WO2020061913A1 - 反馈信息的发送和接收方法以及装置 - Google Patents

反馈信息的发送和接收方法以及装置 Download PDF

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Publication number
WO2020061913A1
WO2020061913A1 PCT/CN2018/107996 CN2018107996W WO2020061913A1 WO 2020061913 A1 WO2020061913 A1 WO 2020061913A1 CN 2018107996 W CN2018107996 W CN 2018107996W WO 2020061913 A1 WO2020061913 A1 WO 2020061913A1
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Prior art keywords
side link
information
link control
feedback information
data
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PCT/CN2018/107996
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English (en)
French (fr)
Inventor
张健
纪鹏宇
李国荣
张磊
王昕�
Original Assignee
富士通株式会社
张健
纪鹏宇
李国荣
张磊
王昕�
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Application filed by 富士通株式会社, 张健, 纪鹏宇, 李国荣, 张磊, 王昕� filed Critical 富士通株式会社
Priority to PCT/CN2018/107996 priority Critical patent/WO2020061913A1/zh
Publication of WO2020061913A1 publication Critical patent/WO2020061913A1/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

Definitions

  • Embodiments of the present invention relate to the field of communications technologies, and in particular, to a method and an apparatus for sending and receiving feedback information.
  • LTE Long-term evolution
  • V2X Vehicle networking
  • the transmitting device in LTE V2X can directly communicate with the receiving device through a side link.
  • the side link is a newly defined air interface for LTE V2X (that is, the air interface between V2X devices), which is opposite to the ordinary cellular network Uu interface (that is, the air interface between network devices and terminal devices).
  • the side link can use the frequency resources of the Uu interface of the cellular network, or use dedicated frequency resources.
  • LTE V2X only supports broadcast services.
  • a transmitting device can broadcast road safety information to all surrounding receiving devices.
  • the transmitting device can transmit control information through the physical side-link control channel (PSCCH), and transmit data information through the physical side-link data channel (PSSCH); receiving device
  • PSCCH physical side-link control channel
  • PSSCH physical side-link data channel
  • SCI Sidelink Control Information
  • SCI format 1 can be detected blindly.
  • the SCI is used to indicate the scheduled data information.
  • LTE V2X does not provide support for HARQ-ACK and CSI feedback / reporting.
  • New Radio (NR, New Radio) V2X is one of the currently standardized research projects for Rel-16. Compared with LTE V2X, NR V2X needs to support many new scenarios and new services (for example, remote driving, autonomous driving, and fleet driving, etc.) and needs to meet higher technical indicators (for example, high reliability, low latency, high Data rate, etc.).
  • NR V2X also needs to provide support for unicast services and multicast services.
  • two vehicle devices can exchange road condition video information through unicast, or the fleet can maintain communication between group members and the head shop through multicast.
  • the feedback and reporting of HARQ-ACK and CSI is of great significance for unicast services and multicast services.
  • the sending device may decide whether to schedule retransmission based on the HARQ-ACK feedback result, thereby avoiding the waste of resources that may be caused by blind retransmission; or, the sending device may also perform link adaptation based on the CSI measurement and reporting results; for example, The transmitting device can select a modulation and coding scheme (MCS, Modulation and Coding Scheme), a precoding matrix indicator (PMI, Precoding Matrix Indicator), a beam, a rank, and the like that are most suitable for the current channel based on the CSI, thereby facilitating the realization of high data Rate transmission.
  • MCS Modulation and Coding Scheme
  • PMI Precoding Matrix Indicator
  • LTE V2X only supports broadcast services. In view of the limited role of HARQ-ACK and CSI feedback on broadcast services, LTE V2X does not provide support for HARQ-ACK and CSI feedback and reporting. In contrast, NR V2X requires additional support for unicast and multicast services, and HARQ-ACK and CSI feedback has greater significance for unicast and multicast services in NR V2X, so how to perform HARQ in V2X -ACK and CSI feedback is a problem that needs to be studied and solved.
  • embodiments of the present invention provide a method and an apparatus for sending and receiving feedback information.
  • a method for sending feedback information including:
  • the second device sends feedback information for the first data information and / or the reference signal to the first device, where the feedback information is carried in a side link control channel or a side link data channel.
  • a device for sending feedback information including:
  • a signal receiving unit that receives first data information and / or a reference signal sent by a first device
  • An information feedback unit that sends feedback information for the first data information and / or the reference signal to the first device, where the feedback information is carried in a side link control channel or a side link data channel.
  • a method for receiving feedback information including:
  • the first device sends the first data information and / or the reference signal to the second device;
  • a device for receiving feedback information including:
  • a signal sending unit that sends the first data information and / or the reference signal to the second device
  • An information receiving unit that receives feedback information for the first data information and / or the reference signal sent by the second device, wherein the feedback information is carried in a side link control channel or a side link data channel .
  • a communication system including:
  • a first device including the receiving device for feedback information as described in the fourth aspect above;
  • the second device includes the apparatus for sending feedback information according to the second aspect.
  • a beneficial effect of the embodiments of the present invention is that the feedback information is carried in an edge link control channel or an edge link data channel; thus, it is possible to support the sending and reporting of feedback information in V2X to meet the needs of different scenarios and different services. .
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a method for sending feedback information according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a PSCCH and a PSSCH according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of feedback information and data information according to an embodiment of the present invention.
  • FIG. 5 is an example diagram of a side link control information format according to an embodiment of the present invention.
  • FIG. 6 is another example diagram of the side link control information format of FIG. 5; FIG.
  • FIG. 7 is another exemplary diagram of a side link control information format according to an embodiment of the present invention.
  • FIG. 8 is another example diagram of the side link control information format of FIG. 7; FIG.
  • FIG. 9 is another exemplary diagram of an edge link control information format according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a method for receiving feedback information according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of an apparatus for sending feedback information according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of an apparatus for receiving feedback information according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of a network device according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of a terminal device according to an embodiment of the present invention.
  • first and second are used to distinguish different elements from each other by title, but they do not indicate the spatial arrangement or chronological order of these elements, and these elements should not be used by these terms. Restricted.
  • the term “and / or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having” and the like refer to the presence of stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
  • the term “communication network” or “wireless communication network” may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), and so on.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • LTE-A Long Term Evolution-A
  • LTE- Advanced Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • communication between devices in the communication system may be performed according to a communication protocol at any stage, for example, it may include but is not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G , New Radio (NR, New Radio), etc., and / or other communication protocols currently known or to be developed in the future.
  • 1G generation
  • 2G 2.5G, 2.75G
  • 5G New Radio
  • NR, New Radio New Radio
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services to the terminal device.
  • Network devices may include, but are not limited to, the following devices: Base Station (BS, Base Station), Access Point (AP, Access Point), Transmission and Reception Point (TRP, Transmission, Reception Point), Broadcast Transmitter, Mobile Management Entity (MME, Mobile Management entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), and so on.
  • BS Base Station
  • AP Access Point
  • TRP Transmission and Reception Point
  • Broadcast Transmitter Mobile Management Entity
  • MME Mobile Management Entity
  • gateway server
  • RNC Radio Network Controller
  • BSC Base Station Controller
  • the base station may include, but is not limited to, Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), and so on. In addition, it may also include a remote radio head (RRH, Remote Radio Head). , Remote radio unit (RRU, Remote Radio Unit), relay (relay) or low-power node (such as femeto, pico, etc.). And the term “base station” may include some or all of their functions, and each base station may provide communication coverage for a particular geographic area.
  • the term "cell” may refer to a base station and / or its coverage area, depending on the context in which the term is used.
  • the term "User Equipment” (UE) or “Terminal Equipment” (TE) refers to a device that accesses a communication network through a network device and receives network services.
  • the terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and so on.
  • the terminal device may include, but is not limited to, the following devices: Cellular Phone, Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine-type communication device, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
  • PDA Personal Digital Assistant
  • wireless modem wireless communication device
  • handheld device machine-type communication device
  • laptop computer machine-type communication device
  • Cordless phones smartphones, smart watches, digital cameras, and more.
  • the terminal device may also be a machine or device that performs monitoring or measurement.
  • the terminal device may include, but is not limited to, a Machine Type Communication (MTC) terminal, Vehicle communication terminals, device-to-device (D2D) terminals, machine-to-machine (M2M) terminals, and so on.
  • MTC Machine Type Communication
  • D2D device-to-device
  • M2M machine-to-machine
  • network side refers to one side of the network, which may be a certain base station, or may include one or more network devices as described above.
  • user side or “terminal side” or “terminal device side” refers to the side of the user or terminal, which may be a certain UE, and may also include one or more terminal devices as described above.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, and schematically illustrates a case where a terminal device and a network device are taken as an example.
  • the communication system 100 may include a network device 101 and a terminal device 102.
  • FIG. 1 only uses two terminal devices and one network device as an example for description, but the embodiment of the present invention is not limited thereto.
  • the network device 101 and the terminal device 102 can perform an existing service or a service that can be implemented in the future.
  • these services may include, but are not limited to: enhanced mobile broadband (eMBB, enhanced Mobile Broadband), large-scale machine type communications (mMTC, massive Machine Type Communication), and high-reliability low-latency communications (URLLC, Ultra-Reliable and Low) -Latency Communication) and so on.
  • eMBB enhanced mobile broadband
  • mMTC large-scale machine type communications
  • URLLC Ultra-Reliable and Low
  • FIG. 1 shows that both terminal devices 102 are within the coverage of the network device 101, but the present invention is not limited thereto. Both terminal devices 102 may not be within the coverage of the network device 101, or one terminal device 102 is within the coverage of the network device 101 and the other terminal device 102 is outside the coverage of the network device 101.
  • an edge link transmission may be performed between two terminal devices 102.
  • both terminal devices 102 may perform side-link transmissions within the coverage of the network device 101 to implement V2X communication, or both may perform side-link transmissions outside the coverage of the network device 101 to implement V2X communication. It is also possible for one terminal device 102 to be within the coverage area of the network device 101 and another terminal device 102 to perform side-link transmission outside the coverage area of the network device 101 to implement V2X communication.
  • An embodiment of the present invention provides a method for sending feedback information, which is described from a sending device (also referred to as a second device) side.
  • the sending device may be a terminal device, but the present invention is not limited thereto.
  • the sending device may be a roadside device or a network device.
  • FIG. 2 is a schematic diagram of a method for sending feedback information according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step 201 The second device receives the first data information and / or the reference signal sent by the first device.
  • Step 202 The second device sends feedback information for the first data information and / or the reference signal to the first device, where the feedback information is carried on a side link control channel or side link data. In the channel.
  • FIG. 2 above only illustrates the embodiments of the present invention schematically, but the present invention is not limited thereto.
  • the execution order between the steps can be adjusted as appropriate.
  • other steps can be added or some steps can be reduced.
  • Those skilled in the art may make appropriate modifications based on the foregoing, and are not limited to the description of FIG. 2 described above.
  • the feedback information may include at least one of the following: hybrid automatic repeat request confirmation information (HARQ-ACK), channel state information (CSI), modulation and coding scheme (MCS), and channel quality indicator (CQI) ), Precoding matrix indication (PMI), rank indication (RI), beam information; but the present invention is not limited thereto.
  • HARQ-ACK hybrid automatic repeat request confirmation information
  • CSI channel state information
  • MCS modulation and coding scheme
  • CQI channel quality indicator
  • PMI Precoding matrix indication
  • RI rank indication
  • beam information but the present invention is not limited thereto.
  • HARQ-ACK and / or CSI may be referred to herein as HARQ-ACK / CSI.
  • feedback and “report” herein may have the same or similar meanings, and feedback information and HARQ-ACK / CSI may have the same or similar meanings.
  • PSCCH and SCI can be interchanged without strict distinction.
  • the NR V2X sending device can send feedback information at a certain sending moment.
  • the number of bits contained in the feedback information is variable. For example, if the sending device currently only needs to feed back HARQ-ACK, the feedback information only needs at least 1 bit; if the sending device needs to feed back CSI, the number of bits included in the feedback information will increase greatly; the sending device may also feed back at the same time HARQ-ACK and CSI; the sending device may also feed back multiple HARQ-ACK bits for data received in multiple time slots and / or carriers.
  • the number of bits included in the feedback information may fluctuate within a relatively large range. If only the PSCCH is used to carry the feedback information, since the NR V2X receiving device needs to perform blind detection of the SCI based on a fixed SCI size, the SCI size will be determined by the maximum number of possible feedback information bits, which will generate a lot of unnecessary overhead.
  • the second device determines whether the size of the feedback information is greater than a preset threshold; and uses the side-link data channel bearer if the size of the feedback information is greater than the preset threshold. For the feedback information, if the size of the feedback information is less than or equal to the preset threshold, the side link control channel is used to carry the feedback information.
  • the PSCCH can be used, that is, the feedback information is used as a certain field of the SCI; for feedback information containing more bits, the PSSCH can be used, and the PSSCH is performed by a certain PSCCH Indicate or schedule. There are many ways to judge the above “less” and "more".
  • the definition of "less” and “more” is determined by the second device that sends the feedback information, that is, the second device decides to use the PSCCH to carry the feedback information or use the PSSCH scheduled by the PSCCH to carry the feedback information; For example, a certain field is used in the PSCCH sent by the second device to notify the first device that receives the feedback information: whether the feedback information is carried by the PSCCH or a PSSCH scheduled by the PSCCH.
  • a threshold value less than or equal to (or less than) is defined as “less”, and a threshold value greater than (or greater than or equal to) is defined as “more”.
  • CBG CodeBlock
  • the feedback information may be carried or indicated using at least one side link control information format of the side link control channel.
  • the edge link control channel or the edge can be distinguished by an indication field in the at least one side link control information format or by scrambling the at least one side link control information format.
  • the feedback information and / or the second data information in the link data channel may be carried or indicated using at least one side link control information format of the side link control channel.
  • the PSCCH may have multiple uses.
  • FIG. 3 is a schematic diagram of PSCCH and PSSCH according to an embodiment of the present invention.
  • the PSCCH may carry feedback information; for example, at least one field in the SCI is used to carry the feedback information.
  • the PSCCH schedules the PSSCH, and the PSSCH carries feedback information; wherein the PSSCH only carries feedback information, that is, it does not carry any data information.
  • the PSCCH schedules the PSSCH, and the PSSCH carries feedback information and data information; wherein the PSSCH carries feedback information and data information, that is, the feedback information and data information coexist (for example, HARQ-ACK / CSI piggyback in PSSCH).
  • the PSSCH carries feedback information and data information, that is, the feedback information and data information coexist (for example, HARQ-ACK / CSI piggyback in PSSCH).
  • the second device that sends the feedback information has data information and sends it to the first device that receives the feedback information
  • the feedback information and data information may be carried over the PSSCH.
  • the PSCCH schedules a PSSCH, which carries data information; the PSSCH only carries data information, that is, it does not carry any feedback information.
  • the receiving device When the receiving device receives the PSCCH, it needs to be able to distinguish which one of the above four cases the PSCCH indicates, otherwise an error will occur.
  • the above four cases can be distinguished by using at least one of SCI size, SCI format, SCI field, and SCI scrambling. It should be noted that not all of the four cases in FIG. 3 may occur. Those skilled in the art can distinguish the combination of any more than one case in FIG. 3 by slightly expanding the above embodiment. List them one by one.
  • FIG. 4 is a schematic diagram of feedback information and data information according to an embodiment of the present invention.
  • the device 1 may send first data information and / or a reference signal to the device 2; for the first data information and / or reference signal, the device 2 sends information to the device 1, and the information may be feedback information (For example, HARQ-ACK and / or CSI), it may be feedback information and second data information, or it may be only second data information.
  • the information may be feedback information (For example, HARQ-ACK and / or CSI), it may be feedback information and second data information, or it may be only second data information.
  • Device 1 may know at what time device 2 sends HARQ-ACK and / or CSI. For example, device 1 can instruct device 2 at which time to send HARQ-ACK, and device 1 can also configure at which time device 2 sends CSI.
  • device 1 may configure device 2 to send HARQ-ACK / CSI in a certain time-frequency resource pool, and device 2 selects part of the time-frequency resources in the configured resource pool to send HARQ-ACK / CSI. Since the device 2 can autonomously select a resource for sending HARQ-ACK / CSI, it can avoid collision with transmission of other devices to a certain extent, thereby reducing interference. Device 1 may receive the HARQ-ACK / CSI sent by device 2 in the time-frequency resource pool.
  • device 1 Since device 1 cannot know in advance when device 2 will send data to itself, device 1 may also receive the data sent by device 2 In addition, the device 1 may also receive data from other devices, so the device 1 needs to be able to distinguish the purpose of the PSCCH after receiving the PSCCH.
  • device 1 may instruct device 2 to send HARQ-ACK / CSI on a certain time-frequency resource. Even if the feedback information is sent in a given time-frequency resource, the device 2 can send the feedback information in the PSCCH, the feedback information can be sent in the PSSCH scheduled by the PSCCH, and the feedback information and data can be sent in the PSSCH scheduled by the PSCCH, so the device 1 also A distinction needs to be made between these situations. Assume that the feedback information is sent in a given time-frequency resource. If device 2 does not receive the PSSCH of device 1, device 2 will not send HARQ-ACK, but device 2 may send the HARQ-ACK resource to device 1 Data is transmitted, so device 1 also needs to distinguish whether it received HARQ-ACK or data.
  • the device 1 may not know exactly when the device 2 sends the HARQ-ACK. For example, after sending data information to device 2, device 1 blindly checks whether device 2 has sent a HARQ-ACK within a period of time that the timer has not expired.
  • device 2 may also send data information to device 1 at the moment of HARQ-ACK / CSI feedback, so device 2 may schedule the PSSCH through PSCCH. Send HARQ-ACK / CSI and data information at the same time. Device 2 may also only need to send HARQ-ACK / CSI to device 1. Therefore, when the device 1 receives the PSCCH, it needs to be able to distinguish which kind of information the device 2 sends.
  • the sending device decides to use the PSCCH to carry the feedback information or to use the PSSCH scheduled by the PSCCH to carry the feedback information, and notifies the result to the receiving device of the feedback information.
  • the indication field of the first side link control information format indicates one of the following: the side link control channel carries the feedback information; the side indicated by the side link control channel.
  • the link data channel carries the feedback information but not the second data information;
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information;
  • the side-link data channel indicated by the side-link control channel carries the second data information and does not carry the feedback information.
  • SCI format For example, you can define only one kind of SCI format, and for the sake of explanation, record it as SCI format.
  • An indication field in the SCI format is used to indicate which of the four cases in FIG. 3, for example, this field uses 2 bits to indicate one of the four cases.
  • FIG. 5 is an exemplary diagram of a side link control information format according to an embodiment of the present invention. As shown in FIG. 5, “00”, “01”, “10”, and “11” correspond to four cases 1), 2), 3), and 4) in FIG. 3, respectively. According to the different values of the indicator fields, other fields of the SCI format can have different meanings and interpretations accordingly.
  • the feedback information is carried in other all or part of the SCI field.
  • the feedback information is carried in the PSSCH scheduled by the SCI. All other and partial fields of the SCI format are used to indicate the necessary information of the demodulation feedback information such as the time-frequency resource location of the PSSCH and MCS.
  • the feedback information and data information are carried in the PSSCH scheduled by the SCI, and all other and partial fields of the SCI format are used to indicate the location of the time-frequency resources of the PSSCH, the resources occupied by the data information, and the feedback information Necessary information for demodulating data information and feedback information, such as the ratio of particles (RE, Resource Element), MCS of data information and feedback information, and priority of data information.
  • the data information is carried in the PSSCH scheduled by the SCI. All other and partial fields of the SCI format are used to indicate the time-frequency resource location, MCS, and priority of the PSSCH for demodulating data information. Necessary information.
  • FIG. 6 is a diagram illustrating another example of the format of the side link control information in FIG. 5.
  • other fields in the SCI format can be independently defined.
  • other fields of the SCI indicating the field “00” for example, field 1, field 2, field 3, etc.
  • other fields of the SCI indicating the field “01” for example, field 1, field 2, field 3 Certainly .
  • the other fields of the SCI format can be redefined and divided, that is, the definition of other fields can be different.
  • the SCI format always uses a unified field division, that is, the definition of other fields can be the same.
  • some related fields are used, and other unrelated fields are reserved.
  • the indication field in the SCI can be located in the SCI header or a fixed position in the SCI. By fixing the position of the indication field, the receiving device can read the indication field without knowing the division and definition of all fields, and then determine the division and definition of other fields according to the value of the indication field. Therefore, the complexity of the blind detection of the receiving device is not increased, and the indication of different types of information transmission can be supported under the unified PSCCH structure.
  • the four cases in FIG. 3 may not be all supported. For example, if it is not supported to send feedback information and data information at the same time (the third case in FIG. 3), then the above and the third cases are removed in the implementation process accordingly. This situation is relevant. Since the receiving device still needs to distinguish the three situations in FIG. 3, the indication field in the SCI still needs 2 bits.
  • the receiving device may instruct the sending device to send HARQ-ACK in a certain time-frequency resource.
  • the sending device may send HARQ-ACK in the PSCCH, or send HARQ-ACK in the PSSCH scheduled by the PSCCH, or
  • the HARQ-ACK and data can be sent in the PSSCH scheduled by the PSCCH. Therefore, the receiving device also needs to identify the above situation.
  • the above embodiment can be slightly modified.
  • the 2-bit indication field is used in the SCI, and the above and fourth are removed. This situation is relevant. When only two situations occur in FIG. 3, for example, the receiving device needs to distinguish the received PSCCH for carrying HARQ-ACK or scheduling data.
  • a 1-bit indication field can be used in the SCI.
  • the cyclic redundancy check (CRC, Cyclic Redundancy Check) of the first side link control information format is scrambled by different identifiers, or the side link control information is generated by a sequence generated based on the different identifiers.
  • the bits included in the format are scrambled to indicate one of the following: the side link control channel carries the feedback information; the side link indicated by the side link control channel The data channel carries the feedback information but not the second data information; the side link data channel indicated by the side link control channel carries the feedback information and the second data information; the side The side link data channel indicated by the link control channel carries the second data information and does not carry the feedback information.
  • a SCI format is still used to indicate the four cases in FIG. 3, which is different from the previous embodiment in FIG. 5.
  • an indication field is not reserved in the SCI, but a different ID is used to scramble the CRC of the SCI. Or scramble the entire SCI by sequences generated based on different IDs.
  • the ID as an initial value or a seed to generate a pseudo-random sequence, any relevant method can be used. For example, the method in section 5.2.1 of TS 38.211 can be used, which is not listed here.
  • ID0, ID1, ID2, and ID3 have a one-to-one correspondence with the four cases in Figure 3.
  • the receiving device blindly checks the SCI and attempts to descramble the CRC of the SCI using ID0 ⁇ ID3. Perform a CRC check; or, the receiving device attempts to descramble the SCI using ID 0 to ID 3, and then performs channel decoding and CRC check. Which ID can pass the CRC check indicates that the SCI indicates that it is related to the ID. Which of the associated cases in Figure 3. If the four cases of FIG. 3 are not all supported, the number of available IDs is reduced accordingly.
  • the indication field of the second side link control information format indicates that the feedback information is carried in the side link control channel, or the side chain indicated by the side link control channel.
  • the two data channels carry the feedback information but not the second data information; and / or
  • the indication field of the third side link control information format indicates that the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side information
  • the side-link data channel indicated by the link control channel carries the second data information and does not carry the feedback information.
  • SCI format SCI format
  • SCI format SCI format
  • SCI format SCI format
  • SCI format SCI format
  • FIG. 7 is another example diagram of the side link control information format according to the embodiment of the present invention
  • FIG. 8 is another example diagram of the side link control information format of FIG. 7.
  • device 1 blindly checks SCI format x when it may receive feedback information.
  • the 1-bit indication field in SCI format x is used to indicate whether the feedback information is carried in SCI format (for example, the bit is set to "0") or whether it is carried in SCI format x PSSCH (for example, this bit is set to "1").
  • At least one of the fields in the SCI format carries the feedback information.
  • the above fields can reuse some of the SCI fields when the feedback information is carried in the PSSCH scheduled by the SCI. This is because when the feedback information is not carried by the PSSCH During the bearer, certain fields (such as time-frequency resource allocation of PSSCH, MCS, priority, etc.) are not practically useful, so they can be re-interpreted and used.
  • SCI format x may have different meanings and interpretations accordingly.
  • FIG. 8 for different indication field values, other fields in SCI format and SCI format can be independently defined.
  • the indication field in the SCI can be located in the SCI header or a fixed position in the SCI.
  • Device 1 also blindly checks the SCI format while it is blindly checking the SCI format.
  • the 1-bit field in the SCI format is used to indicate that the PSSCH scheduled by the SCI format carries both feedback information and data information (for example, this bit is set). "0"), or only carries data information (for example, the bit is set to "1"). Therefore, the feedback information containing fewer bits can be directly carried using the short SCI, thereby saving the SCI overhead.
  • the four cases in Figure 3 may not be fully supported. For example, if it is not supported to send feedback information and data information at the same time (the third case in Figure 3), then the content related to the third case in the implementation process Make corresponding modifications, for example, the SCI format does not need to indicate the field at this time.
  • device 1 when device 1 instructs device 2 to send HARQ-ACK in a certain time-frequency resource, device 2 can send HARQ-ACK in PSCCH, it can also send HARQ-ACK in PSSCH scheduled by PSCCH, or PSSCH can be scheduled in PSCCH HARQ-ACK and data are sent in the device, so the device 1 also needs to identify the above situation.
  • the above embodiment may be slightly modified to remove the above-mentioned content related to the fourth case in FIG. 3, and SCI format does not need Indication field.
  • SCI format x and SCI format SCI can be used respectively
  • neither the SCI format nor the SCI format requires an indication field.
  • the cyclic redundancy check of the second side link control information format is scrambled by different identifiers, or the bits included in the side link control information format (such as All bits) are scrambled to indicate that the feedback information is carried in the side link control channel, or that the feedback information is carried in the side link data channel indicated by the side link control channel, and Does not carry secondary data information; and / or
  • SCI format two different lengths of SCI are used: SCI format and SCI format.
  • the SCI's CRC is not scrambled and the indication fields are not reserved in the SCI to indicate different situations in FIG.
  • all bits of the SCI are scrambled by a sequence generated based on different IDs.
  • different scramble IDs can indicate that the feedback information is carried through PSCCH or PSSCH.
  • different scramble IDs can indicate whether the PSSCH contains feedback information in addition to data information.
  • the indication field of the fourth side link control information format indicates that the side link control channel carries the feedback information, or the side chain indicated by the side link control channel.
  • the channel data channel carries the feedback information but not the second data information, or the side link data channel indicated by the side link control channel carries the feedback information and the second data information; and / or
  • the fifth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information but does not carry the feedback information.
  • SCI formats are defined, that is, two types of SCI formats are defined, which are recorded as SCI format and SCI format.
  • SCI format is used to indicate the case of sending feedback information (the first case to the third case in FIG. 3)
  • SCI format is used to indicate the case where only data information is sent (the fourth case in FIG. 3).
  • the 2-bit indication field in the SCI format can be used to indicate the first to third cases in FIG. 3. According to the different values of the indicator fields, other fields of the SCI format can have different meanings and interpretations accordingly.
  • the indication field in the SCI can be located in the SCI header or a fixed position in the SCI.
  • Device 1 also blindly checks the SCI and format while blindly checking the SCI format.
  • the SCI format only schedules data information and does not need to reserve and use indication fields.
  • the four cases in Figure 3 may not be fully supported.
  • the content related to the third case in the implementation process Corresponding modifications may be made, for example, the 1-bit indication field in the SCI format is used to indicate the first and second cases in FIG. 3 at this time.
  • the cyclic redundancy check of the fourth side link control information format is scrambled by different identifiers, or the bits included in the side link control information format (such as All bits) are scrambled to indicate that the feedback information is carried in the side link control channel, or that the feedback information is carried in the side link data channel indicated by the side link control channel, and Does not carry the second data information, or the side link data channel indicated by the side link control channel carries the feedback information and the second data information; and / or
  • the fifth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information but does not carry the feedback information.
  • SCI format does not use the indicator field, but scrambles the CRC by using different IDs, or all the bits of the SCI are generated by sequences generated based on different IDs. Perform scrambling to distinguish the first to third cases in Figure 3.
  • the SCI format is used to indicate the case where only data information is sent (the fourth case in Figure 3).
  • the indication field is not required and may not be used. ID scrambled. When the four cases of FIG. 3 are not all supported, the number of available IDs can be reduced accordingly.
  • the sixth side link control information format indicates: the side link control channel carries the feedback information; and / or; the seventh side link control information format indicates: the side chain The side link data channel indicated by the channel control channel carries the feedback information but not the second data information; and / or; indicated by the indication field of the eighth side link control information format: the side link The side link data channel indicated by the control channel carries the feedback information and the second data information, or the side link data channel indicated by the side link control channel carries the first Two data messages do not carry the feedback information.
  • three different SCIs can be defined, that is, three types of SCI formats, which are recorded as SCI format, SCI format, and SCI format.
  • SCI format and SCI format are used to indicate the first and second cases in FIG. 3, respectively, and SCI format are used to indicate the third and fourth cases in FIG. 3.
  • the device 1 knows whether the device 2 uses the PSCCH or the PSSCH to send feedback information at a certain moment. When device 1 thinks that device 2 will use PSCCH to send feedback information at a certain time, device 1 blindly checks the SCI format and SCI format. When device 1 thinks that device 2 will use PSSCH to send feedback information at a certain time, device 1 blindly checks the SCI format and SCI format.
  • FIG. 9 is another exemplary diagram of a side link control information format according to an embodiment of the present invention.
  • a 1-bit field in the SCI format is used to indicate whether the PSSCH scheduled by the SCI carries both feedback information and data information (for example, the bit is set to "0"), or whether it only carries data information (for example, This bit is set to "1").
  • the indication field in the SCI can be located in the SCI header or a fixed position in the SCI.
  • three types of SCI formats are defined, since device 1 has certain a priori information, it is known in advance that device 2 uses PSCCH or PSSCH to send feedback information at a certain time. At a certain time, device 1 only needs to blindly check the two SCI formats. Reduced complexity of blind inspection.
  • the four cases in Figure 3 may not be fully supported.
  • the content related to the third case in the implementation process Corresponding modifications can be made, for example, the SCI format does not need an indication field at this time.
  • the sixth side link control information format indicates: the side link control channel carries the feedback information; and / or; the seventh side link control information format indicates: the side chain The side link data channel indicated by the channel control channel carries the feedback information but not the second data information; and / or; the cyclic redundancy check of the eighth side link control information format is performed by a different identifier Scrambling, or scrambling the bits (for example, all bits) included in the side link control information format by a sequence generated based on different identifiers to indicate: the side link indicated by the side link control channel A data channel carries the feedback information and the second data information, or the side link data channel indicated by the side link control channel carries the second data information without carrying the feedback information .
  • three different lengths of SCI can be defined, that is, SCI format, SCI format, and SCI format, similar to the embodiment shown in FIG. 9.
  • the SCI format does not reserve and use the indication field here, but uses a different ID to scramble the CRC of the SCI format or a sequence generated based on different IDs. All bits of the SCI are scrambled, so that it can be distinguished whether the PSSCH scheduled by the SCI carries both feedback information and data information, or whether it only carries data information.
  • the four cases in FIG. 3 are not all supported, it can also be easily expanded and modified by reducing the ID or not using the ID.
  • the ninth side link control information format indicates: the side link control channel carries the feedback information; and / or; the tenth side link control information format indicates: the side chain The side link data channel indicated by the channel control channel carries the feedback information but not the second data information; and / or; indicated by the eleventh side link control information format: the side link control channel
  • the indicated side link data channel carries the feedback information and the second data information; and / or; is indicated by a twelfth side link control information format:
  • the side-link data channel carries the second data information and does not carry the feedback information.
  • the receiving device can distinguish the different situations in Figure 3 through blind inspection of SCIs of different lengths.
  • the number of SCIs of different lengths can be reduced accordingly.
  • the feedback information is carried in a side-link control channel or a side-link data channel; thus, it is possible to support the sending and reporting of feedback information in V2X to meet the requirements of different scenarios and different services.
  • an embodiment of the present invention provides a solution for sending feedback information (such as HARQ-ACK and / or CSI) in NR V2X.
  • the feedback information may be carried by the PSCCH or the PSSCH bearer associated with the PSCCH.
  • the sending device determines that the feedback information is carried on the PSCCH and / or PSSCH according to the SCI size and / or field in the SCI; Provide flexible support for different feedback loads (HARQ-ACK and / or CSI bit number), and improve the transmission efficiency of feedback information.
  • An embodiment of the present invention provides a method for receiving feedback information, which is described from a receiving device (first device) side, and the same content as that in Embodiment 1 is not described again.
  • the receiving device may be a terminal device, but the present invention is not limited thereto.
  • the receiving device may be a roadside device or a network device.
  • FIG. 10 is a schematic diagram of a method for receiving feedback information according to an embodiment of the present invention, illustrating a situation on a receiving device side. As shown in FIG. 10, the method includes:
  • Step 1001 The first device sends the first data information and / or reference signal to the second device;
  • Step 1002 The first device receives feedback information on the first data information and / or the reference signal sent by the second device, where the feedback information is carried on a side link control channel or a side link. Data channel.
  • FIG. 10 only illustrates the embodiment of the present invention schematically, but the present invention is not limited thereto.
  • the execution order between the steps can be adjusted as appropriate.
  • other steps can be added or some steps can be reduced.
  • Those skilled in the art may make appropriate modifications based on the foregoing, and are not limited to the description of FIG. 10 described above.
  • the feedback information includes at least one of the following: hybrid automatic repeat request confirmation information (HARQ-ACK), channel state information (CSI), modulation and coding scheme (MCS), and channel quality indicator (CQI) , Precoding matrix indication (PMI), rank indication (RI), beam information.
  • HARQ-ACK hybrid automatic repeat request confirmation information
  • CSI channel state information
  • MCS modulation and coding scheme
  • CQI channel quality indicator
  • PMI Precoding matrix indication
  • RI rank indication
  • beam information includes at least one of the following: hybrid automatic repeat request confirmation information (HARQ-ACK), channel state information (CSI), modulation and coding scheme (MCS), and channel quality indicator (CQI) , Precoding matrix indication (PMI), rank indication (RI), beam information.
  • PMI Precoding matrix indication
  • RI rank indication
  • the feedback information is carried or indicated using at least one side link control information format of the side link control channel.
  • the side link control channel is distinguished by an indication field in the at least one side link control information format or by scrambling the at least one side link control information format or The feedback information and / or the second data information in the side-link data channel.
  • the indication field of the first side link control information format indicates one of the following: the side link control channel carries the feedback information; the side indicated by the side link control channel.
  • the link data channel carries the feedback information but not the second data information;
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information;
  • the side-link data channel indicated by the side-link control channel carries the second data information and does not carry the feedback information.
  • the cyclic redundancy check of the first side link control information format is scrambled by different identifiers, or the bits included in the side link control information format (such as All bits) are scrambled to indicate one of the following: the side link control channel carries the feedback information; the side link data channel indicated by the side link control channel carries the feedback information Without carrying the second data information; the side link data channel indicated by the side link control channel carries the feedback information and the second data information; all the data indicated by the side link control channel The side-link data channel carries the second data information and does not carry the feedback information.
  • the indication field of the second side link control information format indicates that the feedback information is carried in the side link control channel, or the side chain indicated by the side link control channel.
  • the two data channels carry the feedback information but not the second data information; and / or
  • the indication field of the third side link control information format indicates that the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side information
  • the side-link data channel indicated by the link control channel carries the second data information and does not carry the feedback information.
  • the cyclic redundancy check of the second side link control information format is scrambled by different identifiers, or the bits included in the side link control information format (such as All bits) are scrambled to indicate that the feedback information is carried in the side link control channel, or that the feedback information is carried in the side link data channel indicated by the side link control channel, and Does not carry secondary data information; and / or
  • the cyclic redundancy check of the third side link control information format is scrambled by different identifiers, or the bits (for example, all bits) included in the side link control information format are scrambled by a sequence generated based on the different identifiers.
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side link indicated by the side link control channel
  • the link data channel carries the second data information and does not carry the feedback information.
  • the indication field of the fourth side link control information format indicates that the side link control channel carries the feedback information, or the side chain indicated by the side link control channel.
  • the channel data channel carries the feedback information but not the second data information, or the side link data channel indicated by the side link control channel carries the feedback information and the second data information; and / or
  • the fifth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information but does not carry the feedback information.
  • the cyclic redundancy check of the fourth side link control information format is scrambled by different identifiers, or the bits included in the side link control information format (such as All bits) are scrambled to indicate that the feedback information is carried in the side link control channel, or that the feedback information is carried in the side link data channel indicated by the side link control channel, and Does not carry the second data information, or the side link data channel indicated by the side link control channel carries the feedback information and the second data information; and / or
  • the fifth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information but does not carry the feedback information.
  • the sixth side link control information format indicates that the side link control channel carries the feedback information; and / or
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or
  • the indication field of the eighth side link control information format indicates that the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side information
  • the side-link data channel indicated by the link control channel carries the second data information and does not carry the feedback information.
  • the sixth side link control information format indicates that the side link control channel carries the feedback information; and / or
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or
  • the cyclic redundancy check of the eighth side link control information format is scrambled by different identifiers, or the bits (for example, all bits) included in the side link control information format are scrambled by a sequence generated based on the different identifiers.
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side link indicated by the side link control channel
  • the link data channel carries the second data information and does not carry the feedback information.
  • the ninth side link control information format indicates: the side link control channel carries the feedback information; and / or;
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or;
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information; and / or;
  • the twelfth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information and does not carry the feedback information.
  • the feedback information is carried in a side-link control channel or a side-link data channel; thus, it is possible to support the sending and reporting of feedback information in V2X to meet the requirements of different scenarios and different services.
  • An embodiment of the present invention provides a device for sending feedback information.
  • the device may be, for example, a terminal device, or may be some or some parts or components configured on the terminal device.
  • the present invention is not limited to this.
  • the present invention may be a roadside device or a network device, or may be some or some components or components configured on the roadside device or the network device.
  • the content of the third embodiment is the same as that of the first embodiment and will not be described again.
  • FIG. 11 is a schematic diagram of a feedback information sending device according to an embodiment of the present invention. As shown in FIG. 11, the feedback information sending device 1100 includes:
  • a signal receiving unit 1101 which receives first data information and / or a reference signal sent by a first device;
  • An information feedback unit 1102 which sends feedback information for the first data information and / or the reference signal to the first device, wherein the feedback information is carried in a side link control channel or a side link data channel .
  • the sending apparatus 1100 for feedback information may further include:
  • the information feedback unit 1102 is further configured to: when the size of the feedback information is greater than the preset threshold, use the side link data channel to carry the feedback information, and when the size of the feedback information is less than or equal to In the case of the preset threshold, the side link control channel is used to carry the feedback information.
  • the feedback information sending device 1100 may further include other components or modules.
  • the feedback information sending device 1100 may further include other components or modules.
  • FIG. 11 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be adopted.
  • Each of the above components or modules may be implemented through hardware facilities such as a processor, a memory, a transmitter, and a receiver; the implementation of the present invention does not limit this.
  • the feedback information is carried in a side-link control channel or a side-link data channel; thus, it is possible to support the sending and reporting of feedback information in V2X to meet the requirements of different scenarios and different services.
  • An embodiment of the present invention provides a device for receiving feedback information.
  • the device may be, for example, a terminal device, or may be some or some parts or components configured on the terminal device.
  • the present invention is not limited to this.
  • the present invention may be a roadside device or a network device, or may be some or some components or components configured on the roadside device or the network device.
  • the content of the fourth embodiment is the same as that of the second embodiment.
  • FIG. 12 is a schematic diagram of a feedback information receiving apparatus according to an embodiment of the present invention. As shown in FIG. 12, the feedback information receiving apparatus 1200 includes:
  • a signal sending unit 1201 which sends the first data information and / or a reference signal to the second device.
  • An information receiving unit 1202 which receives feedback information for the first data information and / or the reference signal sent by the second device, where the feedback information is carried on a side link control channel or a side link data channel in.
  • the apparatus 1200 for receiving feedback information may further include other components or modules.
  • the apparatus 1200 for receiving feedback information may further include other components or modules.
  • FIG. 12 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection may be adopted.
  • Each of the above components or modules may be implemented through hardware facilities such as a processor, a memory, a transmitter, and a receiver; the implementation of the present invention does not limit this.
  • the feedback information is carried in a side-link control channel or a side-link data channel; thus, it is possible to support the sending and reporting of feedback information in V2X to meet the requirements of different scenarios and different services.
  • the communication system 100 may include:
  • the terminal device 102 is configured with the feedback information sending device 1100 according to the third embodiment or the feedback information receiving device 1200 according to the fourth embodiment.
  • the network device 101 provides services for the terminal device 102.
  • An embodiment of the present invention further provides a network device, which may be, for example, a base station, but the present invention is not limited thereto, and may also be another network device.
  • a network device which may be, for example, a base station, but the present invention is not limited thereto, and may also be another network device.
  • FIG. 13 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device 1300 may include a processor 1310 (such as a central processing unit CPU) and a memory 1320; the memory 1320 is coupled to the processor 1310.
  • the memory 1320 can store various data; in addition, a program 1330 for information processing is stored, and the program 1330 is executed under the control of the processor 1310.
  • the network device 1300 may further include a transceiver 1340, an antenna 1350, and the like; wherein the functions of the above components are similar to those in the prior art, and details are not described herein again. It is worth noting that the network device 1300 does not have to include all the components shown in FIG. 13; in addition, the network device 1300 may also include components not shown in FIG. 13, and reference may be made to the prior art.
  • An embodiment of the present invention further provides a terminal device, but the present invention is not limited thereto, and may also be another device.
  • FIG. 14 is a schematic diagram of a terminal device according to an embodiment of the present invention.
  • the terminal device 1400 may include a processor 1410 and a memory 1420; the memory 1420 stores data and programs, and is coupled to the processor 1410. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace the structure to implement telecommunication functions or other functions.
  • the processor 1410 may be configured to execute a program to implement the method for transmitting feedback information as described in Embodiment 1.
  • the processor 1410 may be configured to perform control of: receiving first data information and / or a reference signal sent by a first device; and sending the first data information and / or the reference to the first device to the first device.
  • Signal feedback information where the feedback information is carried in a side-link control channel or a side-link data channel.
  • the processor 1410 may be configured to execute a program to implement the method for receiving feedback information described in Embodiment 2.
  • the processor 1410 may be configured to perform the following control: sending first data information and / or a reference signal to a second device; and receiving the first data information and / or the reference sent by the second device Signal feedback information, where the feedback information is carried in a side-link control channel or a side-link data channel.
  • the terminal device 1400 may further include a communication module 1430, an input unit 1440, a display 1450, and a power supply 1460.
  • the functions of the above components are similar to those in the prior art, and are not repeated here. It is worth noting that the terminal device 1400 does not have to include all the components shown in FIG. 14, and the above components are not necessary.
  • the terminal device 1400 may also include components not shown in FIG. 14. There is technology.
  • An embodiment of the present invention further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method for sending feedback information according to Embodiment 1 or the method according to Embodiment 2 How to receive feedback.
  • An embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program causes a terminal device to execute the method for sending feedback information according to the first embodiment or the method for receiving feedback information according to the second embodiment.
  • the above devices and methods of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer-readable program that, when executed by a logic component, enables the logic component to implement the apparatus or constituent components described above, or enables the logic component to implement various methods described above. Or steps.
  • the present invention also relates to a storage medium for storing the above programs, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
  • the methods / devices described in connection with the embodiments of the present invention may be directly embodied as hardware, software modules executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams and / or one or more combinations of functional block diagrams shown in the figure may correspond to each software module of a computer program flow, or to each hardware module.
  • These software modules can respectively correspond to the steps shown in the figure.
  • These hardware modules can be implemented by using a field programmable gate array (FPGA) to cure these software modules.
  • FPGA field programmable gate array
  • a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium may be coupled to the processor so that the processor can read information from and write information to the storage medium; or the storage medium may be a component of the processor.
  • the processor and the storage medium may reside in an ASIC.
  • This software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module may be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • the functional blocks and / or one or more combinations of the functional blocks described in the drawings it can be implemented as a general-purpose processor, digital signal processor (DSP) for performing the functions described in the present invention. ), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
  • DSP digital signal processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • One or more of the functional blocks and / or one or more combinations of the functional blocks described with reference to the drawings may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors Processor, one or more microprocessors in conjunction with DSP communications, or any other such configuration.
  • a method for sending feedback information includes:
  • the second device sends feedback information for the first data information and / or the reference signal to the first device, where the feedback information is carried in a side link control channel or a side link data channel.
  • Attachment 2 The method according to Attachment 1, wherein the feedback information includes at least one of the following: hybrid automatic repeat request confirmation information (HARQ-ACK), channel state information (CSI), modulation and coding scheme ( MCS), channel quality indication (CQI), precoding matrix indication (PMI), rank indication (RI), beam information.
  • HARQ-ACK hybrid automatic repeat request confirmation information
  • CSI channel state information
  • MCS modulation and coding scheme
  • CQI channel quality indication
  • PMI precoding matrix indication
  • RI rank indication
  • Supplementary note 3 The method according to supplementary note 1 or 2, wherein the feedback information is carried or indicated using at least one side link control information format of the side link control channel.
  • Supplementary note 4 The method according to supplementary note 3, wherein the side link control channel or the side link data channel is distinguished by an indication field in the at least one side link control information format.
  • Supplementary note 5 The method according to supplementary note 4, wherein, for different values of the indication field, other fields in the side link control information format that are different from the indication field are independent.
  • Appendix 6 The method according to Appendix 3, wherein the side link control channel or the side link data channel is distinguished by scrambling the at least one side link control information format.
  • Supplementary note 7 The method according to any one of supplementary notes 1 to 6, wherein the indication field of the first side link control information format indicates one of the following:
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information
  • the side-link data channel indicated by the side-link control channel carries the second data information and does not carry the feedback information.
  • Supplementary note 8 The method according to any one of supplementary notes 1 to 6, wherein the cyclic redundancy check of the first side link control information format is scrambled by different identifiers, or is generated based on the different identifiers.
  • the sequence scrambles the bits contained in the side link control information format to indicate one of the following:
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information
  • the side link data channel indicated by the side link control channel carries the second data information and does not carry the feedback information.
  • Supplementary note 9 The method according to any one of supplementary notes 1 to 6, wherein the indication field of the second side link control information format indicates that the feedback information is carried in the side link control channel, or, The side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or
  • the indication field of the third side link control information format indicates that the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side information
  • the side-link data channel indicated by the link control channel carries the second data information and does not carry the feedback information.
  • Supplementary note 10 The method according to any one of supplementary notes 1 to 6, wherein the cyclic redundancy check of the second side link control information format is scrambled by a different identifier, or is generated based on a different identifier.
  • the sequence scrambles the bits contained in the side link control information format to indicate that the side link control channel carries the feedback information, or the side link indicated by the side link control channel.
  • the data channel carries the feedback information without carrying the second data information; and / or
  • the cyclic redundancy check of the third side link control information format is scrambled by different identifiers, or the bits included in the side link control information format are scrambled by a sequence generated based on the different identifiers to indicate:
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side link data channel indicated by the side link control channel is Carrying the second data information but not the feedback information.
  • Supplementary note 11 The method according to any one of supplementary notes 1 to 6, wherein the indication field of the fourth side link control information format indicates that the side link control channel carries the feedback information, or The side link data channel indicated by the side link control channel carries the feedback information without carrying the second data information, or the side link data channel indicated by the side link control channel Carrying the feedback information and the second data information; and / or
  • the fifth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information but does not carry the feedback information.
  • Supplementary note 12 The method according to any one of supplementary notes 1 to 6, wherein the cyclic redundancy check of the fourth side link control information format is scrambled by a different identifier, or is generated based on a different identifier.
  • the sequence scrambles the bits contained in the side link control information format to indicate that the side link control channel carries the feedback information, or the side link indicated by the side link control channel.
  • the data channel carries the feedback information without carrying the second data information, or the side link data channel indicated by the side link control channel carries the feedback information and the second data information; and /or
  • the fifth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information but does not carry the feedback information.
  • Supplementary note 13 The method according to any one of supplementary notes 1 to 6, wherein the sixth side link control information format indicates that: the side link control channel carries the feedback information; and / or
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or
  • the indication field of the eighth side link control information format indicates that the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side information
  • the side-link data channel indicated by the link control channel carries the second data information and does not carry the feedback information.
  • Supplementary note 14 The method according to any one of supplementary notes 1 to 6, wherein the sixth side link control information format indicates: the side link control channel carries the feedback information; and / or
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or
  • the cyclic redundancy check of the eighth side link control information format is scrambled by different identifiers, or the bits included in the side link control information format are scrambled by a sequence generated based on the different identifiers to indicate:
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side link data channel indicated by the side link control channel is Carrying the second data information but not the feedback information.
  • Supplementary note 15 The method according to any one of supplementary notes 1 to 6, wherein the ninth side link control information format indicates: the side link control channel carries the feedback information; and / or
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information; and / or
  • the twelfth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information and does not carry the feedback information.
  • Supplementary note 16 The method according to any one of supplementary notes 1 to 15, wherein the method further comprises:
  • the side-link control channel carries the feedback information.
  • a method for receiving feedback information including:
  • the first device sends the first data information and / or the reference signal to the second device;
  • Appendix 18 The method according to Appendix 17, wherein the feedback information includes at least one of the following: hybrid automatic repeat request confirmation information (HARQ-ACK), channel state information (CSI), modulation and coding scheme ( MCS), channel quality indication (CQI), precoding matrix indication (PMI), rank indication (RI), beam information.
  • HARQ-ACK hybrid automatic repeat request confirmation information
  • CSI channel state information
  • MCS modulation and coding scheme
  • CQI channel quality indication
  • PMI precoding matrix indication
  • RI rank indication
  • Supplementary note 19 The method according to supplementary note 17 or 18, wherein the feedback information is carried or indicated using at least one side link control information format of the side link control channel.
  • Supplementary note 20 The method according to supplementary note 19, wherein the side link control channel or the side link data channel is distinguished by an indication field in the at least one side link control information format.
  • Supplementary note 21 The method according to supplementary note 20, wherein, for different values of the indication field, other fields in the side link control information format that are different from the indication field are independent.
  • Supplementary note 22 The method according to supplementary note 19, wherein the side link control channel or the side link data channel is distinguished by scrambling the at least one side link control information format.
  • Supplementary note 23 The method according to any one of supplementary notes 17 to 22, wherein the indication field of the first side link control information format indicates one of the following:
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information
  • the side-link data channel indicated by the side-link control channel carries the second data information and does not carry the feedback information.
  • Supplementary note 24 The method according to any one of supplementary notes 17 to 22, wherein the cyclic redundancy check of the first side link control information format is scrambled by different identifiers, or is generated based on the different identifiers.
  • the sequence scrambles the bits contained in the side link control information format to indicate one of the following:
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information
  • the side link data channel indicated by the side link control channel carries the second data information and does not carry the feedback information.
  • Supplementary note 25 The method according to any one of supplementary notes 17 to 22, wherein the indication field of the second side link control information format indicates that the feedback information is carried in the side link control channel, or, The side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or
  • the indication field of the third side link control information format indicates that the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side information
  • the side-link data channel indicated by the link control channel carries the second data information and does not carry the feedback information.
  • Supplementary note 26 The method according to any one of supplementary notes 17 to 22, wherein the cyclic redundancy check of the second side link control information format is scrambled by a different identifier, or is generated by a The sequence scrambles the bits contained in the side link control information format to indicate that the side link control channel carries the feedback information, or the side link indicated by the side link control channel.
  • the data channel carries the feedback information without carrying the second data information; and / or
  • the cyclic redundancy check of the third side link control information format is scrambled by different identifiers, or the bits included in the side link control information format are scrambled by a sequence generated based on the different identifiers to indicate:
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side link data channel indicated by the side link control channel is Carrying the second data information but not the feedback information.
  • Supplementary note 27 The method according to any one of supplementary notes 17 to 22, wherein an indication field of a fourth side link control information format indicates that the side link control channel carries the feedback information, or The side link data channel indicated by the side link control channel carries the feedback information without carrying the second data information, or the side link data channel indicated by the side link control channel Carrying the feedback information and the second data information; and / or
  • the fifth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information but does not carry the feedback information.
  • Supplementary note 28 The method according to any one of supplementary notes 17 to 22, wherein the cyclic redundancy check of the fourth side link control information format is scrambled by a different identifier, or is generated based on a different identifier.
  • the sequence scrambles the bits contained in the side link control information format to indicate that the side link control channel carries the feedback information, or the side link indicated by the side link control channel.
  • the data channel carries the feedback information without carrying the second data information, or the side link data channel indicated by the side link control channel carries the feedback information and the second data information; and /or
  • the fifth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information but does not carry the feedback information.
  • Supplementary note 29 The method according to any one of supplementary notes 17 to 22, wherein the sixth side link control information format indicates: the side link control channel carries the feedback information; and / or
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or
  • the indication field of the eighth side link control information format indicates that the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side information
  • the side-link data channel indicated by the link control channel carries the second data information and does not carry the feedback information.
  • Supplementary note 30 The method according to any one of supplementary notes 17 to 22, wherein the sixth side link control information format indicates that the side link control channel carries the feedback information; and / or
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or
  • the cyclic redundancy check of the eighth side link control information format is scrambled by different identifiers, or the bits included in the side link control information format are scrambled by a sequence generated based on the different identifiers to indicate:
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information, or the side link data channel indicated by the side link control channel is Carrying the second data information but not the feedback information.
  • Supplementary note 31 The method according to any one of supplementary notes 17 to 22, wherein the ninth side link control information format indicates: the side link control channel carries the feedback information; and / or
  • the side link data channel indicated by the side link control channel carries the feedback information but does not carry second data information; and / or
  • the side link data channel indicated by the side link control channel carries the feedback information and the second data information; and / or
  • the twelfth side link control information format indicates that the side link data channel indicated by the side link control channel carries the second data information and does not carry the feedback information.
  • Supplementary note 32 A terminal device comprising a memory and a processor, said memory storing a computer program, said processor being configured to execute said computer program to implement the feedback according to any one of supplementary notes 1 to 16 A method of transmitting information, or a method of receiving feedback information according to any one of Supplementary Note 17 to 31.

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Abstract

一种反馈信息的发送和接收方法以及装置。所述方法包括：第二设备接收第一设备发送的第一数据信息和/或参考信号；以及所述第二设备向所述第一设备发送针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。由此，能够在V2X中支持反馈信息的发送和上报，满足不同场景和不同业务的需求。

Description

反馈信息的发送和接收方法以及装置 技术领域
本发明实施例涉及通信技术领域，特别涉及一种反馈信息的发送和接收方法以及装置。
背景技术
长期演进(LTE，Long Term Evolution)的车联网(V2X，Vehicle to Everything)是一种车辆通信技术，能够实现车辆与车辆、车辆与路侧设备以及车辆与行人之间的信息交互。
LTE V2X中的发送设备可以通过边链路(sidelink)与接收设备直接进行通信。边链路是为LTE V2X新定义的空中接口(即V2X设备之间的空中接口)，与通常的蜂窝网络Uu接口(即网络设备与终端设备之间的空中接口)相对。边链路可以使用蜂窝网络Uu接口的频率资源，也可以使用专用的频率资源。
LTE V2X仅支持广播业务，例如，发送设备可将道路安全信息广播给周围所有的接收设备。在边链路传输中，发送设备可以通过物理边链路控制信道(PSCCH，Physical Sidelink Control Channel)传输控制信息，通过物理边链路数据信道(PSSCH，Physical Sidelink Shared Channel)传输数据信息；接收设备可以盲检边链路控制信息(SCI，Sidelink Control Information)格式(例如SCI format 1)，SCI用来指示所调度的数据信息。鉴于反馈信息(例如，HARQ-ACK和CSI)对于广播业务的作用有限，LTE V2X没有提供对HARQ-ACK和CSI反馈/上报的支持。
另一方面，新无线(NR，New Radio)V2X是目前Rel-16标准化的研究项目之一。相比于LTE V2X，NR V2X需要支持诸多的新场景和新业务(例如，远程驾驶、自动驾驶和车队行驶等等)，需要满足更高的技术指标(例如，高可靠、低时延、高数据速率等等)。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
发明人发现：为满足不同场景和不同业务的需求，除广播业务外，NR V2X还需要提供对单播业务和组播业务的支持。例如，两个车辆设备可以通过单播方式交互路况视频信息，或者，车队可以通过组播方式保持组员与头车间的通信。与广播业务的情形不同，HARQ-ACK和CSI的反馈和上报对于单播业务和组播业务具有重要意义。
例如，发送设备可以基于HARQ-ACK的反馈结果决定是否调度重传，从而可以避免盲重传可能造成的资源浪费；或者，发送设备也可以基于CSI测量和上报结果进行链路自适应；例如，发送设备可以基于CSI选择最能适应当前信道的调制和编码方案(MCS，Modulation and Coding Scheme)、预编码矩阵指示(PMI，Precoding Matrix Indicators)、波束、秩，等等，从而有利于实现高数据速率传输。
但是，LTE V2X仅支持广播业务，鉴于HARQ-ACK和CSI的反馈对于广播业务的作用有限，LTE V2X没有提供对HARQ-ACK和CSI的反馈和上报的支持。相比之下，NR V2X需要额外支持单播业务和组播业务，而HARQ-ACK和CSI的反馈对于NR V2X中的单播业务和组播业务具有更大意义，因此在V2X中如何进行HARQ-ACK和CSI的反馈是一个需要研究和解决的问题。
针对上述问题的至少之一，本发明实施例提供一种反馈信息的发送和接收方法以及装置。
根据本发明实施例的第一个方面，提供一种反馈信息的发送方法，包括：
第二设备接收第一设备发送的第一数据信息和/或参考信号；以及
所述第二设备向所述第一设备发送针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
根据本发明实施例的第二个方面，提供一种反馈信息的发送装置，包括：
信号接收单元，其接收第一设备发送的第一数据信息和/或参考信号；以及
信息反馈单元，其向所述第一设备发送针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
根据本发明实施例的第三个方面，提供一种反馈信息的接收方法，包括：
第一设备向第二设备发送第一数据信息和/或参考信号；以及
所述第一设备接收所述第二设备发送的针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
根据本发明实施例的第四个方面，提供一种反馈信息的接收装置，包括：
信号发送单元，其向第二设备发送第一数据信息和/或参考信号；以及
信息接收单元，其接收所述第二设备发送的针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
根据本发明实施例的第五个方面，提供一种通信系统，包括：
第一设备，其包括如上第四方面所述的反馈信息的接收装置；以及
第二设备，其包括如上第二方面所述的反馈信息的发送装置。
本发明实施例的有益效果在于：将反馈信息承载在边链路控制信道或者边链路数据信道中；由此，能够在V2X中支持反馈信息的发送和上报，满足不同场景和不同业务的需求。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本发明实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
图1是本发明实施例的通信系统的示意图；
图2是本发明实施例的反馈信息的发送方法的示意图；
图3是本发明实施例的PSCCH和PSSCH的示意图；
图4是本发明实施例的反馈信息和数据信息的示意图；
图5是本发明实施例的边链路控制信息格式的一示例图；
图6是图5的边链路控制信息格式的另一示例图；
图7是本发明实施例的边链路控制信息格式的另一示例图；
图8是图7的边链路控制信息格式的另一示例图；
图9是本发明实施例的边链路控制信息格式的另一示例图；
图10是本发明实施例的反馈信息的接收方法的示意图；
图11是本发明实施例的反馈信息的发送装置的示意图；
图12是本发明实施例的反馈信息的接收装置的示意图；
图13是本发明实施例的网络设备的示意图；
图14是本发明实施例的终端设备的示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本发明实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本发明实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本发明实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本发明实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femeto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本发明实施例中，术语“用户设备”(UE，User Equipment)或者“终端设备”(TE，Terminal Equipment或Terminal Device)例如是指通过网络设备接入通信网络并接收网络服务的设备。终端设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，终端设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，终端设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
此外，术语“网络侧”或“网络设备侧”是指网络的一侧，可以是某一基站，也可以包括如上的一个或多个网络设备。术语“用户侧”或“终端侧”或“终端设备侧”是指用户或终端的一侧，可以是某一UE，也可以包括如上的一个或多个终端设备。
以下通过示例对本发明实施例的场景进行说明，但本发明不限于此。
图1是本发明实施例的通信系统的示意图，示意性说明了以终端设备和网络设备为例的情况，如图1所示，通信系统100可以包括网络设备101和终端设备102。为简单起见，图1仅以两个终端设备和一个网络设备为例进行说明，但本发明实施例不限于此。
在本发明实施例中，网络设备101和终端设备102之间可以进行现有的业务或者未来可实施的业务传输。例如，这些业务可以包括但不限于：增强的移动宽带(eMBB，enhanced Mobile Broadband)、大规模机器类型通信(mMTC，massive Machine Type Communication)和高可靠低时延通信(URLLC，Ultra-Reliable and Low-Latency Communication)，等等。
值得注意的是，图1示出了两个终端设备102均处于网络设备101的覆盖范围内，但本发明不限于此。两个终端设备102可以均不在网络设备101的覆盖范围内，或者一个终端设备102在网络设备101的覆盖范围之内而另一个终端设备102在网络设备101的覆盖范围之外。
在本发明实施例中，两个终端设备102之间可以进行边链路传输。例如，两个终端设备102可以都在网络设备101的覆盖范围之内进行边链路传输以实现V2X通信，也可以都在网络设备101的覆盖范围之外进行边链路传输以实现V2X通信，还可以一个终端设备102在网络设备101的覆盖范围之内而另一个终端设备102在网络设备101的覆盖范围之外进行边链路传输以实现V2X通信。
本发明实施例将以边链路和V2X为例进行说明，但本发明不限于此。
实施例1
本发明实施例提供一种反馈信息的发送方法，从发送设备(也可称为第二设备)侧进行说明。其中该发送设备可以是终端设备，但本发明不限于此，例如也可以是路侧设备或者网络设备。
图2是本发明实施例的反馈信息的发送方法的一示意图，如图2所示，所述方法 包括：
步骤201，第二设备接收第一设备发送的第一数据信息和/或参考信号；以及
步骤202，所述第二设备向所述第一设备发送针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
值得注意的是，以上附图2仅对本发明实施例进行了示意性说明，但本发明不限于此。例如可以适当地调整各个步骤之间的执行顺序，此外还可以增加其他的一些步骤或者减少其中的某些步骤。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图2的记载。
在一个实施例中，所述反馈信息可以包括如下至少之一：混合自动重传请求确认信息(HARQ-ACK)、信道状态信息(CSI)、调制和编码方案(MCS)、信道质量指示(CQI)、预编码矩阵指示(PMI)、秩指示(RI)、波束信息；但本发明不限于此。
以下将以HARQ-ACK和/或CSI为例进行说明。为简单起见，HARQ-ACK和/或CSI在本文中可以记为HARQ-ACK/CSI。此外，本文中“反馈”(feedback)和“上报”(report)可以具有相同或相似的含义，反馈信息与HARQ-ACK/CSI可以具有相同或相似的含义。在表示边链路控制信息这一含义时，PSCCH和SCI可以互换，不做严格区分。
NR V2X发送设备可以在某一发送时刻发送反馈信息。反馈信息所包含的比特数目是可变的。例如，如果该发送设备当前仅需反馈HARQ-ACK，则反馈信息最少仅需1比特；如果该发送设备需要反馈CSI，则反馈信息所包含的比特数将大大增加；该发送设备还可能同时反馈HARQ-ACK和CSI；该发送设备还可能针对多个时隙和/或载波接收到的数据反馈多个HARQ-ACK比特。
因此，反馈信息所包含的比特数目可能在较大的范围内发生波动。如果仅使用PSCCH承载反馈信息，由于NR V2X接收设备需要基于一个固定的SCI大小(size)对SCI进行盲检，SCI大小将由最大可能的反馈信息比特数决定，这将产生大量不必要的开销。
在一个实施例中，所述第二设备确定所述反馈信息的大小是否大于预设阈值；以及在所述反馈信息的大小大于所述预设阈值的情况下使用所述边链路数据信道承载所述反馈信息，在所述反馈信息的大小小于或等于所述预设阈值的情况下使用所述边 链路控制信道承载所述反馈信息。
例如，对于包含较少比特数的反馈信息，可以使用PSCCH承载，即将反馈信息作为SCI的某一个字段；对于包含较多比特数的反馈信息，可以使用PSSCH承载，并且该PSSCH由某一PSCCH进行指示或调度。对于上述“较少”和“较多”的判断，可以有多种方式。
在一个实施方式中，由发送反馈信息的第二设备自行决定“较少”和“较多”的定义，即第二设备自行决定使用PSCCH承载反馈信息或使用由PSCCH调度的PSSCH承载反馈信息；例如，在第二设备发送的PSCCH中使用某个字段来通知接收反馈信息的第一设备：该反馈信息是由PSCCH承载还是由PSCCH调度的PSSCH承载。
在另一个实施方式中，将小于等于(或小于)某一阈值定义为“较少”，将大于(或大于等于)该阈值定义为“较多”。其中该阈值可以是一个预定义的数值，例如定义为2比特，以针对2个传输块(TB，Transmission Block)的HARQ-ACK反馈作为界限；或者定义为X比特，X值选取的原则是小于等于(或小于)X比特时使用极化(polar)编码，大于(或大于等于)X比特时使用低密度奇偶校验(LDPC，Low-Density Parity Check)编码，例如X＝11；或者定义为8比特，这是NR中一个TB最多包含的编码块组(CBG，Code Block Group)数目。
在一个实施例中，可以使用所述边链路控制信道的至少一种边链路控制信息格式承载或指示所述反馈信息。例如，可以通过所述至少一种边链路控制信息格式中的指示字段或者通过对所述至少一种边链路控制信息格式的加扰，来区分所述边链路控制信道或者所述边链路数据信道中的所述反馈信息和/或第二数据信息。
例如，当NR V2X接收设备接收到某个PSCCH时，该PSCCH可能有多种用途。
图3是本发明实施例的PSCCH和PSSCH的一示意图。如图3所示，在第一种情况中，PSCCH可以承载反馈信息；例如SCI中的至少一个字段用来承载该反馈信息。
在第二种情况中，PSCCH调度PSSCH，该PSSCH承载反馈信息；其中PSSCH仅承载反馈信息，即不承载任何数据信息。
在第三种情况中，PSCCH调度PSSCH，该PSSCH承载反馈信息和数据信息；其中PSSCH承载反馈信息和数据信息，即反馈信息和数据信息同时存在(例如，HARQ-ACK/CSI piggyback in PSSCH)。例如，发送反馈信息的第二设备有数据信息 发送给接收反馈信息的第一设备，可以将反馈信息和数据信息通过PSSCH承载。
在第四种情况中，PSCCH调度PSSCH，该PSSCH承载数据信息；其中PSSCH仅承载数据信息，即不承载任何反馈信息。
当接收设备接收到PSCCH时，需要能够分辨出PSCCH指示的是上述四种情况中的哪一种情况，否则将产生错误。可以使用SCI长度(size)、SCI格式(format)、SCI字段、SCI加扰中的至少一项对上述四种情况进行区分。需要说明的是，图3中的4种情况可以不全部出现，本领域技术人员通过对上述实施例稍加扩展，即可对图3中任意多于一种情况的组合进行区分，在此不一一列举。
图4是本发明实施例的反馈信息和数据信息的一示意图。如图4所示，设备1可以向设备2发送第一数据信息和/或参考信号；针对所述第一数据信息和/或参考信号，设备2向设备1发送信息，该信息可以是反馈信息(例如HARQ-ACK和/或CSI)，可以是反馈信息和第二数据信息，也可以仅是第二数据信息。
设备1可以已知设备2在哪一时刻发送HARQ-ACK和/或CSI。例如，设备1可以指示设备2在哪一时刻发送HARQ-ACK，设备1也可以配置设备2在哪些时刻发送CSI。
例如，设备1可以配置设备2在某个时频资源池发送HARQ-ACK/CSI，设备2在配置的资源池选择部分时频资源用于发送HARQ-ACK/CSI。由于设备2能够自主选择发送HARQ-ACK/CSI的资源，可以在一定程度上避免与其他设备的传输发生碰撞，从而减少干扰。设备1在时频资源池内可能接收到设备2发送的HARQ-ACK/CSI，由于设备1不能事先知晓设备2将在哪一时刻发送数据给自己，因此设备1也可能接收到设备2发送的数据，此外，设备1还可能接收到来自于其他设备的数据，因此设备1在接收到PSCCH后需要能够区分PSCCH的用途。
再例如，设备1可以指示设备2在某一时频资源发送HARQ-ACK/CSI。即使反馈信息在给定的时频资源发送，设备2可以在PSCCH中发送反馈信息，可以在PSCCH调度的PSSCH中发送反馈信息，可以在PSCCH调度的PSSCH中发送反馈信息和数据，因此设备1也需要对上述情况进行区分。假设反馈信息在给定的时频资源发送，如果设备2没有收到设备1的PSSCH，则设备2不会发送HARQ-ACK，但设备2可能在本该反馈HARQ-ACK的资源上向设备1发送数据，因此设备1也需要区分接收到的是HARQ-ACK还是数据。
再例如，设备1也可以不确切已知设备2在哪一时刻发送HARQ-ACK。例如设备1在发送数据信息给设备2后，在计时器尚未超时的一段时间内盲检是否设备2发送了HARQ-ACK。
无论使用上述哪种方式确定设备2发送HARQ-ACK/CSI的时频资源，设备2在反馈HARQ-ACK/CSI的时刻也可能有数据信息发送给设备1，因此设备2可能通过PSCCH调度的PSSCH同时发送HARQ-ACK/CSI和数据信息。设备2也可能只有HARQ-ACK/CSI需要发送给设备1。因此，当设备1接收到PSCCH时需要能够分辨出设备2发送的是哪一种信息。
以下假设发送设备自行决定使用PSCCH承载反馈信息或者使用由PSCCH调度的PSSCH承载反馈信息，并将结果通知给反馈信息的接收设备。
在一个实施例中，由第一边链路控制信息格式的指示字段指示如下之一：所述边链路控制信道中承载所述反馈信息；所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
例如，可以只定义一种SCI format，为便于说明，将其记为SCI format z。SCI format z中的某一指示字段用于指示是图3中四种情况中的哪一种，例如该字段使用2比特指示四种情况中的一种。
图5是本发明实施例的边链路控制信息格式的一示例图。如图5所示，“00”、“01”、“10”、“11”分别对应图3中的1)、2)、3)、4)四种情况。根据指示字段的不同取值，SCI format z的其他字段相应地可以有不同的含义和解读。
当指示字段为“00”时，反馈信息承载在SCI的其他全部或部分字段内。
当指示字段为“01”时，反馈信息承载在该SCI调度的PSSCH内，SCI format z的其他全部和部分字段用于指示PSSCH的时频资源位置、MCS等解调反馈信息的必要信息。
当指示字段为“10”时，反馈信息连同数据信息承载在该SCI调度的PSSCH内，SCI format z的其他全部和部分字段用于指示PSSCH的时频资源位置、数据信息和反馈信息所占资源粒子(RE，Resource Element)的比例、数据信息和反馈信息的MCS、数据信息的优先级等用于解调数据信息和反馈信息的必要信息。
当指示字段为“11”时，数据信息承载在该SCI调度的PSSCH内，SCI format z的其他全部和部分字段用于指示PSSCH的时频资源位置、MCS、优先级等用于解调数据信息的必要信息。
在一个实施例中，对于所述指示字段的不同取值，所述边链路控制信息格式中的不同于所述指示字段的其他字段是独立的。此处“独立”可以理解为可以相同，也可以不同，不存在对应或依赖关系。
图6是图5的边链路控制信息格式的另一示例图。如图6所示，对于不同的指示字段取值，SCI format z中的其他字段可以独立进行定义。例如，图6中指示字段为“00”的SCI其他字段(例如字段1、字段2、字段3……)和指示字段为“01”的SCI其他字段(例如字段1、字段2、字段3……)可以不同。
当指示字段取值不同时，SCI format z的其他字段可以重新进行定义和划分，即其他字段的定义可以不同。或者SCI format z始终使用一种统一的字段划分，即其他字段的定义可以相同，对于不同指示字段取值，一些相关字段被使用，其他不相关字段被保留。
值得注意的是，SCI中的指示字段可以位于SCI头部，或者位于SCI中某一固定位置。通过固定指示字段的位置，接收设备可以在不知道全部字段的划分和定义的条件下，先读取指示字段，然后根据指示字段的取值确定其他字段的划分和定义。由此，没有增加接收设备的盲检复杂度，在统一的PSCCH结构下可以支持对不同类型信息传输的指示。
此外，图3中的四种情况也可以不被全部支持，例如如果不支持同时发送反馈信息和数据信息(图3中的第三种情况)，则相应地在实施过程中去掉上述与第三种情况相关的内容。由于接收设备仍然需要区分图3中的3种情形，SCI中的指示字段仍然需要2比特。
又例如，接收设备可以指示发送设备在某一时频资源发送HARQ-ACK，在这种情况下，发送设备可以在PSCCH中发送HARQ-ACK，也可以在PSCCH调度的PSSCH中发送HARQ-ACK，或者可以在PSCCH调度的PSSCH中发送HARQ-ACK和数据，因此接收设备也需要对上述情况进行识别，例如可以对上述实施方式稍作修改，在SCI中使用2比特指示字段，并去掉上述与第四种情况相关的内容。当图3中仅有两种情况发生时，例如接收设备需要分辨接收到的PSCCH用于携带HARQ-ACK，还 是用于调度数据，可以在SCI中使用1比特的指示字段。
在一个实施例中，由不同标识对第一边链路控制信息格式的循环冗余校验(CRC，Cyclic Redundancy Check)进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特(例如所有的比特)进行加扰，以指示如下之一：所述边链路控制信道中承载所述反馈信息；所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；所述边链路控制信道所指示的所述边链路数据信道中承载有所述第二数据信息而不承载所述反馈信息。
例如，仍使用一种SCI format指示图3中的四种情况，与之前图5的实施方式不同，这里不在SCI中预留一个指示字段，而是使用不同的ID对SCI的CRC进行加扰，或者由基于不同ID生成的序列对SCI整体进行加扰。对于将ID作为初始值或种子生成伪随机序列，可以沿用相关任一种方法，例如可以使用TS 38.211中5.2.1小节方法，在此不一一列举。
例如，ID 0、ID 1、ID 2和ID 3与图3中的四种情况具有一一对应关系；接收设备盲检SCI，并尝试使用ID 0～ID 3对SCI的CRC进行解扰，之后进行CRC校验；或者，接收设备尝试使用ID 0～ID 3对SCI进行解扰，之后进行信道译码及CRC校验，哪一ID能够通过CRC校验，代表该SCI指示的是与该ID相关联的图3中的哪种情况。如果图3的四种情况不被全部支持，则相应地减少可用的ID数目。
在一个实施例中，由第二边链路控制信息格式的指示字段指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由第三边链路控制信息格式的指示字段指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
例如，可以定义两种不同长度(size)的SCI，实际上也等价于定义两种不同的SCI格式(SCI format)，记为SCI format x和SCI format y。SCI format x用于指示发送的反馈信息，SCI format y用于指示发送的数据信息。
图7是本发明实施例的边链路控制信息格式的另一示例图；图8是图7的边链路控制信息格式的另一示例图。例如，设备1在可能接收反馈信息的时刻盲检SCI format  x，SCI format x中1比特的指示字段用于指示反馈信息承载在SCI format x内(例如该比特置“0”)，还是承载在SCI format x调度的PSSCH内(例如该比特置“1”)。
当反馈信息承载在SCI format x内时，SCI format x中的至少一个字段承载反馈信息，上述字段可以重用反馈信息承载在SCI调度的PSSCH时的SCI某些字段，这是因为当反馈信息不由PSSCH承载时，某些字段(例如PSSCH的时频资源分配、MCS、优先级等)没有实际用处，因此可以被重新解读和利用。
如图7所示，根据指示反馈信息由PSCCH还是PSSCH承载的字段的不同取值，SCI format x的其他字段相应地可以有不同的含义和解读。如图8所示，对于不同的指示字段取值，SCI format x和SCI format y中的其他字段可以独立进行定义。
值得注意的是，SCI中的指示字段可以位于SCI头部，或者位于SCI中某一固定位置。设备1在盲检SCI format x的同时也要盲检SCI format y，SCI format y中的1比特的字段用于指示：SCI format y调度的PSSCH中同时承载反馈信息和数据信息(例如该比特置“0”)，还是仅承载了数据信息(例如该比特置“1”)。由此，对于包含较少比特的反馈信息，可以使用短的SCI直接进行承载，从而节省了SCI开销。
此外，图3中的四种情况也可能不被全部支持，例如如果不支持同时发送反馈信息和数据信息(图3中的第三种情况)，则实施过程中与第三种情况相关的内容进行相应修改，例如此时SCI format y不需要指示字段。
例如，当设备1指示设备2在某一时频资源发送HARQ-ACK时，设备2可以在PSCCH中发送HARQ-ACK，也可以在PSCCH调度的PSSCH中发送HARQ-ACK，或者可以在PSCCH调度的PSSCH中发送HARQ-ACK和数据，因此设备1也需要对上述情况进行识别，例如可以对上述实施方式稍作修改，去掉上述与图3中的第四种情况相关的内容，并且SCI format y不需要指示字段。当图3中仅有两种情况发生时，例如设备1需要分辨接收到的PSCCH用于携带HARQ-ACK，还是用于调度数据，可以分别使用SCI format x和SCI format y两种长度的SCI，并且SCI format x和SCI format y均不需要指示字段。
在一个实施例中，由不同标识对第二边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特(例如所有比特)进行加扰，以指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数 据信息；和/或
由不同标识对第三边链路控制信息格式的循环冗余校验进行加扰，或由基于不同标识生成的序列对边链路控制信息格式所包含的比特(例如所有比特)进行加扰，以指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
例如，使用SCI format x和SCI format y两种不同长度的SCI，但不在SCI中预留和使用指示字段对图3的不同情况进行指示，而是使用不同的ID对SCI的CRC进行加扰，或者，由基于不同ID生成的序列对SCI所有比特进行加扰。例如对于SCI format x，不同的加扰ID能够指示反馈信息通过PSCCH或PSSCH承载，对于SCI format y，不同的加扰ID能够指示PSSCH中除数据信息外是否还包含了反馈信息。当图3的四种情况不被全部支持时，可以相应地减少可用的ID数目。
在一个实施例中，由第四边链路控制信息格式的指示字段指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
由第五边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
例如，可以定义两种不同长度(size)的SCI，即定义两种SCI format，记为SCI format w和SCI format v。SCI format w用于指示发送反馈信息情形(图3中的第一种至第三种情况)，SCI format v用于指示仅发送数据信息情形(图3中的第四种情况)。
SCI format w中的2比特的指示字段可以用于对图3中的第一至第三种情况进行指示。根据指示字段的不同取值，SCI format w的其他字段相应地可以有不同的含义和解读。
值得注意的是，SCI中的指示字段可以位于SCI头部，或者位于SCI中某一固定位置。设备1在盲检SCI format w的同时也要盲检SCI format v，SCI format v仅调度数据信息，不需要预留和使用指示字段。
此外，图3中的四种情况也可能不被全部支持，例如如果不支持同时发送反馈信息和数据信息(图3中的第三种情况)，则实施过程中与第三种情况相关的内容可以 进行相应修改，例如此时SCI format w中1比特的指示字段用于对图3中的第一和第二种情况进行指示。
在一个实施例中，由不同标识对第四边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特(例如所有比特)进行加扰，以指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
由第五边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
例如，可以定义具有不同长度的SCI format w和SCI format v，SCI format w不使用指示字段，而是通过使用不同的ID对CRC进行加扰，或者，由基于不同ID生成的序列对SCI所有比特进行加扰，实现对图3中第一至第三种情况的区分，SCI format v用于指示仅发送数据信息情形(图3中的第四种情况)，不需要指示字段，也可以不使用ID加扰。当图3的四种情况不被全部支持时，可以相应地减少可用的ID数目。
以下假设根据反馈信息比特数与某一阈值的比较结果，决定使用PSCCH承载反馈信息或者使用由PSCCH调度的PSSCH承载反馈信息，由于收发设备均已知阈值和反馈信息的比特数，收发设备也都已知某一反馈信息使用PSCCH还是PSSCH进行发送。
在一个实施例中，由第六边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或；由第七边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或；由第八边链路控制信息格式的指示字段指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
例如，可以定义3种不同长度的SCI，即3种SCI format，记为SCI format r、SCI format s和SCI format t。其中SCI format r和SCI format s分别用于指示图3中的第一和第二种情况，而SCI format t用于指示图3中的第三和第四种情况。
基于图4，设备1知道设备2在某一时刻使用PSCCH还是PSSCH发送反馈信息。 当设备1认为设备2将在某一时刻使用PSCCH发送反馈信息时，设备1盲检SCI format r和SCI format t。当设备1认为设备2将在某一时刻使用PSSCH发送反馈信息时，设备1盲检SCI format s和SCI format t。
图9是本发明实施例的边链路控制信息格式的另一示例图。如图9所示，SCI format t中1比特的字段用于指示：SCI format t调度的PSSCH中同时承载反馈信息和数据信息(例如该比特置“0”)，还是仅承载了数据信息(例如该比特置“1”)。SCI format r和SCI format s中没有指示字段，对于SCI format t中的不同指示字段取值，SCI format t中的其他字段可以独立进行定义。
值得注意的是，SCI中的指示字段可以位于SCI头部，或者位于SCI中某一固定位置。尽管定义了3种SCI format，由于设备1具有一定的先验信息，事先已知某一时刻设备2使用PSCCH还是PSSCH发送反馈信息，在某一时刻，设备1只需要盲检2种SCI format，降低了盲检复杂度。
此外，图3中的四种情况也可能不被全部支持，例如如果不支持同时发送反馈信息和数据信息(图1中的第三种情况)，则实施过程中与第三种情况相关的内容可以进行相应修改，例如此时SCI format z不需要指示字段。
在一个实施例中，由第六边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或；由第七边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或；由不同标识对第八边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特(例如所有比特)进行加扰，以指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
例如，可以定义3种不同长度的SCI，即SCI format r、SCI format s和SCI format t，与图9的所示实施方式类似。与图9的所示实施方式不同之处在于，这里SCI format t不预留和使用指示字段，而是使用不同的ID对SCI format t的CRC进行加扰，或者，由基于不同ID生成的序列对SCI所有比特进行加扰，从而可以区分SCI format t调度的PSSCH中同时承载反馈信息和数据信息，还是仅承载数据信息。当图3的四种情况不被全部支持时，也可以通过减少ID或不使用ID的方式容易地进行扩展和修改。
在一个实施例中，由第九边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或；由第十边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或；由第十一边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或；由第十二边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
例如，可以定义最多4种不同长度的SCI，分别对应图3的四种情况。接收设备通过对不同长度SCI的盲检，即可分辨出图3的不同情况。当图3的四种情况不被全部支持时，可以相应地减少不同长度SCI的数目。
值得注意的是，以上附图5至9仅对本发明实施例进行了示意性说明，但本发明不限于此。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图5至9的记载。
以上各个实施例或实施方式仅对本发明实施例进行了示例性说明，但本发明不限于此，还可以在以上各个实施例或实施方式的基础上进行适当的变型。例如，可以单独使用上述各个实施例或实施方式，也可以将以上各个实施例或实施方式中的一种或多种结合起来。
由上述实施例可知，将反馈信息承载在边链路控制信道或者边链路数据信道中；由此，能够在V2X中支持反馈信息的发送和上报，满足不同场景和不同业务的需求。
此外，本发明实施例提供在NR V2X中发送反馈信息(例如HARQ-ACK和/或CSI)的方案。该反馈信息可以通过PSCCH承载，也可以通过与PSCCH关联的PSSCH承载，发送设备根据SCI大小(size)和/或SCI中的字段(field)来确定反馈信息承载在PSCCH和/或PSSCH；因此可以提供对不同反馈负荷(HARQ-ACK和/或CSI的比特数目)的灵活支持，提高反馈信息的传输效率。
实施例2
本发明实施例提供一种反馈信息的接收方法，从接收设备(第一设备)侧进行说明，与实施例1相同的内容不再赘述。其中该接收设备可以是终端设备，但本发明不限于此，例如也可以是路侧设备或者网络设备。
图10是本发明实施例的反馈信息的接收方法的示意图，示出了接收设备侧的情况。如图10所示，该方法包括：
步骤1001，第一设备向第二设备发送第一数据信息和/或参考信号；以及
步骤1002，所述第一设备接收所述第二设备发送的针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
值得注意的是，以上附图10仅对本发明实施例进行了示意性说明，但本发明不限于此。例如可以适当地调整各个步骤之间的执行顺序，此外还可以增加其他的一些步骤或者减少其中的某些步骤。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图10的记载。
在一个实施例中，所述反馈信息包括如下至少之一：混合自动重传请求确认信息(HARQ-ACK)、信道状态信息(CSI)、调制和编码方案(MCS)、信道质量指示(CQI)、预编码矩阵指示(PMI)、秩指示(RI)、波束信息。
在一个实施例中，使用所述边链路控制信道的至少一种边链路控制信息格式承载或指示所述反馈信息。
在一个实施例中，通过所述至少一种边链路控制信息格式中的指示字段或者通过对所述至少一种边链路控制信息格式的加扰，来区分所述边链路控制信道或者所述边链路数据信道中的所述反馈信息和/或第二数据信息。
在一个实施例中，由第一边链路控制信息格式的指示字段指示如下之一：所述边链路控制信道中承载所述反馈信息；所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
在一个实施例中，由不同标识对第一边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特(例如所有比特)进行加扰，以指示如下之一：所述边链路控制信道中承载所述反馈信息；所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；所述边链路控制信道所指示的所述边链路数据信道中承载有所 述第二数据信息而不承载所述反馈信息。
在一个实施例中，由第二边链路控制信息格式的指示字段指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由第三边链路控制信息格式的指示字段指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
在一个实施例中，由不同标识对第二边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特(例如所有比特)进行加扰，以指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由不同标识对第三边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特(例如所有比特)进行加扰，以指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
在一个实施例中，由第四边链路控制信息格式的指示字段指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
由第五边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
在一个实施例中，由不同标识对第四边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特(例如所有比特)进行加扰，以指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
由第五边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
在一个实施例中，由第六边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
由第七边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由第八边链路控制信息格式的指示字段指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
在一个实施例中，由第六边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
由第七边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由不同标识对第八边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特(例如所有比特)进行加扰，以指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
在一个实施例中，由第九边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或；
由第十边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或；
由第十一边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或；
由第十二边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
以上各个实施方式仅对本发明实施例进行了示例性说明，但本发明不限于此，还可以在以上各个实施方式的基础上进行适当的变型。例如，可以单独使用上述各个实施方式，也可以将以上各个实施方式中的一种或多种结合起来。
由上述实施例可知，将反馈信息承载在边链路控制信道或者边链路数据信道中；由此，能够在V2X中支持反馈信息的发送和上报，满足不同场景和不同业务的需求。
实施例3
本发明实施例提供一种反馈信息的发送装置。该装置例如可以是终端设备，也可以是配置于终端设备的某个或某些部件或者组件。但本发明不限于此，例如可以是路侧设备或者网络设备，也可以是配置于路侧设备或者网络设备的某个或某些部件或者组件。本实施例3与实施例1相同的内容不再赘述。
图11是本发明实施例的反馈信息的发送装置的示意图，如图11所示，反馈信息的发送装置1100包括：
信号接收单元1101，其接收第一设备发送的第一数据信息和/或参考信号；以及
信息反馈单元1102，其向所述第一设备发送针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
如图11所示，反馈信息的发送装置1100还可以包括：
大小确定单元1103，其确定所述反馈信息的大小是否大于预设阈值；以及
所述信息反馈单元1102还用于：在所述反馈信息的大小大于所述预设阈值的情况下使用所述边链路数据信道承载所述反馈信息，在所述反馈信息的大小小于或等于所述预设阈值的情况下使用所述边链路控制信道承载所述反馈信息。
值得注意的是，以上仅对与本发明相关的各部件或模块进行了说明，但本发明不限于此。反馈信息的发送装置1100还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图11中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本发明实施并不对此进行限制。
由上述实施例可知，将反馈信息承载在边链路控制信道或者边链路数据信道中；由此，能够在V2X中支持反馈信息的发送和上报，满足不同场景和不同业务的需求。
实施例4
本发明实施例提供一种反馈信息的接收装置。该装置例如可以是终端设备，也可以是配置于终端设备的某个或某些部件或者组件。但本发明不限于此，例如可以是路侧设备或者网络设备，也可以是配置于路侧设备或者网络设备的某个或某些部件或者组件。本实施例4与实施例2相同的内容不再赘述。
图12是本发明实施例的反馈信息的接收装置的示意图，如图12所示，反馈信息的接收装置1200包括：
信号发送单元1201，其向第二设备发送第一数据信息和/或参考信号；以及
信息接收单元1202，其接收所述第二设备发送的针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
值得注意的是，以上仅对与本发明相关的各部件或模块进行了说明，但本发明不限于此。反馈信息的接收装置1200还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图12中仅示例性示出各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本发明实施并不对此进行限制。
由上述实施例可知，将反馈信息承载在边链路控制信道或者边链路数据信道中；由此，能够在V2X中支持反馈信息的发送和上报，满足不同场景和不同业务的需求。
实施例5
本发明实施例还提供一种通信系统，可以参考图1，与实施例1至4相同的内容不再赘述。在本实施例中，通信系统100可以包括：
终端设备102，其配置有如实施例3所述的反馈信息的发送装置1100或者如实施例4所述的反馈信息的接收装置1200。
网络设备101，其为终端设备102提供服务。
本发明实施例还提供一种网络设备，例如可以是基站，但本发明不限于此，还可以是其他的网络设备。
图13是本发明实施例的网络设备的构成示意图。如图13所示，网络设备1300可以包括：处理器1310(例如中央处理器CPU)和存储器1320；存储器1320耦合到处理器1310。其中该存储器1320可存储各种数据；此外还存储信息处理的程序1330，并且在处理器1310的控制下执行该程序1330。
此外，如图13所示，网络设备1300还可以包括：收发机1340和天线1350等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备1300也并不是必须要包括图13中所示的所有部件；此外，网络设备1300还可以包括图13中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种终端设备，但本发明不限于此，还可以是其他的设备。
图14是本发明实施例的终端设备的示意图。如图14所示，该终端设备1400可以包括处理器1410和存储器1420；存储器1420存储有数据和程序，并耦合到处理器1410。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
例如，处理器1410可以被配置为执行程序而实现如实施例1所述的反馈信息的发送方法。例如处理器1410可以被配置为进行如下的控制：接收第一设备发送的第一数据信息和/或参考信号；以及向所述第一设备发送针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
再例如，处理器1410可以被配置为执行程序而实现如实施例2所述的反馈信息的接收方法。例如处理器1410可以被配置为进行如下的控制：向第二设备发送第一数据信息和/或参考信号；以及接收所述第二设备发送的针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
如图14所示，该终端设备1400还可以包括：通信模块1430、输入单元1440、显示器1450、电源1460。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，终端设备1400也并不是必须要包括图14中所示的所有部件，上述部件并不是必需的；此外，终端设备1400还可以包括图14中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种计算机程序，其中当在终端设备中执行所述程序时，所 述程序使得所述终端设备执行实施例1所述的反馈信息的发送方法或实施例2所述的反馈信息的接收方法。
本发明实施例还提供一种存储有计算机程序的存储介质，其中所述计算机程序使得终端设备执行实施例1所述的反馈信息的发送方法或实施例2所述的反馈信息的接收方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本发明实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本发明所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。
关于包括以上实施例的实施方式，还公开下述的附记：
附记1、一种反馈信息的发送方法，包括：
第二设备接收第一设备发送的第一数据信息和/或参考信号；以及
所述第二设备向所述第一设备发送针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
附记2、根据附记1所述的方法，其中，所述反馈信息包括如下至少之一：混合自动重传请求确认信息(HARQ-ACK)、信道状态信息(CSI)、调制和编码方案(MCS)、信道质量指示(CQI)、预编码矩阵指示(PMI)、秩指示(RI)、波束信息。
附记3、根据附记1或2所述的方法，其中，使用所述边链路控制信道的至少一种边链路控制信息格式承载或指示所述反馈信息。
附记4、根据附记3所述的方法，其中，通过所述至少一种边链路控制信息格式中的指示字段，来区分所述边链路控制信道或者所述边链路数据信道中的所述反馈信息和/或第二数据信息。
附记5、根据附记4所述的方法，其中，对于所述指示字段的不同取值，所述边链路控制信息格式中的不同于所述指示字段的其他字段是独立的。
附记6、根据附记3所述的方法，其中，通过对所述至少一种边链路控制信息格式的加扰，来区分所述边链路控制信道或者所述边链路数据信道中的所述反馈信息和/或第二数据信息。
附记7、根据附记1至6任一项所述的方法，其中，由第一边链路控制信息格式的指示字段指示如下之一：
所述边链路控制信道中承载所述反馈信息；
所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；
所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；
所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记8、根据附记1至6任一项所述的方法，其中，由不同标识对第一边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示如下之一：
所述边链路控制信道中承载所述反馈信息；
所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；
所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；
所述边链路控制信道所指示的所述边链路数据信道中承载有所述第二数据信息而不承载所述反馈信息。
附记9、根据附记1至6任一项所述的方法，其中，由第二边链路控制信息格式的指示字段指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由第三边链路控制信息格式的指示字段指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记10、根据附记1至6任一项所述的方法，其中，由不同标识对第二边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由不同标识对第三边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记11、根据附记1至6任一项所述的方法，其中，由第四边链路控制信息格式的指示字段指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
由第五边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记12、根据附记1至6任一项所述的方法，其中，由不同标识对第四边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
由第五边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记13、根据附记1至6任一项所述的方法，其中，由第六边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
由第七边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由第八边链路控制信息格式的指示字段指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记14、根据附记1至6任一项所述的方法，其中，由第六边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
由第七边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由不同标识对第八边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据 信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记15、根据附记1至6任一项所述的方法，其中，由第九边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
由第十边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由第十一边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
由第十二边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记16、根据附记1至15任一项所述的方法，其中，所述方法还包括：
所述第二设备确定所述反馈信息的大小是否大于预设阈值；以及
在所述反馈信息的大小大于所述预设阈值的情况下使用所述边链路数据信道承载所述反馈信息，在所述反馈信息的大小小于或等于所述预设阈值的情况下使用所述边链路控制信道承载所述反馈信息。
附记17、一种反馈信息的接收方法，包括：
第一设备向第二设备发送第一数据信息和/或参考信号；以及
所述第一设备接收所述第二设备发送的针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
附记18、根据附记17所述的方法，其中，所述反馈信息包括如下至少之一：混合自动重传请求确认信息(HARQ-ACK)、信道状态信息(CSI)、调制和编码方案(MCS)、信道质量指示(CQI)、预编码矩阵指示(PMI)、秩指示(RI)、波束信息。
附记19、根据附记17或18所述的方法，其中，使用所述边链路控制信道的至少一种边链路控制信息格式承载或指示所述反馈信息。
附记20、根据附记19所述的方法，其中，通过所述至少一种边链路控制信息格式中的指示字段，来区分所述边链路控制信道或者所述边链路数据信道中的所述反馈信息和/或第二数据信息。
附记21、根据附记20所述的方法，其中，对于所述指示字段的不同取值，所述边链路控制信息格式中的不同于所述指示字段的其他字段是独立的。
附记22、根据附记19所述的方法，其中，通过对所述至少一种边链路控制信息格式的加扰，来区分所述边链路控制信道或者所述边链路数据信道中的所述反馈信息和/或第二数据信息。
附记23、根据附记17至22任一项所述的方法，其中，由第一边链路控制信息格式的指示字段指示如下之一：
所述边链路控制信道中承载所述反馈信息；
所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；
所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；
所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记24、根据附记17至22任一项所述的方法，其中，由不同标识对第一边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示如下之一：
所述边链路控制信道中承载所述反馈信息；
所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；
所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；
所述边链路控制信道所指示的所述边链路数据信道中承载有所述第二数据信息而不承载所述反馈信息。
附记25、根据附记17至22任一项所述的方法，其中，由第二边链路控制信息格式的指示字段指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由第三边链路控制信息格式的指示字段指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记26、根据附记17至22任一项所述的方法，其中，由不同标识对第二边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由不同标识对第三边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记27、根据附记17至22任一项所述的方法，其中，由第四边链路控制信息格式的指示字段指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
由第五边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记28、根据附记17至22任一项所述的方法，其中，由不同标识对第四边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
由第五边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记29、根据附记17至22任一项所述的方法，其中，由第六边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
由第七边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由第八边链路控制信息格式的指示字段指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记30、根据附记17至22任一项所述的方法，其中，由第六边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
由第七边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由不同标识对第八边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记31、根据附记17至22任一项所述的方法，其中，由第九边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
由第十边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
由第十一边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
由第十二边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
附记32、一种终端设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记1至16任一项所述的反馈信息的发送方法，或者，如附记17至31任一项所述的反馈信息的接收方法。

Claims (20)

  1. 一种反馈信息的发送装置，包括：
    信号接收单元，其接收第一设备发送的第一数据信息和/或参考信号；以及
    信息反馈单元，其向所述第一设备发送针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
  2. 根据权利要求1所述的装置，其中，所述反馈信息包括如下至少之一：混合自动重传请求确认信息、信道状态信息、调制和编码方案、信道质量指示、预编码矩阵指示、秩指示、波束信息。
  3. 根据权利要求1所述的装置，其中，使用所述边链路控制信道的至少一种边链路控制信息格式承载或指示所述反馈信息。
  4. 根据权利要求3所述的装置，其中，通过所述至少一种边链路控制信息格式中的指示字段，来区分所述边链路控制信道或者所述边链路数据信道中的所述反馈信息和/或第二数据信息。
  5. 根据权利要求4所述的装置，其中，对于所述指示字段的不同取值，所述边链路控制信息格式中的不同于所述指示字段的其他字段是独立的。
  6. 根据权利要求3所述的装置，其中，通过对所述至少一种边链路控制信息格式的加扰，来区分所述边链路控制信道或者所述边链路数据信道中的所述反馈信息和/或第二数据信息。
  7. 根据权利要求1所述的装置，其中，由第一边链路控制信息格式的指示字段指示如下之一：
    所述边链路控制信道中承载所述反馈信息；
    所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；
    所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；
    所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
  8. 根据权利要求1所述的装置，其中，由不同标识对第一边链路控制信息格式 的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示如下之一：
    所述边链路控制信道中承载所述反馈信息；
    所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；
    所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；
    所述边链路控制信道所指示的所述边链路数据信道中承载有所述第二数据信息而不承载所述反馈信息。
  9. 根据权利要求1所述的装置，其中，由第二边链路控制信息格式的指示字段指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
    由第三边链路控制信息格式的指示字段指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
  10. 根据权利要求1所述的装置，其中，由不同标识对第二边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
    由不同标识对第三边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
  11. 根据权利要求1所述的装置，其中，由第四边链路控制信息格式的指示字段指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信 息；和/或
    由第五边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
  12. 根据权利要求1所述的装置，其中，由不同标识对第四边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道中承载所述反馈信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
    由第五边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
  13. 根据权利要求1所述的装置，其中，由第六边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
    由第七边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
    由第八边链路控制信息格式的指示字段指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
  14. 根据权利要求1所述的装置，其中，由第六边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
    由第七边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
    由不同标识对第八边链路控制信息格式的循环冗余校验进行加扰，或者，由基于不同标识生成的序列对边链路控制信息格式所包含的比特进行加扰，以指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息，或者，所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
  15. 根据权利要求1所述的装置，其中，由第九边链路控制信息格式指示：所述边链路控制信道中承载所述反馈信息；和/或
    由第十边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息而不承载第二数据信息；和/或
    由第十一边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述反馈信息以及所述第二数据信息；和/或
    由第十二边链路控制信息格式指示：所述边链路控制信道所指示的所述边链路数据信道中承载所述第二数据信息而不承载所述反馈信息。
  16. 根据权利要求1所述的装置，其中，所述装置还包括：
    大小确定单元，其确定所述反馈信息的大小是否大于预设阈值；以及
    所述信息反馈单元还用于：在所述反馈信息的大小大于所述预设阈值的情况下使用所述边链路数据信道承载所述反馈信息，在所述反馈信息的大小小于或等于所述预设阈值的情况下使用所述边链路控制信道承载所述反馈信息。
  17. 一种反馈信息的接收装置，包括：
    信号发送单元，其向第二设备发送第一数据信息和/或参考信号；以及
    信息接收单元，其接收所述第二设备发送的针对所述第一数据信息和/或所述参考信号的反馈信息，其中所述反馈信息承载在边链路控制信道或者边链路数据信道中。
  18. 根据权利要求17所述的装置，其中，使用所述边链路控制信道的至少一种边链路控制信息格式承载或指示所述反馈信息。
  19. 根据权利要求18所述的装置，其中，通过所述至少一种边链路控制信息格式中的指示字段或者通过对所述至少一种边链路控制信息格式的加扰，来区分所述边链路控制信道或者所述边链路数据信道中的所述反馈信息和/或第二数据信息。
  20. 一种通信系统，包括：
    第一设备，其包括如权利要求17所述的反馈信息的接收装置；以及
    第二设备，其包括如权利要求1所述的反馈信息的发送装置。
PCT/CN2018/107996 2018-09-27 2018-09-27 反馈信息的发送和接收方法以及装置 WO2020061913A1 (zh)

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CN105813204A (zh) * 2014-12-31 2016-07-27 中兴通讯股份有限公司 资源池配置方法及设备
CN106793092A (zh) * 2015-11-19 2017-05-31 中兴通讯股份有限公司 控制信道资源的获取方法及设备
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CN105813204A (zh) * 2014-12-31 2016-07-27 中兴通讯股份有限公司 资源池配置方法及设备
CN106793092A (zh) * 2015-11-19 2017-05-31 中兴通讯股份有限公司 控制信道资源的获取方法及设备
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