CN116582232B

CN116582232B - Monitoring method, communication device and storage medium

Info

Publication number: CN116582232B
Application number: CN202310861991.1A
Authority: CN
Inventors: 沈兴亚; 谢毅力; 黄伟
Original assignee: Shenzhen Transsion Holdings Co Ltd
Current assignee: Shenzhen Transsion Holdings Co Ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2023-12-26
Anticipated expiration: 2043-07-14
Also published as: CN116582232A

Abstract

The application provides a monitoring method, a communication device and a storage medium, wherein the monitoring method can be used for a communication terminal and comprises the following steps: the transmitting terminal transmits the control channel, and the receiving terminal monitors the first control channel according to the receiving result of the channel occupation time information. By the technical scheme, in one COT, the receiving terminal only uses one candidate starting position on one side link time slot, so that PSCCH blind solution complexity of the receiving terminal is reduced, continuous transmission is ensured, and spectrum efficiency is improved.

Description

Monitoring method, communication device and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a monitoring method, a communications device, and a storage medium.

Background

In Rel-16/17, the receiving terminal attempts to listen to the PSCCH (Physical Sidelink Control Channel ) on each sidelink slot. In SL-U, two start positions are introduced in one sidelink slot in order for the transmitting terminal to access the unlicensed spectrum quickly. In the time domain, the receiving terminal therefore needs to listen to the PSCCH at two start positions on each sidelink slot.

In the process of designing and implementing the present application, the inventors found that at least the following problems exist: the above scheme doubles the requirements for PSCCH listening compared to Rel-16/17, which increases the complexity of blind PSCCH solutions for receiving terminals. If multiple start positions are supported in one sidelink slot, as in SL-U, the number of blind solutions of the candidate PSCCH by the receiving terminal may exceed the blind solution capability of the receiving terminal, resulting in the receiving terminal not being able to correctly receive the PSCCH and/or schedule the PSCCH (Physical Sidelink Shared Channel ).

The foregoing description is provided for general background information and does not necessarily constitute prior art.

Disclosure of Invention

Aiming at the technical problems, the application provides a monitoring method, communication equipment and a storage medium, aiming at reducing PSCCH blind solution complexity of a receiving terminal.

The application provides a monitoring method which can be applied to terminal equipment (such as a mobile phone) and comprises the following steps:

s20: and monitoring a first control channel according to the receiving result of the channel occupation time information.

Optionally, the receiving result of the channel occupation time information includes at least one of the following:

receiving channel occupation time information;

No channel occupation time information is received.

Optionally, the step S20 includes:

if the channel occupation time information is received, at least one of the following is performed:

monitoring a first control channel at a candidate position of a side link time slot;

monitoring a first control channel at each candidate location of a first side link slot of the channel occupation time;

monitoring a first control channel at a first candidate location of the other time slots of the channel occupation time except for the first side link time slot;

the first control channel is listened to at each candidate position on one side link slot after the end of the channel occupation time.

Optionally, the step S20 includes:

if the channel occupation time information is not received, at least one of the following is performed:

monitoring a first control channel at two candidate positions of a side chain time slot;

and monitoring a first control channel according to the first information.

Optionally, the first information includes at least one of:

a second control channel;

demodulation reference signals of a second control channel;

candidate locations for the first control channel.

Optionally, the monitoring the first control channel according to the first information includes at least one of the following:

If the second control channel is detected at the first candidate position of the side link time slot, the first control channel is not monitored at the second candidate position of the side link time slot;

if the second control channel is not detected at the first candidate position of the side link time slot, monitoring the first control channel at the second candidate position of the side link time slot;

if the RSRP of the demodulation reference signal of the second control channel is detected to be greater than or equal to a threshold value at the first candidate position of the side link time slot, the first control channel is not monitored at the second candidate position of the side link time slot;

if the RSRP of the demodulation reference signal of the second control channel is detected to be smaller than a threshold value at the first candidate position of the side link time slot, monitoring the first control channel at the second candidate position of the side link time slot;

monitoring a first control channel on all sub-channels of a first candidate position of a side link time slot;

monitoring a first control channel on partial sub-channels of the first candidate position and/or the second candidate position of the side link time slot;

and monitoring the first control channel on all sub-channels of the first candidate position of the side link time slot, and monitoring the first control channel on part of sub-channels of the second candidate position of the side link time slot.

Optionally, the monitoring the first control channel according to the first information further includes at least one of the following:

when the blind solution control channel of a receiving terminal in a side link time slot exceeds the blind solution budget, monitoring a first control channel on all sub-channels in a first candidate position of one side link time slot, and monitoring a first control channel on part of sub-channels in a second candidate position of one side link time slot;

when the blind solution control channel of the receiving terminal in the side link time slot exceeds the blind solution budget, discarding the first control channel on the monitoring part sub-channel according to the size of the sub-channel index until the sum of the monitoring opportunities of the first control channel does not exceed the blind solution budget;

when the blind solution control channel of the receiving terminal exceeds the blind solution budget in the side link time slot, the opportunity of monitoring the first control channel on part of the sub-channels is abandoned until the sum of the monitoring opportunities of the first control channel does not exceed the blind solution budget.

Optionally, the rule of discarding the first control channel on the listening portion sub-channel includes at least one of:

the receiving terminal firstly gives up monitoring of the first control channel from the second candidate position in the time domain, and firstly gives up monitoring of the first control channel from the sub-channel with the largest sub-channel index in the frequency domain until the opportunity of monitoring the first control channel on the rest sub-channels does not exceed the blind solution budget of the receiving terminal;

If the receiving terminal gives up the first control channel monitor on all the sub-channels of the second candidate position, and then the sum of the monitor opportunities exceeds the blind solution budget, the receiving terminal gives up monitoring the first control channel from the first candidate position according to the sub-channel index from large to small until the opportunity of monitoring the first control channel on the rest sub-channels does not exceed the blind solution budget of the receiving terminal.

Optionally, the method further comprises at least one of:

the first candidate position and/or the second candidate position corresponds to a candidate starting position of a control channel transmitted by the transmitting terminal;

the first candidate location and/or the second candidate location is indicated by a high-level parameter;

the first candidate position and/or the second candidate position is time domain information and consists of a starting position and a continuous symbol number;

determining the frequency domain position of a partial sub-channel according to the destination ID;

and determining the frequency domain position of the partial sub-channel according to the source ID and/or the destination ID.

The application also provides a monitoring method which can be applied to terminal equipment (such as a mobile phone) and comprises the following steps:

s10: and transmitting the control channel and/or the data channel so that the receiving terminal monitors the first control channel according to the receiving result of the channel occupation time information.

Optionally, the control channel includes at least one of:

control channels and/or data channels carrying channel occupancy time information;

a first control channel;

and a second control channel.

Optionally, the sending control channel and/or data channel includes at least one of:

transmitting a first control channel at each candidate location of a first side link slot of the channel occupation time;

transmitting a first control channel at a first candidate location of the channel occupation time other than the first side link slot;

transmitting a first control channel at each candidate position on a side link slot after the end of the channel occupation time;

the control channel and/or data channel carrying the channel occupation time information is transmitted at a first candidate position of a first side link time slot of the channel occupation time.

Optionally, the first control channel is transmitted at each candidate location of the side link slot, including at least one of:

transmitting a first control channel on all sub-channels of a first candidate location of the side link time slot;

transmitting a first control channel on a part of sub-channels of the first candidate position and/or the second candidate position of the side link time slot;

The first control channel is transmitted on all sub-channels of the first candidate location of the side link slot and the first control channel is transmitted on a portion of the sub-channels of the second candidate location of the side link slot.

Optionally, the method further comprises at least one of:

Optionally, the receiving terminal listens to the first control channel according to the receiving result of the channel occupation time information, including at least one of the following:

if the channel occupation time information is received, the receiving terminal performs at least one of the following:

Monitoring a first control channel at two candidate positions on a side link time slot after the channel occupation time is finished;

if the channel occupation time information is not received, the receiving terminal performs at least one of the following:

and monitoring a first control channel according to the first information.

Optionally, the first information includes at least one of:

a second control channel;

demodulation reference signals of a second control channel;

candidate locations for the first control channel.

Optionally, the receiving terminal listens to the first control channel according to the first information, including at least one of the following:

if the second control channel is detected at the first candidate position of the side link time slot, the receiving terminal does not monitor the first control channel at the second candidate position of the side link time slot;

if the second control channel is not detected at the first candidate position of the side link time slot, the receiving terminal monitors the first control channel at the second candidate position of the side link time slot;

if the RSRP of the demodulation reference signal of the second control channel detected at the first candidate position of the side link time slot is greater than or equal to a threshold value, the receiving terminal does not monitor the first control channel at the second candidate position of the side link time slot;

If the RSRP of the demodulation reference signal of the second control channel detected at the first candidate position of the side link time slot is smaller than the threshold value, the receiving terminal monitors the first control channel at the second candidate position of the side link time slot.

The application also provides a monitoring device, which comprises:

and the monitoring module is used for monitoring the first control channel according to the receiving result of the channel occupation time information.

The application also provides a monitoring device, which comprises:

and the sending module is used for sending the control channel so that the receiving terminal monitors the first control channel according to the receiving result of the channel occupation time information.

The present application also provides a communication device comprising: a memory, a processor, and a snoop program stored on the memory and executable on the processor, the snoop program when executed by the processor implementing a snoop method as claimed in any one of the preceding claims.

The communication device mentioned in the present application may be a terminal device (such as an intelligent terminal, specifically, a mobile phone), or may be a network device (such as a base station), which specifically refers to a device that needs to be explicitly combined with the context.

The present application also provides a storage medium having stored thereon a computer program which, when executed by a processor, implements a listening method as described in any one of the above.

As described above, the listening method of the present application may be applied to a communication device, and includes: and the receiving terminal monitors the first control channel according to the receiving result of the channel occupation time information. According to the technical scheme, in one COT, the receiving terminal only uses one candidate starting position on one side-chain time slot, so that PSCCH blind solution complexity of the receiving terminal is reduced, continuous transmission is ensured, and spectrum efficiency is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic hardware structure of a mobile terminal implementing various embodiments of the present application;

fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present application;

fig. 3 is a schematic hardware structure of the controller 140 according to an embodiment of the listening method of the present application;

Fig. 4 is a schematic hardware structure diagram of a network node 150 according to an embodiment of the listening method of the present application;

FIG. 5 is a schematic flow chart of a first embodiment of the treatment method of the present application;

fig. 6 is a schematic diagram of a side-chain slot in an embodiment of a monitoring method of the present application;

fig. 7-11 are schematic diagrams of a control channel monitoring on a side-link slot in an embodiment of the monitoring method of the present application.

The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings. Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element, and furthermore, elements having the same name in different embodiments of the present application may have the same meaning or may have different meanings, a particular meaning of which is to be determined by its interpretation in this particular embodiment or by further combining the context of this particular embodiment.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or," "and/or," "including at least one of," and the like, as used herein, may be construed as inclusive, or meaning any one or any combination. For example, "including at least one of: A. b, C "means" any one of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C ", again as examples," A, B or C "or" A, B and/or C "means" any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in sequence, but may be performed alternately or alternately with other steps or at least a portion of the other steps or stages.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

It should be noted that, in this document, step numbers such as S10 and S20 are adopted, and the purpose of the present invention is to more clearly and briefly describe the corresponding content, and not to constitute a substantial limitation on the sequence, and those skilled in the art may execute S20 first and then execute S10 when implementing the present invention, which is within the scope of protection of the present application.

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present application, and are not of specific significance per se. Thus, "module," "component," or "unit" may be used in combination.

The communication device mentioned in the present application may be a terminal device (such as a mobile terminal, specifically, a mobile phone), or may be a network device (such as a base station), and specifically, the reference needs to be explicitly combined with the context.

Alternatively, the terminal device may be implemented in various forms. For example, the terminal devices described in the present application may include smart terminals such as cell phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and stationary terminals such as digital TVs, desktop computers, and the like.

The following description will be given taking a mobile terminal as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present application can be applied to a fixed type terminal in addition to elements particularly used for a moving purpose.

Referring to fig. 1, which is a schematic hardware structure of a mobile terminal implementing various embodiments of the present application, the mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will appreciate that the mobile terminal structure shown in fig. 1 is not limiting of the mobile terminal and that the mobile terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

The following describes the components of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be used for receiving and transmitting signals during the information receiving or communication process, specifically, after receiving downlink information of the base station, processing the downlink information by the processor 110; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol including, but not limited to, GSM (Global System of Mobile communication, global system for mobile communications), GPRS (General Packet Radio Service ), CDMA2000 (Code Division Multiple Access, 2000, CDMA 2000), WCDMA (Wideband Code Division Multiple Access ), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time Division synchronous code Division multiple access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency Division duplex long term evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution, time Division duplex long term evolution), 5G, 6G, and the like.

WiFi belongs to a short-distance wireless transmission technology, and a mobile terminal can help a user to send and receive e-mails, browse web pages, access streaming media and the like through the WiFi module 102, so that wireless broadband Internet access is provided for the user. Although fig. 1 shows a WiFi module 102, it is understood that it does not belong to the necessary constitution of a mobile terminal, and can be omitted entirely as required within a range that does not change the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the mobile terminal 100. The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive an audio or video signal. The a/V input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting the audio signal.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor, optionally, the ambient light sensor may adjust the brightness of the display panel 1061 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 1061 and/or the backlight when the mobile terminal 100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; as for other sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured in the mobile phone, the detailed description thereof will be omitted.

The display unit 106 is used to display information input by a user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the mobile terminal. Alternatively, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 1071 or thereabout by using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Optionally, the touch detection device detects the touch azimuth of the user, detects a signal brought by touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 110, and can receive and execute commands sent from the processor 110. Further, the touch panel 1071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 107 may include other input devices 1072 in addition to the touch panel 1071. Alternatively, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc., as specifically not limited herein.

Alternatively, the touch panel 1071 may overlay the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or thereabout, the touch panel 1071 is transferred to the processor 110 to determine the type of touch event, and the processor 110 then provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in fig. 1, the touch panel 1071 and the display panel 1061 are two independent components for implementing the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 may be integrated with the display panel 1061 to implement the input and output functions of the mobile terminal, which is not limited herein.

The interface unit 108 serves as an interface through which at least one external device can be connected with the mobile terminal 100. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and an external device.

Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, and alternatively, the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor, the application processor optionally handling mainly an operating system, a user interface, an application program, etc., the modem processor handling mainly wireless communication. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power source 111 (e.g., a battery) for supplying power to the respective components, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described herein.

In order to facilitate understanding of the embodiments of the present application, a communication network system on which the mobile terminal of the present application is based will be described below.

Referring to fig. 2, fig. 2 is a schematic diagram of a communication network system provided in the embodiment of the present application, where the communication network system is an LTE system of a general mobile communication technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network ) 202, an epc (Evolved Packet Core, evolved packet core) 203, and an IP service 204 of an operator that are sequentially connected in communication.

Alternatively, the UE201 may be the terminal 100 described above, which is not described here again.

The E-UTRAN202 includes eNodeB2021 and other eNodeB2022, etc. Alternatively, the eNodeB2021 may connect with other enodebs 2022 over a backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide access for the UE201 to the EPC 203.

EPC203 may include MME (Mobility Management Entity ) 2031, HSS (Home Subscriber Server, home subscriber server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, PGW (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function, policy and tariff function entity) 2036, and the like. Optionally, MME2031 is a control node that handles signaling between UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location registers (not shown) and to hold user specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034 and PGW2035 may provide IP address allocation and other functions for UE201, PCRF2036 is a policy and charging control policy decision point for traffic data flows and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem ), or other IP services, etc.

Although the LTE system is described above as an example, it should be understood by those skilled in the art that the present application is not limited to LTE systems, but may be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G, and future new network systems (e.g., 6G), etc.

Based on the above-mentioned mobile terminal hardware structure and communication network system, various embodiments of the present application are presented.

Fig. 3 is a schematic hardware structure of the controller 140 provided in the present application. The controller 140 includes: the memory 1401 and the processor 1402, the memory 1401 is configured to store program instructions, and the processor 1402 is configured to invoke the program instructions in the memory 1401 to execute the steps executed by the controller in the first embodiment of the method, so that the implementation principle and the beneficial effects are similar, and no further description is given here.

Optionally, the controller further comprises a communication interface 1403, which communication interface 1403 may be connected to the processor 1402 via a bus 1404. The processor 1402 may control the communication interface 1403 to implement the functions of receiving and transmitting of the controller 140.

Fig. 4 is a schematic hardware structure of a network node 150 provided in the present application. The network node 150 comprises: the memory 1501 and the processor 1502, the memory 1501 is configured to store program instructions, and the processor 1502 is configured to invoke the program instructions in the memory 1501 to execute the steps executed by the first node in the first embodiment of the method, so that the implementation principle and the beneficial effects are similar, and no further description is given here.

Optionally, the controller further includes a communication interface 1503, where the communication interface 1503 may be connected to the processor 1502 through a bus 1504. The processor 1502 may control the communication interface 1503 to implement the functionality of receiving and transmitting of the network node 150.

The integrated modules, which are implemented in the form of software functional modules, may be stored in a computer readable storage medium. The software functional module is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (english: processor) to perform some steps of the methods of the embodiments of the present application.

Technical terms to which embodiments of the present application relate:

PSCCH, physical Sidelink Control Channel, physical side link control channel;

PSSCH, physical Sidelink Shared Channel, physical side link shared channel;

COT, channel Occupancy Timing, channel occupancy time;

RB set, resource Block set, resource block set;

LBT, listen Before Talk, listen before talk, a listening mechanism

Sidelink, side link;

SCI, sidelink Control Information, side link control information.

First embodiment

Referring to fig. 5, a first embodiment of the present application proposes a monitoring method, which can be applied to a terminal device (such as a mobile phone), and includes the steps of:

s10: the transmitting terminal transmits the control channel and/or the data channel so that the receiving terminal monitors the first control channel according to the receiving result of the channel occupation time information.

S20: and the receiving terminal monitors the first control channel according to the receiving result of the channel occupation time information.

Optionally, the receiving result of the channel occupation time information includes: the receiving terminal receives the channel occupation time information and/or the receiving terminal does not receive the channel occupation time information.

Optionally, before obtaining the Channel Occupation Time (COT), the transmitting terminal needs to prepare a physical side link control channel (PSCCH) and a physical side link shared channel (PSSCH) in advance, and then perform LBT, i.e., perform Type 1 channel access (Type 1 channel access).

Optionally, the type 1 channel access is used for side channel transmission access to unlicensed spectrum.

Alternatively, the Type 1 channel access may be referred to as Type 1 side link channel access (Type 1 SL channel access).

Optionally, in order for the transmitting terminal to be able to quickly access the unlicensed spectrum, two candidate start positions are set for a side link (sidelink) slot. And the transmitting terminal transmits the PSCCH channel and/or the PSSCH channel at the first or second candidate position corresponding to the first or second candidate starting position according to the LBT result.

At this time, the receiving terminal does not receive the channel occupation time information, and the receiving terminal needs to monitor the PSCCH channel at two candidate positions of the side link time slot.

It follows that, outside the channel occupation time, or the receiving terminal does not receive the channel occupation time information, the receiving terminal listens to the PSCCH channel at two candidate positions of the side link time slot.

Optionally, the candidate start position is a symbol position on one slot. One slot has a candidate start position thereon. The candidate start position is configured by higher layer signaling with a value of {0,1,2,3,4,5,6}.

Optionally, the candidate start position is a symbol position on one slot. There are two candidate start positions on one slot. The candidate start positions are configured by higher layer signaling (e.g., RRC messages), optionally with the first candidate start position having a value of {0,1,2,3,4,5,6}, and the second candidate start position having a value of {3,4,5,6,7}.

Optionally, the channel occupation time refers to the total time of the terminal and any terminal occupied by the shared channel for transmitting on the channel after the terminal executes the corresponding channel access procedure. To determine the channel occupancy time, if the transmission gap is less than or equal to 25 microseconds, the gap duration is calculated in the channel occupancy time. The channel occupation time can be shared between the transmitting terminal and the corresponding terminal.

Optionally, the channel occupation time refers to before the terminal occupies the channel and sends the corresponding transmission.

Alternatively, the channel occupation time is outside the total time of the transmission of the terminal and any shared channel occupied terminals on the channel.

Optionally, the channel occupation time refers to the total time of transmission of the terminal and any shared channel occupied terminal on the channel.

Optionally, after the sending terminal obtains the channel occupation time, in order to ensure continuous transmission, the side link time slot only needs one candidate starting position, that is, the sending terminal only needs to send the PSCCH channel at the candidate position corresponding to the candidate starting position. Similarly, the receiving terminal only needs to monitor the PSCCH channel at candidate locations of the sidelink slots.

And within the channel occupation time, namely the receiving terminal receives the channel occupation time information, the receiving terminal monitors the PSCCH channel at a candidate position of the side link time slot.

Optionally, the candidate start position is a first candidate start position of a side link slot.

Optionally, the candidate position is configured by higher layer signaling (e.g. RRC message), the candidate position being the first and second symbols after the candidate start position; alternatively, the candidate position is the first to third symbols after the candidate start position. For example, if the candidate start position is symbol #0, the candidate positions are symbol #1 and symbol #2, or the candidate positions are symbol #1, symbol #2, and symbol #3.

Optionally, there is a correspondence between the candidate position and the candidate start position, for example, the start symbol of the first candidate position is one symbol after the first candidate start position; for another example, the start symbol of the second candidate position is one symbol after the second candidate start position.

Optionally, the candidate position includes at least time domain information, and is composed of a starting position and a continuous symbol number.

Optionally, the candidate location includes at least frequency domain information, and is composed of at least one of a number of resource blocks and subchannel information.

According to the technical scheme, the receiving terminal monitors the first control channel according to the receiving result of the channel occupation time information, and only one candidate starting position is used by the receiving terminal on one side link time slot in one channel occupation time, so that PSCCH blind solution complexity of the receiving terminal is reduced, continuous transmission is ensured, and frequency spectrum efficiency is improved.

Second embodiment

Based on the above embodiments, a second embodiment of the present application proposes a listening method, which may be applied to a terminal device (such as a mobile phone), including:

the transmitting terminal transmits the control channel and/or the data channel, and the receiving terminal monitors the first control channel according to the receiving result of the channel occupation time information.

Optionally, the receiving terminal receiving the channel occupation time information includes: the receiving terminal receives the SCI carrying the channel occupation time information.

Optionally, the receiving terminal not receiving the channel occupation time information includes: the receiving terminal does not receive the SCI carrying the channel occupation time information.

Optionally, the SCI carrying the channel occupation time is a first stage SCI (1 st-stage SCI) carried on a PSCCH channel.

Optionally, the SCI carrying the channel occupation time is a second stage SCI (2 nd-stage SCI) carried on a PSSCH channel.

Optionally, the control channel and/or the data channel comprises at least one of: control channels and/or data channels carrying time information, a first control channel, a second control channel.

Optionally, the transmitting terminal transmits a control channel and/or a data channel, including at least one of:

the control channel carrying the channel occupation time information is transmitted at a first candidate position of a first side link slot of the channel occupation time.

Optionally, in a case where the receiving terminal receives the channel occupation time information as a result of the receiving of the channel occupation time information, the step S20 may include at least one of:

the receiving terminal monitors a first control channel at a candidate position of a side chain time slot;

the receiving terminal monitors a first control channel at each candidate position of a first side link time slot of the channel occupation time;

the receiving terminal monitors a first control channel at a first candidate position of other time slots except the first side chain time slot in the channel occupation time;

the receiving terminal listens to the first control channel at each candidate position on one side link slot after the end of the channel occupation time.

Specifically, before obtaining the Channel Occupation Time (COT), the transmitting terminal needs to prepare a physical side link control channel (PSCCH) and a physical side link shared channel (PSSCH) in advance, and then perform LBT, i.e., type 1 channel access (Type 1 channel access).

Optionally, there is a correspondence between the candidate position and the candidate start position, for example, the start symbol of the first candidate position is one symbol after the first candidate start position; the start symbol of the second candidate position is one symbol after the second candidate start position.

Optionally, the receiving terminal listens to the PSCCH channel at a candidate location of the side link slot within the channel occupation time, i.e. after the receiving terminal receives the channel occupation time information.

Optionally, after the receiving terminal receives SCI (side link control information) carrying the channel occupation time information, the receiving terminal listens to the first control channel at two candidate positions of the first side link slot of the channel occupation time.

Optionally, after the receiving terminal receives the SCI carrying the channel occupation time information, the receiving terminal listens to the first control channel at a candidate position on the side link slots except for the first side link slot of the channel occupation time.

Optionally, the first side link time slot of the channel occupation time is a side link time slot where the channel occupation time information is received.

Optionally, the one candidate location is a first candidate location within a side link slot.

Optionally, after the receiving terminal receives the SCI carrying the channel occupation time information, the receiving terminal monitors the first control channel at two candidate positions on one side link slot after the channel occupation time is finished.

Specifically, as shown in fig. 6, within the COT, the receiving terminal listens to the PSCCH channel at a candidate location of the sidelink slot.

After receiving the SCI carrying the COT information, the receiving terminal listens to the PSCCH channel at two candidate positions of the first side link slot of the COT.

Optionally, the first side link timeslot of the COT is a timeslot where the SCI carrying the COT information received by the receiving terminal is located.

Optionally, after the receiving terminal receives the SCI carrying the COT information, the receiving terminal listens to the PSCCH channel at two candidate positions of each slot P1 symbols before the slot n where the SCI carrying the COT is received, where n and P1 are natural numbers.

After receiving the SCI carrying the COT information, the receiving terminal listens to the PSCCH channel at a first candidate location on a side link slot of the COT except for the first side link slot.

Optionally, after the receiving terminal receives the SCI carrying the COT information, the receiving terminal listens to the PSCCH channel at the first candidate position of the first complete slot P1 symbols after receiving the slot n where the SCI carrying the COT is located, where n and P1 are natural numbers.

Optionally, after the receiving terminal receives the SCI carrying the COT information, the receiving terminal listens to the PSCCH channel at the first candidate position of the slot within the COT after P1 symbols after receiving the slot n where the SCI carrying the COT is located, where n and P1 are natural numbers.

After receiving SCI carrying COT information, receiving terminal monitors PSCCH channel at two candidate positions on one side link time slot after COT is finished.

Optionally, after the receiving terminal receives the SCI carrying the COT information, the receiving terminal listens to the PSCCH channel at two candidate positions on the first complete side link slot after the end of the COT.

Optionally, after the receiving terminal receives the SCI carrying the COT information, the receiving terminal listens to the PSCCH channel at two candidate positions of the first complete side link slot and the slot after P2 symbols after the end of the COT.

Third embodiment

Based on any of the foregoing embodiments, a third embodiment of the present application provides a monitoring method, where the method may be applied to a terminal device (such as a mobile phone), and includes:

Optionally, in a case where the reception result of the channel occupation time information is that the channel occupation time information is not received, the step S20 may include at least one of:

and monitoring a first control channel according to the first information.

Optionally, the first information includes at least one of: the second control channel, a demodulation reference signal of the second control channel, a candidate location of the first control channel.

if the reference signal received power (Reference Signal Received Power, RSRP) of the demodulation reference signal (Demodulation Reference Signal, DMRS) of the second control channel is detected to be greater than or equal to a first threshold value at the first candidate position of the side link slot, not monitoring the first control channel at the second candidate position of the side link slot;

if the reference signal received power (Reference Signal Received Power, RSRP) of a demodulation reference signal (Demodulation Reference Signal, DMRS) of the second control channel is detected to be less than a second threshold value at a first candidate position of a side link slot, the first control channel is monitored at a second candidate position of the side link slot.

Optionally, the first threshold is configured by higher layer signaling (e.g., RRC message).

Optionally, the second threshold is configured by higher layer signaling (e.g., RRC messages).

Optionally, the first threshold value is equal to the second threshold value.

Optionally, the RSRP of the demodulation reference signal is a linear average of the power contributions (in W) carried on the resource elements of the demodulation reference signal associated with the physical side link control channel (PSCCH).

Optionally, the RSRP of the demodulation reference signal is PSCCH-RSRP.

Optionally, the RSRP of the demodulation reference signal is PSSCH-RSRP.

Alternatively, when the receiving terminal does not receive the SCI carrying the channel occupation time information, the receiving terminal listens to the PSCCH channel at two candidate positions of one side link slot.

Alternatively, when the receiving terminal does not receive the SCI carrying the channel occupancy time information, but the receiving terminal receives the PSCCH channel at a first candidate location of a side link slot, the receiving terminal does not monitor the PSCCH channel at a second candidate location of the side link slot.

Optionally, when the receiving terminal does not receive the SCI carrying the channel occupancy time information, but the receiving terminal detects that the RSRP of PSCCH DMRS is greater than or equal to the threshold at the first candidate position of a side link slot, the receiving terminal does not monitor the PSCCH channel at the second candidate position of the side link slot.

Alternatively, when the receiving terminal does not receive the SCI carrying the channel occupancy time information, but the RSRP of PSCCH DMRS detected by the receiving terminal at the first candidate position of a side link slot is less than the threshold, the receiving terminal listens to the PSCCH channel at the second candidate position of the side link slot.

Optionally, the transmitting terminal transmits the SCI carrying the channel occupation time information at the position where the channel occupation time starts, and if the receiving terminal does not successfully solve the SCI carrying the channel occupation time information, the receiving terminal detects that the RSRP of PSCCH DMRS is greater than or equal to the threshold, and the receiving terminal considers that the RSRP is within the COT.

Optionally, the transmitting terminal transmits the SCI carrying the channel occupation time information at the position where the channel occupation time starts, and if the receiving terminal does not successfully solve the SCI carrying the channel occupation time information, the receiving terminal detects that the RSRP of PSCCH DMRS is smaller than the threshold, and the receiving terminal considers that it is out of the COT.

Specifically, as shown in fig. 6, the transmitting terminal needs to prepare a physical side link control channel (PSCCH) and a physical side link shared channel (PSSCH) in advance before obtaining a Channel Occupation Time (COT), and then perform LBT, i.e., type 1 channel access (Type 1 channel access).

Optionally, in order for the transmitting terminal to be able to quickly access the unlicensed spectrum, two candidate start positions are set for the side link slots. The transmitting terminal transmits the PSCCH channel and the PSSCH channel at the first or second candidate start position according to the LBT result.

Alternatively, outside the COT, the receiving terminal listens to the PSCCH channel on two candidate locations of the side link slot.

Optionally, after the transmitting terminal obtains the COT, in order to ensure continuous transmission, only one candidate starting position is needed for the side link timeslot, that is, the transmitting terminal only needs to transmit the PSCCH channel at the candidate position corresponding to the candidate starting position. Similarly, the receiving terminal only needs to monitor the PSCCH channel at one candidate location of the sidelink slot.

Optionally, within the COT, the receiving terminal listens to the PSCCH channel at a candidate location of the side link slot.

Alternatively, when the receiving terminal does not receive the SCI carrying the COT information, the receiving terminal listens to the PSCCH channel at two candidate locations of one side link slot.

Alternatively, when the receiving terminal does not receive the SCI carrying the COT information, but the receiving terminal receives the PSCCH channel at a first candidate location of a side link slot, the receiving terminal does not monitor the PSCCH channel at a second candidate location of the side link slot.

Alternatively, when the receiving terminal does not receive the SCI carrying the COT information and the receiving terminal does not receive the PSCCH channel at the first candidate position of one side link slot, the receiving terminal listens to the PSCCH channel at the second candidate position of the side link slot.

Alternatively, when the receiving terminal does not receive the SCI carrying the COT information, but the receiving terminal detects PSCCH DMRS greater than or equal to the threshold at the first candidate position of one side link slot, the receiving terminal does not monitor the PSCCH channel at the second candidate position of the side link slot.

Optionally, when the receiving terminal does not receive the SCI carrying the COT information and the receiving terminal detects PSCCH DMRS to be less than the threshold at the first candidate position of one side link slot, the receiving terminal listens to the PSCCH channel at the second candidate position of the side link slot.

Optionally, the sending terminal sends the SCI carrying the COT information at the location where the COT starts, and if the receiving terminal does not successfully solve the SCI carrying the COT information, but the receiving terminal detects that the RSRP of PSCCH DMRS is greater than or equal to the threshold, the receiving terminal considers that it is within the COT.

Fourth embodiment

Based on any of the foregoing embodiments, a fourth embodiment of the present application provides a monitoring method, where the method may be applied to a terminal device (such as a mobile phone), and includes:

Optionally, the transmitting terminal transmits the first control channel at each candidate location of the side link slot, including at least one of:

Optionally, the receiving terminal listens to the first control channel according to the first information, and at least one of the following is included:

Optionally, the blind solution budget is a maximum number of blind solution physical side link control channels of the receiving terminal in one side link time slot.

Optionally, the blind solution budget has a value related to the subcarrier spacing, for example, 44 times for a 15kHz SCS and 32 times for a 30kHz SCS.

Optionally, the sub-channel is composed of N consecutive resource blocks, where the value of N is configured or preconfigured by a higher layer parameter (e.g. RRC message). For example, N has one of {10, 12, 15, 20, 25, 50, 75, 100 }. Wherein the first resource block identification of the first subchannel within the partial Bandwidth (BWP) is indicated by a higher layer parameter (e.g. RRC message). Within one BWP, the subchannels are continuously distributed.

Optionally, the sub-channel is composed of K interleaving resources (interlaces), where the value of K is configured or preconfigured by a higher layer parameter (e.g. RRC message). For example, K has one of {1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }. One interleaving resource comprises 10 or 11 resource blocks, which are equally spaced within the carrier bandwidth, i.e. the spacing between adjacent resource blocks within one interleaving resource is 10 resource blocks. The carrier bandwidth is about 20MHz.

Optionally, the method further comprises at least one of:

the first candidate position and/or the second candidate position at least comprise time domain information, and consist of a starting position and a continuous symbol number;

the first candidate position and/or the second candidate position at least comprise frequency domain information and consist of at least one of the number of resource blocks and sub-channel information;

Specifically, as shown in fig. 7 and 8, before obtaining the Channel Occupation Time (COT), the transmitting terminal needs to prepare a physical side link control channel (PSCCH) and a physical side link shared channel (PSSCH) in advance and then perform LBT, i.e., type 1 channel access (Type 1 channel access).

Optionally, in order for the transmitting terminal to be able to quickly access the unlicensed spectrum, two candidate start positions are set for the side link slots. And the transmitting terminal transmits the PSCCH channel and/or the PSSCH channel at the first or second candidate position corresponding to the first or second candidate starting position according to the LBT result.

Optionally, the receiving terminal listens to the PSCCH channel at a candidate location in the side link slot within the channel occupation time, i.e. the receiving terminal receives the channel occupation time information.

Alternatively, outside the COT, the transmitting terminal may attempt to transmit the PSCCH channel on each subchannel (subshannel) of the first candidate location of each side link slot, and if LBT fails at the first candidate location, attempt to transmit the PSCCH channel on each subchannel of the second candidate location.

Alternatively, outside the COT, the receiving terminal listens to the PSCCH channel on all sub-channels of the first candidate location of one side link slot. The receiving terminal listens to the PSCCH channel on a portion of the sub-channels in the second candidate position of a side link slot. For example, for the second candidate location, the receiving terminal listens to the PSCCH channel only on even numbered sub-channels of the identity (index).

Alternatively, for the second candidate location, the sub-channel on one slot is divided into two parts, and the receiving terminal determines on which part of the sub-channel to listen to the PSCCH channel according to its own terminal identity (UE ID) modulo 2 result.

Alternatively, outside the COT, the receiving terminal listens to the PSCCH channel on only a portion of the subchannels at two candidate locations of one side link slot.

Alternatively, the receiving terminal listens to the PSCCH channel only on even numbered index subchannels.

Alternatively, the sub-channel on one slot is divided into two parts, and the receiving terminal determines on which part of the sub-channel to monitor the PSCCH channel according to its UE ID modulo 2 result. For example, the identification (index) of the mapped sub-channel satisfies the following condition:

subchannel index module 2 = Destination UE ID module 2。

wherein Destination UE ID is the identity of the receiving terminal.

Alternatively, the sub-channel on one time slot is divided into two parts, and the receiving terminal determines to monitor the PSCCH channel on part of the sub-channel according to its UE ID and the UE ID of the transmitting terminal. For example, the identification (index) of the mapped sub-channel satisfies the following condition:

subchannel index module 2 = (Source UE ID+Destination UE ID) module 2。

the Source UE ID is an identity of the transmitting terminal, and Destination UE ID is an identity of the receiving terminal.

Specifically, as shown in fig. 9, the transmitting terminal may attempt to transmit a PSCCH channel on each sub-channel of the first candidate location of each side-channel slot, except for the COT, and if LBT fails at the first candidate location, attempt to transmit a PSCCH channel on each sub-channel of the second candidate location.

Alternatively, outside the COT, when the blind solution PSCCH of the receiving terminal in the side link slot exceeds its blind solution budget, the receiving terminal listens to the PSCCH channel on all sub-channels of the first candidate location of one side link slot. The receiving terminal listens to the PSCCH channel on a portion of the sub-channels in the second candidate position of a side link slot.

Optionally, the receiving terminal discards the PSCCH on the listening part subchannel according to the size of the subchannel index according to its own blind solution capability. For example, the receiving terminal may forego listening to the PSCCH from the subchannel with the largest subchannel index until the PSCCH on the remaining subchannels does not exceed the blind solution budget of the receiving terminal.

Optionally, outside the COT, when the blind solution PSCCH of the receiving terminal in the side link time slot exceeds its blind solution budget, the receiving terminal discards PSCCH listening opportunities on part of the sub-channels according to its blind solution capability until the sum of PSCCH listening opportunities does not exceed its blind solution budget.

Alternatively, the discard rule is time-domain-first-then-frequency-domain, i.e. the receiving terminal discards the PSCCH listening channel in the time domain starting from the second candidate position and the receiving terminal discards the PSCCH listening channel in the frequency domain starting from the subchannel with the largest subchannel index.

Alternatively, the receiving terminal first discards listening to the PSCCH channel from the second candidate location, and in the second candidate location, first discards listening to the PSCCH channel from the subchannel with the largest subchannel index, then discards listening to the PSCCH channel on the second largest subchannel index, and so on, until the PSCCH on the remaining subchannels is not exceeded the blind solution budget of the receiving terminal.

Alternatively, if the receiving terminal gives up to the PSCCH listening opportunity on all sub-channels of the second candidate location, but still exceeds its blind solution budget, the receiving terminal gives up to listening to the PSCCH channel from the first candidate location, and in the first candidate location, gives up to listening to the PSCCH from the sub-channel with the largest sub-channel index, then gives up to listening to the PSCCH channel on the sub-channel with the second largest sub-channel index, and so on, until listening to the PSCCH on the remaining sub-channels does not exceed the blind solution budget of the receiving terminal.

Specifically, as shown in fig. 10 and 11, alternatively, the transmitting terminal may transmit the PSCCH channel in a portion of the subchannels at two candidate locations of each side link slot, outside of the COT.

Alternatively, the sub-channel on one slot is divided into two parts outside the COT, and the transmitting terminal determines on which part of the sub-channel the PSCCH channel is transmitted according to the result of UE ID modulo 2 of the receiving terminal.

Alternatively, the transmitting terminal may transmit the PSCCH channel on all sub-channels of the first candidate location of a side link slot, outside of the COT. The transmitting terminal transmits the PSCCH channel on a portion of the sub-channels in the second candidate position of a side link slot.

Alternatively, for the second candidate position, the transmitting terminal transmits the PSCCH channel only on subchannels whose index is even. The PSCCH channel may be transmitted on a portion of the subchannels at two candidate locations of each side link slot.

Alternatively, for the second candidate location, the transmitting terminal determines on which part of the subchannels the PSCCH channel is transmitted based on the result of UE ID modulo 2 of the target receiving terminal. For example, the identification (index) of the mapped sub-channel satisfies the following condition:

subchannel index module 2 = Destination UE ID module 2。

wherein Destination UE ID is the identity of the receiving terminal.

Alternatively, for the second candidate location, the transmitting terminal determines to listen to the PSCCH channel on a portion of the sub-channel based on its UE ID and the UE ID of the target receiving terminal. For example, the identification (index) of the mapped sub-channel satisfies the following condition:

subchannel index module 2 = (Source UE ID+Destination UE ID) module 2。

Alternatively, within the COT, the transmitting terminal may transmit the PSCCH channel on a portion of the subchannels of the first candidate location of each side-link slot.

When the PSCCH candidate location is greater than the maximum blind solution capability of the terminal, the transmitting terminal selects to transmit the PSCCH channel on a portion of the sub-channels.

Alternatively, it may be indicated by higher layer signaling on which sub-channels the PSCCH channel is transmitted.

By the technical scheme, the sending terminal sends the control channel, the receiving terminal monitors the first control channel according to the receiving result of the channel occupation time information, and in one channel occupation time, the receiving terminal only uses one candidate starting position on one side link time slot, so that PSCCH blind solution complexity of the receiving terminal is reduced, continuous transmission is ensured, and frequency spectrum efficiency is improved.

The embodiment of the application also provides a monitoring device, which is built in or is a terminal device, and comprises:

receiving channel occupation time information;

no channel occupation time information is received.

Optionally, the listening module is further configured to perform at least one of the following if channel occupation time information is received:

Optionally, the listening module is further configured to perform at least one of the following if no channel occupation time information is received:

and monitoring a first control channel according to the first information.

Optionally, the first information includes at least one of:

the second control channel, a demodulation reference signal of the second control channel, a candidate location of the first control channel.

Optionally, the apparatus further comprises at least one of:

By the technical scheme of the embodiment, PSCCH blind solution complexity of the receiving terminal can be reduced, continuous transmission is ensured, and spectrum efficiency is improved.

and the sending module is used for sending the control channel and/or the data channel so that the receiving terminal monitors the first control channel according to the receiving result of the channel occupation time information.

Optionally, the control channel and/or the data channel comprises at least one of:

control channels and/or data channels carrying time information, a first control channel, a second control channel.

Optionally, the apparatus further comprises at least one of:

and monitoring a first control channel according to the first information.

Optionally, the first information includes at least one of:

a second control channel;

demodulation reference signals of a second control channel;

candidate locations for the first control channel.

The embodiment of the application also provides a communication system which comprises at least one sending terminal and at least one receiving terminal.

The embodiment of the application also provides a communication device, which comprises: a memory, a processor, and a snoop program stored on the memory and executable on the processor, which when executed by the processor implements the snoop method as described in any of the embodiments above.

The embodiment of the application further provides a storage medium, on which a computer program is stored, which when executed by a processor implements the listening method according to any one of the embodiments above.

The embodiments of the communication device and the storage medium provided in the embodiments of the present application may include all the technical features of any one of the embodiments of the foregoing listening method, and the expansion and explanation contents of the description are substantially the same as those of each embodiment of the foregoing method, which are not repeated herein.

The present embodiments also provide a computer program product comprising computer program code which, when run on a computer, causes the computer to perform the method in the various possible implementations as above.

The embodiments also provide a chip including a memory for storing a computer program and a processor for calling and running the computer program from the memory, so that a device on which the chip is mounted performs the method in the above possible embodiments.

It can be understood that the above scenario is merely an example, and does not constitute a limitation on the application scenario of the technical solution provided in the embodiments of the present application, and the technical solution of the present application may also be applied to other scenarios. For example, as one of ordinary skill in the art can know, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The units in the device of the embodiment of the application can be combined, divided and pruned according to actual needs.

In this application, the same or similar term concept, technical solution, and/or application scenario description will generally be described in detail only when first appearing, and when repeated later, for brevity, will not generally be repeated, and when understanding the content of the technical solution of the present application, etc., reference may be made to the previous related detailed description thereof for the same or similar term concept, technical solution, and/or application scenario description, etc., which are not described in detail later.

In this application, the descriptions of the embodiments are focused on, and the details or descriptions of one embodiment may be found in the related descriptions of other embodiments.

The technical features of the technical solutions of the present application may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the present application.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as above, including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.) to perform the method of each embodiment of the present application.

In the above embodiments, it may be implemented in whole or in part by 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 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 network of computers, or other programmable devices. The computer instructions may be stored in a storage medium or transmitted from one storage medium to another storage medium, for example, 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), or wireless (e.g., infrared, wireless, microwave, etc.) means. The storage media may be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that contains an integration of one or more available media. Usable media may be magnetic media (e.g., floppy disks, storage disks, magnetic tape), optical media (e.g., DVD), or semiconductor media (e.g., solid State Disk (SSD)), among others.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims

1. A method of listening comprising the steps of:

s20: monitoring a first control channel according to the receiving result of the channel occupation time information;

the step S20 includes:

2. The method of claim 1, wherein the result of the receiving of the channel occupancy time information comprises at least one of:

receiving channel occupation time information;

No channel occupation time information is received.

3. The method of claim 1, wherein the step S20 comprises:

and monitoring a first control channel according to the first information.

4. The method of claim 3, wherein the first information comprises at least one of:

a second control channel;

demodulation reference signals of a second control channel;

candidate locations for the first control channel.

5. The method of claim 4, wherein listening to the first control channel based on the first information comprises at least one of:

6. The method of claim 5, wherein listening to the first control channel based on the first information further comprises at least one of:

7. The method of claim 6, wherein relinquishing the rule of listening to the first control channel on the partial subchannel comprises at least one of:

8. The method of any one of claims 5 to 7, further comprising at least one of:

9. A method of listening comprising the steps of:

s10: transmitting a control channel and/or a data channel so that a receiving terminal monitors a first control channel according to a receiving result of the channel occupation time information;

the transmission control channel and/or data channel comprises at least one of the following:

10. The method of claim 9, wherein the control channel and/or data channel comprises at least one of:

a first control channel;

and a second control channel.

11. The method of claim 10, wherein transmitting the first control channel at each candidate location of the sidelink slot comprises at least one of:

12. The method of claim 11, further comprising at least one of:

13. The method according to any one of claims 9 to 12, wherein the receiving terminal listens to the first control channel according to the reception result of the channel occupation time information, comprising at least one of:

and monitoring a first control channel according to the first information.

14. The method of claim 13, wherein the first information comprises at least one of:

A second control channel;

demodulation reference signals of a second control channel;

candidate locations for the first control channel.

15. The method of claim 14, wherein the receiving terminal listens to the first control channel based on the first information, comprising at least one of:

16. A communication device, comprising: a memory, a processor, the memory having stored thereon a listener, the listener when executed by the processor implementing the steps of the listening method as claimed in any one of claims 1 to 15.

17. A storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the listening method as claimed in any one of claims 1 to 15.