Resource determination methods and apparatuses, terminal, communication device and storage medium

Abstract

The present disclosure relates to the technical field of communications, and specifically to resource determination methods and apparatuses, a terminal, a communication device and a storage medium. One resource determination method comprises: on the basis of the presence or absence of a reserved resource in a first time domain unit, determining in the first time domain unit a first starting position of a cyclic prefix extension of a first transmission, wherein the first starting position is equal to a second starting position of a first symbol plus an interval, the first symbol being a symbol preceding the first symbol of the first time domain unit. In the present disclosure, when the first time domain unit has or does not have the reserved resource, the determined first starting position is suitable for a first terminal to send the first transmission in the first time domain unit, thereby helping to make ensure that the first transmission is smoothly sent, and further helping to ensure good communication quality of the terminal.

Description

Resource determination method, device, terminal, communication equipment and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a resource determination method, a resource determination apparatus, a terminal, a communication device, and a storage medium. Background Art

[0002] In some communication scenarios, a terminal may communicate based on a sidelink, for example, communicating with other terminals via a sidelink. However, in some cases, there may be some technical problems with terminal communication based on a sidelink.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a resource determination method, a resource determination apparatus, a terminal, a communication device, and a storage medium to solve technical problems in related technologies.

[0005] According to a first aspect of an embodiment of the present disclosure, a resource determination method is proposed, which is executed by a first terminal. The method includes: determining a first starting position of a cyclic prefix extension of a first transmission in a first time domain unit based on whether reserved resources exist in the first time domain unit, wherein the first starting position is equal to the second starting position of the first symbol plus an interval, and the first symbol is a symbol before the first symbol of the first time domain unit.

[0006] According to the second aspect of an embodiment of the present disclosure, a resource determination method is proposed, which is executed by a third terminal, and the method includes: determining a first starting position of a cyclic prefix extension of a first transmission of the first terminal in the first time domain unit based on whether there are reserved resources in the first time domain unit, wherein the first starting position is equal to the second starting position of the first symbol plus an interval, and the first symbol is a symbol before the first symbol of the first time domain unit; and starting to receive the first transmission of the first terminal in the first time domain unit based on the first starting position.

[0007] According to a third aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; a memory coupled to the one or more processors, wherein the memory stores executable instructions, and when the executable instructions are executed by the one or more processors, the terminal executes the resource determination method described in any one of the first and second aspects.

[0008] According to the fourth aspect of an embodiment of the present disclosure, a resource determination device is proposed, including: a processing module for determining a first starting position of a cyclic prefix extension of a first transmission in a first time domain unit based on whether reserved resources exist in the first time domain unit, wherein the first starting position is equal to the second starting position of the first symbol plus an interval, and the first symbol is a symbol before the first symbol of the first time domain unit.

[0009] According to the fifth aspect of an embodiment of the present disclosure, a resource determination device is proposed, including: a processing module, used to determine a first starting position of a cyclic prefix extension of a first transmission of a first terminal in the first time domain unit according to whether there are reserved resources in the first time domain unit, wherein the first starting position is equal to the second starting position of a first symbol plus an interval, and the first symbol is a symbol before the first symbol of the first time domain unit; a transceiver module, used to start receiving the first transmission of the first terminal in the first time domain unit according to the first starting position.

[0010] According to a sixth aspect of an embodiment of the present disclosure, a communication device is proposed, comprising: one or more processors; wherein the processor is used to call instructions so that the communication device executes the resource determination method described in any one of the first aspect and the second aspect.

[0011] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a first terminal and a third terminal, wherein the first terminal is configured to implement the resource determination method described in the first aspect, and the third terminal is configured to implement the resource determination method described in the second aspect.

[0012] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, wherein the storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the resource determination method described in any one of the first and second aspects.

[0013] According to an embodiment of the present disclosure, when the first terminal expects to send information in the first time domain unit, the first starting position of the CPE (Cyclic Prefix Extend) of the first transmission can be determined based on whether there are reserved resources in the first time domain unit, wherein the first starting position is equal to the second starting position of the symbol before the first symbol of the first time domain unit plus the interval. Accordingly, the determined first starting position is suitable for the case where there are reserved resources and no reserved resources in the first time domain unit, and the first terminal sends the first transmission in the first time domain unit, which is conducive to ensuring the smooth transmission of the first transmission, and further conducive to ensuring good communication quality of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0016] FIG2 is an interactive schematic diagram illustrating a resource determination method according to an embodiment of the present disclosure.

[0017] FIG3 is a schematic diagram showing a spacing according to an embodiment of the present disclosure.

[0018] FIG4 is a schematic flowchart showing a resource determination method according to an embodiment of the present disclosure.

[0019] FIG. 5 is a schematic diagram showing another spacing according to an embodiment of the present disclosure.

[0020] FIG6 is a schematic flowchart showing a resource determination method according to an embodiment of the present disclosure.

[0021] FIG7 is a schematic block diagram showing a resource determination device according to an embodiment of the present disclosure.

[0022] FIG8 is a schematic block diagram showing a resource determination device according to an embodiment of the present disclosure.

[0023] FIG9 is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0024] FIG10 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] Embodiments of the present disclosure provide a resource determination method, apparatus, terminal, communication device, and storage medium.

[0026] In the first aspect, an embodiment of the present disclosure proposes a resource determination method, which is executed by a first terminal, and the method includes: determining a first starting position of a cyclic prefix extension of a first transmission in a first time domain unit based on whether there are reserved resources in the first time domain unit, wherein the first starting position is equal to the second starting position of the first symbol plus an interval, and the first symbol is a symbol before the first symbol of the first time domain unit.

[0027] In the above embodiment, when the first terminal desires to transmit information in the first time domain unit, the first starting position of the CPE for the first transmission can be determined based on whether reserved resources exist in the first time domain unit, where the first starting position is equal to the second starting position of the symbol preceding the first symbol of the first time domain unit plus the interval. Accordingly, the determined first starting position is suitable for transmitting the first transmission in the first time domain unit in both cases where reserved resources exist and where no reserved resources exist in the first time domain unit, thereby ensuring smooth transmission of the first transmission and, in turn, ensuring good communication quality for the terminal.

[0028] In combination with some embodiments of the first aspect, in some embodiments, the first symbol includes a first symbol before a first symbol of the first time domain unit.

[0029] In conjunction with some embodiments of the first aspect, in some embodiments, the first starting position satisfies at least one of the following:

[0030] There are reserved resources in the first time domain unit, and the first starting position is equal to the second starting position plus the first interval;

[0031] There is no reserved resource in the first time domain unit, and the first starting position is equal to the second starting position plus the second interval.

[0032] In combination with some embodiments of the first aspect, in some embodiments, the first interval is 16 microseconds.

[0033] In combination with some embodiments of the first aspect, in some embodiments, the first starting position is one of a plurality of first starting positions in the first candidate set, wherein each first starting position includes the second starting position plus a first interval.

[0034] In combination with some embodiments of the first aspect, in some embodiments, the first starting position is a predefined second starting position plus a first interval.

[0035] In combination with some embodiments of the first aspect, in some embodiments, the interval is a first interval, and the first terminal accesses the channel in one of the following ways: Type 2B; Type 2C.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the second interval is greater than or equal to 25 microseconds.

[0037] In combination with some embodiments of the first aspect, in some embodiments, the first starting position is one of a plurality of first starting positions in the second candidate set, wherein each first starting position includes the second starting position plus a second interval.

[0038] In combination with some embodiments of the first aspect, in some embodiments, the first starting position is a predefined second starting position plus a second interval.

[0039] In combination with some embodiments of the first aspect, in some embodiments, the interval is a second interval, and the first terminal accesses the channel using a Type 2A method.

[0040] In combination with some embodiments of the first aspect. In some embodiments, determining the first starting position of the cyclic prefix extension of the first transmission in the first time domain unit according to whether reserved resources exist in the first time domain unit includes: determining the channel occupancy time shared by the first terminal and the second terminal, and determining the first starting position according to whether reserved resources exist in the first time domain unit.

[0041] In combination with some embodiments of the first aspect, in some embodiments, when a first condition is met, it is determined that the first terminal shares the channel occupancy time of the second terminal, wherein the first condition includes at least one of the following:

[0042] The second channel access level value indicated by the second terminal is smaller than the first channel access level value in the channel occupancy time sharing information of the first terminal;

[0043] The type of the first transmission is unicast, and the destination identifier indicated by the first direct link control information of the first terminal matches the source identifier indicated by the reserved direct link control information of the second terminal;

[0044] The type of the first transmission is unicast, and the source identifier indicated by the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0045] The type of the first transmission is multicast or broadcast, and the target identifier indicated by the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0046] The type of the first transmission is unicast, and the source identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0047] The type of the first transmission is unicast, and the target identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the source identifier indicated by the reserved direct link control information of the second terminal;

[0048] The type of the first transmission is multicast or broadcast, and the target identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal.

[0049] In the second aspect, an embodiment of the present disclosure proposes a resource determination method, which is executed by a third terminal, and the method includes: determining a first starting position of a cyclic prefix extension of a first transmission of the first terminal in the first time domain unit based on whether there are reserved resources in the first time domain unit, wherein the first starting position is equal to the second starting position of the first symbol plus an interval, and the first symbol is a symbol before the first symbol of the first time domain unit; starting to receive the first transmission of the first terminal in the first time domain unit based on the first starting position.

[0050] In the above embodiment, when a third terminal needs to receive the first transmission of the first terminal in the first time domain unit, the first starting position of the CPE of the first transmission of the first terminal can be determined based on whether there are reserved resources in the first time domain unit, where the first starting position is equal to the second starting position of the symbol before the first symbol of the first time domain unit plus the interval. Accordingly, the determined first starting position is suitable for the case where the reserved resources exist and the case where the reserved resources do not exist in the first time domain unit, and the first terminal sends the first transmission in the first time domain unit, which is conducive to ensuring the smooth transmission of the first transmission, and further conducive to ensuring good communication quality of the terminal.

[0051] In combination with some embodiments of the second aspect, in some embodiments, the first symbol includes a first symbol before a first symbol of the first time domain unit.

[0052] In conjunction with some embodiments of the second aspect, in some embodiments, the first starting position satisfies at least one of the following:

[0053] There are reserved resources in the first time domain unit, and the first starting position is equal to the second starting position plus the first interval;

[0054] There is no reserved resource in the first time domain unit, and the first starting position is equal to the second starting position plus the second interval.

[0055] In conjunction with some embodiments of the second aspect, in some embodiments, the first interval is 16 microseconds.

[0056] In combination with some embodiments of the second aspect, in some embodiments, the first starting position is one of a plurality of first starting positions in the first candidate set, wherein each first starting position includes the second starting position plus a first interval.

[0057] In combination with some embodiments of the second aspect, in some embodiments, the first starting position is a predefined second starting position plus a first interval.

[0058] In combination with some embodiments of the second aspect, in some embodiments, the second interval is greater than or equal to 25 microseconds.

[0059] In combination with some embodiments of the second aspect, in some embodiments, the first starting position is one of a plurality of first starting positions in the second candidate set, wherein each first starting position includes the second starting position plus a second interval.

[0060] In combination with some embodiments of the second aspect, in some embodiments, the first starting position is a predefined second starting position plus a second interval.

[0061] In a third aspect, an embodiment of the present disclosure proposes a terminal comprising: one or more processors; a memory coupled to the one or more processors, the memory storing executable instructions, which, when executed by the one or more processors, enables the terminal to execute the resource determination method described in any one of the first aspect, the optional embodiment of the first aspect, the second aspect, and the optional embodiment of the second aspect of the claim.

[0062] In fourth aspect, an embodiment of the present disclosure proposes a resource determination device, including: a processing module, used to determine the first starting position of the cyclic prefix extension of the first transmission in the first time domain unit based on whether there are reserved resources in the first time domain unit, wherein the first starting position is equal to the second starting position of the first symbol plus the interval, and the first symbol is the symbol before the first symbol of the first time domain unit.

[0063] In the fifth aspect, an embodiment of the present disclosure proposes a resource determination device, including: a processing module, used to determine the first starting position of the cyclic prefix extension of the first transmission of the first terminal in the first time domain unit based on whether there are reserved resources in the first time domain unit, wherein the first starting position is equal to the second starting position of the first symbol plus the interval, and the first symbol is the symbol before the first symbol of the first time domain unit; a transceiver module, used to start receiving the first transmission of the first terminal in the first time domain unit based on the first starting position.

[0064] In a sixth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; one or more memories for storing instructions; wherein the processor is used to call the instructions so that the communication device executes the resource determination method described in the first and second aspects, and the optional embodiments of the first and second aspects.

[0065] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, which includes: a first terminal and a third terminal; wherein the first terminal is configured to execute the method described in the first aspect and any one of the optional embodiments of the first aspect, and the third terminal is configured to execute the method described in the second aspect and any one of the optional embodiments of the second aspect.

[0066] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes a method as described in any one of the first aspect, the optional embodiment of the first aspect, the second aspect, and the optional embodiment of the second aspect.

[0067] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the first aspect, the optional embodiment of the first aspect, the second aspect, and the optional embodiment of the second aspect.

[0068] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect, the optional embodiment of the first aspect, the second aspect, and the optional embodiment of the second aspect.

[0069] It is understandable that the above-mentioned terminal, resource determination device, communication device, communication system, storage medium, program product, and computer program are all used to execute the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0070] The present disclosure provides resource determination methods, apparatuses, terminals, communication devices, and storage media. In some embodiments, the terms resource determination method, information processing method, and communication method are interchangeable; the terms resource determination apparatus, information processing apparatus, and communication apparatus are interchangeable; and the terms information processing system and communication system are interchangeable.

[0071] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional embodiments in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional embodiments of other embodiments.

[0072] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0073] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0074] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., may mean "one and only one", or "one or more", "at least one", etc.

[0075] For example, when using articles such as “a”, “an”, and “the” in English in translation, the noun following the article can be understood as a singular expression or a plural expression.

[0076] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0077] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0078] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0079] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0080] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restrictions on the position, order, priority, quantity or content of the description objects. For the statement of the description objects, please refer to the description in the context of the claims or embodiments, and no unnecessary restrictions should be constituted due to the use of prefixes.

[0081] For example, if the description object is "field," the ordinal number preceding "field" in "first field" and "second field" does not restrict the position or order of the "fields." "First" and "second" do not restrict whether the modified "fields" are in the same message, nor do they restrict the order of the "first field" and "second field." For another example, if the description object is "level," the ordinal number preceding "level" in "first level" and "second level" does not restrict the priority of the "levels." For another example, the number of description objects is not restricted by the ordinal number and can be one or more. For example, in the case of "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the description object is "device," "first device" and "second device" can be the same or different devices, and their types can be the same or different. For another example, if the description object is "information," "first information" and "second information" can be the same or different information, and their content can be the same or different.

[0082] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0083] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0084] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0085] In some embodiments, devices and the like can be interpreted as physical or virtual, and their names are not limited to those in the embodiments.

[0086] The recorded names, "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and other terms can be used interchangeably.

[0087] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0088] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0089] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0090] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0091] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0092] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0093] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0094] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0095] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0096] As shown in Figure 1, a communication system 100 includes a first terminal 101 and a third terminal 102. The first terminal and the third terminal may communicate via a direct link. Resources used for communication via the direct link may be determined by the first terminal and / or the third terminal, or may be configured by a network device, which may include at least one of the following: an access network device or a core network device.

[0097] In some embodiments, the first terminal 101 and the third terminal 102 include, for example, at least one of a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and a wireless terminal device in a smart home, but are not limited thereto.

[0098] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0099] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0100] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0101] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0102] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0103] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0104] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0105] FIG2 is an interactive schematic diagram illustrating a resource determination method according to an embodiment of the present disclosure.

[0106] As shown in FIG2 , the resource determination method may include the following steps:

[0107] Step S201: The first terminal determines a time domain starting position.

[0108] In some embodiments, the time domain starting position is a first starting position of a cyclic prefix extension of a first transmission of the first terminal in a first time domain unit.

[0109] In some embodiments, the first terminal may determine a first starting position of a cyclic prefix extension for a first transmission in the first time domain unit according to whether there are reserved resources in the first time domain unit.

[0110] In some embodiments, the first starting position is equal to the second starting position of the first symbol plus an interval, and the first symbol is a symbol before the first symbol of the first time domain unit.

[0111] In some embodiments, the first symbol comprises a first symbol preceding a first symbol of the first time domain unit.

[0112] In some embodiments, the first starting position satisfies at least one of the following:

[0113] There are reserved resources in the first time domain unit, and the first starting position is equal to the second starting position plus the first interval;

[0114] There is no reserved resource in the first time domain unit, and the first starting position is equal to the second starting position plus the second interval.

[0115] In some embodiments, the first interval is 16 microseconds.

[0116] In some embodiments, the first starting position is one of a plurality of first starting positions in a first candidate set, wherein each first starting position includes the second starting position plus a first interval.

[0117] In some embodiments, the first starting position is a predefined second starting position plus a first interval.

[0118] In some embodiments, the interval is a first interval, and the first terminal accesses the channel through one of the following methods: Type 2B; Type 2C.

[0119] In some embodiments, the second interval is greater than or equal to 25 microseconds.

[0120] In some embodiments, the first starting position is one of a plurality of first starting positions in a second candidate set, wherein each first starting position includes the second starting position plus a second interval.

[0121] In some embodiments, the first starting position is a predefined second starting position plus a second interval.

[0122] In some embodiments, the interval is a second interval, and the first terminal accesses the channel via Type 2A.

[0123] In some embodiments, the first terminal determines the first starting position according to whether there are reserved resources in the first time domain unit when sharing the channel occupation time of the second terminal.

[0124] In some embodiments, when a first condition is met, it is determined that the first terminal shares the channel occupancy time of the second terminal, wherein the first condition includes at least one of the following:

[0125] The second channel access level value indicated by the second terminal is smaller than the first channel access level value in the channel occupancy time sharing information of the first terminal;

[0126] The type of the first transmission is unicast, and the destination identifier indicated by the first direct link control information of the first terminal matches the source identifier indicated by the reserved direct link control information of the second terminal;

[0127] The type of the first transmission is unicast, and the source identifier indicated by the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0128] The type of the first transmission is multicast or broadcast, and the target identifier indicated by the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0129] The type of the first transmission is unicast, and the source identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0130] The type of the first transmission is unicast, and the target identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the source identifier indicated by the reserved direct link control information of the second terminal;

[0131] The type of the first transmission is multicast or broadcast, and the target identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal.

[0132] In some embodiments, the first terminal sends the first transmission via a direct link.

[0133] In some embodiments, the first terminal sends the first transmission over a direct link in an unlicensed frequency band.

[0134] In some embodiments, the first terminal shares the second terminal's channel occupancy time and sends the first transmission using a direct link in the second terminal's unlicensed frequency band during the channel occupancy time.

[0135] Step S202: The first terminal sends a first transmission to a third terminal.

[0136] In some embodiments, the third terminal receives the first transmission.

[0137] In some embodiments, the first terminal sends the cyclic prefix extension of the first transmission and the first transmission to the third terminal starting from the determined time domain starting position.

[0138] In some embodiments, the third terminal may also determine the above-mentioned time domain starting position.

[0139] In some embodiments, the third terminal receives the cyclic prefix extension of the first transmission of the first terminal and the first transmission starting from the determined time domain starting position.

[0140] The communication method involved in the embodiments of the present disclosure may include at least one of steps S201 and S202. For example, step S201 may be implemented as an independent embodiment, step S202 may be implemented as an independent embodiment, and steps S201+S202 may be implemented as independent embodiments, but are not limited thereto.

[0141] In some embodiments, steps S201 and S202 may be performed in an interchangeable order or simultaneously.

[0142] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0143] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0144] In some embodiments, reference may be made to other optional embodiments described before or after the description corresponding to FIG. 2 .

[0145] In some embodiments, terminals may communicate based on a direct link (sidelink), which may also be referred to as a side link.

[0146] In some embodiments, the channel accessed by the terminal based on direct link communication may include a channel in an unlicensed frequency band.

[0147] In some embodiments, for example, when the second terminal communicates based on a direct link in an unlicensed frequency band, it may first perform Listen Before Talk (LBT) on a channel in the unlicensed frequency band to determine whether the channel is idle.

[0148] When it is determined that the channel is idle, the second terminal may occupy the channel for communication. For example, the duration of occupying the channel may be referred to as channel occupancy time (COT).

[0149] In some embodiments, the first terminal may share the COT of the second terminal. For example, the first terminal may send information based on direct link communication in the above-mentioned channel in a time domain unit within the COT of the second terminal, where the sent information may also be referred to as transmission.

[0150] For example, the time domain unit includes but is not limited to at least one of the following: a frame, a subframe, a time slot, and a symbol, wherein the symbol may be an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0151] In some embodiments, a cyclic prefix extension (CPE) may be provided before transmission of the terminal.

[0152] In some embodiments, the second terminal can send information in the COT, for example, it can send information in multiple consecutive time domain units in the COT, wherein the transmission interval (gap, also referred to as the gap) in each time domain unit can be, for example, 16 microseconds (μs), which is conducive to ensuring that other terminals will not preempt the channel occupied by the second terminal in the unlicensed frequency band within the COT.

[0153] In this case, the first terminal can share the COT of the second terminal. However, before sharing the COT of the second terminal, the terminal must also perform LBT on the channel in the unlicensed frequency band. If the channel in the unlicensed frequency band is determined to be idle, the terminal can then share the COT of the second terminal and send information in the first time domain unit within the COT, which is called the first transmission.

[0154] Because the second terminal also transmits information in the first time domain unit, for example, called a second transmission, if the starting position of the CPE for the second transmission is before the starting position of the CPE for the first transmission, then when the first terminal performs LBT before the starting position of the CPE for the first transmission, it will monitor the CPE for the second transmission and determine that the channel is not idle (also called busy). As a result, it will not send the first transmission, resulting in the first transmission of the terminal in the first time domain unit being blocked. This will affect the communication performance of the first terminal.

[0155] FIG3 is a schematic diagram showing a spacing according to an embodiment of the present disclosure.

[0156] As shown in FIG3 , three slots in COT are taken as an example, namely slot#1, slot#2 and slot#3.

[0157] The second terminal continuously sends information in these three slots based on the direct link. For example, the transmission in slot#1 is called TR#1, the transmission in slot#2 is called TR#2, and the transmission in slot#3 is called TR#3. The CPE of TR#1 is CPE#1, the CPE of TR#2 is CPE#2, and the CPE of TR#3 is CPE#3.

[0158] The first terminal can share the COT of the second terminal. For example, the first terminal can send information in slot #2 in the COT. For example, the sent information is called TR #4, and the CPE of TR #4 is CPE #4.

[0159] As shown in Figure 3, the end position of TR#1 in slot#1 is the start position of the symbol before the first symbol in slot#2, which can also be called the start position of the last symbol in slot#1. The interval between the start position of CPE#2 of TR#2 in slot#2 and the end position of TR#1 in slot#1 is 16 microseconds.

[0160] When the first terminal communicates by sharing the COT of the second terminal, if it needs to send TR#4 in slot#2 and it is determined that there are reserved resources in slot#2, channel access can be performed using Type 2A. When channel access is performed based on Type 2A, the interval between the starting position of CPE#4 of TR#4 and the end position of TR#1 is 25 microseconds.

[0161] It can be seen that the interval between the starting position of CPE#4 of TR#4 and the ending position of TR#1 is 25 microseconds, which is greater than 16 microseconds. This will cause the starting position of CPE#4 to be misaligned with the starting position of CPE#2. For example, as shown in Figure 3, the starting position of CPE#4 is after the starting position of CPE#2. In this case, the first terminal will monitor CPE#2 when performing LBT before sending TR#4 (and CPE#4), so it will determine that the channel is not idle, which will cause the first terminal to not send TR#4 (and CPE#4) in slot#2. It can be seen that this will cause the transmission of TR#4 to be blocked for the first terminal, affecting the communication effect of the first terminal.

[0162] It should be noted that when the length of a symbol is greater than 16 microseconds, the starting position of CPE#2 shown in Figure 3 can be located within the last symbol in slot#1, and the starting position of CPE#4 can also be located within the last symbol in slot#1, or the starting position of CPE#4 can also be the same as the starting position of slot#2, or the starting position of CPE#4 can be located within slot#2. This disclosure does not limit this.

[0163] In a first aspect, embodiments of the present disclosure provide a resource determination method. FIG4 is a schematic flow chart illustrating a resource determination method according to an embodiment of the present disclosure. The resource determination method illustrated in this embodiment can be executed by a first terminal. As shown in FIG4 , the resource determination method may include the following steps:

[0164] In step S401, based on whether there are reserved resources in the first time domain unit, the first starting position of the cyclic prefix extension of the first transmission in the first time domain unit is determined, wherein the first starting position is equal to the second starting position of the first symbol plus the interval, and the first symbol is the symbol before the first symbol of the first time domain unit.

[0165] It should be noted that the embodiment shown in FIG. 4 can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and the present disclosure does not limit it.

[0166] In some embodiments, when the first terminal desires to send information in the first time domain unit (eg, referred to as a first transmission), it may determine whether there are reserved resources in the first time domain unit. For example, the first terminal may send information to the third terminal via a direct link.

[0167] In some embodiments, the reserved resources are reserved resources for the first terminal, or the reserved resources are reserved resources for other terminals, wherein the other terminals include but are not limited to the second terminal, for example, the second terminal or other terminals other than the second terminal.

[0168] For example, the first terminal indicates to other terminals through SCI (Sidelink Control Information) that there are first terminal reserved resources in the first time domain unit. In this case, the first terminal can determine that there are reserved resources in the first time domain unit.

[0169] For example, the first terminal may determine that there are reserved resources for other terminals in the first time domain unit according to the SCI sent by other terminals. In this case, the first terminal may determine that there are reserved resources in the first time domain unit.

[0170] When reserved resources exist in the first time domain unit, other terminals may need to send information in the first time domain unit, which may cause the technical problem described in FIG3 . However, when reserved resources do not exist in the first time domain unit, generally no other terminals need to send information in the first time domain unit, and therefore, the technical problem described in FIG3 generally does not occur.

[0171] In an embodiment of the present disclosure, when a first terminal desires to send information in a first time domain unit, a first starting position of a CPE for a first transmission may be determined based on whether a reserved resource exists in the first time domain unit, wherein the first starting position is equal to the second starting position of a symbol preceding the first symbol of the first time domain unit plus an interval. Accordingly, the determined first starting position is advantageously applicable to the case where a reserved resource exists and a reserved resource does not exist in the first time domain unit, and the first terminal sends the first transmission in the first time domain unit, which is advantageous for ensuring smooth transmission of the first transmission, and further advantageous for ensuring good communication quality of the terminal.

[0172] It should be noted that, in some embodiments, the first transmission of the first terminal in the first time domain unit may be the first transmission sent over an unlicensed frequency band based on a direct link. Of course, this scenario is only one embodiment of the present disclosure. The first transmission in the embodiments of the present disclosure may also be the first transmission in other scenarios, and the present disclosure is not limited to this.

[0173] In some embodiments, the first starting position satisfies at least one of the following:

[0174] There are reserved resources in the first time domain unit, and the first starting position is equal to the second starting position plus the first interval;

[0175] There is no reserved resource in the first time domain unit, and the first starting position is equal to the second starting position plus the second interval.

[0176] The interval between the second starting position of the first symbol and the first starting position of the CPE for the first transmission can be different in the two cases where reserved resources exist in the first time domain unit and in the case where reserved resources do not exist. Specifically, when reserved resources exist in the first time domain unit, the interval between the second starting position of the first symbol and the first starting position of the CPE for the first transmission is the first interval; when reserved resources do not exist in the first time domain unit, the interval between the second starting position of the first symbol and the first starting position of the CPE for the first transmission is the second interval. The first interval and the second interval are exemplified below through several embodiments.

[0177] In some embodiments, the first interval is 16 microseconds. It should be noted that the first interval being 16 microseconds is only an example of the first interval in the embodiment of the present disclosure, and the first interval may not be limited to 16 microseconds, and may be, for example, less than 16 microseconds.

[0178] FIG. 5 is a schematic diagram showing another spacing according to an embodiment of the present disclosure.

[0179] As shown in Figure 5, when the second terminal communicates over a direct link in an unlicensed band, it can first perform listen-before-talk (LBT) on the channel in the unlicensed band to determine whether the channel is idle. If the channel is idle, the second terminal can occupy the channel for communication. For example, the duration of the channel occupation can be called the channel occupation time (COT).

[0180] In some embodiments, the first terminal may share the COT of the second terminal. For example, the first terminal may send information based on direct link communication in the above-mentioned channel in a time domain unit within the COT of the second terminal, where the sent information may also be referred to as transmission.

[0181] For example, the three slots in a COT are slot #1, slot #2, and slot #3. The second terminal continuously transmits information over the direct link in these three slots. For example, the transmission in slot #1 is called TR #1, the transmission in slot #2 is called TR #2, and the transmission in slot #3 is called TR #3. The CPE for TR #1 is CPE #1, the CPE for TR #2 is CPE #2, and the CPE for TR #3 is CPE #3.

[0182] The first terminal can share the COT of the second terminal. For example, the first terminal can send information in slot #2 in the COT. For example, the sent information is called TR #4, and the CPE of TR #4 is CPE #4.

[0183] As shown in Figure 5, the end position of TR#1 in slot#1 is the start position of the symbol before the first symbol in slot#2, which can also be called the start position of the last symbol in slot#1. The interval between the start position of CPE#2 of TR#2 in slot#2 and the end position of TR#1 is 16 microseconds.

[0184] When a first terminal communicates with a second terminal while sharing the COT of the second terminal, and needs to send TR#4 in slot#2, it can determine whether reserved resources exist in slot#2. If reserved resources exist, it can determine that the first starting position of the CPE of TR#4 in slot#2 is equal to the second starting position of the symbol preceding the first symbol of slot#2 plus a first interval, where the first interval is equal to 16 microseconds.

[0185] Since the interval between the start position of CPE#2 in TR#2 and the end position of TR#1 in slot#2 is also 16 microseconds, the start positions of CPE#4 and CPE#2 are the same (aligned). Therefore, the first terminal will not detect CPE#2 when performing LBT before sending TR#4 (and CPE#4). Therefore, the first terminal can determine that the channel is idle and can send TR#4 (and CPE#4) in slot#2. This helps ensure that the first terminal can smoothly send TR#4, thereby ensuring the communication quality of the first terminal.

[0186] It should be noted that the relationship between the starting position of the CPE corresponding to the transmission in the first time domain unit (for example, CPE#2, CPE#4) and the symbol before the first symbol in the time domain unit where the transmission is located is not limited to the starting position of the CPE shown in Figure 5 being located within the symbol before the first symbol in the time domain unit where the transmission is located. For example, the starting position of the CPE can also be the same as the starting position of slot#2, or the starting position of the CPE can be located within slot#2, as long as the starting positions of CPE#4 and CPE#2 are the same (aligned).

[0187] In some embodiments, the first terminal can determine whether to align the first starting position of the cyclic prefix extension of the first transmission in the first time domain unit with the third starting position of the cyclic prefix extension of the first transmission in the first time domain unit of the second terminal based on whether there are reserved resources in the first time domain unit.

[0188] For example, when reserved resources exist in the first time domain unit, the first terminal may determine to align the first starting position with the third starting position; for example, when no reserved resources exist in the first time domain unit, the first terminal may determine not to align the first starting position with the third starting position. The alignment method includes at least one of: advancing the first starting position and delaying the second starting position.

[0189] In some embodiments, when a first terminal communicates by sharing the COT of a second terminal, the CPE corresponding to the first terminal's transmission in the first time domain unit and the CPE corresponding to the second terminal's transmission in the first time domain unit may be different or the same. For example, in the embodiment shown in FIG5 , CPE#2 of TR#2 may be greater than CPE#4 of TR#4.

[0190] In some embodiments, the first symbol comprises a first symbol preceding a first symbol of the first time domain unit.

[0191] For example, in the embodiment shown in Figure 5, the first time domain unit is slot#2, the first symbol is the symbol before the first symbol of slot#2, that is, the last symbol in slot#1. For example, each slot contains 14 symbols, and the first symbol can be the 14th symbol in slot#1.

[0192] Then the first starting position of CEP#2 of TR#2 in slot#2 may be equal to the second starting position of the 14th symbol in slot#1 plus the first interval (eg, 16 microseconds).

[0193] In this embodiment, the first symbol includes the first symbol before the first symbol of the first time domain unit because, in some embodiments, the end position of the second terminal's transmission in a time domain unit preceding the first time domain unit is the start position of the first symbol. For example, in the embodiment shown in Figure 5, the end position of TR#1 of the second terminal in slot#1 is the end position of the 13th symbol in slot#1, which can be equivalent to the start position of the 14th symbol in slot#1.

[0194] It should be noted that the first symbol being the first symbol before the first symbol of the first time domain unit is merely an example of the present disclosure. The first symbol may also be, for example, the second symbol before the first symbol of the first time domain unit, and the present disclosure is not limiting in this regard. In some embodiments, the starting position of the first symbol can be the ending position of the transmission of the second terminal in a time domain unit before the first time domain unit, and the first symbol is not limited to the first symbol before the first symbol of the first time domain unit.

[0195] In some embodiments, the first starting position is one of a plurality of first starting positions in the first candidate set, wherein each first starting position includes the second starting position plus the first interval.

[0196] In some embodiments, the first starting position is the predefined second starting position plus the first interval.

[0197] When reserved resources exist in the first time domain unit, the first starting position may be predefined or determined in a candidate set.

[0198] For example, when there are reserved resources in the first time domain unit, the first terminal can determine that the first starting position of the CPE of the first transmission is predefined to be equal to the second starting position of the symbol before the first symbol of the first time domain unit plus the first interval, for example, the first interval is 16 microseconds.

[0199] For example, the first candidate set includes multiple time domain positions, for example, different time domain positions can be represented by the second starting position plus different intervals. Wherein, when there are reserved resources in the first time domain unit, the first terminal can determine a time domain position in the first candidate set: the second starting position plus the first interval is the first starting position.

[0200] For example, the second starting position may be referred to as T sym_1 , the first candidate set can be {T sym_1 +16μs, value #1, value #2, ...}, that is, the first set can include T sym_1 +16μs and other values.

[0201] For example, for a subcarrier spacing (SCS) of 15 kHz, the first candidate set may be {T sym_1 +16μs,T sym_1 +25μs,T sym_1 +34μs,T sym_1 +43μs,T sym_1 +52μs,T sym_1 +61μs,T sym_0}, where T sym_0 Indicates the starting position of the first symbol of the first time domain unit.

[0202] For example, for 35kHz SCS, the first candidate set is {T sym_1 +16μs,T sym_1 +25μs,T sym_0}, where T sym_0 Indicates the starting position of the first symbol of the first time domain unit.

[0203] For example, for a 65kHz SCS, the first candidate set may be {T sym_1 +16μs,T sym_0}, where T sym_0 Indicates the starting position of the first symbol of the first time domain unit.

[0204] In some embodiments, the first candidate set may be a set of values ​​for CPE window of one-symbol length, which may include any element in any of the above sets, but does not include T sym_1 +16μs, in this case, T sym_1 +16μs can be predefined. Therefore, it is not necessary to add a new element T to the existing combination. sym_1 +16μs, which helps to simplify the operation.

[0205] In some embodiments, when the interval is the first interval, the first terminal accesses the channel through one of the following methods: Type 2B; Type 2C.

[0206] When the interval between the second starting position of the symbol before the first symbol of the first time domain unit and the first starting position of the CPE of the first transmission is the first interval, for example, when the interval is 16 microseconds, the first terminal can access the channel through Type 2B or Type 2C when sharing the COT of the second terminal.

[0207] In some embodiments, the second interval is greater than or equal to 25 microseconds. For example, the second interval may be equal to 25 microseconds. The second interval may also be greater than 25 microseconds, for example, 34 microseconds, 43 microseconds, etc.

[0208] Since there are no reserved resources in the first time domain unit, generally no other terminal needs to transmit information in the first time domain unit, and thus the technical problem described in FIG3 generally does not arise. Therefore, in this case, the interval between the second starting position of the symbol preceding the first symbol of the first time domain unit and the first starting position of the CPE of the first transmission can be determined as the second interval. This eliminates the need to adjust existing protocols, thereby simplifying operations.

[0209] In some embodiments, the first starting position is one of a plurality of first starting positions in the second candidate set, wherein each first starting position includes the second starting position plus a second interval.

[0210] In some embodiments, the first starting position is the predefined second starting position plus a second interval.

[0211] When there is no reserved resource in the first time domain unit, the first starting position may be predefined or determined in a candidate set.

[0212] For example, when there are no reserved resources in the first time domain unit, the first terminal can determine that the first starting position of the CPE of the first transmission is predefined to be equal to the second starting position of the symbol before the first symbol of the first time domain unit plus the second interval, for example, the first interval is 25 microseconds.

[0213] For example, when there is no reserved resource in the first time domain unit, the first terminal may select an element in the second candidate set: the second starting position plus the second interval is the first starting position.

[0214] For example, the second candidate set includes T sym_1 +16μs and other values, other values ​​include T sym_1 +nμs and T sym_0 At least one, n is any value greater than or equal to 25. Then the first terminal can select T in the second set sym_1 Elements outside of +16μs are used as the first starting position.

[0215] For example, the second candidate set includes other values, including T sym_1 +nμs and T sym_0 At least one, n is any value greater than or equal to 25. Then the first terminal can select any element in the second set as the first starting position. sym_1 +16μs may be a predefined value outside the second candidate set.

[0216] In some embodiments, the interval is the second interval, and the first terminal accesses the channel through Type 2A.

[0217] When the interval between the second starting position of the symbol before the first symbol of the first time domain unit and the first starting position of the CPE of the first transmission is the second interval, for example, when the interval is greater than 25 microseconds, the first terminal can access the channel through Type 2A when sharing the COT of the second terminal.

[0218] In some embodiments, determining a first starting position of a cyclic prefix extension for a first transmission in the first time domain unit according to whether a reserved resource exists in the first time domain unit includes:

[0219] The channel occupation time shared by the first terminal and the second terminal is determined, and a first starting position is determined according to whether a reserved resource exists in the first time domain unit.

[0220] In some embodiments, the technical issue illustrated in FIG3 generally arises only when the first terminal shares the COT of the second terminal. Therefore, any of the above embodiments should only be performed when the first terminal can share the COT of the second terminal. For example, when sharing the COT of the second terminal, the steps illustrated in FIG4 are performed to determine the first starting position of the cyclic prefix extension for the first transmission in the first time domain unit based on whether reserved resources exist in the first time domain unit, thereby resolving the technical issue illustrated in FIG3. Furthermore, when the COT of the second terminal is not shared, it is not necessary to perform any of the above embodiments.

[0221] Of course, the first terminal only executes any of the above embodiments when sharing the COT of the second terminal. This is only one of the implementation methods of the present disclosure. The present disclosure can also execute any of the above embodiments in any situation and is not limited to executing any of the above embodiments when the first terminal shares the COT of the second terminal.

[0222] In some embodiments, when a first condition is met, it is determined that the first terminal shares the channel occupancy time of the second terminal, wherein the first condition includes at least one of the following:

[0223] A second channel access priority class (CAPC) value indicated by the second terminal is smaller than a first channel access priority class value in the channel occupancy time sharing information of the first terminal;

[0224] The type of the first transmission is unicast, and the destination ID indicated by the first direct link control information of the first terminal matches the source ID indicated by the reserved direct link control information of the second terminal;

[0225] The type of the first transmission is unicast, and the source identifier indicated by the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0226] The type of the first transmission is multicast or broadcast, and the target identifier indicated by the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0227] The type of the first transmission is unicast, and the source identifier indicated by the additional ID in the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0228] The type of the first transmission is unicast, and the target identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the source identifier indicated by the reserved direct link control information of the second terminal;

[0229] The type of the first transmission is multicast or broadcast, and the target identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal.

[0230] It should be noted that when two IDs match, the two IDs may be exactly the same, or they may not be exactly the same, but partially the same. For example, the lower 8 or 16 bits of the two IDs in the physical layer may be the same, while the remaining 16 or 8 bits may be included in the Media Access Control (MAC) layer, and these bits of the two IDs in the MAC layer may be different.

[0231] In some embodiments, a first terminal may indicate a first CAPC value to other terminals via a first SCI, and the first terminal may receive a second SCI sent by a second terminal and determine a second CAPC value indicated by the second SCI. When the second CAPC value is less than the first CAPC value, the first terminal may determine that the first terminal has a higher priority for channel access, so that within the COT of the second terminal, the first terminal may access the channel occupied by the second terminal in the unlicensed frequency band, thereby achieving sharing of the COT.

[0232] The second terminal may indicate the second CAPC value in an explicit manner. For example, the second terminal may carry the second CAPC value in the first SCI or the second SCI and send it to the first terminal.

[0233] The second terminal may indicate the second CAPC value in an implicit manner. For example, the second terminal may implicitly indicate the second CAPC value by indicating a priority. For example, the indicated priority range is 0-7, and the corresponding second CAPC value is 0-3. Specifically, for example, priorities 0 and 1 correspond to a second CAPC value of 0, priorities 2 and 3 correspond to a second CAPC value of 1, priorities 4 and 5 correspond to a second CAPC value of 2, and priorities 6 and 7 correspond to a second CAPC value of 3.

[0234] In some embodiments, when the type of the first transmission in the first time domain unit is unicast, the first terminal may determine whether the ID indicated by the first SCI matches the ID indicated by the reserved SCI of the second terminal.

[0235] For example, the destination ID indicated by the first SCI matches the Source ID indicated by the reserved SCI of the second terminal (that is, the ID of the second terminal). The first terminal can determine that the target terminal to which the first terminal wants to send the first transmission in the reserved resources is the second terminal, which satisfies the premise that the second terminal can share the COT, so that the first terminal can share the COT of the second terminal.

[0236] For example, the Source ID in the additional ID (for example, called the ID of the third terminal) indicated by the first SCI matches the destination ID indicated by the reserved SCI of the second terminal. The first terminal can determine that both the first terminal and the second terminal will send information to the third terminal in the reserved resources, which satisfies the premise that the second terminal can share the COT, so that the first terminal can share the COT of the second terminal.

[0237] In some embodiments, when the type of the first transmission in the first time domain unit is multicast or broadcast, the first terminal may determine whether the destination ID indicated by the first SCI matches the destination ID indicated by the reserved SCI of the second terminal.

[0238] For example, when the type of the first transmission is multicast or broadcast, the first terminal can send the first transmission to a terminal group in the first time domain unit, for example, called Group#1. Then when the destination ID indicated by the first SCI (for example, Group#1) matches the destination ID indicated by the reserved SCI of the second terminal, that is, the target of the second terminal sending information in the reserved resources is also Group#1, which satisfies the premise that the second terminal can share the COT, so that the first terminal can share the COT of the second terminal.

[0239] In a second aspect, embodiments of the present disclosure provide a resource determination method. FIG6 is a schematic flow chart illustrating a resource determination method according to an embodiment of the present disclosure. The resource determination method illustrated in this embodiment can be executed by a third terminal. As shown in FIG6 , the resource determination method may include the following steps:

[0240] In step S601, based on whether reserved resources exist in the first time domain unit, a first starting position of a cyclic prefix extension for a first transmission of a first terminal in the first time domain unit is determined, where the first starting position is equal to a second starting position of a first symbol plus an interval, and the first symbol is a symbol before a first symbol of the first time domain unit;

[0241] In step S602, a first transmission of a first terminal in a first time domain unit is received according to a first starting position.

[0242] It should be noted that the embodiment shown in FIG. 6 can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and the present disclosure does not limit it.

[0243] In some embodiments, when a third terminal needs to receive information sent by the first terminal in a first time domain unit (e.g., referred to as a first transmission), it can determine whether there are reserved resources in the first time domain unit. For example, the third terminal can receive the information sent by the first terminal via a direct link.

[0244] In some embodiments, the reserved resources are reserved resources for the first terminal, or the reserved resources are reserved resources for other terminals, wherein the other terminals include but are not limited to the second terminal, for example, the second terminal or other terminals other than the second terminal.

[0245] For example, the first terminal indicates to other terminals through the SCI that there are first terminal reserved resources in the first time domain unit. In this case, the first terminal can determine that there are reserved resources in the first time domain unit.

[0246] For example, the first terminal may determine that there are reserved resources for other terminals in the first time domain unit according to the SCI sent by other terminals. In this case, the first terminal may determine that there are reserved resources in the first time domain unit.

[0247] When reserved resources exist in the first time domain unit, other terminals may need to send information in the first time domain unit, which may cause the technical problem described in FIG3 . However, when reserved resources do not exist in the first time domain unit, generally no other terminals need to send information in the first time domain unit, and therefore, the technical problem described in FIG3 generally does not occur.

[0248] In an embodiment of the present disclosure, when a third terminal needs to receive a first transmission of a first terminal in a first time domain unit, a first starting position of a CPE of the first transmission of the first terminal can be determined based on whether a reserved resource exists in the first time domain unit, wherein the first starting position is equal to the second starting position of a symbol preceding the first symbol of the first time domain unit plus an interval. Accordingly, the determined first starting position is advantageously applicable to the case where a reserved resource exists and a reserved resource does not exist in the first time domain unit, and the first terminal sends the first transmission in the first time domain unit, which is advantageous for ensuring smooth transmission of the first transmission, and further advantageous for ensuring good communication quality of the terminal.

[0249] It should be noted that, in some embodiments, the first transmission of the first terminal in the first time domain unit may be the first transmission sent over an unlicensed frequency band based on a direct link. Of course, this scenario is only one embodiment of the present disclosure. The first transmission in the embodiments of the present disclosure may also be the first transmission in other scenarios, and the present disclosure is not limited to this.

[0250] In some embodiments, the first starting position satisfies at least one of the following:

[0251] There are reserved resources in the first time domain unit, and the first starting position is equal to the second starting position plus the first interval;

[0252] There is no reserved resource in the first time domain unit, and the first starting position is equal to the second starting position plus the second interval.

[0253] The interval between the second starting position of the first symbol and the first starting position of the CPE for the first transmission can be different in the two cases where reserved resources exist in the first time domain unit and in the case where reserved resources do not exist. Specifically, when reserved resources exist in the first time domain unit, the interval between the second starting position of the first symbol and the first starting position of the CPE for the first transmission is the first interval; when reserved resources do not exist in the first time domain unit, the interval between the second starting position of the first symbol and the first starting position of the CPE for the first transmission is the second interval. The first interval and the second interval are exemplified below through several embodiments.

[0254] In some embodiments, the first interval is 16 microseconds. It should be noted that the first interval being 16 microseconds is only an example of the first interval in the embodiment of the present disclosure, and the first interval may not be limited to 16 microseconds, and may be, for example, less than 16 microseconds.

[0255] As shown in FIG5 , three slots in COT are taken as an example, namely slot#1, slot#2 and slot#3.

[0256] The second terminal continuously sends information in these three slots based on the direct link. For example, the transmission in slot#1 is called TR#1, the transmission in slot#2 is called TR#2, and the transmission in slot#3 is called TR#3. The CPE of TR#1 is CPE#1, the CPE of TR#2 is CPE#2, and the CPE of TR#3 is CPE#3.

[0257] The first terminal can share the COT of the second terminal. For example, the first terminal can send information in slot #2 in the COT. For example, the sent information is called TR #4, and the CPE of TR #4 is CPE #4.

[0258] As shown in Figure 5, the end position of TR#1 in slot#1 is the start position of the symbol before the first symbol in slot#2, which can also be called the start position of the last symbol in slot#1. The interval between the start position of CPE#2 of TR#2 in slot#2 and the end position of TR#1 is 16 microseconds.

[0259] When the third terminal determines that the first terminal shares the COT of the second terminal for communication, if it needs to receive TR#4 sent by the first terminal in slot#2, it can determine whether reserved resources exist in slot#2. If reserved resources exist, it can determine that the first starting position of the CPE of TR#4 in slot#2 is equal to the second starting position of the symbol before the first symbol of slot#2 plus the first interval, where the first interval is equal to 16 microseconds.

[0260] Since the interval between the start position of CPE#2 in TR#2 and the end position of TR#1 in slot#2 is also 16 microseconds, the start positions of CPE#4 and CPE#2 are the same (aligned). Therefore, the first terminal will not detect CPE#2 when performing LBT before sending TR#4 (and CPE#4). Therefore, it can be determined that the channel is idle, and the first terminal can send TR#4 (and CPE#4) in slot#2. This helps ensure that the first terminal can smoothly send TR#4, and further ensure that the third terminal can smoothly receive TR#4 sent by the first terminal, thus ensuring the communication effect between the third terminal and the first terminal.

[0261] It should be noted that the relationship between the starting position of the CPE corresponding to the transmission in the first time domain unit (for example, CPE#2, CPE#4) and the symbol before the first symbol in the time domain unit where the transmission is located is not limited to the starting position of the CPE shown in Figure 5 being located within the symbol before the first symbol in the time domain unit where the transmission is located. For example, the starting position of the CPE can also be the same as the starting position of slot#2, or the starting position of the CPE can be located within slot#2, as long as the starting positions of CPE#4 and CPE#2 are the same (aligned).

[0262] In some embodiments, the third terminal can determine whether the first starting position of the cyclic prefix extension of the first transmission in the first time domain unit is aligned with the third starting position of the cyclic prefix extension of the first transmission in the first time domain unit of the second terminal based on whether reserved resources exist in the first time domain unit.

[0263] For example, when reserved resources exist in the first time domain unit, the third terminal may determine that the first starting position is aligned with the third starting position; for example, when no reserved resources exist in the first time domain unit, the third terminal may determine that the first starting position is not aligned with the third starting position. The alignment method includes at least one of the following: advancing the first starting position and delaying the second starting position.

[0264] In some embodiments, when a first terminal communicates by sharing the COT of a second terminal, the CPE corresponding to the first terminal's transmission in the first time domain unit and the CPE corresponding to the second terminal's transmission in the first time domain unit may be different or the same. For example, in the embodiment shown in FIG5 , CPE#2 of TR#2 may be greater than CPE#4 of TR#4.

[0265] In some embodiments, the first symbol comprises a first symbol preceding a first symbol of the first time domain unit.

[0266] For example, in the embodiment shown in Figure 5, the first time domain unit is slot#2, the first symbol is the symbol before the first symbol of slot#2, that is, the last symbol in slot#1. For example, each slot contains 14 symbols, and the first symbol can be the 14th symbol in slot#1.

[0267] Then the first starting position of CEP#2 of TR#2 in slot#2 may be equal to the second starting position of the 14th symbol in slot#1 plus the first interval (eg, 16 microseconds).

[0268] In this embodiment, the first symbol includes the first symbol before the first symbol of the first time domain unit because, in some embodiments, the end position of the second terminal's transmission in a time domain unit preceding the first time domain unit is the start position of the first symbol. For example, in the embodiment shown in Figure 5, the end position of TR#1 of the second terminal in slot#1 is the end position of the 13th symbol in slot#1, which can be equivalent to the start position of the 14th symbol in slot#1.

[0269] It should be noted that the first symbol being the first symbol before the first symbol of the first time domain unit is merely an example of the present disclosure. The first symbol may also be, for example, the second symbol before the first symbol of the first time domain unit, and the present disclosure is not limiting in this regard. In some embodiments, the starting position of the first symbol can be the ending position of the transmission of the second terminal in a time domain unit before the first time domain unit, and the first symbol is not limited to the first symbol before the first symbol of the first time domain unit.

[0270] In some embodiments, the first starting position is one of a plurality of first starting positions in the first candidate set, wherein each first starting position includes the second starting position plus the first interval.

[0271] In some embodiments, the first starting position is the predefined second starting position plus the first interval.

[0272] When reserved resources exist in the first time domain unit, the first starting position may be predefined or determined in a candidate set.

[0273] For example, when there are reserved resources in the first time domain unit, the first terminal can determine that the first starting position of the CPE of the first transmission is predefined to be equal to the second starting position of the symbol before the first symbol of the first time domain unit plus the first interval, for example, the first interval is 16 microseconds.

[0274] For example, the first candidate set includes multiple time domain positions, for example, different time domain positions can be represented by the second starting position plus different intervals. Wherein, when there are reserved resources in the first time domain unit, the first terminal can determine a time domain position in the first candidate set: the second starting position plus the first interval is the first starting position.

[0275] For example, the second starting position may be referred to as T sym_1 , the first candidate set can be {T sym_1 +16μs, value #1, value #2, ...}, that is, the first set can include T sym_1 +16μs and other values.

[0276] For example, for a subcarrier spacing (SCS) of 15 kHz, the first candidate set may be {T sym_1 +16μs,T sym_1 +25μs,T sym_1 +34μs,T sym_1 +43μs,T sym_1 +52μs,T sym_1 +61μs,T sym_0}, where T sym_0 Indicates the starting position of the first symbol of the first time domain unit.

[0277] For example, for 35kHz SCS, the first candidate set is {T sym_1 +16μs,T sym_1 +25μs,T sym_0}, where T sym_0 Indicates the starting position of the first symbol of the first time domain unit.

[0278] For example, for a 65kHz SCS, the first candidate set may be {T sym_1 +16μs,T sym_0}, where T sym_0 Indicates the starting position of the first symbol of the first time domain unit.

[0279] In some embodiments, the first candidate set may be a set of values ​​for CPE window of one-symbol length, which may include any element in any of the above sets, but does not include T sym_1 +16μs, in this case, T sym_1 +16μs can be predefined. Therefore, it is not necessary to add a new element T to the existing combination. sym_1 +16μs, which helps to simplify the operation.

[0280] In some embodiments, when the interval is the first interval, the first terminal accesses the channel through one of the following methods: Type 2B; Type 2C.

[0281] When the interval between the second starting position of the symbol before the first symbol of the first time domain unit and the first starting position of the CPE of the first transmission is the first interval, for example, when the interval is 16 microseconds, the first terminal can access the channel through Type 2B or Type 2C when sharing the COT of the second terminal.

[0282] In some embodiments, the second interval is greater than or equal to 25 microseconds. For example, the second interval may be equal to 25 microseconds. The second interval may also be greater than 25 microseconds, for example, 34 microseconds, 43 microseconds, etc.

[0283] Since there are no reserved resources in the first time domain unit, generally no other terminal needs to transmit information in the first time domain unit, and thus the technical problem described in FIG3 generally does not arise. Therefore, in this case, the interval between the second starting position of the symbol preceding the first symbol of the first time domain unit and the first starting position of the CPE of the first transmission can be determined as the second interval. This eliminates the need to adjust existing protocols, thereby simplifying operations.

[0284] In some embodiments, the first starting position is one of a plurality of first starting positions in the second candidate set, wherein each first starting position includes the second starting position plus a second interval.

[0285] In some embodiments, the first starting position is the predefined second starting position plus a second interval.

[0286] When there is no reserved resource in the first time domain unit, the first starting position may be predefined or determined in a candidate set.

[0287] For example, when there are no reserved resources in the first time domain unit, the first terminal can determine that the first starting position of the CPE of the first transmission is predefined to be equal to the second starting position of the symbol before the first symbol of the first time domain unit plus the second interval, for example, the first interval is 25 microseconds.

[0288] For example, when there is no reserved resource in the first time domain unit, the first terminal may select an element in the second candidate set: the second starting position plus the second interval is the first starting position.

[0289] For example, the second candidate set includes T sym_1 +16μs and other values, other values ​​include T sym_1 +nμs and T sym_0 At least one, n is any value greater than or equal to 25. Then the first terminal can select T in the second set sym_1 Elements outside of +16μs are used as the first starting position.

[0290] For example, the second candidate set includes other values, including T sym_1 +nμs and T sym_0 At least one, n is any value greater than or equal to 25. Then the first terminal can select any element in the second set as the first starting position. sym_1 +16μs may be a predefined value outside the second candidate set.

[0291] In some embodiments, the interval is the second interval, and the first terminal accesses the channel through Type 2A.

[0292] When the interval between the second starting position of the symbol before the first symbol of the first time domain unit and the first starting position of the CPE of the first transmission is the second interval, for example, when the interval is greater than 25 microseconds, the first terminal can access the channel through Type 2A when sharing the COT of the second terminal.

[0293] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0294] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0295] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0296] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0297] In some embodiments, terms such as "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "symbol", and "transmission time interval (TTI)" can be used interchangeably.

[0298] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0299] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0300] It should be noted that for other contents involved in this embodiment, please refer to the description of the relevant contents in the previous embodiments, which will not be repeated here.

[0301] Corresponding to the aforementioned embodiments of the resource determination method, the present disclosure also provides embodiments of a resource determination apparatus and a terminal.

[0302] The implementation of the present disclosure also proposes a terminal, comprising: one or more processors; a memory coupled to the one or more processors, wherein the memory stores executable instructions, and when the executable instructions are executed by the one or more processors, the terminal executes the resource determination method described in any one of the first aspect and the optional embodiments of the first aspect.

[0303] FIG7 is a schematic block diagram of a resource determination device according to an embodiment of the present disclosure. As shown in FIG7 , the resource determination device includes: a processing module 701 .

[0304] In some embodiments, the processing module is used to determine a first starting position of a cyclic prefix extension of a first transmission in the first time domain unit based on whether reserved resources exist in the first time domain unit, wherein the first starting position is equal to the second starting position of the first symbol plus an interval, and the first symbol is a symbol before the first symbol of the first time domain unit.

[0305] In some embodiments, the first symbol comprises a first symbol preceding a first symbol of the first time domain unit.

[0306] In some embodiments, the first starting position satisfies at least one of the following:

[0307] There are reserved resources in the first time domain unit, and the first starting position is equal to the second starting position plus the first interval;

[0308] There is no reserved resource in the first time domain unit, and the first starting position is equal to the second starting position plus the second interval.

[0309] In some embodiments, the first interval is 16 microseconds.

[0310] In some embodiments, the first starting position is one of a plurality of first starting positions in a first candidate set, wherein each first starting position includes the second starting position plus a first interval.

[0311] In some embodiments, the first starting position is a predefined second starting position plus a first interval.

[0312] In some embodiments, the interval is a first interval, and the first terminal accesses the channel through one of the following methods: Type 2B; Type 2C.

[0313] In some embodiments, the second interval is greater than or equal to 25 microseconds.

[0314] In some embodiments, the first starting position is one of a plurality of first starting positions in a second candidate set, wherein each first starting position includes the second starting position plus a second interval.

[0315] In some embodiments, the first starting position is a predefined second starting position plus a second interval.

[0316] In some embodiments, the interval is a second interval, and the first terminal accesses the channel via Type 2A.

[0317] In some embodiments, determining, based on whether reserved resources exist in the first time domain unit, a first starting position of cyclic prefix extension for the first transmission in the first time domain unit includes:

[0318] Determine the channel occupation time shared by the first terminal with the second terminal, and determine the first starting position according to whether there are reserved resources in the first time domain unit.

[0319] In some embodiments, when a first condition is met, it is determined that the first terminal shares the channel occupancy time of the second terminal, wherein the first condition includes at least one of the following:

[0320] The second channel access level value indicated by the second terminal is smaller than the first channel access level value in the channel occupancy time sharing information of the first terminal;

[0321] The type of the first transmission is unicast, and the destination identifier indicated by the first direct link control information of the first terminal matches the source identifier indicated by the reserved direct link control information of the second terminal;

[0322] The type of the first transmission is unicast, and the source identifier indicated by the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0323] The type of the first transmission is multicast or broadcast, and the target identifier indicated by the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0324] The type of the first transmission is unicast, and the source identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal;

[0325] The type of the first transmission is unicast, and the target identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the source identifier indicated by the reserved direct link control information of the second terminal;

[0326] The type of the first transmission is multicast or broadcast, and the target identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal.

[0327] It should be noted that the resource determination device can be set in a first terminal used to execute the resource determination method described in any one of the first aspect and the optional embodiments of the first aspect. In addition to the above-mentioned processing module and transceiver module, the first terminal may also include other modules, such as a storage module, a display module, etc.

[0328] The implementation of the present disclosure also proposes a terminal, comprising: one or more processors; a memory coupled to the one or more processors, wherein the memory stores executable instructions, and when the executable instructions are executed by the one or more processors, the terminal executes the resource determination method described in any one of the second aspect and the optional embodiments of the second aspect.

[0329] FIG8 is a schematic block diagram of a resource determination device according to an embodiment of the present disclosure. As shown in FIG8 , the resource determination device includes a processing module 801 and a transceiver module 802 .

[0330] In some embodiments, a processing module is used to determine a first starting position of a cyclic prefix extension of a first transmission of a first terminal in the first time domain unit based on whether reserved resources exist in the first time domain unit, wherein the first starting position is equal to the second starting position of a first symbol plus an interval, and the first symbol is a symbol before the first symbol of the first time domain unit; and a transceiver module is used to start receiving the first transmission of the first terminal in the first time domain unit based on the first starting position.

[0331] In some embodiments, the first symbol comprises a first symbol preceding a first symbol of the first time domain unit.

[0332] In some embodiments, the first starting position satisfies at least one of the following:

[0333] There are reserved resources in the first time domain unit, and the first starting position is equal to the second starting position plus the first interval;

[0334] There is no reserved resource in the first time domain unit, and the first starting position is equal to the second starting position plus the second interval.

[0335] In some embodiments, the first interval is 16 microseconds.

[0336] In some embodiments, the first starting position is one of a plurality of first starting positions in a first candidate set, wherein each first starting position includes the second starting position plus a first interval.

[0337] In some embodiments, the first starting position is a predefined second starting position plus a first interval.

[0338] In some embodiments, the second interval is greater than or equal to 25 microseconds.

[0339] In some embodiments, the first starting position is one of a plurality of first starting positions in a second candidate set, wherein each first starting position includes the second starting position plus a second interval.

[0340] In some embodiments, the first starting position is a predefined second starting position plus a second interval.

[0341] It should be noted that the resource determination device can be set in a third terminal for executing the resource determination method described in any one of the second aspect and the optional embodiments of the second aspect. In addition to the above-mentioned processing module and transceiver module, the third terminal may also include other modules, such as a storage module, a display module, etc.

[0342] For the device embodiment, since it basically corresponds to the method embodiment, the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art can understand and implement it without paying any creative work.

[0343] An embodiment of the present disclosure also proposes a terminal, comprising: one or more processors; a memory coupled to the one or more processors, wherein the memory stores executable instructions, and when the executable instructions are executed by the one or more processors, the terminal executes the resource determination method described in any one of the first aspect, the second aspect, the optional embodiment of the first aspect, and the optional embodiment of the second aspect.

[0344] An embodiment of the present disclosure also proposes a communication device, comprising: one or more processors; wherein the processor is used to call instructions to enable the communication device to execute the resource determination method described in any one of the first aspect, the second aspect, the optional embodiment of the first aspect, and the optional embodiment of the second aspect.

[0345] An embodiment of the present disclosure further proposes a communication system, including a first terminal and a third terminal, wherein the first terminal is configured to implement the resource determination method described in any one of the first aspect and the optional embodiments of the first aspect.

[0346] An embodiment of the present disclosure further proposes a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the resource determination method described in any one of the second aspect and the optional embodiments of the second aspect.

[0347] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0348] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0349] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0350] Figure 9 is a schematic diagram of the structure of a communication device 9100 proposed in an embodiment of the present disclosure. Communication device 9100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 9100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0351] As shown in Figure 9, the communication device 9100 includes one or more processors 9101. The processor 9101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 9101 is used to call instructions to enable the communication device 9100 to perform any of the above methods.

[0352] In some embodiments, the communication device 9100 further includes one or more memories 9102 for storing instructions. Optionally, all or part of the memories 9102 may be located outside the communication device 9100.

[0353] In some embodiments, the communication device 9100 further includes one or more transceivers 9103. When the communication device 9100 includes one or more transceivers 9103, the communication steps such as sending and receiving in the above method are performed by the transceiver 9103, and the other steps are performed by the processor 9101.

[0354] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0355] Optionally, the communication device 9100 further includes one or more interface circuits 9104, which are connected to the memory 9102. The interface circuits 9104 can be used to receive signals from the memory 9102 or other devices, and can be used to send signals to the memory 9102 or other devices. For example, the interface circuits 9104 can read instructions stored in the memory 9102 and send the instructions to the processor 9101.

[0356] The communication device 9100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 9100 described in the present disclosure is not limited thereto, and the structure of the communication device 9100 may not be limited by FIG. 9 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0357] FIG10 is a schematic diagram of the structure of a chip 10200 according to an embodiment of the present disclosure. If the communication device 9100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 10200 shown in FIG10 , but the present disclosure is not limited thereto.

[0358] Chip 10200 includes one or more processors 10201, and processor 10201 is used to call instructions to enable chip 10200 to execute any of the above methods.

[0359] In some embodiments, the chip 10200 further includes one or more interface circuits 10202, which are connected to the memory 10203. The interface circuit 10202 can be used to receive signals from the memory 10203 or other devices, and can be used to send signals to the memory.

[0360] 10203 or other devices to send signals. For example, the interface circuit 10202 can read the instructions stored in the memory 10203 and send the instructions to the processor 10201. Optionally, the terms interface circuit, interface, transceiver pin, transceiver, etc. can be used interchangeably.

[0361] In some embodiments, the chip 10200 further includes one or more memories 10203 for storing instructions. Alternatively, all or part of the memories 10203 may be outside the chip 10200.

[0362] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 9100, causes the communication device 9100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0363] The present disclosure also provides a program product, which, when executed by the communication device 9100, enables the communication device 9100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0364] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A resource determination method, characterized in that: The method is performed by a first terminal and includes: According to whether there are reserved resources in the first time domain unit, determine the first starting position of the cyclic prefix extension of the first transmission in the first time domain unit, wherein the first starting position is equal to the second starting position of the first symbol plus an interval, and the first symbol is the symbol before the first symbol of the first time domain unit.

2. The method according to claim 1, characterized in that The first symbol includes a first symbol before a first symbol of the first time domain unit.

3. The method according to claim 1 or 2, characterized in that: The first starting position satisfies at least one of the following: There are reserved resources in the first time domain unit, and the first starting position is equal to the second starting position plus the first interval; There is no reserved resource in the first time domain unit, and the first starting position is equal to the second starting position plus the second interval.

4. The method according to claim 3, characterized in that The first interval is 16 microseconds.

5. The method according to claim 3 or 4, characterized in that: The first starting position is one of a plurality of first starting positions in a first candidate set, wherein each first starting position includes a second starting position plus a first interval.

6. The method according to claim 3 or 4, characterized in that: The first starting position is a predefined second starting position plus a first interval.

7. The method according to any one of claims 3 to 6, characterized in that The interval is a first interval, and the first terminal performs channel access in one of the following ways: Type 2B; Type 2C.

8. The method according to any one of claims 3 to 7, characterized in that The second interval is greater than or equal to 25 microseconds.

9. The method according to claim 3 or 8, characterized in that: The first starting position is one of a plurality of first starting positions in the second candidate set, wherein each first starting position includes a second starting position plus a second interval.

10. The method according to claim 3 or 8, characterized in that: The first starting position is a predefined second starting position plus a second interval.

11. The method according to any one of claims 3, 8 to 10, characterized in that: The interval is a second interval, and the first terminal accesses the channel through Type 2A.

12. The method according to any one of claims 1 to 11, characterized in that The determining, according to whether there are reserved resources in the first time domain unit, a first starting position of a cyclic prefix extension for a first transmission in the first time domain unit comprises: Determine the channel occupation time that the first terminal shares with the second terminal, and determine the first starting position according to whether there are reserved resources in the first time domain unit.

13. The method according to claim 12, characterized in that When a first condition is met, determining that the first terminal shares the channel occupation time of the second terminal, wherein the first condition includes at least one of the following: The second channel access level value indicated by the second terminal is smaller than the first channel access level value in the channel occupancy time sharing information of the first terminal; The type of the first transmission is unicast, and the target identifier indicated by the first direct link control information of the first terminal matches the source identifier indicated by the reserved direct link control information of the second terminal; The type of the first transmission is unicast, and the source identifier indicated by the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal; The type of the first transmission is multicast or broadcast, and the target identifier indicated by the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal; The type of the first transmission is unicast, and the source identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal; The type of the first transmission is unicast, and the target identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the source identifier indicated by the reserved direct link control information of the second terminal; The type of the first transmission is multicast or broadcast, and the target identifier indicated by the additional identifier in the first direct link control information of the first terminal matches the target identifier indicated by the reserved direct link control information of the second terminal.

14. A resource determination method, characterized in that: Executed by a third terminal, the method includes: Determine, according to whether there are reserved resources in the first time domain unit, a first starting position of a cyclic prefix extension of a first transmission of the first terminal in the first time domain unit, wherein the first starting position is equal to a second starting position of a first symbol plus an interval, and the first symbol is a symbol before a first symbol of the first time domain unit; The first transmission of the first terminal in the first time domain unit is received starting according to the first starting position.

15. The method according to claim 14, characterized in that The first symbol includes a first symbol before a first symbol of the first time domain unit.

16. The method according to claim 14 or 15, characterized in that The first starting position satisfies at least one of the following: There are reserved resources in the first time domain unit, and the first starting position is equal to the second starting position plus the first interval; There is no reserved resource in the first time domain unit, and the first starting position is equal to the second starting position plus the second interval.

17. The method according to claim 16, characterized in that The first interval is 16 microseconds.

18. The method according to claim 16 or 17, characterized in that The first starting position is one of a plurality of first starting positions in a first candidate set, wherein each first starting position includes a second starting position plus a first interval.

19. The method according to claim 16 or 17, characterized in that The first starting position is a predefined second starting position plus a first interval.

20. The method according to any one of claims 16 to 19, characterized in that The second interval is greater than or equal to 25 microseconds.

21. The method according to claim 16 or 20, characterized in that The first starting position is one of a plurality of first starting positions in the second candidate set, wherein each first starting position includes a second starting position plus a second interval.

22. The method according to claim 16 or 20, characterized in that The first starting position is a predefined second starting position plus a second interval.

23. A terminal, characterized in that: include: one or more processors; A memory coupled to the one or more processors, wherein executable instructions are stored in the memory, and when the executable instructions are executed by the one or more processors, the terminal executes the resource determination method according to any one of claims 1-13 and 14-22.

24. A resource determination device, characterized in that: include: A processing module is used to determine a first starting position of a cyclic prefix extension of a first transmission in a first time domain unit according to whether there are reserved resources in the first time domain unit, wherein the first starting position is equal to a second starting position of a first symbol plus an interval, and the first symbol is a symbol before the first symbol of the first time domain unit.

25. A resource determination device, characterized in that: include: a processing module, configured to determine, according to whether there are reserved resources in the first time domain unit, a first starting position of a cyclic prefix extension of a first transmission of the first terminal in the first time domain unit, wherein the first starting position is equal to a second starting position of a first symbol plus an interval, and the first symbol is a symbol before a first symbol of the first time domain unit; The transceiver module is used to start receiving the first transmission of the first terminal in the first time domain unit according to the first starting position.

26. A communication device, characterized in that: include: one or more processors; The processor is used to call instructions to enable the communication device to execute the resource determination method described in any one of claims 1-13 and 14-22.

27. A communication system, characterized in that: The method comprises a first terminal and a third terminal, wherein the first terminal is configured to implement the resource determination method according to any one of claims 1 to 13, and the third terminal is configured to implement the resource determination method according to any one of claims 14 to 22.

28. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the resource determination method according to any one of claims 1-13 and 14-22.

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