Sidelink transmission processing method, sidelink transmission configuration method, apparatus, terminal and network side device

Abstract

The application discloses a kind of sidelink transmission processing method, sidelink transmission configuration method, device, terminal and network side equipment, belong to communication technical field, the sidelink transmission processing method of embodiment of the application includes: terminal determines the transmission granularity of physical sidelink first channel, the transmission granularity of physical sidelink first channel includes at least one of slot granularity and sub-slot granularity, and the physical sidelink first channel includes at least one of PSCCH and PSSCH;The terminal carries out sidelink resource selection, and the granularity of the sidelink resource selection includes at least one of slot granularity and sub-slot granularity;The terminal carries out sidelink transmission according to selected sidelink resource, and the granularity of the sidelink transmission includes at least one of slot granularity and sub-slot granularity.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a secondary link transmission processing method, a secondary link transmission configuration method, an apparatus, a terminal, and a network-side device. Background Technology

[0002] In related technologies, the transmission granularity of a sidelink (SL) is typically at the slot level. Building upon this, the concept of a sidelink transmission with a sub-slot level has been introduced. In this case, the start time of the sidelink transmission is no longer limited to the start position of a slot, but can also be the start position of a sub-slot. Compared to slot-level sidelink transmission, sub-slot-level sidelink transmission involves different processing methods. The sidelink transmission processing methods in related technologies are not applicable to different transmission granularities, which leads to poor sidelink transmission performance. Summary of the Invention

[0003] This application provides a secondary link transmission processing method, a secondary link transmission configuration method, an apparatus, a terminal, and a network-side device, which can solve the problem in related technologies that the secondary link transmission processing method cannot be applied to different transmission granularities, resulting in poor secondary link transmission performance.

[0004] Firstly, a secondary link transmission processing method is provided, the method comprising:

[0005] The terminal determines the transmission granularity of the first channel of the physical secondary link, wherein the transmission granularity of the first channel of the physical secondary link includes at least one of time slot granularity and sub-time slot granularity, and the first channel of the physical secondary link includes at least one of physical secondary link control channel PSCCH and physical secondary link shared channel PSSCH;

[0006] The terminal performs secondary link resource selection, and the granularity of the secondary link resource selection includes at least one of time slot granularity and sub-time slot granularity;

[0007] The terminal performs secondary link transmission based on the selected secondary link resources, and the granularity of the secondary link transmission includes at least one of time slot granularity and sub-time slot granularity.

[0008] Secondly, a secondary link transmission processing apparatus is provided, the apparatus comprising:

[0009] The first determining module is used to determine the transmission granularity of the first channel of the physical secondary link. The transmission granularity of the first channel of the physical secondary link includes at least one of time slot granularity and sub-time slot granularity. The first channel of the physical secondary link includes at least one of physical secondary link control channel PSCCH and physical secondary link shared channel PSSCH.

[0010] The selection module is used to select secondary link resources, wherein the granularity of the secondary link resource selection includes at least one of time slot granularity and sub-time slot granularity;

[0011] The transmission module is used by the terminal to perform secondary link transmission according to the selected secondary link resources, wherein the granularity of the secondary link transmission includes at least one of time slot granularity and sub-time slot granularity.

[0012] Thirdly, a secondary link transmission configuration method is provided, the method comprising:

[0013] The network-side device sends a first message, which includes first configuration information. The first configuration information is used to configure at least one of N and i, and the at least one of N and i is used by the terminal to determine the end position of the listening window.

[0014] Fourthly, a secondary link transmission configuration apparatus is provided, the apparatus comprising:

[0015] A first sending module is used to send a first message, the first message including first configuration information, the first configuration information being used to configure at least one of N and i, the at least one of N and i being used by the terminal to determine the end position of the listening window.

[0016] Fifthly, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0017] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface or the processor is configured to determine the transmission granularity of a first channel of a physical secondary link, the transmission granularity of the first channel of the physical secondary link including at least one of time slot granularity and sub-time slot granularity, the first channel of the physical secondary link including at least one of a physical secondary link control channel PSCCH and a physical secondary link shared channel PSSCH, the communication interface or the processor is further configured to perform secondary link resource selection, the granularity of the secondary link resource selection including at least one of time slot granularity and sub-time slot granularity, the communication interface or the processor is further configured to perform secondary link transmission according to the selected secondary link resources, the granularity of the secondary link transmission including at least one of time slot granularity and sub-time slot granularity.

[0018] In a seventh aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the third aspect.

[0019] Eighthly, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send a first message, the first message including first configuration information, the first configuration information being used to configure at least one of N and i, and the at least one of N and i being used by the terminal to determine the end position of the listening window.

[0020] A ninth aspect provides a communication system comprising: a terminal and a network-side device, wherein the terminal is configured to perform the steps of the method described in the first aspect, and the network-side device is configured to perform the steps of the method described in the third aspect.

[0021] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the third aspect.

[0022] Eleventhly, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being 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 third aspect.

[0023] In a twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the third aspect.

[0024] In this embodiment of the application, considering that the system can introduce sub-time slot granularity of secondary link transmission, the terminal can first determine the transmission granularity of the first channel of the physical secondary link during the secondary link transmission process, and then perform secondary link resource selection and secondary link transmission. In this way, the terminal can adopt an appropriate processing method to perform secondary link resource selection and secondary link transmission according to the transmission granularity of the first channel of the physical secondary link, thereby improving the secondary link transmission performance. Attached Figure Description

[0025] Figure 1 This is a block diagram of a wireless communication system provided in an embodiment of this application;

[0026] Figure 2 This is a flowchart of a secondary link transmission processing method provided in an embodiment of this application;

[0027] Figures 3 to 7 This is an example diagram showing the end position of the listening window provided in an embodiment of this application;

[0028] Figure 8This is a structural diagram of a secondary link transmission processing device provided in an embodiment of this application;

[0029] Figure 9 This is a flowchart of a secondary link transmission configuration method provided in an embodiment of this application;

[0030] Figure 10 This is a structural diagram of a secondary link transmission configuration device provided in an embodiment of this application;

[0031] Figure 11 This is a structural diagram of a communication device provided in an embodiment of this application;

[0032] Figure 12 This is a schematic diagram of the hardware structure of a terminal provided in an embodiment of this application;

[0033] Figure 13 This is a schematic diagram of the hardware structure of a network-side device provided in an embodiment of this application. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0035] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0036] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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 this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0037] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. Terminal 11 can be a mobile phone, tablet 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 device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment may also be referred to as radio access network equipment, radio access network (RAN), radio access network function, or radio access network unit. Access network equipment may include base stations, WLAN access points, or WiFi nodes, etc. Base stations may be referred to as Node B, evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B node, home evolved B node, Transmitting Receiving Point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0038] The following description, in conjunction with the accompanying drawings, details the secondary link transmission processing method, secondary link transmission configuration method, apparatus, terminal, network-side device, and storage medium provided in the embodiments of this application through some examples and application scenarios.

[0039] Please see Figure 2 , Figure 2 This is a flowchart of the secondary link transmission processing method provided in the embodiments of this application. For example... Figure 2 As shown, the secondary link transmission processing method includes the following steps:

[0040] Step 201: The terminal determines the transmission granularity of the first channel of the physical secondary link, wherein the transmission granularity of the first channel of the physical secondary link includes at least one of time slot granularity and sub-time slot granularity;

[0041] Step 202: The terminal performs secondary link resource selection, wherein the granularity of the secondary link resource selection includes at least one of time slot granularity and sub-time slot granularity;

[0042] Step 203: The terminal performs secondary link transmission according to the selected secondary link resources. The granularity of the secondary link transmission includes at least one of time slot granularity and sub-time slot granularity.

[0043] The granularity in this application embodiment can be understood as temporal granularity or time granularity, including time slot granularity with slot as the time unit and sub-time slot granularity with sub-slot as the time unit. A sub-slot time unit can be defined as a time transmission granularity smaller than that of a slot. The start position of a sub-slot can be a symbol within the slot, and the end position can also be a symbol within the slot. The length from the start to the end position of a sub-slot is less than the length of the slot. As an example, the end position of a sub-slot can be defined as the last symbol of the slot.

[0044] The aforementioned first channel of the physical sidelink includes at least one of the physical sidelink control channel (PSCCH) and the physical sidelink shared channel (PSSCH). For ease of description, the first channel of the physical sidelink can be represented as PSCCH / PSSCH.

[0045] In this embodiment of the application, considering that the system can introduce sub-time slot granularity of secondary link transmission, the terminal can first determine the transmission granularity of the first channel of the physical secondary link during the secondary link transmission process, and then perform secondary link resource selection and secondary link transmission. In this way, the terminal can adopt an appropriate processing method to perform secondary link resource selection and secondary link transmission according to the transmission granularity of the first channel of the physical secondary link, thereby improving the secondary link transmission performance.

[0046] The embodiments of this application involve multiple aspects such as secondary link resource selection, secondary link transmission, and secondary link feedback. The implementation methods for secondary link resource selection and secondary link transmission are described below.

[0047] In some embodiments, before the terminal performs secondary link resource selection, the method further includes:

[0048] The terminal determines the resource selection trigger time and the listening window. The interval between the end position of the listening window and the start position of the target time slot is greater than a preset value. The target time slot is the time slot where the resource selection trigger time is located.

[0049] The terminal detects the PSCCH before the end of the listening window to obtain the detection result;

[0050] The terminal performs secondary link resource selection, including:

[0051] Based on the detection results, the terminal performs secondary link resource selection after the resource selection trigger time.

[0052] In related technologies, there are two methods for allocating secondary link resources: one is based on base station scheduling, and the other is based on terminal autonomous selection. For the terminal autonomous selection method, the terminal selects available transmission resources from a (pre)configured resource pool. Before resource selection, the terminal performs channel monitoring, selects a set of resources with less interference based on the monitoring results, and then randomly selects resources for transmission from this set. The specific operation is as follows: After resource selection is triggered, the terminal first determines the resource selection window. The lower boundary of the resource selection window is T1 time after the resource selection trigger time, and the upper boundary is T2 time after the resource selection trigger time. T1 is autonomously selected by the terminal, and its value is no greater than Tproc,1 (resource selection processing time). T2 is the value selected by the terminal within the packet delay budget (PDB) of its transport block (TB) transmission, and T2 is no earlier than T1. Before selecting resources, the terminal needs to determine a candidate resource set. The number of candidate resource sub-channels is determined by the Medium Access Control (MAC) layer. The terminal compares the estimated Reference Signal Received Power (RSRP) measurement on the resources within the resource selection window with the corresponding RSRP threshold. If the RSRP is higher than the RSRP threshold, the resource is excluded and cannot be included in the candidate resource set. The remaining resources in the resource selection window after resource exclusion form the candidate resource set. The proportion of resources in the candidate resource set to resources in the resource selection window must be no less than x%. If it is less than x%, the RSRP threshold needs to be increased in increments (e.g., 3dB) and the above resource exclusion operation needs to be performed again until no less than x% of the resources can be selected. After the candidate resource set is determined, the terminal randomly selects transmission resources from the candidate resource set. The number of selected resources is determined by the MAC layer. During the above process, the terminal can estimate RSRP through PSCCH / PSSCH in the sensing window. The sensing window can be set before the Tproc,0 time when the resource selection triggers, where Tproc,0 is the processing time for the sensing result.

[0053] As mentioned earlier, the system can introduce sub-timeslot granularity secondary link transmission. Compared to timeslot granularity secondary link transmission, the terminal needs to process sub-timeslots more frequently. For example, if multiple sub-timeslots exist within a single timeslot, the number of PSCCHs for demodulating the sub-timeslots will increase, and the processing time of the PSCCHs will be delayed. In this embodiment, before the terminal performs secondary link resource selection, a suitable resource selection trigger time and listening window can be determined based on the transmission granularity of the first channel of the physical secondary link.

[0054] The resource selection trigger time determined by the terminal may be the start (or end) position of a time slot, or it may be the start (or end) position of a sub-time slot within a time slot. Correspondingly, the end position of the listening window determined by the terminal may be the start (or end) position of a time slot, or it may be the start (or end) position of a sub-time slot within a time slot. The terminal may determine the resource selection trigger time and the listening window at different times, or at the same time; this embodiment does not limit this.

[0055] In this implementation, the terminal can improve the transmission performance of the secondary link by determining the appropriate resource selection trigger time and listening window.

[0056] In some embodiments, the granularity of the secondary link resource selection is the time slot granularity;

[0057] The end position of the listening window includes any of the following:

[0058] The starting position of the i-th sub-time slot in the N-th time slot preceding the target time slot;

[0059] The end position of the i-th sub-slot PSCCH in the N-th time slot preceding the target time slot;

[0060] The starting position of the i-th sub-slot PSCCH in the N-th slot preceding the target slot;

[0061] The end position of the PSCCH of the Nth time slot preceding the target time slot;

[0062] Wherein, at least one of N and i is based on a protocol agreement or configured or pre-configured by the network; the sub-slot PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and the slot PSCCH is the PSCCH associated with the PSSCH transmitted at the slot granularity.

[0063] In related technologies, the terminal can detect the PSCCH before the end of the listening window. Since the system can introduce sub-time slot granularity secondary link transmission, the PSCCH before the end of the listening window can include both time slot PSCCH and sub-time slot PSCCH. When sub-time slot PSCCH is included, the processing time of the terminal for processing the sub-time slot PSCCH may be insufficient. For example, assuming that there is a sub-time slot PSCCH in the last one or more time slots of the listening window, the processing time of the terminal for processing the sub-time slot PSCCH may be insufficient due to the limitations of the terminal hardware.

[0064] Therefore, in this embodiment, the end position of the listening window can be appropriately adjusted to solve the problem of insufficient processing time for the terminal processing sub-slot PSCCH.

[0065] In some examples, the end position of the listening window can be the start position of the i-th sub-slot in the N-th time slot before the target time slot. Setting the end position of the listening window to the start position of the sub-slot ensures that the N-th time slot within the listening window does not contain the sub-slot PSCCH, thus solving the problem of insufficient processing time for the terminal to process the sub-slot PSCCH.

[0066] Assume that the end position of the listening window in the relevant technology is slot n-Tproc,0 (corresponding to...) Figure 3 If the position of A is such that it is either the start position of slot n-1 or the end position of slot n-2, then in this implementation, the end position of the listening window is slot n-Tproc,0' (corresponding to...). Figure 3 The position of A' in the middle), where Tproc,0' is defined based on the granularity of sub-slot, for example, Tproc,0' = Tproc,0 + number of sub-slots.

[0067] In other examples, the end position of the listening window can be the end position of the i-th sub-slot PSCCH in the N-th time slot before the target time slot. Setting the end position of the listening window to the end position of the i-th sub-slot PSCCH ensures that the N-th time slot within the listening window does not contain the (i+1)-th sub-slot PSCCH or any subsequent sub-slot PSCCHs, thus solving the problem of insufficient processing time for the terminal to process sub-slot PSCCHs.

[0068] Assume that the end position of the listening window in the relevant technology is slot n-Tproc,0 (corresponding to...) Figure 4If the position of A is such that it is either the start position of slot n-1 or the end position of slot n-2, then in this implementation, the end position of the listening window is the end position of the first sub-slot PSCCH in slot n-2 (corresponding to...). Figure 4 (The location of A' in the middle).

[0069] In other examples, the end position of the listening window can be the start position of the i-th sub-slot PSCCH in the N-th time slot before the target time slot. Setting the end position of the listening window to the start position of the i-th sub-slot PSCCH ensures that the N-th time slot within the listening window does not contain the i-th sub-slot PSCCH or subsequent sub-slot PSCCHs, thus solving the problem of insufficient processing time for the terminal to process sub-slot PSCCHs.

[0070] Assume that the end position of the listening window in the relevant technology is slot n-Tproc,0 (corresponding to...) Figure 5 If the position of A is the starting position of slot n-1 or the ending position of slot n-2, then in this implementation, the ending position of the listening window is the starting position of the first sub-slot PSCCH in slot n-2 (corresponding to...). Figure 5 (The location of A' in the middle).

[0071] In some other examples, the end position of the listening window can be the end position of the PSCCH of the Nth time slot before the target time slot. Setting the end position of the listening window to the end position of the PSCCH of the time slot ensures that the Nth time slot within the listening window contains only the PSCCH of the time slot and not the PSCCH of the sub-time slot, thus solving the problem of insufficient processing time for the terminal to process the PSCCH of the sub-time slot.

[0072] Assume that the end position of the listening window in the relevant technology is slot n-Tproc,0 (corresponding to...) Figure 6 If the position of A is the beginning of slot n-1 or the end of slot n-2, then in this implementation, the end position of the listening window is the end position of the PSCCH in slot n-2 (corresponding to...). Figure 6 (The location of A' in the middle).

[0073] This implementation method can solve the problem of insufficient processing time for the terminal processing sub-slot PSCCH by appropriately adjusting the end position of the listening window.

[0074] It should be noted that the end position of the listening window can be determined autonomously by the terminal, or it can be determined by the terminal based on protocol agreements, network-side configuration, or pre-configuration. This implementation method can be applied to secondary link transmission with time slots as the time domain granularity, as well as secondary link transmission with sub-time slots as the time domain granularity.

[0075] In some embodiments, the granularity of the secondary link resource selection is the time slot granularity;

[0076] If the last M time slots of the listening window include the first PSCCH, the method further includes:

[0077] The terminal determines whether to detect the first PSCCH;

[0078] Wherein, the first PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and M is an integer greater than or equal to 1.

[0079] In this implementation, if the last M time slots of the listening window include the first PSCCH (i.e., the sub-time slot PSCCH), the terminal can determine whether to detect the first PSCCH.

[0080] As an example, such as Figure 7 As shown, assuming slot n-2 is the last time slot of the listening window, and this time slot includes the sub-time slot PSCCH, the terminal can determine whether to detect the sub-time slot PSCCH to solve the problem of insufficient processing time for the terminal to process the sub-time slot PSCCH.

[0081] In some embodiments, the terminal determines whether to detect the first PSCCH by at least one of the following:

[0082] The terminal is implemented based on a terminal and determines whether to detect the first PSCCH;

[0083] The terminal determines whether to detect the first PSCCH based on protocol agreement, network configuration information, or pre-configuration information.

[0084] The terminal determines whether to detect the first PSCCH based on the duration from the first PSCCH to the start position of the target time slot.

[0085] As an example, such as Figure 7As shown, the terminal can determine whether to detect the sub-slot PSCCH in the slot preceding slot n-Tproc,0 (i.e., slot n-2), or whether to detect certain sub-slot PSCCHs near slot n, or based on the UE implementation. Alternatively, the terminal can determine whether to detect the sub-slot PSCCH based on the duration from the sub-slot PSCCH to slot n. For example, if the duration is greater than a preset time unit (the preset time unit can include slot, sub-slot, ms (milliseconds), μs (microseconds), or symbol, etc.), the terminal detects the sub-slot PSCCH; otherwise, the terminal does not detect the sub-slot PSCCH.

[0086] It should be noted that this implementation method can be applied to secondary link transmission with time slots as the time domain granularity, or to secondary link transmission with sub-time slots as the time domain granularity.

[0087] In some embodiments, the granularity of the secondary link resource selection is the sub-time slot granularity, and the granularity of the secondary link transmission is the sub-time slot granularity;

[0088] The terminal performs secondary link resource selection, including:

[0089] The terminal numbers time-domain resources at the sub-time slot granularity according to a preset numbering rule;

[0090] The terminal selects secondary link resources based on the time-domain resource number.

[0091] In this implementation, the granularity of secondary link resource selection is defined at the sub-slot level. For example, both Tproc,0 and Tproc,1 are defined at the sub-slot level to precisely guarantee the processing time requirements of PSCCH / PSSCH.

[0092] When selecting secondary link resources, the terminal can index and number time-domain resources according to a preset numbering rule, with sub-slot as the time-domain granularity, and select secondary link resources based on the index number of the time-domain resources.

[0093] In some embodiments, the terminal selects secondary link resources based on the time-domain resource number, including:

[0094] The terminal determines the secondary link resource selection time parameter based on the time domain resource number;

[0095] The terminal selects secondary link resources based on the secondary link resource selection time parameter;

[0096] The secondary link resource selection time parameter includes at least one of the following:

[0097] The starting position of the listening window;

[0098] The end position of the listening window;

[0099] The starting position of the resource selection window;

[0100] Resource selection trigger time;

[0101] The moment of resource re-evaluation;

[0102] Resource preemption check moment.

[0103] For example, the end position of the listening window can be slot n-Tproc,0', where Tproc,0' is defined based on the granularity of sub-slots. Alternatively, the re-evaluation time can be at least T sub-slots before the sub-slot to be transmitted or reserved. Or, the pre-emption check time can be at least K sub-slots before the sub-slot to be transmitted or reserved.

[0104] The above describes the relevant implementation methods for secondary link resource selection and secondary link transmission. The following describes the relevant implementation methods for secondary link feedback.

[0105] In some embodiments, the method further includes:

[0106] The terminal determines the first physical secondary link feedback channel PSFCH, which is the PSFCH corresponding to the first PSSCH, and the first PSSCH is a PSSCH transmitted at the sub-time slot granularity.

[0107] As mentioned earlier, the system can introduce sub-time slot granularity secondary link transmission. If sub-time slot granularity PSCCH / PSSCH transmission and time slot granularity PSCCH / PSCCH transmission coexist, the terminal needs to distinguish the corresponding PSFCH resources. Otherwise, the terminal may misunderstand when demodulating PSFCH.

[0108] In this implementation, the terminal can determine the PSFCH feedback resource corresponding to the PSCCH / PSSCH transmitted in sub-slot as the basic unit, thereby ensuring that the terminal performs Hybrid Automatic Repeat Request (HARQ) feedback on the correct PSFCH resource, which can improve the transmission performance of the sub-link.

[0109] In some embodiments, the terminal determines the first PSFCH, including at least one of the following:

[0110] The terminal determines the first PSFCH based on the time slot identifier of the first PSSCH;

[0111] The terminal determines the first PSFCH based on the number of the first PSSCH, and there is a preset mapping relationship between the number of the first PSSCH and the first PSFCH.

[0112] Network-side devices can configure PSFCH resources for sub-slot PSCCH / PSSCH independently, or they can configure PSFCH resources uniformly (i.e., sub-slot PSCCH / PSSCH and slot PSCCH / PSSCH are equipped with unified PSFCH resources).

[0113] In this implementation, regardless of whether the network-side device independently configures the PSFCH resources of the sub-slot PSCCH / PSSCH or uniformly configures the PSFCH resources, the terminal can determine the first PSFCH according to the PSFCH feedback resource determination process agreed in version 16 (Rel-16), that is: determine the first PSFCH according to the time slot identifier of PSCCH / PSSCH, specifically, determine the time domain (occasion) and frequency domain (such as PSFCH RB set, etc.) of the first PSFCH.

[0114] However, if PSFCH resources are configured uniformly, the terminal can determine the first PSFCH based on the number of the first PSSCH, and there is a preset mapping relationship between the number of the first PSSCH and the first PSFCH. A specific example is as follows:

[0115] Logically number a set of slot PSCCH / PSSCH resources and sub-slot PSCCH / PSSCH resources. For example, the numbering method could be: slot PSCCH / PSSCHs are numbered #1 to #n, sub-slot PSCCH / PSSCHs are numbered #n+1 to #2*n, and if a slot contains multiple sub-slots, the sub-slots are numbered #2*n+1 to #3*n, and so on. Alternatively, a slot PSCCH / PSSCH could be numbered #m, and the sub-slot PSCCH / PSSCHs within that slot are numbered #m+1. If a slot contains multiple sub-slots, the sub-slots are numbered #m+2, and so on, continuing with the numbering of the next slot. The mapping relationship between the first PSSCH number and the first PSFCH can be as follows: the first numbered PSCCH / PSSCH resource corresponds to a PSFCH resource from PRB#1 to PRB#n, the second numbered PSCCH / PSSCH resource corresponds to a PSFCH from PRB#n+1 to PRB#2*n, and so on.

[0116] In some embodiments, the terminal determines the first PSFCH, including:

[0117] If the data transmitted by the first PSSCH is valid, the terminal determines the first PSFCH.

[0118] If the first PSSCH transmits invalid data (dummy data), the terminal does not need to provide PSFCH feedback, and therefore does not need to determine the first PSFCH.

[0119] In some embodiments, the method further includes:

[0120] The terminal obtains the configuration parameters of the first PSFCH. The configuration parameters of the first PSFCH are configured or pre-configured by the protocol agreement or by the network-side device. The configuration parameters include at least one of resource configuration parameters and feedback timing configuration parameters.

[0121] The terminal determines the first PSFCH, including:

[0122] The terminal determines the first PSFCH based on the configuration parameters of the first PSFCH.

[0123] In some embodiments, the configuration parameters of the first PSFCH and the configuration parameters of the second PSFCH are independent of each other, the second PSFCH is the PSFCH corresponding to the second PSSCH, and the second PSSCH is a PSSCH transmitted at the time slot granularity.

[0124] In some embodiments, the configuration parameters of the first PSFCH include at least one of the following:

[0125] The time-domain resource configuration parameters of the first PSFCH;

[0126] Frequency domain resource configuration parameters of the first PSFCH;

[0127] The code field resource configuration parameters of the first PSFCH;

[0128] The minimum time interval between the first PSSCH and the first PSFCH.

[0129] The following details the two main scenarios for the resource configuration parameters of the first PSFCH (i.e., the PSFCH corresponding to the PSCCH / PSSCH transmitted with sub-slot as the basic unit) and the second PSFCH (i.e., the PSFCH corresponding to the PSCCH / PSSCH transmitted with slot as the basic time unit).

[0130] Scenario 1: The PSFCH corresponding to PSCCH / PSSCH transmitted using slots as the basic time unit is mapped to a different PSFCH occasion than the PSFCH corresponding to PSCCH / PSSCH transmitted using sub-slots as the basic unit. This means that the PSFCH occasion corresponding to PSCCH / PSSCH transmitted using sub-slots as the basic unit is configured independently. For example, at least one of the following can be configured independently: the minimum interval between PSCCH / PSSCH and the corresponding PSFCH occasion, the PSFCH period, and the offset at the start of the PSFCH period.

[0131] Optionally, the PSFCH corresponding to the PSCCH / PSSCH transmitted using slot as the basic time unit is mapped to a different PSFCH resource block set (PSFCH RBset) than the PSFCH corresponding to the PSCCH / PSSCH transmitted using sub-slot as the basic time unit. That is, the RB set of the PSFCH corresponding to the PSCCH / PSSCH transmitted using sub-slot as the basic time unit is configured independently.

[0132] Scenario 2: The PSFCH corresponding to the PSCCH / PSSCH transmitted with slot as the basic time unit is mapped to the same PSFCH occasion as the PSFCH corresponding to the PSCCH / PSSCH transmitted with sub-slot as the basic time unit.

[0133] In this case, the PSFCH corresponding to the PSCCH / PSSCH transmitted using slots as the basic time unit is mapped to the same PSFCH RB set as the PSCCH / PSSCH transmitted using sub-slots as the basic time unit. Optionally, the code domain resources (such as CS) of the PSFCH corresponding to the PSCCH / PSSCH transmitted using sub-slots as the basic time unit can be configured independently. Alternatively, the PSFCH corresponding to the PSCCH / PSSCH transmitted using slots as the basic time unit is mapped to the same code domain resources (such as CS) as the PSFCH corresponding to the PSCCH / PSSCH transmitted using sub-slots as the basic time unit.

[0134] Alternatively, the PSFCH corresponding to PSCCH / PSSCH transmitted using slots as the basic time unit can be mapped to different PSFCH RB sets compared to the PSFCH corresponding to PSCCH / PSSCH transmitted using sub-slots as the basic time unit. In other words, the RB set for the PSFCH corresponding to PSCCH / PSSCH transmitted using sub-slots as the basic time unit can be configured independently.

[0135] Both scenarios have their advantages. Scenario 1 effectively handles the additional processing time overhead caused by sub-slot PSCCH / PSSCH demodulation, while Scenario 2 saves PSFCH resource overhead and avoids half-duplex conflicts between PSFCH and PSSCH, as well as Automatic Gain Control (AGC) variations, provided that the time spent by the terminal processing sub-slot PSCCH / PSSCH is comparable to the time spent processing slot PSCCH / PSSCH. Furthermore, in both scenarios, the resource configuration parameters for the PSFCH resources corresponding to PSCCH / PSSCH transmitted using slots as the basic time unit and the PSFCH resources corresponding to PSCCH / PSSCH transmitted using sub-slots as the basic time unit can be the same, saving the overhead of configuring signaling with different parameters. In scenario two, independently configuring the PSFCH resources corresponding to PSCCH / PSSCH transmitted with sub-slot as the basic time unit can also reduce the collision probability of PSFCH, that is, it can reduce the probability of PSFCH collisions between PSCCH / PSSCH transmitted with different basic time units, thereby improving the transmission efficiency of PSFCH.

[0136] The following details the feedback timing configuration parameters for the first and second PSFCHs:

[0137] PSCCH / PSSCH resources transmitted using slots as the basic time unit correspond to the first PSFCH occasion after at least P slots (i.e., the minimum time interval between the second PSSCH and the second PSFCH is P slots). PSCCH / PSSCH resources transmitted using sub-slots as the basic time unit correspond to the first PSFCH occasion after at least Q slots or Q sub-slots (i.e., the minimum time interval between the first PSSCH and the first PSFCH is Q slots or Q sub-slots). The values ​​of P and Q can be pre-configured.

[0138] In some embodiments, the granularity of the secondary link transmission is at the sub-time slot granularity;

[0139] The terminal determines the first PSFCH, including:

[0140] The terminal numbers time-domain resources at the sub-time slot granularity according to a preset numbering rule;

[0141] The terminal determines the first PSFCH feedback resource based on the time-domain resource number.

[0142] In this implementation, the granularity of the secondary link transmission is the sub-slot granularity. For example, the feedback interval from PSSCH to PSFCH is defined in sub-slot granularity to precisely guarantee the processing time requirements of PSCCH / PSSCH.

[0143] The terminal can index and number time-domain resources at the sub-slot level. The time parameters related to HARQ feedback can be determined based on these index numbers, allowing the terminal to identify the first PSFCH feedback resource. These time parameters may include, for example, the first PSFCH period, the offset from the start of the first PSFCH, and the PSFCH feedback occasion.

[0144] In summary, the embodiments of this application, through the above implementation methods, enable the terminal to adapt to the time requirements of sub-slot-level secondary link transmission processing, thereby improving the secondary link transmission performance.

[0145] The secondary link transmission processing method provided in this application can be executed by a secondary link transmission processing device. This application uses the execution of the secondary link transmission processing method by a secondary link transmission processing device as an example to illustrate the secondary link transmission processing device provided in this application.

[0146] Figure 8 A structural diagram of the secondary link transmission processing apparatus provided in an embodiment of this application is shown. Figure 8As shown, the secondary link transmission processing device 300 includes:

[0147] The first determining module 301 is used to determine the transmission granularity of the first channel of the physical secondary link. The transmission granularity of the first channel of the physical secondary link includes at least one of time slot granularity and sub-time slot granularity. The first channel of the physical secondary link includes at least one of physical secondary link control channel PSCCH and physical secondary link shared channel PSSCH.

[0148] Selection module 302 is used to select secondary link resources, wherein the granularity of the secondary link resource selection includes at least one of time slot granularity and sub-time slot granularity;

[0149] The transmission module 303 is used by the terminal to perform secondary link transmission according to the selected secondary link resources, wherein the granularity of the secondary link transmission includes at least one of time slot granularity and sub-time slot granularity.

[0150] Optionally, the secondary link transmission processing device 300 further includes:

[0151] The second determining module is used to determine the resource selection trigger time and the listening window. The interval between the end position of the listening window and the start position of the target time slot is greater than a preset value. The target time slot is the time slot where the resource selection trigger time is located.

[0152] The detection module is used to detect the PSCCH before the end position of the listening window to obtain the detection result;

[0153] Module 302 is specifically used for:

[0154] Based on the detection results, secondary link resource selection is performed after the resource selection trigger time.

[0155] Optionally, the granularity of the secondary link resource selection is the time slot granularity;

[0156] The end position of the listening window includes any of the following:

[0157] The starting position of the i-th sub-time slot in the N-th time slot preceding the target time slot;

[0158] The end position of the i-th sub-slot PSCCH in the N-th time slot preceding the target time slot;

[0159] The starting position of the i-th sub-slot PSCCH in the N-th slot preceding the target slot;

[0160] The end position of the PSCCH of the Nth time slot preceding the target time slot;

[0161] Wherein, at least one of N and i is based on a protocol agreement or configured or pre-configured by the network; the sub-slot PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and the slot PSCCH is the PSCCH associated with the PSSCH transmitted at the slot granularity.

[0162] Optionally, the granularity of the secondary link resource selection is the time slot granularity;

[0163] The secondary link transmission processing device 300 also includes:

[0164] The third determining module is used to determine whether to detect the first PSCCH if the last M time slots of the listening window include the first PSCCH.

[0165] Wherein, the first PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and M is an integer greater than or equal to 1.

[0166] Optionally, the third determining module is specifically used for at least one of the following:

[0167] Based on terminal implementation, determine whether to detect the first PSCCH;

[0168] Based on the protocol agreement, network configuration information, or pre-configuration information, determine whether to detect the first PSCCH;

[0169] Based on the duration from the first PSCCH to the start position of the target time slot, determine whether to detect the first PSCCH.

[0170] Optionally, the granularity of the secondary link resource selection is the sub-time slot granularity, and the granularity of the secondary link transmission is the sub-time slot granularity;

[0171] Select module 302 includes:

[0172] The first numbering unit is used to number time-domain resources at the sub-slot granularity according to preset numbering rules;

[0173] The selection unit is used to select secondary link resources based on the time-domain resource number.

[0174] Optionally, the selection unit includes:

[0175] The sub-unit is determined based on the time domain resource number to determine the secondary link resource selection time parameter;

[0176] The selection subunit is used to select secondary link resources based on the secondary link resource selection time parameter.

[0177] The secondary link resource selection time parameter includes at least one of the following:

[0178] The starting position of the listening window;

[0179] The end position of the listening window;

[0180] The starting position of the resource selection window;

[0181] Resource selection trigger time;

[0182] Resource reassessment time;

[0183] Resource acquisition and inspection time.

[0184] Optionally, the secondary link transmission processing device 300 further includes:

[0185] The fourth determining module is used to determine the first physical secondary link feedback channel PSFCH, wherein the first PSFCH is the PSFCH corresponding to the first PSSCH, and the first PSSCH is a PSSCH transmitted at the sub-time slot granularity.

[0186] Optionally, the fourth determining module is used for at least one of the following:

[0187] The first PSFCH is determined based on the slot identifier of the first PSSCH;

[0188] The first PSFCH is determined based on the number of the first PSSCH, and there is a preset mapping relationship between the number of the first PSSCH and the first PSFCH.

[0189] Optionally, the fourth determining module is specifically used for:

[0190] If the data transmitted by the first PSSCH is valid, then the first PSFCH is determined.

[0191] Optionally, the granularity of the secondary link transmission is at the sub-time slot granularity;

[0192] The fourth determining module includes:

[0193] The second numbering unit is used to number time-domain resources at the sub-slot granularity according to preset numbering rules;

[0194] The determination unit is used to determine the first PSFCH feedback resource based on the time-domain resource number.

[0195] Optionally, the secondary link transmission processing device 300 further includes:

[0196] The acquisition module is used to acquire the configuration parameters of the first PSFCH. The configuration parameters of the first PSFCH are configured or pre-configured by means of a protocol or by network-side devices. The configuration parameters include at least one of resource configuration parameters and feedback timing configuration parameters.

[0197] The fourth determining module is specifically used for:

[0198] The terminal determines the first PSFCH based on the configuration parameters of the first PSFCH.

[0199] Optionally, the configuration parameters of the first PSFCH and the configuration parameters of the second PSFCH are independent of each other. The second PSFCH is the PSFCH corresponding to the second PSSCH, and the second PSSCH is a PSSCH transmitted at the time slot granularity.

[0200] Optionally, the configuration parameters of the first PSFCH include at least one of the following:

[0201] The time-domain resource configuration parameters of the first PSFCH;

[0202] Frequency domain resource configuration parameters of the first PSFCH;

[0203] The code field resource configuration parameters of the first PSFCH;

[0204] The minimum time interval between the first PSSCH and the first PSFCH.

[0205] In summary, the embodiments of this application, through the above implementation methods, enable the terminal to adapt to the time requirements of sub-slot-level secondary link transmission processing, thereby improving the secondary link transmission performance.

[0206] The secondary link transmission processing device in this application embodiment can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or other devices besides a terminal. For example, the terminal can include, but is not limited to, the type of terminal 11 listed above; other devices can be servers, network attached storage (NAS), etc., and this application embodiment does not specifically limit the type.

[0207] The secondary link transmission processing device provided in this application embodiment can achieve... Figures 2 to 7 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0208] Figure 9A flowchart illustrating a secondary link transmission configuration method provided in an embodiment of this application is shown. Figure 9 As shown, the secondary link transmission configuration method includes the following steps:

[0209] Step 401: The network-side device sends a first message, which includes first configuration information. The first configuration information is used to configure at least one of N and i, and the at least one of N and i is used by the terminal to determine the end position of the listening window.

[0210] In some embodiments, the end position of the listening window includes any of the following:

[0211] The starting position of the i-th sub-slot in the N-th slot preceding the target slot, wherein the target slot is the slot where the resource selection trigger time is located;

[0212] The end position of the i-th sub-slot PSCCH in the N-th time slot preceding the target time slot;

[0213] The starting position of the i-th sub-slot PSCCH in the N-th slot preceding the target slot;

[0214] The end position of the PSCCH of the Nth time slot preceding the target time slot;

[0215] Wherein, the sub-slot PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and the slot PSCCH is the PSCCH associated with the PSSCH transmitted at the slot granularity.

[0216] In some embodiments, it also includes:

[0217] The network-side device sends a second message, which includes second configuration information. The second configuration information is used to indicate whether the terminal should detect the first PSCCH in the last M timeslots of the listening window. The first PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-timeslot granularity, and M is an integer greater than or equal to 1.

[0218] In some embodiments, it also includes:

[0219] The network-side device sends a third message, which includes configuration parameters for a first physical secondary link feedback channel (PSFCH). The first PSFCH is the PSFCH corresponding to the first PSSCH, and the first PSSCH is a PSSCH transmitted at the sub-time slot granularity. The configuration parameters of the first PSFCH include at least one of resource configuration parameters and feedback timing configuration parameters.

[0220] In some embodiments, the configuration parameters of the first PSFCH and the configuration parameters of the second PSFCH are independent of each other, the second PSFCH is the PSFCH corresponding to the second PSSCH, and the second PSSCH is a PSSCH transmitted at the time slot granularity.

[0221] In some embodiments, the configuration parameters of the first PSFCH include at least one of the following:

[0222] The time-domain resource configuration parameters of the first PSFCH;

[0223] Frequency domain resource configuration parameters of the first PSFCH;

[0224] The code field resource configuration parameters of the first PSFCH;

[0225] The minimum time interval between the first PSSCH and the first PSFCH.

[0226] In this embodiment, the network-side device can configure the relevant parameters of the sub-link transmission to enable the terminal to adapt to the time requirements of sub-slot-level sub-link transmission processing, thereby improving the sub-link transmission performance.

[0227] For relevant descriptions of the embodiments in this application, please refer to... Figures 2 to 7 The relevant descriptions of the method embodiments are provided, and since they can achieve the same beneficial effects, they will not be repeated here to avoid repetition.

[0228] The secondary link transmission configuration method provided in this application can be executed by a secondary link transmission configuration device. This application uses the execution of the secondary link transmission configuration method by a secondary link transmission configuration device as an example to illustrate the secondary link transmission configuration device provided in this application.

[0229] Figure 10 A structural diagram of the secondary link transmission configuration apparatus provided in an embodiment of this application is shown. Figure 10 As shown, the secondary link transmission configuration 500 includes:

[0230] The first sending module 501 is used to send a first message, the first message including first configuration information, the first configuration information being used to configure at least one of N and i, the at least one of N and i being used by the terminal to determine the end position of the listening window.

[0231] Optionally, the end position of the listening window includes any of the following:

[0232] The starting position of the i-th sub-slot in the N-th slot preceding the target slot, wherein the target slot is the slot where the resource selection trigger time is located;

[0233] The end position of the i-th sub-slot PSCCH in the N-th time slot preceding the target time slot;

[0234] The starting position of the i-th sub-slot PSCCH in the N-th slot preceding the target slot;

[0235] The end position of the PSCCH of the Nth time slot preceding the target time slot;

[0236] Wherein, the sub-slot PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and the slot PSCCH is the PSCCH associated with the PSSCH transmitted at the slot granularity.

[0237] Optionally, the secondary link transmission configuration 500 also includes:

[0238] The second sending module is used to send a second message, the second message including second configuration information, the second configuration information being used to indicate whether the terminal detects the first PSCCH in the last M time slots of the listening window, the first PSCCH being the PSCCH associated with the PSSCH transmitted at the sub-time slot granularity, and M being an integer greater than or equal to 1.

[0239] Optionally, the secondary link transmission configuration 500 also includes:

[0240] The third sending module is used to send a third message, the third message including configuration parameters of the first physical secondary link feedback channel PSFCH, the first PSFCH being the PSFCH corresponding to the first PSSCH, the first PSSCH being a PSSCH transmitted at the sub-time slot granularity, and the configuration parameters of the first PSFCH including at least one of resource configuration parameters and feedback timing configuration parameters.

[0241] Optionally, the configuration parameters of the first PSFCH and the configuration parameters of the second PSFCH are independent of each other. The second PSFCH is the PSFCH corresponding to the second PSSCH, and the second PSSCH is a PSSCH transmitted at the time slot granularity.

[0242] Optionally, the configuration parameters of the first PSFCH include at least one of the following:

[0243] The time-domain resource configuration parameters of the first PSFCH;

[0244] Frequency domain resource configuration parameters of the first PSFCH;

[0245] The code field resource configuration parameters of the first PSFCH;

[0246] The minimum time interval between the first PSSCH and the first PSFCH.

[0247] In this embodiment of the application, by configuring the relevant parameters of the sub-link transmission, the terminal can adapt to the time requirements of sub-slot-level sub-link transmission processing, thereby improving the sub-link transmission performance.

[0248] The secondary link transmission configuration device in this application embodiment can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or other devices besides a terminal. For example, the terminal can include, but is not limited to, the type of terminal 11 listed above; other devices can be servers, network attached storage (NAS), etc., and this application embodiment does not specifically limit the type.

[0249] The secondary link transmission configuration device provided in this application embodiment can achieve... Figure 9 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0250] Optional, such as Figure 11 As shown, this application embodiment also provides a communication device 600, including a processor 601 and a memory 602. The memory 602 stores programs or instructions that can run on the processor 601. For example, when the communication device 600 is a terminal, the program or instructions executed by the processor 601 implement the various steps of the above-described secondary link transmission processing method embodiment and achieve the same technical effect. When the communication device 600 is a network-side device, the program or instructions executed by the processor 601 implement the various steps of the above-described secondary link transmission configuration method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0251] This application embodiment also provides a terminal, including a processor and a communication interface. The communication interface or the processor is used to determine the transmission granularity of a first channel of a physical secondary link. The transmission granularity of the first channel of the physical secondary link includes at least one of time slot granularity and sub-time slot granularity. The first channel of the physical secondary link includes at least one of PSCCH and PSSCH. The communication interface or the processor is further used to perform secondary link resource selection. The granularity of the secondary link resource selection includes at least one of time slot granularity and sub-time slot granularity. The communication interface or the processor is further used to perform secondary link transmission according to the selected secondary link resources. The granularity of the secondary link transmission includes at least one of time slot granularity and sub-time slot granularity. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 12 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0252] The terminal 700 includes, but is not limited to, at least some of the following components: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0253] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 710 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 12 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0254] It should be understood that, in this embodiment, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes at least one of 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 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 buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0255] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 701 can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low-noise amplifier, duplexer, etc.

[0256] The memory 709 can be used to store software programs or instructions, as well as various data. The memory 709 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 709 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 709 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0257] Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0258] At least one of the radio frequency unit 701 and the processor 710 is used for:

[0259] The transmission granularity of the first channel of the physical secondary link is determined, wherein the transmission granularity of the first channel of the physical secondary link includes at least one of time slot granularity and sub-time slot granularity, and the first channel of the physical secondary link includes at least one of physical secondary link control channel PSCCH and physical secondary link shared channel PSSCH;

[0260] Perform secondary link resource selection, wherein the granularity of the secondary link resource selection includes at least one of time slot granularity and sub-time slot granularity;

[0261] Sublink transmission is performed based on the selected sublink resources, and the granularity of the sublink transmission includes at least one of time slot granularity and sub-time slot granularity.

[0262] In this embodiment of the application, considering that the system can introduce sub-time slot granularity of secondary link transmission, the terminal can first determine the transmission granularity of the first channel of the physical secondary link during the secondary link transmission process, and then perform secondary link resource selection and secondary link transmission. In this way, the terminal can adopt an appropriate processing method to perform secondary link resource selection and secondary link transmission according to the transmission granularity of the first channel of the physical secondary link, thereby improving the secondary link transmission performance.

[0263] Optionally, at least one of the radio frequency unit 701 and the processor 710 is further used for:

[0264] Determine the resource selection trigger time and the listening window. The interval between the end position of the listening window and the start position of the target time slot is greater than a preset value. The target time slot is the time slot where the resource selection trigger time is located.

[0265] Before the end of the listening window, the PSCCH is detected to obtain the detection result;

[0266] Based on the detection results, secondary link resource selection is performed after the resource selection trigger time.

[0267] Optionally, the granularity of the secondary link resource selection is the time slot granularity;

[0268] The end position of the listening window includes any of the following:

[0269] The starting position of the i-th sub-time slot in the N-th time slot preceding the target time slot;

[0270] The end position of the i-th sub-slot PSCCH in the N-th time slot preceding the target time slot;

[0271] The starting position of the i-th sub-slot PSCCH in the N-th slot preceding the target slot;

[0272] The end position of the PSCCH of the Nth time slot preceding the target time slot;

[0273] Wherein, at least one of N and i is based on a protocol agreement or configured or pre-configured by the network; the sub-slot PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and the slot PSCCH is the PSCCH associated with the PSSCH transmitted at the slot granularity.

[0274] Optionally, the granularity of the secondary link resource selection is the time slot granularity;

[0275] In the case that the first PSCCH is included in the last M time slots of the listening window, the processor 710 is further configured to:

[0276] Determine whether to detect the first PSCCH;

[0277] Wherein, the first PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and M is an integer greater than or equal to 1.

[0278] Optionally, the processor 710 is also used for at least one of the following:

[0279] Based on terminal implementation, determine whether to detect the first PSCCH;

[0280] Based on the protocol agreement, network configuration information, or pre-configuration information, determine whether to detect the first PSCCH;

[0281] Based on the duration from the first PSCCH to the start position of the target time slot, determine whether to detect the first PSCCH.

[0282] Optionally, the granularity of the secondary link resource selection is the sub-time slot granularity, and the granularity of the secondary link transmission is the sub-time slot granularity;

[0283] At least one of the radio frequency unit 701 and the processor 710 is further used for:

[0284] According to the preset numbering rules, time-domain resources are numbered at the sub-slot granularity;

[0285] Secondary link resources are selected based on the time-domain resource number.

[0286] Optionally, at least one of the radio frequency unit 701 and the processor 710 is further used for:

[0287] Determine the timing parameters for selecting secondary link resources based on the time domain resource number;

[0288] The secondary link resource is selected based on the secondary link resource selection time parameter.

[0289] The secondary link resource selection time parameter includes at least one of the following:

[0290] The starting position of the listening window;

[0291] The end position of the listening window;

[0292] The starting position of the resource selection window;

[0293] Resource selection trigger time;

[0294] Resource reassessment time;

[0295] Resource acquisition and inspection time.

[0296] Optionally, at least one of the radio frequency unit 701 and the processor 710 is further used for:

[0297] The first physical secondary link feedback channel PSFCH is determined. The first PSFCH is the PSFCH corresponding to the first PSSCH. The first PSSCH is a PSSCH transmitted at the sub-time slot granularity.

[0298] Optionally, at least one of the radio frequency unit 701 and the processor 710 is further used for at least one of the following:

[0299] The terminal determines the first PSFCH based on the time slot identifier of the first PSSCH;

[0300] The terminal determines the first PSFCH based on the number of the first PSSCH, and there is a preset mapping relationship between the number of the first PSSCH and the first PSFCH.

[0301] Optionally, at least one of the radio frequency unit 701 and the processor 710 is further used for:

[0302] If the data transmitted by the first PSSCH is valid, the terminal determines the first PSFCH.

[0303] Optionally, the granularity of the secondary link transmission is at the sub-time slot granularity;

[0304] At least one of the radio frequency unit 701 and the processor 710 is further used for:

[0305] According to the preset numbering rules, time-domain resources are numbered at the sub-slot granularity;

[0306] The first PSFCH feedback resource is determined based on the time-domain resource number.

[0307] Optionally, at least one of the radio frequency unit 701 and the processor 710 is further used for:

[0308] The configuration parameters of the first PSFCH are obtained. The configuration parameters of the first PSFCH are configured or pre-configured by means of a protocol or by network-side devices. The configuration parameters include at least one of resource configuration parameters and feedback timing configuration parameters.

[0309] The first PSFCH is determined based on its configuration parameters.

[0310] Optionally, the configuration parameters of the first PSFCH and the configuration parameters of the second PSFCH are independent of each other. The second PSFCH is the PSFCH corresponding to the second PSSCH, and the second PSSCH is a PSSCH transmitted at the time slot granularity.

[0311] Optionally, the configuration parameters of the first PSFCH include at least one of the following:

[0312] The time-domain resource configuration parameters of the first PSFCH;

[0313] Frequency domain resource configuration parameters of the first PSFCH;

[0314] The code field resource configuration parameters of the first PSFCH;

[0315] The minimum time interval between the first PSSCH and the first PSFCH.

[0316] In summary, through the above implementation methods in this application embodiment, the terminal can adapt to the time requirements of sub-slot-level secondary link transmission processing, thereby improving the secondary link transmission performance.

[0317] This application embodiment also provides a network-side device, including a processor and a communication interface. The communication interface is used to send a first message, the first message including first configuration information. The first configuration information is used to configure the end position of the listening window to any of the following: the start position of the i-th sub-time slot in the N-th time slot before the target time slot, where the target time slot is the time slot where the resource selection trigger time is located; the end position of the i-th sub-time slot PSCCH in the N-th time slot before the target time slot; the start position of the i-th sub-time slot PSCCH in the N-th time slot before the target time slot; the end position of the time slot PSCCH in the N-th time slot before the target time slot; wherein, the sub-time slot PSCCH is a PSCCH associated with a PSSCH transmitted at the sub-time slot granularity, and the time slot PSCCH is a PSCCH associated with a PSSCH transmitted at the time slot granularity. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0318] Specifically, embodiments of this application also provide a network-side device. For example... Figure 13 As shown, the network-side device 800 includes: an antenna 81, a radio frequency (RF) device 82, a baseband device 83, a processor 84, and a memory 85. The antenna 81 is connected to the RF device 82. In the uplink direction, the RF device 82 receives information through the antenna 81 and transmits 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 RF device 82. The RF device 82 processes the received information and transmits it through the antenna 81.

[0319] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 83, which includes a baseband processor.

[0320] Baseband device 83 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 13 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 85 via a bus interface to call the program in the memory 85 and execute the network device operation shown in the above method embodiment.

[0321] The network-side device may also include a network interface 86, such as a common public radio interface (CPRI).

[0322] Specifically, the network-side device 800 of this embodiment further includes: instructions or programs stored in a memory 85 and executable on a processor 84, wherein the processor 84 calls the instructions or programs in the memory 85 to execute. Figure 10 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0323] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described secondary link transmission processing method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0324] The processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0325] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described secondary link transmission processing method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0326] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0327] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described sub-link transmission processing method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0328] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the sub-link transmission processing method described above, and the network-side device can be used to perform the steps of the sub-link transmission configuration method described above.

[0329] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0330] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0331] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A secondary link transmission processing method, characterized in that, include: The terminal determines the transmission granularity of the first channel of the physical secondary link, wherein the transmission granularity of the first channel of the physical secondary link includes at least one of time slot and sub-time slot, and the first channel of the physical secondary link includes at least one of physical secondary link control channel PSCCH and physical secondary link shared channel PSSCH; The terminal performs secondary link resource selection, and the granularity of the secondary link resource selection includes time slot granularity. The terminal performs secondary link transmission according to the selected secondary link resources, and the granularity of the secondary link transmission includes at least one of time slot granularity and sub-time slot granularity; Before the terminal performs secondary link resource selection, the method further includes: The terminal determines the resource selection trigger time and the listening window. The interval between the end position of the listening window and the start position of the target time slot is greater than a preset value. The target time slot is the time slot where the resource selection trigger time is located. The terminal detects the PSCCH before the end of the listening window to obtain the detection result; The terminal performs secondary link resource selection, including: Based on the detection results, the terminal performs secondary link resource selection after the resource selection trigger time. The end position of the listening window includes any of the following: The starting position of the i-th sub-time slot in the N-th time slot preceding the target time slot; The end position of the i-th sub-slot PSCCH in the N-th time slot preceding the target time slot; The starting position of the i-th sub-slot PSCCH in the N-th slot preceding the target slot; The end position of the PSCCH of the Nth time slot preceding the target time slot; Wherein, at least one of N and i is based on a protocol agreement or configured or pre-configured by the network; the sub-slot PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and the slot PSCCH is the PSCCH associated with the PSSCH transmitted at the slot granularity.

2. The method according to claim 1, characterized in that, If the last M time slots of the listening window include the first PSCCH, the method further includes: The terminal determines whether to detect the first PSCCH; Wherein, the first PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and M is an integer greater than or equal to 1.

3. The method according to claim 2, characterized in that, The terminal determines whether to detect the first PSCCH by at least one of the following: The terminal is implemented based on a terminal and determines whether to detect the first PSCCH; The terminal determines whether to detect the first PSCCH based on protocol agreement, network configuration information, or pre-configuration information. The terminal determines whether to detect the first PSCCH based on the duration from the first PSCCH to the start position of the target time slot.

4. The method according to claim 1, characterized in that, The granularity of the secondary link resource selection also includes the sub-time slot granularity, and the granularity of the secondary link transmission is the sub-time slot granularity; The terminal performs secondary link resource selection, including: The terminal numbers time-domain resources at the sub-time slot granularity according to a preset numbering rule; The terminal selects secondary link resources based on the time-domain resource number.

5. The method according to claim 4, characterized in that, The terminal selects secondary link resources based on the time-domain resource number, including: The terminal determines the secondary link resource selection time parameter based on the time domain resource number; The terminal selects secondary link resources based on the secondary link resource selection time parameter; The secondary link resource selection time parameter includes at least one of the following: The starting position of the listening window; The end position of the listening window; The starting position of the resource selection window; Resource selection trigger time; Resource reassessment time; Resource acquisition and inspection time.

6. The method according to claim 1, characterized in that, The method further includes: The terminal determines the first physical secondary link feedback channel PSFCH, which is the PSFCH corresponding to the first PSSCH, and the first PSSCH is a PSSCH transmitted at the sub-time slot granularity.

7. The method according to claim 6, characterized in that, The terminal determines the first PSFCH, including at least one of the following: The terminal determines the first PSFCH based on the time slot identifier of the first PSSCH; The terminal determines the first PSFCH based on the number of the first PSSCH, and there is a preset mapping relationship between the number of the first PSSCH and the first PSFCH.

8. The method according to claim 6, characterized in that, The terminal determines the first PSFCH, including: If the data transmitted by the first PSSCH is valid, the terminal determines the first PSFCH.

9. The method according to claim 6, characterized in that, The granularity of the secondary link transmission is at the sub-timeslot granularity; The terminal determines the first PSFCH, including: The terminal numbers time-domain resources at the sub-time slot granularity according to a preset numbering rule; The terminal determines the first PSFCH feedback resource based on the time-domain resource number.

10. The method according to claim 6, characterized in that, The method further includes: The terminal obtains the configuration parameters of the first PSFCH. The configuration parameters of the first PSFCH are configured or pre-configured by the protocol agreement or by the network-side device. The configuration parameters include at least one of resource configuration parameters and feedback timing configuration parameters. The terminal determines the first PSFCH, including: The terminal determines the first PSFCH based on the configuration parameters of the first PSFCH.

11. The method according to claim 10, characterized in that, The configuration parameters of the first PSFCH are independent of those of the second PSFCH. The second PSFCH is the PSFCH corresponding to the second PSSCH, which is a PSSCH transmitted at the time slot granularity.

12. The method according to claim 10 or 11, characterized in that, The configuration parameters of the first PSFCH include at least one of the following: The time-domain resource configuration parameters of the first PSFCH; Frequency domain resource configuration parameters of the first PSFCH; The code field resource configuration parameters of the first PSFCH; The minimum time interval between the first PSSCH and the first PSFCH.

13. A secondary link transmission configuration method, characterized in that, include: The network-side device sends a first message, which includes first configuration information. The first configuration information is used to configure at least one of N and i, and the at least one of N and i is used by the terminal to determine the end position of the listening window. The end position of the listening window includes any of the following: The starting position of the i-th sub-slot in the N-th slot preceding the target slot, where the target slot is the slot where the resource selection trigger time is located; The end position of the i-th sub-slot PSCCH in the N-th time slot preceding the target time slot; The starting position of the i-th sub-slot PSCCH in the N-th slot preceding the target slot; The end position of the PSCCH of the Nth time slot preceding the target time slot; Wherein, the sub-slot PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and the slot PSCCH is the PSCCH associated with the PSSCH transmitted at the slot granularity.

14. The method according to claim 13, characterized in that, Also includes: The network-side device sends a second message, which includes second configuration information. The second configuration information is used to indicate whether the terminal should detect the first PSCCH in the last M timeslots of the listening window. The first PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-timeslot granularity, and M is an integer greater than or equal to 1.

15. The method according to claim 13, characterized in that, Also includes: The network-side device sends a third message, which includes configuration parameters for a first physical secondary link feedback channel (PSFCH). The first PSFCH is the PSFCH corresponding to the first PSSCH, and the first PSSCH is a PSSCH transmitted at the sub-time slot granularity. The configuration parameters of the first PSFCH include at least one of resource configuration parameters and feedback timing configuration parameters.

16. The method according to claim 15, characterized in that, The configuration parameters of the first PSFCH are independent of those of the second PSFCH. The second PSFCH is the PSFCH corresponding to the second PSSCH, which is a PSSCH transmitted at the time slot granularity.

17. The method according to claim 15 or 16, characterized in that, The configuration parameters of the first PSFCH include at least one of the following: The time-domain resource configuration parameters of the first PSFCH; Frequency domain resource configuration parameters of the first PSFCH; The code field resource configuration parameters of the first PSFCH; The minimum time interval between the first PSSCH and the first PSFCH.

18. A secondary link transmission processing device, characterized in that, include: The first determining module is used to determine the transmission granularity of the first channel of the physical secondary link. The transmission granularity of the first channel of the physical secondary link includes at least one of time slot granularity and sub-time slot granularity. The first channel of the physical secondary link includes at least one of physical secondary link control channel PSCCH and physical secondary link shared channel PSSCH. The selection module is used to select secondary link resources, and the granularity of the secondary link resource selection includes time slot granularity. The transmission module is used by the terminal to perform secondary link transmission according to the selected secondary link resources, wherein the granularity of the secondary link transmission includes at least one of time slot granularity and sub-time slot granularity. The secondary link transmission processing device further includes: The second determining module is used to determine the resource selection trigger time and the listening window. The interval between the end position of the listening window and the start position of the target time slot is greater than a preset value. The target time slot is the time slot where the resource selection trigger time is located. The detection module is used to detect the PSCCH before the end position of the listening window to obtain the detection result; The selection module is specifically used for: Based on the detection results, secondary link resource selection is performed after the resource selection trigger time. The end position of the listening window includes any of the following: The starting position of the i-th sub-time slot in the N-th time slot preceding the target time slot; The end position of the i-th sub-slot PSCCH in the N-th time slot preceding the target time slot; The starting position of the i-th sub-slot PSCCH in the N-th slot preceding the target slot; The end position of the PSCCH of the Nth time slot preceding the target time slot; Wherein, at least one of N and i is based on a protocol agreement or configured or pre-configured by the network; the sub-slot PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and the slot PSCCH is the PSCCH associated with the PSSCH transmitted at the slot granularity.

19. A secondary link transmission configuration device, characterized in that, include: A first sending module is used to send a first message, the first message including first configuration information, the first configuration information being used to configure at least one of N and i, the at least one of N and i being used by the terminal to determine the end position of the listening window; The end position of the listening window includes any of the following: The starting position of the i-th sub-slot in the N-th slot preceding the target slot, where the target slot is the slot where the resource selection trigger time is located; The end position of the i-th sub-slot PSCCH in the N-th time slot preceding the target time slot; The starting position of the i-th sub-slot PSCCH in the N-th slot preceding the target slot; The end position of the PSCCH of the Nth time slot preceding the target time slot; Wherein, the sub-slot PSCCH is the PSCCH associated with the PSSCH transmitted at the sub-slot granularity, and the slot PSCCH is the PSCCH associated with the PSSCH transmitted at the slot granularity.

20. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the sublink transmission processing method as described in any one of claims 1 to 12.

21. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the sublink transmission configuration method as described in any one of claims 13 to 17.

22. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the sublink transmission processing method as described in any one of claims 1 to 12, or implement the steps of the sublink transmission configuration method as described in any one of claims 13 to 17.

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