Indication method and apparatus for synchronization signal block

Abstract

Embodiments of the present application​ provide an indication method and apparatus for a synchronization signal block. The method comprises: a terminal device receives N synchronization signal block (SSB) configurations from a network device, and / or the terminal device receives RRC signaling and / or a MAC CE and / or DCI, the RRC signaling and / or the MAC CE and / or the DCI being used for indicating / activating / triggering one synchronization signal block configuration among the N synchronization signal block configurations.

Description

Synchronous signal block indication method and device Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] As a crucial component of new global infrastructure, 5G communication networks have experienced rapid development in recent years. As networks expand, operators' energy consumption continues to rise. For example, data released by China's Ministry of Industry and Information Technology indicates that energy consumption will increase by approximately 80% between 2015 and 2022.

[0003] With the development of 5G and the large-scale commercial use of 5G active antenna units (AAUs), energy consumption will increase exponentially compared to the remote radio units (RRUs) used primarily in 3G and 4G, due to the higher power consumption of AAUs. 5G defines three major service types: enhanced mobile broadband (eMBB), massive machine type of communication (mMTC), and ultra-reliable low-latency communication (URLLC). This will lead to an increase in bursty small packet traffic and 24 / 7 base station operation. The average daily energy consumption of 5G sites will be more than double that of 4G.

[0004] In the 5G era, 3GPP has introduced key technologies such as Massive MIMO and increased RF bandwidth. 5G supports higher data rates and greater data traffic, requiring more transmission bandwidth. High-frequency bands will be the primary frequency band for future 5G expansion. However, the transmission characteristics of high-frequency bands limit site coverage, leading to denser deployment of 5G sites. The increased energy consumption will also place significant pressure on operators' operating costs. Therefore, network energy conservation is crucial for reducing operating costs, and energy conservation in 5G networks is a pressing issue.

[0005] To achieve energy conservation, network devices can perform energy conservation processing in the time domain, frequency domain, spatial domain, and / or energy domain based on network load. For example, in the spatial and energy domains, network devices can turn off some antennas to achieve energy conservation when the load is low. In the time domain, network devices can adjust the period or time domain position of cell-common reference signals (such as SSB / SIB) when there are few users and light load to achieve energy conservation.

[0006] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.

[0007] Summary of the Invention

[0008] The inventors have discovered that how to flexibly adjust the synchronization signal block (SSB) transmission to achieve energy saving without affecting the normal transmission of terminal devices has become a problem that needs to be urgently solved in network energy-saving technology.

[0009] In response to at least one of the above problems, an embodiment of the present application provides a method and device for indicating a synchronization signal block.

[0010] According to one aspect of an embodiment of the present application, a synchronization signal block (SSB) indication method is provided, including:

[0011] The terminal device receives N synchronization signal block (SSB) configurations from the network device, where N ≥ 1; and / or,

[0012] The terminal device receives RRC signaling and / or MAC CE and / or DCI; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one synchronization signal block configuration among the N synchronization signal block configurations.

[0013] According to another aspect of an embodiment of the present application, a synchronization signal block (SSB) indication device is provided, including:

[0014] A receiving unit that receives N synchronization signal block (SSB) configurations from a network device, where N≥1; and / or receives RRC signaling and / or MAC CE and / or DCI; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one synchronization signal block configuration among the N synchronization signal block configurations.

[0015] According to another aspect of an embodiment of the present application, a synchronization signal block (SSB) indication method is provided, including:

[0016] The network device sends N synchronization signal block (SSB) configurations to the terminal device, where N ≥ 1; and / or,

[0017] The network device sends RRC signaling and / or MAC CE and / or DCI to the terminal device; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one synchronization signal block configuration among the N synchronization signal block configurations.

[0018] According to another aspect of an embodiment of the present application, a synchronization signal block (SSB) indication device is provided, including:

[0019] A sending unit that sends N synchronization signal block (SSB) configurations to a terminal device, where N≥1; and / or sends RRC signaling and / or MAC CE and / or DCI to the terminal device; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one of the N synchronization signal block configurations.

[0020] According to another aspect of an embodiment of the present application, a communication system is provided, including:

[0021] A network device, which sends N synchronization signal block (SSB) configurations to a terminal device, where N≥1; and / or sends RRC signaling and / or MAC CE and / or DCI to the terminal device;

[0022] A terminal device, wherein the N synchronization signal blocks (SSB) are configured, and / or receives RRC signaling and / or MAC CE and / or DCI; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one synchronization signal block configuration among the N synchronization signal block configurations.

[0023] One of the beneficial effects of the embodiments of the present application is that in some scenarios of wireless communication applications (such as energy-saving mode), network equipment and terminal equipment can quickly and flexibly adjust SSB transmission, which can not only improve network gain (such as energy-saving gain) but also ensure normal transmission of terminal equipment.

[0024] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0025] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0026] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0028] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0029] FIG2 is a schematic diagram of the time-frequency structure of SSB;

[0030] FIG3 is a schematic diagram of a method for indicating a synchronization signal block according to an embodiment of the present application;

[0031] FIG4 is an example diagram of SSB according to an embodiment of the present application;

[0032] FIG5 is an example diagram of an SSB pattern according to an embodiment of the present application;

[0033] FIG6 is an example diagram of SSB configuration 0 according to an embodiment of the present application;

[0034] FIG7 is an example diagram of SSB configuration 2 according to an embodiment of the present application;

[0035] FIG8 is an example diagram of SSB configuration 3 according to an embodiment of the present application;

[0036] FIG9 is an example diagram of SSB configuration 4 according to an embodiment of the present application;

[0037] FIG10 is a schematic diagram of a method for indicating a synchronization signal block according to an embodiment of the present application;

[0038] FIG11 is a schematic diagram of a device for indicating a synchronization signal block according to an embodiment of the present application;

[0039] FIG12 is a schematic diagram of an indication device for a synchronization signal block according to an embodiment of the present application;

[0040] FIG13 is a schematic diagram of a terminal device according to an embodiment of the present application;

[0041] FIG14 is a schematic diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0042] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0043] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0044] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0045] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0046] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), future 6G, etc., and / or other communication protocols currently known or to be developed in the future.

[0047] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to the communication network and provides services to the terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0048] Among them, base stations may include but are not limited to: NodeB (NodeB or NB), evolved NodeB (eNodeB or eNB) and 5G base station (gNB), IAB host, etc., and may also include remote radio head (RRH, Remote Radio Head), remote radio unit (RRU, Remote Radio Unit), relay (relay) or low-power node (such as femeto, pico, etc.). The term "base station" can include some or all of their functions. Each base station can provide communication coverage for a specific geographical area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0049] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and so on.

[0050] Among them, terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.

[0051] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.

[0052] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which can be a UE or one or more terminal devices as described above. Unless otherwise specified herein, "device" can refer to either network equipment or terminal equipment.

[0053] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0054] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation using a terminal device and a network device as an example. As shown in FIG1 , a communication system 100 may include a network device 101 and terminal devices 102 and 103. For simplicity, FIG1 illustrates only two terminal devices and one network device as an example, but the embodiments of the present application are not limited thereto.

[0055] In the embodiment of the present application, existing services or future services can be transmitted between the network device 101 and the terminal devices 102 and 103. For example, these services may include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0056] It is worth noting that FIG1 shows that both terminal devices 102 and 103 are within the coverage range of network device 101, but the present application is not limited thereto. Both terminal devices 102 and 103 may not be within the coverage range of network device 101, or one terminal device 102 may be within the coverage range of network device 101 while the other terminal device 103 is outside the coverage range of network device 101.

[0057] System message design is a key concept in wireless communication systems. Cell-level system messages are primarily used for configuring cell residency, providing user access, and interoperability. 5G NR simplifies system messages to a certain extent, differing from 4G in both synchronization signal and system message design. Therefore, a new understanding is necessary.

[0058] Unlike 4G, which separates the cell downlink synchronization signal and the physical broadcast channel, 5G couples the cell synchronization signal (SS) and the physical broadcast channel (PBCH) to some extent, appearing in the form of SS / PBCH resource blocks, referred to as synchronization signal blocks (SSBs).

[0059] Figure 2 is a schematic diagram of the time-frequency structure of the SSB. As shown in Figure 2, the 5G NR SSB occupies 20 consecutive physical resource blocks (PRBs) in the frequency domain, totaling up to 240 consecutive resource elements (REs). The synchronization signal (including the primary synchronization signal (PSS) and the secondary synchronization signal (SSS)) occupies 127 consecutive REs in the first and third OFDM symbols of the SSB, respectively. The center position of the SSB frequency domain can be flexibly configured and adjusted locally.

[0060] After the UE achieves SSB synchronization through frequency search, it decodes the Master Information Block (MIB) in the physical broadcast channel. In the LTE system, in addition to configuring the MIB, the cell also configures SIB1 according to a fixed transmission cycle, and transmits the necessary parameter configurations for parsing SIB2 to SIBN through SIB1. 5G NR provides an optimized mechanism for system message configuration, that is, it is configured on demand, and SIB1 is not necessarily configured according to a fixed cycle in principle. However, SIB1 transmits important information related to cell selection, and even if it is not configured according to a fixed cycle, it needs to be semi-statically configured through RRC signaling. Since the PDCCH carries limited content, and cell-level system messages generally do not change dynamically, PDCCH is generally not used to carry system messages during design. In 5G NR, configuration is achieved semi-statically through RRC messages.

[0061] The "on-demand" design concept of 5G NR system messages greatly reduces the resource usage overhead of system messages. At the same time, terminal devices can also reduce the power consumption caused by periodic monitoring of system messages to a certain extent. In 5G NR, the ssb-SubcarrierOffset parameter in the MIB determines whether SIB1 is configured in PDCCH common search space CORESET#0. This parameter represents the subcarrier offset of the frequency domain starting position of the SSB relative to the common PRB. For 5G cell carriers in the FR1 (sub 6 GHz) band, the UE determines the subcarrier offset of the SSB relative to the common PRB in combination with the PBCH additional time domain payload bit. The value range is 0 to 31. If the value is not greater than 23, the UE assumes that the cell is configured with the system information SIB1; otherwise, the SIB1 content is not included in the system information. For 5G cell carriers in the FR2 band, the UE determines the subcarrier offset only using the ssb-SubcarrierOffset parameter. The value range is 0 to 15. If the value is not greater than 11, the UE assumes that the cell is configured with the system information SIB1; otherwise, the SIB1 content is not included in the system information. If this parameter is not configured, the UE determines the frequency domain subcarrier offset of the SSB through frequency search.

[0062] For different subcarrier spacings, the candidate positions of SSBs per transmission half-frame are defined as follows:

[0063] A: With a subcarrier spacing of 15 kHz, for NR carrier frequencies within the FR1 band that are no greater than 3 GHz, the candidate transmission times for SSB can be configured at the {2, 8} OFDM positions of time slots 0 and 1, for a total of four candidate times. For NR carrier frequencies within the FR1 band that are greater than 3 GHz, the candidate transmission times for SSB can be configured at the {2, 8} OFDM positions of time slots 0, 1, 2, and 3, for a total of eight candidate times.

[0064] B: With a subcarrier spacing of 30 kHz, for NR carrier frequencies within the FR1 band and not exceeding 3 GHz, the candidate transmission times for SSB can be configured at the {4, 8, 16, 20} OFDM positions calculated starting from slot 0, for a total of four candidate times. For NR carrier frequencies within the FR1 band and exceeding 3 GHz, the candidate transmission times for SSB can be configured at the {4, 8, 16, 20} OFDM positions calculated starting from slots 0 and 2, for a total of eight candidate times.

[0065] C: Subcarrier spacing is 30kHz. In 5G FDD spectrum mode, for NR carrier frequencies within the FR1 band not exceeding 3GHz, the candidate transmission time of SSB can be configured at the {2, 8} OFDM positions of time slots 0 and 1, for a total of 4 candidate time slots. For NR carrier frequencies within the FR1 band exceeding 3GHz, the candidate transmission time of SSB can be configured at the {2, 8} OFDM positions of time slots 0, 1, 2, and 3, for a total of 8 candidate time slots. In 5G TDD spectrum mode, for NR carrier frequencies within the FR1 band not exceeding 2.4GHz, the candidate transmission time of SSB can be configured at the {2, 8} OFDM positions of time slots 0 and 1, for a total of 4 candidate time slots. For NR carrier frequencies within the FR1 band exceeding 2.4GHz, the candidate transmission time of SSB can be configured at the {2, 8} OFDM positions of time slots 0, 1, 2, and 3, for a total of 8 candidate time slots.

[0066] D: Subcarrier spacing is 120 kHz. For NR carrier frequencies in the FR2 band, the candidate transmission times for SSB are configured at time slots 0, 2, 4, 6, 10, 12, 14, 16, 20, 22, 24, 26, 30, 32, 34, and 36, which are the starting OFDM positions of {4, 8, 16, 20}, for a total of 64 candidate times.

[0067] E: The subcarrier spacing is 240 kHz. For the NR carrier frequency in the FR band, the candidate transmission times of the SSB are configured at time slots 0, 4, 8, 12, 20, 24, 28, and 32, which are the starting OFDM positions {8, 12, 16, 20, 32, 36, 40, 44}, for a total of 64 candidate times.

[0068] For the SSB candidate position patterns ABCDE transmitted within a half-frame, the UE can determine the specific index position of the currently transmitted SSB by decoding the PBCH payload bits. For a half-frame containing four SSB candidate transmission positions, the index is determined by two low-significant bits (LSBs), while for a half-frame containing eight SSB candidate transmission positions, the index is determined by three low-significant bits (LSBs). In both cases, the PBCH index corresponds exactly to the initial sequence index of the pseudo-random sequence of the DMRS in the SSB. When determining the two or three low-significant bits, the UE does not directly obtain the information by decoding the PBCH transmitted bits, but rather indirectly performs logical mapping by decoding the DMRS. A half-frame contains 64 SSB candidate transmission positions. The index of the DMRS in the transmitted SSB is cyclically mapped according to the three low-significant bits (8 SSB cycles). The UE combines the three low-significant bits (LSBs) with the three additional most significant bits (MSBs) of the PBCH payload to determine the SSB transmission index. The PBCH payload has a total of 32 bits, including 23 bits for carrying RRC content. Of these 23 bits, 6 bits are used to calculate the high-order 6 bits of the radio frame. In addition to these 23 bits, the physical layer uses an additional 4 bits related to the transmission time as the low-order 4 bits for calculating the radio frame, 1 bit as the half-frame identifier in the radio frame, and 3 bits as the high-order 3 bits for determining the SSB index. The remaining 1 bit is not specified by the protocol, and the MAC layer entity fills it in to align with the transmission byte.

[0069] The SSB pattern gives the possible candidate positions of SSB and the maximum value L of SSB within the SSB burst set (SS-burst) max The number of SSBs actually activated can be less than L max The base station notifies the UE of which SSBs are activated through the high-level parameter ssb-PositionInBurst in SIB1 or UE-specific RRC signaling. For SSB-related RRC parameters, please refer to the relevant technology.

[0070] The above is a schematic illustration of the SSB-related content of the embodiments of the present application, and the present application is not limited thereto. The inventors have discovered that currently, SSB information such as the SSB period (ssb-periodicityServingCell) and the time domain position of the activated SSB within the SS-burst (ssb-PositionInBurst) are configured through RRC parameters. If the network device needs to adjust the SSB configuration information, it can only be achieved through RRC reconfiguration messages, which takes a long time to change and cannot quickly and flexibly adjust the SSB.

[0071] In the embodiments of the present application, the high-layer signaling may be, for example, radio resource control (RRC) signaling; for example, an RRC message, including, for example, an MIB, system information, or a dedicated RRC message; or an RRC information element (RRC IE). The high-layer signaling may also be, for example, MAC (Medium Access Control) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.

[0072] In network energy-saving scenarios, such as when antenna configurations change, the issue of how to map PDSCH resources is pressing. In the following description, the terms "PDCCH" and "physical downlink control channel" or "downlink control information" are interchangeable, and the terms "PDSCH" and "physical downlink data channel" or "downlink data" are also interchangeable, to avoid confusion.

[0073] In addition, transmitting or receiving PDCCH can be understood as transmitting or receiving downlink control information carried by PDCCH; transmitting or receiving PDSCH can be understood as transmitting or receiving downlink data carried by PDSCH. In the embodiments of the present application, the terms "indication", "activation" and "trigger" can be used interchangeably, or any combination of the two or more.

[0074] Embodiments of the first aspect

[0075] The embodiment of the present application provides a method for indicating a synchronization signal block, which is described from the perspective of a terminal device. FIG3 is a schematic diagram of the method for indicating a synchronization signal block according to an embodiment of the present application. As shown in FIG3 , the method includes:

[0076] 301, the terminal device receives N synchronization signal block (SSB) configurations from the network device, where N ≥ 1;

[0077] 302. The terminal device receives RRC signaling and / or MAC CE and / or DCI; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one synchronization signal block configuration among the N synchronization signal block configurations.

[0078] It is worth noting that FIG3 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG3 above.

[0079] In some embodiments, the SSB configuration may be sent via RRC signaling. A network device may configure at least one SSB configuration for a terminal device. The SSB configuration is associated with a first serving cell / first carrier, i.e., the N synchronization signal block (SSB) configurations are from the first serving cell / first carrier, and / or the network device configures the N synchronization signal block (SSB) configurations to the first serving cell / first carrier. The first serving cell / first carrier is a secondary cell, and / or the first serving cell / first carrier is a primary cell.

[0080] For example, the first serving cell is a secondary cell, and the secondary cell refers to a serving cell that serves only as a secondary cell of the UE, not as a primary cell. For example, if a serving cell is the primary cell of some UEs, the SSB of the serving cell cannot be adjusted, or the network device in the serving cell cannot configure and activate / indicate / trigger the SSB configuration, and the SSB configured in accordance with the existing protocol can be operated. For another example, the SSB in the embodiment of the present application is only applicable to the secondary cell (Adaptation of SSB is applicable to the serving cell which is only used as SCell).

[0081] For another example, the first serving cell may be a primary cell or a secondary cell.

[0082] Regarding the bearer of SSB configuration, for example, if the first serving cell is a primary cell, in the Rel-19 NES scenario, the network device can configure at least one SSB configuration for the primary cell, for example, the SIB1 or RRC reconfiguration message of the primary cell includes at least one SSB configuration; for another example, if the first serving cell is a secondary cell, in the Rel-19 NES scenario, the network device can configure at least one SSB configuration for the secondary cell. For example, the secondary cell configuration information (SCellConfig->sCellConfigCommon:servingCellConfigCommon) includes at least one SSB configuration and / or includes an SSB configuration list. The at least one SSB configuration configured in the primary cell or the secondary cell includes an SSB configuration in an existing protocol and an SSB configuration supported and / or enhanced by Rel-19 NES, wherein at least one SSB configuration has a default SSB, and the default configuration is an SSB configuration of an existing protocol or a configuration that does not transmit SSB (non-SSB), and / or the SSB configuration in the existing protocol is a default SSB, and the at least one SSB configuration is an SSB configuration supported and / or enhanced by Rel-19 NES.

[0083] In some embodiments, the SSB configuration includes at least one of the following: an SSB period, an SSB time domain position indication, an SSB subframe / half-frame index / offset or an SSB time offset, an SSB frequency, an SSB subcarrier spacing, an SSB power, an SSB duration, the number of SSBs, and an SSB transmission timer. The present application is not limited thereto and may also include other parameters.

[0084] For example, an SSB configuration contains at least one of the following information:

[0085] --SSB time domain position indication parameter, or SSB beam / spatial indication parameter, or SSB activation indication parameter within SS-burst. This parameter can reuse the parameter ssb-PositionsInBurst, or a newly defined parameter, such as ssb-PositionsInBurst-r19. This parameter is used to indicate the time domain position parameter of the SSB transmitted in the SS-burst, or to indicate whether the SS is activated / triggered within the SSB burst. This parameter enables per-beam SSB management / adjustment. For example, the parameter ssb-PositionsInBurst = 10000000 indicates that only the SSB corresponding to Beam 0 is activated within the SSB burst, thereby enabling per-beam SSB management / adjustment.

[0086] --SSB period parameter, which is used to indicate the period of SSB. The parameter ssb-periodicityServingCell can be reused or a new parameter can be defined, such as ssb-Periodicity-r19;

[0087] --SSB frequency-related parameters, which are used to indicate the SSB frequency. The parameter absoluteFrequencySSB can be reused or a new parameter can be defined, such as ssbFrequency-r19;

[0088] --SSB subcarrier spacing related parameters, which are used to indicate the SSB subcarrier spacing. The parameter ssb-SubcarrierOffset can be reused, or a new parameter can be defined, such as ssb-SubcarrierOffset-r19;

[0089] --SSB subframe / half-frame index / offset or SSB time offset parameter, which is used to indicate whether the SSB is the first half-frame or the second half-frame, and / or indicates the subframe offset of the SSB, and / or indicates the time offset relative to SFN0 slot0, and / or indicates the SFN offset.

[0090] --SSB duration / SSB number parameter, which is used to indicate the number of SSB cycles or the duration of the SSB. For example, the SSB cycle duration / SSB cycle number parameter is used to indicate the current SSB duration, and / or the number of SSBs, and / or the number of SSB cycles. For another example, if this parameter is present in the SSB configuration, it means that the SSB lasts for the parameter duration. If this parameter is absent, it means that the SSB is sent periodically.

[0091] --SSB transmission timer, the parameter is a timer used to indicate whether SSB is transmitted. Normal operation of the timer indicates SSB transmission, and timer expiration indicates that SSB stops transmitting. For example, the SSB transmission timer is used to indicate the duration of SSB transmission. During normal operation of the SSB transmission timer, the UE assumes / assumes that the serving cell transmits the SSB configured by the SSB; after the SSB transmission timer times out, the UE assumes / assumes that the serving cell does not transmit the SSB configured by the SSB; for another example, the terminal assumes / assumes that the SSB configuration is configured by high-level parameters and the timer starts running when it is activated.

[0092] The above schematically illustrates the various parameters of the SSB configuration, but the present application is not limited thereto. The SSB configuration may include one of the above parameters, or any combination of two or more parameters, and so on.

[0093] In some embodiments, the SSB configuration includes one or more parameters, which are used by the terminal device to determine the transmission of SSB and / or used by the terminal device to determine the activation status of the SSB configuration.

[0094] For example, the one or more parameters may be referred to as SSB transmission activation / indication information / parameter / IE / parameter, or SSB transmission status information / parameter / IE. Hereinafter, “SSB transmission activation / indication information / parameter / IE / parameter” will be used instead of “SSB transmission activation / indication information / parameter / IE / parameter or SSB transmission status information / parameter / IE”, but the present application is not limited thereto.

[0095] In some embodiments, one or more parameters included in the SSB configuration are used to indicate whether the SSB configuration is in an activated state, and / or indicate whether the first service cell sends SSB according to the SSB configuration, and / or indicate whether the first service cell sends SSB according to the SSB configuration after the terminal device receives the SSB configuration, and / or indicate whether the first service cell sends SSB according to the SSB configuration during the period from receiving the SSB configuration to receiving the RRC and / or MAC CE and / or DCI, and / or indicate whether the first service cell sends SSB, and / or indicate whether the first service cell sends SSB after the terminal device receives the SSB configuration, and / or indicate whether the first service cell sends SSB during the period from receiving the SSB configuration to receiving the RRC and / or MAC CE and / or DCI.

[0096] For example, the terminal device receives secondary cell addition / modification configuration information (IE sCellToAddModList), and the SCell addition / modification configuration information includes SSB configuration related information; the terminal device is configured with the secondary cell addition / modification configuration IE sCellToAddModList, and the sCellToAddModList includes the SCellConfig IE, and the SCellConfig IE includes the ServingCellConfigCommon IE, and the ServingCellConfigCommon IE includes SSB configuration related parameters, such as ssb-PositionsInBurst, and / or, ssb-periodicityServingCell, and / or, ssbSubcarrierSpacing, and / or, ssb-PositionQCL-r16.

[0097] Table 1 schematically shows the situation of sCellToAddModList IE.

[0098] Table 1

[0099] Table 2 schematically shows the situation of ServingCellConfigCommon IE.

[0100] Table 2

[0101] For example, the secondary cell addition / configuration IE (sCellToAddModList) or SCellConfig IE or ServingCellConfigCommon IE includes at least SSB transmission activation / indication information / parameter / IE: the SSB transmission activation / indication information / parameter / IE / parameter is used to indicate whether the SSB configuration is activated, that is, whether the first serving cell transmits SSB according to the SSB configuration, and / or whether the terminal device transmits SSB according to the SSB configuration after receiving the SSB configuration information.

[0102] The SSB transmission activation / indication information / parameter / IE is a newly defined or existing parameter, and the terminal device determines whether the first serving cell transmits SSB and / or whether the first serving cell transmits SSB according to the SSB configuration based on the value of the parameter. For example, the parameter is named SSBTransmissionState, or SSBState, or on-demandSSBTransmission.

[0103] For example, the parameter value is ENUMERATED{activated} or ENUMERATED{true}. When the field / parameter is present or included in the secondary cell configuration or SSB configuration, the UE assumes that the SSB configuration is activated; when the field / parameter is absent, the UE assumes that the SSB configuration is not activated.

[0104] For another example, the parameter value is ENUMERATED{deactivate} or ENUMERATED{false}. When the field / parameter is present or included in the secondary cell configuration or the SSB configuration, the UE assumes that the SSB configuration is deactivated; when the field / parameter is absent, the UE assumes that the SSB configuration is activated.

[0105] For another example, the parameter value is {activated, deactivated}, {true, false}, or {1, 0}. When the parameter value is activated, true, or 1, it indicates that the SSB configuration is activated, and the first serving cell transmits the SSB according to the SSB configuration; when the parameter value is false or 0, it indicates that the SSB configuration is not activated, and the first serving cell does not transmit the SSB corresponding to the SSB configuration.

[0106] For another example, the parameter is named SSBAbsent, {true, false}, or {1, 0}; when the parameter value is true or 1, it indicates that the current SSB configuration is not activated, and the first service cell does not transmit the SSB corresponding to the SSB configuration; when the parameter value is false or 0, it indicates that the current SSB configuration is activated, and the first service cell transmits the SSB corresponding to the SSB configuration.

[0107] In some embodiments, the terminal device performs L1 / L3 measurement and / or synchronization based on the one or more SSB transmission activation / indication information / parameters / IE parameters.

[0108] For example, the terminal device receives an SSB configuration, and the terminal device performs L1 / L3 measurement and synchronization based on the SSB transmission indication information / parameters / IE.

[0109] For example, the terminal device is a Rel-19 NES terminal, and the terminal device receives secondary cell addition / modification configuration information, the secondary cell addition / modification configuration information includes an SSB configuration, the SSB configuration includes the SSB transmission activation / indication information / parameter / IE, the SSB transmission activation / indication information / parameter / IE indicates the network device to transmit the SSB in the first service cell, the terminal device assumes that the first service cell transmits the SSB, and the terminal performs measurement and synchronization based on the SSB.

[0110] For another example, the terminal device is a Rel-19 NES terminal, and the terminal device receives secondary cell addition / modification configuration information, the secondary cell addition / modification configuration information includes an SSB configuration, and the SSB configuration includes the SSB transmission indication information / parameter / IE, and the SSB transmission indication information / parameter / IE indicates to the terminal device that the first service cell does not transmit the SSB, or the first service cell does not transmit the SSB from the time the terminal device receives the secondary cell addition / modification configuration information to the time the terminal receives the secondary cell activation MAC CE, the terminal device assumes that the first service cell does not transmit the SSB during the time period, and / or the terminal device does not perform measurement and synchronization.

[0111] For another example, the terminal device is a Rel-19 NES terminal, and the terminal device receives secondary cell addition / modification configuration information, the secondary cell addition / modification configuration information includes an SSB configuration, and the SSB configuration does not include SSB transmission indication information / parameters / IE. The terminal device assumes that the first service cell does not transmit SSB, or the first service cell does not transmit SSB from the time the terminal device receives the secondary cell addition / modification configuration information to the time the terminal device receives the secondary cell activation MAC CE, and the terminal device does not perform measurement and synchronization during this period; or, the terminal device assumes that the first service cell transmits SSB, and the terminal device performs measurement and synchronization based on the SSB.

[0112] In some embodiments, the terminal device receives at least two SSB configurations:

[0113] For example, the terminal device is a Rel-19 NES terminal, and the terminal device receives secondary cell addition / modification configuration information, the secondary cell addition / modification configuration information includes multiple SSB configurations, and the at least two SSB configurations include at least one SSB transmission indication information / parameter / IE, and the at least one SSB transmission indication information / parameter / IE indicates that the first service cell transmits SSB. The terminal device assumes that the first service cell transmits SSB, and the terminal device performs measurement and synchronization based on the SSB corresponding to the SSB transmission indication information / parameter / IE.

[0114] For another example, the terminal device is a Rel-19 NES terminal, and the terminal device receives secondary cell addition / modification configuration information, the secondary cell addition / modification configuration information includes multiple SSB configurations, and the at least two SSB configurations include at least one SSB transmission indication information / parameter / IE, and the at least one SSB transmission indication information / parameter / IE indicates that the first service cell does not transmit SSB, or the first service cell does not transmit SSB from the time the terminal device receives the secondary cell addition / modification configuration information to the time the terminal device receives the secondary cell activation MAC CE, the terminal device assumes that the first service cell does not transmit SSB during this period, and the terminal device does not perform measurement and synchronization.

[0115] For another example, the terminal device is a Rel-19 NES terminal, and the terminal device receives secondary cell addition / modification configuration information, the secondary cell addition / modification configuration information includes multiple SSB configurations, and each SSB configuration does not include SSB transmission indication information / parameters / IE. The terminal device assumes that the first service cell does not transmit SSB, or the first service cell does not transmit SSB from the time the terminal device receives the secondary cell addition / modification configuration information to the time the terminal receives the secondary cell activation MAC CE, and the terminal device does not perform measurement and synchronization; or, the terminal device assumes that the first service cell transmits SSB, and the terminal device performs measurement and synchronization based on the SSB.

[0116] In some embodiments, the SSB configuration does not include one or more parameters for determining SSB transmission and / or determining the activation state of the SSB configuration. The terminal device assumes that the first serving cell does not transmit SSB or the first serving cell does not transmit the SSB corresponding to the SSB configuration, and the terminal device does not perform measurement and synchronization. Alternatively, the terminal device assumes that the first serving cell transmits SSB or the first serving cell transmits the SSB corresponding to the SSB configuration and / or the first serving cell transmits the SSB corresponding to the SSB configuration in the default or existing protocol, and the terminal device performs measurement and synchronization based on the SSB.

[0117] In some embodiments, whether the SSB configuration includes one or more parameters for indicating whether the serving cell sends SSB, and / or indicating whether the serving cell sends SSB after the terminal device receives the SSB configuration, and / or indicating whether the serving cell sends SSB during the period from receiving the SSB configuration to receiving the RRC and / or MAC CE and / or DCI.

[0118] The above is a schematic description of the SSB configuration. The following describes the indication / activation / triggering of the SSB configuration.

[0119] In some embodiments, the N SSB configurations are sent via RRC, where N>=1, and the RRC activates / indicates the 1 SSB configuration.

[0120] For example, RRC / high-layer signaling includes SSB transmission activation / indication information / parameter / IE / parameter or SSB transmission status information / parameter / IE, and the parameter is used to indicate whether the SSB configuration is in an activated state; the terminal device determines whether the SSB configuration is activated based on the SSB transmission activation / indication information / parameter / IE / parameter or SSB transmission status information / parameter / IE; the activated SSB is transmitted on the service cell, and the terminal device performs measurement and / or synchronization operations based on the activated SSB.

[0121] In some embodiments, the one SSB configuration is activated / indicated through MAC CE; the MAC CE is a secondary cell activation / deactivation MAC CE, or the MAC CE is a MAC CE used to activate / trigger / indicate SSB configuration.

[0122] For example, an existing MAC CE, such as SCell activation / deactivation MAC CE, may be reused.

[0123] If the higher layer configures two SSB configurations (e.g., Rel-19 NES), the reserved 1 bit in the SCell activation / deactivation MAC CE can be used to activate / trigger / indicate the SSB configuration. For example, when the reserved 1 bit is 0, it indicates that the first SSB configuration is currently activated, and when the reserved 1 bit is 1, it indicates that the second SSB configuration is currently activated.

[0124] If the upper layer configures an SSB configuration (for example, the upper layer in the existing protocol configures an SSB configuration), and the SSB configuration does not contain an SSB configuration activation / indication parameter / IE, or the SSB configuration activation / indication parameter / IE contained in the SSB configuration indicates that the SSB configuration is in an inactive state, the SCell activation / deactivation MAC CE can be used to activate or deactivate the SSB configuration.

[0125] In some embodiments, the terminal device assumes that the SSB is transmitted on the secondary cell after receiving the SCell activation MAC CE, and the terminal device performs synchronization and measurement operations based on the SSB; the terminal device assumes that the SSB is not transmitted on the secondary cell after receiving the secondary cell deactivation MAC CE, and the terminal device does not perform synchronization and measurement operations.

[0126] If the serving cell does not send an SSB before the terminal device receives the SCell activation / deactivation MAC CE, and the SCell activation / deactivation MAC CE is used to activate at least one SSB configuration, then the SCell activation / deactivation MAC CE is used to trigger an on-demand SSB.

[0127] For another example, a new MAC CE may be defined: the MAC CE is only used for activation / triggering / indication of SSB configuration; or the MAC CE is used for both SCell activation / deactivation and activation / triggering / indication of SSB configuration.

[0128] In some embodiments, the activated SSB configuration is applied starting from the MAC CE application time.

[0129] In some embodiments, the first serving cell does not send SSB before the terminal device receives the secondary cell activation / deactivation MAC CE, and the secondary cell activation / deactivation MAC CE is used to activate at least one SSB configuration, then the secondary cell activation / deactivation MAC CE is used to trigger / activate / indicate on-demand SSB.

[0130] In some embodiments, when the terminal device receives the secondary cell activation MAC CE, the terminal device assumes that the first service cell sends an SSB; and / or, the terminal device assumes that the first service cell sends an SSB after receiving the secondary cell activation MAC CE, and the terminal device performs measurement and / or synchronization; and / or, when the terminal device receives the secondary cell deactivation MAC CE, the terminal device assumes that the first service cell does not send an SSB; and / or, when the terminal device assumes that the first service cell sends an SSB after receiving the secondary cell deactivation MAC CE, the terminal device does not perform measurement and / or synchronization.

[0131] In some embodiments, the SSB configuration is included in the secondary cell addition / modification configuration information, the MAC CE is the secondary cell activation / deactivation MAC CE, the first service cell is the secondary cell, and / or, the SSB configuration is included in the SIB1 or RRC reconfiguration message, and the first service cell is the primary cell.

[0132] In some embodiments, the terminal device receives the secondary cell add / modify configuration information and the secondary cell activation MAC CE at the same time, then the terminal device does not expect the secondary cell add / modify configuration information to indicate that the serving cell does not send SSB.

[0133] For example, the terminal device is a Rel-19 NES terminal, the terminal device receives a secondary cell activation MAC CE, the terminal device assumes that the first serving cell transmits an SSB, or the terminal device assumes that the first serving cell transmits an SSB after receiving the secondary cell activation MAC CE, and the terminal device assumes that measurement and / or synchronization operations are performed after receiving the secondary cell activation MAC CE; and / or,

[0134] The terminal device receives the secondary cell deactivation MAC CE, and the terminal device assumes that the serving cell does not transmit the SSB after receiving the secondary cell deactivation MAC CE, and the terminal device does not perform measurement and / or synchronization operations.

[0135] For another example, when the terminal device receives the secondary cell addition / modification configuration information and the secondary cell activation MAC CE at the same time, the terminal device does not expect the SSB transmission indication information / parameter / IE contained in the secondary cell addition / modification configuration information to indicate that the first service cell does not send SSB.

[0136] In some embodiments, the 1 SSB configuration is activated / indicated via DCI; the DCI is group common signaling and / or UE-specific signaling.

[0137] For example, Group common signaling can be used for activation / triggering / indication of SSB configuration. For example, it can be used after the secondary cell is activated, or after the secondary cell is configured but not activated.

[0138] For another example, UE-specific signaling can be used for activation / triggering / indication of SSB configuration. For example, existing DCI can be reused for activation / triggering / indication of SSB configuration, or a new DCI can be defined for activation / triggering / indication of SSB configuration.

[0139] In some embodiments, the activated SSB configuration starts from the end time of the PDCCH carrying the SSB configuration activation.

[0140] The above schematically illustrates the contents related to SSB configuration and activation. The following describes the SSB signal structure.

[0141] FIG4 is an example diagram of an SSB according to an embodiment of the present application. It illustrates normal SSB transmission and reduced SSB transmission. The simplified SSB / DRS signal structure can be at least one of the following: the simplified / reduced SSB / DRS includes only the PSS and SSS but not the PBCH; the simplified / reduced SSB / DRS includes the complete PSS and SSS, as well as part of the PBCH; the simplified / reduced SSB / DRS includes the complete PSS and SSS, and other NES-related information; and so on.

[0142] In some embodiments, Rel-19 NES does not support the simplified / reduced SSB / DRS signal structure, and the SSB signal structure is consistent with the existing protocol. For example, the reduced SSB signal structure shown in Figure 4, which only includes the PSS and SSS, is not supported. In other embodiments, Rel-19 NES does support the simplified / reduced SSB / DRS signal structure, and the SSB signal structure is consistent with the existing protocol. For example, the reduced SSB signal structure shown in Figure 4, which only includes the PSS and SSS, is supported.

[0143] FIG5 is an example diagram of an SSB pattern according to an embodiment of the present application, illustrating a normal SSB pattern (120kHz SCS) and a compact / modified SSB pattern. For example, compared to a normal SSB, a compact / modified SSB pattern changes the time domain position of the SSB within the SSB burst, shortening / reducing the time domain interval between each two SSBs.

[0144] In some embodiments, Rel-19 NES does not support the compact / modified SSB pattern shown in Figure 5 , and the time-frequency position of the SSB in the SS-burst is consistent with the existing protocol. In other embodiments, Rel-19 NES supports the compact / modified SSB pattern shown in Figure 5 .

[0145] In some embodiments, multiple SSB configurations may be included. Taking f<3 GHz, scs=15 kHz as an example, for example, SSB configuration 0, SSB configuration 1, SSB configuration 2, SSB configuration 3, and SSB configuration 4 may be included.

[0146] For example, Figure 6 is an example diagram of SSB configuration 0 according to an embodiment of the present application. For example, SSB configuration 0 may be referred to as a normal SSB (or reference pattern). In an SS-burst, there are four SSBs, with a period of 20 ms. For example, RRC parameters may be ssb-PositionsInBurst = 1111, ssb-periodicityServingCell = ms20.

[0147] For another example, SSB configuration 1 can be called non-SSB. For example, this configuration can be not configured, and L1 / L2 signaling can be used to implement non-SSB. For example, when the predefined DCI or MAC CE indicates 0, it indicates non-SSB.

[0148] For another example, Figure 7 is an example diagram of SSB configuration 2 according to an embodiment of the present application. For example, SSB configuration 2 has a longer period than SSB configuration 0 (normal SSB, or reference pattern). For example, as shown in Figure 7, there are four SSBs in the SS-burst, with a period of 40ms. The RRC parameters, for example, are ssb-PositionsInBurst = 1111, ssb-periodicityServingCell = ms40.

[0149] As another example, Figure 8 illustrates an example of SSB configuration 3 according to an embodiment of the present application. Compared to SSB configuration 0 (normal SSB, or reference pattern), SSB configuration 3 has a partial beam. For example, as shown in Figure 8 , there is one SSB in the SS-burst, with a period of 40 ms. The RRC parameters, for example, are ssb-PositionsInBurst = 1000 and ssb-periodicityServingCell = ms40.

[0150] For another example, FIG9 is an example diagram of SSB configuration 4 according to an embodiment of the present application. For example, SSB configuration 4 may have at least two types. For example, as shown in FIG9 , SSB type 1 has four SSBs in an SS-burst with a period of 20 ms, and SSB type 2 has one SSB in an SS-burst with a period of 20 ms.

[0151] The above is only a schematic illustration of the SSB configuration, and the present application is not limited thereto. For example, it may include one or any combination of the above, or other SSB configurations. In addition, the naming of the above SSB configuration is not limited thereto and may be other names.

[0152] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0153] It can be seen from the above embodiments that in some scenarios of wireless communication applications (such as energy-saving mode), network equipment and terminal equipment can quickly and flexibly adjust SSB transmission, which can not only improve network gain (such as energy-saving gain) but also ensure normal transmission of terminal equipment.

[0154] Embodiments of the second aspect

[0155] The embodiment of the present application provides a method for indicating a synchronization signal block, which is described from the perspective of a network device. The embodiment of the second aspect can be combined with the embodiment of the first aspect, and the same contents as the embodiment of the first aspect will not be repeated.

[0156] FIG10 is a schematic diagram of a method for indicating a synchronization signal block according to an embodiment of the present application. As shown in FIG10 , the method includes:

[0157] 1001, the network device sends N synchronization signal block (SSB) configurations to the terminal device; and / or,

[0158] 1002. The network device sends RRC signaling and / or MAC CE and / or DCI to the terminal device; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one of the N synchronization signal block configurations.

[0159] It is worth noting that FIG10 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG10 above.

[0160] In some embodiments, the network device may send N SSB configurations and activate one of the N SSB configurations through the same RRC signaling. In other embodiments, the network device may send N SSB configurations through one RRC signaling and activate one of the N SSB configurations through another RRC signaling.

[0161] In some embodiments, the network device may send N SSB configurations through one RRC signaling and activate one of the N SSB configurations through MAC CE. In other embodiments, the network device may send N SSB configurations through one RRC signaling and activate one of the N SSB configurations through DCI.

[0162] In some embodiments, the network device may send N SSB configurations through one RRC signaling, activate M of the N SSB configurations through MAC CE, and indicate one of the M activated SSB configurations through DCI.

[0163] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0164] It can be seen from the above embodiments that in some scenarios of wireless communication applications (such as energy-saving mode), network equipment and terminal equipment can quickly and flexibly adjust SSB transmission, which can not only improve network gain (such as energy-saving gain) but also ensure normal transmission of terminal equipment.

[0165] Embodiments of the third aspect

[0166] The embodiment of the present application provides an indication device for a synchronization signal block. The device may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the same contents as those in the embodiment of the first aspect are not repeated here.

[0167] FIG11 is a schematic diagram of an indication device for a synchronization signal block according to an embodiment of the present application. As shown in FIG11 , the indication device 1100 for a synchronization signal block includes:

[0168] A receiving unit 1101 receives N synchronization signal block (SSB) configurations from a network device, where N ≥ 1; and / or receives RRC signaling and / or MAC CE and / or DCI; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one of the N synchronization signal block configurations.

[0169] In some embodiments, as shown in FIG11 , the synchronization signal block indication device 1100 may further include:

[0170] The sending unit 1102 sends feedback information to the network device.

[0171] In some embodiments, the synchronization signal block configuration is related to a first serving cell / first carrier.

[0172] In some embodiments, the first serving cell / first carrier is a secondary cell, and / or the first serving cell / first carrier is a primary cell.

[0173] In some embodiments, the SSB configuration includes one or more parameters, which are used by the terminal device to determine the transmission of SSB and / or are used by the terminal device to determine the activation status of the SSB configuration.

[0174] In some embodiments, one or more parameters included in the SSB configuration are used to indicate whether the SSB configuration is in an activated state, and / or indicate whether the first service cell sends SSB according to the SSB configuration, and / or indicate whether the first service cell sends SSB according to the SSB configuration after the terminal device receives the SSB configuration, and / or indicate whether the first service cell sends SSB according to the SSB configuration during the period from receiving the SSB configuration to receiving the RRC and / or MAC CE and / or DCI, and / or indicate whether the first service cell sends SSB, and / or indicate whether the first service cell sends SSB after the terminal device receives the SSB configuration, and / or indicate whether the first service cell sends SSB during the period from receiving the SSB configuration to receiving the RRC and / or MAC CE and / or DCI.

[0175] In some embodiments, as shown in FIG11 , the synchronization signal block indication device 1100 may further include:

[0176] The processing unit 1103 is configured to perform measurement and / or synchronization based on the one or more parameters.

[0177] In some embodiments, the SSB configuration does not include one or more parameters for determining SSB transmission and / or determining the activation state of the SSB configuration.

[0178] In some embodiments, the terminal device assumes that the first serving cell does not transmit SSB or the first serving cell does not transmit the SSB corresponding to the SSB configuration, and the terminal device does not perform measurement and synchronization.

[0179] In some embodiments, the terminal device assumes that the first serving cell transmits an SSB or the first serving cell transmits an SSB corresponding to the SSB configuration, and the terminal device performs measurement and synchronization based on the SSB.

[0180] In some embodiments, whether the SSB configuration includes one or more parameters for indicating whether the serving cell sends SSB, and / or indicating whether the serving cell sends SSB after the terminal device receives the SSB configuration, and / or indicating whether the serving cell sends SSB during the period from receiving the SSB configuration to receiving the RRC and / or MAC CE and / or DCI.

[0181] In some embodiments, the SSB configuration includes at least one of the following: SSB period, SSB time domain position indication, SSB subframe / half-frame index / offset or SSB time offset, SSB frequency, SSB subcarrier spacing, SSB power, SSB duration, number of SSBs, and SSB transmission timer.

[0182] In some embodiments, the N SSB configurations are sent via RRC, and the RRC activates / indicates the 1 SSB configuration.

[0183] In some embodiments, the one SSB configuration is activated / indicated through MAC CE; the MAC CE is a secondary cell activation / deactivation MAC CE, or the MAC CE is a MAC CE used to activate / trigger / indicate SSB configuration.

[0184] In some embodiments, the first serving cell does not send SSB before the terminal device receives the secondary cell activation / deactivation MAC CE, and the secondary cell activation / deactivation MAC CE is used to activate at least one SSB configuration, then the secondary cell activation / deactivation MAC CE is used to trigger / activate / indicate on-demand SSB.

[0185] In some embodiments, when the terminal device receives the secondary cell activation MAC CE, the terminal device assumes that the first serving cell sends an SSB; and / or

[0186] The terminal device receives the secondary cell activation MAC CE, and the terminal device performs measurement and / or synchronization; and / or

[0187] When the terminal device receives the secondary cell deactivation MAC CE, the terminal device assumes that the first serving cell does not send an SSB; and / or

[0188] When the terminal device receives the secondary cell deactivation MAC CE, the terminal device does not perform measurement and / or synchronization.

[0189] In some embodiments, the 1 SSB configuration is activated / indicated via DCI; the DCI is group common signaling and / or UE-specific signaling.

[0190] In some embodiments, the SSB configuration is included in the secondary cell addition / modification configuration information, the MAC CE is a secondary cell activation MAC CE, and / or the SSB configuration is included in the SIB1 or RRC reconfiguration message.

[0191] In some embodiments, if the terminal device receives the secondary cell addition / modification configuration information and the secondary cell activation MAC CE at the same time, the terminal device does not expect the secondary cell addition / modification configuration information to indicate that the serving cell does not send SSB.

[0192] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The synchronization signal block indication device 1100 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0193] In addition, for the sake of simplicity, FIG11 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0194] Through the embodiments of the present application, in some scenarios of wireless communication applications (such as energy-saving mode), network equipment and terminal devices can quickly and flexibly adjust SSB transmission, which can not only improve network gain (such as energy-saving gain) but also ensure normal transmission of terminal devices.

[0195] Embodiments of the fourth aspect

[0196] The embodiment of the present application provides a device for indicating a synchronization signal block. The device may be, for example, a network device, or one or more components or assemblies configured on the network device, and the contents that are the same as those in the first and second aspects of the embodiment are not repeated here.

[0197] FIG12 is a schematic diagram of an indication device for a synchronization signal block according to an embodiment of the present application. As shown in FIG12 , the indication device 1200 for a synchronization signal block includes:

[0198] A sending unit 1201 sends N synchronization signal block (SSB) configurations to a terminal device, where N≥1; and / or sends RRC signaling and / or MAC CE and / or DCI to the terminal device; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one of the N synchronization signal block configurations.

[0199] In some embodiments, as shown in FIG12 , the synchronization signal block indication device 1200 may further include:

[0200] The receiving unit 1202 receives feedback information from the terminal device.

[0201] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The synchronization signal block indication device 1200 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0202] In addition, for the sake of simplicity, FIG12 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0203] Through the embodiments of the present application, in some scenarios of wireless communication applications (such as energy-saving mode), network equipment and terminal devices can quickly and flexibly adjust SSB transmission, which can not only improve network gain (such as energy-saving gain) but also ensure normal transmission of terminal devices.

[0204] Embodiments of the fifth aspect

[0205] An embodiment of the present application also provides a communication system, and reference may be made to FIG1 . The contents that are the same as those in the first to fourth aspects of the embodiments will not be repeated.

[0206] In some embodiments, the communication system 100 may include at least:

[0207] A network device, which sends N synchronization signal block (SSB) configurations to a terminal device, where N≥1; and / or sends RRC signaling and / or MAC CE and / or DCI to the terminal device;

[0208] A terminal device, wherein the N synchronization signal blocks (SSB) are configured, and / or receives RRC signaling and / or MAC CE and / or DCI; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one synchronization signal block configuration among the N synchronization signal block configurations.

[0209] The embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.

[0210] Figure 13 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 13 , terminal device 1300 may include a processor 1310 and a memory 1320. Memory 1320 stores data and programs and is coupled to processor 1310. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.

[0211] For example, the processor 1310 may be configured to execute a program to implement the synchronization signal block indication method as described in the embodiment of the first aspect. For example, the processor 1310 may be configured to perform the following control: receiving N synchronization signal block (SSB) configurations from a network device, where N ≥ 1; and / or receiving RRC signaling and / or MAC CE and / or DCI; the RRC signaling and / or MAC CE and / or DCI is used to indicate / activate / trigger one of the N synchronization signal block configurations.

[0212] As shown in Figure 13 , the terminal device 1300 may further include: a communication module 1330, an input unit 1340, a display 1350, and a power supply 1360. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 1300 does not necessarily include all of the components shown in Figure 13 , and these components are not essential. Furthermore, the terminal device 1300 may also include components not shown in Figure 13 , for which reference may be made to the prior art.

[0213] An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.

[0214] Figure 14 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application. As shown in Figure 14 , network device 1400 may include a processor 1410 (e.g., a central processing unit (CPU)) and a memory 1420 ; the memory 1420 is coupled to the processor 1410 . The memory 1420 may store various data and may also store an information processing program 1430 , which is executed under the control of the processor 1410 .

[0215] For example, the processor 1410 may be configured to execute a program to implement the synchronization signal block indication method as described in the embodiment of the second aspect. For example, the processor 1410 may be configured to perform the following control: sending N synchronization signal block (SSB) configurations to a terminal device, where N ≥ 1; and / or, sending RRC signaling and / or MAC CE and / or DCI to the terminal device; the RRC signaling and / or MAC CE and / or DCI is used to indicate / activate / trigger one of the N synchronization signal block configurations.

[0216] In addition, as shown in FIG14 , network device 1400 may further include: a transceiver 1440 and an antenna 1450, etc.; wherein, the functions of the above components are similar to those in the prior art and are not described in detail here. It is worth noting that network device 1400 does not necessarily include all the components shown in FIG14 ; in addition, network device 1400 may also include components not shown in FIG14 , and reference may be made to the prior art for details.

[0217] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program enables the terminal device to execute the method for indicating the synchronization signal block described in the embodiment of the first aspect.

[0218] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the method for indicating a synchronization signal block described in the embodiment of the first aspect.

[0219] An embodiment of the present application also provides a computer program, wherein when the program is executed in a network device, the program enables the network device to execute the method for indicating the synchronization signal block described in the embodiment of the second aspect.

[0220] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables the network device to execute the method for indicating the synchronization signal block described in the embodiment of the second aspect.

[0221] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0222] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0223] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and storage medium may be located in an ASIC. The software module may be stored in the memory of a mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if a device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0224] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0225] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

[0226] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:

[0227] 1. A synchronization signal block (SSB) indication method, comprising:

[0228] The terminal device receives N synchronization signal block (SSB) configurations from the network device, where N ≥ 1; and / or,

[0229] The terminal device receives RRC signaling and / or MAC CE and / or DCI; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one synchronization signal block configuration among the N synchronization signal block configurations.

[0230] 2. A synchronization signal block (SSB) indication method, comprising:

[0231] The network device sends N synchronization signal block (SSB) configurations to the terminal device, where N ≥ 1; and / or,

[0232] The network device sends RRC signaling and / or MAC CE and / or DCI to the terminal device; the RRC signaling and / or MAC CE and / or DCI are used to indicate / activate / trigger one synchronization signal block configuration among the N synchronization signal block configurations.

[0233] 3. A terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method for indicating a synchronization signal block as described in Note 1.

[0234] 4. A network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method for indicating a synchronization signal block as described in Note 2.

[0235] 5. A computer program product that enables a terminal device to execute the method for indicating a synchronization signal block as described in Note 1.

[0236] 6. A computer program product that enables a network device to execute the method for indicating a synchronization signal block as described in Note 2.

Claims

1. A synchronization signal block indication device, comprising: a receiving unit, which receives N synchronization signal block configurations from a network device, where N≥1; and / or, receives RRC signaling and / or MAC CE and / or DCI; the RRC signaling and / or MAC CE and / or DCI is used to indicate / activate / trigger one of the N synchronization signal block configurations.

2. The device according to claim 1, wherein The synchronization signal block configuration is related to a first serving cell / first carrier.

3. The apparatus according to claim 2, wherein The first serving cell / first carrier is a secondary cell, and / or, the first serving cell / first carrier is a primary cell.

4. The device according to claim 1, wherein, The synchronization signal block configuration includes one or more parameters, which are used by a terminal device to determine the transmission of a synchronization signal block and / or are used by the terminal device to determine the activation state of the synchronization signal block configuration.

5. The device according to claim 4, wherein, One or more parameters included in the synchronization signal block configuration are used to indicate that the synchronization signal block configuration is in an active state, and / or indicate whether the first serving cell transmits a synchronization signal block according to the synchronization signal block configuration, and / or indicate whether the first serving cell transmits a synchronization signal block according to the synchronization signal block configuration after the terminal device receives the synchronization signal block configuration, and / or indicate whether the first serving cell transmits a synchronization signal block according to the synchronization signal block configuration during the period from when the terminal device receives the synchronization signal block configuration to when it receives the RRC and / or MAC CE and / or DCI, and / or indicate whether the first serving cell transmits a synchronization signal block, and / or indicate whether the first serving cell transmits a synchronization signal block after the terminal device receives the synchronization signal block configuration, and / or indicate whether the first serving cell transmits a synchronization signal block during the period from when the terminal device receives the synchronization signal block configuration to when it receives the RRC and / or MAC CE and / or DCI.

6. The device according to claim 4, wherein The device further includes: a processing unit, which performs measurement and / or synchronization based on the one or more parameters.

7. The device according to claim 1, wherein The synchronization signal block configuration does not include one or more parameters for determining the transmission of a synchronization signal block and / or determining the activation state of the synchronization signal block configuration.

8. The apparatus according to claim 7, wherein, The terminal device assumes that the first serving cell does not transmit a synchronization signal block or the first serving cell does not transmit the synchronization signal block corresponding to the synchronization signal block configuration, and the terminal device does not perform measurement and synchronization.

9. The apparatus according to claim 7, wherein, The terminal device assumes that the first serving cell transmits a synchronization signal block or the first serving cell transmits the synchronization signal block corresponding to the synchronization signal block configuration, and the terminal device performs measurement and synchronization based on the synchronization signal block.

10. The apparatus according to claim 1, wherein Whether the synchronization signal block configuration includes one or more parameters for indicating whether the serving cell transmits a synchronization signal block, and / or indicating whether the serving cell transmits a synchronization signal block after the terminal device receives the synchronization signal block configuration, and / or indicating whether the serving cell transmits a synchronization signal block during the period from when the terminal device receives the synchronization signal block configuration to when it receives the RRC and / or MAC CE and / or DCI.

11. The device according to claim 1, wherein, The synchronization signal block configuration includes at least one of the following: synchronization signal block period, synchronization signal block time domain position indication, synchronization signal block subframe / half-frame index / offset or synchronization signal block time offset, synchronization signal block frequency, synchronization signal block subcarrier spacing, synchronization signal block power, synchronization signal block duration, number of synchronization signal blocks, synchronization signal block transmission timer.

12. The device according to claim 1, wherein The N synchronization signal block configurations are sent via RRC, and the one synchronization signal block configuration is activated / indicated by the RRC.

13. The apparatus according to claim 1, wherein The one synchronization signal block configuration is activated / indicated via a MAC CE; the MAC CE is a secondary cell activation / deactivation MAC CE, or the MAC CE is a MAC CE for activating / triggering / indicating a synchronization signal block configuration.

14. The apparatus according to claim 13, wherein, If the terminal device assumes that the primary serving cell does not transmit synchronization signal blocks before receiving the secondary cell activation / deactivation MAC CE, and the secondary cell activation / deactivation MAC CE is at least used to activate one synchronization signal block configuration, then the secondary cell activation / deactivation MAC CE is used to trigger / activate / indicate on-demand synchronization signal blocks.

15. The apparatus according to claim 13, wherein if the terminal device receives the secondary cell activation MAC CE, then the terminal device assumes that the primary serving cell transmits synchronization signal blocks; and / or if the terminal device receives the secondary cell activation MAC CE, then the terminal device performs measurements and / or synchronization; and / or if the terminal device receives the secondary cell deactivation MAC CE, then the terminal device assumes that the primary serving cell does not transmit synchronization signal blocks; and / or if the terminal device receives the secondary cell deactivation MAC CE, then the terminal device does not perform measurements and / or synchronization.

16. The device according to claim 1, wherein, The one synchronization signal block configuration is activated / indicated via DCI; the DCI is group common signaling and / or UE-specific signaling.

17. The apparatus according to claim 1, wherein, The synchronization signal block configuration is included in the secondary cell addition / modification configuration information, the MAC CE is a secondary cell activation MAC CE, and / or the synchronization signal block configuration is included in SIB1 or an RRC reconfiguration message.

18. The device according to claim 17, wherein If the terminal device receives the secondary cell addition / modification configuration information and the secondary cell activation MAC CE at the same time, then the terminal device does not expect the secondary cell addition / modification configuration information to indicate that the serving cell does not transmit synchronization signal blocks.

19. A synchronization signal block indication apparatus, comprising: a sending unit that sends N synchronization signal block configurations to a terminal device, where N≥1; and / or, sends RRC signaling and / or MAC CE and / or DCI to the terminal device; the RRC signaling and / or MAC CE and / or DCI is used to indicate / activate / trigger one synchronization signal block configuration among the N synchronization signal block configurations.

20. A communication system, comprising: a network device that sends N synchronization signal block configurations to a terminal device, where N≥1; and / or, sends RRC signaling and / or MAC CE and / or DCI to the terminal device; A terminal device that receives the N synchronization signal block configurations, and / or receives RRC signaling and / or MAC CE and / or DCI; the RRC signaling and / or MAC CE and / or DCI is used to indicate / activate / trigger one of the N synchronization signal block configurations.

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