CN117676827A

CN117676827A - Channel occupation time sharing method and device, terminal equipment and chip

Info

Publication number: CN117676827A
Application number: CN202210956652.7A
Authority: CN
Inventors: 陈咪咪; 丁昱; 刘浩文
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2024-03-08
Also published as: WO2024032731A1

Abstract

The application discloses a method and a device for sharing time occupied by a channel, terminal equipment and a chip, and relates to the technical field of communication; the method comprises the following steps: transmitting COT sharing information, wherein the interval between the time domain position where the COT sharing information is transmitted and the time domain position where the data transmission of the terminal equipment of the shared COT is located is larger than or equal to a first interval, the COT sharing information is used for indicating relevant information of the COT shared to the terminal equipment of the shared COT, and the first interval is defined by network configuration, pre-configuration or protocol; correspondingly, receiving the COT sharing information. It can be seen that, since the interval is greater than or equal to the first interval, the terminal device sharing the COT has time to perform processing operations such as decoding the COT sharing information, so that the terminal device sharing the COT can use the COT indicated by the COT sharing information to realize the COT sharing, thereby realizing enhancement of the COT sharing mechanism in the SL-U system.

Description

Channel occupation time sharing method and device, terminal equipment and chip

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for sharing time occupied by a channel, a terminal device, and a chip.

Background

The standard protocol defined by the third generation partnership project organization (3rd Generation Partnership Project,3GPP) defines a Channel time-of-occupation (Channel OccupancyTime, COT) sharing mechanism to increase the probability of a device accessing/acquiring a Channel by the COT sharing mechanism.

For example, in the COT sharing mechanism of a new air interface (New Radio in Unlicensed Spectrum, NR-U) system of an unlicensed band, an initiating device (e.g., a terminal device or a network device) may perform listen-before-talk (Listen Before Talk, LBT) on the unlicensed band. If LBT is successful, the initiating device may access/acquire the channel for a period of time, which may be denoted as COT. The initiating device may then share the COT with a responding device (e.g., a network device or a terminal device) so that the responding device may increase the probability of accessing/acquiring channels within the COT or access/acquire channels with a higher probability within the COT.

In addition, in the NR-U system, the network device may centrally control a transmission procedure of the initiating device and/or the responding device under the COT sharing, so as to ensure continuous transmission within the sharing COT through the centralized control, so that an interval (gap) between two transmissions within the sharing COT satisfies a transmission requirement, and so that the responding device can use the COT shared by the initiating device, and so on.

However, in an unlicensed band secondary link (Sidelink in Unlicensed Spectrum, SL-U) system, the transmission process of the initiating device and/or the responding device under the COT sharing may not need to be controlled centrally by the network device, unlike the NR-U system, so that the COT sharing mechanism in the NR-U system may no longer be applicable to the SL-U system. Therefore, further research is needed how to enhance the COT sharing mechanism to adapt to the SL-U system.

Disclosure of Invention

The application provides a channel occupation time sharing method and device, terminal equipment and a chip, so as to be expected to solve the problem of enhancing a COT sharing mechanism in an SL-U system.

The first aspect is a method for sharing channel occupation time, which is applied to terminal equipment sharing channel occupation time COT; the method comprises the following steps:

and sending COT sharing information, wherein the interval between the time domain position where the COT sharing information is sent and the time domain position where the data transmission of the terminal equipment of the shared COT is located is larger than or equal to a first interval, the COT sharing information is used for indicating relevant information of COT shared to the terminal equipment of the shared COT, and the first interval is defined by network configuration, pre-configuration or protocol.

It can be seen that, in the SL-U system, in order for the terminal device sharing the COT to use the COT shared by the terminal device sharing the COT, the present application introduces a first interval such that an interval between a time domain position where the COT sharing information is transmitted and a time domain position where data transmission of the terminal device sharing the COT is located is greater than or equal to the first interval. Since the interval is greater than or equal to the first interval, the terminal device sharing the COT has time to perform processing operations such as decoding the COT sharing information, so that the terminal device sharing the COT can use the COT indicated by the COT sharing information to realize the COT sharing, thereby realizing enhancement of the COT sharing mechanism in the SL-U system.

The second aspect is a method for sharing time occupied by a channel, which is applied to terminal equipment occupied by time COT by a shared channel; the method comprises the following steps:

receiving COT sharing information, wherein an interval between a time domain position where the COT sharing information is sent and a time domain position where data of the terminal equipment which is shared with the COT is transmitted is larger than or equal to a first interval, the COT sharing information is used for indicating relevant information of COT which is shared with the terminal equipment which is shared with the COT, and the first interval is defined by network configuration, pre-configuration or protocol.

In a third aspect, a method for sharing channel occupation time is applied to a terminal device sharing channel occupation time COT; the method comprises the following steps:

and transmitting channel occupation information, wherein the channel occupation information is used for continuously occupying channels in a first time length, the first time length is determined by a first interval, the interval between the time domain position where COT sharing information is transmitted and the time domain position where data of the terminal equipment sharing COT is transmitted is larger than or equal to the first interval, the COT sharing information is used for indicating relevant information of COT shared to the terminal equipment sharing COT, and the first interval is defined by network configuration, pre-configuration or protocol.

It can be seen that, in the SL-U system, in order to ensure continuous transmission in the shared COT, such that the interval between two transmissions is greater than or equal to the transmission requirement, the present application introduces channel occupancy information, and continuously occupies the channel in a first period by the channel occupancy information, where the first period may be determined by the first interval. In this way, the terminal devices sharing the COT can continuously occupy the channel for the first time period to transmit the channel occupancy information, thereby being beneficial to avoiding the channel from being preempted by other devices or reducing the probability of the channel from being preempted by other devices.

In addition, by continuously occupying the channel in the first time period, the interval between the time domain position where a certain transmission of the terminal device sharing the COT in the sharing COT is located and the time domain position where a certain transmission of the terminal device sharing the COT is located is avoided being too large, so that the interval is smaller than a preset value (for example, 16 μs), and the interval is smaller than the preset value, so that the terminal device sharing the COT can access the channel without LBT before the transmission in the sharing COT, thereby being beneficial to improving the probability that the terminal device sharing the COT accesses/obtains the channel in the sharing COT, or accesses/obtains the channel in the sharing COT with higher probability, and further realizing enhancement of the COT sharing mechanism in the SL-U system.

A fourth aspect is a channel occupation time sharing device according to the present application, including:

a sending unit, configured to send COT sharing information, where an interval between a time domain position where the COT sharing information is sent and a time domain position where data of a terminal device that is sharing the COT is transmitted is greater than or equal to a first interval, where the COT sharing information is used to indicate relevant information of the COT shared to the terminal device that is sharing the COT, and the first interval is defined by network configuration, pre-configuration, or protocol.

A fifth aspect is a channel occupation time sharing device according to the present application, including:

the receiving unit is configured to receive COT sharing information, where an interval between a time domain position where the COT sharing information is sent and a time domain position where data of the channel occupying time sharing device is transmitted is greater than or equal to a first interval, where the COT sharing information is used to indicate relevant information of the COT shared to the channel occupying time sharing device, and the first interval is defined by network configuration, pre-configuration or protocol.

A sixth aspect is a channel occupation time sharing device according to the present application, including:

a sending unit, configured to send channel occupation information, where the channel occupation information is used to continuously occupy a channel in a first time period, where the first time period is determined by a first interval, an interval between a time domain position where transmission of COT sharing information is located and a time domain position where data transmission of a terminal device that is shared with the COT is greater than or equal to the first interval, where the COT sharing information is used to indicate relevant information of the COT shared with the terminal device that is shared with the COT, and the first interval is defined by network configuration, pre-configuration, or protocol.

A seventh aspect is a terminal device of the present application, where the terminal device is a terminal device sharing a channel occupation time COT, and the terminal device includes a processor, a memory, and a computer program or instructions stored on the memory, where the processor executes the computer program or instructions to implement the steps in the method designed in the first aspect or the third aspect.

In an eighth aspect, the present application is a terminal device, where the terminal device is a terminal device occupied by a shared channel for a time COT, and the terminal device includes a processor, a memory, and a computer program or instructions stored on the memory, where the processor executes the computer program or instructions to implement the steps in the method designed in the second aspect.

A ninth aspect is a chip of the present application, including a processor and a communication interface, where the processor performs the steps in the method designed in the first aspect, the second aspect or the third aspect.

A tenth aspect is a chip module of the present application, including a transceiver component and a chip, where the chip includes a processor, and the processor executes the steps in the method designed in the first aspect, the second aspect, or the third aspect.

An eleventh aspect is a computer readable storage medium of the present application, in which a computer program or instructions are stored, which when executed implement the steps in the method devised in the first aspect, the second aspect, or the third aspect.

A twelfth aspect is a computer program product according to the present application, comprising a computer program or instructions, wherein the computer program or instructions, when executed, implement the steps of the method devised in the first aspect, the second aspect or the third aspect.

A thirteenth aspect is a communication system of the present application, including the terminal device sharing a COT in the seventh aspect and the terminal device shared a COT in the eighth aspect.

The technical effects of the second, fourth, fifth, seventh to thirteenth aspects may be referred to the technical effects of the first aspect, and are not described herein.

The technical effects of the sixth aspect to the thirteenth aspect may be seen in the technical effects of the third aspect, and are not described here again.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a transmission resource according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of another transmission resource according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of another transmission resource according to an embodiment of the present application;

fig. 5 is a flowchart of a channel occupation time sharing method according to an embodiment of the present application;

FIG. 6 is a flow chart of yet another method of channel occupancy time sharing according to an embodiment of the present application;

fig. 7 is a functional unit block diagram of a channel occupation time sharing apparatus according to an embodiment of the present application;

FIG. 8 is a functional block diagram of a further channel occupancy time sharing device according to an embodiment of the present application;

fig. 9 is a functional unit block diagram of a further channel occupation time sharing device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of still another terminal device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of still another terminal device according to an embodiment of the present application.

Detailed Description

It should be understood that the terms "first," "second," and the like, as used in embodiments of the present application, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, software, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the embodiment of the application, "and/or", the association relation of the association objects is described, which means that three relations can exist. For example, a and/or B may represent three cases: a alone; both A and B are present; b alone. Wherein A, B can be singular or plural.

In the embodiment of the present application, the symbol "/" may indicate that the associated object is an or relationship. In addition, the symbol "/" may also denote a divisor, i.e. performing a division operation. For example, A/B may represent A divided by B.

"at least one" or similar expressions in the embodiments of the present application refer to any combination of these items, including any combination of single item(s) or plural items(s); refers to one or more, and a plurality refers to two or more. For example, at least one (one) of a, b or c may represent the following seven cases: a, b, c, a and b, a and c, b and c, a, b and c. Wherein each of a, b, c may be an element or a set comprising one or more elements.

The 'equal' in the embodiment of the application can be used together with the 'greater than', and is applicable to the technical scheme adopted when the 'greater than'; the 'equal' can be used together with the 'less than', and is suitable for the technical scheme adopted when the 'less than'. When "equal to" is used in conjunction with "greater than," it is not used in conjunction with "less than"; when "equal" is used in conjunction with "less than," it is not used in conjunction with "greater than.

In the embodiments of the present application, the "associated with" may be used in combination with "of", corresponding to "and" indicated to ", mapping, and the like, or may represent the same concept/meaning.

In the embodiment of the present application, "connection" refers to various connection modes such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in any way.

The "network" in the embodiments of the present application may be sometimes used in combination with "system" or the like, or represent the same concept/meaning, and the communication system is a communication network.

The term "comprising" in the embodiments of the present application may sometimes be used interchangeably with "comprising," "carrying," etc., or to mean the same concept/meaning.

The "configuration" in the embodiments of the present application may be sometimes used in combination with "indication" or the like, or represent the same concept/meaning.

The "gap" in the embodiments of the present application may be sometimes used in combination with "gap", "time interval", "time gap", etc., or represent the same concept/meaning.

The following describes related content, concepts, meanings, technical problems, technical solutions, advantageous effects and the like related to the embodiments of the present application.

1. Communication system, terminal device and network device

1. Communication system

The technical solution of the embodiment of the application can be applied to various communication systems, for example: general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced Long Term Evolution, LTE-a) system, new air interface (New Radio, NR) system, evolution system of NR system, LTE (LTE in Unlicensed Spectrum, LTE-U) system on unlicensed band, NR (NR in Unlicensed Spectrum, NR-U) system on unlicensed band, sidelink (SL) system, sidelink (Sidelink in Unlicensed Spectrum, SL-U) system on unlicensed band, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wi-Fi), 6th Generation (6 th-Generation, 6G) communication system, or other communication system, etc.

It should be noted that, the number of connections supported by the conventional communication system is limited and easy to implement. However, with the development of communication technology, the communication system may support not only a conventional communication system, but also, for example, a device-to-device (D2D) communication, a machine-to-machine (machine to machine, M2M) communication, a machine type communication (machine type communication, MTC), an inter-vehicle (vehicle to vehicle, V2V) communication, an internet of vehicles (vehicle to everything, V2X) communication, a narrowband internet of things (narrow band internet of things, NB-IoT) communication, and so on, so the technical solution of the embodiment of the present application may also be applied to the above-described communication system.

In addition, the technical solution of the embodiment of the present application may be applied to beamforming (beamforming), carrier aggregation (carrier aggregation, CA), dual connectivity (dual connectivity, DC), or independent (SA) deployment scenarios, and the like.

In this embodiment of the present application, the frequency spectrum used for communication between the terminal device and the network device, or the frequency spectrum used for communication between the terminal device and the terminal device may be an authorized frequency band or an unlicensed frequency band, which is not limited. In addition, unlicensed bands may be understood as shared spectrum, and licensed bands may be understood as non-shared spectrum.

In some possible implementations, the communication system of embodiments of the present application may be a SL-N system.

Since the embodiments of the present application describe various embodiments in connection with terminal devices and network devices, the terminal devices and network devices involved will be specifically described below.

2. Terminal equipment

The terminal device may be a device having a receiving and/or transmitting function, and may also be referred to as a terminal, a User Equipment (UE), a remote terminal device (remote UE), a relay device (relay UE), an access terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, a mobile device, a user terminal device, an intelligent terminal device, a wireless communication device, a user agent, or a user equipment. The relay device is a terminal device capable of providing a relay service to other terminal devices (including a remote terminal device).

For example, the terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned automatic driving, a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), or the like.

As another example, the terminal device may be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next generation communication system (e.g., NR communication system, 6G communication system) or a terminal device in a future evolved public land mobile network (public land mobile network, PLMN), etc., without limitation.

In some possible implementations, the terminal device may be deployed on land, including indoors or outdoors, hand-held, wearable, or vehicle-mounted; can be deployed on the water surface (such as ships, etc.); may be deployed in the air (e.g., aircraft, balloons, satellites, etc.).

In some possible implementations, the terminal device may include means for wireless communication functions, such as a chip system, a chip module. By way of example, the chip system may include a chip, and may also include other discrete devices.

3. Network equipment

The network device may be a device with a receiving and/or transmitting function, and is used for communication with the terminal device.

In some possible implementations, the network device may be responsible for radio resource management (radio resource management, RRM), quality of service (quality of service, qoS) management, data compression and encryption, data transceiving, etc. on the air side.

In some possible implementations, the network device may be a Base Station (BS) in a communication system or a device deployed in a radio access network (radio access network, RAN) for providing wireless communication functions.

For example, the network device may be an evolved node B (evolutional node B, eNB or eNodeB) in the LTE communication system, a next generation evolved node B (next generation evolved node B, ng-eNB) in the NR communication system, a next generation node B (next generation node B, gNB) in the NR communication system, a Master Node (MN) in the dual connectivity architecture, a second node or Secondary Node (SN) in the dual connectivity architecture, or the like, without particular limitation.

In some possible implementations, the network device may also be a device in a Core Network (CN), such as an access and mobility management function (access and mobility management function, AMF), a user plane function (user plane function, UPF), etc.; but also Access Points (APs) in WLAN, relay stations, communication devices in future evolved PLMN networks, communication devices in NTN networks, etc.

In some possible implementations, the network device may include a device, such as a system-on-chip, a chip module, having means to provide wireless communication functionality for the terminal device. By way of example, the chip system may include a chip, or may include other discrete devices.

In some possible implementations, the network device may be a transmission reception point (transmission and reception point, TRP).

In some possible implementations, the network device may communicate with an internet protocol (Internet Protocol, IP) network. Such as the internet, a private IP network or other data network, etc.

In some possible implementations, the network device may be a single node to implement the functionality of the base station or the network device may include two or more separate nodes to implement the functionality of the base station. For example, network devices include Centralized Units (CUs) and Distributed Units (DUs), such as gNB-CUs and gNB-DUs. Further, in other embodiments of the present application, the network device may further comprise an active antenna unit (active antenna unit, AAU). Wherein a CU implements a portion of the functions of the network device and a DU implements another portion of the functions of the network device. For example, a CU is responsible for handling non-real-time protocols and services, implementing the functions of a radio resource control (radio resource control, RRC) layer, a service data adaptation (service data adaptation protocol, SDAP) layer, and a packet data convergence (packet data convergence protocol, PDCP) layer. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC), medium access control (medium access control, MAC) and Physical (PHY) layers. In addition, the AAU can realize partial physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may eventually become or be converted from the information of the PHY layer, in the network deployment, higher layer signaling (e.g., RRC signaling) may be considered to be transmitted by the DU or transmitted by both the DU and the AAU. It is understood that the network device may include at least one of CU, DU, AAU. In addition, the CU may be divided into network devices in the RAN, or may be divided into network devices in the core network, which is not particularly limited.

In some possible implementations, the network device may be any one of multiple sites that performs coherent joint transmission (coherent joint transmission, cqt) or incoherent joint transmission with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, which is not limited in particular. The multi-site coherent joint transmission may be a multi-site coherent joint transmission, or different data belonging to the same physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) are sent from different sites to the terminal device, or the multiple sites are virtualized into one site for transmission, and names with the same meaning specified in other standards are also applicable to the application, i.e. the application does not limit the names of the parameters. The stations in the multi-station coherent joint transmission may be remote radio heads (Remote Radio Head, RRH), TRP, etc., which are not particularly limited.

In some possible implementations, the network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (high elliptical orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.

In some possible implementations, the network device may serve a cell, and terminal devices in the cell may communicate with the network device over transmission resources (e.g., spectrum resources). The cells may be macro cells (macro cells), small cells (small cells), urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells), and the like.

4. Description of the examples

An exemplary description of a communication system according to an embodiment of the present application is provided below.

Exemplary, a network architecture of a communication system according to an embodiment of the present application may refer to fig. 1. As shown in fig. 1, communication system 10 may include a network device 110, a terminal device 120, and a terminal device 130. Terminal device 120 may communicate with terminal device 130 via a secondary link.

Fig. 1 is merely an illustration of a network architecture of a communication system, and the network architecture of the communication system according to the embodiments of the present application is not limited thereto. For example, a server or other device may also be included in communication system 10. As another example, multiple network devices and/or multiple terminal devices may be included in communication system 10.

2. Channel OccupancyTime, COT sharing (sharing) mechanism in NR-U system

1. Unlicensed frequency bands

The unlicensed band may be used as a complement to the licensed band to help operators expand services. In order to keep deployment consistent in the NR system and maximize unlicensed access based on the NR system as much as possible, the unlicensed band may operate in the 5GHz band or the like, and a large bandwidth (e.g., 80MHz or 100MHz or the like) of the unlicensed band may reduce implementation complexity of network devices and/or terminal devices.

Since unlicensed bands may be shared by multiple Radio access technologies (Radio AccessTechnology, RAT), such as wireless fidelity (WiFi), radar, LTE licensed band assisted access (LTE License Assisted Access, LTE-LAA), etc., unlicensed bands must be used in compliance with certain rules to ensure that all devices can use resources fairly, such as Listen Before Talk (LBT) or clear channel assessment (Clear Channel Assessment, CCA).

2. Initiating device, responding device, device sharing COT, and device shared COT

In an NR-U system, the initiating device (initiating device) may be a network device or a terminal device and the responding device (responding device) may be a terminal device or a network device. For example, when the network device is an initiating device, the terminal device may be a responding device; when the terminal device is an initiating device, the network device may be a responding device.

In addition, the initiating device may also be referred to as a device sharing the COT, and the responding device may also be referred to as a device being shared the COT. For example, when the network device is a device sharing a COT, the terminal device may be a device shared a COT; when the terminal device is a device sharing the COT, the network device may be a device shared the COT.

It should be noted that a device sharing a COT may be understood as a device that shares a COT of a channel (ready to be/being/having been etc.) after the COT is obtained.

A device that is shared with a COT may be understood as a device that accepts/obtains (needs to accept/prepare to accept/is accepting/has accepted, etc.) a COT that is shared with other devices.

3. COT sharing

In an NR-U system, an initiating device may perform LBT on an unlicensed band. If LBT is successful, the initiating device may access/acquire the channel for a period of time, which may be denoted as COT. The initiating device may then share the COT with the responding device such that the responding device may increase the probability of accessing/acquiring channels within the COT, or access/acquire channels with a higher probability within the COT.

For example, taking a network device accessing a channel through an LBT access channel as an example, the network device may share the COT of the channel to a terminal device after the network device accesses the channel successfully, so as to improve the probability that the terminal device accesses the channel in the COT.

In an NR-U system, a network device may share COT with multiple terminal devices.

For example. The network device shares the COT to the plurality of terminal devices through the COT information field in the downlink control information (Downlink Control Information, DCI) format (format) 2_0. The COT information field may include, among other things, a COT duration indication 1 (COT durationindicator 1), COT durationindicator2, …, COT durationindicator N. Each COT durationindicator is used to indicate an index of a shared COT duration (COT duration) to a certain terminal device. In this way, the terminal device may determine the final COT duration in the COT duration table configured by the high-level parameters according to the index.

4. Interval between two transmissions within a shared COT, continuous transmission within a shared COT, and access to use of a shared COT

In an NR-U system, when an initiating device shares COT to a responding device, there is the following:

● If the interval between the time domain position where a certain transmission of the device is initiated in the COT and the time domain position where a certain transmission of the responding device is located (i.e. the interval between two transmissions in the COT) is smaller than a preset value (e.g. 16 μs), the responding device can access the channel before the transmission in the COT without performing LBT, so that the transmission in the COT can be performed on the channel. Since the responding device accesses the channel without performing LBT within the COT, it is advantageous to increase the probability that the responding device accesses/obtains the channel within the COT, or accesses/obtains the channel with a higher probability within the COT.

● If the interval is greater than the preset value, the response device needs to perform LBT before the transmission; if LBT is successful, the responding device can access the channel and make this transmission on the channel; if LBT fails, then this COT shared to the responding device will terminate.

In an NR-U system, a network device may centrally control a transmission procedure of an initiating device and/or a responding device under COT sharing, thereby ensuring continuous transmission within a shared COT through centralized control, enabling an interval (gap) between two transmissions within the shared COT to meet transmission requirements, and enabling the responding device to use the COT shared by the initiating device, and the like.

For example, the network device can consider the processing capability of the terminal device (e.g. decoding the COT information in DCI format 2_0) when sharing the COT, so as to allocate appropriate transmission resources for the terminal device, so that the network device configures the transmission resources to implement centralized control over the transmission process.

1) Spacing between two transmissions within a shared COT

It should be noted that, the interval between two transmissions in the shared COT may be an interval between a time domain position where a certain transmission of the initiating device is located and a time domain position where a certain transmission of the responding device is located in the shared COT, may be an interval between respective time domain positions where a certain two transmissions of the initiating device are located in the shared COT, and may be an interval between respective time domain positions where a certain two transmissions of the responding device are located in the shared COT, which is not particularly limited.

For example, taking the interval between the time domain location where a certain transmission of the initiating device is located and the time domain location where a certain transmission of the responding device is located within the shared COT as shown in fig. 2, there is the following:

the initiating device shares COT to the responding device;

the network device allocates transmission resources to the initiating device on time slot n (n is a positive integer) and time slot n+1 in the COT, and allocates transmission resources to the responding device on time slot n+2 in the COT;

thus, the initiating device may transmit on time slot n and time slot n+1, while the responding device may transmit on time slot n+2. At this time, the interval between two transmissions in the shared COT may be an interval between the transmission of the initiating device on the time slot n (here, the initiating device is not transmitting data on the time slot n+1) and the transmission of the responding device on the time slot n+2, or an interval between the transmission of the initiating device on the time slot n+1 (here, the initiating device is transmitting data on both the time slot n and the time slot n+1) and the transmission of the responding device on the time slot n+2 in the COT.

2) Continuity transmissions within shared COT

It should be noted that, in the shared COT, the initiating device needs to continuously transmit data, so as to realize that the transmitting resource is continuously occupied/used (i.e. the channel is continuously occupied/used for a period of time) to transmit data, thereby being beneficial to avoiding the channel from being preempted by other devices or reducing the probability of the channel from being preempted by other devices.

In this way, by continuously occupying transmission resources (or continuously occupying channels for a period of time), it is possible to avoid that the interval between the time domain position where a certain transmission of the initiating device is located and the time domain position where a certain transmission of the responding device is located in the shared COT is too large, so that the interval is smaller than a preset value (for example, 16 μs), and the interval is smaller than the preset value, so that the responding device can access the channel without performing LBT before this transmission in the shared COT, thereby being beneficial to improving the probability that the responding device accesses/obtains the channel in the COT, or accesses/obtains the channel in the COT with a higher probability.

the initiating device shares COT to the responding device;

thus, the initiating device may transmit on time slot n and time slot n+1, while the responding device may transmit on time slot n+2.

If the initiating device transmits data on both slot n and slot n+1 within the COT, it is indicated that the initiating device continuously occupies/uses transmission resources. At this time, the interval between the two transmissions is the interval between the transmission of the initiating device on slot n+1 and the transmission of the responding device on slot n+2.

If the originating device only transmitted data on time slot n and not data on time slot n+1 within the COT, it is indicated that the originating device has unoccupied/unused transmission resources. At this time, the interval between the two transmissions, the interval between the transmission of the initiating device on slot n and the transmission of the responding device on slot n+2. Thus, the interval between the two transmissions is significantly larger.

3) Responding devices come to use the COT shared by the originating device

It should be noted that, for the responding device to use the COT shared by the initiating device, the network device may consider the processing capability of the responding device (such as the duration of decoding the COT information by the responding device, where the COT information is used to share the COT with the responding device), and allocate appropriate transmission resources to the responding device in a centralized manner, so that an interval between the time when the initiating device sends the COT information and the time when the responding device sends data is too short, which results in that the responding device needs to perform data transmission when it has not performed processing operations such as decoding the COT information, so that decoding of the COT information fails and the shared COT cannot be used.

It can be seen that through centralized control of the network devices, the responding device can be guaranteed to have access to the COT shared by the originating device.

3. Sidelink system

1. Resource allocation method

The resource allocation in the sidlink system may include mode1 (mode 1) and mode2 (mode 2). The mode1 may be that the network device schedules the resources of the sip link to the terminal device for transmission; mode2 may be that the terminal device autonomously determines/selects transmission resources from the resources of the (pre) configured Sidelink of the network device, whereas mode2 may in turn comprise a plurality of sub-modes, such as mode2a (mode 2 a), mode2b (mode 2 b), mode2c (mode 2 c), mode2d (mode 2 d) etc.

2. Resources of Sidelink

The resources of the Sidelink may include a resource pool (resource pool), an LBT bandwidth (LBT bandwidth), a Sidelink bandwidth portion (SL BWP), and the like. Wherein, the LBT bandwidth may be understood as a continuous band resource for LBT, such as 20MHz; SL BWP may be understood as BWP for the sidlink. The resource pool will be mainly described below.

The granularity of each Resource pool in the time domain may be a slot (slot), and the granularity in the frequency domain may be a subchannel (sub-channel), and each subchannel may contain m Resource Blocks (RBs), which may be configured by higher layers. In mode2, when the terminal device needs to select transmission resources from the resource pool, the transmission resources may be selected according to the amount of data to be transmitted.

The physical secondary link control channel (Physical Sidelink Control Channel, PSCCH) and the physical secondary link shared channel (Physical Sidelink Share Channel, PSSCH) may be transmitted simultaneously on the selected transmission resources. Wherein the PSCCH may be used to carry secondary link control information (Sidelink Control Inforation, SCI); the PSSCH may be used to carry data. The SCI may include time-frequency domain location information of a currently selected transmission resource and time-frequency domain location information of a transmission resource reserved later, and may further include some parameters in the decoded PSSCH, etc.

3. Auxiliary link (Sidelink in Unlicensed Spectrum, SL-U) system of unlicensed frequency band

It should be noted that, the SL-U system may be understood that the sidlink system operates in an unlicensed frequency band. Therefore, like the NR-U system, all terminal devices in the SL-U system can guarantee fair use of resources through LBT and other rules when using unlicensed frequency bands.

In a SL-U system, the initiating device is a certain terminal device and the responding device (responding device) may be a further terminal device.

In addition, the initiating device may also be referred to as a terminal device sharing the COT, and the responding device may also be referred to as a terminal device being shared the COT. Thus, both the terminal device sharing the COT and the terminal device sharing the COT essentially belong to the terminal device described in the above "2, terminal device".

It should be noted that a terminal device sharing a COT may be understood as a terminal device that, after acquiring a COT of a channel, shares the COT (ready to be/will be etc.).

A terminal device that is shared with a COT is understood to be a terminal device that accepts/obtains (needs to accept/prepare to accept/is accepting/has accepted, etc.) a COT shared with other terminal devices.

4. Enhancing COT sharing mechanism in SL-U systems

1. Description of the invention

In combination with the above, in the NR-U system, the transmission process of the initiating device and/or the responding device under the shared COT may be centrally controlled by the network device. However, in a different NR-U system, the transmission process of the initiating device and/or the responding device under the COT sharing may not need to be controlled centrally by the network device in the SL-U system, so that the COT sharing mechanism in the NR-U system may no longer be applicable to the SL-U system.

For example, since the network device does not centrally control the transmission process, the initiating device and/or the responding device may not be guaranteed to continuously transmit within the shared COT, such that the interval between two transmissions within the shared COT may not meet the transmission requirements, etc., and the responding device may not use the COT shared by the initiating device, etc.

1) The present application introduces a first interval

Based on this, in the SL-U system, in order to ensure that the responding device (the terminal device sharing the COT) can use the COT shared by the originating device (the terminal device sharing the COT), the present application introduces a first interval such that an interval between a time domain position where the COT shared information is transmitted and a time domain position where data transmission of the responding device is located is greater than or equal to the first interval. Since the interval is greater than or equal to the first interval, the responding device (terminal device that is shared with the COT) has time to perform processing operations such as decoding the COT sharing information, so that the responding device can use the COT indicated by the COT sharing information to realize the COT sharing, thereby realizing enhancement of the COT sharing mechanism in the SL-U system.

For example, in fig. 3 (a), the originating device transmits COT sharing information indicating the related information of the COT shared to the responding device on the transmission resource 311 of the slot n. The transmission resource 311 may be selected by the initiating device (i.e., mode 2) or configured by the network (i.e., mode 1). Since the interval between the time when the originating device transmits the COT shared information on the transmission resource 311 and the time when the responding device transmits the data on the transmission resource 312 of the time slot n+1 is too short, and the interval cannot satisfy the first interval, the responding device needs to transmit the data on the transmission resource 312 if it has not performed the processing operations such as decoding the COT shared information, so that the decoding of the COT shared information fails and the COT shared by the originating device cannot be used. The transmission resource 312 may be selected autonomously by the responding device (i.e., mode 2) or configured by the network (i.e., mode 1).

Unlike fig. 3 (a), in fig. 3 (b), the originating device transmits the COT shared information on the transmission resource 321 of the slot n. The transmission resource 321 may be selected by the initiating device (i.e. mode 2) or configured by the network (i.e. mode 1). Since the interval between the time when the originating device transmits the COT shared information on the transmission resource 321 and the time when the responding device transmits the data on the transmission resource 322 of the slot n+3 is longer, and the interval is greater than or equal to the first interval, there is enough time between the transmission of the data on the transmission resource 322 to perform the processing operations such as decoding the COT shared information, thereby ensuring that the responding device can use the COT shared by the originating device. Transmission resource 322 may be autonomously selected by the responding device (i.e., mode 2) or network configured (i.e., mode 1).

2) The present application introduces channel occupancy information

In order to ensure continuous transmission in a shared COT in a SL-U system, so that the interval between two transmissions meets the transmission requirement, the present application introduces channel occupancy information, and continuously occupies a channel in a first time period through the channel occupancy information, where the first time period may be determined by the first interval. In this way, the initiating device (terminal device sharing the COT) may continuously occupy the channel for a first time period to transmit the channel occupancy information, thereby advantageously avoiding or reducing the probability of other devices preempting the channel.

In addition, by continuously occupying the channel in the first time period, the interval between the time domain position where a certain transmission of the terminal device sharing the COT in the sharing COT is located and the time domain position where a certain transmission of the terminal device sharing the COT is located is avoided being too large, so that the interval is smaller than a preset value (for example, 16 μs), and the interval is smaller than the preset value, so that the response device (the terminal device sharing the COT) can access the channel before this transmission in the sharing COT without performing LBT, thereby being beneficial to improving the probability that the response device (the terminal device sharing the COT) accesses/obtains the channel in the sharing COT, or accesses/obtains the channel in the sharing COT with higher probability, and further realizing enhancement of the COT sharing mechanism in the SL-U system.

For example, in fig. 4, the initiating device has transmission resource 411 for slot n, transmission resource 412 for slot n+1, transmission resource 413 for slot n+2, and transmission resource 414 for slot n+3, while the responding device has transmission resource 421 for slot n+3.

When the initiating device only sends the COT shared information on transmission resource 411, but no data needs to be transmitted, this leaves transmission resource 412, transmission resource 413 and transmission resource 414 unoccupied/unused, so that the interval between the transmission of the initiating device on time slot n and the transmission of the responding device on time slot n+3 will be significantly large, i.e. the interval between the two transmissions will be significantly large.

When the initiating device transmits the COT shared information on the transmission resource 411, in order to ensure the continuity of transmission, the initiating device may transmit channel occupation information after transmitting the COT shared information, and continuously occupy channels (i.e., continuously occupy the transmission resource 412, the transmission resource 413, and the transmission resource 414) in the time slots n+1, n+2, and n+3 (i.e., 3 time slots) through the channel occupation information, so that the interval between two transmissions may be significantly small.

In summary, the present application may implement enhancement of the COT sharing mechanism in the SL-U system from the following schemes:

scheme 1:

the first interval is introduced, so that the interval between the time domain position where the COT sharing information is sent and the time domain position where the data of the terminal equipment sharing the COT is transmitted is larger than or equal to the first interval, and the terminal equipment sharing the COT can use the COT shared by the terminal equipment sharing the COT.

Scheme 2:

according to the method and the device, channel occupation information is introduced, channels are continuously occupied in a first time period through the channel occupation information, the first time period can be determined by a first interval, continuous transmission in a shared COT is guaranteed, and the interval between two transmissions meets transmission requirements.

It should be noted that "scheme 1" and "scheme 2" are not independent two schemes, but may be related to each other by a first interval.

The technical schemes, beneficial effects, concepts and the like according to the embodiments of the present application are described below.

2. Scheme 1

1) COT shared information

In order to enable a terminal device sharing the COT to share the COT to a terminal device shared the COT, the present application introduces COT sharing information. The COT sharing information may be used to indicate information about the COT shared to the terminal device that is sharing the COT.

For example, after the terminal device sharing the COT obtains the COT of the channel through the LBT, the terminal device sharing the COT may transmit the COT sharing information. Correspondingly, the terminal equipment sharing COT receives the COT sharing information and determines the COT according to the COT sharing information, so that COT sharing in the SL-U system is realized.

Of course, the COT shared information may be described by other terms, so long as the same functions/meanings/concepts and the like are within the scope of the protection claimed in the present application, which is not limited.

In some possible implementations, the COT sharing information may include at least COT duration information, which may be used to determine a duration of a COT shared to a terminal device that is being shared with the COT.

It is understood that the information related to the COT may include COT duration information.

It can be seen that, in the embodiment of the present application, the duration of sharing the COT to the terminal device that is sharing the COT may be implemented through the COT duration information included in the COT sharing information.

2) Transmission of COT shared information

Note that in the SL-U system, the COT shared information may be transmitted on the resources of the sidlink.

That is, the terminal device sharing the COT may transmit the COT sharing information on the resources of the sidlink. Correspondingly, the terminal device that is shared with the COT may receive the COT sharing information on the resources of the Sidelink.

In some possible implementations, the resources of the ideal may include one of: resource pool, LTB bandwidth, SL BWP.

Wherein the Sidelink operates in an unlicensed frequency band.

It should be noted that, since the embodiment of the present application considers the SL-U system, the sidlink needs to operate in an unlicensed band.

Further, the terminal device sharing the COT in the embodiment of the present application may determine a transmission resource for mode 1 or mode 2 on the resources of the sidlink according to the resource allocation manner, and then transmit the COT sharing information on the transmission resource.

It can be appreciated that in mode 1, the network device may configure transmission resources to the terminal device sharing the COT on the resources of the sidlink; in mode 2, the terminal device sharing the COT may autonomously select a transmission resource on the resources of the sidlink.

3) Time domain position

In the embodiment of the present application, the time domain position may be characterized according to granularity in the time domain, where the granularity may be a subframe/slot/symbol/mini-slot/time instant, etc.

In this case, the time domain position where the COT shared information is transmitted may be a subframe, a slot, a symbol, a mini slot, a time, or the like where the COT shared information is transmitted.

For example, the time slot in which the COT shared information is transmitted is time slot n; that is, the terminal device sharing the COT transmits the COT sharing information on the slot n.

For another example, the symbol where the COT shared information is transmitted is the L-th symbol or the L-th to l+m-th symbols in the slot n; that is, the terminal device sharing the COT transmits the COT sharing information on the L-th symbol or the L-th to l+m-th symbols of the slot n.

The time domain position where the data of the terminal device sharing the COT is transmitted may be a subframe/slot/symbol/mini-slot/time, etc. where the data of the terminal device sharing the COT is transmitted.

For example, the time slot in which the data of the terminal device sharing the COT is transmitted is time slot n+3; that is, the terminal devices that are shared with the COT transmit data on slot n+3.

4) Time domain location of data transmission of terminal devices sharing COT

It should be noted that, since the terminal device sharing the COT may have multiple transmissions within the sharing COT, the time domain location where the data of the terminal device sharing the COT is transmitted may include the time domain location where the first data transmission of the multiple data transmissions of the terminal device sharing the COT is located.

5) First interval

In the embodiment of the present application, after sending the COT shared information, the terminal device sharing the COT may introduce a first interval, which may characterize the time required for performing the processing operations, such as decoding the COT shared information, since the terminal device sharing the COT needs a certain time when performing the processing operations, such as decoding the COT shared information.

In this way, by the interval between the time domain position where the COT sharing information is transmitted and the time domain position where the data transmission of the terminal device sharing the COT is located being greater than or equal to the first interval, the terminal device sharing the COT is guaranteed to be able to use the COT shared by the terminal device sharing the COT.

It should be noted that the interval is greater than or equal to the first interval, and it is understood that the interval satisfies the first interval, which is not particularly limited.

For example, in fig. 4, the terminal device sharing the COT transmits the COT sharing information on the transmission resource 411, and the terminal device being shared the COT needs to transmit data on the transmission resource 421. When the value of the first interval is 2 time slots, the time domain position where the COT sharing information is sent is time slot n, and the time domain position where the data of the terminal equipment sharing COT is transmitted is time slot n+3, so that the interval is equal to 2 time slots, and the interval is greater than or equal to the first interval.

In some possible implementations, the processing operations may include at least one of a time required to decode the COT shared information, a time when the terminal device that is shared with the COT prepares to transmit data, a time when the terminal device that is shared with the COT selects a transmission resource after receiving the COT shared information, and the like.

It should be noted that, the time when the terminal device that is sharing the COT prepares to transmit data may be understood that a certain time is required before the terminal device that is sharing the COT needs to transmit data to prepare to transmit the data, for example, performing operations such as encoding, scrambling, etc. on the data for transmission.

The time for selecting the transmission resource by the terminal device sharing the COT after receiving the COT sharing information may be understood that, in mode 2, after the terminal device sharing the COT receives the COT sharing information, in order to implement data transmission, the terminal device also needs to autonomously select the transmission resource, and the selection of the transmission resource also needs to occupy a certain time.

In some possible implementations, the first interval may be defined by a network configuration, pre-configuration, or protocol.

It can be seen that the embodiments of the present application may flexibly configure/define the first interval through network configuration, pre-configuration or protocol definition, which is mainly determined by a specific scenario.

6) Time required for decoding COT shared information

In some possible implementations, the time required to decode the COT shared information may include one of: time to decode PSCCH, time to decode SCI, time to decode PSCCH and PSCCH, control elements (Medium Access Control Control Elment, MAC CE) to decode medium access control, etc.

It should be noted that, if the COT shared information is transmitted by the PSCCH, the time required for decoding the COT shared information may include the time for decoding the PSCCH;

if the COT shared information is carried by the SCI, the time required to decode the COT shared information may include the time to decode the SCI;

if the COT shared information is transmitted by the PSSCH, the time required to decode the COT shared information may include the time to decode the PSCCH and the PSSCH;

if the COT shared information is carried by the MAC CE, the time required to decode the COT shared information may include the time to decode the MAC CE.

In addition, since the PSCCH may transmit CSI, the time to decode the PSCCH may include the time to decode the CSI. Since the PSSCH may transmit a MAC CE, the time to decode the PSCCH and the PSSCH may include the time to decode the MAC CE.

7) Start and end positions of the first interval

It should be noted that, since the interval between the time domain position where the COT shared information is transmitted and the time domain position where the data transmission of the terminal device that is shared with the COT is located may be greater than or equal to the first interval, the start position and the end position of the first interval may exist as follows:

the starting position of the first interval may be a time domain position where the transmission of the COT sharing information is located, and the ending position of the first interval may be a time domain position where the data transmission of the terminal device sharing the COT is located;

the starting position of the first interval may be a time domain position where the transmission of the COT sharing information is located, and the ending position of the first interval is before the time domain position where the data transmission of the terminal device sharing the COT is located;

the end position of the first interval may be the time domain position where the data transmission of the terminal device that is sharing the COT is located, while the start position of the first interval is after the time domain position where the transmission of the COT sharing information is located, and so on.

8) Units of first interval

In combination with the content in the above "3) time domain position", the unit of the first interval may be different due to the granularity in the time domain.

For example, if the granularity is a slot, the unit of the first interval may be a slot, so that it indicates how many slots are required to be greater than or equal to the interval between the slot in which the COT sharing information is transmitted and the slot in which the data transmission of the terminal device that is being shared is performed.

For another example, if the granularity is a symbol, the unit of the first interval may be a symbol, so that the interval between the symbol where the COT shared information is sent and the symbol where the data transmission of the terminal device that is shared with the COT needs to be greater than or equal to how many symbols.

For another example, if the granularity is time, the unit of the first interval may be ms/s, etc., so that the interval between the time at which the COT shared information is transmitted and the time at which the data of the terminal device to which the COT is shared needs to be greater than or equal to ms/s, etc.

9) Correspondence between first interval and resources of the Sidelink

It should be noted that, the first interval in the embodiments of the present application may have a corresponding (association/mapping) relationship with the resources of the sidlink. Thus, when the resources of the Sidelink are configured, the first interval corresponding to the resources of the Sidelink can be determined according to the corresponding relation, and the configuration/indication of the first interval is realized.

For example, taking the example that the resources of the sidlink include resource pools, the network device configures a plurality of resource pools, such as a first resource pool, a second resource pool, and a third resource pool. The first resource pool corresponds to the first interval, the second resource pool corresponds to the second first interval, and the third resource pool corresponds to the third first interval.

In some possible implementations, the resources of different sidlink may correspond to different or the same first interval.

In some possible implementations, the correspondence between the first interval and the resources of the Sidelink may be a network configuration, a pre-configuration, or a protocol definition.

For example, using network configuration as an example, the network device may send higher layer parameters (higher layer information) that are used to configure the resources of the sidlink. Wherein the network configuration/pre-configuration/protocol defines that the higher layer parameters (higher layer information) contain information indicating the first interval. In this way, the correspondence between the first interval and the resources of the sip link is established by the higher-layer parameters (higher-layer information) containing such information.

10 Value of the first interval

It should be noted that, although the first interval may represent the time required to perform some processing operations, since these processing operations may be different in different scenarios, the first interval may also have different values.

For example, the value of the first interval may be one of:

the first interval may be of the value ofThe first interval may be +.>The first interval may be +.>

It should be noted that the number of the substrates,and->Is a protocol defined preset time required to perform certain processing operations. Wherein (1)>And->Configuration mu according to sub-carrier spacing (SCS) configuration of SL BWP _SL And (5) determining. As shown in Table 1, according to μ _sL Determine->As shown in Table 2, according to μ _SL Determine->

TABLE 1

In Table 1, if μ _SL 0, i.e. SCS 15kHz, then1 time slot; if mu is _SL 1, i.e. SCS is 30kHz, +.>1 time slot; if mu is _SL 2, i.e. SCS is 60kHz, +.>2 time slots; if mu is _SL 3, i.e. SCS 120kHz, +.>For 4 time slots.

TABLE 2

In Table 2, if μ _SL 0, i.e. SCS 15kHz, then3 time slots; if mu is _SL 1, i.e. SCS is 30kHz, +.>5 time slots; if mu is _SL 2, i.e. SCS is 60kHz, +.>9 slots; if mu is _SL 3, i.e. SCS 120kHz, +.>For 17 slots.

It is understood that->And->And (3) summing.

It can be seen that embodiments of the present application may operate according to processing in different scenariosTo flexibly set the values of different first intervals, e.g. to set the values of the first intervals to Or greater than->And the like, so that a first interval required to be greater than or equal to an interval between a time domain position where the COT sharing information is transmitted and a time domain position where data of the terminal device to which the COT is shared is transmitted can be flexibly set according to various scenes.

For another example, in combination with the content in the first interval of "4"), if the COT shared information is transmitted by the PSCCH, the time required for decoding the COT shared information may include the time for decoding the PSCCH, so that the value of the first interval may be determined at least by the time for decoding the PSCCH;

if the COT shared information is carried by the SCI, the time required to decode the COT shared information may include the time to decode the SCI, such that the value of the first interval may be determined at least by the time to decode the SCI;

if the COT shared information is transmitted by the PSSCH, the time required to decode the COT shared information may comprise the time to decode the PSCCH and the PSSCH, such that the value of the first interval may be determined by at least the time to decode the PSCCH and the PSSCH;

if the COT sharing information is carried by the MAC CE, the time required for decoding the COT sharing information may include the time for decoding the MAC CE, so that the value of the first interval may be determined at least by the time for decoding the MAC CE;

Furthermore, the value of the first interval may be determined by at least one of: the time when the terminal device that is shared with the COT prepares to transmit data, and the time when the terminal device that is shared with the COT selects transmission resources after receiving the COT sharing information.

That is, the value of the first interval may be determined at least by the time of decoding the PSCCH and the time when the terminal device that is being shared with the COT is ready to transmit data, may be determined at least by the time of decoding the PSCCH and the time when the terminal device that is being shared with the COT selects the transmission resource, may be determined at least by the time of decoding the PSCCH, the time when the terminal device that is being shared with the COT is ready to transmit data, and the time when the terminal device that is being shared with the COT selects the transmission resource, and the rest are sequentially known.

3. Scheme 2

1) Channel occupancy information

In order to ensure continuous transmission in the shared COT such that the interval between two transmissions meets the transmission requirements, the embodiments of the present application introduce channel occupancy information that may be used to continuously occupy the channel for the first time period.

In some possible implementations, the channel occupancy information may include one of: new transmitted data, retransmitted data, predefined data, partially or fully replicated data in the previous M PSSCHs.

It should be noted that, the newly transmitted data may be understood that the terminal device sharing the COT needs to transmit the newly generated data, and the data may include a Transport Block (TB). In this way, the channel is normally occupied by transmitting the generated data, and the continuous transmission in the COT is ensured.

The retransmitted data may be understood that the terminal devices sharing the COT need to retransmit the transmitted data (i.e., the history data). For example, some or all of the data of the last/last few transmissions may be retransmitted. Thus, the continuous transmission in the COT is ensured by retransmitting the historical data to occupy the channel.

Predefined data, it may be understood that the embodiments of the present application may predefine a portion of data in a network configuration, pre-configuration, or protocol definition manner, where the purpose of the portion of predefined data is to occupy a channel only and not other uses, so as to ensure continuous transmission within the COT.

It can be understood that, in the embodiment of the present application, part or all of the data in the previous M PSSCHs may be copied, and then these copied data are transmitted, so that the channel is occupied by transmitting the copied data, and continuous transmission in the COT is ensured. Among other things, this approach can be seen as one of repeated transmission or retransmission of data.

2) First time length

It should be noted that the first duration may be determined by the first interval. That is, embodiments of the present application may determine the first duration from the first interval.

In some possible implementations, the first time period is determined by the first interval, and may include a value of the first time period that is greater than or equal to the first interval.

For example, in fig. 4, the terminal device sharing the COT transmits only the COT sharing information on the transmission resource 411, but no new data needs to be transmitted, and the terminal device sharing the COT needs to transmit data on the transmission resource 421. When the value of the first interval is 2 time slots, the present application may set the first duration to be 3 time slots. Thus, the first time period is greater than the first interval. Then, after transmitting the COT shared information, the terminal device sharing the COT transmits channel occupation information to occupy transmission resources on the slots n+1, n+2, and n+3.

3) Transmission of channel occupancy information

It should be noted that, in the SL-U system, the channel occupancy information may be transmitted on the resources of the sidlink.

That is, terminal devices sharing the COT may transmit channel occupancy information on the resources of the sidlink.

Wherein the Sidelink operates in an unlicensed frequency band.

In some possible implementations, the terminal device sharing the COT in the embodiment of the present application may determine a transmission resource for mode 1 or mode 2 on the resources of the sidlink according to the resource allocation manner, and then send the channel occupation information on the transmission resource.

That is, the channel occupancy information may be transmitted on transmission resources determined by either mode 1 or mode 2 among the resources of the sidlink.

It can be appreciated that in mode 1, the network device may configure transmission resources to the terminal device sharing the COT in the resources of the sidlink; in mode 2, the terminal device sharing the COT may autonomously select a transmission resource from the resources of the sidlink.

It can be seen that the embodiment of the present application may send the channel occupancy information through the transmission resource determined in mode 1 or mode 2.

In some possible implementations, the terminal device sharing the COT in the embodiments of the present application may send the channel occupation information on a preset time-frequency resource in the resources of the Sidelink.

It should be noted that, the preset time-frequency resource may be understood that a time domain resource dedicated for transmitting channel occupation information is introduced into the resources of the Sidelink. The preset time-frequency resource can be determined through network configuration, pre-configuration or protocol definition.

In some possible implementations, the preset time-frequency resource may include one of: at least one Resource Block (RB), at least one subchannel, at least one interlace (interlace). The RB may include a Physical Resource Block (PRB) or a Virtual Resource Block (VRB);

it is to be appreciated that embodiments of the present application may specifically transmit channel occupancy information with at least one RB/subchannel/interlace in the resources of the sidlink, where the RBs/subchannels/interlaces may be determined by network configuration, pre-configuration, or protocol definition, in particular.

4. An illustration of a COT sharing method

In combination with the foregoing, an example description will be given of a channel occupation time sharing method in the embodiments of the present application. It should be noted that, the terminal device sharing the COT and the terminal device sharing the COT are both one type of terminal device, and the terminal device may also be a chip, a chip module, a communication module, or the like. That is, the method may be applied to a terminal device, which is not particularly limited.

As shown in fig. 5, a flow chart of a channel occupation time sharing method according to an embodiment of the present application may specifically include the following steps:

s510, the terminal equipment sharing COT sends COT sharing information, and the interval between the time domain position where the COT sharing information is sent and the time domain position where the data transmission of the terminal equipment sharing COT is located is larger than or equal to the first interval.

The COT sharing information may be used to indicate information about the COT shared to the terminal device sharing the COT.

Wherein the first interval may be defined by a network configuration, a pre-configuration or a protocol.

Correspondingly, the terminal equipment sharing the COT receives the COT sharing information.

It should be noted that, the content of the foregoing may be described in detail, and the description is omitted herein.

In some possible implementations, the gap is greater than or equal to the first interval, which may include the gap satisfying a minimum gap.

It should be noted that, in combination with the content in the "5) first interval", the embodiments of the present application may ensure that the terminal device sharing the COT can use the COT shared by the terminal device sharing the COT by the interval being greater than or equal to the minimum interval.

In some possible implementations, the time domain location where the data transmission of the terminal device that is sharing the COT is located may include the time domain location where the first data transmission of the multiple data transmissions of the terminal device that is sharing the COT is located.

It should be noted that, in connection with the content of "4) the time domain location where the data of the terminal device that is sharing the COT is transmitted", since the terminal device that is sharing the COT may have multiple transmissions within the sharing the COT, the interval between the time domain location where the COT sharing information is sent and the time domain location where the first data of the terminal device that is sharing the COT is greater than or equal to the first interval in the embodiment of the present application.

In some possible implementations, the COT shared information may be sent or received on the resources of the Sidelink.

It should be noted that, in combination with the content in the foregoing "2) transmission of the COT shared information", the terminal device sharing the COT in the embodiment of the present application may send the COT shared information on the resources of the sidlink. Correspondingly, the terminal device that is shared with the COT may receive the COT sharing information on the resources of the Sidelink.

In some possible implementations, the first interval may have a correspondence with resources of the sidlink.

It should be noted that, in combination with the content of the above "9) correspondence between the first interval and the resources of the sip link", the first interval in the embodiment of the present application may have a correspondence (association/mapping) relationship with the resources of the sip link. Thus, when the resources of the Sidelink are configured, the first interval corresponding to the resources of the Sidelink can be determined according to the corresponding relation, and the configuration/indication of the first interval is realized.

In some possible implementations, the correspondence may be defined by a network configuration, pre-configuration, or protocol.

It should be noted that, in combination with the content of the above "9) the correspondence between the first interval and the resources of the sip link", the embodiment of the present application may implement configuration/indication of the correspondence by means of network configuration, pre-configuration or protocol definition.

In some possible implementations, the COT sharing information may include at least COT duration information that may be used to determine a duration of the COT shared to the terminal device that is being shared with the COT.

It should be noted that, in combination with the content in the "1) COT sharing information", the embodiment of the present application may implement sharing the duration of the COT to the terminal device that is shared with the COT through the COT duration information included in the COT sharing information.

In some possible implementations, the value of the first interval may be one of:

the first interval takes the value ofThe value of the first interval is +.>The first interval takes the value of

It should be noted that, in combination with the content of the foregoing "10) the value of the first interval", the embodiments of the present application may flexibly set different values of the first interval according to processing operations in different scenes, for example, set the value of the first interval to beOr greater than->And the like, so that a first interval required to be greater than or equal to an interval between a time domain position where the COT sharing information is transmitted and a time domain position where data of the terminal device to which the COT is shared is transmitted can be flexibly set according to various scenes.

In some possible implementations, if the COT shared information is transmitted by the PSCCH, the value of the first interval may be determined at least by the time at which the PSCCH was decoded.

In connection with the above "10) the value of the first interval", in the scenario where the COT shared information is transmitted by the PSCCH, the value of the first interval may be determined at least by the time of decoding the PSCCH.

In some possible implementations, if the COT shared information is transmitted by the PSSCH, the value of the first interval may be determined by at least the time of decoding the PSCCH and the PSCCH.

In connection with the above "10) the value of the first interval", in the scenario where the COT shared information is transmitted by the PSSCH, the value of the first interval may be determined at least by the time of decoding the PSCCH and the PSCCH.

In some possible implementations, the value of the first interval may also be determined by at least one of: the time when the terminal device that is shared with the COT prepares to transmit data, and the time when the terminal device that is shared with the COT selects transmission resources after receiving the COT sharing information.

In combination with the content of "10) the value of the first interval", in some scenarios, the time when the terminal device to be shared with the COT prepares to transmit data may determine the value of the first interval, and the time when the terminal device to be shared with the COT selects the transmission resource after receiving the COT sharing information may determine the value of the first interval.

In some possible implementations, after transmitting the COT sharing information in S510, the method may further include:

the terminal devices sharing the COT transmit channel occupancy information, which may be used to continuously occupy the channel for a first time period, which may be determined by the first interval.

It should be noted that, in combination with the content in the foregoing "scheme 2", in order to ensure continuous transmission in the shared COT, so that the interval between two transmissions satisfies the transmission requirement, the embodiment of the present application introduces channel occupation information, where the channel occupation information may be used to continuously occupy a channel in the first time period.

In some possible implementations, the first duration, determined by the first interval, may include:

the first time length is greater than or equal to the value of the first interval.

It should be noted that, in combination with the content in the "2) the first time length", the embodiment of the present application may implement determining the first time length according to the first interval by using the value of the first time length greater than or equal to the first interval, and ensure continuous transmission in the shared COT by using the value of the first time length greater than or equal to the first interval.

In some possible implementations, the channel occupancy information may be sent on the resources of the sidlink.

It should be noted that, in combination with the content in the "3) transmission of channel occupancy information", the terminal device sharing the COT in the embodiment of the present application may send the channel occupancy information on the resources of the sidlink.

In some possible implementations, the information occupying information may be sent on a preset time-frequency resource in the resources of the Sidelink.

It should be noted that, in combination with the content of the above "3) transmission of channel occupancy information", in the embodiments of the present application, a time domain resource (i.e., a preset time-frequency resource) dedicated for transmitting channel occupancy information may be introduced into the resources of the Sidelink. The preset time-frequency resource can be determined by means of network configuration, pre-configuration or protocol definition.

In some possible implementations, the resources of the ideal may include one of: resource pool, LTB bandwidth, SL BWP. It can be appreciated that the embodiments of the present application may transmit information occupancy information through a resource pool/LTB bandwidth/SL BWP.

In some possible implementations, the ideal may operate in an unlicensed band.

It should be noted that, in connection with the content of "3) transmission of channel occupancy information", since the embodiment of the present application considers the SL-U system, the sidlink needs to operate in an unlicensed band.

In some possible implementations, the preset time-frequency resources may include one of: at least one RB, at least one subchannel, at least one interlace.

It should be noted that, in combination with the content in the foregoing "3) transmission of channel occupancy information", embodiments of the present application may specifically transmit channel occupancy information by using at least one RB/subchannel/interlace in the resources of the sidlink, where the RB/subchannel/interlace may be specifically determined by means of network configuration, pre-configuration, or protocol definition.

In some possible implementations, the channel occupancy information may include one of: newly transmitted data, retransmitted data, predefined data, partially or fully copied data in the previous M times of PSSCH, M being a positive integer.

It should be noted that, in combination with the content in the "1) channel occupancy information", the embodiments of the present application may flexibly and continuously occupy channels in various manners (such as new transmission data, retransmission data, transmission of predefined data, or transmission of data that is partially or completely copied in the PSSCH M times before transmission).

5. Yet another example illustration of a COT sharing method

In connection with the above, another method for sharing time occupied by a channel according to an embodiment of the present application is described as an example. It should be noted that, the execution subject of the method may be a terminal device sharing the COT. The terminal device sharing the COT may be a chip, a chip module, a communication module, or the like. That is, the method may be applied to terminal devices sharing the COT, which is not particularly limited.

As shown in fig. 6, a flow chart of another channel occupation time sharing method according to an embodiment of the present application may specifically include the following steps:

and S610, transmitting channel occupation information, wherein the channel occupation information is used for continuously occupying channels in a first time length, the first time length is determined by a first interval, and the interval between the time domain position where COT sharing information is transmitted and the time domain position where data of terminal equipment sharing COT is transmitted is larger than or equal to the first interval.

The COT sharing information may be used to indicate information about the COT shared to the terminal device that is sharing the COT.

Wherein the first interval is defined by a network configuration, pre-configuration or protocol.

It should be noted that, the details of the foregoing may be described in "terminal device sharing the COT", "channel occupation information", "time domain position", "first interval", "COT sharing information", etc., and will not be described herein.

It can be seen that, in the SL-U system, in order to ensure continuous transmission in the shared COT, so that the interval between two transmissions meets the transmission requirement, the present application introduces channel occupancy information, and continuously occupies the channel in a first period through the channel occupancy information, where the first period may be determined by the first interval. In this way, the terminal devices sharing the COT can continuously occupy the channel for the first time period to transmit the channel occupancy information, thereby being beneficial to avoiding the channel from being preempted by other devices or reducing the probability of the channel from being preempted by other devices.

It should be noted that, the following detailed descriptions of the various implementations may be detailed in the foregoing content or the content of "4, an example description of a COT sharing method", which is not repeated herein.

In some possible implementations, the channel occupancy information may include one of: new transmitted data, retransmitted data, predefined data, partially or fully replicated data in the previous M times of physical secondary link shared channel PSSCH.

In some possible implementations, before transmitting the channel occupancy information in S610, the method may further include:

and sending COT sharing information.

In some possible implementations, the COT sharing information may be sent on the resources of the sidlink.

In some possible implementations, the ideal may operate in an unlicensed band.

In some possible implementations, the COT sharing information may include at least COT duration information, which may be used to determine a duration of the COT shared to the terminal device to which the COT is shared.

taking of the first intervalThe value isThe value of the first interval is +.>The first interval takes the value of

5. An illustration of a channel occupancy time sharing device

The foregoing description of the embodiments of the present application has been presented primarily from a method-side perspective. It will be appreciated that the terminal device or network device, in order to implement the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as outside the scope of this application.

The embodiment of the application can divide the functional units of the terminal equipment or the network equipment according to the method example. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units described above may be implemented either in hardware or in software program modules. It should be noted that, in the embodiment of the present application, the division of the units is schematic, but only one logic function is divided, and another division manner may be implemented in actual implementation.

In the case of using integrated units, fig. 7 is a functional unit block diagram of a channel occupation time sharing apparatus according to an embodiment of the present application. The channel occupation time sharing apparatus 700 includes: a transmitting unit 701.

In some possible implementations, the transmitting unit 701 may be a module unit for processing signals, data, information, and the like, which is not particularly limited.

In some possible implementations, the channel occupancy time sharing apparatus 700 may further include a storage unit for storing computer program code or instructions executed by the channel occupancy time sharing apparatus 700. The memory unit may be a memory.

In some possible implementations, the channel occupancy time sharing device 700 may be a chip or a chip module.

In some possible implementations, the sending unit 701 may be integrated in other units.

For example, the transmitting unit 701 may be integrated in a communication unit.

For another example, the transmitting unit 701 may be integrated in a processing unit.

The communication unit may be a communication interface, a transceiver circuit, or the like.

The processing unit may be a processor or controller, and may be, for example, a baseband processor, a baseband chip, a central processing unit (central processing unit, CPU), a general purpose processor, a digital signal processor (digital signal processor, DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processing unit may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of DSPs and microprocessors, etc.

In some possible implementations, the sending unit 701 is configured to perform any step performed by the terminal device/chip module, etc. in the above method embodiments, such as sending or receiving data, etc. The following is a detailed description.

In particular implementation, the sending unit 701 is configured to perform any step in the method embodiments described above, and when performing an action such as sending, other units may be selectively called to complete the corresponding operation. The following is a detailed description.

The sending unit 701 may be configured to send COT sharing information, where an interval between a time domain position where the COT sharing information is sent and a time domain position where data of a terminal device that is to be shared is greater than or equal to a first interval, where the first interval is defined by network configuration, pre-configuration, or protocol, and the COT sharing information is used to indicate relevant information of a COT shared to the terminal device that is to be shared.

It should be noted that, the specific implementation of each operation in the embodiment shown in fig. 7 may be described in detail in the above-shown method embodiment, and will not be described in detail herein.

In addition, the following detailed descriptions of the various implementations may be detailed in the foregoing or the description of "4, an example of a COT sharing method", which are not repeated herein.

the first interval takes the value ofThe value of the first interval is +.>The value of the first interval is +.>

In some possible implementations, the sending unit 701 is further configured to:

channel occupancy information is transmitted, the channel occupancy information being operable to continuously occupy the channel for a first time period, the first time period being determinable by the first interval.

In some possible implementations, the ideal may operate in an unlicensed band.

6. Yet another exemplary illustration of a channel occupancy time sharing device

In the case of using integrated units, fig. 8 is a functional unit block diagram of still another channel occupation time sharing device according to the embodiment of the present application. The channel occupation time sharing apparatus 800 includes: a receiving unit 801.

In some possible implementations, the receiving unit 801 may be a module unit for processing signals, data, information, and the like, which is not particularly limited.

In some possible implementations, the channel occupancy time sharing apparatus 800 may further include a storage unit for storing computer program code or instructions executed by the channel occupancy time sharing apparatus 800. The memory unit may be a memory.

In some possible implementations, the channel occupancy time sharing device 800 may be a chip or a chip module.

In some possible implementations, the receiving unit 801 may be integrated in other units.

For example, the receiving unit 801 may be integrated in a communication unit.

As another example, the receiving unit 801 may be integrated in a processing unit.

It should be noted that the processing unit may be a processor or a controller, and may be, for example, a baseband processor, a baseband chip, a central processing unit (central processing unit, CPU), a general purpose processor, a digital signal processor (digital signal processor, DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA), or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processing unit may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of DSPs and microprocessors, etc.

In some possible implementations, the receiving unit 801 is configured to perform any step performed by the terminal device/chip module, etc. in the above-described method embodiments, such as sending or receiving data, etc. The following is a detailed description.

In particular implementation, the receiving unit 801 is configured to perform any step in the method embodiments described above, and when performing an action such as sending, other units may be selectively invoked to complete the corresponding operation. The following is a detailed description.

A receiving unit 801, configured to receive COT sharing information, where an interval between a time domain position where the COT sharing information is sent and a time domain position where data of the channel-occupying time sharing device 800 is transmitted is greater than or equal to a first interval, where the first interval is defined by network configuration, pre-configuration or protocol, and the COT sharing information is used to indicate relevant information of the COT shared to the channel-occupying time sharing device 800.

It should be noted that, the specific implementation of each operation in the embodiment shown in fig. 8 may be described in detail in the above-shown method embodiment, and will not be described in detail herein.

In some possible implementations, the time domain location where the data transmission of the channel-occupied time sharing apparatus 800 is located may include the time domain location where the first data transmission of the multiple data transmissions of the channel-occupied time sharing apparatus 800 is located.

In some possible implementations, the COT sharing information may include at least COT duration information that may be used to determine the duration of the COT shared to the channel occupancy time sharing apparatus 800.

In some possible implementations, the value of the first interval may also be determined by at least one of: the time when the channel occupation time sharing apparatus 800 prepares to transmit data, and the time when the channel occupation time sharing apparatus 800 selects transmission resources after receiving the COT sharing information.

In some possible implementations, the receiving unit 801 is further configured to:

channel occupancy information is received, the channel occupancy information being operable to continuously occupy the channel for a first time period, the first time period being determinable by the first interval.

In some possible implementations, the ideal may operate in an unlicensed band.

7. Yet another exemplary illustration of a channel occupancy time sharing device

In the case of using integrated units, fig. 9 is a functional unit block diagram of a channel occupation time sharing apparatus according to an embodiment of the present application. The channel occupation time sharing apparatus 900 includes: a transmitting unit 901.

In some possible implementations, the transmitting unit 901 may be a module unit for processing signals, data, information, and the like, which is not particularly limited.

In some possible implementations, the channel occupancy time sharing apparatus 900 may further include a storage unit for storing computer program code or instructions executed by the channel occupancy time sharing apparatus 900. The memory unit may be a memory.

In some possible implementations, the channel occupancy time sharing device 900 may be a chip or a chip module.

In some possible implementations, the sending unit 901 may be integrated in other units.

For example, the transmitting unit 901 may be integrated in a communication unit.

For another example, the transmitting unit 901 may be integrated in a processing unit.

In some possible implementations, the sending unit 901 is configured to perform any step performed by the terminal device/chip module, etc. in the above method embodiments, such as sending or receiving data, etc. The following is a detailed description.

In particular implementation, the sending unit 901 is configured to perform any step in the method embodiments described above, and when performing an action such as sending, other units may be selectively called to complete the corresponding operation. The following is a detailed description.

A transmitting unit 901, configured to transmit channel occupation information, where the channel occupation information is used to continuously occupy a channel in a first time period, where the first time period is determined by a first interval, and an interval between a time domain position where the COTs sharing information is transmitted and a time domain position where data of a terminal device sharing the COTs is transmitted is greater than or equal to the first interval, where the COTs sharing information is used to indicate relevant information of the COTs shared to the terminal device sharing the COTs, and the first interval is defined by a network configuration, a pre-configuration, or a protocol.

It should be noted that, the specific implementation of each operation in the embodiment shown in fig. 9 may be described in detail in the above-shown method embodiment, and will not be described in detail herein.

and sending COT sharing information.

In some possible implementations, the ideal may operate in an unlicensed band.

8. Example illustration of terminal equipment

Referring to fig. 10, fig. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present application. Terminal device 1000 can be a terminal device sharing a COT and can include a processor 1010, a memory 1020, and a communication bus for connecting processor 1010 and memory 1020.

In some possible implementations, memory 1020 includes, but is not limited to, a random access memory (random access memory, RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a portable read-only memory (compact disc read-only memory, CD-ROM), memory 1020 for storing program code and transmitted data for execution by terminal device 1000.

In some possible implementations, terminal device 1000 can also include a communications interface for receiving and transmitting data.

In some possible implementations, the processor 1010 may be one or more Central Processing Units (CPUs), and in the case where the processor 1010 is one Central Processing Unit (CPU), the Central Processing Unit (CPU) may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU).

In some possible implementations, the processor 1010 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.

In particular implementation, processor 1010 in terminal device 1000 is configured to execute computer program or instructions 1021 stored in memory 1020 to perform the following operations:

and transmitting COT sharing information, wherein the interval between the time domain position where the COT sharing information is transmitted and the time domain position where the data transmission of the terminal equipment of the shared COT is located is larger than or equal to a first interval, the COT sharing information is used for indicating relevant information of the COT shared to the terminal equipment of the shared COT, and the first interval is defined by network configuration, pre-configuration or protocol.

It should be noted that, the specific implementation of each operation may be described in the foregoing method embodiment, and the terminal device 1000 may be used to execute the foregoing method embodiment of the present application, which is not described herein again.

9. Yet another example illustration of a terminal device

Referring to fig. 11, fig. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device 1100 may be a terminal device with a shared COT, and may include a processor 1110, a memory 1120, and a communication bus for connecting the processor 1110 and the memory 1120.

In some possible implementations, memory 1120 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, memory 1120 being used to store related instructions and data.

In some possible implementations, the terminal device 1100 also includes a communication interface for receiving and transmitting data.

In some possible implementations, the processor 1110 may be one or more Central Processing Units (CPUs), and in the case where the processor 1110 is one Central Processing Unit (CPU), the Central Processing Unit (CPU) may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU).

In some possible implementations, the processor 1110 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.

In some possible implementations, the processor 1110 in the terminal device 1100 is configured to execute the computer program or instructions 1121 stored in the memory 1120 to perform the following operations:

the time domain location at which the COT sharing information is transmitted and the time domain location at which the data transmission of the channel-occupying time sharing device 800 is located are separated by a first interval or more, and the COT sharing information is used to indicate the information about the COT shared to the channel-occupying time sharing device 800, and the first interval is defined by a network configuration, a pre-configuration, or a protocol.

It should be noted that, the specific implementation of each operation may be described in the above-illustrated method embodiment, and the terminal device 1100 may be used to execute the method embodiment of the present application, which is not described herein.

10. Yet another example illustration of a terminal device

Referring to fig. 12, fig. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device 1200 may be a terminal device sharing a COT, and may include a processor 1210, a memory 1220, and a communication bus for connecting the processor 1210 and the memory 1220.

In some possible implementations, memory 1220 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, memory 1220 being used to store related instructions and data.

In some possible implementations, the terminal device 1200 also includes a communication interface for receiving and transmitting data.

In some possible implementations, processor 1210 may be one or more Central Processing Units (CPUs), which in the case where processor 1110 is one Central Processing Unit (CPU) may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU).

In some possible implementations, the processor 1210 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.

In some possible implementations, the processor 1210 in the terminal device 1200 is configured to execute the computer program or instructions 1221 stored in the memory 1220 to perform the following operations:

and transmitting channel occupancy information, wherein the channel occupancy information is used for continuously occupying channels in a first time period, the first time period is determined by a first interval, the interval between the time domain position where COT sharing information is transmitted and the time domain position where data of the terminal equipment sharing COT is transmitted is larger than or equal to the first interval, the COT sharing information is used for indicating relevant information of COT shared to the terminal equipment sharing COT, and the first interval is defined by network configuration, pre-configuration or protocol.

It should be noted that, the specific implementation of each operation may be described in the above-illustrated method embodiment, and the terminal device 1200 may be used to execute the method embodiment of the present application, which is not described herein.

11. Other related exemplary illustrations

In some possible implementations, the above-described method embodiments may be applied to or among terminal devices. That is, the execution body of the above-described method embodiment may be a terminal device, and may be a chip, a chip module, a module, or the like, which is not particularly limited.

The embodiments of the present application also provide a chip including a processor, a memory, and a computer program or instructions stored on the memory, where the processor executes the computer program or instructions to implement the steps described in the above method embodiments.

The embodiment of the application also provides a chip comprising a processor and a communication interface, wherein the processor executes the steps described in the embodiment of the method.

The embodiment of the application also provides a chip module, which comprises a receiving and transmitting component and a chip, wherein the chip comprises a processor, a memory and a computer program or instructions stored on the memory, and the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.

The present application also provides a computer-readable storage medium storing a computer program or instructions that, when executed, implement the steps described in the method embodiments above.

Embodiments of the present application also provide a computer program product comprising a computer program or instructions which, when executed, implement the steps described in the method embodiments above.

The embodiment of the application also provides a communication system which comprises the terminal equipment sharing the COT and the terminal equipment sharing the COT.

For the above embodiments, for simplicity of description, the same is denoted as a series of combinations of actions. Those skilled in the art will appreciate that the present application is not limited by the illustrated ordering of acts, as some steps in embodiments of the present application may be performed in other orders or concurrently. In addition, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts, steps, modules, units, etc. that are referred to are not necessarily required in the embodiments of the application.

In the foregoing embodiments, the descriptions of the embodiments of the present application are focused on each embodiment, and for a portion of one embodiment that is not described in detail, reference may be made to the related descriptions of other embodiments.

The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by executing software instructions by a processor. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, electrically Erasable EPROM (EEPROM), registers, hard disk, a removable disk, a compact disk read-only (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be located in a terminal device or a management device. The processor and the storage medium may reside as discrete components in a terminal device or management device.

Those of skill in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. Computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). Computer readable storage media can be any available media that can be accessed by a computer or data storage devices, such as servers, data centers, etc., that contain an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The respective apparatuses and the respective modules/units included in the products described in the above embodiments may be software modules/units, may be hardware modules/units, or may be partly software modules/units, and partly hardware modules/units. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware mode such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program mode, the software program runs in a processor integrated in the chip module, and the rest (if any) part of the modules/units can be realized in a hardware mode such as a circuit; for each device and product applied to or integrated in the terminal device, each module/unit contained in the device and product may be implemented in hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, etc.) or different components in the terminal device, or at least part of the modules/units may be implemented in a software program, where the software program runs on a processor integrated in the terminal device, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit.

The foregoing embodiments have been provided for the purpose of illustrating the embodiments of the present application in further detail, and it should be understood that the foregoing embodiments are merely illustrative of the embodiments of the present application and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalents, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application are included in the scope of the embodiments of the present application.

Claims

1. The channel occupation time sharing method is characterized by being applied to terminal equipment sharing the channel occupation time COT; the method comprises the following steps:

2. The method of claim 1 wherein the COT shared information is transmitted on resources of a secondary link, a sidlink.

3. The method of claim 1, wherein the first interval has a correspondence with a resource of a sidlink.

4. A method according to claim 3, wherein the correspondence is defined by a network configuration, pre-configuration or protocol.

5. The method of claim 1, wherein the COT sharing information comprises at least COT duration information, the COT duration information being used to determine a duration of a COT shared to the terminal device of the shared COT.

6. The method of claim 1, wherein the first interval has one of the following values:

the value of the first interval isThe value of the first interval is +.>The value of the first interval is

7. The method of claim 1 wherein the value of the first interval is determined at least by the time of decoding the PSCCH if the COT shared information is transmitted by a physical secondary link control channel PSCCH.

8. The method of claim 1 wherein the value of the first interval is determined by at least a time to decode a PSCCH and the PSCCH if the COT shared information is transmitted by a physical secondary link shared channel, PSSCH.

9. The method according to claim 7 or 8, wherein the value of the first interval is further determined by at least one of: the time when the terminal device of the shared COT prepares to transmit data, and the time when the terminal device of the shared COT selects transmission resources after receiving the COT sharing information.

10. The method according to any one of claims 1-9, wherein after the sending of the COT shared information, the method further comprises:

and transmitting channel occupation information, wherein the channel occupation information is used for continuously occupying channels in a first time length, and the first time length is determined by the first interval.

11. The method of claim 10, wherein the first duration is determined by the first interval, comprising:

12. The method of claim 10 wherein the channel occupancy information is sent on a sidlink resource.

13. The method of claim 10 wherein the information occupancy information is sent on a preset time-frequency resource in a sip link resource.

14. The method of any one of claims 2, 3, 12, 13, wherein the resources of the sidlink comprise one of: resource pool, listen before talk LTB bandwidth, secondary link bandwidth portion SL BWP.

15. The method of any of claims 2, 3, 12-14, wherein the sidlink operates in an unlicensed frequency band.

16. The method of claim 13, wherein the predetermined time-frequency resources comprise one of: at least one resource block RB, at least one sub-channel, at least one interlace.

17. The method of claim 10, wherein the channel occupancy information comprises one of: the method comprises the steps of transmitting new data, retransmitting data, predefining data and partially or completely copying data in a PSSCH of a physical auxiliary link of the last M times, wherein M is a positive integer.

18. The channel occupation time sharing method is characterized by being applied to terminal equipment of shared channel occupation time COT; the method comprises the following steps:

19. The method of claim 18 wherein the COT shared information is received on resources of a secondary link, a sidlink.

20. The method of claim 18, wherein the first interval has a correspondence with a resource of a sidlink.

21. The method of claim 20, wherein the correspondence is defined by a network configuration, a pre-configuration, or a protocol.

22. The method of claim 19 or 20, wherein the resources of the sidlink include one of: resource pool, listen before talk LTB bandwidth, secondary link bandwidth portion SL BWP.

23. The method of any of claims 19-22, wherein the sidlink operates in an unlicensed frequency band.

24. The method of claim 18, wherein the COT sharing information comprises at least COT duration information, the COT duration information being used to determine a duration of a COT shared to the terminal device of the shared COT.

25. The method of claim 18, wherein the first interval has one of the following values:

the value of the first interval is The value of the first interval is +.>The value of the first interval is

26. The method of claim 18 wherein the value of the first interval is determined at least by the time to decode the PSCCH if the COT shared information is transmitted by a physical secondary link control channel PSCCH.

27. The method of claim 18 wherein the value of the first interval is determined by at least the time to decode the PSCCH and the PSCCH if the COT shared information is transmitted by a physical secondary link shared channel, PSSCH.

28. The method of claim 26 or 27, wherein the value of the first interval is further determined by at least one of: the time when the terminal device of the shared COT prepares to transmit data, and the time when the terminal device of the shared COT selects transmission resources after receiving the COT sharing information.

29. The channel occupation time sharing method is characterized by being applied to terminal equipment sharing the channel occupation time COT; the method comprises the following steps:

30. The method of claim 29, wherein the first duration is determined by the first interval, comprising:

31. The method of claim 29 wherein the channel occupancy information is sent on resources of a secondary link, a sidlink.

32. The method of claim 29 wherein the information occupancy information is sent on a preset time-frequency resource in a sip link resource.

33. The method of claim 32, wherein the predetermined time-frequency resources comprise one of: at least one resource block RB, at least one sub-channel, at least one interlace.

34. The method of claim 29, wherein the first interval has a correspondence with a resource of a sidlink.

35. The method of claim 34, wherein the correspondence is defined by a network configuration, pre-configuration, or protocol.

36. The method of claim 29, wherein the channel occupancy information comprises one of: new transmitted data, retransmitted data, predefined data, partially or fully replicated data in the previous M times of physical secondary link shared channel PSSCH.

37. The method according to any one of claims 29-36, wherein prior to said transmitting channel occupancy information, the method further comprises:

and sending the COT sharing information.

38. The method of any of claims 29-37, wherein the COT shared information is sent on a resource of a sidlink.

39. The method of any one of claims 31, 32, 34, 38, wherein the resources of the sidlink comprise one of: resource pool, listen before talk LTB bandwidth, secondary link bandwidth portion SL BWP.

40. The method of any one of claims 31, 32, 34, 38, 39, wherein the sidlink operates in an unlicensed frequency band.

41. The method according to any of claims 29-37, wherein the COT sharing information comprises at least COT duration information for determining a duration of a COT shared to the terminal device of the shared COT.

42. The method of any one of claims 29-37, wherein the first interval has one of the following values:

43. The method according to any of claims 29-37, wherein the value of the first interval is determined at least by the time of decoding the PSCCH if the COT shared information is transmitted by a physical secondary link control channel PSCCH.

44. The method according to any of claims 29-37, wherein the value of the first interval is determined at least by the time of decoding the PSCCH and the PSCCH if the COT shared information is transmitted by a PSCCH.

45. The method of claim 43 or 44, wherein the value of the first interval is further determined by at least one of: the time when the terminal device of the shared COT prepares to transmit data, and the time when the terminal device of the shared COT selects transmission resources after receiving the COT sharing information.

46. A channel occupancy time sharing apparatus, comprising:

47. A channel occupancy time sharing apparatus, comprising:

48. A channel occupancy time sharing apparatus, comprising:

49. A terminal device being a terminal device sharing a channel occupation time COT, characterized by comprising a processor, a memory and a computer program or instructions stored on the memory, the processor executing the computer program or instructions to implement the steps of the method of any of claims 1-17, 29-45.

50. A terminal device being a terminal device occupied by a shared channel for a time COT, comprising a processor, a memory and a computer program or instructions stored on the memory, the processor executing the computer program or instructions to carry out the steps of the method of any one of claims 18-28.

51. A chip comprising a processor and a communication interface, wherein the processor performs the steps of the method of any one of claims 1-17, 18-28, 29-45.

52. A computer readable storage medium, characterized in that it stores a computer program or instructions which, when executed, implement the steps of the method of any one of claims 1-17, 18-28, 29-45.