WO2021147864A1 - 确定旁链路反馈信息的方法和通信设备 - Google Patents
确定旁链路反馈信息的方法和通信设备 Download PDFInfo
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- WO2021147864A1 WO2021147864A1 PCT/CN2021/072729 CN2021072729W WO2021147864A1 WO 2021147864 A1 WO2021147864 A1 WO 2021147864A1 CN 2021072729 W CN2021072729 W CN 2021072729W WO 2021147864 A1 WO2021147864 A1 WO 2021147864A1
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1854—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1614—Details of the supervisory signal using bitmaps
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
Definitions
- the present invention relates to the field of communication, and in particular to a method and communication equipment for determining side link feedback information.
- NR New Radio
- SL Sidelink
- HARQ Hybrid Automatic Repeat Request
- the process of the SL HARQ feedback mechanism may include: after the SL receives the SL data from the user, it feeds back the SL HARQ feedback information to indicate whether the transmission of the SL is successful or failed.
- the SL sending user can learn whether the previous SL transmission is successful after receiving the SL HARQ feedback information on the SL.
- an SL user may be a sending user or a receiving user, that is, the same user can receive or send separately in different time or frequency domains;
- SL HARQ feedback information includes positive acknowledgement (ACK) information and negative acknowledgement (Negative Acknowledgement, NACK) information.
- the transmission of the SL data packet may be performed on the SL between the user and the user. Therefore, the control node may not be able to directly know whether the transmission of the SL data packet is successful, and the user needs to send the SL HARQ feedback information to the control node , So that the control node can further determine whether the transmission on the SL is successful.
- a solution for determining the feedback information of the side link is needed to realize efficient and reliable HARQ feedback on the side link, so as to accurately reflect whether the data transmission on the side link is successful.
- One of the technical problems solved by the embodiments of the present invention is how to realize efficient and reliable HARQ feedback on the side link.
- an embodiment of the present invention provides a method for determining sidelink feedback information, which is applied to a communication device, and the method includes:
- an embodiment of the present invention provides a communication device, and the communication device includes:
- the determining module is configured to determine the side link hybrid automatic repeat request SL HARQ feedback information based on the target physical side link feedback channel PSFCH resource set associated with the target uplink channel, wherein the target PSFCH resource set is determined based on the target time interval,
- the target time interval is the interval between the target uplink channel and the PSFCH.
- an embodiment of the present invention provides a communication device, including: a memory, a processor, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor When realizing the steps of the method as described in the first aspect.
- an embodiment of the present invention provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method described in the first aspect are implemented .
- the target time interval between the target uplink channel and the physical sidelink feedback channel PSFCH can be used to accurately derive the target PSFCH resource set associated with the target uplink channel to establish the target uplink channel and Based on the mapping relationship between the target PSFCH resource set, the SL HARQ feedback information corresponding to the target PSFCH resource set can be mapped to the target uplink channel for reporting. In this way, efficient and reliable HARQ feedback on the side link is realized, so that the receiver of the SL HARQ feedback information can accurately know whether the data transmission on the side link is successful, thereby improving the reliability and resource utilization of data transmission on the SL Rate.
- FIG. 1 is a schematic flowchart of a method for determining side link feedback information in an embodiment of the present invention
- FIG. 2 is a schematic flowchart of a method for determining a target PSFCH resource set in an embodiment of the present invention
- FIG. 3 is a schematic diagram of the corresponding relationship between side link channel resources in a scenario where Uu SCS and SL SCS are equal in an embodiment of the present invention
- FIG. 4 is a schematic diagram of the corresponding relationship between side link channel resources in a scenario where Uu SCS is greater than SL SCS in an embodiment of the present invention
- FIG. 5 is a schematic diagram of a side link channel resource corresponding relationship in a scenario where Uu SCS is smaller than SL SCS in an embodiment of the present invention
- FIG. 6 is a schematic diagram of another side link channel resource corresponding relationship in a scenario where Uu SCS is smaller than SL SCS in an embodiment of the present invention
- Figure 7 is a schematic structural diagram of a communication device in an embodiment of the present invention.
- FIG. 8 is a schematic structural diagram of a terminal device in an embodiment of the present invention.
- Fig. 9 is a schematic structural diagram of a network device in an embodiment of the present invention.
- GSM Global System of Mobile Communication
- CDMA Code Division Multiple Access
- GSM Wideband Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE-A Long Term Evolution/Enhanced Long Term Evolution
- NR NR
- User-side UE which can also be called terminal equipment (Mobile Terminal), mobile user equipment, etc.
- RAN radio access network
- the user equipment can be a terminal device
- they can be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and information with wireless access networks. / Or data.
- Network equipment also called a base station
- BTS Base Transceiver Station
- NodeB base station
- evolutional Node B evolutional Node B
- LTE Long Term Evolution
- ENB e-NodeB
- gNB 5G base station
- NR SL supports three transmission modes: broadcast, multicast, and unicast.
- NR SL's multicast transmission mode supports two use cases, connection-based multicast and connectionless multicast.
- the connection-based multicast mode refers to the scenario where a connection is established between multicast UEs, and it is based on connectionless multicast.
- the mode refers to a scenario where the multicast UE does not know other UEs in the group and has not established a connection.
- multiple receivers support two mechanisms when performing HARQ feedback:
- Mechanism 1 (option1 NACK-only feedback, or no connection mechanism connection-less): If the data is received but cannot be solved, the NACK information will be fed back, and no feedback in other cases. In this case, if the sender does not receive the NACK, it is considered that all receivers have successfully received and decoded the data. This method is suitable for connectionless multicast scenarios.
- Mechanism 2 (option 2 ACK/NACK feedback, or connection-based connection mechanism): If the data is received but cannot be solved, or if the sidelink control information (SCI) is received but no data is received, Then NACK information is fed back, and if the data is received and solved correctly, ACK information is fed back. At this time, if the sender receives a NACK from a receiving user, or does not receive an ACK or NACK, the sender considers that the transmission of the receiving user has failed; if it receives an ACK from a receiver, the sender It is considered that the transmission sent to the receiving end user is successful, and if ACKs from all receiving ends are received, the corresponding transport block (Transport Block, TB) is considered to be successful.
- This method is suitable for connection-based multicast scenarios.
- an embodiment of the present invention provides a method for determining sidelink feedback information, which is executed by a communication device, and the communication device may be a network device or a terminal device.
- the method includes the following process steps:
- Step 101 Determine the sidelink hybrid automatic repeat request SL HARQ feedback information based on the target physical sidelink feedback channel PSFCH resource set associated with the target uplink channel, where the target PSFCH resource set is determined based on the target time interval, and the target time interval It is the interval between the target uplink channel and the target PSFCH.
- the foregoing target uplink channel is used to transmit SL HARQ feedback information, and may include a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).
- the target uplink channel can be allocated by the network device.
- the target time interval between the target uplink channel and the target physical sidelink feedback channel includes the slot interval, such as 0 slot to 15 slots, which can be configured or indicated by the network device .
- the feedback position of the SL HARQ feedback information corresponding to each PSFCH resource in the target PSFCH resource set on the target uplink channel can be determined.
- the target time interval may be indicated by the network equipment through Radio Resource Control (Radio Resource Control, RRC) signaling or Downlink Control Information (DCI) or other signaling.
- Radio Resource Control Radio Resource Control
- DCI Downlink Control Information
- the starting point of the aforementioned target time interval may be the starting point of the time domain resource (such as slot) where the PSFCH is located, and the ending point is the starting point of the time domain resource (such as slot) where the target uplink channel is located; it needs to be explained that,
- the start point and end point of the above-mentioned target time interval may also be other situations.
- the start point of the target time interval may be the end point of the time domain resource (such as a slot) where the PSFCH is located, or may also be the receiving time of the PSFCH.
- the above target time interval can be interpreted in terms of the air interface subcarrier interval (Uu SCS), where the air interface (Uu, U means user network interface: User to Network interface, u means universal: Universal) is used to implement UE and For communication between Evolved Universal Terrestrial Radio Access Network (EUTRAN), Sub-Carrier Spacing (SCS) can also be called PUCCH SCS or UL SCS, and Uu SCS can be PUCCH SCS or Uplink SCS, including but not limited to this.
- EUTRAN Evolved Universal Terrestrial Radio Access Network
- SCS Evolved Universal Terrestrial Radio Access Network
- SCS Evolved Universal Terrestrial Radio Access Network
- Uu SCS can also be called PUCCH SCS or UL SCS
- Uu SCS can be PUCCH SCS or Uplink SCS, including but not limited to this.
- the foregoing SL HARQ feedback information includes ACK information or NACK information, and the value of the feedback bit corresponding to the ACK information can be set to "1", and the value of the feedback bit corresponding to the NACK information can be set to "0", Alternatively, the value of the feedback bit corresponding to the ACK information may be set to "0", and the value of the feedback bit corresponding to the NACK information may be set to "1".
- the SL HARQ feedback information is transmitted in the form of an SL codebook on the target uplink channel, so that the SL HARQ feedback information corresponding to multiple data is fed back on the same resource, for example, the SL HARQ corresponding to multiple TBs
- the feedback information achieves the purpose of reducing feedback complexity; among them, an optional implementation manner is that the SL codebook can be expressed as a bitmap or a matrix.
- the method of constructing the SL codebook based on the SL HARQ feedback information determined in the embodiment of the present invention can reduce the burden of the user's reporting and coding complexity, reduce the codebook overhead, and improve the SL based on the uplink transmission feedback. The reliability of HARQ feedback information.
- the target PSFCH resource set may be a set of time domain resources, such as a set of PSFCH occasions; it may also be resources of other dimensions, such as frequency domain dimensions, carrier dimensions, terminal equipment, or user dimensions, and so on. That is, the target PSFCH resource set may be a set of resources corresponding to multiple dimensions.
- the target time interval between the target uplink channel and the physical sidelink feedback channel PSFCH can be used to accurately derive the target PSFCH resource set associated with the target uplink channel to establish the target uplink channel and Based on the mapping relationship between the target PSFCH resource set, the SL HARQ feedback information corresponding to the target PSFCH resource set can be mapped to the target uplink channel for reporting. In this way, efficient and reliable HARQ feedback on the side link is realized, so that the receiver of the SL HARQ feedback information can accurately know whether the data transmission on the side link is successful, thereby improving the reliability and resource utilization of data transmission on the SL Rate.
- the following process steps are further included to determine the target PSFCH resource set associated with the target uplink channel:
- Step 201 Determine the time domain location corresponding to the target time interval.
- Step 203 Determine the PSFCH resource set corresponding to the target uplink channel according to each time domain position.
- the feedback window of the target uplink channel that is, the above-mentioned time-domain position
- all PSFCH resources in the above-mentioned time-domain position can be determined as resources in the PSFCH resource set corresponding to the target uplink channel.
- Y2 represents the target time interval
- slot n represents the real-time domain position of the time slot where the target uplink channel is located
- the time domain position corresponding to Y2 includes the slot corresponding to (n-Y2)
- (n-Y2) The PSFCH resources (such as PSFCH occasion) in the corresponding slot all belong to the resources in the PSFCH resource set corresponding to the target uplink channel.
- the aforementioned slot can be a Uu slot; in this case, the Uu slot corresponding to Y2 refers to the slot corresponding to (n-Y2) and the SCS is Uu SCS.
- the aforementioned slot may be an SL slot; in this case, the SL slot corresponding to Y2 refers to one or more SL slots that overlap with slot (n-Y2).
- slot (n-Y2) may correspond to multiple SL slots.
- Step 205 Determine a target PSFCH resource set based on the PSFCH resource set corresponding to the target uplink channel, where the target PSFCH resource set is a subset of the PSFCH resource set corresponding to the target uplink channel.
- the target PSFCH resource set associated with the target uplink channel can be obtained based on the PSFCH resource set corresponding to the target uplink channel.
- the target PSFCH resource set is a subset of the PSFCH resource set corresponding to the target uplink channel, that is, part or all of the resources in the PSFCH resource set corresponding to the target uplink channel can be used as resources in the target PSFCH resource set.
- the above step 205 can be executed as different solutions, including but not limited to The following specific examples show the content.
- the PSFCH resource set corresponding to the target uplink channel includes the first PSFCH resource, and the first PSFCH resource corresponds to a time domain position containing the PSFCH resource.
- step 205 may be executed as the following content:
- the first PSFCH resource in the PSFCH resource set corresponding to the target uplink channel is determined as the PSFCH resource in the target PSFCH resource set.
- the resources in the target PSFCH resource set may only include the first PSFCH resource corresponding to the time domain position that actually contains the PSFCH resource in the PSFCH resource set corresponding to the target uplink channel.
- the PSFCH resource set corresponding to the target uplink channel includes a second PSFCH resource, and the second PSFCH resource corresponds to a time domain position that does not include the PSFCH resource.
- the second PSFCH resource may be referred to as a virtual PSFCH resource (virtual PSFCH occasion).
- step 205 may be executed as the following content:
- the second PSFCH resource in the PSFCH resource set corresponding to the target uplink channel is determined as the PSFCH resource in the target PSFCH resource set.
- the resources in the target PSFCH resource set may also only include the second PSFCH resource corresponding to the time domain position where the PSFCH resource is not included in the PSFCH resource set corresponding to the target uplink channel.
- the PSFCH resource set corresponding to the target uplink channel includes the first PSFCH resource and the second PSFCH resource; wherein, the first PSFCH resource corresponds to the time domain position containing the PSFCH resource, and the second PSFCH resource corresponds to Corresponding to the time domain location that does not include the PSFCH resource.
- step 205 may be executed as the following content:
- the resources in the target PSFCH resource set may include the first PSFCH resource corresponding to the time domain location that actually contains the PSFCH resource in the PSFCH resource set corresponding to the target uplink channel, and the second PSFCH resource corresponding to the time domain location that does not contain the PSFCH resource. .
- the time domain position may belong to the target PSFCH resource set, or may not belong to the target PSFCH resource set.
- the foregoing step 101 may be performed as follows:
- the SL HARQ feedback information corresponding to the second PSFCH resource in the target PSFCH resource set is determined to be one of positive acknowledgement ACK information and negative acknowledgement NACK information.
- the corresponding SL HARQ feedback information can be determined as ACK information or all as NACK information, that is, each second PSFCH resource
- the values of the corresponding SL HARQ feedback time domain bits are all set to the value corresponding to the ACK information (such as "1") or are all set to the value corresponding to the NACK information (such as "0").
- the foregoing step 101 may be performed as the following content:
- the SL HARQ feedback information corresponding to the above-mentioned target PSFCH resource set may be constituted by the value corresponding to the first number of SL HARQ feedback time domain bits corresponding to each PSFCH resource in the target PSFCH resource set.
- the foregoing first number may be determined based on different parameters, and the parameter may include at least one of PSFCH density and target subcarrier spacing SCS; wherein, the target SCS includes at least one of SL SCS and Uu SCS.
- specific examples of the above-mentioned method for determining the first quantity include but are not limited to the following content:
- the above-mentioned first number is related to the PSFCH density.
- the PSFCH density may also be referred to as the PSFCH period.
- the PSFCH density can be interpreted according to SL SCS but is not limited to SL SCS, which means that one PSFCH resource appears every time interval of the value of the PSFCH density.
- the value of the PSFCH density can take 1, 2 or 4.
- some time domain locations include PSFCH resources and other side link channel resources, such as Pysical Sidelink Share Channel (PSSCH) resources and Pysical Sidelink Control Channel (PSCCH) resources. At least one of them; and there are only PSSCH resources and/or PSCCH resources but no PSFCH resources in some time domain locations.
- PSSCH Pysical Sidelink Share Channel
- PSCCH Pysical Sidelink Control Channel
- the value of the aforementioned first quantity is equal to the value of the PSFCH density.
- the above-mentioned first number is related to the target subcarrier spacing SCS.
- the value of the aforementioned first quantity is equal to the value of the PSFCH density.
- the value of the foregoing first quantity is determined based on one of the following methods:
- the ⁇ class corresponding to Uu SCS is the same as the ⁇ corresponding to SL SCS, which will not be repeated here.
- the operation symbol It means rounding up, or it can be expressed as ceiling.
- the operation symbol represents rounding down, and can also be expressed as floor.
- the time domain position corresponding to n- ⁇ 4,8 ⁇ is the feedback window of PUCCH (that is, the target uplink channel), or the PSFCH occasion in the time domain positions slot (n-4) and slot (n-8) belongs to
- slot n is the time domain position where PUCCH is located.
- the 4 bits SL HARQ feedback information corresponding to each of n-4 and n-8 is determined by the user according to the PSFCH reception status on n-4 and n-8.
- slot n is the time domain position where PUCCH is located.
- slot n is the time domain position where PUCCH is located.
- the 4bits SL HARQ feedback information corresponding to n-8 is determined by the user according to the PSFCH reception on n-8.
- slot n is the time domain position where PUCCH is located.
- n-2 corresponds to SL HARQ feedback information
- the user feedbacks 1 ⁇ N 4bits SL HARQ feedback information
- the 4bits SL HARQ feedback information is determined by the user according to the PSFCH reception on SL slot 4.
- slot n is the time domain position where PUCCH is located.
- the PSFCH reception status on the PC is confirmed, and the 4bits NACK information corresponding to slot 5 is confirmed.
- slot n is the time domain position where PUCCH is located.
- SL slots 8 and 10 respectively correspond to 2bits SL HARQ feedback information, which is specifically determined by the user according to the PSFCH reception status on SL slots 8 and 10.
- slot n is the time domain position where PUCCH is located.
- SL slots 8 and 10 respectively correspond to 2bits SL HARQ feedback information, which is specifically determined by the user according to the PSFCH reception status on SL slots 8, 10;
- SL slots 2, 4 respectively correspond to 2bits NACK information.
- a method of presetting a fixed value for the first quantity may also be used.
- other methods can also be used, including but not limited to the above content.
- the foregoing step 101 may be performed as the following content:
- the first side link channel resources include physical side link shared channel PSSCH resources and physical At least one of the PSCCH resources of the side link control channel.
- the SL HARQ feedback information corresponding to the foregoing target PSFCH resource set may be determined based on the second number of first sidelink channel resources corresponding to each PSFCH resource in the target PSFCH resource set.
- the first side link channel resource includes at least one of PSSCH resource and PSCCH resource.
- the SL HARQ feedback time domain corresponding to each PSFCH resource in the target PSFCH resource set can be derived.
- the number of bits can then be used to determine the SL HARQ feedback information based on the corresponding values of the SL HARQ feedback time domain bits corresponding to each PSFCH resource in the target PSFCH resource set.
- the foregoing second number may be determined based on different parameters, and the parameter may include at least one of PSFCH density and target subcarrier spacing SCS; wherein, the target SCS includes sidelink subcarrier SL SCS and air interface subcarrier At least one of Uu SCS.
- the above-mentioned second quantity determination method include but are not limited to the following content:
- the above-mentioned second quantity is related to the PSFCH density.
- the PSFCH density may also be referred to as the PSFCH period.
- the PSFCH density can be interpreted according to SL SCS, which means that one PSFCH resource appears every time interval of the value of the PSFCH density.
- the value of the PSFCH density can take 1, 2 or 4.
- the timing duration corresponding to the N sidelink slots may be greater than or equal to the duration corresponding to the N physical slots.
- some time domain locations include PSFCH resources and other side link channel resources, such as at least one of PSSCH resources and PSCCH resources; and some time domain locations only have PSSCH resources and/or PSCCH resources but no PSFCH resources.
- the value of the aforementioned second quantity is equal to the value of the PSFCH density.
- the above-mentioned second number is related to the target subcarrier spacing SCS.
- the value of the aforementioned second quantity is equal to the value of the PSFCH density.
- the value of the foregoing second quantity is determined based on one of the following methods:
- the operation symbol It means rounding up, or it can be expressed as ceiling.
- the operation symbol represents rounding down, and can also be expressed as floor.
- the time domain position corresponding to n- ⁇ 4,8 ⁇ is the feedback window of PUCCH (that is, the target uplink channel), or the PSFCH occasion in the time domain positions slot (n-4) and slot (n-8) belongs to
- slot n is the time domain position where PUCCH is located.
- the 4 bits SL HARQ feedback information corresponding to each of n-4 and n-8 is determined by the user according to the PSFCH reception status on n-4 and n-8.
- slot n is the time domain position where PUCCH is located.
- slot n is the time domain position where PUCCH is located.
- the 4bits SL HARQ feedback information corresponding to n-8 is determined by the user according to the PSFCH reception on n-8.
- slot n is the time domain position where PUCCH is located.
- n-2 corresponds to SL HARQ feedback information
- the user feedbacks 1 ⁇ N 4bits SL HARQ feedback information
- the 4bits SL HARQ feedback information is determined by the user according to the PSFCH reception on SL slot 4.
- slot n is the time domain position where PUCCH is located.
- slot n is the time domain position where PUCCH is located.
- SL slots 8 and 10 respectively correspond to 2bits SL HARQ feedback information, which is specifically determined by the user according to the PSFCH reception status on SL slots 8 and 10.
- slot n is the time domain position where PUCCH is located.
- SL slots 8 and 10 respectively correspond to 2bits SL HARQ feedback information, which is specifically determined by the user according to the PSFCH reception status on SL slots 8 and 10.
- slot n is the time domain position where PUCCH is located.
- SL slots 8 and 10 respectively correspond to 2bits SL HARQ feedback information, which is specifically determined by the user according to the PSFCH reception status on SL slots 8, 10; SL slots 2, 4 respectively correspond to 2bits NACK information.
- a method of presetting a fixed value for the second quantity may also be used.
- other methods can also be used, including but not limited to the above content.
- the step of determining SL HARQ feedback information is based on the second number of first side link channel resources corresponding to each PSFCH resource in the target PSFCH resource set. It can be implemented based on different solutions, including but not limited to the content described in the following specific embodiments.
- the step of determining the SL HARQ feedback information based on the second number of first side link channel resources corresponding to each PSFCH resource in the target PSFCH resource set can be performed as follows:
- the SL HARQ feedback time domain bit corresponding to the first side link channel resource is set to the decoding state corresponding to the first side link channel Or SL HARQ feedback status.
- the first signaling corresponding to the first sidelink channel indicates that the target uplink channel is used to transmit SL HARQ feedback information, where the first signaling may include control signaling (such as DCI or SCI) or Configure signaling.
- control signaling such as DCI or SCI
- Configure signaling such as Configure signaling
- the foregoing decoding status includes decoding success or decoding failure
- the SL HARQ feedback status includes ACK status or NACK status.
- the value of the SL HARQ feedback time domain bit corresponding to the first side link channel resource can be set to "1"; when the decoding fails or is in the NACK state, the first side link channel resource corresponds to The value of the SL HARQ feedback time domain bit can be set to "0".
- DTX Discontinuous Transmission
- the value of the SL HARQ feedback time domain bit corresponding to the first side link channel resource is set to DTX, NACK, or ACK.
- the step of determining the SL HARQ feedback information based on the second number of first side link channel resources corresponding to each PSFCH resource in the target PSFCH resource set can be performed as follows:
- the SL HARQ feedback time domain bits corresponding to the first side link channel resource are all set as ACK information.
- the first preset condition includes one of the following:
- the first side link channel resource is used to transmit broadcast messages.
- the side link control information SCI corresponding to the first side link channel indicates that SL HARQ feedback information is not fed back; wherein, the first side link channel is transmitted through the corresponding first side link channel resource, and the first side link channel
- the road channel includes at least one of PSSCH and PSCCH.
- Disable SL HARQ feedback optionally, disable SL HARQ feedback through high-layer signaling.
- HARQ feedback is performed in the manner of multicast option-1, and the NACK information corresponding to the first sidelink channel resource is not received; optionally, pre-configuration or network device configuration or instructions to use multicast option-1.
- the first side link channel resource belongs to the resource that is configured to be authorized and not used.
- the step of determining the SL HARQ feedback information based on the second number of first side link channel resources corresponding to each PSFCH resource in the target PSFCH resource set can be performed as follows:
- the SL HARQ feedback time domain bits corresponding to the first side link channel resource are all set to NACK information.
- the second preset condition includes one of the following:
- the second signaling for scheduling the first sidelink channel resource is not detected; the second signaling may include control signaling (such as DCI or SCI).
- control signaling such as DCI or SCI.
- the first side link channel resource is not used to transmit the corresponding first side link channel.
- the first side link channel resource is preempted.
- the first side link channel resource is used to transmit the corresponding first side link channel, and the third signaling corresponding to the first side link channel indicates the uplink corresponding to other time domain positions except the target time domain position.
- the channel performs SL HARQ feedback. In other words, the uplink channel corresponding to the other time domain position is different from the above-mentioned target uplink channel.
- the third signaling includes control signaling (such as DCI or SCI) or high-level signaling
- the high-level signaling includes RRC signaling, Packet Data Convergence Protocol (PDCP) signaling, and service data adaptation protocol At least one of (Service Data Adaptation Protocol, SDAP) signaling, Radio Link Control (RLC) signaling, Medium Access Control (MAC) signaling, etc.
- the third number of first side link channel resources among the second number of first side link channel resources are used to transmit the same transmission block TB or to repeatedly transmit PSSCH, which is based on the target
- the step of determining the SL HARQ feedback information for the second number of first side link channel resources corresponding to each PSFCH resource in the PSFCH resource set can be performed as one of the following:
- the SL HARQ feedback time domain bits corresponding to the fourth number of first side link channel resources It is respectively set to the decoding state or the SL HARQ feedback state corresponding to the first side link channel corresponding to each first side link channel resource.
- the other first side link channel resources are set to one of ACK information and NACK information.
- each SL HARQ feedback time domain bit corresponding to the fourth number of first side link channel resources to the decoding state corresponding to the first side link channel corresponding to each first side link channel resource, or
- the SL HARQ feedback state and the SL HARQ feedback time domain bits corresponding to the other first side link channel resources are set to one of ACK information and NACK information.
- the value of the fourth number in (2) to (4) above may be 1.
- the time domain position in the third number of first side link channel resources is arranged at a preset position (Such as the last position) one or more first side link channel resources.
- the foregoing preset location may be one or more locations that are ranked last in the time domain location in the foregoing third number of first side link channel resources.
- the SL HARQ feedback time domain bit corresponding to each first side link channel resource in the third number of first side link channel resources is set to the last one of the third number of first side link channel resources
- the decoding state or the SL HARQ feedback state corresponding to the first side link channel corresponding to the first side link channel resource is set to the last one of the third number of first side link channel resources.
- the foregoing target PSFCH resource set associated with the target uplink channel is determined based on at least one of the first feedback time and the second feedback time.
- the method for determining SL feedback information in the embodiment of the present invention in addition to the manner of determining the target PSFCH resource set corresponding to FIG. 2, it may also be based on at least one of the first feedback time and the second feedback time.
- the SL HARQ feedback information can be determined based on the target PSFCH resource set.
- the above-mentioned first feedback time and second feedback time may be determined based on at least one of the following methods: control node configuration; pre-configuration; network equipment indication; protocol definition; other terminal equipment indications.
- control node configuration pre-configuration
- network equipment indication network equipment indication
- protocol definition protocol definition
- other terminal equipment indications different parameters can be determined in the same way or in different ways.
- the process of determining the foregoing target PSFCH resource set based on at least one of the first feedback time and the second feedback time may be performed in the following different specific embodiments:
- the target PSFCH resource set associated with the target uplink channel is determined according to the resource location of the target uplink channel and the first feedback time.
- the foregoing SL HARQ feedback information that needs to be fed back may be determined based on the slot corresponding to n-T.
- the feedback time period is determined according to the resource location of the target uplink channel, the first feedback time, and the second feedback time, and the target PSFCH resource set associated with the target uplink channel is determined according to the feedback time period.
- each target time in the above feedback time period corresponds to at least one SL HARQ feedback time domain bit.
- the foregoing target time includes resources in the target PSFCH resource set.
- the time domain location corresponding to the aforementioned target time interval may be within the aforementioned feedback time period.
- the feedback time period is determined according to the resource location of the target uplink channel and the second feedback time, and the target PSFCH resource set associated with the target uplink channel is determined according to the feedback time period.
- each target time in the above feedback time period corresponds to at least one SL HARQ feedback time domain bit.
- each slot containing the PSFCH occurrence that is, a resource in the target PSFCH resource set
- the foregoing target time includes resources in the target PSFCH resource set.
- each PSFCH resource in the foregoing target PSFCH resource set corresponds to a fifth number of SL HARQ feedback frequency domain bits.
- each PSFCH resource in the target PSFCH resource set may correspond to the fifth number of SL HARQ feedback frequency domain bits.
- the foregoing fifth quantity includes at least one of the following:
- the second side link channel resource includes at least one of a PSSCH resource and a PSCCH resource.
- the number of (available) PSSCH RBs or the number of subchannels in at least one target frequency domain resource where the target frequency domain resource includes a subchannel, a resource pool, or a bandwidth part (Bandwidth Part, BWP).
- the number of (available) SCI or PSCCH resources in at least one target frequency domain resource where the target frequency domain resource includes a subchannel, a resource pool, or a bandwidth part BWP.
- the maximum number of PSFCH resources to be transmitted is optionally, it includes the maximum number of received PSFCH resources or the maximum number of transmitted PSFCH resources.
- the maximum number of PSFCH RBs to be transmitted includes the maximum number of received PSFCH RBs or the maximum number of transmitted PSFCH RBs.
- the number of (available) PSFCH RBs in a resource pool can also be referred to as the number of PSFCH RBs available in a resource pool rbSetPSFCH (Indicates the set of PRBs that are actually used for PSFCH transmission and reception, indicating the physical resource block PSFCH group actually used for transmission and reception).
- the foregoing target time interval, PSFCH density, first number, second number, third number, fourth number, and fifth number are respectively based on the following methods: At least one determination of: control node configuration; pre-configuration; network equipment indication; protocol agreement; other terminal equipment indication.
- control node configuration pre-configuration
- network equipment indication network equipment indication
- protocol agreement other terminal equipment indication.
- different parameters can be determined in the same way or in different ways.
- the order of determining the feedback information of the time domain dimension and the feedback information of the frequency domain corresponding to the above-mentioned target PSFCH resource set is not specifically limited, and can be arbitrary. combination.
- the SL corresponds to the sixth number of carriers.
- the SL in the embodiment of the present invention corresponds to a sixth number of carriers.
- each carrier of the sixth number of carriers it can be considered from the above-mentioned time-domain and frequency-domain dimensions to realize the determination of the side-link hybrid automatic reconfiguration based on the target physical side-link feedback channel PSFCH resource set associated with the target uplink channel.
- the number of PSFCH RBs associated with the terminal device is the seventh number.
- the value of the seventh number can be 1.
- the value of the seventh number mentioned above may be 2.
- the above-mentioned sixth quantity and seventh quantity may be determined based on at least one of the following ways: control node configuration; pre-configuration; network device indication; protocol Agreement; other terminal equipment instructions.
- control node configuration pre-configuration
- network device indication network device indication
- protocol Agreement other terminal equipment instructions.
- different parameters can be determined in the same way or in different ways.
- step 101 may be performed as follows:
- the SL HARQ feedback bits corresponding to the target PSFCH resource set are concatenated to determine the SL HARQ feedback information.
- the SL HARQ feedback bits corresponding to the target PSFCH resource set can be sorted and traversed (that is, concatenated) according to a certain order or rule, so that the target PSFCH resource set and the SL HARQ feedback information is mapped in an orderly and comprehensive manner.
- the SL codebook corresponds to the time domain dimension, PSFCH density N, and frequency domain parameter Z (referring to each PSFCH resource in the target PSFCH resource set If the number of (available) PSFCH RBs corresponding to the PSSCH occurrence, that is, the fifth number, is related, the corresponding SL HARQ feedback information occupies (U ⁇ N ⁇ M ⁇ Z) bits.
- the method for determining SL feedback information in the embodiment of the present invention may further include the following content:
- the 1-bit Downlink Assignment Indicator (DAI) in the DCI indicates whether the SL HARQ feedback information can be transmitted on the PUSCH.
- the above-mentioned target uplink channel is associated with at least one target resource; wherein, the target resource includes a resource pool, a subchannel, a bandwidth part BWP, or a carrier.
- the resources in the above-mentioned target PSFCH resource set associated with the target uplink channel may belong to the same target resource, may also belong to the same group of target resources, and may also be associated with any target resource. That is to say, the above-mentioned target uplink channel can only feed back the PSFCH resource or the SL HARQ feedback information corresponding to the PSSCH resource in a certain target resource; or, it can also feed back the PSFCH resource or PSSCH resource corresponding to some designated target resource.
- the SL HARQ feedback information; or, the PSFCH resource in any target resource or the SL HARQ feedback information corresponding to the PSSCH resource can also be fed back.
- the manner in which the target uplink channel is associated with at least one target resource includes at least one of the following:
- the target uplink channel is associated with one or more target resources in at least one target resource.
- the target uplink channel is associated with one or more target resource identifiers (Identifiers, IDs) in at least one target resource.
- IDs identifyrs
- the high-level signaling may include RRC signaling, Packet Data Convergence Protocol (PDCP) signaling, and Service Data Adaptation Protocol (Service Data).
- PDCP Packet Data Convergence Protocol
- Service Data Service Data
- SDAP Adaptation Protocol
- RLC Radio Link Control
- MAC Medium Access Control
- the resource set of the target uplink channel is associated with the ID of one or more target resources in the at least one target resource.
- the resource set of the target uplink channel is associated with the ID of one or more target resources in the at least one target resource.
- the format of the target uplink channel is associated with one or more target resources in the at least one target resource.
- the format of the target uplink channel is associated with the ID of one or more target resources in the at least one target resource.
- the sequence of the target uplink channel is associated with one or more target resources in at least one target resource.
- the sequence of the target uplink channel is associated with the ID of one or more target resources in the at least one target resource.
- the sequence of the target uplink channel includes at least one of base sequence, initialization, cyclic shift, and phase rotation.
- the frequency domain resource of the target uplink channel is associated with one or more target resources in the at least one target resource.
- the frequency domain resource of the target uplink channel is associated with the ID of one or more target resources in the at least one target resource.
- the time domain resource of the target uplink channel is associated with one or more target resources in the at least one target resource.
- the time domain resource of the target uplink channel is associated with the ID of one or more target resources in the at least one target resource.
- the frequency hopping pattern of the target uplink channel is associated with one or more target resources in at least one target resource.
- the frequency hopping pattern of the target uplink channel is associated with the ID of one or more target resources in the at least one target resource.
- the frequency hopping pattern is used for frequency hopping by the communication device.
- the foregoing target uplink channel is associated with a target side link channel resource
- the target side link channel resource includes at least one of a PSFCH resource, a PSSCH resource, and a PSCCH resource.
- the target side link channel resource includes at least one resource outside the range of the side link channel resource corresponding to the at least one target resource.
- all SL HARQ feedback information corresponding to at least one resource outside the range of the side link channel resource corresponding to the at least one target resource is one of positive acknowledgement ACK information and negative acknowledgement NACK information .
- one PUCCH is associated with resource pool#1, and the PUCCH is associated with 4 PSFCH occasions#1, #2, #3, and #4.
- occasion#3 belongs to resource pool#2, and the other three belong to resource pool#1.
- the HARQ-ACK bit(s) corresponding to occasion#3 ACK bit(s) are all set to ACK information.
- one PUCCH is associated with resource pool#1, and the PUCCH is associated with 4 PSFCH occasions#1, #2, #3, and #4.
- occasion#3 belongs to resource pool#2, and the other three belong to resource pool#1.
- the HARQ-ACK bit(s) corresponding to occasion#3 ACK bit(s) are all set to NACK information.
- the resources in the target PSFCH resource set associated with the target uplink channel may include at least one resource outside the range of the side link channel resource corresponding to the at least one target resource.
- resources that do not belong to the range of side link channel resources corresponding to the at least one target resource associated with the target uplink channel may belong to the foregoing
- the resource in the target PSFCH resource set associated with the target uplink channel may belong to the foregoing
- the foregoing target side link channel resource is a resource within a range of side link channel resources corresponding to at least one target resource.
- the resource in the target PSFCH resource set associated with the target uplink channel is at least one resource within the range of the side link channel resource corresponding to the at least one target resource.
- resources that do not belong to the range of the side link channel resources corresponding to the at least one target resource associated with the target uplink channel that is, at least one resource outside the range of the side link channel resources corresponding to the at least one target resource
- resources that do not belong to the range of the side link channel resources corresponding to the at least one target resource associated with the target uplink channel also do not belong to The resources in the target PSFCH resource set associated with the target uplink channel.
- the target side link channel resources associated with the target uplink channel are grouped according to the target resources.
- the resources associated with each target resource or the corresponding SL HARQ-ACK bit(s) are cascaded in sequence according to the ID of the target resource.
- the communication device 300 may be a network device or a terminal device, and may include:
- the determining module 301 is configured to determine the side link hybrid automatic repeat request SL HARQ feedback information based on the target physical side link feedback channel PSFCH resource set associated with the target uplink channel, where the target PSFCH resource set is determined based on the target time interval, and the target The time interval is the interval between the target uplink channel and the PSFCH.
- the above-mentioned determining module 301 may be used for:
- the above-mentioned first number is related to the PSFCH density.
- the value of the aforementioned first quantity is equal to the value of the PSFCH density.
- the foregoing first number is related to the target subcarrier spacing SCS, where the target SCS includes at least one of the sidelink subcarrier SL SCS and the air interface subcarrier Uu SCS .
- the value of the first number is determined based on one of the following methods:
- the value of the first quantity SL SCS/Uu SCS;
- the value of the first number the value of the PSFCH density ⁇ SL SCS/Uu SCS.
- the above-mentioned determining module 301 may also be used for:
- the above-mentioned determining module 301 may also be used for:
- the target PSFCH resource set is determined based on the PSFCH resource set corresponding to the target uplink channel, and the target PSFCH resource set is a subset of the PSFCH resource set corresponding to the target uplink channel.
- the PSFCH resource set corresponding to the target uplink channel includes a first PSFCH resource, and the first PSFCH resource corresponds to a time domain position containing the PSFCH resource.
- the above-mentioned determining module 301 may also be used for:
- the first PSFCH resource in the PSFCH resource set corresponding to the target uplink channel is determined as the PSFCH resource in the target PSFCH resource set.
- the PSFCH resource set corresponding to the target uplink channel includes a second PSFCH resource, and the second PSFCH resource corresponds to a time domain location that does not include the PSFCH resource.
- the above-mentioned determining module 301 may also be used for:
- the second PSFCH resource in the PSFCH resource set corresponding to the target uplink channel is determined as the PSFCH resource in the target PSFCH resource set.
- the above-mentioned determining module 301 may be used for:
- the SL HARQ feedback information corresponding to the second PSFCH resource in the target PSFCH resource set is determined to be one of positive acknowledgement ACK information and negative acknowledgement NACK information.
- the above-mentioned determining module 301 may be used for:
- the first side link channel resources include physical side link shared channel PSSCH resources and physical At least one of the PSCCH resources of the side link control channel.
- the above-mentioned second number is related to the PSFCH density.
- the value of the foregoing second quantity is equal to the value of the PSFCH density.
- the foregoing second number is related to the target subcarrier interval SCS, where the target SCS includes at least one of SL SCS and Uu SCS.
- the value of the second number is determined based on one of the following methods:
- the value of the second quantity SL SCS/Uu SCS;
- the value of the second number the value of the PSFCH density ⁇ SL SCS/Uu SCS.
- the above-mentioned determining module 301 may be used for:
- the SL HARQ feedback time domain bit corresponding to the first side link channel resource is set to the decoding state corresponding to the first side link channel Or SL HARQ feedback status.
- the above-mentioned determining module 301 may be used for:
- the SL HARQ feedback time-domain bits corresponding to the first sidelink channel resource are all set to ACK information; wherein, the first preset condition includes one of the following: first sidechain Channel channel resources are used to transmit broadcast messages; the side link control information corresponding to the first side link channel indicates that SL HARQ feedback information is not fed back; pre-configuration or network device configuration does not feed back SL HARQ feedback information; SL HARQ feedback is disabled; The HARQ feedback is performed in the manner of multicast option-1, and the NACK information corresponding to the first side link channel resource is not received; the first side link channel resource is a resource that is configured to be authorized and not used.
- the above-mentioned determining module 301 may be used for:
- the SL HARQ feedback time domain bits corresponding to the first side link channel resource are all set to NACK information; wherein, the second preset condition includes one of the following: The SL HARQ feedback information corresponding to the side link channel resource; the PSFCH corresponding to the first side link channel resource is not received; the second signaling used to schedule the first side link channel resource is not detected; the first side chain Channel channel resources are not used to transmit the corresponding first side link channel; the first side link channel resource is preempted; the transmission corresponding to the first side link channel resource is discarded or abandoned or cancelled; the first side link channel The resource is used to transmit the corresponding first side link channel, and the third signaling corresponding to the first side link channel instructs uplink channels corresponding to other time domain positions except the target time domain position to perform SL HARQ feedback.
- the above determining module 301 may be used to perform one of the following:
- each SL HARQ feedback time domain bit corresponding to the third number of first side link channel resources to the decoding state or SL HARQ feedback state corresponding to the first side link channel corresponding to each first side link channel resource, respectively ;
- the SL HARQ feedback time domain bits corresponding to the fourth number of first side link channel resources are respectively set to The decoding state or SL HARQ feedback state corresponding to the first side link channel corresponding to each first side link channel resource; for the first side link channel of the third number except for the fourth number of first side link channel resources
- the SL HARQ feedback time domain bits corresponding to the other first side link channel resources are set to one of ACK information and NACK information;
- Each SL HARQ feedback time domain bit corresponding to a side link channel resource is set to the decoding state or SL HARQ feedback state corresponding to the first side link channel corresponding to each first side link channel resource, and the other first
- the foregoing target PSFCH resource set is determined based on at least one of the first feedback time and the second feedback time.
- the above-mentioned determining module 301 may also be used to determine the above-mentioned target PSFCH resource set based on one of the following:
- each target time in the foregoing feedback period corresponds to at least one SL HARQ Feedback time domain bits.
- the foregoing target time includes resources in the foregoing target PSFCH resource set.
- each PSFCH resource in the foregoing target PSFCH resource set corresponds to a fifth number of SL HARQ feedback frequency domain bits.
- the above-mentioned fifth number includes at least one of the following: the number of PSSCH resource blocks RB corresponding to each second side link channel resource, and the second side link channel
- the resources include at least one of PSSCH resources and PSCCH resources; the number of sub-channels on each second side link channel resource; the corresponding maximum number of PSSCHs used for transmission or demodulation on each second side link channel resource Number; the number of PSSCH RBs or the number of subchannels in at least one target frequency domain resource, where the target frequency domain resource includes a subchannel, a resource pool, or a bandwidth part BWP.
- the above-mentioned fifth quantity includes at least one of the following: each second side link channel resource or time slot slot or span is used for transmission, blind detection, and detection. Or the maximum number of SCIs or the maximum number of PSCCH resources for demodulation of side link control information; the number of SCIs or the number of PSCCH resources in at least one target frequency domain resource, where the target frequency domain resources include subchannels, resource pools, or Bandwidth part BWP; maximum number of SCI or maximum number of PSCCH resources in at least one target frequency domain resource; number of SCI or number of PSCCH resources on each second side link channel resource or slot or span.
- the above-mentioned fifth number includes one of the following: the maximum number of PSFCH resources to be transmitted; the maximum number of PSFCH RBs to be transmitted.
- the fifth number includes one of the following: the number of PSFCH RBs in one resource pool; the maximum value of the number of PSFCH RBs corresponding to at least two resource pools; The number of RBs in a sub-channel in a resource pool; the maximum of the number of RBs corresponding to a sub-channel in at least two resource pools; the number of PSFCH RBs in a sub-channel in a resource pool; in at least two resource pools The maximum value of the number of RBs in each PSFCH corresponding to the subchannel; the number of RBs included in the BWP; the number of PSFCH RBs included in the BWP.
- the above-mentioned fifth number includes: the number of PSFCH RBs corresponding to each second sidelink channel resource.
- SL corresponds to the sixth number of carriers.
- the number of PSFCH RBs associated with the terminal device is the seventh number.
- the above-mentioned determining module 301 may be used for:
- the SL HARQ feedback bits corresponding to the target PSFCH resource set are concatenated to determine the SL HARQ feedback information.
- the above-mentioned target uplink channel is associated with at least one target resource; where the target resource includes a resource pool, a subchannel, a bandwidth part BWP, or a carrier.
- the manner in which the target uplink channel is associated with at least one target resource includes at least one of the following: the target uplink channel is associated with one or more target resources in the at least one target resource ;
- the resource set of the target uplink channel is associated with one or more target resources in at least one target resource;
- the format of the target uplink channel is associated with one or more target resources in the at least one target resource;
- the sequence of the target uplink channel is associated with at least one target One or more target resources in the resource are associated;
- the frequency domain resource of the target uplink channel is associated with one or more target resources in at least one target resource;
- the time domain resource of the target uplink channel is associated with one or more target resources in the at least one target resource Association;
- the frequency hopping pattern of the target uplink channel is associated with one or more target resources in at least one target resource.
- the above-mentioned target uplink channel is associated with a target side link channel resource
- the target side link channel resource includes PSFCH resource, physical side link shared channel PSSCH resource, and physical side link. At least one of the control channel PSCCH resources.
- the above-mentioned target side link channel resource includes at least one resource outside the range of the side link channel resource corresponding to the at least one target resource.
- all SL HARQ feedback information corresponding to at least one resource outside the range of the side link channel resource corresponding to the at least one target resource is positive acknowledgement ACK information and negative acknowledgement NACK information.
- the aforementioned target sidelink channel resource is a resource within the range of the sidelink channel resource corresponding to at least one target resource.
- the communication device 300 provided in the embodiment of the present invention can implement the aforementioned method for determining sidelink feedback information performed by the communication device 300, and the relevant explanations about the method for determining sidelink feedback information are all applicable to the communication device 300. I won't repeat them here.
- the target time interval between the target uplink channel and the physical sidelink feedback channel PSFCH can be used to accurately derive the target PSFCH resource set associated with the target uplink channel to establish the target uplink channel and Based on the mapping relationship between the target PSFCH resource set, the SL HARQ feedback information corresponding to the target PSFCH resource set can be mapped to the target uplink channel for reporting. In this way, efficient and reliable HARQ feedback on the side link is realized, so that the receiver of the SL HARQ feedback information can accurately know whether the data transmission on the side link is successful, thereby improving the reliability and resource utilization of data transmission on the SL Rate.
- Fig. 8 is a block diagram of a terminal device applied in an embodiment of the present invention.
- the terminal device 400 shown in FIG. 8 includes: at least one processor 401, a memory 402, at least one network interface 404, and a user interface 403.
- the various components in the terminal device 400 are coupled together through the bus system 405.
- the bus system 405 is used to implement connection and communication between these components.
- the bus system 405 also includes a power bus, a control bus, and a status signal bus.
- various buses are marked as the bus system 405 in FIG. 8.
- the user interface 403 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball (trackball), a touch panel, or a touch screen).
- a pointing device for example, a mouse, a trackball (trackball), a touch panel, or a touch screen.
- the memory 402 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
- RAM static random access memory
- DRAM dynamic random access memory
- DRAM synchronous dynamic random access memory
- Synchronous DRAM Double Data Rate Synchronous Dynamic Random Access Memory
- Double Data Rate SDRAM Double Data Rate SDRAM
- DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
- Enhanced SDRAM Enhanced SDRAM, ESDRAM
- Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
- Synchlink DRAM Synchronous Link Dynamic Random Access Memory
- SLDRAM Direct Rambus RAM
- the memory 402 of the system and method described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
- the memory 402 stores the following elements, executable modules or data structures, or a subset of them, or an extended set of them: the operating system 4021 and the application 4022.
- the operating system 4021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
- the application program 4022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services.
- the program for implementing the method of the embodiment of the present invention may be included in the application program 4022.
- the terminal device 400 further includes: a computer program that is stored in the memory 402 and can run on the processor 401, and the computer program is executed by the processor 401 to implement the following steps:
- the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 401 or implemented by the processor 401.
- the processor 401 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 401 or instructions in the form of software.
- the aforementioned processor 401 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
- DSP digital signal processor
- ASIC application specific integrated circuit
- FPGA ready-made programmable gate array
- Programmable logic devices discrete gates or transistor logic devices, discrete hardware components.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the steps of the method disclosed in combination with the embodiments of the present invention may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
- the software module may be located in a computer-readable storage medium that is mature in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the computer-readable storage medium is located in the memory 402, and the processor 401 reads the information in the memory 402, and completes the steps of the foregoing method in combination with its hardware.
- a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 401, each step of the above-mentioned method for determining sidelink feedback information is implemented.
- the embodiments described in the embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
- the processing unit can be implemented in one or more application specific integrated circuits (ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing equipment (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in the present invention Electronic unit or its combination.
- ASIC application specific integrated circuits
- DSP Digital Signal Processing
- DSP Device digital signal processing equipment
- PLD programmable Logic Device
- PLD Field-Programmable Gate Array
- FPGA Field-Programmable Gate Array
- the technology described in the embodiments of the present invention can be implemented by modules (for example, procedures, functions, etc.) that execute the functions described in the embodiments of the present invention.
- the software codes can be stored in the memory and executed by the processor.
- the memory can be implemented in the processor or external to the processor.
- the target time interval between the target uplink channel and the physical sidelink feedback channel PSFCH can be used to accurately derive the target PSFCH resource set associated with the target uplink channel to establish the target uplink channel and Based on the mapping relationship between the target PSFCH resource set, the SL HARQ feedback information corresponding to the target PSFCH resource set can be mapped to the target uplink channel for reporting. In this way, efficient and reliable HARQ feedback on the side link is realized, so that the receiver of the SL HARQ feedback information can accurately know whether the data transmission on the side link is successful, thereby improving the reliability and resource utilization of data transmission on the SL Rate.
- the terminal device 400 can implement each process implemented by the communication device in the foregoing embodiment, and in order to avoid repetition, details are not described herein again.
- FIG. 9 is a structural diagram of a network device applied in an embodiment of the present invention, which can implement the details of the aforementioned beam information update method and achieve the same effect.
- the network device 500 includes: a processor 501, a transceiver 502, a memory 503, a user interface 504, and a bus interface 505, where:
- the network device 500 further includes: a computer program that is stored in the memory 503 and can run on the processor 501, and the computer program is executed by the processor 501 to implement the following steps:
- the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 501 and various circuits of the memory represented by the memory 503 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits. These are all well-known in the art, and therefore, this article will not further describe them.
- the bus interface 505 provides an interface.
- the transceiver 502 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
- the user interface 504 may also be an interface capable of connecting externally and internally with the required equipment.
- the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
- the processor 501 is responsible for managing the bus architecture and general processing, and the memory 503 can store data used by the processor 501 when performing operations.
- the target time interval between the target uplink channel and the physical sidelink feedback channel PSFCH can be used to accurately derive the target PSFCH resource set associated with the target uplink channel to establish the target uplink channel and Based on the mapping relationship between the target PSFCH resource set, the SL HARQ feedback information corresponding to the target PSFCH resource set can be mapped to the target uplink channel for reporting. In this way, efficient and reliable HARQ feedback on the side link is realized, so that the receiver of the SL HARQ feedback information can accurately know whether the data transmission on the side link is successful, thereby improving the reliability and resource utilization of data transmission on the SL Rate.
- the embodiment of the present invention also provides a communication device (which may be a network device or a terminal device), including a processor, a memory, a computer program stored in the memory and running on the processor, and the computer program is
- a communication device which may be a network device or a terminal device
- a processor a memory
- a computer program stored in the memory and running on the processor
- the computer program is
- the processor executes, each process of the method for determining side link feedback information in the foregoing embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details are not described here.
- the embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
- a computer program is stored on the computer-readable storage medium.
- the computer program is executed by a processor, it is applied to the communication device (which may be a network device or a terminal
- the communication device which may be a network device or a terminal
- the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
- the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present invention.
- a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.
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Abstract
Description
Claims (78)
- 一种确定旁链路反馈信息的方法,应用于通信设备,所述方法包括:基于与目标上行信道关联的目标物理旁链路反馈信道PSFCH资源集合确定旁链路混合自动重传请求SL HARQ反馈信息,其中,所述目标PSFCH资源集合基于目标时间间隔确定,所述目标时间间隔为所述目标上行信道和PSFCH之间的间隔。
- 根据权利要求1所述的方法,其中,所述基于与目标上行信道关联的目标物理旁链路反馈信道PSFCH资源集合确定旁链路混合自动重传请求SL HARQ反馈信息,包括:基于所述目标PSFCH资源集合中各PSFCH资源分别对应的第一数量的SL HARQ反馈时域比特位,确定SL HARQ反馈信息。
- 根据权利要求2所述的方法,其中,所述第一数量与PSFCH密度有关。
- 根据权利要求3所述的方法,其中,所述第一数量的值等于所述PSFCH密度的值。
- 根据权利要求2所述的方法,其中,所述第一数量与目标子载波间隔SCS有关,其中,所述目标SCS包括旁链路子载波SL SCS和空中接口子载波Uu SCS中的至少一个。
- 根据权利要求1所述的方法,其中,所述方法还包括:确定所述目标时间间隔对应的时域位置;根据各时域位置确定所述目标上行信道对应的PSFCH资源集合。
- 根据权利要求7所述的方法,其中,所述方法还包括:基于所述目标上行信道对应的PSFCH资源集合确定所述目标PSFCH资源集合,所述目标PSFCH资源集合为所述目标上行信道对应的PSFCH资源集合的子集。
- 根据权利要求8所述的方法,其中,所述目标上行信道对应的PSFCH资源集合中包括第一PSFCH资源,所述第一PSFCH资源与包含PSFCH资源的时域位置对应。
- 根据权利要求9所述的方法,其中,所述基于所述目标上行信道对应的PSFCH资源集合确定所述目标PSFCH资源集合,包括:将所述目标上行信道对应的PSFCH资源集合中的所述第一PSFCH资源确定为所述目标PSFCH资源集合中的PSFCH资源。
- 根据权利要求8所述的方法,其中,所述目标上行信道对应的PSFCH资源集合中包括第二PSFCH资源,所述第二PSFCH资源与未包含PSFCH资源的时域位置对应。
- 根据权利要求11所述的方法,其中,所述基于所述目标上行信道对应的PSFCH资源集合确定所述目标PSFCH资源集合,包括:将所述目标上行信道对应的PSFCH资源集合中的所述第二PSFCH资源确定为所述目标PSFCH资源集合中的PSFCH资源。
- 根据权利要求12所述的方法,其中,所述基于与目标上行信道关联的目标物理旁链路反馈信道PSFCH资源集合确定旁链路混合自动重传请求SL HARQ反馈信息,包括:将所述目标PSFCH资源集合中的所述第二PSFCH资源对应的SL HARQ反馈信息均确定为肯定确认ACK信息和否定确认NACK信息中的一种。
- 根据权利要求1所述的方法,其中,所述基于与目标上行信道关联的目标物理旁链路反馈信道PSFCH资源集合确定旁链路混合自动重传请求SL HARQ反馈信息,包括:基于所述目标PSFCH资源集合中各PSFCH资源分别对应的第二数量的第一旁链路信道资源,确定SL HARQ反馈信息;其中,所述第一旁链路信道资源包括物理旁链路共享信道PSSCH资源和物理旁链路控制信道PSCCH资源中的至少一个。
- 根据权利要求14所述的方法,其中,所述第二数量与PSFCH密度有关。
- 根据权利要求15所述的方法,其中,所述第二数量的值等于所述PSFCH密度的值。
- 根据权利要求14所述的方法,其中,所述第二数量与目标子载波间隔SCS有关,其中,所述目标SCS包括SL SCS和Uu SCS中的至少一个。
- 根据权利要求14所述的方法,其中,所述基于所述目标PSFCH资源集合中各PSFCH资源分别对应的第二数量的第一旁链路信道资源,确定SL HARQ反馈信息,包括:若所述第一旁链路信道资源用于传输对应的第一旁链路信道,则将所述第一旁链路信道资源对应的SL HARQ反馈时域比特位设置为所述第一旁链路信道对应的解码状态或者SL HARQ反馈状态。
- 根据权利要求14所述的方法,其中,所述基于所述目标PSFCH资源集合中各PSFCH资源分别对应的第二数量的第一旁链路信道资源,确定SL HARQ反馈信息,包括:在满足第一预设条件的情况下,将所述第一旁链路信道资源对应的SL HARQ反馈时域比特位均设置为ACK信息;其中,所述第一预设条件包括以下之一:所述第一旁链路信道资源用于传输广播消息;所述第一旁链路信道对应的旁链路控制信息指示不反馈SL HARQ反馈信息;预配置或网络设备配置不反馈SL HARQ反馈信息;不使能SL HARQ反馈;采用组播option-1的方式进行HARQ反馈,且未收到所述第一旁链路信道资源对应的NACK信息;所述第一旁链路信道资源属于配置授权且未被使用的资源。
- 根据权利要求14所述的方法,其中,所述基于所述目标PSFCH资源集合中各PSFCH资源分别对应的第二数量的第一旁链路信道资源,确定SL HARQ反馈信息,包括:在满足第二预设条件的情况下,将所述第一旁链路信道资源对应的SL HARQ反馈时域比特位均设置为NACK信息;其中,所述第二预设条件包括以下之一:未收到所述第一旁链路信道资源对应的SL HARQ反馈信息;未收到所述第一旁链路信道资源对应的PSFCH;未检测到用于调度所述第一旁链路信道资源的第二信令;所述第一旁链路信道资源未用于传输对应的第一旁链路信道;所述第一旁链路信道资源被抢占;所述第一旁链路信道资源对应的传输丢弃或被放弃或被取消;所述第一旁链路信道资源用于传输对应的第一旁链路信道,且所述第一旁链路信道对应的第三信令指示除目标时域位置外的其他时域位置对应的上行信道进行SL HARQ反馈。
- 根据权利要求14所述的方法,其中,在所述第二数量的第一旁链路信道资源中有第三数量的第一旁链路信道资源用于传输同一传输块TB或用于重复传输PSSCH的情况下,所述基于所述目标PSFCH资源集合中各PSFCH资源分别对应的第二数量的第一旁链路信道资源,确定SL HARQ反馈信息,包括以下之一:将所述第三数量的第一旁链路信道资源对应的各SL HARQ反馈时域比特位分别设置为各第一旁链路信道资源对应的第一旁链路信道对应的解码状态或者SL HARQ反馈状态;对于所述第三数量的第一旁链路资源中第四数量的第一旁链路信道资源,将所述第四数量的第一旁链路信道资源对应的各SL HARQ反馈时域比特位分别设置为各第一旁链路信道资源对应的第一旁链路信道对应的解码状态或者SL HARQ反馈状态;对于所述第三数量的第一旁链路信道资源中除所述第四数量的第一旁链路信道资源外的其他第一旁链路信道资源,将所述其他第一旁链路信道资源对应的各SL HARQ反馈时域比特位均设置为ACK信息和NACK信息中的一种;将所述第四数量的第一旁链路信道资源对应的各SL HARQ反馈时域比特位分别设置为各第一旁链路信道资源对应的第一旁链路信道对应的解码状态或者SL HARQ反馈状态,以及将所述其他第一旁链路信道资源对应的各SL HARQ反馈时域比特位均设置为ACK信息和NACK信息中的一种;将所述第三数量的第一旁链路信道资源中对应的各SL HARQ反馈时域比特位设置为所述第三数量的第一旁链路信道资源中位于预设位置的资源对应的第一旁链路信道对应的解码状态或者SL HARQ反馈状态。
- 根据权利要求1所述的方法,其中,所述目标PSFCH资源集合中每个PSFCH资源对应第五数量的SL HARQ反馈频域比特位。
- 根据权利要求23所述的方法,其中,所述第五数量包括以下至少之一:每个第二旁链路信道资源上对应的PSSCH资源块RB个数,所述第二旁链路信道资源包括PSSCH资源和PSCCH资源中的至少一个;每个第二旁链路信道资源上的子信道个数;每个第二旁链路信道资源上用于传输或解调的对应的最大PSSCH个数;至少一个目标频域资源内的PSSCH RB个数或子信道个数,其中,所述目标频域资源包括子信道、资源池或带宽部分BWP。
- 根据权利要求23所述的方法,其中,所述第五数量包括以下至少之一:每个第二旁链路信道资源或时隙slot或跨度span上用于传输、盲检、检测或解调的最大旁链路控制信息SCI个数或最大PSCCH资源个数;至少一个目标频域资源内的SCI个数或PSCCH资源个数,其中,所述目标频域资源包括子信道、资源池或带宽部分BWP;至少一个所述目标频域资源内的最大SCI个数或最大PSCCH资源个数;每个第二旁链路信道资源或slot或span上的SCI个数或PSCCH资源个数。
- 根据权利要求23所述的方法,其中,所述第五数量包括以下之一:最大传输PSFCH资源个数;最大传输PSFCH RB个数。
- 根据权利要求23所述的方法,其中,所述第五数量包括以下之一:一个资源池内的PSFCH RB个数;至少两个资源池对应的各PSFCH RB个数中的最大值;一个资源池中子信道内的RB个数;至少两个资源池中子信道对应的各RB个数中的最大值;一个资源池中子信道内的PSFCH RB个数;至少两个资源池中子信道对应的各PSFCH RB个数中的最大值;BWP包含的RB个数;BWP包含的PSFCH RB个数。
- 根据权利要求23所述的方法,其中,所述第五数量包括:每个第二旁链路信道资源对应的PSFCHRB个数。
- 根据权利要求1所述的方法,其中,SL对应第六数量的载波。
- 根据权利要求1所述的方法,其中,与终端设备关联的PSFCH RB个数为第七数量。
- 根据权利要求1~30中任一项所述的方法,其中,所述基于与目标上行信道关联的目标物理旁链路反馈信道PSFCH资源集合确定旁链路混合自动重传请求SL HARQ反馈信息,包括:按照终端设备维度、载波维度、时域维度和频域维度中的至少一个,对所述目标PSFCH资源集合对应的SL HARQ反馈比特位进行级联,确定SL HARQ反馈信息。
- 根据权利要求1所述的方法,其中,所述目标上行信道与至少一个目标资源关联;其中,所述目标资源包括资源池、子信道、带宽部分BWP或载波。
- 根据权利要求32所述的方法,其中,所述目标上行信道与所述至少一个目标 资源关联的方式包括以下至少一项:所述目标上行信道与所述至少一个目标资源中的一个或多个目标资源关联;所述目标上行信道的资源集与所述至少一个目标资源中的一个或多个目标资源关联;所述目标上行信道的格式与所述至少一个目标资源中一个或多个目标资源关联;所述目标上行信道的序列与所述至少一个目标资源中一个或多个目标资源关联;所述目标上行信道的频域资源与所述至少一个目标资源中一个或多个目标资源关联;所述目标上行信道的时域资源与所述至少一个目标资源中一个或多个目标资源关联;所述目标上行信道的跳频图样与所述至少一个目标资源中一个或多个目标资源关联。
- 根据权利要求32或33所述的方法,其中,所述目标上行信道与目标旁链路信道资源关联,所述目标旁链路信道资源包括PSFCH资源、物理旁链路共享信道PSSCH资源和物理旁链路控制信道PSCCH资源中的至少一个。
- 根据权利要求34所述的方法,其中,所述目标旁链路信道资源包括所述至少一个目标资源对应的旁链路信道资源范围外的至少一个资源。
- 根据权利要求35所述的方法,其中,所述至少一个目标资源对应的旁链路信道资源范围外的至少一个资源对应的所有SL HARQ反馈信息均为肯定确认ACK信息和否定确认NACK信息中的一种。
- 根据权利要求34所述的方法,其中,所述目标旁链路信道资源为所述至少一个目标资源对应的旁链路信道资源范围内的资源。
- 一种通信设备,所述通信设备包括:确定模块,用于基于与目标上行信道关联的目标物理旁链路反馈信道PSFCH资源集合确定旁链路混合自动重传请求SL HARQ反馈信息,其中,所述目标PSFCH资源集合基于目标时间间隔确定,所述目标时间间隔为所述目标上行信道和PSFCH之间的间隔。
- 根据权利要求38所述的通信设备,其中,所述确定模块,用于基于所述目标PSFCH资源集合中各PSFCH资源分别对应的第一数量的SL HARQ反馈时域比特位,确定SL HARQ反馈信息。
- 根据权利要求39所述的通信设备,其中,所述第一数量与PSFCH密度有关。
- 根据权利要求40所述的通信设备,其中,所述第一数量的值等于所述PSFCH密度的值。
- 根据权利要求39所述的通信设备,其中,所述第一数量与目标子载波间隔SCS有关,其中,所述目标SCS包括旁链路子载波SL SCS和空中接口子载波Uu SCS中的至少一个。
- 根据权利要求38所述的通信设备,其中,所述确定模块,还用于确定所述目标时间间隔对应的时域位置;根据各时域位置确定所述目标上行信道对应的PSFCH资源集合。
- 根据权利要求44所述的通信设备,其中,所述确定模块,还用于基于所述目标上行信道对应的PSFCH资源集合确定所述目标PSFCH资源集合,所述目标PSFCH资源集合为所述目标上行信道对应的PSFCH资源集合的子集。
- 根据权利要求45所述的通信设备,其中,所述目标上行信道对应的PSFCH资源集合中包括第一PSFCH资源,所述第一PSFCH资源与包含PSFCH资源的时域位置对应。
- 根据权利要求46所述的通信设备,其中,所述确定模块,还用于将所述目标 上行信道对应的PSFCH资源集合中的所述第一PSFCH资源确定为所述目标PSFCH资源集合中的PSFCH资源。
- 根据权利要求45所述的通信设备,其中,所述目标上行信道对应的PSFCH资源集合中包括第二PSFCH资源,所述第二PSFCH资源与未包含PSFCH资源的时域位置对应。
- 根据权利要求48所述的通信设备,其中,所述确定模块,还用于将所述目标上行信道对应的PSFCH资源集合中的所述第二PSFCH资源确定为所述目标PSFCH资源集合中的PSFCH资源。
- 根据权利要求49所述的通信设备,其中,所述确定模块,用于将所述目标PSFCH资源集合中的所述第二PSFCH资源对应的SL HARQ反馈信息均确定为肯定确认ACK信息和否定确认NACK信息中的一种。
- 根据权利要求38所述的通信设备,其中,所述确定模块,用于基于所述目标PSFCH资源集合中各PSFCH资源分别对应的第二数量的第一旁链路信道资源,确定SL HARQ反馈信息;其中,所述第一旁链路信道资源包括物理旁链路共享信道PSSCH资源和物理旁链路控制信道PSCCH资源中的至少一个。
- 根据权利要求51所述的通信设备,其中,所述第二数量与PSFCH密度有关。
- 根据权利要求52所述的通信设备,其中,所述第二数量的值等于所述PSFCH密度的值。
- 根据权利要求51所述的通信设备,其中,所述第二数量与目标子载波间隔SCS有关,其中,所述目标SCS包括SL SCS和Uu SCS中的至少一个。
- 根据权利要求51所述的通信设备,其中,所述确定模块,用于若所述第一旁链路信道资源用于传输对应的第一旁链路信道,则将所述第一旁链路信道资源对应的SL HARQ反馈时域比特位设置为所述第一旁链路信道对应的解码状态或者SL HARQ反馈状态。
- 根据权利要求51所述的通信设备,其中,所述确定模块,用于在满足第一预设条件的情况下,将所述第一旁链路信道资源对应的SL HARQ反馈时域比特位均设置为ACK信息;其中,所述第一预设条件包括以下之一:所述第一旁链路信道资源用于传输广播消息;所述第一旁链路信道对应的旁链路控制信息指示不反馈SL HARQ反馈信息;预配置或网络设备配置不反馈SL HARQ反馈信息;不使能SL HARQ反馈;采用组播option-1的方式进行HARQ反馈,且未收到所述第一旁链路信道资源对应的NACK信息;所述第一旁链路信道资源属于配置授权且未被使用的资源。
- 根据权利要求51所述的通信设备,其中,所述确定模块,用于在满足第二预设条件的情况下,将所述第一旁链路信道资源对应的SL HARQ反馈时域比特位均设置为NACK信息;其中,所述第二预设条件包括以下之一:未收到所述第一旁链路信道资源对应的SL HARQ反馈信息;未收到所述第一旁链路信道资源对应的PSFCH;未检测到用于调度所述第一旁链路信道资源的第二信令;所述第一旁链路信道资源未用于传输对应的第一旁链路信道;所述第一旁链路信道资源被抢占;所述第一旁链路信道资源对应的传输丢弃或被放弃或被取消;所述第一旁链路信道资源用于传输对应的第一旁链路信道,且所述第一旁链路信 道对应的第三信令指示除目标时域位置外的其他时域位置对应的上行信道进行SL HARQ反馈。
- 根据权利要求51所述的通信设备,其中,在所述第二数量的第一旁链路信道资源中有第三数量的第一旁链路信道资源用于传输同一传输块TB或用于重复传输PSSCH的情况下,所述基于所述目标PSFCH资源集合中各PSFCH资源分别对应的第二数量的第一旁链路信道资源,确定SL HARQ反馈信息,包括以下之一:将所述第三数量的第一旁链路信道资源对应的各SL HARQ反馈时域比特位分别设置为各第一旁链路信道资源对应的第一旁链路信道对应的解码状态或者SL HARQ反馈状态;对于所述第三数量的第一旁链路资源中第四数量的第一旁链路信道资源,将所述第四数量的第一旁链路信道资源对应的各SL HARQ反馈时域比特位分别设置为各第一旁链路信道资源对应的第一旁链路信道对应的解码状态或者SL HARQ反馈状态;对于所述第三数量的第一旁链路信道资源中除所述第四数量的第一旁链路信道资源外的其他第一旁链路信道资源,将所述其他第一旁链路信道资源对应的各SL HARQ反馈时域比特位均设置为ACK信息和NACK信息中的一种;将所述第四数量的第一旁链路信道资源对应的各SL HARQ反馈时域比特位分别设置为各第一旁链路信道资源对应的第一旁链路信道对应的解码状态或者SL HARQ反馈状态,以及将所述其他第一旁链路信道资源对应的各SL HARQ反馈时域比特位均设置为ACK信息和NACK信息中的一种;将所述第三数量的第一旁链路信道资源中对应的各SL HARQ反馈时域比特位设置为所述第三数量的第一旁链路信道资源中位于预设位置的资源对应的第一旁链路信道对应的解码状态或者SL HARQ反馈状态。
- 根据权利要求38所述的通信设备,其中,所述目标PSFCH资源集合中每个PSFCH资源对应第五数量的SL HARQ反馈频域比特位。
- 根据权利要求60所述的通信设备,其中,所述第五数量包括以下至少之一:每个第二旁链路信道资源上对应的PSSCH资源块RB个数,所述第二旁链路信道资源包括PSSCH资源和PSCCH资源中的至少一个;每个第二旁链路信道资源上的子信道个数;每个第二旁链路信道资源上用于传输或解调的对应的最大PSSCH个数;至少一个目标频域资源内的PSSCH RB个数或子信道个数,其中,所述目标频域资源包括子信道、资源池或带宽部分BWP。
- 根据权利要求60所述的通信设备,其中,所述第五数量包括以下至少之一:每个第二旁链路信道资源或时隙slot或跨度span上用于传输、盲检、检测或解调的最大旁链路控制信息SCI个数或最大PSCCH资源个数;至少一个目标频域资源内的SCI个数或PSCCH资源个数,其中,所述目标频域资源包括子信道、资源池或带宽部分BWP;至少一个所述目标频域资源内的最大SCI个数或最大PSCCH资源个数;每个第二旁链路信道资源或slot或span上的SCI个数或PSCCH资源个数。
- 根据权利要求60所述的通信设备,其中,所述第五数量包括以下之一:最大传输PSFCH资源个数;最大传输PSFCH RB个数。
- 根据权利要求60所述的通信设备,其中,所述第五数量包括以下之一:一个资源池内的PSFCH RB个数;至少两个资源池对应的各PSFCH RB个数中的最大值;一个资源池中子信道内的RB个数;至少两个资源池中子信道对应的各RB个数中的最大值;一个资源池中子信道内的PSFCH RB个数;至少两个资源池中子信道对应的各PSFCH RB个数中的最大值;BWP包含的RB个数;BWP包含的PSFCH RB个数。
- 根据权利要求60所述的通信设备,其中,所述第五数量包括:每个第二旁链路信道资源对应的PSFCHRB个数。
- 根据权利要求38所述的通信设备,其中,SL对应第六数量的载波。
- 根据权利要求38所述的通信设备,其中,与终端设备关联的PSFCH RB个数 为第七数量。
- 根据权利要求38~67中任一项所述的通信设备,其中,所述确定模块,用于按照终端设备维度、载波维度、时域维度和频域维度中的至少一个,对所述目标PSFCH资源集合对应的SL HARQ反馈比特位进行级联,确定SL HARQ反馈信息。
- 根据权利要求38所述的通信设备,其中,所述目标上行信道与至少一个目标资源关联;其中,所述目标资源包括资源池、子信道、带宽部分BWP或载波。
- 根据权利要求69所述的通信设备,其中,所述目标上行信道与所述至少一个目标资源关联的方式包括以下至少一项:所述目标上行信道与所述至少一个目标资源中的一个或多个目标资源关联;所述目标上行信道的资源集与所述至少一个目标资源中的一个或多个目标资源关联;所述目标上行信道的格式与所述至少一个目标资源中一个或多个目标资源关联;所述目标上行信道的序列与所述至少一个目标资源中一个或多个目标资源关联;所述目标上行信道的频域资源与所述至少一个目标资源中一个或多个目标资源关联;所述目标上行信道的时域资源与所述至少一个目标资源中一个或多个目标资源关联;所述目标上行信道的跳频图样与所述至少一个目标资源中一个或多个目标资源关联。
- 根据权利要求69或70所述的通信设备,其中,所述目标上行信道与目标旁链路信道资源关联,所述目标旁链路信道资源包括PSFCH资源、物理旁链路共享信道PSSCH资源和物理旁链路控制信道PSCCH资源中的至少一个。
- 根据权利要求71所述的通信设备,其中,所述目标旁链路信道资源包括所述至少一个目标资源对应的旁链路信道资源范围外的至少一个资源。
- 根据权利要求72所述的通信设备,其中,所述至少一个目标资源对应的旁链路信道资源范围外的至少一个资源对应的所有SL HARQ反馈信息均为肯定确认ACK信息和否定确认NACK信息中的一种。
- 根据权利要求71所述的通信设备,其中,所述目标旁链路信道资源为所述至少一个目标资源对应的旁链路信道资源范围内的资源。
- 一种通信设备,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至37中任一项所述的方法的步骤。
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至37中任一项所述的方法的步骤。
- 一种计算机程序产品,所述程序产品被至少一个处理器执行以实现如权利要求1至37中任一项所述的方法。
- 一种通信设备,包括所述通信设备被配置成用于执行如权利要求1至37中任一项所述的方法。
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