Control method, communication device, and computer-readable storage medium

Abstract

By means of the technical solution of the present application, an on-demand synchronization signal block is transmitted on the basis of downlink information, thereby clearly determining a transmission mechanism for the on-demand synchronization signal block, and / or improving the transmission efficiency and / or accuracy of the on-demand synchronization signal block.

Description

Control method, communication device, and computer-readable storage medium Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a control method, a communication device, and a computer-readable storage medium. Background Art

[0002] In existing protocols, the Synchronization Signal Block (SSB) is primarily used by end devices for cell search and synchronization. However, SSB requires constant operation, even during periods of inactivity, which increases base station energy consumption. To address this issue, Release 19 introduces an on-demand SSB, with the core goal of reducing the energy consumption associated with always-on SSB transmission.

[0003] During the process of conceiving and implementing this application, the inventors discovered that there are at least the following problems: the transmission mechanism of the on-demand synchronization signal block is currently unclear, resulting in low transmission efficiency and / or accuracy of the on-demand synchronization signal block.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Technical Solutions

[0005] The main purpose of this application is to provide a control method, communication equipment and computer-readable storage medium, aiming to clarify the transmission mechanism of on-demand synchronization signal blocks.

[0006] To achieve the above objectives, the present application provides a control method that can be applied to a terminal device (such as a mobile phone), comprising the steps of:

[0007] S2: Transmits on-demand synchronization signal blocks based on downlink information.

[0008] Optionally, the downlink information includes at least one of a radio resource control message, a media access control information element, and downlink control information.

[0009] Optionally, the method further comprises at least one of the following:

[0010] Optionally, the radio resource control message includes at least one of a secondary cell index, a subcarrier spacing of an on-demand synchronization signal block, a frequency of an on-demand synchronization signal block, a frequency domain offset of an on-demand synchronization signal block, a transmission power of an on-demand synchronization signal block, a time domain offset of an on-demand synchronization signal block, a secondary cell activation indication, an on-demand synchronization signal block index in a synchronization signal block burst set, a period of an on-demand synchronization signal block, an on-demand synchronization signal block activation indication, a maximum number of transmissions N of an on-demand synchronization signal block, and an on-demand synchronization signal block deactivation timer;

[0011] The media access control information element includes at least one of a secondary cell activation and / or deactivation indication, an on-demand synchronization signal block activation and / or deactivation indication, a tracking reference signal indication, a time domain offset of the on-demand synchronization signal block, and an on-demand synchronization signal block index in a synchronization signal block burst set;

[0012] The downlink control information includes at least one of the period of the on-demand synchronization signal block, the activation and / or deactivation indication of the on-demand synchronization signal block, the secondary cell index, the on-demand synchronization signal block index in the synchronization signal block burst set, and the time domain offset of the on-demand synchronization signal block.

[0013] Optionally, step S2 includes at least one of the following:

[0014] In response to receiving downlink information including an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, starting to transmit an on-demand synchronization signal block at a first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment;

[0015] After starting to transmit the on-demand synchronization signal block, transmit the on-demand synchronization signal block using the frequency domain position of the on-demand synchronization signal block determined based on the downlink information, and / or periodically transmit the on-demand synchronization signal block based on the period of the on-demand synchronization signal block in the downlink information;

[0016] In response to the first condition being met, transmission of the on-demand synchronization signal block is stopped.

[0017] Optionally, the method further comprises at least one of the following:

[0018] The value of T is related to the delay of the radio resource control process;

[0019] The value of T is related to the first time;

[0020] The value of T is related to the status of the secondary cell;

[0021] The value of T is related to the subcarrier spacing of the physical uplink control channel;

[0022] The value of T is an integer greater than or equal to 0;

[0023] The first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information;

[0024] The first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; the deactivation timer of the on-demand synchronization signal block times out; a media access control information element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

[0025] Optionally, the method further comprises at least one of the following:

[0026] The first time is the time from receiving the physical downlink shared channel carrying the radio resource control message to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation;

[0027] The first time is the time from receiving the physical downlink shared channel carrying the media access control information element to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation;

[0028] The secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

[0029] Optionally, the method further comprises at least one of the following:

[0030] Transmitting an on-demand synchronization signal block based on a radio resource control message, applicable to the first configuration phase and / or the second configuration phase of the secondary cell;

[0031] Transmitting an on-demand synchronization signal block based on a media access control information element, applicable to the first configuration phase and / or the second configuration phase of the secondary cell;

[0032] Controlling the transmission of synchronization signal blocks based on downlink control information is applicable to the first configuration stage and / or the third configuration stage of the secondary cell.

[0033] Optionally, the method further comprises at least one of the following:

[0034] The first configuration stage includes: the secondary cell is configured for the terminal device and before the terminal device receives the secondary cell activation command;

[0035] The second configuration phase includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed;

[0036] The third configuration stage includes at least one of the following: after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0037] The present application also provides a control method, which can be applied to a network device (such as a base station), comprising the steps of:

[0038] S1: Send downlink information so that the terminal device can transmit on-demand synchronization signal blocks based on the downlink information.

[0039] Optionally, the downlink information includes at least one of a radio resource control message, a media access control information element, and downlink control information.

[0040] Optionally, the method further comprises at least one of the following:

[0041] Optionally, the radio resource control message includes at least one of a secondary cell index, a subcarrier spacing of an on-demand synchronization signal block, a frequency of an on-demand synchronization signal block, a frequency domain offset of an on-demand synchronization signal block, a transmission power of an on-demand synchronization signal block, a time domain offset of an on-demand synchronization signal block, a secondary cell activation indication, an on-demand synchronization signal block index in a synchronization signal block burst set, a period of an on-demand synchronization signal block, an on-demand synchronization signal block activation indication, a maximum number of transmissions N of an on-demand synchronization signal block, and an on-demand synchronization signal block deactivation timer;

[0042] The media access control information element includes at least one of a secondary cell activation and / or deactivation indication, an on-demand synchronization signal block activation and / or deactivation indication, a tracking reference signal indication, a time domain offset of the on-demand synchronization signal block, and an on-demand synchronization signal block index in a synchronization signal block burst set;

[0043] The downlink control information includes at least one of the period of the on-demand synchronization signal block, the activation and / or deactivation indication of the on-demand synchronization signal block, the secondary cell index, the on-demand synchronization signal block index in the synchronization signal block burst set, and the time domain offset of the on-demand synchronization signal block.

[0044] Optionally, the terminal device transmits an on-demand synchronization signal block based on the downlink information, including at least one of the following:

[0045] In response to receiving downlink information including an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, the terminal device starts transmitting the on-demand synchronization signal block at a first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment;

[0046] After starting to transmit the on-demand synchronization signal block, the terminal device transmits the on-demand synchronization signal block using the frequency domain position of the on-demand synchronization signal block determined based on the downlink information, and / or periodically transmits the on-demand synchronization signal block based on the period of the on-demand synchronization signal block in the downlink information;

[0047] The terminal device stops transmitting the on-demand synchronization signal block in response to the first condition being met.

[0048] Optionally, the method further comprises at least one of the following:

[0049] The value of T is related to the delay of the radio resource control process;

[0050] The value of T is related to the first time;

[0051] The value of T is related to the status of the secondary cell;

[0052] The value of T is related to the subcarrier spacing of the physical uplink control channel;

[0053] The value of T is an integer greater than or equal to 0;

[0054] The first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information;

[0055] The first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; the deactivation timer of the on-demand synchronization signal block times out; a media access control information element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

[0056] Optionally, the method further comprises at least one of the following:

[0057] The first time is the time from receiving the physical downlink shared channel carrying the radio resource control message to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation;

[0058] The first time is the time from receiving the physical downlink shared channel carrying the media access control information element to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation;

[0059] The secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

[0060] Optionally, the method further comprises at least one of the following:

[0061] Transmitting an on-demand synchronization signal block based on a radio resource control message, applicable to the first configuration phase and / or the second configuration phase of the secondary cell;

[0062] Transmitting an on-demand synchronization signal block based on a media access control information element, applicable to the first configuration phase and / or the second configuration phase of the secondary cell;

[0063] Controlling the transmission of synchronization signal blocks based on downlink control information is applicable to the first configuration stage and / or the third configuration stage of the secondary cell.

[0064] Optionally, the method further comprises at least one of the following:

[0065] The first configuration stage includes: the secondary cell is configured for the terminal device and before the terminal device receives the secondary cell activation command;

[0066] The second configuration phase includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed;

[0067] The third configuration stage includes at least one of the following: after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0068] The present application also provides a communication device, comprising: a memory, a processor, and a control program stored in the memory and executable on the processor, wherein the control program implements the steps of any of the control methods described above when executed by the processor.

[0069] The communication device in this application can be a terminal device (such as a mobile phone) or a network device (such as a base station). The specific reference needs to be clarified based on the context.

[0070] The present application also provides a computer-readable storage medium, on which a control program is stored. When the control program is executed by a processor, the steps of any of the control methods described above are implemented.

[0071] The technical solution of the present application is based on the on-demand synchronization signal block transmitted based on downlink information, clarifies the transmission mechanism of the on-demand synchronization signal block, and / or improves the transmission efficiency and / or accuracy of the on-demand synchronization signal block. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0073] FIG1 is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application;

[0074] FIG2 is a diagram of a communication network system architecture provided by an embodiment of the present application;

[0075] FIG3 is a schematic diagram of the hardware structure of a controller 140 provided in this application;

[0076] FIG4 is a schematic diagram of the hardware structure of a network node 150 provided in this application;

[0077] FIG5 is a schematic flow chart of a control method according to the first embodiment;

[0078] FIG6 is a schematic flow chart of a control method according to a second embodiment;

[0079] FIG7 is a schematic diagram showing the start of transmission of a synchronization signal block according to a second embodiment;

[0080] FIG8 is a schematic diagram showing frequency domain positions of synchronization signal blocks according to a third embodiment;

[0081] FIG9 is a schematic diagram of synchronization signal block transmission according to a third embodiment;

[0082] FIG10 is a schematic diagram showing the start of transmission of a synchronization signal block according to a fourth embodiment;

[0083] FIG11 is a schematic flow chart of a control method according to a sixth embodiment;

[0084] FIG12 is a schematic diagram of an interaction sequence according to a seventh embodiment;

[0085] FIG13 is a first structural diagram of a control device provided in an embodiment of the present application;

[0086] FIG14 is a second structural diagram of a control device provided in an embodiment of the present application;

[0087] FIG15 is a schematic diagram of the structure of the communication device provided in an embodiment of the present application.

[0088] The purpose of this application, its features, and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and the accompanying text are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of this application to those skilled in the art by reference to specific embodiments.

[0089] Implementation Methods of the Application

[0090] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0091] It should be noted that, in this document, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element, and / or, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0092] It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the term "if," as used herein, may be interpreted as "upon," "when," or "in response to a determination." 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 should be further understood that the terms "comprising" and "including" indicate the presence of the recited features, steps, operations, elements, components, items, types, and / or groups, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used herein, may be interpreted as inclusive, meaning any one or any combination. For example, “comprising at least one of the following: A, B, C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”; and for another example, “A, B or C” or “A, B and / or C” means “any of the following: A; B; C; 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 inherently mutually exclusive in some manner.

[0093] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless clearly stated herein, the execution of these steps is not strictly limited in order, and they can be performed in other orders. Moreover, at least a portion of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0094] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0095] It should be noted that in this article, step codes such as S1 and S2 are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial restriction on the order. When implementing the step, those skilled in the art may execute S2 first and then S1, etc., but these should all be within the scope of protection of this application.

[0096] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0097] In the subsequent description, the use of suffixes such as "module", "component" or "unit" to represent elements is only for the purpose of facilitating the description of the present application and has no specific meaning. Therefore, "module", "component" or "unit" can be used interchangeably.

[0098] The communication device in this application can be a terminal device (such as a mobile phone) or a network device (such as a base station). The specific reference needs to be clarified based on the context.

[0099] The terminal device may be implemented in various forms. For example, the terminal device described in this application may include intelligent terminal devices such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, and other fixed terminal devices such as digital TVs and desktop computers.

[0100] The subsequent description will be made using a mobile terminal as an example. Those skilled in the art will understand that, in addition to components specifically used for mobile purposes, the configuration according to the embodiments of the present application can also be applied to fixed-type terminal devices.

[0101] Please refer to Figure 1, which is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application. The mobile terminal 100 may include components such as 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 understand that the mobile terminal structure shown in Figure 1 does not limit the mobile terminal. The mobile terminal may include more or fewer components than shown, or may combine certain components, or arrange the components differently.

[0102] The following is a detailed introduction to the various components of the mobile terminal in conjunction with Figure 1:

[0103] The RF unit 101 can be used to send and receive information or receive signals during calls. Specifically, it receives downlink information from the base station and transmits it to the processor 110 for processing. It also transmits uplink data to the base station. Typically, the RF 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 / or other components. Furthermore, the RF unit 101 can communicate with the network and other devices via wireless communication. The above-mentioned wireless communications can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G and 6G, etc.

[0104] WiFi is a short-range wireless transmission technology. A mobile terminal, through WiFi module 102, enables users to send and receive emails, browse web pages, and access streaming media, providing wireless broadband Internet access. Although FIG1 illustrates WiFi module 102, it is understood that it is not a required component of the mobile terminal and can be omitted as needed without altering the essence of the invention.

[0105] The audio output unit 103 can convert audio data received by the RF unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it 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. Furthermore, the audio output unit 103 can also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, or the like.

[0106] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes image data of still images or videos captured by an image capture device (e.g., a camera) in video capture mode or image capture mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the GPU 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the RF unit 101 or the WiFi module 102. The microphone 1042 may receive sound (audio data) in operating modes such as a phone call mode, a recording mode, and a voice recognition mode, and may process such sound into audio data. In the phone call mode, the processed audio (voice) data may be converted into a format that can be transmitted to a mobile communication base station via the RF unit 101. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated during the reception and transmission of audio signals.

[0107] 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 can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that recognize the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that can be configured in the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be described here.

[0108] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0109] The user input unit 107 can be used to receive input digital or character information and generate key signal input related to user settings and function control of the mobile terminal. Optionally, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect user touch operations on or near it (such as operations performed by the user using a finger, stylus, or any other suitable object or accessory on or near the touch panel 1071) and drive corresponding connected devices according to a pre-set program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch direction and detects the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device and converts it into touch point coordinates, which are then sent to the processor 110. It can also receive and execute commands sent by the processor 110. And / or, the touch panel 1071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072. Optionally, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power keys, etc.), a trackball, a mouse, a joystick, etc., and the specifics are not limited here.

[0110] Optionally, the touch panel 1071 may overlay the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. The processor 110 then provides a corresponding visual output on the display panel 1061 based on the type of touch event. Although in FIG1 , the touch panel 1071 and the display panel 1061 are shown as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited to this specific embodiment.

[0111] The interface unit 108 serves as an interface through which at least one external device can be connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. 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.

[0112] Memory 109 can be used to store software programs and various data. Memory 109 may primarily include a program storage area and a data storage area. Optionally, the program storage area may store an operating system and at least one application required for a function (such as a sound playback function or an image playback function); the data storage area may store data generated based on the use of the mobile phone (such as audio data, a phone book, etc.). Furthermore, / or, memory 109 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0113] Processor 110 is the control center of the mobile terminal, connecting all components of the mobile terminal using various interfaces and circuits. By running or executing software programs and / or modules stored in memory 109 and accessing data stored in memory 109, it executes various functions of the mobile terminal and processes data, thereby providing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, processor 110 may integrate an application processor and a modem processor. Optionally, the application processor primarily handles the operating system, user interface, and application programs, while the modem processor primarily handles wireless communications. It is understood that the modem processor may not be integrated into processor 110.

[0114] The mobile terminal 100 may also include a power supply 111 (such as a battery) for supplying power to various components. Preferably, the power supply 111 may be logically connected to the processor 110 through a power management system, thereby managing functions such as charging, discharging, and power consumption through the power management system.

[0115] Although not shown in FIG. 1 , the mobile terminal 100 may further include a Bluetooth module, etc., which will not be described in detail here.

[0116] To facilitate understanding of the embodiments of the present application, the communication network system on which the mobile terminal of the present application is based is described below.

[0117] Please refer to Figure 2, which is a communication network system architecture diagram provided in an embodiment of the present application. The communication network system is an NR (New Radio) system of universal mobile communication technology. The NR system includes a terminal device (User Equipment, UE) 201, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, EPC (Evolved Packet Core) 203 and the operator's IP service 204 that are connected in sequence.

[0118] Optionally, UE201 may be the above-mentioned terminal device 100, which will not be described in detail here.

[0119] E-UTRAN 202 includes eNodeB 2021 and other eNodeBs 2022 . Optionally, eNodeB 2021 may be connected to other eNodeBs 2022 via a backhaul (eg, an X2 interface). eNodeB 2021 is connected to EPC 203 , and eNodeB 2021 may provide access from UE 201 to EPC 203 .

[0120] EPC 203 may include MME (Mobility Management Entity) 2031, HSS (Home Subscriber Server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, PGW (PDN Gate Way) 2035, and PCRF (Policy and Charging Rules Function) 2036. MME 2031 is the control node that processes signaling between UE 201 and EPC 203, providing bearer and connection management. HSS 2032 provides registers for managing functions such as the Home Location Register (not shown) and stores user-specific information such as service features and data rates. All user data can be sent through SGW2034, PGW2035 can provide IP address allocation and other functions for UE 201, PCRF2036 is the policy and charging control policy decision point for service data flow and IP bearer resources, and it selects and provides available policy and charging control decisions for the policy and charging execution function unit (not shown in the figure).

[0121] The IP service 204 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem), or other IP services.

[0122] Although the above introduction takes the LTE system as an example, those skilled in the art should know that this application is not only applicable to the LTE system, but can also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G and future new network systems (such as 6G), etc., which are not limited here.

[0123] FIG3 is a schematic diagram of the hardware structure of a controller 140 provided in this application. The controller 140 includes a memory 1401 and a processor 1402. The memory 1401 is used to store program instructions, and the processor 1402 is used to call the program instructions in the memory 1401 to execute the steps performed by the controller in the first embodiment of the above method. The implementation principles and beneficial effects are similar and will not be repeated here.

[0124] Optionally, the controller further includes a communication interface 1403, which can be connected to the processor 1402 via a bus 1404. The processor 1402 can control the communication interface 1403 to implement the receiving and sending functions of the controller 140.

[0125] Figure 4 is a schematic diagram of the hardware structure of a network node 150 provided in this application. Network node 150 includes: a memory 1501 and a processor 1502. Memory 1501 is used to store program instructions, and processor 1502 is used to call the program instructions in memory 1501 to execute the steps performed by the first node in the first embodiment of the above method. The implementation principles and beneficial effects are similar and will not be repeated here.

[0126] Optionally, the controller further includes a communication interface 1503, which can be connected to the processor 1502 via a bus 1504. The processor 1502 can control the communication interface 1503 to implement the receiving and sending functions of the network node 150.

[0127] The integrated modules implemented in the form of software function modules can be stored in a computer-readable storage medium. The software function modules stored in a storage medium include a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute some of the steps of the methods of various embodiments of the present application.

[0128] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can 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 process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a storage medium or transmitted from one storage medium to another storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive solid state disk, SSD), etc.

[0129] Based on the above-mentioned mobile terminal hardware structure and communication network system, various embodiments of the present application are proposed.

[0130] First embodiment

[0131] 5 , which is a flow chart of a control method according to a first embodiment, the control method of the present application embodiment can be applied to a terminal device (such as a mobile phone), including the following steps:

[0132] S2: Transmits on-demand synchronization signal blocks based on downlink information.

[0133] Optionally, the downlink information includes at least one of a Radio Resource Control (RRC) message, a Media Access Control Control Element (MAC CE), and Downlink Control Information (DCI).

[0134] Optionally, the downlink information also includes at least one of the secondary cell index, the subcarrier spacing of the on-demand synchronization signal block, the frequency of the on-demand synchronization signal block, the frequency domain offset of the on-demand synchronization signal block, the transmission power of the on-demand synchronization signal block, the time domain offset of the on-demand synchronization signal block, the secondary cell activation indication, the secondary cell activation and / or deactivation indication, the on-demand synchronization signal block index in the synchronization signal block burst set, the period of the on-demand synchronization signal block, the on-demand synchronization signal block activation indication, the on-demand synchronization signal block activation and / or deactivation indication, the maximum number of transmissions N of the on-demand synchronization signal block, and the on-demand synchronization signal block deactivation timer.

[0135] Optionally, the wireless resource control message includes at least one of the secondary cell index, the subcarrier spacing of the on-demand synchronization signal block, the frequency of the on-demand synchronization signal block, the frequency domain offset of the on-demand synchronization signal block, the transmission power of the on-demand synchronization signal block, the time domain offset of the on-demand synchronization signal block, the secondary cell activation indication, the on-demand synchronization signal block index in the synchronization signal block burst set, the period of the on-demand synchronization signal block, the on-demand synchronization signal block activation indication, the maximum number of transmissions N of the on-demand synchronization signal block, and the on-demand synchronization signal block deactivation timer.

[0136] Optionally, the media access control information element includes at least one of a secondary cell activation and / or deactivation indication, an on-demand synchronization signal block activation and / or deactivation indication, a tracking reference signal indication, a time domain offset of the on-demand synchronization signal block, and an on-demand synchronization signal block index in the synchronization signal block burst set.

[0137] Optionally, the downlink control information includes at least one of the period of the on-demand synchronization signal block, the activation and / or deactivation indication of the on-demand synchronization signal block, the secondary cell index, the on-demand synchronization signal block index in the synchronization signal block burst set, and the time domain offset of the on-demand synchronization signal block.

[0138] Optionally, transmitting an on-demand synchronization signal block based on a radio resource control message is applicable to the first configuration phase and / or the second configuration phase of the secondary cell.

[0139] Optionally, transmitting an on-demand synchronization signal block based on a medium access control information element is applicable to the first configuration stage and / or the second configuration stage of the secondary cell.

[0140] Optionally, controlling the transmission of synchronization signal blocks based on downlink control information is applicable to the first configuration stage and / or the third configuration stage of the secondary cell.

[0141] Optionally, the first configuration stage includes: the secondary cell is configured to the terminal device and before the terminal device receives a secondary cell activation command.

[0142] Optionally, the second configuration stage includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0143] Optionally, the third configuration stage includes at least one of the following: after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0144] Through the technical solution of this embodiment, the on-demand synchronization signal block is transmitted based on the downlink information, the configuration information that needs to be obtained from the downlink information when the on-demand synchronization signal block is transmitted, and the secondary cell stage mechanism applicable to the on-demand synchronization signal block transmitted based on different downlink information is clarified, thereby clarifying the signaling mechanism required for the on-demand synchronization signal block transmission, and / or thereby improving the transmission efficiency and / or accuracy of the on-demand synchronization signal block.

[0145] Second embodiment

[0146] 6 , which is a flow chart of a control method according to a second embodiment, based on the first embodiment of the present application, this embodiment further discloses step S2, which includes at least one of step S21, step S22, and step S23:

[0147] S21: In response to receiving downlink information including an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, starting to transmit an on-demand synchronization signal block at a first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment;

[0148] S22: After starting to transmit the on-demand synchronization signal block, transmit the on-demand synchronization signal block using the frequency domain position of the on-demand synchronization signal block determined based on the downlink information, and / or periodically transmit the on-demand synchronization signal block based on the period of the on-demand synchronization signal block in the downlink information;

[0149] S23: In response to the first condition being met, stop transmitting the on-demand synchronization signal block.

[0150] Optionally, the first moment is the time slot number or symbol number at which the terminal device receives downlink information containing an on-demand synchronization signal block activation and / or deactivation indication.

[0151] Optionally, the first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information.

[0152] Optionally, the value of T is related to the delay of the radio resource control process.

[0153] Optionally, the value of T is related to the first time.

[0154] Optionally, the value of T is related to the state of the secondary cell.

[0155] Optionally, the value of T is related to the subcarrier spacing of the physical uplink control channel.

[0156] Optionally, the value of T is an integer greater than or equal to 0.

[0157] Optionally, the first time is the time from receiving a physical downlink shared channel carrying a radio resource control message to sending a physical uplink control channel carrying a corresponding hybrid automatic repeat request confirmation.

[0158] Optionally, the first time is the time from receiving a physical downlink shared channel carrying a media access control information element to sending a physical uplink control channel carrying a corresponding hybrid automatic repeat request confirmation.

[0159] Optionally, the secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

[0160] Optionally, if the secondary cell in FR1 meets the second condition, the secondary cell is called known.

[0161] Optionally, the second condition is:

[0162] Before receiving the secondary cell activation command, the terminal device sends a valid measurement report for the activated secondary cell within a period equal to max(5*secondary cell measurement period, 5*discontinuous reception period), and the SSB measured by the terminal device is still detectable according to the cell identification conditions specified in 38.133; and during the secondary cell activation delay, the SSB measured by the terminal device also remains detectable according to the cell identification conditions specified in 38.133 within a period equal to max(5*secondary cell measurement period, 5*discontinuous reception period).

[0163] Optionally, if the secondary cell in FR1 does not meet the second condition, the secondary cell is called unknown.

[0164] Optionally, if the secondary cell in FR2 meets the third condition, the secondary cell is called known.

[0165] Optionally, the third condition is: before the terminal device receives the last activation command of the physical downlink control channel (PDCCH) transmission configuration indication (TCI), the physical downlink shared channel (PDSCH) TCI (when applicable) and the semi-static channel state information reference signal (Channel-State Information Reference Measurement, CSI-RS) for the channel quality indication (CQI) report (when applicable), and within a 4-second period for terminal devices supporting power level 1 / 5 or a 3-second period for terminal devices supporting power level 2 / 3 / 4, the terminal device has sent a valid layer 3 reference signal received power (Layer 3-Reference Signal Received Power, L3-RSRP) measurement report with an on-demand synchronization signal block index, and the terminal device receives the medium access control element (Medium Access Control control element) activating TCI no later than after sending the L3-RSRP report. element, MAC-CE) at the time when the secondary cell activation command is received; and from the L3-RSRP reporting to the valid CQI reporting period, the SSB of the reported valid index can still be detected according to the cell identification conditions specified in 38.133, and the TCI state is selected based on one of the most recently reported on-demand synchronization signal block indices.

[0166] Optionally, if the secondary cell in FR2 does not meet the third condition, the secondary cell is called unknown.

[0167] Optionally, the value range of the secondary cell measurement period (measCycleScell) is {sf160, sf256, sf320, sf512, sf640, sf1024, sf1280}, where sf160 corresponds to 160 subframes, sf256 corresponds to 256 subframes, and so on.

[0168] Optionally, the value range of the discontinuous reception cycle (DRX Cycle) is {ms10, ms20, ms32, ms40ms60, ms64, ms70, ms80, ms128, ms160, ms256, ms320, ms512, ms640, ms1024, ms1280, ms2048, ms2560, ms5120, ms10240}, where ms10 corresponds to 10ms, ms20 corresponds to 20ms, and so on.

[0169] Optionally, the value range of the discontinuous reception cycle (DRX Cycle) is {ms2, ms3, ms4, ms5, ms6, ms7, ms8, ms10, ms14, ms16, ms20, ms30, ms32, ms35, ms40, ms64, ms80, ms128, ms160, ms256, ms320, ms512, ms640}, where ms2 corresponds to 2ms, ms3 corresponds to 3ms, and so on.

[0170] Optionally, the first rule is: the candidate time domain position of the on-demand synchronization signal block within 5 ms satisfies at least one of the following schemes:

[0171] Solution A, 15 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2, 8} + 14·n.

[0172] Optionally, for a carrier frequency less than or equal to 3 GHz, n=0,1.

[0173] Optionally, for a carrier frequency greater than 3 GHz in FR1, n=0, 1, 2, 3.

[0174] Solution B, 30 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {4, 8, 16, 20} + 28·n.

[0175] Optionally, for a carrier frequency less than or equal to 3 GHz, n=0.

[0176] Optionally, for a carrier frequency greater than 3 GHz in FR1, n=0,1.

[0177] Solution C, 30 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2, 8} + 14·n.

[0178] Optionally, for FDD: for a carrier frequency less than or equal to 3 GHz, n=0, 1; for a carrier frequency greater than 3 GHz in FR1, n=0, 1, 2, 3.

[0179] Optionally, for TDD: for a carrier frequency less than 1.88 GHz, n=0, 1; for a carrier frequency greater than or equal to 1.88 GHz in FR1, n=0, 1, 2, 3.

[0180] Solution D, 120kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5ms half-frame is {4, 8, 16, 20} + 28·n.

[0181] Optionally, for carrier frequencies within FR2, n=0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18.

[0182] Scheme E, 240 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {8, 12, 16, 20, 32, 36, 40, 44} + 56·n.

[0183] Optionally, for carrier frequencies within FR2-1, n=0, 1, 2, 3, 5, 6, 7, 8.

[0184] Scheme F, 480 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2,9}+14·n.

[0185] Optionally, for carrier frequencies within FR2-2, n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31.

[0186] Scheme G, 960 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2, 9} + 14·n.

[0187] Optionally, for carrier frequencies within FR2-2, n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31.

[0188] Optionally, the value of T varies depending on the downlink information.

[0189] Referring to FIG. 7 , which is a schematic diagram illustrating the start of transmission of a synchronization signal block according to the second embodiment, assuming that the first moment is the moment when the terminal device receives radio resource control information including an on-demand synchronization signal block activation indication, denoted as time slot n, then T time slots accumulated from the first moment refers to after time slot n+T. Therefore, in response to receiving radio resource control information including an on-demand synchronization signal block activation indication in time slot n, transmission of the on-demand synchronization signal block begins at the first candidate position of the on-demand synchronization signal block after time slot n+T, as shown in FIG. 7 .

[0190] Optionally, if counting is performed in symbols, in response to receiving wireless resource control information including an on-demand synchronization signal block activation indication at symbol n, transmission of the on-demand synchronization signal block begins at the first candidate position of the on-demand synchronization signal block after symbol n+T.

[0191] Optionally, the first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; the deactivation timer of the on-demand synchronization signal block times out; a media access control information element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

[0192] Optionally, assuming that the first condition is met: the terminal device receives a media access control element indicating deactivation of the on-demand synchronization signal block, then step S23 is as shown in Figure 7. After receiving the media access control element indicating deactivation of the on-demand synchronization signal block, the terminal device stops receiving the on-demand synchronization signal block activated by the wireless resource control information.

[0193] Through the technical solution of this embodiment, in response to receiving downlink information containing an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, the on-demand synchronization signal block starts to be transmitted at the first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment; after the on-demand synchronization signal block starts to be transmitted, the on-demand synchronization signal block is transmitted through the frequency domain position of the on-demand synchronization signal block determined based on the downlink information, and / or the on-demand synchronization signal block is periodically transmitted based on the period of the on-demand synchronization signal block in the downlink information; in response to satisfying the first condition, the transmission of the on-demand synchronization signal block is stopped, thereby realizing the control of the transmission process of the on-demand synchronization signal block, clarifying the transmission mechanism of the on-demand synchronization signal block, and / or improving the transmission efficiency and / or accuracy of the on-demand synchronization signal block.

[0194] Third embodiment

[0195] On the basis of any of the foregoing embodiments of the present application, this embodiment further discloses the control method in the foregoing embodiments, and specifically discloses an exemplary scheme for transmitting on-demand synchronization signal blocks based on wireless resource control messages.

[0196] Optionally, the wireless resource control message includes a secondary cell index, a subcarrier spacing of an on-demand synchronization signal block, a frequency of an on-demand synchronization signal block, a frequency domain offset of an on-demand synchronization signal block, a transmission power of an on-demand synchronization signal block, a time domain offset of an on-demand synchronization signal block, a secondary cell activation indication, an on-demand synchronization signal block index in a synchronization signal block burst set, an on-demand synchronization signal block index in a synchronization signal block burst set, a period of an on-demand synchronization signal block, an on-demand synchronization signal block activation indication, a maximum number of transmissions N of an on-demand synchronization signal block, and at least one of an on-demand synchronization signal block deactivation timer.

[0197] Optionally, the secondary cell index is an index of a secondary cell that supports on-demand synchronization signal block transmission.

[0198] Optionally, the on-demand synchronization signal block subcarrier spacing is used to indicate the subcarrier spacing of the on-demand synchronization signal block transmission. Optionally, the configuration value of the on-demand synchronization signal block subcarrier spacing is related to the carrier frequency, for example: when the carrier belongs to FR1, the subcarrier spacing of the on-demand synchronization signal block is 15kHz or 30kHz; when the carrier belongs to FR2-1, the subcarrier spacing of the on-demand synchronization signal block is 120kHz or 240kHz; when the carrier belongs to FR2-2, the subcarrier spacing of the on-demand synchronization signal block is 120kHz, 480kHz, or 960kHz.

[0199] Optionally, the frequency of the on-demand synchronization signal block is used to determine the frequency domain position of the on-demand synchronization signal block.

[0200] Optionally, the frequency value range of the on-demand synchronization signal block is an integer greater than or equal to 0 and less than or equal to 3279165, and meets the definition of ARFCN-ValueNR in 38.101-1, 38.101-2 and 38.101-5.

[0201] Optionally, the frequency domain offset of the on-demand synchronization signal block is used to determine the frequency domain position of the on-demand synchronization signal block.

[0202] Optionally, the frequency domain offset of the on-demand synchronization signal block is the frequency domain offset between the frequency domain position of the on-demand synchronization signal block and the frequency domain position of the always-on synchronization signal block.

[0203] Optionally, the on-demand synchronization signal block and the always-on synchronization signal block are located in the same serving cell.

[0204] Optionally, the frequency domain range of the on-demand synchronization signal block determined based on the frequency domain offset of the on-demand synchronization signal block does not exceed the frequency domain range of the currently activated bandwidth portion.

[0205] Referring to Figure 8, Figure 8 is a schematic diagram of the frequency domain position of the synchronization signal block according to the third embodiment. Assume that the frequency domain offset of the on-demand synchronization signal block is SSB-freoffset, the frequency domain position of the on-demand synchronization signal block is B, and the frequency domain position of the always-online synchronization signal block is A. Then the frequency domain position of the on-demand synchronization signal block is shown in Figure 8, B=A+SSB-freoffset.

[0206] Optionally, the transmission power of the on-demand synchronization signal block ranges from an integer greater than or equal to -60 to less than or equal to 50, and the unit is dBm.

[0207] Optionally, the transmission power of the on-demand synchronization signal blocks may be related to the transmission power of the always-on synchronization signal blocks.

[0208] Optionally, the transmission power of the on-demand synchronization signal blocks is different from the transmission power of the always-on synchronization signal blocks.

[0209] Optionally, the transmission power of the on-demand synchronization signal block is the same as the transmission power of the always-on synchronization signal block.

[0210] Optionally, the transmission power of the on-demand synchronization signal block can be the sum of the first offset value and the transmission power of the always-on synchronization signal block.

[0211] Optionally, the on-demand synchronization signal block and the always-on synchronization signal block are located in the same serving cell.

[0212] Optionally, the time domain offset of the on-demand synchronization signal block is used to determine the time domain position of the on-demand synchronization signal block.

[0213] Optionally, the time domain offset of the on-demand synchronization signal block is the time domain offset between the first burst of the on-demand synchronization signal block and the first always-on synchronization signal block burst sent after the first symbol of the wireless frame 0 of the serving cell.

[0214] Optionally, the time domain offset of the on-demand synchronization signal block ranges from {ms5, ms10, ms15, ms20, ms40, ms80}. Optionally, ms5 represents 5ms, ms10 represents 10ms, and so on.

[0215] Referring to Figure 9 , which is a schematic diagram illustrating synchronization signal block transmission according to the third embodiment, the time domain offset of the on-demand synchronization signal block is assumed to be 5 ms. This means that the first burst of the on-demand synchronization signal block is transmitted 5 ms later than the first burst of the always-on synchronization signal block transmitted after the first symbol of radio frame 0 of the serving cell. Assuming the transmission period of the on-demand synchronization signal block is 10 ms and the transmission period of the always-on synchronization signal block is 40 ms, the transmission method of the always-on synchronization signal block and the on-demand synchronization signal block is shown in Figure 9 .

[0216] Optionally, the time domain position of the on-demand synchronization signal block is determined based on a first rule.

[0217] Optionally, the secondary cell activation indication is used to indicate whether to synchronously activate the secondary cell when the RRC configures the secondary cell; if the secondary cell activation indication field does not exist, the secondary cell is in a deactivated state when the RRC configures the secondary cell.

[0218] Optionally, the on-demand synchronization signal block index in the synchronization signal block burst set is used to determine the number of beams supporting the on-demand synchronization signal block. Optionally, let the on-demand synchronization signal block index field in the synchronization signal block burst set be ssb-PositionsInBurst-R19, and each bit in ssb-PositionsInBurst-R19 represents an on-demand synchronization signal block index, such as the first bit corresponds to on-demand synchronization signal block index 0, the second bit corresponds to on-demand synchronization signal block index 1, and so on. When the Kth bit in ssb-PositionsInBurst-R19 is set to 1, the SSB with on-demand synchronization signal block index K-1 in an on-demand synchronization signal block burst set is transmitted; when the Kth bit in ssb-PositionsInBurst-R19 is set to 0, the SSB with on-demand synchronization signal block index K-1 in an on-demand synchronization signal block burst set is not transmitted.

[0219] Optionally, the period of the on-demand synchronization signal block is used to determine the transmission period of the on-demand synchronization signal block.

[0220] Optionally, the period of the on-demand synchronization signal block may range from {ms5, ms10, ms20, ms40, ms80, ms160}. Optionally, ms5 is 5 ms, ms10 is 10 ms, and so on.

[0221] Optionally, the on-demand synchronization signal block activation indication is used to notify the terminal device of the transmission of the on-demand synchronization signal block. Once the terminal device receives the on-demand synchronization signal block activation indication, it can start receiving the on-demand synchronization signal block.

[0222] Optionally, the maximum number of transmissions N of the on-demand synchronization signal block is used to determine the maximum number of times the terminal device starts to receive the on-demand synchronization signal block after receiving the on-demand synchronization signal block activation indication.

[0223] Optionally, the on-demand synchronization signal block deactivation timer is used to specify the duration during which the terminal device can start receiving the on-demand synchronization signal block after receiving the on-demand synchronization signal block activation indication. Once the on-demand synchronization signal block deactivation timer times out, the terminal device will stop receiving the on-demand synchronization signal block.

[0224] Optionally, the radio resource control message may further include a physical cell identifier of a secondary cell supporting the on-demand synchronization signal block.

[0225] Optionally, the physical cell identifier used by the SSS (Secondary Synchronization Signal), PSS (Primary Synchronization Signal), DMRS (Demodulation Reference Signal) in PBCH (Physical Broadcast Channel) of the on-demand synchronization signal block is the same as the physical cell identifier of the always-on SSB.

[0226] Optionally, the on-demand synchronization signal block and the always-on synchronization signal block are located in the same serving cell.

[0227] Optionally, the on-demand synchronization signal block activation indication and the secondary cell activation indication may be located in the same radio resource control message.

[0228] Optionally, the on-demand synchronization signal block activation indication and the secondary cell activation indication may be located in the same radio resource control message, which may be applicable to activating the secondary cell and on-demand synchronization signal block transmission at the same time when configuring the secondary cell through the radio resource control message.

[0229] Optionally, the on-demand synchronization signal block activation indication and the secondary cell activation indication may also be located in different radio resource control messages.

[0230] Optionally, the on-demand synchronization signal block activation indication and the secondary cell activation indication may also be located in different wireless resource control messages, which can be applicable to activating only the secondary cell or not activating the secondary cell at the same time when the secondary cell is configured through the wireless resource control message at the second moment, and activating the on-demand synchronization signal block transmission only through the wireless resource control message at the third moment.

[0231] Optionally, the on-demand synchronization signal block activation indication and the secondary cell activation indication are located in the same radio resource control message, and the two indications use the same field. Optionally, this field is 2 bits. Specifically, bit 00 indicates that the secondary cell activation state is inactive and the on-demand synchronization signal block is not transmitted; bit 01 indicates that the secondary cell activation state is active and the on-demand synchronization signal block is not transmitted; bit 10 indicates that the secondary cell activation state is inactive and the on-demand synchronization signal block is transmitted; and bit 11 indicates that the secondary cell activation state is active and the on-demand synchronization signal block is transmitted.

[0232] Optionally, assume that the on-demand synchronization signal block activation indication and the secondary cell activation indication are located in the same radio resource control message, and the two indications use the same field. Optionally, assume that the field is Scellstate, and if Scellstate is configured as activated, the secondary cell activation state is activated and the on-demand synchronization signal block is transmitted; if Scellstate is not configured, the secondary cell activation state is inactivated and the on-demand synchronization signal block is not transmitted.

[0233] Optionally, the on-demand synchronization signal block activation indication and the secondary cell activation indication are located in the same radio resource control message, and the two indications use different fields. Optionally, the two fields included in the radio resource control message are the on-demand synchronization signal block activation indication and the secondary cell activation indication.

[0234] Optionally, the on-demand synchronization signal block activation indication and the secondary cell activation indication are located in different radio resource control messages. Optionally, if a radio resource control message includes the secondary cell activation indication but does not include the on-demand synchronization signal block activation indication, then when a secondary cell is added, only the secondary cell is synchronously activated, and transmission of the on-demand synchronization signal block is not activated.

[0235] Optionally, transmitting the on-demand synchronization signal block based on the radio resource control message is applicable to the first configuration stage and / or the second configuration stage of the secondary cell.

[0236] Optionally, the first configuration stage includes: the secondary cell is configured to the terminal device and before the terminal device receives a secondary cell activation command.

[0237] Optionally, the second configuration stage includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed,

[0238] Optionally, in response to receiving a wireless resource control message containing an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, transmission of the on-demand synchronization signal block begins at the first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment.

[0239] Optionally, the value of T is related to the delay of the radio resource control process.

[0240] Optionally, the radio resource control process delay is an RRC process delay required from the sending of an RRC message to the completion of the RRC message.

[0241] Optionally, when a secondary cell is added or configured, an RRC process delay required from the sending of an RRC reconfiguration message to the completion of the RRC reconfiguration message is 16 ms.

[0242] Optionally, the value of T is related to the first time.

[0243] Optionally, the first time is the time from when the terminal device receives a physical downlink shared channel carrying a radio resource control message to when the terminal device sends a physical uplink control channel carrying a corresponding hybrid automatic repeat request confirmation.

[0244] Optionally, the value of T is related to the state of the secondary cell.

[0245] Optionally, the secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

[0246] Optionally, if the secondary cell in FR1 meets the second condition, the secondary cell is called known.

[0247] Optionally, the second condition is: before receiving the secondary cell activation command, within a period equal to max (5*secondary cell measurement period, 5*discontinuous reception period), the terminal device sends a valid measurement report for the activated secondary cell, and according to the cell identification conditions specified in 38.133, the SSB measured by the terminal device is still detectable; and during the secondary cell activation delay, within a period equal to max (5*secondary cell measurement period, 5*discontinuous reception period), according to the cell identification conditions specified in 38.133, the SSB measured by the terminal device also remains detectable.

[0248] Optionally, if the secondary cell in FR1 does not meet the second condition, the secondary cell is called unknown.

[0249] Optionally, if the secondary cell in FR2 meets the third condition, the secondary cell is called known.

[0250] Optionally, the third condition is: before the terminal device receives the last activation command of the physical downlink control channel (PDCCH) transmission configuration indication (TCI), the physical downlink shared channel (PDSCH) TCI (when applicable) and the semi-static CSI-RS for the channel quality indication (CQI) report (when applicable), and within a 4-second period for terminal devices supporting power levels 1 / 5 or a 3-second period for terminal devices supporting power levels 2 / 3 / 4, the terminal device has sent a valid L3-RSRP measurement report with an on-demand synchronization signal block index, and the terminal device receives the medium access control element (MAC) activating the TCI no later than after sending the L3-RSRP report. element, MAC-CE) at the time when the secondary cell activation command is received; and from the L3-RSRP reporting to the valid CQI reporting period, the SSB of the reported valid index can still be detected according to the cell identification conditions specified in 38.133, and the TCI state is selected based on one of the most recently reported on-demand synchronization signal block indices.

[0251] Optionally, if the secondary cell in FR2 does not meet the third condition, the secondary cell is called unknown.

[0252] Optionally, the value range of the secondary cell measurement period is {sf160, sf256, sf320, sf512, sf640, sf1024, sf1280}, where sf160 corresponds to 160 subframes, sf256 corresponds to 256 subframes, and so on.

[0253] Optionally, the value range of the discontinuous reception period is {ms10, ms20, ms32, ms40ms60, ms64, ms70, ms80, ms128, ms160, ms256, ms320, ms512, ms640, ms1024, ms1280, ms2048, ms2560, ms5120, ms10240}, where ms10 corresponds to 10ms, ms20 corresponds to 20ms, and so on.

[0254] Optionally, the value range of the discontinuous reception period is {ms2, ms3, ms4, ms5, ms6, ms7, ms8, ms10, ms14, ms16, ms20, ms30, ms32, ms35, ms40, ms64, ms80, ms128, ms160, ms256, ms320, ms512, ms640}, where ms2 corresponds to 2 ms, ms3 corresponds to 3 ms, and so on.

[0255] Optionally, the value of T is related to the subcarrier spacing of a physical uplink control channel (PUCCH).

[0256] Optionally, the value of T is greater than or equal to Time slots, where time slot n is the time slot number in which the terminal device receives the radio resource control message containing the on-demand synchronization signal block activation indication; time slot n+m is the time slot number used for PUCCH transmission, and the PUCCH contains the Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) information corresponding to the PDSCH carrying the radio resource control message, It is the number of slots included in one subframe determined by the subcarrier spacing μ of the PUCCH.

[0257] Optionally, in response to satisfying the first condition, transmission of the on-demand synchronization signal block is stopped.

[0258] Optionally, after the terminal device receives a radio resource control message including an activation indication of the on-demand synchronization signal block, it starts receiving the on-demand synchronization signal block. Then, once the first condition is met, the terminal device stops receiving the on-demand synchronization signal block.

[0259] Optionally, satisfying the first condition includes at least one of the following:

[0260] The number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions N configured in the downlink information;

[0261] The deactivation timer of the on-demand synchronization signal block has expired;

[0262] receiving a medium access control information element including a deactivation indication of an on-demand synchronization signal block;

[0263] Downlink control information including a deactivation indication of an on-demand synchronization signal block is received.

[0264] Optionally, in response to satisfying the first condition, the terminal device stops transmitting the on-demand synchronization signal block after T1 time slots or symbols.

[0265] Optionally, the value of T1 is related to the second time.

[0266] Optionally, the second time is the time from receiving a physical downlink shared channel carrying a media access control information element to sending a physical uplink control channel carrying a corresponding hybrid automatic repeat request confirmation.

[0267] Optionally, T1 is an integer greater than or equal to 0.

[0268] Optionally, assume that the first condition is satisfied by receiving a media access control element containing a deactivation indication of an on-demand synchronization signal block. Assume that the activation indication of the on-demand synchronization signal block is contained in a radio resource control message. Assume that according to the radio resource control message, the period of the on-demand synchronization signal block is 10ms. Assume that the time domain position of the on-demand synchronization signal block is determined based on the first rule. Referring to Figure 7, the terminal device receives a radio resource control message containing an activation indication of the on-demand synchronization signal block at a first moment, and after T time slots accumulated from the first moment, it starts to receive the on-demand synchronization signal block at a period of 10ms at the first candidate position of the on-demand synchronization signal block. The terminal device stops receiving the on-demand synchronization signal block T1 time slots after receiving the media access control element containing the deactivation indication of the on-demand synchronization signal block.

[0269] Through the technical solution of this embodiment, the on-demand synchronization signal block is transmitted based on the wireless resource control message, and the specific content of the wireless resource control message indicating the transmission of the on-demand synchronization signal block is clarified, so as to accurately and effectively control and manage the transmission of the on-demand synchronization signal block; and / or, the signaling application time is clarified, so as to respond to and execute related operations of the on-demand synchronization signal block transmission in a timely and accurate manner, and / or thereby improve the efficiency and / or accuracy of the on-demand synchronization signal block transmission.

[0270] Fourth embodiment

[0271] On the basis of any of the foregoing embodiments of the present application, this embodiment further discloses the control method in the foregoing embodiments, and specifically discloses an exemplary scheme for transmitting on-demand synchronization signal blocks based on media access control information elements.

[0272] Optionally, the media access control information element includes at least one of a secondary cell activation and / or deactivation indication, an on-demand synchronization signal block activation and / or deactivation indication, a tracking reference signal indication, a time domain offset of the on-demand synchronization signal block, and an on-demand synchronization signal block index in the synchronization signal block burst set.

[0273] Optionally, the secondary cell activation and / or deactivation indication is used to activate or deactivate the secondary cell.

[0274] Optionally, the on-demand synchronization signal block activation and / or deactivation indication is used to notify the terminal device whether to start on-demand synchronization signal block reception or stop on-demand synchronization signal block reception.

[0275] Optionally, the tracking reference signal indication is used to indicate whether a tracking reference signal exists in the corresponding secondary cell.

[0276] Optionally, the time domain offset of the on-demand synchronization signal block is used to determine the time domain position of the on-demand synchronization signal block.

[0277] Optionally, the time domain offset of the on-demand synchronization signal block is the time domain offset between the first burst of the on-demand synchronization signal block and the first always-on synchronization signal block burst sent after the first symbol of the wireless frame 0 of the serving cell.

[0278] Optionally, the time domain offset value range of the on-demand synchronization signal block is {ms5, ms10, ms15, ms20, ms40, ms80}, where ms5 represents 5ms, ms10 represents 10ms, and so on.

[0279] Optionally, assume that the time domain offset of the on-demand synchronization signal block is 5 ms, that is, the first burst of the on-demand synchronization signal block is sent 5 ms later than the first burst of the always-on synchronization signal block sent after the first symbol of radio frame 0 of the serving cell. Assuming that the transmission period of the on-demand synchronization signal block is 10 ms and the transmission period of the always-on synchronization signal block is 40 ms, the transmission method of the always-on synchronization signal block and the on-demand synchronization signal block is shown in Figure 8.

[0280] Optionally, the time domain position of the on-demand synchronization signal block is determined based on a first rule.

[0281] Optionally, the on-demand synchronization signal block index in the synchronization signal block burst set is used to determine the number of beams supporting the on-demand synchronization signal block.

[0282] Optionally, assume that the on-demand synchronization signal block index field in the synchronization signal block burst set is ssb-PositionsInBurst-R19, and each bit in ssb-PositionsInBurst-R19 represents one on-demand synchronization signal block index, for example, the first bit corresponds to on-demand synchronization signal block index 0, the second bit corresponds to on-demand synchronization signal block index 1, and so on. When the Kth bit in ssb-PositionsInBurst-R19 is set to 1, the SSB with on-demand synchronization signal block index K-1 in an on-demand synchronization signal block burst set is transmitted; when the Kth bit in ssb-PositionsInBurst-R19 is set to 0, the SSB with on-demand synchronization signal block index K-1 in an on-demand synchronization signal block burst set is not transmitted.

[0283] Optionally, the period of the on-demand synchronization signal block is used to determine the transmission period of the on-demand synchronization signal block.

[0284] Optionally, the period of the on-demand synchronization signal block may range from {ms5, ms10, ms20, ms40, ms80, ms160}. Optionally, ms5 is 5 ms, ms10 is 10 ms, and so on.

[0285] Optionally, the on-demand synchronization signal block activation and / or deactivation indication and the secondary cell activation and / or deactivation indication may be located in the same media access control information element.

[0286] Optionally, the on-demand synchronization signal block activation and / or deactivation indication and the secondary cell activation and / or deactivation indication may also be located in different media access control information elements.

[0287] Optionally, it is assumed that the on-demand synchronization signal block activation and / or deactivation indication and the secondary cell activation and / or deactivation indication are located in the same media access control information element and the two indications use different fields. Optionally, the on-demand synchronization signal block activation and / or deactivation indication occupies 1 8-byte bit, and the secondary cell activation and / or deactivation indication occupies 1 8-byte bit. Optionally, the media access control information element also includes a tracking reference signal indication. Therefore, the composition of the media access control information element refers to Table 1. Optionally, the media access control information element includes 1 8-bit byte secondary cell activation and / or deactivation indication, 1 8-bit byte on-demand synchronization signal block activation and / or deactivation indication, and one or more tracking reference signal indication fields.

[0288] Table 1. First example table of on-demand synchronization signal block activation and / or deactivation indication

[0289] Optionally, Ci in Table 1 is used to indicate the activation and / or deactivation status of the secondary cell with index i. When Ci is set to 1, the secondary cell with index i is in the activated state and one TRS IDj field is included in the activated secondary cell; when Ci is set to 0, the secondary cell with index i is in the deactivated state and no TRS IDj field is included in the activated secondary cell.

[0290] Optionally, the SSBi in Table 1 is used to notify the terminal device whether to start or stop receiving the on-demand synchronization signal block in the secondary cell with index i.

[0291] Optionally, for TRSIDj, if TRS IDj is set to a non-zero value, it indicates that the TRS of the corresponding serving cell is activated; if TRS IDj is set to zero, it indicates that the corresponding serving cell has no TRS.

[0292] Optionally, R is a reserved bit and is set to 0.

[0293] Optionally, assume that the on-demand synchronization signal block activation and / or deactivation indication and the secondary cell activation and / or deactivation indication are located in the same media access control information element, and that the two indications use different fields. Optionally, the on-demand synchronization signal block activation and / or deactivation indication occupies one 8-byte bit, and the secondary cell activation and / or deactivation indication occupies one 8-byte bit. Optionally, the media access control information element also includes a tracking reference signal indication and an on-demand synchronization signal block index in the synchronization signal block burst set corresponding to each secondary cell that activates and / or supports the on-demand synchronization signal block. Optionally, the maximum number of on-demand synchronization signal block indexes in the synchronization signal block burst set corresponding to each secondary cell is 8. Therefore, the composition of the media access control information element refers to Table 2. Specifically, the media access control information element includes one 8-byte secondary cell activation and / or deactivation indication, one 8-byte on-demand synchronization signal block activation and / or deactivation indication, one or more tracking reference signal indication fields, and one or more 8-byte on-demand synchronization signal block indexes.

[0294] Table 2. Second example table of on-demand synchronization signal block activation and / or deactivation indication

[0295] Optionally, Ci in Table 2 is used for the activation and / or deactivation status of the secondary cell with index i. When Ci is set to 1, the secondary cell with index i is in the activated state and one TRS IDj field is included in the activated secondary cell; when Ci is set to 0, the secondary cell with index i is in the deactivated state and no TRS IDj field is included in the activated secondary cell.

[0296] Optionally, the SSBi in Table 2 is used to notify the terminal device whether to start or stop receiving the on-demand synchronization signal block in the secondary cell with index i.

[0297] Optionally, for TRS IDj, if TRS IDj is set to a non-zero value, it indicates that the TRS of the corresponding serving cell is activated; if TRS IDj is set to zero, it indicates that the corresponding serving cell has no TRS.

[0298] Optionally, for the on-demand synchronization signal block index ssb-PositionsInBurst ID j in the synchronization signal block burst set corresponding to a certain service cell, ssb-PositionsInBurst ID j contains 8 bits, and the first bit of ssb-PositionsInBurst ID j corresponds to the on-demand synchronization signal block index 0, the second bit of ssb-PositionsInBurst ID j corresponds to the on-demand synchronization signal block index 1, and so on. When the Kth bit in ssb-PositionsInBurst ID j is set to 1, the on-demand synchronization signal block with the on-demand synchronization signal block index K-1 in one on-demand synchronization signal block burst set needs to be transmitted; when the Kth bit in ssb-PositionsInBurst ID j is set to 0, the on-demand synchronization signal block with the on-demand synchronization signal block index K-1 in one on-demand synchronization signal block burst set is not transmitted.

[0299] Optionally, if the maximum number of on-demand synchronization signal block indexes in the synchronization signal block burst set corresponding to each secondary cell is 64, the on-demand synchronization signal block indexes in the synchronization signal block burst set of the corresponding serving cell in the media access control information element occupy 8 8-bytes.

[0300] Optionally, assume that the on-demand synchronization signal block activation and / or deactivation indication and the secondary cell activation and / or deactivation indication are located in the same media access control information element and the two indications use the same field. Assume that this field is Ci, which occupies 8 bits. Optionally, Ci is used to indicate the activation and / or deactivation status of the secondary cell with the secondary cell index i; and to indicate the activation and / or deactivation of the on-demand synchronization signal block transmission of the secondary cell with the secondary cell index i. When Ci is set to 1, it indicates that the secondary cell with the secondary cell index i is in the activated state, and the on-demand synchronization signal block of the secondary cell with the cell index i starts to be transmitted; when Ci is set to 0, it indicates that the secondary cell with the secondary cell index i is in the deactivated state, and the secondary cell with the cell index i does not support on-demand synchronization signal block transmission. Refer to Table 3 for the composition of the media access control information element.

[0301] Table 3. Third example table of on-demand synchronization signal block activation and / or deactivation indication

[0302] Optionally, the LCIDs or eLCIDs of the at least two media access control information elements are different, and the media access control information element includes at least two of the following:

[0303] LCID of the media access control information element containing both the on-demand synchronization signal block activation and / or deactivation indication and the secondary cell activation indication and / or deactivation signaling;

[0304] eLCID of the media access control information element containing both the on-demand synchronization signal block activation and / or deactivation indication and the secondary cell activation indication and / or deactivation signaling;

[0305] eLCID of the media access control information element containing both on-demand synchronization signal block activation and / or deactivation indication and enhanced secondary cell activation indication and / or deactivation signaling

[0306] The LCID of the media access control information element containing the secondary cell activation and / or deactivation indication and not containing the on-demand synchronization signal block activation and / or deactivation indication;

[0307] The eLCID of the media access control information element containing the enhanced secondary cell activation and / or deactivation indication and not containing the on-demand synchronization signal block activation and / or deactivation indication;

[0308] The LCID of the media access control information element containing the on-demand synchronization signal block activation and / or deactivation indication and not containing the secondary cell activation and / or deactivation indication;

[0309] The eLCID of the media access control information element containing the on-demand synchronization signal block activation and / or deactivation indication and not containing the secondary cell activation and / or deactivation indication;

[0310] The LCID of the media access control information element containing the on-demand synchronization signal block activation and / or deactivation indication and not containing the enhanced secondary cell activation and / or deactivation indication;

[0311] The eLCID of the media access control information element that contains the on-demand synchronization signal block activation and / or deactivation indication and does not contain the enhanced secondary cell activation and / or deactivation indication.

[0312] Optionally, transmitting an on-demand synchronization signal block based on a medium access control information element is applicable to the first configuration stage and / or the second configuration stage of the secondary cell.

[0313] Optionally, the first configuration stage includes: the secondary cell is configured to the terminal device and before the terminal device receives a secondary cell activation command.

[0314] Optionally, the second configuration stage includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0315] Optionally, when an on-demand synchronization signal block is transmitted based on a media access control information element, and it is applicable when the terminal device receives a secondary cell activation command, the media access control information element also includes an on-demand synchronization signal block activation and / or deactivation indication and a secondary cell activation and / or deactivation indication.

[0316] Optionally, in response to receiving a media access control information element containing an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, transmission of the on-demand synchronization signal block begins at the first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment.

[0317] Optionally, the value of T is related to the first time.

[0318] Optionally, the first time is the time from receiving a physical downlink shared channel carrying a media access control information element to sending a physical uplink control channel carrying a corresponding hybrid automatic repeat request confirmation.

[0319] Optionally, the value of T is related to the state of the secondary cell.

[0320] Optionally, the secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

[0321] Optionally, the value of T is related to the subcarrier spacing of the physical uplink control channel.

[0322] Optionally, the value of T is greater than or equal to Time slots, time slot n is the time slot number in which the terminal device receives the media access control information element containing the on-demand synchronization signal block activation indication; time slot n+m is the time slot number used for PUCCH transmission, and the PUCCH contains the HARQ-ACK information corresponding to the PDSCH carrying the radio resource control message, The number of slots contained in one subframe is determined by the subcarrier spacing μ of the PUCCH.

[0323] Optionally, in response to satisfying the first condition, transmission of the on-demand synchronization signal block is stopped.

[0324] Optionally, after the terminal device receives a media access control information element including an activation indication of the on-demand synchronization signal block, it starts receiving the on-demand synchronization signal block. Then, once the first condition is met, the terminal device stops receiving the on-demand synchronization signal block.

[0325] Optionally, satisfying the first condition includes at least one of the following:

[0326] The number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions N configured in the downlink information;

[0327] The deactivation timer of the on-demand synchronization signal block has expired;

[0328] receiving a medium access control information element including a deactivation indication of an on-demand synchronization signal block;

[0329] Downlink control information including a deactivation indication of an on-demand synchronization signal block is received.

[0330] Optionally, in response to satisfying the first condition, the terminal device stops transmitting the on-demand synchronization signal block after T1 time slots or symbols.

[0331] Optionally, the value of T1 is related to the second time.

[0332] Optionally, the second time is the time from receiving a physical downlink shared channel carrying a media access control information element to sending a physical uplink control channel carrying a corresponding hybrid automatic repeat request confirmation.

[0333] Optionally, it is assumed that the first condition is satisfied by receiving a media access control cell containing a deactivation indication of an on-demand synchronization signal block. It is assumed that the activation indication of the on-demand synchronization signal block is contained in the media access control cell. It is assumed that according to the wireless resource control information, the period of the on-demand synchronization signal block is 10ms. It is assumed that the time domain position of the on-demand synchronization signal block is determined based on the first rule. Referring to Figure 10, Figure 10 is a schematic diagram of the start of transmission of the synchronization signal block according to the fourth embodiment. The terminal device receives the media access control cell containing the activation indication of the on-demand synchronization signal block at the first moment, and after T time slots accumulated from the first moment, it starts to receive the on-demand synchronization signal block at the first candidate position of the on-demand synchronization signal block according to a period of 10ms. The terminal device stops receiving the on-demand synchronization signal block after receiving the media access control cell containing the deactivation indication of the on-demand synchronization signal block.

[0334] It should be noted that, in the embodiment of the present application, the unit of T is used for description as a time slot, and in other embodiments, the unit of T may also be a symbol.

[0335] Through the technical solution of this embodiment, on-demand synchronization signal blocks are transmitted based on media access control information elements, and the specific content of the media access control information elements indicating the transmission of on-demand synchronization signal blocks is clarified, so as to accurately and effectively control and manage the transmission of on-demand synchronization signal blocks; and / or, the signaling application time is clarified, so as to respond to and execute related operations of on-demand synchronization signal block transmission in a timely and accurate manner, and / or thereby improve the efficiency and / or accuracy of on-demand synchronization signal block transmission.

[0336] Fifth embodiment

[0337] On the basis of any of the foregoing embodiments of the present application, this embodiment further discloses the control method in the foregoing embodiments, and specifically discloses an exemplary scheme for transmitting on-demand synchronization signal blocks based on downlink control information.

[0338] Optionally, the downlink control information includes at least one of the period of the on-demand synchronization signal block, the activation and / or deactivation indication of the on-demand synchronization signal block, the secondary cell index, the on-demand synchronization signal block index in the synchronization signal block burst set, and the time domain offset of the on-demand synchronization signal block.

[0339] Optionally, the period of the on-demand synchronization signal block is used to determine the transmission period of the on-demand synchronization signal block.

[0340] Optionally, the period of the on-demand synchronization signal block may range from {ms5, ms10, ms20, ms40, ms80, ms160}. Optionally, ms5 is 5 ms, ms10 is 10 ms, and so on.

[0341] Optionally, the secondary cell index is an index of a secondary cell that supports on-demand synchronization signal block transmission.

[0342] Optionally, the on-demand synchronization signal block index in the synchronization signal block burst set is used to determine the number of beams supporting the on-demand synchronization signal block.

[0343] Optionally, assume that the on-demand synchronization signal block index field in the synchronization signal block burst set is ssb-PositionsInBurst-R19, and each bit in ssb-PositionsInBurst-R19 represents one on-demand synchronization signal block index, such as the first bit corresponds to on-demand synchronization signal block index 0, the second bit corresponds to on-demand synchronization signal block index 1, and so on. When the Kth bit in ssb-PositionsInBurst-R19 is set to 1, the SSB with on-demand synchronization signal block index K-1 in an on-demand synchronization signal block burst set is transmitted; when the Kth bit in ssb-PositionsInBurst-R19 is set to 0, the SSB with on-demand synchronization signal block index K-1 in an on-demand synchronization signal block burst set is not transmitted.

[0344] Optionally, the time domain offset of the on-demand synchronization signal block is used to determine the time domain position of the on-demand synchronization signal block.

[0345] Optionally, the time domain offset of the on-demand synchronization signal block is the time domain offset between the first burst of the on-demand synchronization signal block and the first always-on synchronization signal block burst sent after the first symbol of the wireless frame 0 of the serving cell.

[0346] Optionally, the time domain offset of the on-demand synchronization signal block ranges from {ms5, ms10, ms15, ms20, ms40, ms80}, where ms5 represents 5 ms, ms10 represents 10 ms, and so on.

[0347] Optionally, assume that the time domain offset of the on-demand synchronization signal block is 5 ms, that is, the first burst of the on-demand synchronization signal block is sent 5 ms later than the first burst of the always-on synchronization signal block sent after the first symbol of radio frame 0 of the serving cell. Assuming that the transmission period of the on-demand synchronization signal block is 10 ms and the transmission period of the always-on synchronization signal block is 40 ms, the transmission method of the always-on synchronization signal block and the on-demand synchronization signal block is as shown in Figure 9 of the aforementioned embodiment.

[0348] Optionally, the time domain position of the on-demand synchronization signal block is determined based on a first rule.

[0349] Optionally, controlling the transmission of synchronization signal blocks based on downlink control information is applicable to the first configuration stage and / or the third configuration stage of the secondary cell.

[0350] Optionally, the first configuration stage includes: the secondary cell is configured for the terminal device and before the terminal device receives a secondary cell activation command;

[0351] Optionally, the third configuration stage includes at least one of the following: after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0352] Optionally, in response to receiving downlink control information including an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, transmission of the on-demand synchronization signal block begins at the first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment.

[0353] Optionally, the value of T is greater than or equal to 0.

[0354] The downlink control information optionally including the on-demand synchronization signal block activation indication and the on-demand synchronization signal block transmission can be located in the same time slot.

[0355] Optionally, in response to satisfying the first condition, transmission of the on-demand synchronization signal block is stopped.

[0356] Optionally, when the terminal device receives downlink control information including an activation indication of the on-demand synchronization signal block, it starts receiving the on-demand synchronization signal block. Then, once the first condition is met, the terminal device stops receiving the on-demand synchronization signal block.

[0357] Optionally, satisfying the first condition includes at least one of the following:

[0358] The number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions N configured in the downlink information;

[0359] The deactivation timer of the on-demand synchronization signal block has expired;

[0360] receiving a medium access control information element including a deactivation indication of an on-demand synchronization signal block;

[0361] Downlink control information including a deactivation indication of an on-demand synchronization signal block is received.

[0362] Optionally, in response to satisfying the first condition, the terminal device stops transmitting the on-demand synchronization signal block after T1 time slots or symbols.

[0363] Optionally, the value of T1 is greater than or equal to 0.

[0364] Through the technical solution of this embodiment, the on-demand synchronization signal block is transmitted based on the downlink control information, and the specific content of the downlink control information indicating the transmission of the on-demand synchronization signal block is clarified, so as to accurately and effectively control and manage the transmission of the on-demand synchronization signal block; and / or, the signaling application time is clarified, so as to respond to and execute related operations of the on-demand synchronization signal block transmission in a timely and accurate manner, and / or thereby improve the efficiency and / or accuracy of the on-demand synchronization signal block transmission.

[0365] Sixth embodiment

[0366] 11 is a flow chart of a control method according to a sixth embodiment. The method of this embodiment can be applied to a network device (such as a base station), and includes the following steps:

[0367] S1: Send downlink information so that the terminal device can transmit on-demand synchronization signal blocks based on the downlink information.

[0368] Optionally, the downlink information includes at least one of a radio resource control message, a media access control information element, and downlink control information.

[0369] Optionally, the downlink information also includes at least one of the secondary cell index, the subcarrier spacing of the on-demand synchronization signal block, the frequency of the on-demand synchronization signal block, the frequency domain offset of the on-demand synchronization signal block, the transmission power of the on-demand synchronization signal block, the time domain offset of the on-demand synchronization signal block, the secondary cell activation indication, the secondary cell activation and / or deactivation indication, the on-demand synchronization signal block index in the synchronization signal block burst set, the period of the on-demand synchronization signal block, the on-demand synchronization signal block activation indication, the on-demand synchronization signal block activation and / or deactivation indication, the maximum number of transmissions N of the on-demand synchronization signal block, and the on-demand synchronization signal block deactivation timer.

[0370] Optionally, the wireless resource control message includes at least one of the secondary cell index, the subcarrier spacing of the on-demand synchronization signal block, the frequency of the on-demand synchronization signal block, the frequency domain offset of the on-demand synchronization signal block, the transmission power of the on-demand synchronization signal block, the time domain offset of the on-demand synchronization signal block, the secondary cell activation indication, the on-demand synchronization signal block index in the synchronization signal block burst set, the period of the on-demand synchronization signal block, the on-demand synchronization signal block activation indication, the maximum number of transmissions N of the on-demand synchronization signal block, and the on-demand synchronization signal block deactivation timer.

[0371] Optionally, the media access control information element includes at least one of a secondary cell activation and / or deactivation indication, an on-demand synchronization signal block activation and / or deactivation indication, a tracking reference signal indication, a time domain offset of the on-demand synchronization signal block, and an on-demand synchronization signal block index in the synchronization signal block burst set.

[0372] Optionally, the downlink control information includes at least one of the period of the on-demand synchronization signal block, the activation and / or deactivation indication of the on-demand synchronization signal block, the secondary cell index, the on-demand synchronization signal block index in the synchronization signal block burst set, and the time domain offset of the on-demand synchronization signal block.

[0373] Optionally, in response to receiving downlink information containing an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, the terminal device starts transmitting the on-demand synchronization signal block at the first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment.

[0374] Optionally, after starting to transmit the on-demand synchronization signal block, the terminal device transmits the on-demand synchronization signal block through the frequency domain position of the on-demand synchronization signal block determined based on the downlink information, and / or periodically transmits the on-demand synchronization signal block based on the period of the on-demand synchronization signal block in the downlink information.

[0375] Optionally, the terminal device stops transmitting the on-demand synchronization signal block in response to satisfying the first condition.

[0376] Optionally, the value of T is related to the delay of the radio resource control process.

[0377] Optionally, the value of T is related to the first time.

[0378] Optionally, the value of T is related to the state of the secondary cell.

[0379] Optionally, the value of T is related to the subcarrier spacing of the physical uplink control channel.

[0380] Optionally, the value of T is an integer greater than or equal to 0.

[0381] Optionally, the first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information.

[0382] Optionally, the first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; the deactivation timer of the on-demand synchronization signal block times out; a media access control information element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

[0383] Optionally, the first time is the time from receiving a physical downlink shared channel carrying a radio resource control message to sending a physical uplink control channel carrying a corresponding hybrid automatic repeat request confirmation.

[0384] Optionally, the first time is the time from receiving a physical downlink shared channel carrying a media access control information element to sending a physical uplink control channel carrying a corresponding hybrid automatic repeat request confirmation.

[0385] Optionally, the secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

[0386] Optionally, transmitting an on-demand synchronization signal block based on a radio resource control message is applicable to the first configuration phase and / or the second configuration phase of the secondary cell.

[0387] Optionally, transmitting an on-demand synchronization signal block based on a medium access control information element is applicable to the first configuration stage and / or the second configuration stage of the secondary cell.

[0388] Optionally, controlling the transmission of synchronization signal blocks based on downlink control information is applicable to the first configuration stage and / or the third configuration stage of the secondary cell.

[0389] Optionally, the first configuration stage includes: the secondary cell is configured to the terminal device and before the terminal device receives a secondary cell activation command.

[0390] Optionally, the second configuration stage includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0391] Optionally, the third configuration stage includes at least one of the following: after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0392] Optionally, if the secondary cell in FR1 meets the second condition, the secondary cell is called known.

[0393] Optionally, the second condition is: before receiving the secondary cell activation command, within a period equal to max (5*secondary cell measurement period, 5*discontinuous reception period), the terminal device sends a valid measurement report for the activated secondary cell, and according to the cell identification conditions specified in 38.133, the SSB measured by the terminal device is still detectable; and during the secondary cell activation delay, within a period equal to max (5*secondary cell measurement period, 5*discontinuous reception period), according to the cell identification conditions specified in 38.133, the SSB measured by the terminal device also remains detectable.

[0394] Optionally, if the secondary cell in FR1 does not meet the second condition, the secondary cell is called unknown.

[0395] Optionally, if the secondary cell in FR2 meets the third condition, the secondary cell is called known.

[0396] Optionally, the third condition is: before the terminal device receives the last activation command of the physical downlink control channel (PDCCH) transmission configuration indication (TCI), the physical downlink shared channel (PDSCH) TCI (when applicable) and the semi-static CSI-RS for the channel quality indication (CQI) report (when applicable), and within a 4-second period for terminal devices supporting power levels 1 / 5 or a 3-second period for terminal devices supporting power levels 2 / 3 / 4, the terminal device has sent a valid L3-RSRP measurement report with an on-demand synchronization signal block index, and the terminal device receives the medium access control element (MAC) activating the TCI no later than after sending the L3-RSRP report. element, MAC-CE) at the time when the secondary cell activation command is received; and from the L3-RSRP reporting to the valid CQI reporting period, the SSB of the reported valid index can still be detected according to the cell identification conditions specified in 38.133, and the TCI state is selected based on one of the most recently reported on-demand synchronization signal block indices.

[0397] Optionally, if the secondary cell in FR2 does not meet the third condition, the secondary cell is called unknown.

[0398] Optionally, the value range of the secondary cell measurement period is {sf160, sf256, sf320, sf512, sf640, sf1024, sf1280}, where sf160 corresponds to 160 subframes, sf256 corresponds to 256 subframes, and so on.

[0399] Optionally, the value range of the discontinuous reception period is {ms10, ms20, ms32, ms40ms60, ms64, ms70, ms80, ms128, ms160, ms256, ms320, ms512, ms640, ms1024, ms1280, ms2048, ms2560, ms5120, ms10240}, where ms10 corresponds to 10ms, ms20 corresponds to 20ms, and so on.

[0400] Optionally, the value range of the discontinuous reception period is {ms2, ms3, ms4, ms5, ms6, ms7, ms8, ms10, ms14, ms16, ms20, ms30, ms32, ms35, ms40, ms64, ms80, ms128, ms160, ms256, ms320, ms512, ms640}, where ms2 corresponds to 2 ms, ms3 corresponds to 3 ms, and so on.

[0401] Optionally, the value of T varies depending on the downlink information.

[0402] Optionally, the first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information.

[0403] Optionally, the first rule is: the candidate time domain position of the on-demand synchronization signal block within 5 ms satisfies at least one of the following schemes:

[0404] Solution A, 15 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2, 8} + 14·n.

[0405] Optionally, for a carrier frequency less than or equal to 3 GHz, n=0,1.

[0406] Optionally, for a carrier frequency greater than 3 GHz in FR1, n=0, 1, 2, 3.

[0407] Solution B, 30 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {4, 8, 16, 20} + 28·n.

[0408] Optionally, for a carrier frequency less than or equal to 3 GHz, n=0.

[0409] Optionally, for a carrier frequency greater than 3 GHz in FR1, n=0,1.

[0410] Solution C, 30 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2, 8} + 14·n.

[0411] Optionally, for FDD: for a carrier frequency less than or equal to 3 GHz, n=0, 1; for a carrier frequency greater than 3 GHz in FR1, n=0, 1, 2, 3.

[0412] Optionally, for TDD: for a carrier frequency less than 1.88 GHz, n=0, 1; for a carrier frequency greater than or equal to 1.88 GHz in FR1, n=0, 1, 2, 3.

[0413] Solution D, 120kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5ms half-frame is {4, 8, 16, 20} + 28·n.

[0414] Optionally, for carrier frequencies within FR2, n=0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18.

[0415] Scheme E, 240 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {8, 12, 16, 20, 32, 36, 40, 44} + 56·n.

[0416] Optionally, for carrier frequencies within FR2-1, n=0, 1, 2, 3, 5, 6, 7, 8.

[0417] Scheme F, 480 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2,9}+14·n.

[0418] Optionally, for carrier frequencies within FR2-2, n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31.

[0419] Scheme G, 960 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2, 9} + 14·n.

[0420] Optionally, for carrier frequencies within FR2-2, n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31.

[0421] Referring to FIG. 7 in the aforementioned embodiment, assuming that the first moment is the moment when the terminal device receives radio resource control information including an on-demand synchronization signal block activation indication, denoted as time slot n, then T time slots accumulated from the first moment refers to after time slot n + T. Therefore, in response to receiving radio resource control information including an on-demand synchronization signal block activation indication in time slot n, transmission of the on-demand synchronization signal block begins at the first candidate position of the on-demand synchronization signal block after time slot n + T, as shown in FIG. 7 .

[0422] Optionally, if counting is performed in symbols, in response to receiving wireless resource control information including an on-demand synchronization signal block activation indication at symbol n, transmission of the on-demand synchronization signal block begins at the first candidate position of the on-demand synchronization signal block after symbol n+T.

[0423] Optionally, the terminal device stops transmitting the on-demand synchronization signal block in response to satisfying the first condition.

[0424] Optionally, the first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; the deactivation timer of the on-demand synchronization signal block times out; a media access control information element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

[0425] Optionally, assume that the first condition is met: the terminal device receives downlink control information indicating the deactivation of the on-demand synchronization signal block, then after receiving the downlink control information indicating the deactivation of the on-demand synchronization signal block, the terminal device stops receiving the on-demand synchronization signal block activated by the wireless resource control information.

[0426] Through the technical solution of this embodiment, downlink information is sent to the terminal device so that the terminal device transmits the on-demand synchronization signal block based on the downlink information, clarifies the configuration information that needs to be obtained from the downlink information when transmitting the on-demand synchronization signal block, and the secondary cell stage mechanism applicable to the on-demand synchronization signal block transmitted based on different downlink information, thereby clarifying the signaling mechanism required for the transmission of the on-demand synchronization signal block, and / or thereby improving the transmission efficiency and / or accuracy of the on-demand synchronization signal block.

[0427] Seventh embodiment

[0428] Refer to FIG. 12 , which is a schematic diagram of an interaction sequence according to a seventh embodiment.

[0429] In this embodiment, a network device (eg, a base station) sends downlink information to a terminal device (eg, a mobile phone) so that the terminal device transmits an on-demand synchronization signal block based on the downlink information.

[0430] Optionally, the network device instructs the terminal device to transmit an on-demand synchronization signal block through downlink information.

[0431] Optionally, the downlink information includes at least one of a radio resource control message, a media access control information element, and downlink control information.

[0432] Optionally, the downlink information also includes at least one of the secondary cell index, the subcarrier spacing of the on-demand synchronization signal block, the frequency of the on-demand synchronization signal block, the frequency domain offset of the on-demand synchronization signal block, the transmission power of the on-demand synchronization signal block, the time domain offset of the on-demand synchronization signal block, the secondary cell activation indication, the secondary cell activation and / or deactivation indication, the on-demand synchronization signal block index in the synchronization signal block burst set, the period of the on-demand synchronization signal block, the on-demand synchronization signal block activation indication, the on-demand synchronization signal block activation and / or deactivation indication, the maximum number of transmissions N of the on-demand synchronization signal block, and the on-demand synchronization signal block deactivation timer.

[0433] Optionally, the wireless resource control message includes at least one of the secondary cell index, the subcarrier spacing of the on-demand synchronization signal block, the frequency of the on-demand synchronization signal block, the frequency domain offset of the on-demand synchronization signal block, the transmission power of the on-demand synchronization signal block, the time domain offset of the on-demand synchronization signal block, the secondary cell activation indication, the on-demand synchronization signal block index in the synchronization signal block burst set, the period of the on-demand synchronization signal block, the on-demand synchronization signal block activation indication, the maximum number of transmissions N of the on-demand synchronization signal block, and the on-demand synchronization signal block deactivation timer.

[0434] Optionally, the media access control information element includes at least one of a secondary cell activation and / or deactivation indication, an on-demand synchronization signal block activation and / or deactivation indication, a tracking reference signal indication, a time domain offset of the on-demand synchronization signal block, and an on-demand synchronization signal block index in the synchronization signal block burst set.

[0435] Optionally, the downlink control information includes at least one of the period of the on-demand synchronization signal block, the activation and / or deactivation indication of the on-demand synchronization signal block, the secondary cell index, the on-demand synchronization signal block index in the synchronization signal block burst set, and the time domain offset of the on-demand synchronization signal block.

[0436] Optionally, in response to receiving downlink information containing an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, the terminal device starts transmitting the on-demand synchronization signal block at the first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment.

[0437] Optionally, after starting to transmit the on-demand synchronization signal block, the terminal device transmits the on-demand synchronization signal block through the frequency domain position of the on-demand synchronization signal block determined based on the downlink information, and / or periodically transmits the on-demand synchronization signal block based on the period of the on-demand synchronization signal block in the downlink information.

[0438] Optionally, the terminal device stops transmitting the on-demand synchronization signal block in response to satisfying the first condition.

[0439] Optionally, the value of T is related to the delay of the radio resource control process.

[0440] Optionally, the value of T is related to the first time.

[0441] Optionally, the value of T is related to the state of the secondary cell.

[0442] Optionally, the value of T is related to the subcarrier spacing of the physical uplink control channel.

[0443] Optionally, the value of T is an integer greater than or equal to 0.

[0444] Optionally, the first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information.

[0445] Optionally, the first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; the deactivation timer of the on-demand synchronization signal block times out; a media access control information element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

[0446] Optionally, the first time is the time from receiving a physical downlink shared channel carrying a radio resource control message to sending a physical uplink control channel carrying a corresponding hybrid automatic repeat request confirmation.

[0447] Optionally, the first time is the time from receiving a physical downlink shared channel carrying a media access control information element to sending a physical uplink control channel carrying a corresponding hybrid automatic repeat request confirmation.

[0448] Optionally, the secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

[0449] Optionally, transmitting an on-demand synchronization signal block based on a radio resource control message is applicable to the first configuration phase and / or the second configuration phase of the secondary cell.

[0450] Optionally, transmitting an on-demand synchronization signal block based on a medium access control information element is applicable to the first configuration stage and / or the second configuration stage of the secondary cell.

[0451] Optionally, controlling the transmission of synchronization signal blocks based on downlink control information is applicable to the first configuration stage and / or the third configuration stage of the secondary cell.

[0452] Optionally, the first configuration stage includes: the secondary cell is configured to the terminal device and before the terminal device receives a secondary cell activation command.

[0453] Optionally, the second configuration stage includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0454] Optionally, the third configuration stage includes at least one of the following: after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0455] Optionally, if the secondary cell in FR1 meets the second condition, the secondary cell is called known.

[0456] Optionally, the second condition is: before receiving the secondary cell activation command, within a period equal to max (5*secondary cell measurement period, 5*discontinuous reception period), the terminal device sends a valid measurement report for the activated secondary cell, and according to the cell identification conditions specified in 38.133, the SSB measured by the terminal device is still detectable; and during the secondary cell activation delay, within a period equal to max (5*secondary cell measurement period, 5*discontinuous reception period), according to the cell identification conditions specified in 38.133, the SSB measured by the terminal device also remains detectable.

[0457] Optionally, if the secondary cell in FR1 does not meet the second condition, the secondary cell is called unknown.

[0458] Optionally, if the secondary cell in FR2 meets the third condition, the secondary cell is called known.

[0459] Optionally, the third condition is: before the terminal device receives the last activation command of the physical downlink control channel (PDCCH) transmission configuration indication (TCI), the physical downlink shared channel (PDSCH) TCI (when applicable) and the semi-static CSI-RS for the channel quality indication (CQI) report (when applicable), and within a 4-second period for terminal devices supporting power levels 1 / 5 or a 3-second period for terminal devices supporting power levels 2 / 3 / 4, the terminal device has sent a valid L3-RSRP measurement report with an on-demand synchronization signal block index, and the terminal device receives the medium access control element (MAC) activating the TCI no later than after sending the L3-RSRP report. element, MAC-CE) at the time when the secondary cell activation command is received; and from the L3-RSRP reporting to the valid CQI reporting period, the SSB of the reported valid index can still be detected according to the cell identification conditions specified in 38.133, and the TCI state is selected based on one of the most recently reported on-demand synchronization signal block indices.

[0460] Optionally, if the secondary cell in FR2 does not meet the third condition, the secondary cell is called unknown.

[0461] Optionally, the value range of the secondary cell measurement period is {sf160, sf256, sf320, sf512, sf640, sf1024, sf1280}, where sf160 corresponds to 160 subframes, sf256 corresponds to 256 subframes, and so on.

[0462] Optionally, the value range of the discontinuous reception period is {ms10, ms20, ms32, ms40ms60, ms64, ms70, ms80, ms128, ms160, ms256, ms320, ms512, ms640, ms1024, ms1280, ms2048, ms2560, ms5120, ms10240}, where ms10 corresponds to 10ms, ms20 corresponds to 20ms, and so on.

[0463] Optionally, the value range of the discontinuous reception period is {ms2, ms3, ms4, ms5, ms6, ms7, ms8, ms10, ms14, ms16, ms20, ms30, ms32, ms35, ms40, ms64, ms80, ms128, ms160, ms256, ms320, ms512, ms640}, where ms2 corresponds to 2 ms, ms3 corresponds to 3 ms, and so on.

[0464] Optionally, the value of T varies depending on the downlink information.

[0465] Optionally, the first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information.

[0466] Optionally, the first rule is: the candidate time domain position of the on-demand synchronization signal block within 5 ms satisfies at least one of the following schemes:

[0467] Solution A, 15 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2, 8} + 14·n.

[0468] Optionally, for a carrier frequency less than or equal to 3 GHz, n=0,1.

[0469] Optionally, for a carrier frequency greater than 3 GHz in FR1, n=0, 1, 2, 3.

[0470] Solution B, 30 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {4, 8, 16, 20} + 28·n.

[0471] Optionally, for a carrier frequency less than or equal to 3 GHz, n=0.

[0472] Optionally, for a carrier frequency greater than 3 GHz in FR1, n=0,1.

[0473] Solution C, 30 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2, 8} + 14·n.

[0474] Optionally, for FDD: for a carrier frequency less than or equal to 3 GHz, n=0, 1; for a carrier frequency greater than 3 GHz in FR1, n=0, 1, 2, 3.

[0475] Optionally, for TDD: for a carrier frequency less than 1.88 GHz, n=0, 1; for a carrier frequency greater than or equal to 1.88 GHz in FR1, n=0, 1, 2, 3.

[0476] Solution D, 120 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {4, 8, 16, 20} + 28·n.

[0477] Optionally, for carrier frequencies within FR2, n=0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18.

[0478] Scheme E, 240 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {8, 12, 16, 20, 32, 36, 40, 44} + 56·n.

[0479] Optionally, for carrier frequencies within FR2-1, n=0, 1, 2, 3, 5, 6, 7, 8.

[0480] Scheme F, 480 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2,9}+14·n.

[0481] Optionally, for carrier frequencies within FR2-2, n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31.

[0482] Scheme G, 960 kHz subcarrier spacing: The symbol number of the first OFDM symbol of the candidate SSB in a 5 ms half-frame is {2, 9} + 14·n.

[0483] Optionally, for carrier frequencies within FR2-2, n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31.

[0484] Referring to FIG. 7 in the aforementioned embodiment, assuming that the first moment is the moment when the terminal device receives radio resource control information including an on-demand synchronization signal block activation indication, denoted as time slot n, then T time slots accumulated from the first moment refers to after time slot n + T. Therefore, in response to receiving radio resource control information including an on-demand synchronization signal block activation indication in time slot n, transmission of the on-demand synchronization signal block begins at the first candidate position of the on-demand synchronization signal block after time slot n + T, as shown in FIG. 7 .

[0485] Optionally, if counting is performed in symbols, in response to receiving wireless resource control information including an on-demand synchronization signal block activation indication at symbol n, transmission of the on-demand synchronization signal block begins at the first candidate position of the on-demand synchronization signal block after symbol n+T.

[0486] Optionally, the first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; the deactivation timer of the on-demand synchronization signal block times out; a media access control information element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

[0487] Optionally, it is assumed that the first condition is met: the terminal device receives a media access control information element indicating deactivation of the on-demand synchronization signal block, and after receiving the media access control information element indicating deactivation of the on-demand synchronization signal block, the terminal device stops receiving the on-demand synchronization signal block activated by the wireless resource control information.

[0488] Through the technical solution of this embodiment, the network device sends downlink information to the terminal device, so that the terminal device transmits the on-demand synchronization signal block based on the downlink information, and realizes that the network device instructs the terminal device to transmit the on-demand synchronization signal block through the downlink information, clarifies the configuration information that needs to be obtained from the downlink information when the on-demand synchronization signal block is transmitted, and the secondary cell stage mechanism applicable to the transmission of the on-demand synchronization signal block based on different downlink information, thereby clarifying the signaling mechanism required for the transmission of the on-demand synchronization signal block, and / or thereby improving the transmission efficiency and / or accuracy of the on-demand synchronization signal block.

[0489] Eighth embodiment

[0490] Please refer to Figure 13, which is a schematic diagram of the structure of a control device provided in an embodiment of the present application. The device can be installed in or is the terminal device in the above-mentioned method embodiment. The control device shown in Figure 13 can be used to perform some or all of the functions in the method embodiment described in the above embodiment. As shown in Figure 13, the control device 1100 includes:

[0491] The control module 1101 is configured to transmit an on-demand synchronization signal block based on downlink information.

[0492] Optionally, the downlink information includes at least one of a radio resource control message, a media access control information element, and downlink control information.

[0493] Optionally, the downlink information also includes at least one of the secondary cell index, the subcarrier spacing of the on-demand synchronization signal block, the frequency of the on-demand synchronization signal block, the frequency domain offset of the on-demand synchronization signal block, the transmission power of the on-demand synchronization signal block, the time domain offset of the on-demand synchronization signal block, the secondary cell activation indication, the secondary cell activation and / or deactivation indication, the on-demand synchronization signal block index in the synchronization signal block burst set, the period of the on-demand synchronization signal block, the on-demand synchronization signal block activation indication, the on-demand synchronization signal block activation and / or deactivation indication, the maximum number of transmissions N of the on-demand synchronization signal block, and the on-demand synchronization signal block deactivation timer.

[0494] Optionally, the device further comprises at least one of the following:

[0495] The radio resource control message includes at least one of a secondary cell index, a subcarrier spacing of an on-demand synchronization signal block, a frequency of an on-demand synchronization signal block, a frequency domain offset of an on-demand synchronization signal block, a transmission power of an on-demand synchronization signal block, a time domain offset of an on-demand synchronization signal block, a secondary cell activation indication, an on-demand synchronization signal block index in a synchronization signal block burst set, a period of an on-demand synchronization signal block, an on-demand synchronization signal block activation indication, a maximum number of transmissions N of an on-demand synchronization signal block, and an on-demand synchronization signal block deactivation timer;

[0496] The media access control information element includes at least one of a secondary cell activation and / or deactivation indication, an on-demand synchronization signal block activation and / or deactivation indication, a tracking reference signal indication, a time domain offset of the on-demand synchronization signal block, and an on-demand synchronization signal block index in a synchronization signal block burst set;

[0497] The downlink control information includes at least one of the period of the on-demand synchronization signal block, the activation and / or deactivation indication of the on-demand synchronization signal block, the secondary cell index, the on-demand synchronization signal block index in the synchronization signal block burst set, and the time domain offset of the on-demand synchronization signal block.

[0498] Optionally, transmitting an on-demand synchronization signal block based on downlink information includes at least one of the following:

[0499] In response to receiving downlink information including an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, starting to transmit an on-demand synchronization signal block at a first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment;

[0500] After starting to transmit the on-demand synchronization signal block, transmit the on-demand synchronization signal block using the frequency domain position of the on-demand synchronization signal block determined based on the downlink information, and / or periodically transmit the on-demand synchronization signal block based on the period of the on-demand synchronization signal block in the downlink information;

[0501] In response to the first condition being met, transmission of the on-demand synchronization signal block is stopped.

[0502] Optionally, the device further comprises at least one of the following:

[0503] The value of T is related to the delay of the radio resource control process;

[0504] The value of T is related to the first time;

[0505] The value of T is related to the status of the secondary cell;

[0506] The value of T is related to the subcarrier spacing of the physical uplink control channel;

[0507] The value of T is an integer greater than or equal to 0;

[0508] The first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information;

[0509] The first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; the deactivation timer of the on-demand synchronization signal block times out; a media access control information element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

[0510] Optionally, the device further comprises at least one of the following:

[0511] The first time is the time from receiving the physical downlink shared channel carrying the radio resource control message to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation;

[0512] The first time is the time from receiving the physical downlink shared channel carrying the media access control information element to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation;

[0513] The secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

[0514] Optionally, the device further comprises at least one of the following:

[0515] Transmitting an on-demand synchronization signal block based on a radio resource control message, applicable to the first configuration phase and / or the second configuration phase of the secondary cell;

[0516] Transmitting an on-demand synchronization signal block based on a media access control information element, applicable to the first configuration phase and / or the second configuration phase of the secondary cell;

[0517] Controlling the transmission of synchronization signal blocks based on downlink control information is applicable to the first configuration stage and / or the third configuration stage of the secondary cell.

[0518] Optionally, the device further comprises at least one of the following:

[0519] The first configuration stage includes: the secondary cell is configured for the terminal device and before the terminal device receives the secondary cell activation command;

[0520] The second configuration phase includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed;

[0521] The third configuration stage includes at least one of the following: after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0522] The processing device provided in the embodiment of the present application has similar implementation principles and beneficial effects to the technical solutions shown in the above-mentioned corresponding method embodiments, and will not be described in detail here.

[0523] Ninth embodiment

[0524] Please refer to Figure 14, which is a second schematic diagram of the structure of the control device provided in an embodiment of the present application. The device can be installed in or is the network device in the above-mentioned method embodiment. The control device shown in Figure 14 can be used to perform some or all of the functions of the method embodiment described in the above embodiment. As shown in Figure 14, the control device 1200 includes:

[0525] The sending module 1201 is used to send downlink information so that the terminal device transmits an on-demand synchronization signal block based on the downlink information.

[0526] Optionally, the downlink information includes at least one of a radio resource control message, a media access control information element, and downlink control information.

[0527] Optionally, the downlink information also includes at least one of the secondary cell index, the subcarrier spacing of the on-demand synchronization signal block, the frequency of the on-demand synchronization signal block, the frequency domain offset of the on-demand synchronization signal block, the transmission power of the on-demand synchronization signal block, the time domain offset of the on-demand synchronization signal block, the secondary cell activation indication, the secondary cell activation and / or deactivation indication, the on-demand synchronization signal block index in the synchronization signal block burst set, the period of the on-demand synchronization signal block, the on-demand synchronization signal block activation indication, the on-demand synchronization signal block activation and / or deactivation indication, the maximum number of transmissions N of the on-demand synchronization signal block, and the on-demand synchronization signal block deactivation timer.

[0528] Optionally, the device further comprises at least one of the following:

[0529] Optionally, the radio resource control message includes at least one of a secondary cell index, a subcarrier spacing of an on-demand synchronization signal block, a frequency of an on-demand synchronization signal block, a frequency domain offset of an on-demand synchronization signal block, a transmission power of an on-demand synchronization signal block, a time domain offset of an on-demand synchronization signal block, a secondary cell activation indication, an on-demand synchronization signal block index in a synchronization signal block burst set, a period of an on-demand synchronization signal block, an on-demand synchronization signal block activation indication, a maximum number of transmissions N of an on-demand synchronization signal block, and an on-demand synchronization signal block deactivation timer;

[0530] The media access control information element includes at least one of a secondary cell activation and / or deactivation indication, an on-demand synchronization signal block activation and / or deactivation indication, a tracking reference signal indication, a time domain offset of the on-demand synchronization signal block, and an on-demand synchronization signal block index in a synchronization signal block burst set;

[0531] The downlink control information includes at least one of the period of the on-demand synchronization signal block, the activation and / or deactivation indication of the on-demand synchronization signal block, the secondary cell index, the on-demand synchronization signal block index in the synchronization signal block burst set, and the time domain offset of the on-demand synchronization signal block.

[0532] Optionally, the terminal device transmits an on-demand synchronization signal block based on the downlink information, including at least one of the following:

[0533] In response to receiving downlink information including an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, the terminal device starts transmitting the on-demand synchronization signal block at a first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment;

[0534] After starting to transmit the on-demand synchronization signal block, the terminal device transmits the on-demand synchronization signal block using the frequency domain position of the on-demand synchronization signal block determined based on the downlink information, and / or periodically transmits the on-demand synchronization signal block based on the period of the on-demand synchronization signal block in the downlink information;

[0535] The terminal device stops transmitting the on-demand synchronization signal block in response to the first condition being met.

[0536] Optionally, the device further comprises at least one of the following:

[0537] The value of T is related to the delay of the radio resource control process;

[0538] The value of T is related to the first time;

[0539] The value of T is related to the status of the secondary cell;

[0540] The value of T is related to the subcarrier spacing of the physical uplink control channel;

[0541] The value of T is an integer greater than or equal to 0;

[0542] The first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information;

[0543] The first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; the deactivation timer of the on-demand synchronization signal block times out; a media access control information element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

[0544] Optionally, the device further comprises at least one of the following:

[0545] The first time is the time from receiving the physical downlink shared channel carrying the radio resource control message to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation;

[0546] The first time is the time from receiving the physical downlink shared channel carrying the media access control information element to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation;

[0547] The secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

[0548] Optionally, the device further comprises at least one of the following:

[0549] Transmitting an on-demand synchronization signal block based on a radio resource control message, applicable to the first configuration phase and / or the second configuration phase of the secondary cell;

[0550] Transmitting an on-demand synchronization signal block based on a media access control information element, applicable to the first configuration phase and / or the second configuration phase of the secondary cell;

[0551] Controlling the transmission of synchronization signal blocks based on downlink control information is applicable to the first configuration stage and / or the third configuration stage of the secondary cell.

[0552] Optionally, the device further comprises at least one of the following:

[0553] The first configuration stage includes: the secondary cell is configured for the terminal device and before the terminal device receives the secondary cell activation command;

[0554] The second configuration phase includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed;

[0555] The third configuration stage includes at least one of the following: after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

[0556] The processing device provided in the embodiment of the present application has similar implementation principles and beneficial effects to the technical solutions shown in the above-mentioned corresponding method embodiments, and will not be described in detail here.

[0557] Refer to Figure 15, which is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. As shown in Figure 15, the communication device 160 described in this embodiment can be the terminal device (or component that can be used for a terminal device) or network device (or component that can be used for a network device) mentioned in the aforementioned method embodiment. Communication device 160 can be used to implement the methods corresponding to the terminal device or network device described in the aforementioned method embodiment. For details, please refer to the description of the aforementioned method embodiment.

[0558] The communication device 160 may include one or more processors 161, also referred to as processing units, which may perform certain control or processing functions. Processor 161 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, while the central processing unit may be used to control the communication device, execute software programs, and process software program data.

[0559] Optionally, the processor 161 may also store instructions 163 or data (eg, intermediate data). Optionally, the instructions 163 may be executed by the processor 161 to enable the communication device 160 to execute the method corresponding to the terminal device or network device described in the above method embodiment.

[0560] Optionally, the communication device 160 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments.

[0561] Optionally, the communication device 160 may include one or more memories 162 , on which instructions 164 may be stored. The instructions may be executed on the processor 161 , so that the communication device 160 performs the method described in the above method embodiment.

[0562] Optionally, data may also be stored in the memory 162. The processor 161 and the memory 162 may be provided separately or integrated together.

[0563] Optionally, the communication device 160 may further include a transceiver 165 and / or an antenna 166. The processor 161 may be referred to as a processing unit, and controls the communication device 160 (terminal device, core network device, or wireless access network device). The transceiver 165 may be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, and is used to implement the transceiver functions of the communication device 160.

[0564] Optionally, if the communication device 160 is used to implement operations corresponding to the terminal device in the above embodiments, for example, the transceiver 165 can receive downlink information; and the processor 161 can transmit an on-demand synchronization signal block based on the downlink information.

[0565] Optionally, the specific implementation process of the processor 161 and the transceiver 165 can refer to the relevant description of the above embodiments, which will not be repeated here.

[0566] Optionally, if the communication device 160 is used to implement operations corresponding to the network devices in the above embodiments, for example: the transceiver 165 can send downlink information for the terminal device to transmit on-demand synchronization signal blocks based on the downlink information.

[0567] Optionally, the specific implementation process of the processor 161 and the transceiver 165 can refer to the relevant description of the above embodiments, which will not be repeated here.

[0568] The processor 161 and transceiver 165 described in this application may be implemented on an IC (Integrated Circuit), an analog integrated circuit, an RFIC (Radio Frequency Integrated Circuit), a mixed-signal integrated circuit, an ASIC (Application Specific Integrated Circuit), a PCB (Printed Circuit Board), an electronic device, etc. The processor 161 and transceiver 165 may also be manufactured using various integrated circuit process technologies, such as CMOS (Complementary Metal Oxide Semiconductor), NMOS (N Metal-Oxide-Semiconductor), PMOS (Positive Channel Metal Oxide Semiconductor), BJT (Bipolar Junction Transistor), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0569] In this application, a communication device may be a terminal device (such as a mobile phone) or a network device (such as a base station), and the specific definition needs to be determined based on the context. In addition, the terminal device can be implemented in various forms. For example, the terminal devices described in this application may include mobile terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminal devices such as digital TVs and desktop computers.

[0570] Although the communication device is described above by taking a terminal device or a network device as an example, the scope of the communication device described in this application is not limited to the above-mentioned terminal device or network device, and the structure of the communication device may not be limited to Figure 15. The communication device may be an independent device or may be part of a larger device.

[0571] An embodiment of the present application further provides a communication system, including: a terminal device as in any of the above embodiments; and a network device as in any of the above embodiments.

[0572] An embodiment of the present application further provides a communication device, including a memory and a processor. The memory stores a processing program, and when the processing program is executed by the processor, the steps of the control method in any of the above embodiments are implemented.

[0573] The communication device in this application can be a terminal device (such as a mobile phone) or a network device (such as a base station). The specific reference needs to be clarified based on the context.

[0574] An embodiment of the present application further provides a computer-readable storage medium, on which a processing program is stored. When the processing program is executed by a processor, the steps of the control method in any of the above embodiments are implemented.

[0575] In the embodiments of the communication device and computer-readable storage medium provided in the embodiments of the present application, all technical features of any of the above-mentioned control method embodiments may be included. The expanded and explained contents of the specification are basically the same as those of the embodiments of the above-mentioned methods and will not be repeated here.

[0576] An embodiment of the present application further provides a computer program product, which includes computer program code. When the computer program code runs on a computer, the computer executes the methods in the various possible implementation modes described above.

[0577] An embodiment of the present application also provides a chip, including a memory and a processor, wherein the memory is used to store computer programs, and the processor is used to call and run the computer programs from the memory, so that a device equipped with the chip executes the methods in the various possible implementation modes as described above.

[0578] It is understood that the above scenarios are merely examples and do not limit the application scenarios of the technical solutions provided in the embodiments of this application. The technical solutions of this application can also be applied to other scenarios. For example, those skilled in the art will appreciate that with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application will also be applicable to similar technical problems.

[0579] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0580] The steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs.

[0581] The units in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0582] In this application, the same or similar terminology, technical solutions and / or application scenario descriptions are generally only described in detail the first time they appear. When they appear again later, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of this application, for the same or similar terminology, technical solutions and / or application scenario descriptions that are not described in detail later, you can refer to the previous relevant detailed descriptions.

[0583] In this application, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0584] The various technical features of the technical solution of this application can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0585] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as above, and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, controlled terminal device, or network device, etc.) to execute the method of each embodiment of the present application.

[0586] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can 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 process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a storage medium or transmitted from one storage medium to another storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium can be a magnetic medium (e.g., a floppy disk, a storage disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state storage disk Solid State Disk (SSD)).

[0587] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A control method, wherein: Applied to terminal equipment, including the steps of: S2: Transmits on-demand synchronization signal blocks based on downlink information.

2. The method of claim 1, wherein: The downlink information includes at least one of a radio resource control message, a media access control information element and downlink control information.

3. The method of claim 2, wherein: Include at least one of the following: The radio resource control message includes at least one of a secondary cell index, a subcarrier spacing of an on-demand synchronization signal block, a frequency of an on-demand synchronization signal block, a frequency domain offset of an on-demand synchronization signal block, a transmission power of an on-demand synchronization signal block, a time domain offset of an on-demand synchronization signal block, a secondary cell activation indication, an on-demand synchronization signal block index in a synchronization signal block burst set, a period of an on-demand synchronization signal block, an on-demand synchronization signal block activation indication, a maximum number of transmission times N of an on-demand synchronization signal block, and an on-demand synchronization signal block deactivation timer; The media access control information element includes at least one of a secondary cell activation and / or deactivation indication, an on-demand synchronization signal block activation and / or deactivation indication, a tracking reference signal indication, a time domain offset of an on-demand synchronization signal block, and an on-demand synchronization signal block index in a synchronization signal block burst set; The downlink control information includes at least one of the period of the on-demand synchronization signal block, the activation and / or deactivation indication of the on-demand synchronization signal block, the secondary cell index, the on-demand synchronization signal block index in the synchronization signal block burst set, and the time domain offset of the on-demand synchronization signal block.

4. The method of claim 3, wherein: Step S2 includes at least one of the following: In response to receiving downlink information including an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, starting to transmit an on-demand synchronization signal block at a first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment; After starting to transmit the on-demand synchronization signal block, transmitting the on-demand synchronization signal block by using the frequency domain position of the on-demand synchronization signal block determined based on the downlink information, and / or periodically transmitting the on-demand synchronization signal block based on the period of the on-demand synchronization signal block in the downlink information; In response to satisfying the first condition, transmission of the on-demand synchronization signal block is stopped.

5. The method of claim 4, wherein: Also includes at least one of the following: The value of T is related to the delay of the radio resource control process; The value of T is related to the first time; The value of T is related to the state of the secondary cell; The value of T is related to the subcarrier spacing of the physical uplink control channel; The value of T is an integer greater than or equal to 0; The first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information; The first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; The deactivation timer of the on-demand synchronization signal block times out; a media access control element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

6. The method of claim 5, wherein: Also includes at least one of the following: The first time is the time from receiving the physical downlink shared channel carrying the radio resource control message to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation; The first time is the time from receiving the physical downlink shared channel carrying the media access control information element to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation; The secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

7. The method of claim 2, wherein: Also includes at least one of the following: Transmitting an on-demand synchronization signal block based on a radio resource control message, applicable to a first configuration phase and / or a second configuration phase of a secondary cell; Transmitting an on-demand synchronization signal block based on a media access control information element, applicable to a first configuration phase and / or a second configuration phase of a secondary cell; Controlling transmission of synchronization signal blocks based on downlink control information is applicable to the first configuration stage and / or the third configuration stage of the secondary cell.

8. The method of claim 7, wherein: Also includes at least one of the following: The first configuration stage includes: the secondary cell is configured to the terminal device and before the terminal device receives a secondary cell activation command; The second configuration stage includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed; The third configuration stage includes at least one of the following: from the time when the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

9. A control method, wherein: Applied to network equipment, including the steps of: S1: Send downlink information to enable the terminal device to transmit an on-demand synchronization signal block based on the downlink information.

10. The method of claim 9, wherein: The downlink information includes at least one of a radio resource control message, a media access control information element and downlink control information.

11. The method of claim 10, wherein: Include at least one of the following: The radio resource control message includes at least one of a secondary cell index, a subcarrier spacing of an on-demand synchronization signal block, a frequency of an on-demand synchronization signal block, a frequency domain offset of an on-demand synchronization signal block, a transmission power of an on-demand synchronization signal block, a time domain offset of an on-demand synchronization signal block, a secondary cell activation indication, an on-demand synchronization signal block index in a synchronization signal block burst set, a period of an on-demand synchronization signal block, an on-demand synchronization signal block activation indication, a maximum number of transmission times N of an on-demand synchronization signal block, and an on-demand synchronization signal block deactivation timer; The media access control information element includes at least one of a secondary cell activation and / or deactivation indication, an on-demand synchronization signal block activation and / or deactivation indication, a tracking reference signal indication, a time domain offset of an on-demand synchronization signal block, and an on-demand synchronization signal block index in a synchronization signal block burst set; The downlink control information includes at least one of the period of the on-demand synchronization signal block, the activation and / or deactivation indication of the on-demand synchronization signal block, the secondary cell index, the on-demand synchronization signal block index in the synchronization signal block burst set, and the time domain offset of the on-demand synchronization signal block.

12. The method of claim 11, wherein: The terminal device transmits an on-demand synchronization signal block based on downlink information, including at least one of the following: In response to receiving downlink information including an activation and / or deactivation indication of an on-demand synchronization signal block at a first moment, the terminal device starts transmitting an on-demand synchronization signal block at a first candidate position of the on-demand synchronization signal block after T time slots or symbols accumulated from the first moment; After starting to transmit the on-demand synchronization signal block, the terminal device transmits the on-demand synchronization signal block through the frequency domain position of the on-demand synchronization signal block determined based on the downlink information, and / or periodically transmits the on-demand synchronization signal block based on the period of the on-demand synchronization signal block in the downlink information; In response to satisfying the first condition, the terminal device stops transmitting the on-demand synchronization signal block.

13. The method of claim 12, wherein: Also includes at least one of the following: The value of T is related to the delay of the radio resource control process; The value of T is related to the first time; The value of T is related to the state of the secondary cell; The value of T is related to the subcarrier spacing of the physical uplink control channel; The value of T is an integer greater than or equal to 0; The first candidate position of the on-demand synchronization signal block is determined based on the first rule and / or the time domain offset of the on-demand synchronization signal block in the downlink information; The first condition is met, including at least one of the following: the number of transmissions of the on-demand synchronization signal block meets the maximum number of transmissions configured in the downlink information; The deactivation timer of the on-demand synchronization signal block times out; a media access control element containing an activation and / or deactivation indication of the on-demand synchronization signal block is received; downlink control information containing an activation and / or deactivation indication of the on-demand synchronization signal block is received.

14. The method of claim 13, wherein: Also includes at least one of the following: The first time is the time from receiving the physical downlink shared channel carrying the radio resource control message to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation; The first time is the time from receiving the physical downlink shared channel carrying the media access control information element to sending the physical uplink control channel carrying the corresponding hybrid automatic repeat request confirmation; The secondary cell status includes the secondary cell being known and / or the secondary cell being unknown.

15. The method of claim 10, wherein: Also includes at least one of the following: Transmitting an on-demand synchronization signal block based on a radio resource control message, applicable to a first configuration phase and / or a second configuration phase of a secondary cell; Transmitting an on-demand synchronization signal block based on a media access control information element, applicable to a first configuration phase and / or a second configuration phase of a secondary cell; Controlling transmission of synchronization signal blocks based on downlink control information is applicable to the first configuration stage and / or the third configuration stage of the secondary cell.

16. The method of claim 15, wherein: Also includes at least one of the following: The first configuration stage includes: the secondary cell is configured to the terminal device and before the terminal device receives a secondary cell activation command; The second configuration stage includes at least one of the following: when the terminal device receives the secondary cell activation command; after the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed; The third configuration stage includes at least one of the following: from the time when the terminal device receives the secondary cell activation command until the secondary cell activation is completed; when the secondary cell is activated and the secondary cell activation is completed; after the secondary cell is activated and the secondary cell activation is completed.

17. A communication device, wherein: include: A memory, a processor, and a control program stored in the memory and executable on the processor, wherein the control program is executed by the processor to implement the steps of the control method as claimed in claim 1 or 9.

18. A computer-readable storage medium, wherein: The computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the control method according to claim 1 or 9.

Images