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

Abstract

The present disclosure relates to the technical field of wireless communications, and provides an SSB triggering method and apparatus, a related device, a storage medium, and a program product. The method comprises: 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 being used for requesting a first uplink grant (UL grant).

Description

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

[0001] Cross-reference to Related Applications

[0002] The present disclosure claims priority from Chinese Patent Application No. 202410784003.2 filed on June 18, 2024 in China, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of wireless communication, and particularly relates to a synchronization signal block (SSB) triggering method and apparatus, related device, storage medium and program product. BACKGROUND

[0004] In related technologies, in order to achieve energy saving purposes, a synchronization signal / physical broadcast channel signal 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 automatic gain control (AGC) calibration, so as to perform related data transmission. However, in related technologies, the technical solutions for triggering an SSB have many processes and are relatively complex to implement, resulting in large overhead and related additional power consumption and long latency in data transmission in an energy saving cell scenario. SUMMARY

[0005] Embodiments of the present disclosure provide an SSB triggering method and apparatus, related device, storage medium and program product to solve the problem of large overhead and related additional power consumption and long latency in data transmission in an energy saving cell scenario.

[0006] To solve the above technical problems, the present disclosure is implemented as follows:

[0007] In a first aspect, the embodiments of the present disclosure provide an SSB triggering method, comprising:

[0008] receiving first indication information, the first indication information being used for triggering first SSB transmission and scheduling first downlink transmission;

[0009] Alternatively,

[0010] sending second indication information, the second indication information being used for triggering second SSB transmission and requesting a first uplink grant (UL grant).

[0011] Optionally, the first indication information is downlink control information (DCI).

[0012] Optionally, the first indication information includes at least one of the following:

[0013] The first bit field identifies the first indication information used to trigger the first SSB transmission and / or schedule the first downlink transmission.

[0014] The index value corresponding to the first cell;

[0015] The physical cell identifier corresponding to the first cell.

[0016] Optionally, the method further includes:

[0017] Receive the first SSB transmission and the first downlink transmission on the first cell.

[0018] Optionally, receiving the first indication information includes:

[0019] The first instruction information is received on the second cell.

[0020] Optionally, the method further includes:

[0021] The first SSB transmission is received starting in the first time unit;

[0022] Wherein, there is a first time interval between the first time unit and the second time unit, the second time unit is the time unit where the first indication information is located, the first time interval is a predefined value, or the first time interval is indicated by the first indication information.

[0023] Optionally, the method further includes:

[0024] Receive the first SSB transmission during the second time interval;

[0025] Wherein, the second time interval is a predefined value, or the second time interval is indicated by the first indication information.

[0026] Optionally, the method further includes:

[0027] The first downlink transmission is received in the third time unit;

[0028] There is a third time interval between the first time unit and the third time unit. The third time interval is a predefined value, or the third time interval is determined by the first indication information.

[0029] Optionally, the method further includes:

[0030] The first downlink transmission is received in the fourth time unit;

[0031] There is a fourth time interval between the fourth time unit and the 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.

[0032] Optionally, the first indication information includes at least one of the following:

[0033] The frequency domain location of the first SSB transmission;

[0034] The transmission period of the first SSB transmission;

[0035] The first index indication of the first SSB transmission is used to indicate the actual SSB index transmitted within the SSB pattern corresponding to the first SSB transmission.

[0036] Optionally, the first SSB transmission corresponds to the first SSB set burst;

[0037] Specifically, the spatial information of multiple SSB indices in the first SSB burst is consistent, or the multiple SSB indices in the first SSB burst have the same quasi-co-address QCL characteristics, or the spatial transmission filters corresponding to the multiple SSB indices in the first SSB burst are the same.

[0038] Optionally, the spatial information of the SSB indices in the first SSB index set is consistent; or, the SSB indices in the first SSB index set have the same QCL characteristics; or, the spatial transfer filters corresponding to the SSB indices in the first SSB index set are the same.

[0039] The first SSB index set is one or more SSB indices that indicate the actual transmission in the first index indication.

[0040] Optionally, the first indication information further includes reference signal indication information, which indicates the transmission of a first channel state information reference signal (CSI-RS).

[0041] Optionally, the first downlink transmission is a first CSI-RS.

[0042] Optionally, the first downlink transmission includes a Media Access Control (MAC) CE for a secondary cell activation command; or,

[0043] The first downlink transmission includes Radio Resource Control (RRC) signaling indicating secondary cell activation.

[0044] Optionally, the secondary cell is the first cell.

[0045] Optionally, the second indication information is an uplink scheduling request (SR) or a physical random access channel (PRACH).

[0046] Optionally, the method further includes:

[0047] Receive the second SSB transmission on the first cell, and receive the first uplink grant on the first cell.

[0048] Optionally, the method further includes:

[0049] The second instruction information is sent on the second cell.

[0050] Optionally, the method further includes:

[0051] The second SSB transmission is received starting in the sixth time unit;

[0052] There is a fifth time interval between the sixth time unit and the seventh time unit. The seventh time unit is the time unit where the second indication information is located. The fifth time interval is a predefined value, or the fifth time interval is indicated by the second indication information.

[0053] Optionally, the method further includes:

[0054] Receive the second SSB transmission during the sixth time interval;

[0055] The sixth time interval is a predefined value, or the sixth time interval is indicated by the second indication information.

[0056] Optionally, the method further includes:

[0057] The first uplink grant will be received starting in the eighth time unit;

[0058] There is a seventh time interval between the sixth time unit and the eighth time unit. The seventh time interval is a predefined value, or the seventh time interval is determined by the second indication information.

[0059] Optionally, the method further includes:

[0060] The first uplink grant will be received starting in the ninth time unit;

[0061] There is an eighth time interval between the ninth time unit and the tenth time unit. The tenth time unit is the time unit for ending the reception of the second SSB. The eighth time interval is a predefined value, or the eighth time interval is indicated by the second indication information.

[0062] Optionally, before sending the second indication information, the method further includes:

[0063] Receive first configuration information, which is used to indicate that the second indication information is associated with the first cell.

[0064] Optionally, the method further includes:

[0065] Receive second configuration information, which indicates one or more of the following:

[0066] The frequency domain location of the second SSB transmission;

[0067] The transmission period of the second SSB transmission;

[0068] The second index indication of the second SSB transmission is used to indicate the SSB index actually transmitted within the SSB pattern corresponding to the second SSB transmission.

[0069] Optionally, the second SSB transmission corresponds to the second SSB burst;

[0070] Specifically, the spatial information of multiple SSB indices in the second SSB burst is consistent, or the multiple SSB indices in the second SSB burst have the same QCL characteristics, or the spatial transmission filters corresponding to the multiple SSB indices in the second SSB burst are the same.

[0071] Optionally, the spatial domain information of the SSB indices in the second SSB index set is consistent; or, the SSB indices in the second SSB index set have the same QCL characteristics; or, the spatial domain transfer filters corresponding to the SSB indices in the second SSB index set are the same.

[0072] The second SSB index set is one or more SSB indices in the second index indication that indicate the actual transmission.

[0073] Optionally, the first uplink authorization includes a secondary cell activation command.

[0074] Optionally, the secondary cell is the first cell.

[0075] Secondly, this disclosure also provides an SSB triggering method, applied to a network-side device, the method comprising:

[0076] Send a first indication message, which is used to trigger a first SSB transmission and schedule a first downlink transmission;

[0077] or,

[0078] Receive a second indication message, which is used to trigger a second SSB transmission and to request a first UL grant.

[0079] Optionally, the first indication information is DCI.

[0080] Optionally, the first indication information includes at least one of the following:

[0081] The first bit field identifies the first indication information used to trigger the first SSB transmission and / or schedule the first downlink transmission.

[0082] The index value corresponding to the first cell;

[0083] The physical cell identifier corresponding to the first cell.

[0084] Optionally, the method further includes:

[0085] The first SSB transmission and the first downlink transmission are transmitted on the first cell.

[0086] Optionally, the method further includes: sending the first indication information on the second cell.

[0087] Optionally, the first indication information includes at least one of the following:

[0088] The frequency domain location of the first SSB transmission;

[0089] The transmission period of the first SSB transmission;

[0090] The first index indication of the first SSB transmission is used to indicate the actual SSB index transmitted within the SSB pattern corresponding to the first SSB transmission.

[0091] Optionally, the first indication information may further include reference signal indication information, which is used to indicate the first CSI-RS transmission.

[0092] Optionally, the first downlink transmission is a first CSI-RS.

[0093] Optionally, the first downlink transmission includes a MAC CE for a secondary cell activation command; or,

[0094] The first downlink transmission includes RRC signaling indicating secondary cell activation.

[0095] Optionally, the secondary cell is the first cell.

[0096] Optionally, the second indication information is SR or PRACH.

[0097] Optionally, the method further includes:

[0098] The second SSB transmission is sent on the first cell, and the first UL grant is sent on the first cell.

[0099] Optionally, the method further includes:

[0100] The second instruction information is received on the second cell.

[0101] Optionally, before receiving the second indication information, the method further includes:

[0102] Send first configuration information, which is used to indicate that the second indication information is associated with the first cell.

[0103] Optionally, the method further includes:

[0104] Send second configuration information, which indicates one or more of the following:

[0105] The frequency domain location of the second SSB transmission;

[0106] The transmission period of the second SSB transmission;

[0107] The second index indication of the second SSB transmission is used to indicate the SSB index actually transmitted within the SSB pattern corresponding to the second SSB transmission.

[0108] Optionally, the first UL grant includes a secondary cell activation command.

[0109] Optionally, the secondary cell is the first cell.

[0110] Thirdly, this disclosure also provides an SSB triggering device, the device comprising:

[0111] The first receiving module is configured to receive first indication information, which is used to trigger the first SSB transmission and schedule the first downlink transmission.

[0112] or,

[0113] A first sending module is used to send second indication information, which is used to trigger a second SSB transmission and to request a first UL grant.

[0114] Fourthly, embodiments of this disclosure provide an SSB triggering device, the device comprising:

[0115] The second sending module is used to send first indication information, which is used to trigger the first SSB transmission and schedule the first downlink transmission.

[0116] or,

[0117] The second receiving module is used to receive second indication information, which is used to trigger a second SSB transmission and to request a first UL grant.

[0118] Fifthly, embodiments of this disclosure also provide a receiving-side device, including a transceiver and a processor, wherein the transceiver is used for:

[0119] Receive first indication information, which is used to trigger a first SSB transmission and schedule a first downlink transmission;

[0120] or,

[0121] Send a second instruction message, which is used to trigger a second SSB transmission and to request a first UL grant.

[0122] Sixthly, embodiments of this disclosure also provide a transmitting-side device, including a transceiver and a processor, wherein the transceiver is used for:

[0123] Send a first indication message, which is used to trigger a first SSB transmission and schedule a first downlink transmission;

[0124] or,

[0125] Receive a second indication message, which is used to trigger a second SSB transmission and to request a first UL grant.

[0126] In a seventh aspect, embodiments of this disclosure provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the SSB triggering method as described in any one of the first aspects above; or, when executed by a processor, the computer program implements the steps of the SSB triggering method as described in any one of the second aspects above.

[0127] Eighthly, embodiments of this disclosure also provide a computer program product stored in a storage medium, the computer program product being executed by at least one processor to implement the steps of the SSB triggering method as described in any of the first aspects above; or, the computer program being executed by a processor to implement the steps of the SSB triggering method as described in any of the second aspects above.

[0128] In this embodiment, the first SSB transmission and the first downlink transmission can be triggered by the terminal receiving first indication information sent by the network-side device. Alternatively, the terminal can trigger a second SSB transmission based on the second indication information by sending a second indication information to the network-side device, and use this second indication information to request uplink authorization. In this way, the terminal and the network-side device can achieve SSB activation triggering and data transmission based on either the first or second indication information, reducing overhead, simplifying the process, and improving network energy efficiency. Attached Figure Description

[0129] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0130] Figure 1 is a schematic diagram of the on-demand triggering SCell SSB mechanism in related technologies;

[0131] Figure 2 is a flowchart illustrating one of the SSB triggering methods provided in this embodiment of the present disclosure;

[0132] Figure 3 is one of the schematic diagrams of the SSB triggering mechanism in the embodiments of this disclosure;

[0133] Figure 4 is a second schematic diagram of the SSB triggering mechanism in an embodiment of this disclosure;

[0134] Figure 5 is a second schematic flowchart of an SSB triggering method provided in an embodiment of this disclosure;

[0135] Figure 6 is a schematic diagram of one of the SSB triggering devices provided in an embodiment of this disclosure;

[0136] Figure 7 is a second schematic diagram of an SSB triggering device provided in an embodiment of this disclosure;

[0137] Figure 8 is a third schematic diagram of an SSB triggering device provided in an embodiment of this disclosure;

[0138] Figure 9 is a fourth schematic diagram of an SSB triggering device provided in an embodiment of this disclosure;

[0139] Figure 10 is a schematic diagram of the structure of a receiving-side device provided in an embodiment of this disclosure;

[0140] Figure 11 is a schematic diagram of the structure of a transmitting-side device provided in an embodiment of this disclosure. Detailed Implementation

[0141] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0142] To make the embodiments of this disclosure clearer, the relevant technical knowledge involved in the embodiments of this disclosure will be introduced as follows:

[0143] In current 5G New Radio (NR) technology, terminals or terminal devices primarily rely on Service Shield (SSB) for basic time / frequency / spatial synchronization, Automatic Gain Control (AGC), and beam selection functions. Specifically, the terminal device obtains the SSB configuration based on the following steps:

[0144] 1) Based on the configured SSB period and the actual transmitted SSB index, determine the complete SSB transmission configuration. Specifically, the fields of the transmission configuration are: SSB period (ssb-periodicityservingcell) (in ms) and the actual transmitted SSB beam (ssb-positioninburst) (indicated by a bitmap).

[0145] 2) Based on the synchronization grid scan, the transmission frequency of the SSB is obtained, and then the subcarrier spacing of the SSB is determined according to the preset information. Alternatively, the transmission frequency and subcarrier spacing of the SSB can be obtained based on the indication information. Specifically, as shown in Table 1, the frequency domain position of the synchronization grid is defined in Table 5.4.3.1-1 of TS 38.104 of the 3rd Generation Partnership Project (3GPP).

[0146] Table 1. Global Synchronization Channel Number (GSCN) Parameters for the Global Frequency Raster with Channel Bandwidth Above 3MHz

[0147] To shorten cell search time, NR defines a synchronization raster to indicate the possible frequency locations of SSBs. Table 1 above shows the location of the SSB center frequency (the starting frequency of the tenth Physical Resource Block (PRB) nPRB=10, Resource element (RE)=0) and the GSCN range.

[0148] The subcarrier spacing of the SSB is related to the operating band to which the synchronization grid belongs, as specifically defined in 3GPP TS 38.104.

[0149] Simultaneously, based on system information, the network can also directly indicate the absolute frequency location of the SSB, allowing terminal devices to search for the SSB based on this location. Specifically, `ssbfrequency` indicates the frequency at which the SSB is located, and `ssbsubcarrierspacing` indicates the subcarrier spacing of the SSB. Through this indication, terminal devices can also obtain the frequency and bandwidth information of the SSB.

[0150] 3) Based on the preset transmission pattern of the spectrum and the half-frame bits indicated in the Master Information Block (MIB), determine the specific time slot and Orthogonal Frequency Division Multiplexing (OFDM) symbols where the SSB is located. The preset transmission pattern indicates which OFDM symbols in the half-frame the SSB will transmit on. The preset transmission patterns for different frequencies are related to the operating band and subcarrier spacing, as defined in 3GPP TS 38.213.

[0151] For example, in one scenario, for frequencies less than 3 GHz, a burst of SSBs contains a maximum of four SSB beams, which are transmitted with the 2nd, 8th, 16th, and 22nd OFDM symbols in a half-frame as the starting OFDM symbols, respectively.

[0152] For example, for frequencies greater than 3 GHz and less than 6 GHz, an SSB burst has a maximum of 8 SSB beams, which are transmitted with the 2nd, 8th, 16th, 22nd, 30th, 36th, 44th and 50th OFDM symbols in a half-frame as the starting OFDM symbols.

[0153] Meanwhile, the MIB within the SSB also includes half-frame bits (carried in the Physical Broadcast Channel (PBCH) payload) used to indicate the specific half-frame within a frame in which the SSB beam is located.

[0154] In related technologies, to achieve energy saving, a mechanism of on-demand triggering of the Secondary Cell (SCell) SSB is commonly used. As shown in Figure 1, in an NES cell scenario, SSBs are typically not transmitted. When a terminal device requires it, it can send a trigger signal to cause the network-side device to transmit an SSB in the SCell. In scenarios where the SCell is already activated, the terminal device may need to trigger the SSB to complete the Automatic Gain Control (AGC) function, thereby completing the relevant data or signal transmission. This is generally done in the following way:

[0155] 1. The terminal device / network-side device sends a signaling message to trigger the SSB;

[0156] 2. The network-side device sends an SSB;

[0157] 3. Terminal measurement of SSB;

[0158] 4. Uplink / downlink transmission process in related technologies (e.g., network devices send downlink control information (DCI) to schedule the physical downlink shared channel (PDSCH)).

[0159] As can be seen, the mechanisms for triggering SSB in related technologies are usually complex and involve numerous steps. In energy-saving community scenarios, data transmission incurs significant overhead / related additional power consumption and time delays. Therefore, the SSB triggering method, apparatus, related devices, storage media, and program products proposed in this disclosure can solve the problem of numerous and complex data transmission steps in energy-saving community scenarios.

[0160] The SSB triggering method, apparatus, related devices, storage media, and program products provided in this disclosure will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0161] Please refer to Figure 2. This embodiment of the disclosure provides an SSB triggering method, which includes the following steps:

[0162] Step 101: Receive first indication information, which is used to trigger the first SSB transmission and schedule the first downlink transmission;

[0163] Alternatively, a second instruction message may be sent, which is used to trigger a second SSB transmission and to request a first UL grant.

[0164] It should be understood that the technologies described in this disclosure are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but 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" in this disclosure are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th Generation (6G) communication systems.

[0165] Furthermore, the embodiments of this disclosure 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 disclosed herein.

[0166] In some embodiments of this disclosure, when a receiving device such as a terminal has a data transmission service requirement, as shown in Figure 3, the sending device can send a first indication message to the receiving device such as the terminal, and the receiving device can receive the first indication message. At this time, the first indication message can serve as a downlink signaling to trigger the first SSB transmission, thereby activating the SSB. It is worth noting that the first indication message triggering the first SSB transmission can also be understood as the first indication message requesting / indicating / enabling the first SSB transmission. That is, the first indication message in the embodiments of this disclosure can achieve any one or more of the functions of triggering, requesting, indicating, and enabling the first SSB transmission. Alternatively, the first indication message triggering the first SSB transmission can also be understood as the first indication message instructing the first SSB transmission to start / enable / activate. That is, the first indication message in the embodiments of this disclosure can instruct the first SSB transmission to start, enable, and activate any one or more of the functions.

[0167] It is understood that receiving the first indication information can also be described as monitoring or detecting the first indication information. This disclosure does not limit this.

[0168] 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., and can be used to realize functions such as data transmission, data demodulation, and broadcasting system information. This disclosure does not impose specific limitations on the content of the first downlink transmission.

[0169] It is understood that scheduling the first downlink transmission can also be described as indicating the first downlink transmission or associating the first downlink transmission. This disclosure does not limit this.

[0170] In some embodiments of this disclosure, as shown in FIG4, receiving devices such as terminals can also actively send second indication information to sending devices according to their data transmission service requirements. Therefore, the second indication information can be uplink signaling, which triggers the second SSB transmission, thereby activating the SSB in the communication system. In this embodiment, the second indication information can be used as an uplink signaling to trigger the second SSB transmission. It is worth noting that the second indication information triggering the second SSB transmission can also be understood as the second indication information requesting / indicating / enabling the second SSB transmission. That is, the second indication information in the embodiments of this disclosure can achieve any one or more of the functions of triggering, requesting, indicating, and enabling the second SSB transmission. Alternatively, the second indication information triggering the second SSB transmission can also be understood as the second indication information instructing the second SSB transmission to start / enable / activate. That is, the second indication information in the embodiments of this disclosure can instruct the second SSB transmission to start, enable, and activate any one or more of the functions.

[0171] It is understood that sending a second instruction message can also be described as triggering or initiating a second instruction message. This disclosure does not limit this.

[0172] Additionally, the second indication information can also be used to request a first uplink (UL) grant. The first uplink grant may specifically include a secondary cell activation command, or scheduling information (e.g., PDCCH or DCI) instructing receiving devices such as terminals to transmit data at appropriate times and how to transmit data; frequency resource allocation instructing receiving devices such as terminals to transmit data in frequency bands or frequency resources; power control commands instructing receiving devices such as terminals to adjust power levels when transmitting data; and transmission formats instructing receiving devices such as terminals to encode and modulate data for data transmission. This disclosure does not limit the specific content of the first uplink grant and can be set according to the actual application scenario. Alternatively, the first uplink grant may also refer to uplink shared channel resource (UL-SCH resource).

[0173] It is understood that requesting the first uplink authorization can also be described as triggering or initiating the first uplink authorization. This disclosure does not limit this.

[0174] Thus, in the above embodiments of this disclosure, receiving devices such as terminals and transmitting devices can schedule data transmission while triggering SSB transmission based on the first indication information or the second indication information, thereby reducing network communication overhead, simplifying the data transmission process, and improving network energy saving gains.

[0175] Optionally, the first indication information is downlink control information (DCI).

[0176] In some embodiments, the first indication information may specifically be downlink control information (DCI), or other downlink signaling used to instruct receiving devices such as terminals to receive the first SSB and downlink data.

[0177] Optionally, the first indication information includes at least one of the following:

[0178] The first bit field identifies the first indication information used to trigger the first SSB transmission and / or schedule the first downlink transmission.

[0179] The index value corresponding to the first cell;

[0180] The physical cell identifier corresponding to the first cell.

[0181] In some embodiments, when the first indication information is DCI, the first indication information may specifically include one or more of the following: a first bit field, an index value corresponding to the first cell, and a physical cell identifier corresponding to the first cell. The first bit field may be a bit field entirely set to 0 / 1, which can be used to indicate the triggering of the first SSB transmission when the receiving device, such as the terminal, has a service transmission requirement, and / or to schedule the first downlink transmission.

[0182] In addition, the first indication information may also include an index value corresponding to the first cell or a physical cell identity (PCI) corresponding to the first cell. This embodiment of the present disclosure can be applied to scenarios where receiving devices such as terminals have service transmission needs after the secondary cell is activated. Since the first indication information needs to be sent to the receiving devices such as terminals via the secondary cell, it is necessary to determine the specific secondary cell. Therefore, the first cell can be a secondary cell, and the first indication information can carry an index value corresponding to the first cell and / or a physical cell identity corresponding to the first cell, so as to accurately locate the first cell and send the first indication information to the receiving devices such as terminals via the first cell.

[0183] Optionally, the method further includes:

[0184] Receive the first SSB transmission and the first downlink transmission on the first cell.

[0185] As described in the above embodiments, the application scenario of this disclosure embodiment can be a scenario after the secondary cell is activated. Therefore, the first cell can be a secondary cell in the network where the transmitting side device and the receiving side device are located, and the receiving side device such as the terminal can receive the first SSB transmission and the first downlink transmission on the first cell.

[0186] Optionally, receiving the first indication information includes:

[0187] The first instruction information is received on the second cell.

[0188] In some embodiments, the receiving device such as the terminal can receive the first indication information in either the primary cell (Pcell) or the primary secondary cell (PScell). Therefore, the second cell can be either a Pcell or a PScell.

[0189] Optionally, the method further includes:

[0190] The first SSB transmission is received starting in the first time unit;

[0191] Wherein, there is a first time interval between the first time unit and the second time unit, the second time unit is the time unit where the first indication information is located, the first time interval is a predefined value, or the first time interval is indicated by the first indication information.

[0192] In some embodiments, the second time unit in which the receiving device, such as the terminal, receives the first indication information may be earlier than the first time unit in which the first SSB transmission is received. Therefore, there will be a first time interval between the second time unit and the first time unit. By setting the first time interval, the receiving device, such as the terminal, can be aligned with the sending network device regarding the start time of the first SSB transmission. At the same time, it enables the terminal device to be prepared to receive the first SSB transmission after receiving the first indication information, including being able to fully receive information such as signal parameters, thereby improving the quality and stability of signal reception, reducing overall communication latency, and improving communication efficiency.

[0193] It should be noted that each time unit in the embodiments of this disclosure can be an Orthogonal Frequency Division Multiplexing (OFDM) symbol, one or more time slots, or one or more frames. Furthermore, the time unit of the time unit can also be milliseconds, seconds, etc. Thus, since there is a first time interval between the first time unit and the second time unit, the time interval can be X OFDM symbols (X represents a number greater than or equal to 1), or it can represent X time slots, X frames, X milliseconds (ms), X seconds (s), etc., and this disclosure does not specifically limit this. The units of measurement for the time unit and the time interval can be the same or different. The units of measurement for the first time unit and the second time unit can be the same or different.

[0194] It is worth mentioning that the aforementioned first time interval can be a predefined value, that is, it can be an interval predetermined in the communication protocol, or it can be preset before the implementation of the embodiments of this disclosure. Alternatively, the first time interval can also be indicated by the first indication information, which can carry information about the first time interval, instructing the base station and other transmitting side devices to follow the first time interval when transmitting the first indication information and the first SSB transmission in sequence.

[0195] Optionally, the method further includes:

[0196] Receive the first SSB transmission during the second time interval;

[0197] Wherein, the second time interval is a predefined value, or the second time interval is indicated by the first indication information.

[0198] In some other embodiments, the first SSB transmission is received within the second time interval. That is, the first SSB transmission can be transmitted within a fixed time interval or time slot interval. The entire stage from the sending device to the receiving device such as the terminal receiving the first SSB transmission should be set within the second time interval. This can enable the receiving device such as the terminal and the sending device on the network side to align the duration of the first SSB transmission, thereby ensuring the quality and stability of information reception and reducing the overall communication latency.

[0199] Similarly, the second time interval can also be a predefined value, that is, it can be an interval predetermined in the communication protocol, or it can be preset before the implementation of the embodiments of this disclosure. Alternatively, the second time interval can also be indicated by the first indication information, which can carry the information of the second time interval, indicating that the base station and other transmitting devices must follow the second time interval when transmitting the first indication information and the first SSB transmission in sequence.

[0200] Optionally, the method further includes:

[0201] The first downlink transmission is received in the third time unit;

[0202] There is a third time interval between the first time unit and the third time unit. The third time interval is a predefined value, or the third time interval is determined by the first indication information.

[0203] In another embodiment, the receiving device or receiving-side device may receive the first downlink transmission in a third time unit, and a third time interval may exist between the first time unit and the third time unit. Specifically, the receiving-side device, such as the terminal, receives the first indication information in the first time unit, and then, after a third time interval, receives the first downlink transmission in the third time unit. This allows the receiving-side device and the transmitting-side device to align their start times for the first downlink transmission; simultaneously, the third time interval allows the receiving-side device and the transmitting-side device to adjust their receiving or transmitting states to adapt to different communication needs and flexibly adjust according to actual conditions, thereby achieving communication.

[0204] Optionally, the method further includes:

[0205] The first downlink transmission is received in the fourth time unit;

[0206] There is a fourth time interval between the fourth time unit and the 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.

[0207] In another specific embodiment of this disclosure, a receiving device such as a terminal or a receiving end device can receive the first downlink transmission in a fourth time unit. Before receiving the first downlink transmission, an SSB trigger can be performed. Specifically, the transmitting device can send a first indication message to the receiving device, and then, after a first time interval, the transmitting device sends the first SSB transmission to the receiving device. The transmitting device can send the first downlink transmission to the receiving device again after the first SSB transmission ends and after a fourth time interval, and the receiving device can end the first downlink transmission in the fourth time unit. Thus, the fifth time unit in which the receiving device ends receiving the first SSB transmission and the fourth time unit in which the receiving device receives the first downlink transmission can be separated by a fourth time interval. This allows the receiving device (such as the terminal) and the network-side transmitting device to align the start time of the first downlink transmission; simultaneously, it ensures that data transmission only begins after the SSB trigger is completed, meeting communication requirements and improving communication stability.

[0208] Optionally, the first indication information includes at least one of the following:

[0209] The frequency domain location of the first SSB transmission;

[0210] The transmission period of the first SSB transmission;

[0211] The first index indication of the first SSB transmission is used to indicate the actual SSB index transmitted within the SSB pattern corresponding to the first SSB transmission.

[0212] In some embodiments, the first indication information may include the frequency domain location, transmission period, and first index indication corresponding to the first SSB transmission. By configuring these specific parameters, the terminal device can quickly detect the first SSB transmission, improving transmission efficiency.

[0213] It is worth mentioning that the first index indication in the aforementioned first indication information can indicate the actual transmitted SSB index within the SSB pattern corresponding to the first SSB transmission. At this time, the receiving side or receiving end (e.g., the terminal) can accurately identify and demodulate the transmitted signal, ensuring correct data reception. In addition, the first index indication can also indicate that the terminal device does not need to detect the SSB at the SSB index that has not been actually transmitted, reducing the detection overhead of the terminal device and lowering its power consumption.

[0214] Optionally, the first SSB transmission corresponds to the first SSB set burst;

[0215] Specifically, the spatial information of multiple SSB indices in the first SSB burst is consistent, or the multiple SSB indices in the first SSB burst have the same quasi-co-address QCL characteristics, or the spatial transmission filters corresponding to the multiple SSB indices in the first SSB burst are the same.

[0216] In some embodiments, the first SSB transmission may correspond to a first SSB burst, which may consist of one or more SSB indices. In this case, the spatial information of each SSB index in the first SSB burst is consistent, or each SSB index in the first SSB burst has the same quasi-co-address QCL characteristics, or each SSB index in the first SSB burst corresponds to the same spatial transmission filter. Thus, the terminal device can complete synchronization and Automatic Gain Control (AGC) calibration based on fewer SSB indices, improving transmission efficiency; simultaneously, the network device can also send fewer SSB indices, thereby reducing the power consumption of the network device when sending SSBs.

[0217] In some embodiments, the first SSB burst can consist of multiple SSB index sets, and each index set in the first SSB burst can include one or more SSB indices. Thus, multiple SSB indices are combined into an index set, and then these index sets are combined again to form the first SSB burst. In this case, the spatial information of each SSB index within the same SSB index set is consistent, or each SSB index within the same SSB index set has the same quasi-co-addressable QCL characteristics, or the spatial transmission filter corresponding to each SSB index within the same SSB index set is the same. This allows the terminal device to complete synchronization and AGC calibration based on fewer SSB bursts, improving transmission efficiency; simultaneously, the network device can send fewer SSB bursts, thereby reducing the power consumption of the network device when sending SSBs.

[0218] In some embodiments, as described above, the receiver can process these signals based on consistent spatial information, QCL characteristics, or by using the same receiver filter structure, thereby simplifying the receiver design, saving network system resources, reducing redundant processing and calculations, and improving resource utilization.

[0219] Furthermore, in the above embodiments, the same quasi-co-located (QCL) feature, i.e., the quasi-co-located (QCL) configuration of any one of the multiple SSB indices, still applies to the other SSB indices. In another embodiment, the SSB indices corresponding to each set of multiple SSB indexes can have the same Transmission Configuration Indication (TCL) configuration.

[0220] Optionally, the spatial information of the SSB indices in the first SSB index set is consistent; or, the SSB indices in the first SSB index set have the same QCL characteristics; or, the spatial transfer filters corresponding to the SSB indices in the first SSB index set are the same.

[0221] The first SSB index set is one or more SSB indices that indicate the actual transmission in the first index indication.

[0222] In some embodiments, the first index indication indicating one or more SSB indices actually transmitted can form a first SSB index set. This first SSB index set may include one or more SSB indices. In this case, the spatial 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 quasi-co-address QCL characteristics, or each SSB index in the first SSB index set corresponds to the same spatial transmission filter. Thus, the terminal device can complete synchronization and AGC calibration based on fewer SSB indices, improving transmission efficiency; simultaneously, the network device can also send fewer SSB indices, thereby reducing the power consumption of the network device when sending SSBs.

[0223] In some embodiments, the first SSB index set may also include multiple SSB index sets, and each index set may contain multiple SSB indices. In this case, all SSB indices within the same SSB index set in the first SSB index set may have the same spatial information, or all SSB indices within the same SSB index set in the first SSB index set may have the same QCL characteristics or the same corresponding spatial receiving filter. This allows the terminal device to complete synchronization and AGC calibration with fewer SSB bursts, improving transmission efficiency; simultaneously, the network device can send fewer SSB bursts, thereby reducing the power consumption of the network device when sending SSBs.

[0224] Optionally, the first indication information further includes reference signal indication information, which indicates the transmission of a first channel state information reference signal (CSI-RS).

[0225] In some embodiments, the first indication information may also carry reference signal indication information, which indicates the transmission of the first CSI-RS. Since CSI-RS is typically used by the receiver to estimate the channel state and perform signal demodulation and decoding, the transmission of the first CSI-RS indicated by the reference signal indication information allows the receiver to accurately obtain channel state information and feed the estimation results back to the transmitter, further improving transmission accuracy and efficiency. Additionally, the transmitter can perform adaptive modulation and coding based on the receiver's channel state information to improve signal reliability and transmission efficiency.

[0226] Optionally, the first downlink transmission is a first CSI-RS.

[0227] In another embodiment, the first downlink transmission can be designed as a first CSI-RS, which can effectively utilize channel state information for signal processing and optimization, improve system performance and efficiency, achieve reliable communication connection, optimize wireless communication, and provide a better user experience.

[0228] Optionally, the first downlink transmission includes a Media Access Control (MAC) CE for a secondary cell activation command; or,

[0229] The first downlink transmission includes Radio Resource Control (RRC) signaling indicating secondary cell activation.

[0230] In yet another specific embodiment of this disclosure, the first downlink transmission may include a Media Access Control Control Element (MAC CE) for a secondary cell activation command or Radio Resource Control (RRC) signaling indicating secondary cell activation. When the first downlink transmission includes a MAC CE for a secondary cell activation command, meaning the MAC layer in the network has relevant control information to indicate the activation status of the secondary cell, the MAC CE allows the receiving end to quickly identify and process the activation information of the secondary cell, thereby accelerating the activation process and improving network response speed and efficiency. Furthermore, when the first downlink transmission includes RRC signaling indicating secondary cell activation, meaning the RRC layer has relevant signaling to indicate the activation status of the secondary cell, RRC ensures that all devices in the network can promptly obtain the cell's activation status, thereby coordinating communication between devices, optimizing resource allocation and management, and improving the overall performance and efficiency of the system.

[0231] Optionally, the secondary cell is the first cell.

[0232] Specifically, in the above embodiments, the receiving side can receive the first SSB transmission and the first downlink transmission on the first cell, that is, the first cell can be a SCell at this time. In another embodiment, when the first downlink transmission includes MAC CE or RRC, either MAC CE or 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.

[0233] Optionally, the second indication information is an uplink scheduling request (SR) or a physical random access channel (PRACH).

[0234] In specific embodiments of this disclosure, the second indication information can be an uplink scheduling request (SR). The SR allows receiving devices such as terminals to request uplink resources to send data. Sending this SR indicates that the receiving devices are requesting uplink resources and simultaneously triggers the transmission of the second SSB. Thus, triggering the second SSB transmission via the SR ensures that receiving devices such as terminals can acquire uplink resources in a timely manner, improving data transmission efficiency and real-time performance.

[0235] In another embodiment, the second indication information can also be a Physical Random Access Channel (PRACH), serving as a channel for a device to access the network. In this case, sending the PRACH indicates that the receiving device, such as the terminal, is requesting uplink resources, and triggers the second SSB transmission. This ensures that the receiving device, such as the terminal, can acquire uplink resources in a timely manner, improving data transmission efficiency and real-time performance.

[0236] Optionally, the method further includes:

[0237] Receive the second SSB transmission on the first cell, and receive the first uplink grant on the first cell.

[0238] In some embodiments, the receiving device can proactively send a second indication message to the sending side, requesting the triggering of an SSB between the sending and receiving sides. The receiving side can then receive a second SSB transmission and a first uplink grant. Specifically, in this embodiment, the process of the receiving side receiving the second SSB transmission and the first uplink grant can both be transmitted on the first cell. The first cell in this embodiment can be a cell shared by both the receiving and sending devices. Here, data transmission and resource scheduling between the receiving and sending sides are achieved through the first cell, improving communication efficiency.

[0239] Optionally, the method further includes:

[0240] The second instruction information is sent on the second cell.

[0241] In another specific embodiment of this disclosure, a receiving device such as a terminal can send second indication information to a sending device such as a sending device on the second cell, and the receiving device actively sends the second indication information to the sending device. In this case, the second cell can be either a P-cell or a PS-cell, and can be determined according to actual data transmission requirements; this disclosure does not impose any restrictions on this.

[0242] Optionally, the method further includes:

[0243] The second SSB transmission is received starting in the sixth time unit;

[0244] There is a fifth time interval between the sixth time unit and the seventh time unit. The seventh time unit is the time unit where the second indication information is located. The fifth time interval is a predefined value, or the fifth time interval is indicated by the second indication information.

[0245] In some embodiments, receiving devices such as terminals can begin receiving the second SSB transmission in the sixth time unit and send the second indication information to sending devices such as sending devices in the seventh time unit. Since there is a fifth time interval between the sixth and seventh time units, there is a time difference between the receiving side sending the second indication information and receiving the second SSB transmission. Specifically, the receiving side can first send the second indication information to the sending side, and after the fifth time interval, the receiving side will then begin receiving the second SSB transmission sent by the sending side. In this way, by setting the fifth time interval, the starting time of the first SSB transmission can be aligned between the receiving devices such as terminals and the sending network devices. Simultaneously, it allows preparation time for the terminal device during the process of sending the second indication information and receiving the second SSB transmission, enabling the receiving devices such as terminals to fully receive signal parameters and other information when receiving the second SSB transmission, thereby improving the quality and stability of signal reception, reducing overall communication latency, and improving communication efficiency.

[0246] It should be noted that the sixth and seventh time units in the above embodiments can both be Orthogonal Frequency Division Multiplexing (OFDM) symbols, or one or more time slots, or one or more frames. Furthermore, the time unit of the time unit can also be milliseconds, seconds, etc. Thus, since the sixth and seventh time units differ by a fifth time interval, the time interval can be X OFDM symbols (X represents a number greater than or equal to 1), or it can represent X time slots, X frames, X milliseconds (ms), X seconds (s), etc., and this disclosure does not specifically limit this. The dimensions of the time unit and the time interval can be the same or different. The dimensions of the sixth and seventh time units can be the same or different.

[0247] It is worth mentioning that the aforementioned fifth time interval can be a predefined value, that is, it can be an interval predetermined in the communication protocol, or it can be preset before the implementation of the embodiments of this disclosure. Alternatively, the fifth time interval can also be indicated by the second indication information, which can carry information about 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.

[0248] Optionally, the method further includes:

[0249] Receive the second SSB transmission during the sixth time interval;

[0250] The sixth time interval is a predefined value, or the sixth time interval is indicated by the second indication information.

[0251] In some embodiments, receiving devices such as terminals 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. The entire process from the network device sending the second SSB transmission to the terminal receiving the second SSB transmission should be controlled within the sixth time interval. This allows the receiving devices such as terminals to align with the sending devices on the duration of the second SSB transmission, thereby ensuring the quality and stability of information reception and reducing overall communication latency.

[0252] Similarly, the sixth time interval can also be a predefined value, that is, it can be an interval predetermined in the communication protocol, or it can be preset before the implementation of the embodiments of this disclosure. Alternatively, the sixth time interval can also be indicated by the second indication information, which can carry the information of the sixth time interval, indicating that the transmitting device must follow the sixth time interval when transmitting the second indication information and the second SSB transmission in sequence.

[0253] Optionally, the method further includes:

[0254] The first uplink grant will be received starting in the eighth time unit;

[0255] There is a seventh time interval between the sixth time unit and the eighth time unit. The seventh time interval is a predefined value, or the seventh time interval is determined by the second indication information.

[0256] In another embodiment, the receiving device, such as the terminal, can receive the first uplink grant in the eighth time unit. Since a seventh time interval may exist between the sixth and eighth time units, the receiving side can send the second indication information in the sixth time unit, and then, after a seventh time interval, can begin receiving the first uplink grant in the eighth time unit. This allows the receiving device and the transmitting device to align the start time of the first uplink grant. Simultaneously, an eighth time interval can be reserved for both the receiving and transmitting sides, facilitating adjustments to the receiving or transmitting states to adapt to different communication needs and achieve efficient communication based on actual conditions.

[0257] It is understood that receiving the first uplink grant at the start of the eighth time unit can also be described as monitoring the first uplink grant at the start of the eighth time unit, or detecting the first uplink grant at the start of the eighth time unit. This disclosure does not limit this.

[0258] Optionally, the method further includes:

[0259] The first uplink grant will be received starting in the ninth time unit;

[0260] There is an eighth time interval between the ninth time unit and the tenth time unit. The tenth time unit is the time unit for ending the reception of the second SSB. The eighth time interval is a predefined value, or the eighth time interval is indicated by the second indication information.

[0261] In some embodiments, receiving devices such as terminals may receive the first uplink grant in the ninth time unit. In network communication, receiving devices such as terminals need to obtain uplink grants to transmit data to transmitting devices such as base stations. Therefore, uplink grants typically include time and frequency resource allocation information to ensure that data transmission between different devices does not conflict and that system resources are used effectively. Thus, the second indication information can request the transmitting side to send the first uplink grant. The first uplink grant can allocate appropriate time and frequency domain resources to either the receiving or transmitting device, avoiding resource waste and improving communication efficiency.

[0262] Furthermore, before receiving the first uplink grant, the SSB can be triggered first. Specifically, the transmitting device can send a second indication message to the receiving device, for example, the terminal can send the second indication message to the transmitting device such as the base station. Subsequently, after an eighth time interval, the transmitting device such as the base station can send a second SSB transmission to the receiving device such as the terminal. After the second SSB transmission ends and after an eighth time interval, the transmitting device sends the first uplink grant to the receiving device, and the receiving device such as the terminal can start receiving the first uplink grant in the ninth time unit.

[0263] Therefore, the tenth time unit when the receiving side ends the reception of the second SSB transmission can be separated from the ninth time unit when it receives the first uplink grant by an eighth time interval. This allows the receiving side device, such as the terminal, to align with the sending side device on the start time of the first uplink grant. At the same time, it ensures that the receiving side and the sending side only start data transmission after the SSB trigger is completed, thus meeting communication requirements and improving communication stability.

[0264] It is understood that receiving the first uplink grant at the start of the ninth time unit can also be described as monitoring the first uplink grant at the start of the ninth time unit, or detecting the first uplink grant at the start of the ninth time unit. This disclosure does not limit this.

[0265] Optionally, before sending the second indication information, the method further includes:

[0266] Receive first configuration information, which is used to indicate that the second indication information is associated with the first cell.

[0267] In some embodiments of this disclosure, the receiving side may also receive first configuration information sent by the transmitting side. The first configuration information may be information associated with a first cell transmitting the second indication information. The first configuration information may include a cell ID, frequency information, transmission parameters, etc., which helps the receiving device correctly identify and connect to a specific cell. Upon receiving the first configuration information, the receiving device can use it to determine how to process the received second indication information and establish an association with the corresponding first cell.

[0268] Optionally, the method further includes:

[0269] Receive second configuration information, which indicates one or more of the following:

[0270] The frequency domain location of the second SSB transmission;

[0271] The transmission period of the second SSB transmission;

[0272] The second index indication of the second SSB transmission is used to indicate the SSB index actually transmitted within the SSB pattern corresponding to the second SSB transmission.

[0273] In some embodiments, the transmitting side can send second configuration information to the receiving side. This second configuration information may include the frequency domain location, transmission period, and second index indication corresponding to the second SSB transmission. The receiving device, such as a terminal, can directly determine the frequency domain location of the second SSB transmission using this second configuration information. By configuring these specific parameters, the terminal device can quickly detect the first SSB transmission, improving transmission efficiency. Furthermore, the second index indication can also instruct the terminal device not to detect the SSB at an index where it has not actually been transmitted, reducing detection overhead and power consumption.

[0274] Optionally, the second SSB transmission corresponds to the second SSB burst;

[0275] Specifically, the spatial information of multiple SSB indices in the second SSB burst is consistent, or the multiple SSB indices in the second SSB burst have the same QCL characteristics, or the spatial transmission filters corresponding to the multiple SSB indices in the second SSB burst are the same.

[0276] In some embodiments, the second SSB transmission may correspond to a second SSB burst, which may consist of one or more SSB indices. In this case, the spatial 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-addressable QCL characteristics, or each SSB index in the second SSB burst corresponds to the same spatial transmission filter. This allows the terminal device to complete synchronization and AGC calibration based on fewer SSB indices, improving transmission efficiency; simultaneously, the network device can also send fewer SSB indices, thereby reducing the power consumption of the network device when sending SSBs.

[0277] In some embodiments, the second SSB burst can consist of multiple SSB index sets, and each index set in the second SSB burst can include one or more SSB indices. Thus, multiple SSB indices are combined into an index set, and then these index sets are combined again to form the second SSB burst. In this case, the spatial information of each SSB index within the same SSB index set is consistent, or each SSB index within the same SSB index set has the same quasi-co-addressable QCL characteristics, or the spatial transmission filter corresponding to each SSB index within the same SSB index set is the same. This allows the terminal device to complete synchronization and AGC calibration based on fewer SSB bursts, improving transmission efficiency; simultaneously, the network device can send fewer SSB bursts, thereby reducing the power consumption of the network device when sending SSBs.

[0278] Furthermore, the network system can dynamically adjust the number of index sets and the structure of SSB bursts according to needs to adapt to different communication scenarios. It can also transmit multiple signals within the same transmission cycle, reducing transmission latency and improving system throughput. Therefore, assembling SSB indexes into SSB burst structures can facilitate signal identification and demodulation, and improve transmission efficiency.

[0279] In the above embodiments, the receiver can process these signals based on consistent spatial information, QCL characteristics, or by using the same receiver filter structure, thereby simplifying the design of the receiver, saving network system resources, reducing repetitive processing and calculations, and improving resource utilization.

[0280] Furthermore, in the above embodiments, the same quasi-co-addressable QCL characteristics, i.e., the QCL configuration of any one of the multiple SSB indexes, still apply to the other SSB indexes. In another embodiment, the SSB indexes corresponding to each of the multiple SSB index sets can have the same TCL configuration.

[0281] Optionally, the spatial domain information of the SSB indices in the second SSB index set is consistent; or, the SSB indices in the second SSB index set have the same QCL characteristics; or, the spatial domain transfer filters corresponding to the SSB indices in the second SSB index set are the same.

[0282] The second SSB index set is one or more SSB indices in the second index indication that indicate the actual transmission.

[0283] In some embodiments, the one or more SSB indices indicating actual transmission in the second index indication can form a second SSB index set. This second SSB index set may include one or more SSB indices. In this case, the spatial 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-address QCL characteristics, or each SSB index in the second SSB index set corresponds to the same spatial transmission filter. This allows the terminal device to complete synchronization and AGC calibration based on fewer SSB indices, improving transmission efficiency; simultaneously, the network device can also send fewer SSB indices, thereby reducing the power consumption of the network device when sending SSBs.

[0284] In some embodiments, the second SSB index set may also include multiple SSB index sets, and each index set may contain multiple SSB indices. In this case, all SSB indices within the same SSB index set in the second SSB index set may have the same spatial information, or all SSB indices within the same SSB index set in the second SSB index set may have the same QCL characteristics or the same corresponding spatial receiving filter. This allows the terminal device to complete synchronization and AGC calibration with fewer SSB bursts, improving transmission efficiency; simultaneously, the network device can send fewer SSB bursts, thereby reducing the power consumption of the network device when sending SSBs.

[0285] Optionally, the first uplink authorization includes a secondary cell activation command.

[0286] Understandably, in a communication system, a secondary cell activation command can be an instruction sent from the network side to the user side to activate the communication connection between the user-side equipment and the secondary cell. Secondary cells are typically used to provide additional capacity and coverage to support the access and data transmission of more user-side equipment.

[0287] In specific embodiments of this disclosure, when a receiving device such as a terminal receives a first uplink grant, it may include a secondary cell activation command. This means that the receiving device not only needs to comply with the uplink grant of the primary cell but also needs to activate the communication connection with the secondary cell to transmit data on the secondary cell. This allows for the activation of the secondary cell to support more devices simultaneously accessing the network and transmitting data, improving the network system's capacity and coverage. It also expands the network's coverage area, providing broader communication services, especially in high-density user areas or edge areas. Furthermore, the secondary cell can share the load of the primary cell, effectively allocating and utilizing system resources, avoiding resource bottlenecks and congestion. Additionally, by properly configuring the secondary cell activation command, network communication quality can be improved, interference and data transmission errors reduced, and user experience enhanced.

[0288] Optionally, the secondary cell is the first cell.

[0289] Specifically, in the above embodiments, the receiving side can receive the second SSB transmission and the first uplink grant on the first cell, that is, the first cell can be an Scell ​​at this time. In another embodiment, when the first uplink grant includes a secondary cell activation command, the cell activated by the activation command can be the first cell.

[0290] Please refer to Figure 5. This disclosure also provides a method for triggering a Synchronization Signal Block (SSB), the method comprising:

[0291] Step 201: Send first indication information, which is used to trigger the first SSB transmission and schedule the first downlink transmission;

[0292] or,

[0293] Receive a second indication message, which is used to trigger a second SSB transmission and to request a first UL grant.

[0294] It should be noted that the embodiments disclosed herein can be specifically applied to scenarios where receiving devices such as terminals have data transmission service requirements after SCell activation, necessitating SSB measurement and data transmission. Specifically, the executing entity of the SSB triggering method in the above embodiments can be a transmitting device, such as a network device like a base station.

[0295] The transmitting-side equipment can specifically be access network equipment or core network equipment. Access network equipment can also be referred to as radio access network equipment, radio access network (RAN), radio access network function, or radio access network unit. Access network equipment can include base stations, wireless local area network (WLAN) access points, or wireless Fidelity (WiFi) nodes, etc. Base stations can be referred to as Node B, Evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B node, home evolved B node, Transmission Reception Point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that this disclosure only uses a base station in an NR system as an example and does not limit the specific type of base station.Core network equipment may include, but is not limited to, at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), Binding Support Function (BSF), and Application Function. Functions, AFs, etc. It should be noted that this disclosure only uses the core network equipment in the NR system as an example for introduction, and does not limit the specific type of core network equipment.

[0296] Optionally, the first indication information is DCI.

[0297] Optionally, the first indication information includes at least one of the following:

[0298] The first bit field identifies the first indication information used to trigger the first SSB transmission and / or schedule the first downlink transmission.

[0299] The index value corresponding to the first cell;

[0300] The physical cell identifier corresponding to the first cell.

[0301] Optionally, the method further includes:

[0302] The first SSB transmission and the first downlink transmission are transmitted on the first cell.

[0303] Optionally, the method further includes: sending the first indication information on the second cell.

[0304] Optionally, the first indication information includes at least one of the following:

[0305] The frequency domain location of the first SSB transmission;

[0306] The transmission period of the first SSB transmission;

[0307] The first index indication of the first SSB transmission is used to indicate the actual SSB index transmitted within the SSB pattern corresponding to the first SSB transmission.

[0308] Optionally, the first indication information may further include reference signal indication information, which is used to indicate the first CSI-RS transmission.

[0309] Optionally, the first downlink transmission is a first CSI-RS.

[0310] Optionally, the first downlink transmission includes a MAC CE for a secondary cell activation command; or,

[0311] The first downlink transmission includes RRC signaling indicating secondary cell activation.

[0312] Optionally, the secondary cell is the first cell.

[0313] Optionally, the second indication information is SR or PRACH.

[0314] Optionally, the method further includes:

[0315] The second SSB transmission is sent on the first cell, and the first UL grant is sent on the first cell.

[0316] Optionally, the method further includes:

[0317] The second instruction information is received on the second cell.

[0318] Optionally, before receiving the second indication information, the method further includes:

[0319] Send first configuration information, which is used to indicate that the second indication information is associated with the first cell.

[0320] Optionally, the method further includes:

[0321] Send second configuration information, which indicates one or more of the following:

[0322] The frequency domain location of the second SSB transmission;

[0323] The transmission period of the second SSB transmission;

[0324] The second index indication of the second SSB transmission is used to indicate the SSB index actually transmitted within the SSB pattern corresponding to the second SSB transmission.

[0325] Optionally, the first UL grant includes a secondary cell activation command.

[0326] Optionally, the secondary cell is the first cell.

[0327] Thirdly, this disclosure also provides an SSB triggering device, the device comprising:

[0328] The first receiving module is configured to receive first indication information, which is used to trigger the first SSB transmission and schedule the first downlink transmission.

[0329] or,

[0330] A first sending module is used to send second indication information, which is used to trigger a second SSB transmission and to request a first UL grant.

[0331] Fourthly, embodiments of this disclosure provide an SSB triggering device, the device comprising:

[0332] The second sending module is used to send first indication information, which is used to trigger the first SSB transmission and schedule the first downlink transmission.

[0333] or,

[0334] The second receiving module is used to receive second indication information, which is used to trigger a second SSB transmission and to request a first UL grant.

[0335] Based on the above, this disclosure provides an SSB triggering method to address the issues of high data transmission overhead and long latency in NES Cell scenarios. In this disclosure, receiving devices such as terminals and transmitting devices such as network devices can trigger SSB activation based on first or second indication information and perform data transmission, reducing overhead, simplifying the process, and improving network energy efficiency. The SSB triggering method in the above embodiments and the media negotiation method described in Figure 2 are based on the same application concept. Since the principles for solving the problems are similar, the implementation of the above SSB triggering method can refer to the aforementioned embodiments, and repeated details will not be elaborated further.

[0336] Referring to Figures 6 and 7, this disclosure also provides an SSB triggering device, which specifically includes:

[0337] The first receiving module 301 is used to receive first indication information, which is used to trigger the first SSB transmission and schedule the first downlink transmission.

[0338] or,

[0339] The first sending module 302 is used to send second indication information, which is used to trigger a second SSB transmission and to request a first UL grant.

[0340] Optionally, the first indication information is downlink control information (DCI).

[0341] Optionally, the first indication information includes at least one of the following:

[0342] The first bit field identifies the first indication information used to trigger the first SSB transmission and schedule the first downlink transmission;

[0343] The index value corresponding to the first cell;

[0344] The physical cell identifier corresponding to the first cell.

[0345] Optionally, the SSB triggering device further includes:

[0346] The third receiving module is used to receive the first SSB transmission and the first downlink transmission on the first cell.

[0347] Optionally, the first receiving module 301 is used to:

[0348] The first instruction information is received on the second cell.

[0349] Optionally, the SSB triggering device further includes:

[0350] The fifth receiving module is used to receive the first SSB transmission starting in the first time unit;

[0351] Wherein, there is a first time interval between the first time unit and the second time unit, the second time unit is the time unit where the first indication information is located, the first time interval is a predefined value, or the first time interval is indicated by the first indication information.

[0352] Optionally, the SSB triggering device further includes:

[0353] The sixth receiving module is used to receive the first SSB transmission during the second time interval;

[0354] Wherein, the second time interval is a predefined value, or the second time interval is indicated by the first indication information.

[0355] Optionally, the SSB triggering device further includes:

[0356] The seventh receiving module is used to receive the first downlink transmission in the third time unit;

[0357] There is a third time interval between the first time unit and the third time unit. The third time interval is a predefined value, or the third time interval is determined by the first indication information.

[0358] Optionally, the SSB triggering device further includes:

[0359] The eighth receiving module is used to receive the first downlink transmission in the fourth time unit;

[0360] There is a fourth time interval between the fourth time unit and the 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.

[0361] Optionally, the first indication information includes at least one of the following:

[0362] The frequency domain location of the first SSB transmission;

[0363] The transmission period of the first SSB transmission;

[0364] The first index indication of the first SSB transmission is used to indicate the actual SSB index transmitted within the SSB pattern corresponding to the first SSB transmission.

[0365] Optionally, the first SSB transmission corresponds to the first SSB set burst;

[0366] Specifically, the spatial information of multiple SSB indices in the first SSB burst is consistent, or the multiple SSB indices in the first SSB burst have the same quasi-co-address QCL characteristics, or the spatial transmission filters corresponding to the multiple SSB indices in the first SSB burst are the same.

[0367] Optionally, the spatial information of the SSB indices in the first SSB index set is consistent; or, the SSB indices in the first SSB index set have the same QCL characteristics; or, the spatial transfer filters corresponding to the SSB indices in the first SSB index set are the same.

[0368] The first SSB index set is one or more SSB indices that indicate the actual transmission in the first index indication.

[0369] Optionally, the first indication information further includes reference signal indication information, which indicates the transmission of a first channel state information reference signal (CSI-RS).

[0370] Optionally, the first downlink transmission is a first CSI-RS.

[0371] Optionally, the first downlink transmission includes a Media Access Control (MAC) CE for a secondary cell activation command; or,

[0372] The first downlink transmission includes Radio Resource Control (RRC) signaling indicating secondary cell activation.

[0373] Optionally, the secondary cell is the first cell.

[0374] Optionally, the second indication information is an uplink scheduling request (SR) or a physical random access channel (PRACH).

[0375] Optionally, the SSB triggering device further includes:

[0376] The ninth receiving module is configured to receive the second SSB transmission on the first cell, and to receive the first uplink grant on the first cell.

[0377] Optionally, the SSB triggering device further includes:

[0378] The tenth receiving module is used to send the second indication information on the second cell.

[0379] Optionally, the SSB triggering device further includes:

[0380] The eleventh receiving module is used to receive the second SSB transmission starting at the sixth time unit;

[0381] There is a fifth time interval between the sixth time unit and the seventh time unit. The seventh time unit is the time unit where the second indication information is located. The fifth time interval is a predefined value, or the fifth time interval is indicated by the second indication information.

[0382] Optionally, the SSB triggering device further includes:

[0383] The twelfth receiving module is used to receive the second SSB transmission within the sixth time interval;

[0384] The sixth time interval is a predefined value, or the sixth time interval is indicated by the second indication information.

[0385] Optionally, the SSB triggering device further includes:

[0386] The thirteenth receiving module is used to receive the first uplink grant starting in the eighth time unit;

[0387] There is a seventh time interval between the sixth time unit and the eighth time unit. The seventh time interval is a predefined value, or the seventh time interval is determined by the second indication information.

[0388] Optionally, the SSB triggering device further includes:

[0389] The fourteenth receiving module is used to receive the first uplink grant starting in the ninth time unit;

[0390] There is an eighth time interval between the ninth time unit and the tenth time unit. The tenth time unit is the time unit for ending the reception of the second SSB. The eighth time interval is a predefined value, or the eighth time interval is indicated by the second indication information.

[0391] Optionally, before sending the second indication information, the SSB triggering device further includes:

[0392] The fifteenth receiving module is used to receive first configuration information, which is used to indicate that the second indication information is associated with the first cell.

[0393] Optionally, the SSB triggering device further includes:

[0394] The sixteenth receiving module is configured to receive second configuration information, which indicates one or more of the following:

[0395] The frequency domain location of the second SSB transmission;

[0396] The transmission period of the second SSB transmission;

[0397] The second index indication of the second SSB transmission is used to indicate the SSB index actually transmitted within the SSB pattern corresponding to the second SSB transmission.

[0398] Optionally, the second SSB transmission corresponds to the second SSB burst;

[0399] Specifically, the spatial information of multiple SSB indices in the second SSB burst is consistent, or the multiple SSB indices in the second SSB burst have the same QCL characteristics, or the spatial transmission filters corresponding to the multiple SSB indices in the second SSB burst are the same.

[0400] Optionally, the spatial domain information of the SSB indices in the second SSB index set is consistent; or, the SSB indices in the second SSB index set have the same QCL characteristics; or, the spatial domain transfer filters corresponding to the SSB indices in the second SSB index set are the same.

[0401] The second SSB index set is one or more SSB indices in the second index indication that indicate the actual transmission.

[0402] Optionally, the first uplink authorization includes a secondary cell activation command.

[0403] Optionally, the secondary cell is the first cell.

[0404] It should be noted that the SSB triggering device provided in this disclosure is an apparatus capable of executing the above-described SSB triggering method applied to the receiving side. Therefore, all implementation methods in the above-described SSB triggering method embodiments are applicable to this SSB triggering device and can achieve the same or similar beneficial effects. To avoid repetition, this embodiment will not elaborate further.

[0405] Please refer to Figures 8 and 9. This disclosure provides an SSB triggering device, the device comprising:

[0406] The second sending module 401 is used to send first indication information, which is used to trigger the first SSB transmission and schedule the first downlink transmission.

[0407] or,

[0408] The second receiving module 402 is used to receive second indication information, which is used to trigger a second SSB transmission and to request a first UL grant.

[0409] Optionally, the first indication information is DCI.

[0410] Optionally, the first indication information includes at least one of the following:

[0411] The first bit field identifies the first indication information used to indicate the first SSB transmission and / or schedule the first downlink transmission.

[0412] The index value corresponding to the first cell;

[0413] The physical cell identifier corresponding to the first cell.

[0414] Optionally, the SSB triggering device further includes:

[0415] The third transmitting module is used to transmit the first SSB transmission and the first downlink transmission on the first cell.

[0416] Optionally, the SSB triggering device further includes:

[0417] The fourth sending module is used to send the first indication information on the second cell.

[0418] Optionally, the first indication information includes at least one of the following:

[0419] The frequency domain location of the first SSB transmission;

[0420] The transmission period of the first SSB transmission;

[0421] The first index indication of the first SSB transmission is used to indicate the actual SSB index transmitted within the SSB pattern corresponding to the first SSB transmission.

[0422] Optionally, the first indication information may further include reference signal indication information, which is used to indicate the first CSI-RS transmission.

[0423] Optionally, the first downlink transmission is a first CSI-RS.

[0424] Optionally, the first downlink transmission includes a MAC CE for a secondary cell activation command; or,

[0425] The first downlink transmission includes RRC signaling indicating secondary cell activation.

[0426] Optionally, the secondary cell is the first cell.

[0427] Optionally, the second indication information is SR or PRACH.

[0428] Optionally, the SSB triggering device further includes:

[0429] The fifth transmitting module is used to transmit the second SSB transmission on the first cell, and to transmit the first UL grant on the first cell.

[0430] Optionally, the SSB triggering device further includes:

[0431] The seventeenth receiving module is used to receive the second indication information on the second cell.

[0432] Optionally, before receiving the second indication information, the SSB triggering device further includes:

[0433] The sixth sending module is used to send first configuration information, which is used to indicate that the second indication information is associated with the first cell.

[0434] Optionally, the SSB triggering device further includes:

[0435] The seventh sending module is used to send second configuration information, which is used to indicate one or more of the following:

[0436] The frequency domain location of the second SSB transmission;

[0437] The transmission period of the second SSB transmission;

[0438] The second index indication of the second SSB transmission is used to indicate the SSB index actually transmitted within the SSB pattern corresponding to the second SSB transmission.

[0439] Optionally, the first UL grant includes a secondary cell activation command.

[0440] Optionally, the secondary cell is the first cell.

[0441] It should be noted that this embodiment is an implementation of the SSB triggering device corresponding to the SSB triggering method embodiment applied to the transmitting side shown above. For the specific implementation, please refer to the relevant descriptions in the aforementioned embodiments. To avoid repetition, this embodiment will not be repeated.

[0442] As shown in FIG10, the transmitting-side device of this embodiment includes: a processor 500, configured to read a program from a memory 520 and execute the following processes:

[0443] The transceiver 510 receives first indication information, which is used to trigger the first SSB transmission and schedule the first downlink transmission.

[0444] or,

[0445] The transceiver 510 transmits a second instruction message, which is used to trigger a second SSB transmission and to request a first UL grant.

[0446] Transceiver 510 is used to receive and send data under the control of processor 500.

[0447] In Figure 10, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 500 and memory represented by memory 520. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 510 may be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, user interface 530 may also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0448] The processor 500 is responsible for managing the bus architecture and general processing, while the memory 520 can store the data used by the processor 500 when performing operations.

[0449] Optionally, the first indication information is downlink control information (DCI).

[0450] Optionally, the first indication information includes at least one of the following:

[0451] The first bit field identifies the first indication information used to trigger the first SSB transmission and schedule the first downlink transmission;

[0452] The index value corresponding to the first cell;

[0453] The physical cell identifier corresponding to the first cell.

[0454] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0455] The first SSB transmission and the first downlink transmission are received via transceiver 510 on the first cell.

[0456] Optionally, the method further includes:

[0457] The first instruction information is received on the second cell via transceiver 510.

[0458] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0459] The first time unit begins receiving the first SSB transmission via transceiver 510;

[0460] Wherein, there is a first time interval between the first time unit and the second time unit, the second time unit is the time unit where the first indication information is located, the first time interval is a predefined value, or the first time interval is indicated by the first indication information.

[0461] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0462] During the second time interval, the first SSB transmission is received via transceiver 510;

[0463] Wherein, the second time interval is a predefined value, or the second time interval is indicated by the first indication information.

[0464] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0465] The first downlink transmission is received via transceiver 510 in the third time unit;

[0466] There is a third time interval between the first time unit and the third time unit. The third time interval is a predefined value, or the third time interval is determined by the first indication information.

[0467] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0468] The first downlink transmission is received via transceiver 510 in the fourth time unit;

[0469] There is a fourth time interval between the fourth time unit and the 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.

[0470] Optionally, the first indication information includes at least one of the following:

[0471] The frequency domain location of the first SSB transmission;

[0472] The transmission period of the first SSB transmission;

[0473] The first index indication of the first SSB transmission is used to indicate the actual SSB index transmitted within the SSB pattern corresponding to the first SSB transmission.

[0474] Optionally, the first SSB transmission corresponds to the first SSB set burst;

[0475] Specifically, the spatial information of multiple SSB indices in the first SSB burst is consistent, or the multiple SSB indices in the first SSB burst have the same quasi-co-address QCL characteristics, or the spatial transmission filters corresponding to the multiple SSB indices in the first SSB burst are the same.

[0476] Optionally, the spatial information of the SSB indices in the first SSB index set is consistent; or, the SSB indices in the first SSB index set have the same QCL characteristics; or, the spatial transfer filters corresponding to the SSB indices in the first SSB index set are the same.

[0477] The first SSB index set is one or more SSB indices that indicate the actual transmission in the first index indication.

[0478] Optionally, the first indication information further includes reference signal indication information, which indicates the transmission of a first channel state information reference signal (CSI-RS).

[0479] Optionally, the first downlink transmission is a first CSI-RS.

[0480] Optionally, the first downlink transmission includes a Media Access Control (MAC) CE for a secondary cell activation command; or,

[0481] The first downlink transmission includes Radio Resource Control (RRC) signaling indicating secondary cell activation.

[0482] Optionally, the secondary cell is the first cell.

[0483] Optionally, the second indication information is an uplink scheduling request (SR) or a physical random access channel (PRACH).

[0484] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0485] The second SSB transmission is received via transceiver 510 in the first cell, and the first uplink grant is received in the first cell.

[0486] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0487] The second instruction information is transmitted via transceiver 510 on the second cell.

[0488] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0489] In the sixth time unit, the transceiver 510 begins receiving the second SSB transmission;

[0490] There is a fifth time interval between the sixth time unit and the seventh time unit. The seventh time unit is the time unit where the second indication information is located. The fifth time interval is a predefined value, or the fifth time interval is indicated by the second indication information.

[0491] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0492] The second SSB transmission is received via transceiver 510 during the sixth time interval;

[0493] The sixth time interval is a predefined value, or the sixth time interval is indicated by the second indication information.

[0494] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0495] In the eighth time unit, the first uplink grant is received via transceiver 510;

[0496] There is a seventh time interval between the sixth time unit and the eighth time unit. The seventh time interval is a predefined value, or the seventh time interval is determined by the second indication information.

[0497] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0498] In the ninth time unit, the first uplink grant is received via transceiver 510;

[0499] There is an eighth time interval between the ninth time unit and the tenth time unit. The tenth time unit is the time unit for ending the reception of the second SSB. The eighth time interval is a predefined value, or the eighth time interval is indicated by the second indication information.

[0500] Optionally, before sending the second indication information, the processor 500 reads the program in the memory 520 and executes the following process:

[0501] The transceiver 510 receives first configuration information, which is used to indicate that the second indication information is associated with the first cell.

[0502] Optionally, the processor 500 is configured to read the program from the memory 520 and execute the following procedures:

[0503] The transceiver 510 receives second configuration information, which is used to indicate one or more of the following:

[0504] The frequency domain location of the second SSB transmission;

[0505] The transmission period of the second SSB transmission;

[0506] The second index indication of the second SSB transmission is used to indicate the SSB index actually transmitted within the SSB pattern corresponding to the second SSB transmission.

[0507] Optionally, the second SSB transmission corresponds to the second SSB burst;

[0508] Specifically, the spatial information of multiple SSB indices in the second SSB burst is consistent, or the multiple SSB indices in the second SSB burst have the same QCL characteristics, or the spatial transmission filters corresponding to the multiple SSB indices in the second SSB burst are the same.

[0509] Optionally, the spatial domain information of the SSB indices in the second SSB index set is consistent; or, the SSB indices in the second SSB index set have the same QCL characteristics; or, the spatial domain transfer filters corresponding to the SSB indices in the second SSB index set are the same.

[0510] The second SSB index set is one or more SSB indices in the second index indication that indicate the actual transmission.

[0511] Optionally, the first uplink authorization includes a secondary cell activation command.

[0512] Optionally, the secondary cell is the first cell.

[0513] The receiving device provided in this embodiment can execute the SSB triggering method embodiment shown in FIG2 above. Its implementation principle and technical effect are similar, and will not be described again here.

[0514] As shown in FIG11, the transmitting-side device of this embodiment includes: a processor 600, configured to read a program from a memory 620 and execute the following processes:

[0515] The transceiver 610 sends a first indication message, which is used to trigger a first SSB transmission and schedule a first downlink transmission.

[0516] or,

[0517] The transceiver 610 receives a second indication message, which is used to trigger a second SSB transmission and to request a first UL grant.

[0518] Transceiver 610 is used to receive and send data under the control of processor 600.

[0519] In Figure 11, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 600 and memory represented by memory 620. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 610 may be multiple components, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, user interface 630 may also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0520] The processor 600 is responsible for managing the bus architecture and general processing, while the memory 620 can store the data used by the processor 500 during operation.

[0521] Optionally, the first indication information is DCI.

[0522] Optionally, the first indication information includes at least one of the following:

[0523] The first bit field identifies the first indication information used to indicate the first SSB transmission and / or schedule the first downlink transmission.

[0524] The index value corresponding to the first cell;

[0525] The physical cell identifier corresponding to the first cell.

[0526] Optionally, the processor 600 is configured to read the program from the memory 620 and execute the following procedures:

[0527] The first SSB transmission and the first downlink transmission are transmitted via transceiver 610 on the first cell.

[0528] Optionally, the processor 600 is configured to read the program from the memory 620 and execute the following procedures:

[0529] The first instruction information is transmitted via transceiver 610 on the second cell.

[0530] Optionally, the first indication information includes at least one of the following:

[0531] The frequency domain location of the first SSB transmission;

[0532] The transmission period of the first SSB transmission;

[0533] The first index indication of the first SSB transmission is used to indicate the actual SSB index transmitted within the SSB pattern corresponding to the first SSB transmission.

[0534] Optionally, the first indication information may further include reference signal indication information, which is used to indicate the first CSI-RS transmission.

[0535] Optionally, the first downlink transmission is a first CSI-RS.

[0536] Optionally, the first downlink transmission includes a MAC CE for a secondary cell activation command; or,

[0537] The first downlink transmission includes RRC signaling indicating secondary cell activation.

[0538] Optionally, the secondary cell is the first cell.

[0539] Optionally, the second indication information is SR or PRACH.

[0540] Optionally, the processor 600 is configured to read the program from the memory 620 and execute the following procedures:

[0541] The second SSB transmission is transmitted via transceiver 610 on the first cell, and the first UL grant is transmitted on the first cell.

[0542] Optionally, the processor 600 is configured to read the program from the memory 620 and execute the following procedures:

[0543] The second instruction information is received on the second cell via transceiver 610.

[0544] Optionally, before receiving the second indication information, the method further includes:

[0545] The transceiver 610 sends first configuration information, which is used to indicate that the second indication information is associated with the first cell.

[0546] Optionally, the processor 600 is configured to read the program from the memory 620 and execute the following procedures:

[0547] The transceiver 610 transmits second configuration information, which is used to indicate one or more of the following:

[0548] The frequency domain location of the second SSB transmission;

[0549] The transmission period of the second SSB transmission;

[0550] The second index indication of the second SSB transmission is used to indicate the SSB index actually transmitted within the SSB pattern corresponding to the second SSB transmission.

[0551] Optionally, the first UL grant includes a secondary cell activation command.

[0552] Optionally, the secondary cell is the first cell.

[0553] The transmitting-side device provided in this embodiment can execute the SSB triggering method embodiment shown in FIG5 above. Its implementation principle and technical effect are similar, and will not be described again here.

[0554] This disclosure also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements the various processes of the above-described SSB triggering method embodiments and achieves the same technical effects. To avoid repetition, it will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0555] This disclosure also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the SSB triggering method embodiments described above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0556] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0557] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the related technology, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network-side device, etc.) to execute the methods described in the various embodiments of this disclosure.

[0558] The embodiments of this disclosure have been described above with reference to the accompanying drawings. However, this disclosure is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this disclosure without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this disclosure.

Claims

1. A synchronization signal block (SSB) triggering method, comprising: receiving first indication information, the first indication information being used for triggering a first SSB transmission and scheduling a first downlink transmission; or transmitting second indication information, the second indication information being used for triggering a second SSB transmission and requesting a first uplink grant (UL grant). The first indication information is downlink control information (DCI). The first indication information comprises at least one of the following: a first bit field, the first bit field indicating that the first indication information is used for triggering the first SSB transmission and / or scheduling the first downlink transmission; 2. The method of claim 1, wherein, an index value corresponding to a first cell; and 3. The method of claim 1 or 2, wherein, a physical cell identifier (PCI) corresponding to the first cell. 4.The method of claim 3, further comprising: receiving the first SSB transmission and the first downlink transmission on the first cell. The receiving the first indication information comprises: receiving the first indication information on a second cell. 6.The method of claim 1 or 2, further comprising: starting to receive the first SSB transmission at a first time unit; 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. 7.The method of claim 1 or 2, further comprising: 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.

5. The method of claim 1 or 2, wherein, 8.The method of claim 6, further comprising: receiving the first downlink transmission at a third time unit; 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. 9.The method of claim 1 or 2, further comprising: receiving the first downlink transmission at a fourth time unit; 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 first SSB transmission ends, the fourth time interval being a predefined value, or the fourth time interval being indicated by the first indication information. The first indication information comprises at least one of the following: a frequency domain position of the first SSB transmission; a transmission periodicity 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 an SSB pattern corresponding to the first SSB transmission. 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 a same quasi co-location (QCL) feature, or spatial domain transmission filters corresponding to multiple SSB indexes in the first SSB burst are same. ​ ​ ​ ​ ​ ​ ​ 10. The method of claim 1 or 2, wherein, ​ ​ ​ ​ 11. The method of claim 1 or 2, wherein, ​ ​ 12. The method of claim 10, wherein, The spatial 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 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 layer control element (MAC CE) of a secondary cell activation command; or, The first downlink transmission comprises radio resource control (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, further comprising: 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, further comprising: sending the second indication information on a second cell.

20. The method of claim 1 or 17, further comprising: 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 being a time unit where the second indication information is located, and the fifth time interval being a predefined value or indicated by the second indication information.

21. The method of claim 1 or 17, further comprising: 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, further comprising: 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, further comprising: 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 being a time unit where the second SSB transmission ends, and the eighth time interval being a predefined value or indicated by the second indication information.

24. The method of claim 18, wherein, Before the sending of the second indication information, 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, further comprising: receiving second configuration information, the second configuration information being used to indicate one or more of the following: a frequency domain location of the second SSB transmission; a transmission periodicity of the second SSB transmission; a second index indication of the second SSB transmission, the second index indication indicating a SSB index actually transmitted within 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; wherein a 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 a same QCL characteristic, or a plurality of SSB indexes in the second SSB burst correspond to a same spatial domain transmission filter.

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

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

29. The method of claim 28, wherein, the secondary cell is a first cell. 30.A method for SSB triggering, comprising: transmitting first indication information, the first indication information being used for triggering a first SSB transmission and scheduling a first downlink transmission; or, receiving second indication information, the second indication information being used for triggering a 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 comprises at least one of: a first bit field, the first bit field indicating 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 a first cell; a physical cell identity corresponding to a first cell. 33.The method of claim 32, further comprising: transmitting the first SSB transmission and the first downlink transmission on the first cell. 34.The method of claim 30 or 31, further comprising: transmitting the first indication information on a second cell.

35. The method of claim 30 or 31, wherein, the first indication information comprises at least one of: a frequency domain location of the first SSB transmission; a transmission periodicity of the first SSB transmission; a first index indication of the first SSB transmission, the first index indication indicating a SSB index actually transmitted within a SSB pattern corresponding to the first SSB transmission.

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

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

38. The method of claim 37, wherein, the first downlink transmission comprises a MAC CE of a secondary cell activation command; or the first downlink transmission comprises RRC signaling indicating a 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, further comprising: transmitting the second SSB transmission on a first cell, and transmitting the first UL grant on the first cell. 42.The method of claim 30 or 40, further comprising: receiving the second indication information on a second cell.

43. The method of claim 39, wherein, before the receiving the second indication information, the method further comprising: 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, further comprising: sending second configuration information, the second configuration information being used for indicating one or more of: a frequency domain location of the second SSB transmission; a transmission periodicity of the second SSB transmission; a second index indication of the second SSB transmission, the second index indication being used for indicating a SSB index of a actually transmitted SSB within a SSB pattern corresponding to the second SSB transmission.

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

46. The method of claim 45, wherein, the secondary cell is the first cell. 47.An SSB triggering apparatus, comprising: 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; or, 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. 48.An SSB triggering apparatus, comprising: 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; or, 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. 49.An receiving-side device, comprising a transceiver and a processor, the transceiver being configured to: receive first indication information, the first indication information being used for triggering a first SSB transmission and scheduling a first downlink transmission; or, send second indication information, the second indication information being used for triggering a second SSB transmission and requesting a first UL grant. 50.An transmitting-side device, comprising a transceiver and a processor, the transceiver being configured to: send first indication information, the first indication information being used for triggering a first SSB transmission and scheduling a first downlink transmission; or, receive second indication information, the second indication information being used for triggering a second SSB transmission and requesting a first UL grant. 51.A computer readable storage medium, having stored thereon a computer program, the computer program being executed by a processor to implement the steps of the SSB triggering method according to any one of claims 1 to 29 or claims 30 to 46. 52.A computer program product stored in a storage medium, the computer program product being executed by at least one processor to implement the steps of the SSB triggering method according to any one of claims 1 to 29 or claims 30 to 46.

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