WO2022037352A1 - 一种信息传输方法和通信装置 - Google Patents

一种信息传输方法和通信装置 Download PDF

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Publication number
WO2022037352A1
WO2022037352A1 PCT/CN2021/107545 CN2021107545W WO2022037352A1 WO 2022037352 A1 WO2022037352 A1 WO 2022037352A1 CN 2021107545 W CN2021107545 W CN 2021107545W WO 2022037352 A1 WO2022037352 A1 WO 2022037352A1
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Prior art keywords
interference
reference signal
channel
signal
group
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PCT/CN2021/107545
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English (en)
French (fr)
Inventor
彭兰
李雪茹
何泓利
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to EP21857447.3A priority Critical patent/EP4192167A4/en
Publication of WO2022037352A1 publication Critical patent/WO2022037352A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present application relates to the field of communication, and in particular, to an information transmission method and a communication device.
  • Unlicensed sidelink (sidelink-unlicense, SL-U) technology is an important branch of cellular IoT technology. The existence of this SL-U technology creates broad application prospects for IoT applications and subverts traditional cellular network communications. Architecture and even how it operates. For example, vehicle to x (V2X) is a scenario and technology evolution based on a sidelink (sidelink) architecture.
  • V2X vehicle to x
  • the spectrum of SL-U is unlicensed spectrum, which is open and can be used effectively to improve data transmission performance and speed. Unlicensed spectrum is unlicensed, and different communication systems can transmit and compete for resources on the unlicensed spectrum.
  • SL-U One of the typical scenarios of SL-U is to run in groups, which can support local team scenarios.
  • the terminal devices in the team need to perform carrier sensing (CS).
  • CS carrier sensing
  • Embodiments of the present application provide an information transmission method and a communication device, which are used to improve network capacity and resource efficiency.
  • an embodiment of the present application provides an information transmission method, and the execution body of the method may be either a first device or a chip applied to the first device.
  • the first device and the second device have the same group identifier, and data and signaling are transmitted between the first device and the second device.
  • the method includes:
  • the first device performs interference measurement on a first time-frequency resource to determine interference information, where the first time-frequency resource is determined according to configuration information of an IM reference signal for interference measurement, and the IM reference signal is used for Measure the interference situation of the channel; the time-frequency resources of the IM reference signal do not overlap with the time-frequency resources of the non-zero power signal, and the non-zero power signal is sent by the second device, and the second device is the same as the first device.
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • the time-frequency resources of the IM reference signal do not overlap with the time-frequency resources of the non-zero power signal, and the configuration information of the IM reference signal can be used to determine the first time-frequency resource.
  • the interference measurement is performed on the resource to determine the interference information.
  • the interference information is the inter-group interference of the group where the first device and the second device are located.
  • the interference information can be used to determine whether the channel is in an idle state. Therefore, in the embodiment of the present application, the first A device can determine whether the channel is idle.
  • the idle channel specifically refers to the idle channel between the groups, and then the idle channel between the groups can be used for data transmission to improve the network capacity and resource efficiency.
  • the IM reference signal is determined according to the group identifier of the second device.
  • the second device configures the above-mentioned IM reference signal according to the group identifier of the second device, the first device and the second device have the same group identifier, and the first device and the second device have the same group identifier.
  • the device can identify the IM reference signal corresponding to the group according to the group identifier in which the first device is located, so that the first device can identify the IM reference signal corresponding to different group identifiers.
  • the IM reference signal is a zero-power reference signal.
  • the energy measured by the first device on the first time-frequency resource is the interference information, that is, the interference signal measured on the first time-frequency resource is the inter-group interference strength, and the inter-group interference strength It may be called inter-group and inter-system (inter-group/system) interference.
  • the first time-frequency resource includes only the last n sub-time units in the time unit where the IM reference signal is located in the time domain, the value of n is less than or equal to N/2, and the N is The number of sub-time units in the time unit, and the value of N is a positive integer.
  • the first time-frequency resource may only include the last n sub-time units in the time unit where the IM reference signal is located, that is, the IM reference signal is not in the first (Nn) sub-time units of the time unit.
  • transmission For example, a time unit may be a slot, and a sub-time unit may be a symbol.
  • the first device determines the interference information, including:
  • the first device determines the interference information according to the following manner:
  • the P 1 represents the interference power measured by the first device on the first time-frequency resource
  • the P 2 represents the interference information
  • the M 2 is the measurement bandwidth in the channel competition mechanism
  • the M1 is the bandwidth occupied by the IM reference signal
  • the channel is in a non-idle state
  • the channel is in an idle state.
  • the interference power P 1 measured by the first device on the first time-frequency resource is converted according to the above formula to obtain the interference information P 2 , and the final interference information can be obtained by the above formula, based on The interference information can determine whether the channel is idle.
  • an embodiment of the present application further provides an information transmission method, where the execution body of the method may be either a second device or a chip applied to the second device.
  • the second device and the first device have the same group identifier, and data and signaling are transmitted between the second device and the first device.
  • the method includes:
  • the second device generates a non-zero power signal, and the time-frequency resources of the non-zero power signal do not overlap with the time-frequency resources of the interference measurement IM reference signal configured by the second device for the first device;
  • the second device sends the non-zero power signal to a first device, where the second device is a device having the same group identification as the first device.
  • the interference measurement IM reference signal configured by the second device for the first device is determined according to the group identifier of the second device.
  • an embodiment of the present application further provides an information transmission method, where the execution body of the method may be either the first device or a chip applied to the first device.
  • the first device and the second device have the same group identifier, and data and signaling are transmitted between the first device and the second device.
  • the method includes:
  • the first device receives the first reference signal from the second device, and measures the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, where the value of M is a positive integer ;
  • the first device determines the first interference signal strength according to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the received power of the first reference signal in the time unit;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • obtaining, by the first device, the received power of the first reference signal in the time unit including:
  • the first device performs reference signal measurement on the frequency resource corresponding to the time unit where the first reference signal is located, so as to obtain the received power of the first reference signal within the time unit.
  • the first device may obtain the frequency resource corresponding to the time unit where the first reference signal is located by using the configuration information of the first reference signal, and then the first device performs the frequency resource corresponding to the time unit where the first reference signal is located.
  • the received power of the first reference signal in a time unit is obtained through the measurement result.
  • the embodiment of the present application does not provide a detailed process.
  • the first device determines the first reference signal according to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the received power of the first reference signal in the time unit.
  • - Interfering signal strength including:
  • the first device determines that the strength of the first interference signal is equal to the last M of the time unit where the first reference signal is located on the frequency resource in which data is transmitted in the group where the first device and the second device are located The total channel energy in sub-time units, minus the received power of the first reference signal in the time unit; or,
  • the first device determines that the strength of the first interference signal is equal to the last M of the time unit where the first reference signal is located on the frequency resource in which no data is transmitted in the group where the first device and the second device are located The total energy of the channel in sub-time units.
  • the frequency resources of the group in which the first device is located can be divided into two types: one is frequency resources with data transmission in the group, and the other is frequency resources with or without data transmission in the group.
  • the first interference signal strength can be obtained by performing a subtraction operation between the aforementioned total energy and the received power.
  • the total energy of the channel received by the first device is the first interference signal strength.
  • the first interference signal strength can be determined by considering whether there is a frequency resource for data transmission in the group.
  • the method further includes:
  • the first device adjusts the strength of the first interference signal according to the power correspondence between the reference signal and the data signal, to obtain the adjusted strength of the first interference signal;
  • the method also includes:
  • the first device determines whether the channel is in an idle state according to the adjusted first interference signal strength.
  • the strength of the first interference signal determined by the first device is obtained from the total energy of the last M sub-time units where the first reference signal is located, and the received power corresponding to the first reference signal.
  • the power of the reference signal can be aligned with the power of the data signal, and the corresponding relationship between the power of the reference signal and the data signal can be obtained, for example, the corresponding relationship It can be a proportional relationship between the reference signal and the data signal, and the proportional relationship can be obtained through configuration information.
  • the first interference signal strength is adjusted according to the power correspondence between the reference signal and the data signal, so that the obtained adjusted first interference signal strength can represent a more real channel environment interference situation.
  • the first reference signal is a channel demodulation first reference signal DMRS.
  • the first reference signal is carried on a physical sidelink shared channel or a physical sidelink control channel.
  • the method further includes:
  • the first device converts the first interference signal strength into inter-group interference power in the following manner:
  • the P 1 represents the strength of the first interference signal
  • the P 2 represents the inter-group interference power
  • the M 2 is the measurement bandwidth in the channel competition mechanism
  • the M 1 is the first reference The bandwidth occupied by the signal
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • the interference power P 1 measured by the first device on the first time-frequency resource is converted according to the above formula to obtain the interference information P 2 , and the final interference information can be obtained by the above formula, based on The interference information can determine whether the channel is idle.
  • the embodiments of the present application further provide an information transmission method, where the execution body of the method may be either the first device or a chip applied to the first device.
  • the first device and the second device have the same group identifier, and data and signaling are transmitted between the first device and the second device.
  • the method includes:
  • the first device determines the first interference signal strength of the channel used by the first device to send the message, wherein the first interference signal strength does not include the second interference signal strength, and the second interference signal strength is the second interference signal strength.
  • the interference signal strength caused by the device to the first device, the second device is a device with the same group identifier as the first device, and the second device is not the device that sends the reference signal;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • an embodiment of the present application further provides an information transmission method, where the execution body of the method may be either the first device or a chip applied to the first device.
  • the first device and the second device have the same group identifier, and data and signaling are transmitted between the first device and the second device.
  • the method includes:
  • the first device measures interference information on a first time resource, and determines the strength of the first interference information, where the first time resource is the first n sub-time units before the time when the first device sends a data message or a control message, the The value of n is less than or equal to N/2, the N is the number of sub-time units in the time unit in which the first device sends a data message or a control message, and the value of N is a positive integer;
  • An interference information strength does not include the second interference information strength, and the second interference information strength is the interference caused by the second device to the first device, and the second device has the same group identifier as the first device equipment;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • an embodiment of the present application further provides an information transmission method, the execution subject of the method may be either a first device and a second device, or a chip applied to the first device and a chip applied to the second device .
  • the first device and the second device have the same group identifier, and data and signaling are transmitted between the first device and the second device.
  • the method includes:
  • the second device configures a first time-frequency resource, where the first time-frequency resource is configuration information of an IM reference signal for interference measurement; the IM reference signal is used to measure the interference situation of the channel;
  • the second device generates a non-zero power signal and sends the non-zero power signal to the first device;
  • the first device performs interference measurement on a first time-frequency resource to determine interference information, where the first time-frequency resource is determined according to configuration information of an IM reference signal for interference measurement, and the IM reference signal is used for Measure the interference situation of the channel; the time-frequency resources of the IM reference signal do not overlap with the time-frequency resources of the non-zero power signal;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • an embodiment of the present application further provides an information transmission method, where the execution subject of the method may be either a first device and a second device, or a chip applied to the first device and a chip applied to the second device .
  • the first device and the second device have the same group identifier, and data and signaling are transmitted between the first device and the second device.
  • the method includes:
  • the first device receives the first reference signal from the second device, and measures the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, where the value of M is positive integer;
  • the first device determines the first interference signal strength according to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the received power of the first reference signal in the time unit;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • a communication apparatus including any one of the methods for performing any one of the above first aspect, the third aspect to the fourth aspect, the fifth aspect to the seventh aspect and the method performed by the first device
  • a ninth aspect provides a communication device, the device comprising a unit for performing each step of any one of the methods performed by the second device in the second aspect, the fifth aspect to the seventh aspect, or, including using A unit for performing each step in any one possible implementation manner of the method performed by the second device in the second aspect, the fifth aspect to the seventh aspect above.
  • a communication device in a tenth aspect, includes at least one processor and a memory, the at least one processor is configured to execute the first aspect, the third aspect to the fourth aspect, and the fifth aspect to the seventh aspect.
  • the method of any one of the methods performed by a device, or, for performing any one of the methods performed by the first device in the first aspect, the third aspect to the fourth aspect, and the fifth aspect to the seventh aspect may be method in the implementation.
  • a communication apparatus the apparatus includes at least one processor and a memory, and the at least one processor is configured to execute any one of the second aspect, the fifth aspect to the seventh aspect, and the second device execution.
  • a twelfth aspect provides a communication device, the device includes at least one processor and an interface circuit, the at least one processor is configured to perform the above first aspect, the third aspect to the fourth aspect, the fifth aspect to the seventh aspect
  • the method of any one of the methods performed by the first device in the above, or, including any one of the methods performed by the first device for performing the above first aspect, the third aspect to the fourth aspect, and the fifth aspect to the seventh aspect On the one hand, a method of each step in a possible implementation manner.
  • a thirteenth aspect provides a communication apparatus, the apparatus includes at least one processor and an interface circuit, where the at least one processor is configured to execute the method performed by the second device in the above second aspect, the fifth aspect to the seventh aspect
  • a fourteenth aspect provides a terminal device, where the terminal device includes any one of the communication apparatuses provided in the eighth aspect, the tenth aspect, or the twelfth aspect.
  • a fifteenth aspect provides a terminal device, where the terminal device includes any one of the communication apparatuses provided in the ninth aspect, the eleventh aspect, or the thirteenth aspect.
  • a sixteenth aspect provides a computer program product, the computer program product comprising a computer program, when executed by a processor, for performing the method in any one of the first to seventh aspects, or , for executing the method in any possible implementation manner of any one of the first aspect to the seventh aspect.
  • a seventeenth aspect provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed, is used to execute any one of the first to seventh aspects.
  • An eighteenth aspect provides a chip, the chip comprising: a processor for calling and running a computer program from a memory, so that a communication device installed with the chip executes any one of the first to seventh aspects The method, or the method in any possible implementation manner of any one of the first aspect to the seventh aspect.
  • the embodiments of the present application have the following advantages:
  • the first device performs interference measurement on the first time-frequency resource to determine the interference information, where the first time-frequency resource is determined according to the configuration information of the IM reference signal for interference measurement, and the IM reference signal uses In order to measure the interference of the channel; the time-frequency resources of the IM reference signal do not overlap with the time-frequency resources of the non-zero power signal, and the non-zero power signal is sent by the second device, and the second device is a device with the same group identifier as the first device. ; The first device determines whether the channel is in an idle state according to the interference information.
  • the time-frequency resources of the IM reference signal do not overlap with the time-frequency resources of the non-zero power signal, and the configuration information of the IM reference signal can be used to determine the first time-frequency resource.
  • the interference measurement is performed on the resource to determine the interference information.
  • the interference information is the inter-group interference of the group where the first device and the second device are located.
  • the interference information can be used to determine whether the channel is in an idle state. Therefore, in the embodiment of the present application, the first A device can determine whether the channel is idle.
  • the idle channel specifically refers to the idle channel between the groups, and then the idle channel between the groups can be used for data transmission to improve the network capacity and resource efficiency.
  • the first device receives the first reference signal from the second device, and measures the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, where M is a positive integer; The first device obtains the received power of the first reference signal in the time unit; the first device obtains the received power of the first reference signal in the time unit according to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the received power of the first reference signal in the time unit Determine the strength of the first interference signal; the first device determines whether the channel is in an idle state according to the strength of the first interference signal.
  • the second device obtains the total received energy in the last M sub-time units of the time unit where the first reference signal is located, and the total energy is the total energy received by the first device on the channel (may be referred to as total energy for short) ;
  • the first device obtains the received power of the first reference signal, which is the effective power of the first reference signal on the channel, so the first interference signal strength can be determined by the above-mentioned total energy and the above-mentioned received power, and the first interference signal strength can be determined by the above-mentioned total energy and the above-mentioned received power.
  • the first interference signal strength is the inter-group interference between the groups where the first device and the second device belong, and the first interference signal strength can be used to determine whether the channel is in an idle state. Therefore, in this embodiment of the present application, the first device can determine whether the channel is idle.
  • channel idle specifically refers to the idle channel between groups, and then the idle channel between groups can be used for data transmission, so as to improve network capacity and resource efficiency.
  • FIG. 1 is a schematic diagram of a scenario of an SL-U provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of another SL-U scenario provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a mobile communication system according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of forming a group with a first device and other devices in an embodiment of the present application
  • FIG. 5 is a schematic diagram of forming a group with a second device and other devices in an embodiment of the present application
  • FIG. 6 is a schematic diagram of forming a group between a second device and a first device in an embodiment of the present application
  • 7a is a schematic diagram of adding an uplink service to GM2 in the middle of the embodiment of the application;
  • Fig. 7b is a schematic diagram of the simultaneous downlink service performed by GM1 and GM2 in the embodiment of the application;
  • FIG. 8 is a schematic diagram of an interaction flow of an information transmission method provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of an interaction flow of another information transmission method provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a scenario in which a UE performs side link communication according to an embodiment of the present application
  • FIG. 11 is a schematic diagram of a scenario in which a group mechanism is adopted in side link communication according to an embodiment of the present application.
  • 12a is a schematic diagram of a time-frequency resource pattern of an IM reference signal provided by an embodiment of the present application
  • 12b is a schematic diagram of another time-frequency resource pattern of an IM reference signal provided by an embodiment of the present application.
  • 12c is a schematic diagram of another time-frequency resource pattern of an IM reference signal provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of an application scenario for calculating inter-group interference signal strength according to an embodiment of the present application
  • FIG. 14 is a schematic diagram of an application scenario for calculating inter-group interference signal strength according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a first device according to an embodiment of the application.
  • FIG. 16 is a schematic structural diagram of a second device according to an embodiment of the application.
  • FIG. 17 is a schematic structural diagram of a first device according to an embodiment of the application.
  • FIG. 18 is a schematic structural diagram of a first device according to an embodiment of the application.
  • FIG. 19 is a schematic structural diagram of a second device according to an embodiment of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • a feature defined as “first” or “second” may expressly or implicitly include one or more of that feature.
  • plural means two or more.
  • V2X vehicle to other equipment
  • D2D device to device
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access, WiMAX
  • the terminal device in this embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device.
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • it may be an in-vehicle module, in-vehicle module, in-vehicle component, in-vehicle chip or in-vehicle unit built into the vehicle as one or more components or units, and the vehicle uses the built-in in-vehicle module, in-vehicle module, in-vehicle component, in-vehicle chip , on-board units or roadside stations, etc.
  • it may also be a terminal device in a future 5G network or a terminal device in a future evolved public land mobile communication network (Public Land Mobile Network, PLMN), etc., which is not limited in this embodiment of the present application.
  • PLMN Public Land Mobile Network
  • the network device may have a device capable of providing a random access function for terminal devices or a chip that can be provided in the device, and the device includes but is not limited to: an evolved type Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WIFI) system access point (access point, AP) , wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP), etc., can also be 5G, such as NR, gNB in the system, or, transmission point (TRP or TP) ), one
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • This hardware layer includes hardware such as central processing unit (CPU), memory management unit (MMU), and memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the present application do not specifically limit the specific structure of the execution body of the methods provided by the embodiments of the present application, as long as the program that records the codes of the methods provided by the embodiments of the present application can be executed to provide the methods provided by the embodiments of the present application.
  • the execution subject of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call and execute a program.
  • various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques.
  • article of manufacture encompasses a computer program accessible from any computer readable device, carrier or medium.
  • computer readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs) etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), card, stick or key drives, etc.).
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • V2X communication is an important key technology for realizing environmental perception and information interaction in the Internet of Vehicles.
  • Other devices here can be other vehicles, other infrastructures, pedestrians, terminal devices, etc.
  • V2X communication can be regarded as a special case of device to device (D2D) communication.
  • the communication link between different terminal devices may be called a side link (Sidelink, SL).
  • PC5 interface signaling may include: Direct Communication Request/Accept, Link Identifier, Update Request/Response/Ack ), Disconnect Request/Response, Link Modification Request/Accept, etc.
  • V2X is an extension and technical evolution of a scenario based on a sidelink (sidelink) architecture. Since the licensed spectrum occupied by the sidelink needs to be coordinated with the spectrum resources of the LTE/NR network, the usage scenarios may be limited and the rate cannot be further improved. Unlicensed (Unlicense) spectrum is open and can be used effectively to improve performance and speed. The unlicensed nature of the Unlicense spectrum enables all systems to transmit and compete for resources on it, which is called an unlicensed sidelink (sidelink-unlicense, SL-U) technology.
  • SL-U unlicensed sidelink
  • the SL-U scenario runs in units of groups, which can support local team scenarios.
  • the SL-U scenario may include: a group header (GH) and a group member (GM).
  • GH group header
  • GM group member
  • SL-U has a variety of application scenarios.
  • terminal devices such as mobile phones, TVs, personal computers, tablets, stereos, bracelets, and headphones are added to a group to perform home scenarios through SL-U.
  • Communication In the conference room scenario, terminal devices such as large-screen devices, personal computers, mobile phones, and tablets can be added to a group for communication in conference scenarios through SL-U.
  • terminal devices such as personal computers, tablets, and mobile phones can be added to a group to communicate in the team game scenario through SL-U.
  • FIG. 1 it is a schematic diagram of an SL-U scenario provided by an embodiment of the present application.
  • Can include: GH1, GM1, GM2, GM3.
  • GH1 may be a mobile phone
  • GM1 may be a watch
  • GM2 may be glasses
  • GM3 may be a headset.
  • FIG. 1 may be applied to the aforementioned family scene.
  • FIG. 2 it is a schematic diagram of another SL-U scenario provided by an embodiment of the present application.
  • GH2 can be a large-screen device
  • GM4 can be a mobile phone
  • GM5 can be a tablet
  • GM6 can be a speaker.
  • Figure 2 can be applied to the aforementioned conference scene.
  • running in groups can not only support local teaming scenarios, but also reduce the probability of resource collision.
  • UE User equipment
  • the probability of resource conflict and collision is very high.
  • resource collision events can be greatly reduced.
  • the efficiency of resource allocation can also be improved, resources can be negotiated at a large granularity among groups, and group heads within a group can be allocated uniformly.
  • the communication performance of the side link can be improved, and the group head can measure the channel information, service load, and mutual information of each member in the group, so as to achieve better link control.
  • it can also reduce the delay, reduce the group head or group members, exchange information with the base station, and reduce the air interface delay.
  • the operation of the group mechanism in the above-mentioned SL-U scenario requires a complete set of process mechanisms, in which the key processes and technologies are: the establishment of the group process, the selection of the group head, the mechanism of group maintain, and the inter-group and resource allocation within the group, etc.
  • the current SL-U mechanism does not take into account the enhanced capability of the group head and the fact that the two group members are far apart, failing to reuse the space within the group.
  • the energy measured by the CS currently transmitted by the SL-U includes all the received signal energy that can be measured at the current moment, and cannot distinguish between intra-group interference and out-of-group interference. If the CS fails, the UE will back off, so that the intra-group spatial reuse (intra-group spatial reuse) fails.
  • the present application provides an information transmission method, when the group head has a multi-antenna capability, or the group head has a strong sidelink control information (sidelink control information, SCI) receiving ability, or two group members
  • sidelink control information sidelink control information, SCI
  • the method provided in this embodiment of the present application may be performed by a first device, for example, the first device may be a group member, and the group member may be the aforementioned various terminal devices.
  • the group member can determine the first interference signal strength of the channel used by the group member to send the message, wherein the message sent by the group member can be a data message and/or a control message, and the reference signal is the group member in the group except the group member.
  • the first interference signal strength determined by the group member does not include the second interference signal strength
  • the second interference signal strength is the interference signal strength caused by the second device to the group member
  • the second device has the same group ID as the group member.
  • the first interfering signal strength determined by the group members can represent the inter-group interfering signal strength, while excluding the received energy caused by the intra-group transmission.
  • Whether the channel is idle or not determined by the first interference signal strength can indicate the real channel idle state, and group members can perform intra-group spatial reuse (intra-group spatial reuse) when the channel is idle to improve network capacity and resource efficiency.
  • the information transmission method provided in this embodiment of the present application may also be performed by a group header, and the specific manner is similar to the above, and will not be repeated here.
  • the following is still an example of the group member performing the above information transmission method.
  • FIG. 3 it is a schematic diagram of a mobile communication system according to an embodiment of the present application.
  • the mobile communication system 100 may include at least one group head 110 and at least one group member (such as group members 120, 130, 140, 150, 160 as shown in Figure 3).
  • the group members 130 , 150 , and 160 may be remote group members, and the group member 130 communicates with the group head 110 through the group member 120 .
  • the group member 140 or the group member 160 communicates with the group head 110 through the group member 140 .
  • At least one group member can send uplink data or information to the group head 110, and the group head 110 can also send downlink data or information to at least one group member.
  • a plurality of group members can also form a communication system.
  • the group members 140, 150, and 160 can form a communication system, and the group member 140 can also send downlink data or information to the group members 150 and 160.
  • the group members 150 and 160 160 may also send uplink data or information to group members 140 .
  • the at least one group head 110 shown in FIG. 3 and at least one group member shown in FIG. 3 may specifically be embodiments of the present application.
  • the first device and the second device described later in, for example, the group head 110 may be the first device, and the group member 120 may be the second device.
  • group member 130 may be the first device and group member 150 may be the second device.
  • group member 160 may be the second device and group head 110 may be the first device. There is no limitation here.
  • the process of establishing a communication connection between the first device and the second device is briefly described below. After the first device and the second device establish a communication connection, the first device can transmit data or control signaling between the second device and the network device.
  • the user When the first device needs to form a group, for example, when the user uses the first device, the user needs to use the first device and other devices to form a group, as shown in Figure a in Figure 4, the user can click on the first device
  • the "Settings” menu on the interface displays the interface as shown in Figure b in Figure 4, displaying the "Search Group Devices” menu.
  • the "hunting group device” indicates the desire to communicate with the network device through other devices.
  • the search group device As shown in Figure c in FIG. 4 , information of other devices that can be used as group devices can be displayed to the user on the interface of the first device.
  • the first device can search for other devices through existing communication technologies such as wireless network communication protocols, and display information about other devices that can be used as group devices of the first device to the user, and the other devices can be the second device, mobile phone 2. Tablet PC, etc.
  • the user can click on one of the other devices that can be connected. After the user clicks on the device (for example, the second device), it means that the first device determines to transmit data and/or control signaling between the second device and the network device. . That is, the second device will act as a group device of the first device.
  • the identifiers, serial numbers or models of other devices may be displayed.
  • the serial number may be a network access license number or the like.
  • FIG. 5 is a schematic diagram of the main interface displayed by the first device, the user clicks “Settings”, and the user opens the “Connect Group Device” as shown in Figure b in Figure 5.
  • “device” means that the user needs to connect the group device and transmit data and/or control signaling between the group device and the network device. After the user clicks "connect group device", the first device can automatically search for or connect to other devices available nearby.
  • the first device can display to the user "The group device has been connected. ” to notify the user that a group device has been connected. In this way, the user's non-aware connection group device can be implemented, and the user experience can be improved.
  • the user of the second device can also be displayed “whether as the first device or not. device's group members" prompt.
  • the user of the second device clicks “OK”, which means that it is allowed to be a group member of the first device. If they do not agree, the user can click "Cancel", and the first device cannot take the second device as a group member.
  • the application scenario shown in FIG. 6 may be a vehicle formation scenario, and the first device and the second device may be vehicle terminals in the vehicle formation scenario.
  • the first device may be a smart wearable device used by a user, such as a smart watch, a smart bracelet, etc.
  • the second device may be: a mobile phone, a portable computer, a Netbooks, PDAs and other devices.
  • prompt information of "whether it is a group device of the first device" may be displayed to the user.
  • the first device may use: wireless local area networks (wireless local area networks, WLAN) (such as wireless fidelity (wireless fidelity, Wi-Fi) network), Bluetooth (bluetooth, BT), Frequency modulation (FM), near field communication (NFC), infrared technology (infrared, IR) and other wireless communication technologies search for other devices that can be used as group devices.
  • wireless local area networks wireless local area networks, WLAN
  • WLAN wireless local area networks
  • WLAN wireless local area networks
  • WLAN such as wireless fidelity (wireless fidelity, Wi-Fi) network
  • Bluetooth bluetooth, BT
  • NFC near field communication
  • infrared technology infrared, IR
  • other wireless communication technologies search for other devices that can be used as group devices.
  • WLAN wireless local area networks
  • WLAN such as wireless fidelity (wireless fidelity, Wi-Fi) network
  • Bluetooth blue, BT
  • FM Frequency modulation
  • NFC near field communication
  • infrared technology infrared
  • the first device may also automatically recommend other devices that can be used as group devices to the user according to previous connections with other devices. For example, if the first device finds after searching that other devices that can be connected to the first device and that can be used as group devices are the same as the last time the user used the group device, then automatically connect to the same group device as the last time, that is, to realize automatic connect.
  • the DU structure includes a downlink (uplink, U for short) time unit and an uplink (downlink, D for short) time unit, wherein an interval ( Gap).
  • the communication system includes: GH, GM1 and GM2. Among them, the uplink (UL) service of GM1 already exists, and GM2 joins it halfway.
  • GM1 is performing sidelink-uplink (S-UL) transmission with GH.
  • S-UL sidelink-uplink
  • GM1 may perform S-UL transmission based on scheduling or radio resource control (RRC) configuration, and the transmission spans multiple times unit (slot).
  • RRC radio resource control
  • GM2 needs to perform S-UL transmission.
  • the middle block on the left side of the U slot represents SCI
  • the right side of the U slot represents the last slot
  • the middle block on the right side of the U slot represents the channel state information interference measurement (channel state information-interference measurement). measurement, CSI-IM) pilot.
  • CS carrier sensing
  • GM1 and GM2 initiate uplink (UL) services at the same time immediately after the downlink time unit (eg D slot), and GM1 and GM2 simultaneously perform S-UL transmission with GH.
  • the moment when the service is initiated is the first U slot after the D slot.
  • the service can be initiated based on GH scheduling or RRC configuration.
  • the D-U structure includes a downlink (uplink, U for short) time unit and an uplink (downlink, D for short) time unit, wherein a gap (Gap) is set between the D time unit and the U time unit.
  • a gap is set between the D time unit and the U time unit.
  • the middle square on the left side of the D slot represents the SCI
  • the right side of the D slot represents the last slot
  • the middle square on the right side of the D slot represents the CSI-IM pilot.
  • the CS needs to be performed before GM1 and GM2 send data.
  • the CS regards the signal energy of the D slot as interference.
  • the UE CS will fail and back off, which may lead to the failure to enable the Intra-group Spatial Reuse.
  • GM1 and GM2 do not regard the signal of the GH in the group as interference, that is, do not regard the power of the GH signal as interference, so the CS failure of GM1 and GM2 can be avoided, so that Intra-group Spatial Reuse can be enabled .
  • the first device may determine the inter-group interference signal strength in a direct or indirect manner, so that the first device may determine the idle state of the channel according to the inter-group interference signal strength.
  • the direct method means that the first device can obtain the inter-group interference signal strength through direct measurement
  • the indirect method means that the first device first obtains the total energy of the channel and the received power of the reference signal on the channel, and finally obtains the total energy of the channel and the received power of the reference signal through the channel.
  • the received power between the groups is calculated to calculate the inter-group interference signal strength.
  • the strength of the inter-group interference signal can be used to determine whether the channel is idle.
  • the idle channel specifically refers to the idle channel between the groups, and then the idle channel between the groups can be used for data transmission to improve network capacity and resource efficiency.
  • the method of directly determining the inter-group interference signal strength is described in detail.
  • the first device can measure the interference signal, and the second device can send a non-zero power signal.
  • the non-zero power signal may be sent by the group head, or may be sent by other group members, which is not limited here.
  • the second device configures a first time-frequency resource, where the first time-frequency resource is configuration information of an IM reference signal for interference measurement; the IM reference signal is used to measure the interference situation of the channel;
  • the second device generates a non-zero power signal, and sends the non-zero power signal to the first device; the time-frequency resources of the non-zero power signal and the time-frequency resources of the IM reference signal do not overlap;
  • the first device measures the interference information on the first time resource, and determines the strength of the first interference information, where the first time resource is the first n sub-time units before the time when the first device sends the data message or the control message, and the value of n is less than or equal to N/2, N is the number of sub-time units in the time unit in which the first device sends data messages or control messages, and N is a positive integer; the first interference information strength does not include the second interference information strength, and the second The interference information intensity is the interference caused by the second device to the first device, and the second device is a device with the same group identifier as the first device;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • the first device performs interference measurement on a first time-frequency resource to determine interference information, where the first time-frequency resource is determined according to configuration information of an interference measurement (interference measurement, IM) reference signal , the IM reference signal is used to measure the interference of the channel, the time-frequency resource of the IM reference signal does not overlap with the time-frequency resource of the non-zero power signal, the non-zero power signal is sent by the second device, and the second device has the same Devices with the same group identification; the first device determines whether the channel is in an idle state according to the interference information.
  • IM interference measurement
  • the time-frequency resources of the IM reference signal do not overlap with the time-frequency resources of the non-zero power signal, and the IM reference signal can be used to determine the first time-frequency resource, and the first device performs the first time-frequency resource on the first time-frequency resource.
  • interference measurement so as to determine the interference information.
  • the interference information is the inter-group interference between the groups where the first device and the second device belong, and the interference information can be used to determine whether the channel is in an idle state. Therefore, in this embodiment of the present application, the first device may Determine whether the channel is idle.
  • the first device may be a group member or a group head.
  • the time-frequency resources here may also be time-frequency code resources, which are not limited here.
  • the second device can send the first reference signal
  • the first device can obtain the received power in the time unit where the first reference signal is located, and measure the time when the first reference signal is located The total channel energy in the last M sub-time units of the unit.
  • the second device sends the first reference signal to the first device
  • the first device receives the first reference signal from the second device, and measures the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, where M is a positive integer;
  • the first device obtains the received power of the first reference signal in the time unit
  • the first device determines the first interference signal strength according to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the received power of the first reference signal in the time unit;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • the first device receives the first reference signal from the second device, and measures the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, where M is a positive integer
  • the first device obtains the received power of the first reference signal in the time unit; the first device is based on the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the reception of the first reference signal in the time unit
  • the power determines the strength of the first interference signal; the first device determines whether the channel is in an idle state according to the strength of the first interference signal.
  • the first device obtains the total energy of the channel in the last M sub-time units of the time unit where the first reference signal is located, and the total energy is the total energy received by the first device on the channel; the first device obtains The received power of the first reference signal, the received power is the effective power of the first reference signal on the channel, so the first interference signal strength can be determined by the above-mentioned total energy and the above-mentioned received power, and the first interference signal strength is the first interference signal strength.
  • Inter-group interference between a device and a group in which the second device is located the first interference signal strength can be used to determine whether the channel is in an idle state. Therefore, in this embodiment of the present application, the first device can determine whether the channel is idle.
  • the above-mentioned first device may be a group head, and the second device may be a group member. Or the first device may be a group member and the second device may be the group head.
  • the group in order to make better use of the group, when the group head has the multi-antenna capability, or the group head has a strong SIC receiver capability, or the physical distance between the two group members is far apart, the group can be enabled. Intra-group Spatial Reuse to improve network capacity and resource efficiency.
  • the following describes the information transmission method provided by the present application in detail with reference to FIG. 8 .
  • the method can be applied to the scenarios shown in FIGS. 1 to 7 a and 7 b , and the embodiment of the present application is not limited herein.
  • the first device and the second device are used as examples for executing the methods of executing the methods of the respective embodiments to describe the methods of the respective embodiments.
  • the execution subject of the method may also be a chip applied in the first device and the second device.
  • the communication system includes a first device and a second device.
  • the second device is a device with the same group identifier as the first device.
  • the method shown in 8 is a solution in which the first device directly performs interference measurement to obtain interference information.
  • the method includes steps 801 to 804 .
  • the CSI-IM pattern within a group is configured by the group header.
  • the CSI-IM patterns in the same group are the same, and the CSI-IM patterns in different groups are different.
  • the second device and the first device are in the same group, and both the first device and the second device may be members of the group, or one may be the head of the group and the other may be a member of the group.
  • the second device is used as a group head and the first device is used as a group member for illustration.
  • the CSI-IM may be an IM reference signal in the embodiments of the present application, and the time-frequency resources of the IM reference signal are group specific (group specific), that is, the same
  • group specific group specific
  • the time-frequency resource patterns configured by the IM reference signals within a group are the same, and the time-frequency resource patterns configured for the IM reference signals in different groups are different.
  • the first device can determine which group the IM reference signal corresponds to according to the time-frequency resource corresponding to the received IM reference signal.
  • the time-frequency resources here may also be time-frequency code resources.
  • the first device acquires the configuration information of the CSI-IM.
  • the first device may acquire the CSI pattern configured by the group header, for example, the first device may acquire the CSI pattern configured by the second device from the second device. Therefore, the first device can obtain the configuration information of the CSI-IM through the CSI pattern.
  • CSI-IM may be an IM reference signal in this embodiment of the present application.
  • the first device can obtain the configuration information of the IM reference signal, the time-frequency resources of the IM reference signal and the time-frequency resources of the non-zero power signal do not overlap, or the time-frequency code resources of the IM reference signal and the time-frequency code of the non-zero power signal Resources do not overlap.
  • the non-zero power signal is sent by the second device, and the non-zero power signal refers to a signal whose transmission power is not zero.
  • the second device and the first device are in the same group, and due to service requirements, the second device sends the non-zero power signal to other devices in the group where the second device is located.
  • the second device may send the non-zero power signal by broadcasting.
  • the second device may also send the non-zero power signal to the first device. Therefore, the non-zero power signal sent by the second device is not an inter-group interference signal for the first device, but the effective received energy in the group where the first device is located.
  • the first device only needs to measure the inter-group interference on the CSI-IM, and the intra-group interference may be caused by the group leader or other group members in the group where the first device is located. Therefore, the first device may first obtain the configuration information of the CSI-IM, and then measure the inter-group interference according to the CSI-IM.
  • the interference measurement IM reference signal configured by the second device for the first device is determined according to the group identifier of the second device.
  • the second device configures the above-mentioned IM reference signal according to the group identifier of the second device, the first device and the second device have the same group identifier, and the first device configures the IM reference signal according to the group identifier of the second device.
  • the group identifier to which it belongs can identify the IM reference signal corresponding to the group, so that the first device can identify the IM reference signal corresponding to different group identifiers.
  • the first device performs interference measurement on the first time-frequency resource to determine interference information.
  • the first time-frequency resource is determined according to the configuration information of the IM reference signal for interference measurement, and the IM reference signal is used to measure the interference of the channel; the time-frequency resource of the IM reference signal does not overlap with the time-frequency resource of the non-zero power signal.
  • the first device determines the first time-frequency resource according to the configuration information of the IM reference signal, and the first device may perform interference measurement on the first time-frequency resource to determine interference information, and the interference information may specifically be an inter-group interference signal strength.
  • the second device and the first device are in the same group, the first device and the second device may be members of the group, and the first device may measure the interference of the channel according to the IM reference signal. If there is a service requirement, the second device can send a non-zero power signal.
  • the non-zero power signal refers to a signal whose transmit power is not zero.
  • the first device can obtain the configuration information of the IM reference signal and the time-frequency resources of the IM reference signal. Non-overlapping with the time-frequency resource of the non-zero power signal, the non-overlapping here may mean that the time-frequency resource pattern of the IM reference signal is different from the time-frequency resource pattern of the non-zero power signal.
  • the IM reference signal is determined according to the group identifier of the second device. That is, different group identifiers correspond to different IM reference signals, the second device configures the above-mentioned IM reference signal according to the group identifier of the second device, the first device and the second device have the same group identifier, and the first device configures the IM reference signal according to the group identifier of the second device.
  • the group identifier to which it belongs can identify the IM reference signal corresponding to the group, so that the first device can identify the IM reference signal corresponding to different group identifiers.
  • the IM reference signal is a zero-power reference signal.
  • the IM reference signal is a zero power reference signal.
  • the energy measured by the first device on the first time-frequency resource is the interference information, that is, the interference signal measured on the first time-frequency resource is the inter-group interference strength, and the inter-group interference strength can be called inter-group interference and inter-group/system interference.
  • the IM reference signal may specifically be a channel state information reference signal (channel state information reference signal, CSI-RS), that is, the IM reference signal may be expressed as "CSI-RS IM", Since the CSI-RS IM has zero power, the energy measured by the first device on the corresponding time-frequency resource is the inter-group signal interference strength.
  • CSI-RS channel state information reference signal
  • the first time-frequency resource includes only the last n sub-time units in the time unit where the IM reference signal is located in the time domain, and the value of n is less than or equal to N/2, and N is The number of sub-time units in the time unit, and the value of N is a positive integer.
  • the embodiments of the present application may be used to adapt to enhanced listen before talk (e-LBT) or listen before talk (listen before talk, LBT) scenarios, for example, e-LBT enhances group scenarios Under the resource utilization rate, the use of spatial multiplexing to improve efficiency.
  • the first time-frequency resource may only include the last n sub-time units in the time unit where the IM reference signal is located in the time domain, that is, the IM reference signal is not transmitted on the first (N-n) sub-time units of the time unit.
  • a time unit may be a slot
  • a sub-time unit may be a symbol.
  • the implementation manner of the time unit and the sub-time unit is not limited to the above examples, as long as the time unit is larger than the sub-time unit, it is applicable.
  • the first time-frequency resource only includes the last sub-time unit in the time unit where the IM reference signal is located in the time domain, that is, the value of n may be 1, and the value of n is not limited in this embodiment of the present application.
  • the implementation of the first time-frequency resource may be as shown in any of the following illustrations in FIGS. 12a to 12c , such as FIGS. 12a to 12c , which schematically illustrate three possible time-frequency resource patterns, such as FIGS. 12a to 12c .
  • FIGS. 12a to 12c schematically illustrate three possible time-frequency resource patterns, such as FIGS. 12a to 12c .
  • all the grids in each figure represent a physical resource block (PRB), which contains 14 symbols (symbols) and 12 resource elements (resource elements, RE), that is, 14 columns and 12 rows .
  • An optional time-frequency resource pattern, the time domain position is the last symbol, and the frequency domain of a possible pattern is 4 REs, which can be distributed in upper, middle, and lower positions.
  • the IM reference signal is a channel state information reference signal (channel state information reference signal, CSI-RS).
  • the CSI-RS is a zero power (zero power) signal, that is, the transmission power is 0 at the corresponding time-frequency position. It is not limited that the IM reference signal provided in this embodiment of the present application may also be other signals, which are not limited here.
  • the first device determines the interference information, including:
  • the first device determines the interference information according to the following methods:
  • P 1 represents the interference power measured by the first device on the first time-frequency resource
  • P 2 represents the interference information
  • M 2 is the measurement bandwidth in the channel competition mechanism
  • M 1 is the bandwidth occupied by the IM reference signal
  • M 1 is the bandwidth occupied by the IM reference signal, that is, the first device can obtain the bandwidth occupied by the IM reference signal according to the configuration information of the IM reference signal.
  • M 2 is the measurement bandwidth in the channel contention mechanism, and the measurement bandwidth in the channel contention mechanism is a predetermined bandwidth.
  • the measurement bandwidth in the channel contention mechanism may be the measurement bandwidth defined by the LBT. It can be understood that the bandwidth in this embodiment of the present application may also be expressed as the number of resource elements (REs), the size of frequency domain resources, etc., which are not limited here.
  • M 1 may be the number of REs occupied by the IM reference signal, and M 2 may define the number of REs corresponding to the measurement bandwidth for the LBT.
  • M 1 may be the frequency resource occupied by the IM reference signal, and M 2 may be the frequency resource occupied by the LBT measurement bandwidth.
  • the interference power P 1 measured by the first device on the first time-frequency resource is converted according to the above formula to obtain the interference information P 2 , and the final interference information can be obtained by the above formula.
  • the interference information can determine whether the channel is idle.
  • the first device determines whether the channel is in an idle state according to the interference information.
  • the first device may determine the inter-group interference signal strength of the first device, so that the first device may determine whether the channel is in an idle state, where the channel is in an idle state Status has the same meaning as channel idle.
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • the first device may perform intra-group space reuse on the channel to improve resource utilization.
  • the channel is not idle, the first device cannot perform intra-group spatial multiplexing on the channel.
  • the channel idle specifically refers to the idle channel between the groups, and then the idle channel between the groups can be used for data transmission, so as to improve the network capacity and resource efficiency.
  • the following describes the information transmission method provided by the present application in detail with reference to FIG. 9 .
  • the method can be applied to the scenarios shown in FIGS. 1 to 7 a and 7 b , and the embodiment of the present application is not limited herein.
  • the first device and the second device are used as examples for executing the methods of executing the methods of the respective embodiments to describe the methods of the respective embodiments.
  • the execution subject of the method may also be a chip applied in the first device and the second device.
  • the information transmission methods provided by some embodiments of the present application are applied to a communication system.
  • the communication system includes a first device and a second device, and the second device is a device with the same group identifier as the first device.
  • the solution shown in 9 is a solution in which the first device obtains the signal interference strength between groups through indirect measurement, and the method includes steps 901 to 904 .
  • the second device sends a first reference signal to the first device.
  • the second device and the first device belong to the same group, and the first device and the second device may both be group members, or one may be a group head and the other may be a group member.
  • the second device may send the first reference signal in the group by broadcasting, and the first device receives the first reference signal and determines whether the channel is idle by using the first reference signal.
  • the first device may send the first reference signal in the group by broadcasting, and the first device receives the first reference signal and determines whether the channel is idle by using the first reference signal.
  • the second device may broadcast sidelink control information (SCI), where the SCI carries the aforementioned configuration information of the first reference signal, for example, the SCI carries the first reference signal.
  • SCI sidelink control information
  • the first device can receive the SCI, and determine the time-frequency resource pattern of the first reference signal through the SCI, and then receive the first reference signal sent by the second device.
  • the first reference signal is a demodulation reference signal (demodulation reference signal, DMRS). It is not limited that the first reference signal provided in this embodiment of the present application may also be other signals, as long as the first device can measure the first reference signal, which is not limited here.
  • DMRS demodulation reference signal
  • the first reference signal can be sent in multiple ways.
  • the first reference signal may be carried on a physical sidelink share channel (PSSCH), or the physical side Uplink control channel (physical sidelink control channel, PSCCH).
  • PSSCH physical sidelink share channel
  • PSCCH physical sidelink control channel
  • the first device receives the first reference signal from the second device, and measures the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, where M is a positive integer.
  • the first device and the second device belong to the same group, and both the first device and the second device may be group members, or one may be a group leader and the other may be a group member.
  • the second device may send the first reference signal, and the first device receives the first reference signal.
  • the first device when receiving the first reference signal, the first device needs to measure the total channel energy in the last M sub-time units of the time unit where the first reference signal is located. The total energy received by a device.
  • the time unit is a slot
  • the sub-time unit may be a symbol.
  • the implementation manner of the time unit and the sub-time unit is not limited to the above examples, as long as the time unit is larger than the sub-time unit, it is applicable.
  • the value of M may be 1. It is not limited in this embodiment of the present application that the value of M may be other values, such as the value of M. The value is 2.
  • the first device measures the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, and the total energy may specifically be the reference signal strength measured by the first device. indicate, RSSI). It is not limited that, after the first device in this embodiment of the present application measures the aforementioned total energy, the first device may further normalize the total energy, for example, the total energy may be normalized to each resource. unit (resource element, RE).
  • RE resource element
  • the first device acquires the received power of the first reference signal in a time unit.
  • the first device when the first device receives the first reference signal, the first device may also obtain the received power of the first reference signal within a time unit, for example, the received power may be reference signal received power (reference signal receive power, RSRP) .
  • the received power of the first reference signal in the time unit is the effective received energy of the group where the first device is located.
  • the first device obtains the received power of the first reference signal in the time unit, including:
  • the first device determines the frequency resource corresponding to the time unit where the first reference signal is located;
  • the first device performs reference signal measurement on the frequency resource corresponding to the time unit where the first reference signal is located, so as to obtain the received power of the first reference signal within the time unit.
  • the first device can obtain the frequency resource corresponding to the time unit where the first reference signal is located by using the configuration information of the first reference signal, and then the first device performs reference signal measurement on the frequency resource corresponding to the time unit where the first reference signal is located.
  • the measurement result obtains the received power of the first reference signal in the time unit.
  • the embodiment of the present application does not provide a detailed process.
  • the first device determines the strength of the first interference signal according to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the received power of the first reference signal in the time unit.
  • the first device determines the total energy of the channel in the last M sub-time units of the time unit where the first reference signal is located through the foregoing step 902. Based on the foregoing analysis, it can be known that the total energy is the channel carrying the first reference signal. total energy.
  • the received power of the first reference signal in the time unit is determined by the aforementioned step 903. Based on the foregoing analysis, it can be known that the received power is the effective received energy in the group where the first device is located. Therefore, the strength of the first interference signal can be determined by using both, The first interference signal strength is the inter-group interference signal strength of the group where the first device is located.
  • the first device determines the first reference signal according to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the received power of the first reference signal in the time unit.
  • - Interfering signal strength including:
  • the first device determines that the strength of the first interference signal is equal to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, minus the received power of the first reference signal in the time unit; or,
  • the first device determines that the strength of the first interference signal is equal to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located.
  • the frequency resources of the group in which the first device is located can be divided into two types: one is frequency resources with data transmission in the group, and the other is frequency resources with or without data transmission in the group.
  • the first interference signal strength can be obtained by performing a subtraction operation between the aforementioned total energy and the received power.
  • the total energy of the channel received by the first device is the first interference signal strength.
  • the first interference signal strength can be determined by considering whether there is a frequency resource for data transmission in the group.
  • the information transmission method provided by the embodiments of the present application further includes:
  • the first device adjusts the strength of the first interference signal according to the power correspondence between the reference signal and the data signal, and obtains the adjusted strength of the first interference signal.
  • the strength of the first interference signal determined by the first device is obtained by the total energy of the last M sub-time units where the first reference signal is located, and the received power corresponding to the first reference signal.
  • the power of the reference signal can be aligned with the power of the data signal, and the corresponding relationship between the power of the reference signal and the data signal can be obtained, for example The corresponding relationship may be a proportional relationship between the reference signal and the data signal, and the proportional relationship may be obtained through configuration information.
  • the first interference signal strength is adjusted according to the power correspondence between the reference signal and the data signal, so that the obtained adjusted first interference signal strength can represent a more real channel environment interference situation.
  • the first device determines whether the channel is in an idle state according to the strength of the first interference signal.
  • the first device may determine the strength of the inter-group interference signal of the first device, whereby the first device may determine whether the channel is in an idle state, wherein, The channel being in the idle state has the same meaning as the channel being idle. Further, if the channel is in an idle state, the first device may perform intra-group space reuse on the channel to improve resource utilization. On the contrary, if the channel is not idle, the first device cannot perform intra-group spatial multiplexing on the channel.
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • the first device may perform intra-group space reuse on the channel to improve resource utilization.
  • the channel is not idle, the first device cannot perform intra-group spatial multiplexing on the channel.
  • the channel idle specifically refers to the idle channel between the groups, and then the idle channel between the groups can be used for data transmission, so as to improve the network capacity and resource efficiency.
  • the first device determines whether the channel is in an idle state according to the strength of the first interference signal, including:
  • the first device determines whether the channel is in an idle state according to the adjusted strength of the first interference signal.
  • the first device can adjust the strength of the first interference signal according to the power correspondence between the reference signal and the data signal, so that the obtained adjusted strength of the first interference signal can represent a more real channel environment interference situation.
  • the adjusted first interference signal strength determines whether the channel is in an idle state, so that it can be more accurately determined whether the channel is idle.
  • the first device determines whether the channel is in an idle state according to the first interference signal strength, including:
  • the first device converts the first interference signal strength into inter-group interference power in the following manner:
  • P 1 represents the strength of the first interference signal
  • P 2 represents the inter-group interference power
  • M 2 is the measurement bandwidth in the channel competition mechanism
  • M 1 is the bandwidth occupied by the first reference signal
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • M 1 is the bandwidth occupied by the IM reference signal, that is, the first device can obtain the bandwidth occupied by the IM reference signal according to the configuration information of the IM reference signal.
  • M 2 is the measurement bandwidth in the channel contention mechanism, and the measurement bandwidth in the channel contention mechanism is a predetermined bandwidth.
  • the measurement bandwidth in the channel contention mechanism may be the measurement bandwidth defined by the LBT.
  • M 1 may be the number of REs occupied by the IM reference signal, and M 2 may define the number of REs corresponding to the measurement bandwidth for the LBT.
  • M 1 may be the frequency resource occupied by the IM reference signal, and M 2 may be the frequency resource occupied by the LBT measurement bandwidth.
  • the interference power P 1 measured by the first device on the first time-frequency resource is converted according to the above formula to obtain the interference information P 2 , and the interference information can be generated by the above formula, and based on the interference information It can be judged whether the channel is idle.
  • the embodiments of the present application can be applied to enhanced LBT scenarios.
  • the terminal device excludes the received energy generated by intra-group transmission during carrier sensing (CS), and only calculates the inter-group interference strength (and inter-system interference strength), that is, the inter-group interference strength is calculated. (and inter-system) (inter-group/system) interference strength.
  • the obtained inter-group interference strength is used as the LBT threshold comparison value to enable intra-group spatial multiplexing and improve resource utilization.
  • the calculation of the inter-group interference strength can be considered from the following multiple implementations.
  • Another method is to indirectly calculate the inter-group interference strength (and inter-system interference strength), as detailed in the subsequent embodiments 2 and 3. That is, by obtaining the total channel energy and the effective energy in the group, both By subtraction, the inter-group interference strength (or inter-system interference strength) can be obtained.
  • FIG. 10 is a schematic diagram of a scenario in which a UE performs side link communication according to the embodiments of the present application.
  • a user equipment UE
  • FIG. 11 is a schematic diagram of a scenario in which a group mechanism is used in side link communication provided by an embodiment of the present application, and multiple UEs also use a group (group) form to enhance communication efficiency.
  • the group head can act as a part of the base station to coordinate the management of the entire group.
  • the UE is a device with transmission capability, for example, the UE may be a terminal device, such as a mobile phone, a computer, a wristband, a smart watch, a data card, a sensor, and other devices.
  • the UE serving as the group head is also an implementation of the UE in terms of product form, but the UE serving as the group head has the capabilities of some base stations, has central control functions, and can configure resources and receive data.
  • the method for supporting the measurement of the inter-group interference strength is to directly measure and obtain the interference, and the specific process is described as follows.
  • the signal energy measured by the UE on the pattern corresponding to the CSI-RS IM is the inter-group interference strength (and inter-system interference strength) .
  • the first device obtains the first time-frequency resource of the IM reference signal. Since the power of the IM reference signal is zero, the total power is measured on the first time-frequency resource, and the total power is the inter-group interference (and the system inter-interference), denoted as P 1 .
  • the pattern of time-frequency resources of CSI-RS IM is group specific.
  • An optional method includes: the configuration of time-frequency resource patterns within a group is consistent, and the CSI-RS IM time-frequency resource patterns of different groups are staggered.
  • the pattern of the time-frequency resources as a whole follows the pattern of the time-frequency resources of the existing CSI-RS IM in the new radio (new radio, NR) system, and is adapted to the application scenario of e-LBT.
  • the time domain resource may be located in the last symbol of each time slot.
  • the pattern of CSI-RS IM time-frequency resources is the same as the current CSI-RS IM pattern 1 of NR.
  • Figures 12a to 12c schematically illustrate three possible time-frequency resource patterns.
  • all the grids in each figure represent a physical resource block (PRB), where Contains 14 symbols and 12 REs, that is, 14 columns and 12 rows.
  • PRB physical resource block
  • the time domain position is the last symbol
  • the frequency domain of a possible pattern is 4 REs, which can be distributed in three positions: upper, middle, and lower.
  • Symbol is the time unit and RE is the frequency domain unit.
  • the frequency domain bandwidth of the time-frequency resource pattern has multiple implementation manners.
  • the frequency domain bandwidth of the time-frequency resource pattern may be all bandwidths supported by the GH and GM.
  • the frequency domain bandwidth of the time-frequency resource pattern may be the bandwidth of a UE-specific subchannel (specific subchannel), or the frequency domain bandwidth of the time-frequency resource pattern may be the bandwidth of a group-specific subchannel.
  • the conversion process between P 1 and the LBT threshold P 2 is as follows:
  • the LBT threshold in the current protocol is all based on the LBT bandwidth (eg 20M), M2 is the spectrum resource occupied by the measurement bandwidth defined by the LBT, and M1 is the spectrum resource occupied by the actual CSI-IM measurement bandwidth.
  • M 1 may be the number of REs occupied by the IM reference signal, and M 2 may define the number of REs corresponding to the measurement bandwidth for the LBT.
  • M 1 may be the frequency resource occupied by the IM reference signal, and M 2 may be the frequency resource occupied by the LBT measurement bandwidth.
  • the method for supporting the measurement of the inter-group interference strength (and the inter-system interference strength) is to obtain the interference indirectly, and the specific process is described as follows.
  • Decode the SCI in the group, and measure the RSRP of the DMRS of the PSSCH in the group.
  • the SCI can be demodulated to obtain the position of the DMRS
  • the channel information H can be obtained by estimating the channel of the DMRS
  • the modulo square of H can be obtained, thereby obtaining the RSRP.
  • the inter-group interference strength (and inter-system interference strength) is obtained by subtracting the effective energy in the group, where the effective energy in the group refers to the DMRS RSRP in the group.
  • the SCI is broadcast in the group, and any UE can detect the SCI. If the SCI of this group cannot be detected, it means that the interference between groups is very serious.
  • the calculation method is as follows. On the frequency band with intra-group data transmission, the RSRP of the DMRS is measured according to the PSSCH DMRS pattern indicated in the SCI. If the PSSCH has multiple DMRS symbols, the multiple symbols can be linearly averaged; RSRP is normalized to each RE. For example, there are 12 REs in one RB. The number of RBs for one data scheduling is determined according to the service. For example, the number of RBs may be one or multiple, which is not limited here.
  • the transmission power of the DMRS may be inconsistent with the transmission power of the data (Data).
  • the power of the DMRS needs to be aligned with the Data power. To ensure that the measured signal energy represents the energy of the data.
  • SumDmrsRsrp is 0, and the measured RSSI is the inter-group or inter-system inter-group interference strength (and inter-system interference strength); normalized to each RE.
  • the total energy RSSI is measured at the last symbol of the slot, normalized to each RE. In order to perform LBT, it can be defined that the total energy needs to be measured in the last slot.
  • the SumDmrsRsrp is the sum of the RSRPs of all DMRS ports (Ports) in the group.
  • RSSI is the measured total channel energy, including the effective energy within the group and the total energy of inter-group/inter-system interference.
  • a UE may be configured with multiple DMRSs.
  • column 2 in FIG. 13 indicates that the measurement is performed on two ports.
  • DMRS Figure 13 shows three sets of orthogonal DMRS Ports.
  • the conversion process between P 1 and the LBT threshold P 2 is as follows:
  • the LBT threshold in the current protocol is all based on the LBT bandwidth (eg 20M), M 2 is the spectrum resource occupied by the measurement bandwidth defined by the LBT, and M 1 is the spectrum resource occupied by the actual measurement bandwidth of the CSI-IM.
  • M 1 may be the number of REs occupied by the IM reference signal, and M 2 may define the number of REs corresponding to the measurement bandwidth for the LBT.
  • M 1 may be the frequency resource occupied by the IM reference signal, and M 2 may be the frequency resource occupied by the LBT measurement bandwidth.
  • the method for supporting the measurement of the inter-group interference strength is to obtain the interference indirectly, and the specific process is described as follows.
  • the difference between the third embodiment and the second embodiment is that the second embodiment is to measure the DMRS RSRP of the PSSCH in the group, but the third embodiment is to measure the DMRS RSRP of the PSCCH in the group.
  • the SCI is broadcast in the group, and any UE can detect the SCI. If the SCI of this group cannot be detected, it means that the interference between groups is very serious.
  • the calculation method is as follows. On the frequency band with intra-group data transmission, linear average is performed on multiple symbols according to the PSCCH DMRS RSRP obtained by detecting the SCI; the RSRP is normalized to each RE. The power of the PSCCH DMRS needs to be aligned to the PSSCH to ensure that the measured signal energy represents the energy of the PSSCH.
  • SumDmrsRsrp is 0, and the measured RSSI is the inter-group interference strength (or inter-system interference strength); it is normalized to each RE.
  • the total energy RSSI is measured at the last symbol of the slot, normalized to each RE.
  • the SumDmrsRsrp is the sum of the RSRPs of all DMRS ports (Ports) in the group.
  • RSSI is the measured total channel energy, including the effective energy within the group and the total energy of inter-group/inter-system interference.
  • FIG. 14 is a schematic diagram of an application scenario for calculating inter-group interference signal strength provided by an embodiment of the present application
  • the dark squares pointed to by the three arrows are DMRSs of PSCCH
  • the light-colored squares represent PSCCH.
  • the conversion process between P 1 and the LBT threshold P 2 is as follows:
  • the LBT threshold in the current protocol is all based on the LBT bandwidth (eg 20M), M 2 is the spectrum resource occupied by the measurement bandwidth defined by the LBT, and M 1 is the spectrum resource occupied by the actual measurement bandwidth of the CSI-IM.
  • M 1 may be the number of REs occupied by the IM reference signal, and M 2 may define the number of REs corresponding to the measurement bandwidth for the LBT.
  • M 1 may be the frequency resource occupied by the IM reference signal, and M 2 may be the frequency resource occupied by the LBT measurement bandwidth.
  • the LBT method is enhanced.
  • the interference caused by intra-group energy is excluded, and only the inter-group interference strength (or inter-system interference strength) is calculated, using As the LBT threshold comparison value.
  • a first device 1500 provided in an embodiment of the present application includes:
  • the determining module 1501 is configured to perform interference measurement on a first time-frequency resource to determine interference information, wherein the first time-frequency resource is determined according to the configuration information of an IM reference signal for interference measurement, and the IM reference signal is determined by In order to measure the interference of the channel; the time-frequency resources of the IM reference signal do not overlap with the time-frequency resources of the non-zero power signal, and the non-zero power signal is sent by the second device, and the second device is the same as the second device.
  • the judgment module 1502 is configured to judge that the channel is in a non-idle state when the interference information is greater than a preset threshold; and judge that the channel is in an idle state when the interference information is less than or equal to the threshold.
  • the IM reference signal is determined according to the group identification of the second device.
  • the IM reference signal is a zero power reference signal.
  • the first time-frequency resource includes only the last n sub-time units in the time unit where the IM reference signal is located in the time domain, and the value of n is less than or equal to N/2,
  • the N is the number of sub-time units in the time unit, and the value of N is a positive integer.
  • the determining module is configured to determine the interference information according to the following manner:
  • the P 1 represents the interference power measured by the first device on the first time-frequency resource
  • the P 2 represents the interference information
  • the M 2 is the measurement bandwidth in the channel competition mechanism
  • the M1 is the bandwidth occupied by the IM reference signal
  • the channel is in a non-idle state
  • the channel is in an idle state.
  • a second device 1600 provided in an embodiment of the present application includes:
  • an acquisition module 1601 configured to generate a non-zero power signal, the time-frequency resource of the non-zero power signal and the time-frequency resource of the interference measurement IM reference signal configured by the second device for the first device do not overlap;
  • a sending module 1602 configured to send the non-zero power signal to a first device, where the second device is a device having the same group identifier as the first device.
  • the interference measurement IM reference signal configured by the second device for the first device is determined according to the group identifier of the second device.
  • a first device 1700 is provided in an embodiment of the present application.
  • the first device 1700 belongs to a communication system, and the communication system further includes: a second device, and the second device is connected to the first device.
  • the devices have the same group ID, and the first device 1700 includes:
  • a receiving module 1701 configured to receive a first reference signal from the second device
  • a measurement module 1702 measuring the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, where the value of M is a positive integer;
  • a determination module 1703 configured to acquire the received power of the first reference signal in the time unit; according to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the first reference The received power of the signal within the time unit determines the first interfering signal strength;
  • Judging module 1704 configured to judge that the channel is in a non-idle state when the strength of the first interference signal is greater than a preset threshold; and judge that the channel is in a non-idle state when the strength of the first interference signal is less than or equal to the threshold is idle.
  • the determining module is used for the first device to determine the frequency resource corresponding to the time unit where the first reference signal is located; on the frequency resource corresponding to the time unit where the first reference signal is located Reference signal measurement is performed to obtain the received power of the first reference signal within the time unit.
  • the determining module is configured to determine that the first interference signal strength is equal to the the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, minus the received power of the first reference signal in the time unit; or, between the first device and the second On the frequency resource without data transmission in the group where the device is located, it is determined that the strength of the first interference signal is equal to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located.
  • the determining module is configured to adjust the strength of the first interference signal according to the power correspondence between the reference signal and the data signal, to obtain the adjusted strength of the first interference signal;
  • the judging module is configured to judge whether the channel is in an idle state according to the adjusted strength of the first interference signal.
  • the first reference signal is a channel demodulation first reference signal DMRS.
  • the first reference signal is carried on a physical sidelink shared channel or a physical sidelink control channel.
  • the determining module is configured to convert the first interference signal strength into inter-group interference power in the following manner:
  • the P 1 represents the strength of the first interference signal
  • the P 2 represents the inter-group interference power
  • the M 2 is the measurement bandwidth in the channel competition mechanism
  • the M 1 is the first reference The bandwidth occupied by the signal
  • the judging module is configured to determine that the channel is in a non-idle state when the inter-group interference power is greater than a preset threshold; and determine that the channel is in a non-idle state when the inter-group interference power is less than or equal to the threshold idle state.
  • pre-set and pre-defined may be pre-saved in a device (for example, including a terminal and a network device), a corresponding code, a table, or other methods that can be used to indicate relevant information
  • a device for example, including a terminal and a network device
  • a corresponding code for example, including a terminal and a network device
  • a table for example, a table, or other methods that can be used to indicate relevant information
  • FIG. 18 shows a schematic block diagram of a communication apparatus 800 according to an embodiment of the present application.
  • the communication apparatus 800 may include a processor 810 , a memory 820 , a transceiver 830 and a bus system 840 .
  • Various components of the communication device 800 are coupled together through a bus system 840, where the bus system 840 may include a power bus, a control bus, a status signal bus, and the like in addition to a data bus.
  • the various buses are labeled as bus system 840 in FIG. 18 .
  • FIG. 18 For convenience of representation, only a schematic drawing is shown in FIG. 18 .
  • the communication apparatus 800 may correspond to the above steps 802 to 804 or the first device described in steps 902 to 905, or may be a chip or component applied to the first device, and the communication apparatus Each module or unit in 800 is respectively used to execute the above steps 802 to 804 or each action or processing process performed by the first device in steps 902 to 905 .
  • the communication device 800 may correspond to the second device described in step 801 or step 901, or may be a chip or component applied to the second device, and each module or unit in the communication device 800 is used to execute the above 801, or each action or process performed by the second device described in step 901.
  • the transceiver 830 may include a receiving unit (module) and a sending unit (module), configured to perform the foregoing steps 802 to 804, or steps 902 to 905, and the first in the embodiment shown in FIG. 15 or FIG. 17.
  • the steps by which a device receives and sends information Alternatively, it is used to perform the foregoing step 801, or step 901, and the steps of receiving information and sending information by the second device in the embodiment shown in FIG. 16 .
  • the transceiver 830 may be a transceiver, an input/output interface, or an interface circuit.
  • the communication apparatus 800 shown in FIG. 18 or the communication apparatus 800 shown in FIG. 18 can implement the steps performed by the first device or the second device in each of the foregoing embodiments of the methods provided in this application. Similar descriptions can refer to the descriptions in the aforementioned corresponding methods. In order to avoid repetition, details are not repeated here.
  • the communication apparatus 800 shown in FIG. 18 may be a terminal device.
  • each unit in the communication apparatus can all be implemented in the form of software calling through the processing element; also can all be implemented in the form of hardware; some units can also be implemented in the form of software calling through the processing element, and some units can be implemented in the form of hardware.
  • each unit can be a separately established processing element, or can be integrated in a certain chip of the device to be implemented, and can also be stored in the memory in the form of a program, which can be called by a certain processing element of the device and execute the unit's processing. Function.
  • the processing element may also be called a processor, which may be an integrated circuit with signal processing capability.
  • each step of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in the processor element or implemented in the form of software being invoked by the processing element.
  • a unit in any of the above communication devices may be one or more integrated circuits configured to implement the above method, eg, one or more application specific integrated circuits (ASICs), or, a or more digital signal processors (DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • FPGAs field programmable gate arrays
  • a unit in the apparatus can be implemented in the form of a processing element scheduler
  • the processing element can be a general-purpose processor, such as a central processing unit (central processing unit, CPU) or other processors that can invoke programs.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • FIG. 19 is a schematic structural diagram of a terminal device 900 provided by this application.
  • the above-mentioned communication apparatus 800 may be configured in the terminal device 900 .
  • the communication apparatus 800 itself may be the terminal device 900 .
  • the terminal device 900 may perform the above steps 802 to 804 or the actions performed by the first device in steps 902 to 905 .
  • the terminal device 900 may perform the above step 801 or the action performed by the second device in step 901 .
  • FIG. 19 only shows the main components of the terminal device.
  • the terminal device 900 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process communication protocols and communication data, and to control the entire terminal device, execute software programs, and process data of the software programs, for example, for supporting the terminal device to execute the above-mentioned transmission precoding matrix instruction method embodiment. the described action.
  • the memory is mainly used to store software programs and data, such as the codebook described in the above embodiments.
  • the control circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • the control circuit together with the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 19 only shows one memory and one processor. In an actual terminal device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present application.
  • the processor may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processing unit is mainly used to control the entire terminal device, execute software programs, and process software programs. data.
  • the processor in FIG. 19 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus.
  • a terminal device may include multiple baseband processors to adapt to different network standards, a terminal device may include multiple central processors to enhance its processing capability, and various components of the terminal device may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • an antenna and a control circuit with a transceiver function may be regarded as the transceiver unit 901 of the terminal device 900
  • a processor with a processing function may be regarded as the processing unit 902 of the terminal device 900
  • the terminal device 900 includes a transceiver unit 901 and a processing unit 902 .
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like.
  • the device for implementing the receiving function in the transceiver unit 901 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 901 may be regarded as a transmitting unit, that is, the transceiver unit 501 includes a receiving unit and a transmitting unit.
  • the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, and the like
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.
  • the processor may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), dedicated integrated Circuit (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory Fetch memory
  • direct memory bus random access memory direct rambus RAM, DR RAM
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs.
  • the processes or functions according to the embodiments of the present application are generated in whole or in part.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored on or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted over a wire from a website site, computer, server or data center (eg infrared, wireless, microwave, etc.) to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like containing a set of one or more available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • This embodiment also provides a computer storage medium, where computer instructions are stored in the computer storage medium, and when the computer instructions are executed on the communication device, the communication device executes the above-mentioned related method steps to realize the wireless signaling in the above-mentioned embodiment.
  • This embodiment also provides a computer program product, when the computer program product runs on a computer, the computer program product causes the computer to execute the above-mentioned relevant steps, so as to realize the method for configuring the signaling radio bearer and the sidelink data in the above-mentioned embodiment.
  • the method of packet transmission when the computer program product runs on a computer, the computer program product causes the computer to execute the above-mentioned relevant steps, so as to realize the method for configuring the signaling radio bearer and the sidelink data in the above-mentioned embodiment.
  • the embodiments of the present application also provide an apparatus, which may specifically be a chip, a component or a module, and the apparatus may include a connected processor and a memory; wherein, the memory is used for storing computer execution instructions, and when the apparatus runs , the processor can execute the computer execution instructions stored in the memory, so that the chip executes the signaling radio bearer configuration method and the sidelink data packet transmission method in the above method embodiments.
  • the communication device, computer storage medium, computer program product or chip provided in this embodiment are all used to execute the corresponding method provided above. Therefore, for the beneficial effects that can be achieved, reference may be made to the corresponding provided above. The beneficial effects in the method will not be repeated here.
  • Embodiment 1 an information transmission method, the method is applied to a first device, and the method includes:
  • the first device performs interference measurement on a first time-frequency resource to determine interference information, where the first time-frequency resource is determined according to configuration information of an IM reference signal for interference measurement, and the IM reference signal is used for Measure the interference situation of the channel; the time-frequency resources of the IM reference signal do not overlap with the time-frequency resources of the non-zero power signal, and the non-zero power signal is sent by the second device, and the second device is the same as the first device.
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • Embodiment 2 The method according to Embodiment 1, wherein the IM reference signal is determined according to the group identifier of the second device.
  • Embodiment 3 The method of any one of Embodiments 1 to 2, wherein the IM reference signal is a zero-power reference signal.
  • Embodiment 4 The method according to any one of Embodiments 1 to 3, wherein the first time-frequency resource includes only the last n sub-time units in the time unit where the IM reference signal is located in the time domain , the value of n is less than or equal to N/2, the N is the number of sub-time units in the time unit, and the value of N is a positive integer.
  • Embodiment 5 The method according to any one of Embodiments 1 to 4, wherein the determining, by the first device, the interference information includes:
  • the first device determines the interference information according to the following manner:
  • the P 1 represents the interference power measured by the first device on the first time-frequency resource
  • the P 2 represents the interference information
  • the M 2 is the measurement bandwidth in the channel competition mechanism
  • the M1 is the bandwidth occupied by the IM reference signal
  • the channel is in a non-idle state
  • the channel is in an idle state.
  • Embodiment 6 an information transmission method, wherein the method is applied to a second device, and the method includes:
  • the second device generates a non-zero power signal, and the time-frequency resources of the non-zero power signal do not overlap with the time-frequency resources of the interference measurement IM reference signal configured by the second device for the first device;
  • the second device sends the non-zero power signal to a first device, where the second device is a device having the same group identification as the first device.
  • Embodiment 7 The method according to Embodiment 6, wherein the interference measurement IM reference signal configured by the second device for the first device is determined according to the group identifier of the second device.
  • Embodiment 8 an information transmission method, wherein the method is applied to a first device in a communication system, and the communication system further includes: a second device, and the second device is the same as the first device.
  • a device identified by a group, the method comprising:
  • the first device receives the first reference signal from the second device, and measures the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, where the value of M is a positive integer ;
  • the first device determines the first interference signal strength according to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the received power of the first reference signal in the time unit;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • Embodiment 9 The method according to Embodiment 8, wherein the obtaining, by the first device, the received power of the first reference signal in the time unit includes:
  • the first device performs reference signal measurement on the frequency resource corresponding to the time unit where the first reference signal is located, so as to obtain the received power of the first reference signal within the time unit.
  • Embodiment 10 The method according to Embodiment 8 or 9, wherein the first device uses the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the first reference signal The received power in the time unit determines the first interfering signal strength, including:
  • the first device determines that the strength of the first interference signal is equal to the last M of the time unit where the first reference signal is located on the frequency resource in which data is transmitted in the group where the first device and the second device are located The total channel energy in sub-time units, minus the received power of the first reference signal in the time unit; or,
  • the first device determines that the strength of the first interference signal is equal to the last M of the time unit where the first reference signal is located on the frequency resource in which no data is transmitted in the group where the first device and the second device are located The total energy of the channel in sub-time units.
  • Embodiment 11 The method according to any one of Embodiments 8 to 10, wherein after the first device determines the first interference signal strength, the method further includes:
  • the first device adjusts the strength of the first interference signal according to the power correspondence between the reference signal and the data signal, to obtain the adjusted strength of the first interference signal;
  • the method also includes:
  • the first device determines whether the channel is in an idle state according to the adjusted first interference signal strength.
  • Embodiment 12 The method according to any one of Embodiments 8 to 11, wherein the first reference signal is a channel demodulation first reference signal DMRS.
  • Embodiment 13 The method according to any one of Embodiments 8 to 12, wherein the first reference signal is carried on a physical sidelink shared channel or a physical sidelink control channel.
  • Embodiment 14 The method according to any one of Embodiments 8 to 13, wherein the method further comprises:
  • the first device converts the first interference signal strength into inter-group interference power in the following manner:
  • the P 1 represents the strength of the first interference signal
  • the P 2 represents the inter-group interference power
  • the M 2 is the measurement bandwidth in the channel competition mechanism
  • the M 1 is the first reference The bandwidth occupied by the signal
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • Embodiment 15 an information transmission method, wherein the method is applied to a first device, and the method includes:
  • the first device determines the first interference signal strength of the channel used by the first device to send the message, wherein the first interference signal strength does not include the second interference signal strength, and the second interference signal strength is the second interference signal strength.
  • the interference signal strength caused by the device to the first device, and the second device is a device with the same group identifier as the first device;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • Embodiment 16 an information transmission method, wherein the method is applied to a communication system, the communication system includes a first device and a second device, and the second device has the same group identifier as the first device device, the method includes:
  • the second device configures a first time-frequency resource, where the first time-frequency resource is configuration information of an IM reference signal for interference measurement; the IM reference signal is used to measure the interference situation of the channel;
  • the second device generates a non-zero power signal and sends the non-zero power signal to the first device;
  • the first device performs interference measurement on a first time-frequency resource to determine interference information, where the first time-frequency resource is determined according to configuration information of an IM reference signal for interference measurement, and the IM reference signal is used for Measure the interference situation of the channel; the time-frequency resources of the IM reference signal do not overlap with the time-frequency resources of the non-zero power signal;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • Embodiment 17 an information transmission method, the method is applied to a communication system, the communication system includes: a first device and a second device, the second device is a device with the same group identifier as the first device , the method includes:
  • the first device receives the first reference signal from the second device, and measures the total channel energy in the last M sub-time units of the time unit where the first reference signal is located, where the value of M is positive integer;
  • the first device determines the first interference signal strength according to the total channel energy in the last M sub-time units of the time unit where the first reference signal is located and the received power of the first reference signal in the time unit;
  • the first device determines that the channel is in a non-idle state
  • the first device determines that the channel is in an idle state.
  • Embodiment 18 a communication apparatus, wherein the communication apparatus is a first device, the apparatus includes at least one processor, the at least one processor is coupled to at least one memory:
  • the at least one processor is configured to execute computer programs or instructions stored in the at least one memory, so that the communication apparatus executes the method according to any one of Embodiments 1 to 5.
  • Embodiment 19 A communication apparatus, wherein the communication apparatus is a second device, and the apparatus includes at least one processor coupled with at least one memory:
  • the at least one processor is configured to execute computer programs or instructions stored in the at least one memory, so that the communication apparatus performs the method according to any one of Embodiments 6 to 7.
  • Embodiment 20 a communication system, wherein the communication system includes: the first device as described in Embodiment 18, and the second device as described in Embodiment 19.
  • Embodiment 21 A communication apparatus, wherein the communication apparatus is a first device, and the apparatus includes at least one processor coupled with at least one memory:
  • the at least one processor is configured to execute computer programs or instructions stored in the at least one memory, so that the communication apparatus performs the method according to any one of Embodiments 8 to 14.
  • Embodiment 22 A computer-readable storage medium, where a computer program or instruction is stored, and when the computer reads and executes the computer program or instruction, the computer is made to execute the steps as in Embodiments 1-5. , or the method described in any one of Embodiments 6-7, or Embodiments 8-14, or Embodiment 15, or Embodiment 16, or Embodiment 17.
  • Embodiment 23 A chip, comprising: a processor for calling and running a computer program from a memory, so that a communication device installed with the chip executes the steps of Embodiments 1-5, or Embodiments 6-7, Or the method described in any one of Embodiments 8-14, or Embodiment 15, or Embodiment 16, or Embodiment 17.
  • the disclosed apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of modules or units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or May be integrated into another device, or some features may be omitted, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • Units described as separate components may or may not be physically separated, and components shown as units may be one physical unit or multiple physical units, that is, may be located in one place, or may be distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium.
  • a readable storage medium including several instructions to make a device (which may be a single chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read only memory (ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program codes.

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Abstract

本申请提供一种信息传输方法和通信装置。本申请实施例提供的一种方法应用于第一设备，方法包括：第一设备在第一时频资源上进行干扰测量，以确定干扰信息，其中，第一时频资源是根据干扰测量IM参考信号的配置信息确定的，IM参考信号用于测量信道的干扰情况；IM参考信号的时频资源与非零功率信号的时频资源不重叠，非零功率信号由第二设备发送，第二设备是与第一设备具有相同组标识的设备；当干扰信息大于预设的阈值时，第一设备判断信道处于非空闲状态；当干扰信息小于或等于阈值时，第一设备判断信道处于空闲状态。本申请实施例提供的方法中第一设备可以判断信道是否空闲，进而可以使用空闲的信道进行数据传输，以提升网络容量和资源效率。

Description

一种信息传输方法和通信装置
本申请要求于2020年8月19日提交中国专利局、申请号为202010837798.0、发明名称为“一种LBT增强的方法”以及2020年12月24日提交中国专利局、申请号为202011552746.5、发明名称为“一种信息传输方法和通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其涉及一种信息传输方法和通信装置。
背景技术
非授权侧行链路(sidelink-unlicense，SL-U)技术是蜂窝物联网技术的一个重要分支，该SL-U技术的存在为物联应用创造了广阔的应用前景，颠覆传统的蜂窝网络通信架构甚至运营方式。例如，车联网(vehicle to x，V2X)是基于侧链路(sidelink)的架构的的场景和技术演进。SL-U的频谱为非授权频谱，非授权频谱具有开放性，可以通过有效的利用来提升数据的传输性能和速率。非授权频谱具有非授权性，不同的通信系统都可以在非授权频谱上进行传输、竞争资源。
SL-U的一个典型场景之一为以群组(group)为单位运行，可以支持局部组队场景。在组队场景中，组内的终端设备需要进行载波侦听(carrier sensing，CS)。目前的SL-U传输过程中的网络容量和资源效率还存在进一步提高的空间。
发明内容
本申请实施例提供了一种信息传输方法和通信装置，用于提升网络容量和资源效率。
为解决上述技术问题，本申请实施例提供以下技术方案：
第一方面，本申请实施例提供一种信息传输方法，该方法的执行主体既可以是第一设备，也可以是应用于第一设备的芯片。其中，第一设备与第二设备具有相同组标识，第一设备和第二设备之间传输数据和信令。该方法包括：
所述第一设备在第一时频资源上进行干扰测量，以确定干扰信息，其中，所述第一时频资源是根据干扰测量IM参考信号的配置信息确定的，所述IM参考信号用于测量信道的干扰情况；所述IM参考信号的时频资源与非零功率信号的时频资源不重叠，所述非零功率信号由第二设备发送，所述第二设备是与所述第一设备具有相同组标识的设备；
当所述干扰信息大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述干扰信息小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
本申请实施例中，IM参考信号的时频资源与非零功率信号的时频资源不重叠，该IM参考信号的配置信息可用于确定第一时频资源，第一设备在该第一时频资源上进行干扰测量，从而确定干扰信息，该干扰信息是第一设备和第二设备所在组的组间干扰，该干扰信息能够用于判断出信道是否处于空闲状态，因此本申请实施例中第一设备可以判断信道是否空闲，信道空闲具体指的是组间信道空闲，进而可以使用组间空闲的信道进行数据传输，以提升网络容量和资源效率。
可选的，所述IM参考信号是根据所述第二设备的组标识确定的。
在本申请实施例中，不同组标识对应于不同的IM参考信号，第二设备根据该第二设备的组标识配置上述IM参考信号，第一设备和第二设备具有相同的组标识，第一设备根据该第一设备所在的组标识可以识别出该组对应的IM参考信号，从而使得第一设备可以识别出不同组标识对应的IM参考信号。
可选的，所述IM参考信号为零功率参考信号。
在本申请实施例中，第一设备在该第一时频资源上测量到的能量就是干扰信息，即在第一时频资源上测量得到的干扰信号为组间干扰强度，该组间干扰强度可以称为组间和系统间(inter-group/system)干扰。
可选的，所述第一时频资源，在时域上只包括所述IM参考信号所在时间单位中的最后n个子时间单位，所述n取值小于或等于N/2，所述N为所述时间单位中的子时间单位个数，且所述N的取值为正整数。
在本申请实施例中，第一时频资源在时域上可以只包括IM参考信号所在时间单位中的最后n个子时间单位，即IM参考信号不在该时间单位的前(N-n)个子时间单元上传输。例如时间单元可以是时隙(slot)，子时间单元可以是符号(symbol)。
可选的，所述第一设备确定干扰信息，包括：
所述第一设备根据如下方式确定所述干扰信息：
P 2＝P 1+10log10(M 2/M 1)；
其中，所述P 1表示所述第一设备在所述第一时频资源上测量得到的干扰功率，所述P 2表示所述干扰信息，所述M 2为信道竞争机制中的测量带宽，所述M 1为所述IM参考信号所占的带宽；
当所述P 2大于所述阈值时，所述信道处于非空闲状态；
当所述P 2小于或等于所述阈值时，所述信道处于空闲状态。
在本申请实施例中，第一设备在第一时频资源上测量得到的干扰功率P 1，按照上述公式进行转换，以得到干扰信息P 2，通过上述公式，可以获得最终的干扰信息，基于该干扰信息可以判断信道是否空闲。
第二方面，本申请实施例还提供一种信息传输方法，该方法的执行主体既可以是第二设备，也可以是应用于第二设备的芯片。其中，第二设备与第一设备具有相同组标识，第二设备和第一设备之间传输数据和信令。该方法包括：
所述第二设备生成非零功率信号，所述非零功率信号的时频资源与所述第二设备为第一设备配置的干扰测量IM参考信号的时频资源不重叠；
所述第二设备向第一设备发送所述非零功率信号，所述第二设备是与所述第一设备具有相同组标识的设备。
可选的，所述第二设备为第一设备配置的干扰测量IM参考信号是根据所述第二设备的组标识确定的。
第三方面，本申请实施例还提供一种信息传输方法，该方法的执行主体既可以是第一设备，也可以是应用于第一设备的芯片。其中，第一设备与第二设备具有相同组标识，第一设备和第二设备之间传输数据和信令。该方法包括：
所述第一设备接收来自所述第二设备的第一参考信号，并测量所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，所述M的取值为正整数；
所述第一设备获取所述第一参考信号在所述时间单位内的接收功率；
所述第一设备根据所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和所述第一参考信号在所述时间单位内的接收功率确定第一干扰信号强度；
当所述第一干扰信号强度大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述第一干扰信号强度小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
在本申请实施例中，
可选的，所述第一设备获取所述第一参考信号在所述时间单位内的接收功率，包括：
所述第一设备确定所述第一参考信号所在时间单位对应的频率资源；
所述第一设备在所述第一参考信号所在时间单位对应的频率资源上进行参考信号测量，以得到所述第一参考信号在所述时间单位内的接收功率。
在本申请实施例中，第一设备可以通过第一参考信号的配置信息得到第一参考信号所在时间单位对应的频率资源，然后第一设备在第一参考信号所在时间单位对应的频率资源上进行参考信号测量，通过测量结果得到第一参考信号在时间单位内的接收功率。对于参考信号的测量过程，本申请实施例不再给出详细过程。本申请实施例通过上述在第一参考信号对应的频率资源上进行参考信号测量，可以获取到第一参考信号的接收功率，解决了无法获取第一参考信号的接收功率的问题。
可选的，所述第一设备根据所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和所述第一参考信号在所述时间单位内的接收功率确定所述第一干扰信号强度，包括：
在所述第一设备和所述第二设备所在的组内有数据传输的频率资源上，所述第一设备确定所述第一干扰信号强度等于所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，减去所述第一参考信号在所述时间单位内的接收功率；或者，
在所述第一设备和所述第二设备所在的组内没有数据传输的频率资源上，所述第一设备确定所述第一干扰信号强度等于所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量。
在本申请实施例中，第一设备所在组的频率资源可以分为两种：一种是组内有数据传输的频率资源，另一种是组内有没有数据传输的频率资源。对于组内有数据传输的频率资源的情况，通过前述的总能量和接收功率之间进行相减运算，可以得到第一干扰信号强度。对于组内有没有数据传输的频率资源的情况，第一设备接收到信道的总能量就是第一干扰信号强度。本申请实施例中通过针对组内是否有数据传输的频率资源的情况，都可以确定第一干扰信号强度。
可选的，所述第一设备确定第一干扰信号强度之后，所述方法还包括：
所述第一设备根据参考信号与数据信号的功率对应关系对所述第一干扰信号强度进行调整，得到调整后的第一干扰信号强度；
所述方法，还包括：
所述第一设备根据所述调整后的第一干扰信号强度判断信道是否处于空闲状态。
在本申请实施例中，第一设备确定的第一干扰信号强度是通过第一参考信号所在最后M个子时间单元的总能量，以及第一参考信号对应的接收功率得到的，为了得到更真实的信道环境干扰情况，还需要对第一干扰信号强度进行调整，例如可以将参考信号的功率向数据(data)信号的功率拉齐，获取到参考信号与数据信号的功率对应关系，例如该对应关系可以是参考信号与数据信号之间的比例关系，该比例关系可以通过配置信息获取。最后根据参考信号与数据信号的功率对应关系对第一干扰信号强度进行调整，从而使得获取到的调整后的第一干扰信号强度能够表示更真实的信道环境干扰情况。
可选的，所述第一参考信号为信道解调第一参考信号DMRS。
可选的，所述第一参考信号承载于物理侧行链路共享信道，或者物理侧行链路控制信道。
可选的，所述方法，还包括：
所述第一设备通过如下方式将所述第一干扰信号强度转换为组间干扰功率：
P 2＝P 1+10log10(M 2/M 1)；
其中，所述P 1表示所述第一干扰信号强度，所述P 2表示所述组间干扰功率，所述M 2为信道竞争机制中的测量带宽，所述M 1为所述第一参考信号所占的带宽；
当所述组间干扰功率大于预设的阈值时，所述第一设备确定所述信道处于非空闲状态；
当所述组间干扰功率小于或等于所述阈值时，所述第一设备确定所述信道处于空闲状态。
在本申请实施例中，第一设备在第一时频资源上测量得到的干扰功率P 1，按照上述公式进行转换，以得到干扰信息P 2，通过上述公式，可以获得最终的干扰信息，基于该干扰信息可以判断信道是否空闲。
第四方面，本申请实施例还提供一种信息传输方法，该方法的执行主体既可以是第一设备，也可以是应用于第一设备的芯片。其中，第一设备与第二设备具有相同组标识，第一设备和第二设备之间传输数据和信令。该方法包括：
所述第一设备确定所述第一设备发送消息所用的信道的第一干扰信号强度，其中，所述第一干扰信号强度不包含第二干扰信号强度，所述第二干扰信号强度为第二设备对所述第一设备造成的干扰信号强度，所述第二设备是与所述第一设备具有相同组标识的设备、且所述第二设备不是发送所述参考信号的设备；
当所述干扰信息大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述干扰信息小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
第五方面，本申请实施例还提供一种信息传输方法，该方法的执行主体既可以是第一设备，也可以是应用于第一设备的芯片。其中，第一设备与第二设备具有相同组标识，第一设备和第二设备之间传输数据和信令。该方法包括：
所述第一设备在第一时间资源上测量干扰信息，确定第一干扰信息强度，其中，所述第一时间资源是第一设备发送数据消息或者控制消息时刻的前n个子时间单位，所述n取值小于或等于N/2，所述N为所述第一设备发送数据消息或控制消息的时间单位中的子时 间单位个数，且所述N的取值为正整数；所述第一干扰信息强度不包含第二干扰信息强度，所述第二干扰信息强度为第二设备对所述第一设备造成的干扰，所述第二设备是与所述第一设备具有相同组标识的设备；
当所述干扰信息大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述干扰信息小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
第六方面，本申请实施例还提供一种信息传输方法，该方法的执行主体既可以是第一设备和第二设备，也可以是应用于第一设备的芯片和应用于第二设备的芯片。其中，第一设备与第二设备具有相同组标识，第一设备和第二设备之间传输数据和信令。该方法包括：
所述第二设备配置第一时频资源，所述第一时频资源是干扰测量IM参考信号的配置信息；所述IM参考信号用于测量信道的干扰情况；
所述第二设备生成非零功率信号，并向第一设备发送所述非零功率信号；
所述第一设备在第一时频资源上进行干扰测量，以确定干扰信息，其中，所述第一时频资源是根据干扰测量IM参考信号的配置信息确定的，所述IM参考信号用于测量信道的干扰情况；所述IM参考信号的时频资源与所述非零功率信号的时频资源不重叠；
当所述第一干扰信号强度大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述第一干扰信号强度小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
第七方面，本申请实施例还提供一种信息传输方法，该方法的执行主体既可以是第一设备和第二设备，也可以是应用于第一设备的芯片和应用于第二设备的芯片。其中，第一设备与第二设备具有相同组标识，第一设备和第二设备之间传输数据和信令。该方法包括：
所述第二设备向所述第一设备发送第一参考信号；
所述第一设备接收来自所述第二设备的所述第一参考信号，并测量所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，所述M的取值为正整数；
所述第一设备获取所述第一参考信号在所述时间单位内的接收功率；
所述第一设备根据所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和所述第一参考信号在所述时间单位内的接收功率确定第一干扰信号强度；
当所述第一干扰信号强度大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述第一干扰信号强度小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
第八方面，提供了一种通信装置，该装置包括用于执行以上第一方面、第三方面至第四方面、第五方面至第七方面中第一设备执行的方法中任意一方面的各个步骤的单元，或者，包括用于执行以上第一方面、第三方面至第四方面、第五方面至第七方面中第一设备执行的方法中的任意一方面可能的实现方式中的各个步骤的单元。
第九方面，提供了一种通信装置，该装置包括用于执行以上第二方面、第五方面至第七方面中第二设备执行的方法中任意一方面的各个步骤的单元，或者，包括用于执行以上第二方面、第五方面至第七方面中第二设备执行的方法中的任意一方面可能的实现方式中 的各个步骤的单元。
第十方面，提供了一种通信装置，该装置包括至少一个处理器和存储器，该至少一个处理器用于执行以上第一方面、第三方面至第四方面、第五方面至第七方面中第一设备执行的方法中任意一方面的方法，或者，用于执行以上第一方面、第三方面至第四方面、第五方面至第七方面中第一设备执行的方法中的任意一方面可能的实现方式中的方法。
第十一方面，提供了一种通信装置，该装置包括至少一个处理器和存储器，该至少一个处理器用于执行以上第二方面、第五方面至第七方面中第二设备执行的任意一方面中的方法，或者，用于执行以上第二方面、第五方面至第七方面中第二设备执行的任意一方面可能的实现方式中的方法。
第十二方面，提供了一种通信装置，该装置包括至少一个处理器和接口电路，该至少一个处理器用于执行以上第一方面、第三方面至第四方面、第五方面至第七方面中第一设备执行的方法中任意一方面的方法，或者，包括用于执行以上第一方面、第三方面至第四方面、第五方面至第七方面中第一设备执行的方法中的任意一方面可能的实现方式中的各个步骤的方法。
第十三方面，提供了一种通信装置，该装置包括至少一个处理器和接口电路，该至少一个处理器用于执行以上第二方面、第五方面至第七方面中第二设备执行的方法中任意一方面的各个步骤的方法，或者，包括用于执行以上第二方面、第五方面至第七方面中第二设备执行的方法中的任意一方面可能的实现方式中的各个步骤的方法。
第十四方面，提供了一种终端设备，该终端设备包括上述第八方面、第十方面或者第十二方面提供的任一种通信装置。
第十五方面，提供了一种终端设备，该终端设备包括上述第九方面、第十一方面或者第十三方面提供的任一种通信装置。
第十六方面，提供了一种计算机程序产品，该计算机程序产品包括计算机程序，该计算机程序在被处理器执行时，用于执行第一方面至第七方面中任意一方面中的方法，或者，用于执行第一方面至第七方面中任意一方面中的任意可能的实现方式中的方法。
第十七方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，当该计算机程序被执行时，用于执行第一方面至第七方面中任意一方面中的方法，或者，用于执行第一方面至第七方面中任意一方面中的任意可能的实现方式中的方法。
第十八方面，提供了一种芯片，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的通信设备执行第一方面至第七方面中任意一方面中的方法，或者，用于执行第一方面至第七方面中任意一方面中的任意可能的实现方式中的方法。
从以上技术方案可以看出，本申请实施例具有以下优点：
在本申请实施例中，第一设备在第一时频资源上进行干扰测量，以确定干扰信息，其中，第一时频资源是根据干扰测量IM参考信号的配置信息确定的，IM参考信号用于测量信道的干扰情况；IM参考信号的时频资源与非零功率信号的时频资源不重叠，非零功率信号由第二设备发送，第二设备是与第一设备具有相同组标识的设备；第一设备根据干扰信息判断信道是否处于空闲状态。本申请实施例中，IM参考信号的时频资源与非零功率信号的时频资源不重叠，该IM参考信号的配置信息可用于确定第一时频资源，第一设备在该第 一时频资源上进行干扰测量，从而确定干扰信息，该干扰信息是第一设备和第二设备所在组的组间干扰，该干扰信息能够用于判断出信道是否处于空闲状态，因此本申请实施例中第一设备可以判断信道是否空闲，例如信道空闲具体指的是组间信道空闲，进而可以使用组间空闲的信道进行数据传输，以提升网络容量和资源效率。
在本申请实施例中，第一设备接收来自第二设备的第一参考信号，并测量第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，M的取值为正整数；第一设备获取第一参考信号在时间单位内的接收功率；第一设备根据第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和第一参考信号在时间单位内的接收功率确定第一干扰信号强度；第一设备根据第一干扰信号强度判断信道是否处于空闲状态。本申请实施例中，第二设备获取到了第一参考信号所在时间单位的最后M个子时间单位内的总接收能量，该总能量是信道上第一设备接收的总能量(可以简称为总能量)；第一设备获取到了第一参考信号的接收功率，该接收功率是信道上的第一参考信号的有效功率，因此通过上述的总能量和上述的接收功率可以确定第一干扰信号强度，该第一干扰信号强度是第一设备和第二设备所在组的组间干扰，该第一干扰信号强度能够用于判断出信道是否处于空闲状态，因此本申请实施例中第一设备可以判断信道是否空闲，例如信道空闲具体指的是组间信道空闲，进而可以使用组间空闲的信道进行数据传输，以提升网络容量和资源效率。
附图说明
图1为本申请实施例提供的一种SL-U的场景的示意图；
图2为本申请实施例提供的另一种SL-U的场景的示意图；
图3为本申请实施例提供的一种移动通信系统的示意图；
图4为本申请实施例中第一设备与其它设备组建群组的示意图；
图5为本申请实施例中第二设备与其它设备组建群组的示意图；
图6为本申请实施例中第二设备与第一设备组建群组的示意图；
图7a为本申请实施例中GM2中途加入上行业务的示意图；
图7b为本申请实施例中GM1和GM2同时进行下行业务的示意图；
图8为本申请实施例提供的一种信息传输方法的交互流程示意图；
图9为本申请实施例提供的另一种信息传输方法的交互流程示意图；
图10为本申请实施例提供的一种UE进行侧链路通信的场景示意图；
图11为本申请实施例提供的一种侧链路通信中采用组机制的场景示意图；
图12a为本申请实施例提供的IM参考信号的一种时频资源图案的示意图；
图12b为本申请实施例提供的IM参考信号的另一种时频资源图案的示意图；
图12c为本申请实施例提供的IM参考信号的另一种时频资源图案的示意图；
图13为本申请实施例提供的一种计算组间干扰信号强度的应用场景示意图；
图14为本申请实施例提供的一种计算组间干扰信号强度的应用场景示意图；
图15为本申请实施例提供的一种第一设备的组成结构示意图；
图16为本申请实施例提供的一种第二设备的组成结构示意图；
图17为本申请实施例提供的一种第一设备的组成结构示意图；
图18为本申请实施例提供的一种第一设备的组成结构示意图；
图19为本申请实施例提供的一种第二设备的组成结构示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
在本申请实施例的描述中，除非另有说明，“/”表示或的意思，例如，A/B可以表示A或B；本文中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，在本申请实施例的描述中，“多个”是指两个或多于两个。
以下，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
本申请实施例的技术方案可以应用于各种通信系统，例如：车辆对其他设备(vehicle to everything，V2X)、设备到设备(device to device，D2D)通信系统、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、第五代(5th Generation，5G)系统或新无线(New Radio，NR)等。
本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。V2X通信系统中的汽车、车载设备、路边装置(road site unit，RSU)等。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备。例如，可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元，车辆通过内置的该车载模块、车载模组、车载部件、车载芯片、车载单元或者路边站等。或者还可以是未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例中的网络设备(或者可以称为无线接入网设备)可以具有能够为终端设备提供随机接入功能的设备或可设置于该设备的芯片，该设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission and reception point， TRP或者transmission point，TP)等，还可以为5G，如，NR，系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(DU，distributed unit)、未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
在本申请实施例中，终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。
另外，本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
V2X通信是车联网中实现环境感知、信息交互的重要关键技术，这里的其他设备可以是其他车辆、其他基础设施、行人、终端设备等。V2X通信可以看成是设备到设备(device to device，D2D)通信的一种特殊情形。不同终端设备之间的通信链路可以称之为侧行链路(Sidelink，SL)。
在V2X通信中，相互通信的两个终端设备利用PC5接口进行控制信息和数据的传输。PC5接口也可以称为PC5参考点，是两个终端设备之间通信的接口。PC5接口信令(PC5 signalling，PC5-S)可以包括：直接通信请求/接受(Direct Communication Request/Accept)、链路标识符(Link Identifier)、更新请求/响应/确认(Update Request/Response/Ack)、断开连接请求/响应(Disconnect Request/Response)，链路修改请求/接受(Link Modification Request/Accept)等。
V2X是基于侧行链路(sidelink)的架构进行的场景的扩展和技术演进。由于sidelink占用的授权(License)频谱，需要与LTE/NR网络的频谱资源进行协调，导致使用的场景可能受限，速率也无法进一步提高。而非授权(Unlicense)频谱是开放的，可以通过有效的利用来提升性能和速率。Unlicense频谱的非授权性，使得所有系统都可以在上面进行 传输、竞争资源，这种称之为非授权侧行链路(sidelink-unlicense，SL-U)技术。
在SL-U的场景中，以组(group)为单位运行，可以支持局部组队场景。例如SL-U的场景中可以包括：组头(group header，GH)和组成员(group member，GM)。SL-U具有多种应用场景，例如，在家庭场景下，手机、电视、个人电脑、平板、音响、手环、耳机等终端设备都加入到一个组中，以通过SL-U进行家庭场景下的通信。在会议室场景下，大屏设备、个人电脑、手机、平板等终端设备可以加入到一个组中，以通过SL-U进行会议场景下的通信。在组队游戏场景下，个人电脑、平板、手机等终端设备可以加入到一个组中，以通过SL-U进行组队游戏场景下的通信。
如图1所示，为本申请实施例提供的一种SL-U的场景的示意图。可以包括：GH1、GM1、GM2、GM3。其中，GH1可以是手机，GM1可以是手表，GM2可以是眼镜，GM3可以是耳机，例如图1可以应用于前述的家庭场景下。如图2所示，为本申请实施例提供的另一种SL-U的场景的示意图。可以包括：GH2、GM4、GM5、GM6。其中，GH2可以是大屏设备，GM4可以是手机，GM5可以是平板，GM6可以是音响，例如图2可以应用于前述的会议场景下。
在上述的SL-U场景中以组为单位运行，不仅可以很好的支持局部组队场景，还能够减少资源碰撞概率，例如在重负载(heavy traffic load)场景、用户数较多场景，如果用户设备(user equipment，UE)全部自主竞争资源，则产生资源冲突碰撞的概率很高。如果存在一个组头来统筹资源分配，则可以极大的降低资源碰撞事件。另外，还可以提高资源分配效率，在组间大颗粒度地协商好资源，群组内的组头可以进行统一分配。另外，还可以提升侧链路的通信性能，组头可以测量组内每个成员的信道信息、业务负载(load)、成员间相互信息，可以做到更好的链路控制。另外，还可以降低时延，减少组头或组员，与基站的信息交互，降低空口时延。
在上述的SL-U场景中组机制的运转，需要有一套完整的流程机制，其中关键流程和技术有：组流程的建立、组头的选择、群组维护(group maintain)的机制、组间和组内的资源分配等。
然而，目前的SL-U机制未考虑到组头的能力增强、以及两个组成员距离较远的情况，未能重复利用组内空间重用。
同时，目前SL-U传输的CS测量到的能量包括了当前时刻能够测量的所有接收信号能量，无法区分组内干扰和组外干扰，当Group内造成的接收信号能量较强时，会导致UE进行CS失败，此时UE会进行退避，从而使得组内空间重用(intra-group spatial reuse)失败。
有鉴于此，本申请提供了一种信息传输方法，当组头具有多天线能力，或组头具有较强的侧行链路控制信息(sidelink control information，SCI)接收能力，或者两个组成员距离较远时，可以使能组内空间重用(intra-group spatial reuse)，以提升网络容量和资源效率。
本申请实施例提供的方法可以由第一设备来执行，例如该第一设备可以是组成员，组成员可以是前述的各种终端设备。组成员可以确定该组成员发送消息所用的信道的第一干扰信号强度，其中，该组成员发送的消息可以是数据消息和/或控制消息，参考信号为组成员所在组内的除组成员以外的设备发送，组成员确定的第一干扰信号强度不包含第二干扰 信号强度，第二干扰信号强度为第二设备对组成员造成的干扰信号强度，第二设备是与组成员具有相同组标识的设备，因此组成员确定的第一干扰信号强度可以表示组间的干扰信号强度，而排除了组内传输造成的接收能量，组成员根据第一干扰信号强度判断信道是否处于空闲状态，使用该第一干扰信号强度判断出的信道是否空闲可以表示真实的信道闲忙状态，组成员可以在信道空闲时进行组内空间重用(intra-group spatial reuse)，以提升网络容量和资源效率。
不限定的是，本申请实施例提供的信息传输方法也可以由组头来执行，具体方式与上述类似，这里不做赘述。接下来仍以组成员执行上述信息传输方法进行示例说明。
本申请提供的方法可以应用在图1或图2所示的场景中，当然，也可以应用在其他具有组成员和组头的场景中。如图3所示，为本申请实施例提供的一种移动通信系统的示意图。该移动通信系统100可以包括至少一个组头110和至少一个组成员(如图3中所示的组成员120、130、140、150，160)。其中，组成员130、150、以及160可以为远端组成员，组成员130通过组成员120与组头110之间进行通信。组成员140或者组成员160通过组成员140与组头110之间进行通信。至少一个组成员可以发送上行数据或者信息给组头110，组头110也可以将下行数据或者信息发送给至少一个组成员。并且，多个组成员也可以组成一个通信系统，例如，组成员140、150，160可以组成一个通信系统，组成员140也可以将下行数据或者信息发送给组成员150和160，组成员150和160也可以将上行数据或者信息发送给组成员140。
其中，图3所示的至少一个组头110和图3所示的至少一个组成员(如图3中所示的组成员120、130、140、150，160)，具体可以是本申请实施例中后续说明的第一设备和第二设备，例如组头110可以是第一设备，组成员120可以是第二设备。或者，组成员130可以是第一设备，组成员150可以是第二设备。或者，组成员160可以是第二设备，组头110可以是第一设备。此处不做限定。
下面简单介绍第一设备和第二设备建立通信连接过程，在第一设备和第二设备建立通信连接后，第一设备便可以通过第二设备与网络设备之间传输数据或者控制信令。
当第一设备需要组建群组时，例如，用户使用第一设备时，用户需要使用第一设备和其它设备组建群组，如图4中的a图所示的，用户可以点击第一设备上界面上的“设置”菜单，显示的界面如图4中的b图所示的，显示“搜索组设备”菜单。“搜索组设备”表示希望通过其他的设备与网络设备之间进行通信。用户打开“搜索组设备”菜单后，如图4中的c图所示，在第一设备的界面上可以向用户显示可以作为组设备的其他设备的信息。例如，第一设备可以通过现有的无线网络通信协议等通信技术进行其他设备的搜索，将可以作为第一设备的组设备的其他设备的信息显示给用户，其他设备可以是第二设备、手机2、平板电脑等。用户可以点击可连接的其他设备中的一个，在用户点击该设备(例如为第二设备)后，表示第一设备确定通过第二设备与网络设备之间进行数据和/或控制信令的传输。即第二设备将作为第一设备的组设备。
可选的，将可以作为第一设备的组设备的其他设备的信息显示给用户时，可以显示其他设备的标识、序列号或者型号等。例如，该序列号可以为进网许可编号等。本申请实施例在此不作限制。
可选的，在本申请实施例中，另一种第一设备搜索组设备并与组设备建立连接的过程为：在第一设备的系统设置里面有个菜单，例如该菜单的名称为“连接组设备”或者其他名称等，如图5中的a图所示的为第一设备显示的主界面示意图，用户点击“设置”，出现如图5中的b图所示，用户打开“连接组设备”，意味着用户需要连接组设备，并通过组设备与网络设备之间进行数据和/或控制信令的传输。用户点击“连接组设备”后，第一设备可以自动搜索或者连接附近可用的其他设备，在连接成功后，如图5中的图c所示，第一设备可以向用户显示“组设备已经连接”的提示，用于向用户通知已经连接上了组设备。这样，可以实现用户的无感知连接组设备，提高用户体验。
可选的，在用户操作第一设备，希望第二设备作为第一设备的组成员时，进一步的，在第二设备的显示界面上，还可以向第二设备的用户显示“是否作为第一设备的组成员”的提示。如图6中所示的，第二设备的用户点击“确定”，则表示允许作为第一设备的组成员。如果不同意，则用户可以点击“取消”，则第一设备不能将该第二设备作为组成员。例如图6所示的应用场景可以是车辆编队场景，第一设备和第二设备可以是车辆编队场景中的车辆终端。
可选的，在本申请实施例中的，第一设备可以是用户使用的智能可穿戴设备，例如为：智能手表、智能手环等，第二设备可以为：用户使用的手机、便携电脑、上网本、PDA等设备。在这种情况下，在第二设备的显示界面上，可以向用户显示“是否作为第一设备的组设备”的提示信息。
可选的，在本申请实施例中，第一设备可以通过：无线局域网(wireless local area networks，WLAN)(如无线保真(wireless fidelity，Wi-Fi)网络)，蓝牙(bluetooth，BT)，调频(frequency modulation，FM)，近距离无线通信技术(near field communication，NFC)，红外技术(infrared，IR)等无线通信技术搜索可与作为组设备的其他设备。本申请实施例在此不作限制。
可选的，在第一设备自动搜索并连接其他设备作为组设备的过程中，第一设备还可根据之前与其他设备的连接情况，自动向用户推荐可作为组设备的其他设备。例如，假设第一设备经过搜索后发现：与第一设备可连接的、并且可作为组设备的其他设备与用户上次使用组设备相同，则自动连接与上次相同的组设备，即实现自动连接。
接下来对本申请实施例的应用场景进行举例说明，如图7a和图7b所示，由于在Sidelink中UE之间对等的关系，因此在Sidelink中不区分下行(uplink，简称U)和上行(downlink，简称D)，都叫做Sidelink。基于已经设置了GH-GM的关系，为了区分GH->GM还是GM->GH的链路，这里将GH->GM链路记为S-DL，将GM->GH链路记为S-UL。
如图7a所示，为场景1，D-U结构为包括下行(uplink，简称U)时间单元和上行(downlink，简称D)时间单元，其中，在D时间单元和U时间单元之间设置有间隔(Gap)。通信系统中包括：GH、GM1和GM2。其中，GM1的上行(UL)业务已经存在，GM2半途加入。GM1正与GH进行上行侧行链路(sidelink-uplink，S-UL)传输，例如GM1可以基于调度或无线资源控制(radio resource control，RRC)配置进行S-UL传输，该传输跨越多个时间单元(slot)。
根据GH的SCI调度或RRC配置，在第二个S-UL时间单元上，GM2需要进行S-UL传输。 例如在GM2之前存在一个U slot，该U slot左侧的中间方块表示为SCI，该U slot的右边表示最后一个slot，U slot的右侧中间方块表示信道状态信息干扰测量(channel state information-interference measurement，CSI-IM)导频。
在GM2发送前，需要进行载波侦听(carrier sensing，CS)。现有技术中CS如LBT会把组内GM1的信号当成干扰，会导致GM2的CS失败，进行退避，导致可能无法使能Intra-group Spatial Reuse。而本申请实施例中GM2不会把组内GM1的信号当成干扰，即不将GM1的信号的功率作为干扰，因此可以避免GM2的CS失败，从而可以使能Intra-group Spatial Reuse。
如图7b所示，为场景2，GM1和GM2在下行时间单元(例如D slot)后，紧接着同时发起上行(UL)业务，GM1与GM2同时与GH进行S-UL传输。发起业务的时刻在D slot之后的第1个U slot，例如可以基于GH调度或者RRC配置发起业务。
D-U结构为包括下行(uplink，简称U)时间单元和上行(downlink，简称D)时间单元，其中，在D时间单元和U时间单元之间设置有间隔(Gap)。例如在Gap前的最后一个D slot，该D slot左侧的中间方块表示为SCI，该D slot的右边表示最后一个slot，D slot的右侧中间方块表示CSI-IM导频。
在GM1和GM2发送数据前，需要进行CS。现有技术中CS会把D slot的信号能量当成干扰，当Group内造成的接收信号能量较强时，会导致UE CS失败，进行退避，可能导致无法使能Intra-group Spatial Reuse。而本申请实施例中GM1、GM2不会把组内GH的信号当成干扰，即不将GH的信号的功率作为干扰，因此可以避免GM1、GM2的CS失败，从而可以使能Intra-group Spatial Reuse。
在本申请的一些可选的实施例中，第一设备可以采用直接或者间接的方式确定组间干扰信号强度，从而第一设备可以根据所述组间干扰信号强度判断信道的空闲状态。其中，直接方式是指第一设备可以通过直接测量获取组间干扰信号强度，间接方式是指第一设备先得到信道总能量和信道上的参考信号的接收功率，最后通过信道总能量和参考信号的接收功率计算出组间干扰信号强度。本申请实施例中根据组间干扰信号强度可用于判断信道是否空闲，信道空闲具体指的是组间信道空闲，进而可以使用组间空闲的信道进行数据传输，以提升网络容量和资源效率。
首先对直接确定组间干扰信号强度的方式进行详细说明。以第一设备、第二设备组成一个通信系统为例，第一设备可以进行干扰信号的测量，第二设备可以发送非零功率信号。例如，非零功率信号，可以是组头发送的，也可以是其他组成员发送的，此处不做限定。
本申请实施例提供的直接测量干扰的方案主要包括如下流程：
第二设备配置第一时频资源，所述第一时频资源是干扰测量IM参考信号的配置信息；所述IM参考信号用于测量信道的干扰情况；
第二设备生成非零功率信号，向第一设备发送非零功率信号；所述非零功率信号的时频资源与所述IM参考信号的时频资源与不重叠；
第一设备在第一时间资源上测量干扰信息，确定第一干扰信息强度，其中，第一时间资源是第一设备发送数据消息或者控制消息时刻的前n个子时间单位，n取值小于或等于N/2，N为第一设备发送数据消息或控制消息的时间单位中的子时间单位个数，且N的取值 为正整数；第一干扰信息强度不包含第二干扰信息强度，第二干扰信息强度为第二设备对第一设备造成的干扰，第二设备是与第一设备具有相同组标识的设备；
当干扰信息大于预设的阈值时，第一设备判断信道处于非空闲状态；
当干扰信息小于或等于阈值时，第一设备判断信道处于空闲状态。
在本申请实施例中，第一设备在第一时频资源上进行干扰测量，以确定干扰信息，其中，第一时频资源是根据干扰测量(interference measurement，IM)参考信号的配置信息确定的，IM参考信号用于测量信道的干扰情况，IM参考信号的时频资源与非零功率信号的时频资源不重叠，非零功率信号由第二设备发送，第二设备是与第一设备具有相同组标识的设备；第一设备根据干扰信息判断信道是否处于空闲状态。本申请实施例中，IM参考信号的时频资源与非零功率信号的时频资源不重叠，该IM参考信号可用于确定第一时频资源，第一设备在该第一时频资源上进行干扰测量，从而确定干扰信息，该干扰信息是第一设备和第二设备所在组的组间干扰，该干扰信息能够用于判断出信道是否处于空闲状态，因此本申请实施例中第一设备可以判断信道是否空闲。第一设备可以是组成员，也可以是组头。不限定的，这里的时频资源也可以是时频码资源，此处不做限定。
接下来对间接方式确定组间干扰信号强度的方法进行详细说明。以第一设备、第二设备组成一个通信系统为例，第二设备可以发送第一参考信号，第一设备可以获取第一参考信号所在时间单位内的接收功率，以及测量第一参考信号所在时间单位的最后M个子时间单位内的信道总能量。
本申请实施例提供的间接测量干扰的方案主要包括如下流程：
第二设备向第一设备发送第一参考信号；
第一设备接收来自第二设备的第一参考信号，并测量第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，M的取值为正整数；
第一设备获取第一参考信号在时间单位内的接收功率；
第一设备根据第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和第一参考信号在时间单位内的接收功率确定第一干扰信号强度；
当第一干扰信号强度大于预设的阈值时，第一设备判断信道处于非空闲状态；
当第一干扰信号强度小于或等于阈值时，第一设备判断信道处于空闲状态。
在本申请实施例中，第一设备接收来自第二设备的第一参考信号，并测量第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，其中M的取值为正整数；第一设备获取第一参考信号在时间单位内的接收功率；第一设备根据第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和第一参考信号在时间单位内的接收功率确定第一干扰信号强度；第一设备根据第一干扰信号强度判断信道是否处于空闲状态。本申请实施例中，第一设备获取到了第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，该总能量是信道上第一设备接收到的总能量；第一设备获取到了第一参考信号的接收功率，该接收功率是信道上的第一参考信号的有效功率，因此通过上述的总能量和上述的接收功率可以确定第一干扰信号强度，该第一干扰信号强度是第一设备和第二设备所在组的组间干扰，该第一干扰信号强度能够用于判断信道是否处于空闲状态，因此本申请实施例中第一设备可以判断信道是否空闲。可以理解的是，上述第一设备可以是组头，第二设 备可以是组成员。或者第一设备可以组成员，第二设备可以是组头。
本申请实施例中，为了更好的利用Group，当组头具有多天线能力，或组头具有较强的SIC接收机能力，或者两个组成员的物理距离相距较远时，可以使能组内空间重用(Intra-group Spatial Reuse)来提升网络容量和资源效率。
下面结合图8详细说明本申请提供的信息传输方法，该方法可以应用在图1至图7a、图7b所示的场景中，本申请实施例在此不作限制。
应理解，下文的描述中，以第一设备、第二设备作为各个实施例的执行方法的执行主体为例，对各个实施例的方法进行说明。作为示例而非限定，执行方法的执行主体也可以是应用于第一设备、第二设备中的芯片。
如图8所示，本申请的一些实施例提供的信息传输方法，应用于通信系统，通信系统包括第一设备和第二设备，第二设备是与第一设备具有相同组标识的设备，图8所示的方法为第一设备直接进行干扰测量，以得到干扰信息的方案，该方法包括：步骤801至步骤804。
801、配置CSI-IM图案(Pattern)。
例如，组内的CSI-IM图案由组头配置。其中，同一个组内的CSI-IM图案相同，不同组的CSI-IM图案不同。
第二设备和第一设备处于同一个组内，第一设备和第二设备都可以是组成员，或者一个为组头另外一个为组成员。图8中以第二设备为组头、第一设备为组成员进行示例说明。
在本申请的一些可选的实施例中，该CSI-IM可以是本申请实施例中的一种IM参考信号，该IM参考信号的时频资源是组特定(group specific)的，即同一个组内的IM参考信号配置的时频资源图案是相同的，对于不同组的IM参考信号配置的时频资源图案是不相同的。通过上述配置，使得第一设备可以根据接收到的IM参考信号对应的时频资源确定该IM参考信号对应于哪个组。不限定的，这里的时频资源也可以是时频码资源。
802、第一设备获取到CSI-IM的配置信息。
其中，第一设备可以获取到组头配置的CSI图案，例如，第一设备可以从第二设备获取到第二设备配置的CSI图案。从而第一设备可以通过该CSI图案获取到CSI-IM的配置信息。
例如CSI-IM可以是本申请实施例中的一种IM参考信号。第一设备可以获取到IM参考信号的配置信息，IM参考信号的时频资源与非零功率信号的时频资源不重叠，或者IM参考信号的时频码资源与非零功率信号的时频码资源不重叠。其中，非零功率信号由第二设备发送，非零功率信号是指发射功率不为零的信号。
在本申请实施例中，第二设备和第一设备处于同一个组内，由于业务需求，第二设备向第二设备所在组内的其它设备发送该非零功率信号。例如第二设备可以通过广播的方式发送该非零功率信号。另外，第二设备还可以向第一设备发送该非零功率信号。因此第二设备发送的非零功率信号对于第一设备而言不是组间干扰信号，而是第一设备所在组内的有效接收能量。
需要说明的是，本申请实施例中是第一设备只需要在CSI-IM上测量组间干扰，而组内干扰可以是第一设备所在组内的组头或者其它组员造成的。因此第一设备可以先获取到 CSI-IM的配置信息，再根据该CSI-IM进行组间干扰的测量。
在本申请的一些可选的实施例中，第二设备为第一设备配置的干扰测量IM参考信号是根据第二设备的组标识确定的。
其中，不同组标识对应于不同的参考信号，第二设备根据该第二设备的组标识配置上述IM参考信号，第一设备和第二设备具有相同的组标识，第一设备根据该第一设备所在的组标识可以识别出该组对应的IM参考信号，从而使得第一设备可以识别出不同组标识对应的IM参考信号。
803、第一设备在第一时频资源上进行干扰测量，以确定干扰信息。
其中，第一时频资源是根据干扰测量IM参考信号的配置信息确定的，IM参考信号用于测量信道的干扰情况；IM参考信号的时频资源与非零功率信号的时频资源不重叠。
其中，第一设备根据该IM参考信号的配置信息确定第一时频资源，第一设备可以在第一时频资源上进行干扰测量，以确定干扰信息，该干扰信息具体可以是组间干扰信号强度。
第二设备和第一设备处于同一个组内，第一设备和第二设备可以是组成员，第一设备可以根据IM参考信号测量信道的干扰情况。如果有业务需求，第二设备可以发送非零功率信号，该非零功率信号是指发射功率不为零的信号，第一设备可以获取到IM参考信号的配置信息，IM参考信号的时频资源与非零功率信号的时频资源不重叠，此处的不重叠可以指的是IM参考信号的时频资源图案与非零功率信号的时频资源图案不相同。
在本申请的一些可选的实施例中，IM参考信号是根据第二设备的组标识确定的。即不同组标识对应于不同的IM参考信号，第二设备根据该第二设备的组标识配置上述IM参考信号，第一设备和第二设备具有相同的组标识，第一设备根据该第一设备所在的组标识可以识别出该组对应的IM参考信号，从而使得第一设备可以识别出不同组标识对应的IM参考信号。
在本申请的一些可选的实施例中，IM参考信号为零功率参考信号。
其中，IM参考信号是零功率(zero power)参考信号。此时第一设备在该第一时频资源上测量到的能量就是干扰信息，即在第一时频资源上测量得到的干扰信号为组间干扰强度，该组间干扰强度可以称为组间和系统间(inter-group/system)干扰。
在本申请的一些可选的实施例中，IM参考信号具体可以是信道状态信息参考信号(channel state information reference signal，CSI-RS)，即该IM参考信号可以表示为“CSI-RS IM”，由于CSI-RS IM是零功率的，第一设备在对应的时频资源上测量到的能量就是组间信号干扰强度。
在本申请的一些可选的实施例中，第一时频资源，在时域上只包括IM参考信号所在时间单位中的最后n个子时间单位，n取值小于或等于N/2，N为时间单位中的子时间单位个数，且N的取值为正整数。
其中，本申请实施例可以用于适配增强型先听后说(enhanced listen before talk，e-LBT)或者先听后说(listen before talk，LBT)场景，例如e-LBT增强了群组场景下的资源利用率，利用空间复用来提升效率。第一时频资源在时域上可以只包括IM参考信号所在时间单位中的最后n个子时间单位，即IM参考信号不在该时间单位的前(N-n)个子时间单元上传输。例如时间单元可以是时隙(slot)，子时间单元可以是符号(symbol)。不 限定的是，时间单元和子时间单元的实现方式不局限于上述举例，只要满足时间单元大于子时间单元的情况，都可以适用。例如，第一时频资源，在时域上只包括IM参考信号所在时间单位中的最后1个子时间单位，即n的取值可以为1，本申请实施例中不限定n的取值可以为其它值，例如n的取值为2。
本申请实施例中，第一时频资源的实现方式可以如后续图12a至图12c中任意一个图例，如图12a至图12c，示意说明了三种可能的时频资源图案，例如图12a至图12c中，每个图中所有的格子表示1个物理资源块(physical resource block，PRB)，其中包含14个符号(symbol)和12个资源单元(resource element，RE)，即14列12行。一种可选的时频资源图案，时域位置在最后一个symbol，可能的pattern的频域为4个RE，可以分布在上、中、下三种位置。
在本申请的一些可选的实施例中，IM参考信号为信道状态信息参考信号(channel state information reference signal，CSI-RS)。该CSI-RS为零功率(zero power)信号，即在对应的时频位置发送功率为0。不限定的是，本申请实施例提供的IM参考信号也可以是其它信号，此处不做限定。
在本申请的一些可选的实施例中，步骤803第一设备确定干扰信息，包括：
第一设备根据如下方式确定干扰信息：
P 2＝P 1+10log10(M 2/M 1)；
其中，P 1表示第一设备在第一时频资源上测量得到的干扰功率，P 2表示干扰信息，M 2为信道竞争机制中的测量带宽，M 1为IM参考信号所占的带宽；
当P 2大于预设的阈值时，信道处于非空闲状态；
当P 2小于或等于阈值时，信道处于空闲状态。
例如，在IM参考信号占用的RE上，进行干扰功率的平均，或者求和等，获得P1。
例如，M 1为IM参考信号所占的带宽，即第一设备根据IM参考信号的配置信息，可以得到IM参考信号所占的带宽。M 2为信道竞争机制中的测量带宽，该信道竞争机制中的测量带宽为预先规定的带宽，例如信道竞争机制中的测量带宽可以是LBT定义的测量带宽。可以理解的是，本申请实施例中带宽还可以表示为资源单元(RE)个数、频域资源大小等，此处不做限定。
可选的，M 1可以为IM参考信号所占用的RE个数，M 2可以为LBT定义测量带宽所对应的RE数。又或者，M 1可以为IM参考信号所占用的频率资源，M 2可以为LBT测量带宽所占用的频率资源。
本申请实施例中，第一设备在第一时频资源上测量得到的干扰功率P 1，按照上述公式进行转换，以得到干扰信息P 2，通过上述公式，可以获得最终的干扰信息，基于该干扰信息可以判断信道是否空闲。
804、第一设备根据干扰信息判断信道是否处于空闲状态。
在本申请实施例中，第一设备确定干扰信息之后，第一设备可以确定该第一设备的组间干扰信号强度，由此第一设备可以判断出信道是否处于空闲状态，其中，信道处于空闲状态与信道空闲为相同含义。
可选的，当所述干扰信息大于预设的阈值时，所述第一设备判断所述信道处于非空闲 状态；
当所述干扰信息小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
其中，若信道处于空闲状态，第一设备可以在该信道上进行组内空间重用，以提升资源利用率。相反的，若信道不空闲，第一设备无法在该信道上进行组内空间复用。上述举例说明中，信道空闲具体指的是组间信道空闲，进而可以使用组间空闲的信道进行数据传输，以提升网络容量和资源效率。
下面结合图9详细说明本申请提供的信息传输方法，该方法可以应用在图1至图7a、图7b所示的场景中，本申请实施例在此不作限制。
应理解，下文的描述中，以第一设备、第二设备作为各个实施例的执行方法的执行主体为例，对各个实施例的方法进行说明。作为示例而非限定，执行方法的执行主体也可以是应用于第一设备、第二设备中的芯片。
如图9所示，本申请的一些实施例提供的信息传输方法，应用于通信系统，通信系统包括第一设备和第二设备，第二设备是与第一设备具有相同组标识的设备，图9所示的方案为第一设备通过间接测量得到组间信号干扰强度的方案，该方法包括：步骤901至步骤904。
901、第二设备向第一设备发送第一参考信号。
其中，第二设备和第一设备属于同一个组，第一设备和第二设备可以都是组成员，或者一个为组头另外一个为组成员。例如第二设备可以通过广播的方式在该组内发送第一参考信号，第一设备接收该第一参考信号，并通过该第一参考信号确定信道是否空闲。详见后续实施例针对第一设备一侧的说明。
在本申请的一些可选的实施例中，第二设备可以广播侧行链路控制信息(sidelink control information，SCI)，该SCI中携带前述的第一参考信号的配置信息，例如SCI携带第一参考信号的时频资源图案(pattern)，则第一设备可以接收该SCI，并通过该SCI确定第一参考信号的时频资源图案，进而接收第二设备发送的第一参考信号。
在本申请的一些可选的实施例中，第一参考信号为解调参考信号(demodulation reference signal，DMRS)。不限定的是，本申请实施例提供的第一参考信号也可以是其它信号，只要第一设备可以测量该第一参考信号即可，此处不做限定。
在本申请的一些可选的实施例中，第一参考信号的发送方式有多种，例如第一参考信号可以承载于物理侧行链路共享信道(physical sidelink share channel，PSSCH)，或者物理侧行链路控制信道(physical sidelink control channel，PSCCH)。后续实施例分别针对PSSCH和PSCCH上的参考信号的测量过程进行举例说明。
902、第一设备接收来自第二设备的第一参考信号，并测量第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，M的取值为正整数。
在本申请实施例中，第一设备和第二设备属于同一个组，第一设备和第二设备可以都是组成员，或者一个为组头另外一个为组成员。第二设备可以发送第一参考信号，第一设备接收该第一参考信号。为了适配e-LBT或者LBT场景，第一设备在接收第一参考信号时，需要测量第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，该信道总能量是信道上第一设备接收到的总能量。其中，该时间单位是时隙(slot)，子时间单位可以 是符号。不限定的是，时间单元和子时间单元的实现方式不局限于上述举例，只要满足时间单元大于子时间单元的情况，都可以适用。例如，测量第一参考信号所在时间单位的最后1个子时间单位内的总能量，即M的取值可以为1，本申请实施例中不限定M的取值可以为其它值，例如M的取值为2。
在本申请实施例中，第一设备测量第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，该总能量具体可以是第一设备测量得到的参考信号接收强度(reference signal strength indicate，RSSI)。不限定的是，本申请实施例中第一设备在测量出前述的总能量之后，第一设备还可以对该总能量进行归一化处理，例如可以将该总能量归一化到每个资源单元(resource element，RE)。
903、第一设备获取第一参考信号在时间单位内的接收功率。
其中，第一设备在接收第一参考信号时，第一设备还可以获取该第一参考信号在时间单位内的接收功率，例如该接收功率可以是参考信号接收功率(reference signal receive power，RSRP)。第一参考信号在时间单位内的接收功率是第一设备所在组内的有效接收能量。
在本申请的一些可选的实施例中，步骤903第一设备获取第一参考信号在时间单位内的接收功率，包括：
A1、第一设备确定第一参考信号所在时间单位对应的频率资源；
A2、第一设备在第一参考信号所在时间单位对应的频率资源上进行参考信号测量，以得到第一参考信号在时间单位内的接收功率。
其中，第一设备可以通过第一参考信号的配置信息得到第一参考信号所在时间单位对应的频率资源，然后第一设备在第一参考信号所在时间单位对应的频率资源上进行参考信号测量，通过测量结果得到第一参考信号在时间单位内的接收功率。对于参考信号的测量过程，本申请实施例不再给出详细过程。本申请实施例通过上述在第一参考信号对应的频率资源上进行参考信号测量，可以获取到第一参考信号的接收功率，解决了无法获取第一参考信号的接收功率的问题。
904、第一设备根据第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和第一参考信号在时间单位内的接收功率确定第一干扰信号强度。
在本申请实施例中，第一设备通过前述步骤902确定第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，基于前述分析可知，该总能量是承载第一参考信号的信道的总能量。通过前述步骤903确定第一参考信号在时间单位内的接收功率，基于前述分析可知，该接收功率是第一设备所在组内的有效接收能量，因此通过两者就可以确定第一干扰信号强度，该第一干扰信号强度是第一设备所在组的组间干扰信号强度。
在本申请的一些可选的实施例中，步骤904第一设备根据第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和第一参考信号在时间单位内的接收功率确定第一干扰信号强度，包括：
在第一设备和第二设备所在的组内有数据传输的频率资源上，第一设备确定第一干扰信号强度等于第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，减去第一参考信号在时间单位内的接收功率；或者，
在第一设备和第二设备所在的组内没有数据传输的频率资源上，第一设备确定第一干扰信号强度等于第一参考信号所在时间单位的最后M个子时间单位内的信道总能量。
其中，第一设备所在组的频率资源可以分为两种：一种是组内有数据传输的频率资源，另一种是组内有没有数据传输的频率资源。对于组内有数据传输的频率资源的情况，通过前述的总能量和接收功率之间进行相减运算，可以得到第一干扰信号强度。对于组内有没有数据传输的频率资源的情况，第一设备接收到信道的总能量就是第一干扰信号强度。本申请实施例中通过针对组内是否有数据传输的频率资源的情况，都可以确定第一干扰信号强度。
在本申请的一些可选的实施例中，步骤904第一设备确定第一干扰信号强度之后，本申请实施例提供的信息传输方法还包括：
B1、第一设备根据参考信号与数据信号的功率对应关系对第一干扰信号强度进行调整，得到调整后的第一干扰信号强度。
其中，通过前述步骤904的说明可知，第一设备确定的第一干扰信号强度是通过第一参考信号所在最后M个子时间单元的总能量，以及第一参考信号对应的接收功率得到的，为了得到更真实的信道环境干扰情况，还需要对第一干扰信号强度进行调整，例如可以将参考信号的功率向数据(data)信号的功率拉齐，获取到参考信号与数据信号的功率对应关系，例如该对应关系可以是参考信号与数据信号之间的比例关系，该比例关系可以通过配置信息获取。最后根据参考信号与数据信号的功率对应关系对第一干扰信号强度进行调整，从而使得获取到的调整后的第一干扰信号强度能够表示更真实的信道环境干扰情况。
905、第一设备根据第一干扰信号强度判断信道是否处于空闲状态。
在本申请实施例中，第一设备确定第一干扰信号强度之后，第一设备可以确定该第一设备的组间干扰信号强度，由此第一设备可以判断出信道是否处于空闲状态，其中，信道处于空闲状态与信道空闲为相同含义。进一步的，若信道处于空闲状态，第一设备可以在该信道上进行组内空间重用，以提升资源利用率。相反的，若信道不空闲，第一设备无法在该信道上进行组内空间复用。
可选的，当所述第一信号干扰强度大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述第一信号干扰强度小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
其中，若信道处于空闲状态，第一设备可以在该信道上进行组内空间重用，以提升资源利用率。相反的，若信道不空闲，第一设备无法在该信道上进行组内空间复用。上述举例说明中，信道空闲具体指的是组间信道空闲，进而可以使用组间空闲的信道进行数据传输，以提升网络容量和资源效率。
相应的，在执行步骤B1的实现场景下，步骤905第一设备根据第一干扰信号强度判断信道是否处于空闲状态，包括：
C1、第一设备根据调整后的第一干扰信号强度判断信道是否处于空闲状态。
其中，第一设备可以根据参考信号与数据信号的功率对应关系对第一干扰信号强度进行调整，从而使得获取到的调整后的第一干扰信号强度能够表示更真实的信道环境干扰情 况，使用该调整后的第一干扰信号强度判断信道是否处于空闲状态，从而可以更准确的判断出信道是否空闲。
在本申请的一些可选的实施例中，步骤905第一设备根据第一干扰信号强度判断信道是否处于空闲状态，包括：
第一设备通过如下方式将第一干扰信号强度转换为组间干扰功率：
P 2＝P 1+10log10(M 2/M 1)；
其中，P 1表示第一干扰信号强度，P 2表示组间干扰功率，M 2为信道竞争机制中的测量带宽，M 1为第一参考信号所占的带宽；
当组间干扰功率大于预设的阈值时，第一设备确定信道处于非空闲状态；
当组间干扰功率小于或等于阈值时，第一设备确定信道处于空闲状态。
例如，M 1为IM参考信号所占的带宽，即第一设备根据IM参考信号的配置信息，可以得到IM参考信号所占的带宽。M 2为信道竞争机制中的测量带宽，该信道竞争机制中的测量带宽为预先规定的带宽，例如信道竞争机制中的测量带宽可以是LBT定义的测量带宽。
可选的，M 1可以为IM参考信号所占用的RE个数，M 2可以为LBT定义测量带宽所对应的RE数。又或者，M 1可以为IM参考信号所占用的频率资源，M 2可以为LBT测量带宽所占用的频率资源。
本申请实施例中，第一设备在第一时频资源上测量得到的干扰功率P 1，按照上述公式进行转换，以得到干扰信息P 2，通过上述公式，可以生成干扰信息，基于该干扰信息可以判断信道是否空闲。
为便于更好的理解和实施本申请实施例的上述方案，下面举例相应的应用场景来进行具体说明。
本申请实施例可以适用于增强LBT场景，终端设备在载波侦听(carrier sensing，CS)时排除组内传输产生的接收能量，只计算组间干扰强度(和系统间干扰强度)，即组间(和系统间)(inter-group/system)干扰强度，将得到的组间干扰强度用作LBT门限对比值，使能组内空间复用，提升资源利用率。
本申请实施例分为如下3个实施例来分别描述信息传输方法的具体应用场景。
为了使能组内空间复用，可以从以下多种实现方式来考虑计算组间干扰强度(或者系统间干扰强度)，一种是直接计算组间干扰强度(和系统间干扰强度)的方式，详见后续实施例一，另一种是间接计算组间干扰强度(和系统间干扰强度)的方式，详见后续实施例二和三，即通过获取信道总能量和组内有效能量，两者相减，便可以得到组间干扰强度(或者系统间干扰强度)。
首先对本申请实施例应用的系统架构进行说明，图10为本申请实施例提供的一种UE进行侧链路通信的场景示意图，在如图10所示的场景中，用户设备(user equipment，UE)之间可以通过侧链路(Sidelink)相互通信发送数据。图11为本申请实施例提供的一种侧链路通信中采用组机制的场景示意图，多个UE也以组(group)的形式来加强通信效率。在组中，组头可以充当部分基站的角色，来统筹协调整个群组的管理。UE是具备传输能力的设备，例如UE可以是终端设备，如手机、电脑、手环、智能手表、数据卡、传感器等设备。而充当组头的UE，从产品形态上来看，也是UE的一种实现方式，只是充当组头的UE 具备了部分基站的能力，具有中心控制功能、能够配置资源和接收数据的设备。
实施例一
在本申请实施例提供的一种LBT增强场景下，支持组间干扰强度(和系统间干扰强度)测量的方法为直接测量获取干扰，具体过程说明如下。
对于配置了CSI-RS IM参考信号的UE，利用IM参考信号的零功率特性，UE在对应CSI-RS IM的图案上测量得到的信号能量，即为组间干扰强度(和系统间干扰强度)。具体的，第一设备获取IM参考信号的第一时频资源，由于IM参考信号的功率为零，则在第一时频资源上测量得到总功率，该总功率即为组间干扰(和系统间干扰)，记为P 1。
CSI-RS IM的时频资源的图案是组特定(specific)的。一种可选的方法包括：组内的时频资源图案配置一致，不同组的CSI-RS IM时频资源图案错开。时频资源的图案整体遵循新无线(new radio，NR)系统已有的CSI-RS IM的时频资源的图案，适配e-LBT的应用场景。可选的，该时域资源可以位于每个时隙的最后1个symbol。例如，CSI-RS IM时频资源的图案与NR的目前CSI-RS IM图案1相同。
如图12a至图12c，示意说明了三种可能的时频资源图案，例如在图12a至图12c中，每个图中所有的格子表示1个物理资源块(physical resource block，PRB)，其中包含14个symbol和12个RE，即14列12行。一种可选的时频资源图案中，时域位置在最后一个symbol，可能的pattern的频域为4个RE，可以分布在上、中、下三种位置。其中，Symbol是时间单位，RE是频域单位。
可选的，时频资源图案的频域带宽具有多种实现方式，例如，时频资源图案的频域带宽可以是GH和GM所支持的所有带宽。又如，时频资源图案的频域带宽可以是UE特定的子信道(specific subchannel)的带宽，或者时频资源图案的频域带宽是组特定的子信道的带宽。
可选的，P 1与LBT门限P 2转换过程如下：
统一归一化到LBT门限：P 2＝P 1+10log10(M 2/M 1)。
上述公式中各个参数的含义详见前述实施例的说明。
例如，当前协议中LBT的门限都是以LBT带宽(如20M)为单位，M 2为LBT定义的测量带宽所占的频谱资源，M1为CSI-IM实际测量带宽所占的频谱资源。
可选的，M 1可以为IM参考信号所占用的RE个数，M 2可以为LBT定义测量带宽所对应的RE数。又或者，M 1可以为IM参考信号所占用的频率资源，M 2可以为LBT测量带宽所占用的频率资源。
实施例二
在本申请实施例提供的一种LBT增强场景下，支持组间干扰强度(和系统间干扰强度)测量的方法为间接获取干扰，具体过程说明如下。
解码(Decode)组内的SCI，测量组内PSSCH的DMRS的RSRP。例如可以解调SCI，得到DMRS位置，对DMRS的信道进行估计得到信道信息H，对H求模方，从而可以得到RSRP。
基于测量得到的信道总能量，减去组内的有效能量得到的即为组间干扰强度(和系统间干扰强度)，其中，组内的有效能量指的是组内的DMRS RSRP。
具体过程如下，在组内广播SCI，任意UE都能检测该SCI。若无法检测得到本组的SCI， 则表示组间干扰很严重。
计算方式如下，在有组内数据传输的频带上，根据SCI中指示的PSSCH DMRS图案，测量DMRS的RSRP。若PSSCH具有多个DMRS符号，可以对多个符号进行线性平均；RSRP归一化到每RE。例如一个RB中有12个RE。一个数据调度的RB个数根据业务来定，例如RB个数可能是1个，也可能是多个，此处不做限定。
其中，DMRS的发送功率可能和数据(Data)的发送功率不一致。为了保证测量得到的功率表征的是Data功率，因此DMRS的功率需要向Data功率拉齐。以保障测量到的信号能量代表的是数据的能量。
在没有组内数据传输的频带上，SumDmrsRsrp为0，测量到的RSSI即为组间或系统间组间干扰强度(和系统间干扰强度)；归一化到每RE。
在slot的最后一个符号测量总的能量RSSI，归一化到每RE。为了进行LBT，可以限定需要在最后1个slot测量总能量。
组间/系统间干扰记为P 1，为P 1＝RSSI–SumDmrsRsrp。
其中，SumDmrsRsrp为组内所有DMRS端口(Port)的RSRP之和。RSSI是测量得到的信道总能量，包含组内有效能量和组间/系统间干扰的总能量。
如图13所示，为本申请实施例提供的一种计算组间干扰信号强度的应用场景示意图，一个UE可能被配置了多个DMRS，例如图13中的2列表示在两个端口上测量DMRS图13表示了3组正交的DMRS Port。
可选的，P 1与LBT门限P 2转换过程如下：
统一归一化到LBT门限：P 2＝P 1+10log10(M 2/M 1)。
上述公式中各个参数的含义详见前述实施例的说明。
例如，当前协议中LBT的门限都是以LBT带宽(如20M)为单位，M 2为LBT定义的测量带宽所占的频谱资源，M 1为CSI-IM实际测量带宽所占的频谱资源。
可选的，M 1可以为IM参考信号所占用的RE个数，M 2可以为LBT定义测量带宽所对应的RE数。又或者，M 1可以为IM参考信号所占用的频率资源，M 2可以为LBT测量带宽所占用的频率资源。
实施例三
在本申请实施例提供的一种LBT增强场景下，支持组间干扰强度(或者系统间干扰强度)测量的方法为间接获取干扰，具体过程说明如下。
解码组内SCI，测量组内PSCCH的DMRS RSRP，基于测量得到的信道总能量，减去组内的有效能量，得到的即为组间干扰强度(或者系统间干扰强度)。
实施例三与实施例二的区别在于，实施例二是测量组内PSSCH的DMRS RSRP，但是实施例三是测量组内PSCCH的DMRS RSRP。
具体过程如下，组内广播SCI，任意UE都能检测该SCI。若无法检测得到本组的SCI，则表示组间干扰很严重了。
计算方式如下，在有组内数据传输的频带上，根据检测SCI得到的PSCCH DMRS RSRP对多个符号，进行线性平均；RSRP归一化到每RE。PSCCH DMRS的功率需要向PSSCH拉齐，保障测量到的信号能量代表的是PSSCH的能量。
在没有组内数据传输的频带上，SumDmrsRsrp为0，测量到的RSSI即为组间干扰强度(或者系统间干扰强度)；归一化到每RE。
在slot的最后一个symbol测量总的能量RSSI，归一化到每RE。
组间/系统间干扰记为P 1，为P 1＝RSSI–SumDmrsRsrp。
其中，SumDmrsRsrp为组内所有DMRS端口(Port)的RSRP之和。RSSI是测量得到的信道总能量，包含组内有效能量和组间/系统间干扰的总能量。
如图14所示，为本申请实施例提供的一种计算组间干扰信号强度的应用场景示意图，3个箭头所指的深色方块是PSCCH的DMRS，浅色方块表示PSCCH。
可选的，P 1与LBT门限P 2转换过程如下：
统一归一化到LBT门限：P 2＝P 1+10log10(M 2/M 1)。
上述公式中各个参数的含义详见前述实施例的说明。
例如，当前协议中LBT的门限都是以LBT带宽(如20M)为单位，M 2为LBT定义的测量带宽所占的频谱资源，M 1为CSI-IM实际测量带宽所占的频谱资源。
可选的，M 1可以为IM参考信号所占用的RE个数，M 2可以为LBT定义测量带宽所对应的RE数。又或者，M 1可以为IM参考信号所占用的频率资源，M 2可以为LBT测量带宽所占用的频率资源。
通过前述举例说明可知，为了使能组内空间复用，增强了LBT的方式，在进行干扰测量时，排除组内能量造成的干扰，只计算组间干扰强度(或者系统间干扰强度)，用作LBT门限对比值。提升网络容量和资源效率。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本申请所必须的。
为便于更好的实施本申请实施例的上述方案，下面还提供用于实施上述方案的相关装置。
如图15所示，为本申请实施例提供的一种第一设备1500，第一设备1500包括：
确定模块1501，用于在第一时频资源上进行干扰测量，以确定干扰信息，其中，所述第一时频资源是根据干扰测量IM参考信号的配置信息确定的，所述IM参考信号用于测量信道的干扰情况；所述IM参考信号的时频资源与非零功率信号的时频资源不重叠，所述非零功率信号由第二设备发送，所述第二设备是与所述第一设备具有相同组标识的设备；
判断模块1502，用于当所述干扰信息大于预设的阈值时，判断所述信道处于非空闲状态；当所述干扰信息小于或等于所述阈值时，判断所述信道处于空闲状态。
在申请的一些实施例中，所述IM参考信号是根据所述第二设备的组标识确定的。
在申请的一些实施例中，所述IM参考信号为零功率参考信号。
在申请的一些实施例中，所述第一时频资源，在时域上只包括所述IM参考信号所在时间单位中的最后n个子时间单位，所述n取值小于或等于N/2，所述N为所述时间单位中的子时间单位个数，且所述N的取值为正整数。
在申请的一些实施例中，所述确定模块，用于根据如下方式确定所述干扰信息：
P 2＝P 1+10log10(M 2/M 1)；
其中，所述P 1表示所述第一设备在所述第一时频资源上测量得到的干扰功率，所述P 2表示所述干扰信息，所述M 2为信道竞争机制中的测量带宽，所述M 1为所述IM参考信号所占的带宽；
当所述P 2大于预设的阈值时，所述信道处于非空闲状态；
当所述P 2小于或等于所述阈值时，所述信道处于空闲状态。
如图16所示，为本申请实施例提供的一种第二设备1600，第二设备1600包括：
获取模块1601，用于生成非零功率信号，所述非零功率信号的时频资源与所述第二设备为第一设备配置的干扰测量IM参考信号的时频资源不重叠；
发送模块1602，用于向第一设备发送所述非零功率信号，所述第二设备是与所述第一设备具有相同组标识的设备。
在申请的一些实施例中，所述第二设备为第一设备配置的干扰测量IM参考信号是根据所述第二设备的组标识确定的。
如图17所示，为本申请实施例提供的一种第一设备1700，第一设备1700属于通信系统，所述通信系统还包括：第二设备，所述第二设备是与所述第一设备具有相同组标识的设备，所述第一设备1700包括：
接收模块1701，用于接收来自所述第二设备的第一参考信号；
测量模块1702，测量所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，所述M的取值为正整数；
确定模块1703，用于获取所述第一参考信号在所述时间单位内的接收功率；根据所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和所述第一参考信号在所述时间单位内的接收功率确定第一干扰信号强度；
判断模块1704，用于当所述第一干扰信号强度大于预设的阈值时，判断所述信道处于非空闲状态；当所述第一干扰信号强度小于或等于所述阈值时，判断所述信道处于空闲状态。
在申请的一些实施例中，所述确定模块，用于所述第一设备确定所述第一参考信号所在时间单位对应的频率资源；在所述第一参考信号所在时间单位对应的频率资源上进行参考信号测量，以得到所述第一参考信号在所述时间单位内的接收功率。
在申请的一些实施例中，所述确定模块，用于在所述第一设备和所述第二设备所在的组内有数据传输的频率资源上，确定所述第一干扰信号强度等于所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，减去所述第一参考信号在所述时间单位内的接收功率；或者，在所述第一设备和所述第二设备所在的组内没有数据传输的频率资源上，确定所述第一干扰信号强度等于所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量。
在申请的一些实施例中，所述确定模块，用于根据参考信号与数据信号的功率对应关系对所述第一干扰信号强度进行调整，得到调整后的第一干扰信号强度；
所述判断模块，用于根据所述调整后的第一干扰信号强度判断信道是否处于空闲状态。
在申请的一些实施例中，所述第一参考信号为信道解调第一参考信号DMRS。
在申请的一些实施例中，所述第一参考信号承载于物理侧行链路共享信道，或者物理侧行链路控制信道。
在申请的一些实施例中，所述确定模块，用于通过如下方式将所述第一干扰信号强度转换为组间干扰功率：
P 2＝P 1+10log10(M 2/M 1)；
其中，所述P 1表示所述第一干扰信号强度，所述P 2表示所述组间干扰功率，所述M 2为信道竞争机制中的测量带宽，所述M 1为所述第一参考信号所占的带宽；
所述判断模块，用于当所述组间干扰功率大于预设的阈值时，确定所述信道处于非空闲状态；当所述组间干扰功率小于或等于所述阈值时，确定所述信道处于空闲状态。
应理解，上述只是为了帮助本领域技术人员更好地理解本申请实施例，而非要限制本申请实施例的范围。本领域技术人员根据所给出的上述示例，显然可以进行各种等价的修改或变化，例如，上述方法中的各个实施例中某些步骤可以是不必须的，或者可以新加入某些步骤等。或者上述任意两种或者任意多种实施例的组合。这样的修改、变化或者组合后的方案也落入本申请实施例的范围内。
还应理解，上文对本申请实施例的描述着重于强调各个实施例之间的不同之处，未提到的相同或相似之处可以互相参考，为了简洁，这里不再赘述。
还应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
还应理解，本申请实施例中，“预先设定”、“预先定义”可以通过在设备(例如，包括终端和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定。
还应理解，本申请实施例中的方式、情况、类别以及实施例的划分仅是为了描述的方便，不应构成特别的限定，各种方式、类别、情况以及实施例中的特征在不矛盾的情况下可以相结合。
还应理解，在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
以上结合图8至图14对本申请实施例提供的方法做了详细说明。以下，结合图18至图19对本申请实施例的通信装置进行详细说明。
图18示出了本申请实施例的通信装置800的示意性框图。
如图18所示，通信装置800可以包括处理器810、存储器820、收发器830和总线系统840。通信装置800的各个组件通过总线系统840耦合在一起，其中总线系统840除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图18中将各种总线都标为总线系统840。为便于表示，图18中仅是示意性画出。在一种可能的实现方式中，该通信装置800可以对应上述步骤802至804、或者步骤902至905描述的第一设备，也可以是应用于第一设备的芯片或组件，并且，该通信装置800中各模块或单元分别用于执行上述步骤802至804、或者步骤902至905中第一设备所执 行的各动作或处理过程。或者，该通信装置800可以对应上述步骤801、或者步骤901描述的第二设备，也可以是应用于第二设备的芯片或组件，并且，该通信装置800中各模块或单元分别用于执行上述801、或者步骤901描述的第二设备所执行的各动作或处理过程。
应理解，通信装置800中各单元执行上述相应步骤的具体过程请参照前文中结合步骤802至804、或者步骤902至905、以及图15或图17所示的中相关实施例的第一设备相关的描述，为了简洁，这里不加赘述。或者，通信装置800中各单元执行上述相应步骤的具体过程请参照前文中结合步骤801、或者步骤901、以及图16所示的中相关实施例的第二设备相关的描述，为了简洁，这里不加赘述。
可选的，收发器830可以包括接收单元(模块)和发送单元(模块)，用于执行前述步骤802至804、或者步骤902至905、以及图15或图17所示的实施例中第一设备接收信息和发送信息的步骤。或者，用于执行前述步骤801、或者步骤901、以及图16所示的实施例中第二设备接收信息和发送信息的步骤。
应理解，收发器830可以是收发器、输入/输出接口或接口电路。
图18所示的通信装置800或图18所示的通信装置800能够实现前述本申请提供的方法的各个实施例中第一设备或第二设备执行的步骤。类似的描述可以参考前述对应的方法中的描述。为避免重复，这里不再赘述。
还应理解，图18所示的通信装置800可以为终端设备。
还应理解，以上通信装置中单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且通信装置中的单元可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分单元以软件通过处理元件调用的形式实现，部分单元以硬件的形式实现。例如，各个单元可以为单独设立的处理元件，也可以集成在装置的某一个芯片中实现，此外，也可以以程序的形式存储于存储器中，由装置的某一个处理元件调用并执行该单元的功能。这里该处理元件又可以称为处理器，可以是一种具有信号处理能力的集成电路。在实现过程中，上述方法的各步骤或以上各个单元可以通过处理器元件中的硬件的集成逻辑电路实现或者以软件通过处理元件调用的形式实现。
在一个例子中，以上任一通信装置中的单元可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个专用集成电路(application specific integrated circuit，ASIC)，或，一个或多个数字信号处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)，或这些集成电路形式中至少两种的组合。再如，当装置中的单元可以通过处理元件调度程序的形式实现时，该处理元件可以是通用处理器，例如中央处理器(central processing unit，CPU)或其它可以调用程序的处理器。再如，这些单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
图19为本申请提供的一种终端设备900的结构示意图。上述的通信装置800可以配置在该终端设备900中。或者，该通信装置800本身可以即为该终端设备900。或者说，该终端设备900可以执行上述步骤802至804、或者步骤902至905中第一设备执行的动作。或者，该终端设备900可以执行上述步骤801、或者步骤901中第二设备执行的动作。
为了便于说明，图19仅示出了终端设备的主要部件。如图19所示，终端设备900包括处理器、存储器、控制电路、天线以及输入输出装置。
处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端设备进行控制，执行软件程序，处理软件程序的数据，例如用于支持终端设备执行上述传输预编码矩阵的指示方法实施例中所描述的动作。存储器主要用于存储软件程序和数据，例如存储上述实施例中所描述的码本。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当终端设备开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图19仅示出了一个存储器和处理器。在实际的终端设备中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本申请实施例对此不做限制。
例如，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备进行控制，执行软件程序，处理软件程序的数据。图19中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备可以包括多个中央处理器以增强其处理能力，终端设备的各个部件可以通过各种总线连接。该基带处理器也可以表述为基带处理电路或者基带处理芯片。该中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
示例性的，在本申请实施例中，可以将具有收发功能的天线和控制电路视为终端设备900的收发单元901，将具有处理功能的处理器视为终端设备900的处理单元902。如图19所示，终端设备900包括收发单元901和处理单元902。收发单元也可以称为收发器、收发机、收发装置等。可选的，可以将收发单元901中用于实现接收功能的器件视为接收单元，将收发单元901中用于实现发送功能的器件视为发送单元，即收发单元501包括接收单元和发送单元。示例性的，接收单元也可以称为接收机、接收器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
应理解，本申请实施例中，该处理器可以为中央处理单元(central processing unit，CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程 门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，RAM)可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
上述实施例，可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行该计算机指令或计算机程序时，全部或部分地产生按照本申请实施例的流程或功能。该计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质。半导体介质可以是固态硬盘。
本实施例还提供了一种计算机存储介质，该计算机存储介质中存储有计算机指令，当该计算机指令在通信装置上运行时，使得通信装置执行上述相关方法步骤实现上述实施例中的信令无线承载配置的方法和侧行链路数据包传输的方法。
本实施例还提供了一种计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行上述相关步骤，以实现上述实施例中的信令无线承载配置的方法和侧行链路数据包传输的方法。
另外，本申请的实施例还提供了一种装置，该装置具体可以是芯片，组件或模块，该装置可包括相连的处理器和存储器；其中，存储器用于存储计算机执行指令，当装置运行时，处理器可执行存储器存储的计算机执行指令，以使芯片执行上述各方法实施例中的信令无线承载配置的方法和侧行链路数据包传输的方法。
其中，本实施例提供的通信装置、计算机存储介质、计算机程序产品或芯片均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
结合以上，本申请还提供了如下实施例：
实施例1：一种信息传输方法，该方法应用于第一设备，该方法包括：
所述第一设备在第一时频资源上进行干扰测量，以确定干扰信息，其中，所述第一时频资源是根据干扰测量IM参考信号的配置信息确定的，所述IM参考信号用于测量信道的干扰情况；所述IM参考信号的时频资源与非零功率信号的时频资源不重叠，所述非零功率信号由第二设备发送，所述第二设备是与所述第一设备具有相同组标识的设备；
当所述干扰信息大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述干扰信息小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
实施例2、根据实施例1所述的方法，其中，所述IM参考信号是根据所述第二设备的组标识确定的。
实施例3、根据实施例1至2中任一项所述的方法，其中，所述IM参考信号为零功率参考信号。
实施例4、根据实施例1至3中任一项所述的方法，其中，所述第一时频资源，在时域上只包括所述IM参考信号所在时间单位中的最后n个子时间单位，所述n取值小于或等于N/2，所述N为所述时间单位中的子时间单位个数，且所述N的取值为正整数。
实施例5、根据实施例1至4中任一项所述的方法，其中，所述第一设备确定干扰信息，包括：
所述第一设备根据如下方式确定所述干扰信息：
P 2＝P 1+10log10(M 2/M 1)；
其中，所述P 1表示所述第一设备在所述第一时频资源上测量得到的干扰功率，所述P 2表示所述干扰信息，所述M 2为信道竞争机制中的测量带宽，所述M 1为所述IM参考信号所占的带宽；
当所述P 2大于所述阈值时，所述信道处于非空闲状态；
当所述P 2小于或等于所述阈值时，所述信道处于空闲状态。
实施例6、一种信息传输方法，其中，所述方法应用于第二设备，所述方法包括：
所述第二设备生成非零功率信号，所述非零功率信号的时频资源与所述第二设备为第一设备配置的干扰测量IM参考信号的时频资源不重叠；
所述第二设备向第一设备发送所述非零功率信号，所述第二设备是与所述第一设备具有相同组标识的设备。
实施例7、根据实施例6所述的方法，其中，所述第二设备为第一设备配置的干扰测量IM参考信号是根据所述第二设备的组标识确定的。
实施例8、一种信息传输方法，其中，所述方法应用于通信系统中的第一设备，所述通信系统还包括：第二设备，所述第二设备是与所述第一设备具有相同组标识的设备，所述方法包括：
所述第一设备接收来自所述第二设备的第一参考信号，并测量所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，所述M的取值为正整数；
所述第一设备获取所述第一参考信号在所述时间单位内的接收功率；
所述第一设备根据所述第一参考信号所在时间单位的最后M个子时间单位内的信道总 能量和所述第一参考信号在所述时间单位内的接收功率确定第一干扰信号强度；
当所述第一干扰信号强度大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述第一干扰信号强度小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
实施例9、根据实施例8所述的方法，其中，所述第一设备获取所述第一参考信号在所述时间单位内的接收功率，包括：
所述第一设备确定所述第一参考信号所在时间单位对应的频率资源；
所述第一设备在所述第一参考信号所在时间单位对应的频率资源上进行参考信号测量，以得到所述第一参考信号在所述时间单位内的接收功率。
实施例10、根据实施例8或9所述的方法，其中，所述第一设备根据所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和所述第一参考信号在所述时间单位内的接收功率确定所述第一干扰信号强度，包括：
在所述第一设备和所述第二设备所在的组内有数据传输的频率资源上，所述第一设备确定所述第一干扰信号强度等于所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，减去所述第一参考信号在所述时间单位内的接收功率；或者，
在所述第一设备和所述第二设备所在的组内没有数据传输的频率资源上，所述第一设备确定所述第一干扰信号强度等于所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量。
实施例11、根据实施例8至10中任一项所述的方法，其中，所述第一设备确定第一干扰信号强度之后，所述方法还包括：
所述第一设备根据参考信号与数据信号的功率对应关系对所述第一干扰信号强度进行调整，得到调整后的第一干扰信号强度；
所述方法，还包括：
所述第一设备根据所述调整后的第一干扰信号强度判断信道是否处于空闲状态。
实施例12、根据实施例8至11中任一项所述的方法，其中，所述第一参考信号为信道解调第一参考信号DMRS。
实施例13、根据实施例8至12中任一项所述的方法，其中，所述第一参考信号承载于物理侧行链路共享信道，或者物理侧行链路控制信道。
实施例14、根据实施例8至13中任一项所述的方法，其中，所述方法，还包括：
所述第一设备通过如下方式将所述第一干扰信号强度转换为组间干扰功率：
P 2＝P 1+10log10(M 2/M 1)；
其中，所述P 1表示所述第一干扰信号强度，所述P 2表示所述组间干扰功率，所述M 2为信道竞争机制中的测量带宽，所述M 1为所述第一参考信号所占的带宽；
当所述组间干扰功率大于预设的阈值时，所述第一设备确定所述信道处于非空闲状态；
当所述组间干扰功率小于或等于所述阈值时，所述第一设备确定所述信道处于空闲状态。
实施例15、一种信息传输方法，其中，所述方法应用于第一设备，所述方法包括：
所述第一设备确定所述第一设备发送消息所用的信道的第一干扰信号强度，其中，所述第一干扰信号强度不包含第二干扰信号强度，所述第二干扰信号强度为第二设备对所述第一设备造成的干扰信号强度，所述第二设备是与所述第一设备具有相同组标识的设备；
当所述干扰信息大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述干扰信息小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
实施例16、一种信息传输方法，其中，所述方法应用于通信系统，所述通信系统包括第一设备和第二设备，所述第二设备是与所述第一设备具有相同组标识的设备，所述方法包括：
所述第二设备配置第一时频资源，所述第一时频资源是干扰测量IM参考信号的配置信息；所述IM参考信号用于测量信道的干扰情况；
所述第二设备生成非零功率信号，并向第一设备发送所述非零功率信号；
所述第一设备在第一时频资源上进行干扰测量，以确定干扰信息，其中，所述第一时频资源是根据干扰测量IM参考信号的配置信息确定的，所述IM参考信号用于测量信道的干扰情况；所述IM参考信号的时频资源与所述非零功率信号的时频资源不重叠；
当所述第一干扰信号强度大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述第一干扰信号强度小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
实施例17、一种信息传输方法，所述方法应用于通信系统，所述通信系统包括：第一设备和第二设备，所述第二设备是与所述第一设备具有相同组标识的设备，所述方法包括：
所述第二设备向所述第一设备发送第一参考信号；
所述第一设备接收来自所述第二设备的所述第一参考信号，并测量所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，所述M的取值为正整数；
所述第一设备获取所述第一参考信号在所述时间单位内的接收功率；
所述第一设备根据所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和所述第一参考信号在所述时间单位内的接收功率确定第一干扰信号强度；
当所述第一干扰信号强度大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
当所述第一干扰信号强度小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
实施例18、一种通信装置，其中，所述通信装置为第一设备，所述装置包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合：
所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述通信装置执行如实施例1至5中任一项所述的方法。
实施例19、一种通信装置，其中，所述通信装置为第二设备，所述装置包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合：
所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述通信装置执行如实施例6至7中任一项所述的方法。
实施例20、一种通信系统，其中，所述通信系统包括：如实施例18所述的第一设备，和如实施例19所述的第二设备。
实施例21、一种通信装置，其中，所述通信装置为第一设备，所述装置包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合：
所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述通信装置执行如实施例8至14中任一项所述的方法。
实施例22、一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序或指令，当计算机读取并执行所述计算机程序或指令时，使得计算机执行如实施例1-5、或者实施例6-7、或者实施例8-14、或者实施例15、或者实施例16、或者实施例17中任意一项所述的方法。
实施例23、一种芯片，其中，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的通信设备执行如实施例1-5、或者实施例6-7、或者实施例8-14、或者实施例15、或者实施例16、或者实施例17中任意一项所述的方法。
通过以上实施方式的描述，所属领域的技术人员可以了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个装置，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖 在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (23)

  1. 一种信息传输方法，其特征在于，所述方法应用于第一设备，所述方法包括：
    所述第一设备在第一时频资源上进行干扰测量，以确定干扰信息，其中，所述第一时频资源是根据干扰测量IM参考信号的配置信息确定的，所述IM参考信号用于测量信道的干扰情况；所述IM参考信号的时频资源与非零功率信号的时频资源不重叠，所述非零功率信号由第二设备发送，所述第二设备是与所述第一设备具有相同组标识的设备；
    当所述干扰信息大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
    当所述干扰信息小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
  2. 根据权利要求1所述的方法，其特征在于，所述IM参考信号是根据所述第二设备的组标识确定的。
  3. 根据权利要求1至2中任一项所述的方法，其特征在于，所述IM参考信号为零功率参考信号。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述第一时频资源，在时域上只包括所述IM参考信号所在时间单位中的最后n个子时间单位，所述n取值小于或等于N/2，所述N为所述时间单位中的子时间单位个数，且所述N的取值为正整数。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述第一设备确定干扰信息，包括：
    所述第一设备根据如下方式确定所述干扰信息：
    P 2＝P 1+10log10(M 2/M 1)；
    其中，所述P 1表示所述第一设备在所述第一时频资源上测量得到的干扰功率，所述P 2表示所述干扰信息，所述M 2为信道竞争机制中的测量带宽，所述M 1为所述IM参考信号所占的带宽；
    当所述P 2大于所述阈值时，所述信道处于非空闲状态；
    当所述P 2小于或等于所述阈值时，所述信道处于空闲状态。
  6. 一种信息传输方法，其特征在于，所述方法应用于第二设备，所述方法包括：
    所述第二设备生成非零功率信号，所述非零功率信号的时频资源与所述第二设备为第一设备配置的干扰测量IM参考信号的时频资源不重叠；
    所述第二设备向第一设备发送所述非零功率信号，所述第二设备是与所述第一设备具有相同组标识的设备。
  7. 根据权利要求6所述的方法，其特征在于，所述IM参考信号是根据所述第二设备的组标识确定的。
  8. 一种信息传输方法，其特征在于，所述方法应用于通信系统中的第一设备，所述通信系统还包括：第二设备，所述第二设备是与所述第一设备具有相同组标识的设备，所述方法包括：
    所述第一设备接收来自所述第二设备的第一参考信号，并测量所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，所述M的取值为正整数；
    所述第一设备获取所述第一参考信号在所述时间单位内的接收功率；
    所述第一设备根据所述第一参考信号所在时间单位的最后M个子时间单位内的信道总 能量和所述第一参考信号在所述时间单位内的接收功率确定第一干扰信号强度；
    当所述第一干扰信号强度大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
    当所述第一干扰信号强度小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
  9. 根据权利要求8所述的方法，其特征在于，所述第一设备获取所述第一参考信号在所述时间单位内的接收功率，包括：
    所述第一设备确定所述第一参考信号所在时间单位对应的频率资源；
    所述第一设备在所述第一参考信号所在时间单位对应的频率资源上进行参考信号测量，以得到所述第一参考信号在所述时间单位内的接收功率。
  10. 根据权利要求8或9所述的方法，其特征在于，所述第一设备根据所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和所述第一参考信号在所述时间单位内的接收功率确定所述第一干扰信号强度，包括：
    在所述第一设备和所述第二设备所在的组内有数据传输的频率资源上，所述第一设备确定所述第一干扰信号强度等于所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，减去所述第一参考信号在所述时间单位内的接收功率；或者，
    在所述第一设备和所述第二设备所在的组内没有数据传输的频率资源上，所述第一设备确定所述第一干扰信号强度等于所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量。
  11. 根据权利要求8至10中任一项所述的方法，其特征在于，所述第一设备确定第一干扰信号强度之后，所述方法还包括：
    所述第一设备根据参考信号与数据信号的功率对应关系对所述第一干扰信号强度进行调整，得到调整后的第一干扰信号强度；
    所述方法，还包括：
    所述第一设备根据所述调整后的第一干扰信号强度判断信道是否处于空闲状态。
  12. 根据权利要求8至11中任一项所述的方法，其特征在于，所述第一参考信号为信道解调第一参考信号DMRS。
  13. 根据权利要求8至12中任一项所述的方法，其特征在于，所述第一参考信号承载于物理侧行链路共享信道，或者物理侧行链路控制信道。
  14. 根据权利要求8至13中任一项所述的方法，其特征在于，所述方法，还包括：
    所述第一设备通过如下方式将所述第一干扰信号强度转换为组间干扰功率：
    P 2＝P 1+10log10(M 2/M 1)；
    其中，所述P 1表示所述第一干扰信号强度，所述P 2表示所述组间干扰功率，所述M 2为信道竞争机制中的测量带宽，所述M 1为所述第一参考信号所占的带宽；
    当所述组间干扰功率大于预设的阈值时，所述第一设备确定所述信道处于非空闲状态；
    当所述组间干扰功率小于或等于所述阈值时，所述第一设备确定所述信道处于空闲状态。
  15. 一种信息传输方法，其特征在于，所述方法应用于第一设备，所述方法包括：
    所述第一设备确定所述第一设备发送消息所用的信道的第一干扰信息强度，其中，所述第一干扰信息强度不包含第二干扰信息强度，所述第二干扰信息强度为第二设备对所述第一设备造成的干扰，所述第二设备是与所述第一设备具有相同组标识的设备；
    当所述干扰信息大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
    当所述干扰信息小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
  16. 一种信息传输方法，其特征在于，所述方法应用于通信系统，所述通信系统包括第一设备和第二设备，所述第二设备是与所述第一设备具有相同组标识的设备，所述方法包括：
    所述第二设备配置第一时频资源，所述第一时频资源是干扰测量IM参考信号的配置信息；所述IM参考信号用于测量信道的干扰情况；
    所述第二设备生成非零功率信号，向第一设备发送所述非零功率信号；所述非零功率信号的时频资源与所述IM参考信号的时频资源与不重叠；
    所述第一设备在第一时频资源上进行干扰测量，以确定干扰信息；
    当所述第一干扰信号强度大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
    当所述第一干扰信号强度小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
  17. 一种信息传输方法，其特征在于，所述方法应用于通信系统，所述通信系统包括：第一设备和第二设备，所述第二设备是与所述第一设备具有相同组标识的设备，所述方法包括：
    所述第二设备向所述第一设备发送第一参考信号；
    所述第一设备接收来自所述第二设备的所述第一参考信号，并测量所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量，所述M的取值为正整数；
    所述第一设备获取所述第一参考信号在所述时间单位内的接收功率；
    所述第一设备根据所述第一参考信号所在时间单位的最后M个子时间单位内的信道总能量和所述第一参考信号在所述时间单位内的接收功率确定第一干扰信号强度；
    当所述第一干扰信号强度大于预设的阈值时，所述第一设备判断所述信道处于非空闲状态；
    当所述第一干扰信号强度小于或等于所述阈值时，所述第一设备判断所述信道处于空闲状态。
  18. 一种通信装置，其特征在于，所述通信装置为第一设备，所述装置包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合：
    所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述通信装置执行如权利要求1至5中任一项所述的方法。
  19. 一种通信装置，其特征在于，所述通信装置为第二设备，所述装置包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合：
    所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述通信装置执行如权利要求6至7中任一项所述的方法。
  20. 一种通信系统，其特征在于，所述通信系统包括：如权利要求18所述的第一设备，和如权利要求19所述的第二设备。
  21. 一种通信装置，其特征在于，所述通信装置为第一设备，所述装置包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合：
    所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述通信装置执行如权利要求8至14中任一项所述的方法。
  22. 一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序或指令，当计算机读取并执行所述计算机程序或指令时，使得计算机执行如权利要求1-5、或者权利要求6-7、或者权利要求8-14、或者权利要求15、或者权利要求16、或者权利要求17中任意一项所述的方法。
  23. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的通信设备执行如权利要求1-5、或者权利要求6-7、或者权利要求8-14、或者权利要求15、或者权利要求16、或者权利要求17中任意一项所述的方法。
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