SSB triggering method and device, related equipment, storage medium and program product

Abstract

The invention provides an SSB triggering method and device, related equipment, a storage medium and a program product, and relates to the technical field of wireless communication, and the method comprises the steps: receiving first indication information which is used for triggering first SSB transmission and scheduling first downlink transmission; or, second indication information is sent, and the second indication information is used for triggering second SSB transmission and is used for requesting a first uplink grant (UL grant). The method and the device are used for solving the problems of high data transmission overhead and long time delay in an NES Cell scene.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, and particularly relates to an SSB triggering method and device, related equipment, a storage medium and a program product. BACKGROUND

[0002] In related technologies, in order to achieve energy saving purposes, a synchronization signal and PBCH block (or synchronization signal block) (SSB) is not usually transmitted in a network energy saving (NES) cell scenario. In a scenario with data transmission requirements, a terminal needs to trigger an SSB to complete basic time domain and frequency domain synchronization and AGC calibration, so as to perform related data transmission. However, the existing SSB triggering technical solutions have many processes and are relatively complex to implement, resulting in large data transmission overhead and related additional power consumption and long latency in the energy saving cell scenario. SUMMARY

[0003] Embodiments of the present application provide an SSB triggering method and device, related equipment, a storage medium and a program product to solve the problems of large data transmission overhead and related additional power consumption and long latency in the energy saving cell scenario.

[0004] To solve the above technical problems, the present application is implemented as follows:

[0005] In a first aspect, the embodiments of the present application provide an SSB triggering method, comprising:

[0006] receiving first indication information, the first indication information being used for triggering first SSB transmission and scheduling first downlink transmission;

[0007] alternatively,

[0008] sending second indication information, the second indication information being used for triggering second SSB transmission and requesting a first uplink grant (UL grant).

[0009] Optionally, the first indication information is downlink control information (DCI).

[0010] Optionally, the first indication information comprises at least one of the following:

[0011] a first bit field, the first bit field identifying that the first indication information is used for triggering the first SSB transmission and / or scheduling the first downlink transmission;

[0012] an index value corresponding to a first cell;

[0013] a physical cell identifier corresponding to the first cell.

[0014] Optionally, the method further comprises:

[0015] receiving the first SSB transmission and the first downlink transmission on the first cell.

[0016] Optionally, the receiving the first indication information comprises:

[0017] receiving the first indication information on a second cell.

[0018] Optionally, the method further comprises:

[0019] receiving the first SSB transmission at a first time unit;

[0020] wherein a first time interval exists between the first time unit and a second time unit, the second time unit being a time unit in which the first indication information is located, the first time interval being a predefined value, or the first time interval being indicated by the first indication information.

[0021] Optionally, the method further comprises:

[0022] receiving the first SSB transmission within a second time interval;

[0023] wherein the second time interval is a predefined value, or the second time interval is indicated by the first indication information.

[0024] Optionally, the method further comprises:

[0025] receiving the first downlink transmission at a third time unit;

[0026] wherein a third time interval exists between the first time unit and the third time unit, the third time interval being a predefined value, or the third time interval being determined by the first indication information.

[0027] Optionally, the method further comprises:

[0028] receiving the first downlink transmission at a fourth time unit;

[0029] wherein a fourth time interval exists between the fourth time unit and a fifth time unit, the fifth time unit being a time unit in which the receiving of the first SSB transmission ends, the fourth time interval being a predefined value, or the fourth time interval being indicated by the first indication information.

[0030] Optionally, the first indication information comprises at least one of:

[0031] a frequency domain position of the first SSB transmission.

[0032] a transmission periodicity of the first SSB transmission;

[0033] a first index indication of the first SSB transmission, the first index indication indicating SSB indices actually transmitted in a first SSB pattern corresponding to the first SSB transmission.

[0034] Optionally, the first SSB transmission corresponds to a first SSB burst.

[0035] Optionally, spatial domain information of the plurality of SSB indices in the first SSB burst is consistent, or the plurality of SSB indices in the first SSB burst have a same quasi co-location (QCL) feature, or spatial domain transmission filters corresponding to the plurality of SSB indices in the first SSB burst are same.

[0036] Optionally, spatial domain information of the SSB indices in the first SSB index set is consistent, or the SSB indices in the first SSB index set have a same QCL feature, or spatial domain transmission filters corresponding to the SSB indices in the first SSB index set are same.

[0037] Optionally, the first SSB index set is one or more SSB indices actually transmitted indicated in the first index indication.

[0038] Optionally, the first indication information further comprises reference signal indication information, the reference signal indication information indicating a first channel state information reference signal (CSI-RS) transmission.

[0039] Optionally, the first downlink transmission is a first CSI-RS.

[0040] Optionally, the first downlink transmission comprises a medium access control (MAC) control element (CE) of a secondary cell activation command; or

[0041] the first downlink transmission comprises a radio resource control (RRC) signaling indicating a secondary cell activation.

[0042] Optionally, the secondary cell is a first cell.

[0043] Optionally, the second indication information is an uplink scheduling request (SR) or a physical random access channel (PRACH).

[0044] Optionally, the method further comprises:

[0045] receiving the second SSB transmission on a first cell, and receiving the first uplink grant on the first cell.

[0046] Optionally, the method further comprises:

[0047] transmitting the second indication information on the second cell.

[0048] Optionally, the method further comprises:

[0049] receiving the second SSB transmission starting from a sixth time unit;

[0050] wherein a fifth time interval exists between the sixth time unit and a seventh time unit, the seventh time unit being a time unit where the second indication information is located, the fifth time interval being a predefined value, or the fifth time interval being indicated by the second indication information.

[0051] Optionally, the method further comprises:

[0052] receiving the second SSB transmission within a sixth time interval;

[0053] wherein the sixth time interval is a predefined value, or the sixth time interval is indicated by the second indication information.

[0054] Optionally, the method further comprises:

[0055] receiving the first uplink grant starting from an eighth time unit;

[0056] wherein a seventh time interval exists between the sixth time unit and the eighth time unit, the seventh time interval being a predefined value, or the seventh time interval being determined by the second indication information.

[0057] Optionally, the method further comprises:

[0058] receiving the first uplink grant starting from a ninth time unit;

[0059] wherein an eighth time interval exists between the ninth time unit and a tenth time unit, the tenth time unit being a time unit where the receiving of the second SSB ends, the eighth time interval being a predefined value, or the eighth time interval being indicated by the second indication information.

[0060] Optionally, before the transmitting the second indication information, the method further comprises:

[0061] receiving first configuration information, the first configuration information being used to indicate that the second indication information is associated with the first cell.

[0062] Optionally, the method further comprises:

[0063] receiving second configuration information, the second configuration information being used to indicate one or more of the following:

[0064] a frequency domain location of the second SSB transmission;

[0065] a transmission periodicity of the second SSB transmission;

[0066] a second index indication of the second SSB transmission, the second index indication being used to indicate a SSB index of a second SSB transmission actually transmitted within a SSB pattern.

[0067] Optionally, the second SSB transmission corresponds to a second SSB burst.

[0068] wherein a spatial domain information of the multiple SSB indexes in the second SSB burst is consistent, or the multiple SSB indexes in the second SSB burst have a same QCL characteristic, or a spatial domain transmission filter corresponding to the multiple SSB indexes in the second SSB burst is same.

[0069] Optionally, a spatial domain information of the SSB indexes in the second SSB index set is consistent; or the SSB indexes in the second SSB index set have a same QCL characteristic; or a spatial domain transmission filter corresponding to the SSB indexes in the second SSB index set is same.

[0070] wherein the second SSB index set is one or more SSB indexes actually transmitted indicated in the second index indication.

[0071] Optionally, the first uplink grant comprises a secondary cell activation command.

[0072] Optionally, the secondary cell is a first cell.

[0073] In a second aspect, the embodiments of the present application further provide a SSB triggering method, applied to a network side device, the method comprising:

[0074] sending first indication information, the first indication information being used to trigger a first SSB transmission, and schedule a first downlink transmission;

[0075] or,

[0076] receiving second indication information, the second indication information being used to trigger a second SSB transmission, and being used to request a first UL grant.

[0077] Optionally, the first indication information is DCI.

[0078] Optionally, the first indication information comprises at least one of the following:

[0079] a first bit field, the first bit field identifying that the first indication information is used for triggering the first SSB transmission and / or scheduling the first downlink transmission;

[0080] an index value corresponding to the first cell;

[0081] a physical cell identity corresponding to the first cell.

[0082] Optionally, the method further comprises:

[0083] transmitting the first SSB transmission and the first downlink transmission on the first cell.

[0084] Optionally, the method further comprises transmitting the first indication information on a second cell.

[0085] Optionally, the first indication information comprises at least one of:

[0086] a frequency domain location of the first SSB transmission;

[0087] a transmission periodicity of the first SSB transmission;

[0088] a first index indication of the first SSB transmission, the first index indication being used for indicating an actually transmitted SSB index within a SSB pattern corresponding to the first SSB transmission.

[0089] Optionally, the first indication information further comprises reference signal indication information, the reference signal indication information being used for indicating a first CSI-RS transmission.

[0090] Optionally, the first downlink transmission is a first CSI-RS.

[0091] Optionally, the first downlink transmission comprises a MAC CE of a secondary cell activation command; or,

[0092] the first downlink transmission comprises RRC signaling indicating a secondary cell activation.

[0093] Optionally, the secondary cell is a first cell.

[0094] Optionally, the second indication information is an SR, or a PRACH.

[0095] Optionally, the method further comprises:

[0096] transmitting the second SSB transmission on a first cell, and transmitting the first UL grant on the first cell.

[0097] Optionally, the method further comprises:

[0098] receiving the second indication information on a second cell.

[0099] Optionally, before the receiving the second indication information, the method further includes:

[0100] sending first configuration information, the first configuration information being used for indicating that the second indication information is associated with the first cell.

[0101] Optionally, the method further includes:

[0102] sending second configuration information, the second configuration information being used for indicating one or more of the following:

[0103] a frequency domain position of the second SSB transmission;

[0104] a transmission periodicity of the second SSB transmission;

[0105] a second index indication of the second SSB transmission, the second index indication being used for indicating an actually transmitted SSB index in a corresponding SSB pattern of the second SSB transmission.

[0106] Optionally, the first UL grant includes a secondary cell activation command.

[0107] Optionally, the secondary cell is the first cell.

[0108] In a third aspect, the embodiments of the present application further provide a SSB triggering device, the device comprising:

[0109] a first receiving module, configured to receive first indication information, the first indication information being used for triggering a first SSB transmission and scheduling a first downlink transmission;

[0110] or,

[0111] a first sending module, configured to send second indication information, the second indication information being used for triggering a second SSB transmission and requesting a first UL grant.

[0112] In a fourth aspect, the embodiments of the present application provide a SSB triggering device, the device comprising:

[0113] a second sending module, configured to send first indication information, the first indication information being used for triggering a first SSB transmission and scheduling a first downlink transmission;

[0114] or,

[0115] a second receiving module, configured to receive second indication information, the second indication information being used for triggering a second SSB transmission and requesting a first UL grant.

[0116] In a fifth aspect, the embodiments of the present application further provide a receiving-side device, comprising a transceiver and a processor, wherein the transceiver is configured to:

[0117] receive first indication information, wherein the first indication information is used for triggering first SSB transmission and scheduling first downlink transmission;

[0118] or,

[0119] send second indication information, wherein the second indication information is used for triggering second SSB transmission and requesting first UL grant.

[0120] In a sixth aspect, the embodiments of the present application further provide a sending-side device, comprising a transceiver and a processor, wherein the transceiver is configured to:

[0121] send first indication information, wherein the first indication information is used for triggering first SSB transmission and scheduling first downlink transmission;

[0122] or,

[0123] receive second indication information, wherein the second indication information is used for triggering second SSB transmission and requesting first UL grant.

[0124] In a seventh aspect, the embodiments of the present application provide a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the SSB triggering method according to any one of the first aspect.

[0125] In an eighth aspect, the embodiments of the present application further provide a computer program product stored in a storage medium, wherein the computer program product is executed by at least one processor to implement the steps of the SSB triggering method according to any one of the first aspect.

[0126] In the embodiments of the present application, the first indication information sent by the network-side device can be received by the terminal to trigger the first SSB transmission and the first downlink transmission. Alternatively, the second indication information sent by the terminal to the network-side device can be used to trigger the second SSB transmission based on the second indication information and request the uplink grant. In this way, the terminal and the network-side device can implement SSB activation triggering based on the first indication information or the second indication information, and perform data transmission, thereby reducing the overhead, simplifying the process, and improving network energy saving gain. BRIEF DESCRIPTION OF DRAWINGS

[0127] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0128] Figure 1 is a schematic diagram of the existing technology on-demand triggering SCell SSB mechanism;

[0129] Figure 2 is one of the flow schematic diagrams of the SSB triggering method provided by the embodiments of the present application;

[0130] Figure 3 is one of the SSB triggering mechanism schematic diagrams in the embodiments of the present application;

[0131] Figure 4 is the second SSB triggering mechanism schematic diagram in the embodiments of the present application;

[0132] Figure 5 is the second flow schematic diagram of the SSB triggering method provided by the embodiments of the present application;

[0133] Figure 6 is one of the schematic diagrams of the SSB triggering device provided by the embodiments of the present application;

[0134] Figure 7 is the second schematic diagram of the SSB triggering device provided by the embodiments of the present application;

[0135] Figure 8 is the third schematic diagram of the SSB triggering device provided by the embodiments of the present application;

[0136] Figure 9 is the fourth schematic diagram of the SSB triggering device provided by the embodiments of the present application;

[0137] Figure 10 is the structural schematic diagram of the receiving side device provided by the embodiments of the present application;

[0138] Figure 11 is the structural schematic diagram of the sending side device provided by the embodiments of the present application. DETAILED DESCRIPTION

[0139] The technical solutions of the embodiments of the present application will be described clearly and completely in the following description of the embodiments of the present application, and obviously, the described embodiments are some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0140] To make the embodiments of the present application clearer, the related technical knowledge involved in the embodiments of the present application is introduced as follows:

[0141] In the current 5th Generation Mobile Communication Technology (5G) New Radio (NR) technology, a terminal or terminal device mainly performs basic time domain / frequency domain / spatial domain synchronization, automatic gain control (AGC) and beam selection functions based on SSB. Specifically, the terminal device obtains SSB configuration based on the following steps:

[0142] 1) Based on the configured SSB period and the actual transmitted SSB index, the complete SSB transmission configuration is determined. Specifically, the fields of the transmission configuration are: SSB period (ssb-periodicityservingcell) (its unit is ms) and actual transmission SSB beam (ssb-positioninburst) (indicated by bitmap).

[0143] 2) Based on synchronization raster scanning, the transmission frequency point of the SSB is obtained, and then the subcarrier spacing of the SSB is determined according to the preset information. Or based on the indication information to obtain the transmission frequency point and the subcarrier spacing of the SSB. Specifically, as shown in Table 1, the synchronization raster frequency domain position is defined in Table 5.4.3.1-1 of TS38.104 of the 3rd Generation Partnership Project (3GPP).

[0144] Table 1 Global synchronization channel number (GSCN) parameters for the global frequency raster for above 3MHz channel bandwidth

[0145]

[0146]

[0147]

[0148] ​​To shorten the time of cell search, NR defines a synchronization raster to indicate the possible locations of SSB in frequency. Table 1 above gives the location of SSB center frequency (start frequency of the tenth physical resource block (PRB), nPRB=10, resource element (RE)=0) and the range of GSCN.

[0149] The subcarrier spacing of SSB is related to the operating band (operating band) to which the synchronization raster belongs, which is specifically defined in 3GPP TS 38.104.

[0150] At the same time, based on system information, the network can also directly indicate the absolute frequency point position of SSB, and the terminal device searches for SSB based on the absolute frequency point position. Specifically, ssbfrequency indicates the frequency point where SSB is located, and ssbsubcarrierspacing indicates the subcarrier spacing of SSB. Through this indication, the terminal device can also obtain the frequency and width information of SSB.

[0151] 3) According to the preset transmission pattern of the frequency spectrum and the half frame bit indicated in the master information block (MIB), determine the specific time slot and orthogonal frequency division multiplexing (OFDM) symbol where SSB is located. The preset transmission pattern can indicate which OFDM symbols in the half frame the SSB is transmitted on. The preset transmission pattern of different frequency points is related to the operating band and subcarrier spacing, which can be seen in 3GPP TS 38.213.

[0152] For example, in one case, for a frequency point less than 3GHz, there are at most 4 SSB beams in one SSB burst, which are transmitted with the 2nd, 8th, 16th, and 22nd OFDM symbols in the half frame as the starting OFDM symbol.

[0153] For example, for a frequency point greater than 3GHz and less than 6GHz, there are at most 8 SSB beams in one SSB burst, which are transmitted with the 2nd, 8th, 16th, 22nd, 30th, 36th, 44th, and 50th OFDM symbols in the half frame as the starting OFDM symbol.

[0154] Meanwhile, the MIB in the SSB also includes a half frame bit (carried in a physical broadcast channel (PBCH) load) for indicating a specific half frame in a frame in which the SSB beam is located.

[0155] In the prior art, in order to achieve the purpose of energy saving, a mechanism of triggering SSB of a secondary cell (SCell) on demand is usually used. As shown in Figure 1 In an NES cell scenario, SSB is usually not transmitted, and when a terminal device has a demand, a network side device can be triggered to transmit SSB on an SCell by sending a trigger signal. In a scenario in which an SCell has been activated, the terminal device can need to trigger SSB to complete synchronization / automatic gain control (AGC) functions, so as to complete related data or signal transmission. This is generally performed in the following manner:

[0156] 1. The terminal device / network side device sends signaling for triggering SSB;

[0157] 2. The network side device transmits SSB;

[0158] 3. The terminal device measures the SSB;

[0159] 4. An uplink / downlink transmission process in the prior art (for example, the network device transmits DCI to schedule a physical downlink shared channel (PDSCH)).

[0160] It can be seen that the mechanism of triggering SSB in the prior art usually has many processes and is relatively complex to implement, and the overhead / related additional power consumption and time delay caused by data transmission in an energy saving cell scenario are large. Therefore, the SSB triggering method, device, related equipment, storage medium and program product provided by the embodiments of the present application can solve the problems of many data transmission processes and complex implementation in an energy saving cell scenario.

[0161] The SSB triggering method, device, related equipment, storage medium and program product provided by the embodiments of the present application will be described in detail below in combination with the accompanying drawings and specific embodiments and application scenarios thereof.

[0162] Please refer to Figure 2 In the embodiments of the present application, an SSB triggering method is provided, and the method includes the following steps:

[0163] Step 101, receiving first indication information, the first indication information being used for triggering first SSB transmission and scheduling first downlink transmission;

[0164] Alternatively, the second indication information is transmitted, and the second indication information is used for triggering the second SSB transmission and for requesting the first UL grant.

[0165] It should be understood that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably in the embodiments of the present application, and the described techniques can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these techniques can also be applied outside the NR system application, such as in a 6th Generation (6G) communication system.

[0166] Furthermore, the embodiments of this application can be specifically applied to scenarios where the terminal has data transmission service requirements that necessitate SSB measurement and data transmission. Specifically, the executing entity of the SSB triggering method in the above embodiments can be a receiving-side device, such as a terminal device. The terminal can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle user equipment (VUE), pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal is not limited in the embodiments of this application.

[0167] In some embodiments of this application, when a receiving device such as a terminal has a data transmission service requirement, such as Figure 3 As shown, the transmitting device can send first indication information to the receiving device, such as the terminal, and the receiving device receives the first indication information. At this time, the first indication information can serve as a downlink signaling to trigger the first SSB transmission, thereby activating the SSB. It is worth noting that the first indication information triggering the first SSB transmission can also be understood as the first indication information requesting / indicating / enabling the first SSB transmission. That is, the first indication information in this embodiment can achieve any one or more of the functions of triggering, requesting, indicating, and enabling the first SSB transmission. Alternatively, the first indication information triggering the first SSB transmission can also be understood as the first indication information instructing the first SSB transmission to start / enable / activate. That is, the first indication information in this embodiment can instruct the first SSB transmission to start, enable, and activate any one or more of the functions.

[0168] It can be understood that the first indication information is received, which can also be described as monitoring the first indication information or detecting the first indication information. The present application does not limit this.

[0169] In addition, the first indication information can also be used to schedule the first downlink transmission. The first downlink transmission can be a channel state information reference signal (CSI-RS), a physical broadcast channel (PBCH), a demodulation reference signal (DMRS), a physical downlink shared channel (PDSCH), etc., which can be used to implement data transmission, data demodulation, broadcast system information, etc. The present application does not specifically limit the content of the first downlink transmission.

[0170] It can be understood that the first downlink transmission is scheduled, which can also be described as indicating the first downlink transmission or associating the first downlink transmission. The present application does not limit this.

[0171] In some embodiments of the present application, as shown in FIG. 1, the terminal and the like on the receiving side can also actively send the second indication information to the sending side device according to the data transmission service demand. Therefore, the second indication information can be uplink signaling, which triggers the second SSB transmission through the uplink signaling to realize the activation triggering of the SSB in the communication system. In this embodiment, the second indication information can be used as a piece of uplink signaling to trigger the second SSB transmission. It is worth mentioning that the second indication information triggers the second SSB transmission, which can also be understood as the second indication information being able to request / indicate / enable the second SSB transmission. That is, the second indication information in the embodiment of the present application can realize any one or more functions of triggering, requesting, indicating, and enabling the second SSB transmission. Alternatively, the second indication information triggers the second SSB transmission, which can also be understood as the second indication information indicating the second SSB transmission to be turned on / enabled / activated. That is, the second indication information in the embodiment of the present application can indicate any one or more functions of turning on, enabling, and activating the second SSB transmission. Figure 4 It can be understood that the second indication information is sent, which can also be described as triggering the second indication information or initiating the second indication information. The present application does not limit this.

[0172]

[0173] ​In addition, the second indication information can also be used to request a first uplink (UL) grant, and the first uplink grant can specifically include a secondary cell activation command, or can include scheduling information (for example, PDCCH or DCI) for indicating a terminal or other receiving side device to perform data transmission and how to send data information, frequency resource allocation for indicating a terminal or other receiving side device to send data frequency band or frequency resource, power control command for indicating a terminal or other receiving side device to adjust the power level when sending data, transmission format for indicating a terminal or other receiving side device to encode and modulate data for data transmission, etc. The specific content of the first uplink grant is not limited in the present application, and can be set according to the actual application scenario. Alternatively, the first uplink grant can also refer to an uplink shared channel resource (UL-SCH resource).

[0174] It can be understood that requesting the first uplink grant can also be described as triggering the first uplink grant or initiating the first uplink grant. The present application does not limit this.

[0175] In this way, in the above-mentioned embodiments of the present application, the terminal or other receiving side device and the sending side device can trigger the SSB transmission and schedule the data transmission at the same time based on the first indication information or the second indication information, reduce the network communication overhead, simplify the data transmission process, and improve the network energy saving gain.

[0176] Optionally, the first indication information is downlink control information (DCI).

[0177] In some embodiments, the first indication information can specifically be downlink control information (DCI), or can be other downlink signaling for indicating a terminal or other receiving side device to receive the first SSB and the downlink data.

[0178] Optionally, the first indication information includes at least one of the following:

[0179] A first bit field, the first bit field identifying that the first indication information is used to trigger the first SSB transmission and / or schedule the first downlink transmission;

[0180] An index value corresponding to the first cell;

[0181] A physical cell identifier corresponding to the first cell.

[0182] In some embodiments, when the first indication information is DCI, the first indication information can specifically include one or more of a first bit field, an index value corresponding to the first cell, and a physical cell identity corresponding to the first cell. The first bit field can be a bit field in which all bits are set to 0 or 1. The first bit field can be used to indicate triggering of the first SSB transmission and / or scheduling of the first downlink transmission when the receiving side device such as a terminal device has a service transmission requirement.

[0183] In addition, the first indication information can also include an index value corresponding to the first cell or a physical cell identity (PCI) corresponding to the first cell. The embodiments of the present application can be applied to a scenario in which the receiving side device such as a terminal device has a service transmission requirement after the secondary cell is activated. Since the first indication information needs to be sent to the receiving side device such as a terminal device via the secondary cell, the first cell can be a secondary cell, and the index value corresponding to the first cell and / or the physical cell identity corresponding to the first cell can be carried in the first indication information, so as to accurately find the first cell and send the first indication information to the receiving side device such as a terminal device via the first cell.

[0184] Optionally, the method further includes:

[0185] receiving the first SSB transmission and the first downlink transmission on the first cell.

[0186] As described in the above embodiments, the application scenario of the embodiments of the present application can be a scenario after the secondary cell is activated. Therefore, the first cell can be a secondary cell in a network in which the sending side device and the receiving side device are located, and the receiving side device such as a terminal device can receive the first SSB transmission and the first downlink transmission on the first cell.

[0187] Optionally, the receiving of the first indication information includes:

[0188] receiving the first indication information on the second cell.

[0189] In some embodiments, the receiving of the first indication information by the receiving side device such as a terminal device can be performed on a primary cell (Pcell) or a primary secondary cell (PScell). Therefore, the second cell can be a Pcell or a PScell.

[0190] Optionally, the method further includes:

[0191] receiving the first SSB transmission at the beginning of the first time unit;

[0192] The first time interval is a predefined value, or the first time interval is indicated by the first indication information.

[0193] In some embodiments, the second time unit in which the terminal or the like receiving side device receives the first indication information can be earlier than the first time unit in which the terminal or the like receiving side device receives the first SSB transmission. Therefore, there is a first time interval between the second time unit and the first time unit. By setting the first time interval, the terminal or the like receiving side device and the sending side network device can complete alignment on the starting time of the first SSB transmission. At the same time, the terminal device can make preparations for receiving the first SSB transmission after receiving the first indication information, including being able to fully receive signal parameters and the like information, thereby improving the quality and stability of signal reception, reducing the overall communication delay, and improving communication efficiency.

[0194] It should be noted that each time unit in the embodiments of the present application can be an Orthogonal Frequency Division Multiplexing (OFDM) symbol, one or more time slots, or one or more frames. In addition, the time unit of the time unit can also be milliseconds, seconds, etc. Therefore, since the first time unit and the second time unit are different by the first time interval, the time interval can be X OFDM symbols (X represents a number greater than or equal to 1), or X time slots, X frames, X milliseconds (ms), X seconds (s), etc. The present application does not make specific limitations. The dimensions of the time unit and the time interval can be the same or different. The dimensions of the first time unit and the second time unit can be the same or different.

[0195] It is worth mentioning that the above-mentioned first time interval can be a predefined value, that is, it can be a predefined interval in the communication protocol, or it can be preset before the implementation of the embodiments of the present application, or the first time interval can also be indicated by the first indication information. The first indication information can carry information of the first time interval, indicating that the base station or the like sending side device must follow the first time interval when sending the first indication information and the first SSB transmission in sequence.

[0196] Optionally, the method further comprises:

[0197] receiving the first SSB transmission in the second time interval;

[0198] The second time interval is a predefined value, or the second time interval is indicated by the first indication information.

[0199] In some other embodiments, the first SSB transmission is received in a second time interval, i.e., the first SSB transmission can be transmitted in a fixed time interval or time slot interval, and the entire stage from the transmission of the first SSB transmission by the sending device to the reception of the first SSB transmission by the receiving device such as the terminal should be arranged in the second time interval, so that the receiving device such as the terminal and the network-side sending device can complete alignment on the duration of the first SSB transmission, to ensure the quality and stability of information reception, and reduce the overall communication delay.

[0200] Similarly, the second time interval can also be a predefined value, i.e., it can be a predetermined interval in the communication protocol, or it can be preset before the implementation of the embodiments of the present application, or the second time interval can also be indicated by the first indication information, which can carry information of the second time interval, indicating that the base station and other sending devices should follow the second time interval when transmitting the first indication information and the first SSB transmission.

[0201] Optionally, the method further comprises:

[0202] receiving the first downlink transmission in a third time unit;

[0203] wherein a third time interval exists between the first time unit and the third time unit, and the third time interval is a predefined value, or the third time interval is indicated by the first indication information.

[0204] In some other embodiments, the receiving device or receiving side device can receive the first downlink transmission in a third time unit, and a third time interval can exist between the first time unit and the third time unit. The receiving side device such as the terminal receives the first indication information in the first time unit, and then after the third time interval, receives the first downlink transmission in the third time unit. In this way, the receiving side device such as the terminal and the sending device can complete alignment on the start time of receiving the first downlink transmission; at the same time, the receiving side device and the sending device can be reserved for the third time interval, so as to adjust the receiving or sending state of the receiving side device and the sending device, adapt to different communication needs, and flexibly adjust according to the actual situation, so as to realize communication.

[0205] Optionally, the method further comprises:

[0206] receiving the first downlink transmission in a fourth time unit;

[0207] wherein a fourth time interval exists between the fourth time unit and a fifth time unit, and the fifth time unit is the time unit for ending the reception of the first SSB transmission; the fourth time interval is a predefined value, or the fourth time interval is indicated by the first indication information.

[0208] In another specific embodiment of the present application, the receiving side device or receiving end device such as a terminal can receive the first downlink transmission in the fourth time unit. Before receiving the first downlink transmission, SSB triggering can be performed first. Specifically, the first indication information can be sent by the sending side device to the receiving side device, and then the first SSB transmission can be sent by the sending side device to the receiving side device after a first time interval. The first downlink transmission can be sent by the sending side device to the receiving side device at the end of the first SSB transmission and after a fourth time interval. The receiving side device can end the first downlink transmission at the end of the fourth time unit. Thus, the fifth time unit in which the receiving side device ends the first SSB transmission can be separated from the fourth time unit in which the receiving side device receives the first downlink transmission by a fourth time interval. In this way, the receiving side device such as a terminal and the sending device on the network side can complete alignment on the starting reception time of the first downlink transmission. At the same time, it can be ensured that the sending side and the receiving side start data transmission only after completing SSB triggering, meeting the communication requirements and improving the stability of communication.

[0209] Optionally, the first indication information includes at least one of the following:

[0210] a frequency domain position of the first SSB transmission;

[0211] a transmission period of the first SSB transmission;

[0212] a first index indication of the first SSB transmission, the first index indication being used to indicate an actually transmitted SSB index in an SSB pattern corresponding to the first SSB transmission.

[0213] In some embodiments, the first indication information can include the frequency domain position, the transmission period, and the first index indication of the first SSB transmission. By configuring these specific parameter information, the terminal device can quickly detect the first SSB transmission, and the transmission efficiency can be improved.

[0214] It is worth mentioning that the first index indication in the first indication information can indicate the actually transmitted SSB index in the SSB pattern corresponding to the first SSB transmission. At this time, the receiving side or receiving end (such as a terminal) can accurately identify and demodulate the transmitted signal, and ensure correct reception of data. In addition, the first index indication can also indicate that the terminal device does not need to detect SSB at the SSB index that is not actually transmitted, reducing the detection overhead of the terminal device and reducing the energy consumption of the terminal device.

[0215] Optionally, the first SSB transmission corresponds to a first SSB burst;

[0216] The spatial domain information of the multiple SSB indexes in the first SSB burst is consistent, or the multiple SSB indexes in the first SSB burst have the same quasi co-location (QCL) characteristics, or the multiple SSB indexes in the first SSB burst correspond to the same spatial domain transmission filter.

[0217] In some embodiments, the first SSB transmission can correspond to a first SSB burst, where the first SSB burst can be composed of one or more SSB indexes. In this case, the spatial domain information of each SSB index in the first SSB burst is consistent, or each SSB index in the first SSB burst has the same QCL characteristics, or each SSB index in the first SSB burst corresponds to the same spatial domain transmission filter. In this way, the terminal device can complete synchronization and AGC calibration based on fewer SSB indexes, improving transmission efficiency; at the same time, the network device can also send fewer SSB indexes, thereby reducing the power consumption of the network device sending SSBs.

[0218] In yet other embodiments, the first SSB burst can be composed of multiple SSB index sets, and each index set in the first SSB burst can include one or more SSB indexes. In this way, multiple SSB indexes are combined into index sets, and then multiple index sets are combined into the first SSB burst. In this case, the spatial domain information of each SSB index in the same SSB index set is consistent, or each SSB index in the same SSB index set has the same QCL characteristics, or each SSB index in the same SSB index set corresponds to the same spatial domain transmission filter. In this way, the terminal device can complete synchronization and AGC calibration based on fewer SSB bursts, improving transmission efficiency; at the same time, the network device can also send fewer SSB bursts, thereby reducing the power consumption of the network device sending SSBs.

[0219] In some embodiments, as described above, the receiving end can process these signals according to consistent spatial domain information, QCL characteristics, or use the same receiving filter structure, which simplifies the design of the receiving end, saves network system resources, reduces repeated processing and calculation processes, and improves resource utilization.

[0220] In addition, in the above embodiments, the same quasi co-location (QCL) feature of the SSB index, i.e., the QCL configuration of any one of the plurality of SSB indexes, is still applicable to other SSB indexes. In another embodiment, the SSB indexes corresponding to each index set in the plurality of SSB index sets can have the same transmission configuration indicator (TCL) configuration.

[0221] Optionally, the spatial domain information of the SSB indexes in the first SSB index set is consistent; or the SSB indexes in the first SSB index set have the same QCL feature; or the SSB indexes in the first SSB index set correspond to the same spatial domain transmission filter.

[0222] The first SSB index set is one or more SSB indexes actually transmitted in the first index indication.

[0223] In some embodiments, the one or more SSB indexes actually transmitted in the first index indication can constitute a first SSB index set. The first SSB index set can include one or more SSB indexes. At this time, the spatial domain information of each SSB index in the first SSB index set is consistent, or each SSB index in the first SSB index set has the same QCL feature, or each SSB index in the first SSB index set corresponds to the same spatial domain transmission filter. In this way, the terminal device can complete synchronization and AGC calibration based on fewer SSB indexes, improving transmission efficiency; at the same time, the network device can also transmit fewer SSB indexes, thereby reducing the power consumption of the network device transmitting SSB.

[0224] In yet another embodiment, the first SSB index set can also include a plurality of SSB index sets, and each index set can include a plurality of SSB indexes. At this time, the spatial domain information of all SSB indexes in the same SSB index set in the first SSB index set can be consistent, or all SSB indexes in the same SSB index set in the first SSB index set can have the same QCL feature or have the same spatial domain reception filter. In this way, the terminal device can complete synchronization and AGC calibration based on fewer SSB bursts, improving transmission efficiency; at the same time, the network device can also transmit fewer SSB bursts, thereby reducing the power consumption of the network device transmitting SSB.

[0225] Optionally, the first indication information further includes reference signal indication information, and the reference signal indication information indicates first channel state information reference signal (CSI-RS) transmission.

[0226] In some embodiments, the first indication information can further carry reference signal indication information, and the transmission of the first CSI-RS is indicated by the reference signal indication information. Since the CSI-RS is usually used for the receiving end to estimate the channel state and perform signal demodulation and decoding, the receiving end can accurately obtain the channel state information and feed back the estimation result to the transmitting end, thereby further improving the transmission accuracy and efficiency. In addition, the transmitting end can also perform adaptive modulation and coding according to the channel state information of the receiving end to improve the reliability and transmission efficiency of the signal.

[0227] Optionally, the first downlink transmission is a first CSI-RS.

[0228] In another embodiment, the first downlink transmission can be designed as a first CSI-RS, which can effectively utilize the channel state information for signal processing and optimization, improve the performance and efficiency of the system, and also enable reliable communication connection, optimize wireless communication, and provide better user experience.

[0229] Optionally, the first downlink transmission includes a media access control layer control element (MAC CE) of a secondary cell activation command; or

[0230] The first downlink transmission includes radio resource management layer (RRC) signaling indicating secondary cell activation.

[0231] In another specific embodiment of the present application, the first downlink transmission can include a media access control layer control element (Media Access Control Control Element, MAC CE) of a secondary cell activation command (SCellActivation Command) or radio resource management layer (Radio Resource Control, RRC) signaling indicating secondary cell activation. When the first downlink transmission includes the MAC CE of the secondary cell activation command, that is, the MAC layer in the network has relevant control information to indicate the activation state of the secondary cell. In this way, the receiving end can quickly identify and process the activation information of the secondary cell through the MAC CE, thereby speeding up the activation process and improving the response speed and efficiency of the network. In addition, when the first downlink transmission includes the RRC signaling indicating the activation of the secondary cell, that is, the RRC layer can have relevant signaling to indicate the activation state of the secondary cell. In this way, through the RRC, all devices in the network can be ensured to timely learn the activation state of the cell, thereby coordinating the communication between devices, optimizing resource allocation and management, and improving the overall performance and efficiency of the system.

[0232] Optionally, the secondary cell is the first cell.

[0233] Specifically, the receiving side in the above embodiments can receive the first SSB transmission and the first downlink transmission on the first cell, that is, the first cell can be an SCell at this time. In another embodiment, when the first downlink transmission includes a MAC CE or an RRC, the MAC CE or the RRC can be used to indicate the activation of the secondary cell, that is, the secondary cell can be the first cell at this time.

[0234] Optionally, the second indication information is an uplink scheduling request (SR) or a physical random access channel (PRACH).

[0235] In specific embodiments of the present application, the second indication information can be an uplink scheduling request (SR), which allows the receiving side device such as a terminal to request uplink resources to transmit data. At this time, the SR can be transmitted, indicating that the receiving side device such as a terminal requests uplink resources, and the triggering of the second SSB transmission can be implemented at the same time. In this way, the triggering of the second SSB transmission by the SR can ensure that the receiving side device such as a terminal can obtain uplink resources in time, improving the efficiency and real-time performance of data transmission.

[0236] In another embodiment, the second indication information can also be a physical random access channel, which is a channel for a device to access a network. In this case, the physical random access channel (PRACH) is transmitted, which at this time indicates that the receiving side device such as a terminal is requesting uplink resources and triggers the second SSB transmission through the PRACH. In this way, the receiving side device such as a terminal can obtain uplink resources in time, improving the efficiency and real-time performance of data transmission.

[0237] Optionally, the method further comprises:

[0238] receiving the second SSB transmission on the first cell, and receiving the first uplink grant on the first cell.

[0239] In some embodiments, the receiving side device can actively send the second indication information to the sending side to request the sending side to trigger the SSB between the receiving side and the sending side. The receiving side can receive the second SSB transmission, and the receiving side can receive the first uplink grant. Specifically, the process of the receiving side receiving the second SSB transmission and the first uplink grant in the present embodiment can be transmitted on the first cell. The first cell in the embodiments of the present application can be a cell where the receiving side device and the sending side device are located, and data transmission and resource scheduling between the receiving side and the sending side are implemented through the first cell, improving communication efficiency.

[0240] Optionally, the method further comprises:

[0241] transmit the second indication information on the second cell.

[0242] In yet another specific embodiment of the present application, the receiving side device such as a terminal can transmit the second indication information to the sending side device on the second cell. The receiving side device actively transmits the second indication information to the sending side. At this time, the second cell can be either a Pcell or a PScell, which can be determined according to actual data transmission requirements, and the present application does not limit this.

[0243] Optionally, the method further comprises:

[0244] starting to receive the second SSB transmission in a sixth time unit;

[0245] wherein a fifth time interval exists between the sixth time unit and a seventh time unit, the seventh time unit being the time unit where the second indication information is located, and the fifth time interval being a predefined value, or the fifth time interval being indicated by the second indication information.

[0246] In some embodiments, the receiving side device such as a terminal can start to receive the second SSB transmission in a sixth time unit and transmit the second indication information to the sending side device in a seventh time unit. Since the fifth time interval exists between the sixth time unit and the seventh time unit, there is a time difference between the receiving side transmitting the second indication information and the receiving side receiving the second SSB transmission. Specifically, the receiving side can first transmit the second indication information to the sending side, and after the fifth time interval, the receiving side starts to receive the second SSB transmission sent by the sending side. In this way, by setting the fifth time interval, the receiving side device such as a terminal and the sending side network device can complete alignment on the starting time of the first SSB transmission. At the same time, the terminal device reserves preparation time in the process of transmitting the second indication information to receiving the second SSB transmission, so that the receiving side device such as a terminal can fully receive signal parameters and other information when receiving the second SSB transmission, thereby improving the quality and stability of signal reception, reducing the overall communication delay, and improving the communication efficiency.

[0247] It should be noted that the sixth time unit and the seventh time unit in the above embodiments can be an Orthogonal Frequency Division Multiplexing (OFDM) symbol, one or more time slots, or one or more frames. In addition, the time unit of the time unit can also be a millisecond, a second, etc. In this way, since the sixth time unit and the seventh time unit are different by the fifth time interval, the time interval can be X OFDM symbols (X represents a number greater than or equal to 1), or X time slots, X frames, X milliseconds (ms), X seconds (s), etc. The present application does not make specific limitations. The dimensions of the time unit and the time interval can be the same or different. The dimensions of the sixth time unit and the seventh time unit can be the same or different.

[0248] It is worth mentioning that the fifth time interval can be a predefined value, that is, it can be a predetermined interval in the communication protocol, or it can be set in advance before the implementation of the embodiments of the present application, or the fifth time interval can also be indicated by the second indication information. The second indication information can carry information of the fifth time interval, indicating that the receiving side and the sending side must follow the fifth time interval when sending the second indication information and the second SSB transmission in sequence.

[0249] Optionally, the method further comprises:

[0250] receiving the second SSB transmission within the sixth time interval;

[0251] The sixth time interval is a predefined value, or the sixth time interval is indicated by the second indication information.

[0252] In some embodiments, the receiving side device such as a terminal can also receive the second SSB transmission within the sixth time interval. For example, the sixth SSB transmission can be transmitted within a fixed time interval or a time slot interval. From the sending of the second SSB transmission by the network device to the receiving of the second SSB transmission by the terminal, the entire process should be controlled within the sixth time interval, which can align the receiving side device such as a terminal with the sending side device on the duration of the second SSB transmission, so as to ensure the quality and stability of information reception and reduce the delay of overall communication.

[0253] Similarly, the sixth time interval can also be a predefined value, that is, it can be a predetermined interval in the communication protocol, or it can be set in advance before the implementation of the embodiments of the present application, or the sixth time interval can also be indicated by the second indication information. The second indication information can carry information of the sixth time interval, indicating that the sending side device must follow the sixth time interval when sending the second indication information and the second SSB transmission in sequence.

[0254] Optionally, the method further comprises:

[0255] receiving the first uplink grant at the eighth time unit;

[0256] wherein a seventh time interval exists between the sixth time unit and the eighth time unit, the seventh time interval being a predefined value, or the seventh time interval being determined by the second indication information.

[0257] In yet another embodiment, the receiving side device such as a terminal can receive the first uplink grant at the eighth time unit. Since a seventh time interval can exist between the sixth time unit and the eighth time unit, the receiving side can send the second indication information at the sixth time unit, and then after the seventh time interval, start receiving the first uplink grant at the eighth time unit. In this way, the receiving side device such as a terminal and the sending side device can complete alignment on the starting receiving time of the first uplink grant; at the same time, the eighth time interval can be reserved for the receiving side and the sending side, so as to facilitate the receiving side or the sending side to fully adjust the receiving or sending state, adapt to different communication needs, and flexibly adjust to achieve efficient communication according to actual conditions.

[0258] It can be understood that receiving the first uplink grant at the eighth time unit can also be described as monitoring the first uplink grant at the eighth time unit, or detecting the first uplink grant at the eighth time unit. The present application does not limit this.

[0259] Optionally, the method further comprises:

[0260] receiving the first uplink grant at the ninth time unit;

[0261] wherein an eighth time interval exists between the ninth time unit and the tenth time unit, the tenth time unit being a time unit for ending receiving the second SSB, and the eighth time interval being a predefined value, or the eighth time interval being indicated by the second indication information.

[0262] In some embodiments, the receiving side device such as a terminal can receive the first uplink grant at the ninth time unit. In network communication, the receiving side device such as a terminal needs to obtain an uplink grant to transmit data to the sending side device such as a base station, and therefore the uplink grant usually includes allocation information of time and frequency resources to ensure that data transmission between different devices does not conflict, and to effectively utilize system resources. In this way, the second indication information can request the sending side to send the first uplink grant, and through the first uplink grant, appropriate time and frequency domain resources can be allocated to the receiving side device or the sending side device, to avoid resource waste and improve communication efficiency.

[0263] Further, the triggering of the SSB can be implemented before the receiving of the first uplink grant. Specifically, the second indication information can be sent by the sending side device to the receiving side device, for example, the terminal sends the second indication information to the base station or other sending side device. Subsequently, after the eighth time interval, the second SSB transmission can be sent by the base station or other sending side device to the terminal or other receiving side device, and at the end of the second SSB transmission and after the eighth time interval, the first uplink grant is sent by the sending side device to the receiving side device, and the terminal or other receiving side device can start receiving the first uplink grant at the ninth time unit.

[0264] Therefore, the tenth time unit at which the receiving side ends receiving the second SSB transmission can be spaced apart from the ninth time unit at which it receives the first uplink grant by the eighth time interval, which can enable the terminal or other receiving side device and the sending side device to complete alignment on the starting receiving time of the first uplink grant; at the same time, it can be ensured that the receiving side and the sending side start data transmission only after completing the SSB triggering, meet the communication demand, and improve the communication stability.

[0265] It can be understood that starting to receive the first uplink grant at the ninth time unit can also be described as starting to monitor the first uplink grant at the ninth time unit, or starting to detect the first uplink grant at the ninth time unit. The present application does not limit this.

[0266] Optionally, before sending the second indication information, the method further comprises:

[0267] Receiving first configuration information, the first configuration information being used to indicate that the second indication information is associated with the first cell.

[0268] In some embodiments of the present application, the receiving side can also receive the first configuration information sent by the sending side, and the first configuration information can be information associated with the first cell that transmits the second indication information. The first configuration information can include a cell identifier (Cell ID), frequency information, transmission parameters, etc., and through the first configuration information, the receiving side device can correctly identify and connect to a specific cell. When the receiving side device receives the first configuration information, it can determine how to process the received second indication information according to the first configuration information, and establish an association with the corresponding first cell.

[0269] Optionally, the method further comprises:

[0270] Receiving second configuration information, the second configuration information being used to indicate one or more of the following:

[0271] The frequency domain position of the second SSB transmission;

[0272] The transmission period of the second SSB transmission;

[0273] a second index indication of the second SSB transmission, the second index indication being used to indicate an actually transmitted SSB index within a second SSB pattern corresponding to the second SSB transmission.

[0274] In some embodiments, the sending side can send the receiving side second configuration information, which can include the frequency domain position, transmission period and second index indication corresponding to the second SSB transmission. The receiving side device such as a terminal can directly determine the frequency domain position of the second SSB transmission through the second configuration information. This process can make the terminal device quickly detect the first SSB transmission and improve transmission efficiency by configuring these specific parameter information. In addition, the second index indication can also indicate that the terminal device does not need to detect SSB at the SSB index that is not actually transmitted, reducing the detection overhead of the terminal device and reducing the energy consumption of the terminal device.

[0275] Optionally, the second SSB transmission corresponds to a second SSB burst.

[0276] The spatial domain information of the plurality of SSB indexes in the second SSB burst is consistent, or the plurality of SSB indexes in the second SSB burst have the same QCL characteristics, or the plurality of SSB indexes in the second SSB burst correspond to the same spatial domain transmission filter.

[0277] In some embodiments, the second SSB transmission can correspond to a second SSB burst, wherein the second SSB burst can be composed of one or more SSB indexes. At this time, the spatial domain information of each SSB index in the second SSB burst is consistent, or each SSB index in the second SSB burst has the same quasi-co-location QCL characteristics, or each SSB index in the second SSB burst corresponds to the same spatial domain transmission filter. In this way, the terminal device can complete synchronization and AGC calibration based on fewer SSB indexes, improving transmission efficiency; at the same time, the network device can also send fewer SSB indexes, thereby reducing the power consumption of the network device sending SSB.

[0278] In yet another embodiment, the second SSB burst can be composed of multiple SSB index sets, and each index set in the second SSB burst can include one or more SSB indexes. In this way, multiple SSB indexes are combined into an index set, and then multiple index sets are combined into the second SSB burst again. At this time, the spatial domain information of each SSB index in the same index set is consistent, or each SSB index in the same index set has the same quasi-co-location (QCL) characteristics, or the spatial domain transmission filter corresponding to each SSB index in the same index set is the same. In this way, the terminal device can complete synchronization and AGC calibration based on fewer SSB bursts, improving transmission efficiency; at the same time, the network device can also transmit fewer SSB bursts, thereby reducing the power consumption of the network device transmitting SSB.

[0279] Further, the network system can dynamically adjust the number of index sets and the structure of the SSB burst according to the needs to adapt to different communication scenarios. Multiple signals can also be transmitted in the same transmission period, reducing transmission delay and improving the throughput of the system. As can be seen, the structure of combining SSB indexes into an SSB burst can help signal identification and demodulation, and improve transmission efficiency.

[0280] In the above embodiments, the receiving end can process these signals according to consistent spatial domain information, QCL characteristics, or the same receiving filter structure, thereby achieving simplified design of the receiving end, saving network system resources, reducing repeated processing and calculation processes, and improving resource utilization.

[0281] In addition, in the above embodiments, the same quasi-co-location (QCL) characteristics, i.e., the QCL configuration of any one of the multiple SSB indexes, are still applicable to other SSB indexes. In another embodiment, the SSB indexes corresponding to each index set in the multiple SSB index sets can have the same TCL configuration.

[0282] Optionally, the spatial domain information of the SSB indexes in the second SSB index set is consistent; or the SSB indexes in the second SSB index set have the same QCL characteristics; or the spatial domain transmission filters corresponding to the SSB indexes in the second SSB index set are the same.

[0283] The second SSB index set is one or more SSB indexes actually transmitted in the second index indication.

[0284] In some embodiments, the one or more SSB indexes indicated in the second index indication to indicate actual transmission can constitute a second SSB index set. In this case, the second SSB index set can include one or more SSB indexes. At this time, the spatial domain information of each SSB index in the second SSB index set is consistent, or each SSB index in the second SSB index set has the same quasi co-location (QCL) characteristics, or each SSB index in the second SSB index set corresponds to the same spatial domain transmission filter. In this way, the terminal device can complete synchronization and AGC calibration based on fewer SSB indexes, improving transmission efficiency; at the same time, the network device can also send fewer SSB indexes, thereby reducing the power consumption of the network device sending SSB.

[0285] In yet other embodiments, the second SSB index set can also include multiple SSB index sets, and each index set can include multiple SSB indexes. At this time, the spatial domain information of all SSB indexes in the same SSB index set in the second SSB index set can be consistent, or all SSB indexes in the same SSB index set in the second SSB index set can have the same QCL characteristics or have the same spatial domain reception filter. In this way, the terminal device can complete synchronization and AGC calibration based on fewer SSB bursts, improving transmission efficiency; at the same time, the network device can also send fewer SSB bursts, thereby reducing the power consumption of the network device sending SSB.

[0286] Optionally, the first uplink grant includes a secondary cell activation command.

[0287] It can be understood that in a communication system, the secondary cell activation command can be an indication sent by the network side to the user side, used to activate the communication connection between the user side device and the secondary cell. The secondary cell is usually used to provide additional capacity and coverage to support more user side devices to access and transmit data.

[0288] In specific embodiments of the present application, when the terminal or other receiving side device receives the first uplink grant, the first uplink grant can include a secondary cell activation command, that is, the terminal or other receiving side device not only needs to follow the uplink grant of the primary cell, but also needs to activate the communication connection with the secondary cell to perform data transmission on the secondary cell. In this way, the secondary cell can be activated to support more devices to access the network and transmit data at the same time, improve the capacity and coverage of the network system, and also expand the coverage of the network to provide more extensive communication services, especially in high-density user areas or edge areas. In addition, the secondary cell can also share the load of the primary cell, effectively allocate and utilize system resources, and avoid resource bottlenecks and congestion. In addition, by reasonably configuring the secondary cell activation command, the network communication quality can be improved, the interference and data transmission errors can be reduced, and the user experience can be improved.

[0289] Optionally, the secondary cell is the first cell.

[0290] Specifically, the receiving side in the above embodiments can receive the second SSB transmission and the first uplink grant on the first cell, that is, the first cell can be the Scell at this time. In another embodiment, when the secondary cell activation command is included in the first uplink grant, the cell activated by the activation command at this time can be the first cell.

[0291] See Figure 5 The embodiments of the present application also provide a synchronization signal block (SSB) triggering method, which comprises:

[0292] Step 201, sending first indication information, wherein the first indication information is used for triggering a first SSB transmission and scheduling a first downlink transmission.

[0293] Alternatively,

[0294] Receiving second indication information, wherein the second indication information is used for triggering a second SSB transmission and requesting a first UL grant.

[0295] It should be noted that the embodiments of the present application can be applied in a scenario where a terminal or other receiving side device has a data transmission service demand requiring SSB measurement and data transmission after the SCell is activated. Specifically, the execution subject of the SSB triggering method in the above embodiments can be a sending side device, such as a network device, for example, a base station.

[0296] The sending side device can be an access network device or a core network device, wherein the access network device can also be referred to as a radio access network device, a radio access network (RAN), a radio access network function or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point or a WiFi node, etc. The base station can be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B, a home evolved node B, a transmission reception point (TRP) or some other appropriate term in the art, as long as the same technical effect is achieved. The base station is not limited to a specific technical term, and it should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.The core network device can include, but is not limited to, at least one of the following: a core network node, a core network function, a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), and the like. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited.

[0297] Optionally, the first indication information is DCI.

[0298] Optionally, the first indication information includes at least one of the following:

[0299] a first bit field, the first bit field identifying that the first indication information is used for triggering the first SSB transmission and / or scheduling the first downlink transmission;

[0300] an index value corresponding to the first cell;

[0301] a physical cell identifier corresponding to the first cell.

[0302] Optionally, the method further includes:

[0303] transmitting the first SSB transmission and the first downlink transmission on the first cell.

[0304] Optionally, the method further comprises: transmitting the first indication information on a second cell.

[0305] Optionally, the first indication information comprises at least one of:

[0306] a frequency domain location of the first SSB transmission;

[0307] a transmission periodicity of the first SSB transmission;

[0308] a first index indication of the first SSB transmission, the first index indication being used to indicate an actually transmitted SSB index within a SSB pattern corresponding to the first SSB transmission.

[0309] Optionally, the first indication information further comprises reference signal indication information, the reference signal indication information being used to indicate a first CSI-RS transmission.

[0310] Optionally, the first downlink transmission is a first CSI-RS.

[0311] Optionally, the first downlink transmission comprises a MAC CE of a secondary cell activation command; or,

[0312] the first downlink transmission comprises RRC signaling indicating a secondary cell activation.

[0313] Optionally, the secondary cell is a first cell.

[0314] Optionally, the second indication information is an SR, or a PRACH.

[0315] Optionally, the method further comprises:

[0316] transmitting the second SSB transmission on a first cell, and transmitting the first UL grant on the first cell.

[0317] Optionally, the method further comprises:

[0318] receiving the second indication information on a second cell.

[0319] Optionally, before the receiving the second indication information, the method further comprises:

[0320] transmitting first configuration information, the first configuration information being used to indicate that the second indication information is associated with the first cell.

[0321] Optionally, the method further comprises:

[0322] transmitting second configuration information, the second configuration information being used for indicating one or more of the following;

[0323] a frequency domain location of the second SSB transmission;

[0324] a transmission periodicity of the second SSB transmission;

[0325] a second index indication of the second SSB transmission, the second index indication being used for indicating a SSB index actually transmitted in a second SSB transmission corresponding to a SSB pattern.

[0326] Optionally, the first UL grant comprises a secondary cell activation command.

[0327] Optionally, the secondary cell is a first cell.

[0328] In a third aspect, the embodiments of the present application further provide a SSB triggering device, the device comprising:

[0329] a first receiving module, configured to receive first indication information, the first indication information being used for triggering a first SSB transmission and scheduling a first downlink transmission;

[0330] or,

[0331] a first sending module, configured to send second indication information, the second indication information being used for triggering a second SSB transmission and requesting a first UL grant.

[0332] In a fourth aspect, the embodiments of the present application provide a SSB triggering device, the device comprising:

[0333] a second sending module, configured to send first indication information, the first indication information being used for triggering a first SSB transmission and scheduling a first downlink transmission;

[0334] or,

[0335] a second receiving module, configured to receive second indication information, the second indication information being used for triggering a second SSB transmission and requesting a first UL grant.

[0336] Based on the above, the embodiments of the present application provide a SSB triggering method to solve the problem of large data transmission overhead and long latency in the NES Cell scenario. In the embodiments of the present application, the receiving side device such as a terminal and the sending side device such as a network device can implement SSB activation triggering based on the first indication information or the second indication information, and perform data transmission, thereby reducing the overhead, simplifying the process, and improving the network energy saving gain. In the above embodiments, the SSB triggering method and the foregoing SSB transmission method can be combined to achieve the same technical effects. Figure 2The media negotiation method described in the specification is based on the same application concept, and since the principles of solving problems are similar, the implementation of the SSB triggering method of the present application can refer to the foregoing embodiments, and the repeated parts will not be described again.

[0337] Referring to Figure 6 and Figure 7 , the embodiments of the present application also provide an SSB triggering device, which specifically comprises:

[0338] The first receiving module 301 is configured to receive first indication information, wherein the first indication information is used to trigger first SSB transmission and schedule first downlink transmission.

[0339] Alternatively,

[0340] The first sending module 302 is configured to send second indication information, wherein the second indication information is used to trigger second SSB transmission and request a first UL grant.

[0341] Optionally, the first indication information is downlink control information (DCI).

[0342] Optionally, the first indication information comprises at least one of the following:

[0343] A first bit field, wherein the first bit field identifies that the first indication information is used to trigger the first SSB transmission and schedule the first downlink transmission.

[0344] An index value corresponding to the first cell;

[0345] A physical cell identifier corresponding to the first cell.

[0346] Optionally, the SSB triggering device further comprises:

[0347] The third receiving module is configured to receive the first SSB transmission and the first downlink transmission on the first cell.

[0348] Optionally, the first receiving module 301 is configured to:

[0349] Receive the first indication information on a second cell.

[0350] Optionally, the SSB triggering device further comprises:

[0351] The fifth receiving module is configured to start receiving the first SSB transmission at a first time unit.

[0352] The first time interval is a predefined value, or the first time interval is indicated by the first indication information.

[0353] Optionally, the SSB triggering apparatus further includes:

[0354] The sixth receiving module is configured to receive the first SSB transmission in a second time interval.

[0355] The second time interval is a predefined value, or the second time interval is indicated by the first indication information.

[0356] Optionally, the SSB triggering apparatus further includes:

[0357] The seventh receiving module is configured to receive the first downlink transmission in a third time unit.

[0358] The third time interval is a predefined value, or the third time interval is determined by the first indication information.

[0359] Optionally, the SSB triggering apparatus further includes:

[0360] The eighth receiving module is configured to receive the first downlink transmission in a fourth time unit.

[0361] The fourth time interval is a predefined value, or the fourth time interval is indicated by the first indication information.

[0362] Optionally, the first indication information includes at least one of the following:

[0363] A frequency domain position of the first SSB transmission.

[0364] A transmission period of the first SSB transmission.

[0365] A first index indication of the first SSB transmission, the first index indication being used to indicate an actually transmitted SSB index in a SSB pattern corresponding to the first SSB transmission.

[0366] Optionally, the first SSB transmission corresponds to a first SSB set burst.

[0367] The spatial domain information of the plurality of SSB indexes in the first SSB burst is consistent, or the plurality of SSB indexes in the first SSB burst have the same quasi co-location (QCL) characteristics, or the plurality of SSB indexes in the first SSB burst correspond to the same spatial domain transmission filter.

[0368] Optionally, the spatial domain information of the SSB indexes in the first SSB index set is consistent, or the SSB indexes in the first SSB index set have the same QCL characteristics, or the SSB indexes in the first SSB index set correspond to the same spatial domain transmission filter.

[0369] The first SSB index set is one or more SSB indexes actually transmitted in the first index indication.

[0370] Optionally, the first indication information further includes reference signal indication information, and the reference signal indication information indicates first channel state information reference signal (CSI-RS) transmission.

[0371] Optionally, the first downlink transmission is a first CSI-RS.

[0372] Optionally, the first downlink transmission includes a medium access control (MAC) control element (CE) of a secondary cell activation command, or

[0373] The first downlink transmission includes radio resource management (RRC) signaling indicating secondary cell activation.

[0374] Optionally, the secondary cell is a first cell.

[0375] Optionally, the second indication information is an uplink scheduling request (SR) or a physical random access channel (PRACH).

[0376] Optionally, the SSB triggering apparatus further includes:

[0377] The ninth receiving module is configured to receive the second SSB transmission on the first cell and receive the first uplink grant on the first cell.

[0378] Optionally, the SSB triggering apparatus further includes:

[0379] The tenth receiving module is configured to send the second indication information on a second cell.

[0380] Optionally, the SSB triggering apparatus further includes:

[0381] The eleventh receiving module is configured to start receiving the second SSB transmission at a sixth time unit.

[0382] The sixth time unit and the seventh time unit are separated by a fifth time interval, the seventh time unit is a time unit where the second indication information is located, and the fifth time interval is a predefined value, or the fifth time interval is indicated by the second indication information.

[0383] Optionally, the SSB triggering apparatus further includes:

[0384] The twelfth receiving module is configured to receive the second SSB transmission in a sixth time interval.

[0385] The sixth time interval is a predefined value, or the sixth time interval is indicated by the second indication information.

[0386] Optionally, the SSB triggering apparatus further includes:

[0387] The thirteenth receiving module is configured to receive the first uplink grant starting from an eighth time unit.

[0388] The sixth time unit and the eighth time unit are separated by a seventh time interval, and the seventh time interval is a predefined value, or the seventh time interval is determined by the second indication information.

[0389] Optionally, the SSB triggering apparatus further includes:

[0390] The fourteenth receiving module is configured to receive the first uplink grant starting from a ninth time unit.

[0391] The ninth time unit and a tenth time unit are separated by an eighth time interval, the tenth time unit is a time unit where the second SSB is received, and the eighth time interval is a predefined value, or the eighth time interval is indicated by the second indication information.

[0392] Optionally, before the second indication information is sent, the SSB triggering apparatus further includes:

[0393] The fifteenth receiving module is configured to receive first configuration information, and the first configuration information is used to indicate that the second indication information is associated with the first cell.

[0394] Optionally, the SSB triggering apparatus further includes:

[0395] The sixteenth receiving module is configured to receive second configuration information, and the second configuration information is used to indicate one or more of the following:

[0396] A frequency domain position of the second SSB transmission;

[0397] A transmission period of the second SSB transmission;

[0398] a second index indication of the second SSB transmission, the second index indication being used to indicate a SSB index of a second SSB transmission actually transmitted within a second SSB pattern.

[0399] Optionally, the second SSB transmission corresponds to a second SSB burst.

[0400] Optionally, a spatial domain information of the multiple SSB indexes in the second SSB burst is consistent, or the multiple SSB indexes in the second SSB burst have a same QCL characteristic, or a spatial domain transmission filter corresponding to the multiple SSB indexes in the second SSB burst is same.

[0401] Optionally, a spatial domain information of the SSB indexes in the second SSB index set is consistent, or the SSB indexes in the second SSB index set have a same QCL characteristic, or a spatial domain transmission filter corresponding to the SSB indexes in the second SSB index set is same.

[0402] Optionally, the second SSB index set is one or more SSB indexes actually transmitted indicated in the second index indication.

[0403] Optionally, the first uplink grant includes a secondary cell activation command.

[0404] Optionally, the secondary cell is a first cell.

[0405] It should be noted that the SSB triggering device provided in the embodiments of the present application is capable of executing the SSB triggering method applied to the receiving side as described above, and all the implementation manners in the SSB triggering method embodiments are applicable to the SSB triggering device, and can all achieve the same or similar beneficial effects. To avoid repeated description, the embodiments will not be described herein.

[0406] Please refer to Figure 8 and Figure 9 , the embodiments of the present application provide a SSB triggering device, the device comprises:

[0407] a second sending module 401, configured to send first indication information, the first indication information being used to trigger a first SSB transmission and schedule a first downlink transmission;

[0408] or,

[0409] a second receiving module 402, configured to receive second indication information, the second indication information being used to trigger a second SSB transmission and request a first UL grant.

[0410] Optionally, the first indication information is DCI.

[0411] Optionally, the first indication information comprises at least one of:

[0412] a first bit field, the first bit field indicating that the first indication information is used to indicate the first SSB transmission and / or schedule the first downlink transmission;

[0413] an index value corresponding to the first cell;

[0414] a physical cell identity corresponding to the first cell.

[0415] Optionally, the SSB triggering apparatus further comprises:

[0416] a third sending module, configured to send the first SSB transmission and the first downlink transmission on the first cell.

[0417] Optionally, the SSB triggering apparatus further comprises:

[0418] a fourth sending module, configured to send the first indication information on a second cell.

[0419] Optionally, the first indication information comprises at least one of:

[0420] a frequency domain position of the first SSB transmission;

[0421] a transmission period of the first SSB transmission;

[0422] a first index indication of the first SSB transmission, the first index indication being used to indicate an actually transmitted SSB index within a SSB pattern corresponding to the first SSB transmission.

[0423] Optionally, the first indication information further comprises reference signal indication information, the reference signal indication information being used to indicate a first CSI-RS transmission.

[0424] Optionally, the first downlink transmission is a first CSI-RS.

[0425] Optionally, the first downlink transmission comprises a MAC CE of a secondary cell activation command; or,

[0426] the first downlink transmission comprises RRC signaling indicating secondary cell activation.

[0427] Optionally, the secondary cell is a first cell.

[0428] Optionally, the second indication information is an SR or a PRACH.

[0429] Optionally, the SSB triggering apparatus further comprises:

[0430] The fifth sending module is configured to send the second SSB transmission on the first cell, and send the first UL grant on the first cell.

[0431] Optionally, the SSB triggering apparatus further includes:

[0432] The seventeenth receiving module is configured to receive the second indication information on the second cell.

[0433] Optionally, before the receiving of the second indication information, the SSB triggering apparatus further includes:

[0434] The sixth sending module is configured to send first configuration information, the first configuration information being used to indicate that the second indication information is associated with the first cell.

[0435] Optionally, the SSB triggering apparatus further includes:

[0436] The seventh sending module is configured to send second configuration information, the second configuration information being used to indicate one or more of the following:

[0437] a frequency domain position of the second SSB transmission;

[0438] a transmission period of the second SSB transmission;

[0439] a second index indication of the second SSB transmission, the second index indication being used to indicate an actually transmitted SSB index in a corresponding SSB pattern of the second SSB transmission.

[0440] Optionally, the first UL grant includes a secondary cell activation command.

[0441] Optionally, the secondary cell is the first cell.

[0442] It should be noted that the present embodiment is an implementation of the SSB triggering apparatus corresponding to the SSB triggering method applied to the sending side as described above, and the specific implementation can be referred to the related description in the foregoing embodiments. To avoid repetition, the present embodiment will not be described again.

[0443] As shown in Figure 10 the sending side device of the present embodiment includes a processor 500 configured to read a program in a memory 520 and perform the following processes:

[0444] receive first indication information through a transceiver 510, the first indication information being used to trigger a first SSB transmission and schedule a first downlink transmission;

[0445] or

[0446] The second indication information is transmitted by the transceiver 510, and is used for triggering the second SSB transmission and requesting the first UL grant.

[0447] The transceiver 510 is configured to receive and send data under the control of the processor 500.

[0448] In the above method, the first indication information is transmitted by the transceiver 510, and is used for triggering the first SSB transmission and scheduling the first downlink transmission. Figure 10 The bus architecture can include any number of interconnected buses and bridges, which are well known in the art, and therefore, not further described herein, with the various circuits of the processor 500, represented generally by one or more processors, and the memory 520, represented by the various circuits of the memory, linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage stabilizers, and power management circuits, which are well known in the art, and therefore, not further described herein. The bus interface provides an interface. The transceiver 510 can be a plurality of elements, i.e., including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. The user interface 530 can also be an interface that can be connected to the required device, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0449] The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 in performing operations.

[0450] Optionally, the first indication information is downlink control information (DCI).

[0451] Optionally, the first indication information includes at least one of the following:

[0452] A first bit field, the first bit field identifying that the first indication information is used for triggering the first SSB transmission and scheduling the first downlink transmission;

[0453] An index value corresponding to the first cell;

[0454] A physical cell identifier corresponding to the first cell.

[0455] Optionally, the processor 500 is configured to read a program in the memory 520, and perform the following processes:

[0456] The first SSB transmission and the first downlink transmission are received on the first cell by the transceiver 510.

[0457] Optionally, the method further includes:

[0458] The first indication information is received on a second cell by the transceiver 510.

[0459] Optionally, the processor 500 is configured to read a program in the memory 520, and perform the following process:

[0460] receiving, by the transceiver 510, the first SSB transmission in a first time unit;

[0461] wherein a first time interval exists between the first time unit and a second time unit, the second time unit being a time unit in which the first indication information is located, and the first time interval being a predefined value, or the first time interval being indicated by the first indication information.

[0462] Optionally, the processor 500 is configured to read a program in the memory 520, and perform the following process:

[0463] receiving, by the transceiver 510, the first SSB transmission in a second time interval;

[0464] wherein the second time interval is a predefined value, or the second time interval is indicated by the first indication information.

[0465] Optionally, the processor 500 is configured to read a program in the memory 520, and perform the following process:

[0466] receiving, by the transceiver 510, the first downlink transmission in a third time unit;

[0467] wherein a third time interval exists between the first time unit and the third time unit, and the third time interval is a predefined value, or the third time interval is determined by the first indication information.

[0468] Optionally, the processor 500 is configured to read a program in the memory 520, and perform the following process:

[0469] receiving, by the transceiver 510, the first downlink transmission in a fourth time unit;

[0470] wherein a fourth time interval exists between the fourth time unit and a fifth time unit, the fifth time unit being a time unit in which the receiving of the first SSB transmission ends, and the fourth time interval being a predefined value, or the fourth time interval being indicated by the first indication information.

[0471] Optionally, the first indication information comprises at least one of the following:

[0472] a frequency domain position of the first SSB transmission;

[0473] a transmission period of the first SSB transmission;

[0474] a first index indication of the first SSB transmission, the first index indication being used to indicate an actually transmitted SSB index within a SSB pattern corresponding to the first SSB transmission.

[0475] Optionally, the first SSB transmission corresponds to a first SSB burst.

[0476] Optionally, the spatial domain information of the plurality of SSB indexes in the first SSB burst is consistent, or the plurality of SSB indexes in the first SSB burst have the same quasi co-location (QCL) characteristics, or the plurality of SSB indexes in the first SSB burst correspond to the same spatial domain transmission filter.

[0477] Optionally, the spatial domain information of the SSB indexes in the first SSB index set is consistent, or the SSB indexes in the first SSB index set have the same QCL characteristics, or the SSB indexes in the first SSB index set correspond to the same spatial domain transmission filter.

[0478] Optionally, the first SSB index set is one or more SSB indexes indicated by the first index indication to be actually transmitted.

[0479] Optionally, the first indication information further comprises reference signal indication information, the reference signal indication information indicating a first channel state information reference signal (CSI-RS) transmission.

[0480] Optionally, the first downlink transmission is a first CSI-RS.

[0481] Optionally, the first downlink transmission comprises a medium access control (MAC) control element (CE) of a secondary cell activation command, or

[0482] The first downlink transmission comprises radio resource management (RRC) signaling indicating secondary cell activation.

[0483] Optionally, the secondary cell is a first cell.

[0484] Optionally, the second indication information is an uplink scheduling request (SR) or a physical random access channel (PRACH).

[0485] Optionally, the processor 500 is configured to read programs in the memory 520 and perform the following processes:

[0486] receiving, by the transceiver 510, the second SSB transmission on the first cell, and receiving the first uplink grant on the first cell.

[0487] Optionally, the processor 500 is configured to read programs in the memory 520 and perform the following processes:

[0488] transmitting, by the transceiver 510, the second indication information on the second cell.

[0489] Optionally, the processor 500 is configured to read a program in the memory 520 and perform the following process:

[0490] starting, by the transceiver 510, receiving the second SSB transmission at a sixth time unit;

[0491] wherein a fifth time interval exists between the sixth time unit and a seventh time unit, the seventh time unit is a time unit where the second indication information is located, and the fifth time interval is a predefined value, or the fifth time interval is indicated by the second indication information.

[0492] Optionally, the processor 500 is configured to read a program in the memory 520 and perform the following process:

[0493] receiving, by the transceiver 510, the second SSB transmission within a sixth time interval;

[0494] wherein the sixth time interval is a predefined value, or the sixth time interval is indicated by the second indication information.

[0495] Optionally, the processor 500 is configured to read a program in the memory 520 and perform the following process:

[0496] starting, by the transceiver 510, receiving the first uplink grant at an eighth time unit;

[0497] wherein a seventh time interval exists between the sixth time unit and the eighth time unit, and the seventh time interval is a predefined value, or the seventh time interval is determined by the second indication information.

[0498] Optionally, the processor 500 is configured to read a program in the memory 520 and perform the following process:

[0499] starting, by the transceiver 510, receiving the first uplink grant at a ninth time unit;

[0500] wherein an eighth time interval exists between the ninth time unit and a tenth time unit, the tenth time unit is a time unit where the receiving of the second SSB ends, and the eighth time interval is a predefined value, or the eighth time interval is indicated by the second indication information.

[0501] Optionally, before the transmitting of the second indication information, the processor 500 is configured to read a program in the memory 520 and perform the following process:

[0502] The first configuration information is received by the transceiver 510, and the first configuration information is used to indicate that the second indication information is associated with the first cell.

[0503] Optionally, the processor 500 is configured to read a program in the memory 520, and perform the following process:

[0504] The second configuration information is received by the transceiver 510, and the second configuration information is used to indicate one or more of the following:

[0505] A frequency domain position of the second SSB transmission;

[0506] A transmission period of the second SSB transmission;

[0507] A second index indication of the second SSB transmission, the second index indication is used to indicate a SSB index of an actually transmitted SSB in a corresponding SSB pattern of the second SSB transmission.

[0508] Optionally, the second SSB transmission corresponds to a second SSB burst.

[0509] Wherein, spatial domain information of a plurality of SSB indexes in the second SSB burst is consistent, or a plurality of SSB indexes in the second SSB burst have the same QCL characteristics, or a plurality of SSB indexes in the second SSB burst correspond to the same spatial domain transmission filter.

[0510] Optionally, spatial domain information of SSB indexes in the second SSB index set is consistent; or SSB indexes in the second SSB index set have the same QCL characteristics; or SSB indexes in the second SSB index set correspond to the same spatial domain transmission filter.

[0511] Wherein, the second SSB index set is one or more SSB indexes indicated by the second index indication for actual transmission.

[0512] Optionally, the first uplink grant includes a secondary cell activation command.

[0513] Optionally, the secondary cell is the first cell.

[0514] The receiving side device provided by the embodiments of the present application can perform the SSB triggering method embodiments as shown in the above Figure 2 The implementation principle and technical effects are similar, and details are not repeated here.

[0515] As shown in the above Figure 11 The transmitting side device of the embodiments of the present application includes: a processor 600 configured to read a program in the memory 620 and perform the following process:

[0516] transmit, by the transceiver 610, first indication information, the first indication information being used for triggering a first SSB transmission and scheduling a first downlink transmission;

[0517] Alternatively,

[0518] receive, by the transceiver 610, second indication information, the second indication information being used for triggering a second SSB transmission and requesting a first UL grant.

[0519] The transceiver 610 is configured to receive and send data under the control of the processor 600.

[0520] In the above method, the first indication information is DCI. Figure 11 The bus architecture can include any number of interconnecting buses and bridges, depending on the specific application of the processor 600 and the overall design constraints. The bus architecture can link together various circuits such as the processor 600, represented by one or more processors, and the memory 620, represented by the various circuits of the memory. The bus architecture can also link various other circuits such as peripheral devices, voltage stabilizers, and power management circuits, which are well known in the art and thus, not further described herein. The bus interface provides an interface. The transceiver 610 can be a plurality of elements, including a transmitter and a receiver, which provide a means for communicating with various other apparatuses over a transmission medium. The user interface 630 can also be an interface that can be externally or internally connected to the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like, for different user devices.

[0521] The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.

[0522] Optionally, the first indication information is DCI.

[0523] Optionally, the first indication information includes at least one of the following:

[0524] a first bit field, the first bit field identifying that the first indication information is used for indicating the first SSB transmission and / or scheduling the first downlink transmission;

[0525] an index value corresponding to the first cell;

[0526] a physical cell identity corresponding to the first cell.

[0527] Optionally, the processor 600 is configured to read programs in the memory 620 and perform the following processes:

[0528] transmit, by the transceiver 610, the first SSB transmission and the first downlink transmission on the first cell.

[0529] Optionally, the processor 600 is configured to read a program in the memory 620, and perform the following process:

[0530] transmit the first indication information on the second cell through the transceiver 610.

[0531] Optionally, the first indication information comprises at least one of:

[0532] a frequency domain position of the first SSB transmission;

[0533] a transmission periodicity of the first SSB transmission;

[0534] a first index indication of the first SSB transmission, the first index indication being used to indicate an actually transmitted SSB index within a SSB pattern corresponding to the first SSB transmission.

[0535] Optionally, the first indication information further comprises reference signal indication information, the reference signal indication information being used to indicate a first CSI-RS transmission.

[0536] Optionally, the first downlink transmission is a first CSI-RS.

[0537] Optionally, the first downlink transmission comprises a MAC CE of a secondary cell activation command; or,

[0538] the first downlink transmission comprises RRC signaling indicating secondary cell activation.

[0539] Optionally, the secondary cell is a first cell.

[0540] Optionally, the second indication information is an SR or a PRACH.

[0541] Optionally, the processor 600 is configured to read a program in the memory 620, and perform the following process:

[0542] transmit the second SSB transmission on the first cell through the transceiver 610, and transmit the first UL grant on the first cell.

[0543] Optionally, the processor 600 is configured to read a program in the memory 620, and perform the following process:

[0544] receive the second indication information on the second cell through the transceiver 610.

[0545] Optionally, before the receiving the second indication information, the method further comprises:

[0546] transmit first configuration information through the transceiver 610, the first configuration information being used to indicate that the second indication information is associated with the first cell.

[0547] Optionally, the processor 600 is configured to read a program in the memory 620, and execute the following process:

[0548] transmit, by the transceiver 610, second configuration information, the second configuration information being used to indicate one or more of the following:

[0549] a frequency domain location of the second SSB transmission;

[0550] a transmission periodicity of the second SSB transmission;

[0551] a second index indication of the second SSB transmission, the second index indication being used to indicate a SSB index of an actually transmitted SSB within a SSB pattern corresponding to the second SSB transmission.

[0552] Optionally, the first UL grant comprises a secondary cell activation command.

[0553] Optionally, the secondary cell is a first cell.

[0554] The sending side device provided by the embodiments of the present application can execute the SSB triggering method embodiments as shown in the above Figure 5 The implementation principle and technical effects of the SSB triggering method embodiments are similar, and details are not described herein again.

[0555] The embodiments of the present application further provide a computer readable storage medium, and the computer readable storage medium stores a computer program. The computer program is executed by a processor to implement various processes of the above-mentioned SSB triggering method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein again. The computer readable storage medium includes a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, etc.

[0556] The embodiments of the present application further provide a computer program / product. The computer program / product is stored in a storage medium and is executed by at least one processor to implement various processes of the above-mentioned SSB triggering method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0557] It should be noted that, in the present document, the terms "comprises / comprising" or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0558] Through the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and the necessary general hardware platform, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product in essence or in the form of a part of the prior art that makes a contribution. The computer software product is stored in a storage medium (such as a ROM / RAM, a magnetic disk, or an optical disk) and includes a plurality of instructions for causing a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) to execute the methods described in the various embodiments of the present application.

[0559] The embodiments of the present application are described above in combination with the accompanying drawings, but the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope of protection of the claims.

Claims

1. A method for triggering a synchronization signal block (SSB), characterized in that, Comprising: receiving first indication information, the first indication information being used for triggering first SSB transmission and scheduling first downlink transmission; Or, sending second indication information, the second indication information being used for triggering second SSB transmission and requesting first uplink grant UL grant.

2. The method of claim 1, wherein, The first indication information is downlink control information DCI.

3. The method according to claim 1 or 2, characterized in that, The first indication information comprises at least one of the following: A first bit field, the first bit field identifying that the first indication information is used for triggering the first SSB transmission and / or scheduling the first downlink transmission; An index value corresponding to the first cell; A physical cell identifier corresponding to the first cell.

4. The method of claim 3, wherein, The method further comprises: receiving the first SSB transmission and the first downlink transmission on the first cell.

5. The method according to claim 1 or 2, characterized in that, The receiving first indication information comprises: receiving the first indication information on a second cell.

6. The method of claim 1 or 2, wherein, The method further comprises: receiving the first SSB transmission at the beginning of a first time unit; Wherein, there is a first time interval between the first time unit and a second time unit, the second time unit being a time unit where the first indication information is located, the first time interval being a predefined value, or the first time interval being indicated by the first indication information.

7. The method according to claim 1 or 2, characterized in that, The method further comprises: receiving the first SSB transmission within a second time interval; Wherein, the second time interval is a predefined value, or the second time interval is indicated by the first indication information.

8. The method of claim 6, wherein, The method further comprises: receiving the first downlink transmission at a third time unit; Wherein, there is a third time interval between the first time unit and the third time unit, the third time interval being a predefined value, or the third time interval being determined by the first indication information.

9. The method of claim 1 or 2, wherein, The method further comprises: receiving the first downlink transmission at a fourth time unit; Wherein, there is a fourth time interval between the fourth time unit and a fifth time unit, the fifth time unit being a time unit where the first SSB transmission ends; the fourth time interval being a predefined value, or the fourth time interval being indicated by the first indication information.

10. The method of claim 1 or 2, wherein, The first indication information comprises at least one of the following: A frequency domain position of the first SSB transmission; A transmission period of the first SSB transmission; A first index indication of the first SSB transmission, the first index indication being used for indicating an actually transmitted SSB index within a SSB pattern corresponding to the first SSB transmission.

11. The method of claim 1 or 2, wherein, The first SSB transmission corresponds to a first SSB burst; Wherein, spatial domain information of multiple SSB indexes in the first SSB burst is consistent, or multiple SSB indexes in the first SSB burst have the same quasi co-location QCL characteristics, or spatial domain transmission filters corresponding to multiple SSB indexes in the first SSB burst are the same.

12. The method of claim 10, wherein, The spatial domain information of the SSB indexes in the first SSB index set is consistent; or, the SSB indexes in the first SSB index set have the same QCL characteristics; or, the SSB indexes in the first SSB index set have the same spatial domain transmission filter; The first SSB index set is one or more SSB indexes actually transmitted in the first index indication.

13. The method of claim 1 or 2, wherein, The first indication information further comprises reference signal indication information, and the reference signal indication information indicates first channel state information reference signal (CSI-RS) transmission.

14. The method of claim 13, wherein, The first downlink transmission is a first CSI-RS.

15. The method as claimed in claim 1 or 2, wherein, The first downlink transmission comprises a medium access control (MAC) control element (CE) of a secondary cell activation command; or, The first downlink transmission comprises radio resource management (RRC) signaling indicating secondary cell activation.

16. The method of claim 15, wherein, The secondary cell is a first cell.

17. The method of claim 1, wherein, The second indication information is an uplink scheduling request (SR) or a physical random access channel (PRACH).

18. The method of claim 1 or 17, wherein, The method further comprises: receiving the second SSB transmission on the first cell, and receiving the first uplink grant on the first cell.

19. The method of claim 1 or 17, wherein, The method further comprises: sending the second indication information on a second cell.

20. The method of claim 1 or 17, wherein, The method further comprises: starting to receive the second SSB transmission at a sixth time unit; wherein a fifth time interval exists between the sixth time unit and a seventh time unit, the seventh time unit is a time unit where the second indication information is located, and the fifth time interval is a predefined value or indicated by the second indication information.

21. The method of claim 1 or 17, wherein, The method further comprises: receiving the second SSB transmission within a sixth time interval; wherein the sixth time interval is a predefined value or indicated by the second indication information.

22. The method of claim 20, wherein, The method further comprises: starting to receive the first uplink grant at an eighth time unit; wherein a seventh time interval exists between the sixth time unit and the eighth time unit, and the seventh time interval is a predefined value or indicated by the second indication information.

23. The method of claim 1 or 17, wherein, The method further comprises: starting to receive the first uplink grant at a ninth time unit; wherein an eighth time interval exists between the ninth time unit and a tenth time unit, the tenth time unit is a time unit where the second SSB transmission ends, and the eighth time interval is a predefined value or indicated by the second indication information.

24. The method of claim 18, wherein, Before the second indication information is sent, the method further comprises: receiving first configuration information, the first configuration information being used to indicate that the second indication information is associated with the first cell.

25. The method of claim 1 or 17, wherein, The method further comprises: receiving second configuration information, the second configuration information being used to indicate one or more of the following: a frequency domain position of the second SSB transmission; a transmission period of the second SSB transmission; a second index indication of the second SSB transmission, the second index indication being used to indicate SSB indexes actually transmitted in a SSB pattern corresponding to the second SSB transmission.

26. The method of claim 1 or 17, wherein, The second SSB transmission corresponds to a second SSB burst. The spatial domain information of the multiple SSB indexes in the second SSB burst is consistent, or the multiple SSB indexes in the second SSB burst have the same QCL characteristics, or the multiple SSB indexes in the second SSB burst correspond to the same spatial domain transmission filter.

27. The method of claim 25, wherein, The spatial domain information of the SSB indexes in the second SSB index set is consistent; or the SSB indexes in the second SSB index set have the same QCL characteristics; or the SSB indexes of the second SSB index set correspond to the same spatial domain transmission filter. The second SSB index set is one or more SSB indexes actually transmitted in the second index indication.

28. The method of claim 1 or 17, wherein, The first uplink grant includes a secondary cell activation command.

29. The method of claim 28, wherein, The secondary cell is a first cell.

30. A SSB triggering method, comprising: The method comprises: sending first indication information, the first indication information being used for triggering first SSB transmission and scheduling first downlink transmission; or receiving second indication information, the second indication information being used for triggering second SSB transmission and being used for requesting a first UL grant.

31. The method of claim 30, wherein, The first indication information is DCI.

32. The method of claim 30 or 31, wherein, The first indication information includes at least one of the following: a first bit field, the first bit field identifying that the first indication information is used for triggering the first SSB transmission and / or scheduling the first downlink transmission; an index value corresponding to the first cell; a physical cell identifier corresponding to the first cell.

33. The method of claim 32, wherein, The method further comprises: sending the first SSB transmission and the first downlink transmission on the first cell.

34. The method of claim 30 or 31, wherein, The method further comprises: sending the first indication information on a second cell.

35. The method of claim 30 or 31, wherein, The first indication information includes at least one of the following: a frequency domain position of the first SSB transmission; a transmission period of the first SSB transmission; first index indication of the first SSB transmission, the first index indication being used for indicating an SSB index actually transmitted in a first SSB pattern corresponding to the first SSB transmission.

36. The method of claim 30 or 31, wherein, The first indication information further includes reference signal indication information, the reference signal indication information being used for indicating first CSI-RS transmission.

37. The method of claim 30 or 31, wherein, The first downlink transmission is first CSI-RS.

38. The method of claim 37, wherein, The first downlink transmission includes a MAC CE of a secondary cell activation command; or The first downlink transmission includes RRC signaling indicating secondary cell activation.

39. The method of claim 38, wherein, The secondary cell is a first cell.

40. The method of claim 30, wherein, The second indication information is SR or PRACH.

41. The method of claim 30 or 40, wherein, The method further comprises: sending the second SSB transmission on the first cell, and sending the first UL grant on the first cell.

42. The method of claim 30 or 40, wherein, The method further comprises: receiving the second indication information on a second cell.

43. The method of claim 39, wherein, Before receiving the second indication information, the method further comprises: sending first configuration information, the first configuration information being used for indicating that the second indication information is associated with the first cell.

44. The method of claim 30 or 40, wherein, The method further comprises: sending second configuration information, the second configuration information being used for indicating one or more of the following: a frequency domain position of the second SSB transmission; a transmission period of the second SSB transmission; and a first index indication of the second SSB transmission, the first index indication being used for indicating an SSB index actually transmitted in a second SSB pattern corresponding to the second SSB transmission. a second index indication of the second SSB transmission, the second index indication being used to indicate an actually transmitted SSB index within a second SSB transmission corresponding SSB pattern.

45. The method of claim 30 or 40, wherein, The first UL grant includes a secondary cell activation command.

46. The method of claim 45, wherein, The secondary cell is a first cell.

47. An SSB triggering apparatus, comprising: comprising: a first receiving module, configured to receive first indication information, the first indication information being used to trigger a first SSB transmission and to schedule a first downlink transmission; or, a first sending module, configured to send second indication information, the second indication information being used to trigger a second SSB transmission and to request a first UL grant.

48. An SSB triggering apparatus, comprising: comprising: a second sending module, configured to send first indication information, the first indication information being used to trigger a first SSB transmission and to schedule a first downlink transmission; or, a second receiving module, configured to receive second indication information, the second indication information being used to trigger a second SSB transmission and to request a first UL grant.

49. A receiving-side device, comprising: comprising a transceiver and a processor, wherein the transceiver is configured to: receive first indication information, the first indication information being used to trigger a first SSB transmission and to schedule a first downlink transmission; or, send second indication information, the second indication information being used to trigger a second SSB transmission and to request a first UL grant.

50. A transmitting device, comprising: comprising a transceiver and a processor, wherein the transceiver is configured to: send first indication information, the first indication information being used to trigger a first SSB transmission and to schedule a first downlink transmission; or, receive second indication information, the second indication information being used to trigger a second SSB transmission and to request a first UL grant.

51. A computer readable storage medium, characterized in that, The computer readable storage medium has stored thereon a computer program, and the computer program is executed by the processor to implement the steps of the SSB triggering method in any one of claims 1 to 29 or claims 30 to 46.

52. A computer program product, characterised in that, The computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement the steps of the SSB triggering method in any one of claims 1 to 29 or claims 30 to 46.

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