxResourceReq的值来指示需要发送的消息的数量。
然后，网络设备接收到第一终端发送的请求，为第一终端配置无线资源。3GPP的release 12中定义，网络设备为第一终端配置无线资源时，指示一个资源池并且为第一终端指示出该资源池中的至少一个参考PRB-pair。
网络设备为第一终端指示资源池时，需要具体指示出资源块的数量(prb-Num)、起始资源块索引(prb-Start)、结束资源块索引(prb-End)以及资源池包含的时域资源。这里，网络设备为该第一终端配置的资源池中的物理资源块并不一定是该第一终端所专用的，该资源池中的物理资源块和网络设备配置给其他第一终端的资源池中的物理资源块有可能完全不同、或者部分相同、或者全部相同。
网络设备为第一终端指示参考PRB-pair时，需要具体指示出该参考PRB-pair的时域索引和频域索引。
最后，第一终端根据参考PRB-pair确定使用资源池中的哪些PRB-pair来发送信号，并使用确定出的PRB-pair发送信号。
参考3GPP中TS36.213标准可知，第一终端能够通过固定的一种算法确定PRB-pair。
显然地，在现有技术中，默认第一终端在发送信号时，都使用固定的一种方式确定出 需要使用的PRB-pair，即第一终端使用相同的传输方式发送信号。
但是，随着D2D通信的发展，第一终端可能会使用除上述的这一种传输方式以外的多种传输方式来发送信号。在这种情况下，第一终端发送信号时，不同的传输方式对应使用不同的PRB-pair。
举例来说，网络设备为第一终端配置的资源池中包括PRB-pair1、PRB-pair 2、PRB-pair3，并指示出参考PRB-pair为PRB-pair 1。如下表所示，第一终端通过传输方式1发送信号时，对应使用PRB-pair 1和PRB-pair 3，第一终端通过传输方式2发送信号时，对应使用PRB-pair 1和PRB-pair 2。
传输方式 使用资源块
传输方式1 PRB-pair 1、PRB-pair 3
传输方式2 PRB-pair 1、PRB-pair 2
表1
假设第一终端通过传输方式1，使用了PRB-pair1和PRB-pair3来发送信号。同时，网络设备侧不知道第一终端会使用哪一种传输方式，可能认为第一终端通过传输方式2，使用了PRB-pair1和PRB-pair2来发送该消息。在这种情况下，网络设备可能会将PRB-pair3配置给其他第一终端使用，并避免其他第一终端使用PRB-pair2，导致第一终端间在PRB-pair3上发生碰撞，而PRB-pair2被浪费。在第一终端可以通过不同的传输方式来发送信号时，为了避免出现上述问题，本申请提出了一种信号传输方法，第一终端在向网络设备请求无线资源时，上报将要使用哪些传输方式来传输信号。同时，网络设备在为第一终端配置无线资源时，可指示传输方式，以使得第一终端通过指示的传输方式确定发送信号时所使用的资源。
在本申请中，一个资源可以是现有技术中定义的PRB-pair，也可以是在时域上占用任意时长、频域上占用任意带宽的物理资源块，该任意时长、任意带宽可由网络设备配置或者由协议规定，本申请不做限制。
首先介绍第一终端在发送D2D信号时可能使用的几种传输方式。在本申请中，信号的传输方式为第一终端传输所述信号时使用资源的方式。
第一方面，根据最大频域宽度划分传输方式。这种情况下，可以划分为多种传输方式，即分别使用不同的频域宽度内的资源传输信号的方式。
这里，最大频域宽度可以根据接收第一终端发送的信号的第二终端接收旁路信号时所支持的最大频域宽度确定。
其中，最大频域宽度可通过赫兹(Hz)为单位计量。
具体的，各个终端支持的带宽能力不同，部分终端只能在受限的带宽内发送和接收信号。例如，在FeD2D(further enhancements to LTE Device to Device)课题中，有的终端支持在全部旁路带宽内发送和接收信号，有的终端仅支持在6PRB的频域宽度内发送和接收信号，有的终端仅支持在1PRB的频域宽度内发送和接收信号。接收信号的第二终端的带宽能力可能是上述的任意一种，下面以此为例详细说明以下几种传输方式。
第一种，使用全带宽(full bandwidth)内的资源传输信号的方式。这种传输方式适用于接收信号的第二终端的带宽能力不受限的场景。在配置的资源池的频域宽度超过旁路带宽的情况下，第一终端可使用资源池内的一个旁路带宽内的任意资源传输信号，在配置的资源池的频域宽度不超过旁路带宽的情况下，第一终端可使用资源池内的任意资源传输信号举例来说，使用第一种传输方式时，第一终端第一次可使用频域索引为0、1的PRB-pai r传输信号，第二次可使用频域索引为10、11的PRB-pai r传输信号，上述两次传输的信号可以是同一信号，也可以是不同的信号。
第二种，使用6PRB的频域宽度内的资源传输信号的方式。这种传输方式适用于接收信号的第二终端受限带宽为6个PRB的频域宽度的场景，当然也适用于第二终端的带宽能力不受限的场景。在配置的资源池的频域宽度超过6PRB频域宽度的情况下，第一终端可使用资源池内的6PRB频域宽度内的任意资源传输信号，在配置的资源池的频域宽度不超过6PRB频域宽度的情况下，第一终端可使用资源池内的任意资源传输信号。举例来说，使用第二种传输方式时，第一终端第一次可使用频域索引为0、1的PRB-pair传输信号，第二次可使用频域索引为2、3的PRB-pair传输信号，第三次第一终端可使用频域索引为4、5的PRB-pair传输信号，第四次可使用频域索引为0、1的PRB-pair传输信号，四次发送的信号可以是同一信号，也可以是不同的信号。显然地，在四次传输信号时，频域上间隔最大的两个PRB-pair(PRB-pair0和PRB-pair5)在频域上的跨度为6×每个PRB-pair在频域上占用的带宽，第一终端使用的所有资源在6PRB的频域宽度之内。
可选的，第二种传输方式为第一终端使用6个PRB的频域宽度内的资源多次传输同一信号的方式。这里，同一信号可以是完全相同的物理信号，也可以是用于传输同一个消息的不同的物理信号。
可选的，第二种传输方式为第一终端使用6PRB的频域宽度内的资源在一个周期内多次传输同一信号的方式。即，第二终端在每个周期内使用的不是相同的6个PRB的频域宽度内的资源多次传输同一信号，例如，在第一个周期中可使用0-5PRB频域宽度内的资源多次传输同一信号，在第二周期可使用6-11PRB频域宽度内的资源多次传输同一信号。
第三种，使用1PRB的频域宽度内的资源传输信号的方式。这种传输方式适用于接收信号的第二终端受限带宽为1个PRB的频域宽度的场景，当然也适用于第二终端的带宽能力不受限或者受限带宽为6个PRB的频域宽度的场景。在配置的资源池的频域宽度超过1PRB频域宽度的情况下，第一终端可使用资源池内的1PRB频域宽度内的任意资源传输信号，在配置的资源池的频域宽度不超过1PRB频域宽度的情况下，第一终端可使用资源池内的任意资源传输信号。举例来说，使用第三种传输方式时，第一终端可使用时域索引分别为0和1、频域索引为0的两个PRB-pair传输信号，或者仅通过时域索引为0、频域索引为0的1个PRB-pair传输信号。
可选的，第三种传输方式为第一终端使用1个PRB的频域宽度内的资源多次传输同一信号的方式。
可选的，第三种传输方式为第一终端使用1PRB的频域宽度内的资源在一个周期内多次传输同一信号的方式。
上述几种传输方式仅是示例性说明，具体实现中，可以有更多的传输方式，例如使用 2个PRB频域宽度内的资源传输信号的方式、使用4个PRB频域宽度内的资源传输信号的方式、使用Xkhz内的资源传输信号的方式等，其中，Xkhz小于等于旁路带宽。在本申请中，一个资源可以是在时域上占用任意时长、频域上占用任意带宽的物理资源块，本申请不做限制。
第二方面，根据接收信号的第二终端划分传输方式。
在可选实施例中，可分为以下三种传输方式：
第一种，向带宽能力不受限的第二终端传输信号的方式。在这种传输方式下，第一终端发送的信号能够被带宽能力不受限的第二终端接收。
第二种，向受限带宽为6个PRB的频域宽度的第二终端传输信号的方式。在这种传输方式下，第一终端发送的信号能被受限带宽为6个PRB的第二终端接收。
第三种，向受限带宽为1个PRB的频域宽度的第二终端传输信号的传输方式。在这种传输方式下，第一终端发送的信号能被受限带宽为1个PRB的频域宽度的第二终端接收。
上述几种传输方式仅是示例性说明，具体实现中，还可以有更多的传输方式，例如向受限带宽为2个PRB的频域宽度的第二终端传输信号的方式、向受限带宽为4个PRB的频域宽度的第二终端传输信号的方式等，本申请不做限制。
在另一可选实施例中，可分为以下两种传输方式：
第一种，向NB-IoT终端传输信号的方式。其中，NB-IoT终端仅支持在1个PRB内的频域宽度上发送和接收信号。
第二种，向eMTC终端传输信号的方式。其中，eMTC终端仅支持在6个PRB内的频域宽度上发送和接收信号。
第三方面，传输方式可分为以下两种。
第一种，在不同频域资源上多次传输信号的方式；所述频域资源的频域宽度为接收所述信号的第二终端接收旁路信号时的最大频域宽度。
可选的，第一种传输方式为在同一个周期内在不同频域资源上多次传输同一信号的方式。
参见图3左图，一个旁路带宽或资源池在频域上可划分为多个相同频域宽度的窄带，通过窄带索引标识每个窄带。其中，每个窄带的频域宽度根据接收信号的第二终端所支持的最大频域宽度确定。例如，当接收信号的第二终端的受限带宽为6个PRB时，1个总带宽为3.24Mhz的旁路，可划分为3个频域宽度为6PRB的窄带，该3个窄带可通过索引0-2标识。
在不同频域资源上多次传输信号的方式相当于在不同的窄带上多次传输同一信号。具体的，可以在同一个资源池的多个窄带上多次传输同一信号，也可以是在不同的资源池中的窄带上多次传输同一信号。
在同一个资源池的多个窄带上多次传输同一信号时，举例来说，配置给终端的一个资源池中的窄带划分如图3左图所示，第一终端第一次可在索引为0的窄带中的两个PRB-pair上发送信号，第二次可在索引为1的窄带中的两个PRB-pair上发送信号，第三次可在索引 为2的窄带中的两个PRB-pair上发送信号，以此类推。其中，第一终端发送信号的次数可以由网络设备配置。使用第一种传输方式，第二终端只需要在其中一个窄带上接收信号，提高效率。
在不同的资源池中的窄带上多次传输同一信号时，举例来说，配置给第一终端的资源池有两个：资源池1和资源池2，资源池1和资源池2中的窄带划分都可如图3左图所示。第一终端第一次可在资源池1中的索引为0的窄带中的两个PRB-pair上发送信号，第二次可在资源池2中的索引为1的窄带中的两个PRB-pair上发送信号。可选的，配置给终端的资源池的频域宽度可以和窄带的频域宽度相同。
第二种，使用第一资源传输信号的方式；所述第一资源根据所述第一终端接收到的旁路信号所占用的第二资源确定。
具体的，第一终端可根据接收到的一个或多个旁路信号所占用的第二资源来确定第一资源，该接收到的一个或多个旁路信号可能是第二终端或其他终端发送的。确定第一资源的方式可能有多种，本申请示例性地提出以下可能的实施方式。
在可能的实施方式中，第一终端直接将任意一次接收到的旁路信号所占用的第二资源的频域索引作为第一资源的频域索引。
在可能的实施方式中，第一终端确定任意一次接收到的旁路信号所占用的第二资源的频域索引，在该频域索引上加n得到第一资源的频域索引，n为正整数。例如，最近一次接收到的旁路信号所占用的第二资源为频域索引分别是为0和1的PRB-pair，在0和1上分别加2，得到第一资源的频域索引2和3，相当于第一资源为频域索引为2和3的两个PRB-pair。在确定第二资源的频域索引后，终端可任意确定第二资源的时域索引，以确定第二资源。
在可能的实施方式中，可将旁路带宽分为几个窄带，第一终端可确定接收到的任意一次的旁路信号所占用的第二资源所在的窄带，并在该窄带上任选一个或多个资源作为第一资源。
不限于上述根据接收到的旁路信号所占用的第二资源确定第一资源的方式，具体实现中，还可通过其他方式根据第二资源确定第一资源，本申请不做限定。
上述基于三个方面分别划分了信号的传输方式。在本申请中，第一终端在传输信号时，有可能使用上述的传输方式中的任意一种或者多种。在这种情况下，第一终端在向网络设备发送消息来请求传输信号的资源时，同时通过该消息通知网络设备第一终端所支持的信号传输方式，或者，第一终端希望使用的信号传输方式。这里可将第一终端向网络设备发送的消息称为第一消息。
第一消息可实现为RRC层信令，媒体接入控制控制元素(Medium Access Controlcontrol element,MAC CE)、旁路控制信息(Sidelink Control Information,SCI)。具体实现中，可通过在现有的消息中增加字段，或者利用预留字段的方式实现，也可通过增加新的消息类型来实现第一消息。
第一消息的作用是向网络设备请求用于第一终端发送信号的资源，并且，第一消息指 示信号的传输方式。可选的，第一消息还指示使用所述信号的传输方式传输的信号的数据量。这里，第一消息可通过以下两种可选的方式指示出上述两个信息，下面详细说明。
第一种指示方式，第一消息包括第一指示信息和第二指示信息，其中，第一指示信息用于指示所述信号的传输方式；第二指示信息用于指示使用所述传输方式传输的信号的数据量。这里，信号的数据量可以是信号的个数。
参见图4a，在一个第一消息中，可包括多个第一指示信息，以及和所述多个第一指示信息对应的多个第二指示信息。可定义一个字段或信息单元(information element，IE)包含一个第一指示信息和对应的第二指示信息。
在可选实施例中，每个IE或字段可实现为SL-DiscTxResourceReq字段，如下：
Figure PCTCN2017096616-appb-000001
其中，SL-DiscTxResourceReq字段中包括两个字段，transmissionType和discTxResourceReq。
transmissionType为第一指示信息，指示出信号的传输方式。这里指示出的传输方式可以是上述根据最大频域宽度划分的传输方式、或者根据增强方法划分的传输方式中的任意一种。当transmissionType指示出的传输方式是上述根据最大频域宽度划分的传输方式中的任意一种时，transmissionType可直接指示出最大频域宽度，例如直接指示6PRB、1PRB等。
可理解的，上面仅示例性地列出了transmissionType指示使用全旁路带宽内的资源传输信号的方式、使用6PRB内的资源传输信号的方式、使用1PRB内的资源传输信号的方式的情况，具体实现中，transmissionType字段还可指示出上述的其他传输方式，本申请不做限制。
discTxResourceReq为第二指示信息，指示出使用transmissionType所指示的传输方式传输的信号的数据量。这里，数据量可以用信号的个数衡量。
在上面的可选实施例中，每个SL-DiscTxResourceReqIE或字段通过transmissionType字段直接指示出了传输方式。在其他的可选实施例中，第一终端在发送的第一消息中指示旁路发现模式，通过旁路发现模式间接指示出传输方式，旁路发现模式和传输方式之间有一一对应的关系。
在D2D通信的发现(discovery)过程中，有两种发现模式：模式(model)A和模式B。在model A下，第一终端向第二终端发送用户设备到网络中继发现公告(UE-to-Network Relay Discovery Announcement)消息，在model B下，第一终端向第二终端发送用户设备到网络中继发现响应(UE-to-Network Relay Discovery Response)消息。可选的，第一终端发送UE-to-Network Relay Discovery Announcement消息时，使用的是上述第三方面中的在不同频域资源上多次传输信号的方式，第一终端发送UE-to-Network Relay  Discovery Response时，使用的是使用第一资源传输信号的方式。因此，如下表所示，model A对应于在不同频域资源上多次传输信号的方式，model B对应于使用第一资源传输信号的方式。
旁路发现模式 传输方式
Model A 在不同频域资源上多次传输信号的方式
Model B 使用第一资源传输信号的方式
表2
基于表2所示的对应关系，每个IE或字段还可通过旁路发现模式间接指示出传输方式。每个IE可实现成SL-DiscTxResourceReq字段，如下：
Figure PCTCN2017096616-appb-000002
其中，SL-DiscTxResourceReq字段包括两个字段，ModeIndication和discTxResourceReq。
ModeIndication为第一指示信息，直接指示传输信号使用的旁路发现模式，间接指示该旁路发现模式对应的传输方式。
discTxResourceReq为第二指示信息，指示出了ModeIndication字段所指示的传输方式对应的信号的数据量。
第二种指示方式，第一消息包括第一指示信息，第一指示信息用于指示信号的数据量；所述第一指示信息与所述信号的传输方式之间的映射关系可由协议预先定义或由高层信令配置。其中，网络设备和第一终端都预先获知所述第一指示信息与所述信号的传输方式之间的映射关系。
参见图4b，第一消息可包括多个第一指示信息，每个第一指示信息对应于一种传输方式。
在可选实施例中，第一消息可包括SL-DiscTxResourceReq字段，如下：
Figure PCTCN2017096616-appb-000003
其中，SL-DiscTxResourceReq字段包括的三个字段discTxResourceReqFullBW、discTxResourceReq6PRB和discTxResourceReq1PRB都为第一指示信息。discTxResourceReqFullBW对应于使用全旁路带宽内的资源传输信号的方式，指示出使用全旁路带宽内的资源传输信号的方式的信号的数据量。discTxResourceReq6PRB对应于使用6PRB内的资源传输信号的方式，指示出使用6PRB内的资源传输信号的方式的信号的数据量。discTxResourceReq1PRB对应于使用1PRB内的资源传输信号的方式，指示出使用1PRB 内的资源传输信号的方式的信号的数据量。应理解的，上述仅示例性地列出了三种第一指示信息，具体实现中，还可能包括更多的第一指示信息，例如，分别对应于在使用2PRB内、或4PRB内的资源传输信号的方式的第一指示信息等。
特别的，当第一消息中指示出的信号的传输方式为在第一资源上发送信号的方式时，第一消息在上述的任意一种指示方式的基础上，还包括用于指示第一资源或第二资源的指示信息。其中，第二资源是第一终端接收到的旁路信号所占用的资源。当第一消息中包括用于指示第一资源的指示信息时，网络设备可直接获知第一资源，当第一消息中包括用于指示第二资源的指示信息时，网络设备可根据第二资源确定第一资源。网络设备在获知第一资源的情况下，可为第一终端配置第一资源来传输信号。
不限于上述第一消息的两种指示方式，具体实现中，还可通过其他方式实现第一消息的指示功能，本申请不做限制。
通过上述第一消息的两种指示方式，第一终端可通知网络设备第一终端支持的信号的传输方式，或者第一终端希望使用的信号的传输方式，以及使用每种传输方式传输的信号的数据量，可以使得网络设备根据不同的传输方式和数据量为第一终端分配资源。
在本申请中，网络设备在接收到第一终端发送的第一消息后，向第一终端发送消息指示配置给第一终端的资源。这里可将网络设备向第一终端发送的消息称为第二消息。
第二消息可实现为RRC层信令，媒体接入控制控制元素(Medium Access Controlcontrol element，MAC CE)、旁路控制信息(Sidelink Control Information，SCI)。具体实现中，可通过在现有的消息中增加字段，或者利用预留字段的方式实现，也可通过增加新的消息类型来实现第二消息。
第二消息的作用是向第一终端指示用于传输信号的资源，这里，不同的场景下，网络设备通过第二消息向第一终端指示资源的方式不同。下面详细说明第二消息的多种指示方式。
第一种指示方式，网络设备通过第二消息向第一终端发送第三指示信息和第四指示信息。
第三指示信息用于指示资源池，第四指示信息用于指示第三资源。资源池和第三资源用于第一终端确定传输信号的目标资源。其中，第三指示信息可通过频域索引和时域索引指示资源池，第四指示信息也可通过频域索引和时域索引指示第三资源。
这里，第三指示信息和第四指示信息可包括在同一个第二消息中，也可分别包括在多个第二消息中。例如，网络设备第一次可向第一终端发送仅包括第三指示信息的第二消息，第二次向第一终端发送仅包括第四指示信息的第二消息，通过两次发送的第二消息向第一终端发送第三指示信息和第四指示信息。
在一个具体的实施例中，第三指示信息可实现为下面的SL-TF-ResourceConfig字段或IE：
Figure PCTCN2017096616-appb-000004
SL-TF-ResourceConfig字段或IE中包括网络设备为第一终端配置的资源池的频域位置信息和时域位置信息。其中，资源池的频域位置信息包括：PRB的数量(prb-Num)、PRB起始索引(prb-Start)、PRB结束索引(prb-End)。网络设备为第一终端配置的资源池在频域上包含的PRB为：索引大于或等于prb-start且小于prb-start+prb-num的PRB，以及索引大于prb-end–prb-num且小于或等于prb-end的PRB。其中，资源池的时域位置由SL-OffsetIndicator字段和SubframeBitmapSL字段共同指示。
在一个具体的实施例中，第四指示信息可实现为下面的SL-TF-IndexPair字段或IE：
Figure PCTCN2017096616-appb-000005
SL-TF-IndexPair字段或IE中包括第三资源的时域索引(discSF-Index)和频域索引(discPRB-Index)。
第一终端在接收到上述的第二消息后，根据第二消息中指示的资源池、第三资源以及第一消息中指示的传输方式，确定使用第一消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。可选的，第一终端根据第三资源和传输方式从资源池中确定多次传输信号所使用的目标资源。
以一个具体的例子说明，假设第一消息中顺序指示了两种传输方式：传输方式1(在不同频域资源上多次传输信号的方式)，传输方式2(使用第一资源传输信号的方式)。第一消息中还分别指示出了使用传输方式1和使用传输方式2传输的信号的数据量，如下表3所示：
Figure PCTCN2017096616-appb-000006
表3
假设第二消息中，指示出了一个资源池，资源池的频域索引为0-35，并且顺序指示出3个第三资源，频域索引分别是为0、10、20。
第一终端接收到第二消息后，可分别确定传输3个信号时的目标资源，具体如下：
根据传输方式1、第1个第三资源(频域索引0)，确定通过传输方式1传输对应的数据量中的第1个信号时，使用的目标资源：频域索引为0、1的资源(第一次传输时使用)，频域索引为6、7的资源(第二次传输时使用)，频域索引为12、13的资源(第三次传输时使用)，以此类推。
根据传输方式1、第2个第三资源(频域索引10)，确定通过传输方式1传输对应的数据量中的第2个信号时，使用的目标资源：频域索引为10、11的资源(第一次传输时使用)，频域索引为16、17的资源(第二次传输时使用)，频域索引为22、23的资源(第三次传输时使用)，以此类推。
根据传输方式2，第3个第三资源(频域索引20)，确定通过传输方式2传输对应的信号时，使用的目标资源：频域索引为20、21的资源(每一次传输时使用)。
其中，信号的传输次数可由网络设备配置或者由协议规定。
可理解的，上述仅为示例性举例，具体实现中，第一终端根据第二消息中指示的资源池、第三资源以及第一消息中指示的传输方式，确定使用第一消息中的传输方式发送对应的信号时所使用的目标资源时可以和上述举例中不同。
第二种指示方式，网络设备通过第二消息向第一终端发送第三指示信息。
第三指示信息用于指示资源池，用于第一终端确定传输信号的目标资源。其中，第三指示信息可通过频域索引和时域索引指示资源池。
在一个具体的实施例中，和第一种指示方式相同，第三指示信息可实现成SL-TF-ResourceConfig字段或IE，可参照前面的相关描述。
第一终端在接收到上述的第二消息后，根据第二消息中指示的资源池、第一消息中指示的传输方式，以及第一终端自主确定的第三资源，可确定使用第一消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。可选的，第一终端根据第三资源和传输方式从资源池中确定多次传输信号所使用的目标资源。
以一个具体的例子说明，和上述第一种指示方式中的例子类似，不同之处在于第一终端自主确定3个第三资源，频域索引分别是为0、10、20。第一终端确定的目标资源可参照第一指示方式中的例子，在此不赘述。
第三种指示方式，网络设备通过第二消息向第一终端发送第三指示信息和第五指示信息。
第三指示信息用于指示资源池，第五指示信息用于指示传输方式。其中，第三指示信息可通过频域索引和时域索引指示资源池。资源池和传输方式用于第一终端确定传输信号的目标资源。
这里，第三指示信息和第五指示信息可包括在同一个第二消息中，也可分别包括在多个第二消息中。
在一个具体的实施例中，第三指示信息可实现成SL-TF-ResourceConfig字段或IE， 可参照前面的相关描述。
在一个具体的实施例中，第五指示信息可实现为transmissionType字段，具体可参照第一消息的第一种指示方式中的相关描述。
第一终端在接收到上述的第二消息后，根据第二消息中指示的资源池、传输方式，以及第一终端自主确定的第三资源，确定使用第二消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。可选的，第一终端根据第三资源和传输方式从资源池中确定多次传输信号所使用的目标资源。
以一个具体的例子说明，假设第二消息中，指示出了一个资源池，资源池的频域索引为0-35。第二消息还指示出了两种传输方式：传输方式1(在不同频域资源上多次传输信号的方式)、传输方式2(使用第一资源传输信号的方式)。
第一终端使用传输方式1发送的信号有两个：信号1，信号2。第一终端使用传输方式2发送的信号有1个：信号3。第一终端自主确定和三个信号分别对应的第三资源：频域索引分别是为0、10、20。
根据传输方式1、和信号1对应的第三资源(频域索引0)，确定使用传输方式1发送信号1时的目标资源：频域索引为0、1的资源(第一次传输时使用)，频域索引为6、7的资源(第二次传输时使用)，频域索引为12、13的资源(第三次传输时使用)，以此类推。
根据传输方式1、和信号2对应的第三资源(频域索引10)，确定使用传输方式1发送信号2时的目标资源：频域索引为10、11的资源(第一次传输时使用)，频域索引为16、17的资源(第二次传输时使用)，频域索引为22、23的资源(第三次传输时使用)，以此类推。
根据传输方式2、和信号3对应的第三资源(频域索引20)，确定使用传输方式2发送信号3时的目标资源：频域索引为20、21的资源(每一次传输时使用)。
其中，信号的传输次数可由网络设备配置或者由协议规定。
可理解的，上述仅为示例性举例，具体实现中，第一终端确定目标资源时可以有更多的实现方法。
第四种指示方式，网络设备通过第二消息向第一终端发送第三指示信息、第四指示信息和第五指示信息。
第三指示信息用于指示资源池，第四指示信息用于指示第三资源，第五指示信息用于指示传输方式。其中，第三指示信息可通过频域索引和时域索引指示资源池，第四指示信息也可通过频域索引和时域索引指示第三资源。资源池、第三资源和传输方式用于第一终端确定传输信号的目标资源。
这里，第三指示信息、第四指示信息、第五指示信息可包括在同一个第二消息中，也可分别包括在多个第二消息中。
在一个具体的实施例中，第三指示信息可实现为SL-TF-ResourceConfig字段或IE，第四指示信息可实现为SL-TF-IndexPair字段或IE，第五指示信息可实现为transmissionType字段，可参照前面的相关描述，在此不赘述。
第一终端在接收到上述的第二消息后，根据第二消息中指示的资源池、传输方式以及 第三资源，确定使用第二消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。可选的，第一终端根据第三资源和传输方式从资源池中确定多次传输信号所使用的目标资源。
以一个具体的例子说明，假设第二消息中，指示出了一个资源池，资源池的频域索引为0-35。第二消息还指示出了两种传输方式：传输方式1(在不同频域资源上多次传输信号的方式)、传输方式2(使用第一资源传输信号的方式)。第二消息还指示出了三个第三资源(频域索引分别是为0、10、20)。
第一终端使用传输方式1发送的信号有两个：信号1，信号2。第一终端根据传输方式1、第一个第三资源(频域索引0)，确定使用传输方式1发送信号1时的目标资源：频域索引为0、1的资源(第一次传输时使用)，频域索引为6、7的资源(第二次传输时使用)，频域索引为12、13的资源(第三次传输时使用)，以此类推。
第一终端根据传输方式1、第二个的第三资源(频域索引10)，确定使用传输方式1发送信号2时的目标资源：频域索引为10、11的资源(第一次传输时使用)，频域索引为16、17的资源(第二次传输时使用)，频域索引为22、23的资源(第三次传输时使用)，以此类推。
第一终端根据传输方式2、第三个的第三资源(频域索引20)，确定使用传输方式2发送信号3时的目标资源：频域索引为20、21的资源(每一次传输时使用)。
其中，信号的传输次数可由网络设备配置或者由协议规定。
可理解的，上述仅为示例性举例，具体实现中，第一终端确定目标资源时可以有更多的实现方法。
可理解的，上述第一种指示方式到第四种指示方式可适用于以下三种场景。
第一种，第一消息中指示的传输方式包括上述第三方面中的任意一种或多种传输方式的场景。
第二种，第一消息中指示的传输方式包括上述第一方面的任意一种或多种传输方式，且网络设备配置给终端的资源池的频域宽度为上述第一方面中的最大频域宽度的场景。
第三种，第一消息中指示的传输方式包括上述第二方面的任意一种或多种传输方式，且网络设备配置给终端的资源池的频域宽度为上述第二方面中的第二终端支持的最大频域宽度的场景。
第五种指示方式，网络设备通过第二消息向第一终端发送第三指示信息、第四指示信息、第六指示信息。第五种指示方式和第一种指示方式的不同之处在于，多了第六指示信息。
第三指示信息用于指示资源池，第四指示信息用于指示第三资源。第六指示信息用于指示传输信号时可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带。其中，第三指示信息可通过频域索引和时域索引指示资源池，第四指示信息也可通过频域索引和时域索引指示第三资源。在第六指示信息用于指示窄带的情况下，第六指示信息可通过窄带索引指示传输信号时可使用的窄带。起始频域位置或结束频域位 置或窄带、资源池和第三资源用于第一终端确定传输信号的目标资源。
这里，传输信号时可使用的资源的频域范围从起始频域位置开始，或到结束频域位置结束，可使用的资源的频域宽度为传输方式中指示的最大频域宽度(当传输方式为上述第一方面中的任意一种或第二方面中的任意一种时)。或者，传输信号时可使用的资源的频域范围为可使用的窄带所在的频域范围。旁路带宽或资源池在频域上可划分为多个相同频域宽度的窄带，每个窄带可通过窄带索引标识。其中，每个窄带的频域宽度为传输方式中指示的最大频域宽度。
例如，参见图3，图3示出了两种可能的窄带划分形式。图3中所示的旁路带宽的频域宽度为18个PRB的频域宽度，即旁路带宽为3.24Mhz，在将旁路带宽划分为窄带时，每个窄带的频域宽度为传输方式中的最大频域宽度(当传输方式为第一方面的任意一种时)，或者传输方式中第二终端支持的最大频域宽度(当传输方式为第二方面的任意一种时)。
参见图3中左图，当传输方式为第一方面的使用6PRB频域宽度内的资源传输信号的方式时，窄带的频域宽度为6PRB的频域宽度，窄带索引共有3个：0，1，2。窄带0的频域位置为索引0-5的PRB所在的频域位置，窄带1的频域位置为索引6-11的PRB所在的的频域位置，窄带3的频域位置为索引12-17的PRB所在的的频域位置。
参见图3中右图，当传输方式为第一方面的使用1PRB频域宽度内的资源传输信号的方式时，在相同旁路带宽下可以包含18个以1PRB为频域宽度的窄带，窄带索引共18个。窄带0的频域位置为索引0的PRB所在的频域位置，窄带1的频域位置为索引1的PRB所在的频域位置，以此类推。
在上述第六指示信息指示窄带索引的情况下，终端可根据传输方式和窄带索引确定可使用的窄带。例如，当传输方式为使用6PRB频域宽度内的资源传输信号的方式，窄带索引为0时，终端可确定可使用的窄带的频域宽度为索引0-5的PRB的频域宽度。
这里，第三指示信息、第四指示信息、第六指示信息可包括在同一个第二消息中，也可分别包括在多个第二消息中。
在一个具体的实施例中，第三指示信息可实现为SL-TF-ResourceConfig字段或IE，第四指示信息可实现为SL-TF-IndexPair字段或IE，第六指示信息可实现成lowest-PRB-index字段，具体如下：
Figure PCTCN2017096616-appb-000007
其中，lowest-PRB-index字段为起始PRB索引，对应于discTF-IndexPair字段所指示的第三资源。可选的，lowest-PRB-index字段可以被替换为narrowband-index字段，用于指示窄带索引。
第一终端在接收到上述的第二消息后，根据第二消息中指示的资源池、第三资源、起始频域位置或结束频域位置或窄带、以及第一消息中指示的传输方式，确定使用第一消息 中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。第一终端确定传输信号时所使用的目标资源的频域范围从起始频域位置开始，或到结束频域位置结束，所使用的目标资源的频域宽度为传输方式中指示的最大频域宽度(当传输方式为上述第一方面中的任意一种或第二方面中的任意一种时)。或者，第一终端确定传输信号时所使用的目标资源的频域范围为指示的窄带所在的频域范围。可选的，第一终端根据传输方式中指示的最大频域宽度确定窄带划分时每个窄带的频域宽度。
以一个具体的例子说明，假设第一消息中顺序指示了两种传输方式以及对应的数据量，假设第一终端使用传输方式1传输的信号有2个：信号1和信号2，使用传输方式2传输的信号有1个，信号3。可参见下表4：
Figure PCTCN2017096616-appb-000008
表4
假设第二消息中，指示出了一个资源池，资源池的频域索引为0-35，并且顺序指示出3个第三资源(频域索引分别是为4、12、22)、3个起始频域位置(频域索引分别是为0、10、20)。
第一终端接收到第二消息后，可分别确定传输3个信号时的目标资源，具体如下：
第一终端根据传输方式1和第一个起始频域位置，可确定通过传输方式1传输信号1时，可使用的资源的频域索引为0-5。根据第一个第三资源(频域索引为4)，可确定传输信号1时所使用的目标资源：频域索引为4、5的资源(第一次传输时使用)，频域索引为0、1的资源(第二次传输时使用)，频域索引为2、3的资源(第三次传输时使用)，以此类推。
第一终端根据传输方式1和第二个起始频域位置，可确定通过传输方式1传输信号2时，可使用的资源的频域索引为10-15。根据第二个第三资源(频域索引为12)，可确定传输信号2时所使用的目标资源：频域索引为12、13的资源(第一次传输时使用)，频域索引为14、15的资源(第二次传输时使用)，频域索引为10、11的资源(第三次传输时使用)，以此类推。
第一终端根据传输方式2和第三个起始频域位置，可确定通过传输方式2传输信号3时，可使用的资源的频域索引为20-27。根据第三个第三资源(频域索引为22)，可确定传输信号3时所使用的目标资源：频域索引为22、23的资源(第一次传输时使用)，频域索引为24、25的资源(第二次传输时使用)，频域索引为26、27的资源(第三次传输时使用)，频域索引为20、21的资源(第四次传输时使用)，以此类推。
其中，信号的传输次数可由网络设备配置或者由协议规定。
可理解的，上述仅为示例性举例，具体实现中，第一终端确定目标资源时可以有更多的实现方法。
第六种指示方式，网络设备通过第二消息向第一终端发送第三指示信息和第六指示信息。
第三指示信息用于指示资源池，第六指示信息用于指示传输信号时可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带。其中，第三指示信息可通过频域索引和时域索引指示资源池。在第六指示信息用于指示窄带的情况下，第六指示信息可通过窄带索引指示传输信号时可使用的窄带。起始频域位置或结束频域位置或窄带，以及资源池用于第一终端确定传输信号的目标资源。
这里，第三指示信息、第六指示信息可包括在同一个第二消息中，也可分别包括在多个第二消息中。
其中，第三指示信息和第六指示信息的实现形式都可参照第五种指示方式中的相关描述，在此不赘述。
第一终端在接收到上述的第二消息后，根据第二消息中指示的资源池、起始频域位置或结束频域位置或窄带、第一消息中指示的传输方式，以及第一终端自主确定的第三资源，可确定使用第一消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。第一终端确定传输信号时所使用的目标资源的频域范围从起始频域位置开始，或到结束频域位置结束，所使用的目标资源的频域宽度为传输方式中指示的最大频域宽度(当传输方式为上述第一方面中的任意一种或第二方面中的任意一种时)。或者，第一终端确定传输信号时所使用的目标资源的频域范围为指示的窄带所在的频域范围。可选的，第一终端根据传输方式中指示的最大频域宽度确定窄带划分时每个窄带的频域宽度。
以一个具体的例子说明，和上述第五种指示方式中的例子类似，不同之处在于这里的第一终端自主确定3个第三资源。第一终端确定的目标资源可参照第五指示方式中的例子，在此不赘述。
第七种指示方式，网络设备通过第二消息向第一终端发送第三指示信息、第五指示信息和第六指示信息。第七种指示方式和第三种指示方式的不同之处在于，多了第六指示信息。
第三指示信息用于指示资源池，第五指示信息用于指示传输方式，第六指示信息用于指示传输信号时可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带。其中，第三指示信息可通过频域索引和时域索引指示资源池。在第六指示信息用于指示窄带的情况下，第六指示信息可通过窄带索引指示传输信号时可使用的窄带。起始频域位置或结束频域位置或窄带、资源池和传输方式用于第一终端确定传输信号的目标资源。
这里，第三指示信息、第五指示信息、第六指示信息可包括在同一个第二消息中，也可分别包括在多个第二消息中。
在一个具体的实施例中，第四指示信息可实现为SL-TF-IndexPair字段或IE，第五指示信息可实现为字段transmissionType，第六指示信息可实现成lowest-PRB-index字段，具体可参考上述第三种指示方式和第五种指示方式中的相关描述。
第一终端在接收到上述的第二消息后，根据第二消息中指示的资源池、传输方式、起 始频域位置或结束频域位置或窄带、以及第一终端自主确定的第三资源，可确定使用第二消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。第一终端确定传输信号时所使用的目标资源的频域范围从起始频域位置开始，或到结束频域位置结束，所使用的目标资源的频域宽度为传输方式中指示的最大频域宽度(当传输方式为上述第一方面中的任意一种或第二方面中的任意一种时)。或者，第一终端确定传输信号时所使用的目标资源的频域范围为指示的窄带所在的频域范围。可选的，第一终端根据传输方式中指示的最大频域宽度确定每个窄带的频域宽度。第一终端根据每个窄带的频域宽度和指示的窄带索引确定指示的窄带所在的频域范围。
以一个具体的例子说明，和上述第五种指示方式中的例子类似，不同之处在于这里的第二消息中指示了传输方式，第一终端自主确定3个第三资源。第一终端确定的目标资源可参照第五指示方式中的例子，在此不赘述。
第八种传输方式，网络设备通过第二消息向第一终端发送第三指示信息、第四指示信息、第五指示信息和第六指示信息。第八种传输方式和第四种传输方式的不同之处在于，多了第六指示信息。
第三指示信息用于指示资源池，第四指示信息用于指示第三资源，第五指示信息用于指示传输方式，第六指示信息用于指示传输信号时可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带。其中，第三指示信息可通过频域索引和时域索引指示资源池，第四指示信息也可通过频域索引和时域索引指示第三资源。在第六指示信息用于指示窄带的情况下，第六指示信息可通过窄带索引指示传输信号时可使用的窄带。起始频域位置或结束频域位置或窄带、资源池、第三资源和传输方式用于第一终端确定传输信号的目标资源。
这里，第三指示信息、第四指示信息、第五指示信息、第六指示信息可包括在同一个第二消息中，也可分别包括在多个第二消息中。
在一个具体的实施例中，第三指示信息可实现为SL-TF-ResourceConfig字段或IE，第四指示信息可实现为SL-TF-IndexPair字段或IE，第五指示信息可实现为字段transmissionType，第六指示信息可实现成lowest-PRB-index字段，具体可参考上述第四种指示方式和第五种指示方式中的相关描述。
第一终端在接收到上述的第二消息后，根据第二消息中指示的资源池、传输方式、第三资源、起始频域位置或结束频域位置或窄带，可确定使用第二消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。第一终端确定传输信号时所使用的目标资源的频域范围从起始频域位置开始，或到结束频域位置结束，所使用的目标资源的频域宽度为传输方式中指示的最大频域宽度(当传输方式为上述第一方面中的任意一种或第二方面中的任意一种时)。或者，第一终端确定传输信号时所使用的目标资源的频域范围为指示的窄带所在的频域范围。可选的，第一终端根据传输方式中指示的最大频域宽度确定窄带划分时每个窄带的频域宽度。第一终端根据每个窄带的频域宽度和指示的窄带索引确定指示的窄带所在的频域范围。
以一个具体的例子说明，和上述第五种指示方式中的例子类似，不同之处在于这里的 第二消息中指示了传输方式。第一终端确定的目标资源可参照第五种指示方式中的例子，在此不赘述。
第九种指示方式，网络设备通过第二消息向第一终端发送第四指示信息、第五指示信息和第六指示信息。
第四指示信息用于指示第三资源，第五指示信息用于指示传输方式，第六指示信息用于指示传输信号时可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带。其中，第四指示信息可通过频域索引和时域索引指示第三资源。在第六指示信息用于指示窄带的情况下，第六指示信息可通过窄带索引指示传输信号时可使用的窄带。起始频域位置或结束频域位置或窄带、第三资源和传输方式用于第一终端确定传输信号的目标资源。
在一个具体的实施例中，第四指示信息可实现为SL-TF-IndexPair字段或IE，可参照前面的相关描述，在此不赘述。
在一个具体的实施例中，第二消息可包括SL-TF-ResourceConfig字段或IE，第五指示信息可实现为其中的字段transmissionType，第六指示信息可实现为其中的字段narrowband-Index，用于指示窄带索引。可选的字段narrowband-Index可以被替换为lowest-PRB-index，用于指示起始PRB索引。具体如下：
Figure PCTCN2017096616-appb-000009
其中，第一终端传输信号可使用的资源的时域位置由SL-OffsetIndicator字段和SubframeBitmapSL字段共同指示。
第一终端在接收到上述的第二消息后，根据第二消息中指示的第三资源、传输方式、可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带，可确定使用第二消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。第一终端确定传输信号时所使用的目标资源的频域范围从起始频域位置开始，或到结束频域位置结束，所使用的目标资源的频域宽度为传输方式中指示的最大频域宽度(当传输方式为上述第一方面中的任意一种或第二方面中的任意一种时)。或者，第一终端确定传输信号时所使用的目标资源的频域范围为指示的窄带所在的频域范围。可选的，第一终端根据传输方式中指示的最大频域宽度确定窄带划分时每个窄带的频域宽度。第一终端根据每个窄带的频域宽度和指示的窄带索引确定指示的窄带所在的频域范围。
以一个具体的例子说明，假设第二消息中，指示出了一种传输方式，即使用6PRB的频域宽度内的资源发送信号的方式。第二消息中还指示出了起始频域位置，频域索引为0。第二消息中还指示出了一个第三资源，频域索引为2。
第一终端接收到第二消息后，可根据传输方式(使用6PRB的频域宽度内的资源发送信 号的方式)和起始频域位置(频域索引为0)，确定出配置的资源池的频域位置，即资源池的频域索引为0-5。
第一终端可根据确定出的资源池、传输方式和第三资源，确定出目标资源：频域索引为2、3的资源(第一次传输时使用)，频域索引为4、5的资源(第二次传输时使用)，频域索引为0、1的资源(第三次传输时使用)，以此类推。
可理解的，上述仅为示例性举例，具体实现中，第一终端确定目标资源时可以有更多的实现方法。
第十种指示方式，网络设备通过第二消息向第一终端发送第五指示信息和第六指示信息。
第五指示信息用于指示传输方式，第六指示信息用于指示传输信号时可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带。在第六指示信息用于指示窄带的情况下，第六指示信息可通过窄带索引指示传输信号时可使用的窄带。起始频域位置或结束频域位置或窄带，以及传输方式用于第一终端确定传输信号的目标资源。
在一个具体的实施例中，第二消息可包括SL-TF-ResourceConfig字段或IE，第五指示信息可实现为其中的字段transmissionType，第六指示信息可实现为其中的字段narrowband-Index，用于指示窄带索引。可选的字段narrowband-Index可以被替换为lowest-PRB-index，用于指示起始PRB索引。具体可参照第九种指示方式中的相关描述，在此不赘述。
第一终端在接收到上述的第二消息后，根据第二消息中指示的传输方式、可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带，以及第一终端自主确定的第三资源可确定使用第二消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。第一终端确定传输信号时所使用的目标资源的频域范围从起始频域位置开始，或到结束频域位置结束，所使用的目标资源的频域宽度为传输方式中指示的最大频域宽度(当传输方式为上述第一方面中的任意一种或第二方面中的任意一种时)。或者，第一终端确定传输信号时所使用的目标资源的频域范围为指示的窄带所在的频域范围。可选的，第一终端根据传输方式中指示的最大频域宽度确定窄带划分时每个窄带的频域宽度。第一终端根据每个窄带的频域宽度和指示的窄带索引确定指示的窄带所在的频域范围。
以一个具体的例子说明，和上述第九种指示方式中的例子类似，不同之处在于第一终端自主确定3个第三资源。第一终端确定的目标资源可参照第九指示方式中的例子，在此不赘述。
第十一种指示方式，网络设备通过第二消息向第一终端发送第四指示信息和第六指示信息。
第四指示信息用于指示第三资源，第六指示信息用于指示传输信号时可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带。在第六指示信息用于指示窄带的情况下，第六指示信息可通过窄带索引指示传输信号时可使用的窄带。起 始频域位置或结束频域位置或窄带，以及第三资源用于第一终端确定传输信号的目标资源。
在一个具体的实施例中，第四指示信息可实现为SL-TF-IndexPair字段或IE，第六指示信息可实现为其中的字段narrowband-Index，可参照前面的相关描述，在此不赘述。
第一终端在接收到上述的第二消息后，根据第二消息中指示的第三资源、可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带，以及第一消息中指示的传输方式，可确定使用第一消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。第一终端确定传输信号时所使用的目标资源的频域范围从起始频域位置开始，或到结束频域位置结束，所使用的目标资源的频域宽度为传输方式中指示的最大频域宽度(当传输方式为上述第一方面中的任意一种或第二方面中的任意一种时)。或者，第一终端确定传输信号时所使用的目标资源的频域范围为指示的窄带所在的频域范围。可选的，第一终端根据传输方式中指示的最大频域宽度确定窄带划分时每个窄带的频域宽度。第一终端根据每个窄带的频域宽度和指示的窄带索引确定指示的窄带所在的频域范围。
以一个具体的例子说明，和上述第九种指示方式中的例子类似，不同之处在于第一终端使用第一消息中的传输方式确定目标资源。第一终端确定的目标资源可参照第九指示方式中的例子，在此不赘述。
第十二种指示方式，网络设备通过第二消息向第一终端发送第六指示信息。
第六指示信息用于指示传输信号时可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带。在第六指示信息用于指示窄带的情况下，第六指示信息可通过窄带索引指示传输信号时可使用的窄带。起始频域位置或结束频域位置或窄带用于第一终端确定传输信号的目标资源。
在一个具体的实施例中，第六指示信息可实现为字段narrowband-Index，用于指示窄带索引，可参照前面的相关描述，在此不赘述。
第一终端在接收到上述的第二消息后，根据第二消息中指示的可使用的资源的起始频域位置或结束频域位置，或者用于指示传输信号时可使用的窄带，以及第一消息中指示的传输方式、第一终端自主确定的第三资源，可确定使用第二消息中的传输方式发送信号时所使用的目标资源。其中，目标资源属于资源池。第一终端确定传输信号时所使用的目标资源的频域范围从起始频域位置开始，或到结束频域位置结束，所使用的目标资源的频域宽度为传输方式中指示的最大频域宽度(当传输方式为上述第一方面中的任意一种或第二方面中的任意一种时)。或者，第一终端确定传输信号时所使用的目标资源的频域范围为指示的窄带所在的频域范围。可选的，第一终端根据传输方式中指示的最大频域宽度确定窄带划分时每个窄带的频域宽度。第一终端根据每个窄带的频域宽度和指示的窄带索引确定指示的窄带所在的频域范围。
以一个具体的例子说明，和上述第九种指示方式中的例子类似，不同之处在于第一终端自主确定3个第三资源，并且第一终端使用第一消息中的传输方式确定目标资源。第一终端确定的目标资源可参照第九种指示方式中的例子，在此不赘述。
在上述第五种指示方式、第八种指示方式、第九种指示方式和第十一种指示信息中，网络设备都通过第二消息向第一终端发送了第四指示信息和第六指示信息。
在可选实施例中，当第六指示信息用于指示窄带时，第四指示信息可通过第三资源在第六指示信息中指示的窄带中的相对位置，来指示第三资源的频域位置。
第四指示信息可实现如下的SL-TF-IndexPair字段或IE：
Figure PCTCN2017096616-appb-000010
其中，字段discSF-Index指示第三资源的时域位置，字段discPRB-IndexInPool指示第三资源在配置给第一终端的资源池中的相对频域位置。
具体的，假设第六指示信息指示的窄带的频域位置为索引6-11的PRB所在的频域位置，如图5所示。那么当discPRB-IndexInPool取值为0时，指示的第三资源的频域位置为窄带中第1个PRB所在的位置，即索引6的PRB所在的频域位置；当discPRB-IndexInPool取值为1时，指示的第三资源的频域位置为窄带中第3个PRB所在的位置，即索引8的PRB所在的频域位置；当discPRB-IndexInPool取值为2时，指示的第三资源的频域位置为资源池中第5个PRB所在的位置，即索引10的PRB所在的频域位置。
上述详细阐述了第一消息和第二消息的功能和信令实现，基于第一消息和第二消息，本申请提出了一种信号传输方法。参见图6，本申请的信号传输方法可包括以下步骤：
S101、第一终端向网络设备发送第一消息，第一消息用于指示所述第一终端传输信号的传输方式。
S102、相应地，网络设备接收到第一终端发送的第一消息，并向第一终端发送第二消息；第二消息用于指示第一终端传输所述信号的资源。
S103、相应地，第一终端接收到网络设备发送的第二消息，并根据第二消息在所述资源上传输所述信号。
这里，第一消息、第二消息的功能、指示方式、信令实现都可参照前述相关内容，在此不赘述。
参见图7，图7示出了本申请提供的一种第一终端的硬件结构示意图。如图7所示，第一终端700可包括：基带芯片110、存储器115(一个或多个计算机可读存储介质)、射频(RF)模块116、外围系统117。这些部件可在一个或多个通信总线114上通信。
外围系统117主要用于实现第一终端700和用户/外部环境之间的交互功能，主要包括第一终端700的输入输出装置。具体实现中，外围系统117可包括：触摸屏控制器118、摄像头控制器119、音频控制器120以及传感器管理模块121。其中，各个控制器可与各自对应的外围设备(如触摸屏123、摄像头124、音频电路125以及传感器126)耦合。需要说明的，外围系统117还可以包括其他I/O外设。
基带芯片110可集成包括：一个或多个处理器111、时钟模块112以及电源管理模块113。集成于基带芯片110中的时钟模块112主要用于为处理器111产生数据传输和时序控制所需要的时钟。集成于基带芯片110中的电源管理模块113主要用于为处理器111、射频模块116以及外围系统提供稳定的、高精确度的电压。
射频(RF)模块116用于接收和发送射频信号，主要集成了第一终端700的接收器和发射器。射频(RF)模块116通过射频信号与网络设备和其他通信设备通信。具体实现中，射频(RF)模块116可包括但不限于：天线系统、RF收发器、一个或多个放大器、调谐器、一个或多个振荡器、数字信号处理器、CODEC芯片、SIM卡、WIFI模块和存储介质等。在一些实施例中，可在单独的芯片上实现射频(RF)模块116。在本申请中，射频模块116可用于和网络设备进行信息交互。
存储器115与处理器111耦合，用于存储各种软件程序和/或多组指令。具体实现中，存储器115可包括高速随机存取的存储器，并且也可包括非易失性存储器，例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器115可以存储操作系统(下述简称系统)，例如ANDROID，IOS，WINDOWS，或者LINUX等嵌入式操作系统。存储器115还可以存储网络通信程序，该网络通信程序可用于与一个或多个附加设备，一个或多个第一终端设备，一个或多个网络设备进行通信。存储器115还可以存储用户接口程序，该用户接口程序可以通过图形化的操作界面将应用程序的内容形象逼真的显示出来，并通过菜单、对话框以及按键等输入控件接收用户对应用程序的控制操作。
具体实现中，第一终端700可以是图1所示通信系统中的第一终端，可实施为蜂窝电话、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、可穿戴设备以及未来5G网络中的移动台或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的第一终端设备等。
应当理解，第一终端700仅为本申请提供的一个例子，并且，第一终端700可具有比示出的部件更多或更少的部件，可以组合两个或更多个部件，或者可具有部件的不同配置实现。
参见图8，图8示出了本申请提供的网络设备800的一种实现方式的结构框图。该网络设备可包括：通信接口811、一个或多个处理器812、发射器813、接收器814、耦合器815、天线816、存储器817。这些部件可通过总线或者其它方式连接，图8以通过总线连接为例。其中：
通信接口811可用于网络设备800与其他通信设备，例如第一终端、其他网络设备等进行通信。具体实现中，通信接口811可以是网络通信接口，例如LTE(4G)通信接口、5G或者未来新空口的通信接口。不限于无线通信接口，网络设备800还可以配置有有线的通信接口来支持有线通信。
天线816可用于将传输线中的电磁能转换成自由空间中的电磁波，或者将自由空间中的电磁波转换成传输线中的电磁能。耦合器815可用于将通信号分成多路，分配给多个的 接收器814。
发射器813可用于对处理器812输出的信号进行发射处理，用于向第一终端或者其他网络设备发射信号。接收器814可用于对天线816接收的信号进行接收处理，用于接收第一终端或者其他网络设备发射的信号。发射器813和接收器814的数量均可以是一个或者多个。
在本申请中，发射器813用于向第一终端发送第二消息等。
存储器817与处理器812耦合，用于存储各种软件程序和/或多组指令。具体实现中，存储器812可包括高速随机存取的存储器，并且也可包括非易失性存储器，例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器812可以存储操作系统(下述简称系统)，例如uCOS、VxWorks、RTLinux等嵌入式操作系统。存储器812还可以存储网络通信程序，该网络通信程序可用于与一个或多个附加设备，一个或多个第一终端设备，一个或多个网络设备进行通信。
在本申请的一些实施例中，存储器812可用于存储本申请的一个或多个实施例提供的传输信号的方法在网络设备800侧的实现程序。关于本申请的一个或多个实施例提供的传输信号的方法的实现，请参考前述实施例。
处理器812可包括：管理/通信模块(Administration Module/Communication Module，AM/CM)(用于话路交换和信息交换的中心)、基本模块(BasicModule，BM)(用于完成呼叫处理、信令处理、无线资源管理、无线链路的管理和电路维护功能)、码变换及子复用单元(Transcoder and SubMultiplexer，TCSM)(用于完成复用解复用及码变换功能)等等。
本申请中，处理器812可用于读取和执行计算机可读指令。具体的，处理器812可用于调用存储于存储器817中的程序，例如本申请的一个或多个实施例提供的传输信号的方法在网络设备800侧的实现程序，并执行该程序包含的指令。
具体实现中，网络设备800可以是图1所示通信系统中的网络设备，可实施为基站收发台，无线收发器，一个基本服务集(BSS)，一个扩展服务集(ESS)，NodeB，eNodeB等等。网络设备800可以实施为几种不同类型的基站，例如宏基站、微基站等。
需要说明的，图8所示的网络设备800仅仅是本申请的一种实现方式，实际应用中，网络设备800还可以包括更多或更少的部件，这里不作限制。
参见图9，图9是本申请提供的一种第一终端900和网络设备910的结构示意图。第一终端900、网络设备910可以分别是前述图1所示通信系统，或者图6所示方法实施例中的第一终端和网络设备。
首先，如图所示，第一终端900可包括：发送单元901、接收单元902、处理单元903，其中，
所述处理单元903用于配置第一消息，所述第一消息用于指示所述第一终端传输信号的传输方式；
所述发送单元901用于向网络设备发送所述第一消息；
所述接收单元902用于接收所述网络设备发送的第二消息，所述第二消息用于指示所 述第一终端传输所述信号的资源；
所述发送单元901还用于在所述资源上传输所述信号。
在可选实施例中，所述第一消息还用于指示使用所述传输方式传输的信号的个数。
在可选实施例中，所述信号的传输方式为所述第一终端传输所述信号时使用资源的方式。所述信号的传输方式可从三个方面进行分类，具体可参照前文相关描述，在此不赘述。
可理解的，第一消息和第二消息包括的信息和信令实现可参照前文相关描述。
可以理解的，关于图9的第一终端900包括的各个功能块的具体实现方式，可参考前述实施例，这里不赘述。
其次，如图所示，网络设备910可包括：发送单元911、接收单元912、处理单元913，其中，
所述接收单元912用于接收第一终端发送的第一消息；所述第一消息用于指示所述第一终端传输信号的传输方式；
所述处理单元913用于配置第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；
所述发送单元911用于向所述第一终端发送所述第二消息。
在可选实施例中，所述第一消息还用于指示使用所述传输方式传输的信号的个数。
在可选实施例中，所述信号的传输方式为所述第一终端传输所述信号时使用资源的方式。所述信号的传输方式可从三个方面进行分类，具体可参照前文相关描述，在此不赘述。
可理解的，第一消息和第二消息包括的信息和信令实现可参照前文相关描述。
可以理解的，关于图9的网络设备910包括的各个功能块的具体实现方式，可参考前述实施例，这里不赘述。
另外，本申请还提供了一种通信系统，所述通信系统可以是图1所示的通信系统，可包括：第一终端和网络设备。其中，所述第一终端可以是图6方法实施例中的第一终端，所述网络设备可以是图6方法实施例中的网络设备。
具体实现中，所述第一终端可以是图7或图9所示的第一终端，所述网络设备可以是图8或图9所示的网络设备
关于所述第一终端和网络设备的具体实现可参考前述相关内容，这里不再赘述。
综上，实施本申请，第一终端在向网络设备请求用于发送信息的资源时，同时通知网络设备信号的传输方式，可使网络设备为第一终端配置相应的资源，第一终端可从配置的资源中确定目标资源，并通过对应的传输方式使用目标资源传输信号。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，该流程可以由计算机程序来指令相关的硬件完成，该程序可存储于计算机可读取存储介质中，该程序在执行时，可包括如上述各方法实施例的流程。而前述的存储介质包括：ROM或随机存储记忆体RAM、磁碟或者光盘等各种可存储程序代码的介质。

Claims (42)

  1. 一种信号传输方法，其特征在于，包括：
    第一终端向网络设备发送第一消息；所述第一消息用于指示所述第一终端传输信号的传输方式；
    接收所述网络设备发送的第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；
    在所述资源上传输所述信号。
  2. 如权利要求1所述的方法，其特征在于，所述第一消息还用于指示使用所述传输方式传输的信号的个数。
  3. 如权利要求1-2任一项所述的方法，其特征在于，所述信号的传输方式为所述第一终端传输所述信号时使用资源的方式。
  4. 如权利要求3所述的方法，其特征在于，所述使用资源的方式包括：
    使用不同的最大频域宽度内的资源传输信号的方式。
  5. 如权利要求4所述的方法，其特征在于，所述第一消息具体用于指示所述最大频域宽度。
  6. 如权利要求4或5所述的方法，其特征在于，所述最大频域宽度包括：1个PRB、6个PRB、旁路带宽或者资源池的频域宽度中的任意一种。
  7. 如权利要求3所述的方法，其特征在于，所述使用资源的方式包括以下至少一项：
    在不同频域资源上多次传输信号的方式；所述频域资源的频域宽度为接收所述信号的第二终端接收旁路信号时的最大频域宽度；或者，
    使用第一资源传输信号的方式；所述第一资源由所述第一终端根据所述第一终端接收到的旁路信号所占用的第二资源确定。
  8. 如权利要求7所述的方法，其特征在于，在所述使用资源的方式包括使用第一资源传输信号的方式的情况下，所述第一消息还包括：用于指示所述第一资源或所述第二资源的指示信息。
  9. 如权利要求1-8任一项所述的方法，其特征在于，所述在所述资源上传输所述信号包括：
    根据所述第一消息指示的传输方式传输所述信号；或者，
    所述第二消息还用于指示传输所述信号时的传输方式，根据所述第二消息指示的传输 方式传输所述信号。
  10. 如权利要求9所述的方法，其特征在于，
    在根据所述第一消息指示的传输方式传输所述信号的情况下，所述根据所述第一消息指示的传输方式传输所述信号包括：根据所述第一消息指示的传输方式和第三资源，从所述资源中确定出目标资源，并使用所述目标资源传输所述信号；
    在根据所述第二消息指示的传输方式传输所述信号的情况下，所述根据所述第二消息指示的传输方式传输所述信号包括：根据所述第二消息指示的传输方式和第三资源，从所述资源中确定出目标资源，并使用所述目标资源传输所述信号；
    其中，所述第三资源由所述第一终端确定，或者，由所述第二消息指示。
  11. 一种信号传输方法，其特征在于，包括：
    网络设备接收第一终端发送的第一消息；所述第一消息用于指示所述第一终端传输信号的传输方式；
    向所述第一终端发送第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源。
  12. 如权利要求11所述的方法，其特征在于，所述第一消息还用于指示使用所述传输方式传输的信号的个数。
  13. 如权利要求11-12任一项所述的方法，其特征在于，所述信号的传输方式为所述第一终端传输所述信号时使用资源的方式。
  14. 如权利要求13所述的方法，其特征在于，所述使用资源的方式包括：
    使用不同的最大频域宽度内的资源传输信号的方式。
  15. 如权利要求14所述的方法，其特征在于，所述第一消息具体用于指示所述最大频域宽度。
  16. 如权利要求14或15所述的方法，其特征在于，所述最大频域宽度包括：1个PRB、6个PRB、旁路带宽或者资源池的频域宽度中的任意一种。
  17. 如权利要求13所述的方法，其特征在于，所述使用资源的方式包括以下至少一项：
    在不同频域资源上多次传输信号的方式；所述频域资源的频域宽度为接收所述信号的第二终端接收旁路信号时的最大频域宽度；或者，
    使用第一资源传输信号的方式；所述第一资源由所述第一终端根据所述第一终端接收到的旁路信号所占用的第二资源确定。
  18. 如权利要求17所述的方法，其特征在于，在所述使用资源的方式包括使用第一资源传输信号的方式的情况下，所述第一消息还包括：用于指示所述第一资源或所述第二资源的指示信息。
  19. 如权利要求11-18任一项所述的方法，其特征在于，所述第二消息还用于指示传输所述信号时的传输方式。
  20. 如权利要求19所述的方法，其特征在于，所述第二消息还用于指示第三资源，所述第三资源和所述传输方式用于所述第一终端从所述第二消息指示的资源中确定出目标资源，并使用所述目标资源传输所述信号。
  21. 一种第一终端，其特征在于，包括：发送单元、接收单元、处理单元，其中，
    所述处理单元用于配置第一消息，所述第一消息用于指示所述第一终端传输信号的传输方式；
    所述发送单元用于向网络设备发送所述第一消息；
    所述接收单元用于接收所述网络设备发送的第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；
    所述发送单元还用于在所述资源上传输所述信号。
  22. 如权利要求21所述的第一终端，其特征在于，所述第一消息还用于指示使用所述传输方式传输的信号的个数。
  23. 如权利要求21-22任一项所述的第一终端，其特征在于，所述信号的传输方式为所述第一终端传输所述信号时使用资源的方式。
  24. 如权利要求23所述的第一终端，其特征在于，所述使用资源的方式包括：
    使用不同的最大频域宽度内的资源传输信号的方式。
  25. 如权利要求24所述的第一终端，其特征在于，所述第一消息具体用于指示所述最大频域宽度。
  26. 如权利要求24或25所述的第一终端，其特征在于，所述最大频域宽度包括：1个PRB、6个PRB、旁路带宽或者资源池的频域宽度中的任意一种。
  27. 如权利要求23所述的第一终端，其特征在于，所述使用资源的方式包括以下至少一项：
    在不同频域资源上多次传输信号的方式；所述频域资源的频域宽度为接收所述信号的第二终端接收旁路信号时的最大频域宽度；或者，
    使用第一资源传输信号的方式；所述第一资源由所述处理单元根据所述接收单元接收到的旁路信号所占用的第二资源确定。
  28. 如权利要求27所述的第一终端，其特征在于，在所述使用资源的方式包括使用第一资源传输信号的方式的情况下，所述第一消息还包括：用于指示所述第一资源或所述第二资源的指示信息。
  29. 如权利要求21-28任一项所述的第一终端，其特征在于，所述发送单元具体用于：
    根据所述第一消息指示的传输方式传输所述信号；或者，
    所述第二消息还用于指示传输所述信号时的传输方式，根据所述第二消息指示的传输方式传输所述信号。
  30. 如权利要求29所述的第一终端，其特征在于，
    在所述发送单元具体用于根据所述第一消息指示的传输方式传输所述信号的情况下，所述处理单元还用于根据所述第一消息指示的传输方式和第三资源，从所述资源中确定出目标资源；所述发送单元具体用于使用所述目标资源传输所述信号；
    在所述发送单元具体用于根据所述第二消息指示的传输方式传输所述信号的情况下，所述处理单元还用于根据所述第二消息指示的传输方式和第三资源，从所述资源中确定出目标资源；所述发送单元具体用于使用所述目标资源传输所述信号；
    其中，所述第三资源由所述处理单元确定，或者，由所述第二消息指示。
  31. 一种网络设备，其特征在于，包括：发送单元、接收单元、处理单元，其中，
    所述接收单元用于接收第一终端发送的第一消息；所述第一消息用于指示所述第一终端传输信号的传输方式；
    所述处理单元用于配置第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；
    所述发送单元用于向所述第一终端发送所述第二消息。
  32. 如权利要求31所述的网络设备，其特征在于，所述第一消息还用于指示使用所述传输方式传输的信号的个数。
  33. 如权利要求31-32任一项所述的网络设备，其特征在于，所述信号的传输方式为所述第一终端传输所述信号时使用资源的方式。
  34. 如权利要求33所述的网络设备，其特征在于，所述使用资源的方式包括：
    使用不同的最大频域宽度内的资源传输信号的方式。
  35. 如权利要求34所述的网络设备，其特征在于，所述第一消息具体用于指示所述最 大频域宽度。
  36. 如权利要求34或35所述的网络设备，其特征在于，所述最大频域宽度包括：1个PRB、6个PRB、旁路带宽或者资源池的频域宽度中的任意一种。
  37. 如权利要求33所述的网络设备，其特征在于，所述使用资源的方式包括以下至少一项：
    在不同频域资源上多次传输信号的方式；所述频域资源的频域宽度为接收所述信号的第二终端接收旁路信号时的最大频域宽度；或者，
    使用第一资源传输信号的方式；所述第一资源由所述第一终端根据所述第一终端接收到的旁路信号所占用的第二资源确定。
  38. 如权利要求37所述的网络设备，其特征在于，在所述使用资源的方式包括使用第一资源传输信号的方式的情况下，所述第一消息还包括：用于指示所述第一资源或所述第二资源的指示信息。
  39. 如权利要求31-38任一项所述的网络设备，其特征在于，所述第二消息还用于指示传输所述信号时的传输方式。
  40. 如权利要求49所述的网络设备，其特征在于，所述第二消息还用于指示第三资源，所述第三资源和所述传输方式用于所述第一终端从所述第二消息指示的资源中确定出目标资源，并使用所述目标资源传输所述信号。
  41. 一种第一终端，其特征在于，包括：发射器、接收器、处理器，其中，
    所述处理器用于配置第一消息，所述第一消息用于指示所述第一终端传输信号的传输方式；
    所述发射器用于向网络设备发送所述第一消息；
    所述接收器用于接收所述网络设备发送的第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；
    所述发射器还用于在所述资源上传输所述信号。
  42. 一种网络设备，其特征在于，包括：发射器、接收器、处理器，其中，
    所述接收器用于接收第一终端发送的第一消息；所述第一消息用于指示所述第一终端传输信号的传输方式；
    所述处理器用于配置第二消息，所述第二消息用于指示所述第一终端传输所述信号的资源；
    所述发射器用于向所述第一终端发送所述第二消息。
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