Information transmission method, device and storage medium

Abstract

The present application discloses an information transmission method, device and storage medium, which belong to the field of communication technology. The information transmission method of an embodiment of the present application includes: a terminal determines status information corresponding to sidelink resources in an unlicensed frequency band; the terminal indicates the status information to a target node; the target node includes a control node and / or a target terminal.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to an information transmission method, device and storage medium. Background Art

[0002] In order to obtain more resources to meet the service requirements of side link (SL) transmission, it may be necessary to perform SL transmission in an unlicensed frequency band.

[0003] Current SL technology frameworks are mostly designed for licensed or dedicated SL bands. Other wireless technologies, such as Wi-Fi, may operate in unlicensed bands. Therefore, user devices must first monitor resource availability and confirm availability before attempting channel access. In the presence of a control node, the user's monitoring results may need to be communicated to the control node to assist in determining an appropriate scheduling strategy. Otherwise, a user may fail to seize resources, yet the control node schedules the user or requests feedback, resulting in wasted resources. Summary of the Invention

[0004] The embodiments of the present application provide an information transmission method, device, and storage medium, which can solve the technical problem of resource waste.

[0005] In a first aspect, a method for transmitting information is provided, comprising:

[0006] The terminal determines status information corresponding to the sidelink resources in the unlicensed frequency band;

[0007] The terminal indicates the status information to a target node; the target node includes a control node and / or a target terminal.

[0008] In a second aspect, an information transmission method is provided, comprising:

[0009] The target node obtains status information; the status information is indicated to the target node after the terminal determines the status information corresponding to the sidelink resource of the unlicensed frequency band; the target node includes a control node and / or a target terminal.

[0010] In a third aspect, an information transmission device is provided, comprising:

[0011] A first determining module is used to determine status information corresponding to sidelink resources in an unlicensed frequency band;

[0012] The first indication module is configured to indicate the status information to a target node; the target node includes a control node and / or a target terminal.

[0013] In a fourth aspect, an information transmission device is provided, comprising:

[0014] The third acquisition module is used to obtain status information; the status information is indicated to the target node after the terminal determines the status information corresponding to the sidelink resource of the unlicensed frequency band; the target node includes a control node and / or a target terminal.

[0015] In a fifth aspect, a terminal is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0016] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is configured to determine status information corresponding to sidelink resources in an unlicensed frequency band;

[0017] The status information is indicated to a target node; the target node includes a control node and / or a target terminal.

[0018] In the seventh aspect, a network side device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and runnable on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0019] In the eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the processor is used to obtain status information; the status information is indicated to the target node after the terminal determines the status information corresponding to the side link resources of the unlicensed frequency band; the target node includes a control node and / or a target terminal.

[0020] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0021] In the tenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0022] In the eleventh aspect, a computer program / program product is provided, which is stored in a non-volatile storage medium, and the program / program product is executed by at least one processor to implement the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0023] In the embodiment of the present application, by determining the status information corresponding to the sidelink resources in the unlicensed frequency band and indicating the status information, it is ensured that the control node and the terminal have consistent understanding, thereby improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a structural diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0025] Figure 2 This is one of the flow charts of the information transmission method according to an embodiment of the present application;

[0026] Figure 3 This is the second flow chart of the information transmission method according to an embodiment of the present application;

[0027] Figure 4 This is one of the structural diagrams of the information transmission device according to an embodiment of the present application;

[0028] Figure 5 This is the second structural diagram of the information transmission device according to the embodiment of the present application;

[0029] Figure 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0030] Figure 7 Schematic diagram of the hardware structure of the terminal according to the embodiment of the present application;

[0031] Figure 8 It is a schematic diagram of the hardware structure of the network side device of an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0033] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0034] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0035] Figure 11 is a structural diagram of a wireless communication system applicable to the embodiments of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may also be referred to as a terminal device, user terminal, or user equipment (UE). The terminal 11 may be a mobile phone, tablet personal computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted equipment (VUE), pedestrian terminal (PUE), smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), and other terminal-side devices. Wearable devices include smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, and game consoles. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0036] The information transmission method, device and storage medium provided in the embodiments of the present application are described in detail below with reference to some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0037] Figure 2This is one of the flow charts of the information transmission method according to the embodiment of the present application. Figure 2 As shown, an embodiment of the present application discloses an information transmission method, the execution subject of which may be a UE, for example, a first user equipment UE1 or a second user equipment UE2, and the method includes:

[0038] Step 201: The terminal determines status information corresponding to sidelink resources in an unlicensed frequency band;

[0039] Step 202: The terminal indicates the status information to a target node; the target node includes a control node and / or a target terminal.

[0040] One way to determine the status information corresponding to the sidelink resources in the unlicensed frequency band is to monitor the sidelink resources to determine the corresponding status information.

[0041] Specifically, the network architecture involved in the information transmission method of the embodiment of the present application includes at least a control node, UE1 and UE2.

[0042] The transmission of the sidelink (SL) data packet may be performed on the SL between UE1 and UE2.

[0043] A device with scheduling or control capabilities is called a control node, which can be at least one of a base station (such as an NR base station, an LTE base station, etc.), a road side unit (RSU), a scheduling UE, a header UE, a vehicle head, etc.

[0044] In the embodiment of the present application, the target node includes a control node and / or a target terminal, and the target terminal is a terminal associated with the SL transmission of the terminal. For example, when the terminal is UE1, the target terminal is UE2; when the terminal is UE2, the target terminal is UE1.

[0045] The embodiments of the present application may be applied to at least one of the following scenarios:

[0046] Scenario 1: The control node indicates the sidelink resource to UE1, and UE1 indicates the status information to the control node and / or the third user equipment UE3.

[0047] Case 1: The control node indicates the sidelink resource to UE1, UE1 monitors the sidelink resource and determines the status information, and UE1 indicates it to the control node.

[0048] Case 2: The control node indicates the sidelink resource to UE1, UE1 indicates the sidelink resource to UE2, UE2 monitors the sidelink resource and determines state information, UE2 indicates the state information to UE1, and UE1 indicates the state information to the control node.

[0049] Scenario 2: The control node indicates the sidelink resource to UE1, and UE2 indicates the status information to the control node and / or UE3.

[0050] Case 1: The control node indicates the sidelink resource to UE1, UE1 indicates the sidelink resource to UE2, UE2 monitors the sidelink resource and determines state information, and UE2 indicates the state information to the control node.

[0051] Case 2: The control node indicates the sidelink resource to UE1, UE1 monitors the sidelink resource and determines state information, UE1 indicates the state information to UE2, and UE2 indicates the state information to the control node.

[0052] Scenario 3: UE1 instructs UE2 to monitor sidelink resources. UE2 determines status information and indicates it to UE1.

[0053] Optionally, the sidelink resource includes at least one of the following:

[0054] target channel;

[0055] Target transmission;

[0056] target beam;

[0057] Target time.

[0058] a. Optionally, the above time can be interpreted as at least one of the following:

[0059] One cycle;

[0060] Channel Occupancy Time (COT);

[0061] How long the timer runs;

[0062] Extended Clear Channel Assessment (eCCA)

[0063] b. Optionally, the sidelink resource may be at least one of the following:

[0064] Resources used to transmit PSCCH and / or PSSCH;

[0065] COT for transmitting PSCCH and / or PSSCH;

[0066] Contains PSCCH and / or PSSCH resources;

[0067] Contains the COT of PSCCH and / or PSSCH.

[0068] c. Optionally, the sidelink resource may be at least one of the following:

[0069] Resources used to transmit PSCCH and / or PSSCH, and their associated PSFCH;

[0070] COT used to transmit PSCCH and / or PSSCH, and their associated PSFCH;

[0071] Contains PSCCH and / or PSSCH, and its associated PSFCH resources;

[0072] Contains the COT of PSCCH and / or PSSCH, and its associated PSFCH.

[0073] The target transmission may be data, control information, or some special signals, such as a preamble.

[0074] The sidelink resources include a first sidelink resource and a second sidelink resource.

[0075] The first sidelink resource includes at least one of the following:

[0076] First channel;

[0077] First transmission;

[0078] First beam;

[0079] First time.

[0080] The second sidelink resource includes at least one of the following:

[0081] second channel;

[0082] Second transmission;

[0083] Second beam;

[0084] Second time.

[0085] Optionally, it also includes:

[0086] Obtaining first indication information;

[0087] The first indication information is used to indicate at least one of the following:

[0088] the sidelink chain resources;

[0089] listening parameters of the sidelink resource;

[0090] Listening to the sidelink resource.

[0091] Optionally, before this, the control node instructs UE1 to use sidelink resources, or instructs UE1 to monitor sidelink resources.

[0092] a. For example, the control node sends sidelink resource information to UE1, and UE1 monitors the sidelink resource.

[0093] b. Optionally, the control node sends monitoring configuration information to UE1, and UE1 performs monitoring according to the monitoring configuration information, where the monitoring configuration information includes at least one of the following:

[0094] i. The type of sidelink resource, for example, a specific channel type, such as S-SSB, PSSCH, PSSCH and PSFCH.

[0095] ii. At least one of the following: the maximum number of preemption attempts, the preemption time (e.g., a timeout is considered a failure), an indication of the preempted beam (e.g., which beam or beams are used for preemption), the start time of the preemption, the duration of the preemption, information about monitored sidelink resources (e.g., monitoring preset channels, preset signaling, preset sequences), information about signals and / or channels used to preempt resources or indicate that resources have been preempted (e.g., using specific channels, specific signaling, specific sequences, e.g., on specific resources, using a specific structure), and a preempted resource structure (e.g., an interlace or pattern of preempted resources).

[0096] Optionally, the status information includes at least one of the following:

[0097] first state information corresponding to a first sidelink resource; the first sidelink resource being at least a portion of the sidelink resources;

[0098] Second state information corresponding to a second sidelink resource, where the second sidelink resource is at least a portion of the sidelink resources.

[0099] i. The first status information is used to indicate at least one of the following:

[0100] 1. The first sidelink resource is available;

[0101] 2. The first sidelink resource is available to other terminals; the other terminals are terminals other than the terminal;

[0102] For example, the right to use the first sidelink resource is obtained (or the first sidelink resource can be used);

[0103] Successfully seize and / or access the first sidelink resource;

[0104] 3. The first sidelink link resources are idle;

[0105] 4. The first sidelink resource is idle for other terminals;

[0106] 5. The transmission on the first sidelink resource is successful;

[0107] 6.ACK;

[0108] For example, the UE successfully seizes and / or accesses channel resources and feeds back an ACK to the control node.

[0109] 7. Feedback information and / or SL decoding status.

[0110] For example, the SL HARQ-ACK information or information on the PSFCH obtained by the UE, or the HARQ-ACK information determined or generated according to the PSFCH reception situation.

[0111] Optionally, in some implementation methods, at least one of the above items can be indicated by setting the content of the first state information to preset content. The preset content can be a bit string representing some specific meaning. For example, the content of the first state information is 1100, which means that the resource is successfully seized.

[0112] ii. The second status information is used to indicate at least one of the following:

[0113] 1. The second sidelink resource is unavailable;

[0114] 2. The second sidelink resource is unavailable to other terminals;

[0115] For example, the right to use the second sidelink resource is not obtained (or the second sidelink resource cannot be used);

[0116] Failure to seize and / or access the second side link resource;

[0117] 3. The second sidelink resource is busy;

[0118] 4. The second sidelink resource is busy for other terminals;

[0119] 5. Transmission on the second sidelink resource fails;

[0120] 6. The transmission of the second sidelink resource and / or its corresponding feedback is not detected (i.e., DTX);

[0121] 7. The transmission of the second sidelink resource and / or its corresponding feedback is canceled;

[0122] 8. NACK;

[0123] For example, the UE fails to seize and / or access channel resources and feeds back a NACK to the control node. Further, the control node may instruct the UE to monitor new sidelink resources.

[0124] 9. Feedback information / SL decoding status.

[0125] For example, UE2 indicates the SL decoding status and whether UE2 has successfully acquired the PSFCH channel to the control node. If the decoding is successful, the control node does not need to schedule retransmission even if UE2 has not successfully acquired the PSFCH.

[0126] Optionally, in some implementation methods, at least one of the above items can be indicated by setting the content of the second state information to preset content, such as the preset content being a bit string representing a specific meaning, for example, the content of the second state information is 0000, 0000 indicating a failure to seize resources.

[0127] Optionally, the second sidelink resource satisfies at least one of the following conditions:

[0128] Each second sidelink resource has at least one associated resource for indicating second state information;

[0129] The N1th of the second side-link resources, or the M1th of at least part of the second side-link resources, has at least one associated resource for indicating second state information;

[0130] N2 of the second side link resources, or M2 of at least some of the second side link resources in the second side link resources, have at least one associated leading resource for indicating the second side link resource, and N1, N2, M1 and M2 are all positive integers.

[0131] Specifically, for a case where UE1 cannot determine the second state information, that is, cannot determine whether the second resource is idle and / or available (usually this case means that the monitoring of the second resource is performed by UE2), the design of the second resource includes at least one of the following (usually not a FBE scenario):

[0132] The locations of the plurality of second sidelink resources are determined by at least one of the following methods:

[0133] Control node configuration;

[0134] Pre-configuration;

[0135] predefined;

[0136] UE obtains.

[0137] The UE monitors at least part of them.

[0138] 1. Each second sidelink resource has at least one associated resource for displaying or implicitly indicating second status information.

[0139] For example, each second sidelink resource is associated with a resource for displaying or implicitly indicating the second status information.

[0140] 2. The N1th second resource among the plurality of second sidelink resources or the M2th second resource of the at least part of the second resources has at least one associated resource for displaying or implicitly indicating the second state information.

[0141] For example, the last one of the plurality of second sidelink resources or the last second resource of the at least part of the second resources has at least one associated resource for displaying or implicitly indicating the second state information.

[0142] 3. N1 of the plurality of second sidelink resources or M2 of the at least part of the second resources (each of the second resources) has at least one associated leading resource for indicating the resource.

[0143] For example, if the leading resource is detected, it indicates that the corresponding second resource is idle and / or available, or has been successfully preempted.

[0144] Optionally, the status information includes at least one of the following:

[0145] 1. State information corresponding to any or all types of sidelink resources.

[0146] For example, a target channel may contain multiple types of channels, but report a single state for them all.

[0147] 2. Different types of sidelink resources have their own corresponding status information.

[0148] For example, the target channel may include multiple types of channels, each reporting its own status information. For example, PSSCH and PSFCH each have their own status information.

[0149] in:

[0150] 1. The first sidelink resource and / or the second sidelink resource are at least part of the sidelink resource.

[0151] For example, the first sidelink resource is the sidelink resource.

[0152] For another example, the second sidelink resource is the sidelink resource.

[0153] 2. Alternatively, the first sidelink resource and / or the second sidelink resource is a preset sidelink resource associated with the sidelink resource.

[0154] For example, the target resource is a PSSCH and / or a PSCCH, and the first sidelink resource and / or the second sidelink resource is a related PSFCH.

[0155] 3. UE2 is a receiving UE of UE1 or a sending UE of UE1, or UE2 is a UE related to the transmission of UE1.

[0156] Optionally, UE1 and / or UE2 indicates the state information to the target node in an explicit or implicit manner.

[0157] a. When at least one of the following conditions is met, the control node is indicated in an explicit or implicit manner:

[0158] i. The control node configures semi-static resources for transmitting status information, such as UL CG.

[0159] ii. The control node schedules the UE to transmit status information.

[0160] iii. At least one of: at least a portion of the sidelink resources is idle, at least a portion of the sidelink resources is available, at least a portion of the sidelink resources is idle for other terminals, at least a portion of the sidelink resources is available for other terminals, a transmission is performed on at least a portion of the sidelink resources, a transmission on at least a portion of the sidelink resources is successful, and the UE obtains an ACK.

[0161] The fact that at least part of the sidelink resources are available or at least part of the sidelink resources are available to other terminals includes at least one of the following:

[0162] Obtaining the right to use at least part of the sidelink chain resources;

[0163] Preempting at least partially succeeds in sidechain resource acquisition;

[0164] Channel access to at least a portion of the side-link resources is successful.

[0165] iv. The decoding of the transmission on at least part of the sidelink resources is successful.

[0166] v. The feedback information corresponding to the transmission on at least part of the sidelink resources is ACK.

[0167] vi. The status information includes first status information.

[0168] b. Not indicating to the control node when at least one of the following conditions is met:

[0169] i. At least one of at least a portion of the side link resources being busy and / or unavailable, not obtaining the right to use at least a portion of the side link resources, failing to preempt and / or channel access at least a portion of the side link resources, transmission failure or DTX on at least a portion of the side link resources, not detecting feedback corresponding to at least a portion of the side link resources (e.g., DTX), and obtaining a NACK by the UE.

[0170] ii. The status information only includes the second status information.

[0171] Optionally, UE1 and / or UE2 may indicate the status information to the control node in an explicit or implicit manner.

[0172] The step of indicating the status information to other nodes includes:

[0173] Indicating the first status information to the control node, wherein indicating the first status information to the control node includes at least one of the following:

[0174] a. The specific method of indicating the first state information to the control node in an explicit or implicit manner includes at least one of the following:

[0175] i. Send the first status information;

[0176] ii. Not sending the status information, for example, not sending the second status information indicates that the first status information is indicated, for example, DTX is used to indicate the status information.

[0177] b. The step of indicating the status information to other nodes comprises:

[0178] Indicating the second status information to the control node, wherein indicating the second status information to the control node includes at least one of the following:

[0179] i. Send the second status information:

[0180] ii. Not sending status information, for example, not sending the first status information, that is, DTX is used to indicate status information.

[0181] Optionally, UE1 and / or UE2 indicates the first status information to the control node under preset condition 1, where the preset condition 1 includes at least one of the following:

[0182] a. Monitor that at least some of the sidelink resources are available.

[0183] b. At least part of the sidelink resources are available to other terminals.

[0184] For example, the right to use at least part of the sidelink resources is acquired (or the first sidelink resource can be used).

[0185] Preemption and / or channel access are at least partially successful in side-link resources.

[0186] c. At least some of the link resources are idle.

[0187] d. At least part of the sidelink resources are idle for other terminals.

[0188] e. Transmission is performed on at least part of the sidelink resources.

[0189] f. The transmission on at least a portion of the sidelink resources is successful.

[0190] Optionally, UE1 and / or UE2 indicates the second state information to the control node under preset condition 2, where preset condition 2 includes at least one of the following:

[0191] a. Monitoring that at least some of the sidelink resources are unavailable.

[0192] b. At least part of the sidelink resources are unavailable to other terminals.

[0193] For example, the right to use at least part of the sidelink resources is not acquired (or the first sidelink resource may be used).

[0194] Preemption and / or channel access fail at least partially in the side-link resources.

[0195] c. At least some of the sidelink resources are busy.

[0196] d. At least part of the sidelink resources are busy for other terminals.

[0197] e. At least part of the sidelink resources is not used for transmission.

[0198] f. Transmission on at least some of the sidelink resources fails.

[0199] g. For the case where the second state information is indicated by the first terminal (including the terminal and at least one of the terminals associated with the SL transmission of the terminal, for example, the terminal is UE1, the terminal UE2 associated with UE1, and the first terminal includes UE1 and / or UE2), the preset condition 2 may include a condition that the first terminal does not receive the expected feedback.

[0200] For example, UE2 fails to obtain PSFCH resources, so UE1 cannot detect the PSFCH fed back by UE2. At this time, the second status information indicated by UE1 to the control node indicates that the PSFCH resources are busy and / or unavailable.

[0201] h. For the case where the first terminal indicates the second state information, the preset condition 2 may include a condition that the feedback received by the first terminal is NACK.

[0202] For example, UE2 obtains PSFCH resources but cannot decode PSCCH and / or PSSCH and reports NACK to UE1 via PSFCH, so that UE1 indicates the second status information of the control node indicating that PSCCH and / or PSSCH transmission fails.

[0203] Optionally, the UE obtains reporting resources and / or the control node provides status information configuration, and determines how to indicate the status information according to the status information configuration.

[0204] The status information configuration specifically includes at least one of the following:

[0205] a. Information about reporting resources used to indicate status information.

[0206] The UE obtains reporting resources and / or the control node provides reporting resources, and the UE indicates status information in an explicit or implicit manner on the reporting resources.

[0207] Optionally, for the reported resource, the status information satisfies at least one of the following:

[0208] i. Different types of status information correspond to different reporting resources.

[0209] For example, the first status information corresponds to the first reporting resource, and the second status information corresponds to the second reporting resource.

[0210] Optionally, if the second status information is transmitted, different reporting resources corresponding to the first status information are released for a period of time or permanently, or vice versa.

[0211] ii. Status information of different contents corresponds to different reporting resources.

[0212] For example, status information related to preemption corresponds to the first reporting resource, status information related to feedback information corresponds to the second reporting resource, status information related to SL decoding status corresponds to the third reporting resource, status information related to ACK corresponds to the fourth reporting resource, and status information related to NACK corresponds to the fifth reporting resource.

[0213] Optionally, if the preemption and / or acquisition of relevant status information fails, at least one of the following is released for a period of time and / or permanently:

[0214] Reporting resources corresponding to status information related to feedback information;

[0215] Reporting resources corresponding to status information related to SL decoding status;

[0216] Reporting resources corresponding to ACK-related status information;

[0217] Reporting resources corresponding to status information related to NACK.

[0218] iii. The status information corresponding to different sidelink resources corresponds to different reporting resources.

[0219] iv. The status information corresponding to different types of sidelink resources corresponds to different reporting resources.

[0220] For example, the status information of the PSSCH corresponds to the first reporting resource, and the status information of the PSFCH corresponds to the second reporting resource.

[0221] The reporting resource is a resource used to indicate status information.

[0222] b. Status information reporting method.

[0223] i. Report status information for different sidelink resources according to sidelink resource type, or report it uniformly.

[0224] That is, whether to report status information for different types of channel side link resources separately or to report one unified report.

[0225] ii. Report according to the status information type.

[0226] That is, whether only the first status information is reported, or only the second status information is reported, or both the first and second status information can be reported.

[0227] c. Status information content.

[0228] For example, what content status information can be reported. The content of the reported status information includes at least one of the following:

[0229] Status information related to preemption;

[0230] Status information related to feedback information;

[0231] Status information related to SL decoding status;

[0232] Status information related to ACK;

[0233] Status information related to NACK.

[0234] In the embodiment of the present application, by determining the status information corresponding to the sidelink resources in the unlicensed frequency band and indicating the status information, it is ensured that the control node and the terminal have consistent understanding, thereby improving resource utilization.

[0235] Figure 3This is a second flow chart of the information transmission method according to an embodiment of the present application. Figure 3 As shown, an embodiment of the present application provides an information transmission method, the execution subject of which is a target node, such as a control node, and the method includes:

[0236] The target node obtains status information; the status information is indicated to the target node after the terminal determines the status information corresponding to the sidelink resource of the unlicensed frequency band; the target node includes a control node and / or a target terminal.

[0237] Monitoring the sidelink resources in the unlicensed frequency band can be performed by UE1 or UE2. Sending status information to the control node can be performed by UE1, UE2, or UE3. For details, please refer to the description of the application scenario in the above embodiment, which will not be repeated here.

[0238] The control node may obtain the status information in a display manner, for example, directly receiving the status information sent by the target user equipment.

[0239] The control node may also obtain the status information implicitly. For example, the control node allocates reporting resources to the user equipment. If the control node does not detect relevant content on the reporting resources, it indicates that the user equipment is successful, that is, the control node obtains the status information implicitly.

[0240] a. If the first state information is obtained, the control node determines at least one of the following:

[0241] i. At least part of the first sidelink chain resources are available.

[0242] ii. At least part of the first sidelink resources are available to other terminals.

[0243] For example, (UE) obtains the right to use at least part of the first sidelink resources (or can use the first sidelink resources).

[0244] (UE) preemption and / or channel access are at least partially successful in the first sidelink resource.

[0245] iii. At least part of the first sidelink resources are idle.

[0246] iv. At least part of the first sidelink resources is idle for other terminals.

[0247] v. The transmission on at least a portion of the first sidelink resources is successful.

[0248] vi. Determine whether the first sidelink resource is idle and / or available based on the feedback information, or determine at least one of the following for the first sidelink resource:

[0249] Get success or failure;

[0250] Preemption success or failure;

[0251] Channel access success or failure;

[0252] The transfer is either successful or failed.

[0253] For example, the first status information is information on SL HARQ-ACK or PSFCH, and success or failure is determined based on the information.

[0254] b. If the second state information is obtained, the control node determines at least one of the following:

[0255] i. At least part of the second sidelink resources are unavailable.

[0256] ii. At least part of the second sidelink resources are unavailable to other terminals.

[0257] For example, (UE) does not obtain the right to use at least part of the second sidelink resources (or cannot use the second sidelink resources).

[0258] (UE) fails to preempt and / or channel access at least partially in the second side-link resource.

[0259] iii. At least part of the second sidelink resources are busy.

[0260] iv. At least part of the second sidelink resources is busy for other terminals.

[0261] v. Transmission on at least a portion of the second sidelink resources fails or is not used for transmission.

[0262] For at least one item in iv, the control node may continue to indicate new sidelink resources to the UE.

[0263] a. Optionally, after time 1 has passed since the second state information, new sidelink resources are indicated to the first terminal.

[0264] Wherein, time 1 includes the processing time of the second state information and / or the time of indicating the new sidelink resource, and time 1 includes at least one of the following:

[0265] One or more time slots;

[0266] One or more symbols;

[0267] One or more subframes;

[0268] One or more frames;

[0269] One or more cycles.

[0270] b. Optionally, at time 2 before the reporting resource of the second state information, indicate new sidelink resources to the first terminal.

[0271] Time 2 includes the processing time of the second state information and / or the time of indicating the new sidelink resource, and time 2 includes at least one of the following:

[0272] One or more slots;

[0273] One or more symbols;

[0274] One or more subframes;

[0275] One or more frames;

[0276] One or more cycles.

[0277] Optionally, if the first state information is further obtained subsequently, and / or the second state information is not obtained, the control node and / or the UE considers that the new side link resource is invalid and / or discarded, that is, the UE no longer needs to monitor the new side link resource.

[0278] Optionally, further explanation is required:

[0279] a. Whether the sidelink resources mentioned in the above embodiments are idle and / or available and / or busy and / or unavailable refers to:

[0280] i. Whether the sidelink resources are idle and / or available and / or busy and / or unavailable for its own SL transmission (for example, although it is detected that they are occupied by the SL system or other SL UEs, the UE believes that they are available for its SL transmission and can directly perform SL transmission).

[0281] ii. Alternatively, whether the sidelink resources are idle and / or available and / or busy and / or unavailable for the SL system (e.g., detected as not being used by any UE, they may be used by the UE and / or other UEs in the SL system).

[0282] iii. Alternatively, whether the sidelink resources are idle and / or available and / or busy and / or unavailable for any system (e.g., Uu system and / or SL system) (e.g., if detected not to be used by any UE, then they may be used by the UE and / or other UEs in the SL system and / or Uu system).

[0283] b. The acquisition or failure to acquire the right to use the sidelink resource mentioned herein refers to:

[0284] i. Acquire or fail to acquire the right to use the sidelink resource for its own SL transmission.

[0285] ii. Alternatively, obtaining or not obtaining the right to use the sidelink resources for the SL system.

[0286] iii. Alternatively, the right to use the sidelink resources for any system (eg, Uu system and / or SL system) is obtained or not obtained.

[0287] c. The success or failure of preemption and / or channel access to sidelink resources refers to:

[0288] i. For the UE's own SL transmission.

[0289] ii. Or, for SL system.

[0290] iii. Or, for any system (eg, Uu system and or SL system).

[0291] d. The transmission or inability to transmit on the sidelink resources mentioned refers to:

[0292] i. For the UE's own SL transmission.

[0293] ii. Or, for SL system.

[0294] iii. Or, for any system (eg, Uu system and or SL system).

[0295] e. The success or failure of transmission on the sidelink resource mentioned refers to:

[0296] i. For the UE's own SL transmission.

[0297] ii. Or, for SL system.

[0298] iii. Or, for any system (eg, Uu system and or SL system).

[0299] Optionally, the resource for displaying or implicitly indicating status information in the above embodiment includes at least one of the following:

[0300] a.PUCCH;

[0301] b.PUSCH;

[0302] c.PSFCH;

[0303] d.PSSCH.

[0304] For example, when the control node is a UE, the resource indicating the state information is a PSSCH.

[0305] e.PSCCH.

[0306] For example, when the control node is a UE, the resource indicating the state information is a PSCCH.

[0307] Optionally, the method for acquiring the resource for displaying or implicitly indicating the status information in the above embodiment includes at least one of the following:

[0308] a. Control node allocation and / or scheduling;

[0309] b. Predefined;

[0310] c. Pre-configuration;

[0311] d. UE obtains it by itself;

[0312] e. Other UEs are scheduled or recommended to the UE.

[0313] Optionally, the control node operates in a licensed frequency band or a non-shared frequency band.

[0314] Optionally, UE1 and / or UE2 and / or other UEs transmit on sidelink resources.

[0315] For example, the control node may instruct UE1 to monitor whether the sidelink resources are idle, and if idle, schedule UE2 or other UEs to transmit on the sidelink resources.

[0316] The above embodiment is further described below with several specific examples:

[0317] Case 1: PSCCH and / or PSSCH failed and / or busy.

[0318] The control node scheduling node indicates PSCCH and / or PSSCH to UE1, and UE1 monitors the side link resources corresponding to PSCCH and / or PSSCH and attempts to preempt and / or access the channel.

[0319] a. Assume that the sidelink resource preemption and / or channel access fails, or that the sidelink resource is monitored to be busy.

[0320] UE1 sends the second status information to the control node.

[0321] 1. In one case, the second control information is NACK.

[0322] After receiving NACK, the control node can indicate the new PSCCH and / or PSSCH to UE1

[0323] 2. In one case, the second control information indicates that the sidelink resource preemption and / or channel access failed.

[0324] After receiving the information, the control node may indicate a new PSCCH and / or PSSCH to UE1.

[0325] b. Assume that the sidelink resource preemption and / or channel access fails, or that the sidelink resource is monitored to be busy.

[0326] UE2 sends the second status information to the control node.

[0327] 1. For example, if the FBE method is used at this time, it can be assumed that the monitoring results of the sidelink resource of UE1 and UE2 are the same. For example, if UE1 determines that the sidelink resource channel is busy, UE2 will also determine that the sidelink resource channel is busy. Therefore, UE2 can indicate the status information.

[0328] 2. In one case, the second control information is NACK.

[0329] After receiving NACK, the control node can indicate the new PSCCH and / or PSSCH to UE1

[0330] 3. In one case, the second control information indicates that the sidelink resource preemption and / or channel access failed.

[0331] After receiving the information, the control node may indicate a new PSCCH and / or PSSCH to UE1.

[0332] Case 2: PSCCH and / or PSSCH successful and / or idle.

[0333] The control node scheduling node indicates PSCCH and / or PSSCH to UE1, and UE1 monitors the side link resources corresponding to PSCCH and / or PSSCH and attempts to preempt and / or access the channel.

[0334] It is assumed that the side link resource preemption and / or channel access is successful, or that it is monitored that the side link resource is idle.

[0335] UE1 sends the second status information to the control node.

[0336] 1. In one case, the second control information is ACK.

[0337] 2. In one case, the second control information indicates that the sidelink resource preemption and / or channel access is successful.

[0338] 3. In one case, the second control information is the SL HARQ-ACK information corresponding to the PSCCH and / or PSSCH or the information on the corresponding PSFCH.

[0339] b. Assume that the sidelink resource preemption and / or channel access is successful, or that the sidelink resource is detected to be idle.

[0340] UE2 sends the second status information to the control node.

[0341] 1. For example, if the FBE method is used at this time, it can be assumed that the monitoring results of the sidelink resource of UE1 and UE2 are the same. For example, if UE1 determines that the sidelink resource is busy, UE2 will also determine that the sidelink resource is busy. Therefore, UE2 can indicate the status information.

[0342] 2. In one case, the second control information is ACK.

[0343] 3. In one case, the second control information indicates that the sidelink resource preemption and / or channel access is successful.

[0344] 4. In one case, the second control information is the SL HARQ-ACK information corresponding to the PSCCH and / or PSSCH or the information on the corresponding PSFCH.

[0345] If the information on the SL HARQ-ACK or PSFCH is NACK, it means that although the preemption is successful, UE2 fails to decode the message. At this time, UE2 sends NACK to the control node. After receiving the NACK, the control node can indicate a new PSCCH and / or PSSCH to UE1.

[0346] Case 3: PSCCH and / or PSSCH succeed and / or are idle, PSFCH fails.

[0347] The control node scheduling node indicates PSCCH and / or PSSCH and / or PSFCH to UE1, and UE1 monitors the side link resources corresponding to PSCCH and / or PSSCH and / or PSFCH, and attempts to preempt and / or access the channel.

[0348] It is assumed that the side link resource preemption and / or channel access corresponding to PSCCH and / or PSSCH are successful, or the side link resources corresponding to PSCCH and / or PSSCH are monitored to be idle; but the side link resource preemption and / or channel access corresponding to PSFCH fails, or the side link resources corresponding to PSFCH are busy.

[0349] UE1 sends the second status information to the control node.

[0350] 1. In one case, the second control information is NACK.

[0351] 2. In one case, the second control information indicates that the side link resource preemption and / or channel access corresponding to the PSFCH has failed.

[0352] b. Assume that the side link resource preemption and / or channel access corresponding to the PSCCH and / or PSSCH is successful, or that the side link resources corresponding to the PSCCH and / or PSSCH are monitored to be idle; but the side link resource preemption and / or channel access corresponding to the PSFCH fails, or that the side link resources corresponding to the PSFCH are busy.

[0353] UE2 sends the second status information to the control node.

[0354] 1. For example, if the FBE method is used at this time, it can be assumed that the sidelink resource preemption and / or channel monitoring results of UE1 and UE2 are the same. For example, if UE1 determines that the sidelink resource channel is busy, UE2 will also determine that the sidelink resource is busy, so UE2 can indicate the status information.

[0355] 2. In one case, the second control information is NACK.

[0356] 3. In one case, the second control information indicates that the side link resource preemption and / or channel access corresponding to the PSFCH has failed.

[0357] Furthermore, the SL HARQ-ACK corresponding to the PSCCH and / or PSSCH is also indicated.

[0358] The advantage of this is that UE2 is directly informed of whether PSCCH and / or PSSCH decoding is successful and whether PSFCH resources have not been grabbed. In the case of successful decoding, the base station does not need to schedule retransmission.

[0359] Example 4: Extended to be used between two Mode 2 UEs.

[0360] 1. UE3 explicitly or implicitly indicates the sidelink resources to UE1.

[0361] a. Through at least one indication information of PSCCH, SCI, PSFCH, preamble, etc.

[0362] For example, if the SCI indicates the PSSCH resource, UE2 needs to transmit on the PSSCH indicated by the SCI sent by UE1, but before that it needs to monitor whether the resource is idle and available (that is, UE1 sends a similar 1st SCI to seize the channel and reserve resources, and after receiving it, UE2 actually transmits the PSSCH according to the SCI instruction).

[0363] b. The implicit indication may be that there is a correspondence between the indication information and the sidelink resource.

[0364] For example, there is a corresponding relationship between PSFCH and PSSCH resources. UE2 needs to transmit on the PSSCH resource corresponding to the PSFCH sent by UE1, but before that, it needs to monitor whether the resource is idle and available.

[0365] 2. UE1 monitors and / or transmits according to the instruction information.

[0366] 3. Optionally, UE1 and / or UE2 indicates the status information to UE3.

[0367] Example 5:

[0368] Case 1: For HARQ-based TB transmission, if an ACK-NACK-based feedback method is used, where the so-called ACK-NACK-based method refers to feedback of ACK upon successful decoding and NACK upon failure, then if the UE cannot use some or all of the allocated resources or sidelink resources due to a Clear Channel Assessment (CCA) or eCCA failure, the status information is determined to be NACK.

[0369] Case 2: For HARQ-based TB transmission, if a NACK-only method is used for feedback, where the NACK-only method does not provide feedback when decoding is successful, but provides NACK feedback when decoding fails. If, due to a CCA or eCCA failure, the UE cannot use some or all of the allocated resources or sidelink resources, the status information is determined to be NACK.

[0370] In the embodiment of the present application, by determining the status information corresponding to the sidelink resources in the unlicensed frequency band and indicating the status information, it is ensured that the control node and the terminal have consistent understanding, thereby improving resource utilization.

[0371] Figure 4 This is one of the structural diagrams of the information transmission device according to the embodiment of the present application. Figure 4 As shown, an embodiment of the present application provides an information transmission device, including:

[0372] The first determining module 401 is configured to determine status information corresponding to sidelink resources in an unlicensed frequency band;

[0373] The first indication module 402 is configured to indicate the status information to a target node; the target node includes a control node and / or a target terminal.

[0374] Optionally, it also includes:

[0375] A first acquisition module, configured to acquire first indication information;

[0376] The first indication information is used to indicate at least one of the following:

[0377] the sidelink chain resources;

[0378] listening parameters of the sidelink resource;

[0379] Listening to the sidelink resource.

[0380] Optionally, it also includes:

[0381] The second acquisition module is used to obtain status information configuration;

[0382] The status information configuration includes at least one of the following:

[0383] Information used to indicate reporting resources for status information;

[0384] Status information reporting method;

[0385] Status information content.

[0386] The information transmission device in the embodiments of the present application can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal can include but is not limited to the types of terminal 11 listed above, and the non-mobile terminal can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), an ATM or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.

[0387] The information transmission device provided in the embodiment of the present application can achieve Figure 2 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0388] Figure 5 This is the second structural diagram of the information transmission device according to the embodiment of the present application. Figure 5 As shown, an embodiment of the present application provides an information transmission device, including:

[0389] The third acquisition module 501 is used to obtain status information; the status information is indicated to the target node after the terminal determines the status information corresponding to the sidelink resource of the unlicensed frequency band; the target node includes a control node and / or a target terminal.

[0390] Optionally, it also includes:

[0391] A first sending module, configured to send first indication information;

[0392] The first indication information is used to indicate at least one of the following:

[0393] the sidelink chain resources;

[0394] listening parameters of the sidelink resource;

[0395] Listening to the sidelink resource.

[0396] Optionally, it also includes:

[0397] A second sending module is used to send status information configuration;

[0398] The status information configuration includes at least one of the following:

[0399] Information used to indicate reporting resources for status information;

[0400] Status information reporting method;

[0401] Status information content.

[0402] Optionally, the method further includes: a second determining module;

[0403] When the state information includes the first state information, the second determining module is configured to determine at least one of the following:

[0404] At least a portion of the first sidelink resources are available;

[0405] At least some of the first sidelink resources are idle;

[0406] At least part of the first sidelink resources are available to other terminals;

[0407] At least part of the first sidelink resources are idle for other terminals;

[0408] transmission on at least a portion of the first sidelink resources is successful;

[0409] The first state information is state information corresponding to the first side-link resource; and the first side-link resource is at least part of the side-link resource.

[0410] Optionally, a third determining module is further included;

[0411] When the state information includes the second state information, the third determining module is configured to determine at least one of the following:

[0412] At least some of the second sidelink resources are unavailable;

[0413] At least some of the second sidelink resources are busy;

[0414] At least part of the second sidelink resources are unavailable to other terminals;

[0415] At least a portion of the second sidelink resources are busy for other terminals;

[0416] At least a portion of the second sidelink resources are not used for transmission;

[0417] Transmission on at least a portion of the second sidelink resources fails.

[0418] Optionally, a second indication module is further included;

[0419] After the second state information, the second indication module is used to indicate the third sidelink resource to the first terminal.

[0420] Optionally, a third indication module is further included;

[0421] Before reporting the second state information, the third indication module is used to indicate the third sidelink resource to the first terminal.

[0422] The information transmission device in the embodiments of the present application can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal can include but is not limited to the types of terminal 11 listed above, and the non-mobile terminal can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), an ATM or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.

[0423] The information transmission device provided in the embodiment of the present application can achieve Figure 3 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0424] Figure 6 is a schematic diagram of the structure of the communication device of the embodiment of the present application, such as Figure 6As shown, the embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and a program or instruction stored in the memory 602 and executable on the processor 601. For example, when the communication device 600 is a terminal, the program or instruction, when executed by the processor 601, implements the various processes of the above-mentioned information transmission method embodiment and can achieve the same technical effect. When the communication device 600 is a network-side device, the program or instruction, when executed by the processor 601, implements the various processes of the above-mentioned information transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0425] An embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the processor is configured to determine status information corresponding to sidelink resources in an unlicensed frequency band and indicate the status information to a target node; the target node includes a control node and / or a target terminal. This terminal embodiment corresponds to the aforementioned method embodiment in which the execution subject is a terminal. The various implementation processes and implementation methods of the aforementioned method embodiment are applicable to this terminal embodiment and can achieve the same technical effects.

[0426] Specifically, Figure 7 This is a schematic diagram of the hardware structure of the terminal in the embodiment of the present application. Figure 7 As shown, the terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and at least some of the components of the processor 710.

[0427] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 710 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0428] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0429] In this embodiment of the present application, the radio frequency unit 701 receives downlink data from the network-side device and transmits it to the processor 710 for processing. Furthermore, the radio frequency unit 701 transmits uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0430] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, at least one application program or instruction required for a function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a high-speed random access memory and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0431] Processor 710 may include one or more processing units. Optionally, processor 710 may integrate an application processor and a modem processor. The application processor primarily processes the operating system, user interface, and application programs or instructions, while the modem processor primarily processes wireless communications, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 710.

[0432] The processor 710 is configured to determine status information corresponding to sidelink resources in an unlicensed frequency band;

[0433] It is also used to indicate the status information to a target node; the target node includes a control node and / or a target terminal.

[0434] Optionally, it also includes:

[0435] Obtaining first indication information;

[0436] The first indication information is used to indicate at least one of the following:

[0437] the sidelink chain resources;

[0438] listening parameters of the sidelink resource;

[0439] Listening to the sidelink resource.

[0440] Optionally, the status information includes at least one of the following:

[0441] first state information corresponding to a first sidelink resource; the first sidelink resource being at least a portion of the sidelink resources;

[0442] Second state information corresponding to a second sidelink resource; the second sidelink resource is at least a part of the sidelink resource.

[0443] Optionally, the first status information is used to indicate at least one of the following:

[0444] The first sidelink resource is available;

[0445] The first sidelink resource is idle;

[0446] The first sidelink resource is available to other terminals;

[0447] The first sidelink resource is idle for other terminals;

[0448] The transmission on the first sidelink resource is successful;

[0449] ACK;

[0450] Feedback information;

[0451] SL decoding status.

[0452] Optionally, the second status information is used to indicate at least one of the following:

[0453] The second sidelink resource is unavailable;

[0454] The second sidelink resource is busy;

[0455] The second sidelink resource is unavailable to other terminals;

[0456] The second sidelink resource is busy for other terminals;

[0457] The transmission on the second sidelink resource fails;

[0458] No transmission of the second sidelink resource is detected;

[0459] No feedback corresponding to the transmission of the second sidelink resource is detected;

[0460] The transmission of the second sidelink resource is canceled;

[0461] The feedback corresponding to the transmission of the second sidelink resource is cancelled;

[0462] NACK;

[0463] Feedback information;

[0464] SL decoding status.

[0465] Optionally, the second sidelink resource satisfies at least one of the following conditions:

[0466] Each second sidelink resource has at least one associated resource for indicating second state information;

[0467] The N1th of the second side-link resources, or the M1th of at least part of the second side-link resources, has at least one associated resource for indicating second state information;

[0468] N2 of the second side link resources, or M2 of at least some of the second side link resources in the second side link resources, have at least one associated leading resource for indicating the second side link resource, and N1, N2, M1 and M2 are all positive integers.

[0469] Optionally, the step of indicating the status information to other nodes includes:

[0470] Indicating the first status information to the control node, wherein indicating the first status information to the control node includes at least one of the following:

[0471] sending the first status information;

[0472] No status information is sent;

[0473] The second status information is not sent.

[0474] Optionally, the step of indicating the status information to other nodes includes:

[0475] Indicating the second status information to the control node, wherein indicating the second status information to the control node includes at least one of the following:

[0476] sending the second status information;

[0477] No status information is sent;

[0478] The first status information is not sent.

[0479] Optionally, the step of the terminal indicating the status information to the target node includes:

[0480] Indicating the first status information to the control node under a first preset condition, where the first preset condition includes at least one of the following:

[0481] At least some of the sidelink resources are available;

[0482] At least some of the sidelink resources are idle;

[0483] At least part of the sidelink resources are available to other terminals;

[0484] At least part of the sidelink resources are idle for other terminals;

[0485] Transmission is performed on at least a portion of the sidelink resources;

[0486] Transmission on at least a portion of the sidelink resources is successful.

[0487] Optionally, the step of the terminal indicating the status information to the target node includes:

[0488] Indicating the second state information to the control node under a second preset condition, where the second preset condition includes at least one of the following:

[0489] At least some of the sidelink resources are unavailable;

[0490] At least some of the sidelink resources are busy;

[0491] At least part of the sidelink resources are unavailable to other terminals;

[0492] At least some of the sidelink resources are busy for other terminals;

[0493] At least a portion of the sidelink resources are not used for transmission;

[0494] a transmission failure on at least a portion of the sidelink resources;

[0495] The first terminal does not receive the expected feedback;

[0496] The feedback received by the first terminal is NACK.

[0497] Optionally, the status information includes at least one of the following:

[0498] Status information corresponding to any or all types of sidelink resources;

[0499] The status information corresponding to different types of sidelink resources.

[0500] Optionally, the step of the terminal indicating the status information to the target node includes:

[0501] When it is determined that at least one of the following conditions is met, the status information is indicated to the control node:

[0502] The control node is configured with a semi-static resource for transmitting the status information;

[0503] The control node schedules the first terminal to transmit the status information;

[0504] At least some of the sidelink resources are available;

[0505] At least some of the sidelink resources are idle;

[0506] At least part of the sidelink resources are available to other terminals;

[0507] At least part of the sidelink resources are idle for other terminals;

[0508] Transmission is performed on at least a portion of the sidelink resources;

[0509] transmission on at least a portion of the sidelink resources is successful;

[0510] Received ACK;

[0511] Successful decoding of transmissions on at least a portion of the sidelink resources;

[0512] The feedback information corresponding to the transmission on at least part of the sidelink resources is ACK;

[0513] The state information includes first state information.

[0514] Optionally, it also includes:

[0515] Get status information configuration;

[0516] The status information configuration includes at least one of the following:

[0517] Information used to indicate reporting resources for status information;

[0518] Status information reporting method;

[0519] Status information content.

[0520] Optionally, the step of the terminal indicating the status information to other control nodes includes:

[0521] The terminal indicates the status information to other control nodes by reporting resources;

[0522] The reporting resource meets at least one of the following conditions:

[0523] Different types of status information correspond to different reporting resources;

[0524] Status information of different contents corresponds to different reporting resources;

[0525] The status information corresponding to different sidelink resources corresponds to different reporting resources;

[0526] The status information corresponding to different types of sidelink resources corresponds to different reporting resources.

[0527] In the embodiment of the present application, by determining the status information corresponding to the sidelink resources in the unlicensed frequency band and indicating the status information, it is ensured that the control node and the terminal have consistent understanding, thereby improving resource utilization.

[0528] This embodiment of the present application also provides a network-side device, including a processor and a communication interface, wherein the processor is configured to obtain status information; the status information is status information corresponding to the sidelink resources in the unlicensed frequency band determined by the user equipment after monitoring the sidelink resources. This network-side device embodiment corresponds to the above-mentioned method embodiment in which the execution subject is the target node. The various implementation processes and implementation methods of the above-mentioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0529] Specifically, Figure 8 This is a schematic diagram of the hardware structure of the network side device in the embodiment of the present application. Figure 8 As shown, an embodiment of the present application further provides a network-side device. The network device 800 includes an antenna 81, a radio frequency device 82, and a baseband device 83. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information via the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and then sends it through the antenna 81.

[0530] The frequency band processing device may be located in the baseband device 83 . The method executed by the network-side device in the above embodiment may be implemented in the baseband device 83 . The baseband device 83 includes a processor 84 and a memory 85 .

[0531] The baseband device 83 may include, for example, at least one baseband board on which a plurality of chips are arranged, such as Figure 8 As shown, one of the chips is, for example, a processor 84, which is connected to a memory 85 to call a program in the memory 85 and execute the network device operations shown in the above method embodiment.

[0532] The baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82 . The interface may be, for example, a common public radio interface (CPRI).

[0533] The network side device of the embodiment of the present invention further includes: instructions or programs stored in the memory 85 and executable on the processor 84, and the processor 84 calls the instructions or programs in the memory 85 to execute Figure 5 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0534] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned information transmission method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0535] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk.

[0536] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0537] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0538] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device comprising a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0539] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course 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 application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0540] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An information transmission method, characterized in that: include: The terminal determines status information corresponding to the sidelink resources in the unlicensed frequency band; The terminal indicates the status information to the target node; The target node includes a control node; The state information includes second state information corresponding to the second sidelink resource; the second sidelink resource is all the sidelink resources; In a case where all of the sidelink resources are unavailable or access fails, the second status information indicates NACK.

2. The information transmission method according to claim 1, wherein: When at least part of the sidelink resources is unavailable or access fails and the terminal is unable to transmit the second sidelink resources, the second status information indicates NACK.

3. The information transmission method according to claim 1, wherein: Also includes: Obtaining first indication information; The first indication information is used to indicate at least one of the following: the sidelink chain resources; listening parameters of the sidelink resource; Listening to the sidelink resource.

4. The information transmission method according to claim 1, wherein: The status information also includes First state information corresponding to a first side link resource; the first side link resource is at least a part of the side link resource.

5. The information transmission method according to claim 4, characterized in that: The first status information is used to indicate at least one of the following: The first sidelink resource is available; The first sidelink resource is idle; The first sidelink resource is available to other terminals; The first sidelink resource is idle for other terminals; The transmission on the first sidelink resource is successful; ACK; Feedback information; SL decoding status.

6. The information transmission method according to claim 1, wherein: The second status information is further used to indicate at least one of the following: The second sidelink resource is unavailable; The second sidelink resource is busy; The second sidelink resource is unavailable to other terminals; The second sidelink resource is busy for other terminals; The transmission on the second sidelink resource fails; No transmission of the second sidelink resource is detected; No feedback corresponding to the transmission of the second sidelink resource is detected; The transmission of the second sidelink resource is canceled; The feedback corresponding to the transmission of the second sidelink resource is cancelled; Feedback information; SL decoding status.

7. The information transmission method according to claim 1, wherein: The second sidelink resource satisfies at least one of the following conditions: Each second sidelink resource has at least one associated resource for indicating second state information; The N1th of the second side-link resources, or the M1th of at least part of the second side-link resources, has at least one associated resource for indicating second state information; N2 of the second side link resources, or M2 of at least some of the second side link resources in the second side link resources, have at least one associated leading resource for indicating the second side link resource, and N1, N2, M1 and M2 are all positive integers.

8. The information transmission method according to claim 4, characterized in that: The step of indicating the state information to the target node includes: Indicating the first status information to the control node, wherein indicating the first status information to the control node includes at least one of the following: sending the first status information; No status information is sent; The second status information is not sent.

9. The information transmission method according to claim 4, characterized in that: The step of indicating the state information to the target node includes: Indicating the second status information to the control node, wherein indicating the second status information to the control node includes at least one of the following: sending the second status information; No status information is sent; The first status information is not sent.

10. The information transmission method according to claim 4 or 8, characterized in that: The step of the terminal indicating the status information to the target node includes: Indicating the first status information to the control node under a first preset condition, where the first preset condition includes at least one of the following: At least some of the sidelink resources are available; At least some of the sidelink resources are idle; At least part of the sidelink resources are available to other terminals; At least part of the sidelink resources are idle for other terminals; Transmission is performed on at least a portion of the sidelink resources; Transmission on at least a portion of the sidelink resources is successful.

11. The information transmission method according to claim 1 or 9, characterized in that: The step of the terminal indicating the status information to the target node includes: Indicating the second state information to the control node under a second preset condition, where the second preset condition includes at least one of the following: At least some of the sidelink resources are busy; At least part of the sidelink resources are unavailable to other terminals; At least some of the sidelink resources are busy for other terminals; At least a portion of the sidelink resources are not used for transmission; a transmission failure on at least a portion of the sidelink resources; The first terminal does not receive the expected feedback; The feedback received by the first terminal is NACK.

12. The information transmission method according to claim 1, wherein: The status information includes at least one of the following: Status information corresponding to any or all types of sidelink resources; The status information corresponding to different types of sidelink resources.

13. The information transmission method according to claim 1, wherein: The step of the terminal indicating the status information to the target node includes: When it is determined that at least one of the following conditions is met, the status information is indicated to the control node: The control node is configured with a semi-static resource for transmitting the status information; The control node schedules the first terminal to transmit the status information; At least some of the sidelink resources are available; At least some of the sidelink resources are idle; At least part of the sidelink resources are available to other terminals; At least part of the sidelink resources are idle for other terminals; Transmission is performed on at least a portion of the sidelink resources; transmission on at least a portion of the sidelink resources is successful; Received ACK; Successful decoding of transmissions on at least a portion of the sidelink resources; The feedback information corresponding to the transmission on at least part of the sidelink resources is ACK; The state information includes first state information.

14. The information transmission method according to claim 1, wherein: Also includes: Get status information configuration; The status information configuration includes at least one of the following: Information used to indicate reporting resources for status information; Status information reporting method; Status information content.

15. The information transmission method according to claim 1, wherein: The step of the terminal indicating the status information to other control nodes includes: The terminal indicates the status information to other control nodes by reporting resources; The reporting resource meets at least one of the following conditions: Different types of status information correspond to different reporting resources; Status information of different contents corresponds to different reporting resources; The status information corresponding to different sidelink resources corresponds to different reporting resources; The status information corresponding to different types of sidelink resources corresponds to different reporting resources.

16. An information transmission method, characterized in that: include: The target node obtains status information; the status information is indicated to the target node by the terminal after determining the status information corresponding to the sidelink resource of the unlicensed frequency band; The target node includes a control node; The state information includes second state information corresponding to the second sidelink resource; the second sidelink resource is all the sidelink resources; In a case where all of the sidelink resources are unavailable or access fails, the second status information indicates NACK.

17. The information transmission method according to claim 16, characterized in that: When at least part of the sidelink resources is unavailable or access fails and the terminal is unable to transmit the second sidelink resources, the second status information indicates NACK.

18. The information transmission method according to claim 16, wherein: Also includes: Sending first instruction information; The first indication information is used to indicate at least one of the following: the sidelink chain resources; listening parameters of the sidelink resource; Listening to the sidelink resource.

19. The information transmission method according to claim 16, wherein: Also includes: Send status information configuration; The status information configuration includes at least one of the following: Information used to indicate reporting resources for status information; Status information reporting method; Status information content.

20. The information transmission method according to claim 16, wherein: In a case where the state information includes first state information, at least one of the following is determined: At least a portion of the first sidelink resources are available; At least some of the first sidelink resources are idle; At least part of the first sidelink resources are available to other terminals; At least part of the first sidelink resources are idle for other terminals; transmission on at least a portion of the first sidelink resources is successful; The first state information is state information corresponding to the first side-link resource; and the first side-link resource is at least part of the side-link resource.

21. The information transmission method according to claim 16, wherein: In a case where the state information includes second state information, at least one of the following is determined: At least some of the second sidelink resources are unavailable; at least some of the second sidelink resources are busy; At least part of the second sidelink resources are unavailable to other terminals; At least a portion of the second sidelink resources are busy for other terminals; At least a portion of the second sidelink resources are not used for transmission; Transmission on at least a portion of the second sidelink resources fails.

22. The information transmission method according to claim 21, characterized in that: Also includes: After the second state information, a third sidelink resource is indicated to the first terminal.

23. The information transmission method according to claim 21, characterized in that: Also includes: Before reporting the second state information, indicating a third sidelink resource to the first terminal.

24. An information transmission device, characterized in that: include: A first determining module is used to determine status information corresponding to sidelink resources in an unlicensed frequency band; A first indication module, configured to indicate the status information to a target node; The target node includes a control node; The state information includes second state information corresponding to the second sidelink resource; the second sidelink resource is all the sidelink resources; When all the sidelink resources are unavailable or access fails, the second status information is used to indicate NACK.

25. The information transmission device according to claim 24, characterized in that Also includes: A first acquisition module, configured to acquire first indication information; The first indication information is used to indicate at least one of the following: the sidelink chain resources; listening parameters of the sidelink resource; Listening to the sidelink resource.

26. The information transmission device according to claim 24, characterized in that Also includes: The second acquisition module is used to obtain status information configuration; The status information configuration includes at least one of the following: Information used to indicate reporting resources for status information; Status information reporting method; Status information content.

27. An information transmission device, characterized in that: include: The third acquisition module is used to obtain status information; The state information is indicated to the target node by the terminal after determining the state information corresponding to the sidelink resource of the unlicensed frequency band; the target node includes a control node; The state information includes second state information corresponding to the second sidelink resource; the second sidelink resource is all the sidelink resources; When all the sidelink resources are unavailable or access fails, the second status information is used to indicate NACK.

28. The information transmission device according to claim 27, characterized in that Also includes: A first sending module, configured to send first indication information; The first indication information is used to indicate at least one of the following: the sidelink chain resources; listening parameters of the sidelink resource; Listening to the sidelink resource.

29. The information transmission device according to claim 27, characterized in that Also includes: A second sending module is used to send status information configuration; The status information configuration includes at least one of the following: Information used to indicate reporting resources for status information; Status information reporting method; Status information content.

30. The information transmission device according to claim 27, characterized in that Also includes: A second determination module; When the state information includes the first state information, the second determining module is configured to determine at least one of the following: At least a portion of the first sidelink resources are available; At least some of the first sidelink resources are idle; At least part of the first sidelink resources are available to other terminals; At least part of the first sidelink resources are idle for other terminals; transmission on at least a portion of the first sidelink resources is successful; The first state information is state information corresponding to the first side-link resource; and the first side-link resource is at least part of the side-link resource.

31. The information transmission device according to claim 27, characterized in that Also includes a third determination module; When the state information includes the second state information, the third determining module is configured to determine at least one of the following: At least some of the second sidelink resources are unavailable; At least some of the second sidelink resources are busy; At least part of the second sidelink resources are unavailable to other terminals; At least a portion of the second sidelink resources are busy for other terminals; At least a portion of the second sidelink resources are not used for transmission; Transmission on at least a portion of the second sidelink resources fails.

32. The information transmission device according to claim 31, characterized in that Also includes a second indication module; After the second state information, the second indication module is used to indicate the third sidelink resource to the first terminal.

33. The information transmission device according to claim 31, characterized in that Also included is a third indication module; Before reporting the second state information, the third indication module is used to indicate the third sidelink resource to the first terminal.

34. A terminal, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the information transmission method according to any one of claims 1 to 15.

35. A network side device, characterized in that: It includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the information transmission method according to any one of claims 16 to 23.

36. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the information transmission method according to any one of claims 1 to 15, or implements the steps of the information transmission method according to any one of claims 16 to 23.

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