Wireless communication method, terminal device and network device

Abstract

The invention provides a wireless communication method, terminal equipment and network equipment. The method comprises: a terminal device receiving configuration information of an SSB sent by a network device, the SSB being an on-demand SSB; therefore, the terminal equipment can know the transmission position of the on-demand SSB, so that the operation related to the SSB can be conveniently executed.

Description

[0001] This application claims priority to PCT application number PCT / CN2024 / 111269, entitled “Method, terminal device and network device for wireless communication”, filed with the China Patent Office on August 9, 2024, the entire contents of which are incorporated by reference in this application. Technical Field

[0002] The present application relates to the field of communication technology, and more specifically, to a wireless communication method, terminal equipment and network equipment. Background Art

[0003] In order to support network energy saving (NES), the related art proposes to send synchronization signal block / physical broadcast channel block (SS / PBCH block, SSB) on demand, which is called on-demand SSB. How the terminal device performs operations related to on-demand SSB has become a problem that needs to be solved. Summary of the invention

[0004] The present application provides a wireless communication method, terminal equipment and network equipment. The following introduces various aspects involved in the present application.

[0005] In a first aspect, a method for wireless communication is provided, comprising: a terminal device receives configuration information of an SSB sent by a network device, wherein the SSB is an on-demand SSB.

[0006] In a second aspect, a method for wireless communication is provided, comprising: a network device sends configuration information of SSB to a terminal device, wherein the SSB is an on-demand SSB.

[0007] According to a third aspect, a terminal device is provided, comprising: a transceiver unit for receiving configuration information of an SSB sent by a network device, wherein the SSB is an on-demand SSB.

[0008] In a fourth aspect, a network device is provided, comprising: a transceiver unit, used to send SSB configuration information to a terminal device, wherein the SSB is an on-demand SSB.

[0009] In a fifth aspect, a terminal device is provided, comprising a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the terminal device executes the method described in the first aspect.

[0010] In a sixth aspect, a network device is provided, comprising a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the network device executes the method described in the second aspect.

[0011] In a seventh aspect, a device is provided, comprising a processor, configured to call a program from a memory so that the device executes a method as described in any one of the first aspect or the second aspect.

[0012] In an eighth aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect or the second aspect.

[0013] In a ninth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0014] In a tenth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0015] In an eleventh aspect, a computer program is provided, wherein the computer program enables a computer to execute the method as described in the first aspect or the second aspect.

[0016] In an embodiment of the present application, the network device sends configuration information of the on-demand SSB to the terminal device, so that the terminal device can know the transmission location of the on-demand SSB to facilitate the execution of SSB-related operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2 is a diagram showing an example of a system architecture of a wireless communication system applicable to an embodiment of the present application.

[0018] Figure 2 It is a schematic diagram of carrier aggregation applicable to an embodiment of the present application.

[0019] Figure 3 It is a schematic diagram of the development process of carrier aggregation applicable to the embodiments of the present application.

[0020] Figure 4 Schematic diagram of the structure of SSB applicable to the embodiment of the present application.

[0021] Figure 5 It is a schematic diagram of SSB beam scanning and SSB burst set sending timing applicable to an embodiment of the present application.

[0022] Figure 6 A flowchart of a wireless communication method provided in an embodiment of the present application.

[0023] Figure 7 The diagram is a schematic diagram of the time for configuring and activating a secondary cell applicable to an embodiment of the present application.

[0024] Figure 8 A resource diagram of the SSB and downlink channels applicable to an embodiment of the present application.

[0025] Fig. 9 A schematic diagram of the structure of a terminal device according to an embodiment of the present application.

[0026] Fig.10 A schematic diagram of the structure of a network device according to an embodiment of the present application.

[0027] Fig.11 A schematic diagram of a device for communication according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0029] Wireless communication system

[0030] Figure 1 1 is an example diagram of the system architecture of a wireless communication system 100 to which an embodiment of the present application can be applied. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide network coverage for a specific geographical area, and may communicate with the terminal device 120 located in the coverage area. The terminal device 120 may access a network, such as a wireless network, through the network device 110. Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0031] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided in the present application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0032] The terminal device in the embodiment of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a laptop, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the terminal device can be used to act as a base station. For example, the terminal device can act as a scheduling entity, which provides sidelink signals between terminal devices in vehicle to everything (V2X) or device to device (D2D). For example, a cellular phone and a car communicate with each other using a sidelink signal. Cellular phones and smart home devices communicate without relaying communication signals through a base station.

[0033] The network device in the embodiment of the present application may be a device for communicating with a terminal device. The network device may be, for example, an access network device or a wireless access network device. For example, the network device may be a base station. The base station may broadly cover the following various names, or be replaced with the following names: Node B, evolved Node B (eNB), next generation Node B (gNB), relay station, access point, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), home base station, network controller, access node, wireless node, access point (access point, AP), transmission node, transceiver node, base band unit (base band unit, BBU), remote radio unit (remote radio unit, RRU), active antenna unit (active antenna unit, AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc. The base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof.

[0034] Carrier aggregation (CA)

[0035] In order to meet the peak rate of a single terminal device and improve system capacity, CA technology can be used to increase the transmission bandwidth of the system. CA technology combines two or more carriers into a data channel to increase data capacity. Using the existing network spectrum, CA technology enables operators to provide higher uplink (UL) and downlink (DL) data rates, thereby improving network performance and ensuring a high-quality user experience.

[0036] In a 4G system (or LTE system), 2-5 LTE component carriers or component carriers (CCs) can be aggregated together to achieve a higher transmission bandwidth, such as a maximum transmission bandwidth of 100 MHz, thereby effectively improving the uplink and downlink transmission rates. Figure 2 As shown, five 20MHz carriers can be aggregated to form a 100MHz transmission bandwidth. The terminal device can decide how many carriers can be used simultaneously for uplink and downlink transmission based on its capabilities.

[0037] In the LTE system, CA technology supports continuous or non-continuous carrier aggregation, and the maximum available resources for each carrier are 110 resource elements (REs). Each terminal device uses an independent hybrid automatic repeat request (HARQ) entity on each carrier, and each RE can only be mapped to a specific carrier. The physical downlink control channel (PDCCH) on each carrier is independent of each other and can reuse the design of LTE Release-8 (Rel-8 / R8), that is, the PDCCH of each carrier can be used to allocate resources for the physical downlink shared channel (PDSCH) and physical uplink shared channel (PUSCH) of each carrier, or the PDCCH channel on one carrier can be used through the carrier indicator field (CIF) to schedule the allocation of uplink and downlink resources of multiple carriers.

[0038] In the 10th release of LTE (Rele-10 / R10), the number of carriers that can be aggregated is increased, for example, up to 5 carriers can be aggregated. In addition, carrier aggregation has been continuously evolved in subsequent releases, for example, Figure 3 As shown, in the 5G system, the capability of carrier aggregation is further enhanced.

[0039] The 5G system (or new radio (NR) system) is rooted in the protocol standards of LTE and Wi-Fi. It is a new RF interface and RF access network that uses the best technologies and methods in the LTE system to meet the new requirements of various standardization organizations. CA technology has made an important contribution to improving user data throughput in the LTE system, and will play an equally important role in the 5G system. In order to increase capacity, operators around the world are actively adding CA bands and functions. As an example, as shown in Table 1, different countries and regions have designed corresponding CA types and functions for different frequency bands.

[0040] Table 1

[0041]

[0042] After the CA technology was introduced from the 4G LTE Advanced protocol, it was initially an aggregation of 5 carriers, each with a bandwidth of 20MHz, and the total bandwidth after the 5 carriers were aggregated was 100MHz. Later, it developed to the aggregation of 32 carriers, and the total bandwidth after aggregation can reach 640MHz. With the development of communication technology, the number of carriers that can be aggregated in 5G systems has gradually increased to 16, and the bandwidth of each carrier is larger. The bandwidth of a single carrier in the Sub6G system is up to 100MHz, so that 16 carriers can be aggregated to form a bandwidth of 1.6GHz. The bandwidth of a single carrier in the millimeter wave band is up to 400MHz, so that 16 carriers can be aggregated to form a bandwidth of 6.4GHz.

[0043] As mentioned above, when multiple carriers are aggregated together to work, they need to cooperate with each other. Therefore, these carriers are divided into main carriers and auxiliary carriers. Among them, the main carrier is used to carry signaling and manage other carriers. The main carrier can also be called the primary cell (PCell). The auxiliary carrier is used to expand the bandwidth and enhance the rate. The main carrier can decide when to add and delete. The auxiliary carrier can also be called the secondary cell (SCell). The main and auxiliary carriers are relative to the terminal equipment. For different terminal equipment, the main carrier and auxiliary carrier used for their work may be different. In addition, the multiple carriers involved in the aggregation may not be limited to the same base station. For example, these carriers can come from adjacent base stations.

[0044] SSB

[0045] In the NR system, each SSB is used for initial access and synchronization. The SSB consists of three parts: primary synchronization signals (PSS), secondary synchronization signals (SSS), and physical broadcast channel (PBCH). For example, Figure 4 As shown in the SSB structure, SSB occupies a total of 4 OFDM symbols in the time domain and a total of 240 subcarriers, i.e., 20 physical resource blocks (PRBs), which are numbered from 0 to 239, in the frequency domain.

[0046] SSB is transmitted by beam scanning. Usually, multiple SSBs need to be sent in a cell to complete a beam scan so that the SSB covers the service range of the entire cell. The SSBs required to complete a beam scan can form an SSB burst set, or simply called an SSB burst. Usually, the transmission configuration of the SSB burst set in time, frequency or space is described by the pattern of the SSB burst set. For example, Figure 5 The SSB beam scanning and SSB burst set transmission time are shown, where: Figure 5 (a) in FIG. 1 shows the spatial beams for transmitting each SSB. Figure 5 (b) in FIG. 1 shows the time domain position of each SSB. In different frequency bands and configurations, the pattern of the SSB burst set may be different. For example, in different frequency bands, the maximum number of SSBs that may be included in an SSB burst set may be 4, 8, 64, etc., and different SSBs have different SSB indexes. Figure 5 It is taken as an example that an SSB burst set includes 8 SSBs, namely SSB 0 to SSB 7. As an example, Table 2 shows pattern information of SSB transmission under different sub-carrier spacings (sub-carrier space SCS) of SSB.

[0047] Table 2

[0048]

[0049]

[0050] The terminal device can obtain synchronization through the SSB sent by the primary cell and perform radio resource management (RRM) measurements. In order to save time and frequency resources and power consumption of the base station, SSB may not be transmitted in the secondary cell. However, in some cases, since the measurement requirements of the secondary cell are different from those of the primary cell, the secondary cell may also have SSB transmission.

[0051] Since the transmission of SSB by the terminal device will generate high energy consumption, for the purpose of energy saving, the SSB in the secondary cell should not be sent all the time, but should be sent on demand. In other words, the network equipment can configure SBB to be sent for a short time, that is, the SSB transmission on the secondary cell is only carried out for a period of time, which can be determined according to the needs of the terminal device. Such SSB is called on-demand SSB.

[0052] The transmission of SSB on demand is for specific terminal devices. The network device determines whether to send SSB and how to send SSB according to the needs of certain terminal devices in the cell. Although the transmission of SSB on demand is for specific terminal devices, the transmission of SSB on demand is carried out in the entire cell, that is, the transmission of SSB on demand is a behavior for the cell, or in other words, the transmission of SSB is a cell-level transmission. Therefore, the SSB sent to certain terminal devices may affect the communication of other terminal devices in the cell. Therefore, it is necessary for other terminal devices to know the transmission of SSB on demand in the secondary cell. These terminal devices include, for example, terminal devices that support SSB on demand, such as terminal devices that include SSB on demand services or terminal devices that do not provide SSB on demand services, but do not include terminal devices that do not support SSB on demand, because terminal devices that do not support SSB on demand cannot know that there may be SSB transmissions at these resource locations.

[0053] Here, the terminal device supporting on-demand SSB may be, for example, a terminal device supporting a higher protocol version, such as a terminal device in Release 19 and later versions in NR; the terminal device not supporting on-demand SSB may be, for example, a terminal device supporting a lower protocol version, such as a terminal device in Release 18 and earlier versions in NR. In addition, the terminal device serving on-demand SSB means that the transmission of the on-demand SSB is triggered for the terminal device, that is, the on-demand SSB may be used for access and / or synchronization of the terminal device, but since the on-demand SSB will be transmitted throughout the cell, the transmission of the SSB will also affect other terminal devices supporting on-demand SSB, and other terminal devices may not currently have the need to use the on-demand SSB for access and / or synchronization, etc.

[0054] To this end, an embodiment of the present application provides a method for wireless communication, in which a network device sends configuration information of an on-demand SSB to a terminal device, so that the terminal device can know the transmission location of the on-demand SSB to facilitate the execution of SSB-related operations.

[0055] Combine the following Figure 6 , the embodiments of the present application are introduced in detail.

[0056] Figure 6 A flowchart of a wireless communication method provided in an embodiment of the present application. Figure 6 The method 600 shown may be executed by a terminal device and a network device.

[0057] See also Figure 6 , in step 610, the network device sends SSB configuration information to the terminal device.

[0058] Accordingly, in step 620, the terminal device receives the SSB configuration information sent by the network device.

[0059] In some implementations, the configuration information of the SSB may be carried in the configuration information of the secondary cell; or, the configuration information of the SSB may be carried in the activation indication information of the secondary cell (for example, carried in media access control (MAC) signaling); or, the configuration information of the SSB may be sent to the terminal device independently of the above information, for example, carried in radio resource control (RRC) signaling, MAC signaling (for example, MAC CE), multicast signaling or broadcast signaling that is independent of the transmission of the above information and sent to the terminal device, and the multicast signaling and the broadcast signaling may be, for example, high-layer signaling.

[0060] As an example, the terminal device receives the configuration information of the secondary cell sent by the network device, and includes the configuration information of the SSB in the configuration information of the secondary cell. The configuration information of the secondary cell is used to configure the corresponding secondary cell for the terminal device, and may include information such as the frequency of the secondary cell, and carry the configuration information of the SSB at the same time. That is to say, the network device configures the transmission parameters of the SSB while configuring the secondary cell for the terminal device.

[0061] In the following, the SSB described is all on-demand SSB.

[0062] Figure 7 The configuration and activation time of the secondary cell is shown. Among them, the configuration and activation of the SSB are associated with the configuration and activation process of the secondary cell. The network device can configure the secondary cell for the terminal device, for example, by sending the configuration information of the secondary cell to the terminal device through RRC signaling. Of course, the network device can configure multiple secondary cells for the terminal device respectively. When the terminal device needs to use a secondary cell, the network device can instruct to activate the secondary cell, for example, the network device sends the activation indication information of the secondary cell to the terminal device through MAC CE (or the activation signaling or activation command of the secondary cell). Optionally, after receiving the activation signaling of the secondary cell, the terminal device can perform channel detection and report the corresponding channel state information (CSI). The reporting of CSI can indicate that the activation process of the secondary cell is completed. After the secondary cell is activated, data can be transmitted between the network device and the terminal device through the secondary cell.

[0063] The following describes the configuration information of SSB.

[0064] In some implementations, the configuration information of the SSB includes SSB resource information that can be used to transmit the SSB, and the SSB resource information includes, for example, one or more of the following: frequency information of the SSB; time domain information of the SSB burst set; information on the SSB position in the SSB burst set used for actually transmitting the SSB; period information of the SSB; subcarrier spacing of the SSB; bandwidth of the SSB; downlink transmit power of the SSB; and a cell identifier (e.g., a cell identifier of a secondary cell).

[0065] Among them, the frequency information of the SSB can be used to determine the location of the frequency domain resources occupied by the SSB. For example, the frequency information of the SSB includes the offset of the lowest frequency position of the SSB relative to the predetermined frequency, or includes the offset of the highest frequency position of the SSB relative to the predetermined frequency. Further, combined with the information of the bandwidth of the SSB, the location of the frequency domain resources occupied by the SSB can be determined.

[0066] The predetermined frequency may be determined, for example, based on: a specific frequency position in the system; and / or a certain frequency position of the SSB of the primary cell of the terminal device, such as the lowest frequency position or the highest frequency position of the SSB.

[0067] Among them, the specific frequency position in the system can be, for example, the position of point A of the system. Point A, as one of the important benchmark reference points in the system, is usually used for the allocation and marking of frequency domain resources. The position of the frequency domain resources used to transmit SSB in the primary cell is usually different from the position of the frequency domain resources used to transmit SSB in the secondary cell, but the frequency domain positions of the two are relatively close. As an example, the terminal device determines the lowest frequency position of the SSB in the secondary cell based on the lowest frequency position of the SSB in the primary cell. Since the offset between the lowest frequency position of the SSB in the secondary cell and the lowest frequency position of the SSB in the primary cell is usually not large, it can be represented by fewer bits, thereby saving bit overhead.

[0068] For terminal devices with the same primary cell, their secondary cells may be different. When the location of the SSB frequency domain resources is indicated by the lowest or highest frequency domain position of the secondary cell, different values ​​may be configured for different terminal devices. Therefore, the network device can send different SSB configuration information to each terminal device.

[0069] In some implementations, the SSB resource information is one of a plurality of SSB resource information included in the configuration information of the SSB, and the configuration information of the SSB further includes resource serial numbers corresponding to the plurality of SSB resource information. As an example, assuming that the configuration information of the SSB sent by the network device includes two possible transmission resources of the SSB, the corresponding resource serial numbers are #1 and #2, respectively, and the positions of the time domain and / or frequency domain corresponding to the two transmission resources may be different.

[0070] The SSB position used for actually transmitting the SSB in the above-mentioned SSB burst set can be used to determine the time domain position of the SSB in the SSB burst set. For example, the SSB position in the SSB burst set can be represented by instructions such as SSB position burst (ssb-PositionsInBurst). For another example, the SSB position used for actually transmitting the SSB in the SSB burst set can be the SSB position of the actual transmission SSB configured for the terminal device among multiple candidate SSB positions in the SSB burst set. In an embodiment of the present application, the SSB position includes, for example, an SSB index, or may also include a time unit (such as a time slot, a frame, etc.) where the SSB is located.

[0071] In some implementations, the information of the SSB position for actually transmitting the SSB in the SSB burst set includes an offset between the SSB position for actually transmitting the SSB in the SSB burst set and a predetermined SSB position.

[0072] The predetermined SSB position is, for example, the first SSB position among multiple SSB positions in the SSB burst set used for actually transmitting the SSB.

[0073] In some implementations, the information of the SSB position in the SSB burst set used for actual transmission of the SSB includes the information of the predetermined SSB position; or, the information of the SSB position in the SSB burst set used for actual transmission of the SSB does not include the information of the predetermined SSB position.

[0074] As an example, Figure 5 Taking the pattern of the SSB burst set in as an example, the SSB burst set includes multiple SSBs, and the corresponding SSB indexes are SSB 0 to SSB 7, respectively. The configuration information of the SSB carries information about the SSB position in the SSB burst set used for actual transmission of the SSB, which can be part of the SSB indexes in SSB 0 to SSB 7, such as SSB 2 to SSB 4. When representing SSB2 to SSB 4, taking the position of SSB2 as a reference, the index value offsets of SSB 2 to SSB4 relative to SSB 2 are 2-2=0, 3-2=1, and 4-2=2, respectively. In this way, the bit overhead can be reduced. Optionally, in order to further reduce the bit overhead, SSB 2 may not be represented, that is, SSB 2 is defaulted, and only the index value offsets of SSB3 and SSB4 relative to SSB2 are represented. The SSB index with an index value offset of 0 may be defaulted to be the first SSB index used for actual transmission of the SSB.

[0075] It can be understood that the SSB resource information that can be used to transmit SSB carried in the configuration information of SSB includes, for example, information on multiple candidate resources that can or can be used to transmit SSB, or in other words, these candidate resources are configured to transmit SSB. However, whether SSB is transmitted on these candidate resources can be determined based on other information. For example, the network device can send activation indication information to the terminal device to indicate the activation of SSB. If the activation indication information is used to indicate that SSB is activated on a resource among the above-mentioned candidate resources, SSB will be transmitted on the resource. Otherwise, there may be no SSB transmission on the resource. For another example, the network device can also send deactivation indication information to the terminal device to indicate the deactivation of SSB. The deactivation indication information is used to indicate the cessation of SSB transmission on these candidate resources.

[0076] In some implementations, the activation of the SSB is located before the activation indication information of the secondary cell (i.e., the activation time of the SSB is located before the time when the terminal device receives the activation indication information of the secondary cell); and / or, the activation of the SSB is located before the configuration information of the SSB (i.e., the activation time of the SSB is located before the time when the terminal device receives the configuration information of the SSB); and / or, the activation of the SSB is located after the activation indication information of the secondary cell (i.e., the activation time of the SSB is located after the time when the terminal device receives the activation indication information of the secondary cell); and / or, the activation of the SSB is located after the configuration information of the SSB (i.e., the activation time of the SSB is located after the time when the terminal device receives the configuration information of the SSB).

[0077] Continue to see Figure 7 , the activation time of SSB may be before phase 1, phase 1, phase 2, or phase 3. For example, the transmission time of the configuration information of SSB and the activation time of SSB may be in phase 1.

[0078] Optionally, when the activation of the SSB occurs before the configuration information of the secondary cell, the terminal device may cache the SSB received before the configuration information of the secondary cell, and after receiving the configuration information of the secondary cell, detect the cached SSB based on the above-mentioned SSB configuration information.

[0079] After obtaining the configuration information of SSB, the terminal device can know the resource information configured by the network device for the secondary cell for transmitting SSB. However, the terminal device also needs to know when the network device will send SSB on these resources, so as to detect SSB or perform other related operations based on SBB. To this end, the terminal device also needs to obtain the activation information of SSB. Among them, the activation information of SSB is used to determine the transmission time of SSB, that is, when SSB is activated.

[0080] In some implementations, the SSB configuration information sent by the network device may also include SSB activation information, that is, the SSB activation information is carried in the SSB configuration information; and / or, the activation information may be sent by the network device to the terminal device after the SSB configuration information; and / or, the activation information is pre-agreed.

[0081] In some implementations, the activation information includes one or more of the following: activation indication information for indicating SSB activation; deactivation indication information for indicating SSB deactivation; information on the start time of SSB transmission; information on the end time of SSB transmission; information on the transmission duration of SSB; secondary cell state (SCellState) information in the configuration information of the secondary cell; periodic information of SSB; information on SSB index (SSB index); and resource sequence number corresponding to the SSB resource information.

[0082] For example, assuming that the activation information is carried in the configuration information of the secondary cell sent by the network device, then when the terminal device receives the configuration information of the secondary cell, it can not only obtain the configuration information of the SSB, but also obtain the activation information of the SSB. Taking the activation information as the activation indication information or deactivation indication information of the SSB as an example, if the configuration information of the SSB carries the activation indication information of the SSB, the terminal device can determine that the SSB is activated when the configuration information of the SSB is received; if the configuration information of the SSB carries the deactivation indication information of the SSB, the terminal device can determine that the SSB is activated when the configuration information of the SSB is received; if the configuration information of the SSB carries the deactivation indication information of the SSB, the terminal device can determine that the SSB is not activated when the configuration information of the SSB is received.

[0083] In the embodiments of the present application, the SSB activation may refer to, for example, that the SSB has been, is being, or will be activated; similarly, the SSB deactivation may refer to, for example, that the SSB has been, is being, or will be deactivated.

[0084] For another example, assuming that the activation information includes the transmission start time of the SSB, the terminal device can know at what time the SSB starts to transmit based on the transmission start time of the SSB. Optionally, the transmission start time of the SSB is determined based on one or more of the following: the time when the terminal device receives the configuration information of the SSB; the first resource available for transmitting the SSB after the terminal device receives the configuration information of the SSB; the first resource used for actually transmitting the SSB after the terminal device receives the configuration information of the SSB; the first resource available for transmitting the SSB after a preset time has passed since the terminal device received the configuration information of the SSB; the first resource used for actually transmitting the SSB after a preset time has passed since the terminal device received the configuration information of the SSB; the first resource used for actually transmitting the SSB in the SSB burst set after a preset time has passed since the terminal device received the configuration information of the SSB; the time when the terminal device receives the activation indication information of the SSB; the first resource available for transmitting the SSB after the time when the terminal device sends the feedback information; the first resource used for actually transmitting the SSB after the time when the terminal device sends the feedback information; the first resource used for actually transmitting the SSB in the SSB burst set after the time when the terminal device sends the feedback information.

[0085] The feedback information includes, for example, feedback information of the SSB configuration information or feedback information of the activation information.

[0086] The preset duration may be, for example, pre-agreed (such as specified by a protocol), or the preset duration may be sent by a network device (such as notifying a terminal device through high-level signaling). The setting of the preset duration may, for example, take into account the situation where there may be a synchronization error between the primary cell and the secondary cell transmitting the SSB when the primary cell sends the activation information to the terminal device, such as setting the preset duration based on the synchronization error. As an example, the preset duration may be 3 times the number of time slots in each subframe.

[0087] Here, the first resource available for transmitting SSB may be, for example, a resource corresponding to the first SSB index in the SSB burst set, or the first SSB position among multiple candidate SSB positions, where the multiple candidate SSB positions may be determined, for example, based on the SSB resource information carried in the configuration information of the SSB; and / or, based on a plurality of pre-agreed candidate SSB positions for transmitting SSB, for example, the protocol specifies certain time units (such as certain time slots) as candidate SSB positions that can be used for transmitting SSB (or, SSB burst set). The first resource for actually transmitting SSB may be, for example, the first SSB position among the multiple SSB positions for actually transmitting SSB in the SSB burst set carried in the aforementioned configuration information of the SSB.

[0088] Considering that the detection of SSB requires some time, in order to effectively indicate the transmission start time of SSB, optionally, the time granularity used to represent the preset duration is greater than or equal to the time granularity used to represent the SSB resource information. As an example, the time granularity used to represent the preset duration is a time slot or a frame. Optionally, the time granularity of the SSB resource information can be a time slot, for example, the transmission resources of SSB can be configured as time slot 1, time slot 2, time slot 3, time slot 4 and time slot 5.

[0089] For another example, assuming that the activation information includes the transmission end time of the SSB, the terminal device can know when the SSB stops transmitting based on the transmission end time of the SSB. Optionally, the transmission end time of the SSB is determined based on one or more of the following: the reporting time of the measurement report of the terminal device; the time when the terminal device receives the deactivation indication information of the SSB; the time when the terminal device sends feedback information of the deactivation indication information of the SSB; the time when the terminal device receives the deactivation indication information of the secondary cell.

[0090] Since the end time of SSB may be associated with the measurement report generated by the terminal device based on the SSB measurement result, the end time of SSB can be determined based on the reporting time of the measurement report, for example, a certain time position before or after the reporting time of the measurement report is the transmission end time of SSB. Since the terminal device has reported the measurement report, there is no need to detect SSB, and the transmission of SSB can be stopped. Here, the measurement report, for example, includes the measurement results of RRM measurements performed by the terminal device based on SSB, including but not limited to the measurement results of parameters such as reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), and signal to interference noise ratio (SINR). In addition, the measurement result can be, for example, a measurement result at the layer 3 (L3) cell level, a measurement result at the layer 3 beam level, a measurement result at the layer 1 (L1) cell level, or a measurement result at the layer 1 beam level.

[0091] Of course, the above-mentioned SSB transmission start time, transmission end time, transmission duration, etc. can also be expressed in absolute time or relative time. For example, the transmission start time and / or transmission end time can be expressed by the corresponding absolute time (timestamp) or the time offset relative to a specific time.

[0092] The time granularity used to represent the above-mentioned transmission start time, transmission end time, transmission duration, preset duration, etc., for example, includes one or more of the following: symbol, half time slot, time slot, or frame.

[0093] Since the time granularity and the like are related to the subcarrier spacing, the subcarrier spacing used to determine the time granularity can, optionally, be determined based on one or more of the following: the subcarrier spacing carried in the SSB configuration information; the subcarrier spacing used to transmit the SSB configuration information; the subcarrier spacing of the SSB of the primary cell; the subcarrier spacing of the secondary cell.

[0094] For another example, assuming that the activation information includes the transmission duration of the SSB, the terminal device can determine which segment of the transmission resources configured for the SSB is transmitting the SSB based on the transmission start time of the SSB and the transmission duration. Optionally, the transmission duration of the SSB is determined based on one or more of the following: the length of the transmission duration; the length of the timer used to record the transmission duration; the number of cycles of the SSB transmission. Among them, since the information on the number of cycles of the SSB transmission is relatively small compared to other time information, the number of bits required to represent the number of cycles is also small, thereby saving the load in the first information.

[0095] For another example, assuming that the activation information is secondary cell state (SCellState) information, the terminal device can use the secondary cell state information to determine whether the SSB is activated when receiving the configuration information sent by the network device. Wherein, when the secondary cell state information is configured as activated, it is used to indicate that the terminal device activates the SSB when receiving the configuration information; or, when the secondary cell state information is configured as deactivated, it is used to indicate that the terminal device does not activate the SSB when receiving the configuration information.

[0096] Usually, the configuration information of the secondary cell carries the secondary cell status information. When the secondary cell status information is indicated as activated, it means that the secondary cell is activated immediately when the secondary cell configuration information is received. Otherwise, it means that the secondary cell will not be activated immediately, but will be activated only when the network device sends the activation indication information of the secondary cell. Here, the secondary cell status information can be reused to indicate whether the SSB is activated immediately, wherein when the secondary cell status information is indicated as activated, it means that the secondary cell is activated immediately when the secondary cell configuration information is received, and the transmission of the SSB can also be activated together.

[0097] In some implementations, method 600 further includes, the terminal device sends feedback information of activation information of SSB to the network device; accordingly, the network device receives the feedback information sent by the terminal device. The feedback information may be, for example, HARQ-ACK, and the feedback information is used to trigger the network device to send SSB, that is, after receiving the feedback information for the activation information sent by the terminal device, the network device sends SSB to the terminal device. After the network device receives the feedback information for the activation information sent by the terminal device, it indicates that the terminal device has known that there will be SSB to be transmitted at the position indicated by the activation information, so the network device can send SSB to the terminal device at the position indicated by the activation information.

[0098] In some implementations, the method 600 further includes, in some implementations, the method 600 further includes, the terminal device sends feedback information of the configuration information of the SSB to the network device; accordingly, the network device receives the feedback information sent by the terminal device. Wherein, in the case where the configuration information of the SSB is carried in MAC signaling, the feedback information is, for example, the HARQ-ACK of the configuration information of the SSB; or, in the case where the configuration information of the SSB is carried in RRC signaling, the feedback information is, for example, the uplink response of the RRC signaling.

[0099] In some implementations, when the terminal device detects SSB at the location indicated by the activation information, the terminal device performs an operation related to SSB. If no SSB is detected, the operation is not performed. At this time, the terminal device may not be a terminal device for SSB service, that is, the SSB currently transmitted in the secondary cell is not triggered for the terminal device. The detection here, for example, includes matching and other related operations. If the match is successful, it means that there is SSB transmission on the resource. If the match is not successful, it means that there is no SSB transmission on the resource.

[0100] In some implementations, the method 600 may further include, in one or more of the following cases, the terminal device determines that the SSB is deactivated: the terminal device receives deactivation indication information of the SSB; the timer for recording the transmission duration of the SSB times out; the terminal device receives a new SSB activation indication. Here, the terminal device may include, for example, all terminal devices supporting on-demand SSB in the secondary cell. When determining that the SSB is deactivated, the terminal device may stop performing operations related to the SSB.

[0101] In some implementations, method 600 may also include: the terminal device performs SSB-related operations based on the SSB configuration information; and / or the terminal device performs SSB-related operations based on the above-mentioned activation information, such as activation indication information sent by the network device to indicate SSB activation.

[0102] Among them, the operations related to SSB include, for example: detecting SSB; and / or, performing puncturing operations on channels (such as data channels and / or control channels) based on SSB. Among them, data channels include, for example, downlink channels such as PDSCH, and control channels include, for example, downlink channels such as PDCCH. Of course, for the side link (SL), the data channel may also include uplink channels such as physical uplink shared channel (PUSCH), and the control channel may also include uplink channels such as physical uplink control channel (PUCCH).

[0103] The SSB detection (or SSB measurement) performed by the terminal device may be, for example, the aforementioned RRM measurement, such as RSRP, RSRQ, and SNR measurement. For terminal devices that need to use on-demand SSB for detection, the configuration information of SSB needs to be notified to these terminal devices so that these terminal devices can receive the on-demand SSB at the correct resource location.

[0104] The puncturing operation performed by the terminal device is, for example, an operation in the rate matching process. In a wireless communication system, rate matching is a process for adjusting the data rate to match the transmission capacity of the physical layer. In the rate matching process, a series of processing (including puncturing) is required on the transport block (TB), and its length is adjusted to adapt to the transmission capacity of the channel through the rate matching algorithm.

[0105] As mentioned above, in the NR system, downlink channels such as PDCCH, PDSCH and other channels may be transmitted together with SSB in each time slot. Figure 8 As shown, the horizontal axis is the time axis and the vertical axis is the frequency axis. In each time slot, for example, 1ms, PDSCH may be transmitted on the symbols on the left and right sides of the SSB, and data may also be transmitted on the frequencies on the upper and lower sides of the SSB. Otherwise, these frequencies are not used, resulting in a waste of resources. Taking 15kHz for each subcarrier as an example, 240 subcarriers are approximately several megabytes of bandwidth, which is less than the frequency resources that can be scheduled in the system. In order to make full use of frequency resources, downlink channel transmission will be scheduled near the frequency resources of the symbols occupied by the SSB.

[0106] If there is a conflict between the transmission resources of SSB and the transmission resources of PDSCH (or scheduling resources), for example, all or part of the SSB is being transmitted on the transmission resources of PDSCH, then the PDSCH can be punctured based on this part of the conflicting resources, that is, PDSCH may not be transmitted on this part of the conflicting resources but SSB may be transmitted.

[0107] The transmission of on-demand SSB is not periodic, but is transmitted within a period of time, and only some terminal devices can receive the signaling indicating the start or end of the transmission of on-demand SSB. Currently, it is impossible to determine which terminal devices can receive the signaling. Since the detection of on-demand SSB is a capability of some terminal devices (terminal devices that support on-demand SSB), no matter how the signaling indicating the start or end of the transmission of on-demand SSB is designed, other terminal devices, such as terminal devices that do not support on-demand SSB, cannot receive it. Therefore, the downlink channels of these terminal devices should not be scheduled to resources that overlap with the on-demand SSB, otherwise these terminal devices will not puncture the downlink channels, resulting in decoding errors.

[0108] For terminal devices that support on-demand SSB, since the transmission of on-demand SSB is for specific terminal devices, the resources near the on-demand SSB should not be limited to the use of only the specific terminal device. If the terminal device does not need to transmit data, then this part of the resources near the on-demand SSB is wasted, so other terminal devices that support on-demand SSB should not be restricted from using this part of resources. In addition, limiting this part of resources to only terminal devices that are allowed to use on-demand SSB services also limits the flexibility of scheduling.

[0109] In order to enable other terminal devices that support on-demand SSB to use resources near the on-demand SSB for channel transmission, other terminal devices should also know the transmission status of the on-demand SSB to facilitate puncturing of channels that have resource conflicts with the on-demand SSB.

[0110] To this end, these terminal devices can puncture the corresponding channels based on the SSB configuration information sent by the network device, thereby preventing the on-demand SSB transmission of other terminal devices from affecting their channel transmission.

[0111] In method 600, the terminal device performs an operation related to the SSB based on the configuration information of the SSB, for example, the terminal device can perform related operations such as detecting the SSB or performing the above-mentioned punching operation based on the resource location that can be used to transmit the SSB indicated by the configuration information of the SSB. The terminal device performs an operation related to the SSB based on the activation indication information of the SSB, for example, the terminal device can perform related operations such as detecting the SSB or performing the above-mentioned punching operation based on the resource location where the network device sends the SSB indicated by the activation indication information.

[0112] As an example, when a network device triggers the transmission of SSB for a certain terminal device, the terminal device may perform SSB-related operations based on the activation indication information sent by the network device to indicate the activation of SSB; or, when the network device triggers the transmission of SSB for other terminal devices other than the terminal device, the terminal device may perform SSB-related operations based on the configuration information of SSB.

[0113] Assume that both terminal device 1 and terminal device 2 in the secondary cell support on-demand SSB, and the network device configures the above-mentioned SSB resource information for terminal device 1 and terminal device 2. If the SSB currently sent by the network device is triggered for terminal device 1, for example, terminal device 1 may currently have the need to use the SSB for access and / or synchronization, then when terminal device 1 receives the configuration information of the SSB sent by the network device, it may not puncture the channel, but when the network device subsequently sends the activation indication information of the SSB, it will puncture the channel transmitted near the resource location of the SSB activation indicated by the activation indication information. Since the SSB currently sent by the network device is not triggered for terminal device 2, for example, terminal device 2 may not currently have the need to use SSB, terminal device 2 may not know that the network device has triggered the transmission of SSB for terminal device 1, but in order to avoid the SSB affecting its channel transmission, therefore, when terminal device 2 receives the configuration information of the SSB sent by the network device, it can start to puncture the corresponding channel based on the resource location indicated by the SSB resource information in the configuration information of the SSB. That is to say, terminal device 2 can directly puncture the channel that has resource conflicts with possible SSB transmission without considering the actual SSB transmission situation, because in the actual transmission situation there may be no time to notify terminal device 2 when to activate SSB, that is, when to start SSB transmission.

[0114] Combination of the above Figures 1 to 8 , describes the method embodiment of the present application in detail, and the following is combined with Figures 9 to 11, describes the device embodiment of the present application in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0115] Fig. 9 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application. Fig. 9 The terminal device 900 shown may include a transceiver unit 910. The transceiver unit 910 is used to receive configuration information of an SSB sent by a network device, where the SSB is an on-demand SSB.

[0116] In some implementations, the SSB configuration information is carried by one or more of the following: configuration information of the secondary cell, activation indication information of the secondary cell, RRC signaling, MAC signaling, multicast signaling, and broadcast signaling.

[0117] In some implementations, the configuration information of the SSB includes SSB resource information that can be used to transmit the SSB, and the SSB resource information includes one or more of the following: frequency information of the SSB; information on the SSB position in the SSB burst set used for actually transmitting the SSB; period information of the SSB; subcarrier spacing of the SSB; bandwidth of the SSB; downlink transmit power of the SSB; secondary cell identifier; and resource sequence numbers corresponding to multiple SSB resource information included in the configuration information of the SSB.

[0118] In some implementations, the information of the SSB position in the SSB burst set used for actually transmitting the SSB includes an offset between the SSB position in the SSB burst set used for actually transmitting the SSB and a predetermined SSB position.

[0119] In some implementations, the SSB position includes an SSB index.

[0120] In some implementations, the predetermined SSB position is the first SSB position among multiple SSB positions in the SSB burst set used to actually transmit the SSB.

[0121] In some implementations, the information of the SSB position in the SSB burst set used for actual transmission of the SSB includes the information of the predetermined SSB position; or, the information of the SSB position in the SSB burst set used for actual transmission of the SSB does not include the information of the predetermined SSB position.

[0122] In some implementations, the information of the SSB position in the SSB burst set used to actually transmit the SSB also includes the position of the predetermined SSB position among multiple SSB positions located in the same time slot.

[0123] In some implementations, the terminal device also includes a processing unit 920, which is used to: obtain activation information of the SSB, and the activation information is obtained based on one or more of the following methods: the activation information of the SSB is carried in the configuration information of the SSB; and / or, the activation information is sent to the terminal device by the network device after the configuration information of the SSB; and / or, the activation information is pre-agreed.

[0124] In some implementations, the activation information includes one or more of the following: activation indication information for indicating SSB activation; deactivation indication information for indicating SSB deactivation; information on the transmission start time of the SSB; information on the transmission end time of the SSB; information on the transmission duration of the SSB; secondary cell status information in the configuration information of the secondary cell; periodic information of the SSB; and information on the SSB index.

[0125] In some implementations, the transmission start time of the SSB is determined based on one or more of the following: the time when the terminal device receives the configuration information of the SSB; the first resource that can be used to transmit the SSB after the terminal device receives the configuration information of the SSB; the first resource for actually transmitting the SSB after the terminal device receives the configuration information of the SSB; the first resource that can be used to transmit the SSB after a preset period of time has passed since the terminal device received the configuration information of the SSB; the first resource for actually transmitting the SSB after the preset period of time has passed since the terminal device received the configuration information of the SSB; the first resource for actually transmitting the SSB in an SSB burst set after the preset period of time has passed since the terminal device received the configuration information of the SSB; the time when the terminal device receives activation indication information of the SSB; the first resource that can be used to transmit the SSB after the terminal device sends feedback information, the feedback information including feedback information of the configuration information of the SSB or feedback information of the activation information; the first resource for actually transmitting the SSB after the terminal device sends the feedback information; the first resource for actually transmitting the SSB in an SSB burst set after the terminal device sends the feedback information.

[0126] In some implementations, the preset duration is determined based on one or more of the following: the preset duration is notified to the terminal device by high-layer signaling; or the preset duration is pre-agreed.

[0127] In some implementations, the preset duration is three times the number of time slots in each subframe.

[0128] In some implementations, the transmission end time of the SSB is determined based on one or more of the following: the reporting time of the measurement report of the terminal device; the time when the terminal device receives the deactivation indication information of the SSB; the time when the terminal device sends feedback information of the deactivation indication information of the SSB; the time when the terminal device receives the deactivation indication information of the secondary cell.

[0129] In some implementations, the transmission duration of the SSB is determined based on one or more of the following: the length of the transmission duration; the length of a timer used to record the transmission duration; and the number of cycles of the SSB transmission.

[0130] In some implementations, the time granularity used to represent the transmission start time of the SSB, the transmission end time of the SSB, the transmission duration of the SSB, and the preset duration includes one or more of the following: symbol, half slot, slot, frame.

[0131] In some implementations, the subcarrier spacing used to determine the time granularity is determined based on one or more of the following: the subcarrier spacing carried in the configuration information of the SSB; the subcarrier spacing used to transmit the configuration information of the SSB; the subcarrier spacing of the SSB of the primary cell; the subcarrier spacing of the secondary cell.

[0132] In some implementations, when the secondary cell status information is configured to be activated, it is used to indicate that the terminal device activates the SSB when receiving the configuration information of the SSB; or, when the secondary cell status information is configured to be deactivated, it is used to indicate that the terminal device does not activate the SSB when receiving the configuration information of the SSB.

[0133] In some implementations, the transceiver unit 910 is further used to: send feedback information to the network device, the feedback information is used to trigger the network device to send the SSB, and the feedback information includes feedback information of configuration information or feedback information of activation information of the SSB.

[0134] In some implementations, when the configuration information of the SSB is carried in MAC signaling, the feedback information is the HARQ-ACK of the configuration information of the SSB; or, when the configuration information of the SSB is carried in RRC signaling, the feedback information is the uplink response of the RRC signaling.

[0135] In some implementations, the activation of the SSB is located before the activation indication information of the secondary cell; and / or, the activation of the SSB is located before the configuration information of the SSB; and / or, the activation of the SSB is located after the activation indication information of the secondary cell; and / or, the activation of the SSB is located after the configuration information of the SSB.

[0136] In some implementations, the terminal device also includes a processing unit 920, which is used to: perform operations related to the SSB based on the configuration information of the SSB; and / or perform operations related to the SSB based on the activation information of the SSB.

[0137] In some implementations, the terminal device also includes a processing unit 920, which is used to: when the network device triggers the transmission of SSB for the terminal device, perform SSB-related operations based on activation indication information sent by the network device to indicate SSB activation; or, when the network device triggers the transmission of SSB for other terminal devices other than the terminal device, perform SSB-related operations based on configuration information of the SSB sent by the network device.

[0138] In some implementations, the SSB-related operations include: detecting the SSB; and / or performing a puncturing operation on the channel based on the SSB.

[0139] Fig. 9 The dashed lines shown in the figure indicate that the unit or module is optional. Fig. 9 The transceiver unit 910 shown in the figure may be, for example, a transceiver 1130, and the processing unit 920 may be, for example, a processor 1110. In addition, the terminal device 900 may also include a memory 1120, for details, see Fig.11 .

[0140] Fig.10 A schematic diagram of the structure of a network device provided in an embodiment of the present application. Fig.10 The network device 1000 shown may include a transceiver unit 1010. The transceiver unit 1010 is used to send configuration information of an SSB to a terminal device, where the SSB is an on-demand SSB.

[0141] In some implementations, the SSB configuration information is carried by one or more of the following: configuration information of the secondary cell, activation indication information of the secondary cell, RRC signaling, MAC signaling, multicast signaling, and broadcast signaling.

[0142] In some implementations, the configuration information of the SSB includes SSB resource information that can be used to transmit the SSB, and the SSB resource information includes one or more of the following: frequency information of the SSB; information on the SSB position in the SSB burst set used for actually transmitting the SSB; period information of the SSB; subcarrier spacing of the SSB; bandwidth of the SSB; downlink transmit power of the SSB; secondary cell identifier; and resource sequence numbers corresponding to multiple SSB resource information included in the configuration information of the SSB.

[0143] In some implementations, the information of the SSB position in the SSB burst set used for actually transmitting the SSB includes an offset between the SSB position in the SSB burst set used for actually transmitting the SSB and a predetermined SSB position.

[0144] In some implementations, the SSB position includes an SSB index.

[0145] In some implementations, the predetermined SSB position is the first SSB position among multiple SSB positions in the SSB burst set used to actually transmit the SSB.

[0146] In some implementations, the information of the SSB position in the SSB burst set used for actual transmission of the SSB includes the information of the predetermined SSB position; or, the information of the SSB position in the SSB burst set used for actual transmission of the SSB does not include the information of the predetermined SSB position.

[0147] In some implementations, the information of the SSB position in the SSB burst set used to actually transmit the SSB also includes the position of the predetermined SSB position among multiple SSB positions located in the same time slot.

[0148] In some implementations, the SSB configuration information also includes SSB activation information; and / or, the activation information is sent by the network device to the terminal device after the SSB configuration information; and / or, the activation information is pre-agreed.

[0149] In some implementations, the activation information includes one or more of the following: activation indication information for indicating SSB activation; deactivation indication information for indicating SSB deactivation; information on the transmission start time of the SSB; information on the transmission end time of the SSB; information on the transmission duration of the SSB; secondary cell status information in the configuration information of the secondary cell; periodic information of the SSB; and information on the SSB index.

[0150] In some implementations, the transmission start time of the SSB is determined based on one or more of the following: the time when the terminal device receives the configuration information of the SSB; the first resource that can be used to transmit the SSB after the terminal device receives the configuration information of the SSB; the first resource for actually transmitting the SSB after the terminal device receives the configuration information of the SSB; the first resource that can be used to transmit the SSB after a preset period of time has passed since the terminal device received the configuration information of the SSB; the first resource for actually transmitting the SSB after the preset period of time has passed since the terminal device received the configuration information of the SSB; the first resource for actually transmitting the SSB in an SSB burst set after the preset period of time has passed since the terminal device received the configuration information of the SSB; the time when the terminal device receives activation indication information of the SSB; the first resource that can be used to transmit the SSB after the terminal device sends feedback information, the feedback information including feedback information of the configuration information of the SSB or feedback information of the activation information; the first resource for actually transmitting the SSB after the terminal device sends the feedback information; the first resource for actually transmitting the SSB in an SSB burst set after the terminal device sends the feedback information.

[0151] In some implementations, the preset duration is determined based on one or more of the following: the preset duration is notified to the terminal device by high-layer signaling; or the preset duration is pre-agreed.

[0152] In some implementations, the preset duration is three times the number of time slots in each subframe.

[0153] In some implementations, the transmission end time of the SSB is determined based on one or more of the following: the reporting time of the measurement report of the terminal device; the time when the terminal device receives the deactivation indication information of the SSB; the time when the terminal device sends feedback information of the deactivation indication information of the SSB; the time when the terminal device receives the deactivation indication information of the secondary cell.

[0154] In some implementations, the transmission duration of the SSB is determined based on one or more of the following: the length of the transmission duration; the length of a timer used to record the transmission duration; and the number of cycles of the SSB transmission.

[0155] In some implementations, the time granularity used to represent the transmission start time of the SSB, the transmission end time of the SSB, the transmission duration of the SSB, and the preset duration includes one or more of the following: symbol, half slot, slot, frame.

[0156] In some implementations, the subcarrier spacing used to determine the time granularity is determined based on one or more of the following: the subcarrier spacing carried in the configuration information of the SSB; the subcarrier spacing used to transmit the configuration information of the SSB; the subcarrier spacing of the SSB of the primary cell; the subcarrier spacing of the secondary cell.

[0157] In some implementations, when the secondary cell status information is configured to be activated, it is used to indicate that the terminal device activates the SSB when receiving the configuration information of the SSB; or, when the secondary cell status information is configured to be deactivated, it is used to indicate that the terminal device does not activate the SSB when receiving the configuration information of the SSB.

[0158] In some implementations, the transceiver unit 1010 is further used to: receive feedback information sent by the terminal device, the feedback information is used to trigger the network device to send the SSB, and the feedback information includes feedback information of configuration information or feedback information of activation information of the SSB.

[0159] In some implementations, when the configuration information of the SSB is carried in MAC signaling, the feedback information is the HARQ-ACK of the configuration information of the SSB; or, when the configuration information of the SSB is carried in RRC signaling, the feedback information is the uplink response of the RRC signaling.

[0160] In some implementations, the activation of the SSB is located before the activation indication information of the secondary cell; and / or, the activation of the SSB is located before the configuration information of the SSB; and / or, the activation of the SSB is located after the activation indication information of the secondary cell; and / or, the activation of the SSB is located after the configuration information of the SSB.

[0161] It can be understood that the transceiver unit 1010 can be, for example, a transceiver 1130. In addition, optionally, the network device 1000 further includes a processor 1110 and a memory 1120, for details, see Fig.11 .

[0162] Fig.11 It is a schematic structural diagram of a device for communication according to an embodiment of the present application. Fig.11 The dotted line shown in indicates that the unit or module is optional. The apparatus 1100 may be used to implement the method described in the above method embodiment. The apparatus 1100 may be, for example, a chip, a terminal device or a network device.

[0163] The device 1100 may include one or more processors 1110. The processor 1110 may support the device 1100 to implement the method described in the aforementioned method embodiment. The processor 1110 may be a general-purpose processor or a special-purpose processor. For example, the processor 1110 may be a central processing unit (CPU). Alternatively, the processor 1110 may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or may be any conventional processor, etc.

[0164] The apparatus 1100 may further include one or more memories 1120. The memory 1120 stores a program, which can be executed by the processor 1110, so that the processor 1110 executes the method described in the above method embodiment. The memory 1120 may be independent of the processor 1110, or may be integrated in the processor 1110.

[0165] The apparatus 1100 may further include a transceiver 1130. The processor 1110 may communicate with other devices or chips through the transceiver 1130. For example, the processor 1110 may transmit and receive data with other devices or chips through the transceiver 1130.

[0166] The embodiment of the present application also provides a communication system. The communication system includes the above-mentioned terminal device and network device. In some implementations, the system also includes other devices that interact with the terminal device and the network device.

[0167] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal device or a network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or the network device in each embodiment of the present application.

[0168] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0169] The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal device or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal device or network device in each embodiment of the present application.

[0170] It should be understood that the terms "system" and "network" in the embodiments of the present application can be used interchangeably. In addition, the terms used in the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of the present application and the accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0171] In the embodiments of the present application, the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0172] In the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0173] In the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

[0174] In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0175] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0176] In the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0177] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0178] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0179] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0180] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0181] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0182] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: The method comprises: The terminal device receives the configuration information of the synchronization signal broadcast channel block SSB sent by the network device, and the SSB is an on-demand SSB.

2. The method according to claim 1, characterized in that The configuration information of the SSB is carried by one or more of the following: configuration information of the secondary cell, activation indication information of the secondary cell, RRC signaling, MAC signaling, multicast signaling, and broadcast signaling.

3. The method according to claim 1 or 2, characterized in that: The SSB configuration information includes SSB resource information that can be used to transmit the SSB, and the SSB resource information includes one or more of the following: SSB frequency information; The SSB burst set is used to actually transmit the information of the SSB position of the SSB; SSB cycle information; Subcarrier spacing of SSB; Bandwidth of SSB; Downlink transmission power of SSB; Auxiliary cell identifier; The resource sequence number corresponding to the multiple SSB resource information included in the configuration information of the SSB.

4. The method according to claim 3, characterized in that The information of the SSB position used for actually transmitting the SSB in the SSB burst set includes the offset between the SSB position used for actually transmitting the SSB in the SSB burst set and the predetermined SSB position.

5. The method according to claim 4, characterized in that The SSB position includes an SSB index.

6. The method according to claim 4 or 5, characterized in that: The predetermined SSB position is the first SSB position among multiple SSB positions in the SSB burst set used for actually transmitting the SSB.

7. The method according to any one of claims 4 to 6, characterized in that The information of the SSB position used for actually transmitting the SSB in the SSB burst set includes the information of the predetermined SSB position; or, The information of the SSB position used for actually transmitting the SSB in the SSB burst set does not include the information of the predetermined SSB position.

8. The method according to any one of claims 4 to 7, characterized in that The information of the SSB position used for actually transmitting the SSB in the SSB burst set also includes the position of the predetermined SSB position among multiple SSB positions located in the same time slot.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises: The terminal device obtains activation information of the SSB, where the activation information is obtained based on one or more of the following methods: The activation information of the SSB is carried in the configuration information of the SSB; and / or, The activation information is sent by the network device to the terminal device after the configuration information of the SSB; and / or, The activation information is pre-agreed.

10. The method according to claim 9, characterized in that The activation information includes one or more of the following: Activation indication information used to indicate SSB activation; Deactivation indication information used to instruct SSB deactivation; Information on the start time of SSB transmission; Information on the end time of SSB transmission; Information on the duration of SSB transmissions; The secondary cell state information in the configuration information of the secondary cell; SSB cycle information; Information about SSB index.

11. The method according to claim 10, characterized in that The transmission start time of the SSB is determined based on one or more of the following: The time when the terminal device receives the configuration information of the SSB; the first resource available for transmitting the SSB after the terminal device receives the configuration information of the SSB; The first resource used for actually transmitting the SSB after the terminal device receives the configuration information of the SSB; The first resource that can be used to transmit the SSB after a preset time has passed since the terminal device received the configuration information of the SSB; The first resource used for actually transmitting the SSB after the preset time has passed since the terminal device received the configuration information of the SSB; The first resource used for actually transmitting the SSB in the SSB burst set after the preset time period has passed since the terminal device received the configuration information of the SSB; The time when the terminal device receives the SSB activation indication information; The first resource that can be used to transmit the SSB after the time when the terminal device sends feedback information, the feedback information including feedback information of configuration information or feedback information of activation information of the SSB; The first resource used for actually transmitting the SSB after the time when the terminal device sends the feedback information; The first resource used for actually transmitting SSB in the SSB burst set after the time when the terminal device sends the feedback information.

12. The method according to claim 11, characterized in that The preset duration is determined based on one or more of the following: The preset duration is notified to the terminal device by high-layer signaling; or, The preset duration is agreed in advance.

13. The method according to claim 11 or 12, characterized in that: The preset duration is three times the number of time slots in each subframe.

14. The method according to any one of claims 10 to 13, characterized in that The transmission end time of the SSB is determined based on one or more of the following: The reporting time of the measurement report of the terminal device; The time when the terminal device receives the SSB deactivation indication information; The time when the terminal device sends feedback information of SSB deactivation indication information; The time when the terminal device receives the deactivation indication information of the secondary cell.

15. The method according to any one of claims 10 to 14, characterized in that The transmission duration of the SSB is determined based on one or more of the following: the duration of the transmission; the length of a timer for recording the duration of the transmission; The number of SSB transmission cycles.

16. The method according to any one of claims 10 to 15, characterized in that The time granularity used to represent the transmission start time of the SSB, the transmission end time of the SSB, the transmission duration of the SSB, and the preset duration includes one or more of the following: symbol, half slot, slot, frame.

17. The method according to claim 16, characterized in that The subcarrier spacing used to determine the time granularity is determined based on one or more of the following: The subcarrier spacing carried in the configuration information of the SSB; A subcarrier spacing used to transmit configuration information of the SSB; Subcarrier spacing of the SSB of the primary cell; Subcarrier spacing of the secondary cell.

18. The method according to any one of claims 10 to 17, characterized in that When the secondary cell status information is configured to be activated, it is used to indicate that the terminal device activates the SSB when receiving the configuration information of the SSB; or, when the secondary cell status information is configured to be deactivated, it is used to indicate that the terminal device does not activate the SSB when receiving the configuration information of the SSB.

19. The method according to any one of claims 1 to 18, characterized in that The method further comprises: The terminal device sends feedback information to the network device, where the feedback information is used to trigger the network device to send the SSB, and the feedback information includes feedback information of configuration information or feedback information of activation information of the SSB.

20. The method according to claim 19, characterized in that When the configuration information of the SSB is carried in MAC signaling, the feedback information is the HARQ-ACK of the configuration information of the SSB; or, when the configuration information of the SSB is carried in RRC signaling, the feedback information is the uplink response of the RRC signaling.

21. The method according to any one of claims 1 to 20, characterized in that The activation of the SSB is located before the activation indication information of the secondary cell; and / or, The activation of the SSB precedes the configuration information of the SSB; and / or, The activation of the SSB is located after the activation indication information of the secondary cell; and / or, The activation of the SSB is located after the configuration information of the SSB.

22. The method according to any one of claims 1 to 21, characterized in that The method further comprises: The terminal device performs an operation related to the SSB based on the configuration information of the SSB; and / or, The terminal device performs SSB-related operations based on the SSB activation information.

23. The method according to any one of claims 1 to 22, characterized in that The method further comprises: In the case where the network device triggers the transmission of the SSB for the terminal device, the terminal device performs an operation related to the SSB based on the activation indication information sent by the network device for indicating the activation of the SSB; or, In the case where the network device triggers the transmission of SSB for other terminal devices other than the terminal device, the terminal device performs SSB-related operations based on the configuration information of the SSB sent by the network device.

24. The method according to claim 22 or 23, characterized in that The SSB-related operations include: Performing SSB testing; and / or, A puncturing operation is performed on the channel based on the SSB.

25. A method of wireless communication, characterized in that: The method comprises: The network device sends the configuration information of the synchronization signal broadcast channel block SSB to the terminal device, and the SSB is an on-demand SSB.

26. The method according to claim 25, characterized in that The configuration information of the SSB is carried by one or more of the following: configuration information of the secondary cell, activation indication information of the secondary cell, RRC signaling, MAC signaling, multicast signaling, and broadcast signaling.

27. The method according to claim 25 or 26, characterized in that The SSB configuration information includes SSB resource information that can be used to transmit the SSB, and the SSB resource information includes one or more of the following: SSB frequency information; The SSB burst set is used to actually transmit the information of the SSB position of the SSB; SSB cycle information; Subcarrier spacing of SSB; Bandwidth of SSB; Downlink transmission power of SSB; Auxiliary cell identifier; The resource sequence number corresponding to the multiple SSB resource information included in the configuration information of the SSB.

28. The method according to claim 27, characterized in that The information of the SSB position used for actually transmitting the SSB in the SSB burst set includes the offset between the SSB position used for actually transmitting the SSB in the SSB burst set and the predetermined SSB position.

29. The method according to claim 28, characterized in that The SSB position includes an SSB index.

30. The method according to claim 28 or 29, characterized in that The predetermined SSB position is the first SSB position among multiple SSB positions in the SSB burst set used for actually transmitting the SSB.

31. The method according to any one of claims 28 to 30, characterized in that The information of the SSB position used for actually transmitting the SSB in the SSB burst set includes the information of the predetermined SSB position; or, The information of the SSB position used for actually transmitting the SSB in the SSB burst set does not include the information of the predetermined SSB position.

32. The method according to any one of claims 28 to 31, characterized in that The information of the SSB position used for actually transmitting the SSB in the SSB burst set also includes the position of the predetermined SSB position among multiple SSB positions located in the same time slot.

33. The method according to any one of claims 25 to 32, characterized in that The SSB configuration information also includes SSB activation information; and / or, The activation information is sent by the network device to the terminal device after the configuration information of the SSB; and / or, The activation information is pre-agreed.

34. The method according to claim 33, characterized in that The activation information includes one or more of the following: Activation indication information used to indicate SSB activation; Deactivation indication information used to instruct SSB deactivation; Information on the start time of SSB transmission; Information on the end time of SSB transmission; Information on the duration of SSB transmissions; The secondary cell state information in the configuration information of the secondary cell; SSB cycle information; Information about SSB index.

35. The method according to claim 34, characterized in that The transmission start time of the SSB is determined based on one or more of the following: The time when the terminal device receives the configuration information of the SSB; the first resource available for transmitting the SSB after the terminal device receives the configuration information of the SSB; The first resource used for actually transmitting the SSB after the terminal device receives the configuration information of the SSB; The first resource that can be used to transmit the SSB after a preset time has passed since the terminal device received the configuration information of the SSB; The first resource used for actually transmitting the SSB after the preset time has passed since the terminal device received the configuration information of the SSB; The first resource used for actually transmitting the SSB in the SSB burst set after the preset time period has passed since the terminal device received the configuration information of the SSB; The time when the terminal device receives the SSB activation indication information; The first resource that can be used to transmit the SSB after the time when the terminal device sends feedback information, the feedback information including feedback information of configuration information or feedback information of activation information of the SSB; The first resource used for actually transmitting the SSB after the time when the terminal device sends the feedback information; The first resource used for actually transmitting SSB in the SSB burst set after the time when the terminal device sends the feedback information.

36. The method according to claim 35, characterized in that The preset duration is determined based on one or more of the following: The preset duration is notified to the terminal device by high-layer signaling; or, The preset duration is agreed in advance.

37. The method according to claim 35 or 36, characterized in that The preset duration is three times the number of time slots in each subframe.

38. The method according to any one of claims 35 to 37, characterized in that The transmission end time of the SSB is determined based on one or more of the following: The reporting time of the measurement report of the terminal device; The time when the terminal device receives the SSB deactivation indication information; The time when the terminal device sends feedback information of SSB deactivation indication information; The time when the terminal device receives the deactivation indication information of the secondary cell.

39. The method according to any one of claims 34 to 38, characterized in that The transmission duration of the SSB is determined based on one or more of the following: the duration of the transmission; the length of a timer for recording the duration of the transmission; The number of SSB transmission cycles.

40. The method according to any one of claims 34 to 39, characterized in that The time granularity used to represent the transmission start time of the SSB, the transmission end time of the SSB, the transmission duration of the SSB, and the preset duration includes one or more of the following: symbol, half slot, slot, frame.

41. The method according to claim 40, characterized in that The subcarrier spacing used to determine the time granularity is determined based on one or more of the following: The subcarrier spacing carried in the configuration information of the SSB; A subcarrier spacing used to transmit configuration information of the SSB; Subcarrier spacing of the SSB of the primary cell; Subcarrier spacing of the secondary cell.

42. The method according to any one of claims 34 to 41, characterized in that When the secondary cell status information is configured to be activated, it is used to indicate that the terminal device activates the SSB when receiving the configuration information of the SSB; or, when the secondary cell status information is configured to be deactivated, it is used to indicate that the terminal device does not activate the SSB when receiving the configuration information of the SSB.

43. The method according to any one of claims 25 to 42, characterized in that The method further comprises: The network device receives feedback information sent by the terminal device, where the feedback information is used to trigger the network device to send the SSB, and the feedback information includes feedback information of configuration information or feedback information of activation information of the SSB.

44. The method according to claim 43, characterized in that When the configuration information of the SSB is carried in MAC signaling, the feedback information is the HARQ-ACK of the configuration information of the SSB; or, when the configuration information of the SSB is carried in RRC signaling, the feedback information is the uplink response of the RRC signaling.

45. The method according to any one of claims 25 to 44, characterized in that The activation of the SSB is located before the activation indication information of the secondary cell; and / or, The activation of the SSB precedes the configuration information of the SSB; and / or, The activation of the SSB is located after the activation indication information of the secondary cell; and / or, The activation of the SSB is located after the configuration information of the SSB.

46. ​​A terminal device, characterized in that: include: The transceiver unit is used to receive the configuration information of the synchronization signal broadcast channel block SSB sent by the network device, and the SSB is an on-demand SSB.

47. The terminal device according to claim 46, characterized in that: The configuration information of the SSB is carried by one or more of the following: configuration information of the secondary cell, activation indication information of the secondary cell, RRC signaling, MAC signaling, multicast signaling, and broadcast signaling.

48. The terminal device according to claim 46 or 47, characterized in that: The SSB configuration information includes SSB resource information that can be used to transmit the SSB, and the SSB resource information includes one or more of the following: SSB frequency information; The SSB burst set is used to actually transmit the information of the SSB position of the SSB; SSB cycle information; Subcarrier spacing of SSB; Bandwidth of SSB; Downlink transmission power of SSB; Auxiliary cell identifier; The resource sequence number corresponding to the multiple SSB resource information included in the configuration information of the SSB.

49. The terminal device according to claim 48, characterized in that: The information of the SSB position used for actually transmitting the SSB in the SSB burst set includes the offset between the SSB position used for actually transmitting the SSB in the SSB burst set and the predetermined SSB position.

50. The terminal device according to claim 49, characterized in that: The SSB position includes an SSB index.

51. The terminal device according to claim 49 or 50, characterized in that: The predetermined SSB position is the first SSB position among multiple SSB positions in the SSB burst set used for actually transmitting the SSB.

52. The terminal device according to any one of claims 49 to 51, characterized in that: The information of the SSB position used for actually transmitting the SSB in the SSB burst set includes the information of the predetermined SSB position; or, The information of the SSB position used for actually transmitting the SSB in the SSB burst set does not include the information of the predetermined SSB position.

53. The terminal device according to any one of claims 49 to 52, characterized in that: The information of the SSB position used for actually transmitting the SSB in the SSB burst set also includes the position of the predetermined SSB position among multiple SSB positions located in the same time slot.

54. The terminal device according to any one of claims 46 to 53, characterized in that: The terminal device further includes a processing unit, configured to: Acquire activation information of the SSB, where the activation information is acquired based on one or more of the following methods: The activation information of the SSB is carried in the configuration information of the SSB; and / or, The activation information is sent by the network device to the terminal device after the configuration information of the SSB; and / or, The activation information is pre-agreed.

55. The terminal device according to claim 54, characterized in that: The activation information includes one or more of the following: Activation indication information used to indicate SSB activation; Deactivation indication information used to instruct SSB deactivation; Information on the start time of SSB transmission; Information on the end time of SSB transmission; Information on the duration of SSB transmissions; The secondary cell state information in the configuration information of the secondary cell; SSB cycle information; Information about SSB index.

56. The terminal device according to claim 55, characterized in that: The transmission start time of the SSB is determined based on one or more of the following: The time when the terminal device receives the configuration information of the SSB; the first resource available for transmitting the SSB after the terminal device receives the configuration information of the SSB; The first resource used for actually transmitting the SSB after the terminal device receives the configuration information of the SSB; The first resource that can be used to transmit the SSB after a preset time has passed since the terminal device received the configuration information of the SSB; The first resource used for actually transmitting the SSB after the preset time has passed since the terminal device received the configuration information of the SSB; The first resource used for actually transmitting the SSB in the SSB burst set after the preset time period has passed since the terminal device received the configuration information of the SSB; The time when the terminal device receives the SSB activation indication information; The first resource that can be used to transmit the SSB after the time when the terminal device sends feedback information, the feedback information including feedback information of configuration information or feedback information of activation information of the SSB; The first resource used for actually transmitting the SSB after the time when the terminal device sends the feedback information; The first resource used for actually transmitting SSB in the SSB burst set after the time when the terminal device sends the feedback information.

57. The terminal device according to claim 56, characterized in that: The preset duration is determined based on one or more of the following: The preset duration is notified to the terminal device by high-layer signaling; or, The preset duration is agreed in advance.

58. The terminal device according to claim 56 or 57, characterized in that: The preset duration is three times the number of time slots in each subframe.

59. The terminal device according to any one of claims 55 to 58, characterized in that: The transmission end time of the SSB is determined based on one or more of the following: The reporting time of the measurement report of the terminal device; The time when the terminal device receives the SSB deactivation indication information; The time when the terminal device sends feedback information of SSB deactivation indication information; The time when the terminal device receives the deactivation indication information of the secondary cell.

60. The terminal device according to any one of claims 55 to 59, characterized in that: The transmission duration of the SSB is determined based on one or more of the following: the duration of the transmission; the length of a timer for recording the duration of the transmission; The number of SSB transmission cycles.

61. The terminal device according to any one of claims 55 to 60, characterized in that: The time granularity used to represent the transmission start time of the SSB, the transmission end time of the SSB, the transmission duration of the SSB, and the preset duration includes one or more of the following: symbol, half slot, slot, frame.

62. The terminal device according to claim 61, characterized in that: The subcarrier spacing used to determine the time granularity is determined based on one or more of the following: The subcarrier spacing carried in the configuration information of the SSB; A subcarrier spacing used to transmit configuration information of the SSB; Subcarrier spacing of the SSB of the primary cell; Subcarrier spacing of the secondary cell.

63. The terminal device according to any one of claims 55 to 62, characterized in that: When the secondary cell status information is configured to be activated, it is used to indicate that the terminal device activates the SSB when receiving the configuration information of the SSB; or, when the secondary cell status information is configured to be deactivated, it is used to indicate that the terminal device does not activate the SSB when receiving the configuration information of the SSB.

64. The terminal device according to any one of claims 46 to 63, characterized in that: The transceiver unit is also used for: Feedback information is sent to the network device, where the feedback information is used to trigger the network device to send the SSB, and the feedback information includes feedback information of configuration information or feedback information of activation information of the SSB.

65. The terminal device according to claim 64, characterized in that: When the configuration information of the SSB is carried in MAC signaling, the feedback information is the HARQ-ACK of the configuration information of the SSB; or, when the configuration information of the SSB is carried in RRC signaling, the feedback information is the uplink response of the RRC signaling.

66. The terminal device according to any one of claims 46 to 65, characterized in that: The activation of the SSB is located before the activation indication information of the secondary cell; and / or, The activation of the SSB precedes the configuration information of the SSB; and / or, The activation of the SSB is located after the activation indication information of the secondary cell; and / or, The activation of the SSB is located after the configuration information of the SSB.

67. The terminal device according to any one of claims 46 to 66, characterized in that: The terminal device further includes a processing unit, configured to: Based on the configuration information of the SSB, perform an operation related to the SSB; and / or, Based on the activation information of SSB, perform operations related to SSB.

68. The terminal device according to any one of claims 46 to 67, characterized in that: The terminal device further includes a processing unit, configured to: In the case where the network device triggers the transmission of the SSB for the terminal device, based on the activation indication information sent by the network device for indicating the activation of the SSB, performing an operation related to the SSB; or, When the network device triggers the transmission of SSB for other terminal devices other than the terminal device, operations related to SSB are performed based on the configuration information of the SSB sent by the network device.

69. The terminal device according to claim 67 or 68, characterized in that: The SSB-related operations include: Performing SSB testing; and / or, A puncturing operation is performed on the channel based on the SSB.

70. A network device, characterized in that: include: The transceiver unit is used to send the configuration information of the synchronization signal broadcast channel block SSB to the terminal device, and the SSB is an on-demand SSB.

71. The network device according to claim 70, characterized in that The configuration information of the SSB is carried by one or more of the following: configuration information of the secondary cell, activation indication information of the secondary cell, RRC signaling, MAC signaling, multicast signaling, and broadcast signaling.

72. The network device according to claim 70 or 71, characterized in that: The SSB configuration information includes SSB resource information that can be used to transmit the SSB, and the SSB resource information includes one or more of the following: SSB frequency information; The SSB burst set is used to actually transmit the information of the SSB position of the SSB; SSB cycle information; Subcarrier spacing of SSB; Bandwidth of SSB; Downlink transmission power of SSB; Auxiliary cell identifier; The resource sequence number corresponding to the multiple SSB resource information included in the configuration information of the SSB.

73. The network device according to claim 72, characterized in that The information of the SSB position used for actually transmitting the SSB in the SSB burst set includes the offset between the SSB position used for actually transmitting the SSB in the SSB burst set and the predetermined SSB position.

74. The network device according to claim 73, characterized in that The SSB position includes an SSB index.

75. The network device according to claim 73 or 74, characterized in that: The predetermined SSB position is the first SSB position among multiple SSB positions in the SSB burst set used for actually transmitting the SSB.

76. The network device according to any one of claims 73 to 75, characterized in that: The information of the SSB position used for actually transmitting the SSB in the SSB burst set includes the information of the predetermined SSB position; or, The information of the SSB position used for actually transmitting the SSB in the SSB burst set does not include the information of the predetermined SSB position.

77. The network device according to any one of claims 73 to 76, characterized in that: The information of the SSB position used for actually transmitting the SSB in the SSB burst set also includes the position of the predetermined SSB position among multiple SSB positions located in the same time slot.

78. The network device according to any one of claims 70 to 77, characterized in that: The SSB configuration information also includes SSB activation information; and / or, The activation information is sent by the network device to the terminal device after the configuration information of the SSB; and / or, The activation information is pre-agreed.

79. The network device according to claim 78, characterized in that The activation information includes one or more of the following: Activation indication information used to indicate SSB activation; Deactivation indication information used to instruct SSB deactivation; Information on the start time of SSB transmission; Information on the end time of SSB transmission; Information on the duration of SSB transmissions; The secondary cell state information in the configuration information of the secondary cell; SSB cycle information; Information about SSB index.

80. The network device according to claim 79, characterized in that The transmission start time of the SSB is determined based on one or more of the following: The time when the terminal device receives the configuration information of the SSB; the first resource available for transmitting the SSB after the terminal device receives the configuration information of the SSB; The first resource used for actually transmitting the SSB after the terminal device receives the configuration information of the SSB; The first resource that can be used to transmit the SSB after a preset time has passed since the terminal device received the configuration information of the SSB; The first resource used for actually transmitting the SSB after the preset time has passed since the terminal device received the configuration information of the SSB; The first resource used for actually transmitting the SSB in the SSB burst set after the preset time period has passed since the terminal device received the configuration information of the SSB; The time when the terminal device receives the SSB activation indication information; The first resource that can be used to transmit the SSB after the time when the terminal device sends feedback information, the feedback information including feedback information of configuration information or feedback information of activation information of the SSB; The first resource used for actually transmitting the SSB after the time when the terminal device sends the feedback information; The first resource used for actually transmitting SSB in the SSB burst set after the time when the terminal device sends the feedback information.

81. The network device according to claim 80, characterized in that: The preset duration is determined based on one or more of the following: The preset duration is notified to the terminal device by high-layer signaling; or, The preset duration is agreed in advance.

82. The network device according to claim 80 or 81, characterized in that: The preset duration is three times the number of time slots in each subframe.

83. The network device according to any one of claims 79 to 82, characterized in that: The transmission end time of the SSB is determined based on one or more of the following: The reporting time of the measurement report of the terminal device; The time when the terminal device receives the SSB deactivation indication information; The time when the terminal device sends feedback information of SSB deactivation indication information; The time when the terminal device receives the deactivation indication information of the secondary cell.

84. The network device according to any one of claims 79 to 83, characterized in that: The transmission duration of the SSB is determined based on one or more of the following: the duration of the transmission; the length of a timer for recording the duration of the transmission; The number of SSB transmission cycles.

85. The network device according to any one of claims 79 to 84, characterized in that: The time granularity used to represent the transmission start time of the SSB, the transmission end time of the SSB, the transmission duration of the SSB, and the preset duration includes one or more of the following: symbol, half slot, slot, frame.

86. The network device according to claim 85, characterized in that The subcarrier spacing used to determine the time granularity is determined based on one or more of the following: The subcarrier spacing carried in the configuration information of the SSB; A subcarrier spacing used to transmit configuration information of the SSB; Subcarrier spacing of the SSB of the primary cell; Subcarrier spacing of the secondary cell.

87. The network device according to any one of claims 79 to 81, characterized in that: When the secondary cell status information is configured to be activated, it is used to indicate that the terminal device activates the SSB when receiving the configuration information of the SSB; or, when the secondary cell status information is configured to be deactivated, it is used to indicate that the terminal device does not activate the SSB when receiving the configuration information of the SSB.

88. The network device according to any one of claims 70 to 87, characterized in that: The transceiver unit is also used for: Receive feedback information sent by the terminal device, where the feedback information is used to trigger the network device to send the SSB, and the feedback information includes feedback information of configuration information or feedback information of activation information of the SSB.

89. The network device according to claim 88, characterized in that When the configuration information of the SSB is carried in MAC signaling, the feedback information is the HARQ-ACK of the configuration information of the SSB; or, when the configuration information of the SSB is carried in RRC signaling, the feedback information is the uplink response of the RRC signaling.

90. The network device according to any one of claims 70 to 89, characterized in that: The activation of the SSB is located before the activation indication information of the secondary cell; and / or, The activation of the SSB precedes the configuration information of the SSB; and / or, The activation of the SSB is located after the activation indication information of the secondary cell; and / or, The activation of the SSB is located after the configuration information of the SSB.

91. A terminal device, characterized in that: It comprises a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the terminal device executes the method according to any one of claims 1 to 24.

92. A network device, characterized in that: It comprises a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the network device executes the method according to any one of claims 25 to 45.

93. A device, characterized in that The device comprises a processor, configured to call a program from a memory so as to cause the device to execute a method according to any one of claims 1 to 45.

94. A chip, characterized in that: The device comprises a processor, configured to call a program from a memory so that a device equipped with the chip executes a method according to any one of claims 1 to 45.

95. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 45.

96. A computer program product, characterized in that A program is included, which causes a computer to execute the method according to any one of claims 1 to 45.

97. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 45.

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