Method for implementing on-demand SSB and related apparatus

Abstract

The present application provides 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 secondary cells of the carrier aggregation comprise a first secondary cell. The method comprises: indicating on-demand SSB configuration information to the terminal; and, on the basis of a media access control control element (MAC CE), instructing the terminal to activate an on-demand SSB in the first secondary cell. The network device indicates the on-demand SSB configuration information to the terminal, thereby facilitating accurate reception of the on-demand SSB by the terminal. On the basis of the MAC CE, the network device instructs the terminal to activate the on-demand SSB in the first secondary cell, so that the network device can transmit the on-demand SSB, thereby reducing energy consumption of the mobile communication network.

Description

Method for implementing on-demand SSB and related device

[0001] The present application claims priority to the Chinese patent application No. 2024113776300, 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, and 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, and more frequency resources need to be used, 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 synchronization signal and physical broadcast channel block (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 on-demand SSB configuration information to the terminal, and indicating to the terminal to activate the on-demand SSB in the first secondary cell based on a medium access control control element (MAC CE). The network device indicates the on-demand SSB configuration information to the terminal, which is conducive to the terminal accurately receiving the on-demand SSB, and indicates to the terminal to activate the on-demand SSB in the first secondary cell based on the MAC CE, so that the network device can transmit the on-demand SSB, thereby achieving the purpose of reducing the energy consumption of mobile communication network.

[0008] In some implementations, indicating to the terminal to activate the on-demand SSB in the first secondary cell based on the MAC CE comprises: sending a first MAC CE to the terminal, the first MAC CE indicating to activate the first secondary cell and activate the on-demand SSB in the first secondary cell. This way activates the first secondary cell and the on-demand SSB at the same time, and gives the MAC CE a new function on the basis of activating the secondary cell through the MAC CE, that is, also activates the on-demand SSB, which has high compatibility with existing communication standards and is easy to implement.

[0009] In some implementations, the lowest bit of the first MAC CE is a reserved bit, and other bits of the first MAC CE respectively correspond to one secondary cell, and a first bit of the other bits of the first MAC CE indicates the first secondary cell, and the first bit being a first value indicates to activate the first secondary cell and to activate the on-demand SSB at the first secondary cell. This way is highly consistent with the way of activating a secondary cell in the existing communication standard, has less change to the communication system, and has the characteristics of easy implementation.

[0010] In some implementations, the method further includes: sending, to the terminal, a second MAC CE, the second MAC CE indicating to deactivate the first secondary cell and to deactivate the on-demand SSB at the first secondary cell, the lowest bit of the second MAC CE being a reserved bit, and other bits of the second MAC CE respectively corresponding to one secondary cell, and a first bit of the other bits of the second MAC CE indicating the first secondary cell, and the first bit being a second value indicating to deactivate the first secondary cell and to deactivate the on-demand SSB at the first secondary cell. This way of deactivating the on-demand SSB is highly consistent with the way of deactivating a secondary cell in the existing communication standard, and is easy to implement.

[0011] In some implementations, the lowest bit of the first MAC CE is a third value indicating that the first MAC CE is used to activate a secondary cell and an on-demand SSB, and other bits of the first MAC CE respectively correspond to one secondary cell, and a first bit of the other bits of the first MAC CE indicates the first secondary cell, and the first bit being a first value indicates to activate the first secondary cell and to activate the on-demand SSB at the first secondary cell. This way of activation can be distinguished from the way of activating a secondary cell alone by indicating to activate the on-demand SSB and the secondary cell through the lowest bit being the third value.

[0012] In some implementations, the method further includes: sending, to the terminal, a first signaling, the first signaling indicating to deactivate the on-demand SSB at the first secondary cell, and the first signaling being other signaling than the MAC CE. This way of deactivation can achieve to deactivate the on-demand SSB alone (not bound to deactivate the secondary cell any more), and has certain flexibility.

[0013] In some implementations, the method of indicating, to the terminal based on the MAC CE, to activate the on-demand SSB at the first secondary cell includes: sending, to the terminal, a first MAC CE, the first MAC CE indicating to activate the on-demand SSB at the first secondary cell. This way can activate the on-demand SSB alone (not bound to activate the secondary cell any more), and has certain flexibility.

[0014] In some embodiments, the lowest bit of the first MAC CE is a third value indicating that the first MAC CE is used for the on-demand SSB, and other bits respectively correspond to one secondary cell, and a first bit of the other bits indicates the first secondary cell, and the first bit is a first value indicating that the on-demand SSB of the first secondary cell is activated. In this way, the originally reserved lowest bit is used to indicate that the first MAC CE is used for the on-demand SSB, and based on the first bit being the first value, the on-demand SSB of the first secondary cell indicated by the first bit is activated, without being bound to other functions of the MAC CE, which has higher flexibility, and because it is still indicated by the values of the bits of the MAC CE, it has higher compatibility with existing communication standards.

[0015] In some embodiments, the method further includes: sending a second MAC CE to the terminal, the second MAC CE indicating that the on-demand SSB of the first secondary cell is deactivated, and the lowest bit of the second MAC CE is a third value indicating that the second MAC CE is used for the on-demand SSB, and other bits of the second MAC CE respectively correspond to one secondary cell, and a first bit of the other bits of the second MAC CE indicates the first secondary cell, and the first bit of the other bits of the second MAC CE is a second value indicating that the on-demand SSB of the first secondary cell is deactivated. In this way, the originally reserved lowest bit is used to indicate that the first MAC CE is used for the on-demand SSB, and based on the first bit being the second value, the on-demand SSB of the first secondary cell indicated by the first bit is deactivated, which has higher flexibility while being compatible with existing communication standards.

[0016] In some embodiments, based on the MAC CE indicating to the terminal that the on-demand SSB of the first secondary cell is activated, the method includes: sending a MAC sub PDU to the terminal, the MAC sub PDU including the first MAC CE, and a subheader of the MAC sub PDU indicating that the first MAC CE is used for the on-demand SSB and the size of the first MAC CE, and the first MAC CE indicating that the on-demand SSB of the first secondary cell is activated. By using the subheader of the MAC sub PDU to indicate the size of the MAC CE and the on-demand SSB, higher flexibility is achieved.

[0017] In some embodiments, the lowest bit of the first MAC CE is a reserved bit, and other bits respectively correspond to one secondary cell, and a first bit of the other bits indicates the first secondary cell, and the first bit is a first value indicating that the on-demand SSB of the first secondary cell is activated.

[0018] In some implementations, the method further includes: sending, to the terminal, a second MAC CE, the second MAC CE indicating to deactivate the on-demand SSB at the first secondary cell, a lowest bit of the second MAC CE being a reserved bit, other bits of the second MAC CE respectively corresponding to a secondary cell, a first bit of the other bits of the second MAC CE indicating the first secondary cell, the first bit of the other bits of the second MAC CE being a second value indicating to deactivate the on-demand SSB at the first secondary cell.

[0019] In some implementations, a value of the lowest bit of the first MAC CE indicates a first set of on-demand SSB configuration information or a second set of on-demand SSB configuration information, and on-demand SSBs are transmitted based on the on-demand SSB configuration information indicated by the lowest bit at the secondary cell at which the on-demand SSBs are activated, the other bits of the first MAC CE respectively corresponding to a secondary cell, a first bit of the other bits indicating the first secondary cell, the first bit being a first value indicating to activate the on-demand SSBs at the first secondary cell. In addition to activating the on-demand SSBs at at least one secondary cell, this activation manner can also indicate the configuration information used by the activated on-demand SSBs, if the lowest bit can support selection of two sets of configuration information.

[0020] In some implementations, the method further includes: sending, to the terminal, a second MAC CE, the second MAC CE indicating to deactivate the on-demand SSB at the first secondary cell, other bits of the second MAC CE except the lowest bit respectively corresponding to a secondary cell, a first bit of the other bits of the second MAC CE indicating the first secondary cell, the first bit of the other bits of the second MAC CE being a second value indicating to deactivate the on-demand SSB at the first secondary cell.

[0021] In some implementations, a value of the lowest bit of the second MAC CE indicates a first set of on-demand SSB configuration information or a second set of on-demand SSB configuration information, and on-demand SSBs are transmitted based on the on-demand SSB configuration information indicated by the lowest bit at the secondary cell at which the on-demand SSBs are activated. The meaning of indicating the first set of on-demand SSB configuration information or the second set of on-demand SSB configuration information in the second MAC CE is that it is possible for the second MAC CE to indicate to deactivate the on-demand SSBs at only a part of the secondary cells and activate the on-demand SSBs at another part of the secondary cells, in which case the configuration information used by the activated on-demand SSBs can still be indicated.

[0022] In some implementations, the lowest bit of the first MAC CE is a third value indicating to activate the on-demand SSBs at the secondary cell, the secondary cell including the first secondary cell. This manner facilitates batch activation of the on-demand SSBs at the secondary cells.

[0023] In some implementations, the other bits respectively represent on-demand SSB configuration information used by the corresponding secondary cells, a first bit of the other bits is of a fifth value to indicate that a first set of on-demand SSB configuration information is used in the first secondary cell, and the first bit is of a sixth value to indicate that a second set of on-demand SSB configuration information is used in the first secondary cell. In the case of activating on-demand SSBs of secondary cells in batches, the on-demand SSB configuration information used by each secondary cell can be further indicated, for example, each secondary cell can be respectively indicated to select a set of configuration information from the two sets of configuration information, and each secondary cell can be individually indicated the configuration information, which is beneficial to use different configuration information for different activated SSBs of secondary cells.

[0024] In some implementations, the method further includes: sending, to the terminal, a second MAC CE, the second MAC CE indicating deactivation of the on-demand SSB in the first secondary cell, and a lowest bit of the second MAC CE being of a fourth value to indicate deactivation of the on-demand SSB in the secondary cell, the secondary cell including the first secondary cell. This manner facilitates deactivation of on-demand SSBs of secondary cells in batches.

[0025] In some implementations, a lowest bit of the first MAC CE is a reserved bit, and among other bits of the first MAC CE except the lowest bit, a first quantity of the other bits respectively represent secondary cells, and a first bit of the first quantity of the other bits represents the first secondary cell, and the first bit being of a first value to indicate activation of the on-demand SSB in the first secondary cell.

[0026] In some implementations, a second quantity of the other bits in the first MAC CE respectively correspond to represent a set of on-demand SSB configuration information, a first bit of the second quantity of the other bits represents a first set of on-demand SSB configuration information, and a first bit of a second preset quantity of the other bits being of a seventh value to indicate that the first set of on-demand SSB configuration information is used in the secondary cell in which the on-demand SSB is activated, and the second quantity of the other bits is non-overlapping with the first quantity of the other bits. Using the first quantity of bits and the second quantity of bits, more sets of on-demand SSB configuration information can be supported, for example, 8 bits can support indication of a set of 8 sets of on-demand SSB configuration information.

[0027] In some implementations, the method further includes: sending, to the terminal, a second MAC CE, the second MAC CE indicating deactivation of the on-demand SSB in the first secondary cell, and a lowest bit of the second MAC CE being a reserved bit, and among other bits of the second MAC CE except the lowest bit, a first quantity of the other bits respectively represent secondary cells, a first bit of the first quantity of the other bits represents the first secondary cell, and the first bit being of a second value to indicate deactivation of the on-demand SSB in the first secondary cell.

[0028] In some embodiments, the second quantity of other bits in the second MAC CE respectively correspond to a set of on-demand SSB configuration information, a first bit of the second quantity of other bits indicates a first set of on-demand SSB configuration information, and a first bit of the second preset quantity of other bits is a seventh value to indicate that the first set of on-demand SSB configuration information is used in the activated on-demand SSB of the secondary cell.

[0029] In some embodiments, the first quantity of other bits is arranged in a lower order than the second quantity of other bits.

[0030] In some embodiments, the first MAC CE includes a first part of bytes with a length of M / 2, a lowest bit of the first part of bytes is a reserved bit, and other bits in the first part of bytes respectively indicate secondary cells, a first bit of the other bits indicates a first secondary cell, and the first bit is a first value to indicate that an on-demand SSB is activated in the first secondary cell, and M is a number of bytes included in the first MAC CE.

[0031] In some embodiments, the first MAC CE further includes a second part of bytes with a length of M / 2, the first part of bytes is non-overlapping with the second part of bytes, a lowest bit of the second part of bytes is a reserved bit, and other bits in the second part of bytes respectively indicate on-demand SSB configuration information used by secondary cells, a first bit of the other bits in the second part of bytes is a fifth value to indicate that a first set of on-demand SSB configuration information is used in the first secondary cell, and a first bit of the other bits in the second part of bytes is a sixth value to indicate that a second set of on-demand SSB configuration information is used in the first secondary cell. In this way, the first secondary cell has a higher flexibility with one bit corresponding to an indication of whether an on-demand SSB is activated and another bit corresponding to an indication of on-demand SSB configuration information used.

[0032] In some embodiments, the method further includes: sending, to the terminal, a second MAC CE indicating that the on-demand SSB is deactivated in the first secondary cell, the second MAC CE including a first part of bytes with a length of M / 2, a lowest bit of the first part of bytes being a reserved bit, and other bits in the first part of bytes respectively indicating secondary cells, a first bit of the other bits in the first part of bytes indicating the first secondary cell, and the first bit in the second MAC CE being a second value to indicate that the on-demand SSB is deactivated in the first secondary cell.

[0033] In some implementations, the second MAC CE further includes a second partial byte with a length of M / 2, the first partial byte and the second partial byte are non-overlapping, the lowest bit of the second partial byte is a reserved bit, and other bits in the second partial byte of the second MAC CE respectively represent the on-demand SSB configuration information used by the secondary cell, and the values of the other bits in the second partial byte of the second MAC CE represent that the first set of on-demand SSB configuration information or the second set of on-demand SSB configuration information is used in the corresponding activated secondary cell.

[0034] In some implementations, the first partial byte is arranged in a lower order than the second partial byte.

[0035] In some implementations, based on the MAC CE, the terminal is further indicated that the on-demand SSB is activated in the first secondary cell before the on-demand SSB is activated in the first secondary cell, and the size of the first MAC CE is obtained based on a number of carrier aggregations used by the carrier aggregation, the number of carrier aggregations being a total number of primary cells and secondary cells, or the number of carrier aggregations being a total number of cells included in a primary cell group and cells included in a secondary cell group, so that the size of the matched first MAC CE can be configured based on the number of used cells, energy saving can be achieved, and the needs of the carrier aggregation scenario can be met.

[0036] In some implementations, the terminal is indicated the on-demand SSB configuration information by using radio resource control (RRC) signaling, and the configuration information can be flexibly indicated.

[0037] In some implementations, the on-demand SSB configuration information includes at least one of index information of the secondary cell, index of the on-demand SSB configuration information, time domain resource, frequency domain resource, SSB period, number of SSB transmission periods, and number of SSB transmissions, so that the terminal can accurately receive the on-demand SSB.

[0038] In some implementations, the index information of the secondary cell includes index information of at least one secondary cell, and the at least one secondary cell includes the first secondary cell. That is, the on-demand SSB configuration information can be indicated for use by one secondary cell or multiple secondary cells.

[0039] In some implementations, before the terminal is indicated the on-demand SSB configuration information, the network energy saving capability of the first secondary cell and / or the terminal is obtained to avoid unnecessary energy consumption.

[0040] The second aspect of the present application provides a method for implementing on-demand SSB, applied to a terminal, the terminal communicates with a network device based on carrier aggregation, a secondary cell of the carrier aggregation includes a first secondary cell, and the method includes: receiving on-demand SSB configuration information indicated by the network device; receiving a first MAC CE sent by the network device, the first MAC CE indicating that the on-demand SSB is activated in the first secondary cell; and receiving an SSB based on the on-demand SSB configuration information and the first MAC CE.

[0041] In some implementations, the first MAC CE indicates that the on-demand SSB is activated in the first secondary cell, including: the first MAC CE indicating that the first secondary cell is activated and the on-demand SSB is activated in the first secondary cell, or the first MAC CE indicating that the on-demand SSB is activated in the first secondary cell.

[0042] In some implementations, the lowest bit of the first MAC CE is a reserved bit, and other bits respectively correspond to one secondary cell, the first bit in the other bits indicates the first secondary cell, and the value of the first bit indicates that the first secondary cell is activated and the on-demand SSB is activated in the first secondary cell.

[0043] In some implementations, the method further includes: sending a second MAC CE to the terminal, the second MAC CE indicating that the first secondary cell is deactivated and the on-demand SSB is deactivated in the first secondary cell, the lowest bit of the second MAC CE is a reserved bit, other bits of the second MAC CE respectively correspond to one secondary cell, the first bit in the other bits of the second MAC CE indicates the first secondary cell, and the first bit being a second value indicates that the first secondary cell is deactivated and the on-demand SSB is deactivated in the first secondary cell.

[0044] In some implementations, the lowest bit of the first MAC CE is a third value indicating that the first MAC CE is used to activate the secondary cell and the on-demand SSB, other bits respectively correspond to one secondary cell, the first bit in the other bits indicates the first secondary cell, and the first bit being a first value indicates that the first secondary cell is activated and the on-demand SSB is activated in the first secondary cell.

[0045] In some implementations, the method further includes: receiving first signaling sent by the network device, the first signaling indicating that the on-demand SSB is deactivated in the first secondary cell, and the first signaling being other signaling than the MAC CE.

[0046] In some implementations, the lowest bit of the first MAC CE is a third value indicating that the first MAC CE is used for the on-demand SSB, other bits respectively correspond to one secondary cell, the first bit in the other bits indicates the first secondary cell, and the first bit being a first value indicates that the on-demand SSB is activated in the first secondary cell.

[0047] In some embodiments, the receiving the first MAC CE sent by the network device and indicating to activate the on-demand SSB on the first secondary cell comprises: receiving a MAC sub PDU sent by the network device, the MAC sub PDU comprising the first MAC CE, and a subheader of the MAC sub PDU indicating that the first MAC CE is used for the on-demand SSB and a size of the first MAC CE, the first MAC CE indicating to activate the on-demand SSB on the first secondary cell.

[0048] In some embodiments, the receiving the first MAC CE sent by the network device and indicating to activate the on-demand SSB on the first secondary cell comprises: receiving a MAC sub PDU sent by the network device, the MAC sub PDU comprising the first MAC CE, and a subheader of the MAC sub PDU indicating that the first MAC CE is used for the on-demand SSB and a size of the first MAC CE, the first MAC CE indicating to activate the on-demand SSB on the first secondary cell.

[0049] In some embodiments, the first MAC CE comprises: a lowest bit of the first MAC CE being a reserved bit, other bits of the first MAC CE respectively corresponding to one secondary cell, a first bit of the other bits of the first MAC CE indicating the first secondary cell, and the first bit being a first value indicating to activate the on-demand SSB on the first secondary cell.

[0050] In some embodiments, the receiving the first MAC CE sent by the network device and indicating to activate the on-demand SSB on the first secondary cell comprises: receiving a MAC sub PDU sent by the network device, the MAC sub PDU comprising the first MAC CE, and a subheader of the MAC sub PDU indicating that the first MAC CE is used for the on-demand SSB and a size of the first MAC CE, the first MAC CE indicating to activate the on-demand SSB on the first secondary cell.

[0051] In some embodiments, the first MAC CE comprises: a lowest bit of the first MAC CE being a reserved bit, other bits of the first MAC CE respectively corresponding to one secondary cell, a first bit of the other bits of the first MAC CE indicating the first secondary cell, and the first bit being a first value indicating to activate the on-demand SSB on the first secondary cell.

[0052] In some embodiments, further comprising: receiving a second MAC CE sent by the network device, the second MAC CE indicating to deactivate the on-demand SSB at the first secondary cell, and other bits of the second MAC CE except the lowest bit correspond to represent one secondary cell respectively, and a first bit of the other bits of the second MAC CE represents the first secondary cell, and the first bit of the other bits of the second MAC CE is of a second value to indicate to deactivate the on-demand SSB at the first secondary cell.

[0053] In some embodiments, the value of the lowest bit of the second MAC CE indicates the first set of on-demand SSB configuration information or the second set of on-demand SSB configuration information, and on the secondary cell on which the on-demand SSB is activated, the on-demand SSB is transmitted based on the on-demand SSB configuration information indicated by the lowest bit.

[0054] In some embodiments, the lowest bit of the first MAC CE is of a third value to indicate to activate the on-demand SSB at the secondary cell, and the secondary cell includes the first secondary cell.

[0055] In some embodiments, the other bits respectively represent the on-demand SSB configuration information used by the corresponding secondary cell, and a first bit of the other bits is of a fifth value to indicate to use the first set of on-demand SSB configuration information at the first secondary cell, and the first bit is of a sixth value to indicate to use the second set of on-demand SSB configuration information at the first secondary cell.

[0056] In some embodiments, further comprising: receiving a second MAC CE sent by the network device, the second MAC CE indicating to deactivate the on-demand SSB at the first secondary cell, and the lowest bit of the second MAC CE is of a fourth value to indicate to deactivate the on-demand SSB at the secondary cell, and the secondary cell includes the first secondary cell.

[0057] In some embodiments, the lowest bit of the first MAC CE is a reserved bit, and among the other bits except the lowest bit, a first number of the other bits respectively represent the secondary cell, a first bit of the first number of the other bits represents the first secondary cell, and the first bit is of a first value to indicate to activate the on-demand SSB at the first secondary cell.

[0058] In some embodiments, a second number of the other bits in the first MAC CE respectively correspond to represent a set of on-demand SSB configuration information, a first bit of the second number of the other bits represents the first set of on-demand SSB configuration information, a first bit of a second preset number of the other bits is of a seventh value to indicate to use the first set of on-demand SSB configuration information at the secondary cell on which the on-demand SSB is activated, and the second number of the other bits does not overlap with the first number of the other bits.

[0059] In some embodiments, the method further includes: receiving a second MAC CE sent by the network device, the second MAC CE indicating to deactivate the on-demand SSB on the first secondary cell, a lowest bit of the second MAC CE being a reserved bit, and a first quantity of bits of the second MAC CE other than the lowest bit each indicating a secondary cell, a first bit of the first quantity of bits indicating the first secondary cell, and the first bit being of a second value indicating to deactivate the on-demand SSB on the first secondary cell.

[0060] In some embodiments, a second quantity of bits of the second MAC CE each correspond to a set of on-demand SSB configuration information, a first bit of the second quantity of bits indicating a first set of on-demand SSB configuration information, and a first bit of a second preset quantity of bits being of a seventh value indicating to use the first set of on-demand SSB configuration information on the activated on-demand SSB secondary cell, the second quantity of bits not overlapping with the first quantity of bits.

[0061] In some embodiments, the first quantity of bits is lower in order than the second quantity of bits.

[0062] In some embodiments, the first MAC CE includes a first part of M / 2 bytes, a lowest bit of the first part of bytes being a reserved bit, and other bits of the first part of bytes each indicating a secondary cell, a first bit of the other bits indicating the first secondary cell, and the first bit being of a first value indicating to activate the on-demand SSB on the first secondary cell, M being a number of bytes included in the first MAC CE.

[0063] In some embodiments, the first MAC CE further includes a second part of M / 2 bytes, the first part of bytes not overlapping with the second part of bytes, a lowest bit of the second part of bytes being a reserved bit, and other bits of the second part of bytes each indicating on-demand SSB configuration information used by a secondary cell, a first bit of the other bits of the second part of bytes being of a fifth value indicating to use a first set of on-demand SSB configuration information on the first secondary cell, and a first bit of the other bits of the second part of bytes being of a sixth value indicating to use a second set of on-demand SSB configuration information on the first secondary cell.

[0064] In some embodiments, the method further includes: receiving a second MAC CE sent by the network device, the second MAC CE indicating to deactivate the on-demand SSB on the first secondary cell, the second MAC CE including a first part of bytes with a length of M / 2, the lowest bit in the first part of bytes being a reserved bit, other bits in the first part of bytes respectively indicating a secondary cell, a first bit in the other bits in the first part of bytes indicating the first secondary cell, and the first bit in the second MAC CE being the second value indicating to deactivate the on-demand SSB on the first secondary cell.

[0065] In some embodiments, the second MAC CE further includes a second part of bytes with a length of M / 2, the first part of bytes and the second part of bytes being non-overlapped, the lowest bit in the second part of bytes being a reserved bit, and other bits in the second part of bytes of the second MAC CE respectively indicating on-demand SSB configuration information used by a secondary cell, and values of the other bits in the second part of bytes of the second MAC CE indicating to use the first set of on-demand SSB configuration information or the second set of on-demand SSB configuration information on a corresponding activated secondary cell.

[0066] In some embodiments, the first part of bytes is arranged in a lower order than the second part of bytes.

[0067] In some embodiments, receiving the on-demand SSB configuration information indicated by the network device includes: receiving a radio resource control (RRC) signaling sent by the network device, the RRC signaling being used to indicate the on-demand SSB configuration information.

[0068] In some embodiments, the on-demand SSB configuration information includes at least one of index information of a secondary cell, an index of SSB configuration information, time domain resource, frequency domain resource, SSB periodicity, periodicity of SSB transmission, and number of times of SSB transmission.

[0069] In some embodiments, the index information of the secondary cell includes index information of at least one secondary cell, the at least one secondary cell including the first secondary cell.

[0070] A third aspect of the present application provides a network device, including: one or more processors, and a memory; the memory is used to store program code; the processor is used to run the program code, so that the network device implements the method for implementing on-demand SSB provided by the first aspect of the present application.

[0071] A fourth aspect of the present application provides a terminal, including: one or more processors, a memory, and a touch screen; the memory is used to store program code; the processor is used to run the program code, so that the terminal implements the method for implementing on-demand SSB provided by the second aspect of the present application.

[0072] The fifth aspect of the present application provides a computer readable storage medium, having stored thereon instructions which, when executed on an electronic device, cause the electronic device to perform the method for implementing on-demand SSB according to the first aspect or the second aspect of the present application.

[0073] The sixth aspect of the present application provides a computer program product, having stored thereon instructions which, when executed on an electronic device, cause the electronic device to implement the method for implementing on-demand SSB according to the first aspect or the second aspect of the present application.

[0074] The seventh aspect of the present application provides a chip system, comprising: at least one processor and an interface, the interface being configured to receive code instructions and transmit the code instructions to the at least one processor; and the at least one processor being configured to execute 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

[0075] 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 embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0076] FIG. 1 is an example diagram of transmitting SSB on demand in different scene flows according to an embodiment of the present application;

[0077] FIG. 2 is a flowchart of a method for implementing on-demand SSB according to an embodiment of the present application;

[0078] FIG. 3 is an example diagram of the structure of a sub PDU according to an embodiment of the present application;

[0079] FIG. 4 is an example diagram of a MAC CE for on-demand SSB according to an embodiment of the present application;

[0080] FIG. 5a is an example diagram of a MAC CE indicating activation of a secondary cell according to an embodiment of the present application;

[0081] FIG. 5b is an example diagram of another MAC CE indicating activation of on-demand SSB according to an embodiment of the present application;

[0082] FIG. 6 is an example diagram of another MAC CE for on-demand SSB according to an embodiment of the present application;

[0083] FIG. 7 is an example diagram of another MAC CE for on-demand SSB according to an embodiment of the present application;

[0084] FIG. 8 is an example diagram of a MAC CE for on-demand SSB according to an embodiment of the present application;

[0085] FIG. 9 is a flow chart of a method for implementing on-demand SSB according to an embodiment of the present application;

[0086] FIG. 10 is an example diagram of a MAC CE for on-demand SSB according to an embodiment of the present application;

[0087] FIG. 11 is an example diagram of a MAC CE for on-demand SSB according to an embodiment of the present application;

[0088] FIG. 12 is an example diagram of a MAC CE for on-demand SSB according to an embodiment of the present application;

[0089] FIG. 13 is a flow chart of a method for implementing on-demand SSB according to an embodiment of the present application;

[0090] FIG. 14 is an example diagram of a MAC CE for on-demand SSB according to an embodiment of the present application;

[0091] FIG. 15 is a flow chart of a method for implementing on-demand SSB according to an embodiment of the present application;

[0092] FIG. 16 is an example diagram of a MAC CE for on-demand SSB according to an embodiment of the present application;

[0093] FIG. 17 is an example diagram of a structure of a terminal according to an embodiment of the present application;

[0094] FIG. 18 is an example diagram of a structure of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0095] The terms “first”, “second”, and “third” and the like in the description and in the claims of the present application and the drawings are used to distinguish between similar objects, not to denote a particular order.

[0096] In the embodiments of the present application, the words “in some embodiments” or “for example” are used to indicate an example, an illustration, or an explanation, and should not be interpreted as being more preferred or having more advantages than other embodiments or designs.

[0097] A 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.

[0098] Synchronization signal and physical broadcast channel block (SSB) is used for terminal and network device to establish downlink synchronization, even in the case of no access or measurement or data transmission demand of terminal, in order to maintain the function of wireless access, the network needs to broadcast SSB according to a certain period, therefore, the energy consumption of SSB transmission is a key part of static energy consumption.

[0099] In order to reduce energy consumption, one of the improvement directions is to change the way of periodically broadcasting SSB to the way of on-demand SSB. On-demand SSB can be understood as transmitting SSB from network device to terminal in the case of demand, rather than periodically broadcasting SSB.

[0100] In order to be able to realize network energy saving under the condition of guaranteeing normal communication, on-demand SSB is applied in the scene of carrier aggregation (CA).

[0101] Taking FIG. 1 as an example, in the process of configuring 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, and in the valid SSB opportunity, network device sends SSB.

[0102] In the process of activating 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, and SSB is sent in each of them.

[0103] After completing the activation of SCell, SSB is transmitted in a period of 640 milliseconds, in a SSB burst, two valid SSB opportunities, SSB0 and SSB1, are included, and SSB is sent in each of them.

[0104] It can be seen that in the process of configuring SCell, a small amount of SSB is transmitted in a period of moderate length to meet the demand of terminal for cell measurement, in the process of activating SCell, a plurality of SSBs are transmitted in a shorter period to reduce the activation delay, and after completing the activation of SCell, a small amount of SSB is transmitted in a longer period for cell measurement and downlink synchronization, so as to realize the purpose of transmitting SSB on demand.

[0105] 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 occasion and the bearing resource of the 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 resource for the terminal.

[0106] The embodiments of the present application provide a method for implementing on-demand SSB, which is applied to the CA scenario of a mobile communication system.

[0107] 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, without any limitation.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] In the embodiments of the present application, the expression "activating the on-demand SSB" is equivalent to the expression "indicating the transmission of the on-demand SSB", that is, "activation" is equivalent to "indicating the transmission of".

[0114] FIG. 2 is a method for implementing an on-demand SSB according to an embodiment of the present application, including the following steps:

[0115] S11, the network device indicates the on-demand SSB configuration information to the terminal.

[0116] In some implementations, the network device configures the information of the on-demand SSB to the terminal using radio resource control (RRC) signaling.

[0117] In some implementations, the network device configures the information of the on-demand SSB to the terminal after confirming that the terminal has a network energy saving capability or supports the on-demand SSB capability. The network energy saving capability of the terminal has been reported to the network device before S11.

[0118] The RRC signaling includes but is not limited to RRC connection messages, RRC reconfiguration messages, RRC setup messages, and RRC reestablishment messages, etc.

[0119] The on-demand SSB configuration information includes at least one of the following:

[0120] 1, the index information of the SCell.

[0121] The index information of the SCell indicates the SCell to which the on-demand SSB is applied, i.e., the information of the on-demand SSB indicated by the network device is applicable to the SCell. The index information of the SCell includes the index of at least one SCell. That is, the on-demand SSB configuration information is applicable to at least one SCell.

[0122] In some implementations, because the on-demand SSB is applied to each SCell, the network terminal configures the terminal with the information of the on-demand SSB after confirming that the SCell has network energy saving capability. The network energy saving capability of the SCell has been reported to the network device before S11.

[0123] 2, the index of the on-demand SSB configuration information.

[0124] For example, in FIG. 1, the transmission of the SSB is different in different cases, and the configuration information required by different transmission modes 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 SSB transmission modes is referred to as a set of SSB configuration information, and the SSB configuration index indicates which set of SSB configuration information is configured.

[0125] 3, time domain resource.

[0126] The time domain resource is the time domain resource used for transmitting the SSB.

[0127] Specifically, the time domain resource includes at least one of the specific time domain resource, the SSB pattern, and the valid SSB opportunity in the SSB burst.

[0128] In some implementations, the specific time domain resource is at least one of a starting slot and a starting symbol.

[0129] In 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 when the specific time domain resource is the starting slot, the offset value indicates the offset slot between two consecutive SSB opportunities. When the specific time domain resource is the starting symbol, the offset value indicates the offset symbol between two consecutive SSB opportunities. When the specific time domain resource is the starting slot and the starting symbol, the offset value indicates the offset slot and the offset symbol between two consecutive SSB opportunities.

[0130] SSB pattern is used to indicate the carrier frequency and the subcarrier spacing used for transmitting SSB. The transmission manners specified by 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 the applicable frequency band, subcarrier spacing and time domain location of SSB opportunity for transmitting SSB.

[0131] The SSB opportunity effective in SSB burst refers to the opportunity actually used for transmitting SSB in a SSB burst of one SSB pattern. The SSB opportunity effective in SSB burst can be indicated by a bitmap.

[0132] The SSB opportunity effective in SSB burst refers to the opportunity actually used for transmitting SSB in a SSB burst. In combination with SSB pattern, the SSB opportunity effective in SSB burst refers to the opportunity actually used for transmitting SSB in a SSB burst under one SSB pattern. The SSB opportunity effective in SSB burst can be indicated by a bitmap.

[0133] 4, frequency domain resource.

[0134] The frequency domain resource indicates the absolute radio frequency channel number (ARFCN) used for SSB transmission.

[0135] 5, SSB period.

[0136] In some implementations, the candidate value of SSB period is one SSB period specified in the existing communication protocol, such as 5 ms, 10 ms, 20 ms, 40 ms, 80 ms and 160 ms, etc. The SSB period is one of the candidate values of SSB period. The candidate value of SSB period can also be the time 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.

[0137] In other implementations, the SCell applying on-demand SSB is the primary cell (PCell) of other terminals, in which case the candidate value of SSB period is the SSB period used by the PCell of the terminal, or the candidate value of SSB period is not less than the SSB period used by the PCell.

[0138] 6, number of SSB transmission periods.

[0139] The number of SSB transmission periods indicates the number of periods in which the SSB is transmitted, that is, the number of SSB periods used to transmit the SSB. After the number of SSB transmission periods is exceeded, the network device stops transmitting the SSB.

[0140] 7. The number of SSB transmissions.

[0141] The number of SSB transmissions indicates the number of times the SSB is transmitted.

[0142] It can be understood that the on-demand SSB information configured by the network device for the terminal is used for the terminal to receive the SSB. After the on-demand SSB information is configured, the network device also needs to activate the on-demand SSB function to inform the terminal to start performing the on-demand SSB function, and the step of activating the SSB is as S12.

[0143] S12, the network device instructs the terminal to activate the on-demand SSB based on a medium access control (MAC) control element (CE).

[0144] Taking FIG. 3 as an example, the MAC CE is a payload part in a MAC sub-protocol data unit (sub-PDU). In addition to including a MAC CE, a MAC sub-PDU also includes a sub-header. The sub-header of the MAC sub-PDU includes a logical channel identification (LCID) field. The value of the LCID indicates the type of the sub-PDU, and the type of the sub-PDU indicates the use of the sub-PDU. In this step, the type of the sub-PDU is to instruct to activate the on-demand SSB. It can be understood that different values of the LCID represent different types of sub-PDUs. For ease of description, the MAC CE and the LCID in the same MAC sub-PDU are referred to as the corresponding MAC CE and the LCID.

[0145] Activating the on-demand SSB means that the network device will send the SSB to the terminal based on the on-demand SSB information. The purpose of activating the on-demand SSB for the terminal is to inform the terminal to receive the SSB based on the on-demand SSB information, so as to realize the transmission of the SSB in the on-demand SSB manner.

[0146] In this embodiment, any one of the first to third providing manners is used to instruct the terminal to activate the on-demand SSB.

[0147] Manner one:

[0148] The communication standard stipulates that the SCell is activated based on the MAC CE, and in the first mode, the MAC CE for activating the SCell is given a new function, that is, indicating the activation of the SCell also indicates the activation of the on-demand SSB, which is compatible with the mode of activating the SCell and has less changes to the communication standard and is easy to implement.

[0149] Taking FIG. 4 as an example, an 8-byte MAC CE includes a reserved bit R and index bits C1-C7 of the SCell. Each of the index bits C1-C7 represents the index of an SCell and further represents an SCell, for example, the index bit C1 represents the first SCell and C2 represents the second SCell.

[0150] In the case of the MAC CE of FIG. 4 for activating the SCell, R takes the value 0, indicating the reserved bit, that is, the value of R has no meaning. The value of any index bit is 1, indicating the activation of the SCell represented by the index bit, and the value of any index bit is 0, indicating the deactivation of the SCell represented by the index bit. For example, the value of the MAC CE shown in FIG. 4 is 00000010, indicating that the SCell represented by C1 is activated and the SCells represented by C2-C7 are not activated (i.e., deactivated).

[0151] In the embodiment, in addition to indicating the activation of the SCell, the MAC CE of FIG. 4 also indicates the activation of the on-demand SSB, in which case R takes the value 0, indicating the reserved bit, that is, the value of R has no meaning, and the value of any index bit is 0, indicating the deactivation of the SCell represented by the index bit and further indicating the deactivation of the on-demand SSB of the SCell represented by the index bit, and the value of any index bit is 1, indicating the activation of the SCell represented by the index bit and further indicating the activation of the on-demand SSB of the SCell represented by the index bit. The activation of the on-demand SSB of the SCell represented by the index bit can be understood as that the SCell represented by the index bit uses the on-demand SSB, and the deactivation of the on-demand SSB of the SCell represented by the index bit can be understood as that the SCell represented by the index bit does not use the on-demand SSB.

[0152] Taking the value of the MAC CE shown in FIG. 4 as 00000010 as another example, 00000010 indicates that the SCell represented by C1 is activated and uses the on-demand SSB, and the SCells represented by C2-C7 are not activated and do not use the on-demand SSB. In FIG. 4, Oct represents an 8-byte, and Oct 1 represents the first 8-byte.

[0153] It can be understood that, because the first mode is to assign the MAC CE for activating the SCell with the function of activating the on-demand SSB, the LCID in the subheader corresponding to the MAC CE still uses the value representing the activation of the SCell as defined in the communication standard.

[0154] The second mode:

[0155] The lowest bit in the MAC CE is no longer a reserved bit, but different values of the lowest bit represent different meanings of the indication of the MAC CE. The value 0 of the lowest bit indicates that the MAC CE is only used for activating the SCell, and the value 1 of the lowest bit indicates that the MAC CE is used for activating both the SCell and the on-demand SSB. For example, in FIG. 5a, the value of the MAC CE is 00000010, indicating that the SCell represented by C1 is activated, and the SCells represented by C2-C7 are not activated. For example, in FIG. 5b, the value of the MAC CE is 00000011, indicating that the SCell represented by C1 is activated and uses the on-demand SSB, and the SCells represented by C2-C7 are not activated and do not use the on-demand SSB.

[0156] It can be seen that the second mode is different from the first mode in that the first mode does not change the MAC CE defined in the communication standard, but assigns a new function to the MAC CE defined in the communication standard for indicating the activation of the SCell. The second mode uses the lowest bit in the MAC CE, i.e., the lowest bit is no longer a reserved bit, but different values of the lowest bit distinguish the content of the indication of the MAC CE.

[0157] In the second mode, the LCID in the subheader corresponding to the MAC CE still uses the value representing the activation of the SCell as defined in the communication standard.

[0158] The third mode:

[0159] Different values of the lowest bit in the MAC CE represent different meanings of the indication of the MAC CE, which is different from the second mode in that the value 1 of the lowest bit indicates that the MAC CE is used for activating the on-demand SSB, but does not indicate that the MAC CE is used for activating the SCell. The mode for activating the SCell still follows the definition in the communication standard.

[0160] For example, in FIG. 6, the value of the MAC CE is 00000011, indicating that the SCell represented by C1 activates (uses) the on-demand SSB, and the SCells represented by C2-C7 do not use the on-demand SSB.

[0161] In the process of configuring SCell, SCell cannot be activated, so the first and second manners bind the activation of SCell and the activation of on-demand SSB, which cannot activate on-demand SSB in the process of configuring SCell, and cannot use the on-demand SSB mode to transmit SSB in the process of configuring SCell. The third manner decouples the activation of on-demand SSB and the activation of SCell, so that on-demand SSB can be used in the process of configuring SCell, and the third manner has a wider application range.

[0162] In the third manner, the LCID in the subheader corresponding to the MAC CE uses the value specified in the communication standard to represent the activation of SCell.

[0163] It can be understood that the above manners are exemplified by 8-byte MAC CEs, and in addition thereto, the MAC CEs can be 16 bytes, 32 bytes, etc., which are not limited here. Taking the 32-byte MAC CE shown in FIG. 7 as an example, the 32-byte MAC CE activates on-demand SSB in the same manner as the 8-byte MAC CE in the above example, that is, by assigning the MAC CE a new function or based on the lowest bit, the on-demand SSB is activated.

[0164] S13, the terminal responds to the indication of activating on-demand SSB, and receives SSB based on on-demand SSB configuration information.

[0165] The terminal can implement inter-frequency radio resource management (RRM) measurement and time-frequency synchronization processes based on the received SSB.

[0166] It can be understood that after activating on-demand SSB, the on-demand SSB function of SCell can be deactivated, such as S14.

[0167] S14, the network device instructs the terminal to deactivate on-demand SSB.

[0168] As described above, because the first and second manners bind the activation of SCell and the activation of on-demand SSB, on-demand SSB cannot be deactivated based on the MAC CE alone. In the case where on-demand SSB needs to be deactivated but SCell does not need to be deactivated, one way is to deactivate on-demand SSB by configuring the number of SSB transmission periods and / or the number of SSB transmissions, that is, in the case where the period of transmitting SSB in the on-demand SSB mode reaches the configured number of SSB transmission periods, or the number of times of transmitting SSB in the on-demand SSB mode reaches the configured number of SSB transmissions, the transmission of SSB in the on-demand SSB mode is stopped. Another way is to configure signaling, such as RRC signaling, to indicate to stop transmitting SSB in the on-demand SSB mode.

[0169] The deactivation mode corresponding to the third mode is shown in FIG. 8. The lowest bit is 1, and the index bit is 0, so that the SCell indicated by the index bit does not use the on-demand SSB. For example, in FIG. 8, the value of the MAC CE is 00000001, which indicates that the SCell indicated by C1-C7 does not use the on-demand SSB.

[0170] The flow described in the embodiment provides a mode of configuring the on-demand SSB for the terminal and activating and deactivating the on-demand SSB, so that the network device can transmit the SSB on demand, thereby achieving the purpose of saving energy consumption.

[0171] In order to more flexibly implement the on-demand SSB, the embodiment of the present application provides another method for implementing the on-demand SSB, as shown in FIG. 9, which includes the following steps.

[0172] S21. The network device sends on-demand SSB configuration information to the terminal.

[0173] S21 can refer to S11, which is not described here again.

[0174] S22. The network device obtains the size of the MAC CE for activating the on-demand SSB based on the number of carrier aggregation.

[0175] The number of carrier aggregation is the total number of PCell and SCell. In the case of dual connectivity, the number of carrier aggregation is the number of all cells included in the PCell group and the SCell group.

[0176] In the embodiment, when the number of carrier aggregation is not more than 8, the size of the MAC CE is 1*8 bytes, when the number of carrier aggregation is more than 8 but not more than 32, the size of the MAC CE is 4*8 bytes, and when the number of carrier aggregation is more than 32, the size of the MAC CE is 8*8 bytes.

[0177] S23. The network device instructs the terminal to activate or deactivate the on-demand SSB based on the MAC CE.

[0178] In the embodiment, multiple candidate values are configured for the LCID in the subheader in the MAC sub PDU, and the multiple candidate values are different from the values that can be selected for the LCID in the existing communication standard. The multiple candidate values all indicate the on-demand SSB for activation or deactivation (i.e., for the on-demand SSB), and different candidate values respectively indicate the size of the MAC CE. That is, the LCID corresponding to the MAC CE is used to indicate the size of the MAC CE.

[0179] In the embodiment, the terminal is instructed to activate the on-demand SSB based on any one of the fourth mode to the sixth mode.

[0180] The fourth mode:

[0181] In MAC CE, the lowest bit is a reserved bit (which does not represent any meaning), and the other bits are index bits of the SCell. Each index bit represents a SCell, and the value of the index bit indicates whether the SCell represented by the index bit is activated or deactivated.

[0182] Taking Figure 10 as an example, assuming the size of MAC CE is 1 8-byte, the MAC CE shown in Figure 10 is the same as the MAC CE shown in Figure 4, which is 00000010. However, the meaning of the indication is different from that in Figure 4. In Figure 10, it indicates that the SCell represented by C1 uses (i.e. activates) the on-demand SSB. The values ​​of C2-C7 are all 0, indicating that C2-C7 are deactivated.

[0183] It is understandable that the LCID corresponding to MAC CE in Figure 10 is different from the LCID corresponding to MAC CE in Figure 4.

[0184] Method 5:

[0185] The value of the least significant bit in MAC CE represents the index of the on-demand SSB configuration information. The on-demand SSB configuration information is the information indicated in S21. It can be understood that multiple sets of on-demand SSB configuration information can be indicated. In method five, the least significant bit in MAC CE can support the indication of two sets of on-demand SSB configuration information.

[0186] The other bits are index bits of the SCell. Each index bit represents a SCell, and the value of the index bit indicates whether the SCell represented by the index bit is activated or deactivated.

[0187] Taking Figure 11 as an example, assuming that the size of MAC CE is 1 8-byte, which is 00000010, it indicates that the SCell represented by C1 uses (i.e. activates) the on-demand SSB, and the on-demand SSB uses the on-demand SSB configuration information with index 0.

[0188] For example, MAC CE is 00000011 (not shown in Figure 11), indicating that the SCell represented by C1 uses (i.e. activates) the on-demand SSB, and the on-demand SSB uses the on-demand SSB configuration information with index 1, while the on-demand SSB is deactivated in the SCells represented by other index bits.

[0189] As shown in Figure 1, the configuration information used for on-demand SSB transmission differs in different stages. Assuming that the on-demand SSB in process 2 is transmitted based on the first set of configuration information, and the on-demand SSB in process 3 is transmitted based on the second set of configuration information, then the least significant bit of MAC CE is 1 to indicate the first set of configuration information and 0 to indicate the second set of configuration information. It can be seen that method 5 can not only activate or deactivate on-demand SSB, but also activate on-demand SSB configured with different configuration information.

[0190] It can be understood that the LCID corresponding to the MAC CE in FIG. 11 is the same as the LCID corresponding to the MAC CE in FIG. 10.

[0191] Mode six:

[0192] The value of the lowest bit of the MAC CE indicates the preset SSB activated or deactivated on demand for the SCell. The preset SCell is a preset SCell in the carrier aggregation SCell, for example, all SCells used by the terminal in the carrier aggregation scenario.

[0193] Each of the other bits corresponds to an SCell, and the value of any one of the other bits indicates the on-demand SSB configuration information used by the SCell corresponding to the bit.

[0194] As shown in FIG. 12, the size of the MAC CE is one 8-byte, and the value of the lowest bit is 1, indicating that the on-demand SSB is activated for C1-C7. The value of C1 is 1, indicating that the second set of on-demand SSB configuration information is used for the SCell represented by C1. The values of C2-C7 are all 0, and the value of C7 is 0, indicating that the first set of on-demand SSB configuration information is used for the SCell represented by C7.

[0195] It can be understood that, based on mode six, the value of the lowest bit of the MAC CE is 0, indicating that the on-demand SSB is deactivated. S24, the terminal receives the SSB based on the on-demand SSB configuration information and the MAC CE.

[0196] It can be understood that, in the case where the terminal is instructed to activate the on-demand SSB for at least one SCell, the terminal will use the on-demand SSB configuration information to receive the SSB for the instructed SCell, and realize the transmission of the on-demand SSB. The terminal receives the SSB according to the existing communication standard in the instructed SCell.

[0197] The method for implementing the on-demand SSB provided in the embodiment can use the corresponding MAC CE to instruct the terminal to activate the on-demand SSB based on the number of carrier aggregations, thereby supporting the on-demand SSB for different numbers of secondary cells, and also supporting the indication of multiple sets of on-demand SSB configuration information, thereby improving the flexibility of the on-demand SSB.

[0198] FIG. 13 is another method for implementing the on-demand SSB provided in the embodiment of the application, which is different from the embodiment shown in FIG. 9 in that the MAC CE corresponding to each number of carrier aggregations is one more than that in the embodiment shown in FIG. 9, to realize the purpose of supporting more sets of on-demand SSB configuration information.

[0199] The method shown in FIG. 13 includes the following steps:

[0200] S31. The network device sends on-demand SSB configuration information to the terminal.

[0201] S31 can refer to S11, which will not be repeated here.

[0202] S32. The network device obtains the size of the MAC CE for activating the on-demand SSB based on the number of carriers.

[0203] In this embodiment, when the number of carriers does not exceed 8, the size of the MAC CE is 2 8-byte, when the number of carriers exceeds 8 but does not exceed 32, the size of the MAC CE is 5 8-byte, and when the number of carriers exceeds 32, the size of the MAC CE is 9 8-byte.

[0204] In this embodiment, when the number of carriers does not exceed 8, the size of the MAC CE is 1 8-byte, when the number of carriers exceeds 8 but does not exceed 32, the size of the MAC CE is 4 8-byte, and when the number of carriers exceeds 32, the size of the MAC CE is 8 8-byte.

[0205] S33. The network device instructs the terminal to activate or deactivate the on-demand SSB based on the MAC CE.

[0206] In this embodiment, multiple candidate values are configured for the LCID in the subheader in the sub PDU, which are different from the values that can be selected for the LCID in the existing communication standard. The multiple candidate values respectively represent the size of the MAC CE.

[0207] The lowest bit of the MAC CE is a reserved bit. The position of the highest 1 8-byte of the MAC CE is respectively used to indicate the index of multiple sets of on-demand SSB configuration information. Since 8 bytes are used to represent the index of multiple sets of on-demand SSB configuration information, up to 8 sets of on-demand SSB configuration information can be indicated. The value of any bit in the highest 1 8-byte indicates whether to use or not to use the on-demand SSB configuration information represented by the bit.

[0208] The other bits are index bits of SCells, which are respectively used to correspondingly indicate SCells, and the values are used to represent whether the correspondingly indicated SCells are activated or deactivated.

[0209] Taking FIG. 14 as an example, the MAC CE is two 8-byte, the lowest bit is a reserved bit R, C8-C 15 is a high 8-byte, which respectively corresponds to represent the first set of on-demand SSB configuration information (i.e., configuration information 0) to the eighth set of on-demand SSB configuration information (i.e., configuration information 7), C8-C 15If any one bit is 1, it indicates that the on-demand SSB configuration information corresponding to the bit is used, and if the bit is 0, it indicates that the on-demand SSB configuration information corresponding to the bit is not used.C8-C 15 00000001, indicating that the configuration information 0 corresponding to C8 is used.

[0210] In FIG. 14, C2-C7 in the low 8 bytes respectively correspond to SCells, and if any one bit is 1, it indicates that the on-demand SSB is activated in the SCell corresponding to the bit, and if the bit is 0, it indicates that the on-demand SSB is deactivated in the SCell corresponding to the bit.C2-C7 are 0000001, indicating that the on-demand SSB is activated in the SCell corresponding to C1, and the on-demand SSB is activated in other SCells.

[0211] It can be understood that in the embodiment, the on-demand SSB is deactivated by setting the bit corresponding to the indication of the SCell to 0. In FIG. 14, C1 is set to 0, and the on-demand SSB is deactivated in the SCell corresponding to C1.

[0212] In S34, the terminal receives the SSB based on the on-demand SSB configuration information and the MAC CE.

[0213] The method for implementing the on-demand SSB provided in the embodiment uses one 8-byte to indicate the on-demand SSB configuration information, and can support more on-demand SSB configurations.

[0214] It can be understood that in the embodiment, 7 bits are used to indicate SCells, and 8 bits are used to indicate 8 sets of on-demand SSB configuration information. In actual application, based on the number of SCells and on-demand SSB configuration information to be indicated, a first number of bits are set to respectively indicate each SCell, and a second number of bits are set to respectively indicate each set of on-demand SSB configuration information. In addition, the order of the bits indicating each SCell is not limited to being lower than the order of the bits indicating each set of on-demand SSB configuration information. In addition, taking FIG. 14 as an example, the low 8 bytes can be used to indicate each set of on-demand SSB configuration information, and the 7 bits in the high 8 bytes can be used to indicate each SCell.

[0215] FIG. 15 is another method for implementing the on-demand SSB provided in an embodiment of the present application. The difference between the embodiment shown in FIG. 15 and the embodiments shown in FIG. 9 and FIG. 13 is that the number of MAC CEs corresponding to each carrier aggregation number is larger. Based on this, the information for configuring the on-demand SSB for each SCell can be used to achieve the purpose of configuring different on-demand SSBs for different SCells.

[0216] FIG. 15 includes the following steps:

[0217] S41. The network device sends the on-demand SSB configuration information to the terminal.

[0218] S42. The network device obtains the number of MAC CEs for activating the on-demand SSB based on the number of carriers.

[0219] In this embodiment, when the number of carriers is not more than 8, the size of the MAC CE is 2 8-byte, when the number of carriers is more than 8 but not more than 32, the size of the MAC CE is 8 8-byte, and when the number of carriers is more than 32, the size of the MAC CE is 16 8-byte.

[0220] S43. The network device instructs the terminal to activate or deactivate the on-demand SSB based on the MAC CE.

[0221] For the 2 8-byte MAC CE, the lowest bit in the high 8-byte is a reserved bit, and the lowest bit in the low 8-byte is also a reserved bit. The bits in the low 8-byte other than the reserved bits are index bits of the SCells, indicating the indexes of the SCells, i.e., indicating the SCells. The value of any one index bit being 1 indicates that the SCell represented by the index bit activates the on-demand SSB, and the value of any one index bit being 0 indicates that the SCell represented by the index bit deactivates the on-demand SSB.

[0222] The bits in the high 8-byte and the bits in the low 8-byte correspond to each other in terms of order and position, i.e., the highest bit in the high 8-byte corresponds to the highest bit in the low 8-byte. The corresponding bits represent the same SCell. The bits in the high 8-byte indicate that the SCell represented by the bits uses the first set or the second set of on-demand SSB configuration information.

[0223] For example, in FIG. 16, the values of the reserved bits in the high 8-byte and the low 8-byte are both 0, indicating reservation. The values of C1 and C2 in the low high 8-byte are both 1, indicating that the SCells indicated by C1 and C2 activate the on-demand SSB, and the SCells indicated by the other bits deactivate the on-demand SSB.

[0224] The value of C9 in the high 8-byte is 0, indicating that the SCell indicated by C1 (also the SCell indicated by C9) uses the first set of on-demand SSB configuration information, and the value of C 10 is 1, indicating that the SCell indicated by C2 (also the SCell indicated by C 10 uses the second set of on-demand SSB configuration information.

[0225] Similarly, for the 8 octet MAC CE, the lowest bits in the upper 4 octets are reserved bits, and the lowest bits in the lower 4 octets are also reserved bits. The bits in the lower 4 octets other than the reserved bits are index bits of the SCells, indicating the indexes of the SCells, i.e., indicating the SCells. The value of any one index bit being 1 indicates that the SCell represented by the index bit is activated for on-demand SSB, and the value of the index bit being 0 indicates that the SCell represented by the index bit is deactivated for on-demand SSB.

[0226] The bits in the upper 4 octets and the bits in the lower 8 octets correspond to each other one by one in terms of order and position, and the corresponding bits represent the same SCell. The bits in the upper 4 octets indicate that the SCell represented by the bits uses the first set or the second set of on-demand SSB configuration information.

[0227] Similarly, for the 16 octet MAC CE, it is divided into upper 8 octets and lower 8 octets. The meanings of the bits in the upper 8 octets can be referred to the above-mentioned upper 8 octets or upper 4 octets, and the meanings of the bits in the lower 8 octets can be referred to the above-mentioned lower 8 octets or lower 4 octets.

[0228] The above-mentioned manner can be summarized as follows: the MAC CE includes a first part of bytes with a length of M / 2 and a second part of bytes with a length of M / 2, and the first part of bytes and the second part of bytes do not overlap. The lowest bits of the first part of bytes and the second part of bytes are reserved bits, and the bits in the first part of bytes other than the lowest bits respectively represent SCells. The value of the other bits in the first part of bytes being 1 indicates that the corresponding represented SCell is activated, and the value of the other bits in the first part of bytes being 0 indicates that the corresponding represented SCell is deactivated.

[0229] The value of the other bits in the second part of bytes being 0 indicates that, in the case that the corresponding SCell is activated for on-demand SSB, the on-demand SSB is transmitted based on the first set of on-demand SSB configuration information, and the value of the other bits in the second part of bytes being 1 indicates that, in the case that the corresponding SCell is activated for on-demand SSB, the on-demand SSB is transmitted based on the second set of on-demand SSB configuration information.

[0230] It can be understood that the order of the first part of bytes and the second part of bytes is not limited, such as the upper 8 octets can also be used to represent SCells, and the lower 8 octets can be used to represent on-demand SSB configuration information.

[0231] S44, the terminal receives the SSB based on the on-demand SSB configuration information and the MAC CE.

[0232] The method for implementing on-demand SSBs provided in this embodiment is that each SCell corresponds to a bit, and the bit corresponding to any SCell is used to indicate the on-demand SSB configuration information used by the SCell in the case of activating on-demand SSBs, so that the indication of on-demand SSBs is more flexible.

[0233] FIG. 17 is a structural example of a terminal disclosed in an embodiment of the present application, taking a mobile phone as an example, which 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.

[0234] 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 the illustration, 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.

[0235] 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. Among them, different processing units can be independent devices, or can be integrated in one or more processors.

[0236] 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, save music, video, and other files in the external memory card.

[0237] 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 running 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 running the instructions stored in the internal memory 321 and / or the instructions stored in the memory disposed in the processor.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] In some embodiments, the terminal initiates or receives a call request through the mobile communication module 350 and the antenna 1.

[0242] 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.

[0243] FIG. 18 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.

[0244] 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, for controlling 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 transceiving 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.

[0245] 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.

[0246] 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.

[0247] It should be understood that FIG. 18 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. 18.

[0248] 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.

[0249] 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.

[0250] 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.

[0251] 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 in 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 includes the following steps. Indicating on-demand SSB configuration information to the terminal; Indicating to the terminal to activate the on-demand SSB in the first secondary cell based on a medium access control control element (MAC CE).

2. The method of claim 1, wherein, Based on the MAC CE, indicating to the terminal to activate the on-demand SSB in the first secondary cell includes the following steps. Sends a first MAC CE to the terminal, the first MAC CE indicates to activate the first secondary cell and activate the on-demand SSB in the first secondary cell.

3. The method of claim 2, wherein, The lowest bit of the first MAC CE is a reserved bit, and the other bits respectively correspond to represent a secondary cell, the first bit of the other bits represents the first secondary cell, and the first bit is a first value indicating to activate the first secondary cell and activate the on-demand SSB in the first secondary cell.

4. The method of claim 3, wherein, Further comprising: Sends a second MAC CE to the terminal, the second MAC CE indicates to deactivate the first secondary cell and deactivate the on-demand SSB in the first secondary cell, the lowest bit of the second MAC CE is a reserved bit, the other bits of the second MAC CE respectively correspond to represent a secondary cell, the first bit of the other bits of the second MAC CE represents the first secondary cell, and the first bit is a second value indicating to deactivate the first secondary cell and deactivate the on-demand SSB in the first secondary cell.

5. The method of claim 2, wherein, The lowest bit of the first MAC CE is a third value indicating that the first MAC CE is used to activate the secondary cell and the on-demand SSB, the other bits respectively correspond to represent a secondary cell, the first bit of the other bits represents the first secondary cell, and the first bit is a first value indicating to activate the first secondary cell and activate the on-demand SSB in the first secondary cell.

6. The method according to any one of claims 3-5, characterized in that, Further comprising: Sends a first signaling to the terminal, the first signaling indicates to deactivate the on-demand SSB in the first secondary cell, and the first signaling is other signaling except the MAC CE.

7. The method of claim 1, wherein, Based on the MAC CE, indicating to the terminal to activate the on-demand SSB in the first secondary cell includes the following steps. Sends a first MAC CE to the terminal, the first MAC CE indicates to activate the on-demand SSB in the first secondary cell.

8. The method of claim 7, wherein, The lowest bit of the first MAC CE is a third value indicating that the first MAC CE is used for the on-demand SSB, the other bits respectively correspond to represent a secondary cell, the first bit of the other bits represents the first secondary cell, and the first bit is a first value indicating to activate the on-demand SSB in the first secondary cell.

9. The method of claim 8, wherein, Further comprising: sending a second MAC CE to the terminal, the second MAC CE indicating to deactivate the on-demand SSB at the first secondary cell, a lowest bit of the second MAC CE being a third value indicating that the second MAC CE is for the on-demand SSB, other bits of the second MAC CE respectively corresponding to indicate one secondary cell, a first bit of the other bits of the second MAC CE indicating the first secondary cell, the first bit of the other bits of the second MAC CE being a second value indicating to deactivate the on-demand SSB at the first secondary cell.

10. The method of claim 1, wherein, indicating to the terminal to activate the on-demand SSB at the first secondary cell based on the MAC CE, comprising: sending a MAC sub PDU to the terminal, the MAC sub PDU comprising a first MAC CE, a subheader of the MAC sub PDU indicating a size of the first MAC CE and being for the on-demand SSB, the first MAC CE indicating to activate the on-demand SSB at the first secondary cell.

11. The method of claim 10, wherein, a lowest bit of the first MAC CE being a reserved bit, other bits of the first MAC CE respectively corresponding to indicate one secondary cell, a first bit of the other bits of the first MAC CE indicating the first secondary cell, the first bit of the other bits of the first MAC CE being a first value indicating to activate the on-demand SSB at the first secondary cell.

12. The method of claim 11, wherein, further comprising: sending a second MAC CE to the terminal, the second MAC CE indicating to deactivate the on-demand SSB at the first secondary cell, a lowest bit of the second MAC CE being a reserved bit, other bits of the second MAC CE respectively corresponding to indicate one secondary cell, a first bit of the other bits of the second MAC CE indicating the first secondary cell, the first bit of the other bits of the second MAC CE being a second value indicating to deactivate the on-demand SSB at the first secondary cell.

13. The method of claim 10, wherein, a value of the lowest bit of the first MAC CE indicating a first set of on-demand SSB configuration information or a second set of on-demand SSB configuration information, at a secondary cell where the on-demand SSB is activated, the on-demand SSB being transmitted based on the on-demand SSB configuration information indicated by the lowest bit; other bits of the first MAC CE respectively corresponding to indicate one secondary cell, a first bit of the other bits of the first MAC CE indicating the first secondary cell, the first bit of the other bits of the first MAC CE being a first value indicating to activate the on-demand SSB at the first secondary cell.

14. The method of claim 13, wherein, further comprising: sending a second MAC CE to the terminal, the second MAC CE indicating to deactivate the on-demand SSB at the first secondary cell, other bits of the second MAC CE except a lowest bit of the second MAC CE respectively corresponding to indicate one secondary cell, a first bit of the other bits of the second MAC CE indicating the first secondary cell, the first bit of the other bits of the second MAC CE being a second value indicating to deactivate the on-demand SSB at the first secondary cell.

15. The method of claim 14, wherein, The value of the lowest bit of the second MAC CE indicates the first set of on-demand SSB configuration information or the second set of on-demand SSB configuration information, and on-demand SSBs are transmitted based on the on-demand SSB configuration information indicated by the lowest bit on a secondary cell where the on-demand SSBs are activated.

16. The method of claim 10, wherein, The lowest bit of the first MAC CE is a third value, indicating that the on-demand SSBs are activated on a secondary cell, and the secondary cell includes the first secondary cell.

17. The method of claim 16, wherein, Other bits respectively indicate on-demand SSB configuration information used by corresponding secondary cells, and a first bit of the other bits is a fifth value, indicating that a first set of on-demand SSB configuration information is used on the first secondary cell, and a sixth value, indicating that a second set of on-demand SSB configuration information is used on the first secondary cell.

18. The method of claim 16 or 17, wherein, Further comprising: The second MAC CE is sent to the terminal, the second MAC CE indicates that the on-demand SSBs are deactivated on the first secondary cell, and the lowest bit of the second MAC CE is a fourth value, indicating that the on-demand SSBs are deactivated on a secondary cell, and the secondary cell includes the first secondary cell.

19. The method of claim 10, wherein, The lowest bit of the first MAC CE is a reserved bit, and among other bits except the lowest bit, a first number of other bits respectively indicate secondary cells, and a first bit of the first number of other bits indicates the first secondary cell, and the first bit is a first value, indicating that the on-demand SSBs are activated on the first secondary cell.

20. The method of claim 19, wherein, A second number of other bits in the first MAC CE respectively correspond to indicate a set of on-demand SSB configuration information, a first bit of the second number of other bits indicates a first set of on-demand SSB configuration information, and the first bit of the second preset number of other bits is a seventh value, indicating that the first set of on-demand SSB configuration information is used on a secondary cell where the on-demand SSBs are activated, and the second number of other bits does not overlap with the first number of other bits.

21. The method of claim 19 or 20, wherein, Further comprising: The second MAC CE is sent to the terminal, the second MAC CE indicates that the on-demand SSBs are deactivated on the first secondary cell, and the lowest bit of the second MAC CE is a fourth value, indicating that the on-demand SSBs are deactivated on a secondary cell, and the secondary cell includes the first secondary cell.

22. The method of claim 21, wherein, The lowest bit of the first MAC CE is a reserved bit, and among other bits except the lowest bit, a first number of other bits respectively indicate secondary cells, and a first bit of the first number of other bits indicates the first secondary cell, and the first bit is a first value, indicating that the on-demand SSBs are activated on the first secondary cell. A second number of other bits in the first MAC CE respectively correspond to indicate a set of on-demand SSB configuration information, a first bit of the second number of other bits indicates a first set of on-demand SSB configuration information, and the first bit of the second preset number of other bits is a seventh value, indicating that the first set of on-demand SSB configuration information is used on a secondary cell where the on-demand SSBs are activated, and the second number of other bits does not overlap with the first number of other bits.

23. The method of any one of claims 20-22, wherein, The first quantity of other bits is lower in order than the second quantity of other bits.

24. The method of claim 10, wherein, The first MAC CE comprises a first part byte with a length of M / 2, a lowest bit of the first part byte is a reserved bit, and other bits in the first part byte respectively represent a secondary cell, a first bit of the other bits represents the first secondary cell, and the first bit is a first value indicating that the on-demand SSB is activated at the first secondary cell, and M is a number of bytes contained in the first MAC CE.

25. The method of claim 24, wherein, The first MAC CE further comprises a second part byte with a length of M / 2, the first part byte and the second part byte are non-overlapping, a lowest bit of the second part byte is a reserved bit, and other bits in the second part byte respectively represent on-demand SSB configuration information used by the secondary cell, a first bit of the other bits in the second part byte is a fifth value indicating that a first set of on-demand SSB configuration information is used at the first secondary cell, and a second bit of the other bits in the second part byte is a sixth value indicating that a second set of on-demand SSB configuration information is used at the first secondary cell.

26. The method of claim 24 or 25, wherein, Further comprising: sending a second MAC CE to the terminal, the second MAC CE indicating that the on-demand SSB is deactivated at the first secondary cell, the second MAC CE comprising a first part byte with a length of M / 2, a lowest bit of the first part byte being a reserved bit, and other bits in the first part byte respectively representing a secondary cell, a first bit of the other bits in the first part byte representing the first secondary cell, and the first bit in the second MAC CE being a second value indicating that the on-demand SSB is deactivated at the first secondary cell.

27. The method of claim 26, wherein, The second MAC CE further comprises a second part byte with a length of M / 2, the first part byte and the second part byte are non-overlapping, a lowest bit of the second part byte is a reserved bit, and other bits in the second part byte of the second MAC CE respectively represent on-demand SSB configuration information used by the secondary cell, and values of the other bits in the second part byte of the second MAC CE indicate that a first set of on-demand SSB configuration information or a second set of on-demand SSB configuration information is used at a corresponding activated secondary cell.

28. The method of claims 24-27, wherein, The first part byte is lower in order than the second part byte.

29. The method of any one of claims 10-28, wherein, Before indicating, based on the MAC CE, that the on-demand SSB is activated at the first secondary cell to the terminal, further comprising: obtaining a size of the first MAC CE based on a number of carrier aggregations used by the carrier aggregation, the number of carrier aggregations being a total number of primary cells and secondary cells, or the number of carrier aggregations being a total number of cells contained in a primary cell group and cells contained in a secondary cell group.

30. The method of any one of claims 1-29, wherein, The indicating, to the terminal, of the on-demand SSB configuration information comprises: indicating, to the terminal, of the on-demand SSB configuration information using radio resource control (RRC) signaling.

31. The method of any one of claims 1-30, wherein, The on-demand SSB configuration information comprises: at least one of index information of the secondary cell, index of on-demand SSB configuration information, time domain resource, frequency domain resource, SSB period, number of SSB transmission periods, and number of SSB transmissions.

32. The method of claim 31, wherein, The index information of the secondary cell includes: Index information of at least one secondary cell, the at least one secondary cell including the first secondary cell.

33. The method of any one of claims 1-32, wherein, Before the indicating the on-demand SSB configuration information to the terminal, further comprising: Obtaining network energy saving capability of the first secondary cell and / or the terminal.

34. A method of enabling on-demand SSBs, the method comprising: Applied to a terminal, the terminal communicates with a network device based on carrier aggregation, and the secondary cell of the carrier aggregation includes a first secondary cell, and the method comprises: Receiving the on-demand SSB configuration information indicated by the network device; Receiving the first MAC CE sent by the network device, the first MAC CE indicating to activate the on-demand SSB in the first secondary cell; Based on the on-demand SSB configuration information and the first MAC CE, receiving SSB.

35. The method of claim 34, wherein, The first MAC CE indicates to activate the on-demand SSB in the first secondary cell, comprising: The first MAC CE indicates to activate the first secondary cell, and activates the on-demand SSB in the first secondary cell, or the first MAC CE indicates to activate the on-demand SSB in the first secondary cell.

36. The method of claim 35, wherein, The lowest bit of the first MAC CE is a reserved bit, and the other bits respectively correspond to represent a secondary cell, the first bit in the other bits represents the first secondary cell, and the value of the first bit represents to activate the first secondary cell and activate the on-demand SSB in the first secondary cell.

37. The method of claim 36, wherein, Further comprising: Sending a second MAC CE to the terminal, the second MAC CE indicating to deactivate the first secondary cell and deactivate the on-demand SSB in the first secondary cell, the lowest bit of the second MAC CE being a reserved bit, the other bits of the second MAC CE respectively corresponding to represent a secondary cell, the first bit in the other bits of the second MAC CE representing the first secondary cell, and the first bit being a second value representing to deactivate the first secondary cell and deactivate the on-demand SSB in the first secondary cell.

38. The method of claim 35, wherein, The lowest bit of the first MAC CE is a third value representing that the first MAC CE is used to activate the secondary cell and the on-demand SSB, and the other bits respectively correspond to represent a secondary cell, the first bit in the other bits representing the first secondary cell, and the first bit being a first value representing to activate the first secondary cell and activate the on-demand SSB in the first secondary cell.

39. The method of any one of claims 36-38, wherein, Further comprising: Receiving the first signaling sent by the network device, the first signaling indicating to deactivate the on-demand SSB in the first secondary cell, and the first signaling being other signaling except MAC CE.

40. The method of claim 35, wherein, A lowest bit of the first MAC CE is a third value, indicating that the first MAC CE is used for the on-demand SSB, and other bits respectively correspond to indicate one secondary cell, a first bit of the other bits indicates the first secondary cell, and the first bit is a first value, indicating that the on-demand SSB is activated in the first secondary cell.

41. The method of claim 40, wherein, Further comprising: receiving a second MAC CE sent by the network device, the second MAC CE indicating that the on-demand SSB is deactivated in the first secondary cell, a lowest bit of the second MAC CE is a third value, indicating that the second MAC CE is used for the on-demand SSB, and other bits of the second MAC CE respectively correspond to indicate one secondary cell, a first bit of the other bits of the second MAC CE indicates the first secondary cell, and the first bit of the other bits of the second MAC CE is a second value, indicating that the on-demand SSB is deactivated in the first secondary cell.

42. The method of claim 34, wherein, The receiving the first MAC CE sent by the network device, the first MAC CE indicating that the on-demand SSB is activated in the first secondary cell, comprises: receiving a MAC sub PDU sent by the network device, the MAC sub PDU comprising a first MAC CE, and a subheader of the MAC sub PDU indicating a size of the first MAC CE used for the on-demand SSB, the first MAC CE indicating that the on-demand SSB is activated in the first secondary cell.

43. The method of claim 42, wherein, A lowest bit of the first MAC CE is a reserved bit, and other bits respectively correspond to indicate one secondary cell, a first bit of the other bits indicates the first secondary cell, and the first bit is a first value, indicating that the on-demand SSB is activated in the first secondary cell.

44. The method of claim 43, wherein, Further comprising: receiving a second MAC CE sent by the network device, the second MAC CE indicating that the on-demand SSB is deactivated in the first secondary cell, a lowest bit of the second MAC CE is a reserved bit, and other bits of the second MAC CE respectively correspond to indicate one secondary cell, a first bit of the other bits of the second MAC CE indicates the first secondary cell, and the first bit of the other bits of the second MAC CE is a second value, indicating that the on-demand SSB is deactivated in the first secondary cell.

45. The method of claim 42, wherein, A value of the lowest bit of the first MAC CE indicates a first set of on-demand SSB configuration information or a second set of on-demand SSB configuration information, and in a secondary cell in which the on-demand SSB is activated, the on-demand SSB is transmitted based on the on-demand SSB configuration information indicated by the lowest bit; other bits respectively correspond to indicate one secondary cell, a first bit of the other bits indicates the first secondary cell, and the first bit is a first value, indicating that the on-demand SSB is activated in the first secondary cell.

46. The method of claim 45, wherein, Further comprising: receive a second MAC CE sent by the network device, the second MAC CE indicating that the on-demand SSB is deactivated at the first secondary cell, other bit positions of the second MAC CE except a lowest bit position respectively corresponding to represent one secondary cell, a first bit position of the other bit positions of the second MAC CE representing the first secondary cell, the first bit position of the other bit positions of the second MAC CE being a second value to indicate that the on-demand SSB is deactivated at the first secondary cell.

47. The method of claim 46, wherein, a value of the lowest bit position of the second MAC CE representing the first set of on-demand SSB configuration information or the second set of on-demand SSB configuration information, at a secondary cell where the on-demand SSB is activated, the on-demand SSB being transmitted based on the on-demand SSB configuration information represented by the lowest bit position.

48. The method of claim 42, wherein, the lowest bit position of the first MAC CE being a third value to indicate that the on-demand SSB is activated at a secondary cell, the secondary cell including the first secondary cell.

49. The method of claim 48, wherein, other bit positions respectively representing on-demand SSB configuration information used by corresponding secondary cells, a first bit position of the other bit positions being a fifth value to indicate that the first set of on-demand SSB configuration information is used at the first secondary cell, the first bit position being a sixth value to indicate that the second set of on-demand SSB configuration information is used at the first secondary cell.

50. The method of claim 48 or 49, wherein, Further comprising: receive a second MAC CE sent by the network device, the second MAC CE indicating that the on-demand SSB is deactivated at the first secondary cell, a lowest bit position of the second MAC CE being a fourth value to indicate that the on-demand SSB is deactivated at the secondary cell, the secondary cell including the first secondary cell.

51. The method of claim 42, wherein, the lowest bit position of the first MAC CE being a reserved bit position, among other bit positions except the lowest bit position, a first quantity of other bit positions respectively representing secondary cells, a first bit position of the first quantity of other bit positions representing the first secondary cell, the first bit position being a first value to indicate that the on-demand SSB is activated at the first secondary cell.

52. The method of claim 51, wherein, a second quantity of other bit positions in the first MAC CE respectively corresponding to represent a set of on-demand SSB configuration information, a first bit position of the second quantity of other bit positions representing a first set of on-demand SSB configuration information, the first bit position of the second quantity of other bit positions being a seventh value to indicate that the first set of on-demand SSB configuration information is used at a secondary cell where the on-demand SSB is activated, the second quantity of other bit positions not overlapping with the first quantity of other bit positions.

53. The method of claim 51 or 52, wherein, Further comprising: receive a second MAC CE sent by the network device, the second MAC CE indicating that the on-demand SSB is deactivated at the first secondary cell, a lowest bit position of the second MAC CE being a reserved bit position, among other bit positions except the lowest bit position in the second MAC CE, a first quantity of other bit positions respectively representing secondary cells, a first bit position of the first quantity of other bit positions representing the first secondary cell, the first bit position being a second value to indicate that the on-demand SSB is deactivated at the first secondary cell.

54. The method of claim 53, wherein, The second quantity of other bit positions in the second MAC CE respectively correspond to a set of on-demand SSB configuration information, a first bit position in the second quantity of other bit positions indicates a first set of on-demand SSB configuration information, and a first bit position in the second preset quantity of other bit positions is a seventh value to indicate that the first set of on-demand SSB configuration information is used in the activated on-demand SSB of the secondary cell.

55. The method of any one of claims 52-54, wherein, The first quantity of other bit positions is lower in order than the second quantity of other bit positions.

56. The method of claim 42, wherein, The first MAC CE includes a first part byte with a length of M / 2, a lowest bit position of the first part byte is a reserved bit position, and other bit positions in the first part byte respectively indicate secondary cells, a first bit position in the other bit positions indicates the first secondary cell, and the first bit position is a first value to indicate that the on-demand SSB is activated in the first secondary cell. The M is a number of bytes contained in the first MAC CE.

57. The method of claim 56, wherein, The first MAC CE further includes a second part byte with a length of M / 2, the first part byte is non-overlapping with the second part byte, a lowest bit position of the second part byte is a reserved bit position, and other bit positions in the second part byte respectively indicate on-demand SSB configuration information used by the secondary cells, a first bit position in the other bit positions in the second part byte is a fifth value to indicate that a first set of on-demand SSB configuration information is used in the first secondary cell, and a first bit position in the other bit positions in the second part byte is a sixth value to indicate that a second set of on-demand SSB configuration information is used in the first secondary cell.

58. The method of claim 56 or 57, wherein, Further comprising: receiving a second MAC CE sent by the network device, the second MAC CE indicating that the on-demand SSB is deactivated in the first secondary cell, the second MAC CE including a first part byte with a length of M / 2, a lowest bit position in the first part byte being a reserved bit position, and other bit positions in the first part byte respectively indicating secondary cells, a first bit position in the other bit positions in the first part byte indicating the first secondary cell, and the first bit position in the second MAC CE being a second value to indicate that the on-demand SSB is deactivated in the first secondary cell.

59. The method of claim 58, wherein, The second MAC CE further includes a second part byte with a length of M / 2, the first part byte is non-overlapping with the second part byte, a lowest bit position of the second part byte is a reserved bit position, and other bit positions in the second part byte of the second MAC CE respectively indicate on-demand SSB configuration information used by the secondary cells, and values of the other bit positions in the second part byte of the second MAC CE indicate that a first set of on-demand SSB configuration information or a second set of on-demand SSB configuration information is used in a corresponding activated secondary cell.

60. The method of claims 56-59, wherein, The first part byte is lower in order than the second part byte.

61. The method of any one of claims 34-60, wherein, The receiving of the on-demand SSB configuration information indicated by the network device comprises: receive radio resource control (RRC) signaling transmitted by the network device, the RRC signaling being used to indicate the on-demand SSB configuration information.

62. The method of any one of claims 34-61, wherein, The on-demand SSB configuration information comprises at least one of the following: index information of a secondary cell, index of SSB configuration information, time domain resource, frequency domain resource, SSB period, period number of SSB transmission, and number of times of SSB transmission.

63. The method of claim 62, wherein, The index information of the secondary cell comprises: index information of at least one secondary cell, the at least one secondary cell comprising the first secondary cell. 64.A network device, characterized in that, comprise: one or more processors and a memory; the memory is used to store program code; The processor is used to run the program code, so that the network device implements the method for implementing on-demand SSB according to any one of claims 1 to 33.

65. A terminal, comprising: comprise: one or more processors, a memory and a touch screen; The memory is used to store program code; The processor is used to run the program code, so that the terminal implements the method for implementing on-demand SSB according to any one of claims 34 to 63.

66. 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 SSB according to any one of claims 1 to 63.

67. 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 SSB according to any one of claims 1 to 63.

68. A chip system, characterized by comprise: at least one processor and an interface, the interface being used to receive code instructions and transmit to the at least one processor; The at least one processor runs the code instructions to implement the method for implementing on-demand SSB according to any one of claims 1 to 63.

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