Method for implementing on-demand SSB, and related apparatus

Abstract

Provided in the present application are a method for implementing an on-demand SSB, and a related apparatus. A network device communicates with a terminal on the basis of carrier aggregation, and a secondary cell of the carrier aggregation comprises a first secondary cell. The method comprises: on the basis of downlink control information (DCI), indicating, to a terminal, that an on-demand SSB is activated in a first secondary cell. On the basis of the DCI, the terminal is indicated to activate the on-demand SSB in the first secondary cell, which lays a foundation for the terminal to accurately receive the on-demand SSB. Therefore, the network device can transmit the SSB on demand, and thus the aim of reducing energy consumption can be achieved.

Description

Method for implementing on-demand SSB and related device

[0001] The present application claims priority to the Chinese patent application No. 2024113660427, filed on September 27, 2024, and titled "Method for implementing on-demand SSB and related device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of mobile communication technology, in particular to a method for implementing on-demand SSB and related device. BACKGROUND

[0003] With the development of mobile communication technology, one of the development trends of mobile communication is to provide higher data rates, so more base stations need to be deployed, more frequency resources need to be used, etc., which leads to further increase in energy consumption.

[0004] Network energy saving is of great significance to environmental sustainability and network operating cost saving.

[0005] How to reduce the energy consumption of mobile communication network is a problem to be solved. SUMMARY

[0006] The present application provides a method for implementing on-demand SSB and related device to achieve the purpose of reducing the energy consumption of mobile communication network, and the disclosed technical solution is as follows:

[0007] The first aspect of the present application provides a method for implementing on-demand SSB, applied to a network device, the network device communicates with a terminal based on carrier aggregation, and a secondary cell of the carrier aggregation includes a first secondary cell. The method comprises: indicating to the terminal to activate on-demand SSB in the first secondary cell based on downlink control information DCI. Indicating to the terminal to activate on-demand SSB in the first secondary cell based on DCI lays a foundation for the terminal to accurately receive on-demand SSB, so that the network device can transmit SSB on demand, and the purpose of saving energy consumption can be achieved.

[0008] In some implementations, indicating to the terminal to activate on-demand SSB in the first secondary cell based on downlink control information DCI comprises: sending a first DCI to the terminal, the first DCI being scrambled using a preset radio network temporary identifier RNTI (which can be referred to as OD-SSB-RNTI), and the preset radio network temporary identifier RNTI indicating that the first DCI is used for on-demand SSB. Scrambling OD-SSB-RNTI using RNTI to indicate that the DCI is used for on-demand SSB has better compatibility and consistency with communication standards.

[0009] In some implementations, the first DCI includes cross-carrier scheduling information, the cross-carrier scheduling information indicating that the first DCI acts on the first secondary cell.

[0010] In some implementations, the DCI further indicates a manner of transmitting the on-demand SSB at the first secondary cell, thereby enabling more flexible indication of the manner of transmitting the on-demand SSB.

[0011] In some implementations, the DCI further indicates a manner of transmitting the on-demand SSB at the first secondary cell, including that the DCI further indicates configuration information of transmitting the on-demand SSB at the first secondary cell, the configuration information of transmitting the on-demand SSB at the first secondary cell including at least one of the following: an index of a first set of on-demand SSB configuration information, a first frequency domain resource, a first time domain resource, a first SSB periodicity, a number of consecutive periods of transmitting the SSB at the first secondary cell, and a number of times of transmitting the SSB at the first secondary cell, the first set of SSB configuration information indicating the manner of transmitting the on-demand SSB at the first secondary cell, the first frequency domain resource indicating a frequency domain resource used for transmitting the on-demand SSB at the first secondary cell, the first time domain resource indicating a time domain resource used for transmitting the on-demand SSB at the first secondary cell, the first SSB periodicity being a SSB periodicity used for transmitting the on-demand SSB at the first secondary cell, the number of consecutive periods of transmitting the SSB at the first secondary cell being a number of consecutive periods of transmitting the on-demand SSB at the first secondary cell, and the number of times of transmitting the SSB at the first secondary cell being a number of times of transmitting the on-demand SSB at the first secondary cell, thereby ensuring that the terminal can accurately receive the on-demand SSB at the first secondary cell.

[0012] In some implementations, before indicating, to the terminal, activation of the on-demand SSB at the first secondary cell based on the DCI, the method further includes indicating, to the terminal, on-demand SSB configuration information, the on-demand SSB configuration information indicating the manner of transmitting the on-demand SSB. Indicating the on-demand SSB configuration information in addition to the DCI is beneficial for saving resources of the DCI.

[0013] In some implementations, indicating, to the terminal, the on-demand SSB configuration information includes sending, to the terminal, RRC signaling, the RRC signaling indicating the on-demand SSB configuration information.

[0014] In some implementations, the RRC signaling includes one of the following: an RRC connection message, an RRC reconfiguration message, an RRC setup message, and an RRC reestablishment message.

[0015] 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, a frequency domain resource, a time domain resource, a candidate value of a SSB periodicity, a candidate value of a number of consecutive periods of transmitting the SSB, and a candidate value of a number of times of transmitting the SSB, the candidate value of the number of consecutive periods of transmitting the SSB including at least one number of consecutive periods of transmitting the SSB, and the candidate value of the number of times of transmitting the SSB including at least one number of times of transmitting the SSB.

[0016] In some implementations, the on-demand SSB configuration information further comprises: an identity of a secondary cell, the secondary cell comprising a first secondary cell, in a case that the number of secondary cells is multiple, the secondary cell being capable of being indicated in batches as applicable to the on-demand SSB configuration information, in a case that the number of secondary cells is one, the secondary cell being capable of being indicated individually as applicable to the on-demand SSB configuration information, that is, the on-demand SSB configuration information is capable of being indicated for at least one secondary cell.

[0017] In some implementations, the DCI further indicates first type configuration information, the first type configuration information indicating a manner of transmitting the on-demand SSB in the first secondary cell, the second type configuration information being the on-demand SSB configuration information, the first type configuration information being contained in the second type configuration information in whole or in part. That is, the on-demand SSB configuration information can be indicated by the DCI and the RRC, which can save resources of the DCI and have higher flexibility.

[0018] In some implementations, the method further comprises: indicating to the terminal, based on the DCI, to deactivate the on-demand SSB in the first secondary cell.

[0019] In some implementations, the second DCI is scrambled using a preset radio network temporary identity (RNTI), the preset radio network temporary identity (RNTI) indicating that the second DCI is used for the on-demand SSB; the second DCI comprises: an indication field, the indication field indicating resources used for transmitting the on-demand SSB in the first secondary cell, a preset value of the indication field indicating deactivation of the on-demand SSB. Deactivating the on-demand SSB based on the second DCI can unify the activation manner and the deactivation manner, and make the deactivation flexible.

[0020] In some implementations, the indication field comprises: at least one of a field indicating a frequency domain resource, a time domain resource, an SSB period, and a first set of on-demand SSB configuration information, the first set of on-demand SSB configuration information indicating a manner of transmitting the on-demand SSB in the first secondary cell.

[0021] In some implementations, the second DCI further comprises: cross-carrier scheduling information, the cross-carrier scheduling information indicating that the second DCI acts on the first secondary cell.

[0022] In some implementations, before the terminal is indicated to activate the on-demand SSB at the first secondary cell based on the downlink control information DCI, the method further includes: confirming that the terminal has a network energy saving capability or supports an on-demand SSB capability, so as to avoid unnecessary resource consumption. A second aspect of the present application provides a method for implementing an on-demand SSB, applied to a terminal, the terminal communicates with a network device based on a carrier aggregation, and a secondary cell of the carrier aggregation includes a first secondary cell. The method includes: receiving a first downlink control information DCI, the first DCI indicating to activate an on-demand SSB at the first secondary cell, and receiving the on-demand SSB at the first secondary cell based on pre-acquired on-demand SSB configuration information and the first DCI, the on-demand SSB configuration information being indicated at least by the DCI. The method enables the network device to transmit the on-demand SSB to the terminal, and achieves the purpose of saving energy consumption.

[0023] In some implementations, the first DCI is scrambled using a preset radio network temporary identifier RNTI, and the preset radio network temporary identifier RNTI indicates that the first DCI is used for the on-demand SSB.

[0024] In some implementations, the first DCI includes cross-carrier scheduling information, and the cross-carrier scheduling information indicates that the first DCI acts on the first secondary cell.

[0025] In some implementations, the first DCI further indicates a manner of transmitting the on-demand SSB at the first secondary cell.

[0026] In some implementations, the first DCI further indicates the manner of transmitting the on-demand SSB at the first secondary cell, including: the first DCI further indicates configuration information of transmitting the on-demand SSB at the first secondary cell, and the configuration information of transmitting the on-demand SSB at the first secondary cell includes at least one of the following: an index of a first set of on-demand SSB configuration information, a first frequency domain resource, a first time domain resource, a first SSB period, a number of periods of continuously transmitting the first SSB, and a number of times of transmitting the first SSB; the first set of SSB configuration information indicates the manner of transmitting the on-demand SSB at the first secondary cell, the first frequency domain resource indicates a frequency domain resource used for transmitting the on-demand SSB at the first secondary cell, the first time domain resource indicates a time domain resource used for transmitting the on-demand SSB at the first secondary cell, the first SSB period is an SSB period used for transmitting the on-demand SSB at the first secondary cell, the number of periods of continuously transmitting the first SSB is a number of periods of continuously transmitting the on-demand SSB at the first secondary cell, and the number of times of transmitting the first SSB is a number of times of transmitting the on-demand SSB at the first secondary cell.

[0027] In some implementations, before the first DCI is received, the method further includes: receiving the on-demand SSB configuration information.

[0028] In some implementations, the on-demand SSB configuration information is received by: receiving radio resource control RRC signaling, and the RRC signaling indicates the on-demand SSB configuration information.

[0029] In some implementations, the RRC signaling comprises: an RRC connection message, an RRC reconfiguration message, an RRC setup message, or an RRC reestablishment message.

[0030] In some implementations, the on-demand SSB configuration information comprises at least one of: an index of the on-demand SSB configuration information, frequency domain resources, time domain resources, candidate values of an SSB periodicity, candidate values of a number of consecutive SSB transmissions, and candidate values of a number of SSB transmissions, the candidate values of the number of consecutive SSB transmissions comprising at least one number of consecutive SSB transmissions, and the candidate values of the number of SSB transmissions comprising at least one number of SSB transmissions.

[0031] In some implementations, the on-demand SSB configuration information further comprises: an identity of a secondary cell, the secondary cell comprising a first secondary cell.

[0032] In some implementations, the first DCI further indicates first type configuration information, the first type configuration information indicating a manner of transmitting the on-demand SSB at the first secondary cell, the second type configuration information being the on-demand SSB configuration information, and the first type configuration information being all or partially contained in the second type configuration information. The on-demand SSB configuration information can be indicated by the DCI and the RRC, which can save resources of the DCI and have higher flexibility.

[0033] In some implementations, the method further comprises: receiving a second DCI, the second DCI indicating deactivation of the on-demand SSB at the first secondary cell.

[0034] In some implementations, the second DCI is scrambled using a preset radio network temporary identifier (RNTI), the preset RNTI indicating that the second DCI is used for the on-demand SSB, and the second DCI comprising: an indication field, the indication field indicating resources used for transmitting the on-demand SSB at the first secondary cell, and a preset value of the indication field indicating deactivation of the on-demand SSB.

[0035] In some implementations, the indication field comprises at least one of: a field indicating frequency domain resources, a field indicating time domain resources, a field indicating an SSB periodicity, and a field indicating a first set of on-demand SSB configuration information, the first set of on-demand SSB configuration information indicating the manner of transmitting the on-demand SSB at the first secondary cell.

[0036] In some implementations, the second DCI further comprises: cross-carrier scheduling information, the cross-carrier scheduling information indicating that the second DCI is applied to the first secondary cell.

[0037] The third aspect of the present application provides a network device, comprising one or more processors and a memory; the memory is configured to store program code; the processor is configured to execute the program code, so that the network device implements the method for implementing on-demand SSB according to the first aspect of the present application.

[0038] The fourth aspect of the present application provides a terminal, comprising one or more processors, a memory and a touch screen; the memory is configured to store program code; the processor is configured to execute the program code, so that the terminal implements the method for implementing on-demand SSB according to the second aspect of the present application.

[0039] The fifth aspect of the present application provides a computer-readable storage medium, which stores instructions; when the instructions are executed on an electronic device, the electronic device executes the method for implementing on-demand SSB according to the first aspect or the second aspect of the present application.

[0040] The sixth aspect of the present application provides a computer program product, which stores instructions; when the computer program product is executed on an electronic device, the electronic device implements the method for implementing on-demand SSB according to the first aspect or the second aspect of the present application.

[0041] The seventh aspect of the present application provides a chip system, comprising at least one processor and an interface; the interface is configured to receive code instructions and transmit the code instructions to the at least one processor; the at least one processor executes the code instructions to implement the method for implementing on-demand SSB according to the first aspect or the second aspect of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0043] Fig. 1 is an example diagram of transmitting SSB on demand in different scene flows according to an embodiment of the present application;

[0044] Fig. 2 is a flowchart of a method for implementing on-demand SSB according to an embodiment of the present application;

[0045] Fig. 3 is an example diagram of the structure of a terminal disclosed according to an embodiment of the present application;

[0046] Fig. 4 is an example diagram of the structure of a network device disclosed according to an embodiment of the present application. DETAILED DESCRIPTION

[0047] The terms "first", "second", and "third" and the like in the description and in the claims of the present application and the accompanying drawings are used for distinguishing between similar objects talking about the objects themselves and not to imply or create, directly or indirectly, any such limitations on the order, envision or advantages to the application.

[0048] In the embodiments of the present application, the words "in some embodiments", "for example", and the like are used to indicate an example, an illustration or a description, and should not be interpreted as a preference or an advantage over other embodiments or design schemes.

[0049] The mobile communication system includes a terminal, an access network and a core network. Most of the energy consumption of the mobile communication system comes from the access network, especially the active antenna unit (AAU) in the access network. The energy consumption of the access network can be divided into dynamic energy consumption and static energy consumption. The dynamic energy consumption can be understood as the energy consumption of data transmission, and the static energy consumption can be understood as the energy consumption caused by maintaining the wireless access function.

[0050] The synchronization signal and physical broadcast channel block (SSB) is used to establish downlink synchronization between the terminal and the network device. In order to maintain the wireless access function, the access network needs to broadcast SSB according to a certain period, even if there is no access or measurement or data transmission demand of the terminal. Therefore, the energy consumption of SSB transmission is a key part of the static energy consumption.

[0051] In order to reduce energy consumption, one of the improvement directions is to change the periodic broadcast SSB mode to the on-demand SSB mode. The on-demand SSB can be understood as transmitting SSB from the network device to the terminal when there is a demand, rather than periodically broadcasting SSB.

[0052] In order to be able to realize network energy saving while ensuring normal communication, the on-demand SSB is applied in the carrier aggregation (CA) scenario.

[0053] Taking FIG. 1 as an example, in the process of configuring a secondary cell (SCell), SSB is transmitted in a period of 20 milliseconds. In a SSB burst, two valid SSB opportunities, SSB0 and SSB1, are included. In the valid SSB opportunity, the network device sends SSB.

[0054] In the process of activating the SCell, SSB is transmitted in a period of 5 milliseconds. In a SSB burst, four valid SSB opportunities, SSB0, SSB1, SSB2 and SSB3, are included. In each of SSB0, SSB1, SSB2 and SSB3, SSB is sent.

[0055] After the completion of SCell activation, SSB is transmitted with a period of 640 ms, including two valid SSB opportunities in one SSB burst, i.e., transmitting SSB at SSB0 and SSB1.

[0056] It can be seen that in the process of configuring SCell, a small amount of SSB is transmitted with a moderate length period to meet the needs of the terminal for cell measurement, in the process of activating SCell, multiple SSBs are transmitted with a shorter period to reduce the activation delay, and after the completion of SCell activation, a small amount of SSB is transmitted with a longer period for cell measurement and downlink synchronization, thereby achieving the purpose of transmitting SSB on demand.

[0057] It can be understood that in order to achieve the purpose of on-demand SSB, the network device needs to inform the terminal of the transmission time and bearing resources of SSB, so that the terminal can receive the SSB. Based on this, the embodiments of the present application provide a method for implementing on-demand SSB, specifically including activating the on-demand SSB function and configuring the on-demand SSB resources to the terminal.

[0058] The method for implementing on-demand SSB provided by the embodiments of the present application is applied to the CA scenario of a mobile communication system.

[0059] The mobile communication system includes, but is not limited to, a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a UMTS Terrestrial Radio Access Network (UTRAN) system, or a Global System for Mobile Communication (GSM) / Enhanced Data Rates for GSM Evolution (EDGE) system radio access network (GSM EDGE Radio Access Network, GERAN) system. In addition, the technical solutions provided by the embodiments of the present application can also be applied to any other wireless communication system with similar structure and function, such as a Public Land Mobile Network (PLMN) system, a 5th Generation (5G) communication system, a communication system after 5G, a New Radio Access Technology (NR) system, future various communication systems such as a 6th generation (6G) communication system, a Vehicle-to-X (V2X) system, etc.The V2X system can include a vehicle-to-network (V2N) system, a vehicle-to-vehicle (V2V) system, a vehicle-to-infrastructure (V2I) system, a vehicle-to-pedestrian (V2P) system, a long term evolution-vehicle (LTE-V) system, a vehicle-to-everything (V2X) system, a machine type communication (MTC) system, an internet of things (IoT) system, a long term evolution-machine (LTE-M) system, a machine-to-machine (M2M) system, and the like, and embodiments of the present application do not make any limitation thereto.

[0060] The base station in the network device includes, but is not limited to, an evolved Node B (eNB or e-NodeB) in LTE, a base station (gNodeB or gNB) or a transmission receiving point (TRP) in NR, a radio access network (RAN) device, a base station in a subsequent evolution of 3GPP, an access node in a WiFi system, a wireless relay node, a wireless backhaul node, and the like. The network device can also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario. The network device can also be a server, a wearable device, or a vehicle-mounted device, and the like.

[0061] The terminal can include a handheld device with wireless transceiver function, or a vehicle-mounted device, etc., and can be, but is not limited to, a mobile phone, a mobile phone, a tablet computer, a palm computer, a laptop computer, a notebook computer, a computer with wireless transceiver function, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a terminal device in a vehicle-mounted terminal, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved public land mobile network (PLMN), etc. The embodiments of the present application are not limited thereto.

[0062] By way of example and not limitation, in the embodiments of the present application, the terminal can also be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes. The wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. The wearable device is not only a hardware device, but also a powerful function realized through software support and data interaction, cloud interaction. The general wearable smart device includes a full function, large size, and can realize complete or partial functions without relying on a smart phone, such as a smart watch, a smart helmet, or a smart glasses, etc., and focuses on a certain application function, and needs to cooperate with other devices such as a smart phone, such as various smart wristbands, smart jewelry, etc. for monitoring body signs.

[0063] In addition, in the embodiments of the present application, the terminal can also be a terminal device in an Internet of Things (IoT) system. The IoT is an important part of future information technology development, and its main technical feature is to connect objects through communication technology and network, so as to realize the intelligent network of man-machine interconnection and object-object interconnection.

[0064] The terminal in the embodiments of the present application can also be referred to as an electronic device, a user equipment (UE), a mobile station (MS), a subscriber unit (SU), a mobile terminal (MT), an access terminal, an access terminal device, a vehicle-mounted terminal, an industrial control terminal, a UE unit, a UE station, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a remote terminal device, a mobile device, a user terminal, a UE terminal device, a terminal, a wireless communication device, a user agent, a UE agent, a UE device, or a user device, etc.

[0065] The embodiments of the present application provide a method for implementing on-demand SSB. The network device instructs the terminal to activate the on-demand SSB in one secondary cell based on the downlink control information (DCI). In addition to activating the on-demand SSB, it can be understood that the terminal needs to obtain the transmission mode of the on-demand SSB to accurately receive the SSB, and the transmission mode of the on-demand SSB is indicated by configuration information.

[0066] In some implementations, the on-demand SSB configuration information is indicated to the terminal by radio resource control (RRC) signaling and DCI. In other implementations, the on-demand SSB configuration information is indicated to the terminal by RRC signaling or DCI.

[0067] In the embodiments of the present application, the expression "activate the on-demand SSB" is equivalent to the expression "indicate the transmission of the on-demand SSB", that is, "activate" is equivalent to "indicate the transmission of".

[0068] The embodiments of the present application will be described in detail below.

[0069] FIG. 2 is a method for implementing on-demand SSB according to an embodiment of the present application. In this embodiment, the on-demand SSB configuration information is indicated to the terminal by RRC signaling and DCI, and the transmission of the on-demand SSB in the secondary cell is activated by DCI.

[0070] The following steps are included in FIG. 2:

[0071] S11、The network device indicates the on-demand SSB configuration information to the terminal through RRC signaling.

[0072] The on-demand SSB configuration information is used to indicate the manner used for transmitting the on-demand SSB.

[0073] In some implementations, the network device sends RRC signaling to the terminal, and the RRC signaling indicates the on-demand SSB configuration information.

[0074] The RRC signaling includes, but is not limited to, RRC connection messages, RRC reconfiguration messages, RRC setup messages, or RRC reestablishment messages, and the like RRC signaling defined in communication standards, and future newly defined RRC signaling, which are not limited herein.

[0075] The on-demand SSB is transmitted according to the demand. For example, in FIG. 1, the manner of transmitting the SSB is different in different cases, and the configuration information required by different transmission manners is also different, for example, the length of the SSB period in the configuration information is different. The configuration information used to configure any one of the on-demand SSB transmission manners is referred to as a set of on-demand SSB configuration information. The network device can indicate one or more sets of on-demand SSB configuration information.

[0076] Any one set of on-demand SSB configuration information at least includes:

[0077] a1, an index of the on-demand SSB configuration information.

[0078] The index of any one set of on-demand SSB configuration information uniquely represents the configuration information of the set of SSBs. That is, which set of SSB configuration information is configured.

[0079] In addition to a1, the set of on-demand SSB configuration information further includes at least one of a2-a6:

[0080] a2, frequency domain resource.

[0081] The frequency domain resource indicates an absolute radio frequency channel number (ARFCN) used for transmitting the SSB.

[0082] a3, time domain resource.

[0083] The time domain resource is a time domain resource used for transmitting the SSB.

[0084] Specifically, the time domain resource includes at least one of the following three: specific time domain resource, SSB pattern, and valid SSB opportunity within an SSB burst.

[0085] The specific time domain resource indicates a time domain location of an SSB opportunity for transmitting an SSB. In some implementations, the specific time domain resource is at least one of a starting slot and a starting symbol.

[0086] In some other implementations, the specific time domain resource is at least one of a starting slot and a starting symbol, and an offset value, the offset value indicating at least one of an offset slot and an offset symbol between two consecutive SSB opportunities. It can be understood that, in the case that the specific time domain resource is a starting slot, the offset value indicates an offset slot between two consecutive SSB opportunities. In the case that the specific time domain resource is a starting symbol, the offset value indicates an offset symbol between two consecutive SSB opportunities. In the case that the specific time domain resource is both a starting slot and a starting symbol, the offset value indicates both an offset slot and an offset symbol between two consecutive SSB opportunities.

[0087] The specific time domain resource can be indicated using a time domain resource allocation table, for example, each index row in the time domain resource allocation table indicates a starting symbol of SSB transmission, or indicates one starting symbol and multiple offset values for indicating multiple SSB opportunities.

[0088] An SSB pattern is used to indicate a subcarrier spacing and a time domain resource location of an SSB. SSB patterns specified in a 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, a subcarrier spacing, and a time domain location of an SSB opportunity for transmitting an SSB.

[0089] An effective SSB opportunity within an SSB burst refers to an opportunity actually used for transmitting an SSB in an SSB burst, that is, an SSB burst contains multiple SSB opportunities, and a network device needs to transmit an SSB in an SSB opportunity if it needs to transmit an SSB, but not every SSB opportunity may actually be used for transmitting an SSB, and an effective SSB opportunity is an SSB opportunity actually used for transmitting an SSB. Generally, there is an SSB burst in an SSB period, and the opportunity actually used for transmitting an SSB in the SSB burst is an effective SSB opportunity within the SSB burst, and the effective SSB opportunity within the SSB burst can be indicated in the form of a bit map.

[0090] a4, a candidate value of an SSB period.

[0091] In some implementations, the candidate values of the SSB period are at least one SSB period defined in an existing communication protocol, such as 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, and 160 ms, etc. The candidate values of the SSB period can also be a length of a newly introduced SSB period in the future, such as a longer SSB period introduced based on the network energy saving requirement, which is not limited here.

[0092] In some other implementations, the SCell applying the on-demand SSB is a primary cell (PCell) of another terminal, in which case the candidate values of the SSB period are the SSB period used by the PCell of the terminal, or the candidate values of the SSB period are not less than the SSB period used by the PCell.

[0093] It can be understood that the candidate values of the SSB period can include multiple values (i.e., multiple lengths of SSB periods), in which case the SSB period selected from the candidate values of the SSB period can be subsequently indicated to the terminal by the network device. The candidate values of the SSB period can also be one length of an SSB period, and the network device subsequently uses the length of the SSB period to transmit the on-demand SSB.

[0094] a5, candidate values of the number of consecutive SSB transmission periods.

[0095] The number of SSB transmission periods indicates the number of periods of transmitting the SSB, that is, how many SSB periods are used to transmit the SSB. After the number of SSB transmission periods is exceeded, the network device stops transmitting the SSB.

[0096] The candidate values of the number of consecutive SSB transmission periods can be one or more values. If it is one value, it is equivalent to directly indicating one number of consecutive SSB transmission periods through RRC signaling, and subsequent further indication through DCI is not required. If it is multiple values, it is equivalent to not explicitly indicating the number of consecutive SSB transmission periods through RRC signaling, and a subsequent further indication of one value through DCI is required so that the terminal can accurately receive the on-demand SSB.

[0097] a6, candidate values of the number of SSB transmissions.

[0098] The number of SSB transmissions indicates the number of times of transmitting the SSB, that is, how many times of transmitting the on-demand SSB.

[0099] The candidate value of the number of SSB transmissions can be one or more values. If it is one value, it means that the network device directly indicates the number of SSB transmissions through RRC signaling, and there is no need to further indicate the number of SSB transmissions through DCI. If it is multiple values, it means that the network device does not explicitly indicate the number of SSB transmissions through RRC signaling, and the number of SSB transmissions still needs to be further indicated through DCI, so that the terminal can accurately receive the on-demand SSB.

[0100] In some implementations, the set of on-demand SSB configuration information further includes an index of an SCell, indicating that the set of on-demand SSB configuration information is applicable to the SCell indicated by the index of the SCell. In other implementations, the set of on-demand SSB configuration information does not include an index of an SCell, indicating that the set of on-demand SSB configuration information is applicable to all activated SCells of the on-demand SSB.

[0101] In one example (Example One), the on-demand SSB configuration information with the index c1 indicated by the RRC signaling includes: frequency domain resources, a start symbol, an offset value, candidate values of an SSB period, and candidate values of the number of consecutive periods of SSB transmission. In another example (Example Two), the on-demand SSB configuration information with the index c2 indicated by the RRC signaling includes: frequency domain resources, candidate values of an SSB period, and candidate values of the number of consecutive periods of SSB transmission.

[0102] In some implementations, the network device configures the on-demand SSB configuration information to the terminal after confirming that the terminal has a network energy saving capability or supports an on-demand SSB capability. The network energy saving capability of the terminal has been reported to the network device before S11.

[0103] S12, the network device indicates the terminal to activate the on-demand SSB through DCI.

[0104] In this embodiment, the format of the DCI used to activate the on-demand SSB includes a user equipment (UE-specific) DCI specified in the communication standard. The UE-specific DCI refers to the DCI that is used to indicate one terminal (i.e., user equipment), such as the DCI in the formats of 1_0, 1_1, or 1_2.

[0105] In order to identify that the DCI is used for activating the new function of the on-demand SSB, in this embodiment, a Radio Network Temporary Identity (RNTI) is pre-configured, which is called OD-SSB-RNTI. The DCI scrambled by the RNTI indicates that it is used to activate the on-demand SSB.

[0106] In the DCI sent in this step, the following information can be included:

[0107] b1, cross-carrier scheduling information.

[0108] The cross-carrier scheduling information is used to indicate the SCell on which the DCI acts. A piece of DCI is used to indicate the relevant information of the downlink control of a cell according to the communication standard, so the SCell on which the DCI acts refers to the SCell that is the indication object of the DCI, that is, the SCell to which the DCI is applied.

[0109] In some implementations, the cross-carrier scheduling information is the index of the SCell on which the DCI acts.

[0110] The cross-carrier scheduling information is optional information, and if the DCI is sent from a cell other than the SCell indicated by the cross-carrier scheduling information, such as a PCell, the cross-carrier scheduling information must be included in the DCI, and if the DCI is sent directly on the SCell on which it acts (the SCell indicated by the cross-carrier scheduling information), the cross-carrier scheduling information field is not required, and the terminal will confirm that the DCI acts on the SCell on which it is sent.

[0111] In this embodiment, the filed in the DCI can also indicate:

[0112] b2, the index of the on-demand SSB configuration information.

[0113] The S12 indicates the index of at least one set of on-demand SSB configuration information, and the index of the on-demand SSB configuration information indicated by the DCI indicates a set of on-demand SSB configuration information used for subsequent transmission of on-demand SSBs, that is, a set of on-demand SSB configuration information selected from the at least one set of on-demand SSB configuration information indicated by the RRC signaling is used for subsequent transmission of on-demand SSBs on the SCell indicated by the cross-carrier scheduling information.

[0114] As described above, the on-demand SSB configuration information indicated by the RRC signaling includes at least one of a2-a6, so it can be understood that the on-demand SSB configuration information corresponding to the index of the on-demand SSB configuration information indicated by the DCI may not be able to provide all the required information for the terminal to accurately receive the on-demand SSB, for example, in the aforementioned example two, the on-demand SSB configuration information with the index c2 includes time domain resources, and for example, the RRC signaling indicates multiple candidate values of the number of SSB transmissions, without explicitly indicating the specific candidate value to be applied to the terminal. In this case, in order to ensure that the terminal accurately receives the on-demand SSB, the DCI indicates the information that is not indicated or not explicitly indicated by the RRC signaling, so the filed in the DCI can also indicate at least one of b3-b7:

[0115] b3, frequency domain resource.

[0116] The frequency domain resource indicates an ARFCN used by the subsequent transmission on-demand SSB.

[0117] b4, time domain resource.

[0118] The time domain resource includes at least one of the following three: a specific time domain resource, an SSB pattern, and an SSB opportunity valid within an SSB burst.

[0119] b5, SSB period.

[0120] The SSB period indicated by the DCI is a period used by the subsequent transmission on-demand SSB. For a specific description of the time domain resource, see a3.

[0121] b6, number of periods of consecutive SSB transmission.

[0122] The number of periods of consecutive SSB transmission indicated by the DCI is the number of periods of consecutive SSB transmission used by the subsequent transmission on-demand SSB.

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

[0124] It can be understood that any one of b3-b7 indicated by the DCI can be one of a plurality of values indicated by RRC signaling, for example, the DCI indicates a candidate value of the number of SSB transmissions, that is, a7, and b7 is one of the candidate values of the number of SSB transmissions indicated in a7. Any one of b3-b7 indicated by the DCI can also be information not indicated by RRC signaling, but indicated by the DCI.

[0125] Taking the foregoing example one as an example, in the case where the RRC signaling indicates the configuration information of the on-demand SSB of example one, the configuration information of the on-demand SSB indicated by the DCI includes: the index c1, and the information not indicated or not explicitly indicated in the configuration information of the on-demand SSB indicated by the index c1, that is, one SSB transmission period included in the candidate values of the SSB period indicated by the RRC signaling, and one SSB consecutive transmission period number included in the candidate values of the SSB consecutive transmission period number indicated by the RRC signaling.

[0126] Taking the foregoing example two as an example, in the case where the RRC signaling indicates the configuration information of the on-demand SSB of example two, the configuration information of the on-demand SSB indicated by the DCI includes: the index c2, one SSB transmission period included in the candidate values of the SSB period indicated by the RRC signaling, and one SSB consecutive transmission period number included in the candidate values of the SSB consecutive transmission period number indicated by the RRC signaling, in addition, because the configuration information of the on-demand SSB with the index c2 does not indicate the time domain resource, the DCI also indicates the time domain location, such as the starting symbol and the offset value.

[0127] S13, the terminal receives the SSB based on the information indicated by the RRC signaling and the DCI in response to the indication of activating the on-demand SSB.

[0128] The terminal can implement procedures such as inter-frequency radio resource management (RRM) measurement and time-frequency synchronization based on the received SSB.

[0129] It can be understood that after the on-demand SSB is activated, the on-demand SSB function of the SCell can also be deactivated, such as S14.

[0130] S14, the network device indicates the terminal to deactivate the on-demand SSB through the DCI.

[0131] The DCI for deactivation is also a UE-specific DCI, and is also scrambled using the OD-SSB-RNTI, that is, the use of the 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 indicating the SCell to be deactivated. The cross-carrier scheduling information is represented by a field in the DCI. As described above, the cross-carrier scheduling information is optional information.

[0133] The DCI indicating deactivation also includes an indication field. The indication field is a field related to the on-demand SSB, for example, the indication field includes at least one of the fields indicating the frequency domain resource, the time domain resource, and the SSB period, and can also be a field indicating the on-demand SSB configuration information index. The value of the indication field is a preset value, indicating to deactivate the on-demand SSB.

[0134] Examples of the preset value are all 0 (that is, the value of the bit in the field is 0), all 1, or other values.

[0135] The procedures described in the embodiment provide a way to configure the on-demand SSB to the terminal and activate and deactivate the on-demand SSB, so that the network device can transmit the SSB on demand, and the purpose of saving energy consumption can be achieved.

[0136] And first, the on-demand SSB configuration information is indicated by the RRC signaling, then the activation is indicated by the DCI, and the information not indicated or explicitly indicated by the RRC signaling is indicated by the DCI, which has high flexibility and can save the overhead of the DCI.

[0137] It can be understood that, in the flow shown in FIG. 2, the terminal is indicated by RRC signaling and DCI to indicate the on-demand SSB configuration information together. In addition to this, another implementation manner is that the terminal is indicated by RRC signaling to indicate the on-demand SSB configuration information, and the terminal is indicated by DCI to activate the on-demand SSB, and the on-demand SSB configuration information is no longer indicated by DCI, so as to further reduce the consumption of DCI resources. Another implementation manner is that the terminal is indicated by DCI to activate the on-demand SSB, and the on-demand SSB configuration information is also indicated.

[0138] FIG. 3 is a structural example diagram of a terminal disclosed in an embodiment of the present application. Taking a mobile phone as an example, the terminal 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, and the like.

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

[0140] The processor 310 can include one or more processing units. For example, the processor 310 can include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units can be independent devices or integrated into one or more processors.

[0141] The external memory interface 320 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the terminal. The external memory card communicates with the processor 310 through the external memory interface 320 to realize the data storage function. For example, files such as music and videos are saved in the external memory card.

[0142] The internal memory 321 can be used to store computer executable program codes, which include instructions. The processor 310 performs various functional applications and data processing of the terminal by executing the instructions stored in the internal memory 321. The internal memory 321 can include a program storage area and a data storage area. The program storage area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), and the like. The data storage area can store data created during the use of the terminal (such as audio data, a phone book, etc.), and the like. In addition, the internal memory 321 can include a high-speed random access memory, and can further include a non-volatile memory such as at least one magnetic disk storage device, a flash memory device, a universal flash storage (UFS), and the like. The processor 310 performs various functional applications and data processing of the terminal by executing the instructions stored in the internal memory 321 and / or the instructions stored in the memory disposed in the processor.

[0143] The wireless communication function of the terminal can be implemented by the antenna 1, the antenna 2, the mobile communication module 350, the wireless communication module 360, the modem processor, and the baseband processor, and the like.

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

[0145] The mobile communication module 350 can provide a solution including 2G / 3G / 4G / 5G wireless communication applied to the terminal. The mobile communication module 350 can include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), and the like. The mobile communication module 350 can receive electromagnetic waves by the antenna 1, and perform filtering, amplification, and the like on the received electromagnetic waves, and transmit the processed electromagnetic waves to the modem processor for demodulation. The mobile communication module 350 can also amplify the signals modulated by the modem processor, and convert the signals into electromagnetic waves to be radiated out through the antenna 1. In some embodiments, at least part of the functional modules of the mobile communication module 350 can be disposed in the processor 310. In some embodiments, at least part of the functional modules of the mobile communication module 350 and at least part of the modules of the processor 310 can be disposed in the same device.

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

[0147] In addition, on the above components, an operating system runs. For example, iOS operating system, Android operating system, Windows operating system, etc. Application programs can be installed and run on the operating system.

[0148] FIG. 4 is a structural example diagram of a network device 900 disclosed in an embodiment of the present application, including a 910 part, a 920 part, and a 930 part.

[0149] The 910 part is mainly used for baseband processing and control, etc. The 910 part is usually the control center of the network device, which can be usually referred to as a processor, and is used to control the network device to perform the processing operations on the network device side in the above method embodiments. The 920 part is mainly used for storing computer program codes and data. The 930 part is mainly used for transceiving radio frequency signals and converting radio frequency signals and baseband signals. The 930 part can be usually referred to as a transceiver module, a transceiver, a transceiver circuit, or a transceiver, etc. The transceiver module of the 930 part can also be referred to as a transceiver or a transceiver, etc., which includes an antenna 933 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly used for radio frequency processing. Optionally, the devices in the 930 part for realizing the receiving function can be regarded as a receiver, and the devices for realizing the sending function can be regarded as a transmitter, that is, the 930 part includes a receiver 932 and a transmitter 931. The receiver can also be referred to as a receiving module, a receiver, or a receiving circuit, etc., and the transmitter can be referred to as a transmitting module, a transmitter, or a transmitting circuit, etc.

[0150] The 910 part and the 920 part can include one or more single boards, and each single board can include one or more processors and one or more memories. The processor is used to read and execute the program in the memory to realize the baseband processing function and the control of the network device. If there are multiple single boards, the single boards can be interconnected to enhance the processing capability. As an optional implementation, multiple single boards can also share one or more processors, or multiple single boards can share one or more memories, or multiple single boards can share one or more processors at the same time.

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

[0152] It should be understood that FIG. 4 is only an example and not a limitation, and the above network device including a processor, a memory, and a transceiver can not depend on the structure shown in FIG. 4.

[0153] The embodiment of the present application further discloses a computer readable storage medium, which stores instructions, and the instructions enable an electronic device to perform the method for implementing on-demand SSBs provided by the above-mentioned embodiment when the instructions are run on the electronic device.

[0154] The embodiment of the present application further discloses a computer program product, which stores instructions, and the instructions enable an electronic device to perform the method for implementing on-demand SSBs provided by the above-mentioned embodiment when the computer program product is run on the electronic device.

[0155] The embodiment of the present application further discloses a chip system, which comprises at least one processor and an interface, the interface is used for receiving code instructions and transmitting the code instructions to the at least one processor, and the at least one processor runs the code instructions to implement the method for implementing on-demand SSBs provided by the above-mentioned embodiment.

[0156] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this, any change or replacement within the technical scope disclosed by the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for implementing a synchronization signal and physical broadcast channel block (SSB) on demand, the method comprising: receiving a request for an SSB; and transmitting the SSB in response to the request. The method is applied to a network device, the network device communicates with a terminal based on carrier aggregation, a secondary cell of the carrier aggregation includes a first secondary cell, and the method comprises the following steps: Indicating, to the terminal, to activate the on-demand SSB on the first secondary cell based on a downlink control information DCI.

2. The method of claim 1, wherein, The step of indicating, to the terminal, to activate the on-demand SSB on the first secondary cell based on a downlink control information DCI comprises the following steps: Sending a first DCI to the terminal, the first DCI is scrambled by a preset radio network temporary identifier RNTI, and the preset radio network temporary identifier RNTI indicates that the first DCI is used for the on-demand SSB.

3. The method of claim 2, wherein, The first DCI comprises the following steps: Cross-carrier scheduling information, the cross-carrier scheduling information indicates that the first DCI acts on the first secondary cell.

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

5. The method of claim 4, wherein, The DCI further indicates a manner of transmitting the on-demand SSB on the first secondary cell, comprising the following steps: The DCI further indicates configuration information of transmitting the on-demand SSB on the first secondary cell, the configuration information of transmitting the on-demand SSB on the first secondary cell comprises at least one of the following: an index of a first set of on-demand SSB configuration information, a first frequency domain resource, a first time domain resource, a first SSB period, a number of periods of continuously transmitting a first SSB, and a number of times of transmitting a first SSB; The first set of SSB configuration information indicates a manner of transmitting the on-demand SSB on the first secondary cell, the first frequency domain resource indicates a frequency domain resource used for transmitting the on-demand SSB on the first secondary cell, the first time domain resource indicates a time domain resource used for transmitting the on-demand SSB on the first secondary cell, the first SSB period is an SSB period used for transmitting the on-demand SSB on the first secondary cell, the number of periods of continuously transmitting the first SSB is a number of periods of continuously transmitting the on-demand SSB on the first secondary cell, and the number of times of transmitting the first SSB is a number of times of transmitting the on-demand SSB on the first secondary cell.

6. The method according to any one of claims 1 to 5, characterized in that, Before the step of indicating, to the terminal, to activate the on-demand SSB on the first secondary cell based on a downlink control information DCI, the method further comprises the following steps: Indicating, to the terminal, on-demand SSB configuration information, the on-demand SSB configuration information indicates a manner of transmitting the on-demand SSB.

7. The method of claim 6, wherein, The step of indicating, to the terminal, on-demand SSB configuration information comprises the following steps: Sending a radio resource control RRC signaling to the terminal, the RRC signaling indicates the on-demand SSB configuration information.

8. The method of claim 7, wherein, The RRC signaling comprises the following steps: An RRC connection message, an RRC reconfiguration message, an RRC setup message, or an RRC reestablishment message.

9. The method according to any one of claims 6-8, characterized in that, The on-demand SSB configuration information comprises at least one of the following: An index of on-demand SSB configuration information, a frequency domain resource, a time domain resource, a candidate value of an SSB period, a candidate value of a number of periods of continuously transmitting an SSB, and a candidate value of a number of times of transmitting an SSB, the candidate value of the number of periods of continuously transmitting the SSB comprises at least one number of periods of continuously transmitting an SSB, and the candidate value of the number of times of transmitting the SSB comprises at least one number of times of transmitting an SSB.

10. The method of claim 9, wherein, The on-demand SSB configuration information further comprises: An identifier of a secondary cell, the secondary cell comprising the first secondary cell.

11. The method according to any one of claims 6-10, characterized in that, The DCI further indicates first type configuration information, the first type configuration information indicating a manner of transmitting the on-demand SSB at the first secondary cell, and second type configuration information being the on-demand SSB configuration information. The first type configuration information is all or partially contained in the second type configuration information.

12. The method according to any one of claims 1 to 11, characterized in that, Further comprising: Based on the DCI, indicating to the terminal to deactivate the on-demand SSB at the first secondary cell.

13. The method of claim 12, wherein, Sending a second DCI to the terminal, the second DCI being scrambled by a preset radio network temporary identifier (RNTI), the preset radio network temporary identifier (RNTI) indicating that the second DCI is used for the on-demand SSB; The second DCI comprises an indication field, the indication field indicating a manner of transmitting the on-demand SSB at the first secondary cell, and a preset value of the indication field indicating deactivating the on-demand SSB.

14. The method of claim 13, wherein, The indication field comprises: At least one of a field indicating a frequency domain resource, a time domain resource, an SSB period, and a first set of on-demand SSB configuration information, the first set of on-demand SSB configuration information indicating a manner of transmitting the on-demand SSB at the first secondary cell.

15. The method according to claim 13 or 14, characterized in that, The second DCI further comprises cross-carrier scheduling information, the cross-carrier scheduling information indicating that the second DCI is applied to the first secondary cell.

16. The method according to any one of claims 1 to 15, characterized in that, Before the DCI indicates to the terminal to activate the on-demand SSB at the first secondary cell, further comprising: Confirming that the terminal has a network energy saving capability or supports the on-demand SSB capability.

17. A method of implementing on-demand SSBs, the method comprising: Applied to a terminal, the terminal communicates with a network device based on a carrier aggregation, a secondary cell of the carrier aggregation comprising a first secondary cell, the method comprising: Receiving a first downlink control information (DCI), the first DCI indicating to activate the on-demand SSB at the first secondary cell; Based on pre-acquired on-demand SSB configuration information and the first DCI, receiving the on-demand SSB at the first secondary cell, the on-demand SSB configuration information being indicated at least by the DCI.

18. The method of claim 17, wherein, The first DCI is scrambled by a preset radio network temporary identifier (RNTI), the preset radio network temporary identifier (RNTI) indicating that the first DCI is used for the on-demand SSB.

19. The method of claim 18, wherein, The first DCI comprises: Cross-carrier scheduling information, the cross-carrier scheduling information indicating that the first DCI is applied to the first secondary cell.

20. The method according to any one of claims 17-19, characterized by, The first DCI further indicates a manner of transmitting the on-demand SSB at the first secondary cell.

21. The method of claim 20, wherein, The first DCI further indicates a manner of transmitting the on-demand SSB at the first secondary cell, comprising: The first DCI further indicates configuration information of transmitting the on-demand SSB at the first secondary cell, the configuration information of transmitting the on-demand SSB at the first secondary cell comprising at least one of an index of a first set of on-demand SSB configuration information, a first frequency domain resource, a first time domain resource, a first SSB period, a number of periods of consecutive transmission of the first SSB, and a number of transmission times of the first SSB; The configuration information of the first set of SSBs indicates a manner of transmitting the on-demand SSBs at the first secondary cell, the first frequency domain resource indicates frequency domain resources used for transmitting the on-demand SSBs at the first secondary cell, the first time domain resource indicates time domain resources used for transmitting the on-demand SSBs at the first secondary cell, the first SSB period is an SSB period used for transmitting the on-demand SSBs at the first secondary cell, the first number of consecutive SSBs is a number of consecutive SSBs transmitted at the first secondary cell, and the first number of SSB transmissions is a number of times of transmitting the on-demand SSBs at the first secondary cell.

22. The method according to any one of claims 17-21, characterized by, Before receiving the first DCI, the method further includes: receiving the on-demand SSB configuration information.

23. The method of claim 22, wherein, The receiving of the on-demand SSB configuration information includes: receiving radio resource control (RRC) signaling, the RRC signaling indicating the on-demand SSB configuration information.

24. The method of claim 23, wherein, The RRC signaling includes: an RRC connection message, an RRC reconfiguration message, an RRC setup message, or an RRC reestablishment message.

25. The method of any one of claims 22-24, wherein, The on-demand SSB configuration information includes at least one of: an index of the on-demand SSB configuration information, frequency domain resources, time domain resources, candidate values of an SSB period, candidate values of a number of consecutive SSBs, and candidate values of a number of SSB transmissions, the candidate values of the number of consecutive SSBs including at least one number of consecutive SSBs, and the candidate values of the number of SSB transmissions including at least one number of SSB transmissions.

26. The method of claim 25, wherein, The on-demand SSB configuration information further includes: an identifier of a secondary cell, the secondary cell including the first secondary cell.

27. The method of any one of claims 22-24, wherein, The first DCI further indicates first-type configuration information, the first-type configuration information indicating a manner of transmitting the on-demand SSBs at the first secondary cell, and second-type configuration information being the on-demand SSB configuration information. The first-type configuration information is all or partially included in the second-type configuration information.

28. The method of any one of claims 17-25, wherein, The method further includes: receiving a second DCI, the second DCI indicating deactivation of the on-demand SSBs at the first secondary cell.

29. The method of claim 28, wherein, The second DCI is scrambled using a preset radio network temporary identifier (RNTI), the preset RNTI indicating that the second DCI is used for the on-demand SSBs. The second DCI includes an indication field, the indication field indicating resources used for transmitting the on-demand SSBs at the first secondary cell, and a preset value of the indication field indicating deactivation of the on-demand SSBs.

30. The method of claim 29, wherein, The indication field includes: at least one of a field indicating frequency domain resources, a field indicating time domain resources, a field indicating an SSB period, and a field indicating a first set of on-demand SSB configuration information, the first set of on-demand SSB configuration information indicating a manner of transmitting the on-demand SSBs at the first secondary cell.

31. The method of claim 29 or 30, wherein, The second DCI further includes cross-carrier scheduling information, the cross-carrier scheduling information indicating that the second DCI is used for the first secondary cell.

32. A network device, comprising: The apparatus includes: one or more processors and a memory, the memory configured to store program code. The processor is configured to execute the program code to enable the network device to implement the method for implementing on-demand SSBs according to any one of claims 1 to 16.

33. A terminal, comprising: Comprising: one or more processors, memories, and touch screens; The memory is configured to store program code; The processor is configured to execute the program code to enable the terminal to implement the method for implementing on-demand SSBs according to any one of claims 17 to 31.

34. A computer-readable storage medium, characterized in that, instructions stored thereon that, when executed on an electronic device, cause the electronic device to perform the method for implementing on-demand SSBs according to any one of claims 1 to 31.

35. A computer program product, characterised in that, instructions stored thereon that, when executed on an electronic device, cause the electronic device to perform the method for implementing on-demand SSBs according to any one of claims 1 to 31.

36. A chip system, characterized by Comprising: at least one processor and an interface configured to receive code instructions and transmit the code instructions to the at least one processor; The at least one processor executes the code instructions to implement the method for implementing on-demand SSBs according to any one of claims 1 to 31.

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