Method for realizing on-demand SSB and related device

Abstract

Provided are a method for implementing an on-demand SSB and a related device, a network device communicating with a terminal based on carrier aggregation, a secondary cell of the carrier aggregation comprising a first secondary cell, the method comprising: indicating to the terminal to activate the on-demand SSB in the first secondary cell based on downlink control information (DCI). In the embodiment of the invention, the terminal is indicated to activate the on-demand SSB in the first secondary cell based on the DCI, and a foundation is laid for the terminal to accurately receive the on-demand SSB, so that the network equipment can transmit the SSB on demand, and the purpose of saving energy consumption can be achieved.

Description

Technical Field

[0001] This application relates to the field of mobile communication technology, and in particular to a method and related apparatus for implementing on-demand SSB. Background Technology

[0002] With the development of mobile communication technology, one of the trends in mobile communication development is to provide higher data rates, which requires the deployment of more base stations and the use of more frequency resources, leading to a further increase in energy consumption.

[0003] Network energy conservation is of great significance for environmental sustainability and the reduction of network operating costs.

[0004] How to reduce the energy consumption of mobile communication networks is a problem that needs to be solved. Summary of the Invention

[0005] This application provides a method and related apparatus for implementing on-demand SSB (Service-Side Bus) to reduce the energy consumption of mobile communication networks. The disclosed technical solution is as follows:

[0006] The first aspect of this application provides a method for implementing on-demand SSB, applied to a network device that communicates with a terminal based on carrier aggregation. The secondary cell of the carrier aggregation includes a first secondary cell. The method includes: instructing the terminal to activate the on-demand SSB in the first secondary cell based on downlink control information (DCI). Instructing the terminal to activate the on-demand SSB in the first secondary cell based on DCI lays the foundation for the terminal to accurately receive the on-demand SSB. Therefore, the network device can transmit SSB on demand, achieving energy savings.

[0007] In some implementations, instructing the terminal to activate the on-demand SSB in the first secondary cell based on the downlink control information (DCI) includes: sending a first DCI to the terminal, the first DCI being scrambled with a preset radio network temporary identifier (RNTI) (which may be referred to as OD-SSB-RNTI). The preset RNTI indicates that the first DCI is used for on-demand SSB. Using RNTI to scramble OD-SSB-RNTI to indicate that the DCI is used for on-demand SSB has better compatibility and consistency with communication standards.

[0008] In some implementations, the first DCI includes: cross-carrier scheduling information, which indicates that the first DCI operates on the first secondary cell.

[0009] In some implementations, the DCI also indicates the mode of transmitting on-demand SSBs in the first secondary cell, thus enabling more flexibility in indicating the mode of transmitting on-demand SSBs.

[0010] In some implementations, the DCI also indicates the mode of transmitting on-demand SSBs in the first secondary cell, including: the DCI further indicates the configuration information for transmitting on-demand SSBs in the first secondary cell, which includes at least one of the following: an index of the first set of on-demand SSB configuration information, a first frequency domain resource, a first time domain resource, a first SSB period, the number of consecutive transmissions of the first SSB, and the number of first SSB transmissions; the configuration information of the first set of SSBs indicates the mode of transmitting on-demand SSBs in the first secondary cell, the first frequency domain resource indicates the frequency domain resource used for transmitting on-demand SSBs in the first secondary cell, the first time domain resource indicates the time domain resource used for transmitting on-demand SSBs in the first secondary cell, the first SSB period is the SSB period used for transmitting on-demand SSBs in the first secondary cell, the number of consecutive transmissions of the first SSB is the number of consecutive transmissions of on-demand SSBs in the first secondary cell, and the number of first SSB transmissions is the number of times on-demand SSBs are transmitted in the first secondary cell, thereby ensuring that the terminal can accurately receive on-demand SSBs in the first secondary cell.

[0011] In some implementations, before instructing the terminal to activate the on-demand SSB in the first secondary cell based on the downlink control information (DCI), the method further includes instructing the terminal to provide on-demand SSB configuration information, which indicates the mode of transmitting the on-demand SSB. Instructing the on-demand SSB configuration information outside of the DCI helps save DCI resources.

[0012] In some implementations, instructing the terminal with on-demand SSB configuration information includes sending Radio Resource Control (RRC) signaling to the terminal, wherein the RRC signaling instructs the terminal with on-demand SSB configuration information.

[0013] In some implementations, RRC signaling includes: RRC connection message, RRC reconfiguration message, RRC establishment message, or RRC re-establishment message.

[0014] In some implementations, the on-demand SSB configuration information includes at least one of the following: an index of the on-demand SSB configuration information, frequency domain resources, time domain resources, candidate values ​​for SSB periods, candidate values ​​for the number of consecutive SSB transmission periods, and candidate values ​​for the number of SSB transmissions. The candidate values ​​for the number of consecutive SSB transmission periods include at least one consecutive SSB transmission period, and the candidate values ​​for the number of SSB transmissions include at least one number of SSB transmissions.

[0015] In some implementations, the on-demand SSB configuration information also includes: the identifier of the secondary cell, which includes the first secondary cell. When there are multiple secondary cells, the secondary cells applicable to the on-demand SSB configuration information can be indicated in batches. When there is only one secondary cell, the secondary cell applicable to the on-demand SSB configuration information can be indicated individually. In other words, the on-demand SSB configuration information can be indicated for at least one secondary cell.

[0016] In some implementations, the DCI also indicates a first type of configuration information, which indicates the mode of transmitting on-demand SSBs in the first secondary cell. The second type of configuration information is the on-demand SSB configuration information, and the first type of configuration information is wholly or partially included in the second type of configuration information. In other words, the on-demand SSB configuration information can be jointly indicated by the DCI and RRC, which can save DCI resources and provide greater flexibility.

[0017] Some implementations also include: instructing the terminal to deactivate the on-demand SSB in the first secondary cell based on DCI.

[0018] In some implementations, a second DCI is sent to the terminal. This second DCI is scrambled using a preset Radio Network Temporary Identifier (RNTI), which indicates that the second DCI is used for on-demand SSB transmission. The second DCI includes an indication field, which indicates the resources used for transmitting on-demand SSB in the first secondary cell. The value of the indication field is a preset value indicating deactivation of the on-demand SSB. Deactivating the on-demand SSB based on the second DCI unifies the activation and deactivation methods and provides flexibility in deactivation.

[0019] In some implementations, the indication field includes at least one of the following fields: indicating frequency domain resources, time domain resources, SSB period, and the first set of on-demand SSB configuration information, wherein the first set of on-demand SSB configuration information indicates the method of transmitting on-demand SSB in the first secondary cell.

[0020] In some implementations, the second DCI also includes cross-carrier scheduling information, which indicates that the second DCI operates on the first secondary cell.

[0021] In some implementations, before instructing the terminal to activate on-demand SSB in the first secondary cell based on downlink control information (DCI), the method further includes: confirming that the terminal has network energy-saving capabilities or supports on-demand SSB capabilities to avoid unnecessary resource consumption. A second aspect of this application provides a method for implementing on-demand SSB, applied to a terminal that communicates with network equipment based on carrier aggregation. The secondary cell of the carrier aggregation includes a first secondary cell. The method includes: receiving a first downlink control information (DCI), the first DCI instructing the activation of on-demand SSB in the first secondary cell; and receiving on-demand SSB in the first secondary cell based on pre-acquired on-demand SSB configuration information and the first DCI, wherein the on-demand SSB configuration information is at least indicated by the DCI. This method enables network equipment to transmit on-demand SSB to the terminal, achieving the goal of energy saving.

[0022] In some implementations, the first DCI is scrambled using a preset Radio Network Temporary Identifier (RNTI), which indicates that the first DCI is used for on-demand SSB.

[0023] In some implementations, the first DCI includes: cross-carrier scheduling information, which indicates that the first DCI operates on the first secondary cell.

[0024] In some implementations, the first DCI also indicates the mode of transmitting on-demand SSBs in the first secondary cell.

[0025] In some implementations, the first DCI further indicates the mode of transmitting on-demand SSBs in the first secondary cell, including: the first DCI further indicates the configuration information for transmitting on-demand SSBs in the first secondary cell, wherein the configuration information for transmitting on-demand SSBs in the first secondary cell includes at least one of the following: an index of the first set of on-demand SSB configuration information, a first frequency domain resource, a first time domain resource, a first SSB period, the number of consecutive transmissions of the first SSB, and the number of first SSB transmissions; the configuration information of the first set of SSBs indicates the mode of transmitting on-demand SSBs in the first secondary cell, the first frequency domain resource indicates the frequency domain resource used for transmitting on-demand SSBs in the first secondary cell, the first time domain resource indicates the time domain resource used for transmitting on-demand SSBs in the first secondary cell, the first SSB period is the SSB period used for transmitting on-demand SSBs in the first secondary cell, the number of consecutive transmissions of the first SSB is the number of consecutive transmissions of on-demand SSBs in the first secondary cell, and the number of first SSB transmissions is the number of times on-demand SSBs are transmitted in the first secondary cell.

[0026] In some implementations, before receiving the first DCI, the process also includes receiving on-demand SSB configuration information.

[0027] In some implementations, receiving on-demand SSB configuration information includes receiving Radio Resource Control (RRC) signaling, whereby the RRC signaling indicates on-demand SSB configuration information.

[0028] In some implementations, RRC signaling includes: RRC connection message, RRC reconfiguration message, RRC establishment message, or RRC re-establishment message.

[0029] In some implementations, the on-demand SSB configuration information includes at least one of the following: an index of the on-demand SSB configuration information, frequency domain resources, time domain resources, candidate values ​​for SSB periods, candidate values ​​for the number of consecutive SSB transmission periods, and candidate values ​​for the number of SSB transmissions. The candidate values ​​for the number of consecutive SSB transmission periods include at least one consecutive SSB transmission period, and the candidate values ​​for the number of SSB transmissions include at least one number of SSB transmissions.

[0030] In some implementations, the on-demand SSB configuration information also includes: the identifier of the secondary cell, which includes the first secondary cell.

[0031] In some implementations, the first DCI also indicates a first type of configuration information, which indicates the mode of transmitting on-demand SSBs in the first secondary cell. The second type of configuration information is the on-demand SSB configuration information, and the first type of configuration information is wholly or partially included in the second type of configuration information. The on-demand SSB configuration information can be jointly indicated by the DCI and RRC, which can save DCI resources and provide greater flexibility.

[0032] In some implementations, it also includes receiving a second DCI, which instructs the deactivation of the on-demand SSB in the first secondary cell.

[0033] In some implementations, the second DCI is scrambled using a preset Radio Network Temporary Identifier (RNTI). The preset RNTI indicates that the second DCI is used for on-demand SSB. The second DCI includes an indication field that indicates the resources used for transmitting on-demand SSB in the first secondary cell. The value of the indication field is a preset value that indicates the deactivation of on-demand SSB.

[0034] In some implementations, the indication field includes at least one of the following fields: indicating frequency domain resources, time domain resources, SSB period, and the first set of on-demand SSB configuration information, wherein the first set of on-demand SSB configuration information indicates the method of transmitting on-demand SSB in the first secondary cell.

[0035] In some implementations, the second DCI also includes cross-carrier scheduling information, which indicates that the second DCI operates on the first secondary cell.

[0036] A third aspect of this application provides a network device comprising: one or more processors and a memory; the memory for storing program code; and the processor for running the program code, such that the network device implements the method for implementing on-demand SSB as provided in the first aspect of this application.

[0037] A fourth aspect of this application provides a terminal comprising: one or more processors, a memory, and a touchscreen, wherein the memory is used to store program code, and the processor is used to run the program code, such that the terminal implements the method for implementing on-demand SSB provided in the second aspect of this application.

[0038] The fifth aspect of this application provides a computer-readable storage medium having instructions stored thereon that, when executed on an electronic device, cause the electronic device to perform the method for implementing on-demand SSB provided in the first or second aspect of this application.

[0039] The sixth aspect of this application provides a computer program product having stored thereon an executable that, when run on an electronic device, causes the electronic device to implement the method for implementing on-demand SSB provided in the first or second aspect of this application.

[0040] A seventh aspect of this application provides a chip system comprising: at least one processor and an interface for receiving code instructions and transmitting them to the at least one processor; the at least one processor executes the code instructions to implement the method for implementing on-demand SSB provided in the first or second aspect of this application. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is an example diagram illustrating on-demand transmission of SSB in different scenario processes provided by embodiments of this application;

[0043] Figure 2 This is a flowchart illustrating a method for implementing on-demand SSB provided in an embodiment of this application;

[0044] Figure 3 This is a structural example diagram of a terminal disclosed in an embodiment of this application;

[0045] Figure 4 This is a structural example diagram of a network device disclosed in an embodiment of this application. Detailed Implementation

[0046] The terms "first," "second," and "third," etc., used in this application specification, claims, and drawings are used to distinguish different objects, not to limit a specific order.

[0047] In the embodiments of this application, the words "in some implementations" or "for example" are used to indicate examples, illustrations or descriptions, and should not be construed as being more preferred or more advantageous than other embodiments or designs.

[0048] A mobile communication system comprises terminals, an access network, and a core network. The majority of a mobile communication system's power consumption comes from the access network, particularly the active antenna units (AAUs) within it. Access network power consumption can be divided into dynamic power consumption and static power consumption. Dynamic power consumption refers to the energy consumed during data transmission, while static power consumption refers to the energy consumed to maintain radio access functionality.

[0049] Synchronization signal and physical broadcast channel block (SSB) are used to establish downlink synchronization between terminals and network devices. Even when the terminal has no access, measurement or data transmission needs, the access network still needs to broadcast SSB at certain intervals in order to maintain wireless access functionality. Therefore, the energy consumption of SSB transmission is a key part of static energy consumption.

[0050] To reduce energy consumption, one improvement approach is to change the periodic broadcast SSB method to an on-demand SSB method. On-demand SSB can be understood as network devices transmitting SSBs to terminals only when needed, rather than periodically broadcasting SSBs.

[0051] In order to achieve network energy saving while ensuring normal communication, on-demand SSB is applied in carrier aggregation (CA) scenarios.

[0052] by Figure 1 For example, in the process of configuring a secondary cell (SCell), SSBs are transmitted using a period of 20 milliseconds. In an SSB burst, there are two valid SSB opportunities, namely SSB0 and SSB1. During a valid SSB opportunity, the network device sends an SSB.

[0053] In the process of activating SCell, SSBs are transmitted in 5-millisecond cycles. In one SSB burst, there are 4 valid SSB opportunities, that is, SSBs are sent in SSB0, SSB1, SSB2 and SSB3.

[0054] After SCell activation is complete, SSBs are transmitted using a 640-millisecond cycle, with two valid SSB opportunities included in an SSB burst, namely, SSBs are sent in SSB0 and SSB1.

[0055] It is evident that in the SCell configuration process, transmitting a small number of SSBs with a moderately long period is sufficient to meet the terminal's needs for cell measurement. In the SCell activation process, multiple SSBs are transmitted with a shorter period to reduce activation latency. After SCell activation is completed, a small number of SSBs are transmitted with a longer period for cell measurement and downlink synchronization, thus achieving the goal of transmitting SSBs on demand.

[0056] It is understandable that, in order to achieve on-demand SSB, network devices need to inform terminals of the SSB transmission timing and bearer resources so that terminals can receive the SSB. Based on this, embodiments of this application provide a method for implementing on-demand SSB, specifically including activating the on-demand SSB function and configuring on-demand SSB resources to the terminal.

[0057] The embodiments of this application provide a method for implementing on-demand SSB, which is applied in the CA scenario of a mobile communication system.

[0058] Mobile communication systems include, but are not limited to: Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, UMTS Terrestrial Radio Access Network (UTRAN) systems, or GSM EDGE Radio Access Network (GERAN) systems of Global System for Mobile Communication (GSM) / Enhanced Data Rate for GSM Evolution (EDGE) systems. Furthermore, the technical solutions provided in this application can also be applied to any other wireless communication system with similar structure and function, such as Public Land Mobile Network (PLMN) systems, 5th Generation (5G) communication systems, communication systems after 5G, New Radio Access Technology (NR) systems, and various future communication systems such as 6th Generation (6G) communication systems, and Vehicle-to-X (V2X) systems.The V2X system may include vehicle-to-network (V2N) systems, vehicle-to-vehicle (V2V) systems, vehicle-to-infrastructure (V2I) systems, vehicle-to-pedestrian (V2P) systems, Long Term Evolution-Vehicle (LTE-V) systems, vehicle-to-everything (V2X) systems, machine-type communication (MTC) systems, Internet of Things (IoT) systems, Long Term Evolution-Machine (LTE-M) systems, and machine-to-machine (M2M) systems, etc., and this application does not impose any limitations on these embodiments.

[0059] Base stations in network equipment include, but are not limited to: evolved Node B (NodeB, eNB, or e-NodeB) in LTE, base stations (gNodeB or gNB) or transmission receiving points / transmission reception points (TRPs) in NR, radio access network (RAN) equipment, base stations evolved from 3GPP, access nodes, wireless relay nodes, and wireless backhaul nodes in WiFi systems. Network equipment can also be radio controllers, centralized units (CUs), and / or distributed units (DUs) in cloud radio access network (CRAN) scenarios. Network equipment can also be servers, wearable devices, or vehicle-mounted equipment.

[0060] Terminals can include handheld devices or vehicle-mounted devices with wireless transceiver capabilities, specifically including but not limited to: mobile phones, tablets, PDAs, laptop computers, laptops, computers with wireless transceiver capabilities, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, vehicle-mounted terminal equipment, wireless terminals in self-driving vehicles, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, and personal digital assistants (PDAs). The embodiments of this application do not limit this to personal assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolved public land mobile networks (PLMNs).

[0061] As an example and not a limitation, in this embodiment, the terminal can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches, smart helmets, or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0062] Furthermore, in this embodiment, the terminal can also be a terminal device in an Internet of Things (IoT) system. IoT is an important component of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.

[0063] The terminal in this application embodiment may also be referred to as: electronic device, user equipment (UE), mobile station (MS), subscriber unit (SU), mobile terminal (MT), access terminal, access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, user unit, user station, mobile station, mobile station, remote station, remote terminal, remote terminal equipment, mobile device, user terminal, UE terminal equipment, terminal, wireless communication equipment, user agent, UE agent, UE device, or user equipment, etc.

[0064] The embodiments of this application provide a method for implementing on-demand SSB. The network device instructs the terminal to activate on-demand SSB in a secondary cell based on downlink control information (DCI). In addition to activating on-demand SSB, it is understood that in order for the terminal to accurately receive SSB, it needs to obtain the transmission mode of on-demand SSB. The transmission mode of on-demand SSB is indicated by configuration information.

[0065] In some implementations, on-demand SSB configuration information is indicated to the terminal via both Radio Resource Control (RRC) signaling and DCI. In other implementations, on-demand SSB configuration information is indicated to the terminal via either RRC signaling or DCI.

[0066] In the embodiments of this application, the expression "activate on-demand SSB" is equivalent to the expression "instruct the transmission of on-demand SSB", that is, "activate" is equivalent to "instruct the transmission of...".

[0067] The following will describe in detail a method for implementing on-demand SSB provided by an embodiment of this application.

[0068] Figure 2 This application provides a method for implementing on-demand SSB. In this embodiment, on-demand SSB configuration information is indicated to the terminal through RRC signaling and DCI, and on-demand SSB transmission in the secondary cell is activated through DCI.

[0069] Figure 2 The process includes the following steps:

[0070] S11. The network device instructs the terminal to configure SSB on demand via RRC signaling.

[0071] On-demand SSB configuration information is used to indicate the method used to transmit on-demand SSBs.

[0072] In some implementations, the network device sends RRC signaling to the terminal, which indicates on-demand SSB configuration information.

[0073] RRC signaling includes, but is not limited to, RRC connection messages, RRC reconfiguration messages, RRC establishment messages, or RRC re-establishment messages, as specified in communication standards. It may also include RRC signaling that will be newly specified in the future, which is not limited here.

[0074] On-demand SSB is SSB that is transmitted according to demand. Figure 1 For example, the method of transmitting SSBs varies under different circumstances, and the configuration information required for different transmission methods also differs. For instance, at least the duration of the SSB period in the configuration information will differ. The configuration information used to configure any on-demand SSB transmission method is called a set of on-demand SSB configuration information. Network devices may indicate one or more sets of on-demand SSB configuration information.

[0075] Any set of on-demand SSB configuration information should include at least:

[0076] a1. Index of on-demand SSB configuration information.

[0077] Each set of on-demand SSB configuration information uniquely represents the configuration information of that SSB. That is, which SSB configuration information is being configured.

[0078] In addition to a1, this on-demand SSB configuration information also includes at least one of a2-a6:

[0079] a2. Frequency domain resources.

[0080] Frequency domain resources indicate the absolute radio frequency channel number (ARFCN) used for transmitting SSB.

[0081] a3. Time-domain resources.

[0082] Time-domain resources are the time-domain resources used to transmit SSBs.

[0083] Specifically, time-domain resources include at least one of the following three types: specific time-domain resources, SSB patterns, and valid SSB opportunities within an SSB burst.

[0084] The specific time-domain resource indicates the time-domain location of the SSB opportunity used to transmit the SSB. In some implementations, the specific time-domain resource is at least one of the start slot and the start symbol.

[0085] In other implementations, the specific time-domain resource is at least one of the start slot and the start symbol, and an offset value representing at least one of the offset slot and the offset symbol between two consecutive SSB opportunities. It can be understood that when the specific time-domain resource is the start slot, the offset value represents the offset slot between two consecutive SSB opportunities. When the specific time-domain resource is the start symbol, the offset value represents the offset symbol between two consecutive SSB opportunities. When the specific time-domain resource is both the start slot and the start symbol, the offset value represents the offset slot and the offset symbol between two consecutive SSB opportunities.

[0086] A specific time-domain resource can be represented using a time-domain resource allocation table. For example, each index row in the time-domain resource allocation table indicates the start symbol of an SSB transmission, or it indicates one start symbol and multiple offset values ​​to represent multiple SSB opportunities.

[0087] An SSB pattern is used to indicate the subcarrier spacing and time-domain resource location for transmitting an SSB. The SSB patterns specified in the communication protocol include Case A, Case B, Case C, Case D, Case E, Case F, Case G, and other cases introduced in future evolution versions. Each SSB pattern corresponds to an applicable frequency band, subcarrier spacing, and the time-domain location of the SSB opportunity for transmission.

[0088] A valid SSB opportunity within an SSB burst refers to the actual opportunity within an SSB burst used to transmit an SSB. In other words, an SSB burst contains multiple SSB opportunities. If a network device needs to transmit an SSB, it must utilize these opportunities. However, not every SSB opportunity may be actually used for transmission. A valid SSB opportunity is one that is actually used to transmit an SSB. Typically, there is one SSB burst within an SSB cycle. The opportunities within an SSB burst actually used for SSB transmission are the valid SSB opportunities within that burst. These valid SSB opportunities can be indicated using a bitmap.

[0089] a4, Candidate values ​​for the SSB cycle.

[0090] In some implementations, the candidate value for the SSB period is at least one SSB period specified in the existing communication protocol, such as 5 milliseconds, 10 milliseconds, 20 milliseconds, 40 milliseconds, 80 milliseconds, and 160 milliseconds. The candidate value for the SSB period can also be the duration of a newly introduced SSB period in the future, such as a longer SSB period introduced based on the need for network energy saving; this is not limited here.

[0091] In some other implementations, the SCell for applying on-demand SSB is the primary cell (PCell) of another terminal. In this case, the candidate value of the SSB period is the SSB period used by the terminal's PCell, or the candidate value of the SSB period is not less than the SSB period used by the PCell.

[0092] Understandably, the candidate values ​​for an SSB period can include multiple values ​​(i.e., the duration of multiple SSB periods). In this case, the network device can subsequently indicate to the terminal the SSB period selected from the candidate values. Alternatively, the candidate value for an SSB period can be the duration of one SSB period, which the network device then uses to transmit on-demand SSBs.

[0093] a5, a candidate value for the number of cycles of continuous SSB transmission.

[0094] The SSB transmission cycle count indicates the number of cycles used to transmit an SSB, i.e., how many SSB cycles are used to transmit an SSB. After the SSB transmission cycle count is exceeded, the network device stops transmitting SSBs.

[0095] The candidate value for the number of consecutive SSB transmission cycles can be one or more numerical values. If it is a single numerical value, it is equivalent to directly indicating the number of consecutive SSB transmission cycles via RRC signaling, without the need for further indication via DCI. If it is multiple numerical values, it is equivalent to not explicitly indicating the number of consecutive SSB transmission cycles via RRC signaling, and a further numerical value needs to be indicated via DCI so that the terminal can accurately receive the on-demand SSB.

[0096] a6, Candidate values ​​for the number of SSB transmissions.

[0097] The SSB transmission count indicates the number of times an SSB is transmitted, which is the number of times an on-demand SSB is transmitted.

[0098] The candidate value for the number of SSB transmissions can be one or more numerical values. If it is a single numerical value, it is equivalent to directly indicating the number of SSB transmissions via RRC signaling, without the need for further indication via DCI. If it is multiple numerical values, it is equivalent to not explicitly indicating the number of SSB transmissions via RRC signaling, and further indication of the number of SSB transmissions via DCI is required to ensure that the terminal can accurately receive on-demand SSBs.

[0099] In some implementations, the on-demand SSB configuration information also includes an index of the SCell, indicating that the on-demand SSB configuration information applies to the SCell represented by the index of the SCell. In other implementations, the on-demand SSB configuration information does not include the index of the SCell, indicating that the on-demand SSB configuration information applies to all SCells with activated on-demand SSBs.

[0100] In one example (Example 1), the on-demand SSB configuration information indicated by the RRC signaling at index c1 includes: frequency domain resources, start symbol and offset values, candidate values ​​for the SSB period, and candidate values ​​for the number of consecutive SSB transmission periods. In another example (Example 2), the on-demand SSB configuration information indicated by the RRC signaling at index c2 includes: frequency domain resources, candidate values ​​for the SSB period, and candidate values ​​for the number of consecutive SSB transmission periods.

[0101] In some implementations, after confirming that the terminal has network power-saving capabilities or supports on-demand SSB capabilities, the network device configures the on-demand SSB configuration information to the terminal. The terminal's network power-saving capabilities have been reported to the network device before S11.

[0102] S12. The network device instructs the terminal to activate the on-demand SSB via DCI.

[0103] In this embodiment, the format of the DCI used to activate the on-demand SSB includes the user equipment-specific DCI specified in the communication standard. The UE-specific DCI is a DCI that points to a terminal (i.e., user equipment), such as the 1_0 format, 1_1 format, or 1_2 format DCI.

[0104] In order to identify the DCI used to activate the new On-Demand SSB function, in this embodiment, a Radio Network Temporary Identity (RNTI) is pre-configured, called OD-SSB-RNTI. The DCI scrambled with this RNTI indicates that it is used to activate the On-Demand SSB.

[0105] The DCI sent in this step may include:

[0106] b1. Cross-carrier scheduling information.

[0107] Cross-carrier scheduling information is used to indicate the SCell in which DCI is applied. Combined with the information in a DCI as defined in the communication standard for indicating downlink control within a cell, the SCell in which DCI is applied refers to the SCell that is the object of DCI indication, i.e., the SCell in which DCI is applied.

[0108] In some implementations, the cross-carrier scheduling information is the index of the SCell that the DCI operates on.

[0109] Cross-carrier scheduling information is optional. If the DCI is sent from a cell other than the SCell indicated by the cross-carrier scheduling information, such as a PCell, then the DCI must contain cross-carrier scheduling information. However, if the DCI is sent directly on the SCell in which it is applied (the SCell indicated by the cross-carrier scheduling information), then the cross-carrier scheduling information field is not required, and the terminal will confirm that the DCI is applied on the SCell in which it is sent.

[0110] In this embodiment, the field (field) in DCI can also indicate:

[0111] b2. Index of on-demand SSB configuration information.

[0112] The aforementioned S12 indicates an index of at least one set of on-demand SSB configuration information. Here, the index of on-demand SSB configuration information indicated by DCI represents a set of on-demand SSB configuration information used for subsequent transmission of on-demand SSB. In other words, a set of on-demand SSB configuration information selected from the at least one set of on-demand SSB configuration information indicated by the aforementioned RRC signaling is used for subsequent transmission of on-demand SSB in the SCell indicated by the cross-carrier scheduling information.

[0113] As mentioned earlier, the on-demand SSB configuration information indicated by the RRC signaling includes at least one of a2-a6. Therefore, it is understandable that the on-demand SSB configuration information corresponding to the index of the on-demand SSB configuration information indicated by the DCI may not provide all the necessary information for the terminal to accurately receive the on-demand SSB. For example, in Example 2 above, the on-demand SSB configuration information with index c2 includes time-domain resources. Also, the aforementioned RRC signaling indicates multiple candidate values ​​for the number of SSB transmissions, without explicitly indicating to the terminal which candidate value to apply. In this case, to ensure that the terminal accurately receives the on-demand SSB, the DCI indicates information that the RRC signaling does not indicate or does not explicitly indicate. Therefore, the field (field) in the DCI can also indicate at least one of b3-b7:

[0114] b3, Frequency domain resources.

[0115] Frequency domain resources indicate the ARFCN used by the SSB on demand for subsequent transmissions.

[0116] b4. Time-domain resources.

[0117] Temporal resources include at least one of the following three types: specific temporal resources, SSB patterns, and valid SSB opportunities within an SSB burst.

[0118] b5, SSB cycle.

[0119] The SSB period indicated by the DCI is the period used for subsequent transmissions to use SSBs on demand. For detailed information on time-domain resources, please refer to a3.

[0120] b6. Number of cycles for continuous SSB transmission.

[0121] The number of cycles for continuous SSB transmission indicated by DCI is the number of cycles for subsequent transmissions that are continuously transmitted on demand by the SSB.

[0122] b7, SSB transmission count.

[0123] The number of SSB transmissions indicated by DCI is the number of times an on-demand SSB is used for subsequent transmissions.

[0124] It is understandable that any one of b3-b7 indicated by the DCI may be one of multiple values ​​indicated by the RRC signaling. For example, if the DCI indicates a candidate value for the number of SSB transmissions (a7), then b7 is one of the candidate values ​​for the number of SSB transmissions indicated by a7. Any one of b3-b7 indicated by the DCI may also be information not indicated by the RRC signaling but indicated by the DCI.

[0125] Taking the aforementioned Example 1 as an example, when the RRC signaling indicates the configuration information of the on-demand SSB in Example 1, the configuration information of the on-demand SSB indicated by the DCI includes: index c1, and information that is not indicated or not explicitly indicated in the configuration information of the on-demand SSB indicated by index c1, namely, an SSB transmission period included in the candidate value of the SSB period indicated by the RRC signaling, and a number of consecutive SSB transmission periods included in the candidate value of the number of consecutive SSB transmission periods indicated by the RRC signaling.

[0126] Taking Example 2 above as an example, when the RRC signaling indicates the configuration information of the on-demand SSB in Example 2, the configuration information of the on-demand SSB indicated by the DCI includes: index c2, an SSB transmission period included in the candidate values ​​of the SSB period indicated by the RRC signaling, and a number of consecutive SSB transmission periods included in the candidate values ​​of the number of consecutive SSB transmission periods indicated by the RRC signaling. In addition, since the on-demand SSB configuration information with index c2 does not indicate time domain resources, the DCI also indicates time domain location, such as start symbol and offset value.

[0127] S13. In response to the instruction to activate on-demand SSB, the terminal receives the SSB based on the information from the RRC signaling and DCI instruction.

[0128] Based on the received SSB, the terminal can perform processes such as radio resource management (RRM) measurement and time-frequency synchronization.

[0129] It is understandable that after activating On-Demand SSB, you can also activate SCell's On-Demand SSB function, such as S14.

[0130] S14. The network device activates the on-demand SSB by instructing the terminal through DCI.

[0131] The DCI used for deactivation is also a UE-specific DCI, and it is also scrambled using OD-SSB-RNTI. That is, using OD-SSB-RNTI scrambling indicates that the DCI is used to activate or deactivate the on-demand SSB.

[0132] The DCI indicating deactivation includes cross-carrier scheduling information, which represents the deactivated SCell. This cross-carrier scheduling information is represented by a field in the DCI. As mentioned earlier, this cross-carrier scheduling information is optional.

[0133] The DCI indicating deactivation also includes: an indication field. The indication field is a field related to On-Demand SSB, such as at least one field indicating frequency domain resources, time domain resources, and SSB period, and may also be a field indicating the On-Demand SSB configuration information index. The value of the indication field is a preset value, indicating deactivation of the On-Demand SSB.

[0134] Examples of default values ​​are all 0 (i.e., all bits in the field are 0), all 1, or other values.

[0135] The process described in this embodiment provides a way to configure and activate / deactivate on-demand SSBs on the terminal, so that network devices can transmit SSBs on demand, thereby achieving the goal of saving energy.

[0136] Furthermore, the system first indicates the on-demand SSB configuration information via RRC signaling, then activates it via DCI, and finally indicates information that RRC signaling does not indicate or explicitly indicates via DCI. This approach offers high flexibility while saving DCI overhead.

[0137] Understandable, Figure 2 In the illustrated process, taking the example of instructing the terminal with on-demand SSB configuration information through both RRC signaling and DCI, other implementations are as follows: instructing the terminal with on-demand SSB configuration information through RRC signaling and instructing the terminal to activate on-demand SSB through DCI, instead of instructing the terminal with on-demand SSB configuration information through DCI, thereby further reducing the consumption of DCI resources. Still other implementations are as follows: instructing the activation of on-demand SSB through DCI and instructing the on-demand SSB configuration information.

[0138] Figure 3 This is a structural example diagram of a terminal disclosed in an embodiment of this application. Taking a mobile phone as an example, it includes a processor 310, an external memory interface 320, an internal memory 321, a display screen 330, a camera 340, an antenna 1, an antenna 2, a mobile communication module 350, and a wireless communication module 360, etc.

[0139] It is understood that the structure illustrated in this embodiment does not constitute a specific limitation on the terminal. In other embodiments, the terminal may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0140] Processor 310 may include one or more processing units, such as application processor (AP), modem processor, graphics processing unit (GPU), image signal processor (ISP), controller, video codec, digital signal processor (DSP), baseband processor, and / or neural network processing unit (NPU). These different processing units may be independent devices or integrated into one or more processors.

[0141] The external storage interface 320 can be used to connect an external storage card, such as a Micro SD card, to expand the terminal's storage capacity. The external storage card communicates with the processor 310 through the external storage interface 320 to perform data storage functions. For example, music, video, and other files can be saved on the external storage card.

[0142] Internal memory 321 can be used to store executable program code, including instructions. Processor 310 executes various terminal functions and data processing by running the instructions stored in internal memory 321. Internal memory 321 may include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function (such as sound playback, image playback, etc.), etc. The data storage area may store data created during terminal use (such as audio data, phonebook, etc.). Furthermore, internal memory 321 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, universal flash storage (UFS), etc. Processor 310 executes various terminal functions and data processing by running instructions stored in internal memory 321 and / or instructions stored in memory located within the processor.

[0143] The terminal's wireless communication function can be implemented through antenna 1, antenna 2, mobile communication module 350, wireless communication module 360, modem processor, and baseband processor.

[0144] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the terminal can be used to cover one or more communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In some other embodiments, the antennas can be used in conjunction with a tuning switch.

[0145] The mobile communication module 350 can provide solutions for wireless communication applications including 2G / 3G / 4G / 5G in terminals. The mobile communication module 350 may include at least one filter, switch, power amplifier, low-noise amplifier (LNA), etc. The mobile communication module 350 can receive electromagnetic waves via antenna 1, and perform filtering, amplification, and other processing on the received electromagnetic waves before transmitting them to a modem processor for demodulation. The mobile communication module 350 can also amplify the signal modulated by the modem processor and convert it into electromagnetic waves for radiation via antenna 1. In some embodiments, at least some functional modules of the mobile communication module 350 may be housed in the processor 310. In some embodiments, at least some functional modules of the mobile communication module 350 and at least some modules of the processor 310 may be housed in the same device.

[0146] In some embodiments, the terminal initiates or receives call requests via the mobile communication module 350 and the antenna 1.

[0147] In addition, an operating system runs on top of the aforementioned components. Examples include iOS, Android, and Windows. Applications can be installed and run on this operating system.

[0148] Figure 4 This is a structural example diagram of a network device 900 disclosed in an embodiment of this application, including parts 910, 920 and 930.

[0149] Section 910 is primarily used for baseband processing and control; section 910 is typically the control center of the network device, often referred to as a processor, used to control the network device to perform processing operations on the network device side in the above method embodiments. Section 920 is primarily used to store computer program code and data. Section 930 is primarily used for the transmission and reception of radio frequency (RF) signals and the conversion between RF signals and baseband signals; section 930 is often referred to as a transceiver module, transceiver, transceiver circuit, or transceiver unit. The transceiver module of section 930, also referred to as a transceiver or transceiver unit, includes an antenna 933 and an RF circuit (not shown in the figure), where the RF circuit is mainly used for RF processing. Optionally, the device in section 930 used to implement the receiving function can be considered as a receiver, and the device used to implement the transmitting function can be considered as a transmitter; that is, section 930 includes a receiver 932 and a transmitter 931. The receiver can also be referred to as a receiving module, receiver circuit, or receiving circuit, and the transmitter can be referred to as a transmitting module, transmitter, or transmitting circuit, etc.

[0150] Sections 910 and 920 may include one or more single boards, each of which may include one or more processors and one or more memories. The processors are used to read and execute programs in the memories to implement baseband processing functions and control network devices. If multiple single boards exist, they can be interconnected to enhance processing capabilities. As an alternative implementation, multiple single boards may share one or more processors, multiple single boards may share one or more memories, or multiple single boards may simultaneously share one or more processors.

[0151] For example, in one implementation, the transceiver module in section 930 is used to execute the transceiver-related processes performed by the network device in the above embodiments. The processor in section 910 is used to execute the processing-related processes performed by the network device in the above embodiments.

[0152] It should be understood that Figure 4 This is for illustrative purposes only and not as a limitation. The network devices mentioned above, including processors, memory, and transceivers, may be independent of... Figure 4 The structure shown.

[0153] Embodiments of this application also disclose a computer-readable storage medium storing instructions that, when executed on an electronic device, cause the electronic device to perform the method for implementing on-demand SSB provided in the above embodiments.

[0154] Embodiments of this application also disclose a computer program product that stores an executable program that, when run on an electronic device, causes the electronic device to implement the on-demand SSB method provided in the above embodiments.

[0155] Embodiments of this application also disclose a chip system, including: at least one processor and an interface, the interface being used to receive code instructions and transmit them to the at least one processor; the at least one processor executes the code instructions to implement the method for implementing on-demand SSB provided in the above embodiments.

[0156] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for implementing on-demand synchronization signals and physical broadcast channel blocks (SSBs), characterized in that, Applied to network devices that communicate with terminals based on carrier aggregation, wherein the secondary cell of the carrier aggregation includes a first secondary cell, the method includes: Based on downlink control information (DCI), the terminal is instructed to activate the on-demand SSB in the first secondary cell.

2. The method according to claim 1, characterized in that, The step of instructing the terminal to activate the on-demand SSB in the first secondary cell based on downlink control information (DCI) includes: A first DCI is sent to the terminal. The first DCI is scrambled using a preset Radio Network Temporary Identifier (RNTI). The preset RNTI indicates that the first DCI is used for the On-Demand SSB.

3. The method according to claim 2, characterized in that, The first DCI includes: Cross-carrier scheduling information, wherein the cross-carrier scheduling information indicates that the first DCI is applied to the first secondary cell.

4. The method according to any one of claims 1-3, characterized in that, The DCI also indicates the method of transmitting the on-demand SSB in the first secondary cell.

5. The method according to claim 4, characterized in that, The DCI also indicates the method of transmitting the on-demand SSB in the first secondary cell, including: The DCI also indicates that the configuration information of the on-demand SSB is transmitted in the first secondary cell. The configuration information of the on-demand SSB transmitted in the first secondary cell includes at least one of the following: an index of the first set of on-demand SSB configuration information, a first frequency domain resource, a first time domain resource, a first SSB period, the number of consecutive periods of the first SSB transmission, and the number of first SSB transmissions. The configuration information of the first SSB indicates the mode of transmitting the on-demand SSB in the first secondary cell; the first frequency domain resource indicates the frequency domain resources used for transmitting the on-demand SSB in the first secondary cell; the first time domain resource indicates the time domain resources used for transmitting the on-demand SSB in the first secondary cell; the first SSB period is the SSB period used for transmitting the on-demand SSB in the first secondary cell; the number of consecutive transmissions of the first SSB is the number of consecutive transmissions of the on-demand SSB in the first secondary cell; and the number of first SSB transmissions is the number of times the on-demand SSB is transmitted in the first secondary cell.

6. The method according to any one of claims 1-5, characterized in that, Before instructing the terminal to activate the on-demand SSB in the first secondary cell based on downlink control information (DCI), the method further includes: The terminal is instructed with on-demand SSB configuration information, which indicates the method of transmitting the on-demand SSB.

7. The method according to claim 6, characterized in that, The step of instructing the terminal to provide on-demand SSB configuration information includes: The terminal is sent a Radio Resource Control (RRC) signaling message, which indicates the on-demand SSB configuration information.

8. The method according to claim 7, characterized in that, The RRC signaling includes: RRC connection message, RRC reconfiguration message, RRC establishment message, or RRC re-establishment message.

9. The method according to any one of claims 6-8, characterized in that, The on-demand SSB configuration information includes at least one of the following: The on-demand SSB configuration information includes an index, frequency domain resources, time domain resources, candidate values ​​for SSB period, candidate values ​​for the number of consecutive SSB transmission periods, and candidate values ​​for the number of SSB transmissions. The candidate values ​​for the number of consecutive SSB transmission periods include at least one consecutive SSB transmission period, and the candidate values ​​for the number of SSB transmissions include at least one SSB transmission count.

10. The method according to claim 9, characterized in that, The on-demand SSB configuration information also includes: The identifier of the secondary cell, wherein the secondary cell includes the first secondary cell.

11. The method according to any one of claims 6-10, characterized in that, The DCI also indicates a first type of configuration information, which indicates the method of transmitting the on-demand SSB in the first secondary cell, and the second type of configuration information is the on-demand SSB configuration information. The first type of configuration information is wholly or partially included in the second type of configuration information.

12. The method according to any one of claims 1-11, characterized in that, Also includes: Based on the DCI, the terminal is instructed to deactivate the on-demand SSB in the first secondary cell.

13. The method according to claim 12, characterized in that, A second DCI is sent to the terminal. The second DCI is scrambled using a preset Radio Network Temporary Identifier (RNTI). The preset RNTI indicates that the second DCI is used for the On-Demand SSB. The second DCI includes: an indication field indicating the mode of transmitting the on-demand SSB in the first secondary cell, wherein the value of the indication field is a preset value indicating that the on-demand SSB is deactivated.

14. The method according to claim 13, characterized in that, The indication field includes: The field indicates at least one of the following: frequency domain resources, time domain resources, SSB period, and a first set of on-demand SSB configuration information, wherein the first set of on-demand SSB configuration information indicates the method of transmitting the on-demand SSB in the first secondary cell.

15. The method according to claim 13 or 14, characterized in that, The second DCI further includes: cross-carrier scheduling information, which indicates that the second DCI operates on the first secondary cell.

16. The method according to any one of claims 1-15, characterized in that, Before instructing the terminal to activate the on-demand SSB in the first secondary cell based on downlink control information (DCI), the method further includes: Confirm that the terminal has network power saving capabilities or supports the on-demand SSB capability.

17. A method for implementing on-demand SSB, characterized in that, Applied to a terminal, the terminal communicates with network devices based on carrier aggregation, wherein the secondary cell of the carrier aggregation includes a first secondary cell, and the method includes: Receive first downlink control information (DCI), the first DCI instructs to activate the on-demand SSB in the first secondary cell; Based on the pre-acquired on-demand SSB configuration information and the first DCI, the on-demand SSB is received in the first secondary cell, wherein the on-demand SSB configuration information is at least indicated by the DCI.

18. The method according to claim 17, characterized in that, The first DCI is scrambled using a preset Radio Network Temporary Identifier (RNTI), which indicates that the first DCI is used for the On-Demand SSB.

19. The method according to claim 18, characterized in that, The first DCI includes: Cross-carrier scheduling information, wherein the cross-carrier scheduling information indicates that the first DCI is applied to the first secondary cell.

20. The method according to any one of claims 17-19, characterized in that, The first DCI also indicates the method of transmitting the on-demand SSB in the first secondary cell.

21. The method according to claim 20, characterized in that, The first DCI also indicates the method of transmitting the on-demand SSB in the first secondary cell, including: The first DCI also indicates that the configuration information of the on-demand SSB is transmitted in the first secondary cell. The configuration information of the on-demand SSB transmitted in the first secondary cell includes at least one of the following: an index of the first set of on-demand SSB configuration information, a first frequency domain resource, a first time domain resource, a first SSB period, the number of periods in which the first SSB is continuously transmitted, and the number of times the first SSB is transmitted. The configuration information of the first SSB indicates the mode of transmitting the on-demand SSB in the first secondary cell; the first frequency domain resource indicates the frequency domain resources used for transmitting the on-demand SSB in the first secondary cell; the first time domain resource indicates the time domain resources used for transmitting the on-demand SSB in the first secondary cell; the first SSB period is the SSB period used for transmitting the on-demand SSB in the first secondary cell; the number of consecutive transmissions of the first SSB is the number of consecutive transmissions of the on-demand SSB in the first secondary cell; and the number of first SSB transmissions is the number of times the on-demand SSB is transmitted in the first secondary cell.

22. The method according to any one of claims 17-21, characterized in that, Before receiving the first DCI, the process also includes: Receive the on-demand SSB configuration information.

23. The method according to claim 22, characterized in that, Receiving the on-demand SSB configuration information includes: Receive Radio Resource Control (RRC) signaling, the RRC signaling indicating the on-demand SSB configuration information.

24. The method according to claim 23, characterized in that, The RRC signaling includes: RRC connection message, RRC reconfiguration message, RRC establishment message, or RRC re-establishment message.

25. The method according to any one of claims 22-24, characterized in that, The on-demand SSB configuration information includes at least one of the following: The on-demand SSB configuration information includes an index, frequency domain resources, time domain resources, candidate values ​​for SSB period, candidate values ​​for the number of consecutive SSB transmission periods, and candidate values ​​for the number of SSB transmissions. The candidate values ​​for the number of consecutive SSB transmission periods include at least one consecutive SSB transmission period, and the candidate values ​​for the number of SSB transmissions include at least one SSB transmission count.

26. The method according to claim 25, characterized in that, The on-demand SSB configuration information also includes: The identifier of the secondary cell, wherein the secondary cell includes the first secondary cell.

27. The method according to any one of claims 22-24, characterized in that, The first DCI also indicates a first type of configuration information, which indicates the method of transmitting the on-demand SSB in the first secondary cell, and the second type of configuration information is the on-demand SSB configuration information; The first type of configuration information is wholly or partially included in the second type of configuration information.

28. The method according to any one of claims 17-25, characterized in that, Also includes: Receive a second DCI, which instructs the on-demand SSB to be deactivated in the first secondary cell.

29. The method according to claim 28, characterized in that, The second DCI is scrambled using a preset Radio Network Temporary Identifier (RNTI), which indicates that the second DCI is used for the On-Demand SSB. The second DCI includes: an indication field, the indication field indicating the resources used by the on-demand SSB in the first secondary cell, and the value of the indication field being a preset value indicating deactivation of the on-demand SSB.

30. The method according to claim 29, characterized in that, The indication field includes: The field indicates at least one of the following: frequency domain resources, time domain resources, SSB period, and a first set of on-demand SSB configuration information, wherein the first set of on-demand SSB configuration information indicates the method of transmitting the on-demand SSB in the first secondary cell.

31. The method according to claim 29 or 30, characterized in that, The second DCI further includes: cross-carrier scheduling information, which indicates that the second DCI operates on the first secondary cell.

32. A network device, characterized in that, include: One or more processors, and a memory; the memory is used to store program code; The processor is used to run the program code, causing the network device to implement the method for implementing on-demand SSB as described in any one of claims 1 to 16.

33. A terminal, characterized in that, include: One or more processors, memory, and a touchscreen; The memory is used to store program code; The processor is used to run the program code, causing the terminal to implement the method for implementing on-demand SSB as described in any one of claims 17 to 31.

34. A computer-readable storage medium, characterized in that, It stores instructions that, when executed on an electronic device, cause the electronic device to perform the method for implementing on-demand SSB as described in any one of claims 1 to 31.

35. A computer program product, characterized in that, It stores an execution method that, when the computer program product is run on an electronic device, causes the electronic device to implement the method for implementing on-demand SSB as described in any one of claims 1 to 31.

36. A chip system, characterized in that, include: At least one processor and an interface, the interface being used to receive code instructions and transmit them to the at least one processor; The at least one processor executes the code instructions to implement the method for implementing on-demand SSB as described in any one of claims 1 to 31.

Images