Synchronization information block transmission method and related device

Abstract

The present disclosure relates to the technical field of communications, and provides a synchronization information block transmission method and a related device. The method comprises: sending synchronization information block sending indication signaling to a terminal, wherein the synchronization information block sending indication signaling is used for adjusting a synchronization information block sending state.

Description

Transmission method of synchronization information block and related device

[0001] Cross-reference to related applications

[0002] The present disclosure claims priority to the Chinese patent application No. 2024110968582, filed on August 9, 2024, entitled "Transmission method of synchronization information block and related device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the field of communication technology, and in particular, to a transmission method of synchronization information block, a network device, a terminal, a communication system, a communication device, a computer readable storage medium and a computer program product. BACKGROUND

[0004] In order to reduce the number of signals online for a long time, the PBCH (Physical Broadcast Channel) and the synchronization signal are packaged into an SSB (Synchronization Signal / PBCH Block) in the NR (New Radio) system, which is used for the initial cell search process of the UE (User Equipment, also known as user terminal, terminal device or terminal). The SSB contains 3 parts: PSS (Primary Synchronization Signal / primary synchronization sequence), SSS (Secondary Synchronization Signal / secondary synchronization sequence) and physical broadcast channel PBCH. The PBCH block contains information such as MIB (Master Information Block) to indicate the position of SIB1 (system information block 1) and other most important system information. The SSB occupies 4 OFDM (Orthogonal Frequency Division Multiplexing) symbols in the time domain and 20 PRBs (Physical Resource Block) in the frequency domain, i.e. 240 subcarriers. SUMMARY

[0005] The embodiment of the present disclosure provides a transmission method of synchronization information block, the method comprises: sending synchronization information block sending indication signaling to a terminal, the synchronization information block sending indication signaling is used for realizing adjustment of synchronization information block sending state. In an exemplary embodiment, the method can be executed by a network device (for example, a base station), or the method is executed by an apparatus (for example, a chip, etc.) configured to the network device.

[0006] The embodiment of the present disclosure provides a transmission method of synchronization information block, the method comprises: receiving synchronization information block sending indication signaling, the synchronization information block sending indication signaling is used for realizing adjustment of synchronization information block receiving state. In an exemplary embodiment, the method can be executed by a terminal, or the method can be executed by an apparatus (for example, a chip, etc.) configured to the terminal.

[0007] The embodiment of the present disclosure provides a network device, comprising: a sending unit, configured to send synchronization information block sending indication signaling to a terminal, the synchronization information block sending indication signaling is used for realizing adjustment of synchronization information block sending state.

[0008] The embodiment of the present disclosure provides a terminal, comprising: a receiving unit, configured to receive synchronization information block sending indication signaling, the synchronization information block sending indication signaling is used for realizing adjustment of synchronization information block receiving state.

[0009] The embodiment of the present disclosure provides a communication system, comprising: the network device according to any one of the embodiments of the present disclosure and the terminal according to any one of the embodiments of the present disclosure.

[0010] The embodiment of the present disclosure provides a communication device, in one design, the communication device can comprise a module corresponding to the method / operation / step / action described in any one of the embodiments of the present disclosure, the module can be a hardware circuit, can be software, or can be a combination of hardware circuit and software. In one design, the communication device comprises: a sending unit, configured to send synchronization information block sending indication signaling to a terminal, the synchronization information block sending indication signaling is used for realizing adjustment of synchronization information block sending state. In another design, the communication device comprises: a receiving unit, configured to receive synchronization information block sending indication signaling, the synchronization information block sending indication signaling is used for realizing adjustment of synchronization information block receiving state.

[0011] The communication apparatus provided in the embodiments of the present disclosure includes a processor. The processor can implement the method in any of the embodiments of the present disclosure. Optionally, the communication apparatus further includes a memory, and the processor is coupled to the memory and used to execute a computer program in the memory to implement the method in any of the embodiments of the present disclosure. Optionally, the communication apparatus further includes a communication interface, and the processor is coupled to the communication interface. In the embodiments of the present disclosure, the communication interface can be a transceiver, a pin, a circuit, a bus, a module or other types of communication interfaces, which are not limited herein.

[0012] In an implementation manner, the communication apparatus is a terminal. When the communication apparatus is the terminal, the communication interface can be a transceiver or an input / output interface.

[0013] In another implementation manner, the communication apparatus is a chip configured in the terminal. When the communication apparatus is the chip configured in the terminal, the communication interface can be an input / output interface.

[0014] Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0015] In an implementation manner, the communication apparatus is a network device. When the communication apparatus is the network device, the communication interface can be a transceiver or an input / output interface.

[0016] In another implementation manner, the communication apparatus is a chip configured in the network device. When the communication apparatus is the chip configured in the network device, the communication interface can be an input / output interface.

[0017] The embodiments of the present disclosure further provide a processor including an input circuit, an output circuit and a processing circuit. The processing circuit is used to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any of the embodiments of the present disclosure.

[0018] In the example embodiments, the processor can be one or more chips, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a flip-flop, various logic circuits and the like. The input signal received by the input circuit can be received and input by, for example but not limited to, a receiver, the signal output by the output circuit can be output to and transmitted by, for example but not limited to, a transmitter, and the input circuit and the output circuit can be the same circuit which is used as the input circuit and the output circuit at different times. The embodiments of the present disclosure do not limit the specific implementation manners of the processor and various circuits.

[0019] The embodiments of the present disclosure further provide a communication system including at least one communication apparatus in the embodiments of the present disclosure.

[0020] The embodiment of the present disclosure provides a communication device, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute the transmission method of the synchronization information block in any embodiment of the present disclosure via executing the executable instructions.

[0021] The embodiment of the present disclosure provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the transmission method of the synchronization information block in any embodiment of the present disclosure.

[0022] The embodiment of the present disclosure provides a computer program product, which comprises a computer program, and the computer program is executed by a processor to implement the transmission method of the synchronization information block in any embodiment of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0024] FIG. 1 shows a structural schematic diagram of a communication system in an embodiment of the present disclosure.

[0025] FIG. 2 shows a flow chart of a transmission method of a synchronization information block in an embodiment of the present disclosure.

[0026] FIG. 3 shows a schematic diagram of a transmission method of a synchronization information block in an embodiment of the present disclosure.

[0027] FIG. 4 shows a schematic diagram of another transmission method of a synchronization information block in an embodiment of the present disclosure.

[0028] FIG. 5 shows a flow chart of another transmission method of a synchronization information block in an embodiment of the present disclosure.

[0029] FIG. 6 shows a structural block diagram of a network device in an embodiment of the present disclosure.

[0030] FIG. 7 shows a structural block diagram of a terminal in an embodiment of the present disclosure.

[0031] FIG. 8 shows a structural block diagram of a communication device in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] Example implementations are now described with reference to the drawings. Example implementations can, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example implementations to those skilled in the art. The described features, structures, or characteristics can be combined in one or more implementations.

[0033] In addition, the accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification. The drawings illustrate examples of the present disclosure and, as such, a change can be made in the size or proportions of some of the elements in the drawings. Identical components are designated with identical reference numbers throughout the various drawings. In the drawings:

[0034] In the present disclosure, at least one (item) can be described as one (item) or multiple (items), and the multiple (items) can be two (items), three (items), four (items), or more (items) without limitation. " / " can represent that the objects before and after the " / " are in an "or" relationship, for example, A / B can represent A or B; "and / or" can be used to describe the existence of three relationships of associated objects, for example, A and / or B, which can represent three cases of A existing alone, A and B existing together, and B existing alone, where A and B can be singular or plural. In order to facilitate the description of the technical solutions of the present application, "first", "second", "A", or "B" and the like can be used to distinguish functionally identical or similar technical features. The "first", "second", "A", or "B" and the like do not limit the quantity and execution order. In addition, the "first", "second", "A", or "B" and the like do not necessarily mean different. The words "exemplary" or "for example" are used to mean example, illustration, or description, and any design solution described as "exemplary" or "for example" should not be interpreted as more preferred or more advantageous than other design solutions. The words "exemplary" or "for example" are intended to present the relevant concept in a specific manner for understanding.

[0035] The specific implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0036] As shown in FIG. 1, the communication system architecture includes a radio access network and a core network. The radio access network can include at least one radio access network device (such as network device 20 in FIG. 1), and can also include at least one terminal (such as terminal 10 in FIG. 1). The terminal is connected to the radio access network device in a wireless manner, and the radio access network device is connected to the core network in a wireless or wired manner. The core network device and the radio access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the radio access network device can be integrated on the same physical device, or a physical device can integrate part of the functions of the core network device and part of the functions of the radio access network device. The terminals can be connected to each other in a wired or wireless manner, and the radio access network devices can be connected to each other in a wired or wireless manner. FIG. 1 is only a schematic diagram, and the communication system can also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1.

[0037] The network device 20 can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5th generation (5G) mobile communication system, a next generation NodeB in a 6th generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; it can also be a module or unit that completes part of the functions of a base station, for example, it can be a central unit (CU), or a distributed unit (DU). The network device 20 can be a macro base station, or a micro base station or an indoor station, or a relay node or a donor node, etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the network device 20. For ease of description, the following describes the base station as an example of the network device 20.

[0038] The terminal 10 can also be referred to as a terminal device, a user equipment (UE), a mobile station, a mobile terminal, etc. The terminal can be widely applied to various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. Embodiments of the present disclosure do not limit the specific technology and specific device form of the terminal.

[0039] The base station and the terminal can be fixed in position or mobile. The base station and the terminal can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water surface; can also be deployed on an airplane, a balloon and a man-made satellite. Embodiments of the present disclosure do not limit the application scenarios of the base station and the terminal.

[0040] The roles of the base station and the terminal can be relative, for example, a helicopter or a drone can be configured as a mobile base station, and for those terminals accessing to the wireless access network through the helicopter or the drone, the helicopter or the drone is a base station; but for the base station, the helicopter or the drone is a terminal, that is, the base station and the helicopter or the drone communicate with each other through a wireless air interface protocol. Of course, the base station and the helicopter or the drone can also communicate with each other through an interface protocol between base stations, and in this case, the helicopter or the drone is also a base station relative to the base station. Therefore, the base station and the terminal can be collectively referred to as a communication apparatus / communication device, the network device 20 in FIG. 1 can be referred to as a communication apparatus / communication device with base station function, and the terminal 10 in FIG. 1 can be referred to as a communication apparatus / communication device with terminal function.

[0041] The base station and the terminal, the base station and the base station, and the terminal and the terminal can communicate with each other through a licensed spectrum, through an unlicensed spectrum, or through both the licensed spectrum and the unlicensed spectrum; can communicate through a spectrum below 6 gigahertz (GHz), through a spectrum above 6 GHz, or through both the spectrum below 6 GHz and the spectrum above 6 GHz. Embodiments of the present disclosure do not limit the spectrum resources used for wireless communication.

[0042] In embodiments of the present disclosure, the functions of the base station can also be performed by a module (such as a chip) in the base station, or by a control subsystem containing the functions of the base station. The control subsystem containing the functions of the base station herein can be a control center in the above-mentioned application scenarios such as smart grid, industrial control, intelligent transportation, and smart city. The functions of the terminal can also be performed by a module (such as a chip or modem) in the terminal, or by a device containing the functions of the terminal.

[0043] The technical solutions provided by the embodiments of the present disclosure can be applied to wireless communication between communication devices. The wireless communication between communication devices can include wireless communication between network devices and terminals, wireless communication between network devices and network devices, and wireless communication between terminals and terminals. In the embodiments of the present disclosure, the term "wireless communication" can also be referred to as "communication", and the term "communication" can also be described as "data transmission", "information transmission", or "transmission".

[0044] Those skilled in the art can know that the number of terminals and network devices in FIG. 1 is only illustrative, and any number of terminals and network devices can be provided according to actual needs. The embodiments of the present disclosure do not limit this.

[0045] Under the above system architecture, a synchronization information block transmission method is provided in the embodiments of the present disclosure, which can be executed by any communication device with information processing capability. In some embodiments, the synchronization information block transmission method provided in the embodiments of the present disclosure can be executed by the terminal of the above-mentioned system architecture; in other embodiments, the synchronization information block transmission method provided in the embodiments of the present disclosure can be implemented by the network device in the above-mentioned system architecture. In still other embodiments, the synchronization information block transmission method provided in the embodiments of the present disclosure can be implemented by the terminal and the network device in the above-mentioned system architecture through interaction.

[0046] FIG. 2 shows a flowchart of a synchronization information block transmission method according to an embodiment of the present disclosure. The method provided in the embodiment of FIG. 2 can be executed by a network device, which can be a base station for example, but the present disclosure is not limited thereto. As shown in FIG. 2, the method provided in the embodiments of the present disclosure can include the following steps.

[0047] In S210, synchronization information block transmission indication signaling is sent to the terminal, and the synchronization information block transmission indication signaling is used to realize adjustment of the synchronization information block transmission state.

[0048] It can be understood that the naming of the "synchronization information block transmission indication signaling" in the embodiments of the present disclosure is not limited as long as it can be used to indicate that the network device adjusts the transmission state of the synchronization information block. The synchronization information block transmission indication signaling can be included in the existing signaling / instruction, or can be implemented by adding new signaling. When the synchronization information block transmission indication signaling is sent from the network device to the terminal, it is a downlink signaling, and therefore it can also be called "downlink signal / signaling / instruction / command".

[0049] In the embodiments of the present disclosure, the adjustment of the SSB transmission state includes adjustment of the SSB transmission period, or turning on or turning off of the SSB transmission state.

[0050] In the example embodiments, the synchronization information block transmission indication signaling includes a synchronization information block switching indication (SSB switching indication, hereinafter abbreviated as SSI), which is used to adjust the transmission period of the synchronization information block, or to turn on or turn off the transmission state of the synchronization information block.

[0051] In the example embodiments, when the secondary cell connected with the terminal is configured with a synchronization information block period, the value of the synchronization information block switching indication is used to adjust the transmission period of the synchronization information block.

[0052] In the example embodiments, the terminal is connected with a primary cell and a secondary cell.

[0053] Since the logical cell is actually distinguished by a carrier, the meanings of the concepts of "cell", "carrier", "cell carrier", and "carrier of the cell" in the embodiments of the present disclosure are the same and can be used interchangeably.

[0054] The method provided by the embodiments of the present disclosure can be used in a multi-carrier scenario in which a terminal is connected with multiple cells simultaneously, and is applicable to a multi-carrier scenario. That is, the present disclosure can be applied to a CA (Carrier Aggregation) scenario. For example, the terminal accesses two or more cells simultaneously, one of which is called a primary cell and can also be represented as a PCell, and the others can be called secondary cells and can also be represented as SCells. The PCell undertakes the functions of the control plane and the data plane, and the SCell only undertakes the function of the data plane. Specifically, it can be divided into intra-band and inter-band modes. In some embodiments, the method provided by the embodiments of the present disclosure can also be applicable to a single-carrier scenario, that is, a scenario in which the terminal is connected with only one cell carrier.

[0055] When the terminal is in a carrier aggregation state, since it must maintain a connection with a primary cell carrier, signal transmission on part of the secondary cell carrier can be selectively reduced to reduce network energy consumption of the secondary cell carrier while maintaining network performance. To achieve network energy saving, SSB-less technology can be introduced in some embodiments, i.e., completely stopping transmitting SSB on the secondary cell carrier, relying on the SSB on the primary cell carrier to achieve synchronization and access related requirements of the secondary cell carrier.

[0056] However, in some scenarios, especially inter-band CA, due to the large carrier gap between the primary cell and the secondary cell, SSB-less technology can cause network performance degradation. At this time, further introducing on-demand SSB technology can effectively reduce SSB transmission while ensuring the performance of the secondary cell while achieving network energy saving.

[0057] In an example embodiment, the value of the synchronization information block switching indication corresponds to the value of the configured corresponding synchronization information block period.

[0058] In an example embodiment, the synchronization information block period is included in a synchronization information block period list (SSB periodicity list).

[0059] In an example embodiment, when the value of the synchronization information block switching indication is not configured, the transmission period of the synchronization information block is maintained.

[0060] In an example embodiment, when a synchronization information block period is configured for a secondary cell connected to the terminal, a first value or default of the synchronization information block switching indication is used to indicate that the transmission period of the synchronization information block is maintained, and a second value of the synchronization information block switching indication is used to indicate that the synchronization information block is adjusted to be transmitted using the configured synchronization information block period.

[0061] In an example embodiment, when the synchronization information block in the secondary cell connected to the terminal is configured as an on-demand synchronization information block, the synchronization information block switching indication is used to indicate whether the on-demand synchronization information block is transmitted.

[0062] In the embodiments of the present disclosure, on-demand refers to that a SSB sender (for example, a base station) sends a corresponding SSB signal at any time / just in time to meet the demand according to the demand of a communication system or a SSB receiver (for example, a terminal). This signal transmission mode of on-demand transmission of SSBs can be applied to the NR system and is a signal transmission mode in the NR, but the present disclosure is not limited thereto. The transmission of SSB triggered on-demand refers to a transmission mode different from the transmission of SSB according to a default period (for example, 20 ms). When the base station determines to send the SSB to the UE on-demand instead of sending the SSB to the UE according to the default period, the base station can send the SSB to the UE on-demand. By introducing a dynamic adjustment mechanism of SSB and other common signals / periodic signals, the transmission of common signals is reduced, thereby achieving network energy saving.

[0063] It should be noted that the SSB triggered for transmission on-demand can be periodically sent, and the period of the SSB triggered for transmission on-demand can not be equal to the above-mentioned default period; or the SSB triggered for transmission on-demand can not be periodically sent, for example, only one SSB is triggered for transmission.

[0064] In the example embodiments, when the synchronization information block switching indication takes a first value (for example, 0, but the present disclosure is not limited thereto), the on-demand synchronization information block is not sent to the secondary cell connected with the terminal; and when the synchronization information block switching indication takes a second value (for example, 1, but the present disclosure is not limited thereto), the on-demand synchronization information block is sent to the secondary cell connected with the terminal.

[0065] In the embodiments of the present disclosure, the base station can indicate the terminal to detect the SSB according to a configuration (which can be configured by the base station to the terminal or can be agreed according to a protocol, and the present disclosure does not limit the same) by sending the synchronization information block switching indication to the terminal. After the UE receives the synchronization information block switching indication, if the synchronization information block switching indication takes a first value, the detection of the on-demand SSB is not needed. If the synchronization information block switching indication takes a second value, the terminal can know that the base station will start to send the SSB on-demand, at this time, if the UE has received the configuration from the base station, the SSB triggered by the base station on-demand can be detected based on the received configuration. If the UE does not receive the configuration sent by the base station, the UE can detect the SSB triggered by the base station on-demand based on the agreement of the protocol or the predetermined configuration (for example, the default period is 20 ms).

[0066] In the example embodiments, the method provided by the embodiments of the present disclosure further includes: starting a timer after sending the synchronization information block switching indication taking the second value to the terminal; and stopping the transmission of the on-demand synchronization information block if the timer is timed out.

[0067] In an example embodiment, if a last time is configured for the synchronization information block, the timing of the timer is compared with the last time to determine whether the timer is expired.

[0068] In an example embodiment, the method provided by the embodiments of the present disclosure further includes: if the timer is not expired and the synchronization information block switching indication with the first value is sent to the terminal within the last time, the sending of the on-demand synchronization information block is stopped.

[0069] In an example embodiment, when the value of the synchronization information block switching indication is not configured, it is indicated to maintain the sending state of the on-demand synchronization information block.

[0070] In an example embodiment, the synchronization information block switching indication is located in downlink signaling.

[0071] In an example embodiment, the downlink signaling includes Downlink Control Information (DCI) and Media Access Control Control Element (MAC CE).

[0072] In an example embodiment, the method provided by the embodiments of the present disclosure further includes: sending a synchronization information block configuration parameter to the terminal. The synchronization information block configuration parameter can be used to configure SSB parameters, for example, configure SSB last time equal to 1s, but the present disclosure is not limited thereto, which is only used for illustration.

[0073] In an example embodiment, when there is a synchronization information block sent in the secondary cell connected with the terminal, the synchronization information block configuration parameter includes one or more synchronization information block periods.

[0074] In an example embodiment, the first synchronization information block period in the configured synchronization information block period is used as the sending period of the synchronization information block.

[0075] In an example embodiment, the synchronization information block configuration parameter includes a synchronization information block period list, and the synchronization information block period list includes one or more synchronization information block periods.

[0076] In an example embodiment, when there is no synchronization information block sent in the secondary cell connected with the terminal, the synchronization information block configuration parameter includes a last sending time configured for the synchronization information block. At this time, it can be defaulted that the SSB is an on-demand SSB.

[0077] In an example embodiment, when there is no synchronization information block transmission in a secondary cell connected with the terminal, the synchronization information block configuration parameter comprises a parameter for indicating that the synchronization information block configuration parameter is for on-demand synchronization information block.

[0078] In the embodiments of the present disclosure, the SSB triggered on demand can be transmitted by the base station to the terminal. For example, at least one of the period length, the time-frequency resource position (including the time domain resource position and / or the frequency domain resource position), and the like of the SSB triggered on demand can be transmitted by the base station to the terminal. The time-frequency resource position is used to configure the time domain position and / or the frequency domain position occupied by the SSB triggered on demand. The base station can transmit the SSB to the terminal at the time-frequency resource position. The terminal can detect the SSB at the time-frequency resource position.

[0079] The method provided by the embodiments of the present disclosure can be applied to the following scenario: the terminal is connected with a primary cell PCell A and a secondary cell SCell B at the same time. The secondary cell has been activated and the terminal accesses the SCell B, but there is no SSB transmission. Therefore, the base station does not need to transmit the SSB to the terminal when there is no demand, and the base station triggers the SSB to be transmitted to the terminal on demand only when there is a demand. Thus, the transmission of the SSB can be reduced, the network energy can be saved, and the performance of the secondary cell can be ensured.

[0080] In the embodiments of the present disclosure, the SSB triggered on demand by the base station is transmitted on the secondary cell. That is, the embodiments of the present disclosure do not completely stop transmitting the SSB on the secondary cell, and the related requirements for synchronization and access of the secondary cell are not dependent on the SSB on the primary cell. Therefore, the requirements of some scenarios can be met, especially for inter-band CA. Although the carrier difference between the primary cell and the secondary cell can be large, the on-demand SSB technology can ensure that the network performance does not decrease while saving the network energy.

[0081] The method provided by the embodiments of the present disclosure provides a flexible dynamic adjustment configuration method and implementation process of the SSB, and the flexible transmission of the synchronization information block can be realized, and the network energy can be saved.

[0082] In a communication network, a synchronization signal block (SSB) is used for terminal synchronization and cell access with a base station, and is an indispensable common signal of the network. In some embodiments, the SSB needs to be periodically transmitted in a broadcast signal for terminal synchronization and access with the base station. That is, the SSB is transmitted in a periodic manner, for example, the SSB is transmitted in a default period. When there is no access and synchronization requirement of a cell user, the periodically transmitted SSB causes unnecessary transmission energy consumption, which leads to high network energy consumption. The energy consumption of a single base station of a 5G network is more than 3 times that of a long term evolution (LTE) network, and due to the higher frequency spectrum and greater density of the 5G network, the total energy consumption of the 5G network is close to 4 times that of the LTE network, and the energy consumption cost accounts for nearly half of the total network operation cost.

[0083] The embodiments of the present disclosure can reduce the transmission of periodic signals (for example, SSB signals transmitted in a default period), thereby reducing the transmission energy consumption of the antenna and the overall network energy consumption. By reducing the overall network energy consumption, especially the energy consumption of a medium and low load network, the operation cost of the network (for example, an NR network) can be reduced. The method provided by the embodiments of the present disclosure can be applied to the field of wireless communication.

[0084] The embodiments of the present disclosure can introduce SSB transmission indication signaling, and enhance the SSB configuration parameters transmitted to the terminal, so as to enhance the SSB configuration. The enhanced SSB configuration parameters can configure multiple SSB periods or indicate the characteristics of the SSB at a time, so as to realize dynamic adjustment of the SSB transmission period and dynamic shutdown of the transmission state by combining the enhanced SSB configuration parameters and the SSB transmission indication signaling.

[0085] The embodiments of the present disclosure can enhance the SSB configuration by the enhanced SSB configuration parameters at least in one of the following two scenarios:

[0086] Scenario one: when there is currently SSB transmission in a cell (for example, a secondary cell connected with a terminal), a SSB periodicity list can be newly configured in addition to the parameters such as the time-frequency domain position of the SSB. One or more SSB periodicities can be configured in the SSB periodicity list. Optionally, the first SSB periodicity in the SSB periodicity list is used as the current SSB transmission period by default.

[0087] Scenario two: when there is no SSB transmitting in the cell (e.g. the secondary cell connected with the terminal), the time-frequency location, periodicity, etc. of the SSB can be reused to complete the configuration of the new SSB. In addition, the maximum transmission time of the SSB can be configured: if the maximum transmission time of the SSB is configured, the SSB can be defaulted as an on-demand SSB; if the parameter (i.e. the maximum transmission time) is not configured, an additional parameter can be introduced to indicate that the SSB is an on-demand SSB. For example, a new RRC (Radio Resource Control) parameter, such as on-demand indication, can be introduced to indicate that the configuration is for an on-demand SSB.

[0088] In an example embodiment, an SSB switching indication can be introduced in the SSB transmission indication signaling. The SSB switching indication can be located in the downlink signaling, such as in the DCI or the MAC CE. Specifically, the SSB switching indication can have the following functions:

[0089] For scenario one: when the SSB of the cell is configured with the SSB periodicity list, the SSB periodicity can be adjusted according to the value of the SSB switching indication. The value of the SSB switching indication corresponds to the specific value of the SSB periodicity in the SSB periodicity list.

[0090] For scenario two: when the SSB in the cell is only an on-demand SSB, the SSB switching indication can be used to indicate whether the SSB is transmitted. For example, when the SSB switching indication = 0, it means that there is no on-demand SSB transmission in the cell; otherwise, it means that the on-demand SSB can be transmitted at this time.

[0091] In an example embodiment, for the introduced SSB switching indication:

[0092] For scenario one, if the parameter is not configured by default, the SSB periodicity is not adjusted by default.

[0093] For scenario two, if the parameter is not configured by default, it also means that the transmission state of the on-demand SSB does not change at this time.

[0094] In an example embodiment, for scenario two, the value of the SSB switching indication is 1 indicates that the on-demand SSB starts to be transmitted, and after the network device sends this indication or the terminal receives this indication, a timer starts to count, and is compared with the configured SSB longest transmission time (if any). If the timer expires, the transmission / reception of the on-demand SSB will be stopped without waiting for the SSB switching indication with a value of 0.

[0095] In an example embodiment, for scenario one, there is a simplified scenario as follows. When the SSB is configured by using the enhanced SSB configuration parameter, only one SSB period is additionally configured, and a whole SSB periodicity list is not configured. At this time, when the SSB period indication is performed, the value 0 or default of the SSB switching indication indicates that the original configured SSB period is used, and the value 1 indicates that the SSB period additionally configured in the enhanced SSB configuration parameter is used.

[0096] The embodiments of the present disclosure propose a flexible SSB dynamic configuration and indication method. On the basis of flexible SSB configuration, SSB dynamic switching indication (namely, SSB switching indication) is introduced. Through such switching indication, the dynamic change of the SSB period and the dynamic switching of the on-demand transmission can be indicated, so that the dynamic adjustment of the SSB and the network energy saving are realized. The method provided by the embodiments of the present disclosure can be applied to a single carrier or a multi-carrier scenario with low load, and in particular, for the multi-carrier scenario, the SSB on the secondary carrier can be dynamically adjusted, so that the network energy saving is realized.

[0097] FIG. 3 shows a schematic diagram of a transmission method of a synchronization information block in an embodiment of the present disclosure. Referring to FIG. 3, the dynamic adjustment of the SSB period is implemented by using the method provided by the embodiments of the present disclosure.

[0098] When the SSB is configured by using the enhanced SSB configuration parameter, the SSB periodicity list is configured as {20 ms, 40 ms, 80 ms, 160 ms}. The SSB is normally transmitted, for example, the SSB is started to be transmitted with a period of 20 ms.

[0099] When the network monitors that the number of users in the target cell (e.g., a secondary cell connected with the terminal) is small (i.e., medium or low load), a 2-bit SSB switching indication (SSI) can be sent in the DCI (such as format 1_1) / MAC CE. If SSI=00, the original transmission period (e.g., 20 ms) is maintained; if SSI=01 / 10 / 11, the SSB period is switched to 40 ms, 80 ms, and 160 ms, respectively. The remaining configuration information remains unchanged.

[0100] FIG. 4 shows a schematic diagram of another transmission method of a synchronization information block in an embodiment of the present disclosure. Referring to FIG. 4, an on-demand fast sending and stopping is implemented by using the method provided in the embodiment of the present disclosure.

[0101] It is assumed that there is no SSB transmission and SSB configuration in a certain cell at present. At this time, a set of SSB parameters (enhanced SSB configuration parameters) can be additionally configured by referring to the configuration parameters of the SSB in the network, and the longest transmission time thereof is additionally configured as 1 s. It can be known that it is an on-demand SSB.

[0102] The terminal takes this cell as an SCell. At this time, there is no on-demand SSB transmission by default due to the absence of SSI indication. Since there is also no always-on legacy SSB (i.e., SSB transmitted according to the default period) transmission at this time, the SCell adopts the SSB-less form at this time.

[0103] When the network needs to send an on-demand SSB in this cell, it only needs to configure SSI=1, and the configured on-demand SSB is sent. At this time, the timer is started on the network side and the terminal side, and whether the indication of SSI=0 is received within the next 1 s is detected. If the indication of SSI=0 is received, the sending and receiving of the SSB are stopped. Otherwise, the sending and detection of the SSB are automatically stopped within 1 s.

[0104] If the indication of SSI=1 is received again within the timer, the timer is reset. The SSB is transmitted according to the new timer condition.

[0105] Due to the fluctuation of network load status, timely reducing the SSB transmission according to the network load status can effectively reduce the network energy efficiency. Specifically, this purpose can be achieved by changing the SSB transmission period or stopping the periodic transmission of SSB. Through an efficient method, the dynamic adjustment of SSB transmission density and quantity can effectively reduce the energy consumption of the network. Even in some scenarios, SSB can be transmitted only when needed. The present disclosure can be used to reduce the network energy consumption problem in the field of wireless communication. The present embodiment does not take different configurations for SSB, and is convenient for switching back to the original configuration and changing.

[0106] In an embodiment of the present disclosure, on the one hand, for legacy SSB, an SSB periodicity list is introduced; for on-demand SSB, the existing configuration parameters are reused, and only auxiliary parameters need to be selectively configured, so as to meet the parameter configuration of dynamic SSB change, and the standard is changed little. On the other hand, the introduction of SSB dynamic switching indication, which is used to indicate the start of SSB dynamic switching, can be used for dynamic change of SSB period, and also can be used for start and stop of SSB transmission. Through the same mechanism, dynamic adjustment of SSB period can be realized, and SSB transmission and termination can also be realized, realizing efficient network energy saving. Specifically, the same mechanism is applied to realize SSB period adjustment and on-demand SSB transmission control. Through an efficient method, SSB transmission period adjustment can effectively reduce the energy consumption of the network. In addition, by introducing the on-demand SSB mode, the network does not need to continuously transmit SSB, and the energy consumption can also be reduced. The present disclosure proposes a method for dynamic adjustment of SSB.

[0107] FIG. 5 shows a flowchart of another synchronization information block transmission method in an embodiment of the present disclosure. The method provided by the embodiment of FIG. 5 can be executed by a terminal. As shown in FIG. 5, the method provided by the embodiment of the present disclosure can include the following steps.

[0108] In S510, synchronization information block transmission indication signaling is received, and the synchronization information block transmission indication signaling is used to realize adjustment of the reception state of the synchronization information block.

[0109] In an exemplary embodiment, the synchronization information block transmission indication signaling includes a synchronization information block switching indication, which is used to adjust the reception period of the synchronization information block, or realize the start or shutdown of the reception state of the synchronization information block.

[0110] In an exemplary embodiment, when the synchronization information block in the secondary cell connected with the terminal is configured as an on-demand synchronization information block, the synchronization information block switching indication is used to indicate whether the on-demand synchronization information block is received.

[0111] In an example embodiment, when the synchronization information block switching indication takes the second value, the on-demand synchronization information block is received through a secondary cell connected with the terminal.

[0112] In an example embodiment, the method provided by the embodiments of the present disclosure further includes: starting a timer after receiving the synchronization information block switching indication taking the second value; and stopping the reception of the on-demand synchronization information block if the timer expires.

[0113] In an example embodiment, if a maximum transmission time has been configured for the synchronization information block, the timer is compared with the maximum transmission time to determine whether the timer expires.

[0114] In an example embodiment, the method provided by the embodiments of the present disclosure further includes: stopping the reception of the on-demand synchronization information block if the timer does not expire and the synchronization information block switching indication taking the first value is received within the maximum transmission time.

[0115] Other contents of the embodiment of FIG. 5 can refer to the above-described embodiments, which will not be described herein again.

[0116] Based on the same inventive concept, the embodiments of the present disclosure further provide a network device, which is described in the following embodiments. Since the principle of solving problems of the network device embodiments is similar to the above-described method embodiments, the implementation of the network device embodiments can refer to the implementation of the above-described method embodiments, and the repeated parts will not be described herein again.

[0117] FIG. 6 shows a structural block diagram of a network device in an embodiment of the present disclosure. As shown in FIG. 6, the network device 600 includes a sending unit 610. The sending unit 610 is configured to send synchronization information block sending indication signaling to a terminal, where the synchronization information block sending indication signaling is used to adjust the synchronization information block sending state.

[0118] Based on the same inventive concept, the embodiments of the present disclosure further provide a terminal, which is described in the following embodiments. Since the principle of solving problems of the terminal embodiments is similar to the above-described method embodiments, the implementation of the terminal embodiments can refer to the implementation of the above-described method embodiments, and the repeated parts will not be described herein again.

[0119] FIG. 7 shows a structural block diagram of a terminal in an embodiment of the present disclosure. As shown in FIG. 7, the terminal 700 includes a receiving unit 710. The receiving unit 710 is configured to receive synchronization information block sending indication signaling, where the synchronization information block sending indication signaling is used to adjust the synchronization information block receiving state.

[0120] It should be noted that the above-described modules / units can be executed in a computer system such as a group of computer-executable instructions as a part of the apparatus.

[0121] Those skilled in the art will understand that various aspects of this disclosure can be implemented as a system, method, or program product. Therefore, various aspects of this disclosure can be specifically implemented in the following forms: a completely hardware implementation, a completely software implementation (including firmware, microcode, etc.), or a combination of hardware and software aspects, collectively referred to herein as a "circuit," "module," or "system."

[0122] The communication device 800 according to this embodiment of the present disclosure will now be described with reference to FIG8. The communication device 800 shown in FIG8 is merely an example and should not be construed as limiting the functionality and scope of the embodiments of the present disclosure.

[0123] As shown in Figure 8, the communication device 800 is presented in the form of a general-purpose computing device. The components of the communication device 800 may include, but are not limited to: at least one processing unit 810, at least one storage unit 820, and a bus 830 connecting different system components (including storage unit 820 and processing unit 810).

[0124] The storage unit 820 stores program code that can be executed by the processing unit 810, causing the processing unit 810 to perform the steps described in the "Exemplary Methods" section above according to various exemplary embodiments of this disclosure.

[0125] Storage unit 820 may include a readable medium in the form of a volatile storage unit, such as random access memory (RAM) 8201 and / or cache memory 8202, and may further include a read-only memory (ROM) 8203.

[0126] The storage unit 820 may also include a program / utility 8204 having a set (at least one) of program modules 8205, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0127] Bus 830 can represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the various bus structures.

[0128] The communication device 800 can also communicate with one or more external devices 840 such as a keyboard, a pointing device, a Bluetooth device, etc.; and can communicate with one or more devices that enable a user to interact with the communication device 800; and / or any devices (e.g., a router, a modem, etc.) that enable the communication device 800 to communicate with one or more other computing devices. Such communication can occur via Input / Output (I / O) interface(s) 850. Still yet, the communication device 800 can communicate with one or more networks such as a local area network (LAN), a general wide area network (WAN), and / or a public network (e.g., the Internet) via network adapter 860. As depicted, network adapter 860 communicates with the other components of communication device 800 via bus 830. It should be appreciated that although not shown, other hardware and / or software modules could be used in conjunction with the communication device 800. Examples, include, but are not limited to, microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data archival storage systems, etc.

[0129] Those skilled in the art will readily understand that the example embodiments described herein can be implemented by software and / or by hardware coupled with software, as described above. Thus, the technical solutions according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash disk, a mobile hard disk, etc.) or a network, and includes a number of instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to perform the methods according to the embodiments of the present disclosure.

[0130] In particular, according to the embodiments of the present disclosure, the processes described above with reference to the flowcharts can be implemented as a computer program product, which includes a computer program that, when executed by a processor, implements the above-mentioned method for transmitting a synchronization information block.

[0131] In the example embodiments of the present disclosure, a computer readable storage medium is also provided, which can be a readable signal medium or a readable storage medium. The computer readable storage medium stores a program product capable of implementing the above-mentioned method of the present disclosure. In some possible embodiments, various aspects of the present disclosure can also be implemented in the form of a program product, which includes program code for causing the terminal / network device to perform the steps according to various example embodiments of the present disclosure described in the above-mentioned “example method” section of the specification when the program product is run on the terminal / network device.

[0132] More specific examples of the computer-readable storage medium in the present disclosure can include but are not limited to an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0133] In the present disclosure, a computer readable storage medium can include a data signal carrying the readable program code in a baseband or in a carrier wave. Such a propagated data signal can take a wide variety of forms, including but not limited to electro-magnetic, optical, or any suitable combination thereof. A computer readable storage medium can also be any non-transitory computer readable medium which can be considered to be a tangible storage medium. A computer readable storage medium can be any medium that can be read by a machine learner, e.g., a computer. The computer readable storage medium can include a hard disk, a floppy disk, a magnetic disk, an optical disk, a compact disk, a CD-ROM, a DVD, a RAM, a ROM, a FLASH memory, a portable computer diskette, a hard disk drive, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0134] Optionally, program code embodied on a computer readable storage medium can be transmitted by any appropriate medium, including but not limited to wireless, wired, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0135] In an implementation, the program code for carrying out operations of the present disclosure can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++, etc., or conventional procedural programming languages, such as the "C" programming language, or similar programming languages. The program code can execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device or entirely on the remote computing device or server. In the latter scenario, the remote computing device can be connected to the user's computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computing device, such as through the Internet using an Internet Service Provider.

[0136] It should be noted that, although several modules or units of a device for action execution are mentioned in the above detailed description, such a division is not mandatory. Indeed, features and functionalities of two or more modules or units described above can be embodied in one module or unit according to embodiments of the present disclosure. Conversely, features and functionalities of one module or unit described above can be further divided into multiple modules or units.

[0137] Moreover, although individual steps of the methods in the present disclosure are described in a particular order in the drawings, this is not required or implied as to the order of execution of the steps, nor is it required that all of the steps be executed to achieve the desired result. Additionally or alternatively, certain steps can be omitted, multiple steps can be combined into one step, one step can be broken into multiple steps, etc.

[0138] From the above description of the embodiments, those skilled in the art will easily understand that the example embodiments described herein can be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a U disk, a mobile hard disk, etc.) or a network, and includes a number of instructions to make a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) execute the method according to the embodiments of the present disclosure.

[0139] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure following the general principles thereof and including such departures from the present disclosure that come within known use or custom in the art to which the present disclosure pertains. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the present disclosure are indicated by the appended claims. Industrial applicability

[0140] The present disclosure is suitable for the field of communication technology, and provides a transmission method of synchronization information block and related equipment, synchronization information block transmission indication signaling is sent to a terminal, and the synchronization information block transmission indication signaling is used to realize adjustment of synchronization information block transmission state.

Claims

1. A method for transmitting synchronization information block, comprising: sending synchronization information block transmission indication signaling to a terminal, the synchronization information block transmission indication signaling being used to adjust the state of synchronization information block transmission; when a secondary cell connected to the terminal has configured a synchronization information block period, the value of the synchronization information block switching indication is used to adjust the transmission period of the synchronization information block.

2. The method of claim 1, wherein, The synchronization information block transmission indication signaling comprises a synchronization information block switching indication, which is used to adjust the transmission period of the synchronization information block, or to turn on or turn off the state of synchronization information block transmission.

3. The method of claim 1 or 2, wherein, The value of the synchronization information block switching indication corresponds to the value of the corresponding configured synchronization information block period.

4. The method of claim 3, wherein, The synchronization information block period is included in a synchronization information block period list.

5. The method of claim 1, wherein, When the value of the synchronization information block switching indication is not configured, the transmission period of the synchronization information block is maintained.

6. The method of claim 1, wherein, When a secondary cell connected to the terminal has configured a synchronization information block period, a first value of the synchronization information block switching indication or a default value is used to indicate that the transmission period of the synchronization information block is maintained; a second value of the synchronization information block switching indication is used to indicate that the synchronization information block is adjusted to be transmitted using the configured synchronization information block period.

7. The method of claim 1, wherein, When the synchronization information block in the secondary cell connected to the terminal is configured as an on-demand synchronization information block, the synchronization information block switching indication is used to indicate whether the on-demand synchronization information block is transmitted.

8. The method of claim 7, wherein, When the value of the synchronization information block switching indication is the first value, the on-demand synchronization information block is not transmitted to the secondary cell connected to the terminal. When the value of the synchronization information block switching indication is the second value, the on-demand synchronization information block is transmitted to the secondary cell connected to the terminal.

9. The method of claim 8, wherein, Further comprising: starting a timer after sending the synchronization information block switching indication with the second value to the terminal; stopping the transmission of the on-demand synchronization information block if the timer expires.

10. The method of claim 9, wherein, If a maximum transmission time has been configured for the synchronization information block, the timer is compared with the maximum transmission time to determine whether it has expired.

11. The method of claim 10, wherein, Further comprising: stopping the transmission of the on-demand synchronization information block if the timer has not expired and the synchronization information block switching indication with the first value is sent to the terminal within the maximum transmission time.

12. The method of claim 7, wherein, When the value of the synchronization information block switching indication is not configured, it indicates that the transmission state of the on-demand synchronization information block is maintained.

13. The method of claim 1, wherein, The synchronization information block switching indication is located in downlink signaling.

14. The method of claim 13, wherein, The downlink signaling comprises downlink control information and medium access control layer control element signaling.

15. The method of claim 1, wherein, Further comprising: sending synchronization information block configuration parameters to the terminal.

16. The method of claim 15, wherein, When there is a synchronization information block transmission in the secondary cell connected to the terminal, the synchronization information block configuration parameters comprise one or more synchronization information block periods.

17. The method of claim 16, wherein, The first synchronization information block period in the configured synchronization information block period is used as the transmission period of the synchronization information block.

18. The method of claim 15, wherein, The synchronization information block configuration parameters comprise a synchronization information block period list, which includes one or more synchronization information block periods.

19. The method of claim 15, wherein, When there is no synchronization information block transmission in a secondary cell connected with the terminal, the synchronization information block configuration parameter comprises a longest transmission time configured for the synchronization information block.

20. The method of claim 15, wherein, When there is no synchronization information block transmission in a secondary cell connected with the terminal, the synchronization information block configuration parameter comprises a parameter for indicating that the synchronization information block configuration parameter is for an on-demand synchronization information block.

21. A synchronization information block transmission method, comprising: receiving synchronization information block transmission indication signaling for enabling adjustment of a synchronization information block reception state; When a synchronization information block period has been configured for a secondary cell connected with the terminal, a value of the synchronization information block switching indication is used to adjust a transmission period of a synchronization information block.

22. The method of claim 21, wherein, The synchronization information block transmission indication signaling comprises a synchronization information block switching indication for adjusting a reception period of a synchronization information block, or enabling turning on or off of a reception state of a synchronization information block.

23. The method of claim 21 or 22, wherein, The value of the synchronization information block switching indication corresponds to a value of a corresponding configured synchronization information block period.

24. The method of claim 23, wherein, The synchronization information block period is included in a synchronization information block period list.

25. The method of claim 21, wherein, When a synchronization information block in a secondary cell connected with the terminal is configured as an on-demand synchronization information block, the synchronization information block switching indication is used to indicate whether the on-demand synchronization information block is received.

26. The method of claim 25, wherein, When the synchronization information block switching indication takes a second value, the on-demand synchronization information block is received through the secondary cell connected with the terminal.

27. The method of claim 26, wherein, Further comprising: starting a timer after receiving the synchronization information block switching indication taking the second value; stopping reception of the on-demand synchronization information block if the timer expires.

28. The method of claim 27, wherein, If a longest transmission time has been configured for the synchronization information block, the timer is compared with the longest transmission time to determine whether it expires.

29. The method of claim 28, wherein, Further comprising: stopping reception of the on-demand synchronization information block if the timer does not expire and the synchronization information block switching indication taking a first value is received within the longest transmission time.

30. A network device, comprising: a sending unit configured to send synchronization information block transmission indication signaling to a terminal for enabling adjustment of a synchronization information block transmission state; When a synchronization information block period has been configured for a secondary cell connected with the terminal, a value of the synchronization information block switching indication is used to adjust a transmission period of a synchronization information block.

31. A terminal, comprising: a receiving unit configured to receive synchronization information block transmission indication signaling for enabling adjustment of a synchronization information block reception state; When a synchronization information block period has been configured for a secondary cell connected with the terminal, a value of the synchronization information block switching indication is used to adjust a transmission period of a synchronization information block.

32. The terminal of claim 31, wherein, The synchronization information block transmission indication signaling comprises a synchronization information block switching indication for adjusting a transmission period of a synchronization information block, or enabling turning on or off of a transmission state of a synchronization information block.

33. The terminal according to claim 31 or 32, wherein, The value of the synchronization information block switching indication corresponds to a value of a corresponding configured synchronization information block period.

34. The terminal of claim 33, wherein, The synchronization information block period is included in a synchronization information block period list.

35. The terminal of claim 31, wherein, The synchronization information block switching indication is located in downlink signaling.

36. The terminal of claim 35, wherein, The downlink signaling includes downlink control information, medium access control layer control element signaling.

37. The terminal of claim 31, wherein, The receiving unit is further configured to receive a synchronization information block configuration parameter.

38. The terminal of claim 37, wherein, When there is a synchronization information block being transmitted in a secondary cell connected with the terminal, the synchronization information block configuration parameter includes one or more synchronization information block periods.

39. The terminal of claim 37, wherein, The synchronization information block configuration parameter includes a synchronization information block period list, and the synchronization information block period list includes one or more synchronization information block periods. 40.A communication system, comprising: The network device of claim 30 and the terminal of any one of claims 31 to 39. 41.A communication device, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to implement the method of any one of claims 1 to 20 by executing the executable instructions, or implement the method of any one of claims 21 to 29. 42.A computer readable storage medium having stored thereon a computer program, the computer program, when executed by a processor, implements the method of any one of claims 1 to 20, or implements the method of any one of claims 21 to 29. 43.A computer program product comprising a computer program, when the computer program is run, implements the method of any one of claims 1 to 20, or implements the method of any one of claims 21 to 29.

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