Methods for determining feedback information between sidelinks and communication devices.

Abstract

Page 1 of 49 pages. Details of the invention A name that reflects an invention. Methods for determining information input / output of site links and communication devices. The field of science related to invention. 5. The inventions presented are related to the field of communication, and especially to... Methods for determining information input / output of site links and communication devices. Background of the art or science involved. Currently, New Radio (NR) mobile communication systems (shortened to NR systems) support... This Sidelink (SL) transmission (also known as direct link transmission or similar terms). 10. To improve the reliability and resource utilization of data transmission on SL mechanisms. The Hybrid Automatic Repeat Request (HARQ) input can be used. This SL Technology Frog Specifically, the feedback mechanism process SLHARQ might include: after receiving... ฺ After receiving the SL data, the user receiving the SL will provide SLHARQ feedback information to indicate the transmission status. 15SL is successful or fails after receiving SLHARQ feedback information on the SL sent by the user. It is possible to determine whether a previous SL transmission was successful or not. The SL user could be either the sender or the receiver. This means that the same user can receive or send separately in different time domains or frequency domains. SLHARQ feedback information includes acknowledgment (ACK) information and... Negative Acknowledgement (NACK) information 20. In addition, data transmission via SL packets may be performed on SL between users; therefore, ้ ้ It is likely that the control node will not be able to directly learn that the transmission of SL data packets has been successful. Or not, and the user needs to send SLHARQ feedback information to the control node so that the node... The controller can further specify whether the transmission over SL was successful or not. ฺ Therefore, the solution is to define the sidelink feedback information in order to obtain... 25 effective and reliable HARQ recommendations are available on the sitelink, therefore it can be reflected... This Is it accurate that the data transmission on the site link was successful? Characteristics and purpose of the invention. One of the technical problems to be solved by the form of the proposed invention is how to print page 2 of a 49-page document. Effective and reliable HARQ feedback can be implemented on site links. According to the first characteristic, the form of the invention presented shall have a method for determining it. The input information from the site link is processed by the communication device using methods which include: Defining SLHARQ feedback information based on a hybrid automated request. This 5 sidelinks based on the PSFCH resource set, channel feed, sidelink, target image. The target PSFCH resource set is configured based on the specified PSFCH signal channel. According to the target time interval, where the target time interval is the distance between the target upload signal channel and... PSFCH According to the second characteristic, the proposed invention is a communication device which includes: 10 predefined modules, customized to provide SLHARQ feedback information upon request. Hybrid side-link automatic transmission based on PSFCH resource set, side-link feed channel. This The physical target is linked to the target signal channel, where the PSFCH resource set is located. The target is set based on a target time interval, where the target time interval is the distance between... The signal channel targets PSFCH. 15. According to the third characteristic, the proposed invention is a communication device which includes: Memory, processor, and computer programs are stored in memory and executed by the system. The program is executed by the processor; when a command is given by the processor, the computer program will be executed accordingly. ฺ The steps of the method according to the first characteristic. This According to the fourth characteristic, the proposed form of the invention provides for additional data storage media. 20. Computers can read, which stores computer programs, and which are executed by the processor. ฺ A computer program executes according to the steps of a method of a certain nature. In the form of an invention, the proposed PSFCH resource set targets are linked to... The target uplink channel can be obtained from the target time frame with precision between... The uplink target channel is connected to the sidelink physical channel (PSFCH) to create... 25. Mapping relationship between target upload channel and target PSFCH resource set. For this purpose, the SLHARQ feedback information is consistent with the PSFCH resource set. The target may be mapped to the target uplink channel for reporting in this manner; This A reliable and efficient HARQ feedback system on sidelinks was achieved, so that the receiving party could access page 3 of 49 pages. SLHARQ feedback information can be learned accurately over the long term regarding data transmission on the site. Whether the link is successful or not, therefore, improves the reliability and resource utilization of the. This Send data via SL. Brief description of the painting. The five illustrations provided here are used to provide further understanding of the invention. ้ ่ Presented and assembled as part of an invention that presents a sample appearance of... The presented invention and its description are used to describe the presented invention and are not considered evidence of an invention itself. Inappropriate content regarding the invention presented in the accompanying drawing: Figure 1 shows a flowchart of the structured method for determining the input information of a sidelink. 10. Based on the presented invention's characteristics. Figure 2 is a flowchart of the methodology for defining the target PSFCH resource set according to... The appearance of the invention presented. Figure 3 is a diagram illustrating the structure of sidelink channel resource interaction. A simulation scenario in which UuSCS is equal to SLSCS according to the characteristics of the proposed invention. Figure 4 is a diagram illustrating the structure of sidelink channel resource interaction. A simulation scenario in which UuSCS is greater than SLSCS according to the characteristics of the proposed invention. Figure 5 is a structural diagram of the sidelink channel resource interaction. A simulation scenario in which UuSCS is less than SLSCS according to the characteristics of the proposed invention. Figure 6 is a diagram showing the structure of another sidelink channel resource growth configuration. 20. One simulated scenario where UuSCS is less than SLSCS according to the characteristics of the proposed invention. Figure 7 is a diagram showing the structural layout of a communication device based on its appearance. Invention presented. Figure 8 is a structural diagram of a terminal device based on its configuration. Inventions presented and Figure 9 is a structural diagram of network devices based on their configuration. Invention presented. Page 4 of 49 pages. Full disclosure of the invention. This application reserves the retroactive rights to Chinese patent application number 202010066291.X, which was filed domestically. China, January 20, 2020, which is included herein by reference in all content. This The following will clearly and completely explain the technical solution in the form of... 5. The inventions presented include illustrative drawings to clearly show the characteristics of the presented inventions. It can be argued that the described form represents more of the form of the presented invention than it actually is. All of the other forms and appearances obtained by individuals with ordinary skills in craftsmanship. Based on the appearance of the presented invention, it will remain so without any creative effort. Within the scope of the protection of the proposed invention. 10. The technical solutions to the presented invention may be applied to systems. Diverse communication methods, such as the Global System for Mobile Communications (Global System for Mobile). Communications (GSM), Code Division Multiple Access (CDMA) system. Wideband Code Division Multiple Access Wireless, WCDMA), General Packet Radio Service (GPRS), long-term evolution / ฺ 15. Long-Term Evolution Advanced (LTE-A) and NR ClientUE, also known as a mobile terminal, is a device used by mobile users. Or something similar may communicate with at least one main network via the network. Radio Access Network (RAN): The user's device may be a terminal device such as... Mobile phones (also called "mobile" phones) and computers with mobile terminals. For example, a user's device might be a portable, handheld mobile device. A computer in a body or vehicle that exchanges language and / or information with a radio access network. A network device, also known as a base station, may be a BaseTransceiverStation. BTS) in GSM or CDMA may be a base station (NodeB) in WCDMA or it may be a base station that... Evolved NodeB (eNB or e-NodeB) in LTE or 5G base station (gNB). 25. In the proposed invention, NRSL supports three transmission modes: Broadcast, multicast, and unicast modes. NRSL supports multicast transmission modes. The two cases are multicast using a connection and multicast without a connection (multicast mode). ฺ The connection-based casting refers to a simulation where connections are established between UEs. (Page 5 of 49) Multicast and non-connected multicast modes refer to scenarios in which UEs A multicast server does not recognize other UEs in the group and does not establish connections in the case of multiple multicast servers. The number of receptions supports two mechanisms when performing HARQ feedback: Mechanism 1 (Option 1: NACK feedback only or non-connected mechanism): This 5. If the information is received but cannot be decoded, the NACK information will be fed back; otherwise, there will be no... This In this case, feedback is processed if the NACK is not received. The sending end will consider all receiving endpoints as receiving the message. Successfully receiving and decoding data, this mode can be used in multitasking scenarios. Non-connected casting Mechanism 2 (Option 2, ACK / NACK feedback or linkage mechanism): If received. 10. The information is not decryptable, or if sidelink control information is received (control information). If sidelink control (SCI) does not receive information, NACK will be fed back, and if information is received, If the code is correctly decoded, the ACK information will be fed back. In this case, if the sending destination receives the NACK. The recipient, whether receiving or not receiving the message (ACK or NACK), will determine whether the recipient considers the message as received or not. The message sent to the receiving user fails if a ACK (Backup Message) is received by the receiving end only at that end. 15. The sender will consider whether the transmission of the message sent to the recipient's user was successful and if a ACK (Backup Message) was received. All receiving destinations and sending destinations will consider the transmission of a transport block (TransportBlock). TB) This mode, which is compatible with successful multicast simulation scenarios using connectivity, can be used. This The solution to the technical problem, presented in the form of a proposed invention, is described as follows: Details are provided below, along with illustrative images. 20. Referring to Figure 1, the presented invention's form provides a method for defining information. Sidelink feedback, which is actuated by a communication device; the communication device may be a network device. Or, for terminal devices, the method includes the following steps: ้ ้ Step 101: Define SLHARQ feedback information based on an automated request. ้ ้ A hybrid sidelink based on the PSFCH resource set, a physical sidelink feedback channel. 25 targets are associated with the uplink channel target, by the PSFCH target resource set. The value is set based on a target time interval, where the target time interval is the distance between signal channels. The link to the PSFCH target is on page 6 of 49. Optionally, the target SL input channel is used for transmitting SL feedback information. HARQ, and may include a Physical Uplink Control Channel. PUCCH) or Physical Uplink Shared Channel (PUSCH) The target audio channel may be allocated by the network equipment. 5 options to choose from, target time period between the target upload channel and the upload channel. The Physical Sidelink Feedback Channel (PSFCH) includes: Slot spacing, for example, 0 slots to 15 slots, may be customized or specified by... Network devices may have at least one target time period, in addition to feedback positions. The SLHARQ feedback information is consistent with the PSFCH resource in the PSFCH resource set. 10 targets on the target channel can be configured based on target time periods. The target may be identified by network devices using radio resource control (RF) signaling. Resource Control (RRC), Downlink Control Information (DCI). Or other signaling methods. As an option, in this example, the starting point of the target timeframe might be the starting point of the resources. 15. The time domain (for example, a slot) where PSFCH is located and the end point of that is the starting point of... ้ ้ ้ ้ ้ Time domain resources (such as slots) where the target upload signal is located should be noted that may... There are other cases for the start and end points of a target time period, for example, the beginning of a time period. ่ ้ ่ The target might be the end point of a time domain resource (e.g., a slot) where the PSFCH is located. ้ ้ It might be during the time of receiving the PSFCH item. With 20 selectable options, the target timeframe may be described based on the distance between individual service providers. Air interface (UuSCS) Air interface (Uu, where U represents the user symbol) The network interface (and its universal symbols) is customized to facilitate communication between... UE and the Evolved Universal Terrestrial Radio (UERF) network for accessing international terrestrial radio. Access Network (EUTRAN) implements sub-carrier spacing (SCS). 25 may also be referenced as PUCCHSCS or ULSCS. UuSCS may be PUCCHSCS or SCS. But it is not limited to that alone. Optionally, SLHARQ feedback information includes ACK information or other information. NACK is the value of the feedback bit that corresponds to the ACK information. It may be set to "1" and the value of the bit... Page 7 of 49 pages. The feedback corresponding to the NACK information may, alternatively, be set to "0", the value of the bit. This The feedback (ACK) corresponding to the information may be set to "0" and the value of the feedback bit... This Consistent with the information, NACK is set to "1". In addition, feedback information is passed. SLHARQ will execute on the target uplink channel in the form of an SL codebook, for feedback. 5. SLHARQ feedback information that corresponds to a number of data points, for example: This SLHARQ feedback information that corresponds to multiple TBs on the same resource. To reduce the complexity of feedback, an alternative implementation is that the SL codebook could be a bitmap. (bitmap) or matrix; additionally, the SL codebook generation mode is based on SL feedback information. The HARQ value defined in the proposed invention may reduce the burden on the user in ways such as: 10. Complex reporting and encoding, and lower codebook costs while improving efficiency. The reliability of SLHARQ feedback information is based on the transmission of the input link. Optionally, there may be at least one resource in the target PSFCH resource set. This Additionally, the target PSFCH resource set may be a set of time domain resources, for example, a set of... Opportunity (PSFCH), or it could be a resource in another dimension, for example, the frequency domain dimension, the user dimension. 15. The service, or terminal device, i.e., the user dimension, i.e., the target PSFCH resource set may... It is a set of resources that correspond to a number of dimensions. In the form of an invention, the proposed PSFCH resource set targets are linked to... The target uplink channel can be obtained accurately from the target time period between... The uplink target channel is connected to the sidelink physical channel (PSFCH) to create... 20. Mapping relationship between target upload channel and target PSFCH resource set. For this purpose, the SLHARQ feedback information is consistent with the PSFCH resource set. The target may be mapped to the target uplink channel for reporting in this manner; This Efficient and reliable HARQ feedback on a site link is achieved, so that the information recipient can receive it. SLHARQ feedback can accurately learn whether data transmission on a sidelink was successful. 25. Therefore, it improves the reliability and resource utilization of data transmission. This On SL As an option, referring to Figure 2, the specific appearance of the method for determining information. The feedback SL provided in the presented invention may include additional steps. Page 8 of 49. The following process is to define the target PSFCH resource set associated with the uplink channel. This target: Step 201: Determine the time domain position that corresponds to the target time period. Step 203: Define, based on time domain position, the PSFCH resource set that corresponds to... This 5 target signal channels It might be understood that the feedback loop, i.e., the time domain position, of the supporting channel. Targets can be set based on target time periods, and additionally, all PSFCH resources. This In the time domain, it can be configured as a resource in the corresponding PSFCH resource set. Target signal transmission channel For example, if the target time period is represented by Y2, and the slot, i.e., position... The time domain, where the target transponder channel is located, is represented by slot n, the domain position. The time corresponding to Y2 includes the slot corresponding to (n–Y2), and in addition, PSFCH resources. (For example, the PSFCH opportunity) in the slot corresponding to (n–Y2) is the total resource in the set. PSFCH resources that are compatible with the target auxiliary channel. 15 options are available; the slot might be a Uu slot in this case, the Uu slot that corresponds to Y2 refers to... The slot corresponding to (n–Y2) and of which SCS is UuSCS. As an option, the slot could be an SL slot; in this case, the SL slot corresponding to Y2 refers to... This At least one SL slot goes up to the stack of bus slots (n–Y2), for example, when UuSCSUuSCS, an example is provided below: Specific example 1 In specific example 1, UuSCS=SLSCS=30KHz, refer to Figure 3: (1)Assume that the target time interval {Y2}={1,2,4,8},K=2,and the density PFSCHN=4, 25. Since there is a PSFCH (i.e., PSFCH resource) at the position where Y2={4,8}, the domain position. The time corresponding to n–{4,8} is the PUCCH feedback difference (i.e., the auxiliary channel). The target), or PSFCH opportunity in the time domain, slot(n–4) and slot(n–8), are opportunities. The PSFCH is linked to PUCCH and corresponds to the N-bit sequence of the SL feedback information on page 13 of 49 pages. HARQ, and user feedback 2?N=8 bits of feedback information SLHARQ slot n is the position. The time domain in which PUCCH is located. This (2)Assume that the target time interval {Y2}={1,2,4,8},K=2,and the density PFSCHN=4, The time domain position corresponding to n–{1,2,4,8} is the PUCCH feedback window, or 5 opportunities for PSFCH in the time domain positions: slot(n–1), slot(n–2), slot(n–4), and slot(n–8). This is a PSFCH opportunity that is linked to PUCCH and aligns with the N-bit sequence of information. SLHARQ feedback is given, and the user provides 4?N=16 bits of SLHARQ feedback information. Each slot (n–1) and slot (n–2) corresponds to 4 bits of NACK information, and slot (n–4) Each slot (n–8) corresponds to 4 bits of the SLHARQ feedback information, which is assigned. 10. The user accesses the PSFCH that receives the status at slots (n–4) and (n–8). Slot n is the time domain position. Where PUCCH is located. Specific example 2 In specific example 2, UuSCS>SLSCS, for example, UuSCS=30KHz, and SLSCS=15. KHz, referring to Figure 4: 15(1)Assume that the target time interval {Y2}={1,2,4,8},K=2,and the density PFSCHN=4, Since there is a PSFCH opportunity (i.e., PSFCH resource) at the position where Y2={8}, the domain position. The time corresponding to n–{8} is the PUCCH feedback window (i.e., the auxiliary signal channel). The target), or PSFCH opportunity in the time domain, slot(n–8), is the linked PSFCH opportunity. With PUCCH, and consistent with the N-bit of the SLHARQ feedback information, and user feedback. 201?N=4 bits of feedback information SLHARQ slot n is the time domain address where PUCCH Located (2)Assume that the target time interval {Y2}={1,2,4,8},K=2,and the density PFSCHN=4, The time domain position corresponding to n–{1,2,4,8} is the PUCCH feedback window, or The probability of PSFCH in the time domain positions is Slot(n–1), Slot(n–2), Slot(n–4), and Slot(n–8). 25 is a PSFCH opportunity that is linked to PUCCH, and conforms to the N-bit gradient of the information. SLHARQ feedback is given, and the user provides 4?N=16 bits of SLHARQ feedback information. Each slot (n–1), slot (n–2), and slot (n–4) corresponds to 4 bits of information NACK, page 14 of 49 pages. And the slot (n–8) corresponds to 4 bits of SLHARQ feedback information, which is defined by the user. According to the PSFCH that takes the state at slot(n–8), slot n is the time domain position where the PUCCH is located. This Specific example 3 In specific example 3,UuSCSUuSCS, the example is provided below: Specific example 1 5. In specific example 1, UuSCS=SLSCS=30KHz, refer to Figure 3: (1)Assume that the target time interval {Y2}={1,2,4,8},K=2,and the density PFSCHN=4, Since there is a PSFCH opportunity (i.e., PSFCH resource) at the position where Y2={4,8}, domain position The time corresponding to n–{4,8} is the PUCCH feedback difference (i.e., the auxiliary channel). The target), or PSFCH opportunity in the time domain, slot(n–4) and slot(n–8), is the opportunity. 10PSFCH is linked to PUCCH and corresponds to the N-bit slope of the SL feedback information. HARQ, and user feedback 2?N=8 bits of feedback information SLHARQ slot n is the position. The time domain in which PUCCH is located. This (2)Assume that the target time interval {Y2}={1,2,4,8},K=2,and the density PFSCHN=4, The time domain position corresponding to n–{1,2,4,8} is the PUCCH feedback window, or 15 opportunities for PSFCH in the time domain positions, slot(n–1), slot(n–2), slot(n–4), and slot(n–8). This is a PSFCH opportunity that is linked to PUCCH and aligns with the N-bit sequence of information. SLHARQ feedback is given, and the user provides 4?N=16 bits of SLHARQ feedback information. Each slot (n–1) and slot (n–2) corresponds to 4 bits of NACK information, and slot (n–4) Each slot (n–8) corresponds to 4 bits of SLHARQ feedback information, which is assigned. 20. The user accesses the PSFCH that receives the status at slots (n–4) and (n–8). Slot n is the time domain position. Where PUCCH is located. Specific example 2 In specific example 2, UuSCS>SLSCS, for example, UuSCS=30KHz, and SLSCS=15. KHz, referring to Figure 4: 25(1)Assume that the target time interval {Y2}={1,2,4,8},K=2,and the density PFSCHN=4, Since there is a PSFCH opportunity (i.e., PSFCH resource) at the position where Y2={8}, the domain position. The time corresponding to n–{8} is the PUCCH feedback window (i.e., the auxiliary signal channel). The target), or PSFCH opportunity in the time domain, slot (n–8), is the PSFCH opportunity that links to page 19 of 49 pages. With PUCCH, and consistent with the N-bit of the SLHARQ feedback information, and user feedback. 1?N=4 bits of feedback information SLHARQ slot n is the time domain address where PUCCH Located (2)Assume that the target time interval {Y2}={1,2,4,8},K=2,and the density PFSCHN=4, 5 time domain positions corresponding to n–{1,2,4,8} are PUCCH feedback windows, or The probability of PSFCH in the time domain positions is Slot(n–1), Slot(n–2), Slot(n–4), and Slot(n–8). This is a PSFCH opportunity that is linked to PUCCH and aligns with the N-bit sequence of information. SLHARQ feedback is given, and the user provides 4?N=16 bits of SLHARQ feedback information. Each slot (n–1), slot (n–2), and slot (n–4) corresponds to 4 bits of NACK information. 10 and slots (n–8) correspond to 4 bits of SLHARQ feedback information, which is defined by the user. According to the PSFCH that takes the state at slot(n–8), slot n is the time domain position where the PUCCH is located. Specific example 3 In specific example 3, UuSCS <SLSCS,ตัวอย ่างเช่น,UuSCS=15KHz,และSLSCS=30 KHz, referring to Figure 5: 15(1)Second number N2=value of density PSFCH??SLSCS / UuSCS / value of Density PSFCH?=N??2?SL-?Uu / N?Assuming the target time interval {Y2}={2}, K=2, and the The density PFSCHN=4, since there are 2 SL slots in the Uu slot corresponding to slot (n–2), and SL. Slot 4 includes PSFCH, but SL slot 5 does not include PSFCH. Slot (n–2) corresponds to N??2?SL-. ?Uu / N?=4??2 / 4?=4 bits of feedback information SLHARQ, and the user provides feedback 1?N=4 of the bits. 20 SLHARQ feedback information, where 4 bits of SLHARQ feedback information are assigned. The user accesses the PSFCH at SL slot 4, where n is the time domain location where PUCCH is situated. This (2) The second number N2 = value of density PSFCH?SLSCS / UuSCS=N?2?SL-?Uu Assume that the target time interval {Y2}={2}, K=2, and density PFSCHN=4, since there are 2SL. Slots in Uu slots that are compatible with slot(n–2), and SL slots 4 include PSFCH, but SL slots 5 do not. 25 including PSFCH, slot (n–2) corresponds to N?2?SL-?Uu=4?2=8 bits of feedback information. SLHARQ, where 2SL slots each correspond to 4 bits of feedback information SLHARQ,4 The bits of SLHARQ feedback information corresponding to bus slot 4 are determined by the user according to PSFCH on page 20 of 49 pages. The status received at SL slot 4 and slot 5 corresponds to 4 bits of information for NACK slot n, which is... The time domain location where PUCCH is located. This (3)Second number N2 = value of N of density PSFCH assuming the target time period {Y2}={2},K=2, and density PFSCHN=4, since there are 2 SL slots in the corresponding Uu slot. 5 with slot(n–2), and SL slot 4 includes PSFCH, but SL slot 5 does not include PSFCH, slot(n–2). Consistent with N=4 bits of SLHARQ feedback information, where each 2SL slot corresponds. With 4 bits of SLHARQ feedback information, 4 bits of SLHARQ feedback information is used. Defined by the user according to the PSFCH that receives the status at SL slot 4, slot n is the time domain location where PUCCH is located. Located This 10 specific examples (4) In specific example 4, UuSCS <SLSCS,ตัวอย ่างเช่น,UuSCS=15KHz,และSLSCS=60 KHz, referring to Figure 6: (1)Second number N2=SLSCS / UuSCS=2?SL–?UuAssuming the target time interval {Y2}={1, 2},K=2, and densityPFSCHN=2, because there are 4SL slots in Uu slots corresponding to the slot. 15(n–2), and SL slots 8 and 10 include PSFCH, but SL slots 9 and 11 do not include PSFCH, SL slots Slots 8 and 10 in slot (n–2) correspond to 2?SL-?Uu=4 / 1=4 bits of SL feedback information. HARQ.SL slots 8 and 10 each correspond to 2 bits of SLHARQ feedback information, which Specifically defined by the user according to PSFCH that receives the status at SL slots 8 and 10, slot n is the position. The time domain in which PUCCH is located. 20(2)Second number N2=value of density PSFCH??SLSCS / UuSCS / value of Density PSFCH?=N??2?SL-?Uu / N?Assuming the target time interval {Y2}={1,2},K=2, and the The density is PFSCHN=2, since there are 4 SL slots in the Uu slot corresponding to slot (n–2), and SL. Slots 8 and 10 include PSFCH, but SL slots 9 and 11 do not include PSFCH. SL slots 8 and 10 are... Slot (n–2) corresponds to N??2?SL-?Uu / N?=2??4 / 2?=4 bits of SL feedback information. 25HARQ.SL slots 8 and 10 each correspond to 2 bits of SLHARQ feedback information, which Specifically defined by the user according to PSFCH that receives the status at SL slots 8 and 10, slot n is the position. The time domain in which PUCCH is located. Page 21 of 49 pages. (3)Second number N2=value of density PSFCH?SLSCS / UuSCS=N?2?SL-?Uu Assume that the target time interval {Y2}={1,2},K=2, and density PFSCHN=2, since there are 4SL. Slots in Uu slots that correspond to slots (n–2), and SL slots 8 and 10 including PSFCH, but SL Slots 9 and 11 exclude PSFCH, slot (n–2) corresponds to N?2?SL-?Uu=2?4=8 bits of 5. Feedback information SLHARQ, where each SL slot corresponds to 2 bits of information. The feedback SLHARQ.SL slots 8 and 10 each correspond to 2 bits of feedback information. SLHARQ, which is specifically defined by the user according to PSFCH that accepts the status at SL slots 8 and 10.SL Slots 2 and 4 each correspond to 2 bits of NACK information. The parameter K in one of the specific examples previously described below: The PSFCH density is N, meaning that the probability of a PSFCH appearing in N slots once, where N=1, 2, 10 ... ้ ้ There are 4 options to choose from in implementation. At each PSFCH timeframe, there will be N possible opportunities. The PSFCH opportunity and the timing of the PSSCH opportunity linked to the bus slot will not be faster than... m+K, where K=2,3, and slot m is the time domain position where the PSFCH probability is located. This As an option, a method can be used to define the SL feedback information provided in a specific format. Of the 15 inventions presented, in addition to selecting at least one of the specific modes mentioned, Before determining the second number, the mode of pre-determining a constant for the second number may also be used. While one mode is certainly chosen, another mode may also be selected, and includes, but is not limited to, the content mentioned. I arrived earlier. As an option, a method can be used to define the SL feedback information provided in a specific format. The 20th invention presented is a procedure for determining SLHARQ feedback information based on... This The second number of the first sidelink channel resources that corresponds to each resource. PSFCH in the PSFCH resource set may be implemented based on different solutions. This includes, but is not limited to, the content disclosed in the following specific forms. ้ ้ Specific appearance 1 25. In specific form 1, the process of defining SLHARQ feedback information is based on... The second number of the first sidelink channel resources that corresponds to each resource. The PSFCH resource set, specifically the PSFCH target, may proceed as follows: Page 22 of 49 pages. The configuration of sidelink channel resources is used for the transmission of sidelink channels. This The first matching bit domain, time domain SLHARQ feedback, matches the side channel resource. The first link is set to the decoded state or the SLHARQ feedback state corresponding to the channel. Sidelinker Five selectable options; the first signal transmitted that corresponds to the first sidelink channel indicates that... The target SLHARQ feedback channel is used for the transmission of SLHARQ feedback information by sending... The first signal may include a control signal (e.g., DCI or SCI) or a control signal. Customize The decoded status includes decoding success or decoding failure. 10. The SLHARQ feedback status includes the ACK or NACK status in the case of success. In decoding or ACK status, the value of the time domain feedback bit SLHARQ corresponds to... The first sidelink channel resource may be set to "1" in the event of decoding failure. This Or the NACK state, the value of the time domain bit of the SLHARQ feedback that corresponds to the resource. The first sidelink channel may be optionally set to "0", and may contain at least one time domain bit. 15. Feedback SLHARQ and above. In addition, in the case of discontinuous transmission... Transmission (DTX), the value of the time domain bit of the feedback SLHARQ that corresponds to the resource. The first sidelink signal channel is set to DTX, NACK, or ACK. This Specific appearance 2 In specific form 2, the SLHARQ feedback information determination process is based on... 20. The second number of sidelink channel resources corresponding to the first resource in sequence. The PSFCH in the target PSFCH resource set may perform the following actions: Setting, in the case that the initial preset condition is satisfied, all time domain bits ้ ้ ้ The corresponding SLHARQ input to the sidelink channel resource is returned as ACK information. The initial predefined conditions include one of the following: 25(1)Side link channel resources are used for the transmission of broadcast messages. (2) The SCI side link control information that corresponds to the first side link channel indicates that it is not SLHARQ feedback information is received via the first sidelink transmission on page 23 of 49. The process is carried out through the compatible first sidelink channel resource, and the first sidelink channel. Including at least one in PSSCH or PSCCH. (3) There is a configuration by the network device or a pre-configuration that there is no information. SLHARQ has been returned. 5(4)SLHARQ feedback is selectively disabled, higher layer signaling indicates It indicates that SLHARQ feedback is disabled. (5)Alternative Mode-1 of the multicast is used for HARQ feedback, and NACK information. The resources available for the first sidelink channel are not selectively available; they are either configured or modified. The network device or pre-configuration indicates that Multicast Alternative-1 mode is selected. This 10(6)The first sidelink channel resource is a resource for which permissions are customized but Not used. Specific appearance 3 In specific form 3, the SLHARQ feedback information determination process is based on... The second number of the first sidelink channel resources that corresponds to each resource. The 15PSFCH files in the target PSFCH resource set may be executed as follows: The configuration, in the event that the second preset condition is satisfied, all time domain bits are executed. The corresponding SLHARQ input to the sidelink channel resource is returned as NACK information. The second predetermined condition includes one of the following: This (1) There is no SLHARQ feedback information that corresponds to the sidelink channel resources. The first 20 received. (2) No PSFCH is available that is compatible with the received sine link channel resources. (3) There is no second signal for sidelink channel resource scheduling. This The first signal detected, the second signal may include a control signal (e.g., DCI or...). This SCI) 25(4)Sidelink channel resources are not used for sidelink channel transmission. The first one that is consistent. (5)Sidelink channel resources are preempted on page 24 of 49. (6) Transmission that is consistent with the first sidelink channel resource is released, abandoned, or ้ ้ cancel (7) The primary sidelink channel resources are used for the transmission of the primary sidelink channel. That is consistent, and the third signal transmission that is consistent with the first sidelink channel indicates the This 5. Perform SLHARQ feedback on the support channel corresponding to the time domain position. Beyond the target time domain position, that is, the supporting channel that corresponds to the position. Other time domains will differ from the target transmission channel, including the third transmission. This Control signals (e.g., DCI or SCI) or higher layer signaling; lower layer signaling. Higher-level signals include at least one aspect of RRC signaling, which is a convergence protocol signaling. This 10. Packet Data Convergence Protocol (PDCP), a signaling protocol. Service Data Adaptation Protocol (SDAP), radio link control signaling. (RadioLink Control, RLC), Medium Access Control (MAC) signal transmission, Or something similar. Specific characteristics of the 4 shapes 15 in specific form 4, in the case where the third number of the first sidelink channel resources in The second number of sidelink channel resources used for the transmission of the TB transport block. Similarly, or using PSSCH, the process of defining SLHARQ feedback information is based on... ้ ้ The second number of the first sidelink channel resources that corresponds to each resource. In the PSFCH resource set, the target PSFCH may be operated according to one of the following contents: 20(1) Set the time domain bit value of the SLHARQ feedback corresponding to each third number of This The first sidelink channel resource is the decoded state or SLHARQ feedback state. Consistent with the first sidelink channel corresponding to each third of the resources. Sidelink channel along the slope. (2) Set the value, for the fourth number of the first sidelink channel resources in the third number. 25 first sidelink channel resources, time domain bits of SLHARQ corresponding to each. The fourth of the first sidelink channel resources is the decoded state or feedback state. The SLHARQ corresponds to the first sidelink channel corresponding to each fourth resource. Sidelink channel on page 25 of 49. (3) The value, for the first sidelink channel resource in addition to the fourth number of This The first-third sidelink channel resource of the first-sidelink channel resource, every bit. The time domain of the SLHARQ feedback corresponds to each other first sidelink channel resource. It is one of the ACK or NACK information types. 5(4) Set the time domain bit value of the SLHARQ feedback that corresponds to each fourth number of This The first sidelink channel resource is the decoded state or SLHARQ feedback state. Consistent with the first sidelink channel corresponding to each fourth channel resource. The first sidelink follows the slope, and the settings for each bit of the time domain feedback SLHARQ correspond to... Other sidelink channel resources are included as ACK information or NACK information. Of the 10 choices, the value of the fourth number in (2) to (4) can be set to 1. This Optionally, the fourth of the first sidelink channel resources in (2) to (4) is At least one sidelink channel resource has a time domain address assigned to that position. This The pre-configured location (for example, the last position) is one-third of the sidelink channel resources. first 15(5) Set the time domain bit value of the SLHARQ feedback that corresponds to each third number of This The first sidelink channel resource is the decoded state or SLHARQ feedback state. Consistent with the first sidelink channel that corresponds to the resource at the pre-configured location. This The third number of sidelink channel resources in descending order. As an option, the preset position could be at least one last position up to which... Twenty time-domain positions in the third of the sidelink channel resources are listed. For example, a time domain SLHARQ feedback bit that corresponds to the channel resource. All first-thirds of the first-sidelink channel resources are set to the state of... ้ ้ Decoded or the SLHARQ feedback status corresponding to the first corresponding sidelink channel. The first and last of the three sidelink channel resources. First 25 As an option, in another specific form of the method for determining SL feedback information. Provided in the form of the presented invention, the PSFCH resource kit target is linked to page 26 of 49 pages. The target input signal channel is determined based on at least one of the initial feedback times or times. This Enter the second nesting chamber. This That is, in order to determine the information for SL feedback, the recorded information is stored in the characteristics of... The proposed invention, in addition to the mode of defining the PSFCH resource set, provides a corresponding target. 5. In conjunction with Figure 2, the target PSFCH resource set may also be defined based on at least one at a time. The first or second feedback input time, in addition, may provide SLHARQ feedback information. It is determined based on the target PSFCH resource set. Optionally, the first and second input times can be set sequentially. Based on at least one of the following modes: Customization by control node; Customization; This 10 in advance; indicated by the network device; defined in the protocol; or; indicated by another. One terminal device is one where the values ​​of different parameters can be set in a specific order in different modes. Same mode or different mode? As an option, a method can be used to define the SL feedback information provided in a specific format. The proposed invention is a process for determining the target PSFCH resource set based on... 15. At least one of the first or second reverse feed times may be performed according to the pattern. ้ ้ The following are the only differences. Specific appearance 1 In specific form 1, the target PSFCH resource set is associated with the uplink channel. The target is determined by the resource location where the target upload channel is situated and the feedback time. The first 20 times This For example, in the case where the resource location where the target upload channel is situated is a slot. n, and the first feedback time is T, the required feedback information SLHARQ may be... This It is determined based on the slot that corresponds to n–T. Specific appearance 2 In specific form 2, the duration of the feedback time is determined by the resource location. The target input channel, the first feedback time, and the second feedback time, and the set. The target PSFCH resource linked to the target signal channel is defined according to its time period. The time to return to page 27 of 49 pages. As an option, in specific form 2, each target time within the feedback time period will... Consistent with at least one bit of feedback time SLHARQ For example, in the case where the resource location where the target upload channel is situated is a slot. n, the first feedback time is T, and the second feedback time is L, feedback information SL. ้ ้ The required 5HARQ feed time is determined based on a feed time duration not exceeding 5 lots (n– T) Each slot within the feedback time period corresponds to a prime number of time domain bits. The feedback SLHARQ is specific, if T=1, and L=6, for each slot in a given time period. ฺ The feedbacks from slot (n–6) to slot (n–1) will correspond to a prime number of bits. As an option, a method can be used to define the SL feedback information provided in a specific format. 10. Of the inventions presented, the target time includes resources in the PSFCH resource set. ฺ Following the examples given previously, each slot, including the PSFCH chance (i.e., The resources in the PSFCH target resource set) within the aforementioned feedback period will be consistent with... The prime number of bits in the time domain of the SLHARQ feedback, specifically if T=1 and L=6, At least one slot during the feedback time period from slot (n–6) to slot (n–1), including 15 chance PSFCH and conforms to the prime number of bits. Optionally, the time domain position corresponding to the target time period may be set within a given time range. Regarding the feedback time, continuing from the example previously given, if T=1, L=6, and the set of values ​​of... The target time interval Y2 is {1,4,6,8}, the slot (i.e., time domain position) corresponding to Y2={4, 6} It is located within the feedback time period from slot(n–6) to slot(n–1), and in addition, The 20 PSFCH opportunities that align with the previously mentioned target PSFCH resource set are Specific appearance 3 In specific form 3, the feedback time duration is determined by the resource location. The target signal channel, the second feedback time, and the target PSFCH resource set. ้ ้ The linked signal channel target is determined by the feedback time period. 25 options are available, in specific format 3, each target time within the feedback time period will... Consistent with at least one bit of the time domain of the SLHARQ feedback, for example, each slot which... This includes PSFCH opportunities (i.e., resources in the target PSFCH resource set) over a period of time. The above feedback corresponds to the prime number of bits in the time domain of the SLHARQ feedback, page 28 of 49. As an option, a method can be used to define the SL feedback information provided in a specific format. For the proposed invention, the target time includes resources in the PSFCH target resource set. From the above perspective, feedback information in the time domain dimension is consistent with the set. The target PSFCH resources can be defined through the content previously mentioned. Five selectable options are available for determining the SL feedback information provided in the specified format. Of the proposed invention, each PSFCH resource in the PSFCH target resource set is consistent. The frog finds the number of bits in the time domain of the SLHARQ feedback. It may be understood that for SLHARQ feedback information that is in the frequency domain dimension and... In line with the target PSFCH resource set, each PSFCH resource in the PSFCH resource set. The 10 targets may correspond to the number of bits searched in the SLHARQ time domain feed. As a choice, the fifth number must include at least one of the following: (1)Number of corresponding PSSCH resource blocks (available) (ResourceBlock,RB) on Each second sidelink channel resource, by which second sidelink channel resources include: One of the PSSCH resources or PSCCH resources; 15(2)Number of sub-channels (available) on each channel resource. Second sidelink; (3) The maximum number of corresponding PSSCHs for transmission or demodulation on each Second sidelink channel resource; (4) The number of PSSCHRBs (available) or the number of sub-channels in at least one 20 Target Frequency Domain Resources, where Target Frequency Domain Resources include subchannels, Combined resources, or bandwidth portion (BandwidthPart,BWP); (5) The maximum number of pieces of information control SCI or the maximum number of pieces of information control SCI This PSCCH resources for transmission, blind spot detection, detection, or demodulation for each unit. The second sidelink channel resource, slot, or spacing; 25(6) The number of SCI pieces (available) or the number of PSCCH resources in at least This A target frequency domain resource, where target frequency domain resources include subchannels, Resource aggregation, or bandwidth (BWP) portion; page 29 of 49 pages. (7) The maximum number of SCI pieces or the maximum number of PSCCH resources in at least one. This Target frequency domain resources; (8) The number of SCI pieces (available) or the number of PSCCH resources on each The second sidelink channel resource, slot, or spacing; 5(9)Maximum number of PSFCH resources for transmission, which, optionally, includes the maximum number The amount of PSFCH resources received or the maximum number of PSFCH resources sent; (10) The maximum number of PSFCHRBs transmitted, which, optionally, includes the maximum number of Received PSFCHRBs or the maximum number of PSFCHRBs sent; (11) The number of PSFCHRBs (available) in one resource, which may also be referenced as 10. The number of rbSetPSFCH of PSFCHRBs available in the resource pool (indicates the set of PRBs used for). (True transmission and reception of PSFCH); (12) The maximum value (i.e., the maximum value in rbSetPSFCH) of the number of PSFCHRBs (available). At least two things that are consistent with each other include the resources. (13) The number of RBs in a subchannel that combines resources; 15(14) The maximum value in the number of RBs corresponding to at least two sub-channels combined. resource; (15)Number of PSFCHRBs in a subchannel that combines resources; (16) The maximum number of PSFCHRBs corresponding to at least two sub-channels. A resource hub; 20(17) The number of RBs included in BWP. (18) The number of PSFCHRBs which are included in BWP or (19) The number of PSFCHRBs (available) corresponding to each SIDE channel resource. Link two As an option, a method can be used to define the SL feedback information provided in a specific format. 25 of the proposed inventions, target period, PSFCH density, first number, second number. The third, fourth, and fifth numbers are determined in order based on at least one in the mode. The following are configured: by the control node; by pre-configuration; by device. Page 30 of 49 pages. Network; agreed upon in a protocol; or indicated by another terminal device, i.e., value. This Different parameters may be defined according to the same mode or different modes. It should be noted that the method for determining the SL feedback information is recorded in the characteristics of... The proposed invention is a method for determining input information in a consistent time domain dimension. 5. With regard to the PSFCH resource set, the target and the definition of feedback information in the frequency domain dimension. Consistent with the PSFCH resource allocation, the target is not specifically defined, and any combination is possible. Optionally, in terms of methods to define SL feedback information in the form of... The proposed invention, SL, aligns with the sixth number of service providers. It may be understood that, for the service provider dimension, SL in the form of the presented invention is consistent. 10. The sixth of the service providers can be considered in... ฺ The time domain dimension, as previously mentioned, and the frequency domain dimension, are used to address the problem of definition. The SLHARQ feedback information is used to process a hybrid sidelink automated response request. This Based on the PSFCH resource set, the physical sidelink feedback channel target is linked to... Target signal transmission channel 15 options are available in the method for determining SL feedback information in the form of... The proposed invention, the number of PSFCHRBs linked to the terminal device is seven. Optional, for unicast modeling and alternative modeling-1. In multicast mode, the value of the seventh number may be set to 1. This As an alternative, for the multicast alternative-2 scenario, the value of the seventh number may be... 20 is set to 2. This As an option, a method can be used to define the SL feedback information provided in a specific format. Of the proposed inventions, the sixth and seventh numbers may be determined in order based on, for example. One of the following modes is selected: Customization by control node; Pre-configuration; indication. By network devices; through agreed-upon protocols; or indicated by another terminal device. 25. In other words, the values ​​of different parameters may be set sequentially in the same mode or in different modes. They are different. Optionally, in terms of methods to define SL feedback information in the form of... The invention presented, step 101, may be carried out according to the following content: Page 31 of 49 pages. The SLHARQ feedback bit is linked to the target PSFCH resource set accordingly. At least one of the dimensions must be in the terminal device dimension, the provider dimension, the time domain dimension, or the frequency domain dimension. Therefore, to determine the feedback information SLHARQ. It can be understood that when the SLHARQ feedback information is assigned, the SL feedback bit... 5HARQs that are compatible with the target PSFCH resource set can be arranged and linked (i.e., linked together). Together) in a specific order or according to specific rules, in order to create a sequential and comprehensive map between sets. The PSFCH target resources and SLHARQ feedback information can be implemented. Accurate For example, if the target time period {Y2} is intersected first, the PSFCH opportunity will be arranged. 10 (for example, in descending order according to the value of Y2), and from then, the probability of PSSCH being associated with each. This The PSSCH odds will be listed (for example, according to the side link lot where the PSSCH odds are): (1)In the event that there is a possibility of PSFCH on the value of UY2 in {Y2}, and the codebook SL is only related to The density of PSFCHN and its time-domain dimensions; if one user on one occasion PSSCH can transmit M PSSCH gets the most; the corresponding SLHARQ feedback information will occupy (U?N?M) bits. 15(2)In the event that there is a possibility of PSFCH on the value of UY2 in {Y2}, and the codebook SL is related to the domain dimension. Time, PSFCHN density, and parameter Z (which indicates the number of PSFCHRBs (available)). This aligns with the PSSCH opportunities that correspond to each PSFCH resource in the PSFCH resource set. The goal, i.e., the fifth number in the frequency domain dimension, is the SLHARQ feedback information. Consistently, it will possess (U?N?M?Z) bits. 20(3)In the event that there is a chance of PSFCH on the value of UY2 in {Y2}, and the codebook SL is related to the domain dimension. Time, parameter X (which indicates the maximum number of PSFCHRBs transmitted to each). The PSFCH resource in the target PSFCH resource set, i.e., the fifth one in the frequency domain dimension, And the parameter P (which indicates the number of PSFCHRBs associated with the terminal device, i.e., Seventh) In the terminal device dimension, the corresponding SLHARQ feedback information will... 25 occupied (U?X / P) bits As an option, a method can be chosen to define SL feedback information in the form of an invention. The presentation may include the following additional content: Page 32 of 49 pages. The 1-bit Downlink Assignment Indicator (DAI) in the DCI indicates... ้ ้ Can the transmission of SLHARQ feedback information be performed on PUSCH? Optionally, in terms of methods to define SL feedback information in the form of... The proposed invention, a signal channel targeting at least one target resource, by... The five target resources include resource aggregation, subchannels, bandwidth segments (BWP), or service providers. It may be understood that the resources in the target PSFCH resource set are linked to the auxiliary channel. The target may be the same target resource, or it may be the same set of resources. The goal, and may be linked to any target resource, i.e., the target upload channel may... Provide only SLHARQ feedback information that corresponds to the PSFCH resource. 10 PSSCH resources in a specific target resource, or possibly provide SL feedback information. HARQ that aligns with PSFCH resources or PSSCH resources in certain specific target resources, Alternatively, it may provide SLHARQ feedback information that is consistent with the PSFCH resource. PSSCH resources within any target resource. Optionally, a mode in which the target upload channel links to at least one resource. The 15 goals include at least one of the following: ฺ (1) The target auxiliary channel is linked to at least one target resource. At least one target resource. As an option, the signal channel targets and links to various identifiers or devices (Identifier, ID) of at least one target resource. The 20 target resources may be indicated by control signals or higher layer signals. Higher layer signals include at least one of the following: RRC signaling, protocol signaling. Packet Data Convergence Protocol (PDCP), signaling. Service Data Adaptation Protocol (SDAP), signaling. RadioLink Control (RLC), Medium Access Control signaling. 25Control (MAC), or something similar. ฺ (2) The resource set of the target auxiliary channel is linked to the ID or IDs. At least one target resource is selected. Page 33 of 49 pages. Optionally, the resource set of the target upload channel is linked to an ID or IDs of. At least one target resource. (3) The format of the target channel link is linked to at least one resource. The goal is to target at least one target resource. This Five options are available; the target channel format is linked to an ID or IDs of the example. At least one target resource. (4) The sequence of the target link channel is linked to at least one target resource. This Go to at least one target resource; As an option, the sequence of the target upload signal channel is linked to the ID or IDs of the example. At least one target resource in at least one target resource in the sequence of the channel. The target link includes at least one element in the base sequence, initialization, and... Cyclic shift, phase rotation, or something similar. ฺ (5) The frequency domain resources of the target auxiliary channel are linked to at least one At least one target resource. 15. Selectable options: frequency domain resources, target channel linkage, and associated ID. Or the IDs of at least one target resource within at least one target resource. (6) The time domain resources of the target uplink channel are linked to at least one At least one target resource. Optionally, the time domain resource of the target upload channel is associated with an ID or 20 IDs of at least one target resource. (7) Frequency hopping scheme of the target auxiliary channel linked to at least one At least one target resource can be selected. This As an option, the frequency hopping scheme of the target linking channel is linked to the ID. This Or at least one ID (ID) of a target resource within at least one target resource in a H plan. Frequency hopping is used in communication devices to perform frequency hopping. ้ ้ Optionally, the target sidelink channel is linked to the sidelink channel resource. The target sidelink channel resource includes at least one of the PSFCH resources. PSSCH resource, or PSCCH resource page 34 of 49 pages. Selectively, in a specific example, the target sidelink channel resources include at least... One resource outside the sidelink channel resource range that corresponds to at least one resource. target As an option, in a specific example, all of the SLHARQ feedback information is included. This 5. Consistent with at least one resource outside the corresponding sidelink channel resource range. At least one target resource is one of the ACK (Backup Feedback) or feedback information. Negative NACK For example, in this example, one PUCCH is linked to resource #1, and PUCCH... Linked to 4 possibilities PSFCH#1,#2,#3, and#4. If possibility #3 of the 4 possibilities PSFCH is a combination. 10 resources #2, and three more that are combined with resource #1, when PUCCH returns the HARQ-ACK bit. 4 PSFCH opportunities, HARQ-ACK bits corresponding to opportunity #3, are all set to ACK information. In another example, one PUCCH is linked to resource #1, and PUCCH is linked. With 4 opportunities, PSFCH #1, #2, #3, and #4. If opportunity #3 of the 4 PSFCH opportunities is a combination of resources #2, And the other three are those that include resource #1, when PUCCH feedback bits HARQ-ACK of 4 occasions. 15PSFCH, all HARQ-ACK bits corresponding to opportunity #3 are set to NACK information. ้ ้ Additionally, optionally, resources in the PSFCH target resource set are linked to... The previously mentioned target bandwidth channels may include at least one out-of-range resource. A minimum of one sidelink channel resource is compatible with the target resource. It may be understood that the resources do not belong to the corresponding sidelink channel resource range. At least 20 target resources are linked to the target upload channel (i.e., at least). One resource outside the sidelink channel resource range that corresponds to at least one resource. The target may be a resource in the PSFCH target resource set that is linked to the auxiliary channel. target As an option, in another specific example, the target sidelink channel resource is... 25 resources within the resource range, including at least one relevant sidelink resource, are the target resource. Additionally, optionally, resources in the PSFCH target resource set are linked to... The previously mentioned upload channel may be at least one resource within the resource range. A side-link channel that is at least one of the target resources, page 35 of 49. It may be understood that the resources do not belong to the corresponding sidelink channel resource range. At least one target resource is linked to the target upload channel (i.e., at least...). One resource outside the sidelink channel resource range that corresponds to at least one resource. The target is not a resource in the PSFCH resource set that is associated with the uplink channel. There are 5 similar goals. Optionally, in terms of methods to define SL feedback information in the form of... The proposed invention is a target sidelink channel resource linked to an uplink channel. Goals are grouped according to target resources; for example, resources linked to each other. Matching targets or SLHARQ-ACK bits may be linked together in sequence according to the resource ID. 10 goals Referring to Figure 7, the presented invention's layout includes 300 communication devices. The Communication300 may be a network device or terminal device, and may include: Module 301, as defined and customized, provides SLHARQ feedback information based on... Requesting a hybrid side-link automatic response based on the PSFCH resource set for feedback channels. This 15 physical location links to target signal channels, by the PSFCH resource suite. The goal is set based on a target time period, where the target time period is the distance between... The signal channel targets PSFCH. As an option, among the 300 communication devices provided in the presented invention form, The specified Module 301 may be customized to: 20. Determine the SLHARQ feedback information based on the first number of time domain bits. Provide the corresponding SLHARQ in sequence for each PSFCH resource in the PSFCH resource set. target As an option, among the 300 communication devices provided in the presented invention form, The first number relates to the PSFCH density. Twenty-five options are available from the 300 communication devices provided in the presented invention format. The value of the first number is equal to the value of the PSFCH density. As an option, among the 300 communication devices provided in the presented invention form, The first number relates to the distance between the target SCS retailer, with the target SCS including page 36 of 49 pages. At least one in the distance between the sub-service provider sidelinks (SLSCS) or the distance between UuSCS Airline Retail Service Interface As an option, among the 300 communication devices provided in the presented invention form, In cases where the target SCS includes SLSCS and UuSCS, the value of the first number is determined based on one. 5 in the following modes: The value of the first number = SLSCS / UuSCS; The value of the first number = the density value of PSFCH. SLSCS / UuSCS / Density value PSFCH?;First number value = Density value PSFCH??SLSCS / UuSCS / Value of density PSFCH?; or the value of the first number = value of Dense PSFCH?SLSCS / UuSCS Ten options are available from the 300 communication devices provided in the presented invention format. The specified Module 301 may be customized to: Define the time domain position corresponding to the target time period; and define, according to the position. Time domain, PSFCH resource set corresponding to the target auxiliary channel. As an option, among the 300 communication devices provided in the presented invention form, The specified Module 15301 may be customized to: Define the target PSFCH resource set based on the corresponding PSFCH resource set. The target uplink channel, by way of the PSFCH target resource set, is a subset of the resource set. PSFCH that is compatible with the target input signal channel. As an option, among the 300 communication devices provided in the presented invention form, 20 sets of PSFCH resources that are compatible with the target upload channel, including the first PSFCH resource, The first PSFCH resource corresponds to a time domain location which includes the PSFCH resource. As an option, among the 300 communication devices provided in the presented invention form, The specified Module 301 may be customized to: Assign the first PSFCH resource in the PSFCH resource set that corresponds to the auxiliary channel. 25 targets are PSFCH resources in the PSFCH Target resource set. As an option, among the 300 communication devices provided in the presented invention form, The PSFCH resource kit that corresponds to the target auxiliary channel includes a second PSFCH resource, The second PSFCH resource corresponds to a time domain position which includes no PSFCH resource on page 37 of 49 pages. As an option, among the 300 communication devices provided in the presented invention form, The specified Module 301 may be customized to: Assign a second PSFCH resource in the PSFCH resource set that corresponds to the auxiliary channel. The target link is a PSFCH resource within the target PSFCH resource set. Five options are available from the 300 communication devices provided in the presented invention format. The specified Module 301 may be customized to: All SLHARQ feedback information must be consistent with the PSFCH resources. This Two of the PSFCH resource sets aim to provide one piece of ACK (Backup Feedback) information or feedback information. Responding negatively to NACK. Ten options are available from the 300 communication devices provided in the presented invention format. The specified Module 301 may be customized to: Determine the SLHARQ feedback information based on the second number of resources. The first sidelink channel corresponding to each PSFCH resource in the PSFCH resource set. The goal, by using the first sidelink channel resources, includes at least one of the channel resources used. 15. Joint link for PSSCH video or control channel resources, PSSCH video link. As an option, among the 300 communication devices provided in the presented invention form, The second number relates to the density of PSFCH. As an option, among the 300 communication devices provided in the presented invention form, A value that is twice the density of PSFCH. Twenty options are available from the 300 communication devices provided in the presented invention format. The second number relates to the distance between target SCS retail service providers, where target SCS includes... At least one of the SLSCS or UuSCS. As an option, among the 300 communication devices provided in the presented invention form, In cases where the target SCS includes SLSCS and UuSCS, the second numeric value is determined based on one of the following: The following 25 modes: This The value of the second number = SLSCS / UuSCS; The value of the second number = the density value of PSFCH. SLSCS / UuSCS / value of density PSFCH?;value of the second number = value of the density of page 38 of 49 pages. PSFCH??SLSCS / UuSCS / Value of density PSFCH?; or value of the second number = value of Dense PSFCH?SLSCS / UuSCS As an option, among the 300 communication devices provided in the presented invention form, The specified Module 301 may be customized to: 5. The first sidelink channel resource is used for the transmission of the sidelink channel. This The first matching bit domain, time domain SLHARQ feedback, matches the side channel resource. Linker is the decoded state or SLHARQ feedback state that corresponds to the sine channel. Linkerk As an option, among the 300 communication devices provided in the presented invention form, The specified 10 modules, 301, may be customized as follows: In the event that the initial preset condition is satisfied, all time domain bits are executed. The SLHARQ feedback corresponding to the first sidelink channel resource is returned as ACK information. The initial pre-configuration conditions include one of the following: the first sidelink channel resource used. ้ ้ ่ For the transmission of broadcast messages; control information on a site link that is compatible with the channel. The first 15 sidelinks indicate that no SLHARQ feedback information was fed; it has been modified by... The network device or pre-configuration indicates that there is no SLHARQ feedback information. Feedback; SLHARQ feedback is disabled; Multicast alternative mode-1 is used for... The HARQ input is returned, and there is no NACK information corresponding to the first sidelink channel resource. Received; and the first sidelink channel resource is a resource for customized permissions, but... 20 is not for use. As an option, among the 300 communication devices provided in the presented invention form, The specified Module 301 may be customized to: If the second preset condition is satisfied, the time domain feedback bit. ้ ้ The SLHARQ corresponding to the first sidelink channel resources is all NACK information. The second set of 25 predefined conditions includes one of the following: SLHARQ feedback information. ้ ่ ้ The first sidelink channel resource was not received; there was no PSFCH that matched the resource. The first sidelink channel is received; no second signal is sent for resource scheduling. The first sidelink channel was detected; the first sidelink channel resource was not used for page 39 of 49. The transmission of the first corresponding sidelink channel is completed; the first sidelink channel resource is seized; the Transmission that is compatible with the initial sidelink channel resources is abandoned, dropped, or terminated; and ้ ้ The first sidelink channel resources are used for the transmission of the first sidelink channel. Consistent, and the third signal transmission consistent with the first sidelink channel indicates... This 5. Perform SLHARQ feedback on the support channel corresponding to the time domain position. In addition to the target time domain position. As an option, among the 300 communication devices provided in the presented invention form, In the case where the third of the sidelink channel resources is the first of the second number of resources. The first sidelink channel was used for the transmission of the same TB transport block or for duplication. This The specified 10PSSCH, Module 301, may be configured to perform one of the following actions: Setting the SLHARQ feedback time domain bit value to correspond to each third of the number. The first sidelink channel resource is the decoded state or SLHARQ feedback state. Consistent with the first sidelink channel corresponding to each third of the resources. The first sidelink channel in sequence; the configuration for the fourth sidelink channel resource. The first 15 links in the third number of sidelink channel resources, the first sidelink, the time domain bit of the SL feedback. The HARQ corresponding to each of the four first sidelink channel resources is the state in which... Decoded or the SLHARQ feedback status corresponding to the first corresponding sidelink channel. With the first sidelink channel resource in order; the settings for the sidelink channel resource. This First, in addition to the fourth number of sidelink channel resources, the first is the third number of resources. The first 20 sidelink channels, each time domain SLHARQ feedback bit corresponding to each. The primary sidelink channel resource is in addition to one of the ACK or NACK information; Setting the SLHARQ feedback time domain bit to correspond to each fourth resource. This The sidelink channel is a decoded state or SLHARQ feedback state that corresponds to... The first sidelink channel corresponding to each fourth of the first sidelink channel resources. 25. The time domain settings of each bit of the SLHARQ feedback are consistent with each resource. This The first sidelink channel, in addition to one of the ACK or NACK information; or Set the time domain bit value of the SLHARQ feedback corresponding to each third of the resource. This The sidelink channel is the decoded or feedback state SLHARQ corresponding to page 40 of 49. The first sidelink channel that corresponds to the resource at the pre-configured location in the third number. This Sidelink channel resources are listed in a gradient. As an option, among the 300 communication devices provided in the presented invention form, The target PSFCH resource set is determined based on at least one of the times the first return feed was made. This 5. Time to feed the second nest. This As an option, among the 300 communication devices provided in the presented invention form, The defined Module 301 may be customized to specify the target PSFCH resource set based on one of the following: ฺ Next: Defining the target PSFCH resource set associated with the target uplink channel. 10. Resource locations where the target upload channel is situated and the first feedback time; configuration. ้ ้ The duration of the feedback time based on the resource location where the target upload channel is located; time. Input the first feedback time, and the second feedback time, and specify, according to the duration of the feedback time. ้ ้ The target PSFCH resource set is associated with the target uplink channel; or its assignment. The duration of the feedback time based on the resource location where the target channel link is situated and the time. 15. Enter the second loopback, and define the target PSFCH resource set linked to the power channel. This Target link based on feedback time. As an option, among the 300 communication devices provided in the presented invention form, In the event that the target PSFCH resource set associated with the target uplink channel is defined accordingly. The duration of the feedback time; each target time within the feedback time period will correspond to... 20. At least one bit time domain feedback SLHARQ As an option, among the 300 communication devices provided in the presented invention form, The target time includes resources in the target PSFCH resource set. As an option, among the 300 communication devices provided in the presented invention form, Each PSFCH resource in the target PSFCH resource set corresponds to the required number of bit domains. 25 Feedback time SLHARQ As an option, among the 300 communication devices provided in the presented invention form, The fifth number includes at least one of the following: the number of PSSCH RB resource blocks;     Consistent with each second sidelink channel resource, with the second sidelink channel resource on page 41 of 49 pages. This includes at least one of the PSSCH resources or PSCCH resources; the number of sub-channels on... Each second sidelink channel resource; the maximum number of compatible PSSCHs for the The transmission or demodulation on each second sidelink channel resource; or the number of PSSCHRBs. Or the number of subchannels in at least one target frequency domain resource, by resource. The 5 target frequency domains include subchannels, resource aggregations, or bandwidth segments (BWP). As an option, among the 300 communication devices provided in the form of the presented inventions, The five-digit number includes at least one of the following: the maximum number of pieces of site control information;     The SCI link or the maximum number of PSCCH resources for transmission, blind spot detection, etc. Detect, or demodulate, each secondary sidelink channel resource, slot, or spacing; 10. The number of SCI pieces or the number of PSCCH resources in at least one frequency domain resource. This The goal, by definition, is to target frequency domain resources, including subchannels, aggregation resources, or sections. Bandwidth (BWP); the maximum number of SCI elements or the maximum number of PSCCH resources in a given instance. This At least one target frequency domain resource; or the number of SCI pieces or the number of resources. This PSCCH on each second sidelink channel resource, slot, or spacing. Fifteen options are available from the 300 communication devices provided in the presented invention format. The fifth number must include at least one of the following: the maximum number of PSFCH resources; transmission; Or the maximum number of PSFCHRBs transmitted. As an option, among the 300 communication devices provided in the presented invention form, The fifth number must include at least one of the following: the number of PSFCHRBs in one that include resources; The 20th highest value in the number of PSFCHRBs that correspond to at least two resources; number of RBs. In a sub-channel that combines resources; the maximum number of RBs corresponding to... At least two sub-channels that share resources; the number of PSFCHRBs in the sub-channel. One that combines resources; the maximum number of PSFCHRBs that correspond to the sub-channel in a given manner. The minimum number of resources included; the number of RBs included in the BWP; or the number of PSFCHRBs. 25 includes BWP (Bio-Words). As an option, among the 300 communication devices provided in the presented invention form, The fifth number includes the number of PSFCHRBs corresponding to each sidelink channel resource. Page 42 of 49. As an option, among the 300 communication devices provided in the presented invention form, SL will correspond to sixth of the number of service providers. As an option, among the 300 communication devices provided in the presented invention form, The number of PSFCHRBs linked to the terminal device is seven. Five options are available from the 300 communication devices provided in the presented invention format. The specified Module 301 may be customized to: Connect the SLHARQ feedback bit that corresponds to the target PSFCH resource set as follows: One of the dimensions of the terminal device, the provider dimension, the time domain dimension, or the frequency domain dimension can be combined. To determine the feedback information for SLHARQ. Ten options are available from the 300 communication devices provided in the presented invention format. A target link channel is connected to at least one target resource, by which the target resource... This includes resource aggregation, subchannels, bandwidth (BWP) segments, or service providers. As an option, among the 300 communication devices provided in the presented invention form, A mode in which the target upload channel is linked to at least one target resource, including: 15. At least one of the following: A target link channel is linked to at least one target resource. ฺ Going up to at least one target resource; a set of resources of the target link channel. With at least one target resource; the form of This The target upload channel is linked to at least one target resource. Target resource; the path of the target upload channel is linked to at least one resource. 20 or more targets in at least one target resource; frequency domain resource of the channel. A target link is linked to at least one target resource. The target; a time domain resource of the uplink channel that is linked to at least one of the following: A target resource is targeted up to at least one target resource; or a frequency hopping pattern of. This The target upload channel is linked to at least one target resource. 25 target resources As an option, among the 300 communication devices provided in the presented invention form, The target sidelink channel is linked to the target sidelink channel resource, by resource page 43 of 49 pages. The target sidelink channel includes at least one of the PSFCH resources, the channel resource used. Share the PSSCH video interface, or the PSSCH video interface control channel resources. As an option, among the 300 communication devices provided in the presented invention form, The target sidelink channel resources include at least one resource outside the resource range. 5 side-link channels that are compatible with at least one target resource. As an option, among the 300 communication devices provided in the presented invention form, All SLHARQ feedback information corresponds to at least one out-of-range resource. This A sidelink channel resource that is compatible with at least one of the target resources is one of... Positive (ACK) or negative (NACK) feedback information. Ten options are available from the 300 communication devices provided in the presented invention format. The target sidelink channel resource is a resource within the sidelink channel resource range. It is consistent with at least one of the target resources. It can be understood that, since the 300 communication devices provided are in the form of inventions, The proposed method can provide a way to define the feedback information that the site link is processed by the device. 15. Communication 300 goes into practice, which involves describing the methods for determining feedback information. The Sidelink system is compatible with 300 communication devices, and further details are not described here. In the presented invention, the PSFCH target resource set is linked to... The target uplink channel can be obtained accurately from the target time period between... The uplink target channel is connected to the sidelink physical channel (PSFCH) to create... 20. Mapping relationship between target upload channel and target PSFCH resource set. For this purpose, the SLHARQ feedback information is consistent with the PSFCH resource set. The target may be mapped to the target uplink channel for reporting in this manner; This Efficient and reliable HARQ feedback on sidelinks is achieved, for the receiving party. The SLHARQ feedback information will be able to accurately learn how data is passed over the sidelink. 25. Success or failure? Therefore, it improves the reliability and resource utilization of transmissions. This Information on SL Figure 8 shows the locking diagram of the terminal device as per the presented invention. The terminal device 400 shown in Figure 8 includes at least one processor 401, and 44 pages of memory out of 49 pages. 402, at least one network interface, 404, and 403 user interface are all components in This Terminal devices 400 are connected to each other using bus system 405. It may be understood that bus system 405 is... Configure the connectivity and communication between components to go beyond data transmission. The B405 system includes additional power bus, control bus, and status signal bus; however, ฺ 5. For the convenience of clear explanations, all types of bus numbers will be labeled as bus number 405 in Figure 8. A 403 user interface may include a display, keyboard, or click device (for example, Mouse, trackball, touchpad or touch screen, and other similar devices. ฺ It might be understood that the 402 memory unit in the presented invention's form might be... Temporary memory or permanent memory, or it may include both temporary and permanent memory. ' ' 10. Permanent memory. Permanent memory may be read-only memory (ROM), or ROM that is set up... This Programmable Read-Only Memory (PROM), Erasable Electronic Read-On Memory (EPROM), and Electrically Erasable Electronic Read-On Memory (EPROM). (EEPROM), flash memory, temporary memory, may also be random access memory (RAM). ฺ The term "external cache" is used as an example, but not a limited description; it pertains to various forms of RAM. It might be used, for example, static random access memory (Static RAM, SRAM), memory. 15. Dynamic Random Access Memory (DRAM), Dynamic random access memory that... Synchronous DRAM (SDRAM), a dynamic random access memory that is synchronous. Double Data Rate SDRAM (DDRSDRAM), random access memory. Enhanced Dynamic Random Access Memory (SDRAM, ESDRAM), dynamic random access memory. Synchronous Link RAM (SLDRAM), and Dynamic Random Access RAM. Direct Rambus RAM (DRRAM) is a system memory unit with 402 GB and its methods are described here. The proposed invention's appearance includes, but is not limited to, these memory units and types. Any other suitable In some implementations, 402 MB of memory stores the following components, including the synthesizer module. ฺ The, or data structure, or subset of, or extension of that: Operating System 4021 25 and application 4022 The 4021 operating system includes various system programs, such as the frame layer and cores. The library layer and drive layer are used to implement a variety of basic services and tasks. This Processed based on hardware, application 4022 includes a variety of applications, for example, page 45 of 49 pages. Media players and browsers are used to implement a variety of application services. Programs for implementing the proposed invention may be included. Application 4022 In the presented invention, the 400 communication devices include additional programs. ฺ 5. A computer stores data in memory (402) and executes it on the processor (401) when execution occurs. ' ' By using processor 401, the computer program will execute the following steps: Defining SLHARQ feedback information based on a hybrid automated request. This Sidelinking based on the PSFCH resource set, feedback channel, physical sidelink target. Linked to the target auxiliary channel, the target PSFCH resource set is defined based on... 10 target time intervals, where the target time interval is the distance between the target upload signal and... PSFCH The method revealed in the form of the presented invention as previously mentioned may... Applied to processor 401, or executed by processor 401. Processor 401 may be... A complete circuit chip capable of processing signals in implementation processes. 15. The methods previously described can be implemented using hardware-integrated logic circuits. In processor 401, or by using software instructions in processor 401 as mentioned. Previously, it might have been a multi-purpose processor, a digital signal processor. Processor (DSP), Application-Specific Integrated Circuit (ASIC). A field-programmable gate array (FPGA), or another device... 20. A programmable logic module, a separate gate or transistor logic device, or component. This The hardware is isolated and can execute or command each method, procedure, and logical block diagram. Revealed in the form of an invention presenting a multi-purpose processor, it may be... A microprocessor, or simply a processor, may be any type of processor or similar entity. ฺ The steps of the procedure revealed by referencing the form of the proposed invention may be implemented. 25. Directly by a hardware decoding processor, or implemented by the integration of hardware. The decoding processor and software module may be stored on storage media. Computers can read completed memory devices such as RAM and flash memory. Read-only memory (ROM), programmable ROM, programmable memory that... Page 46 of 49. It can be erased by electricity, or by a computer-readable media storage device located in... This Memory 402 and processor 401 read the information in memory 402 and execute the steps. This It is completed in the manner previously described, in terms of integration with the hardware of that particular thing, the media. Computer-readable data storage will store computer programs; when there is... 5. The process is carried out by processor 401, performing the steps of the appearance method of the method to determine.     Sidlink's feed information. It may be understood that the appearance described in the presented invention's description may be put into practice. This refers to hardware, software, firmware, middleware, microcode, or a combination of these for the purpose of... Hardware execution: The processor may execute at least one complete application-specific cycle. Application-Specific Integrated Circuits (ASICs) and above, Digital Signal Processors (Digital Signal Processor, DSP), Digital Signal Processing Device (DSPD Device, DSPD), device Programmable Logic Device (PLD), Programmable Array Gate ้ ้ Field-Programmable Gate Array (FPGA), multi-purpose processor. Controllers, microcontrollers, microprocessors, and other electronic units that are 15. Customize to execute the functions described in the presented invention, or a combination of the above. ฺ For software implementation, the technology in the form of the presented invention may... It is implemented by executing functional modules (e.g., processes and functions) in a structured format. The proposed software code of the invention may be stored in memory and executed by... ฺ Memory processing may be performed internally or externally by the processor. 20. In the presentation of the invention, the PSFCH resource set targets are linked to... The target uplink channel can be obtained accurately from the target time period between... The uplink target channel is connected to the sidelink physical channel (PSFCH) to create... The mapping relationship between the target upload channel and the target PSFCH resource set. For this purpose, the SLHARQ feedback information is consistent with the PSFCH resource set. 25 targets may be mapped to target uplink channels for reporting in this manner; This Efficient and reliable HARQ feedback on sidelinks is achieved, for the receiving party. The SLHARQ feedback information can be learned more accurately from the data passed on the site link on page 47 of 49 pages. Whether successful or not, this improves the reliability and resource utilization of transmissions. This Information on SL The Terminal 400 device can perform a variety of processes implemented by the device. Communicate in the format previously described to avoid repetition; details will not be explained further. This Here again, number 5. This Figure 9 is a diagram of the network device's structure, showing the form of the presented invention. The application, which can implement the details of the method for determining site feedback information. The link, and achieving the same result as shown in Figure 9, network devices 500 including processors 501, Transmitting / receiving device 502, memory 503, user interface 504, and bus interface 505. 10. In the form of the presented invention, the network device 500 includes additional programs. The computer stores information in memory (503) and executes it on the processor (501) when instructed. Operated by processor 501, the computer program performs the following steps: This Defining SLHARQ feedback information based on a hybrid automated request. This Sidelinking based on the PSFCH resource set, feedback channel, physical sidelink target. 15. Linked to the target UP link channel, the target PSFCH resource set is defined based on... Target time period, where the target time period is the distance between the target upload signal and... PSFCH In Figure 9, the bus architecture may include any number of buses and bridges connected together, and Specifically, it involves connecting circuits that contain at least one processor or more, which displays... 20 symbols are represented by processor 501 and memory, with memory representing symbol 503. The bus architecture may connect additional circuits of various peripheral devices and controllers. Electrical voltage, power management circuits, and other similar concepts are well-known in invention, and ฺ Therefore, no further explanation is provided; this is the specific information provided: the interface is a receiver interface. ้ ่ A 502 signal may consist of several components, including a transmitter and a receiver. 25 signals, and the arrangement of units for communicating with various other tools on the transmission medium. For different user devices, the 504 user interface may also be an interface capable of connecting. External or internal components of the connected device may include, but are not limited to, push buttons. Display screen, speaker, microphone, joystick, or other similar device. Page 48 of 49. Processor 501 is responsible for managing the bus architecture and general processing. ฺ Memory unit 503 may store data used by the processor when processor 501 is executing. Perform the task. In the presented invention, the PSFCH target resource set is linked to... 5 uplink target channels can be obtained accurately from the target time frame between The uplink target channel is connected to the sidelink physical channel (PSFCH) to create... Mapping relationship between target APL channel and target PSFCH resource set. For this purpose, the SLHARQ feedback information is consistent with the PSFCH resource set. The target may be mapped to the target uplink channel for reporting in this manner; This 10. Efficient and reliable HARQ feedback on a site link is achieved, so that the information recipient can receive it. SLHARQ feedback can accurately learn whether data transmission on a sidelink was successful. Alternatively, this can be used to improve the reliability and resource utilization of data transmission. This On SL Ideally, the presented invention's design should include additional communication equipment (which may be...) 15. Network devices or terminal devices), which include processors, memory, and software. A computer that stores information in memory and processes it on the processor, when an instruction is given. The processor, or computer program, executes the processes involved in determining... The sidelink feedback information is in the form previously described, and can achieve the desired results. The same technique is used to avoid recurrence; details will not be explained again here. This Twenty examples of inventions presented are provided, along with additional data storage media that computers can utilize. ฺ Readable, which stores computer programs, and which are executed by the processor; the program. The computer performs processes involving methods to determine site feedback information. A link that is applicable to the communication devices mentioned earlier (which may be network devices or other devices). The terminal) in the appearance described previously, and capable of achieving the same technical results. 25. Avoid resurgence; details will not be explained further here. The data is stored in a format readable by the computer. ้ ้ ้ Disks include read-only memory (ROM), random access memory (RAM), and magnetic disks. and the optical disc, page 49 of 49 pages. It should be noted that the words "including," "consisting of," and any variables thereof have a purpose.     To cover non-specific inclusions, in the context of processes, methods, and objects, ้ ้ Or a device that includes a series of components, processes, methods, objects, or devices. This includes only the components mentioned above, but also other components not explicitly stated, or may include. 5. Includes the inherent components of a process, method, object, or device without Further limitations: The elements specified by the phrase "which includes one" are not exempted unless they still exist. Other elements that are similar in process, method, object, or tool. Through the previously explained application, individuals with job skills... The inventor can clearly learn that the methods of the previously described forms can be put into practice. 10. By using software in combination with a universal hardware platform, it is certainly necessary that the method of... The visual aspect can also be implemented using hardware, but the former is a better implementation in many cases. Based on this understanding, the technical problem of the proposed invention is of paramount importance, or Supporting components of existing work may be presented in the form of software or other products. Computer software is stored on storage media (e.g., ROM / RAM, magnetic disk, or optical disk). 15. A clud disk) which includes several commands to activate a terminal (which could be a mobile phone, computer, ฺ A server, air conditioner, network equipment, or similar item) to perform the described procedure. Be aware of the characteristics of the invention being presented. The appearance of the presented invention is described above with accompanying drawings. ฺ However, the presented invention is not limited to the specific applications previously mentioned. 20. The specific implementations mentioned earlier are more illustrative than limitations for individuals with the necessary skills. The common level in craftsmanship may result in horses, which come in a variety of forms from the crafts presented without being limited. Abandoning the intent of the proposed invention and the scope of rights claimed by the claims, all are subject to... ้ ้ Protection of the proposed invention. The best way to invent 25. As mentioned in the section on the complete revelation of the invention;

Description

Methods and communication devices for determining sidelink feedback information

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202010066291.X, filed in China on January 20, 2020, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This invention relates to the field of communications, and more particularly to a method and communication device for determining sidelink feedback information. Background Technology

[0004] Currently, New Radio (NR) mobile communication systems (NR systems for short) support sidelink (SL, also known as direct link or pass-through link) transmission. To improve the reliability and resource utilization of data transmission on SL, a Hybrid Automatic Repeat Request (HARQ) feedback mechanism has been introduced into SL technology.

[0005] Specifically, the SL HARQ feedback mechanism can be summarized as follows: After receiving SL data, the SL receiving user sends out SL HARQ feedback information to indicate whether the SL transmission was successful or failed. The SL sending user, upon receiving the SL HARQ feedback information on the SL, can determine whether the previous SL transmission was successful. An SL user can be both a sending and receiving user; that is, the same user can send and receive at different times or in different frequency domains. The SL HARQ feedback information includes affirmative acknowledgment (ACK) and negative acknowledgment (NACK) information.

[0006] In addition, the transmission of SL data packets may take place on the SL between users. Therefore, the control node may not be able to know directly whether the transmission of the SL data packet was successful. 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 was successful.

[0007] Therefore, a scheme is needed to determine the feedback information of the side link in order to achieve efficient and reliable HARQ feedback on the side link, so as to accurately reflect whether the data transmission on the side link is successful.

[0008] Summary of the Invention

[0009] One of the technical problems solved by the embodiments of the present invention is how to achieve efficient and reliable HARQ feedback on the side link.

[0010] In a first aspect, embodiments of the present invention provide a method for determining sidelink feedback information, applied to a communication device, the method comprising:

[0011] The sidelink hybrid automatic repeat request (SL HARQ) feedback information is determined based on the target physical sidelink feedback channel (PSFCH) resource set associated with the target uplink channel, wherein the target PSFCH resource set is determined based on a target time interval, which is the interval between the target uplink channel and the PSFCH.

[0012] In a second aspect, embodiments of the present invention provide a communication device, the communication device comprising:

[0013] The determination module is used to 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, wherein the target PSFCH resource set is determined based on a target time interval, and the target time interval is the interval between the target uplink channel and the PSFCH.

[0014] Thirdly, embodiments of the present invention provide a communication device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method described in the first aspect.

[0015] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the method described in the first aspect.

[0016] In this embodiment of the invention, the target PSFCH resource set associated with the target uplink channel can be accurately derived by using the target time interval between the target uplink channel and the physical sidelink feedback channel (PSFCH). This establishes a mapping relationship between the target uplink channel and the target PSFCH resource set, allowing the SL HARQ feedback information corresponding to the target PSFCH resource set to be mapped onto the target uplink channel for reporting. This achieves efficient and reliable HARQ feedback on the sidelink, enabling the receiver of the SL HARQ feedback information to accurately determine whether data transmission on the sidelink has been successful, thereby improving the reliability and resource utilization of data transmission on the SL. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 is a flowchart illustrating a method for determining sidelink feedback information in an embodiment of the present invention;

[0019] Figure 2 is a flowchart illustrating a method for determining a target PSFCH resource set according to an embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of the correspondence between side-link channel resources in the scenario where Uu SCS and SL SCS are equal in an embodiment of the present invention;

[0021] Figure 4 is a schematic diagram of the correspondence between side link channel resources in the scenario where Uu SCS is greater than SL SCS in an embodiment of the present invention.

[0022] Figure 5 is a schematic diagram of the correspondence of side link channel resources in a scenario where Uu SCS is less than SL SCS in an embodiment of the present invention.

[0023] Figure 6 is a schematic diagram of another side link channel resource correspondence in the scenario where Uu SCS is less than SL SCS in an embodiment of the present invention;

[0024] Figure 7 is a schematic diagram of the structure of a communication device according to an embodiment of the present invention;

[0025] Figure 8 is a schematic diagram of the structure of a terminal device according to an embodiment of the present invention;

[0026] Figure 9 is a schematic diagram of the structure of a network device according to an embodiment of the present invention. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The technical solution of this invention can be applied to various communication systems, such as: Global System of Mobile communication (GSM), Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution-Advanced (LTE-A), NR, etc.

[0029] The user equipment (UE), also known as a mobile terminal or mobile user equipment, can communicate with one or more core networks via a radio access network (RAN). The user equipment can be a terminal device, such as a mobile phone (or "cellular" phone) and a computer with a terminal device, for example, a portable, pocket, handheld, computer-embedded, or vehicle-mounted mobile device. They exchange voice and / or data with the radio access network.

[0030] Network equipment, also known as a base station, can be a base station (BTS) in GSM or CDMA, a base station (NodeB) in WCDMA, an evolved Node B (eNB or e-NodeB) in LTE, or a 5G base station (gNB).

[0031] In this embodiment of the invention, 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. Connection-based multicast refers to a scenario where a connection is established between the multicast UEs, while connectionless multicast refers to a scenario where the multicast UEs are unaware of other UEs in the group and no connection has been established. For multicast, multiple receiving ends support two mechanisms when performing HARQ feedback:

[0032] Mechanism 1 (option 1 NACK-only feedback, or connection-less mechanism): If the data is received but cannot be decrypted, a NACK message is sent; otherwise, no feedback is sent. In this case, if the sending end does not receive a NACK, it is assumed that all receiving ends have successfully received and decrypted the data. This method is suitable for connectionless multicast scenarios.

[0033] Mechanism 2 (option 2 ACK / NACK feedback, or connection-based mechanism): If the data is received but cannot be decoded, or if Sidelink Control Information (SCI) is received but no data is received, a NACK message is sent. If the data is received and correctly decoded, an ACK message is sent. In this case, if the sender receives a NACK from a receiver, or receives neither an ACK nor a NACK, the sender considers the transmission to that receiver to have failed. If it receives an ACK from a receiver, the sender considers the transmission to that receiver to have succeeded. If it receives ACKs from all receivers, the sender considers the corresponding Transport Block (TB) to have been successfully transmitted. This method is suitable for connection-based multicast scenarios.

[0034] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Referring to Figure 1, this embodiment of the invention provides a method for determining sidelink feedback information, executed by a communication device, which can be a network device or a terminal device. The method includes the following steps:

[0036] Step 101: Based on the target physical sidelink feedback channel (PSFCH) resource set associated with the target uplink channel, determine the sidelink hybrid automatic repeat request (SL HARQ) feedback information, wherein the target PSFCH resource set is determined based on the target time interval, which is the interval between the target uplink channel and the target PSFCH.

[0037] Optionally, the aforementioned 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). This target uplink channel can be allocated by the network device.

[0038] Optionally, the target time interval between the target uplink channel and the target physical sidelink feedback channel (PSFCH) includes a slot interval, such as 0 slots to 15 slots, which can be configured or indicated by the network device. There can be one or more such target time intervals. Furthermore, based on this target time interval, 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. This target time interval can be indicated by the network device through Radio Resource Control (RRC) signaling, Downlink Control Information (DCI), or other signaling.

[0039] Optionally, in one example, the starting point of the target time interval can be the starting point of the time domain resource (such as the slot) where the PSFCH is located, and the ending point can be the starting point of the time domain resource (such as the slot) where the target uplink channel is located. It should be noted that the starting point and ending point of the target time interval can also be other cases. For example, the starting point of the target time interval can be the ending point of the time domain resource (such as the slot) where the PSFCH is located, or it can also be the reception time of the PSFCH.

[0040] Optionally, the above target time interval can be interpreted according to the air interface subcarrier spacing (Uu SCS), where the air interface (Uu, where U represents the user to network interface and u represents universal) is used to realize communication between the UE and the evolved universal terrestrial radio access network (EUTRAN). The subcarrier spacing (SCS) can also be called PUCCH SCS or UL SCS. The Uu SCS can be PUCCH SCS or uplink SCS, but is not limited to these.

[0041] Optionally, the aforementioned SL HARQ feedback information includes ACK information or NACK information, and the feedback bit corresponding to the ACK information can be set to "1" and the feedback bit corresponding to the NACK information can be set to "0", or the feedback bit corresponding to the ACK information can be set to "0" and the feedback bit corresponding to the NACK information can be set to "1". Further, the SL HARQ feedback information is transmitted in the form of an SL codebook on the target uplink channel to feed back SL HARQ feedback information corresponding to multiple data on the same resource, such as SL HARQ feedback information corresponding to multiple TBs, thereby reducing feedback complexity. One optional implementation is that the SL codebook can be represented as a bitmap or matrix. Moreover, the method of constructing the SL codebook based on the SL HARQ feedback information determined in this embodiment of the invention can reduce the burden on users in terms of reporting and encoding complexity, reduce codebook overhead, and improve the reliability of SL HARQ feedback information based on uplink transmission.

[0042] Optionally, the target PSFCH resource set may contain one or more resources. Furthermore, this target PSFCH resource set can be a collection of time-domain resources, such as a collection of PSFCH occasions; it can also be resources of other dimensions, such as frequency domain, carrier domain, or terminal device / user domain. In other words, this target PSFCH resource set can be a collection of resources corresponding to multiple dimensions.

[0043] In this embodiment of the invention, the target PSFCH resource set associated with the target uplink channel can be accurately derived by using the target time interval between the target uplink channel and the physical sidelink feedback channel (PSFCH). This establishes a mapping relationship between the target uplink channel and the target PSFCH resource set, allowing the SL HARQ feedback information corresponding to the target PSFCH resource set to be mapped onto the target uplink channel for reporting. This achieves efficient and reliable HARQ feedback on the sidelink, enabling the receiver of the SL HARQ feedback information to accurately determine whether data transmission on the sidelink has been successful, thereby improving the reliability and resource utilization of data transmission on the SL.

[0044] Optionally, referring to Figure 2, in a specific embodiment of the method for determining SL feedback information according to the present invention, the following process steps are also included to determine the target PSFCH resource set associated with the above-mentioned target uplink channel:

[0045] Step 201: Determine the time domain location corresponding to the target time interval.

[0046] Step 203: Determine the PSFCH resource set corresponding to the target uplink channel based on each time domain location.

[0047] It is understandable that the feedback window of the target uplink channel, i.e., the aforementioned time domain position, can be determined based on the target time interval. Then, all PSFCH resources within the aforementioned time domain position can be determined as resources in the PSFCH resource set corresponding to the target uplink channel.

[0048] For example, if Y2 represents the target time interval and slot n represents the time slot where the target uplink channel is located (i.e., the time domain position), then the time domain position corresponding to Y2 includes the slot corresponding to (n-Y2). Furthermore, the PSFCH resources (e.g., PSFCH occasions) in the slot corresponding to (n-Y2) can all belong to the resources in the PSFCH resource set corresponding to the target uplink channel.

[0049] Optionally, the above slot can be a Uu slot; in this case, the Uu slot corresponding to Y2 refers to the slot corresponding to (n-Y2) with SCS of Uu SCS.

[0050] Optionally, the above slot can 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). For example, when Uu SCS < side link subcarrier spacing SL SCS, there may be multiple SL slots corresponding to slot(n-Y2).

[0051] Step 205: Determine the target PSFCH resource set 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.

[0052] It can be understood that after deriving the PSFCH resource set corresponding to the target uplink channel based on the target time interval, 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. Here, the target PSFCH resource set is a subset of the PSFCH resource set corresponding to the target uplink channel; that is, some 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.

[0053] Optionally, in the method for determining SL feedback information in the embodiments of the present invention, based on the different composition of the resources in the PSFCH resource set corresponding to the target uplink channel, the above step 205 can be executed in different ways, including but not limited to the content shown in the following specific embodiments.

[0054] Specific Implementation Example 1

[0055] In this specific embodiment, the PSFCH resource set corresponding to the target uplink channel includes a first PSFCH resource, and the first PSFCH resource corresponds to the time domain location containing the PSFCH resource.

[0056] Furthermore, in this specific embodiment, step 205 can be performed as follows:

[0057] 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.

[0058] It is understandable that the resources in the target PSFCH resource set may only include the first PSFCH resource corresponding to the time domain position of the PSFCH resource set corresponding to the target uplink channel.

[0059] Specific Implementation Example 2

[0060] In this specific embodiment two, the PSFCH resource set corresponding to the target uplink channel includes a second PSFCH resource, and the second PSFCH resource corresponds to the time domain location that does not contain a PSFCH resource.

[0061] Optionally, this second PSFCH resource may be referred to as a virtual PSFCH resource.

[0062] Furthermore, in this specific embodiment two, step 205 can be performed as follows:

[0063] 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.

[0064] It is understandable that the resources in the target PSFCH resource set may also include only the second PSFCH resources corresponding to the time-domain location of the PSFCH resource set corresponding to the target uplink channel that does not contain PSFCH resources.

[0065] Specific Implementation Example 3

[0066] In this specific embodiment three, the PSFCH resource set corresponding to the target uplink channel includes a first PSFCH resource and a second PSFCH resource; wherein, the first PSFCH resource corresponds to the time domain location containing the PSFCH resource, and the second PSFCH resource corresponds to the time domain location not containing the PSFCH resource.

[0067] Furthermore, in this specific embodiment three, step 205 can be performed as follows:

[0068] The first and second PSFCH resources in the PSFCH resource set corresponding to the target uplink channel are determined as PSFCH resources in the target PSFCH resource set.

[0069] It can be understood that the resources in the target PSFCH resource set may include the first PSFCH resource corresponding to the time domain position that actually contains PSFCH resources and the second PSFCH resource corresponding to the time domain position that does not contain PSFCH resources in the PSFCH resource set corresponding to the target uplink channel.

[0070] Based on the above specific embodiments two and three, it can be seen that when there is no PSFCH resource at the time position corresponding to the target time interval, the time position may or may not belong to the target PSFCH resource set.

[0071] Optionally, in the above-described specific embodiments two and three, step 101 can be performed as follows:

[0072] The SL HARQ feedback information corresponding to the second PSFCH resource in the target PSFCH resource set is determined to be either an ACK message or a NACK message.

[0073] It is understandable that for one or more second PSFCH resources corresponding to a time-domain location that does not contain PSFCH resources, the corresponding SL HARQ feedback information can be determined as ACK information or as NACK information. That is, the values ​​of the time-domain bits of the SL HARQ feedback corresponding to each second PSFCH resource can be set to the values ​​corresponding to ACK information (such as "1") or to the values ​​corresponding to NACK information (such as "0").

[0074] Optionally, in the method for determining SL feedback information in this embodiment of the invention, step 101 above can be performed as follows:

[0075] The SL HARQ feedback information is determined based on the first number of SL HARQ feedback time-domain bits corresponding to each PSFCH resource in the target PSFCH resource set.

[0076] It can be understood that the SL HARQ feedback information corresponding to the aforementioned target PSFCH resource set can be composed of the values ​​of the first number of SL HARQ feedback time-domain bits corresponding to each PSFCH resource in the target PSFCH resource set.

[0077] Optionally, the aforementioned first quantity can be determined based on different parameters, which 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. Further, specific embodiments of the method for determining the aforementioned first quantity include, but are not limited to, the following:

[0078] Specific Implementation Example 1

[0079] In this specific embodiment, the first quantity is related to the PSFCH density.

[0080] The PSFCH density can also be referred to as the PSFCH period. This PSFCH density can be interpreted according to SL SCS, but is not limited to SL SCS. It refers to the occurrence of one PSFCH resource at every interval of the PSFCH density value in the time domain. Optionally, the PSFCH density value can be 1, 2, or 4. For example, with N=4, one implementation would have PSFCH resources every 4 sidelink slots. It should be noted that if N corresponds to a sidelink slot, the timing duration corresponding to N sidelink slots may be greater than or equal to the timing duration corresponding to N physical slots. Thus, some time domain locations contain PSFCH resources and other sidelink channel resources, such as at least one of the Physical Sidelink Shared Channel (PSSCH) resources and the Physical Sidelink Control Channel (PSCCH) resources; while some time domain locations only contain PSSCH resources and / or PSCCH resources without PSFCH resources.

[0081] Optionally, the value of the first quantity mentioned above is equal to the value of the PSFCH density.

[0082] Specific Implementation Example 2

[0083] In this specific embodiment two, the first quantity mentioned above is related to the target subcarrier spacing (SCS).

[0084] Optionally, the value of the first quantity mentioned above is equal to the value of the PSFCH density.

[0085] Optionally, if the target SCS includes both SL SCS and Uu SCS, the value of the first quantity is determined based on one of the following methods:

[0086] (1) The value of the first quantity = SL SCS / Uu SCS = 2 μSL-μUuThe value of μ is related to the corresponding values ​​of SL SCS and Uu SCS. For example, for μ corresponding to SL SCS, if SL SCS = 30 kHz, then μ = 1, that is, SL SCS = 15 × 2. μ =15×2 1 =30kHz; similarly, if SL SCS = 60kHz, then μ = 2, that is, SL SCS = 15 × 2 μ =15×2 2 =60kHz. The μ corresponding to Uu SCS is similar to the μ corresponding to SL SCS, and will not be elaborated further.

[0087] (2) Among them, the operator It indicates rounding up, and can also be represented as ceiling.

[0088] (3) Among them, the operator This indicates rounding down, and can also be represented as floor.

[0089] (4) The value of the first quantity = the value of PSFCH density × SL SCS / Uu SCS = the value of PSFCH density × 2 μSL-μUu .

[0090] It should be noted that any of the methods for determining the value of the first quantity in this specific embodiment two can be applied to at least one of the following scenarios: (1) SL SCS = Uu SCS; (2) SL SCS < Uu SCS; (3) SL SCS > Uu SCS. For example:

[0091] Specific Example 1

[0092] In this specific example, Uu SCS = SL SCS = 30KHz, see Figure 3:

[0093] (1) Assuming the target time interval {Y2} = {1, 2, 4, 8}, and K = 2 and PFSCH density N = 4, since there is a PSFCH occasion (i.e., PSFCH resource) at position Y2 = {4, 8}, the time-domain position corresponding to n-{4, 8} is the feedback window of PUCCH (i.e., the target uplink channel). In other words, the PSFCH occasions in time-domain positions slot (n-4) and slot (n-8) belong to the PSFCH occasions associated with this PUCCH, and each corresponds to N bits of SL HARQ feedback information. The user provides 2 × N = 8 bits of SL HARQ feedback information. Here, slot n is the time-domain position where the PUCCH is located.

[0094] (2) Assuming the target time interval {Y2} = {1, 2, 4, 8}, and K = 2 and PFSCH density N = 4, then the time-domain position corresponding to n - {1, 2, 4, 8} is the feedback window of this PUCCH. In other words, the PSFCH occasions in time-domain positions slots (n-1), (n-2), (n-4), and (n-8) belong to the PSFCH occasions associated with this PUCCH, and each corresponds to N bits of SL HARQ feedback information. The user provides 4 × N = 16 bits of SL HARQ feedback information, where n-1 and n-2 each correspond to 4 bits of NACK information. The 4 bits of SL HARQ feedback information corresponding to n-4 and n-8 are determined by the user based on the PSFCH reception status on n-4 and n-8. Here, slot n is the time-domain position of the PUCCH.

[0095] Specific Example 2

[0096] In this specific example two, Uu SCS > SL SCS, for example, Uu SCS = 30KHz, SL SCS = 15KHz, see Figure 4:

[0097] (1) Assuming the target time interval {Y2} = {1, 2, 4, 8}, and K = 2 and PFSCH density N = 4, since there is a PSFCH occasion (i.e., PSFCH resource) at position Y2 = {8}, the time-domain position corresponding to n-{8} is the feedback window of PUCCH (i.e., the target uplink channel). In other words, the PSFCH occasion in the time-domain position slot (n-8) belongs to the PSFCH occasion associated with this PUCCH, and corresponds to N bits of SL HARQ feedback information. The user feeds back 1 × N = 4 bits of SL HARQ feedback information. Here, slot n is the time-domain position where the PUCCH is located.

[0098] (2) Assuming the target time interval {Y2} = {1, 2, 4, 8}, and K = 2 and PFSCH density N = 4, then the time-domain position corresponding to n-{1, 2, 4, 8} is the feedback window of this PUCCH. In other words, the PSFCH occasions in time-domain positions slots (n-1), (n-2), (n-4), and (n-8) belong to the PSFCH occasions associated with this PUCCH, and each corresponds to N bits of SL HARQ feedback information. The user provides 4 × N = 16 bits of SL HARQ feedback information, where n-1, n-2, and n-4 each correspond to 4 bits of NACK information. The 4 bits of SL HARQ feedback information corresponding to n-8 are determined by the user based on the PSFCH reception status on n-8. Here, slot n is the time-domain position of the PUCCH.

[0099] Specific Example 3

[0100] In this specific example three, Uu SCS < SL SCS, for example, Uu SCS = 15KHz, SL SCS = 30KHz, see Figure 5:

[0101] (1) Assuming the target time interval {Y2} = {2}, K = 2, and PFSCH density N = 4, since the Uu slot corresponding to n-2 contains 2 SL slots, and SL slot 4 contains PFSCH while SL slot 5 does not; then the Uu slot corresponding to n-2 contains 2 SL slots. The user provides 1×N = 4 bits of SL HARQ feedback information, which is determined by the user based on the PSFCH reception status on SL slot 4. Here, slot n represents the time-domain location of the PUCCH.

[0102] (2) First quantity N1 = PSFCH density value × SL SCS / Uu SCS = N × 2 μSL-μUu Assuming the target time interval {Y2} = {2}, K = 2, and the PFSCH density N = 4, since there are 2 SL slots within the Uu slot corresponding to n-2, and SLslot4 contains PFSCH while SL slot 5 does not; then the N×2 corresponding to n-2 μSL-μUu=4 × 2 = 8 bits of SL HARQ feedback information, where the two SL slots each correspond to 4 bits of SL HARQ feedback information. The 4 bits of SL HARQ feedback information corresponding to slot 4 are determined by the user based on the PSFCH reception status on SL slot 4. Slot 5 corresponds to 4 bits of NACK information. Here, slot n is the time domain position of the PUCCH.

[0103] (3) The first quantity N1 = the value of the PSFCH density N. Assume the target time interval {Y2} = {2}, and K = 2 and the PSFCH density N = 4. Since there are 2 SL slots in the Uu slot corresponding to n-2, and SL slot 4 contains PSFCH while SL slot 5 does not contain PSFCH; then n-2 corresponds to N = 4 bits of SL HARQ feedback information, where the 2 SL slots each correspond to 4 bits of SL HARQ feedback information, which is determined by the user based on the PSFCH reception status on SL slot 4. Here, slot n is the time domain position of the PUCCH.

[0104] Specific Example 4

[0105] In this specific example four, Uu SCS < SL SCS, for example, Uu SCS = 15KHz, SL SCS = 60KHz, see Figure 6:

[0106] (1) First quantity N1 = SL SCS / Uu SCS = 2 μSL-μUu Assuming the target time interval {Y2} = {1, 2}, and K = 2 and PFSCH density N = 2, since there are 4 SL slots within the Uu slot corresponding to n-2, and SL slots 8 and 10 contain PFSCH while SL slots 9 and 11 do not; then the 2 SL slots corresponding to SL slots 8 and 10 within n-2... μSL-μUu =4 / 1=4 bits of SL HARQ feedback information. SL slots 8 and 10 each correspond to 2 bits of SL HARQ feedback information, the specific amount to be determined by the user based on the PSFCH reception status in SL slots 8 and 10. Slot n represents the time-domain location of the PUCCH.

[0107] (2) Assuming the target time interval {Y2} = {1, 2}, K = 2, and PFSCH density N = 2, since there are 4 SL slots within the Uu slot corresponding to n-2, and SL slots 8 and 10 contain PFSCH while SL slots 9 and 11 do not; then the SL slots 8 and 10 within n-2 corresponding to... SL HARQ feedback information. SL slots 8 and 10 each correspond to 2 bits of SL HARQ feedback information, the specific amount to be determined by the user based on the PSFCH reception status in SL slots 8 and 10. Slot n represents the time-domain location of the PUCCH.

[0108] (3) First quantity N1 = PSFCH density value × SL SCS / Uu SCS = N × 2 μSL-μUu Assuming the target time interval {Y2} = {1, 2}, and K = 2 and the PFSCH density N = 2, since there are 4 SL slots within the Uu slot corresponding to n-2, and SL slots 8 and 10 contain PFSCH while SL slots 9 and 11 do not; then the N×2 corresponding to n-2 μSL-μUu =2 × 4 = 8 bits of SL HARQ feedback information, where each SL slot corresponds to 2 bits of SL HARQ feedback information. Specifically, SL slots 8 and 10 each correspond to 2 bits of SL HARQ feedback information, which is determined by the user based on the PSFCH reception status on SL slots 8 and 10; SL slots 2 and 4 each correspond to 2 bits of NACK information.

[0109] The parameter K in any of the above specific examples is explained as follows: The PSFCH density is N, meaning the PSFCH occasion occurs once every N slots, where N = 1, 2, or 4. Optionally, in one implementation, there are N possible PSSCH occasions associated with each PSFCH period, and the time of the PSSCH occasion associated with slot m is no earlier than m + K, where K = 2 or 3, and slot m is the temporal location of the PSFCH occasion.

[0110] Optionally, in the method for determining SL feedback information in this embodiment of the invention, in addition to determining the value of the first quantity using at least one of the above methods, a method of pre-setting a fixed value for the first quantity can also be used. Of course, other methods can also be used, including but not limited to the above.

[0111] Optionally, in the method for determining SL feedback information in this embodiment of the invention, step 101 above can be performed as follows:

[0112] Based on the second number of first sidelink channel resources corresponding to each PSFCH resource in the target PSFCH resource set, the SL HARQ feedback information is determined; wherein, the first sidelink channel resources include at least one of the physical sidelink shared channel PSSCH resources and the physical sidelink control channel PSCCH resources.

[0113] It is understood that the SL HARQ feedback information corresponding to the aforementioned target PSFCH resource set can 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 sidelink channel resources include at least one of PSSCH resources and PSCCH resources.

[0114] Optionally, based on the second number of first sidelink channel resources corresponding to each PSFCH resource in the target PSFCH resource set, the number of SL HARQ feedback time-domain bits corresponding to each PSFCH resource in the target PSFCH resource set can be derived, and then the SL HARQ feedback information can be determined based on the value of each SL HARQ feedback time-domain bit corresponding to each PSFCH resource in the target PSFCH resource set.

[0115] Optionally, the aforementioned second quantity can be determined based on different parameters, which may include at least one of PSFCH density and target subcarrier spacing (SCS); wherein the target SCS includes at least one of sidelink subcarrier SL SCS and air interface subcarrier Uu SCS. Further, specific embodiments of the method for determining the aforementioned second quantity include, but are not limited to, the following:

[0116] Specific Implementation Example 1

[0117] In this specific embodiment, the second quantity is related to the PSFCH density.

[0118] The PSFCH density can also be referred to as the PSFCH period. According to the SL SCS interpretation, the PSFCH density refers to the occurrence of one PSFCH resource at every interval of the specified PSFCH density value in the time domain. Optionally, the PSFCH density value can be 1, 2, or 4. For example, with N=4, one implementation would have PSFCH resources every 4 sidelink slots. It should be noted that if N corresponds to a sidelink slot, the timing duration corresponding to N sidelink slots may be greater than or equal to the timing duration corresponding to N physical slots. Thus, some time domain locations contain PSFCH resources and other sidelink channel resources, such as at least one of PSSCH and PSCCH resources; while some time domain locations only contain PSSCH and / or PSCCH resources without PSFCH resources.

[0119] Optionally, the value of the second quantity mentioned above is equal to the value of the PSFCH density.

[0120] Specific Implementation Example 2

[0121] In this specific embodiment two, the aforementioned second quantity is related to the target subcarrier spacing (SCS).

[0122] Optionally, the value of the second quantity mentioned above is equal to the value of the PSFCH density.

[0123] Optionally, if the target SCS includes both SL SCS and Uu SCS, the value of the second quantity is determined based on one of the following methods:

[0124] (1) The value of the second quantity = SL SCS / Uu SCS = 2 μSL-μUu .

[0125] (2) Among them, the operator It indicates rounding up, and can also be represented as ceiling.

[0126] (3) Among them, the operator This indicates rounding down, and can also be represented as floor.

[0127] (4) The value of the second quantity = the value of PSFCH density × SL SCS / Uu SCS = the value of PSFCH density × 2 μSL-μUu .

[0128] It should be noted that any of the methods for determining the value of the first quantity in this specific embodiment two can be applied to at least one of the following scenarios: (1) SL SCS = Uu SCS; (2) SL SCS < Uu SCS; (3) SL SCS > Uu SCS. For example:

[0129] Specific Example 1

[0130] In this specific example, Uu SCS = SL SCS = 30KHz, see Figure 3:

[0131] (1) Assuming the target time interval {Y2} = {1, 2, 4, 8}, and K = 2 and PFSCH density N = 4, since there is a PSFCH occasion (i.e., PSFCH resource) at position Y2 = {4, 8}, the time-domain position corresponding to n-{4, 8} is the feedback window of PUCCH (i.e., the target uplink channel). In other words, the PSFCH occasions in time-domain positions slot (n-4) and slot (n-8) belong to the PSFCH occasions associated with this PUCCH, and each corresponds to N bits of SL HARQ feedback information. The user provides 2 × N = 8 bits of SL HARQ feedback information. Here, slot n is the time-domain position where the PUCCH is located.

[0132] (2) Assuming the target time interval {Y2} = {1, 2, 4, 8}, and K = 2 and PFSCH density N = 4, then the time-domain position corresponding to n-{1, 2, 4, 8} is the feedback window of this PUCCH. In other words, the PSFCH occasions in time-domain positions slots (n-1), (n-2), (n-4), and (n-8) belong to the PSFCH occasions associated with this PUCCH, and each corresponds to N bits of SL HARQ feedback information. The user provides 4 × N = 16 bits of SL HARQ feedback information, where n-1 and n-2 each correspond to 4 bits of NACK information. The 4 bits of SL HARQ feedback information corresponding to n-4 and n-8 are determined by the user based on the PSFCH reception status on n-4 and n-8. Here, slot n is the time-domain position of the PUCCH.

[0133] Specific Example 2

[0134] In this specific example two, Uu SCS > SL SCS, for example, Uu SCS = 30KHz, SL SCS = 15KHz, see Figure 4:

[0135] (1) Assuming the target time interval {Y2} = {1, 2, 4, 8}, and K = 2 and PFSCH density N = 4, since there is a PFSCH occasion (i.e., PFSCH resource) at position Y2 = {8}, the time-domain position corresponding to n-{8} is the feedback window of PUCCH (i.e., the target uplink channel). In other words, the PFSCH occasion in the time-domain position slot (n-8) belongs to the PFSCH occasion associated with this PUCCH, and corresponds to N bits of SL HARQ feedback information. The user feeds back 1 × N = 4 bits of SL HARQ feedback information. Here, slot n is the time-domain position where the PUCCH is located.

[0136] (2) Assuming the target time interval {Y2} = {1, 2, 4, 8}, and K = 2 and PFSCH density N = 4, then the time-domain position corresponding to n-{1, 2, 4, 8} is the feedback window of this PUCCH. In other words, the PSFCH occasions in time-domain positions slots (n-1), (n-2), (n-4), and (n-8) belong to the PSFCH occasions associated with this PUCCH, and each corresponds to N bits of SL HARQ feedback information. The user provides 4 × N = 16 bits of SL HARQ feedback information, where n-1, n-2, and n-4 each correspond to 4 bits of NACK information. The 4 bits of SL HARQ feedback information corresponding to n-8 are determined by the user based on the PSFCH reception status on n-8. Here, slot n is the time-domain position of the PUCCH.

[0137] Specific Example 3

[0138] In this specific example three, Uu SCS < SL SCS, for example, Uu SCS = 15KHz, SL SCS = 30KHz, see Figure 5:

[0139] (1) Assuming the target time interval {Y2} = {2}, K = 2, and PFSCH density N = 4, since the Uu slot corresponding to n-2 contains 2 SL slots, and SL slot 4 contains PFSCH while SL slot 5 does not; then the Uu slot corresponding to n-2 contains 2 SL slots. The user provides 1×N = 4 bits of SL HARQ feedback information, which is determined by the user based on the PSFCH reception status on SL slot 4. Here, slot n represents the time-domain location of the PUCCH.

[0140] (2) Second quantity N2 = PSFCH density value × SL SCS / Uu SCS = N × 2 μSL-μUu Assuming the target time interval {Y2} = {2}, K = 2, and the PFSCH density N = 4, since there are 2 SL slots within the Uu slot corresponding to n-2, and SL slot 4 contains PFSCH while SL slot 5 does not; then the N×2 corresponding to n-2 μSL-μUu =4 × 2 = 8 bits of SL HARQ feedback information, where each of the two SL slots corresponds to 4 bits of SL HARQ feedback information. The 4 bits of SL HARQ feedback information corresponding to slot 4 is determined by the user based on the PSFCH reception status on SL slot 4, and slot 5 corresponds to 4 bits of NACK information. Here, slot n is the time domain position of the PUCCH.

[0141] (3) The second quantity N2 = the value of the PSFCH density N. Assume the target time interval {Y2} = {2}, K = 2, and the PSFCH density N = 4. Since there are 2 SL slots within the Uu slot corresponding to n-2, and SL slot 4 contains PSFCH while SL slot 5 does not; then n-2 corresponds to N = 4 bits of SL HARQ feedback information. The two SL slots each correspond to 4 bits of SL HARQ feedback information, which is determined by the user based on the PSFCH reception status on SL slot 4. Here, slot n is the time-domain location of the PUCCH.

[0142] Specific Example 4

[0143] In this specific example four, Uu SCS < SL SCS, for example, Uu SCS = 15KHz, SL SCS = 60KHz, see Figure 6:

[0144] (1) The second quantity N2 = SL SCS / Uu SCS = 2 μSL-μUu Assuming the target time interval {Y2} = {1, 2}, and K = 2 and PFSCH density N = 2, since there are 4 SL slots within the Uu slot corresponding to n-2, and SL slots 8 and 10 contain PFSCH while SL slots 9 and 11 do not; then the 2 corresponding to SL slots 8 and 10 within n-2 μSL-μUu=4 / 1=4 bits of SL HARQ feedback information. SL slots 8 and 10 each correspond to 2 bits of SL HARQ feedback information, the specific amount to be determined by the user based on the PSFCH reception status in SL slots 8 and 10. Slot n represents the time-domain location of the PUCCH.

[0145] (2) Assuming the target time interval {Y2} = {1, 2}, K = 2, and PFSCH density N = 2, since there are 4 SL slots within the Uu slot corresponding to n-2, and SL slots 8 and 10 contain PFSCH while SL slots 9 and 11 do not; then the SL slots 8 and 10 within n-2 corresponding to...

[0146] SL HARQ feedback information. SL slots 8 and 10 each correspond to 2 bits of SL HARQ feedback information, the specific amount to be determined by the user based on the PSFCH reception status in SL slots 8 and 10. Slot n represents the time-domain location of the PUCCH.

[0147] (3) The second quantity N2 = the value of PSFCH density × SL SCS / UuS CS = N × 2 μSL-μUu Assuming the target time interval {Y2} = {1, 2}, and K = 2 and the PFSCH density N = 2, since there are 4 SL slots within the Uu slot corresponding to n-2, and SL slots 8 and 10 contain PFSCH while SL slots 9 and 11 do not; then the N×2 corresponding to n-2 μSL-μUu =2 × 4 = 8 bits of SL HARQ feedback information, where each SL slot corresponds to 2 bits of SL HARQ feedback information. Specifically, SL slots 8 and 10 each correspond to 2 bits of SL HARQ feedback information, which is determined by the user based on the PSFCH reception status on SL slots 8 and 10; SL slots 2 and 4 each correspond to 2 bits of NACK information.

[0148] The parameter K in any of the above specific examples is explained as follows: The PSFCH density is N, meaning the PSFCH occasion occurs once every N slots, where N = 1, 2, or 4. Optionally, in one implementation, there are N possible PSSCH occasions associated with each PSFCH period, and the time of the PSSCH occasion associated with slot m is no earlier than m + K, where K = 2 or 3, and slot m is the temporal location of the PSFCH occasion.

[0149] Optionally, in the method for determining SL feedback information in this embodiment of the invention, in addition to determining the value of the second quantity using at least one of the above methods, a method of pre-setting a fixed value for the second quantity can also be used. Of course, other methods can also be used, including but not limited to the above.

[0150] Optionally, in the method for determining SL feedback information in the embodiments of the present invention, the step of determining SL HARQ feedback information based on the second number of first sidelink channel resources corresponding to each PSFCH resource in the target PSFCH resource set can be implemented based on different schemes, including but not limited to the contents described in the following specific embodiments.

[0151] Specific Implementation Example 1

[0152] In this specific embodiment, the step of determining the SL HARQ feedback information based on the second number of first sidelink channel resources corresponding to each PSFCH resource in the target PSFCH resource set can be performed as follows:

[0153] If the first sidelink channel resource is used to transmit the corresponding first sidelink channel, then the SL HARQ feedback time-domain bit corresponding to the first sidelink channel resource is set to the decoding state or SL HARQ feedback state corresponding to the first sidelink channel.

[0154] Optionally, the target uplink channel is instructed to transmit SL HARQ feedback information via the first signaling corresponding to the first sidelink channel. The first signaling may include control signaling (such as DCI or SCI) or configuration signaling.

[0155] The decoding states mentioned above include successful decoding or decoding failure, and the SL HARQ feedback states include ACK and NACK states. When decoding is successful or in the ACK state, the value of the SL HARQ feedback time-domain bit corresponding to the first sidelink channel resource can be set to "1"; when decoding fails or in the NACK state, the value of the SL HARQ feedback time-domain bit corresponding to the first sidelink channel resource can be set to "0". Optionally, there can be one or more SL HARQ feedback time-domain bits. Further, if it is discontinuous transmission (DTX), the value of the SL HARQ feedback time-domain bit corresponding to the first sidelink channel resource is set to DTX, NACK, or ACK.

[0156] Specific Implementation Example 2

[0157] In this specific embodiment two, the step of determining the SL HARQ feedback information based on the second number of first sidelink channel resources corresponding to each PSFCH resource in the target PSFCH resource set can be performed as follows:

[0158] Under the condition that the first preset condition is met, all SL HARQ feedback time-domain bits corresponding to the first sidelink channel resource are set to ACK information.

[0159] The first preset condition includes one of the following:

[0160] (1) The first sidelink channel resource is used to transmit broadcast messages.

[0161] (2) The side link control information SCI corresponding to the first side link channel indicates no feedback of SL HARQ feedback information; wherein, the first side link channel is transmitted through the corresponding first side link channel resource, and the first side link channel includes at least one of PSSCH and PSCCH.

[0162] (3) Pre-configured or network device configuration does not provide SL HARQ feedback information.

[0163] (4) Disable SL HARQ feedback; optionally, disable SL HARQ feedback via higher-level signaling.

[0164] (5) HARQ feedback is performed using multicast option-1 and no NACK information corresponding to the first side link channel resource is received; optionally, multicast option-1 is pre-configured or network device is configured or indicated.

[0165] (6) The first sidelink channel resource is a resource that is configured and authorized but not used.

[0166] Specific Implementation Example 3

[0167] In this specific embodiment three, the step of determining the SL HARQ feedback information based on the second number of first sidelink channel resources corresponding to each PSFCH resource in the target PSFCH resource set can be performed as follows:

[0168] Under the condition that the second preset condition is met, all SL HARQ feedback time-domain bits corresponding to the first sidelink channel resource are set to NACK information.

[0169] The second preset condition includes one of the following:

[0170] (1) No SL HARQ feedback information was received for the first side link channel resource.

[0171] (2) The PSFCH corresponding to the first sidelink channel resource was not received.

[0172] (3) No second signaling for scheduling the first sidelink channel resources was detected; the second signaling may include control signaling (such as DCI or SCI).

[0173] (4) The first side link channel resources were not used to transmit the corresponding first side link channel.

[0174] (5) The first side link channel resource was preempted.

[0175] (6) The transmission corresponding to the first side link channel resource is dropped, abandoned, or canceled.

[0176] (7) The first sidelink channel resource is used to transmit the corresponding first sidelink channel, and the third signaling corresponding to the first sidelink channel instructs the uplink channel corresponding to other time domain locations besides the target time domain location to perform SL HARQ feedback. That is, the uplink channel corresponding to the other time domain location is different from the target uplink channel. Among them, the third signaling includes control signaling (such as DCI or SCI) or higher-layer signaling, and the higher-layer signaling includes at least one of RRC signaling, Packet Data Convergence Protocol (PDCP) signaling, Service Data Adaptation Protocol (SDAP) signaling, Radio Link Control (RLC) signaling, and Medium Access Control (MAC) signaling.

[0177] Specific Implementation Example 4

[0178] In this specific embodiment four, if a third number of the aforementioned second number of first sidelink channel resources are used to transmit the same transport block (TB) or to repeatedly transmit PSSCH, then the step of determining the SL HARQ feedback information based on the second number of first sidelink channel resources corresponding to each PSFCH resource in the target PSFCH resource set can be performed as one of the following:

[0179] (1) Set the time-domain bits of each SL HARQ feedback corresponding to the first sidelink channel resources of the third quantity mentioned above to the decoding state or SL HARQ feedback state of the first sidelink channel corresponding to each first sidelink channel resource.

[0180] (2) For the fourth number of first sidelink channel resources in the third number of first sidelink resources mentioned above, set the SL HARQ feedback time domain bits corresponding to the fourth number of first sidelink channel resources to the decoding state or SL HARQ feedback state corresponding to the first sidelink channel corresponding to each first sidelink channel resource.

[0181] (3) For the first side link channel resources other than the first side link channel resources of the third quantity mentioned above, set each SL HARQ feedback time domain bit corresponding to the other first side link channel resources to one of ACK information and NACK information.

[0182] (4) Set the SL HARQ feedback time-domain bits corresponding to the first side-link channel resources of the fourth quantity to the decoding state or SL HARQ feedback state of the first side-link channel corresponding to each first side-link channel resource, and set the SL HARQ feedback time-domain bits corresponding to the other first side-link channel resources to one of ACK information and NACK information.

[0183] Optionally, the fourth quantity in (2) to (4) above can be 1.

[0184] Optionally, the fourth number of first sidelink channel resources in (2) to (4) above refers to one or more first sidelink channel resources whose time domain position is ranked at a preset position (e.g., the last position) in the third number of first sidelink channel resources above.

[0185] (5) Set the SL HARQ feedback time-domain bits corresponding to each of the third number of first sidelink channel resources to the decoding state or SL HARQ feedback state of the first sidelink channel corresponding to the resource located at the preset position in the third number of first sidelink channel resources.

[0186] Optionally, the aforementioned preset position can be one or more positions that are last in the time domain among the aforementioned third number of first sidelink channel resources.

[0187] For example, the SL HARQ feedback time-domain bit of each of the third number of first sidelink channel resources is set to the decoding state or SL HARQ feedback state of the last first sidelink channel resource in the third number of first sidelink channel resources.

[0188] Optionally, in another specific embodiment of the method for determining SL feedback information according to the present invention, the target PSFCH resource set associated with the target uplink channel is determined based on at least one of a first feedback time and a second feedback time.

[0189] In other words, in the method for determining SL feedback information in this embodiment of the invention, in addition to the method for determining the target PSFCH resource set corresponding to FIG2, the target PSFCH resource set can also be determined based on at least one of the first feedback time and the second feedback time. Furthermore, SL HARQ feedback information can be determined based on the target PSFCH resource set.

[0190] Optionally, the first feedback time and the second feedback time mentioned above can be determined based on at least one of the following methods: control node configuration; pre-configuration; network device indication; protocol definition; indication from other terminal devices. That is, different parameters can be determined using the same or different methods.

[0191] Optionally, in the method for determining SL feedback information in this embodiment of the invention, the process of determining the target PSFCH resource set based on at least one of the first feedback time and the second feedback time can be executed in the following different specific embodiments:

[0192] Specific Implementation Example 1

[0193] In this specific embodiment, the target PSFCH resource set associated with the target uplink channel is determined based on the resource location of the target uplink channel and the first feedback time.

[0194] For example, if the resource location of the target uplink channel is slot n and the first feedback time is T, the SL HARQ feedback information that needs to be fed back can be determined based on the slot corresponding to nT.

[0195] Specific Implementation Example 2

[0196] In this specific embodiment two, a feedback time period is determined based on 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 based on the feedback time period.

[0197] Optionally, in this specific embodiment two, each target time within the above-mentioned feedback time period corresponds to at least one SL HARQ feedback time-domain bit.

[0198] For example, if the resource location of the target uplink channel is slot n, the first feedback time is T, and the second feedback time is L, the SL HARQ feedback information that needs to be fed back is determined based on a feedback time period no later than nT; wherein, each slot corresponds to a certain number of SL HARQ feedback time-domain bits within this feedback time period. Specifically, if T=1 and L=6, then each slot corresponds to a certain number of bits in the feedback time period from n-6 to n-1.

[0199] Optionally, in the method for determining SL feedback information in this embodiment of the invention, the target time period includes resources in the target PSFCH resource set.

[0200] Continuing with the previous example, each slot containing a PSFCH occasion (i.e., a resource in the target PSFCH resource set) within the aforementioned feedback time period corresponds to a certain number of SL HARQ feedback time-domain bits. Specifically, if T=1 and L=6, then at least one slot in the feedback time period from n-6 to n-1 contains a PSFCH occasion and corresponds to a certain number of bits.

[0201] Optionally, the time-domain location corresponding to the target time interval can be located within the feedback time period. Continuing the previous example, if T=1, L=6, and the set of values ​​for the target time interval Y2 is {1,4,6,8}, then the slot (time-domain location) corresponding to Y2={4,6} is within the feedback time period between n-6 and n-1. Furthermore, its corresponding PSFCH occasion belongs to the target PSFCH resource set mentioned above.

[0202] Specific Implementation Example 3

[0203] In this specific embodiment three, a feedback time period is determined based on the resource location of the target uplink channel and the second feedback time, and a target PSFCH resource set associated with the target uplink channel is determined based on the feedback time period.

[0204] Optionally, in this specific embodiment three, each target time within the aforementioned feedback time period corresponds to at least one SL HARQ feedback time-domain bit. For example, each slot containing a PSFCH occasion (i.e., a resource in the target PSFCH resource set) within the aforementioned feedback time period corresponds to a certain number of SL HARQ feedback time-domain bits.

[0205] Optionally, in the method for determining SL feedback information in this embodiment of the invention, the target time period includes resources in the target PSFCH resource set.

[0206] As can be seen from the above, the feedback information for the temporal dimension corresponding to the target PSFCH resource set can be determined through the above content.

[0207] Optionally, in the method for determining SL feedback information in the embodiments of the present invention, each PSFCH resource in the target PSFCH resource set corresponds to a fifth number of SL HARQ feedback frequency domain bits.

[0208] It is understandable that, for determining the feedback information of the frequency domain dimension corresponding to the target PSFCH resource set, each PSFCH resource in the target PSFCH resource set can correspond to the fifth number of SL HARQ feedback frequency domain bits.

[0209] Optionally, the fifth quantity mentioned above includes at least one of the following:

[0210] (1) The number of available PSSCH resource blocks (RBs) on each second sidelink channel resource, wherein the second sidelink channel resource includes at least one of PSSCH resource and PSCCH resource.

[0211] (2) The number of (available) sub-channels on each second sidelink channel resource.

[0212] (3) The maximum number of PSSCHs used for transmission or demodulation on each second sidelink channel resource.

[0213] (4) At least one number of (available) PSSCH RBs or sub-channels within a target frequency domain resource, wherein the target frequency domain resource includes sub-channels, resource pools, or bandwidth portions (BWP).

[0214] (5) The maximum number of sidelink control information (SCI) or the maximum number of PSCCH resources used for transmission, blind detection, detection or demodulation on each second sidelink channel resource, slot or span.

[0215] (6) At least one number of (available) SCIs or PSCCH resources within a target frequency domain resource, wherein the target frequency domain resource includes sub-channels, resource pools or bandwidth portions of BWP.

[0216] (7) The maximum number of SCIs or the maximum number of PSCCH resources within at least one target frequency domain resource.

[0217] (8) The number of (available) SCIs or PSCCH resources on each second sidelink channel resource, slot, or span.

[0218] (9) Maximum number of PSFCH resources to be transmitted. Optional, this may include either the maximum number of PSFCH resources to be received or the maximum number of PSFCH resources to be transmitted.

[0219] (10) Maximum number of PSFCH RBs to transmit. Optional, this may include the maximum number of PSFCH RBs to receive or the maximum number of PSFCH RBs to transmit.

[0220] (11) The number of (available) PSFCH RBs in a resource pool. It can also be called the number of available PSFCH RBs in a resource pool. rbSetPSFCH (Indicates the set of PRBs that are actually used for PSFCH transmission and reception).

[0221] (12) The maximum value of the number of PSFCH RBs (i.e., the maximum value in rbSetPSFCH) corresponding to at least two resource pools.

[0222] (13) The number of RBs in a subchannel of a resource pool.

[0223] (14) The maximum value of the number of RBs corresponding to the sub-channels in at least two resource pools.

[0224] (15) The number of PSFCH RBs in a subchannel of a resource pool.

[0225] (16) The maximum value of the number of PSFCH RBs corresponding to the sub-channels in at least two resource pools.

[0226] (17) The number of RBs contained in BWP.

[0227] (18) The number of PSFCH RBs contained in BWP.

[0228] (19) The number of (available) PSFCH RBs corresponding to each second sidelink channel resource.

[0229] Optionally, in the method for determining SL feedback information in this embodiment of the invention, the target time interval, PSFCH density, first quantity, second quantity, third quantity, fourth quantity, and fifth quantity are determined based on at least one of the following methods: control node configuration; pre-configuration; network device indication; protocol agreement; other terminal device indication. That is, different parameters can be determined using the same or different methods.

[0230] It should be noted that in the method for determining SL feedback information in the embodiments of the present invention, there is no specific limitation on the order of determining the time-domain feedback information and the frequency-domain feedback information corresponding to the above-mentioned target PSFCH resource set, and they can be combined arbitrarily.

[0231] Optionally, in the method for determining SL feedback information in this embodiment of the invention, SL corresponds to the sixth number of carriers.

[0232] It is understood that, for the carrier dimension, the SL in this embodiment of the invention corresponds to a sixth number of carriers. For each of these sixth number of carriers, the above-mentioned time domain and frequency domain dimensions can be considered to realize a scheme for determining 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.

[0233] Optionally, in the method for determining SL feedback information in this embodiment of the invention, the number of PSFCH RBs associated with the terminal device is the seventh number.

[0234] Optionally, for unicast and multicast option-1 scenarios, the value of the seventh quantity mentioned above can be 1.

[0235] Optionally, for the multicast option-2 scenario, the value of the seventh number mentioned above can be 2.

[0236] Optionally, in the method for determining SL feedback information in this embodiment of the invention, the sixth and seventh quantities can be determined based on at least one of the following methods: control node configuration; pre-configuration; network device indication; protocol agreement; other terminal device indication. That is, different parameters can be determined using the same or different methods.

[0237] Optionally, in the method for determining SL feedback information in this embodiment of the invention, step 101 above can be performed as follows:

[0238] According to at least one of the terminal device dimension, carrier dimension, time domain dimension and frequency domain dimension, the SL HARQ feedback bits corresponding to the target PSFCH resource set are concatenated to determine the SL HARQ feedback information.

[0239] It is understandable that when determining the SL HARQ feedback information, the SL HARQ feedback bits corresponding to the target PSFCH resource set can be sorted and traversed (i.e. concatenated) according to a certain order or rule, which can accurately achieve an ordered and comprehensive mapping between the target PSFCH resource set and the SL HARQ feedback information.

[0240] For example, first iterate through the target time interval {Y2}, sort the PSFCH occasions (e.g., in descending order of Y2 values), and then sort the PSSCH occasions associated with each PSFCH occasion (e.g., by the sidelink slot index of the PSSCH occasion):

[0241] (1) If there are U Y2 values ​​in {Y2} with PSFCH occasions, and the SL codebook is only related to the PSFCH density N and the time domain dimension, if a user can send at most M PSFCHs on a PSFCH occasion, then the corresponding SL HARQ feedback information occupies (U×N×M) bits.

[0242] (2) If there are U Y2 values ​​with PSFCH occasions in {Y2}, and the SL codebook is related to the parameters Z in the time domain dimension, PSFCH density N, and frequency domain dimension (referring to the number of (available) PSFCH RBs corresponding to each PSFCH resource in the target PSFCH resource set, i.e., the fifth quantity), then the corresponding SL HARQ feedback information occupies (U×N×M×Z) bits.

[0243] (3) If there are U Y2 values ​​in {Y2} with PSFCH occasions, and the SL codebook is related to the parameters X (referring to the maximum number of PSFCH RBs transmitted by the user corresponding to each PSFCH resource in the target PSFCH resource set, i.e., the fifth quantity) in the time domain dimension and the frequency domain dimension, and the parameter P (referring to the number of PSFCH RBs associated with the terminal device, i.e. the seventh quantity) in the terminal device dimension, then the corresponding information is (U×X / P) bits.

[0244] Optionally, the method for determining SL feedback information in this embodiment of the invention may further include the following:

[0245] The 1-bit Downlink Assignment Indicator (DAI) in the DCI indicates whether the aforementioned SL HARQ feedback information can be transmitted on the PUSCH.

[0246] Optionally, in the method for determining SL feedback information in this embodiment of the invention, the target uplink channel is associated with at least one target resource; wherein, the target resource includes a resource pool, a subchannel, a bandwidth portion (BWP), or a carrier.

[0247] It is understood that the resources in the target PSFCH resource set associated with the target uplink channel mentioned above can belong to the same target resource, the same group of target resources, or be associated with any target resource. In other words, the target uplink channel can only feed back SL HARQ feedback information corresponding to PSFCH or PSSCH resources within a specified target resource; or it can feed back SL HARQ feedback information corresponding to PSFCH or PSSCH resources within certain specified target resources; or it can feed back SL HARQ feedback information corresponding to PSFCH or PSSCH resources within any target resource.

[0248] Optionally, the way in which the above-mentioned target uplink channel is associated with at least one target resource includes at least one of the following:

[0249] (1) The target uplink channel is associated with one or more target resources in at least one target resource.

[0250] Optionally, the target uplink channel is associated with the identifier (ID) of one or more target resources from at least one target resource. The ID of each target resource can be indicated by control signaling or higher-layer signaling, which may include at least one of RRC signaling, Packet Data Convergence Protocol (PDCP) signaling, Service Data Adaptation Protocol (SDAP) signaling, Radio Link Control (RLC) signaling, and Medium Access Control (MAC) signaling.

[0251] (2) The resource set of the target uplink channel is associated with the ID of one or more target resources in at least one target resource.

[0252] Optionally, the resource set of the target uplink channel is associated with the ID of one or more target resources from at least one target resource.

[0253] (3) The format of the target uplink channel is associated with one or more target resources in at least one target resource.

[0254] Optionally, the format of the target uplink channel is associated with the ID of one or more target resources in at least one target resource.

[0255] (4) The sequence of the target uplink channel is associated with one or more target resources in at least one target resource.

[0256] Optionally, the sequence of the target uplink channel is associated with the ID of one or more target resources among at least one target resource. The sequence of the target uplink channel includes at least one of the following: base sequence, initialization, cyclic shift, phase rotation, etc.

[0257] (5) The frequency domain resources of the target uplink channel are associated with one or more target resources in at least one target resource.

[0258] Optionally, the frequency domain resources of the target uplink channel are associated with the IDs of one or more target resources among at least one target resource.

[0259] (6) The time-domain resources of the target uplink channel are associated with one or more target resources in at least one target resource.

[0260] Optionally, the time-domain resources of the target uplink channel are associated with the IDs of one or more target resources among at least one target resource.

[0261] (7) The frequency hopping pattern of the target uplink channel is associated with one or more target resources in at least one target resource.

[0262] Optionally, the frequency hopping pattern of the target uplink channel is associated with the ID of one or more target resources among at least one target resource. This frequency hopping pattern is used by the communication device for frequency hopping.

[0263] Optionally, the aforementioned target uplink channel is associated with target sidelink channel resources, which include at least one of PSFCH resources, PSSCH resources, and PSCCH resources.

[0264] Optionally, in a specific example, the target sidelink channel resource mentioned above includes at least one resource outside the range of sidelink channel resources corresponding to the at least one target resource mentioned above.

[0265] Optionally, in this specific example, all SL HARQ feedback information corresponding to at least one resource outside the range of the sidelink channel resources corresponding to at least one target resource is either an ACK message or a NACK message.

[0266] For example, in one instance, a PUCCH is associated with resource pool #1, and this PUCCH is associated with four PSFCH occasions: #1, #2, #3, and #4. Occurrence #3 belongs to resource pool #2, while the other three belong to resource pool #1. Therefore, when the PUCCH sends out the HARQ-ACK bit(s) for these four PSFCH occasions, the HARQ-ACK bit(s) corresponding to occasion #3 is set to ACK information.

[0267] In another example, a PUCCH is associated with resource pool #1, and this PUCCH is associated with four PSFCH occasions: #1, #2, #3, and #4. Occurrence #3 of these four PSFCH occasions belongs to resource pool #2, while the other three belong to resource pool #1. When the PUCCH feeds back the HARQ-ACK bit(s) for these four PSFCH occasions, the HARQ-ACK bit(s) corresponding to occasion #3 is set to NACK.

[0268] Further optionally, for the resources in the target PSFCH resource set associated with the above-mentioned target uplink channel, at least one resource outside the range of the sidelink channel resources corresponding to at least one of the above-mentioned target resources may be included.

[0269] It is understood that resources that do not belong to the range of side link channel resources corresponding to at least one target resource associated with the above-mentioned target uplink channel (i.e., at least one resource outside the range of side link channel resources corresponding to at least one target resource) may belong to the set of target PSFCH resources associated with the above-mentioned target uplink channel.

[0270] Optionally, in another specific example, the aforementioned target sidelink channel resource is a resource within the range of sidelink channel resources corresponding to at least one target resource.

[0271] Further optionally, the resources in the target PSFCH resource set associated with the above-mentioned target uplink channel are at least one resource within the range of sidelink channel resources corresponding to at least one of the above-mentioned target resources.

[0272] It is understood that resources that do not belong to the range of side link channel resources corresponding to at least one target resource associated with the above-mentioned target uplink channel (i.e., at least one resource outside the range of side link channel resources corresponding to at least one target resource) also do not belong to the set of target PSFCH resources associated with the above-mentioned target uplink channel.

[0273] Optionally, in the method for determining SL feedback information in this embodiment of the invention, the target sidelink channel resources associated with the target uplink channel are grouped according to the target resources. For example, the resources associated with each target resource or the corresponding SL HARQ-ACK bit(s) are concatenated sequentially according to the ID of the target resource.

[0274] Referring to Figure 7, this embodiment of the invention provides a communication device 300, which can be a network device or a terminal device, and may include:

[0275] The determination module 301 is used 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, which is the interval between the target uplink channel and the PSFCH.

[0276] Optionally, in the communication device 300 of this embodiment, the determining module 301 can be used to:

[0277] The SL HARQ feedback information is determined based on the first number of SL HARQ feedback time-domain bits corresponding to each PSFCH resource in the target PSFCH resource set.

[0278] Optionally, in the communication device 300 of this embodiment, the first quantity is related to the PSFCH density.

[0279] Optionally, in the communication device 300 of this embodiment of the invention, the value of the first quantity is equal to the value of the PSFCH density.

[0280] Optionally, in the communication device 300 of this embodiment of the invention, the first quantity is related to the target subcarrier spacing SCS, wherein the target SCS includes at least one of the side link subcarrier SL SCS and the air interface subcarrier Uu SCS.

[0281] Optionally, in the communication device 300 of this embodiment of the invention, if the target SCS includes SL SCS and Uu SCS, the value of the first quantity is determined based on one of the following methods:

[0282] The value of the first quantity = SL SCS / Uu SCS; The value of the first quantity = the value of PSFCH density × SL SCS / Uu SCS.

[0283] Optionally, in the communication device 300 of this embodiment, the determining module 301 can also be used for:

[0284] Determine the time domain location corresponding to the target time interval; determine the PSFCH resource set corresponding to the target uplink channel based on each time domain location.

[0285] Optionally, in the communication device 300 of this embodiment, the determining module 301 can also be used for:

[0286] The target PSFCH resource set is determined 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.

[0287] Optionally, in the communication device 300 of this embodiment of the invention, the PSFCH resource set corresponding to the target uplink channel includes a first PSFCH resource, and the first PSFCH resource corresponds to the time domain location containing the PSFCH resource.

[0288] Optionally, in the communication device 300 of this embodiment, the determining module 301 can also be used for:

[0289] 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.

[0290] Optionally, in the communication device 300 of this embodiment of the invention, 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 contain a PSFCH resource.

[0291] Optionally, in the communication device 300 of this embodiment, the determining module 301 can also be used for:

[0292] 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.

[0293] Optionally, in the communication device 300 of this embodiment, the determining module 301 can be used to:

[0294] The SL HARQ feedback information corresponding to the second PSFCH resource in the target PSFCH resource set is determined to be either an ACK message or a NACK message.

[0295] Optionally, in the communication device 300 of this embodiment, the determining module 301 can be used to:

[0296] Based on the second number of first sidelink channel resources corresponding to each PSFCH resource in the target PSFCH resource set, the SL HARQ feedback information is determined; wherein, the first sidelink channel resources include at least one of the physical sidelink shared channel PSSCH resources and the physical sidelink control channel PSCCH resources.

[0297] Optionally, in the communication device 300 of this embodiment of the invention, the second quantity is related to the PSFCH density.

[0298] Optionally, in the communication device 300 of this embodiment of the invention, the value of the second quantity is equal to the value of the PSFCH density.

[0299] Optionally, in the communication device 300 of this embodiment of the invention, the second quantity is related to the target subcarrier spacing SCS, wherein the target SCS includes at least one of SL SCS and Uu SCS.

[0300] Optionally, in the communication device 300 of this embodiment of the invention, if the target SCS includes SL SCS and Uu SCS, the value of the second quantity is determined based on one of the following methods:

[0301] The value of the second quantity = SL SCS / Uu SCS; The value of the second quantity = the value of PSFCH density × SL SCS / Uu SCS.

[0302] Optionally, in the communication device 300 of this embodiment, the determining module 301 can be used to:

[0303] If the first sidelink channel resource is used to transmit the corresponding first sidelink channel, then the SL HARQ feedback time-domain bit corresponding to the first sidelink channel resource is set to the decoding state or SL HARQ feedback state corresponding to the first sidelink channel.

[0304] Optionally, in the communication device 300 of this embodiment, the determining module 301 can be used to:

[0305] Under the condition that the first preset condition is met, all SL HARQ feedback time-domain bits corresponding to the first sidelink channel resource are set to ACK information; wherein the first preset condition includes one of the following: the first sidelink channel resource is used to transmit broadcast messages; the sidelink control information corresponding to the first sidelink channel indicates that no SL HARQ feedback information is fed back; the network device is pre-configured or configured not to feed back SL HARQ feedback information; SL HARQ feedback is not enabled; HARQ feedback is performed using multicast option-1 and no NACK information corresponding to the first sidelink channel resource is received; the first sidelink channel resource is a configured authorized resource that is not used.

[0306] Optionally, in the communication device 300 of this embodiment, the determining module 301 can be used to:

[0307] Under the condition that the second preset condition is met, all SL HARQ feedback time-domain bits corresponding to the first sidelink channel resource are set to NACK information; wherein the second preset condition includes one of the following: no SL HARQ feedback information corresponding to the first sidelink channel resource is received; no PSFCH corresponding to the first sidelink channel resource is received; no second signaling for scheduling the first sidelink channel resource is detected; the first sidelink channel resource is not used to transmit the corresponding first sidelink channel; the first sidelink channel resource is preempted; the transmission corresponding to the first sidelink channel resource is dropped, abandoned, or canceled; the first sidelink channel resource is used to transmit the corresponding first sidelink channel, and the third signaling corresponding to the first sidelink channel indicates that the uplink channel corresponding to other time-domain positions other than the target time-domain position performs SL HARQ feedback.

[0308] Optionally, in the communication device 300 of this embodiment, if a third number of first side-link channel resources out of the aforementioned second number are used to transmit the same transport block TB or to repeatedly transmit PSSCH, the determining module 301 may be used to perform one of the following:

[0309] The time-domain bits of each SL HARQ feedback corresponding to the third quantity of first sidelink channel resources are set to the decoding state or SL HARQ feedback state of the first sidelink channel corresponding to the first sidelink channel resource. For the fourth quantity of first sidelink channel resources in the third quantity of first sidelink resources, the time-domain bits of each SL HARQ feedback corresponding to the fourth quantity of first sidelink channel resources are set to the decoding state or SL HARQ feedback state of the first sidelink channel corresponding to the first sidelink channel resource. For the other first sidelink channel resources in the third quantity of first sidelink channel resources other than the fourth quantity of first sidelink channel resources, the time-domain bits of each SL HARQ feedback corresponding to the other first sidelink channel resources are set to one of ACK information and NACK information. The time-domain bits of each SL HARQ feedback corresponding to the fourth quantity of first sidelink channel resources are set to the decoding state or SL HARQ feedback state of the first sidelink channel corresponding to the first sidelink channel resource, and the time-domain bits of each SL HARQ feedback corresponding to the other first sidelink channel resources are set to one of ACK information and NACK information. The time-domain bits of each SL HARQ feedback corresponding to the third quantity of first sidelink channel resources are set to one of ACK information and NACK information. The HARQ feedback time-domain bits are set to the decoding state or SL HARQ feedback state of the first sidelink channel corresponding to the resource located at the preset position in the third number of first sidelink channel resources.

[0310] Optionally, in the communication device 300 of this embodiment of the invention, the target PSFCH resource set is determined based on at least one of a first feedback time and a second feedback time.

[0311] Optionally, in the communication device 300 of this embodiment of the invention, the determining module 301 can also be used to determine the target PSFCH resource set based on one of the following:

[0312] Based on the resource location of the target uplink channel and the first feedback time, determine the target PSFCH resource set associated with the target uplink channel; based on the resource location of the target uplink channel, the first feedback time, and the second feedback time, determine the feedback time period, and determine the target PSFCH resource set associated with the target uplink channel based on the feedback time period; based on the resource location of the target uplink channel and the second feedback time, determine the feedback time period, and determine the target PSFCH resource set associated with the target uplink channel based on the feedback time period.

[0313] Optionally, in the communication device 300 of this embodiment of the invention, when the set of target PSFCH resources associated with the target uplink channel is determined according to the above-mentioned feedback time period, each target time within the above-mentioned feedback time period corresponds to at least one SL HARQ feedback time domain bit.

[0314] Optionally, in the communication device 300 of this embodiment of the invention, the target time period includes the resources in the target PSFCH resource set.

[0315] Optionally, in the communication device 300 of this embodiment of the invention, each PSFCH resource in the target PSFCH resource set corresponds to a fifth number of SL HARQ feedback frequency domain bits.

[0316] Optionally, in the communication device 300 of this embodiment of the invention, the aforementioned fifth quantity includes at least one of the following: the number of PSSCH resource blocks (RBs) corresponding to each second sidelink channel resource, wherein the second sidelink channel resource includes at least one of PSSCH resources and PSCCH resources; the number of sub-channels on each second sidelink channel resource; the maximum number of corresponding PSSCHs used for transmission or demodulation on each second sidelink channel resource; and the number of PSSCH RBs or sub-channels within at least one target frequency domain resource, wherein the target frequency domain resource includes sub-channels, resource pools, or bandwidth portions (BWPs).

[0317] Optionally, in the communication device 300 of this embodiment of the invention, the aforementioned fifth quantity includes at least one of the following: the maximum number of sidelink control information (SCI) or the maximum number of PSCCH resources used for transmission, blind detection, detection, or demodulation on each second sidelink channel resource, slot, or span; the number of SCI or PSCCH resources within at least one target frequency domain resource, wherein the target frequency domain resource includes a subchannel, resource pool, or bandwidth portion (BWP); the maximum number of SCI or the maximum number of PSCCH resources within at least one target frequency domain resource; and the number of SCI or PSCCH resources on each second sidelink channel resource, slot, or span.

[0318] Optionally, in the communication device 300 of this embodiment of the invention, the fifth quantity mentioned above includes one of the following: the maximum number of PSFCH resources to be transmitted; the maximum number of PSFCH RBs to be transmitted.

[0319] Optionally, in the communication device 300 of this embodiment of the invention, the aforementioned fifth quantity includes one of the following: the number of PSFCH RBs in a resource pool; the maximum value among 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 value among 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; the maximum value among the number of PSFCH RBs corresponding to a sub-channel in at least two resource pools; the number of RBs contained in the BWP; the number of PSFCH RBs contained in the BWP.

[0320] Optionally, in the communication device 300 of this embodiment of the invention, the fifth quantity mentioned above includes: the number of PSFCH RBs corresponding to each second sidelink channel resource.

[0321] Optionally, in the communication device 300 of this embodiment, SL corresponds to the sixth number of carriers.

[0322] Optionally, in the communication device 300 of this embodiment, the number of PSFCH RBs associated with the terminal device is the seventh quantity.

[0323] Optionally, in the communication device 300 of this embodiment, the determining module 301 can be used to:

[0324] According to at least one of the terminal device dimension, carrier dimension, time domain dimension and frequency domain dimension, the SL HARQ feedback bits corresponding to the target PSFCH resource set are concatenated to determine the SL HARQ feedback information.

[0325] Optionally, in the communication device 300 of this embodiment of the invention, the target uplink channel is associated with at least one target resource; wherein, the target resource includes a resource pool, a subchannel, a bandwidth portion (BWP), or a carrier.

[0326] Optionally, in the communication device 300 of this embodiment of the invention, the method of associating the target uplink channel with at least one target resource includes at least one of the following: associating the target uplink channel with one or more of the at least one target resource; associating the resource set of the target uplink channel with one or more of the at least one target resource; associating the format of the target uplink channel with one or more of the at least one target resource; associating the sequence of the target uplink channel with one or more of the at least one target resource; associating the frequency domain resource of the target uplink channel with one or more of the at least one target resource; associating the time domain resource of the target uplink channel with one or more of the at least one target resource; and associating the frequency hopping pattern of the target uplink channel with one or more of the at least one target resource.

[0327] Optionally, in the communication device 300 of this embodiment of the invention, the target uplink channel is associated with the target sidelink channel resources, and the target sidelink channel resources include at least one of the PSFCH resources, the physical sidelink shared channel PSSCH resources, and the physical sidelink control channel PSCCH resources.

[0328] Optionally, in the communication device 300 of this embodiment of the invention, the target sidelink channel resource includes at least one resource outside the range of sidelink channel resources corresponding to at least one target resource.

[0329] Optionally, in the communication device 300 of this embodiment, all SL HARQ feedback information corresponding to at least one resource outside the range of the side link channel resources corresponding to the at least one target resource is one of positive acknowledgment (ACK) information and negative acknowledgment (NACK) information.

[0330] Optionally, in the communication device 300 of this embodiment of the invention, the aforementioned target sidelink channel resource is a resource within the range of sidelink channel resources corresponding to at least one target resource.

[0331] It is understood that the communication device 300 provided in this embodiment of the invention can implement the aforementioned method for determining side link feedback information executed by the communication device 300. The relevant descriptions of the method for determining side link feedback information are applicable to the communication device 300 and will not be repeated here.

[0332] In this embodiment of the invention, the target PSFCH resource set associated with the target uplink channel can be accurately derived by using the target time interval between the target uplink channel and the physical sidelink feedback channel (PSFCH). This establishes a mapping relationship between the target uplink channel and the target PSFCH resource set, allowing the SL HARQ feedback information corresponding to the target PSFCH resource set to be mapped onto the target uplink channel for reporting. This achieves efficient and reliable HARQ feedback on the sidelink, enabling the receiver of the SL HARQ feedback information to accurately determine whether data transmission on the sidelink has been successful, thereby improving the reliability and resource utilization of data transmission on the SL.

[0333] Figure 8 is a block diagram of a terminal device according to an embodiment of the present invention. The terminal device 400 shown in Figure 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 via a bus system 405. It is understood that the bus system 405 is used to implement communication between these components. In addition to a data bus, the bus system 405 also includes a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus system 405 in Figure 8.

[0334] The user interface 403 may include a display, keyboard, or clicking device (e.g., mouse, trackball, touchpad, or touchscreen).

[0335] It is understood that the memory 402 in the embodiments of the present invention can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 402 of the systems and methods described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0336] In some implementations, memory 402 stores elements such as executable modules or data structures, or subsets thereof, or extended sets thereof: operating system 4021 and application program 4022.

[0337] The operating system 4021 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 4022 includes various applications, such as a media player and a browser, used to implement various application functions. The program implementing the method of this embodiment can be included in the application program 4022.

[0338] In this embodiment of the invention, the terminal device 400 further includes: a computer program stored on a memory 402 and executable on a processor 401, wherein the computer program, when executed by the processor 401, performs the following steps:

[0339] The sidelink hybrid automatic repeat request (SL HARQ) feedback information is determined based on the target physical sidelink feedback channel (PSFCH) resource set associated with the target uplink channel. The target PSFCH resource set is determined based on the target time interval, which is the interval between the target uplink channel and the PSFCH.

[0340] The methods disclosed in the above embodiments of the present invention can be applied to processor 401, or implemented by processor 401. Processor 401 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 401 or by instructions in the form of software. The processor 401 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present invention can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature computer-readable storage media in the art. The computer-readable storage medium is located in memory 402. Processor 401 reads the information in memory 402 and, in conjunction with its hardware, completes the steps of the above method. Specifically, the computer-readable storage medium stores a computer program, which, when executed by processor 401, implements the steps of the method embodiment described above for determining sidelink feedback information.

[0341] It is understood that the embodiments described in these embodiments of the present invention can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in this invention, or combinations thereof.

[0342] For software implementation, the techniques described in the embodiments of the present invention can be implemented through modules (e.g., procedures, functions, etc.) that perform the functions described in the embodiments of the present invention. The software code can be stored in memory and executed by a processor. The memory can be implemented in the processor or externally.

[0343] In this embodiment of the invention, the target PSFCH resource set associated with the target uplink channel can be accurately derived by using the target time interval between the target uplink channel and the physical sidelink feedback channel (PSFCH). This establishes a mapping relationship between the target uplink channel and the target PSFCH resource set, allowing the SL HARQ feedback information corresponding to the target PSFCH resource set to be mapped onto the target uplink channel for reporting. This achieves efficient and reliable HARQ feedback on the sidelink, enabling the receiver of the SL HARQ feedback information to accurately determine whether data transmission on the sidelink has been successful, thereby improving the reliability and resource utilization of data transmission on the SL.

[0344] The terminal device 400 can implement the various processes implemented by the communication device in the foregoing embodiments, and will not be repeated here to avoid repetition.

[0345] Please refer to Figure 9, which is a structural diagram of the network device used in this embodiment of the invention. It details the implementation of the aforementioned beam information update method and achieves the same effect. As shown in Figure 9, the network device 500 includes: a processor 501, a transceiver 502, a memory 503, a user interface 504, and a bus interface 505, wherein:

[0346] In this embodiment of the invention, the network device 500 further includes: a computer program stored on a memory 503 and executable on a processor 501, wherein the computer program, when executed by the processor 501, performs the following steps:

[0347] The sidelink hybrid automatic repeat request (SL HARQ) feedback information is determined based on the target physical sidelink feedback channel (PSFCH) resource set associated with the target uplink channel. The target PSFCH resource set is determined based on the target time interval, which is the interval between the target uplink channel and the PSFCH.

[0348] In Figure 9, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 501 and memory represented by memory 503. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 505 provides an interface. Transceiver 502 may be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, user interface 504 may also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0349] The processor 501 is responsible for managing the bus architecture and general processing, while the memory 503 can store the data used by the processor 501 when performing operations.

[0350] In this embodiment of the invention, the target PSFCH resource set associated with the target uplink channel can be accurately derived by using the target time interval between the target uplink channel and the physical sidelink feedback channel (PSFCH). This establishes a mapping relationship between the target uplink channel and the target PSFCH resource set, allowing the SL HARQ feedback information corresponding to the target PSFCH resource set to be mapped onto the target uplink channel for reporting. This achieves efficient and reliable HARQ feedback on the sidelink, enabling the receiver of the SL HARQ feedback information to accurately determine whether data transmission on the sidelink has been successful, thereby improving the reliability and resource utilization of data transmission on the SL.

[0351] Preferably, the present invention also provides a communication device (which may be a network device or a terminal device), including a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, it implements the various processes of the method for determining side link feedback information in the above embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0352] This invention also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements the various processes of the method for determining sidelink feedback information applied to the aforementioned communication device (which can be a network device or a terminal device) described in the above embodiments, and achieves the same technical effect. To avoid repetition, it will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0353] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0354] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0355] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Images